Display system

Abstract

To provide a display system or a display device that is suitable for a large size.SOLUTION: A display system includes a first display panel, a second display panel, detecting means, and correcting means. The first display panel includes a first display region. The second display panel includes a second display region. A first region where the first display region and the second display region overlap with each other is provided. The detecting means has a function of detecting the size of the first region. The correcting means has a function of correcting the display of the first display region on the basis of the size change of the first region.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] One aspect of the present invention relates to a display system. Another aspect of the present invention relates to a display device. do.

[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 an object, a method, or a manufacturing method. One aspect of the present invention is a process, machine, manufacture, or composition of matter. Therefore, the present invention disclosed in this specification more specifically relates to the The technical field of one embodiment of the present invention is a semiconductor device, a display device, a light-emitting device, a lighting device, a power storage device, etc. Examples of the present invention include a memory device, a driving method thereof, or a manufacturing method thereof. can.

[0003] In this specification and the like, the display system refers to a system having a display device in general. The display system includes not only display devices, but also semiconductor devices such as transistors, computing devices, It may also include a storage device, an imaging device, etc. [Background technology]

[0004] In recent years, there has been a demand for larger display devices. For example, a 40-inch diagonal display is required for an average home. Television sets with display panels larger than 1080p are becoming more and more popular. In addition, digital signage (Digital S ignage (digital signage) and PID (Public Information Dis In addition, digital signage and PIDs are large. The larger the image size, the more information can be provided. This makes it easy for people to see and increases the effectiveness of advertising.

[0005] Display devices are also expected to be used for a variety of purposes, and there is a demand for diversification of their forms. is.

[0006] Representative display devices include liquid crystal displays and organic EL (Electro Luminescence) displays. escence elements and light emitting diodes (LEDs) Light-emitting devices equipped with light-emitting elements such as OLEDs, and electronic paper that displays information using electrophoresis, etc. - etc.

[0007] For example, the basic structure of an organic EL element is a layer containing a light-emitting organic compound between a pair of electrodes. By applying a voltage to this element, light is emitted from the light-emitting organic compound. A display device to which such an organic EL element is applied is called a liquid crystal display device. Since it does not require a backlight, which was previously necessary in some devices, it is thin, lightweight, has high contrast, and consumes less power. A power-saving display device can be realized.

[0008] In addition, Patent Document 1 describes a film substrate on which transistors and organic EL display devices are mounted. A flexible active matrix type light emitting device having an EL element is disclosed. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2003-174153 A Summary of the Invention [Problem to be solved by the invention]

[0010] An object of one embodiment of the present invention is to provide a display device or a display system that is suitable for large size. Alternatively, to provide a display device or a display system in which display unevenness is suppressed. Another object of the present invention is to provide a display device suitable for space saving. Another object of the present invention is to provide a display device that can be stored compactly. Another object of the present invention is to provide a highly reliable display device.

[0011] Another embodiment of the present invention provides a novel display device, a light-emitting device, a lighting device, an electronic device, or the like. One of the goals of the project is to

[0012] The description of these problems does not preclude the existence of other problems. It is not necessary to solve all of these problems. Problems other than those mentioned above are not necessarily solved. It will become clear from the description of the specification, etc., and problems other than those mentioned above will not be identified from the description of the specification, etc. It is possible to extract [Means for solving the problem]

[0013] One aspect of the present invention is a display device including a first display panel, a second display panel, a detection unit, and a correction unit. and the first display panel has a first display area and the second display panel has a second a first region in which the first display region and the second display region overlap each other; The detection means has a function of detecting the size of the first region, and the correction means detects the size of the first region. The display system has a function of correcting the display of the first display area based on the change in the display distance. .

[0014] The correction means corrects the display of the first display area based on a change in the size of the first area. The first display area may have a function of correcting the display in the first display area and the display in the second display area.

[0015] The second display panel has a first transparent portion adjacent to the second display area. This is also fine.

[0016] Moreover, the first display panel and the second display panel may be flexible. .

[0017] In the above display system, the detection means includes a photoelectric conversion element, A display system provided in the first display area of ​​the first display panel is also one aspect of the present invention. .

[0018] In the above display system, the first display panel has a spare display area, The stage has a function of displaying a part of the auxiliary display area based on a change in the size of the first area. A display system for performing the above-mentioned display is also one aspect of the present invention. Effect of the Invention

[0019] According to one embodiment of the present invention, a display device or a display system suitable for large size can be provided. Alternatively, a display device or a display system in which display unevenness is suppressed can be provided. It is possible to provide a display device that is suitable for a variety of situations. Alternatively, a highly reliable display device can be provided.

[0020] Alternatively, a novel display device, electronic device, etc. can be provided. However, this does not necessarily preclude the existence of other effects. It is not necessary for the invention to have all of the above effects. Effects other than these may be included in the specification, drawings, claims, etc. It is obvious from the description, drawings, claims, etc. It is possible to extract effects other than these. [Brief description of the drawings]

[0021] [Figure 1] 1 shows a configuration example of a display device according to an embodiment. [Diagram 2] 1 shows a configuration example of a display device according to an embodiment. [Diagram 3] 1 shows a configuration example of a display device according to an embodiment. [Figure 4] 13 shows an application example of a display device according to an embodiment. [Diagram 5] 13 shows an application example of a display device according to an embodiment. [Figure 6] FIG. 1 is a block diagram illustrating a display system according to an embodiment. [Figure 7] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 8] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 9] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 10] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 11] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 12] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 13] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 14] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 15] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 16] 1A to 1C are diagrams illustrating a display panel according to an embodiment. [Figure 17] 1A to 1C are diagrams illustrating a display panel according to an embodiment. [Figure 18]5A to 5C are diagrams illustrating a positional relationship of display panels in the embodiment. [Figure 19] 1A to 1C are diagrams illustrating a display panel according to an embodiment. [Figure 20] 1A to 1C are diagrams illustrating a display device according to an embodiment. [Figure 21] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Figure 22] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Diagram 23] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Figure 24] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Diagram 25] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Figure 26] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Figure 27] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Figure 28] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Figure 29] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Diagram 30] 1A and 1B are diagrams illustrating a touch panel according to an embodiment. [Diagram 31] 1A to 1C illustrate examples of electronic devices and lighting devices. [Diagram 32] 1A to 1C are diagrams illustrating examples of electronic devices. [Diagram 33] 1A to 1C are diagrams illustrating examples of electronic devices. [Diagram 34] 1A to 1C are diagrams illustrating examples of electronic devices. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The embodiment will be described in detail with reference to the drawings. However, the present invention is not limited to the following description. The present invention is not limited to the above embodiment, and various changes and modifications may be made in the form and details without departing from the spirit and scope of the present invention. It will be easily understood by those skilled in the art that the present invention can be realized by the following embodiments. The present disclosure should not be construed as being limited to the contents of the preceding paragraph.

[0023] In the configuration of the invention described below, the same parts or parts having similar functions are The same reference numerals are used in common between different drawings, and the repeated explanations are omitted. When referring to a function, the hatch pattern may be the same and no particular symbol may be used.

[0024] In each figure described in this specification, the size, layer thickness, or area of ​​each component is indicated by the following formula: The figures may be exaggerated for clarity and are not necessarily limited to scale. stomach.

[0025] In this specification, ordinal numbers such as "first" and "second" are used to avoid confusion of components. The numbers are added for the purpose of convenience and are not intended to be limiting.

[0026] A transistor is a type of semiconductor device that controls the amplification of current or voltage and the conduction or non-conduction of electricity. In this specification, the transistor can realize a switching operation that controls the , IGFET(Insulated Gate Field Effect Trans istor) and thin film transistor (TFT: Thin Film Transistor ).

[0027] (Embodiment 1) In this embodiment, a display device according to one embodiment of the present invention will be described with reference to drawings.

[0028] [Configuration example] 1A and 1B illustrate a configuration example of a display device 200 of one embodiment of the present invention. The device 200 includes a plurality of display panels 100, a shaft portion 201, a rotation mechanism 202, and a bearing portion 203. 03 and has.

[0029] The display panels 100 are flexible. The 0s are placed so that some of them overlap each other.

[0030] As shown in FIG. 1A, the display device 200 has a plurality of display panels 100 wound around a shaft portion 201. The state after removal and the state in which multiple display panels 100 are suspended as shown in FIG. 1(B) In FIG. 1B, the display device 200 is a total of 1, with 3 panels vertically and 4 panels horizontally. A configuration having two display panels 100 is shown.

[0031] When the display device 200 is in use, the display panels 100 are suspended. By using this function, you can display images and videos on a large screen. By rolling up the display panel 100, it can be stored compactly. In addition, by adjusting the amount of pulling out the display panels 100, the display can be adjusted according to the usage situation. Since the image can be displayed in any size by changing the display size, the display device 200 is highly versatile. I can say.

[0032] For example, one of the devices that can display images on a large screen is a white screen. There is a projection type imaging device (hereinafter referred to as a projector) that projects an image. A projection type video device requires two things: a screen and a projector. When projecting a large image onto a screen, the distance between the projector and the screen should be Since it is necessary to keep the distance between the device and the camera by several meters (typically 2 to 5 meters), it is not suitable for use in an ordinary home or small room. Also, in the case of projection type imaging devices, if the surroundings are bright, the screen may be blurred. The contrast of the displayed image may be reduced due to the reflected light from the screen. Also, depending on the position of the screen and the projector, the image may be distorted. In some cases, this may occur.

[0033] However, the display device 200 according to one embodiment of the present invention displays images and videos by itself. This makes it ideal for installation in homes where space is limited. In addition, the image is not distorted and the contrast is not reduced by the brightness of the surroundings. Since there are almost no problems with the display, images and videos can be displayed with extremely high quality. In addition, because it does not use light sources such as lamps that are necessary for projection type imaging devices, power consumption is reduced. In addition, there is no danger of heat generation and no need to replace the light source. The display device 200 according to the present embodiment is a display device that has both low running costs and high reliability. It can also be said that it is a placement.

[0034] The thickness of each display panel 100 is, for example, 10 μm to 5 mm, preferably 2 0 μm or more and 4 mm or less, more preferably 30 μm or more and 3 mm or less, typically 40 μm or less The thinner the display panel 100 is, the thinner the display panel 100 is. The size of the display device 200 can be made compact when the display device 100 is wound up. If it is too warm, the display panel 100 will be easily affected by wind and other factors, and the mechanical strength of the display panel 100 will decrease. For example, a flexible protective sheet or the like is attached to the display panel 100, By having a suitable total thickness of about 0.5 mm or more and 5 mm or less, the display panel 100 Even when the display is hung, problems such as the display surface becoming wavy can be prevented.

[0035] In addition, the display panel 100 can be made extremely thin and flexible. By using materials such as acrylic, it is possible to make the weight extremely small. The surface area is 100cm 2 The weight of each display panel 100 must be between 0.1g and 50g. Preferably, the amount is 0.1 g or more and 30 g or less, more preferably, 0.1 g or more and 10 g or less, and even more preferably Alternatively, it may be between 0.1g and 5g.

[0036] The weight of the display panel 100 is the weight of the display panel 100 alone (maximum weight required to display an image). The weight of the part that realizes the minimum function, for example, a pair of substrates on which elements, etc. are formed, may be used. In addition, a member (sheet, frame, etc.) for ensuring the strength of the display panel 100 and FPC (Flexible Printer Board, etc.) that is electrically connected to the display panel 100. The weight of the rated circuit, wiring, connectors, etc. may also be included. By using such a lightweight display panel 100, the weight of the display device 200 can be reduced to that of the above-mentioned projection type. It is possible to make the weight of the screen used in the display device equal to or lighter than this. do.

[0037] The display panel 100 has a display area 101. The display area 101 is used to display an image. In addition, the display panel 100 has a transparent portion in a part of the area along the edge of the display area 101. It has a bright portion 110 .

[0038] Of the two adjacent display panels 100, the display panel 100 located on the display surface side is The transparent portion 110 is disposed so as to overlap the display area 101 of the other display panel 100. do.

[0039] In the example shown in FIG. 1B, of the two display panels 100 arranged horizontally, the one positioned on the display surface side is The transparent portion 110 of the display panel to be placed is a part of the display area 101 of the other display panel 100. The same is true for two display panels 100 arranged vertically. In FIG. 1B and other figures, the axis portions 201 of the display panels 100 arranged in each column in the vertical direction are In this example, the display panel 100 closest to the display screen is positioned closest to the display surface. The stacking order is not particularly limited.

[0040] In the overlapping portion of the two display panels 100, the display panel on the opposite side to the display surface side The image displayed in the display area 101 of the display panel 100 is Therefore, one image can be displayed on multiple display panels. Not only can it display 100 images, but it can also display images without any seams between adjacent display panels 100. Therefore, it is possible to realize a display device 200 capable of displaying a large image with high display quality. Here, the display area 103 of the display device 200 is shown surrounded by a dashed line in FIG. .

[0041] By using a plurality of relatively small display panels 100 in the display device 200, a high yield can be achieved. In addition, even if one type of display panel 100 is manufactured, the display panel 10 By changing the number of 0s and the arrangement method, it is easy to use various display devices with different display area sizes. This allows us to expand the variety of products and meet the needs of each customer. It is also easy to meet the needs of small-scale production. The manufacturer sells each unit, and the user can freely select the size and shape of the display area using this. It is also possible to customize.

[0042] The number of pixels (also called screen resolution) of the display area 103 of the display device 200 is Of the number of pixels in the display area of ​​00, the number of pixels that contribute to the display is added together. Here, in order to make the display area 103 have a predetermined number of pixels, the two adjacent display panels 10 0, a part of the display area of ​​the display panel 100 on the opposite side to the display surface side is The number of pixels in the display area 103 may be adjusted by covering it with the display area of ​​the panel 100. By doing so, a display device 2 having a display area 103 with a number of pixels according to user requests and standards can be produced. 00 can be achieved.

[0043] In this example, a display device 2 having a large display area is constructed by using a plurality of display panels 100. 100, but a 100 having a larger display area than that shown in FIG. It is also possible to use one display panel 100. By using one display panel 100, For example, since there are no joints connecting the multiple display panels 100, the diameter of the rolled The size can be made uniform.

[0044] The shaft portion 201 has a function of fixing one end of the display panel 100. 1 shows a case where 12 display panels 100 are arranged in a matrix of 3 panels vertically and 4 panels horizontally. At this time, the shaft portion 201 fixes the ends of the four display panels 100 on the shaft portion 201 side.

[0045] In addition, a part of an FPC or the like electrically connected to each display panel 100 is disposed on the shaft portion 201. Here, a connector, wiring, etc. that are electrically connected to the FPC are provided inside the shaft portion 201. Furthermore, the axis portion 201 is preferably configured to transmit signals and voltages to each display panel 100. In addition, an antenna, a wireless receiver, etc. are preferably provided in the shaft portion 201. The ICs installed on the board include a receiver, a radio transmitter, a power supply line, a battery, a computing device, and a memory device. The configuration may include one or more of a printed circuit board (circuit board), an external connection port, etc. stomach.

[0046] Here, the smaller the diameter of the shaft portion 201, the greater the winding distance when multiple display panels 100 are wound. The diameter can be reduced, and the display panel 100 can be stored more compactly. The diameter of the shaft portion 201 is determined according to the allowable curvature when bending each display panel 100. For example, the diameter of the shaft portion 201 is set to 0.1 mm or more and 50 mm or less, preferably 0. .5mm or more and 30mm or less, more preferably 1mm or more and 20mm or less, more preferably 2 The diameter of the shaft portion 201 can be set to 0.1 mm or more and 10 mm or less. As a result, bending of the shaft portion 201 due to the weight of the display panel 100 can be suppressed. In addition, by making the diameter of the shaft portion 201 50 mm or less, the display panel 100 can be stored without any trouble. Therefore, the size of the display device 200 can be made sufficiently compact.

[0047] The rotation mechanism 202 has a function of rotating the shaft portion 201. In the example of the configuration shown in FIGS. 1(A) and 1(B), one end of the shaft portion 201 is 2 shows an example in which one end is supported by a rotation mechanism 202 and the other end is supported by a bearing portion 203. The bearing portion 203 may also have a function of rotating the shaft portion 201. To achieve this, the rotation mechanism 202 and the bearing portion 203 should be designed to operate in synchronization with each other.

[0048] The display device 200 adjusts the amount of rotation of the shaft portion 201 by the rotation mechanism 202. The area where the multiple display panels 100 are pulled out, i.e., the display area 10 contributing to the display, The length of 3 can be adjusted appropriately.

[0049] The rotation mechanism 202 rotates the shaft 201 by a combination of a motor or other power and gears. In this case, a receiver for infrared rays or the like may be provided on the rotation mechanism 202. If the display device 200 is configured so that the user can operate it using a remote controller or the like, This is suitable for installation in a high position such as on a ceiling or wall.

[0050] Alternatively, the user may manually rotate the shaft portion 201. This shows an example in which a string-like cord 211 is provided on the rotation mechanism 202. 1, the shaft portion 201 is rotated to pull out the multiple display panels 100. Or, it can perform an action such as winding.

[0051] In FIG. 2B, a bar is provided along the edge of the display panels 100 located at the outermost positions. 212 is provided, and a string-like cord 213 is provided on the bar 212. The rotation mechanism 202 rotates the shaft portion 20 in stages according to the amount of pulling out the display panels 100. It is preferable that the display panel 100 has a mechanism for stopping the rotation of the display panel 1. After the display panels 100 are pulled out, the cord 213 is operated to wind up the display panels 100. It is preferable that the bar 212 has a mechanism for rotating the shaft portion 201 in such a manner that the bar 212 is A weight to prevent the display panels 100 from curling when pulled out It can also function as a

[0052] Between the rotating mechanism 202 and the shaft portion 201, a power supply and a signal supply are provided to the FPC in the shaft portion 201. It is preferable that wiring is provided for this purpose.

[0053] At this time, the wiring may break due to the twist that occurs when the shaft portion 201 is rotated. To prevent this, use a sufficiently long wire or wire it in the opposite direction to the rotation direction. It is preferable to use wiring that has been designed to protect against twisting, such as wiring with added twist. .

[0054] Alternatively, the electrical wiring that passes through the inside of the joint between the rotating mechanism 202 and the shaft portion 201 even when the rotating mechanism 202 rotates may be damaged. For example, a liquid metal such as mercury or gallium is used. Rotary connectors using a brush-shaped electrode and slip connectors using a brush-shaped electrode Rings, etc. can be used. Using rotating connectors can reduce wear problems. Therefore, it is preferable.

[0055] Alternatively, signals and power may be transmitted wirelessly between the rotating mechanism 202 and the shaft portion 201, and wiring may be used. For example, the rotation mechanism 202 may be provided with a wireless By providing a transmitter and a wireless receiver in the shaft portion 201, signals are transmitted wirelessly. In addition, power may be supplied between the rotating mechanism 202 and the shaft portion 201 using non-contact power supply. A mechanism for transmitting the signal may be provided. This will reduce the risk of malfunctions such as broken wires. The rotation mechanism 202 can be made highly reliable by eliminating the problem of the above. Alternatively, signals and power may be supplied to the shaft portion 201 directly from another device, not from the shaft portion 201 itself.

[0056] In addition, a mechanism for supplying power and signals to the FPC in the shaft portion 201 is provided in the bearing portion 2. 03 may have it.

[0057] The rotation mechanism 202 and the bearing unit 203 are provided with a circuit for supplying signals and voltages to the shaft unit 201. In addition, it is preferable to provide an antenna, a wireless receiver, etc., in the rotating mechanism 202 or the bearing portion 203. A processor that includes ICs such as a wireless transmitter, a power supply line, a battery, a computing device, and a memory device. The configuration may include one or more of a power board (circuit board), an external connection port, and the like.

[0058] In addition, in FIG. 1(A) and (B), the axis is set so that the display surfaces of the multiple display panels 100 are on the outside. 1C, the display area 101 is wound around the inner portion 201. Alternatively, the wire may be wound around the shaft portion 201 so that the wire is on the side of the wire. In the stored state, the display surface of the display panel 100 may come into contact with other members. can be suppressed.

[0059] FIG. 3A shows the display device 200 with the multiple display panels 100 pulled out, with the rear side facing downward. This shows an example when viewed from the opposite side to the display surface.

[0060] The FPC 104 is electrically connected to each display panel 100. The FPC 104 electrically connected to the display panel 100 is The display panel 100 is disposed along the rear surface side of the other display panel 100 located on the side of the shaft portion 201. In other words, the FPC 104 is electrically connected to the adjacent display panel 100. The display surface has a portion located on the opposite side.

[0061] As shown in FIG. 3A, the FPCs 104 are arranged in such a manner that they do not overlap each other. It is preferable to devise a shape and arrangement method for the FPC 104. By doing so, it is possible to suppress the transmission of noise between them, and to maintain the display quality of the display device 200. It is possible to do so.

[0062] In addition, noise from the FPC 104 is transmitted to the display panel 100 that overlaps the FPC 104. In order to prevent this, at least the FPC 104 and the display panel 1 It is preferable to sandwich a conductive member between the overlapping portions of the display panel 100 and the display panel 100. A conductive film is formed on the back side of the FPC 102 or on the display panel 100 side of the FPC 104. A conductive film may be attached to the surface of the conductive film. By forming an insulating film on the surface or attaching an insulating film, the surface can be insulated. is more preferable.

[0063] In addition, the FPC 104 and the display panel 100 overlapping it are positioned relative to each other. In order to fix the surface, it is preferable that the surface is glued. The FPC 104 is pulled by the action of winding or pulling out the display panel 100. Or, due to twisting, etc., stress is applied to the contacts (crimped parts) of the FPC 104, causing electrical At this time, the FPC 104 and the display panel 100 are connected to each other by a tape. It may be attached with a tape or the like, or it may be attached with a sheet having adhesive material on both sides. If a gel-like material such as silicone resin is used as the adhesive material of such a sheet, When the display panel 100 is wound up, the FPC 104 and the display panel 100 are misaligned relative to each other. In addition, as such a sheet, it is preferable to use a sheet that is resistant to electromagnetic waves. By using a sheet with an absorbing function, the influence of the above-mentioned noise can be suppressed. .

[0064] As shown in FIG. 3B, in order to protect the FPC 104 and the rear side of the display panel 100, Therefore, a flexible protective member 105 is provided over the entire display panels 100. The material used for the protective member 105 may be a metal, an alloy, or a plastic. Examples of the material include paper, rubber, and fabrics made of natural or synthetic fibers. The protective member 105 may be colored to block light. If the FPC 104 and the like are made to have such a structure, the FPC 104 and the like cannot be seen, and the design can be improved. do.

[0065] The above is a description of the configuration example.

[0066] [Example of application] An example of application of the display device of one embodiment of the present invention will be described below.

[0067] FIG. 4A shows an example in which a display device 200 according to one embodiment of the present invention is installed on a wall 221 in a room. vinegar.

[0068] In FIG. 4A, a controller linked to a rotation mechanism 202 (not shown) of a display device 200 is shown. The display device 2 is configured to include a code 211. 00 display panel can be transformed into a rolled-up state and a pulled-out state. can.

[0069] The display device 200 is provided at its upper portion with a shaft portion 201, a rotation mechanism 202, a bearing portion 203, etc. A cover 222 is provided to store the display panel (not shown) in a rolled-up state. In FIG. 4B, the display panel of the display device 200 is housed in a cover 222. When the display device 200 is not in use, the cover is removed as shown in FIG. The display device 200 is entirely hidden by the cover 222 when the display panel is rolled up, so that the display device 200 can be more clearly seen. It is possible to create a crisp interior.

[0070] 4A and 4B show a table 23 having a display device 200 according to an embodiment of the present invention. 4C and 4D are schematic cross-sectional views of the table 230.

[0071] The table 230 has a display device 200 inside a housing 231. The surface has a light-transmitting cover 232. The cover 232 is made of glass, plastic, etc. As shown in FIG. 4C, when the display surface of the display device 200 is flat, When the display device is turned on, the image displayed on the display surface can be seen through the cover 232. When the 200 is not in use, the cover 232 is removed from the portion covered by the cover 232 as shown in FIG. The display panel of the display device 200 is stored in a rolled-up state on the outer side of the display device. It can be used as a rule.

[0072] 5A and 5B show a portable display device to which the display device 200 of one embodiment of the present invention is applied. The display device 240 includes a display device 200, a housing 241, It has a bar 242, a frame 243, and legs 244. FIG. 5(A) shows the state of use. FIG. 5(B) shows the folded state.

[0073] Inside the housing 241, there are a shaft portion 201, a rotation mechanism 202, a bearing portion 203, etc. (not shown). (i) is provided.

[0074] The bar 242 is provided along the edge of the display panels 100 located at the outermost end. By pulling the bar 242 upward from the housing 241 side, the display panel can be removed from the housing 241. In addition, when the display panel is pulled up, the bar 242 and the frame 2 43 and can be fixed.

[0075] The housing 241 and the frame 243 are rotated by 90 degrees from a state in which they are parallel to each other. The frame 243 is fixed so as to be rotatable. The frame 243 is also provided with foldable legs 244. With this configuration, as shown in FIG. This allows the device to be folded compactly, making it highly portable when carried around. Moreover, when in use, it can be displayed on a large screen.

[0076] The housing 241 and the frame 243 may be detachable. When the device is not in use, the housing 241 is fixed to the frame 243, and when the device is not in use, the housing 241 and the frame 243 are separated. The sensor may be stored in a case or the like.

[0077] In addition, either or both of the frame 243 and the leg portion 244 have a telescopic function. The height of the display area can be adjusted by expanding and contracting the frame 243. In addition, the device can be stored in a more compact form.

[0078] In this example, the housing 241 is disposed on the lower side, and the bar 242 is pulled up for use. However, it is also possible to use the housing 241 on the upper side and pull down the bar 242. 241 and bar 242 are oriented vertically, and bar 242 is pulled horizontally. This is also fine.

[0079] It is also preferable to have a battery inside the housing 241. It can be used in places where power cannot be used from the building, such as outdoors or in large halls. It becomes.

[0080] Here, the display device 200 applied to a wall 221, a table 230, a display device 240, etc. It is preferable that the device has a function of receiving images. For example, a television broadcast receiver ( A built-in tuner may be used to display television broadcasts on the display surface. The device may have a connection terminal for connecting to a playback device for the storage medium, and may display images recorded on the storage medium. In addition, the USB (Universal Serial Bus) terminal, video terminal, etc. or wired or wireless LAN (Local Area Network), etc. It may be configured to display images or videos on the Internet via a network. The configuration allows connection to computers, mobile information terminals, etc. via these terminals and networks. The video output from these devices may be displayed.

[0081] The above is a description of the application example.

[0082] In the above-described configuration, the display panel 100 capable of displaying images and the like is a light-emitting panel. By replacing the display device 200, the display device 200 can be used as a lighting device. The light-emitting panel has a flexible substrate on which light-emitting elements such as organic EL elements are formed. The above configuration can be used.

[0083] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0084] (Embodiment 2) In this embodiment, a display device according to one embodiment of the present invention to which the display device described in Embodiment 1 can be applied will be described. An example of the configuration of a display system will be described with reference to the drawings.

[0085] One way to realize a large-sized display device is to arrange multiple display panels in a tiled pattern. There is a method for using the display areas of multiple display devices as a single display screen.

[0086] In a large display device in which display panels are arranged in a tiled pattern and fixed, The display panel may expand or contract due to changes in temperature or due to repeated external forces during use. The relative positions of the modules may change.

[0087] In the following, we will explain the effect of the change in the relative positional relationship between the multiple display panels that make up the display system. We will also show a configuration example for correcting the display. Or, we will show a configuration example of a display system suitable for large size. A configuration example of a display system that suppresses display unevenness is shown. The present invention also provides an example of the configuration of an electronic device that is highly portable.

[0088] A display system according to one embodiment of the present invention includes a first display panel having a first display area and a second display panel. The first display includes a second display panel having a display area of ​​the first display, a detection means, and a correction means. A part of the second display area overlaps the first display area. The correction means has a function of detecting the size of the overlapping first area. The display of the first display area is corrected based on the change.

[0089] The correction means corrects the first display area and the second display area based on the change in size of the first area. It may have a function of correcting the display in the display area.

[0090] FIG. 6A is a block diagram showing an example of the configuration of a display system 10. The arrows in the diagram indicate the direction in which information or signals travel.

[0091] The display system 10 shown in FIG. 6(A) includes a display panel 20a, a display panel 20b, a detection means, A stage 31 and a correction means 32 .

[0092] First, a configuration example of the display device 20 included in the display system 10 will be described with reference to FIG. .

[0093] 7A1 to 7C2 are schematic top views of the display device 20 included in the display system 10. The display device 20 includes a display panel 20a and a display panel 20b. The display panel 20a has a display area 21a. The display panel 20b has a display area 21b and a transparent portion. The transparent portion 22b includes a region that transmits visible light. The display panel 20a and the display panel 20b are the same except that the display panel 20b has a transparent portion 22b. The display panel 20a and the display panel 20b have the same configuration, but are not limited to this. That is, the display panel 20a has a transparent portion similar to that of the display panel 20b. By providing the display device 20, mass productivity in manufacturing the display device 20 can be improved.

[0094] The display area 21a and the display area 21b include a plurality of pixels arranged in a matrix. Each pixel is provided with one or more display elements. As the element, for example, a light-emitting element such as an organic EL element, a liquid crystal element, etc. can be used. The display region 21a and the display region 21b each include a region that does not transmit visible light.

[0095] In the area other than the display area 21a of the display panel 20a, for example, Wiring is provided to electrically connect to the pixels. In addition to such wiring, scanning lines A driver circuit for driving the pixels, such as a driver circuit or a signal line driver circuit, may be provided. The same is true for the display area 21b of the display panel 20b and the areas other than the transparent portion 22b. In Figs. 7(A1) to (C2), the display panel 20a and the display panel 20b and the external device FPC (Flexible Printed Circuit) that electrically connects ) are omitted.

[0096] If the thickness of the display panel 20a and the display panel 20b is thin, the display area 21a and the display area This is preferable because it makes it possible to make the joint with the display panel 20 less visible. a and the display panel 20b are flexible, so that the display device 20 can be stored in a rolled state. This is preferable because it allows the display device to have excellent portability.

[0097] FIG. 7(A1) shows the initial state of the display panel 20a and the display panel 20b in the display device 20. FIG. 7(A2) shows the positional relationship between the display area 21a and the display area 21b. The display device 20 has a display area 21. A different image can be displayed in the display area 21a and the display area 21b. It is also possible to display one image as shown in FIG. 7(A2). The boundary between area 21a and display area 21b is shown.

[0098] In FIG. 7(A1), a part of the display panel 20b overlaps the display panel 20a. Since the transparent portion 22b is located adjacent to the display area 21b, the display area 21b is By arranging the display area 1a and the display area 21b side by side without any gaps, the display device 20 has a seamless large screen. It is possible to display.

[0099] Area 11 is the portion where display area 21b overlaps display area 21a.

[0100] Next, the function of each component of the display system 10 will be described.

[0101] For example, when the display device 20 is stored in a rolled state, the display device is rolled up when used. When the device 20 is opened in the direction of the arrow in FIG. 7(B1), an external force is applied in the direction of the arrow. Similar external forces may be applied by gripping the device 20. These external forces are repeatedly displayed. By acting on the device, the positional relationship between the display panel 20a and the display panel 20b changes to that shown in FIG. ) The display device 20 has the region 11, so that Even if a positional relationship occurs, a gap will not occur between the display area 21a and the display area 21b. It is possible to suppress the above.

[0102] Furthermore, when the size of the display area used by the display device 20 is changed, the display system 10 A detection means 31 for detecting the change and a correction means 32 for correcting the display in response to the change are provided. That is, the size of the display area used by the display device 20 is Even if the value of the display changes, the display can be continued in the same manner as before the change. The display system can perform highly reliable display. The positional relationship between the display panel 20a and the display panel 20b changes due to changes in temperature and humidity. However, according to one aspect of the present invention, the display device 20 can continue to display the same image as before the change. Cut.

[0103] By making the portion of the display area 21a that overlaps with the area 11 invisible, the display device 20 can be made invisible. In addition, the transparent portion 22b absorbs or reflects a part of visible light. In this case, the display of the image in the display area 21a overlapping with the transparent portion 22b becomes dark. The display brightness of the portion of the display area 21a that overlaps with the transparent portion 22b may be reduced by the surrounding area of ​​the portion. By making the display device 20 higher than the above, the display image can be seamless and uneven display is less likely to be visually recognized. 15 can be displayed.

[0104] FIG. 7(B1) shows the positional relationship between the display panel 20a and the display panel 20b, which is different from that shown in FIG. 7(A1). ) to the direction in which the two panels are adjacent (the X-axis direction in Figure 7(B1)). 7(A1) is a schematic top view of the display device 20 in the above case. ), the area becomes 11A, and the size of the display area 21b overlapping the display area 21a becomes smaller. In addition, the position of the display area 21a overlapping with the transparent portion 22b is changed.

[0105] A detection means 31 (not shown) detects a change in the size of the area 11, and a correction means 32 (not shown) changes the size of the display area 21a and / or the display area 21b based on the change in size of the area 11. The display in the display area 21b is corrected.

[0106] As shown in FIG. 7(A1) to FIG. 7(B1), the positions of the display panel 20a and the display panel 20b are The display correction contents when the positional relationship is changed are specifically as follows. FIG. 7 (A1) In the above state, a part (area 11) of the display area 21a that is not emitting light is shown in FIG. The portion that does not overlap with the display area 21b (the portion of the area 11 excluding the area 11A) The display area 21a is a light-emitting area, and is brighter than the surrounding area in the state of FIG. A part of the transparent portion 22b (the part overlapping with the transparent portion 22b in FIG. 7(A1)) is made to have the same display brightness as the surrounding area. 7B1, the display brightness of a part of the display area 21a newly overlapping with the transparent portion 22b is set as The intensity is increased so that the entire light-emitting portions of the display area 21a and the display area 21b are illuminated. Accordingly, the size and aspect ratio of the display image 15 are changed.

[0107] That is, the light-emitting and non-light-emitting portions in the display area 21a and / or the display area 21b changing an area of ​​the light-emitting part; determining the size and aspect ratio of the image displayed by the display device; The correction content generated by the correction means 32 includes the above.

[0108] The correction means 32 generates a signal with the above correction contents, and the display panel 20a and the display panel By transmitting the signal to the display panel 20b, the display system 10 displays the Even if the relative positions of the panel 20a and the display panel 20b change, a seamless and smooth image can be displayed. In FIG. 7B2, the display device 20 can display a display screen. The state in which the display image 15A whose size and aspect ratio have been changed from the image 15 is displayed is shown. It shows.

[0109] FIG. 7(C1) shows the positional relationship between the display panel 20a and the display panel 20b, which is different from that shown in FIG. ) in the direction perpendicular to the direction in which the two panels are adjacent (the Y-axis direction in Figure 7(C1)). 7A shows a schematic top view of the display device 20 when the display direction is changed from the direction of the light-transmitting direction to the direction of the light-transmitting direction. In FIG. 7C1, the area is the area 11B, and the area of ​​the display area 21b overlapping the display area 21a is the area 11B. Furthermore, the side of the display area 21a and the display area 21b, which were aligned on the same straight line, are now smaller. The positional relationship is changed so that the side of the region 21b is shifted. The position of the display area 21a has changed.

[0110] The detection means 31 detects a change in the size of the region 11, and the correction means 32 detects the change in the size of the region 11. Correcting the display of the display area 21a and / or the display area 21b based on the change in size .

[0111] As shown in FIG. 7(A1) to FIG. 7(C1), the positions of the display panel 20a and the display panel 20b are The display correction content when the positional relationship is changed is specifically as follows. Of the part (area 11) of the display area 21a that was in the non-light-emitting state in the state of FIG. 7 (C1 ) in the area that does not overlap with the display area 21b (area 11 excluding area 11B) 7(A1)) is the light-emitting part. A part of 1a (the part overlapping with the transparent part 22b in FIG. 7(A1)) is made to have the same surface as the surrounding area. The display luminance of the portion newly overlapping with the transparent portion 22b in FIG. 7(B1) is increased. The largest rectangle among the display areas formed by the display areas 21a and 21b is The part including the image is made into a light-emitting part, and the size and aspect ratio of the display image 15 are changed to match the light-emitting part. Finally, the parts of the display area 21a and the display area 21b that are not included in the rectangle are hidden. It is the light-emitting part.

[0112] The correction means 32 generates a signal with the above correction contents, and the display panel 20a and the display panel By transmitting the signal to the display panel 20b, the display system 10 displays the Even if the relative positions of the panel 20a and the display panel 20b change, a seamless and smooth image can be displayed. In FIG. 7C2, the display device 20 can display a display screen. The state in which the display image 15B whose size and aspect ratio have been changed from the image 15 is displayed is shown. It shows.

[0113] Next, a configuration example of the display system 10 will be described with reference to FIGS.

[0114] In addition, elements enclosed in a frame in the block diagram are at least electrically connected to each other. This includes cases where the components are contained within a single housing.

[0115] FIG. 6A shows a display system 10 including a display panel 20a, a display panel 20b, and a detection In this example, the output unit 31 and the correction unit 32 are included in different housings. As shown in FIG. 6(B), the display panel 20a and the display panel 20b are housed in a single housing. The display panel 20a and the display panel 20b may be integrated into one display device 20. The display device 20 may be provided without being housed in a housing.

[0116] The detection means 31 detects information regarding the positional relationship between the display panel 20a and the display panel 20b, Specifically, it has a function of detecting the size of the area 11 shown in FIG. 31 is, for example, a digital camera, a CCD (Charge Coupled Device) In addition, an imaging device such as a camera or an image scanner can be used. The display of the display device 20 is imaged by such an imaging device, and the obtained image or video is displayed based on the position information. The result can be output to the correction means 32 as information.

[0117] Also, as shown in FIG. 6(C), the detection means may be included in the display panel. The detection means 31a and the detection means 31b included in the display panel may be, for example, photoelectric conversion means. An imaging pixel including a conversion element, a photoelectric conversion element, and an imaging pixel circuit that drives the photoelectric conversion element Some examples include:

[0118] In FIG. 7(A1), the display area 21a is included in the overlapping area 11 with the display area 21b. The pixels in the display area 21a are blocked from external light by the display area 21b. External light is incident on the pixels included in the area other than the display area 21a. By having an imaging pixel as the detection means 31a, the photoelectric conversion element of the imaging pixel detects external light. The change in size of the display area 21a can be detected precisely. In the area where the transparent portion 22b overlaps the display region 21a, part of the external light incident on the pixels arranged in the display region 21a is Therefore, the intensity of external light detected by the photoelectric conversion element may be The display luminance of the pixels arranged in the display area 21a can be adjusted according to the The specific configuration of the touch panel having imaging pixels will be described later.

[0119] The correction means 32 has a function of receiving the position information detected by the detection means 31 and a function of converting the position information. A signal ( a function of generating a correction signal (hereinafter also referred to as a correction signal) and transmitting the correction signal to the display panel 20a and / or The correction signal can be generated by a device such as a Examples of computing devices include GPUs (graphics processing units) and CPUs (central processing units). a storage device storing a program for causing a computer to execute the above-mentioned correction content; A computer capable of executing the program may be used.

[0120] The correction means 32 exists independently of the display panel and the detection means as shown in FIGS. Alternatively, as shown in FIG. 6(D), a display panel and a detection means may be provided in the display system 10. The correction means 32 may be electrically and / or physically connected to the stage. The method of receiving and the method of transmitting signals may be wired or wireless.

[0121] [Variation 1] In the following, a display device having a configuration partially different from that of the display device 20 shown in FIGS. The apparatus will now be described.

[0122] 8A1 to 8C2 are schematic top views of the display device 25 of the display system 10. In addition, the display device 25 has the same configuration as the display device 20. The explanation for 0 can be used.

[0123] The display device 25 includes a display panel 25a and a display panel 25b. The display panel 25a has a display area 21a and a spare display area 23a. The display panel 25b has a transparent area 21b, a transparent portion 22b, and a spare display area 23b. In addition, the auxiliary display area 23b may not be provided.

[0124] The auxiliary display area 23a and the auxiliary display area 23b are each a plurality of images arranged in a matrix. Each pixel contains one or more display elements and is capable of displaying an image. In the initial state of the display device 25, the auxiliary display area 23a and the auxiliary display area 23b are The detection means 31 can also detect the change in size of the area 11 based on the change in size of the area 11. A function for displaying a part of the auxiliary display area 23a and / or a part of the auxiliary display area 23b Yes.

[0125] The auxiliary display area can be provided at a position adjacent to the side of the display area. The auxiliary display area 23b is disposed adjacent to three sides of the display area 21b. In this embodiment, the auxiliary display area 23a is the same as the auxiliary display area 23b in that ... Although the display area 21a is configured to be provided on three sides, the display area 21a may be surrounded by the display area 21a. In the initial positional relationship between the display panel 25a and the display panel 25b, the display area 21b is The display area 21a overlapping with the auxiliary display area 23a (area 11 in FIG. 8(A1)) is By doing so, the power consumption of the display device 25 can be reduced.

[0126] The size of the auxiliary display area provided on the display panel is determined based on the assumed display panel 25a and the display panel The amount of change in the relative position of the display 25b can be determined according to the amount of change in the relative position of the display 25b. The thermal expansion coefficient of the material of the substrate constituting the panel should be taken into consideration. When the relative positional relationship between the display panel 25a and the display panel 25b is changed, The size of the auxiliary display area can be determined according to the purpose of use. In the schematic top view shown in (C2), the auxiliary display area 23a and the auxiliary display area 23b are The size is exaggerated for the purpose of illustration.

[0127] The width of the auxiliary display area is set to 50 μm or more and 50 mm or less, preferably 100 μm or less. The range may be up to 30 mm, and more preferably from 500 μm to 20 mm. Alternatively, the number of pixels included in the width direction of the auxiliary display area is preferably set to 1 pixel or more and 100 pixels or less. It is preferable to set the pixel size to 5 pixels or more and 80 pixels or less, and more preferably to set the pixel size to 5 pixels or more and 50 pixels or less. This can be done.

[0128] For example, the entire display area of ​​the display panel 25a (the display area 21a and the auxiliary display area 23a The area including the display area 21a and the spare display area 22a has a diagonal of 13.5 inches, and the number of controllable pixels is 13.5 inches. In this case, the number of pixels including the display area 23a is 2560 x 1440. The area 23a is 25 pixels from each side of the entire display area, that is, the width of the auxiliary display area 23a. The length may be set to about 5 mm.

[0129] FIG. 8(A1) shows the initial state of the display panel 25a and the display panel 25b in the display device 25. FIG. 8(A2) shows the positional relationship between the display area 21a and the display area 21b. 1 shows a state where one display image 15 is displayed. In this case, the auxiliary display area 23a and the auxiliary display area 23b are not emitting light (FIG. 8(A) See 2).

[0130] FIG. 8(B1) shows the positional relationship between the display panel 25a and the display panel 25b. When the number of the adjacent lines changes in the direction of the display device 25 (the X-axis direction in FIG. 8(B1)), 8(A1) is region 11C in FIG. 8(B1). The size of the display area 21b overlapping the display area 21a is larger in the X-axis direction. In addition, the position of the display area 21a overlapping with the transparent portion 22b is changed.

[0131] The detection means 31 detects a change in the size of the region 11, and the correction means 32 corrects the change in the size of the region 11. The display in the display area 21a and / or the display area 21b is corrected based on the change in size.

[0132] As shown in FIG. 8(A1) to FIG. 8(B1), the positions of the display panel 25a and the display panel 25b are When the positional relationship is changed, the correction content of the display generated by the correction means 32 is changed from FIG. When the positional relationship between the display panel 20a and the display panel 20b changes as shown in FIG. 7(B1) It differs from the following in the following respects:

[0133] When the positional relationship between the display panel 25a and the display panel 25b changes, the correction means 32 The initially displayed image 15 will continue to be displayed without changing its size or aspect ratio. The display panel includes a display area and a spare display area, and a light-emitting area and a non-light-emitting area are provided in the display area and the spare display area so that the display panel can display a light-emitting area and a non-light-emitting area. In other words, the number of pixels ( This can prevent the number of effective pixels (also called the number of effective pixels) from changing.

[0134] When the display device 25 changes from the state of FIG. 8(A1) to the state of FIG. 8(B1), The size of the display area of ​​25 will be smaller in the X-axis direction. Therefore, the spare By making a part of the display area 23a and / or the auxiliary display area 23b a light-emitting part, The size and aspect ratio of the device 25 in the state of FIG. 8(B1) are the same as those in FIG. 8(A2). Therefore, a new display image 15 can be displayed (see FIG. 8(B2)).

[0135] The display panel 25a and the display panel 25b are arranged in advance to surround the display area of ​​the display device 25. By providing the auxiliary display area 23a and the auxiliary display area 23b, the correction means 32 For example, the display may be adjusted according to the temperature and humidity of the storage environment of the display device 25. Even if the positional relationship between the display panel 25a and the display panel 25b changes, the display system according to one embodiment of the present invention remains the same. The system 10 allows the display device 25 to continue to display the same image. The display system according to one embodiment of the present invention is capable of providing highly reliable display.

[0136] FIG. 8(C1) shows the positional relationship between the display panel 25a and the display panel 25b, which is different from that shown in FIG. 8(B1). ) and then in the direction perpendicular to the direction in which the two panels are adjacent (see Fig. 8(C1) 8(B1) shows a schematic top view of the display device 25 when the display device 25 is changed in the Y-axis direction. The area 11C becomes the area 11D in FIG. 8(C1), and is the display area 21a overlapping the display area 21b. The size of 1b is smaller in the Y-axis direction. Furthermore, the display area that was located on the same straight line The positional relationship has changed so that the sides of the display area 21a and the sides of the display area 21b are misaligned.

[0137] When the display device 25 changes from the state of FIG. 8(B1) to the state of FIG. 8(C1), The outline of the display area 25 changes from a rectangle to an octagon. The display area 21a and the display area 21b are arranged so as to match the aspect ratio and the number of effective pixels of the display area. The auxiliary display area 23a and the auxiliary display area 23b are adjacent to each other in the Y-axis direction of the area 21b. By performing such correction, the display device 25 generates the correction content for the light emitting portion. In the state of (C1), the display image 15 has the same size and aspect ratio as that of FIG. 8(A2). can be displayed (see FIG. 8(C2)).

[0138] [Application example 1] In the display device 35 according to one embodiment of the present invention, a plurality of display panels 36 are arranged so that the display area is seamless. Here, a part of the display area of ​​each display panel 36 is By using this, the display area 37 of the display device 35 can be transformed into any shape. The display panel 36 has a transparent portion 38 adjacent to the display area.

[0139] FIG. 9A shows a case where an image is displayed over the entire display area of ​​each display panel 36, resulting in a large display. 9B shows a case where each display panel 36 forms a region 37. By displaying an image in a part of the display area of ​​the display device 35, the display area 37 of the display device 35 is fanned. Here, the display device 35 has a sector-shaped display area 37. The area on the side becomes a non-display area 39.

[0140] The display panel 36 located inside the display area 37 displays a part of an image over the entire display area. The display panel 36 located inside the non-display area 39 displays an image in its display area. The display panel 36 located between the display area 37 and the non-display area 39 is not shown. An image appears in part of the area.

[0141] With this configuration, even if similar panels are used as the display panels 36, Therefore, it is possible to form a display area 37 of any shape. In order to form the region 37, there is no need to change the design or process, and the display panel can be used in common. It is possible to realize a display device having a display area 37 of any shape by using the above.

[0142] Here, in order to form a display area 37 of an arbitrary shape, a part of the display area of ​​each display panel 36 is At this time, the other parts of the display area of ​​each display panel 36 are driven to display an image. It is only necessary to drive the display panel 36 so that a portion of it is not driven and no image is displayed.

[0143] Furthermore, it is preferable to provide a system having a display device 35, a detection means, and a correction means. More specifically, it is preferable that the images displayed on the display panels 36 are seamlessly connected. It is preferable to have a correction means having a function of correcting this deviation. The image sensor has a detection means for detecting image deviation, and outputs information on the deviation to a correction means. It is preferable to have a configuration in which the input is possible.

[0144] [Application example 2] FIG. 10A is a schematic top view of a display panel 45 included in a display device 40 according to one embodiment of the present invention. The display panel 45 has a display area 41, a transparent portion 42, and an auxiliary display area 43. The transparent portions 42 are provided adjacent to three sides of the display area 41.

[0145] The auxiliary display area 43 is in a non-light-emitting state in the initial state of the display panel 45. The area 41 can also function as an auxiliary display area 43. The auxiliary display area 43 can also function as a It can also function as the display area 41. That is, the display panel 45 shown in FIG. In the region inside the outline of the auxiliary display region 43 shown in FIG. 1, the region of the display region 41 can be arbitrarily shaped. The display area 41 and the auxiliary display area 43 can be set as follows. This can be included in the corrections generated by stage 32.

[0146] FIG. 10B shows the upper surface of the display device 40 having two display panels 45 shown in FIG. 1 is a schematic diagram of a display panel 45a, in which a display panel 45b is superimposed on a display panel 45a. The area 43b is not emitting light in the initial state of the display panel 45b, but is connected to the display area 41a. By making the overlapping area 44 a light-emitting portion, the display area of ​​the display device 40 is smooth and has no gaps. A display image 46 can be displayed (see FIG. 10(C)).

[0147] The display surface of the display panel 45a and the surface opposite to the display surface of the display panel 45b are arranged in such a manner that the relative positions of the display surface and the surface of the display panel 45a and the surface of the display panel 45b are different from each other. The display panel 45a may be fixed to the display panel 45a by adhesive, or may be fixed to the display panel 45a by adhesive. By removably fixing the display panel 45b, the display panel can be easily replaced. As a method for removably fixing the device, for example, an adhesive film can be used. The film with adsorption properties can remove air between the adherend and the film, and can be applied at low or high pressure. It has the function of adhering to the adherend by creating a vacuum state. It also has the function of fixing it detachably. As a method, a film having adhesive properties may be used.

[0148] Even when the positional relationship between the display panel 45a and the display panel 45b is changed, i.e., when the area When the size of the area 44 changes, the display system 10 according to the embodiment of the present invention has a detection means 31 and the correction means 32, the display device 40 displays a smooth display without gaps in the display area. In addition, the correction means 32 can continuously perform the above steps. The display areas (41a, 41b) and the auxiliary display areas (43a, 43b) of 45b are automatically By having the ability to freely change the display area, the display device 40 can display a display in a display area of ​​any shape. It can be done.

[0149] FIG. 10D shows a display device having five display panels 45 (display panels 45a to 45e). 10(A) shows a schematic top view of the display device 48. The display area 41 of the display panel 45 is shown in FIG. By changing the display area, for example, a circular display area 41A as shown in FIG. 10(D) can be formed. Also, as shown in FIG. 10(E), a doughnut-shaped display area 41B can be formed. In addition, in FIG. 10(D) and FIG. 10(E), the display panels 45a to 45c The transparent portion and the auxiliary display area of ​​5e are omitted.

[0150] In addition, by combining multiple display panels 45, the display system 10 can display an elliptical or polygonal image. It is possible to configure a display area of ​​any shape that allows for a flat surface, such as a flat screen. Not limited to flat surfaces, it can also be used for polyhedral shapes such as regular tetrahedrons and regular hexahedrons, and curved shapes such as cones and spheres. A seamless display area may be constructed on the surface of a three-dimensional shape having a surface. 1 shows a schematic perspective view of a display device 49 having a display area 41C in the shape of a regular hexahedron.

[0151] For example, in this specification, a display element, a display device which is a device having a display element, a light-emitting A light-emitting device, which is a device having an element and a light-emitting element, can be used in various forms or can be used in various forms. The display element, the display device, the light-emitting element, or the light-emitting device can have, for example, EL (electroluminescence) elements (EL elements containing organic and inorganic materials, organic EL elements LEDs (white LEDs, red LEDs, green LEDs, blue LEDs, etc.) , transistors (transistors that emit light according to electric current), electron-emitting devices, liquid crystal devices, electron Ink, electrophoretic element, grating light valve (GLV), plasma display (PDP), a display element using MEMS (microelectromechanical systems) Digital Micromirror Device (DMD), Digital MicroShutter MIRASOL (registered trademark), IMOD (Interference Modulation MEMS display elements using the shutter method, MEMS display elements using the optical interference method, Using chromium-based wetting elements, piezoelectric ceramic displays, and carbon nanotubes In addition to these, the display element has at least one of electrical or magnetic functions. Even if the display medium has a variable contrast, brightness, reflectance, transmittance, etc. depending on the use, An example of a display device using an EL element is an EL display. One example of a display device using an emission element is the field emission display (FED). ) or SED type flat panel display (SED: Surface-conduction LCDs using liquid crystal elements. An example of a display device is a liquid crystal display (transmissive liquid crystal display, semi-transmissive liquid crystal display, etc.). LCD, reflective LCD, direct-view LCD, projection LCD Display using electronic ink, electronic liquid powder, or electrophoretic elements An example of such a device is electronic paper. In order to realize a liquid crystal display, a part or all of the pixel electrodes are made to be reflective electrodes. For example, a part or the whole of the pixel electrode may be made of aluminum. In this case, the reflective electrode may have a thickness of 100 nm or 100 nm. It is also possible to provide a memory circuit such as RAM, which further reduces power consumption. When using an LED, a glass substrate is placed under the LED electrode and the nitride semiconductor. Graphene or graphite may be arranged in layers. In this way, by providing graphene or graphite, On top of this, a nitride semiconductor, for example, a crystal-containing n-type GaN semiconductor layer, can be easily formed. Furthermore, a p-type GaN semiconductor layer having crystals can be provided thereon, It is possible to construct an LED. Note that graphene or graphite and n-type crystalline An AlN layer may be provided between the GaN semiconductor layer and the GaN semiconductor layer. The layers may be deposited by MOCVD. However, the inclusion of graphene makes the LED The GaN semiconductor layer can also be formed by sputtering.

[0152] For example, in this specification, an active matrix type having active elements in pixels, Alternatively, a passive matrix system in which the pixels do not have active elements can be used.

[0153] In the active matrix method, a transistor is used as an active element (active element, nonlinear element). By using not only transistors but also various active elements (active elements, nonlinear elements), For example, MIM (Metal Insulator Metal) or T It is also possible to use FD (Thin Film Diode) and other elements. Since the number of manufacturing steps is small, it is possible to reduce manufacturing costs and improve yields. Alternatively, these elements can improve the aperture ratio due to their small size. This makes it possible to achieve low power consumption and high brightness.

[0154] As a non-active matrix type, active elements (active elements, nonlinear elements It is also possible to use a passive matrix type that does not use active elements. Since it does not use any nonlinear elements, there are fewer manufacturing steps, which reduces manufacturing costs and improves yield. It is possible to improve the accuracy. Or, it is possible to use active elements (active elements, nonlinear elements) Since the aperture ratio is not increased, it is possible to achieve low power consumption and high brightness. It is possible to do this.

[0155] In this embodiment, various displays are shown using a display panel. An embodiment of the present invention is not limited to this. For example, the information may not be displayed. In this case, the display panel may be used as a lighting device instead of a display panel. This allows it to be used as an interior with excellent design. It can be used as a light source that can illuminate a specific direction. In addition, it may be used as a light source for a backlight or a frontlight. It may also be used as a lighting device for the room.

[0156] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0157] (Embodiment 3) In this embodiment, a configuration example and an application example of a display device according to one embodiment of the present invention will be described with reference to drawings. Please refer to the following for explanation.

[0158] [Configuration example 1] FIG. 11A is a schematic top view of a display panel 100 included in a display device according to one embodiment of the present invention. It is.

[0159] The display panel 100 includes a display area 101 and a transparent layer adjacent to the display area 101 that transmits visible light. The transparent portion 110 and the region 120 that blocks visible light are included. An example in which an FPC 112 is provided on a display panel 100 is shown.

[0160] The display area 101 includes a plurality of pixels arranged in a matrix, and is capable of displaying an image. Each pixel is provided with one or more display elements. Typically, a light-emitting element such as an organic EL element, a liquid crystal element, or the like can be used.

[0161] The transparent portion 110 includes, for example, a pair of substrates constituting the display panel 100 and the pair of substrates A sealant for sealing the display element sandwiched between the plates may be provided. The members provided in the transparent portion 110 are made of a material that is translucent to visible light.

[0162] In the region 120, for example, wiring electrically connected to pixels included in the display region 101 is provided. In addition to these wirings, a driving circuit (scanning line driver) is also used to drive the pixels. In addition, the region 120 may include an FPC 112. Terminals (also called connection terminals) that electrically connect to the This includes the area in which it is provided.

[0163] A display device 50 according to an embodiment of the present invention includes a plurality of the above-described display panels 100. In B) a schematic top view of a display device 50 with three display panels is shown.

[0164] In the following, the display panels, the components included in the display panels, and In order to distinguish between components related to each display panel, an alphabetical character is added after the reference numeral. In addition, unless otherwise specified, the bottommost side (opposite side from the display surface side) ) display panels or components placed in the upper part of the display panel or components are marked with "a" and arranged in order above it. For one or more display panels and their components, the letter "b" or the following alphabets are added to the reference numerals. The letters will be added in alphabetical order. Even when describing a configuration including a display panel, each display panel or component When explaining common matters, the alphabet will be omitted.

[0165] The display device 50 shown in FIG. 11(B) includes a display panel 100a, a display panel 100b, and It includes a display panel 100c.

[0166] The display panel 100b is disposed so that a part of it overlaps the upper side (display surface side) of the display panel 100a. Specifically, a part of the display area 101a of the display panel 100a and the display panel The transparent portion 110b of the display panel 100b, which transmits visible light, is overlapped with the transparent portion 110b of the display panel 100a. The display area 101a and the area 120b of the display panel 100b that blocks visible light are arranged so as not to overlap each other. They are arranged as follows.

[0167] In addition, a part of the display panel 100c overlaps the upper side (display surface side) of the display panel 100b. Specifically, a part of the display area 101b of the display panel 100b and the display The transparent portion 110c of the display panel 100c, which transmits visible light, is overlapped with the transparent portion 110c of the display panel 100c. The display area 101b of the display panel 100b and the area 120c of the display panel 100c that blocks visible light are overlapped. They are arranged so that they do not look like this.

[0168] Since the transparent portion 110b is overlapped on the display area 101a, the entire display area 101a is not displayed. Similarly, the display area 101b is also overlapped with the transparent portion 110c. By folding the display area 10, the entire display area 10 can be viewed from the display surface side. 1a, a region in which display region 101b and display region 101c are arranged seamlessly (FIG. 11( The area surrounded by the dashed line in B) can be used as the display area 51 of the display device 50.

[0169] Here, the width W of the transparent portion 110 shown in FIG. 11(A) is 0.5 mm or more and 150 mm or less. Preferably, the thickness is 1 mm or more and 100 mm or less, and more preferably, 2 mm or more and 50 mm or less. Since the transparent portion 110 has a function as a sealing region, the width W The larger the distance between the edge of the display panel 100 and the display area 101 can be increased. It is possible to effectively prevent impurities such as water from entering the display area 101 from the outside. In particular, in this configuration example, the transparent portion 110 is provided adjacent to the display area 101. Therefore, it is important to set the width W of the transparent portion 110 to an appropriate value. When an organic EL element is used, the width W of the transparent portion 110 is set to 1 mm or more. It is possible to effectively suppress deterioration of the element. However, the distance between the edge of the display area 101 and the edge of the display panel 100 is set to be within the above range. It is preferable to set it as follows.

[0170] [Configuration example 2] FIG. 11B shows a configuration in which a plurality of display panels 100 are stacked in one direction. A plurality of display panels 100 may be arranged in a stacked manner in both the vertical and horizontal directions.

[0171] FIG. 12A shows an example of a display panel 100 having a different shape of a transparent portion 110 from that shown in FIG. 11A. The display panel 100 shown in FIG. 12A has two adjacent sides of a display area 101. A transparent portion 110 is disposed along the

[0172] FIG. 12B shows a configuration in which the display panels 100 shown in FIG. 12A are arranged two vertically and two horizontally. 12 shows a schematic perspective view of the display device 50. FIG. 12(C) shows the display surface side of the display device 50. 1 is a schematic perspective view as seen from the opposite side.

[0173] In FIG. 12B and FIG. 12C, along the short side of the display area 101a of the display panel 100a, The area is provided so as to overlap with a part of the transparent portion 110b of the display panel 100b. The area along the long side of the display area 101a of the display panel 100a and the transparent area of ​​the display panel 100c The transparent portion 110 of the display panel 100d is overlapped with a part of the bright portion 110c. d is an area along the long side of the display area 101b of the display panel 100b and the display panel 10 The display area 101c of the display unit 100 is provided so as to overlap with a region along the short side of the display area 101c of the display unit 100c.

[0174] Therefore, as shown in FIG. 12B, the display area 101a, the display area 101b, and the display The area where the area 101c and the display area 101d are arranged seamlessly is the display area of ​​the display device 50. It is possible to make it into the region 51.

[0175] Here, a pair of substrates used in the display panel 100 are made of a flexible material. It is preferable that the filter 100 has flexibility. As shown in the display panel 100a in FIG. 1C, the FPC 112a and the like are provided on the display surface side. In this case, a part of the display panel 100a on the side where the FPC 112a is provided is curved, and the FPC 12a is arranged so as to overlap the lower side of the display area 101b of the adjacent display panel 100b. As a result, the FPC 112a can be physically connected to the rear surface of the display panel 100b. The display panels 100a and 100b can be arranged without interfering with each other. When bonding FPC112a and FPC112b together, there is no need to consider the thickness of FPC112a. The upper surface of the transparent portion 110b of the display panel 100b and the upper surface of the display area 101a of the display panel 100a are As a result, the difference in height between the display panel 100b located above the display area 101a can be reduced. This can prevent the end portion from being visually recognized.

[0176] Furthermore, by making each display panel 100 flexible, the display area of ​​the display panel 100b can be The height of the upper surface of the display area 101b is the height of the upper surface of the display area 101a of the display panel 100a. The display panel 100b can be gently curved to match the height of the display. Therefore, except for the area near the overlapping area of ​​the display panel 100a and the display panel 100b, each display area The height of the display area 51 of the display device 50 can be adjusted to be uniform, and the display quality of the image displayed in the display area 51 of the display device 50 can be improved. can be increased.

[0177] In the above, the relationship between the display panels 100a and 100b has been described as an example. The same is true between the two display panels.

[0178] In order to reduce the step between two adjacent display panels 100, For example, the thickness of the display panel 100 is set to 1 mm or less, preferably 3 It is preferable to set the thickness to 00 μm or less, and more preferably 100 μm or less.

[0179] FIG. 13(A) is a schematic top view of the display device 50 shown in FIGS. 12(B) and 12(C) as viewed from the display surface side. This is a schematic diagram.

[0180] Here, the visible light (for example, 400 nm or more to 70 nm) of the transparent portion 110 of one display panel 100 If the transmittance of the display to light with wavelengths of 0 nm or less cannot be increased sufficiently, The brightness of the displayed image decreases depending on the number of display panels 100 that overlap the area 101. For example, in the area A in FIG. 13A, the display area of ​​the display panel 100a In the region B, the display panel 100c is overlapped on the display panel 101a. On the display area 101b of the display panel 100b, a total of two display panels, 100c and 100d, are In the region C, the display area 101a of the display panel 100a is overlapped with the display area 101a of the display panel 100a. A total of three display panels, namely, a display panel 100b, a display panel 100c, and a display panel 100d, are provided. Rule 100 is superimposed.

[0181] In such a case, depending on the number of display panels 100 stacked on the display area 101, It is preferable to perform a correction for locally increasing the gradation of pixels on the image data to be displayed. This is preferable. It is possible to suppress the downward movement.

[0182] In addition, by shifting the position of the display panel 100 arranged at the top, the display panel 10 at the bottom can be It is also possible to reduce the number of display panels 100 that overlap the display area 101 of 0.

[0183] In FIG. 13B, the display panels 100a and 100b are arranged on the display panels 100a and 100b. The distance W of the transparent portion 110 between the display panel 100c and the display panel 100d in one direction (X direction) is In this case, the display panel 100 is arranged with a relative shift of 100 mm. A region D in which one display panel 100 is superimposed on a display region 101, and a region B in which two display panels 1 There are two types of area E with 00 superimposed.

[0184] The display panel may be shifted in a direction (Y direction) perpendicular to the X direction. .

[0185] In addition, when the display panel 100 located at the top is relatively shifted, The outline of the combined display area 101 of the panel 100 is different from a rectangular shape. Therefore, when the display area 51 of the display device 50 is rectangular as shown in FIG. In this case, no image is displayed in the display area 101 of the display panel 100 located outside the display area 101. At this time, the number of pixels in the area where no image is displayed is taken into consideration. The number of pixels in the display area 51 divided by the number of display panels 100 is more than the total number of pixels in the display area 51 divided by the number of display panels 100. The display device 100 may be provided in the display area 101 of the panel 100.

[0186] In the above description, the distance by which each display panel 100 is shifted relative to the other is set to the distance between the transparent portion 11 and the display panel 100. However, the present invention is not limited to this and may be modified depending on the shape of the display panel 100 and the combination thereof. This may be appropriately set in consideration of the shape of display area 51 of display device 50, etc.

[0187] [Cross-section example] FIG. 14A is a schematic cross-sectional view of two display panels 100 bonded together. In FIG. 1A, the FPC 112a is on the display surface side of the display panel 100a, and the FPC 112b is on the display surface side of the display panel 100a. The configuration is shown in which they are connected to the display surface side of the display panel 100b.

[0188] As shown in FIG. 14B, the FPC 112a and the FPC 112b are Alternatively, the display panel 100a or the display panel 100b may be connected to the opposite side to the display surface side. With this configuration, the edge of the lower display panel 100a is Since it is possible to attach it to the back surface of the module 100b, the adhesive area can be increased, and The mechanical strength of the mating portion can be increased.

[0189] As shown in FIG. 14(C) and FIG. 14(D), the display panel 100a and the display A light-transmitting resin layer 131 may be provided to cover the upper surface of the panel 100b. Specifically, the display areas of the display panels 100a and 100b and the display A resin layer 131 is provided to cover the area where the panel 100a and the display panel 100b overlap each other. It is preferable that

[0190] By providing the resin layer 131 across a plurality of display panels 100, the mechanical properties of the display device 50 can be improved. In addition, if the surface of the resin layer 131 is formed to be flat, It is possible to improve the display quality of the image displayed in the display area 51. For example, Coating machines such as curtain coaters, gravure coaters, roll coaters, and spin coaters By using this apparatus, a resin layer 131 with high flatness can be formed.

[0191] The resin layer 131 has a refractive index different from that of the substrate used on the display surface side of the display panel 100 by 20. % or less, preferably 10% or less, and more preferably 5% or less. By using the resin layer 131 having such a refractive index, a refractive index step between the display panel 100 and the resin can be achieved. The refractive index difference is reduced, and the light can be efficiently extracted to the outside. A resin layer 131 is provided so as to cover the step portion between the display panel 100a and the display panel 100b. As a result, the step portion becomes difficult to see, and is not displayed in the display area 51 of the display device 50. This can improve the display quality of the images displayed.

[0192] Examples of materials used for the resin layer 131 include epoxy resin, aramid resin, and acrylic. Uses organic resin films such as resin, polyimide resin, polyamide resin, polyamideimide resin, etc. It is possible.

[0193] As shown in FIGS. 15A and 15B, the display device 50 is supported by a resin layer 131. It is preferable to provide a protective substrate 132. At this time, the resin layer 131 is a protective layer between the display device 50 and the protective substrate. The protective substrate 132 may function as an adhesive layer for adhering the protective substrate 132 to the plate 132. Not only can the surface of the display device 50 be protected, but the mechanical strength of the display device 50 can also be increased. The protective substrate 132 has a light-transmitting property at least in the area overlapping the display area 51. In addition, the protective substrate 132 is made of a material that is not visible in the area other than the area overlapping the display area 51. The light-shielding material may have a light-shielding property so that the light is not shining through the light.

[0194] The protective substrate 132 may have a function as a touch panel. If the protective substrate 132 is flexible and bendable, the protective substrate 132 is also flexible. It is preferable.

[0195] The protective substrate 132 is a substrate used on the display surface side of the display panel 100, or a resin layer 1 The difference in refractive index between the first and second electrodes is 20% or less, preferably 10% or less, and more preferably 5% or less. It is preferable that

[0196] The protective substrate 132 is a film-like plastic substrate, for example, polyimide (PI ), aramid, polyethylene terephthalate (PET), polyethersulfone (PES ), polyethylene naphthalate (PEN), polycarbonate (PC), nylon, poly Ether ether ketone (PEEK), polysulfone (PSF), polyetherimide ( PEI), polyarylate (PAR), polybutylene terephthalate (PBT), silicone A plastic substrate such as a polycarbonate resin substrate or a glass substrate can be used. The substrate 132 is preferably flexible. The protective substrate 132 may also include a fiber. The protective substrate 132 is made of a resin film. Not limited to, transparent nonwoven fabric made of continuous pulp sheets, fibroin Sheets containing artificial spider silk fibers containing proteins, composites made by mixing these with resin, fibers A laminate of a nonwoven fabric made of cellulose fibers with a width of 4 nm to 100 nm and a resin film, A laminate of a sheet containing spider silk fibers and a resin film may also be used.

[0197] As shown in FIGS. 15C and 15D, the display panel 100a and the display panel 10 A resin layer 133 is provided on the surface of the display device 0b opposite to the display surface of the display device 0b, and a protective substrate 134 is provided via the resin layer 133. In this way, the display panel 100a and the display panel 100b may be configured to have a By sandwiching the display device 50 between two protective substrates, the mechanical strength of the display device 50 is further increased. In addition, the resin layer 131 and the resin layer 133 can be formed to have the same thickness, and the protective substrate 13 can be formed to have the same thickness. By using materials of the same thickness for the protective substrate 134 and the display panel 100, For example, the display panel 100 may be disposed in the center of the laminate. When bending the display panel 100, the display panel 100 is positioned at the center in the thickness direction. Accordingly, the lateral stress applied to the display panel 100 is relieved, and damage thereto can be prevented. do.

[0198] As shown in FIGS. 15C and 15D, the display panel 100a and the display panel 10 The resin layer 133 and the protection substrate 134 arranged on the rear side of the FPC 112a are In addition, at this time, the resin layer 133 is preferably provided with an opening for allowing the FPC 11 to be pulled out. 2a, the connection between the display panel 100a and the FPC 112a It is possible to increase the mechanical strength and prevent problems such as the FPC112a peeling off. Similarly, it is preferable to provide a resin layer 133 so as to cover a portion of the FPC 112b.

[0199] The resin layer 133 and the protective substrate 134 provided on the side opposite to the display surface are not necessarily The resin does not need to be transparent, and may be a material that absorbs or reflects visible light. The layer 133 and the resin layer 131, or the protective substrate 134 and the protective substrate 132 are made of the same material. By using such a material, the manufacturing cost can be reduced.

[0200] [Example of display area configuration] Next, a configuration example of the display area 101 of the display panel 100 will be described. FIG. 16(B) is an enlarged schematic top view of region P in FIG. 12(A), and FIG. 16(B) is an enlarged schematic top view of region Q. FIG.

[0201] As shown in FIG. 16A, a plurality of pixels 141 are arranged in a matrix in a display area 101. The display panel 100 is capable of full color display using three colors: red, blue, and green. In this case, pixel 141 is a pixel capable of displaying any one of the above three colors. Alternatively, a pixel that can display white or yellow in addition to the above three colors may be provided. The area including 1 corresponds to the display area 101.

[0202] A wiring 142a and a wiring 142b are electrically connected to one pixel 141. Each of the wirings 142a crosses the wiring 142b and is electrically connected to the circuit 143a. The wirings 142b are electrically connected to the circuit 143b. One of the circuits 143a and 143b functions as a scanning line driver circuit, and the other functions as a signal The circuit 143a and the circuit 143b can function as a line driver circuit. Either one or both of 43b may be omitted.

[0203] In FIG. 16A, a plurality of wirings 1 electrically connected to the circuit 143a or the circuit 143b are The wiring 145 is electrically connected to the FPC 123 in a region not shown. The circuit 143a and the circuit 143b have a function of supplying signals from the outside.

[0204] In FIG. 16A, a region including a circuit 143a, a circuit 143b, and a plurality of wirings 145 is , corresponds to region 120 that blocks visible light.

[0205] In FIG. 16B, the area outside the pixel 141 located at the edge transmits visible light. The transparent portion 110 corresponds to the pixel 141, the wiring 142a, and the wiring In addition, the pixel 141 does not have a member for blocking visible light such as the wiring 14 When 2a or the wiring 142b is transparent to visible light, the transparent portion 110 The insulating layer 21 may be provided so as to extend therefrom.

[0206] Here, the width W of the transparent portion 110 is the width W of the transparent portion 110 provided in the display panel 100. It may also refer to the narrowest width. When the width W of the display panel 100 varies depending on the location, The shortest length can be defined as the width W. In FIG. 16B, the pixel 141 is The distance to the end face (i.e., the width W of the transparent portion 110) is the same in the vertical and horizontal directions of the drawing. This shows the case where

[0207] FIG. 16(C) is a schematic cross-sectional view taken along line A1-A2 in FIG. 16(B). The panel 100 has a pair of substrates (substrate 151 and substrate 152) each of which is light-transmitting. The substrate 151 and the substrate 152 are bonded together by an adhesive layer 153. The substrate on which 41, wiring 142b, etc. are formed is referred to as substrate 151.

[0208] As shown in FIGS. 16B and 16C, a pixel 141 is located at the edge of the display area 101. In this case, the width W of the transparent portion 110 that transmits visible light is the width W of the edge of the substrate 151 or the substrate 152. The length is from the edge of pixel 141 to the edge of pixel 141.

[0209] The edge of the pixel 141 is the most peripheral edge of the member that blocks visible light contained in the pixel 141. Also, it refers to the end of a member located at the end. When a light-emitting element (also called an organic EL element) having a layer containing an organic compound is used, pixel 1 The end of 41 is either an end of the lower electrode, an end of the layer containing a light-emitting organic compound, or an end of the upper electrode. Either one may be used.

[0210] FIG. 17(A) shows a case where the position of the wiring 142a is different from that of FIG. 16(B). FIG. 17B is a schematic cross-sectional view taken along line B1-B2 in FIG. 17(C) is a schematic cross-sectional view taken along line C1-C2 in FIG. 17(A).

[0211] As shown in FIGS. 17A, 17B, and 17C, the wiring 142a is disposed at the edge of the display area 101. When the transparent portion 110 is located, the width W of the transparent portion 110 that transmits visible light is The length is from the end of the wiring 142a to the end of the wiring 142a. In the case where the wiring 142a has a light transmitting property, the area where the wiring 142a is provided is included in the transparent portion 110. It's fine.

[0212] Here, when the density of pixels provided in the display area 101 of the display panel 100 is high, When the display panels 100 are bonded together or when the display panel 100 is bonded to the two display panels shown in the above embodiment, When there is a relative position change, there may be a portion where the pixel arrangement interval becomes discontinuous. There is a match.

[0213] FIG. 18A shows a display area 101a of a display panel 100a provided at the bottom and a display area 101b of a display panel 100b provided at the top. The positional relationship between the display area 101b of the display panel 100b and the display area 101b of the display panel 100b when viewed from the display surface side. FIG. 18A shows the relationship between the display area 101a and the display area 101b. A part of the display area 101a is covered with the transparent portion 110b. is.

[0214] In the example shown in FIG. 18A, adjacent pixels 141a and 141b are relatively inclined in one direction. The arrow in the figure indicates that the display panel 100a is misaligned in the Y direction. In the example shown in FIG. 18(B), the direction of the shift is different from that of the adjacent panel 100b. The pixels 141a and 141b are arranged in a relatively vertical and horizontal direction (X direction and Y direction). ) are shown.

[0215] In the examples shown in FIG. 18(A) and FIG. 18(B), the horizontal and vertical shift distances are In this case, the distance between the display area 101a and the display area 101b is smaller than one pixel. The image data of the image to be displayed in either one of the areas 101b is adjusted according to the distance of the shift. By applying this correction, it is possible to maintain the display quality. When the distance between pixels becomes small, the pixel gradation (brightness) is corrected to be lower. In the case of a large deviation, the pixel gradation (brightness) can be increased. In the case of a misalignment of more than one pixel, the image data is adjusted so that the lower pixels are not driven. In this case, the data may be corrected by shifting it by one column.

[0216] In FIG. 18C, pixels 141a and 141b, which should have been adjacent to each other, are relatively This shows an example where the image is shifted by more than one pixel in one direction (Y direction). If a deviation of more than the distance of the element occurs, the protruding pixel (the pixel with hatching added) is It is sufficient to drive the device so that it is not displayed. The same applies when the deviation occurs in the X direction.

[0217] When bonding a plurality of display panels 100 together, each panel is bonded to prevent misalignment. It is preferable to provide a marker or the like for alignment on the display panel 100. A convex portion and a concave portion are formed on the surface of the display panel 100, and the area where the two display panels 100 overlap is The convex portion and the concave portion may be fitted together (engaged).

[0218] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0219] (Embodiment 4) In this embodiment, a configuration example of a display panel that can be used for a display device according to one embodiment of the present invention will be described. This will be explained with reference to the drawings.

[0220] In this embodiment, a display panel using an organic EL element is mainly illustrated. The display panel that can be used in such a display device is not limited to this. A light-emitting panel or a display panel using other light-emitting elements or display elements may also be used according to one embodiment of the present invention. It can be used in a display device.

[0221] FIG. 19A shows a plan view of a display panel. An example of a cross-sectional view of the transparent portion 810 is shown in FIG. Also shown.

[0222] The display panel shown in the configuration example 1 is a top-emission type display using a color filter method. In the present embodiment, the display panel is a display panel having, for example, R (red), G (green), There are configurations where one color is expressed by three sub-pixels of R, G, B, and W (white), and A pixel expresses one color, and four sub-pixels of R, G, B, and Y (yellow) express one color. The color elements are not particularly limited, and colors other than RGBWY can be used. For example, cyan or magenta may be used.

[0223] The display panel shown in FIG. 19A includes a transparent portion 810, a display portion 804, an operating circuit portion 806, The transparent portion 810 is adjacent to the display portion 804 and is disposed on two sides of the display portion 804. The operating circuit section 806 includes, for example, a scanning line driver circuit and a signal line driver circuit. The transparent section 810 includes a region that transmits visible light. The operating circuit section 806 includes: It includes an area that blocks visible light.

[0224] The display panel shown in FIG. 19(B) includes a substrate 701, an adhesive layer 703, an insulating layer 705, and a plurality of A transistor, a conductive layer 857, an insulating layer 815, an insulating layer 816, an insulating layer 817, and a plurality of light emitting Element, insulating layer 821, adhesive layer 822, colored layer 845, light-shielding layer 847, insulating layer 715, adhesive The adhesive layer 822, the insulating layer 715, the adhesive layer 713 and the substrate 711. The light emitting element and the transistor included in the display unit 804 and the operating circuit unit 806 transmit visible light. The transistor is encapsulated by insulating layer 705 , insulating layer 715 , and adhesive layer 822 .

[0225] The display unit 804 is a transistor on the substrate 701 via the adhesive layer 703 and the insulating layer 705. The light-emitting element 830 includes a lower electrode 820 on an insulating layer 817 and a light-emitting element 830. 31, an EL layer 833 on the lower electrode 831, and an upper electrode 835 on the EL layer 833. That is, the light emitting element 830 includes a lower electrode 831, an upper electrode 835, and a lower electrode 836. 31 and an upper electrode 835 sandwiching an EL layer 833 .

[0226] The lower electrode 831 is electrically connected to the source electrode or the drain electrode of the transistor 820. The end of the lower electrode 831 is covered with an insulating layer 821. The top electrode 835 is preferably transparent to visible light.

[0227] The display unit 804 includes a coloring layer 845 overlapping the light-emitting element 830 and an insulating layer 821 overlapping the light-emitting element 830. The gap between the light emitting element 830 and the colored layer 845 is filled with an adhesive layer 822. It has been done.

[0228] The insulating layer 815 and the insulating layer 816 prevent diffusion of impurities into the semiconductor that constitutes the transistor. In addition, the insulating layer 817 has an effect of reducing surface irregularities caused by the transistor. It is preferable to select an insulating layer having a planarizing function for this purpose.

[0229] In addition, in the region of the display panel where no transistor is present, an insulating layer 815 and / or an insulating The edge layer 816 may not be formed. In particular, the transparent portion 810 may be formed without the insulating layer 815 or / and By not forming the insulating layer 816, the transmittance is improved, which is preferable. In the example shown, the insulating layer 815 is not formed in the insulating layer 810. Silicon nitride can be used for the insulating layer 814 and silicon oxynitride can be used for the insulating layer 816 .

[0230] The operating circuit section 806 is formed by forming a transistor on the substrate 701 via the adhesive layer 703 and the insulating layer 705. In FIG. 19B, the operating circuit portion 806 includes a plurality of transistors. One transistor is shown.

[0231] By using a film with high moisture resistance for the insulating layer 705 or the insulating layer 715, the light-emitting element 830 and the transistor This can prevent impurities such as water from entering the transistor 820, thereby improving the reliability of the display panel. In addition, since the display panel has a substrate, the display panel can be protected from physical impact. The substrate 701 is preferably made of an insulating layer by the adhesive layer 703. The substrate 711 is bonded to the insulating layer 715 via the adhesive layer 713. It is pasted together.

[0232] The conductive layer 857 transmits signals (video signals, clock signals, switch signals, etc.) from the outside to the operating circuit section 806. The external electrodes are electrically connected to the external electrodes that transmit signals such as a start signal or a reset signal, or potentials. In the example shown here, FPC808 is used as the external electrode. In order to prevent an increase in the number of processes, The conductive layer 857 is made of the same material and in the same process as the electrodes and wiring used in the display section and the drive circuit section. Here, the conductive layer 857 is preferably formed as an electrode of the transistor 820. This shows an example made of the same material and in the same process as in the above.

[0233] In the display panel shown in FIG. 19B, the FPC 808 is located on the insulating layer 715. The body 825 is made up of the insulating layer 715, the adhesive layer 822, the insulating layer 817, the insulating layer 816 and the insulating layer 81. The connector 825 is connected to the conductive layer 857 through an opening provided in the FPC The FPC 808 and the conductive layer 857 are electrically connected via the connector 825. To be continued.

[0234] A cross section of two display panels shown in FIG. 19(B) bonded together with an adhesive layer 723 interposed therebetween. An example of the diagram is shown in FIG. 20. Note that, an adhesive layer is used instead of the adhesive layer 723 to bond two display panels together. The flannel may be removably fastened.

[0235] In FIG. 20, the display area 101a of the lower (rear) display panel (the display area 101a shown in FIG. 19(A)) 19A) and the visible light blocking region 120a (corresponding to the operating circuit section 804 shown in FIG. 19A). 06, etc.), and the display area 101b of the upper (front) display panel (FIG. 19(A) 19(A)) and the transparent portion 110b (corresponding to the display portion 804 shown in FIG. 19(A)). The cross-sectional view shown in FIG. 20 shows the two display panels described in the second embodiment. This is also an example of the overlapping portion of the panels 100a and 100b (region 170 in FIG. 14(A)).

[0236] In FIG. 20, the display panel located on the upper side, which is the display surface side, has a transparent portion 810 as a display portion. The display unit 804 of the lower display panel and the display unit 805 of the upper display panel are adjacent to each other. Therefore, the transparent portion 810 is overlapped with the transparent portion 810 between the display areas of the two overlapping display panels. This allows the non-display area to be reduced or even eliminated. This makes it possible to realize a large display device in which the seams of the display panels are hardly noticeable.

[0237] In addition, in FIG. 20, the display portion 804 of the lower display panel and the transparent portion of the upper display panel Between the upper display 810 and the lower display 820 is an adhesive layer 723 that transmits visible light. The difference in refractive index between the substrate 711 of the panel and / or the substrate 701 of the lower display panel is small. With this configuration, the upper part of the display unit 804 of the lower display panel It is possible to reduce reflection at the interface due to the difference in refractive index of the laminate located on the side. It becomes possible to suppress display unevenness and brightness unevenness in large display devices.

[0238] [Examples of materials and forming methods] Next, materials that can be used for the display panel will be described. The explanation of the configuration may be omitted.

[0239] The substrate can be made of materials such as glass, quartz, organic resin, metal, and alloy. The substrate on the side from which light from the optical element is extracted is made of a material that transmits the light.

[0240] In particular, it is preferable to use a flexible substrate. For example, a substrate made of organic resin or a flexible material may be used. Any thickness of glass, metal or alloy may be used.

[0241] Since organic resin has a smaller specific gravity than glass, when organic resin is used as a flexible substrate, This is preferable because it allows the display panel to be made lighter than when glass is used.

[0242] It is preferable to use a highly tough material for the substrate. This makes it possible to improve impact resistance and fracture resistance. For example, it is possible to realize a display panel that is less susceptible to damage using an organic resin substrate or a thin metal substrate. By using an alloy substrate, it is lighter and less susceptible to breakage than when using a glass substrate. It is possible to realize a simple display panel.

[0243] Metallic and alloy materials have high thermal conductivity and can easily conduct heat across the entire substrate, making it ideal for display panels. This is preferable because it can suppress local temperature rises in the panel. The thickness of the substrate is preferably 10 μm or more and 200 μm or less, and more preferably 20 μm or more and 50 μm or less. It is more preferable to do so.

[0244] The material constituting the metal substrate or alloy substrate is not particularly limited. For example, aluminum The preferred materials are aluminum, copper, nickel, or alloys of metals such as aluminum alloys and stainless steel. It can be used appropriately.

[0245] In addition, if a material with high thermal emissivity is used for the substrate, the surface temperature of the display panel will increase. This can prevent damage to the display panel and a decrease in reliability. A stack of layers with high emissivity (for example, metal oxides or ceramic materials can be used) It may also be of this structure.

[0246] As a substrate having flexibility and light transmission, a film-like plastic substrate, for example, Polyimide (PI), Aramid, Polyethylene terephthalate (PET), Polyethersulfone Polyethylene naphthalate (PEN), Polycarbonate (PC), Nylon, polyetheretherketone (PEEK), polysulfone (PSF), Polyetherimide (PEI), Polyarylate (PAR), Polybutylene terephthalate (P A plastic substrate such as BT or silicone resin can be used. The substrate may contain fibers, for example, prepregs. The plate is not limited to resin film, but can also be a transparent nonwoven fabric made from continuous pulp sheets, Sheets containing artificial spider silk fibers, which contain a protein called fibroin, and these and resin A composite material made of cellulose fibers having a fiber width of 4 nm to 100 nm. A laminate of a woven fabric and a resin film, or a laminate of a sheet containing artificial spider silk fibers and a resin film may also be used.

[0247] As for the flexible substrate, the layer using the above material acts as a hard layer to protect the surface of the device from scratches. Coating layers (e.g., silicon nitride layers, etc.) and layers of materials that can disperse pressure (e.g., aramid layers, etc.) The insulating layer may be laminated with a layer of a polymeric mide resin or the like.

[0248] The flexible substrate may be used by laminating a plurality of layers. In particular, a structure having a glass layer is preferable. This will improve the barrier properties against water and oxygen, making it possible to create a highly reliable display panel. can.

[0249] For example, a flexible substrate in which a glass layer, an adhesive layer, and an organic resin layer are laminated from the side closer to the light emitting element is The thickness of the glass layer is preferably 20 μm or more and 200 μm or less. The thickness of the glass layer is preferably 25 μm or more and 100 μm or less. A glass layer having such a thickness is highly resistant to water and oxygen. The organic resin layer can be made thicker than 1 mm thick and has high barrier properties against water and flexibility. The thickness of the thin film is set to 0 μm or more and 200 μm or less, and preferably 20 μm or more and 50 μm or less. By placing the mechanical resin layer on the outside of the glass layer, breakage or cracks in the glass layer are suppressed. The mechanical strength can be improved by using such a composite material of glass material and organic resin. By applying this to substrates, it is possible to create extremely reliable flexible display panels. can.

[0250] A method for forming a flexible display panel will now be described.

[0251] For the sake of convenience, the components including pixels and driving circuits, and the components including optical members such as color filters will be referred to as “components.” A structure including a touch sensor circuit or other functional members is called an element layer. The element layer includes, for example, a display element, and in addition to the display element, The pixel may include wiring for connecting the pixel and an element such as a transistor for use in a circuit.

[0252] In addition, the support having an insulating surface on which the element layer is formed is referred to as a substrate. Let us assume that.

[0253] As a method for forming an element layer on a flexible substrate, a method for forming an element layer directly on the substrate can be used. and a method of forming an element layer on a supporting substrate having a different rigidity from the substrate, and then bonding the element layer and the supporting substrate. and a method of peeling off the substrate and transferring the element layer onto the substrate.

[0254] When the material constituting the base material has heat resistance against the heat applied in the process of forming the element layer, It is preferable to form the element layer directly on the substrate, since this simplifies the process. When the element layer is formed in a state where the substrate is fixed to the support substrate, the substrate can be easily transported within and between devices. This is preferable because it is easier.

[0255] In addition, when a method is used in which an element layer is formed on a supporting substrate and then transferred to the substrate, the supporting substrate is first A release layer and an insulating layer are laminated on the support substrate, and an element layer is formed on the insulating layer. The element layer is peeled off from the support substrate and transferred to the substrate. It is only necessary to select a material that allows peeling to occur at the interface of the insulating layer or in the peeling layer. According to the method, in the step of forming the element layer, a treatment is performed at a temperature higher than the heat resistance temperature of the base material. This makes it possible to improve the reliability of the display panel.

[0256] For example, a layer containing a high melting point metal material such as tungsten as a peeling layer and an acid of the metal material A layer containing a silicon nitride is laminated on the peeling layer, and a silicon nitride or silicon oxynitride is laminated on the peeling layer as an insulating layer. It is preferable to use a layer in which multiple layers of ferrite are laminated. For example, the device layer can be processed at high temperatures, improving reliability. It is possible to further reduce impurities contained in the device layer and to further improve the crystallinity of the semiconductors contained in the device layer. It is possible.

[0257] Peeling can be achieved by applying mechanical force to pull the film off or by removing the peeling layer by etching. Alternatively, liquid may be dropped onto a portion of the peeled interface and allowed to penetrate the entire peeled interface. This is also possible.

[0258] In addition, when peeling is possible at the interface between the support substrate and the insulating layer, it is not necessary to provide a peeling layer. For example, glass is used as the support substrate, and an organic resin such as polyimide is used as the insulating layer. A part of the organic resin is locally heated by laser light or the like to form a starting point for peeling; The separation may be performed at the interface between the glass and the insulating layer. Alternatively, the separation may be performed at the interface between the support substrate and the insulating layer containing an organic resin. A layer of highly thermally conductive material such as a metal or semiconductor is placed between the electrodes, and heated by passing an electric current through it. In this case, the insulating layer containing the organic resin may be peeled off by heating the insulating layer to a temperature that is easy to peel off. The border layer can also be used as a substrate.

[0259] The adhesive layer can be made of a variety of resins, including photo-curable resins such as ultraviolet curable resins, reactive curable resins, thermosetting resins, and anaerobic resins. Various curable resins such as epoxy resins, Acrylic resin, silicone resin, phenolic resin, polyimide resin, imide resin, PVC (Polyvinyl chloride) resin, PVB (Polyvinyl butyral) resin, EVA (Ethylene In particular, materials with low moisture permeability such as epoxy resin are preferred. It is preferable to use a two-part mixed resin. Also, an adhesive sheet or the like may be used.

[0260] The resin may contain a desiccant. For example, an oxide of an alkaline earth metal (an acid The material used is one that adsorbs moisture by chemical adsorption, such as calcium chloride or barium oxide. Alternatively, materials such as zeolite and silica gel can absorb moisture by physical adsorption. If a desiccant is included, impurities such as moisture may penetrate into the light emitting element. This is preferable because it can suppress the intrusion of foreign matter and improve the reliability of the display panel.

[0261] In addition, by mixing a filler having a high refractive index or a light scattering material into the resin, a light emitting element can be formed. For example, titanium oxide, barium oxide, Zeolite, zirconium, etc. can be used.

[0262] The insulating layers 705 and 715 are preferably made of insulating films having high moisture resistance. Alternatively, the insulating layers 705 and 715 may have a function of preventing impurities from diffusing into the light-emitting element. It is preferred that the compound has the formula:

[0263] As insulating films with high moisture resistance, films made of nitrogen and silicon such as silicon nitride film and silicon oxide nitride film are used. and films containing nitrogen and aluminum, such as an aluminum nitride film. A silicon oxide film, a silicon oxynitride film, an aluminum oxide film, or the like may also be used.

[0264] For example, the water vapor permeability of a highly moisture-resistant insulating film is 1×10 -5 [g / (m 2 ·day) ] or less, preferably 1 × 10 -6 [g / (m 2 ·day)] or less, preferably 1×1 0 -7 [g / (m 2 ·day)] or less, and more preferably 1×10 -8 [g / (m 2 d ay)] below.

[0265] In the display panel, at least the insulating layer on the light-emitting surface side of the insulating layer 705 or the insulating layer 715 is The border layer must transmit light emitted from the light emitting element. In the case where the insulating layer 705 or the insulating layer 715 has a transparent layer 15, the insulating layer 705 or the insulating layer 715 is a transparent layer. The insulating layer has a transmittance at wavelengths of 400 nm to 800 nm that is higher than that of the other insulating layer. A high average is preferred.

[0266] The insulating layer 705 and the insulating layer 715 preferably contain oxygen, nitrogen, and silicon. For example, the insulating layer 705 and the insulating layer 715 preferably contain silicon oxynitride. In addition, the insulating layer 705 or the insulating layer 715 may include silicon nitride or silicon nitride oxide. The insulating layer 705 and the insulating layer 715 are preferably formed of a silicon oxynitride film or a silicon nitride film. It is preferable that the silicon oxynitride film and the silicon nitride film are in contact with each other. Silicon oxide films and silicon nitride films are alternately laminated, and anti-phase interference occurs frequently in the visible range. By doing so, the transmittance of the laminate in the visible region can be increased.

[0267] The structure of the transistor in the display panel is not particularly limited. For example, The transistor may be a top gate transistor or an inverted staggered transistor. The transistor may have either a top gate type or a bottom gate type structure. The semiconductor material is not particularly limited, and examples thereof include silicon, germanium, and organic semiconductors. Or, indium, gallium, and zinc, such as In-Ga-Zn metal oxides. An oxide semiconductor including at least one of these may be used.

[0268] The crystallinity of the semiconductor material used in the transistor is not particularly limited. A semiconductor having crystallinity (a microcrystalline semiconductor, a polycrystalline semiconductor, a single crystal semiconductor, or a semiconductor having a partially crystalline region) If a semiconductor having crystallinity is used, the This is preferable because it is possible to suppress deterioration of the resistor characteristics.

[0269] In order to stabilize the characteristics of the transistor, it is preferable to provide an undercoat film. , silicon oxide film, silicon nitride film, silicon oxynitride film, silicon nitride oxide film, etc. The base film can be formed by a single layer or a multilayer structure using an organic insulating film. , CVD (Chemical Vapor Deposition) method (Plasma CVD method, thermal CVD method, MOCVD (Metal Organic CVD) method, etc.), ALD (Atomic Layer Deposition), coating, printing, etc. In addition, the undercoat film does not have to be provided if it is not necessary. The layer 705 can also serve as an underlayer for the transistor.

[0270] The light-emitting element may be a self-emitting element that is illuminated by a current or a voltage. The category includes devices whose light intensity can be controlled. For example, light-emitting diodes (LEDs), organic An EL element, an inorganic EL element, etc. can be used.

[0271] The light-emitting elements are top emission type, bottom emission type, and dual emission type. The electrode on the light extraction side is made of a conductive film that transmits visible light. In addition, it is preferable to use a conductive film that reflects visible light for the electrode on the side from which light is not extracted. stomach.

[0272] The conductive film that transmits visible light is, for example, indium oxide or indium tin oxide (ITO). Indium Tin Oxide, Indium Zinc Oxide, Zinc Oxide (ZnO), Ga The metal can be formed by using zinc oxide doped with sodium. Magnesium, nickel, tungsten, chromium, molybdenum, iron, cobalt, copper, palladium Metallic materials such as aluminum or titanium, alloys containing these metallic materials, or alloys of these metallic materials Nitrides (for example, titanium nitride) can also be used by forming them thin enough to have light transmission properties. Also, a laminated film of the above materials can be used as the conductive layer. For example, silver and By using a laminated film of magnesium alloy and ITO, the electrical conductivity can be increased. It is preferable to use graphene or the like.

[0273] The conductive film that reflects visible light is made of, for example, aluminum, gold, platinum, silver, nickel, tungsten, etc. Metallic materials such as stainless steel, chromium, molybdenum, iron, cobalt, copper, or palladium, or In addition, the above-mentioned metal materials and alloys may be used. Tungsten, neodymium, germanium, etc. may be added. Aluminum alloy, aluminum-nickel alloy, aluminum-neodymium alloy, aluminum Aluminum-containing alloys, such as aluminum-nickel-lanthanum alloys (Al-Ni-La) (aluminum alloy), silver-copper alloy, silver-palladium-copper alloy (Ag-Pd-Cu (also referred to as APC), which can be formed using an alloy containing silver, such as an alloy of silver and magnesium. An alloy containing silver and copper is preferable because of its high heat resistance. By laminating a metal film or a metal oxide film in contact with the aluminum alloy film, oxidation of the aluminum alloy film is suppressed. Examples of materials for the metal film and metal oxide film include titanium and titanium oxide. In addition, the conductive film that transmits visible light and a film made of a metal material may be laminated. For example, a laminated film of silver and ITO, or a laminated film of silver-magnesium alloy and ITO, etc. It is possible.

[0274] The material used for the lower electrode 831 and the upper electrode 835 is the conductive film that transmits visible light. Alternatively, a conductive film that reflects visible light can be used.

[0275] The electrodes may be formed by vapor deposition or sputtering. The shape is created using a discharge method such as the ink jet method, a printing method such as the screen printing method, or a plating method. It can be achieved.

[0276] A voltage higher than the threshold voltage of the light-emitting element is applied between the lower electrode 831 and the upper electrode 835. When this occurs, holes are injected into the EL layer 833 from the anode side, and electrons are injected from the cathode side. The electrons and holes are recombined in the EL layer 833, and the light-emitting material contained in the EL layer 833 emits light. It shines.

[0277] The EL layer 833 has at least a light-emitting layer. The EL layer 833 has the following layers other than the light-emitting layer: Materials with high hole injection properties, materials with high hole transport properties, hole blocking materials, materials with high electron transport properties A material with high electron injection properties or a bipolar material (high electron transport and hole transport properties) The layer may further include a layer containing a material such as a metal.

[0278] The EL layer 833 can be made of either a low molecular weight compound or a high molecular weight compound. The layers constituting the EL layer 833 may each be formed by deposition (vacuum deposition). It can be formed by methods such as the transfer method, printing method, inkjet method, coating method, etc. Cut.

[0279] The light emitting element 830 may contain two or more luminescent materials, which may result in, for example, a white For example, it is possible to realize a light-emitting element in which the emission of each of two or more luminescent materials is of complementary colors. By selecting a light-emitting material so that the above relationship holds, white light can be obtained. For example, Luminescent materials that emit light of R (red), G (green), B (blue), Y (yellow), or O (orange), It is possible to use a luminescent material that emits light containing two or more of the R, G, and B spectral components. For example, a light-emitting substance that emits blue light and a light-emitting substance that emits yellow light may be used. In this case, the emission spectrum of the luminescent material that emits yellow light contains green and red spectral components. In addition, the emission spectrum of the light emitting element 830 is preferably in the visible region (for example 350nm to 750nm, or 400nm to 800nm, etc.) It is preferable that the peak is one of the above.

[0280] The EL layer 833 may have a plurality of light-emitting layers. The optical layers may be laminated in contact with each other or with a separating layer interposed therebetween. For example, a separation layer may be provided between the fluorescent light-emitting layer and the phosphorescent light-emitting layer.

[0281] The separation layer is, for example, a layer for converting an excited state of a phosphorescent material generated in the phosphorescent-emitting layer into an excited state of a fluorescent-emitting layer. Prevents energy transfer (especially triplet energy transfer) to fluorescent materials through the Dexter mechanism The separation layer may be provided to prevent the separation from occurring. The thickness of the separation layer may be as small as several nm. .1nm to 20nm, or 1nm to 10nm, or 1nm to 5nm The separating layer may be made of a single material (preferably a bipolar material) or of multiple materials. The material includes a hole transporting material and an electron transporting material.

[0282] The separation layer may be formed using a material contained in the light-emitting layer that is in contact with the separation layer. This makes it easier to fabricate the light-emitting device and reduces the driving voltage. When the separation layer is made of a host material, an assist material, and a phosphorescent material (guest material), The separation layer may be formed of a host material and an assist material. The phosphorescent layer has a region that does not contain the material, and the phosphorescent layer has a region that contains the phosphorescent material. The separation layer and the phosphorescent light-emitting layer can be deposited independently with or without phosphorescent material. In addition, by adopting such a configuration, the separation layer and the phosphorescent layer can be formed in the same chamber. This makes it possible to reduce the manufacturing cost.

[0283] The light emitting element 830 may be a single element having one EL layer, or a charge emitting element. The device may be a tandem device having a plurality of EL layers stacked with a green layer interposed therebetween.

[0284] It is preferable that the light emitting element is provided between a pair of highly moisture-proof insulating films. This makes it possible to prevent impurities such as water from entering the light emitting element, and thus prevents a decrease in the reliability of the display panel. It can be suppressed.

[0285] The insulating layer 815 and the insulating layer 816 may be, for example, a silicon oxide film or a silicon oxynitride film. An inorganic insulating film such as an insulating film of silicon oxide or an aluminum oxide film can be used. The insulating layer 817 and the insulating layer 816 may be formed of different materials. The insulating layer 817a and the insulating layer 817b may be made of, for example, polyimide, acrylic, polyamide ... Organic materials such as polyimide amide and benzocyclobutene resins can be used. In addition, low dielectric constant materials (low-k materials) can be used. Each insulating layer may be formed by laminating.

[0286] The insulating layer 821 is formed using an organic insulating material or an inorganic insulating material. For example, polyimide resin, polyamide resin, acrylic resin, siloxane resin, epoxy resin, etc. In particular, photosensitive resin materials can be used. An opening is formed on the bottom electrode 831, and the side wall of the opening is formed with a continuous curvature. It is preferable to form the surface so as to have an inclined surface.

[0287] The method for forming the insulating layer 821 is not particularly limited, but may be a photolithography method, a sputtering method, or the like. , deposition method, droplet ejection method (inkjet method, etc.), printing method (screen printing, offset printing It is advisable to use a printing method, etc.

[0288] A display panel that functions as an electrode or wiring of a transistor, or an auxiliary electrode of a light-emitting element, etc. The conductive layer used may be, for example, molybdenum, titanium, chromium, tantalum, tungsten, or aluminum. Metal materials such as aluminum, copper, neodymium, scandium, etc., or alloy materials containing these elements The conductive layer can be formed as a single layer or a laminated layer using a conductive metal oxide. The conductive metal oxide may be indium oxide (In2O3, etc.). ), tin oxide (SnO2, etc.), ZnO, ITO, indium zinc oxide (In2O3-Z nO, etc.) or a material obtained by incorporating silicon oxide into these metal oxide materials can be used. do.

[0289] The colored layer is a colored layer that transmits light of a specific wavelength band. For example, red, green, blue, or A color filter that transmits light in the yellow wavelength range can be used for each color layer. Using various materials, we have developed printing methods, inkjet methods, and etching methods using photolithography. The white sub-pixel is formed at a desired position by a film-forming method or the like. A transparent or white resin may be placed on top of it.

[0290] The light-shielding layer is provided between adjacent colored layers. The light-shielding layer blocks light from the adjacent light-emitting elements. The colored layer is provided with an end portion that is light-shielding to suppress color mixing between adjacent light-emitting elements. By providing the light-shielding layer so as to overlap the light-shielding layer, it is possible to suppress light leakage. Materials that block light emitted from the light-emitting element can be used, including, for example, metal materials, pigments, and dyes. The black matrix may be formed using a resin material that includes the light-shielding layer. If the LED is provided in an area other than the display area, unintended light leakage due to guided light can be suppressed. This is preferable.

[0291] In addition, an overcoat may be provided to cover the colored layer and the light-shielding layer. By doing so, it is possible to prevent impurities contained in the colored layer from diffusing into the light emitting element. The overcoat is made of a material that transmits light emitted from the light emitting element, such as silicon nitride. It uses inorganic insulating films such as silicon oxide films, and organic insulating films such as acrylic films and polyimide films. Alternatively, the insulating film may have a laminated structure of an organic insulating film and an inorganic insulating film.

[0292] In addition, when the material for the adhesive layer is applied onto the colored layer and the light-shielding layer, the material for the overcoat is It is preferable to use a material that has high wettability with respect to the material of the adhesive layer. As the substrate, an oxide conductive film such as an ITO film or a metal film such as an Ag film that is thin enough to have transparency is used. It is preferred to use a membrane.

[0293] As a connector, various anisotropic conductive films (ACF: Anisotropic Conductive Films) Conductive Film) and Anisotropic Conductive Paste (ACP) c Conductive Paste) can be used.

[0294] This embodiment mode can be combined with other embodiment modes as appropriate.

[0295] (Embodiment 5) In this embodiment, a touch panel that can be used in the display device of one embodiment of the present invention will be described. The display panel will be described with reference to the drawings. For this, the above description can also be referred to. However, the present invention is not limited to this. For example, the present invention may be applied to other touch panels as exemplified in the above embodiment. A touch panel using the above element (such as a display element) can also be used in the display device of one embodiment of the present invention. can be done.

[0296] [Configuration example 1] Fig. 21(A) is a top view of a touch panel. Fig. 21(B) is a diagram showing the touch panel shown by the dashed line in Fig. 21(A). 21(C) is a cross-sectional view taken along the dashed line in FIG. FIG. 1 is a cross-sectional view between EF.

[0297] The touch panel 390 shown in FIG. 21A includes a display unit 301 (which also serves as an input unit), a scanning line Drive circuit 303g(1), imaging pixel drive circuit 303g(2), image signal line drive circuit 303 The image pickup device 303 includes an image pickup signal line driver circuit 303s(1) and an image pickup signal line driver circuit 303s(2).

[0298] The display unit 301 includes a plurality of pixels 302 and a plurality of imaging pixels 308 .

[0299] The pixel 302 includes a number of sub-pixels, each of which includes a light-emitting element and a pixel circuit.

[0300] The pixel circuit can supply power to drive the light emitting element. The pixel circuit can receive a selection signal The pixel circuit is electrically connected to a wiring that can supply an image signal. The semiconductor device is electrically connected to a wiring that can be connected to the semiconductor device.

[0301] The scanning line driver circuit 303g(1) can supply a selection signal to the pixel 302.

[0302] The image signal line driver circuit 303s(1) can supply an image signal to the pixel 302. .

[0303] A touch sensor can be configured using the imaging pixels 308. 308 can detect a finger or the like touching the display unit 301.

[0304] The imaging pixel 308 includes a photoelectric conversion element and an imaging pixel circuit.

[0305] The image pickup pixel circuit can drive the photoelectric conversion element. The image pickup pixel circuit receives a control signal. The imaging pixel circuit is electrically connected to a wiring that can supply a power supply potential. The signal line is electrically connected to a wiring that can supply the signal.

[0306] The control signal may be, for example, a signal to select an imaging pixel circuit that reads out a recorded imaging signal. a signal for initializing the imaging pixel circuit; and a signal for detecting when the imaging pixel circuit detects light. Examples of such signals include signals that can determine the time to be detected.

[0307] The imaging pixel drive circuit 303g(2) can supply a control signal to the imaging pixel 308. do.

[0308] The imaging signal line driving circuit 303s(2) can read out imaging signals.

[0309] As shown in FIGS. 21B and 21C, the touch panel 390 includes a substrate 701, an adhesive layer 70, and a 3, an insulating layer 705, a substrate 711, an adhesive layer 713, and an insulating layer 715. 701 and substrate 711 are attached with an adhesive layer 360 .

[0310] The substrate 701 and the insulating layer 705 are bonded together with an adhesive layer 703. The insulating layer 715 is attached with an adhesive layer 713 .

[0311] Substrate 701 and substrate 711 are preferably flexible.

[0312] For materials that can be used for the substrate, adhesive layer, and insulating layer, see embodiment 2. It is possible.

[0313] The pixel 302 includes a subpixel 302R, a subpixel 302G, and a subpixel 302B (FIG. 2). 1(C)). The subpixel 302R has a light-emitting module 380R, and the subpixel 302G has The subpixel 302A has a light emitting module 380G, and the subpixel 302B has a light emitting module 380B.

[0314] For example, the sub-pixel 302R includes a light-emitting element 350R and a pixel circuit. The transistor 302t can provide power to the element 350R. The module 380R includes a light emitting element 350R and an optical element (for example, a colored layer that transmits red light). 367R).

[0315] The light emitting element 350R is formed by arranging a lower electrode 351R, an EL layer 353, and an upper electrode 352 in this order. (FIG. 21(C)).

[0316] The EL layer 353 includes a first EL layer 353a, an intermediate layer 354, and a second EL layer 353b. They are laminated in this order.

[0317] In order to efficiently extract light of a specific wavelength, the light-emitting module 380R is equipped with a microphone. Specifically, it is possible to efficiently extract specific light. The EL layer is placed between a film that reflects visible light and a film that is semi-reflective and semi-transmissive, which are arranged as shown in the figure. Good too.

[0318] For example, the light emitting module 380R includes an adhesive layer that contacts the light emitting element 350R and the color layer 367R. It has a layer 360.

[0319] The colored layer 367R is located so as to overlap the light emitting element 350R. A part of the light emitted by R is transmitted through the adhesive layer 360 and the colored layer 367R and is radiated as shown by the arrows in the figure. The light is emitted to the outside of the light emitting module 380R as shown in FIG.

[0320] The touch panel 390 includes a light-shielding layer 367BM. The light-shielding layer 367BM is a colored layer (e.g. For example, the colored layer 367R is provided so as to surround the colored layer 367.

[0321] The touch panel 390 has an anti-reflection layer 367p at a position overlapping the display unit 301. As the antireflection layer 367p, for example, a circular polarizing plate can be used.

[0322] The touch panel 390 includes an insulating layer 321. The insulating layer 321 includes a transistor 302t. The insulating layer 321 is used to flatten the unevenness caused by the pixel circuits and the imaging pixel circuits. In addition, the layer can be used as a layer for diffusing impurities into the transistor 302t, etc. An insulating layer having a layer capable of suppressing diffusion laminated thereon can be applied to the insulating layer 321. do.

[0323] The touch panel 390 has a partition wall 328 that overlaps an end of the lower electrode 351R. A spacer 329 for controlling the distance between the substrate 701 and the substrate 711 is provided on the partition wall 328 .

[0324] The image signal line driver circuit 303s(1) includes a transistor 303t and a capacitor 303c. The driver circuit can be formed on the same substrate as the pixel circuit in the same process. As shown in FIG. 3B, the transistor 303t has a second gate 304 on the insulating layer 321. The second gate 304 is electrically connected to the gate of the transistor 303t. Alternatively, they may be provided with different potentials. A second gate 304 may be provided for transistor 308t, transistor 302t, etc.

[0325] The imaging pixel 308 includes a photoelectric conversion element 308p and an imaging pixel circuit. The image pickup pixel circuit can detect light irradiated to the photoelectric conversion element 308p. Includes Transistor 308t.

[0326] For example, a pin-type photodiode can be used as the photoelectric conversion element 308p.

[0327] The touch panel 390 has wiring 311 through which a signal can be supplied, and a terminal 319 The wiring 311 is provided to supply signals such as image signals and synchronization signals. The FPC 309 is electrically connected to the terminal 319. A printed wiring board (PWB) may be attached.

[0328] In addition, transistors such as transistor 302t, transistor 303t, and transistor 308t The transistors can be formed in the same process, or they can be formed in different processes. Good too.

[0329] [Configuration example 2] 22(A) and (B) are perspective views of the touch panel 505A. Representative components are shown. Figure 23(A) is a cross section between the dashed line GH shown in Figure 22(A). FIG.

[0330] As shown in FIGS. 22A and 22B, the touch panel 505A includes a display unit 501, a scanning line The touch panel 50 includes a driving circuit 303g(1) and a touch sensor 595. 5A includes a substrate 701, a substrate 711, and a substrate 590.

[0331] The touch panel 505A includes a plurality of pixels and a plurality of wirings 311. 1 can supply signals to the pixels. A plurality of wirings 311 are arranged on the outer periphery of the substrate 701. The terminal 319 is connected to the FPC509 (1 ) and electrically connect it to

[0332] The touch panel 505A includes a touch sensor 595 and a plurality of wirings 598. The wiring 598 is electrically connected to the touch sensor 595. The terminal is connected to the outer periphery of FPC509. In FIG. 22(B), for clarity, the back surface of the substrate 590 is The electrodes and wiring of the touch sensor 595 provided on the side (the side facing the substrate 701) are indicated by solid lines. As shown in Fig.

[0333] For example, a capacitive touch sensor can be used as the touch sensor 595. There are various types of capacitive touch panels, such as surface capacitive touch panels and projected capacitive touch panels. This shows a case where a capacitive touch sensor is applied.

[0334] The projected capacitive type is classified into self-capacitance type, mutual capacitance type, etc., mainly based on the difference in the driving method. The mutual capacitance method is preferable because it enables simultaneous multi-point detection.

[0335] The touch sensor 595 can detect the proximity or contact of a detection object such as a finger. Various sensors can be applied.

[0336] The projected capacitive touch sensor 595 has an electrode 591 and an electrode 592. 591 is electrically connected to one of the multiple wirings 598, and the electrode 592 is connected to the multiple wirings 598. The other of the two is electrically connected to the other of the two.

[0337] As shown in FIGS. 22(A) and 22(B), the electrodes 592 are arranged in a single direction. The shape is such that two quadrilaterals are connected at their corners.

[0338] The electrode 591 is quadrilateral and is repeatedly arranged in a direction intersecting the direction in which the electrodes 592 extend. In addition, the multiple electrodes 591 are not necessarily arranged in a direction perpendicular to one electrode 592. The axial alignment of the conductors need not be spaced apart from each other, but may be arranged at an angle less than 90 degrees.

[0339] The wiring 594 is provided so as to intersect with the electrode 592. The wiring 594 is provided so as to sandwich the electrode 592. Two electrodes 591 are electrically connected. At this time, the surface of the intersection of the electrode 592 and the wiring 594 It is preferable to have a shape that minimizes the area where the electrodes are not provided. The area can be reduced, and the unevenness of the transmittance can be reduced. It is possible to reduce unevenness in the brightness of light.

[0340] The shapes of the electrodes 591 and 592 are not limited to this, and may take various shapes. For example, multiple electrodes 591 are arranged with as few gaps as possible, and the electrodes 591 are connected to each other via an insulating layer. 92 may be provided at intervals so that there is an area that does not overlap with the electrode 591. At this time, a dummy electrode that is electrically insulated from the two adjacent electrodes 592 is placed between the adjacent electrodes 592. Providing an electrode is preferable because it makes it possible to reduce the area of ​​the region with different transmittance.

[0341] A more specific example of the configuration of the touch sensor 595 will be described later.

[0342] As shown in FIG. 23A, the touch panel 505A includes a substrate 701, an adhesive layer 703, an insulating layer 704, and a The substrate 701 includes an edge layer 705, a substrate 711, an adhesive layer 713, and an insulating layer 715. and substrate 711 are attached with adhesive layer 360 .

[0343] The adhesive layer 597 is formed on the substrate 590 so that the touch sensor 595 overlaps the display unit 501. It is attached to a plate 711. The adhesive layer 597 is light-transmitting.

[0344] The electrode 591 and the electrode 592 are formed using a light-transmitting conductive material. The conductive materials that can be used are indium oxide, indium tin oxide, and indium zinc oxide. Conductive oxides such as zinc oxide and zinc oxide doped with gallium can be used. A film containing graphene may also be used. The film containing graphene may be formed, for example, in a film shape. The graphene oxide-containing film can be reduced to form the film. The method for removing the resin from the resin can be, for example, a method of applying heat.

[0345] In addition, the conductive films such as the electrodes 591, the electrodes 592, and the wiring 594, that is, the touch panel, are formed. It is desirable to use materials with low resistance for wiring and electrodes. Indium zinc oxide, ZnO, silver, copper, aluminum, carbon nanotubes, graphene Furthermore, very thin (for example, a few nanometers in diameter) Metal nanowires made of multiple conductors may also be used. For example, metal nanowires, carbon nanowires, etc. are used for electrodes, such as pixel electrodes and common electrodes, in display elements. Nanotubes, graphene, etc. may also be used.

[0346] After forming a film of a light-transmitting conductive material on a substrate 590 by a sputtering method, By using various patterning techniques such as lithography, unnecessary parts are removed to form electrodes 59. 1 and electrode 592 can be formed.

[0347] The electrodes 591 and 592 are covered with an insulating layer 593. Openings are provided in the insulating layer 593 and wiring 594 electrically connects adjacent electrodes 591 . The light-transmitting conductive material can increase the aperture ratio of the touch panel, so that the wiring 594 In addition, a material having a higher conductivity than the electrodes 591 and 592 can be preferably used. Since the electrical resistance can be reduced, it can be suitably used for the wiring 594 .

[0348] An insulating layer is provided to cover the insulating layer 593 and the wiring 594 to protect the touch sensor 595. It is possible.

[0349] Furthermore, the connection layer 599 electrically connects the wiring 598 and the FPC 509(2).

[0350] The display unit 501 has a plurality of pixels arranged in a matrix. Since they are similar, the description will be omitted.

[0351] Various transistors can be used in touch panels. The configuration when the above-mentioned capacitor is applied is shown in FIGS.

[0352] For example, a semiconductor layer including an oxide semiconductor, amorphous silicon, or the like is shown in FIG. The same can be applied to the transistor 302t and the transistor 303t.

[0353] For example, a semiconductor containing polycrystalline silicon crystallized by a process such as laser annealing The layer is applied to the transistor 302t and the transistor 303t shown in FIG. This can be done.

[0354] FIG. 23C shows a structure in which a top-gate transistor is used.

[0355] For example, polycrystalline silicon or a single crystal silicon film transferred from a single crystal silicon substrate, etc. The semiconductor layer including the above is used as a transistor 302t and a transistor 303t shown in FIG. can be applied to.

[0356] [Configuration example 3] FIG. 24 is a cross-sectional view of touch panel 505B. The transistor 505B displays the supplied image information on the side where the transistor is provided. The touch sensor is provided on the substrate 701 side of the display unit, and the FPC 509(2) is The difference from the touch panel 505A of the configuration example 2 is that it is provided on the same side as the touch panel C509(1). Here, the different configurations are described in detail, and where similar configurations can be used, The above description is incorporated herein by reference.

[0357] The colored layer 367R is located so as to overlap the light emitting element 350R. The optical element 350R emits light toward the side where the transistor 302t is provided. A part of the light emitted by the light emitting element 350R is transmitted through the colored layer 367R and is reflected by the arrows in the figure. The light is emitted to the outside of the light emitting module 380R in the direction of the arrow.

[0358] The touch panel 505B has a light-shielding layer 367BM in the light-emitting direction. The 7BM is provided so as to surround a colored layer (for example, the colored layer 367R).

[0359] The touch sensor 595 is provided on the substrate 701 side, not on the substrate 711 side (FIG. 24 (A)).

[0360] The adhesive layer 597 is formed by bonding the substrate 590 to the substrate 70 so that the touch sensor 595 overlaps the display unit. 1. The adhesive layer 597 is light-transmitting.

[0361] A configuration in which a bottom gate type transistor is applied to the display portion 501 is shown in FIG. Shown in (A) and (B).

[0362] For example, a semiconductor layer including an oxide semiconductor, amorphous silicon, or the like is shown in FIG. The same can be applied to the transistor 302t and the transistor 303t.

[0363] For example, a semiconductor layer containing polycrystalline silicon or the like is used as the transistor 302 shown in FIG. t and transistor 303t.

[0364] FIG. 24C shows a structure in which a top-gate transistor is used.

[0365] For example, a semiconductor layer including polycrystalline silicon or a transferred single crystal silicon film is formed as shown in FIG. The present invention can be applied to a transistor 302t and a transistor 303t shown in FIG.

[0366] [Touch sensor configuration example] A more specific configuration example of the touch sensor 595 will be described below with reference to the drawings. do.

[0367] FIG. 25A shows a schematic top view of the touch sensor 595. The touch sensor 595 is a On a plate 590, a plurality of electrodes 531, a plurality of electrodes 532, a plurality of wirings 541, a plurality of wirings 54 2. The substrate 590 also has a plurality of wirings 541 and a plurality of wirings 542 and an electric The FPC 550 is provided for connecting to the target.

[0368] FIG. 25(B) shows an enlarged view of the area surrounded by the dashed line in FIG. 25(A). The electrode pattern has a shape in which multiple diamond-shaped electrode patterns are aligned in the horizontal direction of the paper. The diamond-shaped electrode patterns are electrically connected to each other. Similarly, the electrode 532 is A plurality of diamond-shaped electrode patterns are arranged in the vertical direction of the paper, and the diamond-shaped electrodes are arranged in a row. The electrode patterns are electrically connected to each other. Part of these overlap and cross each other. At this crossing part, the electrodes 531 and 532 An insulator is sandwiched between the wires to prevent them from being electrically shorted out.

[0369] As shown in FIG. 25(C), the electrode 532 is connected to a plurality of diamond-shaped electrodes 533. , and may be composed of a bridge electrode 534. The island-shaped electrode 533 is arranged in the vertical direction of the drawing. The electrodes 533 are arranged side by side, and two adjacent electrodes 533 are electrically connected by a bridge electrode 534. With this structure, the electrode 533 and the electrode 531 are formed of the same conductive film. By processing the layers, they can be formed simultaneously. This makes it possible to suppress variations in the resistance and light transmittance of each electrode depending on the location. In this embodiment, the electrode 532 has a bridge electrode 534. 1 may have such a configuration.

[0370] As shown in FIG. 25(D), the diamond-shaped electrodes 531 and 532 shown in FIG. 25(B) are The inside of the electrode pattern may be hollowed out to leave only the outline. In this case, when the width of the electrodes 531 and 532 is thin enough not to be visually recognized by the user, As described later, the electrodes 531 and 532 may be made of a light-shielding material such as a metal or an alloy. In addition, the electrode 531 or the electrode 532 shown in FIG. 25(D) is connected to the bridge electrode 534. The configuration may include the following.

[0371] One electrode 531 is electrically connected to one wiring 541. 2 is electrically connected to one wiring 542.

[0372] Here, the touch sensor 595 is placed on the display surface of the display panel to form a touch panel. In this case, a light-transmitting conductive material is preferably used for the electrodes 531 and 532. In addition, a light-transmitting conductive material is used for the electrodes 531 and 532, and the light from the display panel is When the voltage is taken out through the electrode 531 or the electrode 532, the voltage between the electrode 531 and the electrode 532 is set to 0.05 V. It is preferable to dispose a conductive film containing the same conductive material between the conductive layers as a dummy pattern. In this way, a part of the gap between the electrode 531 and the electrode 532 is filled with a dummy pattern. As a result, the variation in light transmittance can be reduced. This can reduce uneven brightness of the light.

[0373] Examples of the conductive material having a light-transmitting property include indium oxide, indium tin oxide, and indium tin oxide. Conductive oxides such as zinc oxide, zinc oxide, and zinc oxide doped with gallium are used. A film containing graphene can also be used. The film containing graphene is, for example, For example, the graphene oxide film can be reduced. As a method for this, a method of applying heat can be mentioned.

[0374] Alternatively, a metal or alloy that is thin enough to have light transmission properties can be used. For example, gold , silver, platinum, magnesium, nickel, tungsten, chromium, molybdenum, iron, cobalt Metals such as titanium, copper, palladium, or titanium, or alloys containing such metals, can be used. Alternatively, a nitride of the metal or alloy (for example, titanium nitride) may be used. Further, a laminated film in which two or more conductive films containing the above-mentioned materials are laminated may be used.

[0375] In addition, the electrodes 531 and 532 are made thin enough that they are not visible to the user. A conductive film may be used. For example, such a conductive film may be processed into a lattice (mesh) shape. As a result, high conductivity and high visibility of the display device can be obtained. nm or more and 100 μm or less, preferably 50 nm or more and 50 μm or less, more preferably 50 nm or more and 100 μm or less. It is preferable that the width of the pattern is 10 μm or less. A conductive film having a line width is preferable because it is extremely difficult for a user to visually recognize the conductive film.

[0376] As an example, FIG. 26(A) to (D) show a part of the electrode 531 or the electrode 532 (FIG. 25 FIG. 26(A) shows an enlarged schematic diagram of the area surrounded by the dashed line circle in FIG. 26(B). ) shows an example in which a lattice-shaped conductive film 561 is used. In this case, the conductive film 561 By arranging it so as not to overlap with the display element of the display device, light from the display device is blocked. In this case, the orientation of the lattice is set to the same orientation as the arrangement of the display elements, It is also preferable that the period of the grating is an integer multiple of the period of the array of display elements.

[0377] FIG. 26(B) shows a lattice-shaped conductive film processed to form triangular openings. 562. By adopting such a configuration, compared to the case shown in FIG. Therefore, it is possible to achieve a lower resistance overall.

[0378] As shown in FIG. 26C, a conductive film 56 having a pattern shape without periodicity is formed. With this configuration, moire is prevented when the display unit of the display device is overlapped. The moire pattern is a pattern of fine, evenly spaced conductive patterns. When external light passes through or is reflected by a conductive film, it is diffracted or interfered with. This refers to the interference pattern that occurs when

[0379] Alternatively, the electrodes 531 and 532 may be made of conductive nanowires. ) shows an example in which a nanowire 564 is used. By distributing the particles at an appropriate density so that they come into contact with each other, a two-dimensional network is formed. The average diameter of the conductive film is 1.0 mm. is 1 nm or more and 100 nm or less, preferably 5 nm or more and 50 nm or less, more preferably 5 The nanowire 564 may be a nanowire having a diameter of 25 nm or more. Metal nanowires such as Zn nanowires, Cu nanowires, and Al nanowires, or carbon nanowires. For example, Ag nanowires have a light transmittance of 8 9% or more, and a sheet resistance value of 40 to 100 Ω / □ can be achieved.

[0380] In FIG. 25A and the like, the top surface shape of the electrode 531 and the electrode 532 is a plurality of diamond shapes. The electrode 531 and the electrode 532 may have any shape that is connected in the same direction. The shape of the upper surface may be various, such as a strip (rectangular), a strip having a curve, a zigzag shape, etc. In the above example, the electrodes 531 and 532 are arranged so as to be perpendicular to each other. Although shown as being orthogonal, they do not necessarily have to be arranged orthogonally. The polar angle may be less than 90 degrees.

[0381] In FIG. 27(A) to (C), instead of the electrodes 531 and 532, a thin line-shaped upper surface shape is used. 27A shows an example in which an electrode 536 and an electrode 537 having the same structure are used. In this example, linear electrodes 536 and 537 are arranged in a lattice pattern. do.

[0382] In FIG. 27B, the electrode 536 and the electrode 537 have a zigzag top surface. In this case, as shown in FIG. 27(B), By arranging the electrodes 536 and 537 in a relatively offset manner rather than overlapping the central positions, The length of the portion where the electrodes face each other in parallel can be increased, and the mutual capacitance between the electrodes is increased. Alternatively, as shown in FIG. 27(C), the electrode 536 and the electrode If the top surface shape of the pole 537 is a shape in which a part of the straight part of the zigzag shape protrudes, Even if the center positions of the straight line portions are overlapped, the length of the opposing portions can be increased. Therefore, the mutual capacitance between the electrodes can be increased.

[0383] Enlarged views of the area enclosed by the dashed line in Fig. 27(B) are shown in Fig. 28(A), (B), and (C). Enlarged views of the areas enclosed by dashed lines in 7(C) are shown in Figs. 28(D), 28(E), and 28(F), respectively. Also shown in each figure are an electrode 536, an electrode 537, and an intersection 538 where these intersect. As shown in Figs. 28(B) and (E), the electrodes 536 and The straight portions of the electrodes 537 may be meandering so as to have corners, or as shown in FIG. As shown in (C) and (F), the shape may be a meandering shape with continuous curves.

[0384] [Configuration example 4] As shown in FIG. 29, the touch panel 500TP has a display unit 500 and an input unit 600 overlapped therewith. 30 is a cross-sectional view taken along dashed line Z1-Z2 shown in FIG.

[0385] The individual elements constituting the touch panel 500TP will be described below. These components cannot be clearly separated, and one component may serve as another or may include a part of another. In addition, the touch panel 500TP in which the input unit 600 is superimposed on the display unit 500 is also called a touch panel.

[0386] The input section 600 has a plurality of detection units 602 arranged in a matrix. The input section 600 includes a selection signal line GL, a control line RES, a signal line DL, and the like.

[0387] The selection signal line GL and the control line RES are arranged in the row direction (indicated by the arrow R in the figure). The signal line DL is electrically connected to the detection unit 602. ) is electrically connected to a plurality of sensing units 602 arranged in a row.

[0388] The detection unit 602 detects the proximity or contact of an object and supplies a detection signal. Detects capacitance, illuminance, magnetic force, radio waves, pressure, etc., and provides information based on the detected physical quantity. Specifically, a capacitance element, a photoelectric conversion element, a magnetic detection element, a piezoelectric element, a resonator, etc. It can be used in devices.

[0389] The detection unit 602 detects, for example, a change in capacitance between an object in proximity or in contact with the object. do.

[0390] In addition, when an object with a higher dielectric constant than the air, such as a finger, comes close to the conductive film in the air, When the finger is touched, the capacitance between the finger and the conductive film changes. This change in capacitance is detected and the detection information is can be supplied.

[0391] For example, a change in capacitance causes charge sharing between the capacitance element and the capacitor. The voltage across the electrodes changes. This voltage change can be used as a detection signal.

[0392] The detection unit 602 includes a detection circuit. The detection circuit is connected to a selection signal line GL and a control line RES. Or, it is electrically connected to a signal line DL or the like.

[0393] The detection circuit includes a transistor and / or a detection element. For example, A capacitance element electrically connected to the conductive film can be used in the detection circuit. A capacitor and a transistor electrically connected to the capacitor can be used in a detection circuit. Cut.

[0394] The detection circuit includes, for example, an insulating layer 653, a first electrode 651 sandwiching the insulating layer 653, and A capacitor 650 having a first electrode 652 and a second electrode 653 can be used (FIG. 30). The voltage between the electrodes of element 650 is controlled by the proximity of a conductive film electrically connected to one of the electrodes. It varies depending on the

[0395] The sensing unit 602 can be made conductive or non-conductive based on a control signal. For example, the transistor M12 can be used as the switch.

[0396] Additionally, a transistor may be used in the sensing unit 602 to amplify the sensing signal.

[0397] The transistors that can be fabricated in the same process are the transistors that amplify the detection signal. This can be used for the input unit 600 and the switch. can be provided.

[0398] The detection unit 602 also has a plurality of windows 667 arranged in a matrix. The window portions 667 transmit visible light, and a light-shielding layer BM may be disposed between the plurality of window portions 667 .

[0399] The touch panel 500TP has a colored layer at a position overlapping the window portion 667. The colored layer can be called a color filter. For example, blue A colored layer 367B that transmits light of a color, a colored layer 367G that transmits green light, or a colored layer 367H that transmits red light. A colored layer 367R that transmits yellow light can be used. A colored layer that transmits light may be used.

[0400] The display unit 500 has a plurality of pixels 302 arranged in a matrix. The pixel 302 is arranged so as to overlap with the window portion 667 of the input portion 600. The pixels may be arranged with higher resolution than those in the configuration example 602. The details are omitted.

[0401] The touch panel 500TP has a window 667 that transmits visible light and a matrix of The input section 600 has a plurality of detection units 602, and the pixel 302 overlapping the window section 667 is The display unit 500 includes a plurality of windows 667 and a colored layer between the windows 667 and the pixels 302. In addition, each detection unit can reduce interference with other detection units. A switch is provided to enable the

[0402] This provides the detection information detected by each detection unit along with the position information of the detection unit. In addition, the detection information can be provided in association with the position information of the pixels that display the image. In addition, the detection unit that does not supply detection information and the signal line can be set to a non-conductive state. By doing so, it is possible to reduce interference with the detection unit that supplies the detection signal. As a result, a novel touch panel 500TP that is highly convenient and reliable can be provided.

[0403] For example, the input unit 600 of the touch panel 500TP detects detection information and outputs it together with position information. Specifically, the user of the touch panel 500TP can input the input unit 600 Use your finger as a pointer to perform various gestures (tap, drag, swipe, etc.) You can pinch in, etc.

[0404] The input unit 600 detects a finger or the like approaching or touching the input unit 600 and outputs the detected position or It can provide sensing information including trajectories and the like.

[0405] The computing device judges whether the supplied information satisfies a predetermined condition based on a program or the like. and executes the command associated with the given gesture.

[0406] Thus, the user of the input unit 600 provides a predetermined gesture using a finger or the like, The gesture may cause the computing device to execute an instruction associated with the gesture.

[0407] For example, the input unit 600 of the touch panel 500TP first supplies detection information to one signal line. A detection unit X is selected from the plurality of detection units that can be supplied. The signal line of the other detection units except for the detection unit X is put into a non-conductive state. This makes it possible to reduce interference with the detection unit X caused by other detection units.

[0408] Specifically, the interference caused by the detection elements of other detection units on the detection elements of detection unit X. This can reduce interference.

[0409] For example, a capacitance element and a conductive film to which one electrode of the capacitance element is electrically connected are used as a detection element. In the case of using the detection unit X, the potential of the conductive film of the other detection unit is The interference with the electric potential of the conductive film can be reduced.

[0410] This allows the Touch Panel 500TP to be used with a sensing unit regardless of its size. For example, it can be used in a handheld device. There are various sizes of tags, from ones that can be used for writing to ones that can be used for electronic whiteboards. We can provide Touch Panel 500TP.

[0411] In addition, the touch panel 500TP can be folded and unfolded. And in the folded and unfolded states, the other sensing units can Even if the interference with the detection unit X is different, it depends on the state of the touch panel 500TP. The detection unit can be driven to supply detection information without any need for a power supply.

[0412] Moreover, the display unit 500 of the touch panel 500TP can be supplied with display information. For example, the computing device may provide the display information.

[0413] In addition to the above configuration, the touch panel 500TP can also have the following configuration.

[0414] The touch panel 500TP may include a driver circuit 603g or a driver circuit 603d. It may also be electrically connected to the FPC1.

[0415] The driving circuit 603g can supply a selection signal at a predetermined timing, for example. In practice, the selection signal is supplied to each selection signal line GL in a predetermined order. For example, a shift register, a flip-flop, A circuit, a combinational circuit, etc. can be used.

[0416] The driving circuit 603d provides detection information based on the detection signal provided by the detection unit. In addition, various circuits can be used for the driving circuit 603d. For example, the detection unit By electrically connecting the detection circuit arranged in the A circuit capable of forming a mirror circuit can be used for the driving circuit 603d. In addition, the sensor may have an analog-to-digital conversion circuit that converts the detection signal into a digital signal.

[0417] The FPC 1 supplies timing signals, power supply potential, etc., and is supplied with detection signals.

[0418] The touch panel 500TP includes a driving circuit 503g, a driving circuit 503s, wiring 311, or It may have a terminal 319 and may be electrically connected to the FPC 2.

[0419] In addition, it has a protective layer 670 that protects the touch panel 500TP by preventing scratches. For example, a ceramic coating layer or a hard coating layer may be used for the protective layer 670. Specifically, a layer containing aluminum oxide or a UV-curable resin can be used. .

[0420] In order to realize a semi-transmissive or reflective LCD, the pixels A part or the whole of the electrode may function as a reflective electrode. For example, A part or the whole of the pixel electrode may be made of aluminum, silver, or the like.

[0421] It is also possible to provide a memory circuit such as an SRAM under the reflective electrode. This also reduces power consumption. A variety of pixel circuits can be selected for use.

[0422] The touch panel described in this embodiment is a display that constitutes the display device 50 of the first embodiment. In this case, the touch panel 390 or the touch panel 100 may be used instead. Like the 505B, multiple FPCs connected to the touch panel are taken out from one direction. In place of the display panel 100, a touch panel having a structure as described above can be preferably used. When a touch panel is used, the display device 50 can also be called an input / output device.

[0423] In addition, the adhesive layer 107 that bonds the multiple touch panels to the substrate 106 is The height of the upper surface of the touch sensor 595 (or the input unit 600) of the panel is made to be the same, It is preferable that the upper surface is parallel to the substrate 106. That is, the surface of the substrate 106) and the touch sensor 595 (or input By making the distance between the input / output device and the input section 600 equal, the location dependency of the detection sensitivity of the input / output device (in-plane mu This can reduce the size of the filter (also called the filter).

[0424] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0425] (Embodiment 6) In this embodiment, an electronic device and a lighting device according to one embodiment of the present invention will be described with reference to drawings. Reveal.

[0426] Examples of electronic devices include television sets (also known as televisions or television receivers). (hereinafter referred to as "computer monitors"), digital cameras, digital video cameras, digital photo frames, mobile phones (also called mobile phones or mobile phone devices), portable game machines, Examples of the device include portable information terminals, audio playback devices, and large game machines such as pachinko machines.

[0427] In addition, the electronic device or lighting device of one embodiment of the present invention has flexibility and can be used in a house or a building. It can also be installed along the curved surfaces of walls or exterior walls, or the interior or exterior of a car. be.

[0428] Further, the electronic device of one embodiment of the present invention may include a secondary battery and may perform non-contact power transmission. It is preferable that the secondary battery can be charged using the same.

[0429] As the secondary battery, for example, a lithium polymer battery (lithium ion battery) using a gel electrolyte is used. Lithium-ion secondary batteries such as lithium-ion polymer batteries, lithium-ion batteries, nickel-metal hydride batteries battery, nickel-cadmium battery, organic radical battery, lead acid battery, secondary air battery, nickel-zinc battery, silver-zinc battery Examples include lead batteries.

[0430] The electronic device according to one embodiment of the present invention may include an antenna. By using the battery, it is possible to display images, information, etc. on the display unit. , the antenna may be used for contactless power transfer.

[0431] In a display device according to one embodiment of the present invention, the area of ​​a display region can be increased by increasing the number of display panels. Therefore, the display device according to one embodiment of the present invention can be used as a digital display device. The display device according to the present invention can be suitably used for display signage, PID, and the like. The device allows the external shape of the display device to be varied by changing the arrangement of the display panel. can.

[0432] FIG. 31A illustrates an example in which a display device 50 according to one embodiment of the present invention is applied to a pillar 55 or a wall 56. As the display panel 100 used in the display device 50, a flexible display panel By using this, it is possible to install the display device 50 along a curved surface.

[0433] Here, in particular, when the display device according to one embodiment of the present invention is used for digital signage or PID, By applying a touch panel to the display panel, it is possible to simply display images and videos in the display area. This is preferable because it allows the observer to intuitively operate the device, rather than relying on the operator. When used for providing information, etc., the user experience should be improved through intuitive operation. When installing the unit on the wall of a building or public facility, The display panel does not need to be a touch panel.

[0434] 31B to 31E show examples of electronic devices having a curved display portion 7000. FIG. The display unit 7000 has a curved display surface, and displays information along the curved display surface. The display unit 7000 may be flexible.

[0435] The display portion 7000 included in each of the electronic devices illustrated in FIGS. 31B to 31E is one embodiment of the present invention. It is made using a display device.

[0436] An example of a mobile phone is shown in FIG. 31B. A mobile phone 7100 includes a housing 7101, a display unit 7000, operation button 7103, external connection port 7104, speaker 7105, microphone 7106 etc.

[0437] A mobile phone 7100 shown in FIG. 31B includes a touch sensor in the display portion 7000. In the mobile phone 7100 shown in FIG. All operations such as making a phone call or entering text can be done with a finger or a stylus. This can be done by touching part 7000.

[0438] In addition, the operation button 7103 can be used to turn the power on and off, and to display the display unit 7000. For example, from the email composition screen, you can change the type of image displayed on the You can then switch to the main menu screen.

[0439] FIG. 31C shows an example of a television device. The television device 7200 has a housing 7 A display unit 7000 is built into the housing 201. This shows the configuration that supported 201.

[0440] The television device 7200 shown in FIG. 31C is operated by an operation switch provided in the housing 7201. This can be done by a separate remote control 7211 or the display unit 700. The display unit 7000 may be provided with a touch sensor, and the operation may be performed by touching the display unit 7000 with a finger or the like. The remote control unit 7211 displays information output from the remote control unit 7111. The remote control 7211 may have an operation key or a touch panel. The channel and volume can be controlled by the control panel, and the image displayed on the display unit 7000 can be You can manipulate the image.

[0441] The television device 7200 includes a receiver, a modem, and the like. It is also possible to receive general television broadcasts by wired or wireless connection via a modem. By connecting to a communication network, one-way (sender to receiver) or two-way It is also possible to communicate information (between a sender and a receiver, or between receivers).

[0442] An example of a portable information terminal is shown in FIG. and a display unit 7000. In addition, operation buttons, an external connection port, a speaker, a microphone, The display unit 7000 may include an antenna, a battery, etc. The mobile information terminal 7300 is operated by touching the display unit 7000 with a finger or a stylus. This can be done.

[0443] FIG. 31(D) is a perspective view of a portable information terminal 7300, and FIG. 31(E) is a perspective view of a portable information terminal FIG. 7300 is a top view.

[0444] The portable information terminal exemplified in this embodiment is, for example, a telephone, a notebook, an information viewing device, etc. Specifically, the device can be used as a smartphone. The portable information terminal exemplified in this embodiment may be, for example, a mobile phone, an electronic mail, or the like. It can be used for a variety of purposes, including browsing and writing documents, playing music, communicating on the Internet, and playing computer games. Various applications can be executed.

[0445] The mobile information terminal 7300 can display text and image information on multiple sides. For example, as shown in FIG. 31(D), three operation buttons 7302 are displayed on one side, and the buttons are arranged in a rectangular shape. In FIG. 31(D) and (E), the mobile information 7303 can be displayed on another surface. Here is an example where the information is displayed on the top side of the mobile information terminal. Or, the information is displayed on the side of the mobile information terminal. Also, information may be displayed on three or more faces of a mobile information terminal.

[0446] An example of such information is notifications from social networking services (SNS). , display notifying you of incoming e-mails or telephone calls, subject of e-mails or sender name , date and time, battery level, antenna reception strength, etc. Instead of information, an operation button, an icon, or the like may be displayed at the position where the button is pressed.

[0447] For example, the user of the portable information terminal 7300 may carry the portable information terminal 7300 in a breast pocket of a garment. When the item is stored, the display (information 7303 in this example) can be confirmed.

[0448] Specifically, the telephone number or name of the caller of the incoming call is recorded on the mobile information terminal 7300. The display is placed in a position that can be observed from above. The user takes the mobile information terminal 7300 out of his / her pocket. You can check the display and decide whether or not to answer the call without having to take out your phone.

[0449] FIG. 31(F) shows an example of an illumination device having a curved light-emitting portion.

[0450] The light-emitting portion of the lighting device shown in FIG. 31F is manufactured using the display device of one embodiment of the present invention. It is manufactured.

[0451] The lighting device 7400 shown in FIG. 31(F) includes a light-emitting unit 7402 having a wavy light-emitting surface. This makes it a highly designed lighting device.

[0452] Furthermore, each light-emitting unit included in the lighting device 7400 may be flexible. It is fixed with plastic parts and movable frames, and the light-emitting surface of the light-emitting part can be adjusted automatically according to the purpose. The flexible member 11 may be configured to be freely bendable.

[0453] The lighting device 7400 includes a base 7401 having an operation switch 7403 and a It has a light emitting portion that is supported.

[0454] In this embodiment, the illumination device in which the light-emitting unit is supported by the base is illustrated. The housing may be fixed to the ceiling or hung from the ceiling. The light surface can be curved, so a specific area can be brightened by curving the light-emitting surface in a concave shape. The light can be curved convexly to illuminate an entire room.

[0455] 32(A1), (A2), (B) to (I) show a display device having a flexible display portion 7001. 1 shows an example of a portable information terminal.

[0456] The display portion 7001 is manufactured using the display device of one embodiment of the present invention. A display device that can be bent by 0.01 mm or more and 150 mm or less can be applied. The display unit 7001 may be equipped with a touch sensor, and when the display unit 7001 is touched with a finger or the like, Able to operate a mobile information terminal.

[0457] FIG. 32(A1) is a perspective view showing an example of a portable information terminal, and FIG. 32(B) is a perspective view showing an example of a portable information terminal. 7 is a side view showing an example of a mobile information terminal. 01, a drawer member 7502, an operation button 7503, etc.

[0458] The portable information terminal 7500 has a flexible display unit wound in a roll shape in a housing 7501. It has 7001.

[0459] In addition, the portable information terminal 7500 can receive video signals using a built-in control unit. The image can be displayed on the display unit 7001. The battery is built in. The housing 7501 is also equipped with a terminal for connecting a connector, Signals and power may be supplied directly from the outside via wires.

[0460] In addition, the operation button 7503 can be used to turn the power on and off and to switch the displayed image. In addition, in Fig. 32 (A1), (A2), and (B), a mobile information terminal In the example shown, the operation buttons 7503 are arranged on the side of the mobile information terminal 7500. It may be placed on the same surface (front surface) as the display surface of the terminal 7500, or on the back surface.

[0461] FIG. 32B shows a mobile phone with the display unit 7001 pulled out by a pull-out member 7502. 7 shows a portable information terminal 7500. In this state, an image can be displayed on the display unit 7001. 32(A1) in which a part of the display unit 7001 is rolled up, and the state of the display unit 700 32(B) in which the portable information terminal 751 is pulled out by the pull-out member 7502. For example, in the state shown in FIG. 32(A1), the display By hiding the rolled-up portion of the display unit 7001, the mobile information terminal 7500 Power consumption can be reduced.

[0462] When the display unit 7001 is pulled out, the display surface of the display unit 7001 is made flat. To fix the display unit 7001 in place, a reinforcing frame may be provided on the side of the display unit 7001 .

[0463] In addition to this configuration, a speaker is provided on the housing, and the sound signal received together with the video signal is output. The configuration may be such that sound is outputted.

[0464] 32(C) to (E) show an example of a foldable portable information terminal. ) is in the unfolded state, and in Fig. 32(D) is in either the unfolded or folded state. In FIG. 32(E), the portable information terminal 76 is in a folded state. The portable information terminal 7600 is highly portable when folded and can be folded up to 100 mm in length when unfolded. In this mode, the seamless, large display area provides excellent visibility.

[0465] The display unit 7001 is supported by three housings 7601 connected by hinges 7602. By bending the two housings 7601 via the hinge 7602, The terminal 7600 can be reversibly transformed from an unfolded state to a folded state.

[0466] An example of a foldable portable information terminal is shown in Figures 32(F) and 32(G). In FIG. 32(G), the display unit 7001 is folded outward. The portable information terminal 7650 is folded so that the 7001 faces inward. The terminal 7650 has a display portion 7001 and a non-display portion 7651. When not in use, the display unit 7001 can be folded inward. This can reduce dirt and scratches.

[0467] FIG. 32(H) shows an example of a flexible portable information terminal. The portable information terminal 7700 is The device has a housing 7701 and a display unit 7001. , 7703b, speakers 7704a, 7704b as audio output means, and an external connection port 7 The portable information terminal 7700 may have a display 705, a microphone 7706, and the like. The battery 7709 may be mounted on the display unit 7 It may be placed overlapping with 001.

[0468] The housing 7701, the display portion 7001, and the battery 7709 are flexible. The portable information terminal 7700 can be bent into a desired shape or twisted. For example, the portable information terminal 7700 has a display unit 7001 on the inside or It can be folded outward and used. In this manner, the housing 7701 and the display unit 700 can be used in a rolled-up state. Since the portable information terminal 7700 can freely deform, even if it is dropped or has the advantage that it is less likely to be damaged even if an unintended external force is applied.

[0469] In addition, since the portable information terminal 7700 is lightweight, the upper part of the housing 7701 can be held with a clip or the like. Or, the housing 7701 can be fixed to the wall with a magnet or the like. , and can be conveniently used in a variety of situations.

[0470] FIG. 32(I) shows an example of a wristwatch-type portable information terminal. The device includes a keyboard 7801, a display unit 7001, an input / output terminal 7802, and an operation button 7803. The handheld terminal 7801 functions as a housing. The battery 7805 may be mounted on the display unit 70. It may be placed overlapping with band 01 or band 7801.

[0471] The band 7801, the display portion 7001, and the battery 7805 are flexible. Therefore, it is easy to bend the portable information terminal 7800 into a desired shape.

[0472] The operation button 7803 is used to set the time, turn the power on and off, and turn wireless communication on and off. It supports various functions such as auto-start, silent mode and power saving mode. For example, the operating system built into the portable information terminal 7800 can be Depending on the system, the functions of the operation buttons 7803 can be freely set.

[0473] In addition, by touching an icon 7804 displayed on the display unit 7001 with a finger or the like, the application You can start the application.

[0474] In addition, the portable information terminal 7800 is capable of performing short-distance wireless communication according to a communication standard. For example, by communicating with a wireless headset, a hands-free You can also make calls.

[0475] The portable information terminal 7800 may also have an input / output terminal 7802. If the device has a 802 connector, data can be exchanged directly with other information terminals via the connector. Charging can also be performed via the input / output terminal 7802. The charging operation of the portable information terminal shown in the example is performed by non-contact power transmission without using input / output terminals. This is also possible.

[0476] FIG. 33(A) shows the exterior of the automobile 9700. FIG. 33(B) shows the driver's seat of the automobile 9700. The automobile 9700 includes a body 9701, wheels 9702, a dashboard 9703, a rack The display device of one embodiment of the present invention is provided on a display unit of an automobile 9700. For example, the display areas 9710 to 9710 shown in FIG. A display device according to one embodiment of the present invention can be provided in the display device 15.

[0477] The display portion 9710 and the display portion 9711 are display devices provided on a windshield of an automobile. In the display device of one embodiment of the present invention, an electrode of the display device is formed using a light-transmitting conductive material. By using a material that allows the display to be seen through to the other side, a so-called see-through display device If the display device is in a see-through state, it is possible to view the vehicle 9700 even while driving. Therefore, the display device according to one embodiment of the present invention can be mounted on the front of the automobile 9700. The display device can be installed on the front glass. When providing a transistor, an organic transistor using an organic semiconductor material or an oxide A light-transmitting transistor, such as a transistor using a semiconductor, is preferably used.

[0478] The display unit 9712 is a display device provided on a pillar part. By displaying the image from the imaging means on the display unit 9712, the view blocked by the pillars can be cleared. The display unit 9713 is a display device provided in the dashboard. For example, an image captured by an imaging means provided on the vehicle body is displayed on the display unit 9713. This can complement the view obstructed by the dashboard. By projecting images from an imaging device installed in the vehicle, blind spots are filled and safety is improved. In addition, by projecting an image that complements the invisible parts, it is possible to make the image look more natural. This allows for easy safety checks.

[0479] FIG. 34 shows the interior of a car with bench seats for the driver and passenger. The display unit 9721 is a display device provided in the door section. By displaying an image from the imaging means on the display unit 9721, the view blocked by the door is complemented. The display unit 9722 is a display device provided on the handle. The display unit 9723 is a display device provided in the center of the seat surface of the bench seat. The device is installed on the seat or backrest, and the heat generated by the display device is absorbed by the heat source. It can also be used as a seat heater.

[0480] The display unit 9714, the display unit 9715, or the display unit 9722 displays navigation information, speech such as the odometer, tachometer, mileage, fuel level, gear status, and air conditioning settings. It is also possible to display various other information. The above information can be displayed on the display unit. The display units 9710 to 9713, 9721, and 9723 can also display the In addition, the display units 9710 to 9715 and the display units 9721 to 9723 are illuminated. The display units 9710 to 9715 can also be used as a display device. The portion 9721 to the display portion 9723 can also be used as a heating device.

[0481] Note that the above-described electronic devices and lighting devices each include a display device according to one embodiment of the present invention. It goes without saying that the present invention is not particularly limited to the above.

[0482] The configurations and methods described in this embodiment may be used in conjunction with the configurations and methods described in other embodiments. They can be used in any suitable combination. [Explanation of symbols]

[0483] 10 Display System 11 areas 11A area 11B area 11C area 11D area 15 Display images 15A Display image 15B Display image 20 Display device 20a Display panel 20b Display panel 21a Display area 21b Display area 22b Transparent part 23a Auxiliary display area 23b Auxiliary display area 25 Display device 25a Display panel 25b Display panel 31 Detection methods 31a Detection means 31b Detection means 32 Correction means 35 Display device 36 Display Panel 37 Display area 38 Transparent part 39 Hidden area 40 Display device 41 Display area 41a Display area 41A Display area 41B Display area 41C Display area 42 Transparent part 43 Auxiliary display area 43b Auxiliary display area 44 areas 45 Display Panel 45a Display panel 45b Display panel 45e Display panel 46 Display images 48 Display device 49 Display device 50 Display device 51 Display area 55 Pillars 56 Wall 100 Display Panel 100a Display panel 100b Display panel 100c Display Panel 100d Display Panel 101 Display area 101a Display area 101b Display area 101c display area 101d Display area 103 Display area 104 FPC 105 Protective materials 106 Substrate 107 Adhesive layer 110 Transparent part 110b Transparent part 110c transparent part 110d transparent part 112 FPC 112a FPC 112b FPC 120 areas 120a area 120b area 120c area 123 FPC 131 Resin layer 132 Protection Board 133 Resin layer 134 Protection Board 141 pixels 141a pixels 141b pixels 142a Wiring 142b Wiring 143a Circuit 143b circuit 145 Wiring 151 Substrate 152 Substrate 153 Adhesive layer 170 areas 200 Display device 201 Shaft 202 Rotation Mechanism 203 Bearing section 211 Code 212 Bar 213 Code 221 Wall 222 Cover 230 Table 231 Case 232 Cover 240 Display equipment 241 Case 242 Bar 243 Frames 244 Legs 301 Display section 302 pixels 302B subpixel 302G subpixel 302R subpixel 302t Transistor 303c capacity 303g(1) Scanning line driver circuit 303g(2) Imaging pixel driving circuit 303s(1) Image signal line driver circuit 303s(2) Imaging signal line driver circuit 303t Transistor Gate 304 308 imaging pixels 308p Photoelectric conversion element 308t transistor 309 FPC 311 Wiring 319 Terminal 321 Insulating Layer 328 Bulkhead 329 Spacer 350R Light emitting element 351R lower electrode 352 Upper electrode 353 EL layer 353a EL layer 353b EL layer 354 Middle Class 360 adhesive layer 367B Colored layer 367BM light shielding layer 367G colored layer 367p anti-reflection layer 367R colored layer 380B Light Emitting Module 380G Light Emitting Module 380R Light Emitting Module 390 Touch Panel 500 Display 500TP Touch Panel 501 Display section 503g drive circuit 503s driver circuit 505A Touch Panel 505B Touch Panel 509 FPC 531 Electrode 532 Electrode 533 Electrode 534 Bridge Electrode 536 Electrode 537 Electrode 538 Intersection 541 Wiring 542 Wiring 550 FPC 561 Conductive Film 562 Conductive Film 563 Conductive Film 564 Nanowires 590 Substrate 591 Electrode 592 Electrode 593 Insulating Layer 594 Wiring 595 Touch Sensor 597 Adhesive layer 598 Wiring 599 Connection Layer 600 Input section 602 Detection Unit 603d Drive circuit 603g Drive circuit 650 Capacitive element 651 Electrode 652 Electrode 653 Insulation Layer 667 Window 670 protective layer 701 Substrate 703 Adhesive layer 705 Insulation Layer 711 Substrate 713 Adhesive layer 715 Insulating layer 723 Adhesive layer 804 Display section 806 Operation circuit section 808 FPC 810 Transparent part 815 Insulating layer 816 Insulating layer 817 Insulating layer 817a Insulating layer 817b Insulating layer 820 Transistor 821 Insulating layer 822 Adhesive layer 825 Connector 830 Light emitting element 831 Lower electrode 833 EL layer 835 Upper electrode 845 Colored layer 847 Light blocking layer 857 Conductive layer 7000 Display 7001 Display section 7100 Mobile Phone 7101 Case 7103 Operation button 7104 External connection port 7105 Speaker 7106 Microphone 7111 Remote control device 7200 Television Equipment 7201 Case 7203 Stand 7211 Remote control device 7300 Mobile Information Terminal 7301 Case 7302 Operation button 7303 Information 7400 Lighting Equipment 7401 Daibu 7402 Light emitting part 7403 Operation switch 7500 Mobile Information Terminal 7501 Case 7502 Materials 7503 Operation button 7600 Mobile Information Terminal 7601 Case 7602 Hinge 7650 Mobile Information Terminal 7651 Hidden part 7700 Portable Information Terminal 7701 Case 7703a Button 7703b Button 7704a Speaker 7704b Speaker 7705 External connection port 7706 Mike 7709 Battery 7800 Mobile Information Terminal 7801 Band 7802 Input / output terminal 7803 Operation button 7804 Icons 7805 Battery 9700 Automobiles 9701 Body 9702 wheels 9703 Dashboard 9704 Light 9710 Display section 9711 Display section 9712 Display section 9713 Display section 9714 Display section 9715 Display section 9721 Display section 9722 Display section 9723 Display section

Claims

[Claim 1] A display device comprising: a first display panel; a second display panel; a detection unit; and a correction unit; the first display panel has a first display area; the second display panel has a second display area; a first area in which the first display area and the second display area overlap each other; the detection means has a function of detecting a size of the first region, A display system, wherein the correction means has a function of correcting the display of the first display area based on a change in size of the first area.

Images