electronic machines

Abstract

To provide an electronic apparatus having a flexible display panel.SOLUTION: The electronic apparatus includes a display panel, a first component, a movable module and a housing. The housing includes a first movable part, a second component and a third component. The third component is provided with a first space for storing the first component. The display panel includes a display part. The display part includes a first region, a second region and a third region. The first region is fixed to the second component. The second region is fixed to the first component stored in the third component. The movable module has a function of maintaining a first angle formed by the first movable part together with the second component and the third component. The third region positioned between the first region and the second region has a function of forming a curved surface according to the first angle. The first component slides and moves in the first space according to the first angle.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] One aspect of the present invention relates to an electronic device including a flexible display panel.

[0002] Note that one embodiment of the present invention is not limited to the above technical fields. The technical field of one aspect of the present invention relates to a product, a method, or a manufacturing method. , machine, manufacture, or composition of matter In particular, one embodiment of the present invention is a semiconductor device, a display device, a light-emitting device, a power storage device, a memory device, The present invention relates to a method for driving these devices or a method for manufacturing these devices.

[0003] In this specification and the like, a semiconductor device is a device that can function by utilizing semiconductor characteristics. It refers to a semiconductor element, circuit, or device, etc. Examples include a transistor, a diode, and other semiconductor elements. In another example, a circuit having a semiconductor element is a semiconductor device. As another example, a device including a circuit having a semiconductor element is a semiconductor device. do. [Background technology]

[0004] Mobile devices such as smartphones, tablets, e-books, and laptops The display panels of mobile devices are becoming more and more popular, and they are able to display more information. There is a demand for display panels that are suitable for reducing the pixel size. This has increased the amount of information that can be displayed on the same display area. There is a demand for larger screens with the portability of mobile devices. .

[0005] As a form of mobile device, folding is one way to make the screen larger while maintaining portability. Foldable electronic devices have been proposed. Foldable electronic devices have two or more display panels. Electronic devices equipped with such a display panel or electronic devices using a flexible display panel have been proposed.

[0006] For example, Patent Document 1 discloses the configuration of an electronic device using a flexible display. It is being done. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-243588 Summary of the Invention [Problem to be solved by the invention]

[0008] In mobile devices, flexible displays are one way to display large amounts of information and have large screens. However, there are many proposals for foldable electronic devices with display panels that can be folded. The display panel that is folded is different from the display panel that is held flat. When the display panel is folded, the display panel may shift position.

[0009] Furthermore, in a flexible display panel, a large force is applied to the bending portion of the display panel. This causes a problem of the wiring of the display panel being broken.

[0010] When the display area of ​​the display panel is increased, the display panel has flexibility, so it can be easily exposed to the outside. There is a problem that the force exerted by the display panel may cause the display panel to fall off from the electronic device.

[0011] In view of the above problems, one aspect of the present invention has an object to provide an electronic device with a novel configuration. Alternatively, one embodiment of the present invention is a display device in which the radius of curvature of a flexible display panel is managed. Another object of the present invention is to provide a flexible display panel. An object of the present invention is to provide an electronic device in which a display panel is prevented from falling off the electronic device.

[0012] The description of these problems does not preclude the existence of other problems. It is not necessary for one embodiment to solve all of these problems. The subject matter will be self-evident from the description, drawings, claims, etc. It is possible to extract other issues from the drawings, claims, etc.

[0013] Note that the problems of one embodiment of the present invention are not limited to the above-listed problems. This does not preclude the existence of other problems. Problems not mentioned in this section are problems that a person skilled in the art would be able to solve by understanding the specification or can be derived from the descriptions in the drawings, etc., and can be extracted appropriately from these descriptions. One aspect of the present invention is to achieve at least one of the above-listed objects and / or other objects. It solves one problem. [Means for solving the problem]

[0014] One aspect of the present invention is an electronic device including a display panel, a first component, a movable module, and a housing. The device includes a housing having a first movable part, a second part, and a third part. The display panel has a first space for accommodating a first component. The display unit has a first area, a second area, and a third area. The second area is fixed to a first part housed in the first space. The first movable part connects the second part and the third part. The movable module The first movable part has a function of maintaining a first angle formed by the second part and the third part. The third region located between the first region and the second region is curved in accordance with the first angle. The first component slides in the first space at a first angle. It is a mobile electronic device.

[0015] In the above configuration, the movable module includes a fourth part, a fifth part, a sixth part, a seventh part, a first part, an eighth part, a second moving part, a third moving part, a fourth moving part, and a fifth moving part; The fourth part is connected to the first moving part and the fifth part. The fifth part is connected to the sixth part. The sixth part is connected to the seventh part. The seventh part is connected to the eighth part. The second movable part controls the second angle formed by the fourth part and the fifth part. The third movable part controls the third angle formed by the fifth part and the sixth part. The fourth movable part controls the fourth angle formed by the sixth part and the seventh part. The movable part controls the fifth angle formed by the seventh part and the eighth part. The seventh component has a second space for storing the seventh component. The seventh component has a second space for storing the eighth component. The eighth component is fixed to the third component and is inserted into the first cavity. It is preferable that the electronic device is fixed to a surface different from the surface on which the gap is provided.

[0016] In the above configuration, the third component has a structure that protrudes toward the first space. The first component has a cutout area. The cutout area is provided with a protruding structure. The size of the cutout area is set to be equal to or smaller than the size of the first space. It is preferable that the electronic device has a movable range of the first component that slides.

[0017] In the above-mentioned configuration, the housing further includes a ninth component. The display panel includes electronic components. The second part has a fourth region where the second part is mounted. The second part has a fourth region where the ninth part is mounted. The opening has a first width portion and a second width portion. and a portion of a second width, the first width being greater than the thickness of the display unit so that the display unit can pass through. The second width is set to a width that allows the portion of the display unit on which the electronic components are mounted to pass through. Electronics that are larger than the thickness are preferred.

[0018] In the above configuration, the sixth component has a seventh component that is not housed in the second space, and the seventh component If the eighth part is not stored in the third space, the fourth space is used for the fifth part, A part of the display panel formed by the sixth component and the seventh component is located within the fourth space. Electronic devices that do this are preferred.

[0019] In the above configuration, the sixth component stores the seventh component in the second space, and the seventh component When the product stores the eighth component in the third space, the display panel stores the fourth component, the fifth component, and the sixth component are positioned parallel to a part of each of the components and in contact with the display panel. I wish.

[0020] In the above structure, the display panel includes a transistor, and the transistor includes a semiconductor layer Electronic devices with polycrystalline silicon are preferred.

[0021] In the above structure, the display panel includes a transistor, and the transistor includes a semiconductor layer Electronic devices having metal oxides are preferred.

[0022] In each of the above structures, the display panel includes a transistor, and the transistor is a backgate. Electronic devices with ports are preferred. [Effects of the Invention]

[0023] One embodiment of the present invention can provide an electronic device with a novel structure. An aspect of the present invention is to provide a display panel in which the radius of curvature of the flexible display panel is controlled. Alternatively, one embodiment of the present invention is a method for preventing a flexible display panel from falling off an electronic device. It is possible to provide an electronic device that prevents the above.

[0024] The effects of one embodiment of the present invention are not limited to the effects listed above. This does not preclude the existence of other effects. Other effects may be affected by this item, as described below. The effects not mentioned in this section are obvious to a person skilled in the art from the description or can be derived from the descriptions in the drawings, etc., and can be extracted appropriately from these descriptions. One aspect of the present invention has at least the above-listed effects and / or other effects. Therefore, one aspect of the present invention is to provide the above-mentioned series of In some cases, it may not have the effect described. [Brief explanation of the drawings]

[0025] [Figure 1]1(A) and 1(B) are a cross-sectional view and a development view for explaining an electronic device. [Figure 2] 2(A) and 2(B) are a cross-sectional view and a development view for explaining the electronic device. [Figure 3] 3A to 3D are cross-sectional views illustrating electronic devices. [Figure 4] 4(A) and 4(B) are cross-sectional views illustrating an electronic device. [Figure 5] 5(A) to 5(E) are cross-sectional views illustrating electronic devices. [Figure 6] 6A to 6C are top views and development views illustrating electronic devices. [Figure 7] 7A to 7C are top views and development views illustrating electronic devices. [Figure 8] 8A to 8C are top views and development views illustrating electronic devices. [Figure 9] 9A to 9C are top views and development views illustrating electronic devices. [Figure 10] 10(A) and 10(B) are a top view and a development view of the display panel. [Figure 11] FIG. 11 is a cross-sectional view of the display panel. [Figure 12] 12 is a cross-sectional view of the display panel. [Figure 13] 13 is a cross-sectional view of the display panel. [Figure 14] 14A to 14C are block diagrams and circuit diagrams of a display panel. [Figure 15] 15A to 15D are circuit diagrams and timing charts of a display panel. [Figure 16] FIG. 16 is a diagram illustrating an electronic device. [Figure 17] FIG. 17 is a diagram illustrating the housing. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, embodiments will be described with reference to the drawings. It is to be understood that the invention may be practiced in various different ways without departing from the spirit and scope of the invention. It will be readily apparent to those skilled in the art that various modifications can be made to the form and details. Therefore, the present invention should not be construed as being limited to the description of the following embodiments.

[0027] Also, in the drawings, the size, layer thickness, or area may be exaggerated for clarity. Therefore, the scale is not necessarily limited to that shown. The drawings are merely schematic illustrations and are not limited to the shapes or values ​​shown in the drawings.

[0028] In addition, the ordinal numbers "first," "second," and "third" used in this specification refer to the constituent elements. It should be noted that this is added to avoid confusion and is not intended to limit the number.

[0029] In addition, in this specification, the terms "above" and "below" that indicate the position of components are used to indicate the position of components. The positional relationship is used for convenience in describing the structure with reference to the drawings. The relationship between the two components changes depending on the direction in which each component is depicted. The terms are not limited to those given above, and can be rephrased appropriately depending on the situation.

[0030] In this specification, a transistor includes a gate, a drain, and a source. It is an element having at least three terminals including a drain (drain terminal, drain A transistor is placed between the drain electrode and the source terminal. A current flows between the source and the drain through the channel forming region. In this specification, the channel region is a region through which a current can flow. This refers to the area where the flow occurs as follows.

[0031] The functions of the source and drain may differ depending on whether transistors with different polarities are used or whether the circuit This may happen when the direction of the current changes during operation. In the specification, the terms source and drain may be used interchangeably. do.

[0032] In addition, in this specification, "electrically connected" means "something that has some kind of electrical effect." This includes cases where the device is connected via a "of" is not subject to any particular restrictions as long as it allows the transmission and reception of electrical signals between connected objects. For example, "things that have some kind of electrical action" include electrodes, wiring, and transistors. It has various functions such as switching elements, resistors, inductors, capacitors, etc. This includes elements such as:

[0033] In this specification, "parallel" means that two straight lines are at an angle of -10° or more and 10° or less. Therefore, it includes cases where the angle is between -5° and 5°. "Perpendicular" means that two straight lines are arranged at an angle of 80° or more and 100° or less. Therefore, this also includes cases where the angle is between 85° and 95°.

[0034] In addition, in this specification and the like, the terms "film" and "layer" are interchangeable. For example, the term "conductive layer" can be changed to the term "conductive film." Or, for example, the term "insulating film" may be changed to "insulating layer." It may be possible to change the term to

[0035] (Embodiment 1) In this embodiment mode, an electronic device including a flexible display panel will be described with reference to FIGS. 9 will be used to explain.

[0036] The electronic device includes a flexible display panel, a first component, a movable module, and a folding device. The foldable housing includes a first movable part, a second movable part, and a In the following, for the sake of simplicity, the first movable part, the second movable part, and the third part are referred to as the first movable part, the third movable part, and the fourth movable part. If there is no specification of the second or third part, they will be collectively described as the housing. The first movable part connects the second part and the third part, and further connects the second part and the third part. For example, the first movable part may include a hinge, etc. It is preferable to use

[0037] The housing can be held in at least a first state or a second state. State 1 shows the case where the housing is folded, and the two different display areas of the display panel are in contact. Alternatively, the display directions of the display sections of the display panels face each other. The second state shows the case where the display panel is open, and the display portion is in the same orientation. The third state of the housing indicates a state in which the display is directed to the first state. In other words, the third state shows the state in which the display is partially curved. The third state is a state in which the voltage is maintained in the above-mentioned state. The third state is explained in detail in FIG. 3 or FIG. 4. In the first state, two different display areas of the display panel are in contact with each other or are displayed. When the display direction of the display unit of the display panel is facing each other, the user cannot see the display panel. Therefore, it is preferable that the display panel does not display the display data.

[0038] Furthermore, it is preferable that the third component has a first space for accommodating the first component. .

[0039] The display panel has a flexible display section, and the display section has a first region, a second region, and The second part is fixed to the first area, and the third part is fixed to the second area. The first part is fixed to the third part. The first part is not fixed in the first space and slides within the storage space. It is preferable that the first region and the second part, or the second region and the first part, are fixed via an organic resin layer. The organic resin layer functions as an adhesive layer. is preferred.

[0040] Next, the movable module will be described. The movable module has a first movable part and a second movable part. The first angle formed by the first part and the third part can be maintained. A third region located between the first and second regions can form a curved surface according to the first angle. The distance of the positional deviation of the display panel caused by the first angle is determined by the distance between the first component and the first space. is set to be equal to the sliding distance.

[0041] The movable module includes a fourth part, a fifth part, a sixth part, a seventh part, an eighth part, The fourth part has a second movable part, a third movable part, a fourth movable part, and a fifth movable part. , connected to the first movable part and the fifth part, and the fifth part is connected to the sixth part. The sixth part is connected to the seventh part. The seventh part is connected to the eighth part. The movable part can control the second angle formed by the fourth part and the fifth part. The third movable part can control the third angle formed by the fifth part and the sixth part. The fourth movable part controls the fourth angle formed by the sixth part and the seventh part. The fifth movable part controls the fifth angle formed by the seventh part and the eighth part. It can be controlled.

[0042] The sixth component has a second space for accommodating the seventh component. The component has a third space for accommodating an eighth component. The eighth component is attached to the third component. The second space is fixed to a surface different from the surface on which the first space is provided. The third space may be formed by providing a cutout area in the sixth part. This may be achieved by providing a cut-out area in the product.

[0043] Furthermore, it is preferable that the third component has a structure that protrudes toward the first space. The first component has a cutout area, and the cutout area has a protruding structure. In other words, the size of the notch area is set to be within the first space. This provides the range of movement within which the first part can slide.

[0044] The housing further includes a ninth component. The display panel includes a fourth component on which electronic components are mounted. The second part has an opening. The opening is connected to the second part and the ninth part. The display panel of the fourth area can be housed in the fifth space formed by the product. The mouth preferably has a first width and a second width. The second width is preferably larger than the thickness of the display unit so that the display unit can pass through. It is preferable that the thickness of the part on which the electronic component is mounted is larger than the thickness of the part so that the part can pass through. The fifth space is used to store batteries or printed circuit boards with electronic components mounted on them. The electronic components mounted in the fourth area are preferably FPCs, drivers, etc. The electronic component mounted in the fourth region is preferably an IC, a connector, or the like. It is preferable that the device is electrically connected to a printed circuit board on which the device is mounted. It is preferable that the material is flexible.

[0045] When the display panel is flexible, the radius of curvature r that the display panel can be bent is The curvature of the display panel is limited by the material and film thickness used. The radius r is the minimum radius of curvature that the display panel can be bent without breaking (hereinafter referred to as the radius of curvature It is necessary to control it so that it does not fall below r.

[0046] First, the case where the movable module maintains the first state will be described. The seventh part cannot be stored in the second space, and the eighth part can be stored in the third space of the seventh part. When not stored, the fifth part, the sixth part, and the seventh part form a fourth space. Therefore, in the first state, a part of the display panel is located within the fourth space. It is preferable that:

[0047] In the first state, the third region of the display panel is in a state where the display panel has a curvature radius smaller than r. It can be stored in the fourth space so that it does not become small. Therefore, the first state is maintained. In this case, the third region is controlled by the movable module so that the radius of curvature is not smaller than r. The display panel is housed in the fourth space so that it does not become smaller than the radius of curvature r. This damages the wiring, inorganic film, organic film, or organic resin film of the display panel. This can prevent the problem from occurring.

[0048] Next, a case where the movable module maintains the second state will be described. The seventh part is stored in the second space, and the eighth part is stored in the third space of the seventh part. When the display panel is attached to the fourth part, the fifth part, and the sixth part, Or the display panel is located parallel to the fourth part, the fifth part, and the sixth part, respectively. It is preferable that the material contacts a part of the material.

[0049] That is, the fourth component, the fifth component, and a part of the sixth component are surfaces that support the display panel. It is preferable that the sixth part, the seventh part, and the eighth part The component is disposed on the back surface of the third component and has a surface that is parallel to the third component. It is preferable that the side on which the first component is placed is the surface of the third component, and the eighth component is The fixed side is the back side of the third part.

[0050] Next, the electronic device 10 will be described in detail with reference to FIGS. 1 to 9. In FIG. 1(A), As an example, a cross-sectional view of an electronic device 10 is shown. The electronic device 10 includes a display panel 11, a component 24, and a 17, the components of the housing are indicated by solid lines. FIG. 17 is a diagram illustrating the components of the housing. The housing 27 shown in FIG. It has a movable part 26, a part 20, a part 20a, a part 21, a part 22, and a part 23.

[0051] The movable part 26 is made up of parts 25, 25a, 25b, 25c, and 25d. The parts 25a and 25b can rotate around the part 25 as the center. Part 25c fixes part 20 and part 25a, and part 25d fixes part 22 and part 25b. That is, the movable part 26 functions as a first hinge. The parts 20 and 25a and 25d can be connected by screws or the like. Similarly, the part 22 and the part 25b may be integrally formed. That's fine.

[0052] The component 22 is provided with a first space 22a for accommodating the component 24. The display device 1 has a flexible display unit. The display unit has a display area 11a, a display area 11b, and The display area 11a is fixed to the component 20a. b is fixed to the part 24 housed in the part 22. The component 24 is not fixed in the first space 22a, and slides within the first space 22a. It is preferable that the display area 11a and the component 20a, or the display area 11b, The component 1b and the component 24 are fixed via an organic resin layer. It can function as such.

[0053] In addition, in a part of the display area 11a, the component 20a, the display panel 11, and the component In addition, in a part of the display area 11b, the components 22, 21 are overlapped. It is preferable that the component 24, the display panel 11, and the component 23 overlap. The components 23 are arranged to surround the display areas 11a, 11b, and 11c, and the display panel It functions as a picture frame for 11.

[0054] The movable module 30 is configured to adjust the first angle formed by the movable portion 26 with the parts 20a and 22. The display area 11a is located between the display area 11b. 1c forms a curved surface according to the first angle. The position of the display panel generated according to the first angle The displacement distance is set to be the same as the distance that the component 24 slides through the first space 22a. .

[0055] Next, in FIG. 1(B), the configuration of the movable module 30 will be described in detail using an exploded view. The movable module 30 includes a part 30a, a part 31a, a part 32a, a part 33a, and a part 34a, movable portion 30b, movable portion 31b, movable portion 32b, and movable portion 33b.

[0056] The part 30a is connected to the movable part 26 and the part 31a. The part 31a is connected to the part 32a. Component 32a is connected to component 33a. Component 33a is connected to component 34a. will be done.

[0057] The movable part 30b controls the second angle formed by the part 30a and the part 31a. The movable part 31b controls the third angle formed by the part 31a and the part 32a. The movable part 33b controls the fourth angle formed by the part 32a and the part 33a. The fifth angle formed by the part 33a and the part 34a is controlled.

[0058] The component 32a is provided with a space 32c for accommodating the component 33a. A space 33c is provided for accommodating a component 34a. The component 34a is fixed to the component 22, and The part 34b is fixed to a surface different from the surface on which the space 22a is provided. For ease of explanation, the side on which the component 24 is placed is referred to as the surface of the component 22, and the side on which the component 34 is placed is referred to as the surface of the component 22. The side where the a is fixed may be described as the back side of the component 22. The space 33c may be formed by providing a cutout area in the part 33a. Alternatively, the insulating layer may be formed by providing a recessed region.

[0059] Furthermore, the component 22 has a structure 22b that protrudes toward the first space 22a. The part 24 preferably has a cutout area 24a, which is formed by the structure The structure 22b is positioned so as to be located within the cutout area 24a. The size of the first space 22a is the range of movement of the component 24 that slides in the first space 22a. 5 describes the relationship between the first angle, the cutout area 24a, and the structure 22b, and further, FIG. 6, the structure 22b and the cutout region 24a are shown in detail using a top view of the electronic device 10. I will explain in detail.

[0060] Next, the configuration of the electronic device 10 will be described in detail with reference to Fig. 2. Fig. 2(A) shows the housing 2 2A is a cross-sectional view of the display panel 7 when the display panel 7 is in the second state. The display panel has an area 11d. The display panel has an area 11d, a display area 11a, The display area 11b is formed by a continuous area. An opening 2 for storing the area 11d in a fifth space formed by the parts 20a and 21. The display panel 11 is flexible. However, the display area 11c is bent. It is necessary to control the area so that it does not become smaller than the minimum radius of curvature r of the display panel. Therefore, the component 20 has a sixth space 2 for accommodating the display area of ​​the region 11d. 0s2. In addition, the component 21a and the component 21b are preferably The display panel 11 preferably has a seventh space 21s for accommodating the components 21a, and part 21b may be provided so as to contact with each other in a seventh space 21s formed by the parts 21a and 21b. A part of 1a or part 21b may have an area that is not in contact with the display panel 11.

[0061] For example, when the components 21a and 21b are provided so as to be in contact with the display panel 11, The display panel 11 is stably fixed by the parts 21a and 21b. The component 21a or the component 21b has an area that is not in contact with the display panel 11. The seventh space 21s can absorb variations in the processing of the display panel 11. For example, When the thickness of the display panel in the area 11d varies, the seventh space 21s allows the display panel This can prevent the cable 11 from being compressed and breaking.

[0062] As will be described in detail with reference to FIG. 8, the opening 20s1 has a first width portion and a second width portion. The first width is preferably set to a value larger than the display width so that the display portion of the display panel 11 can pass through. The second width is preferably greater than the thickness of the area 11d where the electronic components are mounted. It is preferable that the thickness of the fifth space is larger than the thickness of the part so that the part can pass through. Although not shown in the figure, the battery or a printed circuit board with electronic components mounted on it may be The electronic components 50 mounted in the area 11d are preferably FPCs, drivers, etc. A driver IC or connector is preferable, and it is electrically connected to a printed circuit board on which electronic components are mounted. It is also preferable that the printed circuit board is flexible.

[0063] 2(B) shows the components used in the electronic device 10 in an exploded view. The electronic component 50 is arranged on the side opposite to the display direction of the display panel 11. 2(A), the electronic components 51 are arranged on the same side as the display surface of the display panel 11. That is, the terminal portion provided in the region 11d may be provided on the display surface or on a surface different from the display surface. It should be noted that the battery or electronic components mounted in the fifth space may be It is preferable to take appropriate measures depending on the layout of the printed circuit board.

[0064] In FIG. 2(B), it is preferable that the width of the display area 11c is greater than the distance πr. By making the width of the region 11c larger than the distance πr, the housing 27 can be moved from the first state to the second state. When the component 21a and the component 23 move, they can be prevented from coming into contact with each other. π represents the ratio of the circumference of a circle to its circumference, and the radius of curvature r is a positive value that does not include 0.

[0065] Next, the process by which the electronic device 10 transitions from the first state to the third state and then to the second state will be described. 3 and 4, the following description will be given. First, the movable portion 26 (see FIG. 1), the movable portion 30b, and the movable portion 31 The operations of the movable part 26, the movable part 32b, and the movable part 33b are defined as follows: The angle formed by the movable part 30a and the part 22 is defined as a first angle M1. The angle formed by the movable part 31a and the part 31b is defined as a second angle M2. The angle formed by the movable part 32a and the part 31a is defined as a third angle M3. The angle formed by the movable part 33b and the part 33a is defined as a fourth angle M4. The angle formed by 3a and component 34a is a fifth angle M5.

[0066] First, the first state in which the housing 27 of the electronic device 10 is folded will be described with reference to FIG. 3(A). 3, the explanation will be given by focusing on the movable module 30. FIG. 3D is an enlarged view of the movable module 30 of FIG.

[0067] When the housing 27 is in the first state, the component 32a accommodates the component 33a in the space 32c. The component 33a is not accommodated in the space 33c, and the component 34a is not accommodated in the space 33c. When the housing 27 is maintained in the first state, it is preferable that the second angle M2 be approximately vertical. It's nice.

[0068] When the housing 27 is in the first state, the component 31a is in the first state as shown in FIG. , part 32a, and part 33a form a fourth space 60, and It is preferable that a part of the display panel 11 is located inside the .

[0069] When the housing 27 is in the first state, the display area 11c is in the state where the display panel 11 is bent. The fourth space 60 can accommodate the radii of the light beams 100 and 102 so that the radii of the light beams 100 and 102 are not smaller than the radius of curvature r. When the body 27 is in the first state, the movable module 30 moves in the display area 1 of the display panel 11. It is possible to control the curvature radius r of the display panel 1c so that it does not become smaller than r. The display panel 11 is accommodated in the fourth space 60 so that the display panel 11 does not bend beyond the radius of curvature r. As a result, the wiring, inorganic film, organic film, organic resin film, etc. of the display panel 11 are destroyed. In order to more efficiently store the display area 11c in the fourth space 60, For this purpose, it is preferable that the display area 11a is fixed to the component 20a. The display panel 11 is fixed to the component 20a so that the display area 11c is positioned in the fourth space 6. It can be stored efficiently within 0.

[0070] Next, in FIG. 3B, as an example, when the first angle M1 is approximately 45 degrees (including 45 degrees), In FIG. 3(B), it is preferable that the second angle M2 is kept substantially perpendicular. Also, the third angle M3 is large, and the fourth angle M4 and the fifth angle M5 are small. By maintaining the second angle M2 substantially perpendicular, the third angle M3 to the fifth angle M5 are When the second angle M2 is not substantially perpendicular, the third angle M3 to the fifth angle M4 are changed. The M5 changes differently from the above.

[0071] Next, in FIG. 3C, as an example, the case where the first angle M1 is approximately vertical (including vertical) is shown. In FIG. 3(C), it is preferable that the second angle M2 is larger than that in FIG. 3(B). Also, the third angle M3 becomes smaller, and the fourth angle M4 and the fifth angle M5 become larger. Since the second angle M2 is smaller than that in FIG. 3B, the third angle M3 to the fifth angle M4 are When the second angle M2 is reduced, the third angle M3 to the The fifth angle M5 varies differently from the above.

[0072] Next, in FIG. 4A, as an example, the first angle M1 is approximately 135 degrees (including 135 degrees). In FIG. 4(A), the second angle M2 is larger than that in FIG. 3(C). It is preferable that the third angle M3 is large, and the fourth angle M4 and the fifth angle M5 are large. The second angle M2 is larger than that in FIG. 3(C), and the third angle M5 is smaller. The angles M3 to M5 vary.

[0073] Finally, in FIG. 4B, as an example, the first angle M1 is approximately 180 degrees (including 180 degrees). ) is shown. In other words, the housing 27 changes to the second state. , the second angle M2 becomes larger than that in FIG. 4(A) and becomes the maximum angle. The third angle M3 is also the maximum angle. The fifth angle M5 becomes smaller and becomes the minimum angle. The minimum angle is approximately 0 degrees (including 0 degrees). ) is shown. Therefore, the part 33a is stored in the part 34a, and the part 32a is stored in the part 3 The components 30a, 31a, and 32a are partly housed in the display panel 11. and can support the display panel 11. The part, part 33a, or part 34a is in contact with the back surface of the part 22 or is positioned parallel to the part 22. It is preferable that the device has a surface on which the device is placed.

[0074] 3(B), (C) and FIG. 4(A) show the housing 27 in the third state. When the housing 27 is in the second state or the third state, the display areas 11a to 11c are Display data can be displayed.

[0075] 3 and 4, the angles are approximately 0 degrees, approximately 45 degrees, approximately 90 degrees, approximately 135 degrees, or Although an example of approximately 180 degrees has been shown, the first angle M1 held by the housing 27 is not limited to the above. The first angle can be maintained at any angle between approximately 0 degrees and approximately 180 degrees. do.

[0076] Next, in FIGS. 5A to 5E, the first angle M1 and the notch area 22 of the part 24 are shown. The relationship between the protruding structure 22b of the component 22 and the protruding structure 4a will be described. For clarity, FIG. 5 shows only the movable portion 26, the structure 22b, the cutout region 24a, and the first space 22. 5, the position Pna closest to the movable part 26, the position Pb closest to the structure 22b The following description will be focused on the position Pnb in the first space 22a that is the furthest from the movable part 26. n is a positive integer greater than or equal to 1.

[0077] The size and width of the component 24 do not change. The position of the protruding structure 22b provided on the part 22 is not changed. The position where the structure 22b is placed does not change. Also, the structure 22b has a width S1 from the center of the structure 22b. The figure shows an example in which the cross section of the structure is semicircular, but it can also be a columnar structure. The structure 22b may have any shape and is not limited to any particular shape. For example, when forming the first space 22a in the part 22, By reducing the number of parts, the cost of parts for electronic devices can be reduced. In addition, when the part 24 has a protruding structure, the cutout area The region may be a configuration that the part 22 has.

[0078] In FIG. 5A, when the housing 27 maintains the first state, the first angle M1 is approximately 0 degrees. The component 22 has a first space 22a for accommodating the component 24, and The part 24 can slide in the first space 22a. The first angle M1 of the housing 27 is changed to the display area 11c. A positional shift occurs, and the position of the display area 11b moves. The display area 11b moves, and the component 24 slides according to the distance the display area 11b moves. The display area 11a is fixed to the component 20a up to the range of position L1. The positional relationship between the display areas 11a, 11b, and 11c is as shown in FIG. It is possible.

[0079] When the housing 27 is in the first state, the curved surface of the display area 11c is smaller than the minimum curvature radius r. It is preferable to control the display area 11a so that it does not become smaller. When the display area 11c is in contact with or faces the display area 11b, the display area 11c is a curved surface having a radius of curvature greater than r. Therefore, a part of the display area 11b is formed at a distance of twice the radius of curvature r ( In other words, if the display area 11c has the same radius of curvature as r, By forming a larger curved surface, a part of the display area 11b and the display area 11c , a positional deviation occurs.

[0080] When the housing 27 is maintained in the first state, the distance caused by the displacement is the first space The distance that the part 24 housed in the movable motor 22a slides is the same as the distance that the part 24 slides. The module 30 can control the display area 11c so that it does not become smaller than the radius of curvature r. In addition, the protruding structure 22b of the part 22 and the notch of the part 24 The side surface of the region 24a that is farther from the movable portion 26 comes into contact with the region 24a, and the region 24a slides toward the movable portion 26. The movable range of the part 24 is limited. At the position P1a closest to the movable portion 26, the movable range of the sliding movement of the part 24 is not limited. Therefore, it is preferable to determine the movable range of the sliding movement of the part 24 as follows. By managing the curvature of the display panel 11, it is possible to control the curvature of the display panel 11 so that it does not become smaller than the curvature radius r. The display area 11b and the part 24 to which the display area 11b is fixed are movable part 2. It is preferable that the sliding movement is made to positions P1a and P1b close to 6.

[0081] Next, in FIG. 5(B), a case where the first angle M1 changes from approximately 0 degrees to approximately 45 degrees will be described. The positional deviation occurring in the display panel 11 is determined by the position of the display panel 11 in accordance with the first angle M1. When the first angle M1 changes from approximately 0 degrees to approximately 45 degrees, the position of the display area 11b The display area 11c slides a distance d. The part 24 to which the part 11b is fixed is located at a position close to the movable part 26, and the part 24 is located at a position P1a to a position P2a. At a position far from the movable part 26, the movable part 26 slides from the position P1b to the position P2b. Move.

[0082] Next, FIG. 5C illustrates the case where the first angle M1 changes from approximately 0 degrees to approximately 90 degrees. When the first angle M1 changes from approximately 0 degrees to approximately 90 degrees, the display area 11b, the display area The display area 11c slides a distance 2d. The part 24 to which the movable part 26 is fixed slides from a position P1a to a position P3a at a position close to the movable part 26. The sliding movement occurs from position P1b to position P3b at a position far from the movable part 26. do.

[0083] Next, in FIG. 5(D), the first angle M1 changes from approximately 0 degrees to approximately 135 degrees. When the first angle M1 changes from approximately 0 degrees to approximately 135 degrees, the display area 11b, the display The display area 11c slides a distance 3d. The part 24 to which the movable part 26 is fixed is located between the position P1a and the position P4a. At a position far from the movable part 26, the movable part 26 slides from the position P1b to the position P4b. Move.

[0084] When the first angle M1 is greater than approximately 90 degrees and smaller than approximately 180 degrees, the position L1 is This is because the display panel is flexible and the position of the display may be shifted. This is because a stress acts on the panel 11 in a direction away from the movable portion 26 with the position L as the base point.

[0085] Next, in FIG. 5(E), the first angle M1 changes from approximately 0 degrees to approximately 180 degrees. That is, when the first angle M1 reaches approximately 180 degrees, the housing 27 is in the second state. When the first angle M1 changes from approximately 0 degrees to approximately 180 degrees, the display area 11b, the display The display area 11c slides a distance 4d. The part 24 to which the movable part 26 is fixed is located between the position P1a and the position P5a. At a position far from the movable part 26, the movable part 26 slides from the position P1b to the position P5b. When the first angle M1 reaches approximately 180 degrees, the display panel 11 forms a flat surface. Therefore, all of the positional deviations occurring in each of FIGS. 5(A) to 5(D) are eliminated.

[0086] Next, the details of the electronic device 10 will be described with reference to FIG. 6. 6(B) is a top view of the slave device 10, FIG. 6(B) is a development view of the movable module 30, and FIG. 6(C) is a 6 to 9, the same reference numerals are used to denote the same components. The description of the attached configuration will be omitted.

[0087] First, a top view of the electronic device 10 will be described with reference to FIG. 2(A) is a top view of the electronic device 10 described in FIG. a, part 21b, part 22, or part 23 are fixed by a plurality of fixtures 40. For example, if a screw or the like is used as the fixing device 40, two or more pieces can be easily fixed. can fix two or more parts. Each part can fix multiple parts together. This can provide the effect of simplifying the assembly process and reducing the number of parts. do.

[0088] The movable part 26 is composed of a part 25, a part 25a, and a part 25b. The part 25a is fixed to the part 20, and the part 25b is fixed to the part 22. It is preferable that the movable module 30 is disposed on the outside of both ends of the movable part 26. The movable module 30 may be disposed in the

[0089] The components 23, 21a, and 21b function as a frame. When the display panel 11 is flexible, the components 22, 24, the display area 11b of the display panel 11, The display area 11b is fixed to the component 24, and the display area 11b overlaps with the component 23. This can prevent the display panel 11 from falling off the frame.

[0090] 6B has the same configuration as the movable module 30 described in FIG. 1B, so the details are not shown. The component 34a only needs to be connected to a part of the component 33a. In FIG. 6(A), the part 34a is fixed to the part 33a in two areas. The movable parts 30b, 31b, 32b, and 33b are connected by using hinges or the like. For example, the movable part 30b is preferably connected to the part 30a in two areas. The movable part 31b has two areas, part 31a and part 32. The movable part 32b is fixed to the part 32a and the part 33a in two areas. The movable part 33b is fixed in two areas to the part 33a. It is fixed to part 34a.

[0091] For FIG. 6(C), the explanation of the electronic device 10 explained in FIG. 2(A) can be taken into consideration. The component 20a accommodates the region 11d in a fifth space formed by the components 20 and 20a. The component 21b has an opening 20s1 for receiving the display panel 11 and the component 21a. , and preferably in contact with the component 20.

[0092] In FIG. 7(A), an electronic device 10A different from that in FIG. 6(A) will be described. In the example shown in FIG. 1, the part 21 is formed as a single part. By reducing the number of parts, the fixture 40 The part 20a has the region 11d as a part. 20 and an opening 20s1 for receiving the fifth space formed by the part 20a. Furthermore, the component 21 preferably contacts the display panel 11 and the component 20a.

[0093] In FIG. 7C, an opening 20s1 is provided which is wide enough to allow the electronic component 50 to pass through. It is preferable that the component 21 is disposed at a position overlapping the opening 20s1.

[0094] In FIG. 8(A), an electronic device 10B different from that in FIG. 7(A) will be described. The part 20a fits the area 11d into a fifth space formed by the part 20 and the part 20a. The component 21 has an opening 20s3 for receiving the display panel 11 and the component 20. It is preferable that the component 21 contacts with a. In Fig. 8, the component 21 is shown as a transparent component.

[0095] The opening 20s3 has a first width through which the thickness S3 of the display part of the display panel 11 passes and a second width through which the thickness S3 of the electronic part It is preferable that the second width S4 is a width that passes through the thickness of the product 50. The opening 20s3 has a first width S3 and a second width S4. , the component 20a can support the display panel 11 over a wide area. 4, the display panel 11 can be mounted with the electronic device 10B This makes it easier to assemble the device.

[0096] In FIG. 9(A), an electronic device 10C different from that in FIG. 7(A) will be described. In FIG. 9(C), the component 20a has an opening 20s4. A detailed explanation will be given.

[0097] In the electronic device 10C, the electronic component 52 mounted in the region 11d is placed in the opening 20s4. The display panel 11 is electrically connected to an electronic component 53 via an electronic component 52. For example, the electronic component 52 or the electronic component 53 may be a connector or the like. Since the panel 11 is electrically connected to the electronic component 53 via the electronic component 52, the region 11d is The curved surface may not be included. By not including a curved surface, it is possible to omit the control of the radius of curvature. In addition, the adhesion between the display panel 11 and the component 21 can be improved. This makes it easier to assemble the device 11C.

[0098] By using FIGS. 1 to 9, a foldable electronic device with a novel configuration can be provided. Furthermore, the electronic device can control the radius of curvature of the flexible display panel. As a method for controlling the radius of curvature of the display panel, the movable module 30 and the component 24 are used. This allows a part of the display panel to slide, and the position that occurs when the display panel has a curved surface is reduced. The display panel can move the same distance as the displacement. The curved surface of the panel prevents the display panel from being damaged by stress caused by the curved surface. In addition, the display panel can be prevented from falling off from the electronic device. Equipment can be provided.

[0099] As described above, the structures and methods described in this embodiment mode may be appropriately combined with the structures and methods described in other embodiments. They can be used in combination.

[0100] (Embodiment 2) In this embodiment, an example of the display panel illustrated in the above embodiment will be described.

[0101] [Configuration example] 10A shows a top view of a display panel 700. The display panel 700 is made of a sealing material 7 The first substrate 701 and the second substrate 705 are bonded together by a wire 12. In the area sealed by the plate 701, the second substrate 705, and the sealant 712, A pixel section 702, a source driver 704, and a gate driver 706 are provided on a substrate 701. The pixel portion 702 is provided with a plurality of display elements.

[0102] In addition, an FPC 716 (FP C: Flexible printed circuit) is connected to the terminal portion 708 The FPC 716 is provided to connect the pixel to the terminal portion 708 and the signal line 710. Various signals are input to each of the output section 702, the source driver 704, and the gate driver 706. Supplied.

[0103] A plurality of gate drivers 706 may be provided. The source driver 704 is formed separately on a semiconductor substrate or the like and packaged. The IC chip may be mounted on the first substrate 701 or on the FPC 702. 16. The IC chip can be mounted on the LCD panel 16. It can be mounted on a surface (back side) different from the display surface.

[0104] The pixel section 702, the source driver 704, and the gate driver 706 each include a transistor. It is possible.

[0105] Examples of display elements provided in the pixel portion 702 include a liquid crystal element and a light-emitting element. The liquid crystal elements used include transmissive liquid crystal elements, reflective liquid crystal elements, and semi-transmissive liquid crystal elements. In addition, the light emitting element can be a micro LED (Light Emitting Diode). ing Diode), OLED (Organic LED), QLED (Quantu Examples of such light-emitting devices include self-luminous light-emitting elements such as m-dot LEDs and semiconductor lasers. Shutter type or optical interference type MEMS (Micro Electro Mechanical Systems) ical Systems), microcapsules, electrophoresis, electro Using display elements that use the wetting method or electronic liquid powder method, etc. It is also possible to do so.

[0106] In FIG. 10B, the terminal portion 708 of the display panel 700 shown in FIG. 10A and the F FIG. 10B shows the connection of the pixel section that displays the display data. The terminal portion 708 can be exposed on the rear surface of the terminal portion 702 by using a through electrode. 08 and FPC716 connections use an anisotropic conductive film containing conductive particles CP with a diameter of approximately 3 μm. The terminal section 708 is connected to a driver IC or a connector. Good too.

[0107] [Cross-section example] In the following, a configuration using a liquid crystal element and an EL element as a display element will be described with reference to FIGS. 11 to 13 are the same as those shown in FIG. 11 and 12 are cross-sectional views taken along the line QR. FIG. 13 shows a configuration using an EL element.

[0108] [Explanation of common parts of the display panel] The display panel 700 shown in FIGS. 11 to 13 includes a wiring portion 711 and a pixel portion 702. The wiring section 711 includes a signal line, a source driver 704, and a terminal section 708. The pixel portion 702 includes a transistor 750 and a capacitor 790. The source driver 704 includes a transistor 752. In FIG. This shows the case where there is no

[0109] As an example, the transistors 750 and 752 are highly purified and have oxygen vacancies. The transistor has a metal oxide in a semiconductor layer in which the formation of a metal oxide is suppressed. Therefore, the retention time of electrical signals such as image signals can be extended, and the write interval is Therefore, the frequency of refresh operations can be reduced, resulting in lower power consumption. Hereinafter, a transistor having a metal oxide in the semiconductor layer will be referred to as an O It is called an S transistor.

[0110] The transistor used in this embodiment has relatively high field-effect mobility; For example, if such a transistor capable of high speed driving is used in a display panel, By using this, the switching transistor in the pixel section and the driver transistor used in the drive circuit section can be The transistor can be formed on the same substrate.

[0111] That is, a semiconductor device formed from a silicon wafer or the like is used as a separate driving circuit. Since there is no need to use a pixel electrode, the number of components in the semiconductor device can be reduced. However, by using transistors that can be driven at high speed, high-quality images can be provided. Cut.

[0112] Note that various types of transistors can be used as the transistor. There is no limitation on the type of transistor used. For example, amorphous silicon, polycrystalline silicon, Non-crystalline silicon, such as microcrystalline (also called semi-amorphous) silicon, A thin film transistor (TFT) having a single crystal semiconductor film can be used. There are various advantages to using silicon dioxide. For example, it can be grown at a lower temperature than single crystal silicon. This allows for reduction in manufacturing costs and the use of larger manufacturing equipment. Therefore, it is possible to manufacture a large number of display panels at the same time. Furthermore, since the manufacturing temperature is low, the Therefore, a weak substrate can be used. The transistors on the substrate can be used to transmit light through the display element. Alternatively, since the film thickness of the transistor is thin, it is possible to control the A part of the film that forms the reflective layer can transmit light. Therefore, the aperture ratio can be improved. can.

[0113] In addition, when producing polycrystalline silicon, by using a catalyst (such as nickel), It is possible to further improve the crystallinity and manufacture transistors with good electrical characteristics. As a result, the gate driver circuit (scanning line driver circuit) and the source driver circuit (signal line driver circuit) ), signal processing circuits (signal generation circuit, gamma correction circuit, DA conversion circuit, etc.) are integrated on the board It can be formed.

[0114] When manufacturing microcrystalline silicon, a catalyst (such as nickel) is used to This further improves the crystallinity, making it possible to manufacture transistors with good electrical characteristics. When this happens, the crystallinity can be improved by simply applying heat treatment without laser irradiation. As a result, part of the source driver circuit (analog switch, etc.) and the gate driver The driver circuit (scanning line driver circuit) can be formed integrally on the substrate. Therefore, if laser irradiation is not performed, unevenness in the crystallinity of the silicon can be suppressed. Therefore, an image with improved quality can be displayed.

[0115] However, polycrystalline silicon and microcrystalline silicon can be produced without using a catalyst (such as nickel). It is possible to do so.

[0116] In addition, improving the crystallinity of silicon to polycrystalline or microcrystalline can improve the overall panel performance. It is desirable to perform this in a partial area of ​​the panel, but it is not limited to this. The crystallinity of the crystalline silicon may be improved. For example, the peripheral circuit area, which is an area other than the pixel area, can be selectively irradiated. Alternatively, the laser light may be irradiated only to the gate driver circuit, the source driver circuit, and the Alternatively, the laser light may be irradiated only to a part of the source driver circuit ( For example, the laser light may be irradiated only on the area of ​​the analog switch. It is possible to improve the crystallization of silicon only in areas where high-speed operation of the circuit is required. Since there is little need for high-speed operation in the pixel area, there is no problem even if the crystallinity is not improved. The pixel circuit can be operated without any problem. The manufacturing process can also be shortened, improving throughput and reducing manufacturing costs. In addition, the number of manufacturing devices required is reduced, which reduces manufacturing costs. This can be done.

[0117] The capacitor 790 shown in FIGS. 11 and 13 has the same semiconductor layer as the transistor 750. a lower electrode formed by processing a single film and having a low resistance, and a source electrode or a drain electrode; and an upper electrode formed by processing the same conductive film. Between them, two insulating films are provided to cover the transistor 750. 90 is a laminated structure in which an insulating film that functions as a dielectric film is sandwiched between a pair of electrodes. .

[0118] In addition, a planarization insulating film is formed on the transistor 750, the transistor 752, and the capacitor 790. A veneer 770 is provided.

[0119] The transistor 750 included in the pixel portion 702 and the transistor 750 included in the source driver 704 For example, a transistor having a different structure from that of the transistor 752 may be used. A top-gate transistor is used on one side, and a bottom-gate transistor is used on the other side. The source driver 704 may be replaced with the gate driver circuit unit. It may be possible.

[0120] The signal line 710 is the same as the source and drain electrodes of the transistors 750 and 752. In this case, if a low-resistance material such as a material containing copper is used, the wiring This is preferable because it reduces signal delays caused by line resistance and enables display on a large screen.

[0121] The terminal portion 708 includes a connection electrode 760 , an anisotropic conductive film 780 , and an FPC 716 . The connection electrode 760 is electrically connected to a terminal of the FPC 716 via an anisotropic conductive film 780. Here, the connection electrode 760 is connected to the source electrodes of the transistors 750 and 752 and It is formed from the same conductive film as the drain electrode and the like.

[0122] The first substrate 701 and the second substrate 705 may be, for example, a glass substrate or a plastic substrate. A flexible substrate such as a plastic substrate can be used.

[0123] On the second substrate 705 side, there are a light-shielding film 738, a colored film 736, and an insulating film in contact with these. A velum 734 is provided.

[0124] [Example of a display panel configuration using liquid crystal elements] The display panel 700 shown in FIG. 11 includes a liquid crystal element 775. The liquid crystal element 775 is a conductive A layer 772, a conductive layer 774, and a liquid crystal layer 776 therebetween. The conductive layer 772 is provided on the second substrate 705 side and functions as a common electrode. The conductive layer is electrically connected to a source electrode or a drain electrode of the transistor 750. A film 772 is formed on the planarization insulating film 770 and functions as a pixel electrode.

[0125] The conductive layer 772 can be formed using a material that transmits or reflects visible light. As the light-transmitting material, for example, an oxide material containing indium, zinc, tin, etc. is used. As the reflective material, for example, a material containing aluminum, silver, etc. may be used. good.

[0126] If a reflective material is used for the conductive layer 772, the display panel 700 becomes a reflective liquid crystal display panel. On the other hand, when a light-transmitting material is used for the conductive layer 772, a transmissive liquid crystal display panel is obtained. In the case of a reflective liquid crystal display panel, a polarizing plate is provided on the viewing side. In the case of a panel, a pair of polarizing plates are provided to sandwich the liquid crystal element.

[0127] The display panel 700 shown in FIG. 12 includes a liquid crystal element 7 of a horizontal electric field type (for example, FFS mode). 75 is formed on a conductive layer 772 with an insulating layer 773 interposed therebetween. A conductive layer 774 is provided. An electric field generated between the conductive layer 772 and the conductive layer 774 , the alignment state of the liquid crystal layer 776 can be controlled.

[0128] In FIG. 12, a holding container is formed by a laminated structure of a conductive layer 774, an insulating layer 773, and a conductive layer 772. Therefore, there is no need to provide a separate capacitance element, and the aperture ratio can be increased. It is possible.

[0129] Although not shown in FIGS. 11 and 12, an alignment film is provided in contact with the liquid crystal layer 776. In addition, optical members such as polarizing members, phase difference members, and anti-reflection members (optical substrates) may be used. A light source such as a backlight or a sidelight may be provided as appropriate.

[0130] The liquid crystal layer 776 may include a thermotropic liquid crystal, a low molecular weight liquid crystal, a high molecular weight liquid crystal, a polymer dispersion liquid, or the like. Crystals, polymer network type liquid crystals, ferroelectric liquid crystals, antiferroelectric liquid crystals, etc. can be used. In addition, when the in-plane switching method is adopted, a liquid crystal that exhibits a blue phase without using an alignment film may be used. stomach.

[0131] The liquid crystal element mode is TN (Twisted Nematic) mode, VA (Vertical Alignment) mode, IPS (In-Plane-S witching) mode, FFS(Fringe Field Switching) mode, ASM (Axially Symmetric aligned Micro- cell) mode, OCB (Optical Compensated Birefri) ngence) mode, ECB (Electrically Controlled B You can use modes such as reference mode and guest-host mode.

[0132] [Display Panel Using Light-Emitting Elements] The display panel 700 shown in FIG. 13 includes a light-emitting element 782. The light-emitting element 782 is a conductive The layer 772, the EL layer 786, and the conductive film 788 are included. The EL layer 786 is made of an organic compound or has inorganic compounds such as quantum dots.

[0133] Materials that can be used for the organic compound include fluorescent materials and phosphorescent materials. In addition, materials that can be used for quantum dots include colloidal quantum dot materials. materials, alloy-type quantum dot materials, core-shell-type quantum dot materials, core-type quantum dot materials, etc. Examples include:

[0134] The display panel 700 shown in FIG. 13 includes a planarization insulating film 770 and a conductive layer 772. Here, the light-emitting element 782 has a light-transmitting conductive film 788. The light-emitting element 782 emits light toward the conductive layer 772. a bottom emission structure in which light is emitted from both the conductive layer 772 and the conductive film 788; A dual emission structure may be used.

[0135] The colored film 736 is provided at a position overlapping the light emitting element 782, and the light blocking film 738 is an insulating film. 730, the lead wiring portion 711, and the source driver 704. The colored film 736 and the light-shielding film 738 are covered with an insulating film 734. The space between the element 782 and the insulating film 734 is filled with a sealing film 732. In the case where the pixels are formed in an island shape or the pixel rows are formed in a stripe shape, that is, the pixels are formed by separate coatings, In this case, the colored film 736 may not be provided.

[0136] [Configuration example of providing an input device on a display panel] An input device may be provided on the display panel 700 shown in FIGS. The device may be, for example, a touch sensor.

[0137] For example, the sensor types include capacitance type, resistive film type, surface acoustic wave type, and infrared type. Various methods can be used, such as a digital, optical, or pressure-sensitive method. They may also be used in combination.

[0138] The touch panel has a so-called in-cell structure, in which the input device is formed inside a pair of substrates. A touch panel of the type in which an input device is formed on the display panel 700, that is, a so-called on-cell type touch panel. A so-called out-cell type touch panel that is used by attaching it to a panel or a display panel 700 etc.

[0139] The configuration examples exemplified in this embodiment and the corresponding drawings etc. are at least partly The above can be implemented in appropriate combination with other configuration examples or drawings, etc.

[0140] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0141] (Embodiment 3) In this embodiment mode, a display panel will be described with reference to FIG.

[0142] The display panel shown in FIG. 14A includes a pixel portion 702, a driver circuit portion 504, and a protection circuit 706. The protection circuit 791 may be omitted. stomach.

[0143] When OS transistors are used as transistors in the pixel portion 702 and the driver circuit portion 504, In addition, an OS transistor may also be used for the protection circuit 791.

[0144] The pixel section 702 is a plurality of pixels arranged in X rows and Y columns (X and Y are each independently a natural number of 2 or more). The display device has a plurality of pixel circuits 501 for driving a number of display elements.

[0145] The driving circuit unit 504 is a gate driver that outputs scanning signals to the gate lines GL_1 to GL_X. a source driver 706, which supplies data signals to the data lines DL_1 to DL_Y; 4. The gate driver 706 includes at least a shift register. The source driver 704 may be configured to include, for example, a plurality of analog switches. The source driver 704 is configured using a shift register or the like. That's fine.

[0146] The terminal section 707 is used to input power, control signals, image signals, etc. from an external circuit to the display panel. This refers to the part where terminals are provided for connecting the power supply to the power source.

[0147] When a potential outside a certain range is applied to the wiring to which the protection circuit 791 is connected, the protection circuit 791 The protection circuit 791 shown in FIG. For example, the scanning line GL, which is the wiring between the gate driver 706 and the pixel circuit 501, or the The data line DL is connected to the pixel circuit 501 and the data driver 704. can be.

[0148] The gate driver 706 and the source driver 704 are the same as the pixel section 702. The gate driver circuit or the source driver circuit may be provided on the substrate, or may be provided separately. A substrate (for example, a drive circuit substrate formed of a single crystal semiconductor film or a polycrystalline semiconductor film) Mounted on the board using COG or TAB (Tape Automated Bonding) The configuration may be such that:

[0149] In addition, the plurality of pixel circuits 501 shown in FIG. 14(A) may be, for example, The configuration shown in FIG.

[0150] The pixel circuit 501 shown in FIG. 14B includes a liquid crystal element 570, a transistor 550, and a capacitor. The pixel circuit 501 also includes a data line DL_n, a scanning line GL_ m, a potential supply line VL, etc. are connected.

[0151] The potential of one of the pair of electrodes of the liquid crystal element 570 is set appropriately according to the specifications of the pixel circuit 501. The orientation state of the liquid crystal element 570 is set by the written data. A common potential is applied to one of a pair of electrodes of the liquid crystal element 570 included in each of the pixel circuits 501. A common potential may be applied to the pair of liquid crystal elements 570 of the pixel circuits 501 in each row. One of the electrodes may be given a different potential.

[0152] The pixel circuit 501 shown in FIG. 14C includes transistors 552 and 554 and a capacitor. The pixel circuit 501 also includes a data line DL_n , scanning lines GL_m, potential supply lines VL_a, power supply lines VL_b, etc. are connected to the pixel electrodes GL_m.

[0153] A high power supply potential VDD is applied to one of the potential supply lines VL_a and VL_b. The other terminal is supplied with a low power supply potential VSS. The current flowing through the light-emitting element 572 is controlled in accordance with the potential applied to the light-emitting element 572. The brightness of the light emitted from 72 is controlled.

[0154] The configuration examples exemplified in this embodiment and the corresponding drawings etc. are at least partly The above can be implemented in appropriate combination with other configuration examples or drawings, etc.

[0155] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0156] (Fourth embodiment) In the following, a pixel circuit having a memory for correcting the gradation displayed in the pixel and a The display panel will be described.

[0157] [Circuit configuration] 15A shows a circuit diagram of the pixel circuit 400. The pixel circuit 400 includes a transistor T r1, a transistor Tr2, a capacitor C1, and a circuit 401. The wiring S1, the wiring S2, the wiring G1, and the wiring G2 are connected.

[0158] The transistor Tr1 has a gate connected to the wiring G1 and one of the source and drain connected to the wiring S1. The other terminal is connected to one electrode of the capacitor C1. The gate of the transistor Tr2 is The wiring G2, one of the source and drain is the wiring S2, and the other is the other electrode of the capacitor C1, and circuit 401, respectively.

[0159] The circuit 401 is a circuit including at least one display element. Representative examples include light-emitting elements such as organic EL elements and LED elements, and liquid crystal element, or MEMS (Micro Electro Mechanical System) ms) elements, etc. can be applied.

[0160] The node connecting the transistor Tr1 and the capacitor C1 is N1, and the transistor Tr2 and the circuit The node connecting to 401 is N2.

[0161] In the pixel circuit 400, the potential of the node N1 is set to Furthermore, by turning off the transistor Tr2, the node N2 In addition, when the transistor Tr2 is in the off state, the potential of the transistor Tr3 can be maintained. By writing a predetermined potential to the node N1 via the transistor Tr1, The potential of the node N2 can be changed according to the change in the potential of the node N1 due to capacitive coupling. can.

[0162] Here, one or both of the transistors Tr1 and Tr2 are provided with an OS transistor. Therefore, the extremely low off-current allows the nodes N1 and N2 to be The potential of the node N2 can be maintained for a long period of time. If the period is short (specifically, if the frame frequency is 30 Hz or higher), A transistor using a semiconductor such as silicon may also be used.

[0163] [Drive method example] Next, an example of a method of operating the pixel circuit 400 will be described with reference to FIG. (B) is a timing chart relating to the operation of the pixel circuit 400. For ease of understanding, various resistances such as wiring resistance, parasitic capacitances of transistors and wiring, The influence of the threshold voltage of the transistor and the like is not taken into consideration.

[0164] In the operation shown in FIG. 15B, one frame period is divided into a period T1 and a period T2. T1 is a period during which a potential is written to node N2, and T2 is a period during which a potential is written to node N1. It is a period.

[0165] [Period T1] In the period T1, a potential that turns on the transistor is applied to both the wiring G1 and the wiring G2. In addition, the wiring S1 is connected to a fixed potential V ref The first data is supplied to the wiring S2. Voltage V w supply.

[0166] The node N1 is connected to the line S1 via the transistor Tr1. ref is given Also, the node N2 is supplied with the first data potential V w is given Therefore, the potential difference V across the capacitance C1 w -V ref is maintained.

[0167] [Period T2] Subsequently, in a period T2, a potential is applied to the wiring G1 to turn on the transistor Tr1. A potential that turns off the transistor Tr2 is applied to the wiring G2. 2 Data potential V dataA predetermined constant potential is applied to the wiring S2, or a floating potential is applied to the wiring S3. It may also be used as a fingering.

[0168] The node N1 is supplied with a second data potential V data is given At this time, the second data potential V data Depending on the node The potential of N2 changes by a potential dV. That is, the circuit 401 has a first data potential Vw and In FIG. 15(B), dV is a positive value. Although the potential V is shown as a positive value, it may also be negative. data is the potential V r ef It may be lower.

[0169] Here, the potential dV is roughly determined by the capacitance value of the capacitor C1 and the capacitance value of the circuit 401. When the capacitance value of the capacitor C1 is sufficiently larger than the capacitance value of the circuit 401, the potential dV is Data potential V data The potential is close to

[0170] In this way, the pixel circuit 400 is a circuit including a display element that combines two types of data signals. Since the potential supplied to the line 401 can be generated, the gradation can be corrected in the pixel circuit 400. It will be possible to do this.

[0171] Furthermore, the pixel circuit 400 generates a potential that exceeds the maximum potential that can be supplied to the wirings S1 and S2. For example, when a light-emitting element is used, a high dynamic range ( In addition, when using liquid crystal elements, overdriving is possible. It is possible to realize drive, etc.

[0172] [Application example] [Example using liquid crystal element] The pixel circuit 400LC shown in FIG. 15C includes a circuit 401LC. has a liquid crystal element LC and a capacitor C2.

[0173] The liquid crystal element LC has one electrode connected to the node N2 and one electrode connected to the capacitor C2, and the other electrode connected to the Potential V com2 The capacitor C2 is connected to the wiring where the other electrode is at potential V com1 Connect with the wiring given.

[0174] The capacitor C2 functions as a storage capacitor. If the capacitor C2 is not required, it can be omitted. Cut.

[0175] The pixel circuit 400LC can supply a high voltage to the liquid crystal element LC, so that, for example, Overdrive operation allows for high-speed display, and liquid crystal materials with high drive voltage are used. In addition, by supplying a correction signal to the wiring S1 or wiring S2, The gradation can also be corrected according to the temperature and the deterioration state of the liquid crystal element LC.

[0176] [Example using light-emitting element] The pixel circuit 400EL shown in FIG. 15D includes a circuit 401EL. has a light-emitting element EL, a transistor Tr3, and a capacitor C2.

[0177] The transistor Tr3 has a gate connected to the node N2 and one electrode of the capacitor C2, and a source and a One of the drains is a wiring to which a potential VH is applied, and the other is one of the electrodes of the light-emitting element EL. The capacitor C2 is connected to the other electrode at a potential V com Connect with the given wiring The other electrode of the light-emitting element EL is at a potential V LConnect with the wiring given.

[0178] The transistor Tr3 has a function of controlling the current supplied to the light-emitting element EL. 2 functions as a storage capacitor. Capacitor C2 can be omitted if not required.

[0179] In this example, the anode side of the light-emitting element EL is connected to the transistor Tr3. However, a transistor Tr3 may be connected to the cathode side. H and electricity Place V L The value of can be changed as appropriate.

[0180] The pixel circuit 400EL emits light by applying a high potential to the gate of the transistor Tr3. Since a large current can be passed through the EL element, it is possible to realize, for example, HDR display. Furthermore, by supplying a correction signal to the wiring S1 or the wiring S2, the transistor It is also possible to correct variations in the electrical characteristics of Tr3 and the light-emitting element EL.

[0181] The circuit is not limited to the circuits shown in FIGS. 15(C) and 15(D), and may include other transistors, capacitors, etc. may be added.

[0182] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0183] (Embodiment 5) In this embodiment, an electronic device of one embodiment of the present invention will be described with reference to drawings.

[0184] The electronic device illustrated in FIG. 16 includes a housing and a display panel according to one embodiment of the present invention in a display portion. Therefore, by folding the housing, it is possible to maintain small size and portability, and it is also possible to The electronic device has a display area.

[0185] The electronic device of one embodiment of the present invention can have various functions. (still images, videos, text images, etc.) on the display, touch panel function, calendar functions such as displaying the date and time, and running various software (programs) Functions for transmitting data, wireless communication, and reading programs or data recorded on recording media etc.

[0186] The electronic device 200 functions as an input / output device 220. The device 200 includes a display unit 230, an input unit 240, and a detection unit 250. The detection unit 250 is an optical sensor. When the electronic device is in the first state, the detection value of the optical sensor is used. The display on the display unit 230 can be made non-displayable. The sensor 210 detects position information. It may be equipped with one or more of a location sensor, camera, temperature sensor, fingerprint sensor, etc. preferable.

[0187] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0188] (Embodiment 6) In this embodiment, a C This section explains the configuration of AC (Cloud-Aligned Composite)-OS. do.

[0189] CAC-OS is a type of metal oxide in which the elements constituting the metal oxide are 0.5 nm to 10 nm in size. Preferably, the material is unevenly distributed in a size range of 1 nm to 2 nm or in the vicinity thereof. In the following, we will consider the case where one or more metal elements are unevenly distributed in a metal oxide. The region having the metal element has a size of 0.5 nm or more and 10 nm or less, preferably 1 nm or more. A mixed state of particles with sizes of 2 nm or less or close to that size is also called a mosaic or patch state. .

[0190] The metal oxide preferably contains at least indium. In addition to these, aluminum, gallium, yttrium, and zinc are preferably contained. Sodium, copper, vanadium, beryllium, boron, silicon, titanium, iron, nickel, gel Al, zirconium, molybdenum, lanthanum, cerium, neodymium, hafnium, It contains one or more selected from the group consisting of tantalum, tungsten, and magnesium. It's fine.

[0191] For example, CAC-OS in In-Ga-Zn oxide (In- Ga-Zn oxide (which may be specifically referred to as CAC-IGZO) is an indium oxide (Hereinafter, InO X1 (where X1 is a real number greater than 0), or indium zinc oxide (Hereinafter, In X2 Zn Y2 O Z2 (X2, Y2, and Z2 are real numbers greater than 0) ) and gallium oxide (GaO X3 (where X3 is a real number greater than 0), or Gallium zinc oxide (Ga X4 Zn Y4 O Z4(X4, Y4, and Z4 must be greater than 0. The material is separated into mosaics, and the mosaic pattern is InO X1 , or In X2 Zn Y2 O Z2 The structure in which the SiO2 is uniformly distributed in the film (hereafter referred to as "cladding") It is also called udo-shaped.

[0192] In other words, CAC-OS is X3 The region where In is the main component and X2 Zn Y2 O Z2 , or InO X1 A composite metal oxide having a mixed structure with a region in which In this specification, for example, when the atomic ratio of In to the element M in the first region is , the atomic ratio of In to the element M in the second region is greater than the atomic ratio of In in the first region. The concentration of In is higher than in the region

[0193] IGZO is a common name and refers to a compound of In, Ga, Zn, and O. A typical example is InGaO3(ZnO) m1 (m1 is a natural number), or In (1 +x0) Ga (1-x0) O3(ZnO) m0 (-1≦x0≦1, m0 is an arbitrary number) Examples of such crystalline compounds include:

[0194] The crystalline compound has a single crystal structure, a polycrystalline structure, or a CAAC structure. The CAAC structure is a structure in which multiple IGZO nanocrystals have a c-axis orientation and are aligned in the ab plane. is a non-oriented connected crystal structure.

[0195] On the other hand, CAC-OS is a material structure of metal oxides. In a material composition containing a, Zn, and O, nanoparticles with Ga as the main component were observed in some areas. The region where In is observed as a nanoparticle and the region where In is observed as a nanoparticle are the main component are shown in the model. Therefore, in CAC-OS, The crystal structure is a secondary factor.

[0196] Note that CAC-OS does not include a laminated structure of two or more films with different compositions. For example, a structure consisting of two layers, one containing In as the main component and the other containing Ga as the main component, Not at all.

[0197] In addition, GaO X3 The region where In is the main component and X2 Zn Y2 O Z2 , or InO X1 but It may be difficult to observe the region that is the main component as a clear boundary.

[0198] Instead of gallium, aluminum, yttrium, copper, vanadium, and beryllium can be used. Aluminum, boron, silicon, titanium, iron, nickel, germanium, zirconium, molybdenum lanthanum, cerium, neodymium, hafnium, tantalum, tungsten, or magnesium If one or more selected elements such as sodium are included, CAC-OS will The region observed is a nanoparticle with the metal element as the main component, and a nanoparticle with In as the main component in part. The structure is such that the areas observed as particles and the areas observed as particles are randomly dispersed in a mosaic pattern. cormorant.

[0199] CAC-OS can be formed by, for example, a sputtering method without heating the substrate. When the CAC-OS is formed by a sputtering method, the following gas is used as the deposition gas: Any one selected from an inert gas (typically argon), oxygen gas, and nitrogen gas One or more of the oxygen gases may be used. The lower the ratio, the better. For example, the flow rate ratio of oxygen gas is set to 0% or more and less than 30%, preferably 0% It is preferable to set it to 10% or less.

[0200] CAC-OS is an X-ray diffraction (XRD) measurement method. When measured using one of the out-of-plane θ / 2θ scans In other words, from the X-ray diffraction measurement, no clear peaks are observed. It can be seen that no orientation in the ab plane direction or the c axis direction is observed in the fixed region.

[0201] In addition, the CAC-OS uses an electron beam with a probe diameter of 1 nm (also called a nanobeam electron beam). In the electron diffraction pattern obtained by irradiating the electron beam, a ring-shaped area of ​​high brightness (ring The electron diffraction pattern shows that the ring region is a region of the nucleus, and multiple bright spots are observed in the ring region. The crystal structure of CAC-OS has no orientation in the planar direction and cross-sectional direction. It can be seen that it has a c (nano-crystal) structure.

[0202] For example, in the CAC-OS of In-Ga-Zn oxide, energy dispersive X Energy Dispersive X-ray spectroscopy (EDX) EDX mapping obtained using scopy revealed that GaO X3 The region where is the principal component And, In X2 Zn Y2 O Z2 , or InOX1 The area where the main component is unevenly distributed and mixed. It can be confirmed that it has the structure shown in the figure.

[0203] CAC-OS has a structure different from that of IGZO compounds, in which metal elements are uniformly distributed. CAC-OS has different properties from GZO compounds. X3 The main components are and the region where In X2 Zn Y2 O Z2 , or InO X1 The region where is the principal component and The phases are separated into two, and the regions containing each element as the main component are arranged in a mosaic pattern.

[0204] Here, In X2 Zn Y2 O Z2 , or InO X1 The region where is the main component is GaO X3 This region has higher conductivity than the region where In is the main component. X2 Zn Y 2O Z2 , or InO X1 The carriers flow through the area where the main component is the metal oxide. Therefore, the conductivity of In is expressed as a X2 Zn Y2 O Z2 , or InO X1 The region where the main component is distributed in a cloud-like manner in the metal oxide provides high field-effect mobility. degree (μ) can be achieved.

[0205] On the other hand, GaO X3 The region where the main components are In X2 Zn Y2 O Z2 , or InO X This region has higher insulating properties than the region where GaO is the main component. X3etc. The main component is distributed in the metal oxide, which suppresses leakage current and provides good switching performance. This allows for switching operations.

[0206] Therefore, when CAC-OS is used in a semiconductor device, GaO X3 Insulation due to Sex and In X2 Zn Y2 O Z2 , or InO X1 The conductivity caused by the This results in a high on-state current (I on ) and high field-effect mobility (μ) can be done.

[0207] Furthermore, semiconductor devices using CAC-OS have high reliability. is ideal for various semiconductor devices including displays.

[0208] This embodiment mode can be implemented in appropriate combination with other embodiment modes.

[0209] In this specification, unless otherwise specified, the on-state current is the current that flows when a transistor is in the on-state. The on-state (sometimes abbreviated as on) refers to the drain current when the In this case, for an n-channel transistor, the voltage between the gate and source (V G ) is the threshold voltage Pressure (V th ) above, in a p-channel transistor, V G V th The following conditions For example, the on-current of an n-channel transistor is V G V th In the above case The on-current of a transistor is determined by the voltage between the drain and source (V D ) may depend on

[0210] Unless otherwise specified, in this specification, the off-state current refers to the current when a transistor is in an off state. The off state (sometimes abbreviated as "off") refers to the drain current when the In this case, for an n-channel transistor, V G V th lower than the p-channel transistor In Transistor, V G V th For example, in an n-channel transistor, The off-state current of the capacitor is V G V th The drain current of a transistor is The off-state current is V G Therefore, if the off-state current of a transistor is 10 - 21 A means that the off-state current of the transistor is less than 10 -21 V less than A G The value of It may be said that it exists.

[0211] The off-state current of the transistor is V D In this specification, Unless otherwise specified, the off-state current is V D The absolute value of is 0.1V, 0.8V, 1V, 1.2V, Available in 1.8V, 2.5V, 3V, 3.3V, 10V, 12V, 16V, or 20V It may also refer to a semiconductor device that includes the transistor. V to be D The term may refer to the off-state current at

[0212] Voltage refers to the potential difference between two points, and potential refers to the electrostatic field at a certain point. This refers to the electrostatic energy (electrical potential energy) of a unit charge in a particle. However, in general, the potential difference between the potential at a certain point and a reference potential (for example, ground potential) This is simply called potential or voltage, and potential and voltage are often used synonymously. Therefore, in this specification, unless otherwise specified, the term "potential" may be read as "voltage." , voltage may be read as potential.

[0213] In this specification, when it is explicitly stated that X and Y are connected, The case where X and Y are electrically connected and the case where X and Y are directly connected are It is assumed that the invention is disclosed in the specification, etc.

[0214] Here, X and Y are the object (for example, a device, an element, a circuit, a wiring, an electrode, a terminal, a conductive film, layer, etc.).

[0215] An example of a direct connection between X and Y is a circuit that allows electrical connection between X and Y. The elements that function as When X and Y are connected without an intermediate element (diode, display element, light-emitting element, load, etc.), It is a combination.

[0216] An example of the case where X and Y are electrically connected is The elements that function as One or more diodes, display elements, light-emitting elements, loads, etc.) are connected between X and Y. The switch can be in a conducting state (ON state) or a non-conducting state (OFF state). ) and has the function of controlling whether or not current flows. It has the function of selecting and switching the path for the current. When X and Y are connected to each other, this includes the case where X and Y are directly connected. [Explanation of symbols]

[0217] C1: Capacitor, C2: Capacitor, G1: Wiring, G2: Wiring, S1: Wiring, S2: Wiring, Tr1 :Transistor, Tr2:Transistor, Tr3:Transistor, 10:Electronic device, 10 A: Electronic device, 10B: Electronic device, 10C: Electronic device, 11: Display panel, 11a: Display Area, 11b: display area, 11c: display area, 11C: electronic device, 20: component, 20a: Part, 20s1: opening, 20s2: space, 20s3: opening, 20s4: opening, 21 : Parts, 21a: Parts, 21b: Parts, 21s: Space, 22: Parts, 22a: Space, 22 b: Structure, 23: Parts, 24: Parts, 25: Parts, 25a: Parts, 25b: Parts, 25 c: parts, 25d: parts, 26: moving parts, 27: housing, 30: moving module, 30a: Parts, 30b: Moving part, 31a: Parts, 31b: Moving part, 32a: Parts, 32b: Moving part , 32c: Space, 33a: Parts, 33b: Moving part, 33c: Space, 34a: Parts, 34b : Parts, 40: Fixtures, 50: Electronic parts, 51: Electronic parts, 52: Electronic parts, 53: Electronic Parts, 60: Space, 200: Electronic equipment, 210: Sensor, 220: Input / output device, 230: Display unit, 240: input unit, 250: detection unit, 400: pixel circuit, 400EL: pixel circuit, 400LC: pixel circuit, 401: circuit, 401EL: circuit, 401LC: circuit, 501: Pixel circuit, 504: driving circuit unit, 550: transistor, 552: transistor, 554 : transistor, 560: capacitance element, 562: capacitance element, 570: liquid crystal element, 572: light emitting element Optical element, 700: display panel, 701: substrate, 702: pixel section, 704: source driver , 705: substrate, 706: gate driver, 707: terminal section, 708: terminal section, 710: Signal line, 711: wiring section, 712: sealing material, 716: FPC, 730: insulating film, 732 : sealing film, 734: insulating film, 736: colored film, 738: light-shielding film, 750: transistor, 752: transistor, 760: connection electrode, 770: planarization insulating film, 772: conductive layer, 7 73: insulating layer, 774: conductive layer, 775: liquid crystal element, 776: liquid crystal layer, 780: anisotropic conductive layer Conductive film, 782: Light-emitting element, 786: EL layer, 788: Conductive film, 790: Capacitor element, 791 :Protection circuit

Claims

1. A foldable electronic device, a housing having a first part, a second part, and a hinge connecting the first part and the second part; a display panel having flexibility and including a first region overlapping the first component, a second region overlapping the second component, and a third region overlapping the hinge; a third component provided on the rear surface side of the display panel and on the front surface side of the first component; a fourth component connected to the back surface side of the first component, the third region curves according to a first angle formed by the first component and the second component; The electronic device, wherein the third component slides in a region on a rear side of the display panel in accordance with the first angle.

2. A foldable electronic device, a housing having a first part, a second part, and a hinge connecting the first part and the second part; a display panel having flexibility and including a first region overlapping the first component, a second region overlapping the second component, and a third region overlapping the hinge; a third component provided on the rear surface side of the display panel and on the front surface side of the first component; a fourth component connected to the back surface side of the first component, the third region curves according to a first angle formed by the first component and the second component; the third component slides in a region on a rear side of the display panel in accordance with the first angle; An electronic device, wherein when folded, the first region and the second region have flat surfaces, and the distance between the first region and the second region in a cross-sectional view becomes smaller as the distance from the third region increases.

3. In claim 1 or 2, the display panel includes a pixel portion having a plurality of light-emitting elements and a gate driver; The electronic device, wherein the pixel unit and the gate driver each overlap with the third region.

Images