Indication device

Abstract

To provide a display device that is suitable for increasing in size, a display device in which display unevenness is suppressed, or a display device that can display an image along a curved surface.SOLUTION: A display device includes a first display panel and a second display panel each including a pair of substrates. The first display panel and the second display panel each include a first region which can transmit visible light, a second region which can block visible light, and a third region which can perform display. The third region of the first display panel and the first region of the second display panel overlap each other. The third region of the first display panel and the second region of the second display panel do not overlap each other.SELECTED DRAWING: Figure 2

Description

Technical Field

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

[0002] Note that one aspect of the present invention is not limited to the above technical field. The technical field of one aspect of the invention disclosed in this specification or the like relates to an article, a method, or a manufacturing method. Or, one aspect of the present invention relates to a process, a machine, a manufacture, or a composition (composition of matter). Therefore, more specifically, examples of the technical field of one aspect of the present invention disclosed in this specification include semiconductor devices, display devices, light-emitting devices, lighting devices, power storage devices, memory devices, their driving methods, or their manufacturing methods. [[ID=1�]] [[ID=一十九]]

Background Art

[0003] In recent years, there has been a demand for larger display devices. For example, household television devices (also referred to as TVs or television receivers), digital signage, and PIDs (Public Information Displays) can be cited. In addition, digital signage and PIDs can increase the amount of information that can be provided as they become larger, and when used for advertisements or the like, they are more likely to catch people's eyes as they become larger, and it is expected to enhance the advertising effect. <omitted>0000033

[0004] Also, in the case of mobile device applications, there is a demand for larger display devices. By increasing the display area of the display device, it has been studied to increase the amount of information to be displayed and improve the一览性 (this word seems incorrect, perhaps "legibility" is intended) of the display. ​​​​​​​​​​​​

[0005] Typical examples of display devices include organic EL (Electroluminescence). ) Elements and light-emitting diodes (LEDs) etc. Electronic paper displays using light-emitting devices equipped with optical elements, liquid crystal displays, electrophoretic methods, etc. These are some examples.

[0006] For example, the basic structure of an organic EL element is a layer containing a light-emitting organic compound between a pair of electrodes. It is a device that holds a [component] in place. By applying a voltage to this element, light is emitted from a light-emitting organic compound. Light can be emitted. A display device to which such an organic EL element is applied is a liquid crystal display device. Because it does not require a backlight, which was necessary for placement and other applications, it is thin, lightweight, has high contrast, and low power consumption. This enables the realization of power-efficient display devices. For example, one example of a display device using organic EL elements is patented. This is disclosed in Reference 1.

[0007] Furthermore, Patent Document 2 describes a film substrate on which a switching element such as a transistor and A flexible active-matrix light-emitting device equipped with an electroluminescent element is disclosed. . [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2002-324673 [Patent Document 2] Japanese Patent Publication No. 2003-174153 [Overview of the project] [Problems that the invention aims to solve]

[0009] One aspect of the present invention aims to provide a display device suitable for enlargement. Or One aspect of the present invention aims to provide a display device with reduced display unevenness. Or, one aspect of the present invention aims to provide a display device capable of displaying along a curved surface as one of the problems.

[0010] Or, one aspect of the present invention aims to provide an electronic device with excellent listability. Or, one aspect of the present invention aims to provide an electronic device with excellent portability. as one of the problems.

[0011] Or, one aspect of the present invention aims to provide a novel display device. Or, one aspect of the present invention aims to provide a novel electronic device. as one of the problems.

[0012] Note that the description of these problems does not prevent the existence of other problems. One aspect of the present invention is not required to solve all of these problems. Also, problems other than the above will become apparent from the description in the specification and the like, and it is possible to extract problems other than the above from the description in the specification and the like.

Means for Solving the Problems

[0013] One aspect of the present invention is a display device having a first display panel and a second display panel, where each of the first display panel and the second display panel has a pair of substrates, and each of the first display panel and the second display panel has a first region, a second region, and a third region. The first region has a region capable of transmitting visible light, the second region has a region capable of blocking visible light, the third region has a region capable of performing display, and the third region of the first display panel and the first region of the second display panel are mutually It has an area that overlaps with the third area of ​​the first display panel and the second The second area of ​​the display panel has areas that are arranged so as not to overlap with each other.

[0014] Furthermore, in the above, the first display panel and the second display panel are each a third In the region, each of the first display panel and the second display panel has a light-emitting element. In the second region, there is wiring provided along a part of the outer perimeter of the third region, and the first Each of the display panel and the second display panel is located in the first area, outside the third area. It has a sealing material provided along the other part of the circumference, and the first region is 1 mm to 100 mm It is preferable to have a region with a lower width.

[0015] Another aspect of the present invention relates to a first display panel, a second display panel and a third display A display device having a panel, comprising a first display panel, a second display panel and a third panel Each of the display panels comprises a pair of substrates, a first display panel, a second display panel, and Each of the third display panels has a first area, a second area, and a third area. The first region has an area that can transmit visible light, and the second region blocks visible light. The third region has an area where a display can be made, and the first region has an area where a display can be made. Each of the display panels, the second display panel and the third display panel, is located in the third area. It has a light-emitting element and consists of a first display panel, a second display panel and a third display panel. Each has wiring in the second region that is provided along a portion of the outer perimeter of the third region. The first display panel, the second display panel, and the third display panel are each the first In the region, there is a sealing material provided along another part of the outer perimeter of the third region, and the first region The area has a width of 1 mm or more and 100 mm or less, and is the third area of ​​the first display panel. The first area of ​​the second display panel has an area that overlaps with it. The third area of ​​the first display panel and the second area of ​​the second display panel do not overlap with each other. It has an area that is provided so as not to, and the third area of ​​the first display panel and the third display panel The first region of the panel has regions that overlap each other, and the first display panel The third area of ​​the unit and the second area of ​​the third display panel are arranged so as not to overlap with each other. It has a region that is divided into a third region of the second display panel and a second region of the third display panel. These have areas that are set up so as not to overlap with each other.

[0016] Furthermore, it is preferable that each of the pair of substrates described above is flexible.

[0017] Furthermore, the first display panel has an FPC, and the FPC and the second of the first display panel A region has overlapping regions, and the FPC and the third region of the second display panel are mutually exclusive. Having an overlapping area, the FPC is provided on the side opposite to the display surface side of the second display panel. It is preferable that they be present.

[0018] Furthermore, it has a layer, the layer has a resin material, and the layer and the third area of ​​the first display panel This means that the layers and the third area of ​​the second display panel have overlapping regions. The layer has a region, and the layer has a portion with a first refractive index, and the substrate on the display side of the pair of substrates It has a portion with a second refractive index, and the difference between the first refractive index and the second refractive index is 10% or less. It is preferable that this be the case.

[0019] Another aspect of the present invention is that, in addition to any of the above-mentioned display devices, a touch sensor is also provided. This is a display module.

[0020] Another aspect of the present invention is a display module having any of the above-mentioned display devices. The device comprises a first wireless module and a second wireless module, and the first wireless module It has the function of being able to extract a first signal from a received wireless signal, and the first signal The second wireless module has the function of being able to supply to the display panel, and the second wireless module receives It has a function that can extract a second signal from the wireless signal, and the second signal is displayed on a second display panel. It has the function of being able to supply to the ru

[0021] Another aspect of the present invention relates to any of the above-mentioned display devices, or any of the display modules. A building having a rule, having columns or walls, and a display device or display module It is installed in a column or wall.

[0022] Another aspect of the present invention is a first display panel, a second display panel, and a third display An electronic device having a panel, a first support, and a second support, wherein the second display panel The flannel is flexible and comprises a first display panel, a second display panel, and a third display panel. Each has a first region, a second region, and a third region, and the first region is visible. The first region has the function of transmitting light, the second region has the function of blocking visible light, and the third region has the function of blocking visible light. It has a display function, and the third area of ​​the first display panel and the first area of ​​the second display panel The area has a first part that overlaps with the second display panel, and the third area of ​​the second display The first region of the panel has a second portion that overlaps with it, and the first display panel is the first Having an area supported by a support, the third display panel has an area supported by a second support. The first support and the second support comprise a first display panel, a second display panel, and a third support. The display panels are in an unfolded state where they are positioned on approximately the same plane, and the first display panel and the third display panel It can be transformed into a folded state in which the parts have overlapping areas, In this state, the third area of ​​the second display panel has a curved area, and the first part and The second portion is characterized by having a region that does not bend.

[0023] Furthermore, in the above, the first display panel has a first FPC, and the first FPC and the first The second area of ​​the display panel has overlapping areas with the first FPC and the second display The third area of ​​the panel has overlapping areas, and the first FPC is the second display panel. It is preferable that it be located on the opposite side from the display surface.

[0024] Furthermore, in the above, the second display panel has a second FPC, and the second FPC and the second The second area of ​​the display panel has overlapping areas, and the second FPC and the third display The third area of ​​the panel has overlapping areas, and the second FPC is the third display panel. It is preferable that it be located on the opposite side from the display surface.

[0025] Furthermore, in the above, the first display panel, the second display panel, and the third display panel are, It is preferable that each has a touch sensor. In this case, the touch sensor is a transistor It is preferable that the transistor has a channel and capacitance. In this case, the transistor has a channel shape It is preferable that the resulting semiconductor includes an oxide semiconductor. [Effects of the Invention]

[0026] According to one aspect of the present invention, a display device suitable for scaling up can be provided. Or, according to one aspect of the present invention One embodiment can provide a display device with suppressed display unevenness. Alternatively, one embodiment of the present invention can provide a curved surface A display device capable of displaying information according to the format can be provided. Alternatively, an electronic device with excellent readability can be provided. We can provide that. Or, we can provide highly portable electronic devices.

[0027] Alternatively, we can provide novel display devices (display panels) or electronic devices. The description of the effect does not preclude the existence of other effects. Furthermore, one aspect of the present invention is not necessarily However, it is not necessary to have all of these effects. Other effects are described in the specification and figures. This will become clear from the descriptions of the surfaces, claims, etc., and will be evident from the specifications, drawings, claims, etc. From the description, it is possible to extract effects other than those listed above. [Brief explanation of the drawing]

[0028] [Figure 1] A diagram illustrating a display device according to an embodiment. [Figure 2] A diagram illustrating a display device according to an embodiment. [Figure 3] A diagram illustrating a display device according to an embodiment. [Figure 4] A diagram illustrating a display device according to an embodiment. [Figure 5] A diagram illustrating a display device according to an embodiment. [Figure 6] A diagram illustrating a display panel according to an embodiment. [Figure 7] A diagram illustrating a display panel according to an embodiment. [Figure 8] A diagram illustrating the positional relationship of the display panel according to the embodiment. [Figure 9] A diagram illustrating an application example of the display device according to the embodiment. [Figure 10] A diagram illustrating an example of the configuration of an electronic device equipped with a display device according to an embodiment. [Figure 11] A diagram illustrating an example of the configuration of an electronic device equipped with a display device according to an embodiment. [Figure 12] A diagram illustrating an example of the configuration of an electronic device equipped with a display device according to an embodiment. [Figure 13] A diagram illustrating an example of the configuration of an electronic device equipped with a display device according to an embodiment. [Figure 14] A diagram illustrating a touch panel according to an embodiment. [Figure 15] A diagram illustrating a touch panel according to an embodiment. [Figure 16] A diagram illustrating a touch panel according to an embodiment. [Figure 17] A projection diagram illustrating the configuration of an input / output device according to an embodiment. [Figure 18] A cross-sectional view illustrating the configuration of an input / output device according to an embodiment. [Figure 19] A diagram illustrating the configuration and driving method of a detection circuit and converter according to an embodiment. [Figure 20] A diagram illustrating an example of electronic equipment and lighting devices. [Figure 21] A diagram illustrating an example of an electronic device. [Modes for carrying out the invention]

[0029] Embodiments will be described in detail with reference to the drawings. However, the present invention is not limited to the following description. Without departing from the spirit and scope of the present invention, its form and details may be modified in various ways. Those skilled in the art will readily understand what is possible. Therefore, the present invention is as shown in the following embodiments. It should not be interpreted as being limited to the contents described herein.

[0030] In the configuration of the invention described below, the same part or part having a similar function is The same reference numerals are used consistently across different drawings, and explanations of their repetition are omitted. When referring to the function of [this], the hatch pattern is the same, and sometimes no specific symbol is assigned.

[0031] In each figure described herein, the size, layer thickness, or area of ​​each component is as follows: It may be exaggerated for clarity. Therefore, it is not necessarily limited to that scale. stomach.

[0032] In this specification, ordinal numbers such as "the first," "the second," etc., are used to avoid confusion of constituent elements. This is added for the purpose of providing a numerical limit, and is not intended to limit the number of items.

[0033] (Embodiment 1) In this embodiment, an example of the configuration and application of a display device according to one aspect of the present invention are shown in the drawings. I will explain by referring to it.

[0034] [Configuration Example 1] Figure 1(A) is a schematic top view of a display panel 100 included in a display device according to one embodiment of the present invention. be.

[0035] The display panel 100 has a display area 101 and, adjacent to the display area 101, a visible light-transmitting panel. It comprises region 110 and region 120 that blocks visible light. Also, in Figure 1(A), Panel 100 has an FPC (Flexible Printed Circuit) 112 Examples of such facilities are shown below.

[0036] The display area 101 includes multiple pixels arranged in a matrix, and displays an image. This is possible. Each pixel is provided with one or more display elements. As for the display elements, In principle, light-emitting elements such as organic EL elements or liquid crystal elements can be used.

[0037] Region 110 contains, for example, a pair of substrates that constitute the display panel 100, and the pair of substrates A sealing material or the like may be provided to seal the display element held between them. The member provided in region 110 is made of a material that is transparent to visible light.

[0038] Area 120 is provided with wiring that electrically connects to pixels included in the display area 101, for example. In addition to this wiring, there is also a drive circuit (scan line drive) for driving the pixels. A circuit (such as a signal line drive circuit) may be provided. Also, region 120 may contain an FPC112 Terminals that are electrically connected to (also called connection terminals), and wiring that is electrically connected to said terminals It may be provided.

[0039] A display device 10 according to one aspect of the present invention comprises a plurality of the above-described display panels 100. Figure 1(B The diagram below shows a schematic top view of a display device 10 equipped with three display panels.

[0040] Furthermore, from here on, we will refer to each display panel in relation to each other, and to the components contained within each display panel in relation to each other. Alternatively, to distinguish between the components related to each display panel, an alphabet is added after the code. The term "t" is added to the explanation. Unless otherwise specified, the bottommost part (opposite the display side) is used. The display panels or components placed in ) are marked with "a" and arranged in order above them. For one or more display panels and their components, the letter "b" and subsequent letters are added after the symbol. The letters will be listed in alphabetical order. Unless otherwise specified, multiple letters will be listed. Even when describing a configuration that includes a display panel, each display panel or component may be described in detail. When explaining common points, the letters are omitted.

[0041] The display device 10 shown in Figure 1(B) includes a display panel 100a, a display panel 100b, and a table It is equipped with a display panel 100c.

[0042] Display panel 100b is arranged such that a portion of it overlaps the upper side (display surface side) of display panel 100a. It is placed there. Specifically, a part of the display area 101a of the display panel 100a and the display panel The visible light-transmitting region 110b of 100b is superimposed, and the display of the display panel 100a Area 101a and area 120b that blocks visible light from the display panel 100b do not overlap. It is located there.

[0043] Furthermore, a portion of the display panel 100c overlaps the upper side (display surface side) of the display panel 100b. They are positioned horizontally. Specifically, a portion of the display area 101b of the display panel 100b and the display area 101b. The visible light-transmitting region 110c of panel 100c is superimposed, and the display panel 100b The display area 101b and the visible light-blocking area 120c of the display panel 100c are superimposed. They are arranged in a specific way.

[0044] Since a visible light-transmitting area 110b is superimposed on the display area 101a, the display area 10 The entirety of 1a can be viewed from the display surface side. Similarly, the display area 101b is also an area The superimposition of 110c allows the entire image to be viewed from the display side. Therefore, Display area 101a, display area 101b, and display area 101c are arranged seamlessly in a region The area (the area enclosed by the dashed line in Figure 1(B)) can be designated as the display area 11 of the display device 10. This is the result.

[0045] Here, the width W of region 110 shown in Figure 1(A) is preferably 0.5 mm or more and 150 mm or less. Or, 1 mm to 100 mm, more preferably 2 mm to 50 mm. Preferred. Since region 110 functions as a sealing region, the width W of region 110 is large. The distance between the end face of the display panel 100 and the display area 101 can be made longer, and from the outside This makes it possible to effectively suppress the intrusion of impurities such as water into the display area 101. In particular, in this configuration example, since area 110 is provided adjacent to display area 101, area 11 It is important to set the width W of 0 to an appropriate value. For example, an organic EL element as a display element. When using this method, the width W of region 110 is set to 1 mm or more, thereby reducing the degradation of the organic EL element. It can be effectively suppressed. Furthermore, in areas other than area 110, the display area Set the distance between the end of 101 and the end face of the display panel 100 to be within the range described above. It is preferable.

[0046] [Configuration Example 2] Figure 1(B) shows a configuration in which multiple display panels 100 are stacked in one direction, but vertically Multiple display panels 100 may be arranged in overlapping positions in both the horizontal and vertical directions.

[0047] Figure 2(A) shows an example of a display panel 100 with a different shape of region 110 from that of Figure 1(A). The display panel 100 shown in Figure 2(A) is located along two adjacent sides of the display area 101. Area 110 is located there.

[0048] Figure 2(B) shows a display with two of the display panels 100 shown in Figure 2(A) arranged vertically and horizontally. Figure 2(C) shows a schematic perspective view of the device 10. Figure 2(C) shows the opposite side of the display device 10. This is a schematic diagram of a perspective view from the opposite side.

[0049] In Figures 2(B) and (C), along the shorter side of the display area 101a of the display panel 100a The area and a portion of the area 110b of the display panel 100b are superimposed. The area along the longer side of the display area 101a of panel 100a, and area 1 of display panel 100c A portion of 10c is superimposed. Also, the area 110d of the display panel 100d is a display The area along the long side of the display area 101b of display panel 100b, and the display area of ​​display panel 100c It is provided superimposed on the area along the shorter side of the indicated area 101c.

[0050] Therefore, as shown in Figure 2(B), display area 101a, display area 101b, display area Area 101c and display area 101d are arranged seamlessly in the display area of ​​the display device 10 It becomes possible to set the region to 11.

[0051] Here, a flexible material is used for the pair of substrates used in the display panel 100, and the display panel It is preferable that the 100 has flexibility. This is done, for example, as shown in Figure 2(B), As shown in the display panel 100a in C), when the FPC 112a etc. is provided on the display surface side In conjunction with this, a portion of the display panel 100a on the side where the FPC112a is installed is curved, and the FPC11 Position 2a so that it overlaps the lower part of the display area 101b of the adjacent display panel 100b. This is possible. As a result, the FPC112a is physically separated from the back surface of the display panel 100b. They can be arranged without interfering with each other. Also, display panel 100a and display panel 100b When overlapping and bonding them, there is no need to consider the thickness of FPC112a, so the display panel The height between the upper surface of area 110b of 100b and the upper surface of the display area 101a of display panel 100a The difference in size can be reduced. As a result, the edge of the display panel 100b located on the display area 101a This can prevent the part from being visible.

[0052] Furthermore, by making each display panel 100 flexible, the display area of ​​display panel 100b The height of the top surface in area 101b is the top surface of the display area 101a of the display panel 100a. The display panel 100b can be gently curved to match its height. Therefore, except for the area near where display panel 100a and display panel 100b overlap, each display area It is possible to align the height of the area, and the display quality of the image displayed in the display area 11 of the display device 10 It can improve.

[0053] The above explanation used the relationship between display panel 100a and display panel 100b as an example, but adjacent The same applies between the two display panels.

[0054] Furthermore, in order to reduce the height difference between two adjacent display panels 100, the display panel 100 A thinner thickness is preferable. For example, the thickness of the display panel 100 should be 1 mm or less, preferably 3 mm. It is preferable that the particle size be 00 μm or less, and more preferably 100 μm or less.

[0055] Figure 3(A) is a schematic top view of the display device 10 shown in Figures 2(B) and (C), as seen from the display surface side. That is the case.

[0056] Here, the visible light (for example, 400 nm to 700 nm) of area 110 of one display panel 100 If the transmittance to light (including light with wavelengths of less than nm) cannot be sufficiently increased, the display area The brightness of the displayed image decreases depending on the number of display panels 100 that overlap with 101. There is a risk. For example, in area A in Figure 3(A), the display area 10 of the display panel 100a A single display panel 100c is superimposed on 1a. Also, in area B, display panel 10 Two display panels 10, display panels 100c and 100d, are placed on the display area 101b of 0b. There are overlapping zeros. And in area C, it is displayed on the display area 101a of display panel 100a. A total of three display panels 100b, display panel 100c, and display panel 100d. 00 is superimposed.

[0057] In such cases, depending on the number of display panels 100 superimposed on the display area 101, It is preferable to apply a correction to the image data to be displayed that locally enhances the tonal range of the pixels. It seems that this reduces the display quality of the image displayed in the display area 11 of the display device 10. This makes it possible to suppress the lower part.

[0058] Furthermore, by shifting the position of the display panel 100 located at the top, the lower display panel 10 It is also possible to reduce the number of display panels 100 that overlap the display area 101 of 0.

[0059] Figure 3(B) shows the display panels to be placed on display panel 100a and display panel 100b. The length of the width W of area 110 is the same as the length of the 100c and 100d in one direction (X direction). This shows the case where the elements are arranged with a relative offset. In this case, the display of one display panel 100 Region D, in which one display panel 100 is superimposed on region 101, and two display panels 100 There are two types of regions E in which these are superimposed.

[0060] Furthermore, the display panel 100 is shifted relative to the direction perpendicular to the X direction (Y direction). You may place it there.

[0061] Furthermore, if the display panel 100 located at the top is positioned with a relative offset, each display The contour of the area formed by combining the display areas 101 of panel 100 is a shape different from a rectangular shape. Therefore, when making the display area 11 of the display device 10 rectangular, as shown in Figure 3(B) This means that the image will not be displayed in the display area 101 of the display panel 100, which is located outside of this area. The sea urchin display device 10 should be driven. At this time, the number of pixels in the area where the image is not displayed Taking this into consideration, the total number of pixels in the rectangular display area 11 is greater than the number obtained by dividing it by the number of display panels 100. The pixels can be placed in the display area 101 of the display panel 100.

[0062] In the above, the distance at which each display panel 100 is shifted relative to the area 110 The width W is an integer multiple, but this is not limited to this, and the shape of the display panel 100 and combinations thereof The settings should be adjusted appropriately, taking into consideration the shape of the display area 11 of the display device 10.

[0063] In one aspect of the present invention, the display device 10 allows for the connection of display panels 100 indefinitely. It is possible, and the size of the display area 11 can be expanded without limit. For example, for home use When used, the size of the display area 11 should preferably be between 20 inches and 100 inches diagonally. The diagonal size should be between 40 and 90 inches. Also, portable devices such as tablets. When applied to electronic devices of this type, the size of the display area 11 should be 5 inches or more diagonally than 30 inches. The following are preferable, such as 10 inches or more and 20 inches or less. Also, large commercial signs When used for purposes such as the above, the size of the display area 11 should be 80 inches or more diagonally, 100 inches or more diagonally, It can also be 200 inches or larger.

[0064] Furthermore, the display device 10 according to one aspect of the present invention has no upper limit on the resolution (number of pixels) of the display area 11. It is possible to increase the resolution. For example, the resolution of the display area 11 can be increased to HD (1280 pixels x 7 20) FHD (1920 x 1080 pixels), WQHD (2560 x 1440 pixels) WQXGA (2560 x 1600 pixels), 4K (3840 x 2160 pixels), 8K It is preferable to adjust to a standardized resolution, such as (7680 x 4320 pixels). In particular, a display device with a high resolution of 4K, more preferably 8K or higher. This is preferable. For personal use such as portable devices or home use, the higher the resolution, the better. As the resolution increases, it becomes possible to enhance the sense of realism and depth. Also, commercial When used on boards or similar surfaces, a higher resolution allows for more information to be displayed.

[0065] [Example of cross-sectional configuration] Figure 4(A) is a schematic cross-sectional view of the two display panels 100 joined together. In this case, FPC112a is on the display side of display panel 100a, and FPC112b is on the display side The configurations connected to the display side of panel 100b are shown.

[0066] Furthermore, as shown in Figure 4(B), FPC112a and FPC112b are located on the display panel 1 The connection may also be made to the opposite side from the display surface side of 00a or display panel 100b. With this configuration, the end of the display panel 100a located on the lower side is the display panel Because it can be attached to the back of 100b, the adhesive area can be increased, and bonding This can increase the mechanical strength of the joint.

[0067] Furthermore, as shown in Figures 4(C) and 4(D), the display panel 100a and the display panel The upper surface of the 100b may be covered with a translucent resin layer 131. Specifically, the display areas of display panel 100a and display panel 100b, and the display panel A resin layer 131 is provided to cover the area where the 100a and the display panel 100b overlap. This is preferable.

[0068] By providing the resin layer 131 across multiple display panels 100, the mechanical properties of the display device 10 are improved. Strength can be increased. Also, if the surface of the resin layer 131 is formed to be flat, The display quality of the image displayed in the display area 11 can be improved. For example, slit code Coatings such as curtain coater, gravure coater, roll coater, and spin coater. Using the apparatus, a highly flat resin layer 131 can be formed.

[0069] Furthermore, the resin layer 131 has a refractive index difference of 20 compared to the substrate used on the display surface side of the display panel 100. It is preferably % or less, preferably 10% or less, and more preferably 5% or less. By using a resin layer 131 with a refractive index, the refractive index step between the display panel 100 and the resin is eliminated. This reduces the difference and allows light to be efficiently extracted to the outside. A resin layer 131 is provided to cover the step between display panel 100a and display panel 100b. As a result, the stepped portion becomes difficult to see, and is therefore displayed in the display area 11 of the display device 10. This can improve the display quality of images.

[0070] Examples of materials used for the resin layer 131 include epoxy resin, aramid resin, and acrylic resin. Organic resin films such as resins, polyimide resins, polyamide resins, and polyamide-imide resins are used. It is possible.

[0071] Furthermore, as shown in Figures 5(A) and (B), the display device 10 is protected via the resin layer 131. It is preferable to provide a substrate 132. In this case, the resin layer 131 is the display device 10 and the protective substrate It may also function as an adhesive layer that bonds to 132. The protective substrate 132 allows the surface This not only protects the surface of the display device 10, but also increases the mechanical strength of the display device 10. The protective substrate 132 is made of a light-transmitting material in at least the area overlapping with the display area 11. A material is used. Also, the protective substrate 132 is designed so that areas other than the area overlapping with the display area 11 are not visible. It may also have light-blocking properties.

[0072] The protective substrate 132 may also have a function as a touch panel. If 00 is flexible and bendable, then the protective substrate 132 is similarly flexible. It is preferable.

[0073] Furthermore, 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 with 31 is 20% or less, preferably 10% or less, more preferably 5% or less. It is preferable to do so.

[0074] 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), silico Plastic substrates such as resin or glass substrates can be used. The substrate 132 is preferably flexible. Furthermore, the protective substrate 132 may also contain fibers. This includes, for example, prepregs. Also, the protective substrate 132 is made of a resin film. It is not limited to transparent nonwoven fabrics made by processing pulp into continuous sheets, or fibroin. Sheets containing artificial spider silk fibers with protein, composites made by mixing these with resin, and fibers. A laminate of nonwoven fabric and resin film made of cellulose fibers with a width of 4 nm to 100 nm, artificial A laminate of a sheet containing spider silk fibers and a resin film may also be used.

[0075] Furthermore, as shown in Figures 5(C) and (D), display panel 100a and display panel 100 A resin layer 133 and a protective substrate 134 are provided on the side opposite to the display surface of b via the resin layer 133. This configuration may also be used. In this way, the display panel 100a and the display panel 100b are arranged in a 2 By sandwiching the device between two protective substrates, the mechanical strength of the display device 10 is further enhanced. This is possible. Also, the resin layer 131 and the resin layer 133 are made of the same thickness, and the protective substrate 132 By using a material of the same thickness for the protective substrate 134, multiple display panels 100 can be made These can be placed in the central part of the laminate. For example, a laminate including the display panel 100 can be placed in the center. When bending, the display panel 100 is positioned in the center in the thickness direction, thus creating a curve. Consequently, the lateral stress on the display panel 100 is relieved, preventing damage. .

[0076] Furthermore, as shown in Figures 5(C) and (D), display panel 100a and display panel 100 The resin layer 133 and protective substrate 134 located on the back side of b are fitted with FPC 112a. It is preferable to provide an opening for dispensing. Also, at this time, the resin layer 133 is FPC112 When a is installed covering a part of it, the connection between the display panel 100a and the FPC 112a is This increases mechanical strength and suppresses problems such as peeling of FPC112a. Similarly, it is preferable to provide a resin layer 133 covering a portion of the FPC 112b.

[0077] Furthermore, the resin layer 133 and protective substrate 134 provided on the opposite side of the display surface are not necessarily It is not necessary for the material to be translucent; materials that absorb or reflect visible light may be used. (Resin) The same material is used for both layer 133 and resin layer 131, or for both protective substrate 134 and protective substrate 132. Using this method can reduce manufacturing costs.

[0078] [Example of display area configuration] Next, we will explain an example of the configuration of the display area 101 of the display panel 100. Figure 6(A) is Figure 2(A) is a top view schematic of an enlarged version of region P, and Figure 6(B) is an enlarged version of region Q. This is a schematic top view.

[0079] As shown in Figure 6(A), multiple pixels 141 are arranged in a matrix within the display area 101. It is designed to be a display panel 100 capable of full-color display using three colors: red, blue, and green. In this case, pixel 141 is a pixel capable of displaying any of the three colors mentioned above. Alternatively, pixels capable of displaying white or yellow in addition to the three colors mentioned above may be provided. Pixel 141 The area containing this corresponds to display area 101.

[0080] One pixel 141 is electrically connected to wiring 142a and wiring 142b. Each of the number of wires 142a crosses wire 142b and is electrically connected to circuit 143a. Furthermore, multiple wires 142b are electrically connected to circuit 143b. One of circuits a and 143b functions as a scan line drive circuit, and the other is a signal This circuit can function as a line drive circuit. Note that circuits 143a and 1 The configuration may also be one or both of the features in 43b omitted.

[0081] Figure 6(A) shows multiple wires 14 that are electrically connected to circuit 143a or circuit 143b. A 5 is provided. Wiring 145 is electrically connected to FPC 123 in an area not shown. It has the function of supplying external signals to circuits 143a and 143b.

[0082] In Figure 6(A), the region including circuit 143a, circuit 143b, and multiple wires 145 is This corresponds to region 120, which blocks visible light.

[0083] In Figure 6(B), the region outside of the outermost pixel 141 transmits visible light. This corresponds to region 110. Region 110 consists of pixel 141, wiring 142a and wiring 142 It does not have a component that blocks visible light such as b. Furthermore, part of the pixel 141 and wiring 142a Alternatively, if the wiring 142b is transparent to visible light, it extends to region 110. It may be provided.

[0084] Here, the width W of region 110 is the widest of the regions 110 provided on the display panel 100. It can also refer to a narrow width. If the width W of the display panel 100 varies depending on the location, A short length can be defined as the width W. Note that in Figure 6(B), the distance from pixel 141 to the edge of the substrate is... This shows the case where the distance (i.e., the width W of region 110) is the same in the vertical and horizontal directions of the drawing. They are doing it.

[0085] Figure 6(C) is a schematic cross-sectional view of the cutting line A1-A2 in Figure 6(B). Display panel Each of the 100 has a pair of translucent substrates (substrate 151, substrate 152). Substrates 151 and 152 are bonded together by an adhesive layer 153. Here, pixel 141 The substrate on the side where wiring 142b etc. is formed is referred to as substrate 151.

[0086] As shown in Figures 6(B) and (C), when pixel 141 is located at the very edge of the display area 101 In this case, the width W of the visible light-transmitting region 110 is from the edge of the substrate 151 or substrate 152. This is the length to the edge of pixel 141.

[0087] The edge of pixel 141 refers to the last of the components that block the visible light contained in pixel 141. It also refers to the end of a component located at the edge. Alternatively, as pixel 141, it refers to a light-emitting element between a pair of electrodes. When using a light-emitting element (also called an organic EL element) that has a layer containing an organic compound, pixel 1 The ends of 41 are the ends of the lower electrode, the ends of the layer containing the luminescent organic compound, and the ends of the upper electrode. It's okay if it's slightly off.

[0088] Figure 7(A) shows the case where the position of wiring 142a is different from that in Figure 6(B). Furthermore, Figure 7(B) is a schematic cross-sectional view of the cutting line B1-B2 in Figure 7(A). Figure 7(C) is a schematic cross-sectional view along the cutting line C1-C2 in Figure 7(A).

[0089] As shown in Figures 7(A), (B), and (C), the wiring 142a is located at the very edge of the display area 101. If positioned, the width W of the visible light-transmitting region 110 is the same as that of substrate 151 or substrate 152. This is the length from the end of to the end of wiring 142a. Note that wiring 142a is relative to visible light. If it is translucent, even if the area where the wiring 142a is provided is included in area 110 good.

[0090] Here, if the pixel density in the display area 101 of the display panel 100 is high, then two When the display panels 100 are attached, misalignment may occur.

[0091] Figure 8(A) shows the display area 101a of the display panel 100a located at the bottom, and the display area 101a located at the top. Positional relationship between the display area 101b of the display panel 100b and the display surface side when viewed from the display surface. This is a diagram. Figure 8(A) shows the respective display areas 101a and 101b. This shows the vicinity of a corner. Part of the display area 101a is covered by area 110b. .

[0092] In the example shown in Figure 8(A), adjacent pixels 141a and 141b are relatively unidirectional ( This shows the case where the display panel 100a is shifted in the Y direction. The arrows shown in the figure indicate that the display panel 100a is shifted in the Y direction. It shows a direction shifted relative to 100b. Also, in the example shown in Figure 8(B), adjacent Pixel 141a and pixel 141b are relative to each other in the vertical and horizontal directions (X and Y directions) This shows the case where the deviation is in both directions.

[0093] In the examples shown in Figures 8(A) and 8(B), the distance shifted horizontally and the distance shifted vertically are... Each of these is smaller than 1 pixel. In such cases, display area 101a or display area For the image data of the image displayed on either of 101b, an adjustment corresponding to the distance of the displacement is applied. By multiplying by positive, it becomes possible to maintain display quality. Specifically, when the distance between pixels is small In the case of a large misalignment, the pixel gradation (brightness) is corrected to be lower, and the distance between pixels is large. In the case of a misalignment, the correction can be made by increasing the pixel's gradation (brightness). Also, two When pixels overlap, the image data is shifted by one row so as not to drive the lower-most pixel. You just need to correct it so that it works.

[0094] In Figure 8(C), pixels 141a and 141b, which should have been adjacent, are relative to each other. This shows an example where the image is shifted by a distance of more than one pixel in one direction (Y direction). If a deviation exceeding a certain distance occurs, the protruding pixel (the pixel with hatching added) will be displayed. You should drive it in a way that prevents it from showing. The same applies when the direction of the displacement is in the X direction.

[0095] Furthermore, when joining multiple display panels 100 together, each panel is designed to suppress misalignment. It is preferable to provide the display panel 100 with markers or the like for alignment. Alternatively, Convex and concave portions are formed on the surface of the display panel 100, in the area where the two display panels 100 overlap. Alternatively, the convex portion and the concave portion may be fitted together (snugly connected).

[0096] Furthermore, taking into account the accuracy of positional misalignment, the display area 101 of the display panel 100 is pre-filled. It is preferable to have more pixels than the number of pixels to be used. For example, an image along a scan line. At least one of the pixel rows or the pixel rows along the signal lines is one or more rows, preferably three. It is preferable to provide more than five columns, more preferably more than the number of pixel columns used for display. It seems so.

[0097] [Application Example 1] A display device 10 according to one aspect of the present invention increases the number of display panels 100, thereby increasing the display area The area of ​​region 11 can be increased without limit. Therefore, the display device 10 is digital It can be used effectively for applications that display large images, such as digital signage and PID displays.

[0098] Figure 9(A) shows an example in which a display device 10 according to one aspect of the present invention is applied to a column 15 and a wall 16. It is being used as a display panel 100 for the display device 10, and a flexible display panel is being used. By using this method, it becomes possible to install the display device 10 along a curved surface.

[0099] Here, the more the number of display panels 100 used in the display device 10 increases, the more the signal that drives each of them increases. The size of the wiring board required to supply the numbers becomes large. Furthermore, the area of ​​the display device 10 Larger values ​​require longer wiring, which can easily cause signal delays and negatively impact display quality. Sometimes it can get messy.

[0100] Therefore, each of the multiple display panels 100 provided by the display device 10 is configured to have a display panel 100 It is preferable to have a configuration that includes a wireless module that supplies the driving signal.

[0101] Figure 9(B) shows an example of a cross-section when the display device 10 is installed on the surface of a cylindrical column 15. The display device 10, which has multiple display panels 100, consists of an interior member 21 and an exterior member 2 It is positioned between 2 and curved along the surface of column 15.

[0102] One display panel 100 is electrically connected to the wireless module 150 via the FPC 112. The display panel 100 is provided between the interior member 21 and the exterior member 22. The wireless module 150 is supported on the upper side of member 23 and positioned on the lower side of support member 23. The display panel 100 and the wireless module 150 are separated by an opening provided in the support member 23. It is electrically connected via the FPC112.

[0103] Furthermore, Figure 9(B) shows a configuration in which a light-shielding portion 26 is provided on a part of the exterior member 22. By providing the light unit 26 so as to cover an area other than the display area of ​​the display device 10, the said area The configuration can be designed so that it is not visible to the observer.

[0104] The wireless module 150 transmits from an antenna 25 located inside or outside the pole 15. The wireless signal 27 is received. The display panel 100 is also driven from the wireless signal 27. It has the function of extracting a signal for and supplying this signal to the display panel 100. The signals used to drive the 100 are power supply potential, synchronization signal (clock signal), and image signal. These include:

[0105] For example, each wireless module 150 is assigned a unique number. The wireless signal 27 transmitted from the antenna 25 includes a signal specifying a unique number and a display panel 10 Includes a signal to drive 0. Each wireless module 150 is unique to the wireless signal 27. When the number matches its own unique number, a signal is received to drive the display panel 100. Then, by supplying this to the display panel 100 via the FPC 112, each display panel 10 You can display a different image in position 0.

[0106] The wireless module 150 is an active type wireless module that is powered by the wireless signal 27. It could be a casing, or a passive wireless module with a built-in battery, etc. Good. In the case of passive wireless modules, electromagnetic induction, magnetic resonance, radio wave methods, etc. The transfer of power used (also known as contactless power transmission, wireless power transfer, etc.) (u) The built-in battery may be configured to be rechargeable.

[0107] With this configuration, even a large display device 10 can utilize each display panel 100. There is no delay in the signal used for operation, and the display quality can be improved. Also, the wireless signal 27 Because it is driven by, when installing the display device 10 on a wall or pillar, wiring is run through the wall or pillar. No construction work is required, and the display device 10 can be easily installed in any location. Similarly, it is easy to change the installation location of the display device 10.

[0108] In the above configuration, one wireless module 150 is connected to each display panel 100. The configuration involves connecting one wireless module 150 for every two or more display panels 100. That's good too.

[0109] For example, a display device according to one aspect of the present invention may have at least two display panels. Furthermore, a first signal is extracted from the received wireless signal and supplied to the first display panel. A first wireless module and a second signal extracted from the said wireless signal and displayed on a second display panel. It is sufficient to have at least a second wireless module to supply to Nell.

[0110] [Application Example 2] The following describes an example of an electronic device to which a display device 10 according to one aspect of the present invention is applied.

[0111] Figures 10(A) and (B) show perspective views of the electronic device 50. The electronic device 50 is supported by a support 51 a, support 51b, display panel 100a, display panel 100b, and display panel 100c It holds.

[0112] Supports 51a and 51b are rotatably connected by a hinge 52. Display panel 100a is supported by support 51a. Display panel 100c is supported It is supported by the body 51b. Also, of the three display panels, at least display panel 10 The display panel 100b, located between 0a and display panel 100c, is flexible. Display panel 100a and display panel 100c do not necessarily have to be flexible, but they Using the same configuration can improve mass production efficiency.

[0113] Figure 10(A) shows display panels 100a, 100b, and 100c. Each shows a state where they are located approximately on the same plane (called the unfolded state). Also see Figure 10(B). This is a state in which display panel 100a and display panel 100c are positioned so that they overlap each other (folded). This shows the folded state. Supports 51a and 51b of the electronic device 50 are unfolded. It can be reversibly transformed between its unfolded state and its folded state.

[0114] Each display panel of the electronic device 50 preferably includes a touch sensor. Sensor types include capacitive, resistive, surface acoustic wave, infrared, and optical. Various methods can be used. In particular, the capacitive method is preferred. Furthermore, as a touch sensor, an active-matrix type equipped with capacitive and transistors is used. A touch sensor is preferable. Touch sensor and touch panel equipped with a touch sensor. Specific examples of the configuration of the device will be described in a later embodiment.

[0115] Furthermore, the display device provided by the electronic device 50 is supported by each support so as to slide. It is preferable that the display device is supported by each support so as not to move in the thickness direction. It is preferable that the display device is curved in the direction parallel to the display surface. It is preferable that it slides and is supported by each support so as not to move in a direction perpendicular to it. It is possible to use this support method to, for example, bend a display device from a flat state. When it deforms into this state, the position that occurs on the display device depends on the distance from the neutral plane to the display panel. The misalignment can be compensated for by sliding motion. As a result, stress is not applied to the display device. This can prevent damage from occurring. Also, one of the multiple supports and the display device This means that it may be fixed in place so as not to slide. Also, the display device may have a part that is stretchable. It may have the following: The above-mentioned misalignment can be compensated for by the expansion and contraction of a part of the display device. Furthermore, the bending part of the display device is designed so that it flexes when the display device is flat, and the display device is designed accordingly. It may be fixed to a support. The above-mentioned misalignment can be compensated for by allowing the display device to flex. can.

[0116] The method of supporting the display device and each support of the electronic device 50 is not particularly limited. A method of sandwiching a display device between two members that have been processed to form grooves into which the device fits. Using such a device, the display device can be supported so that it slides. When fixing to the support, for example, by adhesive, by fixing with screws, etc., by a component Methods include mechanically fixing the display device by sandwiching it between other components.

[0117] In the folded state shown in Figure 10(B), the display panel 100b has a curved display area. It has a region that bends in such a way. Here, display panel 100a and display panel 100b and The area where they overlap, and the area where display panel 100b and display panel 100c overlap, are curved. It is preferable to avoid placing it in the area. In particular, the area that transmits visible light of each display panel Of region 110a, region 110b, and region 110c, the direction in which the display device is curved is perpendicular to the direction in which it is curved. It is preferable that the portion provided in a strip-like shape in the direction is not located in a bending region. The area where the two display panels overlap is thicker and less flexible than other areas. Because this can happen, the display surface can be made into a smooth curved shape by positioning it to avoid curved parts. This can be done. Also, if the part where the two display panels are glued together is repeatedly deformed, Because there is a risk of these peeling off, position this part so as to avoid bending. This can improve the reliability of electronic devices.

[0118] An electronic device 50 according to one aspect of the present invention is a display device having a plurality of display panels, with two support It has a structure supported by a body. The display device can be deformed, such as by bending. Yes, for example, bending the display panel 100b so that the display surface faces inward (inward bending), It is possible to bend it outwards (outward bending). Electronic device 50 in one aspect of the present invention The display device offers excellent portability when folded, and the seams are invisible when unfolded. The wide display area provides excellent readability of the display. In other words, the electronic device 50 provides excellent readability of the display. It can be described as an electronic device that achieves both improved performance and high portability.

[0119] Figure 11(A) shows the unfolded state of the electronic device 50 shown in Figure 10(A), along the cutting line D1- This is a schematic cross-sectional view when cut along D2. Also, Figure 11(B) is shown in Figure 10(B). The cross-sectional shape of the electronic device 50 when cut along the cutting lines E1-E2 in the folded state. This is a schematic diagram.

[0120] As shown in Figures 11(A) and (B), the substrate 5 has terminals 54a inside the support 51a. It has 3a. Similarly, the substrate 53 has terminals 54b and 54c inside the support 51b. b is provided. The display panel 100a is electrically connected to terminal 54a via FPC 112a. The display panel 100b is electrically connected to terminal 54b via FPC112b. Panel 100c is electrically connected to terminal 54c via FPC112c.

[0121] Furthermore, as shown in Figures 11(A) and (B), a battery (Battery 5) is located inside each support. It is preferable to have a configuration that includes batteries 5a and 55b. The electronic device 50 has multiple batteries By using a configuration that includes a battery, the frequency of charging can be reduced. Alternatively, each This allows for a reduction in the battery capacity, thereby reducing the volume of each battery. This reduces the thickness of the support 51a and support 51b, thereby improving portability.

[0122] Furthermore, as shown in Figure 11(B), in the folded state, support 51a and support 51 It is preferable that the display panel 100b curves along the curved surface of b. Of the surfaces of the holding body 51a and the support body 51b, the corners are not located on the surface that can contact the display panel 100b. By making the surface into a curved surface shape with an appropriate radius of curvature, the problem that the display panel 10 0b is damaged by bending with a radius of curvature smaller than that allowed can be prevented.

[0123] Figs. 12(A) and (B) show an electronic device 70 having a configuration different from that of the electronic device 50. The electronic device 70 mainly differs from the electronic device 50 in that it has a support body 51 c between the support body 51a and the support body 51b, and in that it has a plurality of display panels (display panels 10 00a to 100j) arranged side by side in the vertical and horizontal directions.

[0124] Fig. 12(A) is a perspective schematic view of the electronic device 70 in the unfolded state, and Fig. 12(B) is a perspective schematic view in the folded state.

[0125] The support body 51a and the support body 51c are rotatably connected by a hinge 52a. Also, the support body 51c and the support body 51b are rotatably connected by a hinge 52b. The display panel 100a and the display panel 100f are supported by the support body 51a. Also, the display panel 100c and the display panel 100h are supported by the support body 51c. Also, the display panel 100e and the display panel 100j are supported by the support body 51b. The display panels 100b, 100d, 100 g, and 100i, which are provided so as to straddle at least each support body, each have flexibility.

[0126] In the electronic device 70 according to one aspect of the present invention, a part of the flexible display device is provided on three support bodies. ​​​​Therefore, it has a supported configuration. The display device can be deformed, such as by bending. For example, bend display panel 100b and display panel 100g so that the display surface faces inward. It is possible to bend it inward or outward. One aspect of the present invention The electronic device 70 offers excellent portability when the display device is folded, and is convenient when unfolded. The wide display area, where seams are not visible, provides excellent readability of the display. The 0 can be described as an electronic device that achieves both improved display readability and high portability.

[0127] As shown in Figures 12(A) and 12(B), the overlapping areas of each display panel are located in the curved area. It is preferable to avoid this. In particular, the visible light-transmitting region 110 of each display panel Among the regions 110a to 110j, a strip is provided in a direction perpendicular to the direction in which the display device is bent. It is preferable that the part that is bent does not fall in the bending region. Also, it transmits visible light. Of the region 110, the portion provided in a strip shape in a direction parallel to the direction of curvature is: Because it has relatively high mechanical strength against bending, it can be located in a bending region.

[0128] Figure 13 shows the cutting line F1-F in the folded state of the electronic device 70 shown in Figure 12(B). This is a schematic cross-sectional view when cut along 2. Inside the support 51c are support 51a and It has a substrate 53c, similar to the support 51b. Furthermore, the support 51c also contains a battery 55c. It is preferable that it has [this feature].

[0129] The above describes the configuration of electronic devices having two or three supports, but what about four or more? A support structure may be provided. A display device according to one aspect of the present invention is easily made large in area. Therefore, by increasing the number of supports, it is possible to increase the display area in the unfolded state. In addition, the area of one support can also be increased.

[0130] This embodiment can be implemented in appropriate combination with other embodiments described in this specification, at least in part. It can be implemented in combination.

[0131] (Embodiment 2) In this embodiment, a display panel applicable to a display device according to one aspect of the present invention will be described with reference to the drawings. Here, as an example of the display panel, a touch panel having a function as a touch sensor will be described. Here, as an example of the display panel, a touch panel having a function as a touch sensor will be described. It will be described.

[0132] FIG. 14(A) is a top view for explaining the structure of a touch panel applicable to a display device according to one aspect of the present invention. FIG. 14(B) is a cross-sectional view taken along cutting lines A-B and C-D in FIG. 14(A). FIG. 14(C) is a cross-sectional view taken along cutting line E-F in FIG. 14(A). FIG. 14(B) is a cross-sectional view taken along cutting lines A-B and C-D in FIG. 14(A). FIG. 14(C) is a cross-sectional view taken along cutting line E-F in FIG. 14(A).

[0133] [Explanation of the top view] The touch panel 300 illustrated in this embodiment has a display unit 301 (see FIG. 14(A)). Reference).

[0134] The display unit 301 includes a plurality of pixels 302 and a plurality of imaging pixels 308. The imaging pixels 308 can detect a finger or the like that touches the display unit 301. Thus, the imaging pixels 308 can be used to constitute a touch sensor. Thus, the imaging pixels 3 can be used to form a touch sensor. It can be configured.

[0135] The pixel 302 includes a plurality of sub-pixels (for example, sub-pixel 302R), and the sub-pixel includes a light-emitting element and a pixel circuit that can supply power for driving the light-emitting element. And a pixel circuit that can supply power to drive the light-emitting element.

[0136] The pixel circuit can supply selection signals and image signals. The wiring is connected electrically.

[0137] Furthermore, the touch panel 300 is a scan line drive that can supply selection signals to the pixels 302. Circuit 303g(1) and an image signal line drive circuit that can supply an image signal to the pixel 302. It is equipped with road 303s(1).

[0138] The imaging pixel 308 includes a photoelectric conversion element and an imaging pixel circuit that drives the photoelectric conversion element. .

[0139] The imaging pixel circuit has wiring and power supply potential that can supply control signals. It is electrically connected to the wiring that allows it to function.

[0140] One example of a control signal is selecting the imaging pixel circuit that reads out the recorded imaging signal. A signal that can be generated, a signal that can initialize the imaging pixel circuit, and a signal that the imaging pixel circuit can emit light Examples include signals that allow for the determination of the detection time.

[0141] The touch panel 300 can supply control signals to the image pixel 308 as an image pixel drive. It comprises circuit 303g(2) and imaging signal line driving circuit 303s(2) for reading out the imaging signal. .

[0142] The touch panel 300 has a visible light-transmitting area 110 along two sides of the display unit 301. El.

[0143] [Explanation of the cross-sectional view] The touch panel 300 has a substrate 310 and a counter substrate 370 facing the substrate 310. (See Figure 14(B)).

[0144] The substrate 310 is a flexible substrate 310b, and a barrier is provided to prevent the diffusion of impurities to the light-emitting element. The film 310a and the substrate 310b are bonded together by an adhesive layer 310c. It is a laminated structure.

[0145] The opposing substrate 370 is a flexible substrate 370b, and a barrier prevents the diffusion of impurities to the light-emitting element. The rear film 370a and the substrate 370b are bonded together by the adhesive layer 370c. It is a laminated structure (see Figure 14(B)).

[0146] The sealing material 360 bonds the opposing substrate 370 and the substrate 310 together. It has a refractive index greater than that of air, and the two members (in this case, the opposing substrate 37) sandwich the sealing material 360. It also functions as a layer that optically bonds 0 and the substrate 310 (hereinafter also referred to as the optical bonding layer). The pixel circuit and light-emitting element (e.g., the first light-emitting element 350R) are located on substrate 310 and opposing substrate 3 It's between 70.

[0147] [Pixel composition] Pixel 302 has sub-pixels 302R, 302G, and 302B (Figure 1) See 4(C). In addition, sub-pixel 302R is equipped with light-emitting module 380R, sub-pixel 302 Pixel G is equipped with light-emitting module 380G, and sub-pixel 302B is equipped with light-emitting module 380B. .

[0148] For example, the sub-pixel 302R is powered by the first light-emitting element 350R and the first light-emitting element 350R. The pixel circuit includes a transistor 302t that can supply power (Figure 14(B)). (See reference). Also, the light-emitting module 380R is the first light-emitting element 350R and the optical element (for example) It comprises a first colored layer (367R).

[0149] The first light-emitting element 350R has a lower electrode 351R, an upper electrode 352, and a lower electrode 351R. The upper electrodes 352 have a layer 353 containing a luminescent organic compound between them (see Figure 14(C)). .

[0150] The layer 353 containing a luminescent organic compound includes luminescent unit 353a and luminescent unit 353b. The system also includes an intermediate layer 354 between the light-emitting unit 353a and the light-emitting unit 353b.

[0151] The light-emitting module 380R has a first colored layer 367R on the opposing substrate 370. It is sufficient if it transmits light of a specific wavelength, for example, red, green, or blue. A material that selectively transmits the light emitted can be used. Alternatively, the light emitted by the light-emitting element can be transmitted You may also include an area that remains transparent.

[0152] For example, the light-emitting module 380R consists of a first light-emitting element 350R and a first colored layer 367R It has a sealing material 360 that is in contact with the surface.

[0153] The first colored layer 367R is located in a position that overlaps with the first light-emitting element 350R. A portion of the light emitted by the light-emitting element 350R of 1 is directed to the sealing material 360, which also serves as an optical bonding layer, and the first The light passes through the colored layer 367R and, as shown by the arrow in the figure, reaches the outside of the light-emitting module 380R. It is launched.

[0154] Although an example using a light-emitting element as the display element is shown here, the present invention is also described in detail below. The embodiments are not limited to these.

[0155] For example, in this specification, etc., a display element, a display device having a display element or Light-emitting devices, which include display panels, light-emitting elements, and devices having light-emitting elements, can be used in various forms. It can have various elements, such as display elements, display devices, display panels, and light-emitting elements. Examples of elements or light-emitting devices include EL (electroluminescent) elements (organic and inorganic materials) EL elements (including organic EL elements, inorganic EL elements), LEDs (white LEDs, red LEDs, green LEDs) Color LEDs, blue LEDs, etc.), transistors (transistors that emit light according to the current), electric Micro-emission elements, liquid crystal elements, electronic inks, electrophoretic elements, grating light bulbs (GL V) Plasma displays (PDPs), MEMS (Micro-electro-mechanical Systems) Display elements using the system, digital micromirror devices (DMD), DMS ( Digital Micro Shutter), MIRASOL (registered trademark), IMOD (international) (Fairness Modulation) element, shutter-type MEMS display element, optical interferometry MEMS display elements, electrowetting elements, piezoelectric ceramic displays, It has at least one of the following: a display element using carbon nanotubes. Also, due to electrical or magnetic effects, contrast, brightness, reflectivity, transmittance, etc., can change. It may have a display medium. An example of a display device using an EL element is an EL display. Examples include sprays. An example of a display device using an electron emission element is a field emitter. Surface-type display (FED) or SED type flat-panel display (SED: Surf ce-conduction Electron-emitter Display) There are several examples. One example of a display device using liquid crystal elements is a liquid crystal display (transmissive liquid crystal display). Display, transflective liquid crystal display, reflective liquid crystal display, direct-view liquid crystal display Examples include Ray (projection liquid crystal display), electronic ink, electronic powder fluid (registered trademark), and An example of a display device using an electrophoretic element is electronic paper. When realizing a liquid crystal display or a reflective liquid crystal display, a portion of the pixel electrode, Alternatively, all of them should function as reflective electrodes. For example, one of the pixel electrodes The part or the whole may be made of aluminum, silver, etc. In this case, it is also possible to install memory circuits such as SRAM below the reflective electrode. Furthermore, it can reduce power consumption.

[0156] [Touch panel configuration] The touch panel 300 has a light-shielding layer 367BM on the opposing substrate 370. M is provided so as to surround the colored layer (for example, the first colored layer 367R).

[0157] The touch panel 300 is equipped with an anti-reflective layer 367p in a position that overlaps the display unit 301. For example, a circular polarizing plate can be used as the anti-radiation layer 367p.

[0158] The touch panel 300 includes an insulating film 321. The insulating film 321 is connected to a transistor 302t It covers the pixel circuit. The insulating film 321 is a layer for flattening the irregularities caused by the pixel circuit. It can be used in this way. In addition, it suppresses the diffusion of impurities into transistors such as transistor 302t. An insulating film having layers that can produce this can be applied to the insulating film 321.

[0159] The touch panel 300 has light-emitting elements (for example, a first light-emitting element 350R) on the insulating film 321. To possess.

[0160] The touch panel 300 has a partition wall 328 that overlaps the end of the lower electrode 351R on the insulating film 321. It has (see Figure 14(C)). In addition, the spacing between substrate 310 and opposing substrate 370 is controlled by The peser 329 is located on the bulkhead 328.

[0161] [Configuration of the image signal line driving circuit] The image signal line driving circuit 303s(1) includes a transistor 303t and a capacitor 303c. The drive circuit can be formed on the same substrate using the same process as the pixel circuit. Figure 1 As shown in 4(B), transistor 303t has a second gate on insulating film 321. It is also acceptable for the second gate to be electrically connected to the gate of transistor 303t. Furthermore, different potentials may be applied to these. Also, if necessary, a second gate This may be provided on transistor 308t, transistor 302t, etc.

[0162] [Configuration of image pixels] The imaging pixel 308 is a photoelectric conversion element 308p and light irradiated onto the photoelectric conversion element 308p. It is equipped with an imaging pixel circuit for detecting [something]. The imaging pixel circuit also includes a transistor 308t Includes.

[0163] For example, a pin-type photodiode can be used as the photoelectric conversion element 308p.

[0164] [Other configurations] The touch panel 300 is equipped with wiring 311 that can supply signals, and terminal 319 is It is provided in wiring 311. Furthermore, it is used to supply signals such as image signals and synchronization signals. The FPC309(1) is electrically connected to terminal 319.

[0165] Note that a printed circuit board (PWB) may be attached to FPC309(1). stomach.

[0166] Transistors formed in the same process are referred to as transistor 302t, transistor 303, and It can be applied to transistors such as the 308t transistor.

[0167] Transistors have structures such as bottom gate type and top gate type. An engine can be applied.

[0168] In addition to the gate, source, and drain of transistors, various components that make up a touch panel are also included. Materials that can be used for wires and electrodes include aluminum, titanium, chromium, and nickel. Kel, copper, yttrium, zirconium, molybdenum, silver, tantalum, or tungsten Metals such as cellulose, or alloys with these as the main component, are used in a single-layer or layered structure. For example, a single-layer structure of an aluminum film containing silicon, or a laminated aluminum film on a titanium film. A two-layer structure, a two-layer structure in which an aluminum film is laminated on a tungsten film, copper-magnesium Two-layer structure with a copper film laminated on an aluminum alloy film, and two-layer structure with a copper film laminated on a titanium film. Structure, a two-layer structure in which a copper film is laminated on a tungsten film, a titanium film or a titanium nitride film, and An aluminum film or copper film is laminated on top of a titanium film or titanium nitride film, and further... A three-layer structure in which a titanium film or titanium nitride film is formed on top of a molybdenum film or molybdenum nitride film. A molybdenum film, and an aluminum film or copper film superimposed on the molybdenum film or molybdenum nitride film. A three-layer structure in which a film is stacked and then a molybdenum film or molybdenum nitride film is formed on top of it, etc. There are also transparent conductive materials containing indium oxide, tin oxide, or zinc oxide. Furthermore, using copper containing manganese is preferable because it improves the controllability of the shape through etching. It seems so.

[0169] Transistors such as transistor 302t, transistor 303t, transistor 308t It is preferable to apply an oxide semiconductor to the semiconductor in which the channel is formed. In particular, silica It is preferable to use an oxide semiconductor with a larger band gap than silicon. Furthermore, if semiconductor materials with a wide band gap and low carrier density are used, transients This is preferable because it reduces the current when the sta is off.

[0170] For example, the above oxide semiconductor may contain at least indium (In) or zinc (Zn). Preferably contains ). More preferably In-M-Zn oxide (where M is Al, Ti, Contains oxides represented by metals such as Ga, Ge, Y, Zr, Sn, La, Ce, or Hf. nothing.

[0171] In particular, the semiconductor layer has multiple crystalline portions, and the c-axis of the crystalline portion is the surface on which the semiconductor layer is formed. , or oriented perpendicular to the upper surface of the semiconductor layer, and without grain boundaries between adjacent crystal portions. It is preferable to use an oxide semiconductor film.

[0172] Such oxide semiconductors do not have grain boundaries, so when the display panel is curved... This suppresses the formation of cracks in the oxide semiconductor film due to stress. Therefore, Such oxide semiconductors are suitable for use in flexible, curved display panels and the like. It is possible to be there.

[0173] By using such materials as semiconductor layers, fluctuations in electrical properties are suppressed, and reliability is improved. High transistors can be achieved.

[0174] Furthermore, its low off-current allows the charge stored in the capacitor via the transistor to be released over a long period of time. It is possible to hold it over time. By applying such transistors to pixels, each It also becomes possible to stop the drive circuit while maintaining the gradation of the image displayed in the display area. As a result, a display device with extremely reduced power consumption can be realized.

[0175] Alternatively, transistors such as transistor 302t, transistor 303t, transistor 308t, etc. It is preferable to use silicon as the semiconductor in which the channel of the lunger is formed. Amorphous silicon may be used as the silicon, but crystalline silicon is particularly preferred. Preferably, microcrystalline silicon, polycrystalline silicon, monocrystalline silicon, etc. are used. It is preferable that... In particular, polycrystalline silicon can be formed at a lower temperature than single-crystal silicon. Furthermore, it possesses higher field-effect mobility and higher reliability compared to amorphous silicon. By applying a polycrystalline semiconductor to the pixels, the aperture ratio of the pixels can be improved. Even when the pixels have the highest resolution, the gate drive circuit and source drive circuit are the same as the pixels. This makes it possible to form the components on a single substrate, thereby reducing the number of parts that make up electronic devices. ru.

[0176] Here, we will describe a method for forming a flexible light-emitting panel.

[0177] For convenience, this definition includes a configuration that includes pixels and driving circuits, or optical components such as color filters. The configuration will be called the element layer. The element layer includes, for example, a display element, and in addition to the display element, a display It includes wiring that electrically connects to the elements, and elements such as transistors used in pixels and circuits. That's good too.

[0178] In this context, the support having an insulating surface on which the element layer is formed is referred to as the substrate. Let's assume that.

[0179] A method for forming an element layer on a substrate having a flexible insulating surface is to directly place the element layer on the substrate. Methods for forming a contact element layer, and after forming an element layer on a rigid support substrate, the element layer and support There are two methods: one involves peeling the element layer off the substrate and transferring it to the substrate.

[0180] If the material constituting the base material has heat resistance to the heat generated during the device layer formation process, Forming the element layer directly on the substrate is preferable because it simplifies the process. When the element layer is formed with the element fixed to the support substrate, transport within and between devices becomes easier. It is preferable because it makes things easier.

[0181] Furthermore, when using a method in which the element layer is formed on a support substrate and then transferred to the substrate, first the support A release layer and an insulating layer are laminated onto a support base, and an element layer is formed on the insulating layer. Subsequently, a support base The material and element layer are separated and transferred to the substrate. At this time, the interface between the support substrate and the peeled layer, and the peeled layer and the insulating layer You should select a material that will cause delamination at the interface of the marginal layer or within the delamination layer.

[0182] For example, a layer containing a high-melting-point metal material such as tungsten as a release layer, and oxidation of the said metal material Layers containing materials are stacked, and multiple layers of silicon nitride or silicon oxynitride are stacked on top of the release layer. It is preferable to use a high melting point metal material. Using a high melting point metal material increases the degree of freedom in the device layer formation process. Therefore, it is desirable.

[0183] Delamination can be achieved by applying mechanical force, etching the delamination layer, or by using the delamination interface. The peeling may also be performed by dropping a liquid onto a portion of the surface and allowing it to penetrate the entire peeling interface. Alternatively, delamination may be performed by applying heat to the delamination interface, taking advantage of the difference in thermal expansion.

[0184] Furthermore, if peeling is possible at the interface between the support substrate and the insulating layer, a peeling layer may not be necessary. For example, using glass as the support substrate and an organic resin such as polyimide as the insulating layer By locally heating a portion of the organic resin using laser light or the like, a starting point for delamination is formed. Alternatively, delamination may be performed at the interface between the glass and the insulating layer. By placing a metal layer between the edge layers and passing an electric current through the metal layer to heat it, Delamination may be performed at the interface between the metal layer and the insulating layer. In this case, the insulating layer made of organic resin It can be used as a base material.

[0185] Examples of flexible substrates include polyethylene terephthalate (PET) and poly Polyester resins such as ethylene naphthalate (PEN), polyacrylonitrile resin, Liimide resin, polymethyl methacrylate resin, polycarbonate (PC) resin, polyethylene Polystyrene sulfone (PES) resin, polyamide resin, cycloolefin resin, polystyrene Examples include resins, polyamide-imide resins, and polyvinyl chloride resins. In particular, the coefficient of thermal expansion is It is preferable to use a material with a low coefficient of thermal expansion, for example, a material with a coefficient of thermal expansion of 30 × 10 -6 / K or less Polyamide-imide resins, polyimide resins, PET, etc., can be suitably used. A substrate (also called a prepreg) in which resin is impregnated into a fibrous material, or an inorganic filler mixed with organic resin. It is also possible to use a substrate with a reduced coefficient of thermal expansion.

[0186] If the above material contains fibrous material, the fibrous material is a high strength organic or inorganic compound. High-strength fibers are used. Specifically, high-strength fibers are fibers with a high tensile modulus or Young's modulus. This refers to polyvinyl alcohol-based fibers, polyester fibers, and poly- Aramid fibers, polyethylene fibers, aramid fibers, poly(p-phenylenebenzobisoxide) Examples include sazole fibers, glass fibers, or carbon fibers. Examples of glass fibers include E-glass. Examples include glass fibers using S glass, D glass, Q glass, etc. These are woven fabrics. Alternatively, it can be used in the form of a nonwoven fabric, and a structure made by impregnating this fiber with resin and hardening the resin is made flexible. It may be used as a substrate having flexibility. As a substrate having flexibility, it may be made of fibers and resin. Using structures improves reliability against damage caused by bending and localized compression, therefore it is preferable. stomach.

[0187] Furthermore, one embodiment of the present invention is an active matrix display device having active elements in its pixels. A formula or a passive matrix system in which the pixels do not have active elements can be used.

[0188] In the active matrix system, the active elements (active elements, nonlinear elements) are, In addition to transistors, various active elements (active elements, nonlinear elements) can be used. This is possible. For example, MIM (Metal Insulator Metal), or T It is also possible to use elements such as FD (Thin Film Diode). Because it involves fewer manufacturing steps, it is possible to reduce manufacturing costs or improve yield. Alternatively, these elements can improve the aperture ratio due to their small size. This allows for lower power consumption and higher brightness.

[0189] Other than the active matrix method, there are active elements (active elements, nonlinear elements) It is also possible to use a passive matrix type that does not use active elements. Because it does not use sub-elements or nonlinear elements, the manufacturing process is simpler, resulting in reduced manufacturing costs or higher yield. This can improve the performance. Alternatively, active elements (active elements, nonlinear elements) can be used. Because it does not exist, the aperture ratio can be improved, leading to lower power consumption or higher brightness. It is possible.

[0190] In this document, we have shown examples of various displays using a display device, but the present invention The embodiment is not limited to this. For example, information may be omitted. Therefore, it may be used as a lighting device instead of a display device. By applying it to a lighting device... It can be used as an interior design element with excellent aesthetics. Alternatively, it can be used in various ways. It can be used as a light source that can illuminate [something]. Or, instead of a display device, It can also be used as a light source such as a backlight or frontlight. In other words, for a display panel It can also be used as a lighting device.

[0191] In particular, the present invention applies to home television equipment, digital signage, or PID. When using one embodiment of a display device, a touch panel is applied to the display panel in this manner. This allows not only images and videos to be displayed in the display area, but also enables the observer to operate it intuitively. This is desirable because it allows for greater effectiveness. Furthermore, for example, when used for advertising purposes, it enhances the advertising effect. To be effective. Also, when used for purposes such as providing route information and traffic information. This allows for improved usability through intuitive operation.

[0192] Furthermore, it can be used for large advertisements installed on the walls of buildings and public facilities, etc., with touch sensors and If you do not need the above functionality, use the touch panel configuration example shown above. You can omit the sensor configuration and just configure the display panel.

[0193] (Embodiment 3) In this embodiment, the drawings show a display panel applicable to a display device according to one aspect of the present invention. I will explain by referring to it.

[0194] Here, as an example of a display panel, we will use a touch panel that also functions as a touch sensor. I will explain about that.

[0195] Figure 15 is a cross-sectional view of the touch panel 500.

[0196] The touch panel 500 includes a display unit 501 and a touch sensor 595. The Nel 500 has substrates 510, 570 and 590. Note that substrate 510, Both substrate 570 and substrate 590 are flexible.

[0197] The display unit 501 consists of a substrate 510, a plurality of pixels on the substrate 510, and a signal supply to those pixels. It has multiple wirings 511 that can be connected. The multiple wirings 511 are located on the outer periphery of the substrate 510. It is routed all the way to the terminal 519, and a part of it makes up terminal 519. Terminal 519 is FPC509( 1) Connect electrically to it.

[0198] [Touch sensor] The circuit board 590 includes a touch sensor 595 and multiple connections electrically connected to the touch sensor 595. It is equipped with wiring 598. Multiple wirings 598 are routed around the outer periphery of the circuit board 590, and part of them This constitutes a terminal. This terminal is then electrically connected to FPC509(2).

[0199] For example, a capacitive touch sensor can be used as the touch sensor 595. Quantitative methods include surface capacitance and projected capacitance.

[0200] Projected capacitance systems are classified into self-capacitance and mutual-capacitance types, mainly based on differences in their driving methods. There are several advantages. Using a mutual capacitance method is preferable because it enables simultaneous multi-point detection.

[0201] The following section describes the case where a projected capacitive touch sensor is applied.

[0202] Note that the configuration of the touch sensor is not limited to the above, and it can detect proximity or contact with an object such as a finger. A variety of sensors can be applied.

[0203] The projected capacitive touch sensor 595 has electrodes 591 and 592. 591 is electrically connected to one of the multiple wires 598, and electrode 592 is connected to one of the multiple wires 598 Connect electrically to any of the others.

[0204] The wiring 594 electrically connects the two electrodes 591 that sandwich electrode 592. A shape that minimizes the area of ​​the intersection between pole 592 and wiring 594 is preferable. This reduces the area where electrodes are not provided, thereby reducing unevenness in transmittance. As a result, it is possible to reduce the brightness unevenness of the light transmitted through the touch sensor 595.

[0205] Note that the shapes of electrodes 591 and 592 can take on various forms. For example, multiple electrodes 5 Arrange 91 so that there are as few gaps as possible, and connect electrode 592 and electrode 59 through the insulating layer. It is also possible to configure multiple units spaced apart so that there are areas that do not overlap with unit 1. If a dummy electrode, electrically insulated from the two contacting electrodes 592, is placed between them, This is preferable because it reduces the area of ​​regions with different transmittances.

[0206] The touch sensor 595 includes a substrate 590, electrodes 591 arranged in a staggered pattern on the substrate 590, and electrode 592, electrode 591 and the insulating layer 593 covering electrode 592 and adjacent electrode 591 It is equipped with wiring 594 for electrical connection.

[0207] The adhesive layer 597 is applied to the substrate 590 so that the touch sensor 595 overlaps the display unit 501. It is bonded to board 570.

[0208] Electrodes 591 and 592 are formed using a light-transmitting conductive material. Examples of conductive materials include indium oxide, indium tin oxide, and indium zinc oxide. Conductive oxides such as zinc oxide, zinc oxide with added gallium, or graphene are used. It is possible.

[0209] After depositing a translucent conductive material onto the substrate 590 by sputtering, Various patterning techniques, such as trisography, are used to remove unwanted parts, and electrode 59 Electrode 1 and electrode 592 can be formed. Graphene can be produced by CVD, as well as by graphite oxide The material may be formed by applying a solution containing dispersed particles and then reducing it.

[0210] Furthermore, the materials used for the insulating layer 593 include, for example, resins such as acrylic and epoxy. In addition to resins containing siloxane bonds, silicon oxide, silicon oxide nitride, and aluminum oxide are also used. Inorganic insulating materials such as those mentioned above can also be used.

[0211] Furthermore, an opening reaching electrode 591 is provided in the insulating layer 593, and wiring 594 is adjacent to the electrode. 591 is electrically connected. Translucent conductive material increases the aperture ratio of the touch panel. Therefore, it can be suitably used for wiring 594. Also, electrodes 591 and 59 Materials with higher conductivity than 2 can reduce electrical resistance and are therefore suitable for use in wiring 594. can.

[0212] One electrode 592 extends in one direction, and multiple electrodes 592 are arranged in a stripe pattern. .

[0213] Wiring 594 is provided so as to intersect with electrode 592.

[0214] A pair of electrodes 591 are provided flanking one electrode 592, and the wiring 594 is connected to the pair of electrodes 591 They are electrically connected.

[0215] Furthermore, the multiple electrodes 591 do not necessarily need to be arranged in a direction perpendicular to one electrode 592. Alternatively, they may be arranged to form an angle of less than 90 degrees.

[0216] One of the wires 598 is electrically connected to electrode 591 or electrode 592. The part functions as a terminal. Wiring 598 can be, for example, aluminum, gold, platinum, or silver. Nickel, titanium, tungsten, chromium, molybdenum, iron, cobalt, copper, or paraben. Metallic materials such as zinc, or alloy materials containing such metallic materials, can be used.

[0217] Furthermore, an insulating layer is provided to cover the insulating layer 593 and the wiring 594 to protect the touch sensor 595. It is possible.

[0218] Furthermore, the connection layer 599 electrically connects the wiring 598 and the FPC 509(2).

[0219] The connecting layer 599 is an anisotropic conductive film (ACF: Anisotropic Co (Inductive Film) and anisotropic conductive paste (ACP: Anisotropic You can use things like (c) Conductive Paste.

[0220] The adhesive layer 597 is translucent. For example, thermosetting resins or UV-curing resins can be used. This can be done, specifically by having acrylic, urethane, epoxy, or siloxane bonds. Resins such as plastics can be used.

[0221] Furthermore, FPC509(2) and the light-shielding wiring electrically connected to it are as described above. It should be placed in a position that does not overlap with the visible light-transmitting region 110.

[0222] [Display] The display unit 501 comprises multiple pixels arranged in a matrix. The pixels are display elements and It includes a pixel circuit that drives the display element.

[0223] In this embodiment, a white organic electroluminescent element is applied as a display element. I will explain the combination, but the display elements are not limited to these.

[0224] For example, as display elements, in addition to organic electroluminescent elements, electrophoretic methods and electro Display elements (also called electronic ink) that display information using methods such as the powder fluid (registered trademark) method, and Various display elements, such as MEMS display elements using the tertiary method and MEMS display elements using the optical interference method. This can be used. Furthermore, a suitable configuration for the display element to be applied can be selected from various pixel circuits. It can be used in this way.

[0225] The substrate 510 is a flexible substrate 510b, and a barrier is provided to prevent the diffusion of impurities to the light-emitting element. The film 510a and the substrate 510b are bonded together by an adhesive layer 510c. It is a laminated structure.

[0226] The substrate 570 is a flexible substrate 570b, and a barrier is provided to prevent the diffusion of impurities to the light-emitting element. Lamination of the film 570a and the substrate 570b and the adhesive layer 570c that bonds the barrier film 570a. It is the body.

[0227] The sealing material 560 bonds the substrate 570 and the substrate 510 together. The sealing material 560 is more airborne than... It has a high refractive index. Also, when light is extracted to the sealing material 560 side, the sealing material 560 is light It also serves as a junction layer. The pixel circuit and light-emitting element (e.g., the first light-emitting element 550R) are on substrate 5 It is located between 10 and circuit board 570.

[0228] [Pixel composition] Each pixel includes a sub-pixel 502R, which in turn includes a light-emitting module 580R.

[0229] The sub-pixel 502R supplies power to the first light-emitting element 550R and the first light-emitting element 550R. It includes a pixel circuit containing a transistor 502t that can supply power. It also includes a light-emitting module. R580R is a first light-emitting element 550R and an optical element (e.g., a first colored layer 567R) Prepare.

[0230] The first light-emitting element 550R has a lower electrode, an upper electrode, and a light-emitting element between the lower electrode and the upper electrode. It has a layer containing organic compounds.

[0231] The light-emitting module 580R has a first colored layer 567R in the direction from which light is extracted. The layer only needs to transmit light of a specific wavelength, such as red, green, or blue. A material that selectively transmits light exhibiting this characteristic can be used. Furthermore, in other sub-pixels, A region that allows the light emitted by the light-emitting element to pass through directly may be provided.

[0232] Furthermore, if the sealing material 560 is provided on the side from which light is extracted, the sealing material 560 is the first The light-emitting element 550R is in contact with the first colored layer 567R.

[0233] The first colored layer 567R is located in a position that overlaps with the first light-emitting element 550R. A portion of the light emitted by the light-emitting element 550R of 1 passes through the first colored layer 567R, as shown in the figure. The light is emitted to the outside of the 580R light-emitting module in the direction of the arrow.

[0234] [Display Unit Configuration] The display unit 501 has a light-shielding layer 567BM in the direction from which light is emitted. It is provided so as to surround the colored layer (for example, the first colored layer 567R).

[0235] The display unit 501 is provided with an anti-reflective layer 567p in a position that overlaps the pixels. For p, for example, a circular polarizer can be used.

[0236] The display unit 501 includes an insulating film 521. The insulating film 521 covers the transistor 502t. Furthermore, the insulating film 521 is used as a layer to flatten the irregularities caused by the pixel circuit. Furthermore, a laminated film containing a layer that can suppress the diffusion of impurities can be suitable for the insulating film 521. It can be used. This improves the reliability of transistors such as the 502t due to impurity diffusion. This can suppress the decline.

[0237] The display unit 501 has a light-emitting element (for example, a first light-emitting element 550R) on the insulating film 521. ru.

[0238] The display unit 501 has a partition wall 528 on the insulating film 521 that overlaps the end of the lower electrode. A spacer is provided on the partition wall 528 to control the distance between substrate 510 and substrate 570.

[0239] [Configuration of the scan line drive circuit] The scan line driver circuit 503g(1) includes a transistor 503t and a capacitor 503c. Furthermore, the drive circuit can be formed on the same substrate using the same process as the pixel circuit.

[0240] [Other configurations] The display unit 501 is equipped with wiring 511 that can supply signals, and terminal 519 is connected to wiring 5 It is located at 11. It can also supply signals such as image signals and synchronization signals. FPC509(1) is electrically connected to terminal 519.

[0241] Note that a printed circuit board (PWB) may be attached to FPC509(1). stomach.

[0242] [Diagram of the display unit] Various transistors can be applied to the display unit 501.

[0243] Figure 15(A) shows the configuration when a bottom-gate type transistor is applied to the display unit 501. This is illustrated in Figure 15(B).

[0244] For example, a semiconductor layer containing oxide semiconductors, amorphous silicon, etc. is shown in Figure 15(A). This can be applied to the transistors 502t and 503t shown.

[0245] For example, a semiconductor layer containing polycrystalline silicon, etc., is used in the transistor 5 shown in Figure 15(B). It can be applied to the 02t and transistor 503t.

[0246] Figure 15(C) shows the configuration when a top-gate type transistor is applied to the display unit 501. This is illustrated in the diagram.

[0247] For example, a semiconductor including oxide semiconductors, polycrystalline silicon, or a transferred single-crystal silicon film. The conductive layer is connected to transistors 502t and 503t as shown in Figure 15(C). It can be applied.

[0248] This embodiment may be appropriately combined with other embodiments described herein, at least in part. They can be implemented in combination.

[0249] (Embodiment 4) In this embodiment, the drawings show a display panel applicable to a display device according to one aspect of the present invention. Refer to the explanation. Here, as an example of a display panel, it has the functionality of a touch sensor. Let me explain the touch panel.

[0250] Figure 16 is a cross-sectional view of the touch panel 500B.

[0251] The touch panel 500B described in this embodiment processes the supplied image information into transistors The display unit 501 is provided on the side where the display unit is located, and the touch sensor is located at the base of the display unit. The fact that it is located on the board 510 side is different from the touch panel 500 described in Embodiment 3. Here, we will explain in detail the different configurations and the parts where similar configurations can be used. The above explanation is used as a reference.

[0252] [Display] The display unit 501 comprises multiple pixels arranged in a matrix. The pixels are display elements and It includes a pixel circuit that drives the display element.

[0253] [Pixel composition] Each pixel includes a sub-pixel 502R, which in turn includes a light-emitting module 580R.

[0254] The sub-pixel 502R supplies power to the first light-emitting element 550R and the first light-emitting element 550R. It includes a pixel circuit that contains a transistor 502t that can supply power.

[0255] The light-emitting module 580R consists of a first light-emitting element 550R and an optical element (e.g., a first colored element) It includes layer 567R).

[0256] The first light-emitting element 550R has a lower electrode, an upper electrode, and a light-emitting element between the lower electrode and the upper electrode. It has a layer containing organic compounds.

[0257] The light-emitting module 580R has a first colored layer 567R in the direction from which light is extracted. The layer only needs to transmit light of a specific wavelength, such as red, green, or blue. A material that selectively transmits light exhibiting this characteristic can be used. Furthermore, in other sub-pixels, A region that allows the light emitted by the light-emitting element to pass through directly may be provided.

[0258] The first colored layer 567R is located in a position that overlaps with the first light-emitting element 550R. Also, Figure 16( The first light-emitting element 550R shown in A) emits light on the side where the transistor 502t is located. It is emitted. As a result, a portion of the light emitted by the first light-emitting element 550R is directed to the first colored layer 567 The light passes through R and is emitted outside the light-emitting module 580R in the direction of the arrow shown in the diagram.

[0259] [Display Unit Configuration] The display unit 501 has a light-shielding layer 567BM in the direction from which light is emitted. It is provided so as to surround the colored layer (for example, the first colored layer 567R).

[0260] The display unit 501 includes an insulating film 521. The insulating film 521 covers the transistor 502t. Furthermore, the insulating film 521 is used as a layer to flatten the irregularities caused by the pixel circuit. Furthermore, a laminated film containing a layer that can suppress the diffusion of impurities can be suitable for the insulating film 521. This can be used to prevent, for example, interference caused by impurities diffusing from the colored layer 567R. This can suppress the decline in reliability of devices such as the 502t.

[0261] [Touch sensor] The touch sensor 595 is located on the circuit board 510 side of the display unit 501 (Figure 16(A)). reference).

[0262] The adhesive layer 597 is located between the substrate 510 and the substrate 590, and connects the display unit 501 and the touch sensor 5 Glue together 95.

[0263] Furthermore, FPC509(2) and the light-shielding wiring electrically connected to it are as described above. It should be placed in a position that does not overlap with the visible light-transmitting region 110.

[0264] [Diagram of the display unit] Various transistors can be applied to the display unit 501.

[0265] Figure 16(A) shows the configuration when a bottom-gate type transistor is applied to the display unit 501. This is illustrated in Figure 16(B).

[0266] For example, a semiconductor layer containing oxide semiconductors, amorphous silicon, etc. is shown in Figure 16(A). This can be applied to the transistors 502t and 503t shown.

[0267] For example, a semiconductor layer containing polycrystalline silicon, etc., is used in the transistor 5 shown in Figure 16(B). It can be applied to the 02t and transistor 503t.

[0268] Figure 16(C) shows the configuration when a top-gate type transistor is applied to the display unit 501. This is illustrated in the diagram.

[0269] For example, a semiconductor including oxide semiconductors, polycrystalline silicon, or a transferred single-crystal silicon film. The conductive layer is connected to transistors 502t and 503t as shown in Figure 16(C). It can be applied.

[0270] This embodiment may be appropriately combined with other embodiments described herein, at least in part. They can be implemented in combination.

[0271] (Embodiment 5) In this embodiment, the configuration of an input / output device according to one aspect of the present invention is shown in Figures 17 and 18. I will explain while referring to this.

[0272] Figure 17 is a projection diagram illustrating the configuration of an input / output device according to one embodiment of the present invention.

[0273] Figure 17(A) is a projection view of an input / output device 600 according to one embodiment of the present invention, and Figure 17(B) is an input This is a projection diagram illustrating the configuration of the detection unit 60U provided by the output device 600.

[0274] Figure 18 is a cross-sectional view illustrating the configuration of an input / output device 600 according to one embodiment of the present invention.

[0275] Figure 18 is a cross-sectional view of the input / output device 600 according to one embodiment of the present invention shown in Figure 17, at the Z1-Z2 point. That is the case.

[0276] The input / output device 600 can also be described as a touch panel.

[0277] [Example of an input / output device configuration] The input / output device 600 described in this embodiment is equipped with a window portion 64 that transmits visible light and Multiple detection units 60U are arranged in a matrix, in the row direction (indicated by arrow R in the figure) Multiple detection units 60U are arranged and electrically connected to scan lines G1, in the column direction (arrows in the figure). If the signal line DL is electrically connected to the multiple detection units 60U located at (indicated by mark C), In addition, a flexible first substrate supports the detection unit 60U, scan line G1, and signal line DL. A flexible input device 620 equipped with 66, and arranged in a matrix that overlaps the window portion 64 A display comprising a plurality of pixels 602 and a flexible second substrate 610 supporting the pixels 602. It has part 601 and (see Figures 17(A) to 17(C)).

[0278] The detection unit 60U is electrically connected to the detection element C that overlaps the window portion 64 and to the detection element C. It is equipped with a detection circuit 69 (see Figure 17(B)).

[0279] The sensing element C comprises an insulating layer 63, a first electrode 61 and a second electrode 6 that sandwich the insulating layer 63. It includes 2 (see Figure 18).

[0280] The detection circuit 69 is supplied with a selection signal and detects a change in the capacitance of the detection element C. To supply data.

[0281] Scan line G1 can supply the selection signal, and signal line DL can supply the detection signal DATA. The detection circuit 69 is positioned to overlap the gaps between the multiple window sections 64.

[0282] Furthermore, the input / output device 600 described in this embodiment includes a detection unit 60U and a detection unit A colored layer is provided between the window portion 64 of the knit 60U and the pixel 602 that overlaps with it.

[0283] The input / output device 600 described in this embodiment is equipped with a window portion 64 that transmits visible light. A flexible input device 620 equipped with multiple intelligence units 60U, and pixels 602 overlapping the window portion 64. It has a flexible display section 601 comprising multiple such sections, and includes a colored layer between the window section 64 and the pixels 602. It is composed of n.

[0284] As a result, the input / output device receives a detection signal based on the change in capacitance, and the detection device that supplies it. To supply the location information of the unit, and the image information associated with the location information of the detection unit. It can display and be bent. As a result, it offers superior convenience or reliability. This allows us to provide novel input / output devices.

[0285] Furthermore, the input / output device 600 is supplied with a flexible cable that receives signals from the input device 620. A flexible circuit board FPC1 and / or a signal including image information that supplies signals to the display unit 601. It may also include a FPC2 substrate.

[0286] Furthermore, a protective layer 67p or / or the input / output device 600 protects the input / output device from damage. The force device 600 may be equipped with an anti-reflective layer 667p that reduces the intensity of ambient light reflected by it.

[0287] Furthermore, the input / output device 600 supplies selection signals to the scan lines of the display unit 601 via a scan line drive circuit. Circuit 603g, signal-supplying wiring 611, and the flexible circuit board FPC2 are electrically connected. It has terminals 619 that are used.

[0288] The individual elements that make up the input / output device 600 are described below. The components cannot be clearly separated, and one component may also serve as part of another component or include a part of another component. There is.

[0289] For example, an input device 620 that has a colored layer in a position that overlaps with multiple window sections 64 is an input device 6 It is both a value of 20 and a color filter.

[0290] Furthermore, for example, an input / output device 600 in which an input device 620 is superimposed on a display unit 601, It is both the base unit 620 and the display unit 601.

[0291] 《Overall Structure》 The input / output device 600 includes an input device 620 and a display unit 601 (see Figure 17(A)). see).

[0292] Input device 620 The input device 620 includes multiple detection units 60U and a flexible base that supports the detection units. It is equipped with material 66. For example, multiple detection units 60U can be arranged in a matrix of 40 rows and 15 columns. It is installed on a flexible base material 66.

[0293] 《Window section 64, colored layer and light-blocking layer BM》 The window section 64 transmits visible light.

[0294] A colored layer that transmits light of a predetermined color is provided at a position overlapping the window portion 64. For example, blue light Transmissive colored layer CFB, colored layer CFG that transmits green light, or colored layer that transmits red light It features layered CFRs (see Figure 17(B)).

[0295] In addition to blue, green, and / or red, there is also a colored layer that transmits white light or yellow light. It can be equipped with a colored layer that transmits light of various colors, such as a colored layer that transmits light of a certain color.

[0296] Metal materials, pigments, or dyes can be used in the colored layer.

[0297] A light-blocking layer BM is provided to surround the window portion 64. The light-blocking layer BM allows light to pass through the window portion 64. It's difficult to get by.

[0298] Carbon black, metal oxides, and composite oxides containing solid solutions of multiple metal oxides are used for light shielding. It can be used in the sexual layer BM.

[0299] Scan line G1, signal line DL, wiring VPI, wiring RES are located in positions that overlap with the light-shielding layer BM. It is equipped with wiring VRES and a detection circuit 69.

[0300] Furthermore, a translucent overcoat layer can be provided to cover the colored layer and the light-shielding layer BM. Cut.

[0301] 《Detection element C》 The detection element C includes a first electrode 61, a second electrode 62, and the first electrode 61 and the second electrode 6 An insulating layer 63 is provided between the two (see Figure 18).

[0302] The first electrode 61 is formed, for example, in an island shape, so as to be separated from other regions. To prevent the user of the output device 600 from identifying the first electrode 61, the first electrode 61 is identical to the first electrode 61. A configuration is preferred in which the layer that can be produced in the process is placed in close proximity to the first electrode 61. More preferably, the first electrode 61 and the gap between the layers located adjacent to the first electrode 61 are disposed It is best to minimize the number of window sections 64 to be placed. In particular, when placing window sections 64 in the gap A configuration without this is preferable.

[0303] The device is equipped with a second electrode 62 that overlaps with the first electrode 61, and the first electrode 61 and the second electrode 6 An insulating layer 63 is provided between the two.

[0304] For example, the first electrode 61 or the second electrode 62 of the sensing element C placed in the atmosphere When an object with a different dielectric constant approaches, the capacitance of the sensing element C changes. Specifically, When objects such as approach the sensing element C, the capacitance of the sensing element C changes. As a result, the sensing element Child C can be used as a proximity detector.

[0305] For example, the capacitance of a deformable sensing element C changes with deformation.

[0306] Specifically, when something such as a finger touches the detection element C, the first electrode 61 and the second electrode As the spacing between electrodes 62 narrows, the capacitance of the sensing element C increases. This can be used in a contact detector.

[0307] Specifically, by bending the detection element C, the first electrode 61 and the second electrode 62 The spacing becomes narrower. As a result, the capacitance of the sensing element C increases. This can be used as a bending detector.

[0308] The first electrode 61 and the second electrode 62 include a conductive material.

[0309] For example, inorganic conductive materials, organic conductive materials, metals or conductive ceramics, etc. It can be used for the electrode 61 and the second electrode 62.

[0310] Specifically, aluminum, chromium, copper, tantalum, titanium, molybdenum, tungsten Metal elements selected from chromium, nickel, silver, or manganese, or the above-mentioned metal elements as components. Alloys or alloys combining the aforementioned metallic elements can be used.

[0311] Alternatively, indium oxide, indium tin oxide, indium zinc oxide, zinc oxide, Conductive oxides such as zinc oxide with added zinc sulfate can be used.

[0312] Alternatively, graphene or graphite can be used. A film containing graphene is For example, it can be formed by reducing a film containing graphene oxide that has been formed in a film-like state. Methods for regenerating the substance include applying heat or using a reducing agent.

[0313] Alternatively, conductive polymers can be used.

[0314] Detection circuit 69 The detection circuit 69 includes, for example, transistors M1 to M3. 69 includes wiring that supplies power potential and signals. For example, signal line DL, wiring VPI, distribution This includes line CS, scan line G1, wiring RES, and wiring VRES, etc. Note: Detection circuit 69 The specific configuration will be described in detail in Embodiment 6.

[0315] The detection circuit 69 may be placed in an area that does not overlap with the window portion 64. For example, the window portion 64 By arranging the wiring in an area that does not overlap, it is possible to move from one side of the detection unit 60U to the other side. It makes it easier to see things that are on the side.

[0316] For example, transistors that can be formed in the same process are transistors M1 to transistors It can be used with the M3.

[0317] Transistor M1 has a semiconductor layer. For example, a group 4 element, a compound semiconductor, or an oxide A semiconductor material can be used in the semiconductor layer. Specifically, a semiconductor containing silicon, galvanic Semiconductors containing muhidin or oxide semiconductors containing indium can be applied.

[0318] Furthermore, in Embodiment 6, the configuration of a transistor in which an oxide semiconductor is applied to the semiconductor layer is described as follows: I will explain in detail.

[0319] Conductive materials can be applied to wiring.

[0320] For example, inorganic conductive materials, organic conductive materials, metals, or conductive ceramics are used for wiring. It can be used for the first electrode 61 and the second electrode 62. The same materials used for this can be applied.

[0321] Aluminum, gold, platinum, silver, nickel, titanium, tungsten, chromium, molybdenum Scanning metallic materials such as iron, cobalt, copper, or palladium, or alloy materials containing such metallic materials. It can be used for line G1, signal line DL, wiring VPI, wiring RES, and wiring VRES. .

[0322] The film formed on the substrate 66 may be processed to form a detection circuit 69 on the substrate 66.

[0323] Alternatively, the detection circuit 69 formed on another substrate may be transferred to the substrate 66.

[0324] The method for fabricating the detection circuit will be described in detail in Embodiment 6.

[0325] 《Base material 66》 Organic materials, inorganic materials, or composite materials of organic and inorganic materials are used as the flexible base material 66. It is possible.

[0326] 5 μm to 2500 μm, preferably 5 μm to 680 μm, more preferably 5 μm to 170 μm, more preferably 5 μm to 45 μm, more preferably 8 A material having a thickness of 25 μm or more can be used as the base material 66.

[0327] Furthermore, a material in which the permeation of impurities is suppressed can be suitably used as the substrate 66. For example , the water vapor transmission rate is 10 -5 g / m 2 • less than or equal to 10 days, preferably 10 -6 g / m 2 ·da Materials with a value of y or less can be suitably used.

[0328] Furthermore, materials with approximately equal coefficients of thermal expansion are suitably used for each material constituting the base material 66. This is possible. For example, the coefficient of thermal expansion is 1 × 10⁻⁶. -3 / K or less, preferably 5 × 10 -5 / K or less, more preferably 1 × 10 -5 Materials with a temperature of / K or lower can be suitably used.

[0329] For example, an organic material such as resin, resin film, or plastic film is applied to the base material 66. It can be used.

[0330] For example, inorganic materials such as metal plates or thin glass plates with a thickness of 10 μm to 50 μm. This can be used as the base material 66.

[0331] For example, a metal plate, a thin glass plate, or a film of an inorganic material can be resin-filled using a resin layer. A composite material formed by bonding to a substrate such as a lumen can be used as the base material 66.

[0332] For example, fibrous or particulate metal, glass, or inorganic material is used in resin or resin fill A composite material dispersed in a material can be used as the base material 66.

[0333] For example, thermosetting resins or UV-curing resins can be used in the resin layer.

[0334] Specifically, polyester, polyolefin, polyamide, polyimide, polycarbonate A resin film or resin plate such as acrylic resin can be used.

[0335] Specifically, alkali-free glass, soda-lime glass, potash glass, or crystal glass Laths and the like can be used.

[0336] Specifically, metal oxide films, metal nitride films, or metal oxynitride films can be used. Yes, it can be applied. For example, silicon oxide films, silicon nitride films, silicon oxynitride films, alumina films, etc.

[0337] Specifically, stainless steel or aluminum with openings can be used.

[0338] Specifically, acrylic, urethane, epoxy, or resins containing siloxane bonds, etc. The following resin can be used.

[0339] For example, a flexible substrate 66b, a barrier film 66a that prevents the diffusion of impurities, and a substrate 6 A resin layer 66c that bonds 6b and the barrier film 66a is laminated to a base material 6 It can be suitably used in 6 (see Figure 18).

[0340] Specifically, a silicon oxide nitride film with a thickness of 600 nm and a silicon nitride film with a thickness of 200 nm are stacked. A film containing layered laminated materials can be used as the barrier film 66a.

[0341] Specifically, a silicon oxide nitride film with a thickness of 600 nm, a silicon nitride film with a thickness of 200 nm, and a 2 00nm silicon oxide nitride film, 140nm thick silicon oxide nitride film and 100nm thick acid A film containing a laminated material in which silicon nitride films are stacked in this order can be used as the barrier film 66a. can.

[0342] Polyester, polyolefin, polyamide, polyimide, polycarbonate or A resin film such as acrylic resin, a resin plate, or a laminate containing two or more of these, etc., as the base material 66b It can be used for this purpose.

[0343] For example, polyester, polyolefin, polyamide (nylon, aramid, etc.), poly Imide, polycarbonate or acrylic, urethane, epoxy or siloxane bond A material containing a resin having the properties can be used in the resin layer 66c.

[0344] 《Protective base material 67, protective layer 67p》 It may include a flexible protective base material 67 and / or a protective layer 67p. The protective base material 67 or protective layer 67p protects the input device 620 by preventing scratches.

[0345] For example, polyester, polyolefin, polyamide, polyimide, polycarbonate Alternatively, a resin film, resin plate, or laminate such as acrylic resin may be used as the protective substrate 67. It is possible.

[0346] For example, a hard coat layer or a ceramic coat layer can be used for the protective layer 67p. Specifically, a layer containing UV-curing resin or aluminum oxide is placed on top of the second electrode. It may be formed in place.

[0347] 《Display section 601》 The display unit 601 includes a plurality of pixels 602 arranged in a matrix (Figure 17(C)). reference).

[0348] For example, pixel 602 includes sub-pixels 602B, 602G, and 602R. Each sub-pixel is equipped with a display element and a pixel circuit that drives the display element.

[0349] Furthermore, the sub-pixel 602B of pixel 602 is positioned to overlap with the colored layer CFB, and sub-pixel 6 02G is positioned to overlap with the colored layer CFG, and sub-pixel 602R overlaps with the colored layer CFR. It is positioned.

[0350] In this embodiment, an organic electroluminescent element that emits white light is used as a display element. The following explanation will describe its application to [specific context], but the display elements are not limited to this.

[0351] For example, organic electrons with different emission colors, such as those that emit light of different colors from each subpixel. Minescence elements may be applied to each sub-pixel.

[0352] 《Base material 610》 A flexible material can be used for the base material 610. For example, if used for the base material 66... Materials that can do this can be applied to the base material 610.

[0353] For example, a flexible substrate 610b, a barrier film 610a that prevents the diffusion of impurities, and A laminate is formed by laminating a resin layer 610c which bonds material 610b and barrier film 610a. The body can be suitably used on the base material 610 (see Figure 18).

[0354] 《Sealing material 660》 The sealing material 660 bonds the base material 66 and the base material 610 together. The sealing material 660 is larger than the air. It has a refractive index. Also, when light is extracted to the sealing material 660 side, the sealing material 660 is an optical junction. It serves multiple purposes.

[0355] The pixel circuit and light-emitting element (e.g., light-emitting element 650R) are located between substrate 610 and substrate 66. ru.

[0356] Pixel composition The sub-pixel 602R is equipped with a light-emitting module 680R.

[0357] Sub-pixel 602R can supply power to light-emitting element 650R and light-emitting element 650R. It features a pixel circuit including a transistor 602t. Also, the light-emitting module 680R is It comprises a light-emitting element 650R and an optical element (e.g., a colored layer CFR).

[0358] The light-emitting element 650R consists of a lower electrode, an upper electrode, and a light-emitting organic material between the lower electrode and the upper electrode. It has a layer containing a compound.

[0359] The light-emitting module 680R has a colored layer CFR in the direction from which light is extracted. Any material that transmits light having a certain wavelength is acceptable, for example, one that exhibits red, green, or blue light. A material that selectively transmits light can be used. Furthermore, other subpixels may be provided with a coloring layer. It is positioned so as to overlap the window area that is not visible, and the light emitted by the light-emitting element is emitted without passing through the colored layer. You may allow it.

[0360] Furthermore, if the sealing material 660 is provided on the side from which light is extracted, the sealing material 660 is a light-emitting element Child 650R is in contact with the colored layer CFR.

[0361] The colored layer CFR is located in a position that overlaps with the light-emitting element 650R. A portion of the light emitted by passes through the colored layer CFR and into the light-emitting module 6 in the direction of the arrow shown in the figure. It is ejected to the outside of 80R.

[0362] A light-shielding layer BM surrounds the colored layer (for example, the colored layer CFR).

[0363] Pixel circuit configuration The pixel circuit includes an insulating film 621 that covers the transistor 602t. It can be used as a layer to flatten the irregularities caused by the pixel circuit. A laminated film containing a layer that can suppress the diffusion of substances can be applied to the insulating film 621. This further suppresses the decrease in reliability of transistors such as the 602t due to the diffusion of impurities.

[0364] The lower electrode is placed on the insulating film 621, and the partition wall 628 overlaps the end of the lower electrode. It is placed on top of the insulating film 621.

[0365] The lower electrode has a layer containing a light-emitting organic compound sandwiched between it and the upper electrode to create a light-emitting element (for example) The light-emitting element (650R) is formed by the pixel circuit. The pixel circuit supplies power to the light-emitting element.

[0366] Furthermore, the partition wall 628 has a spacer that controls the distance between the base material 66 and the base material 610.

[0367] 《Configuration of the scan line drive circuit》 The scan line drive circuit 603g(1) includes a transistor 603t and a capacitor 603c. Furthermore, transistors that can be formed on the same substrate using the same process as the pixel circuit are used as drive circuits. It can be used for roads.

[0368] 《CONV Converter》 The detection signal DATA supplied by the detection unit 60U is converted and supplied to the FPC1. Various circuits can be used in the converter CONV (Figures 17(A) and 17(A) and 17(A) (See 18).

[0369] For example, transistor M4 can be used in the converter CONV.

[0370] Other configurations The display unit 601 is provided with an anti-reflective layer 667p in a position that overlaps the pixels. For p, for example, a circular polarizer can be used.

[0371] The display unit 601 is equipped with wiring 611 that can supply signals, and terminal 619 is connected to wiring 6 It is located at 11. It can also supply signals such as image signals and synchronization signals. The flexible circuit board FPC2 is electrically connected to terminal 619.

[0372] Note that a printed circuit board (PWB) is attached to the flexible circuit board FPC2. You can.

[0373] The display unit 601 has wiring such as scan lines, signal lines, and power lines. Various conductive films are used for wiring. It can be used for this purpose.

[0374] Specifically, aluminum, chromium, copper, tantalum, titanium, molybdenum, tungsten A metallic element selected from nickel, yttrium, zirconium, silver, or manganese. Using alloys containing the above-mentioned metal elements or alloys combining the above-mentioned metal elements It is possible. In particular, aluminum, chromium, copper, tantalum, titanium, molybdenum, Preferably, it contains one or more elements selected from tungsten. In particular, copper and manganese The alloy is suitable for microfabrication using the wet etching method.

[0375] Specifically, a two-layer structure in which a titanium film is laminated on an aluminum film, and a titanium film on a titanium nitride film A two-layer structure in which a tungsten film is stacked on top of a titanium nitride film, a two-layer structure in which a tungsten film is stacked on top of a titanium nitride film, A two-layer structure in which a tungsten film is laminated on a tungsten film or a tungsten nitride film, and a titanium film and A three-layer structure is formed by laminating an aluminum film on top of the titanium film, and then forming another titanium film on top of that. Construction and other similar methods can be used.

[0376] Specifically, titanium, tantalum, tungsten, molybdenum, and chromium are layered on an aluminum film. A film of metal selected from chromium, neodymium, scandium, or multiple golds selected from these. A laminated structure comprising an alloy film containing a metal, or a film containing a nitride of a metal selected from these. You can use it.

[0377] Furthermore, using a light-transmitting conductive material containing indium oxide, tin oxide, or zinc oxide That's good too.

[0378] This embodiment may be appropriately combined with other embodiments described herein, at least in part. They can be implemented in combination.

[0379] (Embodiment 6) In this embodiment, it can be used in a detection unit of an input / output device according to one aspect of the present invention. The configuration and driving method of the detection circuit will be explained with reference to Figure 19.

[0380] Figure 19 shows the configuration and driving method of a detection circuit 69 and a converter CONV according to one aspect of the present invention. A diagram for explanation.

[0381] Figure 19(A) illustrates the configuration of a detection circuit 69 and a converter CONV according to one aspect of the present invention. This is a circuit diagram, and Figures 19(B-1) and 19(B-2) illustrate the timing of the driving method. This is a chart.

[0382] In one aspect of the present invention, the detection circuit 69 has a gate that is electrically connected to the first electrode 61 of the detection element C. The first electrode is electrically connected to a wiring VPI that can supply, for example, ground potential. It is equipped with a first transistor M1 (see Figure 19(A)).

[0383] Furthermore, the gate is electrically connected to scan line G1, which can supply a selection signal, and the first The electrode of is electrically connected to the second electrode of the first transistor M1, and the second electrode is, for example A second transistor electrically connected to a signal line DL that can supply the detection signal DATA. A configuration including the ZISTA M2 is also acceptable.

[0384] Furthermore, the gate is electrically connected to wiring RES, which can supply a reset signal. The first electrode is electrically connected to the first electrode 61 of the sensing element C, and the second electrode is connected to, for example, ground. Third transistor M3 is electrically connected to wiring VRES, which can supply potential. A configuration including the above may also be possible.

[0385] The capacitance of the sensing element C is, for example, determined when something is in close proximity to the first electrode 61 or the second electrode 62. This can be caused by a change in the distance between the first electrode 61 and the second electrode 62. As a result, the detection unit 60U receives a detection signal DAT based on the change in capacitance of the detection element C. A can be supplied.

[0386] Furthermore, the detection unit 60U can control the potential of the second electrode 62 of the detection element C. It is equipped with wiring CS that can supply control signals.

[0387] Furthermore, the first electrode 61 of the detection element C, the gate of the first transistor M1, and the third transistor The node where the first electrode of the transistor is electrically connected is called node A.

[0388] Wiring VRES and wiring VPI can, for example, supply ground potential, and wiring VPO The wiring BR can, for example, supply a high power potential.

[0389] Additionally, wiring RES can supply a reset signal, and scan line G1 supplies a selection signal. The wiring CS can then supply a control signal to control the potential of the second electrode 62 of the sensing element C. They can provide it.

[0390] Additionally, the signal line DL can supply the detection signal DATA, and terminal OUT can supply the detection signal D It can supply signals converted based on ATA.

[0391] Furthermore, various circuits can convert the detection signal DATA and supply it to the OUT terminal. This can be used in the converter CONV. For example, the converter CONV can be connected to the detection circuit 69 and the power By connecting them electrically, a source follower circuit or current mirror circuit is formed. It may be possible to make it possible.

[0392] Specifically, a converter CONV using transistor M4 is used in a source follower circuit. This can be configured (see Figure 19(A)). Note that the first transistor M1 to the third transistor A transistor that can be manufactured using the same process as transistor M3 is used for transistor M4. That's good too.

[0393] Furthermore, transistors M1 to M3 have semiconductor layers. For example, Group 4 elements A semiconductor, compound semiconductor, or oxide semiconductor can be used as the semiconductor layer. Specifically, Semiconductors containing licone, semiconductors containing gallium arsenide, or oxide semiconductors containing indium These can be applied.

[0394] Furthermore, in Embodiment 5, the configuration of a transistor in which an oxide semiconductor is applied to the semiconductor layer is described as follows: I will explain in detail.

[0395] <Method for driving the detection circuit 69> The method for driving the detection circuit 69 will now be explained.

[0396] Step 1 In the first step, the third transistor is made conductive and then deconducted. A reset signal is supplied to the gate, and the potential of the first electrode 61 of the sensing element C is set to a predetermined potential. (See Figure 19(B-1) Period T1).

[0397] Specifically, the reset signal is supplied to the wiring RES. The transistor sets the potential of node A to, for example, ground potential (see Figure 19(A)).

[0398] Step 2 In the second step, a selection signal is used to turn the second transistor M2 into a conducting state, and this signal is then applied to the gate. This supplies power to the signal line DL, electrically connecting the second electrode of the first transistor to the signal line DL.

[0399] Specifically, a selection signal is supplied to scan line G1. The second transistor to which the selection signal is supplied The transistor M2 electrically connects the second electrode of the first transistor to the signal line DL (Figure 1). 9(B-1) Period T2).

[0400] Step 3 In the third step, the control signal is supplied to the second electrode of the sensing element C, and the control signal and The potential, which changes based on the capacitance of the sensing element C, is supplied to the gate of the first transistor M1. ru.

[0401] Specifically, a rectangular control signal is supplied to the wiring CS. The rectangular control signal is then connected to the second electrode 6. By supplying power to 2, the potential of node A rises based on the capacitance of sensing element C (Figure 19) B-1) Refer to the latter half of period T2.

[0402] For example, if a sensing element is placed in the atmosphere, a material with a higher dielectric constant than the atmosphere will be present in the sensing element. When placed in close proximity to the second electrode 62 of sub-element C, the capacitance of sensing element C appears to be larger. ru.

[0403] As a result, the change in potential at node A caused by the rectangular control signal is greater than that of air due to its higher dielectric constant. The size becomes smaller compared to when objects are not placed in close proximity (see solid line in Figure 19 (B-2)). ).

[0404] Step 4 In the fourth step, the signal caused by the change in the gate potential of the first transistor M1 The signal is supplied to the DL signal line.

[0405] For example, the change in current caused by a change in the gate potential of the first transistor M1 is shown as a signal line. Supply to DL.

[0406] The converter CONV converts the change in current flowing through the signal line DL into a change in voltage and outputs it.

[0407] Step 5 In the fifth step, a selection signal is used to de-conduct the second transistor M2. To supply to

[0408] This embodiment may be appropriately combined with other embodiments described herein, at least in part. They can be implemented in combination.

[0409] (Embodiment 7) In this embodiment, examples of electronic devices and lighting devices to which a display device according to one aspect of the present invention is applied are given. I will explain this by referring to the drawings.

[0410] As an electronic device that applies a display device with a flexible shape, for example, television Television equipment (also called television or television receiver), monitors for computers, etc. Digital cameras, digital video cameras, digital photo frames, mobile phones (mobile phones) (Also called mobile phone devices), portable game consoles, personal information terminals, sound playback devices, pachinko machines Examples include large game consoles.

[0411] Furthermore, lighting devices and display devices can be installed on the interior or exterior walls of houses and buildings, or on the interior or exterior of automobiles. It can also be incorporated along the curved surface of the frame.

[0412] Figure 20(A) shows an example of a mobile phone. The mobile phone 7400 has a housing 740 In addition to the display unit 7402 incorporated into 1, there are also operation buttons 7403, an external connection port 7404, It is equipped with speaker 7405, microphone 7406, etc. Note that mobile phone 7400 is shown on the front It is manufactured by using the display device in the display unit 7402.

[0413] The mobile phone 7400 shown in Figure 20(A) allows the user to touch the display unit 7402 with their finger or the like. Information can be entered. Also, all kinds of actions such as making phone calls or typing text can be performed. This operation can be performed by touching the display unit 7402 with a finger or the like.

[0414] Furthermore, the power can be turned ON or OFF by operating the control button 7403, and the display unit 7402 will show the following: You can switch the type of image displayed. For example, from the email composition screen to the main menu You can switch to the window screen.

[0415] Here, the display unit 7402 incorporates a display device according to one aspect of the present invention. This allows for a mobile phone with a curved display that is also highly reliable.

[0416] Figure 20(B) shows an example of a wristband-type display device. Portable display device 710 0 comprises the housing 7101, the display unit 7102, the operation buttons 7103, and the transmitting / receiving device 7104. Prepare.

[0417] The portable display device 7100 is capable of receiving video signals via the transceiver 7104, and receives The video can be displayed on the display unit 7102. Additionally, the audio signal can be transmitted to other receiving devices. It is also possible.

[0418] Additionally, the operation button 7103 can be used to turn the power on and off, and to switch the displayed image. You can also adjust the volume of the sound, etc.

[0419] Here, the display unit 7102 incorporates a display device according to one aspect of the present invention. This allows for the creation of a highly reliable portable display device equipped with a curved display section.

[0420] Figures 20(C) to 20(D) show an example of a lighting device. Lighting device 7210, Each of the lighting devices 7220 includes a base 7201 equipped with an operating switch 7203 and a base 720 It has a light-emitting part supported by 1.

[0421] The light-emitting section 7212 of the lighting device 7210 shown in Figure 20(C) has two convexly curved parts The light-emitting parts are arranged symmetrically. Therefore, the lighting device 7210 is the central component. It can illuminate in all directions.

[0422] The lighting device 7220 shown in Figure 20(D) includes a concavely curved light-emitting section 7222. Therefore, in order to concentrate the light emitted from the light-emitting unit 7222 onto the front of the lighting device 7220, It is suitable for brightly illuminating a wide area.

[0423] Furthermore, the light-emitting parts of the lighting device 7210 and lighting device 7220 are flexible. Because it has such a feature, the light-emitting part is fixed with a plastic member or a movable frame or other member, and The light-emitting surface of the light-emitting part may be configured to be freely curved to suit the application.

[0424] Here, each of the light-emitting parts provided by the lighting device 7210 and the lighting device 7220 is, A display device of one form is incorporated. Therefore, it has a curved display section and reliability It can be used as a high-performance lighting device.

[0425] Figure 21(A) shows an example of a portable display device. The display device 7300 is housed in a casing 7301 It comprises a display unit 7302, operation buttons 7303, a pull-out member 7304, and a control unit 7305. ru.

[0426] The display device 7300 is a flexible display rolled up inside a cylindrical housing 7301. It includes a section 7302. The display section 7302 has a first substrate on which a light-shielding layer and the like are formed, and a transistor It has a second substrate on which a zista and the like are formed. The display unit 7302 is located inside the housing 7301. The second circuit board is always wound on the outside.

[0427] Furthermore, the display device 7300 can receive video signals via the control unit 7305, and the received video The image can be displayed on the display unit 7302. The control unit 7305 is also equipped with a battery. Furthermore, the control unit 7305 is equipped with a connector, and is configured to directly supply video signals and power. That's good too.

[0428] Additionally, the 7303 control button allows you to turn the power on and off, and switch the displayed image. It is possible to perform actions such as [this].

[0429] Figure 21(B) shows the display unit 7302 pulled out by the pull-out member 7304. In this state, an image can be displayed on the display unit 7302. Also, the surface of the housing 7301 The control buttons 7303 located on the device allow for easy one-handed operation.

[0430] Furthermore, to prevent the display unit 7302 from bending when it is pulled out, the display unit 73 A reinforcing frame may be provided at the end of 02.

[0431] In addition to this configuration, a speaker is installed in the enclosure, and the audio signal received along with the video signal is used. It would also be possible to configure it to output audio.

[0432] The display unit 7302 incorporates a display device according to one aspect of the present invention. Therefore, the display Since the display unit 7302 is a flexible and reliable display device, the display device 7300 This allows for a lightweight and highly reliable display device.

[0433] Furthermore, if a display device according to one aspect of the present invention is provided, the electronic devices and lighting devices mentioned above will also be included. Needless to say, this is not particularly limited to that.

[0434] The configuration and methods shown in this embodiment may be adapted to the configuration and methods shown in other embodiments. They can be used in any combination. [Explanation of Symbols]

[0435] 10 Display device 11 Display area 15 pillars 16 Walls 21 Interior materials 22 Exterior components 23 Support member 25 Antennas 26 Light-shielding part 27 Wireless signals 50 Electronic equipment 51a Support 51b Support 51c Support 52 Hinge 52a Hinge 52b Hinge 53a Substrate 53b Circuit board 53c circuit board 54a terminal 54b terminal 54c terminal 55a battery 55b Battery 55c battery 60U detection unit 61 Electrode 62 electrodes 63 Insulating layer 64 Window section 66 Base material 66a Barrier film 66b Base material 66c resin layer 67 Protective base material 67p protective layer 69 Detection Circuit 70 Electronic equipment 100 Display Panels 100a Display Panel 100b Display Panel 100c display panel 100d display panel 100e Display Panel 100f display panel 100g display panel 100h display panel 100i display panel 100j display panel 101 Display area 101a Display area 101b Display area 101c display area 101d Display area 110 areas 110a area 110b area 110c area 110d area 112 FPC 112a FPC 112b FPC 112c FPC 120 areas 120b area 120c area 123 FPC 131 Resin layer 132 Protective substrate 133 Resin layer 134 Protective substrate 141 pixels 141a pixels 141b pixels 142a Wiring 142b Wiring 143a Circuit 143b circuit 145 Wiring 150 Wireless Modules 151 circuit boards 152 circuit boards 153 Adhesive layer 300 Touch Panels 301 Display section 302 pixels 302B subpixels 302G sub-pixels 302R sub-pixel 302t transistor 303c capacity 303g(1) Scan line drive circuit 303g(2) Image Pixel Driving Circuit 303s(1) Image signal line driving circuit 303s(2) Imaging signal line drive circuit 303t transistor 308 image pixels 308p Photoelectric element 308t transistor 309 FPC 310 circuit board 310a Barrier film 310b board 310c adhesive layer 311 Wiring 319 terminals 321 Insulating film 328 Bulkhead 329 Spacer 350R First light-emitting element 351R lower electrode 352 Upper electrode 353 layers 353a Light-emitting unit 353b Light-emitting unit 354 Middle Class 360 sealing material 367BM light shielding layer 367p anti-reflection layer 367R colored layer 370 Opposing substrate 370a Barrier film 370b board 370c adhesive layer 380B Light-Emitting Module 380G Light-Emitting Module 380R Light-Emitting Module 500 Touch Panels 500B Touch Panel 501 Display section 502R sub-pixel 502t transistor 503c capacity 503g scan line drive circuit 503t transistor 509 FPC 510 circuit board 510a Barrier film 510b circuit board 510c adhesive layer 511 Wiring 519 terminals 521 Insulating film 528 Bulkhead 550R First light-emitting element 560 Sealing material 567BM light shielding layer 567p anti-reflection layer 567R colored layer 570 circuit boards 570a Barrier film 570b circuit board 570c ​​adhesive layer 580R Light-Emitting Module 590 circuit boards 591 Electrode 592 Electrode 593 Insulating layer 594 Wiring 595 Touch Sensor 597 Adhesive layer 598 Wiring 599 Connectivity Layer 600 Input / Output Devices 601 Display section 602 pixels 602B subpixels 602G sub-pixels 602R sub-pixel 602t transistor 603c capacity 603g scan line drive circuit 603t transistor 610 Base material 610a Barrier film 610b base material 610c resin layer 611 Wiring 619 terminals 620 Input Devices 621 Insulating film 628 Bulkhead 650R Light-emitting diode 660 Sealing material 667p anti-reflection layer 680R Light-Emitting Module 7100 Portable Display Device 7101 enclosure 7102 Display section 7103 Operation Buttons 7104 Transceiver 7201 Daibu 7203 Operation switch 7210 Lighting device 7212 Light-emitting part 7220 Lighting device 7222 Light-emitting part 7300 display device 7301 enclosure 7302 Display section 7303 Operation Buttons 7304 Drawer component 7305 Control Unit 7400 mobile phones 7401 enclosure 7402 Display section 7403 Operation Buttons 7404 External connection port 7405 Speaker 7406 Microphone

Claims

1. A display device having a first flexible display panel and a second flexible display panel, The first display panel has a first region that can transmit visible light, a second region that can block visible light, and a third region on which a display can be made. The second display panel has a fourth region that can transmit visible light, a fifth region that can block visible light, and a sixth region on which a display can be made. The third region of the first display panel and the fourth region of the second display panel have regions that overlap each other. The first display panel has a resin layer covering the third region and the second display panel has a resin layer covering the sixth region, Display device.

2. A display device having a first flexible display panel and a second flexible display panel, The first display panel has a first region that can transmit visible light, a second region that can block visible light, and a third region on which a display can be made. The second display panel has a fourth region that can transmit visible light, a fifth region that can block visible light, and a sixth region on which a display can be made. A first terminal is provided in the second area of ​​the first display panel. A second terminal is provided in the fifth area of ​​the second display panel. The third region of the first display panel and the fourth region of the second display panel have regions that overlap each other. The second region of the first display panel and the fourth region of the second display panel have regions that overlap each other. The first terminal is located on the back side of the second display panel. The first display panel has a resin layer covering the third region and the second display panel has a resin layer covering the sixth region, Display device.

3. In claim 1 or claim 2, The first display panel has a region in which the height of the display surface in the third region and the height of the display surface in the sixth region of the second display panel coincide. Display device.

4. In any one of claims 1 to 3, The difference between the refractive index of the resin layer and the refractive index of the display surface-side component of the first display panel is 20% or less. Display device.

5. In any one of claims 1 to 4, The difference between the refractive index of the resin layer and the refractive index of the display surface-side member of the second display panel is 20% or less. Display device.

Images