Information processor

Abstract

To provide a novel display panel with excellent convenience, availability and reliability.SOLUTION: A display panel has a display area, a first support, and a second support. The display area includes a first area, a second area and a third area. The first area and the second area have a band-like shape extending in one direction. The third area is sandwiched between the first area and the second area. Also, the first support overlaps the first area, and is less likely to bend than the third area, and the second support overlaps the second area and is less likely to bend than the third area. Further, the second support can rotate relative to the first support around an axis extending in one direction.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] One aspect of the present invention relates to a display panel, an information processing apparatus, or a semiconductor device.

[0002] Note that one aspect of the present invention is not limited to the above technical field. The technical field of one aspect of the invention disclosed in this specification and the like relates to an article, a method, or a manufacturing method. Or, one aspect of the present invention relates to a process, a machine, a manufacture, or a composition (composition of matter). Therefore, more specifically, the technical field of one aspect of the present invention disclosed in this specification can include, as an example, a semiconductor device, a display device, a light-emitting device, a power storage device, a storage device, their driving methods, or their manufacturing methods.

Background Art

[0003] There is known an electronic book terminal having a plurality of flexible display panels having a display unit in which display control is performed by a scanning line driving circuit and a signal line driving circuit, and a binding unit for fixing the plurality of display panels, with a signal line driving circuit provided inside the binding unit and a scanning line driving circuit provided at an end portion in a direction perpendicular to the binding unit in the display panel (Patent Document 1).

Prior Art Document

Patent Document

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] One aspect of the present invention provides a novel display panel excellent in convenience, usefulness, or reliability. One of the problems is this. Or, a novel information processing device excellent in convenience, usefulness, or reliability is provided as one of the problems. Or, a novel display panel or a novel semiconductor device is provided as one of the problems.

[0006] Note that the description of these problems does not prevent the existence of other problems. Note that one aspect of the present invention does not need to solve all of these problems. Note that other problems will become apparent from the description in the specification, drawings, claims, etc., and it is possible to extract these other problems from the description in the specification, drawings, claims, etc.

Means for Solving the Problems

[0007] (1) One aspect of the present invention is a display panel having a display area, a first support, and a second support.

[0008] The display area includes a first area, a second area, and a third area. Also, the first area and the second area have a strip shape extending in one direction. The third area is sandwiched between the first area and the second area.

[0009] The first support overlaps the first area, and the first support is less likely to bend than the third area.

[0010] The second support overlaps the second area, and the second support is less likely to bend than the third area.

[0011] The second support can rotate with respect to the first support about an axis extending in one direction.

[0012] Thereby, the display area can be bent so that a ridge portion is formed in the third area. ​​​Alternatively, the number of ridge portions formed in the third region can be limited to one or less, so that a plurality of ridge portions are not formed in the third region. Or, ridge portions with a small radius of curvature can be prevented from being formed separately from ridge portions with a large radius of curvature. Or, the bending direction can be restricted so that a plurality of ridge portions protruding in opposite directions are not formed in the third region. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. Or, ridge portions with a small radius of curvature can be prevented from being formed separately from ridge portions with a large radius of curvature. Or, the bending direction can be restricted so that a plurality of ridge portions protruding in opposite directions are not formed in the third region. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0013] (2) Another aspect of the present invention is the above-described display panel having a hinge.

[0014] The hinge includes a first link and a second link.

[0015] The first link is connected to a first support.

[0016] The second link is connected to a second support, and the second link can rotate with respect to the first link about an axis extending in one direction. As a result, the second support can rotate with respect to the first support about an axis extending in one direction.

[0017] As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0018] (3) Another aspect of the present invention is the above-described display panel in which the hinge includes a first hook, a first joint, a second joint, and a third joint. The first link includes a first end portion and a second end portion.

[0019] The first link includes a first end portion and a second end portion.

[0020] The second link includes a third end portion and a fourth end portion.

[0021] The first hook includes a fifth end and a sixth end.

[0022] The first joint connects a first end and a fourth end such that a first link and a second link are in a circumferential conjugate relationship.

[0023] The second joint connects a second end and a fifth end such that a first link and a first hook are in a circumferential conjugate relationship.

[0024] The third joint has a first distance D1 from the second joint. Further, the third joint engages with the first hook such that the first distance D1 is equal to or less than a predetermined distance.

[0025] As a result, the second support can be rotated relative to the first support about an axis passing through the first joint. Alternatively, the third region can be bent such that a ridge is formed along the axis passing through the first joint. Alternatively, the maximum rotation range of the second link relative to the first link can be limited. Alternatively, the third region can be bent while limiting the curvature. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0026] (4) Further, one aspect of the present invention is the above-described display panel in which the first distance D1 is the shortest at a position where the first link and the second link interfere with each other.

[0027] As a result, the rotation range of the second link relative to the first link can be limited. Alternatively, the minimum and maximum of the rotation range can be limited. Alternatively, the third region can be bent while limiting the minimum of the radius of curvature. As a result, convenience, usefulness, or reliability ​​​​​​​​​​​ A novel display panel with excellent properties can be provided.

[0028] (5) Further, in one aspect of the present invention, as one rotation around the second joint occurs, the first hook engages with the third joint, and as the other rotation around the second joint occurs, the first hook disengages from the third joint. This is the display panel described above.

[0029] Thereby, the second link can be held in a predetermined position. Or, the second link can move relative to the first link. Or, the first distance D1 can be maintained at a predetermined distance. Or, the first distance D1 can be changed. As a result, a novel display panel with excellent convenience, usability, or reliability can be provided.

[0030] (6) Further, in one aspect of the present invention, the second joint is provided away from the center of gravity of the first hook, and the first hook can rotate by its own weight around the second joint. This is the display panel described above.

[0031] Thereby, the user can, for example, tilt the hinge in a predetermined one direction to engage the first hook with the third joint. Or, the user can, for example, tilt the hinge in a predetermined other direction to disengage the first hook from the third joint. As a result, a novel display panel with excellent convenience, usability, or reliability can be provided.

[0032]

[0033] (7) Further, in one aspect of the present invention, it is the display panel having the third link, the second hook, the fourth joint, and the fifth joint.

[0033] The second link includes a seventh end portion.

[0034] The third link includes an eighth end portion and a ninth end portion.

[0035] The second hook includes a tenth end portion and an eleventh end portion.

[0036] The fourth joint connects the seventh end portion and the ninth end portion such that the second link and the third link are in a circumferential conjugate relationship. and the ninth end portion.

[0037] The third joint connects the third end portion and the tenth end portion such that the second link and the second hook are in a circumferential conjugate relationship. and the tenth end portion.

[0038] The fifth joint has a second distance D2 from the second joint. Further, the fifth joint engages with the second hook such that the second distance D2 is equal to or less than a predetermined distance. and the second hook such that the second distance D2 is equal to or less than a predetermined distance.

[0039] Thereby, the maximum of the rotation range of the third link with respect to the second link can be restricted. Or, for example, it can be bent at a plurality of locations of the first joint and the fourth joint. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0040] (8) Further, one aspect of the present invention is the above-described display panel in which the second distance D2 is the shortest at a position where the second link and the third link interfere.

[0041] Thereby, the rotation range of the third link with respect to the second link can be restricted. Alternatively, the minimum and maximum of the rotation range can be restricted. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0042] ​​(9) Further, one aspect of the present invention is that the second distance D2 is equal to or less than the longest distance of the first distance D1, and the second distance D2 is equal to or greater than the shortest distance of the first distance D1, and is the above display panel. That is.

[0043] Thereby, the rotation range of the third link with respect to the second link can be made equal to, for example, the rotation range of the second link with respect to the first link. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. That is.

[0044] (10) Further, one aspect of the present invention is that the third joint is provided away from the center of gravity of the second hook, and the second hook can rotate by its own weight in synchronization with the first hook, and is the above display panel. That is.

[0045] Thereby, for example, the user can engage the second hook with the fifth joint while tilting the hinge to a predetermined one side so that the first hook engages with the third joint. Or, for example, the user can disengage the second hook from the fifth joint while tilting the hinge to a predetermined other side so that the first hook disengages from the third joint. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. That is. That is.

[0046] (11) Further, one aspect of the present invention is the above display panel having a secondary battery.

[0047] The first support houses the secondary battery, and the secondary battery drives the display area.

[0048] Thereby, the charging capacity of the secondary battery can be increased without increasing the volume of the display panel. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. That is. It can be done.

[0049] (12) Also, one aspect of the present invention is the above display panel having a first display area, a second display area, a connecting portion, a first support, a second support, a third support, and a fourth support. The first display area includes a first area, a second area, and a third area. The first area and the second area have a strip shape extending in one direction.

[0050] The third area is sandwiched between the first area and the second area.

[0051] The second display area includes a fourth area, a fifth area, and a sixth area.

[0052] The fourth area and the fifth area have a strip shape extending in one direction. Also, the fourth area faces the first area.

[0053] The sixth area is sandwiched between the fourth area and the fifth area.

[0054] The connecting portion is connected to the first display area and the second display area. The first support overlaps with the first area and is less flexible than the third area.

[0055] The second support overlaps with the second area and is less flexible than the third area.

[0056] The second support can rotate with respect to the first support about an axis extending in one direction.

[0057] The second support can rotate with respect to the first support about an axis extending in one direction.

[0058] The second support overlaps with the second area and is less flexible than the third area.

[0059] The second support can rotate with respect to the first support about an axis extending in one direction. It can be done.

[0060] The third support overlaps with the fourth region, and the third support is less bendable than the sixth region.

[0061] The fourth support overlaps with the fifth region, and the fourth support is less bendable than the sixth region.

[0062] The fourth support can rotate with respect to the third support about an axis extending in one direction. be possible.

[0063] Thereby, the first display area and the second display area can be arranged side by side. Also, the first display area can be folded so as to face the second display area. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0064] (13) One aspect of the present invention is an information processing apparatus having a display unit.

[0065] The display unit includes the above-described display panel, and the display panel includes a first surface, a second surface, and a third surface. be provided.

[0066] The third surface is sandwiched between the first surface and the second surface, and the third surface can bend about an axis extending in one direction. The third surface draws a curve in a plane crossing the axis as it bends, and the curve has an inflection point. The curve has an inflection point.

[0067] (14) Further, one aspect of the present invention is the information processing apparatus in which the third surface has a curvature radius R1 as it bends. be the information processing apparatus.

[0068] The second surface includes a region along the first surface, and the region has a distance shorter than twice the curvature radius R1 between the region and the first surface. be provided.

[0069] As a result, the second surface can be brought closer along the first surface. Or, the second surface can be brought closer while facing the first surface. Or, the overlapping portion of the first surface and the second surface can be thinned. Or, the volume can be reduced. As a result, a novel information processing apparatus excellent in convenience, usefulness or reliability can be provided.

[0070] In the drawings attached to this specification, the components are classified by function and shown as independent blocks in a block diagram, but in actuality, it is difficult to completely separate the actual components by function and one component may be related to multiple functions.

[0071] In this specification, the source and drain of a transistor change their names depending on the polarity of the transistor and the levels of the potentials applied to the respective terminals. Generally, in an n-channel type transistor, the terminal to which a low potential is applied is called the source, and the terminal to which a high potential is applied is called the drain. Also, in a p-channel type transistor, the terminal to which a low potential is applied is called the drain, and the terminal to which a high potential is applied is called the source. In this specification for convenience, when explaining the connection relationship of a transistor, it is assumed that the source and drain are fixed, but actually, the names of the source and drain change according to the above potential relationship.

[0072] In this specification, the source of a transistor means a source region that is a part of a semiconductor film functioning as an active layer or a source electrode connected to the semiconductor film. Similarly, the drain of a transistor means a drain region that is a part of the semiconductor film or a drain electrode connected to the semiconductor film. ​It means the connected drain electrode. Also, the gate means the gate electrode.

[0073] In this specification, the state where transistors are connected in series means, for example, a state where only one of the source or drain of the first transistor is connected to only one of the source or drain of the second transistor. Also, the state where transistors are connected in parallel means a state where one of the source or drain of the first transistor is connected to one of the source or drain of the second transistor, and the other of the source or drain of the first transistor is connected to the other of the source or drain of the second transistor.

[0074] In this specification, "connection" means electrical connection, corresponding to a state where current, voltage or potential can be supplied or transmitted. Therefore, the state of being connected does not necessarily refer to the state of direct connection, but also includes the state of being indirectly connected through circuit elements such as wiring, resistors, diodes, transistors, etc. so that current, voltage or potential can be supplied or transmitted.

[0075] In this specification, even when components that are independent on the circuit diagram are connected, actually, for example, when a part of the wiring functions as an electrode, or when one conductive film has the functions of a plurality of components. In this specification, "connection" includes such cases where one conductive film has the functions of a plurality of components within its scope.

[0076] Also, in this specification, when one of the first electrode or the second electrode of a transistor is the source ​​​​​​​​​​​​One of the electrodes points to the drain electrode.

Advantages of the Invention

[0077] According to one aspect of the present invention, a novel display panel excellent in convenience, usefulness, or reliability can be provided. Alternatively, a novel semiconductor device can be provided.

[0078] Note that the description of these effects does not prevent the existence of other effects. Note that one aspect of the present invention does not necessarily have to have all of these effects. Note that other effects will be obvious from the description in the specification, drawings, claims, etc., and it is possible to extract these other effects from the description in the specification, drawings, claims, etc. Note that one aspect of the present invention does not necessarily have to have all of these effects. Note that other effects will be obvious from the description in the specification, drawings, claims, etc., and it is possible to extract these other effects from the description in the specification, drawings, claims, etc. Note that the description of these effects does not prevent the existence of other effects. Note that one aspect of the present invention does not necessarily have to have all of these effects. Note that other effects will be obvious from the description in the specification, drawings, claims, etc., and it is possible to extract these other effects from the description in the specification, drawings, claims, etc. Note that the description of these effects does not prevent the existence of other effects. Note that one aspect of the present invention does not necessarily have to have all of these effects. Note that other effects will be obvious from the description in the specification, drawings, claims, etc., and it is possible to extract these other effects from the description in the specification, drawings, claims, etc.

Brief Description of the Drawings

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[0080] A display panel according to an aspect of the present invention includes a display area, a first support, and a second support. The display area includes a first area, a second area, and a third area. The first area and the second area have a strip shape extending in one direction, and the third area is sandwiched between the first area and the second area. The first support overlaps the first area and is less flexible than the third area, and the second support overlaps the second area and is less flexible than the third area. Further, the second support can rotate with respect to the first support about an axis extending in one direction. Accordingly, the display area can be bent so that a ridge is formed in the third area.

[0081] Alternatively, the number of ridges formed in the third area can be limited to one or less so that a plurality of ridges are not formed in the third area. Alternatively, ridges with a small radius of curvature can be prevented from being formed separately from ridges with a large radius of curvature. Alternatively, the bending direction can be limited so that a plurality of ridges protruding in opposite directions are not formed in the third area. ​​​​This makes it possible to provide a novel display panel with excellent convenience or reliability. This can be achieved.

[0082] Embodiments will be described in detail with reference to the drawings. However, the present invention is not limited to the following description, and it is easily understood by those skilled in the art that the form and details can be variously changed without departing from the spirit and scope of the present invention. Therefore, the present invention should not be construed as being limited to the description of the embodiments shown below. In the configuration of the invention described below, the same reference numerals are commonly used between different drawings for the same part or parts having the same function, and the repeated description thereof will be omitted. Moreover, the present embodiment can be appropriately combined with other embodiments shown in this specification. It should be noted that the present invention is not limited to the description of the embodiments shown below. In the configuration of the invention described below, the same reference numerals are commonly used between different drawings for the same part or parts having the same function, and the repeated description thereof will be omitted. It should be noted that the present invention is not limited to the description of the embodiments shown below. In the configuration of the invention described below, the same reference numerals are commonly used between different drawings for the same part or parts having the same function, and the repeated description thereof will be omitted. In the configuration of the invention described below, the same reference numerals are commonly used between different drawings for the same part or parts having the same function, and the repeated description thereof will be omitted. The repeated description thereof will be omitted.

[0083] Moreover, the present embodiment can be appropriately combined with other embodiments shown in this specification.

[0084] (Embodiment 1) In the present embodiment, the configuration of the display panel according to one aspect of the present invention will be described with reference to FIGS. 1 to 4.

[0085] FIG. 1 is a diagram for explaining the configuration of the display panel according to one aspect of the present invention. FIG. 1A is a perspective view of the display panel according to one aspect of the present invention, and FIGS. 1B and 1C are perspective views for explaining the bent state of the display panel shown in FIG. 1A.

[0086] FIG. 2 is a diagram for explaining the configuration of the display panel according to one aspect of the present invention. FIG. 2A is a perspective view of the display panel according to one aspect of the present invention, and FIG. 2B is a perspective view of the display panel shown in FIG. 2A drawn from another direction.

[0087] FIG. 3 is a diagram for explaining the configuration of the display panel according to one aspect of the present invention. FIG. 3A is a perspective view of the display panel according to one aspect of the present invention. It is a perspective view for explaining the configuration of the display panel, and FIG. 3B is a cross section taken along the cutting plane YZ of FIG. 3A. It is a figure. Further, FIG. 3C is a perspective view for explaining the configuration of the display panel according to one aspect of the present invention, and FIG. 3D is an exploded assembly view for explaining a part of the display panel shown in FIG. 3C.

[0088] FIG. 4 is a diagram for explaining the function of the display panel according to one aspect of the present invention. FIG. 4A is a perspective view for explaining the function of the display panel, and FIG. 4B is a cross-sectional view taken along the cutting plane YZ of FIG. 4A. Further, FIG. 4C is a perspective view for explaining the function of the display panel, and FIG. 4D is a cross-sectional view taken along the cutting plane YZ of FIG. 4C is a cross-sectional view.

[0089] In this specification, when using a variable taking a value of one or more integers as a symbol, for example, (p) including a variable p taking a value of one or more integers may be used as part of a symbol for specifying any one of up to p components. Also, for example, (m,n) including a variable m and a variable n taking values of one or more integers may be used as part of a symbol for specifying any one of up to m×n components. For example, (p) including a variable p taking a value of one or more integers may be used as part of a symbol for specifying any one of up to p components. Also, for example, (m,n) including a variable m and a variable n taking values of one or more integers may be used as part of a symbol for specifying any one of up to m×n components. For example, (p) including a variable p taking a value of one or more integers may be used as part of a symbol for specifying any one of up to p components. Also, for example, (m,n) including a variable m and a variable n taking values of one or more integers may be used as part of a symbol for specifying any one of up to m×n components. For example, (p) including a variable p taking a value of one or more integers may be used as part of a symbol for specifying any one of up to p components. Also, for example, (m,n) including a variable m and a variable n taking values of one or more integers may be used as part of a symbol for specifying any one of up to m×n components. For example, (p) including a variable p taking a value of one or more integers may be used as part of a symbol for specifying any one of up to p components. Also, for example, (m,n) including a variable m and a variable n taking values of one or more integers may be used as part of a symbol for specifying any one of up to m×n components.

[0090] <Example 1 of the configuration of the display panel.> The display panel described in this embodiment has a display area 231, a support 30(i), and a support 30(i + 1) (see FIGS. 2A and 2B). For example, the display area 231 includes area 231C(1), area 231C(2), and area 231C(3) (see FIG. 1A ).

[0091] 《Example 1 of the configuration of the display area 231.》 The display area 231 includes area 231(i), area 231(i + 1), and area 231S(i) (see FIG. 2B). For example, area 231S(i) has a width of 1 mm or less, preferably 0 It has a width of 0.5 mm or less.

[0092] Regions 231(i) and 231(i + 1) have a strip shape extending in one direction (e.g., the direction indicated by arrow X in the figure). It has a strip shape extending in one direction (e.g., the direction indicated by arrow X in the figure).

[0093] Region 231S(i) is sandwiched between regions 231(i) and 231(i + 1).

[0094] 《Configuration Example of Support 30(i)》 Support 30(i) overlaps with region 231(i). For example, a shape elongated in the direction indicated by arrow X can be used for support 30(i). It can be used for support 30(i).

[0095] Support 30(i) is less likely to bend than region 231S(i). In other words, region 231S(i) can be bent more easily than support 30(i). Or, when gradually applying force, region 231S(i) bends before support 30(i). Region 231S(i) bends before support 30(i).

[0096] 《Configuration Example of Support 30(i + 1)》 Support 30(i + 1) overlaps with region 231(i + 1), and support 30(i + 1) is less likely to bend than region 231S(i).

[0097] Also, support 30(i + 1) can rotate with respect to support 30(i) about an axis extending in one direction (e.g., the direction indicated by arrow X in the figure) (see Fig. 3B). For example, support 30(i + 1) can rotate with respect to support 30(i) about an axis passing through region 231S(i) and extending in the direction indicated by arrow X. Support 30(i + 1) can rotate with respect to support 30(i).

[0098] Thereby, the display region 231 is bent so that a ridge is formed in region 231S(i). It is possible. Alternatively, the number of ridge portions formed in the region 231S(i) can be limited to one or less, so that a plurality of ridge portions are not formed in the region 231S(i). Alternatively, the curvature radius can be such that, apart from the ridge portion with a large radius of curvature, a ridge portion with a small radius of curvature is not formed in the region 231S(i). Alternatively, the bending direction can be restricted so that a plurality of ridge portions protruding in opposite directions are not formed in the region 231S(i). As a result, a novel display panel excellent in convenience, utility or reliability can be provided. In the present specification, in a cross-section orthogonal to the curved surface, a linear region connecting portions with the smallest radius of curvature is referred to as a ridge portion. Also, for the sake of convenience, a convex curved surface with no change in the radius of curvature is assumed to have one

[0099] ridge portion. For example, when the display panel does not have the supports 30(i) and 30(i + 1), the display region 231 can be bent in various ways. Specifically, the display region 231 can be bent so that one ridge portion is formed (see FIGS. 4A and 4B).

[0100] Alternatively, for example, the display region 231 can be bent so that a plurality of ridge portions such as ridge portion E1 to ridge portion E4 are formed (see FIGS. 4C and 4D). When a plurality of ridge portions are formed, a ridge portion E3 or a ridge portion E4 with an extremely small radius of curvature may be formed in the display region 231. Also, in a portion E5 where the ridge portion disappears, the radius of curvature may become extremely small (see FIG. 4C). When the display region 231 is bent with a radius of curvature smaller than a predetermined value, the display region may be damaged. For example, when the radius of curvature is 1 mm or less, (see FIGS. 4A and 4B). Or, for example, the display region 2 31 can be bent so that a plurality of ridge portions such as ridge portion E1 to ridge portion E4 are formed (see FIGS. 4C and 4D).

[0101] When a plurality of ridge portions are formed, a ridge portion E3 or a ridge portion E4 with an extremely small radius of curvature may be formed in the display region 231. Also, in a portion E5 where the ridge portion disappears, the radius of curvature may become extremely small (see FIG. 4C). When the display region 231 is bent with a radius of curvature smaller than a predetermined value, the display region may be damaged. For example, when the radius of curvature is 1 mm or less, (see FIGS. 4C and 4D). (see FIG. 4C). When the display region 231 is bent with a radius of curvature smaller than a predetermined value, the display region may be damaged. For example, when the radius of curvature is 1 mm or less, bending the display region 231 may damage the display region. For example, when the radius of curvature is 1 mm or less, When the display area 231 is bent, display defects may occur.

[0102] <Configuration Example 2 of the Display Panel.> In addition, the display panel described in the present embodiment has a hinge 20(i) (see FIGS. 3C and FIG. 3D).

[0103] <<Configuration Example of the Hinge 20(i)>> The hinge 20(i) includes links 11(i) and 11(i + 1) (see FIG. 3D for reference). Further, the hinge 20(i) includes covers 15(i) and 15(i + 1) . Thereby, the mechanism of the hinge 20(i) can be protected.

[0104] The link 11(i) is connected to the support 30(i). Also, the link 11(i + 1) is connected to the support 30(i + 1).

[0105] The link 11(i + 1) can rotate with respect to the link 11(i) about an axis extending in one direction (for example, the direction indicated by the arrow X in the figure) as the center.

[0106] Thereby, the support 30(i + 1) can rotate with respect to the support 30(i) about an axis extending in one direction (for example, the direction indicated by the arrow X in the figure). As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0107] Note that the present embodiment can be appropriately combined with other embodiments shown in this specification .

[0108] (Embodiment 2) In the present embodiment, the configuration of the hinge that can be used for the display panel of one aspect of the present invention will be described with reference to FIGS. 5 to 14. while referring to FIGS. 5 to 14.

[0109] FIG. 5 is a diagram for explaining the configuration of a hinge that can be used for a display panel according to an aspect of the present invention. FIG. 5A is a perspective view of the hinge, and FIG. 5B is an exploded assembly view of the hinge shown in FIG. 5A.

[0110] FIG. 6 is a diagram for explaining the configuration of a hinge that can be used for a display panel according to an aspect of the present invention. FIG. 6A is a top view of the hinge, and FIGS. 6B to 6D are top views for explaining the components constituting the hinge shown in FIG. 6A.

[0111] FIG. 7 is a diagram for explaining the operation of a hinge that can be used for a display panel according to an aspect of the present invention. FIG. 7A is a top view of the hinge, and FIG. 7B is a top view of a state different from the state shown in FIG. 7A.

[0112] FIG. 8 is a diagram for explaining the operation of a hinge that can be used for a display panel according to an aspect of the present invention. FIG. 8A is a top view of a hook that can be used for the hinge, and FIG. 8B is a top view of a state different from the state of the hook shown in FIG. 8A.

[0113] FIG. 9 is a diagram for explaining the configuration and operation of a hinge that can be used for a display panel according to an aspect of the present invention. FIG. 9A is a top view of the hinge, and FIG. 9B is a top view of a state different from the state shown in FIG. 9A. FIGS. 9C to 9E are top views for explaining the components constituting the hinge shown in FIG. 9A.

[0114] FIG. 10 is a diagram for explaining the configuration and operation of a hinge that can be used for a display panel according to an aspect of the present invention. FIG. 10A is an exploded assembly view of the hinge, and FIG. 10B is a top view for explaining a part of FIG. 10A. FIG. 10C is an exploded assembly view of the hinge in a state different from the state shown in FIG. 10A. ​​​​10D is a top view illustrating a portion of FIG. 10C.

[0115] FIG. 11 is a diagram illustrating a configuration of a display panel according to one embodiment of the present invention. 11B is a perspective view of a display panel according to an embodiment of the present invention, and FIG. 11B is a display panel in a state different from that shown in FIG. 11A. 11C is a perspective view of the display panel shown in FIG. 11B in a bent state. FIG.

[0116] FIG. 12A illustrates a configuration of a display panel according to one embodiment of the present invention. 12B is a perspective view of a display panel according to an embodiment of the present invention, and FIG. 12B is a display panel in a state different from that shown in FIG. 12A. 12C is a cross-sectional view taken along line YZ of FIG. 12B.

[0117] FIG. 13 illustrates a structure of a display panel according to one embodiment of the present invention. 13B is a perspective view illustrating a portion of FIG. 12C, and FIG. 13B is a cross-sectional view illustrating a portion of FIG. 12C.

[0118] FIG. 14 illustrates a structure of a display panel according to one embodiment of the present invention. FIG. 13 is an exploded view of a hinge that can be used with an embodiment display panel.

[0119] <Display panel configuration example 3.> In the display panel described in this embodiment, the hinge 20(i) is connected to the hook 12(i) and the joint 13. A(i), joint 13B(i) and joint 13B(i+1) (FIGS. 5A and 5B reference).

[0120] Example of Link 11(i) configuration Link 11(i) has end 11A(i) and end 11B(i) (see FIG. 6B). Link 11(i) also has end 11C(i).

[0121] 《Configuration Example of Link 11(i + 1)》 Link 11(i + 1) includes end portions 11B(i + 1) and 11C(i + 1) ( see Fig. 6C). Further, link 11(i + 1) includes end portion 11A(i + 1).

[0122] 《Configuration Example 1 of Hook 12(i)》 Hook 12(i) includes end portions 12A(i) and 12B(i) (see Fig. 6D) .

[0123] 《Configuration Example of Joint 13A(i)》 Joint 13A(i) connects end portion 11A(i) and end portion 11C(i + 1) so that link 11(i) and link 11(i + 1) are reciprocal in rotation (see Figs. 5A, 6A, 7A and 7B). For example, a shaft and a bearing can be used for joint 13A(i) .

[0124] 《Configuration Example 1 of Joint 13B(i)》 Joint 13B(i) connects end portion 11B(i) and end portion 12A(i) so that link 11(i) and hook 12(i) are reciprocal in rotation . For example, a shaft and a bearing can be used for joint 13B(i).

[0125] 《Configuration Example 1 of Joint 13B(i + 1)》 Joint 13B(i + 1) has a first distance D1 from joint 13B(i). Further, joint 13B(i + 1) engages with hook 12(i) so that the first distance D1 is equal to or less than a predetermined distance (see Figs. 7A and 7B). Joint 13B(i + 1) and hook 12(i) are connected so that the first distance D1 can change. For example, they are connected to be a sliding pair . Connect the hand 13B(i + 1) and the hook 12(i). Also, a shape with a recess that engages with the joint 13B(i + 1) can be used for the end portion 12B(i) (see FIGS. 6A and 6 D).

[0126] As a result, the support 30(i + 1) can be rotated with respect to the support 30( i) about the axis passing through the joint 13A(i). Alternatively, the region 231S(i) can be bent such that a ridge portion is formed along the axis passing through the joint 13A(i). Alternatively, the maximum of the rotation range of the link 11(i + 1) with respect to the link 11( i) can be limited. Alternatively, the region 231S(i) can be bent while limiting the curvature. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0127] <Configuration Example 4 of Display Panel.> Also, the hinge 20(i) included in the display panel described in this embodiment has the shortest first distance D1 at the position where the link 11(i ) and the link 11(i + 1) interfere (see FIGS. 7A and 7B). For example, the bend that appears in the joint 13A(i) becomes the steepest at the position where the link 11( i) and the link 11(i + 1) interfere (see FIG. 7B) .

[0128] As a result, the rotation range of the link 11(i + 1) with respect to the link 11(i) can be limited. Alternatively, the minimum and maximum of the rotation range can be limited. Alternatively, the region 231S(i) can be bent while limiting the minimum of the radius of curvature. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0129] ​​​​​《Configuration Example 2 of Hook 12(i).》 As Hook 12(i) rotates around the joint 13B(i) in one direction, it engages with joint 13B(i +1) (see Fig. 7A). For example, at the position where the first distance D1 is the longest, Hook 12(i) engages with joint 13B(i).

[0130] Also, as Hook 12(i) rotates around the joint 13B(i) in the other direction, it disengages from joint 13B (i + 1) (see Fig. 7B). For example, joint 13B(i + 1) disengages from the shape with a recess at the end 12B(i) of Hook 12(i).

[0131] As a result, link 11(i + 1) can be fixed at a predetermined position. Or, link 11(i + 1) can be moved relative to link 11(i). Or, the first distance D1 can be maintained at a predetermined distance. Or, the first distance D1 can be changed. As a result, a novel display panel with excellent convenience, usability, or reliability can be provided .

[0132] 《Configuration Example 2 of Joint 13B(i).》 Joint 13B(i) is provided away from the center of gravity of Hook 12(i) (see Fig. 8A).

[0133] 《Configuration Example 3 of Hook 12(i).》 Hook 12(i) can rotate by its own weight around joint 13B(i) (see Figs. 8 A and 8B).

[0134] As a result, the user can, for example, tilt the hinge in a predetermined direction to engage Hook 12(i) with joint 13B(i + 1). Or, the user can, for example, tilt the hinge in a predetermined other direction to ​By tilting the hinge, the hook 12(i) can be removed from the joint 13B(i + 1). As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0135] <Configuration Example 5 of the Display Panel.> In addition, the hinge 20 provided in the display panel described in this embodiment includes a link 11(i + 2), a hook 12(i + 1), a joint 13A(i + 1), and a joint 13B(i + 2) (see Fig. 9A).

[0136] 《Configuration Example 2 of Link 11(i + 1).》 Link 11(i + 1) includes an end portion 11A(i + 1) (see Fig. 9C).

[0137] 《Configuration Example of Link 11(i + 2).》 Link 11(i + 2) includes an end portion 11B(i + 2) and an end portion 11C(i + 2) ( see Fig. 9D). In addition, link 11(i + 2) includes an end portion 11A(i + 2).

[0138] 《Configuration Example of Hook 12(i + 1).》 Hook 12(i + 1) includes an end portion 12A(i + 1) and an end portion 12B(i + 1) ( see Fig. 9E).

[0139] 《Configuration Example of Joint 13A(i + 1).》 Joint 13A(i + 1) connects the end portion 11A(i + 1) and the end portion 11C(i + 2) so that the link 11(i + 1) and the link 11(i + 2) are in a rotational conjugate relationship (see Fig. 9A and Fig. 9B).

[0140] 《Configuration Example 2 of Joint 13B(i + 1).》 Joint 13B(i + 1) is such that the link 11(i + 1) and the hook 12(i + 1) are in a rotational conjugate ​​Connect the end 11B(i + 1) and the end 12A(i + 1) so as to achieve this (see FIGS. 9A, 9B and 9E). Note that the joint 13B(i + 1) also has a function of engaging with the hook 12(i). Thereby, the number of components can be reduced. Also, separately from the joint for engaging with the hook 12( i), a joint may be provided to connect the link 11(i + 1) and the hook 12(i + 1) so that they are rotationally symmetric.

[0141] <<Configuration Example of Joint 13B(i + 2)>> The joint 13B(i + 2) has a second distance D2 from the joint 13B(i + 1). Also, the joint 13B(i + 2) engages with the hook 12 (i + 1) such that the second distance D2 is equal to or less than a predetermined distance.

[0142] Thereby, the maximum of the rotation range of the link 11(i + 2) with respect to the link 11(i + 1) can be limited. Alternatively, for example, the joints 13A(i) and 13A(i + 1) can be bent at a plurality of locations. As a result, a novel display panel excellent in convenience, utility, or reliability can be provided.

[0143] <<Configuration Example 6 of Display Panel.>> Also, the hinge 20 provided in the display panel described in this embodiment has the second distance D2 being the shortest at the position where the link 11(i + 1) and the link 11(i + 2) interfere (see FIGS. 9A and 9B).

[0144] Thereby, the minimum and maximum values of the rotation range of the link 11(i + 2) centered on the joint 13A(i + 1) can be limited. As a result, a novel display panel excellent in convenience, utility, or reliability can be provided. ​

[0145] <Configuration example 7 of the display panel.> In addition, the hinge of the display panel described in this embodiment has a second distance D2 that is less than or equal to the longest distance of the first distance D1 and the second distance D2 is greater than or equal to the shortest distance of the first distance D1 .

[0146] As a result, the rotation range of the link 11(i + 2) centered on the joint 13A(i + 1) is substantially equal to the rotation range of the link 11(i + 1) centered on the joint 13A(i). This makes it possible to provide a novel display panel that is excellent in convenience, usefulness, or reliability .

[0147] 《Configuration example 3 of the joint 13B(i + 1).》 The joint 13B(i + 1) is provided away from the center of gravity of the hook 12(i + 1) (see FIGS. 10B and 10D). In addition, the hook 12(i + 1) can rotate by its own weight in synchronization with the hook 12(i) (see FIGS. 10A and 10C).

[0148] As a result, for example, the user can engage the hook 12(i + 1) with the joint 13B(i + 2) while tilting the hinge in a predetermined direction so that the hook 12(i) engages with the joint 13B(i + 1). Or, for example, the user can disengage the hook 12(i + 1) from the joint 13B(i + 2) while tilting the hinge in a predetermined other direction so that the hook 12(i) disengages from the joint 13B( i + 1). As a result, it is possible to provide a novel display panel that is excellent in convenience, usefulness, or reliability . .

[0149] For example, the display area 231 of the display panel 700 according to one aspect of the present invention is directed upward, for example​​ and the user can engage the hook with the joint (see FIGS. 10A, 10B, and 11A ). When the hook is engaged with the joint, the distance D1 is maintained at a predetermined distance, and the display panel cannot be bent .

[0150] Also, when the display area 231 of the display panel 700 according to one aspect of the present invention is directed downward, for example , the user can remove the hook from the joint (see FIGS. 10C, 10D, and 11B ). When the hook is disengaged from the joint, it can be bent (see FIG. 11C).

[0151] <Configuration Example 8 of Display Panel.> Also, the display panel 700 described in the present embodiment includes a display area 231A, a display area 23 1B, a connecting portion 19, a support 30A(i), a support 30A(i + 1), and a support 30 B(i), and a support 30B(i + 1) (see FIGS. 12A, 12B, and 12C ).

[0152] <Configuration Example of Display Area 231A.> The display area 231A includes an area 231A(i), an area 231A(i + 1), and an area 231A S(i) (see FIG. 13B).

[0153] The areas 231A(i) and 231A(i + 1) have a strip-like shape extending in one direction (for example, the direction indicated by the arrow X in the figure ) (see FIG. 13A).

[0154] The area 231AS(i) is sandwiched between the areas 231A(i) and 231A(i + 1) (see FIG. 13B).

[0155] <Configuration Example of Display Area 231B> The display area 231B includes an area 231B(i), an area 231B(i + 1), and an area 231B It includes S(i) (see Fig. 13B).

[0156] Regions 231B(i) and 231B(i + 1) have a strip shape extending in one direction (for example, the direction indicated by arrow X in the figure). Region 231B(i) faces region 231A(i). (See Fig. 13B). Regions 231B(i) and 231B(i + 1) have a strip shape extending in one direction (for example, the direction indicated by arrow X in the figure). Region 231B(i) faces region 231A(i). (See Fig. 13B). Regions 231B(i) and 231B(i + 1) have a strip shape extending in one direction (for example, the direction indicated by arrow X in the figure). Region 231B(i) faces region 231A(i). (See Fig. 13B).

[0157] Region 231BS(i) is sandwiched between regions 231B(i) and 231B(i + 1). (See Fig. 13B). Region 231BS(i) is sandwiched between regions 231B(i) and 231B(i + 1). (See Fig. 13B).

[0158] 《Configuration example of connecting part 19》 Connecting part 19 is connected to display region 231A and display region 231B.

[0159] 《Configuration example of support 30A(i)》 Support 30A(i) overlaps region 231A(i). For example, a shape elongated in the direction indicated by arrow X can be used for support 30A(i). Support 30A(i) overlaps region 231A(i). For example, a shape elongated in the direction indicated by arrow X can be used for support 30A(i).

[0160] Support 30A(i) is less likely to bend than region 231AS(i). In other words, region 231AS(i) can be bent more easily than support 30A(i). Or, when gradually applying force, region 231AS(i) bends before support 30A(i). Support 30A(i) is less likely to bend than region 231AS(i). In other words, region 231AS(i) can be bent more easily than support 30A(i). Or, when gradually applying force, region 231AS(i) bends before support 30A(i). Support 30A(i) is less likely to bend than region 231AS(i). In other words, region 231AS(i) can be bent more easily than support 30A(i). Or, when gradually applying force, region 231AS(i) bends before support 30A(i).

[0161] 《Configuration example 1 of support 30A(i + 1)》 Support 30A(i + 1) overlaps region 231A(i + 1), and support 30A(i + 1) is less likely to bend than region 231AS(i). Support 30A(i + 1) overlaps region 231A(i + 1), and support 30A(i + 1) is less likely to bend than region 231AS(i).

[0162] Also, support 30A(i + 1) can rotate with respect to support 30A(i) about an axis extending in one direction (for example, the direction indicated by arrow X in the figure). (See Fig. 13B). For example Also, support 30A(i + 1) can rotate with respect to support 30A(i) about an axis extending in one direction (for example, the direction indicated by arrow X in the figure). (See Fig. 13B). For example For example, through the region 231AS(i), with the axis extending in the direction indicated by the arrow X as the center, the support 30 A(i + 1) can rotate with respect to the support 30A(i).

[0163] 《Configuration example of the support 30B(i)》 The support 30B(i) overlaps with the region 231B(i), and the support 30B(i) is less likely to bend than the region 231B S(i).

[0164] 《Configuration example of the support 30B(i + 1)》 The support 30B(i + 1) overlaps with the region 231B(i + 1), and the support 30B(i + 1) is less likely to bend than the region 231BS(i).

[0165] Also, the support 30B(i + 1) can rotate with respect to the support 30B(i) around an axis extending in one direction (for example, the direction indicated by the arrow X in the figure).

[0166] As a result, the first display region 231A and the second display region 231B can be arranged side by side. Or, the first display region 231A can be folded so as to face the second display region 231B. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided.

[0167] Note that this embodiment can be appropriately combined with other embodiments shown in this specification.

[0168] (Embodiment 3) In this embodiment, the configuration of the display panel according to one aspect of the present invention will be described with reference to FIGS. 15 to 18.

[0169] FIG. 15 is a diagram for explaining the configuration of the display panel according to one aspect of the present invention. FIG. 15A is one ​​​​​It is a top view of the display panel of the aspect, and FIG. 15B is a part of FIG. 15A. Also, FIG. 15C is a part of FIG. 15A, and FIG. 15D is a diagram for explaining a configuration different from that of FIG. 15C.

[0170] FIG. 16 is a diagram for explaining the configuration of the display panel of an aspect of the present invention. FIG. 16A is a cross-sectional view taken along the cutting lines X1-X2, X3-X4, X9-X10 and pixels in FIG. 15A, and FIG. 16 B is a circuit diagram for explaining the configuration of the pixel circuit 530(i,j).

[0171] FIG. 17 is a diagram for explaining the configuration of the display panel of an aspect of the present invention. FIG. 17A is a cross-sectional view of the pixel 702(i,j) in FIG. 15A, and FIG. 17B is a cross-sectional view for explaining a part of FIG. 17A is.

[0172] FIG. 18 is a diagram for explaining the configuration of the display panel of an aspect of the present invention. FIG. 18A is a cross-sectional view taken along the cutting lines X1-X2 and X3-X4 in FIG. 15A, and FIG. 18B is a cross-sectional view for explaining a part of FIG. 18A is.

[0173] In this specification, variables taking values of one or more integers may be used as signs. For example, (p) including a variable p taking a value of one or more integers may be used as part of a sign for specifying any one of up to p components. Also, for example, (m,n) including variables m and n taking values of one or more integers may be used as part of a sign for specifying any one of up to m×n components.

[0174] <Configuration Example 1 of Display Panel 700.> The display panel 700 described in this embodiment includes a display area 231 and a functional layer 520 (see FIGS. 15A and 16A).

[0175] 《Configuration Example 1 of Display Area 231.》 The display area 231 includes pixels 702(i,j).

[0176] 《Configuration Example of Pixel 702(i,j)》 The pixel 702(i,j) includes a display element 550(i,j) and a pixel circuit 530(i,j). and includes them.

[0177] 《Configuration Example 1 of Functional Layer 520.》 The functional layer 520 includes the pixel circuit 530(i,j). Also, the functional layer 520 includes an opening 59 1A.

[0178] The pixel circuit 530(i,j) is electrically connected to the display element 550(i,j) at the opening 591A (see FIG. 16A). (See FIG. 16A).

[0179] As a result, the pixel circuit 530(i,j) can be formed in the functional layer 520. Or the display element 550(i,j) can be driven using the pixel circuit 530(i,j). . As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. can be achieved.

[0180] 《Configuration Example 1 of Pixel Circuit 530(i,j).》 The pixel circuit 530(i,j) is electrically connected to a scanning line G1(i) and a signal line S1(j) . (See FIG. 16B).

[0181] For example, elements such as switches, transistors, diodes, resistive elements, inductors, or capacitors can be used for the pixel circuit 530(i,j). Specifically, a transistor can be used as a switch .

[0182] For example, when a plurality of transistors are used in the pixel circuit, the semiconductor used for one transistor In the step of forming the body film, for example, a semiconductor film used for the other transistor is formed. This is possible.

[0183] 《Configuration Example 2 of Pixel Circuit 530(i,j).》 The pixel circuit 530(i,j) includes a transistor M, a node N1(i,j), a switch SW2 1, a capacitor element C21, a capacitor element C22, and a switch SW22.

[0184] The transistor M includes a first electrode electrically connected to the display element 550(i,j) and a second electrode electrically connected to the conductive film ANO.

[0185] The node N1(i,j) is electrically connected to the gate electrode of the transistor M. Note that the display element 550(i,j) displays based on the potential.

[0186] The switch SW21 includes a first terminal electrically connected to the node N1(i,j) and a second terminal electrically connected to the wiring. For example, the signal line S1(j) can be used as the wiring. This is possible. Note that the switch SW21 has a function of switching between a conductive state and a non-conductive state based on, for example, a selection signal.

[0187] The capacitor element C21 includes a first electrode electrically connected to the node N1(i,j) and a second electrode electrically connected to the wiring. For example, the conductive film ANO can be used as the wiring. This is possible.

[0188] The capacitor element C22 includes a first electrode electrically connected to the node N1(i,j) and a second electrode electrically connected to the first terminal of the switch SW22.

[0189] Switch SW22 includes a first terminal that is electrically connected to a wiring. For example, signal line S 2(j) can be used for the wiring. Note that switch SW22 has a function of switching between a conductive state and a non-conductive state based on, for example, a selection signal.

[0190] Note that when switch SW21 is in a non-conductive state, switch SW22 can be changed from a non-conductive state to a conductive state. Also, when switch SW21 is in a non-conductive state, switch SW22 can be changed from a conductive state to a non-conductive state.

[0191] Thus, the potential of node N1(i,j) can be controlled using switches SW21 and SW22. Or, the potential of node N1(i,j) can be controlled using switch SW21, and the potential of node N1(i,j) can be changed using switch SW22. Or, the changing potential can be supplied to display element 550(i,j). Or, display can be performed based on the changing potential. Or, the display of display element 550(i ,j) can be changed. Or, the operation of display element 550(i,j) can be emphasized. Or, the response of display element 550(i,j) can be accelerated. As a result, a novel display panel excellent in convenience, usefulness, or reliability can be provided. .

[0192] 《Configuration Example 3 of Pixel Circuit 530(i,j).》 For example, a bottom-gate type transistor or a top-gate type transistor, etc. can be used for pixel circuit 530(i,j). Specifically, a transistor can be used as a switch.

[0193] ​​​​​​​《Configuration Example of Transistor》 The transistor M includes a semiconductor film 508, a conductive film 504, a conductive film 512A, and a conductive film 512 B (see FIG. 17B).

[0194] The semiconductor film 508 includes a region 508A electrically connected to the conductive film 512A and a region 508B electrically connected to the conductive film 512B. The semiconductor film 508 includes a region 508C between the region 508A and the region 508B.

[0195] The conductive film 504 includes a region overlapping with the region 508C, and the conductive film 504 has the function of a gate electrode .

[0196] The insulating film 506 includes a region sandwiched between the semiconductor film 508 and the conductive film 504. The insulating film 506 has the function of a gate insulating film.

[0197] The conductive film 512A has one of the functions of a source electrode or a drain electrode, and the conductive film 51 2B has the other of the functions of a source electrode or a drain electrode.

[0198] In addition, the conductive film 524 can be used for the transistor. The conductive film 524 includes a region sandwiching the semiconductor film 508 between the conductive film 50 4. The conductive film 524 has the function of a second gate electrode . The conductive film 524 can be electrically connected to the conductive film 504, for example.

[0199] Note that in the step of forming the semiconductor film used for the transistor of the pixel circuit, for example, the semiconductor film used for the transistor of the driving circuit can be formed.

[0200] 《Configuration Example 1 of Semiconductor Film 508.》 For example, a semiconductor containing an element of Group 14 can be used for the semiconductor film 508. Specifically A semiconductor containing silicon can be used for the semiconductor film 508.

[0201] [Hydrogenated amorphous silicon] For example, hydrogenated amorphous silicon can be used for the semiconductor film 508. Or, Microcrystalline silicon or the like can be used for the semiconductor film 508. Thereby, for example, compared with a display panel using poly silicon for the semiconductor film 508, a display panel with less display unevenness can be provided Or, it is easy to increase the size of the display panel.

[0202] [Polysilicon] For example, polysilicon can be used for the semiconductor film 508. Thereby, for example, compared with a transistor using hydrogenated amorphous silicon for the semiconductor film 508, the field-effect mobility of the transistor can be increased. Or, for example, compared with a transistor using hydrogenated amorphous silicon for the semiconductor film 508, the driving ability can be enhanced. Or, for example, compared with a transistor using hydrogenated amorphous silicon for the semiconductor film 508, the aperture ratio of the pixel can be improved.

[0203] Or, for example, compared with a transistor using hydrogenated amorphous silicon for the semiconductor film 508, the reliability of the transistor can be enhanced.

[0204] Or, the temperature required for manufacturing the transistor can be lowered compared with a transistor using single-crystalline silicon, for example. For the transistor of the drive circuit, the semiconductor film used can be formed in the same process as the semiconductor film used for the transistor of the pixel circuit. Or, on the same substrate as the substrate on which the pixel circuit is formed.

[0205] Or, the semiconductor film used for the transistor of the drive circuit can be formed in the same process as the semiconductor film used for the transistor of the pixel circuit. Or, the same substrate as the substrate on which the pixel circuit is formed. A driving circuit can be formed on the substrate. Alternatively, the number of components constituting the electronic device can be reduced can be achieved.

[0206] [Single-crystal silicon] For example, single-crystal silicon can be used for the semiconductor film 508. Thereby, for example, compared with a display panel using hydrogenated amorphous silicon for the semiconductor film 508, the fineness can be increased can be achieved. Alternatively, for example, compared with a display panel using polysilicon for the semiconductor film 508 , a display panel with less display unevenness can be provided. Alternatively, for example, a smart glass or a head-mounted display with less display unevenness can be provided.

[0207] 《Configuration Example 2 of Semiconductor Film 508.》 For example, a metal oxide can be used for the semiconductor film 508. Specifically, the materials described in Embodiment 1 2 can be used for the semiconductor film 508. Thereby, compared with a pixel circuit using a transistor with amorphous silicon for the semiconductor film, the time for which the pixel circuit can hold an image signal can be lengthened. Specifically, while suppressing the occurrence of flicker, a selection signal can be supplied at a frequency of less than 30 Hz, preferably less than 1 Hz, more preferably less than once per minute. As a result, the fatigue accumulated by the user of the information processing apparatus can be reduced. Also, the power consumption associated with driving can be reduced.

[0208] For example, a transistor using an oxide semiconductor can be used. Specifically, an oxide semiconductor containing indium or an oxide semiconductor containing indium, gallium, and zinc can be used for the semiconductor film.

[0209] ​ For example, a transistor with a leakage current in the off state smaller than that of a transistor using amorphous silicon for the semiconductor film can be used. Specifically, a transistor using an oxide semiconductor for the semiconductor film can be used for a switch or the like. As a result, the potential of the floating node can be held for a longer time than in a circuit using a transistor with amorphous silicon for the switch. For example, a 25-nm-thick film containing indium, gallium, and zinc can be used for the semiconductor film 508. For example, a conductive film formed by laminating a 10-nm-thick film containing tantalum and nitrogen and a 300-nm-thick film containing copper can be used for the conductive film 504. Note that the film containing copper has a region in which a film containing tantalum and nitrogen is sandwiched between the insulating film 506. For example, a laminated film formed by laminating a 400-nm-thick film containing silicon and nitrogen and a 200-nm-thick film containing silicon, oxygen, and nitrogen can be used for the insulating film 506. Note that the film containing silicon and nitrogen has a region in which a film containing silicon, oxygen, and nitrogen is sandwiched between the semiconductor film 508. For example, a conductive film formed by laminating a 50-nm-thick film containing tungsten, a 400-nm-thick film containing aluminum, and a 100-nm-thick film containing titanium in this order can be used for the conductive film 512A or the conductive film 512B. Note that the film containing tungsten has a region in contact with the semiconductor film 508.

[0210] For example, a 25-nm-thick film containing indium, gallium, and zinc can be used for the semiconductor film 508. For example, a conductive film formed by laminating a 10-nm-thick film containing tantalum and nitrogen and a 300-nm-thick film containing copper can be used for the conductive film 504. Note that the film containing copper has a region in which a film containing tantalum and nitrogen is sandwiched between the insulating film 506.

[0211] For example, a laminated film formed by laminating a 400-nm-thick film containing silicon and nitrogen and a 200-nm-thick film containing silicon, oxygen, and nitrogen can be used for the insulating film 506. Note that the film containing silicon and nitrogen has a region in which a film containing silicon, oxygen, and nitrogen is sandwiched between the semiconductor film 508. For example, a conductive film formed by laminating a 50-nm-thick film containing tungsten, a 400-nm-thick film containing aluminum, and a 100-nm-thick film containing titanium in this order can be used for the conductive film 512A or the conductive film 512B. Note that the film containing tungsten has a region in contact with the semiconductor film 508. For example, a 25-nm-thick film containing indium, gallium, and zinc can be used for the semiconductor film 508.

[0212] For example, a laminated film formed by laminating a 400-nm-thick film containing silicon and nitrogen and a 200-nm-thick film containing silicon, oxygen, and nitrogen can be used for the insulating film 506. Note that the film containing silicon and nitrogen has a region in which a film containing silicon, oxygen, and nitrogen is sandwiched between the semiconductor film 508. For example, a conductive film formed by laminating a 50-nm-thick film containing tungsten, a 400-nm-thick film containing aluminum, and a 100-nm-thick film containing titanium in this order can be used for the conductive film 512A or the conductive film 512B. Note that the film containing tungsten has a region in contact with the semiconductor film 508. For example, a 25-nm-thick film containing indium, gallium, and zinc can be used for the semiconductor film 508. For example, a laminated film formed by laminating a 400-nm-thick film containing silicon and nitrogen and a 200-nm-thick film containing silicon, oxygen, and nitrogen can be used for the insulating film 506. Note that the film containing silicon and nitrogen has a region in which a film containing silicon, oxygen, and nitrogen is sandwiched between the semiconductor film 508.

[0213] For example, a laminated film formed by laminating a 400-nm-thick film containing silicon and nitrogen and a 200-nm-thick film containing silicon, oxygen, and nitrogen can be used for the insulating film 506. Note that the film containing silicon and nitrogen has a region in which a film containing silicon, oxygen, and nitrogen is sandwiched between the semiconductor film 508. For example, a conductive film formed by laminating a 50-nm-thick film containing tungsten, a 400-nm-thick film containing aluminum, and a 100-nm-thick film containing titanium in this order can be used for the conductive film 512A or the conductive film 512B. Note that the film containing tungsten has a region in contact with the semiconductor film 508. For example, a laminated film formed by laminating a 400-nm-thick film containing silicon and nitrogen and a 200-nm-thick film containing silicon, oxygen, and nitrogen can be used for the insulating film 506. Note that the film containing silicon and nitrogen has a region in which a film containing silicon, oxygen, and nitrogen is sandwiched between the semiconductor film 508. For example, a conductive film formed by laminating a 50-nm-thick film containing tungsten, a 400-nm-thick film containing aluminum, and a 100-nm-thick film containing titanium in this order can be used for the conductive film 512A or the conductive film 512B. Note that the film containing tungsten has a region in contact with the semiconductor film 508.

[0214] By the way, for example, a bottom-gate transistor using amorphous silicon as a semiconductor The production line for bottom-gate transistors uses oxide semiconductors as the semiconductor. It can be easily modified into a production line. Also, for example, a top-gate type that uses polysilicon as a semiconductor The transistor production line is a top-gate transistor that uses oxide semiconductors as the semiconductor. Both modifications can be easily made to existing production lines, making effective use of existing production lines. It can be used.

[0215] This makes it possible to suppress flickering or reduce power consumption. Or, you can display fast-moving videos smoothly. Or, you can take pictures with rich gradations. As a result, a novel display that is convenient, useful, and reliable can be obtained. A display panel can be provided.

[0216] Configuration example 3 of semiconductor film 508 For example, compound semiconductors can be used as the semiconductors of transistors. A semiconductor containing arsenic can be used.

[0217] For example, organic semiconductors can be used as the semiconductor of transistors. Organic semiconductors including cesene or graphene can be used for the semiconductor film.

[0218] Example of a capacitance element configuration The capacitance element includes a first conductive film, another conductive film, and an insulating film. and another conductive film.

[0219] For example, the conductive film 504, the conductive film 512A, and the insulating film 506 can be used as a capacitor. Cut.

[0220] <<Configuration Example 2 of Functional Layer 520.>> Further, the functional layer 520 includes an insulating film 521, an insulating film 518, an insulating film 516, an insulating film 506, and an insulating film 501C, etc. (see FIGS. 17A and 17B).

[0221] The insulating film 521 includes a region sandwiched between the pixel circuit 530(i,j) and the display element 550(i,j).

[0222] The insulating film 518 includes a region sandwiched between the insulating film 521 and the insulating film 501C.

[0223] The insulating film 516 includes a region sandwiched between the insulating film 518 and the insulating film 501C.

[0224] The insulating film 506 includes a region sandwiched between the insulating film 516 and the insulating film 501C.

[0225] [Insulating Film 521] For example, an insulating inorganic material, an insulating organic material, or an insulating composite material containing an inorganic material and an organic material can be used for the insulating film 521.

[0226] Specifically, an inorganic oxide film, an inorganic nitride film, an inorganic oxynitride film, etc., or a laminated material formed by laminating a plurality of these selected therefrom can be used for the insulating film 521.

[0227] For example, a film including a silicon oxide film, a silicon nitride film, a silicon oxynitride film, an aluminum oxide film, etc., or a laminated material formed by laminating a plurality of these selected therefrom can be used for the insulating film 521. The silicon nitride film is a dense film and has an excellent function of suppressing the diffusion of impurities.

[0228] ​​​​​For example, polyester, polyolefin, polyamide, polyimide, polycarbonate, polysiloxane, acrylic resin, etc., or a laminate of a plurality of resins selected from these materials or a composite material can be used for the insulating film 521. Also, a material having photosensitivity may be used. Thereby, the insulating film 521 can flatten steps derived from various structures overlapping the insulating film 521.

[0229] Note that polyimide has excellent properties compared to other organic materials in terms of thermal stability, insulation, toughness, low dielectric constant, low thermal expansion rate, chemical resistance, etc. Thereby, polyimide can be particularly suitably used

[0230] for the insulating film 521 and the like. For example, a film formed using a photosensitive material can be used for the insulating film 521. Specifically, a film formed using a photosensitive polyimide or a photosensitive

[0231] [Insulating film 518] For example, the materials that can be used for the insulating film 521 can be used for

[0232] the insulating film 518. For example, a material having a function of suppressing the diffusion of oxygen, hydrogen, water, alkali metal, alkaline earth metal, etc. can be used for the insulating film 518. Specifically, a nitride insulating film can be used for the insulating film 518. For example, silicon nitride, silicon oxynitride, aluminum nitride, aluminum oxynitride, etc. can be used for the insulating film 518. Thereby, the diffusion

[0233] [Insulating film 516] For example, materials that can be used for the insulating film 521 can be used for the insulating film 516.

[0234] Specifically, a film with a manufacturing method different from that of the insulating film 518 can be used for the insulating film 516. 。

[0235] [Insulating film 506] For example, materials that can be used for the insulating film 521 can be used for the insulating film 506.

[0236] Specifically, a silicon oxide film, a silicon oxynitride film, a silicon nitride oxide film, a silicon nitride film, an aluminum oxide film, a hafnium oxide film, a yttrium oxide film, a zirconium oxide film , a gallium oxide film, a tantalum oxide film, a magnesium oxide film, a lanthanum oxide film, a cerium ium oxide film or a neodymium oxide film can be used for the insulating film 506.

[0237] [Insulating film 501D] The insulating film 501D includes a region sandwiched between the insulating film 501C and the insulating film 516.

[0238] For example, materials that can be used for the insulating film 506 can be used for the insulating film 501D. 。

[0239] [Insulating film 501C] For example, materials that can be used for the insulating film 521 can be used for the insulating film 501C. Specifically, materials containing silicon and oxygen can be used for the insulating film 501C. Thereby, diffusion of impurities into the pixel circuit or the display element can be suppressed.

[0240] 《Configuration example 3 of the functional layer 520.》 The functional layer 520 includes a conductive film, wiring, and terminals. Materials having conductivity are used for the wiring, electrodes, It can be used for terminals, conductive films, etc.

[0241] 《Wiring, etc.》 For example, inorganic conductive materials, organic conductive materials, metals, or conductive ceramics can be used for wiring, etc. It can be used for wiring, etc.

[0242] Specifically, metals selected from aluminum, gold, platinum, silver, copper, chromium, tantalum, titanium, molybdenum tungsten, nickel, iron, cobalt, palladium, or manganese can be used for wiring, etc. Or alloys containing the above-mentioned metal elements, etc. can be used for wiring, etc. In particular, an alloy of copper and manganese is suitable for microfabrication using the wet etching method.

[0243] Specifically, a two-layer structure in which a titanium film is laminated on an aluminum film, a two-layer structure in which a titanium film is laminated on a titanium nitride film, a two-layer structure in which a tungsten film is laminated on a titanium nitride film, a two-layer structure in which a tungsten film is laminated on a tantalum nitride film or a tungsten nitride film, a titanium film, and a three-layer structure in which an aluminum film is laminated on the titanium film and a titanium film is further formed thereon can be used for wiring, etc.

[0244] Specifically, conductive oxides such as indium oxide, indium tin oxide, indium zinc oxide, zinc oxide, zinc oxide added with gallium can be used for wiring, etc.

[0245] Specifically, a film containing graphene or graphite can be used for wiring, etc.

[0246] For example, a film containing graphene oxide is formed, and the film containing graphene oxide is reduced. As a method for reducing the graphene, a method for applying heat is used. A method using a reducing agent and the like can be mentioned.

[0247] For example, a film containing metal nanowires can be used for wiring. Nanowires including such a material can be used.

[0248] Specifically, a conductive polymer can be used for wiring and the like.

[0249] For example, the terminal 519B is electrically connected to the flexible printed circuit board FPC1. Specifically, the terminal 519B can be framed by using a conductive material CP. It can be electrically connected to a flexible printed circuit board FPC1 (see FIG. 18A).

[0250] <Configuration Example 2 of Display Panel 700> The display panel 700 also includes a substrate 510, a substrate 770, and a sealing material 705 (FIG. 1). 7A).

[0251] 《Base material 510, base material 770》 A material having optical transparency can be used for the substrate 510 or the substrate 770 .

[0252] For example, a flexible material can be used for the substrate 510 or the substrate 770. This makes it possible to provide a flexible display panel.

[0253] For example, a material having a thickness of 0.7 mm or less and 0.1 mm or more can be used. The material can be polished to a thickness of about 0.1 mm. This allows the weight to be reduced. It can be reduced.

[0254] Incidentally, glass substrates such as the 6th generation (1500 mm × 1850 mm), 7th generation (1870 mm × 220 0 mm), 8th generation (2200 mm × 2400 mm), 9th generation (2400 mm × 280 0 mm), and 10th generation (2950 mm × 3400 mm) can be used for the base material 510 or also for the base material 770. Thereby, a large-sized display device can be manufactured .

[0255] Composite materials such as organic materials, inorganic materials, or a combination of organic and inorganic materials can be used for the base material 510 or the base material 7 70.

[0256] For example, inorganic materials such as glass, ceramics, and metals can be used. Specifically, non-alkali glass, soda-lime glass, potassium glass, crystal glass, aluminosilicate glass , tempered glass, chemically strengthened glass, quartz, or sapphire, etc. can be used for the base material 510 or the base material 770. Alternatively, aluminosilicate glass, tempered glass, chemically strengthened glass or sapphire, etc. can be preferably used for the base material 510 or the base material 770 disposed on the side closer to the user of the display panel. Thereby, breakage or damage of the display panel during use can be prevented.

[0257] Specifically, inorganic oxide films, inorganic nitride films, or inorganic oxynitride films, etc. can be used . For example, silicon oxide films, silicon nitride films, silicon oxynitride films, aluminum oxide films etc. can be used. Stainless steel or aluminum, etc. can be used for the base material 510 or also for the base material 770.

[0258] For example, single-crystal semiconductor substrates, polycrystalline semiconductor substrates made of silicon or silicon carbide, silicon Compound semiconductor substrates such as indium germanium, SOI substrates, etc. can be used as the base material 510 or the base material 770. Thus, semiconductor elements can be formed on the base material 510 or the base material 770. This is possible.

[0259] For example, organic materials such as resins, resin films, or plastics can be used as the base material 510 or the base material 770. Specifically, polyester, polyolefin, polyamide (nylon, aramid, etc.), polyimide, polycarbonate, polyurethane, or acrylic resin, a resin containing an epoxy resin or a resin having a siloxane bond such as silicone, etc. can be used as the base material 510 or the base material 770. Materials containing resins can be used as the base material 510 or the base material 770. For example, resin films, resin plates, or laminated materials containing these materials can be used. This can reduce the weight. Or, for example, the frequency of occurrence of breakage or the like due to dropping can be reduced.

[0260] Specifically, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethersulfone (PES), cycloolefin polymer (COP), or cycloolefin copolymer (COC), etc. can be used as the base material 510 or the base material 770. This is possible.

[0261] For example, a composite material obtained by laminating a metal plate, a thin glass plate, or a film of an inorganic material, etc. with a resin film, etc. can be used as the base material 510 or the base material 770. For example, a composite material in which fibrous or particulate metal, glass, or inorganic material, etc. is dispersed in a resin can be used as the base material 510 or the base material 770. For example, a composite material in which fibrous or particulate resin or organic material, etc. is dispersed in an inorganic material can be used as the base material 510 or the base material 770. This is possible.​​​​​

[0262] In addition, a single-layer material or a material formed by laminating a plurality of layers can be used for the base material 510 or the base material 770. For example, a material with an insulating film or the like laminated thereon can be used. Specifically, a material in which one or a plurality of films selected from a silicon oxide layer, a silicon nitride layer, a silicon oxynitride layer, etc. are laminated can be used. Thereby, for example, the diffusion of impurities contained in the base material can be prevented. Or, the diffusion of impurities contained in the glass or resin can be prevented. Or, the diffusion of impurities permeating through the resin can be prevented.

[0263] In addition, paper or wood, etc. can be used for the base material 510 or the base material 770.

[0264] For example, a material having heat resistance sufficient to withstand the heat treatment during the manufacturing process can be used for the base material 510 or the base material 770. Specifically, a material having heat resistance to the heat applied during the manufacturing process of directly forming a transistor or a capacitor element, etc. can be used for the base material 510 or the base material 770.

[0265] For example, an insulating film, a transistor, or a capacitor element, etc. is formed on a process substrate having heat resistance to the heat applied during the manufacturing process, and the formed insulating film, transistor, or capacitor element, etc. is transferred to the base material 510 or the base material 770, for example. A method can be used. Thereby, for example, an insulating film, a transistor, or a capacitor element, etc. can be formed on a flexible substrate.

[0266] 《Sealing material 705》 The sealing material 705 includes a region sandwiched between the functional layer 520 and the base material 770, and has a function of bonding the functional layer 520 and the base material 770 (see FIG. 18A). ​​​​​​​​​​​

[0267] The sealing material 705 may be an inorganic material, an organic material, or a composite material of an inorganic material and an organic material. can be done.

[0268] For example, an organic material such as a heat-melting resin or a hardening resin may be used as the sealing material 705. can be done.

[0269] For example, reactive curing adhesives, photocuring adhesives, heat curing adhesives and / or anaerobic adhesives. An organic material such as a sealant can be used for the sealant 705 .

[0270] Specifically, epoxy resin, acrylic resin, silicone resin, phenolic resin, polyimide resin, etc. resin, imide resin, PVC (polyvinyl chloride) resin, PVB (polyvinyl butyrate) Adhesives containing Ethylene Vinyl Acetate (EVA) resin, etc. are used as sealing material 705. There can be.

[0271] <Configuration Example 3 of Display Panel 700> The display panel 700 includes a functional layer 720 (see FIG. 17A). has a structure KB or a functional film 770P, etc.

[0272] <Functional Layer 720> The functional layer 720 includes a colored film CF(j), a light-shielding film BM, and an insulating film 771.

[0273] 《Colored film CF(j)》 The colored film CF(j) is a region sandwiched between the substrate 770 and the display element 550(i,j). For example, a material that selectively transmits light of a predetermined color may be used for the colored film CF(j). Specifically, a material that transmits red light, green light, or blue light is used as the colored film CF (j) can be used.

[0274] "Insulating Film 771" Insulating Film 771 includes a region sandwiching a light-shielding film BM between it and a base material 770.

[0275] Insulating Film 771 includes a region sandwiching a colored film CF(j) between it and a base material 770.

[0276] Or, Insulating Film 771 includes a region sandwiched between a colored film CF(j) and a display element 550(i,j). As a result, unevenness caused by the thickness of the colored film CF(j) can be flattened. This can be achieved.

[0277] "Light-Shielding Film BM" The light-shielding film BM has an opening in a region overlapping with a pixel 702(i,j). For example, a dark-colored material can be used for the light-shielding film BM. Thereby, the contrast of the display can be improved. This can be achieved.

[0278] "Structure KB" The structure KB includes a region sandwiched between a functional layer 520 and a base material 770. Also, the structure KB has a function of providing a predetermined gap between the functional layer 520 and the base material 770.

[0279] "Functional Film 770P, etc." The functional film 770P includes a region overlapping with a display element 550(i,j).

[0280] For example, an anti-reflection film, a polarizing film, a retardation film, a light diffusion film, or a condenser film, etc. can be used for the functional film 770P.

[0281] For example, an anti-reflection film with a thickness of 1 μm or less can be used for the functional film 770P. Specifically, a dielectric is laminated in three or more layers, preferably five or more layers, more preferably fifteen or more layers. This film can be used as the functional film 770P. This makes it possible to reduce the reflectance to preferably 0.5% or less. can be suppressed to 0.08% or less.

[0282] For example, a circularly polarizing film can be used for the functional film 770P.

[0283] In addition, there are antistatic films that suppress the adhesion of dirt, water-repellent films that make it difficult for dirt to adhere, and Oil-repellent coating that makes it difficult for the surface to adhere, anti-reflection coating, non-glossy coating Anti-glare film, hard coat film that suppresses scratches caused by use, repairs scratches that do occur A self-repairing film that repairs damage to the functional film 770P can be used.

[0284] <Configuration Example 4 of Display Panel 700> The display panel 700 also includes an insulating film 528 and an insulating film 573 (see FIG. 17A). .

[0285] "Insulating Film 528" The insulating film 528 has a region sandwiched between the functional layer 520 and the substrate 770. has an opening in a region overlapping with display element 550(i,j) (see FIG. 17A).

[0286] For example, the material that can be used for the insulating film 521 can be used for the insulating film 528. Specifically, the insulating film may be a silicon oxide film, a film containing an acrylic resin, or a film containing polyimide. Can be used for 528.

[0287] "Insulating Film 573" The insulating film 573 has an area that sandwiches the display element 550(i, j) between itself and the functional layer 520 ( See Figure 17A).

[0288] For example, a single film or a laminated film formed by laminating a plurality of films can be used for the insulating film 573. . Specifically, an insulating film 573A that can be formed in a manner that is difficult to damage the display element 550(i,j), and a dense insulating film 573B with few defects, can be laminated and used as the insulating film 57 3. This can suppress the diffusion of impurities into the display element 550(i,j). Or, the reliability of the display element 550(i,j) can be enhanced. .

[0289] 《Configuration example of the display element 550(i,j).》 An element that controls the emission of light can be used as the display element 550(i,j). For example, a light-emitting element can be used as the display element 550(i,j).

[0290] Specifically, an organic electroluminescence element, an inorganic electroluminescence element, a light-emitting diode, or a QDLED (Quantum Dot LED), etc., can be used as the display element 5 50(i,j) (see Fig. 17A).

[0291] For example, a layer 553(j) containing a light-emitting material can be used as the display element 550(i,j). .

[0292] 《Configuration example 1 of the layer 553(j) containing a light-emitting material.》 For example, a strip-shaped laminated material that is long in the column direction along the signal line S2(j) and contains a light-emitting material can be used as the layer 553(j) containing a light-emitting material. .

[0293] Specifically, a strip-shaped laminated material containing a material that emits light with a hue different from that of the layer 553(j) containing a light-emitting material can be used adjacent to the layer 553(j) containing a light-emitting material. Thereby, for example, ... It is possible to make the hue of the light emitted by the element 550(i,j) different for each column.

[0294] For example, a material that emits blue light, a material that emits green light, or a material that emits red light can be used for the layer 553(j) containing the light-emitting material.

[0295] 《Configuration Example 2 of the Layer 553(j) Containing the Light-Emitting Material.》 For example, a laminated material laminated to emit white light can be used for the layer 553 (j) containing the light-emitting material.

[0296] Specifically, a plurality of materials that emit light with different hues can be used for the layer 553 (j) containing the light-emitting material.

[0297] For example, a layer containing a light-emitting material containing a fluorescent material that emits blue light, and a layer containing a material other than a fluorescent material that emits green and red light are laminated, and the laminated material can be used for the layer 553 (j) containing the light-emitting material. Alternatively, a layer containing a light-emitting material containing a fluorescent material that emits blue light, and a layer containing a material other than a fluorescent material that emits yellow light are laminated, and the laminated material can be used for the layer 553(j) containing the light-emitting material.

[0298] In addition, for example, a colored film CF(j) can be superimposed and used on the layer 553(j) containing the light-emitting material. Thereby, light of a predetermined hue can be extracted from white light. Also without separately forming the layer 553(j) containing the light-emitting material, pixels displaying different hues can be aligned.

[0299] 《Configuration Example 3 of the Layer 553(j) Containing the Light-Emitting Material.》 For example, a laminated material laminated to emit blue light or ultraviolet light can be used for a layer 553(j) containing a luminescent material. It can be used for the layer 553(j) containing .

[0300] Also, for example, a layer that converts blue light or ultraviolet light into light of another hue can be used by laminating it on the layer 553(j) containing the luminescent material. As a result, for example, blue light can be converted into light of a predetermined hue. Or, without separately forming the layer 553(j) containing the luminescent material, pixels displaying different hues can be aligned. It can be used for the layer 553(j) containing .

[0301] 《Configuration Example 4 of the Layer 553(j) Containing a Luminescent Material.》 For example, a light-emitting unit can be used for the layer 553(j) containing a luminescent material. The light-emitting unit has one region where electrons injected from one side recombine with holes injected from the other side. Also, the light-emitting unit contains a luminescent material, and the luminescent material emits the energy generated by the recombination of electrons and holes as light. It can be used for the layer 553(j) containing .

[0302] For example, a plurality of light-emitting units and an intermediate layer can be used for the layer 553(j) containing a luminescent material. The intermediate layer has a region sandwiched between two light-emitting units. The intermediate layer has a charge generation region, and the intermediate layer supplies holes to the light-emitting unit arranged on the cathode side and supplies electrons to the light-emitting unit arranged on the anode side. Note that a configuration including a plurality of light-emitting units and an intermediate layer is sometimes referred to as a tandem-type light-emitting element. It can be used for the layer 553(j) containing . It can be used for the layer 553(j) containing . It can be used for the layer 553(j) containing .

[0303] As a result, the current efficiency related to light emission can be increased. Or, at the same luminance, the current density flowing through the light-emitting element can be decreased. Or, the reliability of the light-emitting element can be increased. It can be used for the layer 553(j) containing . It can be used for the layer 553(j) containing .

[0304] For example, a light-emitting unit including a material that emits light of one hue can be overlapped with a light-emitting unit including a material that emits light of another hue and used for the layer 553(j) containing a light-emitting material. Or, a light-emitting unit including a material that emits light of one hue can be overlapped with a light-emitting unit including a material that emits light of the same hue and used for the layer 553(j) containing a light-emitting material. Specifically, two light-emitting units including a material that emits blue light can be overlapped and used.

[0305] By the way, for example, a high molecular compound (oligomer, dendrimer, polymer, etc.), a medium molecular compound (a compound in the intermediate region between low molecular and high molecular: molecular weight 400 or more and 4000 or less), etc. can be used for the layer 553(j) containing a light-emitting material.

[0306] 《Electrodes 551(i,j), Electrode 552》 For example, a material that can be used for wiring or the like can be used for the electrode 551(i,j) or the electrode 552. Specifically, a material having translucency for visible light can be used for the electrode 551(i, j) or the electrode 552.

[0307] For example, a conductive oxide or a conductive oxide containing indium, indium oxide, indium tin oxide, indium zinc oxide, zinc oxide, zinc oxide added with gallium, etc. can be used. Or, a metal film thin enough for light to pass through can be used. Or a material having translucency for visible light can be used.

[0308] For example, a metal film that transmits part of light and reflects the other part of light can be used for the electrode 551(i,j) or It can be used for the electrode 552. For example, a layer 553(j) containing a light-emitting material, etc. is used to adjust the distance between the electrode 551(i,j) and the electrode 552.

[0309] Thereby, a microresonator structure can be provided in the display element 550(i,j). Or , light of a predetermined wavelength can be extracted more efficiently than other light. Or, light with a narrow half value width of the spectrum can be extracted. Or, light of a vivid color can be extracted .

[0310] For example, a film that efficiently reflects light can be used for the electrode 551(i,j) or the electrode 552 . Specifically, a material containing silver and palladium, etc. or a material containing silver and copper, etc. can be used for the electrode 551(i,j) or the electrode 552.

[0311] Also, the electrode 551(i,j) is electrically connected to the pixel circuit 530(i,j) at the opening 591A (see Fig. 17A). The electrode 551(i,j) overlaps, for example, an opening formed in the insulating film 528, and the electrode 551(i,j) has the insulating film 528 at its periphery.

[0312]

[0313] Thereby, a short circuit between the electrode 551(i,j) and the electrode 552 can be prevented.

[0313] 《Configuration Example 2 of the Display Region 231.》 The display region 231 includes a plurality of pixels. For example, a plurality of pixels that display colors with different hues can be used for the display region 231.

[0314] Thereby, the colors displayed by the plurality of pixels can be subjected to additive color mixing or subtractive color mixing. Or, a color with a hue that cannot be displayed by an individual pixel can be displayed.

[0315] In the case of using a plurality of pixels that display colors with different hues for color mixing, each of these pixels can be rephrased as a sub-pixel. Also, a plurality of sub-pixels can be grouped together and rephrased as a pixel.

[0316] For example, the pixel 702(i,j) can be rephrased as a sub-pixel, and the pixel 702(i,j) , the pixel 702(i,j+1), and the pixel 702(i,j+2) can be grouped together and rephrased as the pixel 703 (i,k) (see Fig. 15C).

[0317] Also, for example, the pixel 702(i,j) can be rephrased as a sub-pixel, and the pixel 702(i ,j), the pixel 702(i,j+1), the pixel 702(i+1,j), and the pixel 702(i+ 1,j+1) can be grouped together and rephrased as the pixel 703(i,k) (see Figs. 15D and 15E).

[0318] Specifically, a sub-pixel that displays blue, a sub-pixel that displays green, and a sub-pixel that displays red can be grouped together and used for the pixel 703(i,k). Also, a sub-pixel that displays cyan, a sub-pixel that displays magenta, and a sub-pixel that displays yellow can be grouped together and used for the pixel 7 03(i,k).

[0319] Also, for example, a sub-pixel that displays white or the like can be added to the above group and used for a pixel .

[0320] 《Configuration Example 3 of Display Area 231.》 The display area 231 includes the pixel 702(i,j), the pixel 702(i,j+1), and the pixel 702 (i,j+2) (see Fig. 15C).

[0321] The pixel 702(i,j) displays blue with chromaticity x in the CIE1931 chromaticity coordinates being 0.120 or more and 0. 170 or less, and chromaticity y being 0.020 or more and less than 0.060.

[0322] The pixel 702(i,j+1) displays green with chromaticity x in the CIE1931 chromaticity coordinates being 0.130 or more and 0.250 or less, and chromaticity y being greater than 0.710 and 0.810 or less.

[0323] The pixel 702(i,j+2) displays red with chromaticity x in the CIE1931 chromaticity coordinates being greater than 0.680 and 0.720 or less, and chromaticity y being 0.260 or more and 0.320 or less.

[0324] Also, the pixel 702(i,j), the pixel 702(i,j+1), and the pixel 702(i,j+2 ) are provided such that the area ratio with respect to the color gamut of the BT.2020-2 standard in the CIE chromaticity diagram (x,y) is 80% or more, or the coverage ratio with respect to the color gamut is 75% or more. Preferably , it is provided such that the area ratio is 90% or more, or the coverage ratio is 85% or more.

[0325]

[0326]

[0327] Note that this embodiment can be appropriately combined with other embodiments shown in this specification .

[0328] (Embodiment 4) In this embodiment, the configuration of the display panel of one aspect of the present invention will be described with reference to FIG. 19 .

[0328] FIG. 19 is a block diagram for explaining the configuration of a display panel according to an aspect of the present invention.

[0329] <Configuration Example 1 of Display Panel 700.> The display panel 700 described in this embodiment has a display area 231 (see FIG. 19).

[0330] 《Configuration Example 1 of Display Area 231.》 The display area 231 includes a group of pixels 702(i, 1) to pixels 702(i, n), and another group of pixels 702(1, j) to pixels 702(m, j), a scanning line G1(i), and a signal line S1 (j) (see FIG. 19). Further, it has a scanning line G2(i) and a signal line S2(j). Here, i is an integer from 1 to m, j is an integer from 1 to n, and m and n are integers of 1 or more.

[0331] Although not shown, the display area 231 has a conductive film VCOM2 and a conductive film ANO. .

[0332] A group of pixels 702(i, 1) to pixels 702(i, n) are arranged in the row direction (the direction indicated by arrow R1 in the figure), and a group of pixels 702(i, 1) to pixels 702(i, n) includes the pixel 702 (i, j).

[0333] Another group of pixels 702(1, j) to pixels 702(m, j) are arranged in the column direction intersecting the row direction ( the direction indicated by arrow C1 in the figure), and another group of pixels 702(1, j) to pixels 70 2(m, j) includes the pixel 702(i, j).

[0334] The scanning line G1(i) is electrically connected to a group of pixels 702(i, 1) to pixels 702( i, n) arranged in the row direction.

[0335] The signal line S1(j) is electrically connected to another group of pixels 702(1,j) to 702(m,j) arranged in the column direction.

[0336] As a result, image information can be supplied to a plurality of pixels, and thus a novel display panel excellent in convenience, utility, or reliability can be provided.

[0337] <<Configuration Example 3 of Display Area 231.>> The display area 231 includes a plurality of pixels arranged in a matrix. For example, the display area 231 includes 7600 or more pixels in the row direction and 4300 or more pixels in the column direction. Specifically, it includes 7680 pixels in the row direction and 4320 pixels in the column direction.

[0338] As a result, a detailed image can be displayed, and thus a novel display panel excellent in convenience, utility, or reliability can be provided.

[0339] <<Configuration Example 2 of Display Panel 700.>> The display panel 700 described in this embodiment includes one or more driving circuits. For example, it can include a driving circuit GD and a driving circuit SD (see FIG. 19).

[0340] <<Driving Circuits GDA and GDB>> The driving circuits GDA and GDB can be used as the driving circuit GD. For example, the driving circuits GDA and GDB have a function of supplying a selection signal based on control information.

[0341] Specifically, based on the control information, it has a function of supplying a selection signal to one scanning line at a frequency of 30 Hz or more, preferably 60 Hz or more. As a result, a moving image can be smoothly displayed. ​​​ It is possible.

[0342] Alternatively, based on the control information, the frequency is set to less than 30 Hz, preferably less than 1 Hz, more preferably less than 1 Hz. It has a function to supply a selection signal to one scan line at a frequency of less than once per minute. The device can display a still image with the browser suppressed.

[0343] In the case of providing a plurality of driving circuits, for example, the frequency with which the driving circuit GDA supplies a selection signal and the driving The frequency at which the static circuit GDB supplies the selection signal can be made different. A moving image is displayed at a frequency higher than the frequency at which a selection signal is supplied to one area displaying a still image. A selection signal can be supplied to the other area, which reduces flicker in one area. This allows a still image to be displayed in one area and a moving image to be displayed smoothly in another area.

[0344] By the way, the frame frequency can be made variable. Or, for example, 1 Hz or more, 12 It is possible to display at a frame rate of 0 Hz or less. Or, the progressive method can be used. This makes it possible to display at a frame frequency of 120 Hz.

[0345] For example, a bottom gate transistor or a top gate transistor is driven. Specifically, the transistor MD can be used in the driving circuit GD. This can be done (see FIG. 18).

[0346] In addition, in the process of forming a semiconductor film used for a transistor of the pixel circuit 530(i, j), For example, a semiconductor film used for a transistor in the driver circuit GD can be formed.

[0347] <Drive circuit SD> The drive circuit SD has a function of generating an image signal based on the information V11 and a function of converting the image signal into a It has a function of supplying a signal to a pixel circuit electrically connected to a display element (see FIG. 19).

[0348] For example, various sequential circuits such as shift registers can be used for the drive circuit SD. .

[0349] For example, an integrated circuit formed on a silicon substrate can be used for the driver circuit SD.

[0350] For example, the COG (Chip on Glass) method or the COF (Chip on Fi The lm) method can be used to connect integrated circuits to terminals. can be used to connect the integrated circuit to the terminals.

[0351] Note that this embodiment mode can be appropriately combined with other embodiment modes described in this specification. .

[0352] (Embodiment 5) In this embodiment, a structure of a display device according to one embodiment of the present invention will be described with reference to FIG. Reveal.

[0353] 20A and 20B are diagrams illustrating a structure of a display device according to one embodiment of the present invention. 20B to 20D are block diagrams of the display device according to one embodiment of the present invention. FIG.

[0354] <Example of display device configuration> The display device described in this embodiment has a display panel 700 and a control unit 238 (FIG. 20 (see A).

[0355] Configuration example 1 of control unit 238 The control unit 238 is supplied with the image information VI and the control information CI. For example, a clock signal or a timing signal or the like can be used as the control information CI.

[0356] The control unit 238 generates information V11 based on the image information VI, and generates a control signal SP based on the control information CI. Further, the control unit 238 supplies the information V11 and the control signal SP. .

[0357] For example, the information V11 includes tones of 8 bits or more, preferably 12 bits or more. Also, for example, a clock signal or a start pulse of a shift register used in a drive circuit can be used as the control signal SP.

[0358] 《Configuration Example 2 of Control Unit 238.》 For example, the expansion circuit 234 and the image processing circuit 235 can be used in the control unit 238. .

[0359] 《Expansion Circuit 234》 The expansion circuit 234 has a function of expanding the image information VI supplied in a compressed state. The expansion circuit 234 includes a storage unit. The storage unit has a function of storing, for example, the expanded image information. .

[0360] 《Image Processing Circuit 235》 The image processing circuit 235 includes, for example, a storage area. The storage area has a function of storing, for example, the information included in the image information VI. .

[0361] The image processing circuit 235 has, for example, a function of correcting the image information VI based on a predetermined characteristic curve to generate information V11, and a function of supplying the information V11.

[0362] 《Configuration Example 1 of Display Panel.》 The display panel 700 is supplied with the information V11 and the control signal SP. For example, it can be used for the display panel 700 representing the drive circuit. Specifically, the display panel 700 described in Embodiment 3 or Embodiment 4 can be used.

[0363] 《Drive Circuit》 The drive circuit operates based on the control signal SP. By using the control signal SP, the operations of a plurality of drive circuits can be synchronized.

[0364] For example, the drive circuits GDA(1), GDA(2), GDB(1), and GDB(2) can be used for the display panel. Also, the drive circuits GDA(1), GDA(2), GDB(1), and GDB(2) are supplied with the control signal SP and have the function of supplying a selection signal.

[0365] For example, the drive circuits SDA(1), SDA(2), SDB(1), SDB(2), SDC(1), and SDC(1) can be used for the display panel. Also, the drive circuits SDA(1), SDA(2), SDB(1), SDB(2), SDC(1), and SDC(1) are supplied with the control signal SP and the information V11 and can supply an image signal.

[0366] 《Configuration Example of Pixel 702(i,j)》 The pixel 702(i,j) is displayed based on the information V11.

[0367] As a result, image information can be displayed using the display element. As a result, convenience, effectiveness A novel display device with excellent usability or reliability can be provided. Or, for example, a revision receiving image system (see FIG. 20B), a video monitor (see FIG. 20C), or a notebook book computer (see FIG. 20D) can be provided.

[0368] 《Configuration Example 2 of Display Panel.》 For example, the control circuit 233 can be used for the display panel 700. Specifically, the control circuit 233 formed on the rigid substrate can be used for the display panel 700. Also, the control circuit 233 formed on the rigid substrate can be electrically connected to the control unit 238 using a flexible printed circuit board.

[0369] 《Control Circuit 233》 The control circuit 233 has a function of generating and supplying a control signal SP. For example, a clock signal or a timing signal can be used as the control signal SP. Specifically, a timing controller can be used for the control circuit 233.

[0370] Note that this embodiment can be appropriately combined with other embodiments shown in this specification.

[0371] (Embodiment 6) In this embodiment, the configuration of the input / output device according to one aspect of the present invention will be described with reference to FIG. 21.

[0372] FIG. 21 is a block diagram for explaining the configuration of the input / output device according

[0373] <Configuration Example 1 of Input / Output Device.> The input / output device described in this embodiment has an input unit 240 and a display unit 230 (see FIG. 21).

[0374] "Display Unit 230" The display unit 230 includes a display panel. For example, the display panel 700 described in Embodiment 3 or Embodiment 4 can be used for the display unit 230. Note that a configuration having the input unit

[0375] "Configuration Example 1 of Input Unit 240." The input unit 240 includes a detection area 241. The input unit 240 has a function of detecting an object approaching the detection area 241.

[0376] The detection area 241 includes an area overlapping with the pixel 702(i,j).

[0377] As a result, while displaying image information using the display unit, it is possible to detect an object approaching the area overlapping with the display unit. Alternatively, position information can be input using a finger or the like brought close to the display unit as a pointer. Alternatively, the position information can be associated with the

[0378] image information displayed on the display unit. As a result, a novel input / output device excellent in convenience, usefulness, or reliability

[0379] can be provided. The detection area 241 has a group of detectors 802(g,1) to detector 802(g,q), and another group of detectors 802(1,h) to detector 802(p,h). Note that g is an integer of 1 or more and p or less,

[0380] A group of detectors 802(g,1) to 802(g,q) includes the detector 802(g,h) and is arranged in the row direction (the direction indicated by the arrow R2 in the figure). Note that the direction indicated by the arrow R2

[0381] may be the same as or different from the direction indicated by the arrow R1. (g,h) and is arranged in the column direction (the direction indicated by the arrow C2 in the figure) that intersects the row direction .

[0382] 《Detector》 The detector has a function of detecting a nearby pointer. For example, a finger or a stylus pen can be used as a pointer . For example, a metal piece or a coil can be used for a stylus pen .

[0383] Specifically, a capacitance proximity sensor, an electromagnetic induction proximity sensor, an optical proximity sensor, a resistive film proximity sensor, etc. can be used for the detector .

[0384] Also, detectors of multiple types can be used in combination. For example, a detector for detecting a finger and a detector for detecting a stylus pen can be used in combination .

[0385] Thereby, the type of the pointer can be discriminated. Or, different commands can be associated with the detection information based on the discriminated type of the pointer . Specifically, when it is discriminated that a finger is used for the pointer, the detection information can be associated with a gesture . Also , when it is discriminated that a stylus pen is used for the pointer, the detection information can be associated with a drawing process .

[0386] Specifically, a proximity sensor of a capacitance type, a pressure-sensitive type, or an optical type can be used to detect a finger. Or, a proximity sensor of an electromagnetic induction type or an optical type can be used to detect a stylus pen.

[0387] 《Configuration Example 2 of Input Unit 240.》 The input unit 240 includes an oscillation circuit OSC and a detection circuit DC (see FIG. 21).

[0388] The oscillation circuit OSC supplies a search signal to the detector 802 (g, h). For example, a rectangular wave, a sawtooth wave, a triangular wave, a sine wave, etc. can be used as the search signal.

[0389] The detector 802 (g, h) generates and supplies a detection signal that changes based on the distance to the pointer approaching the detector 802 (g, h) and the search signal.

[0390] The detection circuit DC supplies input information based on the detection signal.

[0391] Thereby, the distance from the approaching pointer to the detection area 241 can be detected. Or, the position where the pointer is closest within the detection area 241 can be detected.

[0392] Note that this embodiment can be appropriately combined with other embodiments shown in this specification.

[0393] (Embodiment 7) In this embodiment, the configuration of an information processing apparatus according to an aspect of the present invention will be described with reference to FIGS. 22 to 24 and FIGS. 29 to 41.

[0394] FIG. 22A is a block diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 22B ​​​​​​​FIG. 22C is a projection view for explaining an example of the appearance of the information processing apparatus.

[0395] FIG. 23 is a flowchart for explaining a program according to an aspect of the present invention. FIG. 23A is a flowchart for explaining the main process of the program according to an aspect of the present invention, and FIG. 23B is a flowchart for explaining the interrupt process.

[0396] FIG. 24 is a diagram for explaining a program according to an aspect of the present invention. FIG. 24A is a flowchart for explaining the interrupt process of the program according to an aspect of the present invention. Further, FIG. 24B is a schematic diagram for explaining the operation of the information processing apparatus, and FIG. 24C is a timing chart for explaining the operation of the information processing apparatus according to an aspect of the present invention.

[0397] FIG. 29 is a diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 29A is a block diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention, and FIG. 29B is a block diagram for explaining the configuration of the display unit shown in FIG. 29A. Further, FIG. 29C is a perspective view for explaining the appearance of an information processing apparatus according to an aspect of the present invention.

[0398] FIG. 30 is a diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 30A is a perspective view for explaining the state where the hinge of an information processing apparatus according to an aspect of the present invention is opened, and FIG. 30B is a perspective view for explaining the state where the display panel of the information processing apparatus shown in FIG. 30A is bent. Further, FIG. 3 0C is a perspective view for explaining the state where the hinge of the information processing apparatus shown in FIG. 30A is closed, and FIG. 3 0D is a perspective view of the information processing apparatus shown in FIG. 30C drawn from another angle.

[0399] FIG. 31 is a diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 31A is FIG. 30A is a perspective view for explaining a display unit and an input unit of the information processing apparatus shown in FIG. 31B is FIG. 31A is a cross-sectional view taken along the cutting plane XZ of the display unit and the input unit shown in FIG. 31C is FIG. 30 is a perspective view for explaining the display unit and the input unit of the display device in the bent state shown in FIG. 30B, FIG. 31 D is a perspective view for explaining the display unit and the input unit of the information processing apparatus shown in FIG. 30C.

[0400] FIG. 32 is a diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 32A is FIG. 30A is a perspective view for explaining the state of the hinge of the information processing apparatus shown in FIG. 32B is FIG. 32A is a diagram for explaining a part of the hinge shown in FIG. 32C is a diagram for explaining a bent state of a part of the hinge shown in FIG. 32B state.

[0401] FIG. 33 is a diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 33A is FIG. 30B is a perspective view for explaining the state of the hinge of the information processing apparatus shown in FIG. 33B is the information processing apparatus shown in FIG. 30C is a perspective view for explaining the state of the hinge of the information processing apparatus shown in FIG. 30C.

[0402] FIG. 34 is a diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 34A is an aspect of the present invention is a perspective view for explaining a state where the hinge of the information processing apparatus is opened, FIG. 34B is FIG. 34 is a perspective view for explaining a state where the display panel of the information processing apparatus shown in FIG. 34A is bent. Also, FIG. 3 4C is a perspective view for explaining a state where the hinge of the information processing apparatus shown in FIG. 34A is closed, FIG. 3 4D is a perspective view of the information processing apparatus shown in FIG. 34C drawn from another angle.

[0403] FIG. 35 is a diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 35A is FIG. 34C It is a perspective view for explaining the display unit of the information processing apparatus shown in FIG. 35B is a cross-sectional view taken along the cutting plane XZ of the display unit shown in FIG. 35A. Further, FIG. 35C is a schematic view for explaining the curve drawn by the display unit shown in FIG. 35B on the cutting plane XZ. Further, FIG. 35D is a view for explaining the display unit in a state different from the state of the display unit shown in FIG. 35C. It is a cross-sectional view taken along the cutting plane XZ. Also, FIG. 35C is a schematic view for explaining the curve drawn by the display unit shown in FIG. 35B on the cutting plane XZ. Further, FIG. 35D is a view for explaining the state of the display unit shown in FIG. 35C. It is a view for explaining the display unit in a different state.

[0404] FIG. 36 is a view for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 36A is a perspective view for explaining the state in which the hinge of the information processing apparatus according to an aspect of the present invention is opened, and FIG. 36B is a perspective view for explaining the state in which the display panel of the information processing apparatus shown in FIG. 36A is bent. It is a perspective view for explaining the state in which the hinge of the information processing apparatus according to an aspect of the present invention is opened, and FIG. 36B is a perspective view for explaining the state in which the display panel of the information processing apparatus shown in FIG. 36A is bent. It is a perspective view for explaining the state in which the display panel of the information processing apparatus shown in FIG. 36A is bent.

[0405] FIG. 37 is a view for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 37A is a perspective view for explaining the state in which the hinge of the information processing apparatus shown in FIG. 36A is closed, and FIG. 37B is a perspective view of the information processing apparatus shown in FIG. 36A drawn from another angle. It is a perspective view for explaining the state in which the hinge of the information processing apparatus shown in FIG. 36A is closed, and FIG. 37B is a perspective view of the information processing apparatus shown in FIG. 36A drawn from another angle. It is a perspective view of the information processing apparatus shown in FIG. 36A drawn from another angle.

[0406] FIG. 38 is a view for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 38A is a perspective view for explaining the display unit of the information processing apparatus shown in FIG. 37A, and FIG. 38B is a cross-sectional view taken along the cutting plane XZ of the display unit shown in FIG. 38A. Further, FIG. 38C is a schematic view for explaining the curve drawn by the display unit shown in FIG. 38B on the cutting plane XZ. Further, FIG. 38D is a view for explaining the display unit in a state different from the state of the display unit shown in FIG. 38C. It is a perspective view for explaining the display unit of the information processing apparatus shown in FIG. 37A, and FIG. 38B is a cross-sectional view taken along the cutting plane XZ of the display unit shown in FIG. 38A. It is a cross-sectional view taken along the cutting plane XZ of the display unit shown in FIG. 38A. Also, FIG. 38C is a schematic view for explaining the curve drawn by the display unit shown in FIG. 38B on the cutting plane XZ. It is a schematic view for explaining the curve drawn by the display unit shown in FIG. 38B on the cutting plane XZ. Further, FIG. 38D is a view for explaining the display unit in a state different from the state of the display unit shown in FIG. 38C. It is a view for explaining the display unit in a state different from the state of the display unit shown in FIG. 38C.

[0407] FIG. 39 is a view for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 39 is a perspective view for explaining the state of the hinge of the information processing apparatus shown in FIG. 35A. It is a perspective view for explaining the state of the hinge of the information processing apparatus shown in FIG. 35A.

[0408] FIG. 40 is a view for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 40 is a view of the information processing apparatus shown in FIG. 38A. It is a perspective view for explaining the state of the hinge of the information processing apparatus shown.

[0409] FIG. 41 is a diagram for explaining the configuration of an information processing apparatus according to an aspect of the present invention. FIG. 41A is a diagram for explaining a state in which a part of the hinge of the information processing apparatus shown in FIG. 39 is extended. Further, FIG. 41B is a diagram for explaining a state in which a part of the hinge shown in FIG. 39 is bent. FIG. 41B is a diagram for explaining a bent state of a part of the hinge shown in FIG. 39.

[0410] <Configuration Example 1 of Information Processing Apparatus.> The information processing apparatus described in the present embodiment has an arithmetic unit 210 and an input / output unit 220 (see FIG. 22A). Note that the input / output unit 220 is electrically connected to the arithmetic unit 210. Further, the information processing apparatus 200 can include a housing (see FIGS. 22B and 22C). See).

[0411] 《Configuration Example 1 of Arithmetic Unit 210.》 The arithmetic unit 210 is supplied with input information II or detection information DS. The arithmetic unit 210 generates control information CI and image information VI based on the input information II or the detection information DS, and supplies the control information CI and the image information VI.

[0412] The arithmetic unit 210 includes an arithmetic section 211 and a storage section 212. Further, the arithmetic unit 210 includes a transmission path 214 and an input / output interface 215.

[0413] The transmission path 214 is electrically connected to the arithmetic section 211, the storage section 212, and the input / output interface 215.

[0414] 《Arithmetic Section 211》 The arithmetic section 211 has a function of executing a program, for example.

[0415] 《Storage Section 212》​​​​​ The storage unit 212 has a function of storing, for example, a program executed by the arithmetic unit 211, initial information, setting information, or an image or the like.

[0416] Specifically, a memory using a hard disk, a flash memory, or a transistor including an oxide semiconductor or the like can be used.

[0417] 《Input / Output Interface 215, Transmission Path 214》 The input / output interface 215 includes terminals or wiring, and has a function of supplying information and being supplied with information. For example, it can be electrically connected to the transmission path 214. Also, it can be electrically connected to the input / output device 220.

[0418] The transmission path 214 includes wiring, and has a function of supplying information and being supplied with information. For example, it can be electrically connected to the input / output interface 215. Also, it can be electrically connected to the arithmetic unit 211, the storage unit 212, or the input / output interface 215.

[0419] 《Configuration Example of Input / Output Device 220》 The input / output device 220 supplies input information II and detection information DS. The input / output device 220 is supplied with control information CI and image information VI (see Fig. 22A).

[0420] For example, the input information II can use the scan code of a keyboard, position information, button operation information, voice information, or image information or the like. Or, for example, the detection information DS can use the illuminance information, posture information, acceleration information, azimuth information, pressure information, temperature information, or humidity information or the like of the environment in which the information processing apparatus 200 is used.

[0421] For example, signals for controlling the luminance for displaying the image information VI, signals for controlling the chroma, and signals for controlling the hue can be used for the control information CI. Or, signals for changing the display of a part of the image information VI can be used for the control information CI.

[0422] The input / output device 220 includes a display unit 230, an input unit 240, and a detection unit 250. For example , the input / output device described in Embodiment 6 can be used as the input / output device 220. Also, the input / output device 220 can include a communication unit 290.

[0423] 《Configuration example of the display unit 230》 The display unit 230 displays the image information VI based on the control information CI.

[0424] The display unit 230 includes a control unit 238, a driving circuit GD, a driving circuit SD, and a display panel 700 (see FIG. 20). For example, the display device described in Embodiment 5 can be used as the display unit 230.

[0425] 《Configuration example of the input unit 240》 The input unit 240 generates input information II. For example, the input unit 240 has a function of supplying position information P1 .

[0426] For example, a human interface or the like can be used as the input unit 240 (see FIG. 22A ). Specifically, a keyboard, a mouse, a touch sensor, a microphone, a camera, or the like can be used as the input unit 240.

[0427] Also, a touch sensor having a region overlapping the display unit 230 can be used. Note that an input / output device including the display unit 230 and a touch sensor having a region overlapping the display unit 230 is referred to as a touch input / output device. ​It can be called a touch panel or a touch screen.

[0428] For example, the user can use the finger touching the touch panel as a pointer to perform various gestures (such as taps, drags, swipes, pinch-ins, etc.).

[0429] For example, the arithmetic unit 210 analyzes information such as the position or trajectory of a finger touching the touch panel, and when the analysis result satisfies a predetermined condition, it can be assumed that a predetermined gesture is supplied. As a result, the user can supply a predetermined operation command associated with the predetermined gesture in advance using the gesture.

[0430] For example, the user can supply a "scroll command" to change the display position of the image information using a gesture of moving the finger touching the touch panel along the touch panel.

[0431] In addition, the user can supply a "drag command" to pull out and display the navigation panel NP at the end of the display area 231 using a gesture of moving the finger in contact with the end of the display area 231 (see FIG. 22C). Also, the user can supply a "leaf-through command" to display the index image IND, a part of another page, or a thumbnail image TN of another page in a predetermined order in a flip-through manner using a gesture of moving the position where the finger is strongly pressed. Or it can be supplied using the pressure of pressing the finger. Thereby, the pages of the e-book terminal can be turned like turning the pages of a paper book. Or, relying on the thumbnail image TN or the index image IND, a predetermined page can be searched for. ​​​​​​​​​​​​​

[0432] 《Configuration Example of Detection Unit 250》 The detection unit 250 generates detection information DS. For example, the detection unit 250 has a function of detecting the illuminance of the environment in which the information processing device 200 is used and a function of supplying illuminance information.

[0433] The detection unit 250 has a function of detecting the surrounding state and supplying detection information. Specifically, it can supply illuminance information, attitude information, acceleration information, azimuth information, pressure information, temperature information, humidity information, etc.

[0434] For example, a photodetector, an attitude detector, an acceleration sensor, an azimuth sensor, a GPS (Global Positioning System) signal receiving circuit, a pressure-sensitive switch, a pressure sensor, a temperature sensor, a humidity sensor, a camera, etc. can be used for the detection unit 250.

[0435] 《Communication Unit 290》 The communication unit 290 has a function of supplying information to a network and acquiring information from the network.

[0436] 《Housing》 Note that the housing has a function of housing the input / output device 220 or the arithmetic unit 210. Or, the housing has a function of supporting the display unit 230 or the arithmetic unit 210.

[0437] Thereby, control information can be generated based on the input information or the detection information. Also, image information can be displayed based on the input information or the detection information. Or, the information processing device can operate by grasping the intensity of light received by the housing of the information processing device in the environment where the information processing device is used. Or, the user of the information processing device can use the display method ​​​can be selected. As a result, a novel information processing device with excellent convenience, usability, or reliability can be provided. processing device can be provided.

[0438] Note that these configurations cannot be clearly separated, and one configuration may also serve as another configuration or include a part of another configuration. For example, a touch panel in which a touch sensor is overlaid on a display panel is both a display unit and an input unit. For example, a touch panel in which a touch sensor is overlaid on a display panel is both a display unit and an input unit. is both a display unit and an input unit.

[0439] 《Configuration Example 2 of Arithmetic Unit 210.》 The arithmetic unit 210 includes an artificial intelligence unit 213 (see FIG. 22A).

[0440] The artificial intelligence unit 213 is supplied with input information II or detection information DS, and the artificial intelligence unit 213 infers control information CI based on the input information II or detection information DS. Further, the artificial intelligence unit 213 supplies the control information CI. Based on the input information II or the detection information DS, the artificial intelligence unit 213 infers the control information CI. Further, the artificial intelligence unit 213 supplies the control information CI. 213 supplies the control information CI.

[0441] As a result, control information CI that is displayed so as to be felt suitable can be generated. Or, it can be displayed so as to be felt suitable. Or, control information CI that is displayed so as to be felt comfortable can be generated. Or, it can be displayed so as to be felt comfortable. As a result, a novel information processing device with excellent convenience, usability, or reliability can be provided. Or, it can be displayed so as to be felt suitable. Or, control information CI that is displayed so as to be felt comfortable can be generated. Or, it can be displayed so as to be felt comfortable. As a result, a novel information processing device with excellent convenience, usability, or reliability can be provided. Or, control information CI that is displayed so as to be felt comfortable can be generated. Or, it can be displayed so as to be felt comfortable. As a result, a novel information processing device with excellent convenience, usability, or reliability can be provided. Or, it can be displayed so as to be felt comfortable. As a result, a novel information processing device with excellent convenience, usability, or reliability can be provided. As a result, a novel information processing device with excellent convenience, usability, or reliability can be provided.

[0442] [Natural Language Processing for Input Information II] Specifically, the artificial intelligence unit 213 can perform natural language processing on the input information II and extract one feature from the entire input information II. For example, the artificial intelligence unit 213 can infer and characterize emotions or the like included in the input information II. Further, it is empirically suitable for the feature. For example, the artificial intelligence unit 213 can infer and characterize emotions or the like included in the input information II. Further, it is empirically suitable for the feature. For example, the artificial intelligence unit 213 can infer and characterize emotions or the like included in the input information II. Further, it is empirically suitable for the feature. It is possible to infer colors, patterns, fonts, etc. that can be felt. Also, the artificial intelligence unit 213 can generate information specifying the color, pattern, or font of characters and information specifying the color or pattern of the background, and can be used for the control information CI.

[0443] Specifically, the artificial intelligence unit 213 can perform natural language processing on the input information II and extract some of the words included in the input information II. For example, the artificial intelligence unit 213 can extract expressions including grammatical errors, factual misidentifications, or emotions. Also, the artificial intelligence unit 213 can generate control information CI for displaying the extracted part in a color, pattern, or font different from the other part, and can be used for the control information CI.

[0444] [Image processing for input information II] Specifically, the artificial intelligence unit 213 can perform image processing on the input information II and extract one feature from the input information II. For example, the artificial intelligence unit 213 can infer the era in which the input information II was taken, indoor or outdoor, day or night, etc., and use it as a feature. Also, it can infer a color tone that is empirically felt to be suitable for the feature and generate control information CI for using the color tone for display. Specifically, information specifying the color used for the expression of shading (e.g., full color, black and white, or sepia) can be used for the control information CI.

[0445] Specifically, the artificial intelligence unit 213 can perform image processing on the input information II and extract some of the images included in the input information II. For example, it can generate control information CI for displaying a boundary between a part of the extracted image and another part. Specifically, it can generate control information CI for displaying a rectangle enclosing a part of the extracted image. ​​​​​​​​​​​​​

[0446] [Inference Using Detection Information DS] Specifically, the artificial intelligence unit 213 can generate an inference RI using the detection information DS. Alternatively, based on the inference RI, control information CI can be generated so that the user of the information processing apparatus 200 feels comfortable.

[0447] Specifically, based on the illuminance of the environment, etc., the artificial intelligence unit 213 can generate control information CI for adjusting the display brightness so that the display brightness is felt to be comfortable. Or, the artificial intelligence unit 213 can generate control information CI for adjusting the volume based on the noise of the environment, etc., so that the volume is felt to be comfortable.

[0448] Note that a clock signal or a timing signal supplied to the control unit 238 provided in the display unit 230 can be used as the control information CI. Or, a clock signal or a timing signal supplied to the control unit provided in the input unit 240 can be used as the control information CI.

[0449] [Configuration Example 2 of Information Processing Apparatus.] Another configuration of the information processing apparatus according to an aspect of the present invention will be described with reference to FIGS. 23A and 23B.

[0450] [Program] The program according to an aspect of the present invention has the following steps (see FIG. 23A).

[0451] [First Step] In the first step, initialize the settings (see FIG. 23A (S1)).

[0452] For example, predetermined image information to be displayed at startup, a predetermined mode for displaying the image information, ​​​​​and information for specifying a predetermined display method for displaying the image information, from the storage unit 212. Specifically, one still image or other moving image information may be used as the predetermined image information. Also, the first mode or the second mode can be used for a given mode.

[0453] [Second step] In the second step, interrupt processing is permitted (see FIG. 23A (S2)). A processor that is enabled to process an interrupt can perform the interrupt process in parallel with the main process. The arithmetic unit that has returned from interrupt processing to the main processing passes the results obtained from the interrupt processing to the main processing. This can be reflected in the processing.

[0454] When the counter value is the initial value, the arithmetic unit is caused to perform an interrupt process. When returning from the program, the counter may be set to a value other than the initial value. After starting, you can always have the interrupt process.

[0455] [Third step] In a third step, a predetermined The image information is displayed using the mode or a predetermined display method (see FIG. 23A (S3)). The predetermined mode specifies a mode in which information is displayed, and the predetermined display method displays image information. Also, for example, image information VI can be used to display information. .

[0456] For example, one way of displaying the image information VI may be associated with a first mode. Alternatively, other methods of displaying the image information VI can be associated with the second mode. Accordingly, a display method can be selected based on the selected mode.

[0457] 《First Mode》 Specifically, a method of supplying a selection signal to one scanning line at a frequency of 30 Hz or more, preferably 60 Hz or more, and performing display based on the selection signal can be associated with the first mode. For example, when the selection signal is supplied at a frequency of 30 Hz or more, preferably 60 Hz or more, the movement of a moving image can be smoothly displayed.

[0458] For example, when the selection signal is supplied at a frequency of 30 Hz or more, preferably 60 Hz or more, an image that smoothly follows the operation of the user can be displayed on the information processing apparatus 200 during the user's operation. can be shown.

[0459] For example, when the image is updated at a frequency of 30 Hz or more, preferably 60 Hz or more, an image that changes so as to smoothly follow the operation of the user can be displayed on the information processing apparatus 200 during the user's operation. can be shown. For example, when the image is updated at a frequency of 30 Hz or more, preferably 60 Hz or more, an image that changes so as to smoothly follow the operation of the user can be displayed on the information processing apparatus 200 during the user's operation.

[0460] 《Second Mode》 Specifically, a method of supplying a selection signal to one scanning line at a frequency of less than 30 Hz, preferably less than 1 Hz, more preferably less than once per minute, and performing display based on the selection signal can be associated with the second mode. For example, when the selection signal is supplied at a frequency of less than 30 Hz, preferably less than 1 Hz, more preferably less than once per minute, a display with suppressed flicker or flickering can be performed. Also, power consumption can be reduced.

[0461] For example, when the information processing apparatus 200 is used as a clock, the display can be updated at a frequency of once per second or once per minute. For example, when the selection signal is supplied at a frequency of less than 30 Hz, preferably less than 1 Hz, more preferably less than once per minute, a display with suppressed flicker or flickering can be performed. Also, power consumption can be reduced.

[0462] For example, when the information processing apparatus 200 is used as a clock, the display can be updated at a frequency of once per second or once per minute. For example, when the information processing apparatus 200 is used as a clock, the display can be updated at a frequency of once per second or once per minute.

[0463] By the way, for example, when a light-emitting element is used as a display element, the light-emitting element is caused to emit light in a pulsed manner. , image information can be displayed. Specifically, the organic EL element is caused to emit light in a pulsed manner and , its afterglow can be used for display. Since the organic EL element has excellent frequency characteristics , the time for driving the light-emitting element may be shortened, and the power consumption may be reduced. Also , since heat generation is suppressed, the deterioration of the light-emitting element may be reduced.

[0464] [Fourth Step] In the fourth step, if an end command is supplied (Yes), proceed to the fifth step , and if no end command is supplied (No), select to proceed to the third step (see Fig. 23A (S4)).

[0465] For example, the end command supplied in the interrupt process may be used for the determination.

[0466] [Fifth Step] In the fifth step, end (see Fig. 23A (S5)).

[0467] 《Interrupt Process》 The interrupt process includes the following sixth step to eighth step (see Fig. 23B).

[0468] [Sixth Step] In the sixth step, for example, using the detection unit 250, detect the illuminance of the environment in which the information processing apparatus 200 is used (see Fig. 23B (S6)). Note that instead of the illuminance of the environment, the color temperature or chromaticity of the ambient light may be detected.

[0469] [Seventh Step] In the seventh step, determine the display method based on the detected illuminance information (see Fig. 23B ( S7)). For example, determine so that the brightness of the display is not too dark or not too bright.

[0470] In addition, when the color temperature and chromaticity of the ambient light are detected in the sixth step, the color tone of the display may be adjusted.

[0471] [Eighth step] In the eighth step, the interrupt process is terminated (see Fig. 23B (S8)).

[0472] <Configuration example 3 of the information processing apparatus.> Another configuration of the information processing apparatus according to an aspect of the present invention will be described with reference to Fig. 24.

[0473] Fig. 24A is a flowchart for explaining a program according to an aspect of the present invention. Fig. 24A is a flowchart for explaining an interrupt process different from the interrupt process shown in Fig. 23B .

[0474] Note that the configuration example 3 of the information processing apparatus has a step of changing the mode based on a supplied predetermined event in the interrupt process, which is different from the interrupt pro cess described with reference to Fig. 23B. Here, different parts will be described in detail, and the above description will be applied to parts where the same configuration can be used.

[0475] 《Interrupt process》 The interrupt process includes the following sixth to eighth steps (see Fig. 24A).

[0476] [Sixth step] In the sixth step, when a predetermined event is supplied (Yes), the process proceeds to the seventh step , and when a predetermined event is not supplied (No), the process proceeds to the eighth step ( see Fig. 24A (U6)). For example, whether a predetermined event is supplied within a predetermined period It can be used for the component. Specifically, it is preferably 5 seconds or less, 1 second or less, or 0.5 seconds or less and can be a period of 0.1 second or less and longer than 0 seconds as a predetermined period.

[0477] [The 7th step] In the 7th step, change the mode (see FIG. 24A (U7)). Specifically, if the first mode is selected, select the second mode, and if the second mode is selected select the first mode.

[0478] For example, the display mode can be changed for a partial area of the display unit 230. Specifically the display mode can be changed for the area to which one driving circuit of the display unit 230 including the driving circuits GDA, GDB, and GDC supplies a selection signal ( see FIG. 24B).

[0479] For example, when a predetermined event is supplied to the input unit 240 in an area overlapping the area to which the driving circuit GDB supplies a selection signal, the display mode of the area to which the driving circuit GDB supplies a selection signal can be changed (see FIGS. 24B and 24C). Specifically, in response to a "tap" event supplied to the touch panel using a finger or the like, the frequency of the selection signal supplied by the driving circuit GDB can be changed.

[0480] The signal GCLK is a clock signal for controlling the operation of the driving circuit GDB, and the signals PWC1 and PWC2 are pulse width control signals for controlling the operation of the driving circuit GDB. The driving circuit GDB supplies a selection signal to the scanning lines G2(m + 1) to G2(2m) based on the signal GCLK, the signals PWC1 and PWC2, etc.

[0481] ​​​ As a result, for example, without the drive circuits GDA and GDC supplying a selection signal, the drive circuit GDB can supply a selection signal. Or, without changing the display of the area where the drive circuits GDA and GDC supply a selection signal, the display of the area where the drive circuit GDB supplies a selection signal can be updated. Or, the power consumption of the drive circuit can be suppressed.

[0482] [Step 8] In the eighth step, the interrupt process is terminated (see FIG. 24A (U8)). Note that the interrupt process may be repeatedly executed during the period when the main process is being executed.

[0483] 《Predetermined Event》 For example, events such as "click" and "drag" supplied using a pointing device such as a mouse, or events such as "tap", "drag ", or "swipe" supplied to the touch panel using a finger or the like as a pointer can be used.

[0484] Also, for example, the arguments of commands associated with a predetermined event can be given using the position of the slider pointed to by the pointer, the speed of the swipe, the speed of the drag, etc.

[0485] For example, the information detected by the detection unit 250 can be compared with a preset threshold value, and the comparison result can be used as an event.

[0486] Specifically, a pressure sensor that contacts a button or the like arranged so as to be pushed into the housing can be used as the detection unit 250.

[0487] 《Commands Associated with a Predetermined Event》 ​​​​​For example, an end command can be associated with a predetermined event.

[0488] For example, a "page turning command" for switching the display from one piece of displayed image information to another piece of image information can be associated with a predetermined event. Incidentally, arguments for determining, such as the speed at which the page is turned when executing the "page turning command", can be provided using a predetermined event.

[0489] For example, a "scroll command" for moving the display position of a displayed part of one piece of image information and displaying another part that is continuous with the part can be associated with a predetermined event. Incidentally, arguments for determining, such as the speed at which the display is moved when executing the "scroll command", can be provided using a predetermined event.

[0490] For example, a command for setting a display method or a command for generating image information can be associated with a predetermined event. Incidentally, an argument for determining the brightness of the generated image can be associated with a predetermined event. Also, the argument for determining the brightness of the generated image may be determined based on the brightness of the environment detected by the detection unit 250.

[0491] For example, a command for acquiring information distributed using a push-type service using the communication unit 290 can be associated with a predetermined event.

[0492] Incidentally, the presence or absence of the qualification to acquire information may be determined using the position information detected by the detection unit 250. Specifically, when in a predetermined classroom, school, conference room, company, building, or other internal area or region, it may be determined that there is a qualification to acquire information. Thereby, for example, in a school or ​​​​​​​​​​​​It can receive teaching materials distributed in classrooms of universities and the like and use the information processing apparatus 200 as a textbook or the like. Or, it can receive materials distributed in conference rooms of companies and the like and use them as conference materials.

[0493] <Configuration Example 4 of Information Processing Apparatus> The information processing apparatus 200 described in this embodiment includes a display unit 230 and an input unit 240 (see Fig. 29A).

[0494] <<Configuration Example of Display Unit>> The display unit includes surfaces 231D(1), 231D(2), 231D(3) and surface 231D( 4) (see Figs. 30A and 30C).

[0495] Surface 231D(3) includes a region sandwiched between surfaces 231D(1) and 231D(2) and surface 231D(3) can be bent (see Figs. 30A and 30B). For example, a display panel provided with a hinge 20 can be used for the display unit (see Figs. 32A and 33 ). Specifically, a hinge 20(i) including links 11(i), 11(i + 1), hooks 12(i), hooks 12(i + 1), and a joint 13A(i) can be used.

[0496] For example, a set of materials selected to attract each other can be used for links 11(i) and link 11(i + 1) (see Figs. 32B and 32C). Specifically, magnets and ferromagnetic materials can be used. Or, snap fits or surface fasteners can be used. Thereby, link 11(i + 1) in contact with link 11(i) can be made difficult to be detached from link 11(i). Or, link 11(i) and the state where the link 11(i + 1) is in contact can be stably maintained. Or, the surface 23 A predetermined shape configured using 1D(1), surface 231D(2), and surface 231D(3) can be stably maintained. For example, using surface 231D(1), surface 231D(2), and surface 231 D(3), a continuous single plane can be formed. Or, using surface 231D( 1), surface 231D(2), and surface 231D(3), a continuous single curved surface can be formed . Or, using surface 231D(1), surface 231D(2), and surface 231D(3) , a surface without "sagging" or wrinkles can be formed.

[0497] Surface 231D(1) displays in the first direction D(1), and surface 231D(2) displays in the second direction D(2).

[0498] The second direction D(2) is opposite to the first direction D(1) by bending the surface 231D (see FIGS. 30B and 30C). (See FIGS. 30B and 30C).

[0499] Surface 231D(4) displays in the third direction D(3), and the third direction D(3) is opposite to the second direction D(2) (see FIG. 30C). In other words, surface 231D(4) is arranged so as to be back-to-back with surface 2 31D(3).

[0500] <<Configuration Example of Input Unit 240>> The input unit 240 includes a detection area 241D(1), a detection area 241D(2), a detection area 241D( 3), and a detection area 241D(4) (see FIG. 31B). For example, a touch panel can be used for the input unit 240 and the display unit. Specifically, a capacitive touch panel or an optical touch panel can be used for the input unit 240. For example, the detection area ... A pointer approaching the area 241D(1) to the detection area 241D(4) may be photographed using an optical touch panel or an image sensor to recognize the user's gesture. Also it may execute a program using the recognized gesture as an event.

[0501] The detection area 241D(1) has a function of detecting what approaches the surface 231D(1), and the detection area 241D(2) has a function of detecting what approaches the surface 231D(2), and the detection area 241D(3) has a function of detecting what approaches the surface 231D(3). Also, the detection area 241D(4) has a function of detecting what approaches the surface 231D(4).

[0502] As a result, the surface 231D(3) can be bent so that the surfaces 231D(1) and 231D(2) face each other. Or, the display unit can be folded so that the surfaces 231D(1) and 231D(2) face each other . Or, when the display unit is folded with the surfaces 231D(1) and 231D(2) on the inside, the display on the surface 231D(4) can be visually recognized. Or it can detect what approaches the surfaces 231D(1) to 231D(4). Or it can input position information using a finger or the like brought close to the display unit as a pointer. Also it can associate the position information with the image information displayed on the display unit. As a result, a novel information processing apparatus excellent in convenience , usability, or reliability can be provided. Also, the information processing apparatus 200 described in the present embodiment has a detection unit 250 and an arithmetic unit 210 (see FIG. 29A).

[0503] <Configuration example 5 of the information processing apparatus.>

[0504] ​​ <<Configuration Example 1 of Detection Unit 250.>> The detection unit 250 supplies a detection signal based on the bent state of the surface 231D(3). For example , the state of the surface 231D(3) can be detected by using an acceleration sensor or a pressure sensor .

[0505] <<Configuration Example 1 of Arithmetic Unit 210.>> The arithmetic unit 210 controls the display of the surfaces 231D(1), 231D(2), and surface 231D(3) based on the detection signal

[0506] Thereby, for example, when the surfaces 231D(1) and 231D(2) face each other, the display of the surfaces 231D (1) to 231D(3) can be stopped. Or the power consumption can be reduced . As a result, a novel information processing device excellent in convenience, usefulness, or reliability can be provided

[0507] <<Configuration Example 2 of Detection Unit 250.>> The detection unit 250 includes a photoelectric conversion element 250PD, and the photoelectric conversion element 250PD detects the amount of light incident from the second direction D (2). Note that the amount of this light changes as the surface 231D(1) approaches (see FIGS. 30B to 30C).

[0508] Thereby, for example, the state where the surface 231D(1) faces the surface 231D(2) can be detected . Or, in the state where the surface 231D(1) faces the surface 231D(2), the surfaces 231D(1) to 231D(3) can be set to a non-display state. Or it can be displayed on the surface 231D(4). As a result, a novel information processing device excellent in convenience, usefulness, or reliability can be provided

[0509] ​《Configuration Example 3 of Detection Unit 250.》 The detection unit 250 includes an image sensor (see Fig. 30D). For example, the image sensor can be used for the camera 250C.

[0510] The image sensor captures images in the fourth direction D(4), and the fourth direction D(4) is opposite to the first direction D(1 ).

[0511] As a result, for example, in a state where the surfaces 231D(1) and 231D(2) face each other, the video captured by the image sensor can be displayed on the surface 231D(4). Alternatively, with the hinge open, the video captured by the image sensor can be displayed on the surfaces 231D(1) to 231D(3 ). Alternatively, with the hinge open, the video captured by the image sensor can also be displayed on the surface 231D(4). As a result, a novel information processing device with excellent convenience, usefulness, or reliability can be provided.

[0512] <Configuration Example 6 of Information Processing Device.> The information processing device described in this embodiment has a display unit 230, and the display unit 230 includes a display pa nel 700 (see Figs. 29A and 29B). Also, the display unit 230 includes a display panel 700B.

[0513] 《Configuration Example 1 of Display Panel 700.》 The display panel 700 includes the surfaces 231D(1), 231D(2), and 231D(3) (see Fig. 34A). Also, the display panel 700B includes the surface 231D(4) (see Fig. 3 4C).

[0514] The surface 231D(3) is sandwiched between the surfaces 231D(1) and 231D(2), and the surface 231 D(3) can be bent about an axis extending in one direction (see FIGS. 34B and 34 C). For example, the surface 231D(3) can be bent about the axis Y1. Specifically a display panel having a hinge 20 can be used for the display unit 230 (see FIG. 39) . Specifically, the hinge 20(i) including the link 11(i), the link 11(i + 1), the hook 12(i), the hook 1 2(i + 1), and the joint 13A(i) can be used . The extended state of the hinge 20(i) is shown in FIG. 41A, and the bent state of the hinge 20(i) is shown in FIG. 41B .

[0515] As the surface 231D(3) bends, it draws a curve in a plane transverse to the axis, and the curve has an inflection point (see FIGS. 35A to 35C). For example, the surface 231D(3) draws a curve in the plane XZ transverse to the axis Y1 (see FIG. 35C). The curve includes an arc centered on the axis Y1, an arc centered on the axis Y2 , and an arc centered on the axis Y3. Also, the arc centered on the axis Y2 is connected to the arc centered on the axis Y1 at the inflection point IP2, and the arc centered on the axis Y3 is connected to the arc centered on the axis Y1 at the inflection point IP3

[0516] Note that an axis parallel to the axis Y1 can be used as the axis Y2. Or, an axis parallel to the axis Y1 can be used as the axis Y3. Also, as the surface 231D(3) bends, instead of a curve, a polygon may be drawn in the plane XZ transverse to the axis Y1 . For example, a polygon having 4 or more vertices, preferably a polygon having 6 or more vertices, may be drawn. Or, an interior angle may be 120° or more and less than 180°, preferably 150° or more and less than 180°, more preferably 1 60° or more and less than 180°

[0517] <Configuration Example 2 of Display Panel 700.> Also, the surface 231D(3) of the display panel 700 has a radius of curvature R1 as it bends (see Fig. 35C). When the radius of curvature of the surface 231D(3) changes at the bent portion, the shortest radius of curvature at the bent portion can be set as the radius of curvature R1.

[0518] The surface 231D(2) has a region along the surface 231D(1), and this region has a distance shorter than twice the radius of curvature R1 from the surface 231D( 1) (see Figs. 35C and 35D). )

[0519] As a result, the surface 231D(2) can be brought closer along the surface 231D(1). Alternatively, the surface 231D(2) can be brought closer while facing the surface 231D(1). Also, the overlapping portion of the surface 231D(1) and the surface 231D(2) can be made thinner. Or the volume can be reduced. As a result, a novel information processing device excellent in convenience, usefulness, or reliability can be provided.

[0520] <Configuration Example 7 of Information Processing Device.> Another configuration of the information processing device according to an aspect of the present invention will be described with reference to Figs. 36 to 38.

[0521] Note that the information processing device described with reference to Figs. 36 to 38 is different from the display panel described with reference to Figs. 34 and 35 in that the display panel 700 includes the surfaces 231 D(4) and 231D(5). Here, different parts will be described in detail, and the above description will be incorporated for parts where the same configuration can be used.

[0522] ​​​​《Configuration Example 3 of Display Panel 700.》 The display panel 700 includes surfaces 231D(1) to 231D(5) (see FIGS. 36A and 36B).

[0523] Surface 231D(3) is sandwiched between surfaces 231D(1) and 231D(2), and surface 231 D(3) can be bent about an axis extending in one direction (see FIGS. 36B and 38 A). Also, surface 231D(5) is sandwiched between surfaces 231D(1) and 231D(4), and surface 231D(5) can be bent about an axis extending in one direction. For example, surface 231D(3) can be bent about axis Y1, and surface 231D(5) can be bent about axis Y4. Specifically, a display panel provided with a hinge 20 can be used for the display unit 2 30 (see FIG. 40). Specifically, a hinge 20(i) including link 11(i), link 11 (i + 1), hook 12(i), hook 12(i + 1), and joint 13A(i) can be used. (i + 1), hook 12(i), hook 12(i + 1), and joint 13A(i) can be used.

[0524] Also, surface 231D(3) of the display panel 700 has a radius of curvature R1 upon bending (see FIG. 38B). When the radius of curvature of surface 231D(3) changes at the bent portion, the smallest radius of curvature at the bent portion can be set as the radius of curvature R1.

[0525] Surface 231D(2) has a region along surface 231D(1), and this region has a distance shorter than twice the radius of curvature R1 from surface 231D( 1) (see FIGS. 38C and 38D). )

[0526] Note that the present embodiment can be appropriately combined with other embodiments shown in this specification. ​​​

[0527] (Embodiment 8) In this embodiment, the configuration of the information processing apparatus according to an aspect of the present invention will be described with reference to FIGS. 25, 26, and 28.

[0528] FIGS. 25, 26, and 28 are diagrams for explaining the configuration of the information processing apparatus according to an aspect of the present invention. FIG. 25A is a block diagram of the information processing apparatus, and FIGS. 25B to 25E are perspective views for explaining the configuration of the information processing apparatus. In addition, FIGS. 26A to 26E are perspective views for explaining the configuration of the information processing apparatus. FIG. 28 is a perspective view for explaining the configuration of the information processing apparatus.

[0529] <Information Processing Apparatus> The information processing apparatus 5200B described in this embodiment includes an arithmetic unit 5210 and an input / output unit 5 220 (see FIG. 25A).

[0530] The arithmetic unit 5210 has a function of supplying operation information and a function of supplying image information based on the operation information.

[0531] The input / output unit 5220 includes a display unit 5230, an input unit 5240, a detection unit 5250, a communication unit 52 90, a function of supplying operation information, and a function of being supplied with image information. In addition, the input / output unit 5220 has a function of supplying detection information, a function of supplying communication information, and a function of being supplied with communication information.

[0532] The input unit 5240 has a function of supplying operation information. For example, the input unit 5240 supplies operation information based on the operation of the user of the information processing apparatus 5200B.

[0533] ​​​Specifically, a keyboard, a hardware button, a pointing device, a touch sensor , an illuminance sensor, an imaging device, an audio input device, a gaze input device, a posture detection device, etc. can be used for the input unit 5 240.

[0534] The display unit 5230 includes a display panel and a function of displaying image information. For example, the display panel described in Embodiment 3 or Embodiment 4 can be used for the display unit 5230.

[0535] The detection unit 5250 has a function of supplying detection information. For example, it has a function of detecting the surrounding environment in which the information processing device is used and supplying it as detection information.

[0536] Specifically, an illuminance sensor, an imaging device, a posture detection device, a pressure sensor, a human presence sensor, etc. can be used for the detection unit 5250.

[0537] The communication unit 5290 has a function of being supplied with communication information and a function of supplying it. For example, it has a function of connecting to other electronic devices or a communication network by wireless communication or wired communication. Specifically, it has functions such as wireless in-building communication, telephone communication, and short-range wireless communication.

[0538] 《Configuration Example 1 of Information Processing Device.》 For example, an outer shape along a cylindrical column or the like can be applied to the display unit 5230 (see FIG. 25 B). Also, it has a function of changing the display method according to the illuminance of the usage environment. Also, it has a function of detecting the presence of a person and changing the display content. As a result, for example, it can be installed on a column of a building. Or, it can display an advertisement or guidance, etc. Or, it can be used for digital signage, etc.

[0539] ​​​​​​ Configuration Example 2 of Information Processing Apparatus For example, it has a function of generating image information based on the trajectory of a pointer used by a user ( see Fig. 25C). Specifically, a display panel with a diagonal length of 20 inches or more, preferably 40 inches or more, more preferably 55 inches or more can be used. Or, a plurality of display panels can be arranged and used in one display area. Or, a plurality of display panels can be arranged and used for a multi-screen. Thereby, for example, it can be used for an electronic blackboard, an electronic display board, an electronic signboard, etc.

[0540] Configuration Example 3 of Information Processing Apparatus It can receive information from other devices and display it on the display unit 5230 (see Fig. 25D) . Or, several options can be displayed. Or, the user can select some from the options and reply to the information source. Or, for example, it has a function of changing the display method according to the illuminance of the use environment. Thereby, for example, the power consumption of a smartwatch can be reduced. Or, for example, an image can be displayed on a smartwatch so that it can be preferably used even in an environment with strong external light such as outdoors on a sunny day.

[0541] Configuration Example 4 of Information Processing Apparatus The display unit 5230 has, for example, a curved surface that gently bends along the side surface of the housing (see Fig. 25E ). Or, the display unit 5230 includes a display panel, and the display panel has a function of displaying on, for example, the front surface, side surface, top surface, and back surface. Thereby, for example, information can be displayed not only on the front surface of a mobile phone but also on the side surface, top surface, and back surface.

[0542] Configuration Example 5 of Information Processing Apparatus ​​For example, information can be received from the Internet and displayed on the display unit 5230 ( see Fig. 26A). Or, the created message can be confirmed on the display unit 5230 . Or, the created message can be transmitted to another device. Or, for example, it has a function of changing the display method according to the illumination of the usage environment . Thereby, the power consumption of the smartphone can be reduced. Or, for example, images can be displayed on the smartphone so that it can be suitably used even in an environment with strong external light such as outdoors on a sunny day .

[0543] 《Configuration Example 6 of the Information Processing Device.》 A remote controller can be used for the input unit 5240 (see Fig. 26B). Also , for example, information can be received from a broadcasting station or the Internet and displayed on the display unit 5230 . Or, the user can be photographed using the detection unit 5250. Or, the video of the user can be transmitted. Or, the viewing history of the user can be obtained and provided to the cloud service . Or, recommendation information can be obtained from the cloud service and displayed on the display unit 5230 . Or, a program or video can be displayed based on the recommendation information. Also , for example, it has a function of changing the display method according to the illumination of the usage environment. Thereby, videos can be displayed on the television system so that it can be suitably used even when strong external light shines indoors on a sunny day .

[0544] 《Configuration Example 7 of the Information Processing Device.》 For example, teaching materials can be received from the Internet and displayed on the display unit 5230 ( see Fig. 26C). Or, using the input unit 5240, a report can be input and sent to the Internet It can be transmitted. Or, from the cloud service, the proofreading result of the report or the evaluation can be obtained and displayed on the display unit 5230. Or, based on the evaluation, a suitable teaching material can be selected and displayed.

[0545] For example, an image signal can be received from another information processing device and displayed on the display unit 5230. Or, it can be leaned against a stand or the like, and the display unit 5230 can be used as a sub-display. Thereby, for example, the image can be displayed on the tablet computer so that it can be suitably used even in an environment with strong external light such as outdoors on a sunny day.

[0546] 《Configuration Example 8 of the Information Processing Device.》 The information processing device includes, for example, a plurality of display units 5230 (see FIG. 26D). For example, it can be displayed on the display unit 5230 while being photographed by the detection unit 5250. Or, the photographed video can be displayed on the detection unit. Or, using the input unit 5240, the photographed video can be decorated. Or, a message can be attached to the photographed video. Or, it can be transmitted to the Internet. Or, it has a function of changing the shooting conditions according to the illuminance of the usage environment. Thereby, for example, the subject can be displayed on the digital camera so that it can be suitably browsed even in an environment with strong external light such as outdoors on a sunny day.

[0547] 《Configuration Example 9 of the Information Processing Device.》 For example, another information processing device can be used as a slave, and the information processing device of the present embodiment can be used as a master to control another information processing device (see FIG. 26E). Or, for example, a part of the image information is displayed on the display unit 5230, and another part of the image information is displayed on the display of another information processing device. It can be displayed on the display unit. An image signal can be supplied. Or, the communication unit 529 0 can be used to acquire information to be written from the input unit of another information processing apparatus. Thus, for example a portable personal computer can be used to utilize a large display area .

[0548] 《Configuration Example 10 of Information Processing Apparatus.》 The information processing apparatus has, for example, a display unit 5230, a detection unit 5250, and a housing (see FIG 28). The housing supports the display unit 5230 and the detection unit 5250

[0549] The display unit 5230 has a display area, and the display area includes, for example, surface 231C(21) and surface 2 31C(22). Surface 231C(21) can be displayed in a first direction (for example, the direction indicated by arrow Z in the figure ), and surface 231C(22) can be displayed in a second direction (for example, the direction opposite to the direction indicated by arrow Y in the figure).

[0550] Further, the detection unit 5250 includes a camera, and the camera can photograph a third direction in which the display area does not perform display (for example the direction opposite to the direction indicated by arrow X in the figure). Thus, while turning the display unit in a direction different from the photographing direction, an image can be displayed on the display unit . Or, while bending the display unit at various angles, for example, 0°, 135°, 180° or 200°, an image can be displayed on the display unit . Note that this embodiment can be appropriately combined with other embodiments shown in this specification

[0551] . .

[0552] (Embodiment 9) In this embodiment, the configuration of the information processing apparatus according to one aspect of the present invention will be described with reference to FIG. 1. It will be described.

[0553] FIG. 1 is a diagram for explaining the configuration of an information processing apparatus according to one aspect of the present invention. FIG. 1A is a perspective view of an information processing apparatus according to one aspect of the present invention, and FIGS. 1B and 1C are perspective views for explaining the bent state of the information processing apparatus shown in FIG. 1A. It is a perspective view, and FIGS. 1B and 1C are perspective views for explaining the bent state of the information processing apparatus shown in FIG. 1A. It is a perspective view for explaining the bent state of the information processing apparatus shown in FIG. 1A.

[0554] <Configuration example of information processing apparatus> The information processing apparatus described in this embodiment has a display unit and a camera 250C (see FIG. 1A). Further, the information processing apparatus includes a housing. The housing supports the display unit and the camera 250C. The housing supports the display unit and the camera 250C. Support.

[0555] <<Configuration example of display unit>> The display unit includes a display panel 700. The display panel 700 includes a surface 231C(1), a surface 231C(2), and a surface 231C(3). It includes a surface 231C(1), a surface 231C(2), and a surface 231C(3).

[0556] The surface 231C(1) is displayed in the first direction. For example, it can be displayed in the direction indicated by the arrow Z in the figure (see FIG. 1A). Or, it can be displayed in the direction exactly opposite to the direction indicated by the arrow Z in the figure (see FIGS. 1B and 1C). It can be displayed in the direction indicated by the arrow Z in the figure (see FIG. 1A). Or, it can be displayed in the direction exactly opposite to the direction indicated by the arrow Z in the figure (see FIGS. 1B and 1C). It can be displayed in the direction exactly opposite to the direction indicated by the arrow Z in the figure (see FIGS. 1B and 1C).

[0557] The surface 231C(2) is displayed in the second direction. For example, it can be displayed in the direction indicated by the arrow Z in the figure (see FIGS. 1A and 1B). Or, it can be displayed in the direction indicated by the arrow Y in the figure (see FIG. 1C). It can be displayed in the direction indicated by the arrow Z in the figure (see FIGS. 1A and 1B). Or, it can be displayed in the direction indicated by the arrow Y in the figure (see FIG. 1C). It can be displayed in the direction indicated by the arrow Y in the figure (see FIG. 1C).

[0558] The surface 231C(3) is sandwiched between the surface 231C(1) and the surface 231C(2). Also, The surface 231C(3) can be bent (see FIGS. 1B and 1C).

[0559] The camera 250C captures images in the second direction. For example, while displaying using the surface 231C(1) in the direction exactly opposite to the direction indicated by the arrow Z in the figure, it is possible to capture images in the direction indicated by the arrow Z in the figure (see Fig. 1B). Or, while displaying using the surface 231C(1) in the direction exactly opposite to the direction indicated by the arrow Z in the figure, it is possible to capture images in the direction indicated by the arrow Y in the figure (see Fig. 1C). Accordingly, while displaying in one direction, it is possible to freely capture images in other directions without being restricted by the display direction. Or, while displaying in one direction, it is possible to capture images in various directions with one camera. Or, while the photographer and the subject confirm the display, it is possible to capture images. As a result, it is possible to provide a novel display panel excellent in convenience, usefulness, or reliability. (1) while displaying using the surface 231C(1) in the direction exactly opposite to the direction indicated by the arrow Z in the figure, it is possible to capture images in the direction indicated by the arrow Y in the figure (see Fig. 1C).

[0560]

[0561] Note that this embodiment can be appropriately combined with other embodiments shown in this specification.

[0562] (Embodiment 10) In this embodiment, the configuration of the display panel according to one aspect of the present invention will be described with reference to Fig. 27.

[0563] Fig. 27 is a diagram for explaining the configuration of a support that can be used for the display panel according to one aspect of the present invention. Fig. 27A is a perspective view for explaining the configuration of the support. Fig. 27B is a diagram for explaining the configuration of a secondary battery housed inside the support.

[0564] The display panel according to one aspect of the present invention includes a support 30(i). The support 30(i) is a secondary battery ​​​​​​​​​​It houses the battery 600 and has a function of supplying power (see Fig. 27A). For example, the secondary battery 6 00 supplies power to drive the display area 231. Note that a secondary battery can be housed in a plurality of supports, for example, the support 30(i). Thereby, the secondary battery can be housed without increasing the volume of the display panel or the capacity of the secondary battery can be increased .

[0565] As shown in Fig. 27B, the cylindrical secondary battery 600 has a positive electrode cap (battery lid) 60 1 on the upper surface and a battery can (outer can) 602 on the side surface and the bottom surface. These positive electrode caps and the battery can (outer can) 602 are insulated by a gasket (insulating packing) 610 .

[0566] Fig. 27B is a diagram schematically showing a cross-section of a cylindrical secondary battery. Inside the hollow cylindrical battery can 6 02, a battery element is provided in which a strip-shaped positive electrode 604 and a negative electrode 606 are wound with a separator 605 interposed therebetween . Although not shown, the battery element is wound around a center pin . One end of the battery can 602 is closed and the other end is open. The battery can 602 can be made of a metal such as nickel, aluminum, titanium, etc. that has corrosion resistance against the electrolytic solution, or an alloy thereof or an alloy of these and other metals (for example, stainless steel, etc.) . Also, in order to prevent corrosion by the electrolytic solution, it is preferable to coat it with nickel, aluminum, etc . Inside the battery can 602 where the positive electrode, negative electrode, and separator are wound, the battery element is sandwiched between a pair of opposing insulating plates 608 and 609. Also, the inside of the battery can 602 where the battery element is provided is filled with a non-aqueous electrolytic solution (not shown). The secondary battery is a co is sandwiched between a pair of opposing insulating plates 608 and 609. Also, the inside of the battery can 602 where the battery element is provided is filled with a non-aqueous electrolytic solution (not shown). The secondary battery is a co ntainer in which a non-aqueous electrolytic solution (not shown) is injected. The secondary battery is a co ​Active materials such as lithium cobalt oxide (LiCoO2) and lithium iron phosphate (LiFePO4) a positive electrode containing the same, a negative electrode made of a carbon material such as graphite capable of storing and releasing lithium ions, and a non-aqueous electrolyte solution in which an electrolyte composed of a lithium salt such as LiBF4 or LiPF 6 is dissolved in an organic solvent such as ethylene carbonate or diethyl carbonate.

[0567] Since the positive and negative electrodes used in the cylindrical battery are wound, it is preferable to form the active material on both sides of the current collector. A positive electrode terminal (positive current collector lead) 603 is connected to the positive electrode 604, and a negative electrode terminal (negative current collector lead) 607 is connected to the negative electrode 606. Both the positive electrode terminal 603 and the negative electrode terminal 607 can use a metal material such as aluminum. The positive electrode terminal 60 3 is resistance welded to the safety valve mechanism 612, and the negative electrode terminal 607 is resistance welded to the bottom of the battery can 602 . The safety valve mechanism 612 is electrically connected to the positive electrode cap 601 via a PTC (Positive Temperature Coef ficient) element 611. The safety valve mechanism 612 disconnects the electrical connection between the positive electrode cap 601 and the positive electrode 604 when the internal pressure of the battery rises above a predetermined threshold value. Also, the PTC element 611 is a thermal resistance element whose resistance increases when the temperature rises, and it limits the current amount due to the increase in resistance to prevent abnormal heat generation . For the PTC element, barium titanate (BaTiO3)-based semi conductive ceramics or the like can be used.

[0568] A lithium-ion secondary battery using an electrolyte solution includes a positive electrode, a negative electrode, a separator, an electrolyte solution, and an outer package. In a lithium-ion secondary battery, the anode (positive electrode) changes during charging and discharging The anode and the cathode are swapped, and the oxidation reaction and the reduction reaction are swapped, so the electrode with a higher reaction potential is called the positive electrode, and the electrode with a lower reaction potential is called the negative electrode. Therefore, in this specification and the like, even during charging or discharging, the positive electrode is called "positive electrode" or "+ electrode (plus electrode)", and the negative electrode is called "negative electrode" or "-electrode (minus electrode)". Using terms such as anode and cathode related to oxidation and reduction reactions would result in the opposite during charging and discharging, which may cause confusion. Therefore, terms such as anode and cathode will not be used in this specification. If terms such as anode and cathode are used, it is necessary to specify whether it is during charging or discharging, and also indicate which one it corresponds to, the positive electrode (plus electrode) or the negative electrode (minus electrode).

[0569] In this embodiment, an example of a lithium-ion secondary battery is shown, but it is not limited to lithium-ion secondary batteries. As the positive electrode material of the secondary battery, for example, a material having element A, element X, and oxygen can be used. Element A is preferably one or more selected from Group 1 elements and Group 2 elements. As Group 1 elements, for example, alkali metals such as lithium, sodium, and potassium can be used. Also, as Group 2 elements, for example, calcium, beryllium, magnesium, etc. can be used. As element X, for example, one or more selected from metal elements, silicon, and phosphorus can be used. Also, element X is preferably one or more selected from cobalt, nickel, manganese, iron, and vanadium. Typically, lithium cobalt composite oxide (LiCoO2), lithium iron phosphate (LiFe Examples include PO4).

[0570] The negative electrode has a negative electrode active material layer and a negative electrode current collector. The negative electrode active material layer may also have a conductive assistant and a binder.

[0571] As the negative electrode active material, an element capable of performing a charge and discharge reaction by an alloying / dealloying reaction with lithium can be used. For example, silicon, tin, gallium, aluminum, ger manium, lead, antimony, bismuth, silver, zinc, cadmium, indium, etc. A material containing at least one of them can be used. Such an element has a larger capacity than carbon, and in particular, silicon has a high theoretical capacity of 4200 mAh / g.

[0572] In addition, the secondary battery preferably has a separator. Examples of the separator include fibers having cellulose such as paper, non-woven fabrics, glass fibers, ceramics, or synthetic fibers made of nylon (polyamide), vinylon (polyvinyl alcohol-based fiber), polyester, acrylic resin, polyolefin, polyurethane, etc. can be used.

[0573] This embodiment can be implemented in appropriate combination with the configurations described in other embodiments etc.

[0574] (Embodiment 11) In this embodiment, a metal oxide (hereinafter also referred to as an oxide semiconductor) that can be used for the OS transistor described in the above embodiment will be described.

[0575] The metal oxide preferably contains at least indium or zinc. In particular, indium ​​​​​​​and preferably contains zinc. In addition to these, it is preferable that aluminum, gallium, yttrium, tin, etc. are included. Also, one or more selected from boron, silicon, titanium, iron, nickel, germanium, zirconium, molybdenum, lanthanum, cerium, neodymium, hafnium, tantalum, tungsten, magnesium, cobalt, etc. may be included. yttrium, tin, etc. are preferably included. Also, boron, silicon, titanium , iron, nickel, germanium, zirconium, molybdenum, lanthanum, cerium, neo dymium, hafnium, tantalum, tungsten, magnesium, cobalt, etc. selected from among them may be included.

[0576] <Classification of crystal structures> First, the classification of crystal structures in the oxide semiconductor will be described with reference to FIG. 42A. FIG. 42A is a diagram for explaining the classification of the crystal structure of an oxide semiconductor, typically an IGZO (metal oxide containing In, Ga, and Zn). is a diagram for explaining the classification of the crystal structure of an oxide semiconductor, typically an IGZO (metal oxide containing In, Ga, and Zn).

[0577] As shown in FIG. 42A, oxide semiconductors are roughly classified into "Amorphous", "Crystalline", and "Crystal". Also, "Amorphous" includes completely amorphous. Also, "Crystalline" includes CAAC (c-axis aligned crystalline), nc (nanocrystalline), and CAC (cloud-aligned composite). and "Crystalline", and "Crystal". classified into. Also, "Amorphous" includes completely amorp hous. Also, "Crystalline" includes CAAC (c-ax is-aligned crystalline), nc (nanocrystalli ne), and CAC (cloud-aligned composite). Note that single crystal and poly crystal are excluded from the classification of "Crystalline". Also, "Crystal" includes single c rystal and poly crystal. rystal and poly crystal are included.

[0578] Note that the structure within the thick frame shown in FIG. 42A is "Amorphous" and "Cry an intermediate state between "stal (crystal)" and a new boundary region (New crystal line phase). That is, the structure belongs to the energy-unstable "Amorphous" or is completely different from "Crystal". It can be said that it has a structure completely different from that of "Amorphous" or "Crystal".

[0579] The crystal structure of the film or substrate can be evaluated using an X-ray diffraction (XRD) spectrum. Here, the XRD spectra obtained by the grazing-incidence XRD (GIXD) method for a quartz glass substrate and an IGZO (also referred to as crystalline IGZO) film having a crystal structure classified as "Cr ystalline" are shown in FIGS. 42B and 42C, respectively. Note that the GIXD method is also referred to as the thin-film method or the Seemann-Bohlin method. Hereinafter, the XRD spectra obtained by the GIXD method shown in FIGS. 42B and 42C are simply referred to as XRD spectra. FIG. 42B is the XRD spectrum of the quartz glass substrate, and FIG. 42C is the XRD spectrum of the crystalline IGZO film. Note that the composition of the crystalline IGZO film shown in FIG. 42C is in the vicinity of In:Ga:Zn = 4:2:3 [atomic ratio]. Also, the thickness of the crystalline IGZO film shown in FIG. 42C is 500 nm. ). As shown by the arrows in FIG. 42B, in the quartz glass substrate, the shape of the peak of the XRD spectrum is substantially symmetric about the left and right. On the other hand, as shown by the arrows in FIG. 42C, in the crystalline IGZO film, the shape of the peak of the X RD spectrum is asymmetric about the left and right. The asymmetry of the shape of the peak of the XRD spectrum indicates the presence of crystals in the film or substrate. In other words,

[0580] As shown by the arrows in FIG. 42B, in the quartz glass substrate, the shape of the peak of the XRD spectrum is substantially symmetric about the left and right. On the other hand, as shown by the arrows in FIG. 42C, in the crystalline IGZO film, the X RD spectrum has an asymmetric peak shape about the left and right. The asymmetric peak shape of the XRD spectrum indicates the presence of crystals in the film or substrate. In other words, ​​​​​If the peak shape of the XRD spectrum is not symmetric, the film or substrate is in an amorphous state However, Fig. 42C shows a crystal phase (IGZO crystal phase) clearly at 2θ = 31° or in its vicinity. The asymmetric peak shape in the XRD spectrum is presumed to be due to the diffraction peak from the crystal phase (tiny crystals).

[0581] Specifically, the interference of X-rays scattered by the atoms contained in IGZO is presumed to contribute to the peak at 2θ = 34° or in its vicinity. Also, the tiny crystals are presumed to contribute to the peak at 2θ = 31° or in its vicinity. In the XRD spectrum of the crystalline IGZO film shown in Fig. 42C, the peak width on the low-angle side becomes wider at the peak of 2θ = 34° or in its vicinity. This suggests that tiny crystals due to the peak at 2θ = 31° or in its vicinity are present in the crystalline IGZO film.

[0582] Also, the crystal structure of the film or substrate can be evaluated by the diffraction pattern (also called the nano-beam electron diffraction pattern) observed by the nano-beam electron diffraction method (NBED). The diffraction patterns of a quartz glass substrate and an IGZO film formed with the substrate temperature at room temperature are shown in Figs. 42D and 42E respectively. Fig. 42D is the diffraction pattern of the quartz glass substrate, and Fig. 42E is the diffraction pattern of the IGZO film. Note that the IGZO film shown in Fig. 42E is formed by sputtering using an oxide target with In:Ga:Zn = 1:1:1 [atomic ratio]. Also, in the nano-beam electron diffraction method, electron diffraction is performed with a probe diameter of 1 nm.

[0583] ​​​​​​​​​​​​​ As shown in FIG. 42D, a halo is observed in the diffraction pattern of the quartz glass substrate, and it can be confirmed that the quartz glass is in an amorphous state. Also, as shown in FIG. 42E, at room temperature in the diffraction pattern of the deposited IGZO film, a spot-like pattern is observed instead of a halo pattern. Therefore, the IGZO film deposited at room temperature is in an intermediate state, neither in a crystalline state nor in an amorphous state, and it is presumed that it cannot be concluded that it is in an amorphous state.

[0584] [[Structure of Oxide Semiconductor]] Note that when focusing on the crystal structure, the oxide semiconductor may be classified differently from that in FIG. 42A. For example, the oxide semiconductor can be divided into single-crystalline oxide semiconductors and other non-single-crystalline oxide semiconductors. Examples of non-single-crystalline oxide semiconductors include the above-mentioned CAAC-OS, and nc-OS. Also, non-single-crystalline oxide semiconductors include polycrystalline oxide semiconductors, pseudo-non-crystalline oxide semiconductors (a-like OS: amorphous-like oxide semiconductor), amorphous oxide semiconductors, and the like. Here, the details of the above-mentioned CAAC-OS, nc-OS, and a-like OS will be

[0585] described. [[CAAC-OS]]

[0586] [[CAAC-OS]] CAAC-OS is an oxide semiconductor having a plurality of crystal regions, and the c-axes of the plurality of crystal regions are arranged in a specific direction. Note that the specific direction is the thickness direction of the CAAC-OS film, the normal direction of the surface on which the CAAC-OS film is formed, or the normal direction of the surface of the CAAC-OS film. Also, the crystal region is a region having periodicity in the atomic arrangement. Note that the atomic arrangement is a lattice When regarded as an array, the crystal region is also a region where the lattice array is aligned. Further, CAAC-O S has a region where a plurality of crystal regions are connected in the a-b plane direction, and this region may have strain Note that the strain refers to a location where the orientation of the lattice array changes between a region where the lattice arrays are aligned and another region where the lattice arrays are aligned in a region where a plurality of crystal regions are connected That is, CAAC-OS is an oxide semiconductor that is c-axis oriented and has no obvious orientation in the a-b plane direction

[0587] Each of the plurality of crystal regions described above is composed of one or a plurality of minute crystals (crystals having a maximum diameter of less than 10 nm). When a crystal region is composed of one minute crystal, the maximum diameter of the crystal region is less than 10 nm. Also, when a crystal region is composed of a number of minute crystals, the size of the crystal region may be on the order of several tens of nm

[0588] Also, in In-M-Zn oxide (element M is one or more selected from aluminum, gallium, yttrium, tin , titanium, etc.), CAAC-OS tends to have a layered crystal structure (also referred to as a layered structure) in which a layer containing indium (In) and oxygen (hereinafter, In layer) and a layer containing element M, zinc (Zn), and oxygen (hereinafter, (M,Zn) layer) are laminated. Note that indium and element M are mutually substitutable. Thus, the (M,Zn) layer may contain indium. Also, the In layer may contain element M . Note that the In layer may also contain Zn. The layered structure is observed as a lattice image, for example, in a high-resolution TEM image

[0589] ​​​​​When performing a structural analysis on a CAAC-OS film using, for example, an XRD apparatus, a θ / 2θ scan In the out-of-plane XRD measurement using a scan, a peak indicating c-axis orientation is detected at 2θ = 31° or in its vicinity. Note that the position of the peak indicating c-axis orientation (the value of 2θ) may vary depending on the type and composition of the metal elements constituting CAAC-OS.

[0590] Also, for example, in the electron diffraction pattern of a CAAC-OS film, a plurality of bright spots (spots ) are observed. Note that one spot and another spot are observed at point-symmetric positions with the spot of the incident electron beam transmitted through the sample (also called the direct spot) as the center of symmetry. are observed.

[0591] When observing the crystal region from the above specific direction, the lattice arrangement within the crystal region is based on a hexagonal lattice, but the unit cell is not necessarily a regular hexagon and may be a non-regular hexagon. Also, in the above strain, there may be lattice arrangements such as pentagons and heptagons. Note that in CAAC- OS, even in the vicinity of strain, no clear grain boundaries can be confirmed. That is, it can be seen that the formation of grain boundaries is suppressed by the strain of the lattice arrangement. This is considered to be because CAAC-OS can tolerate strain due to the fact that the arrangement of oxygen atoms is not dense in the a-b plane direction and the interatomic bond distance changes due to the substitution of metal atoms.

[0592] Note that a crystal structure in which clear grain boundaries are confirmed is called a so-called polycrystal (polycrysta l). Grain boundaries serve as recombination centers, and carriers are captured, resulting in the OFF state of the transistor. It is highly likely to cause a decrease in current, a decrease in field-effect mobility, etc. Therefore, a clear conclusion CAAC-OS without confirmed grain boundaries has a crystal structure suitable for the semiconductor layer of a transistor and is one of the crystalline oxides. Note that to form CAAC-OS, a composition containing Zn is preferred. For example, In-Zn oxide and In-Ga-Zn oxide are suitable because they can suppress the generation of grain boundaries more effectively than In oxide .

[0593] CAAC-OS is an oxide semiconductor with high crystallinity and no confirmed clear grain boundaries . Therefore, it can be said that CAAC-OS is less likely to cause a decrease in electron mobility due to grain boundaries . Also, the crystallinity of an oxide semiconductor may decrease due to the incorporation of impurities or the generation of defects. Therefore, CAAC-OS can also be regarded as an oxide semiconductor with few impurities and defects (such as oxygen vacancies) . Therefore, the physical properties of the oxide semiconductor having CAAC-OS are stable. For this reason, the oxide semiconductor having CAAC-OS is heat-resistant and highly reliable. Also, CAAC -OS is stable against high temperatures (so-called thermal budget) in the manufacturing process . Therefore, when CAAC-OS is used for an OS transistor, it becomes possible to expand the degree of freedom in the manufacturing process . .

[0594] [nc-OS] nc-OS has periodicity in the atomic arrangement in a minute region (for example, a region of 1 nm or more and 10 nm or less, particularly a region of 1 nm or more and 3 nm or less). In other words, nc-OS has minute crystals. Note that since the size of the minute crystals is, for example, 1 nm or more and 10 nm or less, particularly 1 nm or more and 3 nm or less, the minute crystals are also referred to as nano crystals. Also . ​In nc-OS, no regularity is observed in the crystal orientation among different nanocrystals. Therefore, no orientation is observed throughout the film. Thus, depending on the analysis method, nc-OS may not be distinguishable from a-like OS or an amorphous oxide semiconductor. For example, when performing structural analysis on an nc-OS film using an XRD apparatus, no peak indicating crystallinity is detected in the Out-of-plane XRD measurement using θ / 2θ scan. Also, for an nc-OS film , when performing electron beam diffraction (also referred to as limited field of view electron beam diffraction) using an electron beam with a probe diameter larger than that of the nanocrystals (e.g., 50 nm or more), a diffraction pattern like a halo pattern is observed . On the other hand, when performing electron beam diffraction (also referred to as nanobeam electron beam diffraction) on an nc-OS film using an electron beam with a probe diameter close to or smaller than that of the nanocrystals (e.g., 1 nm or more and 30 nm or less), an electron beam diffraction pattern in which a number of spots are observed within a ring-shaped region centered on a direct spot may be obtained .

[0595] [a-like OS] a-like OS is an oxide semiconductor having a structure between nc-OS and an amorphous oxide semiconductor. a-like OS has a loose or low-density region. That is, a-like OS has lower crystallinity compared to nc-OS and CAAC-OS. Also, a-like OS has a higher hydrogen concentration in the film compared to nc-OS and CAAC-OS.

[0596] <<Constitution of Oxide Semiconductor>> Next, the details of the above-mentioned CAC-OS will be described. Note that CAC-OS relates to the material constitution .

[0597] [CAC-OS] CAC-OS is, for example, a component of a material in which the elements constituting the metal oxide are unevenly distributed in a size range of 0.5 nm or more and 10 nm or less , preferably 1 nm or more and 3 nm or less, or in the vicinity of such a size. In the following, in the metal oxide, one or more metal elements are unevenly distributed, and the region having the metal element is in a mixed state in a size range of 0.5 nm or more and 10 nm or less, preferably 1 nm or more and 3 nm or less, or in the vicinity of such a size, and this state is also referred to as a mosaic state or a patch state.

[0598] Furthermore, CAC-OS is a structure in which the material is separated into a first region and a second region to form a mosaic state, and the first region is distributed in the film (hereinafter also referred to as a cloud state). That is, CAC-OS is a composite metal oxide having a structure in which the first region and the second region are mixed.

[0599] Here, the atomic ratios of In, Ga, and Zn to the metal elements constituting CAC-OS in the In-Ga-Zn oxide are represented as [In], [Ga], and [Zn], respectively. For example, in CAC-OS in the In-Ga-Zn oxide, the first region is a region where [In] is larger than [In] in the composition of the CAC-OS film. Also, the second region is a region where [Ga] is larger than [Ga] in the composition of the CAC-OS film. Or, for example, the first region is a region where [In] is larger than [In] in the second region and [Ga] is smaller than [Ga] in the second region. Also, the second region is a region where [Ga] is larger than [Ga] in the first region and [In] is smaller than [In] in the first region.

[0600] Specifically, the above-mentioned first region has indium oxide, indium zinc oxide, etc. as the main components and is a region where they are present. Also, the above-mentioned second region has gallium oxide, gallium zinc oxide, etc as the main components. That is, the above-mentioned first region can be referred to as a region mainly composed of In and the above-mentioned second region can be referred to as a region mainly composed of Ga .

[0601] Note that in some cases, a clear boundary cannot be observed between the above-mentioned first region and the above-mentioned second region

[0602] In addition, CAC-OS in In-Ga-Zn oxide refers to a structure in a material composition containing In, Ga, Zn, and O wherein a region mainly composed of Ga in part and a region mainly composed of In in part are each in a mosaic shape and these regions are randomly present . Therefore, it is presumed that CAC-OS has a structure in which metal elements are unevenly distributed .

[0603] CAC-OS can be formed by, for example, a sputtering method under conditions where the substrate is not intentionally heated . Also, when forming CAC-OS by a sputtering method, as the film-forming gas , any one or more selected from inert gases (typically argon), oxygen gas, and nitrogen gas may be used . Also, the lower the flow rate ratio of oxygen gas to the total flow rate of the film-forming gas during film formation, the more preferable it is. For example, the flow rate ratio of oxygen gas to the total flow rate of the film-forming gas during film formation is preferably 0% or more and less than 30%, more preferably 0% or more and 10% or less .

[0604] Also, for example, in CAC-OS in In-Ga-Zn oxide, energy-dispersive X-rays ​​Spectroscopy (EDX: Energy Dispersive X-ray spectroscopy copy) was used to obtain EDX mapping, and it was confirmed that the region mainly composed of In (the first region) and the region mainly composed of Ga (the second region) are unevenly distributed and have a mixed structure. That is, it can be confirmed.

[0605] Here, the first region is a region with higher conductivity compared to the second region. That is, when carriers flow through the first region, the conductivity as a metal oxide is exhibited. Therefore, when the first region is distributed in a cloud shape in the metal oxide, a high field-effect mobility (μ ) can be realized.

[0606] On the other hand, the second region is a region with higher insulation compared to the first region. That is, when the second region is distributed in the metal oxide, the leakage current can be suppressed.

[0607] Therefore, when CAC-OS is used in a transistor, the conductivity caused by the first region and the insulation caused by the second region act complementarily to endow CAC-OS with the function of switching (the function of turning on / off). That is, CAC- OS has a conductive function in part of the material and an insulating function in part of the material, and has a semiconductor function as a whole. By separating the conductive function and the insulating function in this way, both functions can be maximally enhanced. Therefore, by using CAC-OS in a transistor , a high on-current (I ), a high field-effect mobility (μ), and a good switching operation can be realized. on ) That is, it can be realized.

[0608] In addition, a transistor using CAC-OS has high reliability. Therefore, CAC-OS is optimal for various semiconductor devices including displays.

[0609] Oxide semiconductors have various structures and each has different characteristics. In one aspect of the present invention, the oxide semiconductor may have two or more of an amorphous oxide semiconductor, a polycrystalline oxide semiconductor, an a-like OS, CA C-OS, nc-OS, and CAAC-OS.

[0610] <Transistor having an oxide semiconductor> Subsequently, the case of using the above oxide semiconductor in a transistor will be described.

[0611] By using the above oxide semiconductor in a transistor, a transistor with high field-effect mobility can be realized. Also, a highly reliable transistor can be realized.

[0612] For a transistor, it is preferable to use an oxide semiconductor with a low carrier concentration. For example, the carrier concentration of the oxide semiconductor is 1×10 17 cm -3 or less, preferably 1×10 15 cm -3 or less, more preferably 1×10 13 cm -3 or less, even more preferably 1×10 11 c m -3 or less, even more preferably 1×10 10 cm -3 less than, and 1×10 -9 cm -3 or more. When reducing the carrier concentration of the oxide semiconductor film, the impurity concentration in the oxide semi conductor film may be lowered and the density of defect energy levels may be lowered. In this specification and the like, A semiconductor oxide with a low impurity concentration and a low density of defect levels is referred to as a highly pure intrinsic or substantially highly pure intrinsic semiconductor. . Sometimes, an oxide semiconductor with a low carrier concentration is called a highly pure intrinsic or substantially highly pure intrinsic oxide semiconductor.

[0613] In addition, an oxide semiconductor film that is highly pure intrinsic or substantially highly pure intrinsic has a low density of defect levels. Therefore, the trap level density may also be low.

[0614] In addition, the charge trapped in the trap levels of the oxide semiconductor may take a long time to disappear and may behave like a fixed charge. Therefore, a transistor in which a channel formation region is formed in an oxide semiconductor with a high trap level density may have unstable electrical characteristics.

[0615] Therefore, in order to stabilize the electrical characteristics of the transistor, it is effective to reduce the impurity concentration in the oxide semiconductor. In addition, in order to reduce the impurity concentration in the oxide semiconductor, it is preferable to also reduce the impurity concentration in the adjacent film. Examples of impurities include hydrogen, nitrogen, alkali metals, alkaline earth metals, iron, nickel, silicon, and the like.

[0616] <Impurity> Here, the effects of various impurities in the oxide semiconductor will be described.

[0617] In an oxide semiconductor, when silicon or carbon, which is one of the Group 14 elements, is contained, defect levels are formed in the oxide semiconductor. For this reason, the concentration of silicon or carbon in the oxide semiconductor and the concentration of silicon or carbon in the vicinity of the interface with the oxide semiconductor (by secondary ion mass spectrometry (SIMS: Secondary Ion Mass Spectrometry)) SIMS: Secondary Ion Mass Spectrometry) The resulting concentration) is 2×10 18 atoms / cm 3 or less, preferably 2×10 17 at oms / cm 3 or less.

[0618] In addition, when an alkali metal or alkaline earth metal is contained in the oxide semiconductor, defect levels may be formed and carriers may be generated. Therefore, a transistor using an oxide semiconductor containing an alkali metal or alkaline earth metal tends to have normally-on characteristics. For this reason, the concentration of the alkali metal or alkaline earth metal in the oxide semiconductor obtained by SIMS is set to 1×10 atoms / cm 18 or less, preferably 2×10 16 atoms / cm 3 or less.

[0619] In addition, in the oxide semiconductor, when nitrogen is contained, electrons as carriers are generated, and the carrier concentration increases, and it tends to be n-type. As a result, a transistor using an oxide semiconductor containing nitrogen tends to have normally-on characteristics. Or, in the oxide semiconductor when nitrogen is contained, trap levels may be formed. As a result, the electrical characteristics of the transistor may become unstable. For this reason, the nitrogen concentration in the oxide semiconductor obtained by SIMS is set to less than 5×10 atoms / cm 19 preferably less than 5×10 3 atom s / cm 3 or less, more preferably 1×10 18 atoms / cm 3 or less, even more preferably 17 is 5×10

[0620] atoms / cm 3 ​​Make it as follows.

[0620] In addition, since hydrogen contained in the oxide semiconductor reacts with oxygen bonded to metal atoms to form water, oxygen vacancies may be formed. When hydrogen enters these oxygen vacancies, electrons that are carriers may be generated. Also, a part of the hydrogen may bond with oxygen bonded to metal atoms to generate electrons that are carriers. Therefore, a transistor using an oxide semiconductor containing hydrogen tends to have normally-on characteristics. For this reason, it is preferable that hydrogen in the oxide semiconductor is reduced as much as possible. Specifically, in the oxide semiconductor, the hydrogen concentration obtained by SIM S is less than 1×10 20 atoms / cm 3 , preferably less than 1×1 0 19 atoms / cm 3 , more preferably less than 5×10 18 atoms / cm 3 , even more preferably less than 1×10 18 atoms / cm 3 Make it less.

[0621] Using an oxide semiconductor with sufficiently reduced impurities in the channel formation region of a transistor can impart stable electrical characteristics.

[0622] Note that this embodiment can be appropriately combined with other embodiments shown in this specification. .

[0623] For example, in this specification and the like, when it is explicitly described that X and Y are connected, it is assumed that the cases where X and Y are electrically connected, where X and Y are functionally connected, and where X and Y are directly connected are disclosed in this specification and the like. Therefore, it is not limited to a predetermined connection relationship, for example, the connection relationship shown in the figure or the text. In addition, those other than the connection relationship shown in the figure or the text are also regarded as those disclosed in the figure or the text. Do.

[0624] Here, let X and Y be objects (for example, devices, elements, circuits, wirings, electrodes, terminals, conductive films, layers , etc.).

[0625] As an example of the case where X and Y are directly connected, an element that enables electrical connection between X and Y (for example, a switch, a transistor, a capacitive element, an inductor, a resistive element, a diode , a display element, a light-emitting element, a load, etc.) is not connected between X and Y, and X and Y are connected without an element (for example, a switch, a transistor, a capacitive element, an inductor, a resistive element, a diode , a display element, a light-emitting element, a load, etc.) that enables electrical connection between X and Y. That is, X and Y are connected without passing through an element (for example, a switch, a transistor, a capacitive element, an inductor, a resistive element, a diode, a display element, a light-emitting element, a load, etc.) that enables electrical connection between X and Y. This is the case where X and Y are connected.

[0626] As an example of the case where X and Y are electrically connected, an element that enables electrical connection between X and Y (for example, a switch, a transistor, a capacitive element, an inductor, a resistive element, a diode , a display element, a light-emitting element, a load, etc.) can be connected by one or more between X and Y. Note that the switch has a function of controlling on / off. That is, the switch becomes a conductive state (on state) or a non-conductive state (off state), and has a function of controlling whether to allow current to flow or not. Or, the switch has a function of selecting and switching a path through which current flows. Note that when X and Y are electrically connected, it shall include the case where X and Y are directly connected. That is, the switch becomes a conductive state (on state) or a non-conductive state (off state), and has a function of controlling whether to allow current to flow or not. Or, the switch has a function of selecting and switching a path through which current flows. Note that when X and Y are electrically connected, it shall include the case where X and Y are directly connected. Y are directly connected. Y are directly connected.

[0627] As an example of the case where X and Y are functionally connected, a circuit that enables the functional connection between X and Y (for example, a logic circuit (such as an inverter, NAND circuit, NOR circuit, etc.), a signal conversion circuit (DA conversion circuit, AD conversion circuit, gamma correction circuit, etc.), a potential level conversion circuit (a power source circuit (boost circuit, buck circuit, etc.), a level shifter circuit that changes the potential level of a signal, etc.) , a voltage source, a current source, a switching circuit, an amplification circuit (a circuit that can increase the signal amplitude or current amount, such as an operational amplifier, differential amplification circuit, source follower circuit, buffer circuit, etc.), a signal generation circuit, a memory circuit, a control circuit, etc.) can be connected with one or more between X and Y. Note that, as an example, even if another circuit is sandwiched between X and Y, if the signal output from X is transmitted to Y, it is considered that X and Y are functionally connected. Note that when X and Y are functionally connected, it includes the case where X and Y are directly connected and the case where X and Y are electrically connected. In addition, when it is explicitly described that X and Y are electrically connected, it includes the case where X and Y are electrically connected (that is, the case where they are connected with another element or another circuit sandwiched between X and Y), the case where X and Y are functionally connected (that is, the case where they are functionally connected with another circuit sandwiched between X and Y), and the case where X and Y are directly connected (that is, the case where they are connected without another element or another circuit sandwiched between X and Y). It is disclosed in this specification and the like. That is, when it is explicitly described that they are electrically connected, it is only explicitly described that they are connected.

[0628] The same content is assumed to be disclosed in this specification and the like.

[0629] For example, when the source (or the first terminal, etc.) of the transistor is electrically connected to X via (or without) Z1, and the drain (or the second terminal, etc.) of the transistor is electrically connected to Y via (or without) Z2, or when the source (or the first terminal, etc.) of the transistor is directly connected to a part of Z1, another part of Z1 is directly connected to X, the drain (or the second terminal, etc.) of the transistor is directly connected to a part of Z2, and another part of Z2 is directly connected to Y, it can be expressed as follows. (or the first terminal, etc.) of the transistor is directly connected to a part of Z1, another part of Z1 is directly connected to X, the drain (or the second terminal, etc.) of the transistor is directly connected to a part of Z2, and another part of Z2 is directly connected to Y, it can be expressed as follows.

[0630] For example, it can be expressed as "X, Y, the source (or the first terminal, etc.) and the drain (or the second terminal, etc.) of the transistor are electrically connected to each other, and are electrically connected in the order of X, the source (or the first terminal, etc.) of the transistor, the drain (or the second terminal, etc.) of the transistor, Y." Or, it can be expressed as "The source (or the first terminal, etc.) of the transistor is electrically connected to X, the drain (or the second terminal, etc.) of the transistor is electrically connected to Y, and X, the source (or the first terminal, etc.) of the transistor, the drain (or the second terminal, etc.) of the transistor, Y are electrically connected in this order." Or, it can be expressed as "X is electrically connected to Y via the source (or the first terminal, etc.) and the drain (or the second terminal, etc.) of the transistor, and X, the source (or the first terminal, etc.) of the transistor, the drain (or the second terminal, etc.) of the transistor, Y are electrically connected in this order." ) and Y are provided in this connection order" can be expressed. Similar to these examples By using such an expression method and defining the connection order in the circuit configuration, the source (or the first terminal, etc.) of the transistor and the drain (or the second terminal, etc.) can be distinguished, and the technical scope can be determined.

[0631] Or, as another expression method, for example, "The source (or the first terminal, etc.) of the transistor is electrically connected to X via at least the first connection path, and the first connection path does not have a second connection path, and the second connection path is the path between the source (or the first terminal, etc.) of the transistor and the drain (or the second terminal, etc.) of the transistor via the transistor. The first connection path is the path via Z1, and the drain (or the second terminal, etc.) of the transistor is electrically connected to Y via at least the third connection path, and the third connection path does not have the second connection path, and the third connection path is the path via Z2." can be expressed. Or, "The source (or the first terminal, etc.) of the transistor is electrically connected to X via Z1 through at least the first connection path, and the first connection path does not have a second connection path, and the second connection path has a connection path via the transistor. The drain (or the second terminal, etc.) of the transistor is electrically connected to Y via Z2 through at least the third connection path, and the third connection path does not have the second connection path." can be expressed. Or, "The source (or the first terminal, etc.) of the transistor is electrically connected to X via Z1 by at least the first connection path, and the first connection path does not have a second connection path, and the second connection path has a connection path via the transistor. The drain (or the second terminal, etc.) of the transistor is electrically connected to Y via Z2 by at least the third connection path, and the third connection path does not have the second connection path." can be expressed. Or, "The source (or the first terminal, etc.) of the transistor is electrically connected to X via Z1 by at least the first electrical path, and the first electrical path path does not have a second connection path,​​ The path does not have a second electrical path, and the second electrical path is from the source (or the first terminal, etc.) of the transistor to the drain (or the second terminal, etc.) of the transistor and the drain (or the second terminal, etc.) of the transistor is electrically connected to Y via Z2 by at least a third electrical path, and the third electrical path does not have a fourth electrical path, and the fourth electrical path is an electrical path from the drain (or the second terminal, etc.) of the transistor to the source (or the first terminal, etc.) of the transistor. It can be expressed as "". Using an expression method similar to these examples, by defining the connection path in the circuit configuration it is possible to distinguish between the source (or the first terminal, etc.) and the drain (or the second terminal, etc.) of the transistor and determine the technical scope . (or the second terminal, etc.) to the source (or the first terminal, etc.) of the transistor. It should be noted that these expression methods are just examples and are not limited to these expression methods. Here, X , Y, Z1, and Z2 are assumed to be objects (for example, devices, elements, circuits, wirings, electrodes, terminals, conductive films , layers, etc.). Even when components that are independent on the circuit diagram are shown as being electrically connected, there may be a case where one component has the functions of a plurality of components . For example, when a part of the wiring also functions as an electrode, one conductive film has the functions of both a wiring and an electrode component. Therefore, the electrical connection in this specification

[0632] also includes such a case where one conductive film has the functions of a plurality of components within its scope.

Explanation of Reference Numerals

[0633] ​​​​​​​​

[0634] ANO: Conductive film, C21: Capacitance element, C22: Capacitance element, CI: Control information, D1: Distance, D2: Distance, DS: Detection information, E1: Ridge part, E3: Ridge part, E4: Ridge part, E5: Part, G1 : Scanning line, G2: Scanning line, GCLK: Signal, II: Input information, N1: Node, P1: Position Information, PWC1: Signal, PWC2: Signal, S1: Signal line, S2: Signal line, SP: Control signal , SW21: Switch, SW22: Switch, V11: Information, VCOM2: Conductive film, VI : Image information, FPC1: Flexible printed circuit board, 11: Link, 11A: End part, 11 B: End part, 11C: End part, 12: Hook, 12A: End part, 12B: End part, 13A: Joint, 13B: Joint, 19: Connection part, 20: Hinge, 30: Support, 30A: Support, 30B: Support, 200: Information processing device, 210: Arithmetic unit, 211: Arithmetic part, 212: Memory part, 213: Artificial intelligence part, 214: Transmission path, 215: Input / output interface, 220: Input / output Device, 230: Display part, 231: Display area, 231(i): Area, 231A: Display area , 231A(i): Area, 231AS: Area, 231B: Display area, 231C: Surface, 23 1D: Surface, 231B(i): Area, 231BS: Area, 231S: Area, 233: Control circuit Path, 234: Expansion circuit, 235: Image processing circuit, 238: Control part, 240: Input part, 24 1: Detection area, 241D: Detection area, 248: Control part, 250: Detection part, 250C: Camera Lens, 290: Communication part, 400: Molecular weight, 501C: Insulating film, 501D: Insulating film, 504: Conductive film, 506: Insulating film, 508: Semiconductor film, 508A: Area, 508B: Area, 508 C: Area, 510: Substrate, 512A: Conductive film, 512B: Conductive film, 516: Insulating film, 51 8: Insulating film, 519B: Terminal, 520: Functional layer, 521: Insulating film, 524: Conductive film, 52 8: Insulating film, 530: Pixel circuit, 550: Display element, 551: Electrode, 552: Electrode, 55 3: Layer, 573: Insulating film, 573A: Insulating film, 573B: Insulating film, 591A: Opening, 6 00: Secondary battery, 601: Positive electrode cap, 602: Battery can, 603: Positive electrode terminal, 604: Positive electrode, 605: Separator, 606: Negative electrode, 607: Negative electrode terminal, 608: Insulating plate, 609 : Insulating plate, 611: PTC element, 612: Safety valve mechanism, 700: Display panel, 700TP : Input / output panel, 702: Pixel, 703: Pixel, 705: Sealing material, 720: Functional layer, 75 3: Layer, 770: Substrate, 770P: Functional film, 771: Insulating film, 802: Detector, 5200 B: Information processing device, 5210: Arithmetic unit, 5220: Input / output device, 5230: Display unit, 5 240: Input unit, 5250: Detection unit, 5290: Communication unit

Claims

1. An information processing apparatus comprising a display unit, a detection unit, and a housing that supports the display unit and the detection unit, wherein the display unit has a display panel, the detection unit has a camera, the display panel has a first region to a fourth region, the third region is between the first region and the second region and has a function of bending about an axis extending in one direction, the first region displays in a first direction, the second region displays in a second direction, the fourth region displays in a third direction, the first direction is opposite to the third direction, the camera photographs in the third direction, the first direction intersects the second direction by bending the third region, in a first state where the surface of the first region faces the surface of the second region, the first region to the third region are not displayed, and the fourth region has a function of displaying an image captured by the camera. An information processing apparatus.

2. In Claim 1, as the third region bends, it draws a curve in a plane crossing the axis, the curve has an inflection point. An information processing apparatus.

3. In Claim 1 or Claim 2, the detection unit further has a photoelectric conversion element, the photoelectric conversion element detects the amount of light incident from the second direction and detects the first state. An information processing apparatus.

4. In Claims 1 to 3, in a second state where the surface of the first region does not face the surface of the second region, the first region to the third region or the fourth region has a function of displaying an image captured by the camera. An information processing apparatus.

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