Display device

Abstract

To suppress reduction in light transmittance even when a sensor is overlapped with a parallax barrier.SOLUTION: A display device includes a display region that displays an image, a parallax barrier that allows an image output from the display region to be visually recognized as a parallax image, and a sensor provided to overlap the parallax barrier, the parallax barrier including a light shielding body and a plurality of slits that do not include the light shielding body, extend in a predetermined direction, and transmit light, the sensor including an electrode and a wiring line electrically coupled to the electrode, at least the electrode having a mesh structure formed of a plurality of thin metal wires extending in a predetermined direction. The wiring includes the thin metal wire in a connected state adjacent to the thin metal wire in a non-connected state, and an extending direction of the thin metal wire and an extending direction of the slit are different from each other.SELECTED DRAWING: Figure 17

Description

[Technical Field]

[0001] The present invention relates to a display device. [Background technology]

[0002] BACKGROUND ART Display devices are known that provide a parallax barrier between a liquid crystal display panel and a light source to block part of the light projected from the light source onto the liquid crystal display panel, thereby enabling a 3D (three dimensions) image to be viewed (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-175875 Summary of the Invention [Problem to be solved by the invention]

[0004] By overlaying various sensors on a parallax barrier, a display device with added value can be realized. However, when sensors are overlaid on a parallax barrier, the slits, which are openings between the light blocking bodies, may be blocked. If the slits are blocked, light cannot pass through, resulting in a dark image, which is undesirable.

[0005] The present invention has been made in view of the above, and has an object to provide a display device that can suppress a decrease in light transmittance even when a sensor is superimposed on a parallax barrier. [Means for solving the problem]

[0006] A display device according to one aspect of the present disclosure includes a display area for displaying an image, a parallax barrier for allowing the image output by the display area to be viewed as a parallax image, and a sensor arranged on top of the parallax barrier, wherein the parallax barrier includes a light shield and a plurality of slits that are free of the light shield and extend in a predetermined direction to allow light to pass through, and the sensor includes an electrode and wiring electrically connected to the electrode, wherein at least the electrode has a mesh structure formed by a plurality of thin metal wires extending in a predetermined direction, and the wiring is composed of thin metal wires in a connected state adjacent to the thin metal wires in an unconnected state, and the extension direction of the thin metal wires and the extension direction of the slits are different from each other. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram showing the mechanism of a display device that produces a stereoscopic view. [Figure 2] FIG. 2 is a schematic diagram showing the optical axes of light from the first panel for a plurality of viewpoints. [Figure 3] FIG. 3 is a diagram illustrating an example of the configuration of the sensor unit. [Figure 4] FIG. 4 is a schematic diagram showing a schematic cross-sectional configuration of a detection system to which the display device according to the embodiment is applied. [Figure 5] FIG. 5 is a block diagram illustrating an example of the configuration of a detection unit of the display device according to the embodiment. [Figure 6] FIG. 6 is a schematic diagram showing the positional relationship between the position of the object to be detected in the space above the detection region and each electrode. [Figure 7] FIG. 7 is a schematic diagram showing the spatial coordinates of the object to be detected in the space above the detection area. [Figure 8] FIG. 8 is a flowchart showing an example of processing by the processing circuit. [Figure 9A] FIG. 9A is a diagram showing an example of a mesh structure made of thin metal wires. [Figure 9B] FIG. 9B is a diagram showing another example of a mesh structure made of thin metal wires. [Figure 10]FIG. 10 is a diagram showing a comparative example of an electrode formed of thin metal wires. [Figure 11] FIG. 11 is a diagram showing a mesh structure made of thin metal wires extending in the same direction as the electrodes shown in FIG. [Figure 12] FIG. 12 is a diagram illustrating an example of a parallax barrier. [Figure 13] FIG. 13 is a diagram showing a state in which the mesh structure shown in FIG. 11 and the parallax barrier shown in FIG. 12 are superimposed. [Figure 14] FIG. 14 illustrates an example of an electrode according to the present disclosure. [Figure 15] FIG. 15 is a diagram showing a mesh structure made of thin metal wires extending in the same direction as the electrodes shown in FIG. [Figure 16] FIG. 16 is a diagram illustrating an example of a parallax barrier. [Figure 17] FIG. 17 is a diagram showing a state in which the mesh structure shown in FIG. 15 and the parallax barrier shown in FIG. 16 are superimposed. DETAILED DESCRIPTION OF THE INVENTION

[0008] Modes (embodiments) for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited to the contents described in the following embodiments. Furthermore, the components described below include those that can be easily imagined by a person skilled in the art and those that are substantially identical. Furthermore, the components described below can be combined as appropriate. Note that the disclosure is merely an example, and appropriate modifications that a person skilled in the art can easily conceive while maintaining the gist of the invention are naturally included within the scope of the present invention. Furthermore, for clarity of explanation, the drawings may show the width, thickness, shape, etc. of each part schematically compared to the actual embodiment. However, these are merely examples and are not intended to limit the interpretation of the present invention. Furthermore, in this specification and each figure, elements similar to those described above with reference to the previous figures may be designated by the same reference numerals, and detailed descriptions may be omitted as appropriate.

[0009] (How stereoscopic vision works) Before describing the embodiments, the mechanism of a display device that produces a stereoscopic view will be described with reference to FIGS.

[0010] Fig. 1 is a schematic diagram showing the mechanism of a display device that produces a stereoscopic view. Fig. 2 is a schematic diagram showing optical axes R1, R2, ..., Rn of light from a first panel 40 relative to multiple viewpoints E1, E2, ..., En.

[0011] A pixel 48 shown in FIGS. 1 and 2 has a first subpixel 49R, a second subpixel 49G, and a third subpixel 49B. Hereinafter, the term "subpixel 49" encompasses the first subpixel 49R, the second subpixel 49G, and the third subpixel 49B. A plurality of pixels 48 are provided on the first panel 40. The first panel 40 displays and outputs an image by controlling the brightness of the subpixels 49 of each of the plurality of pixels 48. Hereinafter, two directions along the image display surface of the first panel 40 on which the plurality of pixels 48 are provided are referred to as a first direction Dx and a second direction Dy. The first direction Dx and the second direction Dy are orthogonal to each other. Furthermore, a direction orthogonal to the first direction Dx and the second direction Dy is referred to as a third direction Dz.

[0012] 1 illustrates a so-called stripe-type color pixel in which the sub-pixels 49 are arranged in the order of the first sub-pixel 49R, the second sub-pixel 49G, and the third sub-pixel 49B in a rectangular pixel 48 from one side to the other in the first direction Dx, but the arrangement and shape of the sub-pixels 49 of the pixel 48 are not limited to this and can be changed as appropriate. Also, Fig. 1 and other figures illustrate a pixel 48 that achieves color display output by having the first sub-pixel 49R output red (R), the second sub-pixel 49G output green (G), and the third sub-pixel 49B output blue (B), but the color combination and number of colors of the sub-pixels 49 of the pixel 48 are not limited to this and can be changed as appropriate.

[0013] A parallax barrier is formed between the first panel 40 and viewpoints E1, E2, ..., En of a user who views light from the first panel 40 and recognizes an image. The parallax barrier includes, for example, a light shielding body PB1, a light shielding body PB2, and an opening formed between the light shielding body PB1 and the light shielding body PB2, as shown in FIGS. 1 and 2. The opening is a slit that does not have a light shielding body and extends in a predetermined direction to transmit light. Hereinafter, the opening may be referred to as a slit. In FIGS. 1 and 2, the opening width of the opening in the first direction Dx is defined as width L2.

[0014] The light shielding body PB1 and the light shielding body PB2 block light between the first panel 40 and the viewpoints E1, E2, ..., En. Therefore, of the light traveling from the first panel 40 toward the viewpoints E1, E2, ..., En, the light having the light shielding body PB1 or the light shielding body PB2 on its optical axis is blocked and is not visible to the user.

[0015] FIG. 2 schematically shows optical axes R1, R2, ..., Rn of light traveling from the first panel 40 toward the viewpoints E1, E2, ..., En through the openings of the parallax barrier. Optical axis R1 is the optical axis of light traveling from the first sub-pixel 49R toward the viewpoint E1. Optical axis R2 is the optical axis of light traveling from the second sub-pixel 49G toward the viewpoint E2. Optical axis Rn is the optical axis of light traveling from the third sub-pixel 49B toward the viewpoint En. Two of the viewpoints E1, E2, ..., En correspond to the viewpoints of the two eyes of a user (human). In this way, the optical axes R1, R2, ..., Rn of light traveling from each of the multiple sub-pixels 49 toward different viewpoints E1, E2, ..., En establish stereoscopic vision. Furthermore, by changing the relative position of the user with respect to the first panel 40 and the parallax barrier, different stereoscopic images can be viewed from different viewpoints.

[0016] The number (n) of optical axes R1, R2, ..., Rn is an arbitrary natural number. The larger the number n, the more viewpoints E1, E2, ..., En can be used for stereoscopic viewing.

[0017] The incident angle range θ0 of light entering the opening of the parallax barrier and the exit angle range θ1 of light that can pass from the first panel 40 through the opening of the parallax barrier toward the viewpoints E1, E2, ..., En depend on the width L2 and the distance L3 between the first panel 40 and the parallax barrier. The exit angle range θ1 determines the exit range L1 of the first panel 40 that can exit light through one opening in the parallax barrier. The exit range L1 indicates the width in the first direction Dx. The width of the exit range L1 in the first direction Dx is greater than the width L2.

[0018] A sensor unit 10 is provided on the third direction Dz side of the parallax barrier including the light shielding body PB1 and the light shielding body PB2. Fig. 3 is a diagram showing an example of the configuration of the sensor unit 10. The sensor unit 10 has a sensor substrate 11, a plurality of electrodes 12 provided in a detection area AA of the sensor substrate 11, and wiring 13 extending from each of the plurality of electrodes 12. The sensor unit 10 is connected to a detection unit 20. The detection unit 20 has a control substrate 21, a detection circuit 22, a processing circuit 23, a power supply circuit 24, and an interface circuit 25.

[0019] The detection area AA of the sensor substrate 11 is an area where a plurality of electrodes 12 arranged in a matrix in the Dx direction (first direction) and the Dy direction (second direction) are provided. The sensor substrate 11 is, for example, a glass substrate or a light-transmitting flexible printed circuit (FPC).

[0020] The display device 1 according to this embodiment has a function of detecting the position of a detectable object present in the space above the detection area AA of the sensor substrate 11 and calculating the coordinates of the detectable object. In this disclosure, the Dx direction (first direction) and the Dy direction (second direction) are orthogonal to each other in the detection area AA. In this disclosure, the direction orthogonal to the Dx direction (first direction) and the Dy direction (second direction) is defined as the Dz direction (third direction).

[0021] In the example shown in Figure 3, five electrodes 12 are arranged in the Dx direction and four electrodes 12 are arranged in the Dy direction, resulting in a total of 5 x 4 (= 20) electrodes 12, but the number of electrodes 12 arranged in the detection area AA of the sensor substrate 11 is not limited to this.

[0022] The control board 21 is electrically connected to the sensor board 11 via a wiring board 31. The wiring board 31 is, for example, a flexible printed circuit board. Each electrode 12 of the sensor unit 10 is connected to a detection circuit 22 of the detection unit 20 via the wiring board 31.

[0023] The control board 21 is provided with a detection circuit 22, a processing circuit 23, a power supply circuit 24, and an interface circuit 25. The control board 21 is, for example, a rigid board.

[0024] The detection circuit 22 generates a detection value of each electrode 12 based on the detection signal of each electrode 12 output from the sensor substrate 11. The detection circuit 22 is, for example, an analog front end (AFE) IC.

[0025] The processing circuit 23 generates spatial coordinates indicating the position of the object to be detected (for example, the operator's finger) in the detection area AA based on the detection values ​​of each electrode 12 output from the detection circuit 22. The processing circuit 23 may be, for example, a PLD (Programmable Logic Device) such as an FPGA (Field Programmable Gate Array), or may be, for example, an MCU (Micro Control Unit).

[0026] The power supply circuit 24 is a circuit that supplies power to the detection circuit 22 and the processing circuit 23 .

[0027] The interface circuit 25 is, for example, a USB (Universal Serial Bus) controller IC, and is a circuit that controls communication between the processing circuit 23 and a host controller (not shown) of a host device in which the detection system is installed.

[0028] FIG. 4 is a schematic diagram showing a schematic cross-sectional configuration of a display system to which the display device according to the embodiment is applied.

[0029] The display system 100 includes a display device 1 and a display panel 200. The display panel 200 corresponds to a display area that displays an image. The display panel 200 is disposed opposite a sensor unit 10 of the display device 1 via an air gap AG. The sensor unit 10 of the display device 1 is disposed such that a detection area AA of the sensor unit 10 and a display area DA of the display panel 200 overlap in the Dz direction (third direction) in a plan view. The display panel 200 is exemplified by a liquid crystal display (LCD). The display panel 200 may be, for example, an organic light emitting diode (OLED), an inorganic light emitting diode (micro LED, mini LED), or a transparent display that displays an image on a transparent display surface.

[0030] The sensor unit 10 includes a sensor substrate 11, an electrode 12, a shield 14, and a cover glass 15. The sensor unit 10 is stacked in the following order from the display panel 200 side: parallax barrier unit PB, shield 14, sensor substrate 11, electrode 12, and cover glass 15. Hereinafter, the surface of the cover glass 15 provided on the top layer will also be referred to as the "detection surface S." Note that the detection surface S is not limited to the surface of the cover glass 15. In the present disclosure, the detection surface S is a reference surface for defining the distance to the object to be detected in the Dz direction (third direction), and may be, for example, the surface of the electrode 12.

[0031] The shield 14 is provided on a first surface of the sensor substrate 11 facing the display panel 200. The electrodes 12 are provided on a second surface behind the first surface of the sensor substrate 11. The cover glass 15 is provided on the second surface of the sensor substrate 11 via an adhesive layer OC. It is desirable to use a light-transmitting adhesive for the adhesive layer OC. The adhesive layer OC may be formed of a light-transmitting film with double-sided adhesiveness, such as OCA (Optical Clear Adhesive). A parallax barrier unit PB is provided on the display panel 200 side of the shield 14 to realize light shields PB1 and PB2 (see FIG. 2). The parallax barrier unit PB is provided on top of the display panel 200 via an air gap AG. The parallax barrier unit PB allows the image output from the display area to be viewed as a parallax image.

[0032] 5 is a block diagram showing an example of the configuration of the detection unit of the display device according to the embodiment. In the present disclosure, the detection unit 20 calculates the coordinates of the object to be detected in the space above the detection area AA.

[0033] 5, the detection unit 20 includes a signal detection unit 42, an A / D conversion unit 43, and a coordinate calculation unit 44. The signal detection unit 42 and the A / D conversion unit 43 are included in the detection circuit 22. The coordinate calculation unit 44 is included in the processing circuit 23.

[0034] The signal detection unit 42 generates an output value Rawdata(n) of each electrode 12 based on a detection signal Det(n) (n is a natural number from 1 to N, and N is the number of electrodes in the detection area AA) of each electrode 12 output from the sensor substrate 11. The A / D conversion unit 43 samples the output value of each electrode 12 and converts it into a digital signal.

[0035] The coordinate calculation unit 44 calculates the spatial coordinates R (Rx, Ry, Rz) of the position where the object to be detected exists based on the output value Rawdata(n) of each electrode 12.

[0036] Fig. 6 is a schematic diagram showing the positional relationship between the position of the object to be detected in the space above the detection area and each electrode. Fig. 7 is a schematic diagram showing the spatial coordinates of the object to be detected in the space above the detection area. Figs. 6 and 7 show an example in which a target TG exists in the space above the detection area AA as a stereoscopic image.

[0037] As shown in Fig. 6, in this example, twelve electrodes 12 are provided in the detection area AA. The target TG is, for example, a 3D image of a push button. When a detectable object F, such as an operator's finger, approaches the target TG as indicated by arrow Y1 to operate the push button, a capacitance corresponding to the distance between the detectable object F present in the space above the detection area AA and each electrode 12 is generated in each electrode 12 in the detection area AA, and an output value Rawdata(n) corresponding to the capacitance is acquired by the detection circuit 22. In other words, the sensor unit 10 outputs the value of the capacitance generated between the electrode 12 and the detectable object F.

[0038] The processing circuit 23 uses the output value Rawdata(n) of each electrode 12 generated by the detection circuit 22 to extract spatial coordinates R (Rx, Ry, Rz) indicating the position of the object to be detected F in the space above the detection area AA shown in Figure 7.

[0039] In the present disclosure, spatial coordinates R (Rx, Ry, Rz) correspond to the position of a detectable object F present in space above the detection surface S. The spatial coordinates R (Rx, Ry, Rz) include first data Rx in the X direction corresponding to the position in the Dx direction (first direction) on the detection area AA, second data Ry in the Y direction corresponding to the position in the Dy direction (second direction) on the detection area AA, and third data Rz in the Z direction corresponding to the position in the Dz direction (third direction) perpendicular to the Dx direction (first direction) and the Dy direction (second direction).

[0040] The processing circuit 23 outputs the coordinates calculated by the coordinate calculation unit 44. The coordinates calculated by the coordinate calculation unit 44 are transmitted to the host device via the interface circuit 25. The host device performs control according to the coordinates transmitted from the processing circuit 23. Specifically, the host device executes processing in response to the selection of a target TG, such as an image of a push button. Note that the present disclosure is not limited to the processing on the host device side.

[0041] (Example of processing by a processing circuit) 8 is a flowchart showing an example of processing by the processing circuitry 23. In this example, different coordinates are calculated depending on whether the operation mode is a 2D (two dimensions) mode or a 3D mode. The 2D mode is an operation mode in which a 2D image is displayed. The 3D mode is an operation mode in which a 3D image is displayed.

[0042] 8, the processing circuit 23 determines whether the current operation mode is the 3D mode (step S101). If the result of the determination in step S101 is that the current operation mode is the 3D mode (Yes in step S101), the process proceeds to step S102, and a 3D mode display is performed (step S102).

[0043] During 3D mode display, it is determined whether or not a detectable object such as a finger has been detected (step S103). If the result of the determination in step S103 is that a detectable object has been detected (Yes in step S103), the process proceeds to step S104, where the spatial coordinates of the detectable object are calculated (step S104). The calculated coordinates are output to the host device (step S105).

[0044] If it is determined in step S103 that a detectable object has not been detected (No in step S103), the display in 3D mode continues (step S102), and it continues to determine whether a detectable object has been detected (step S103).

[0045] If the result of the determination in step S101 is that the current operation mode is not 3D mode (No in step S101), it is determined whether the current operation mode is 2D mode (step S106).If the result of the determination in step S106 is that the current operation mode is 2D mode (Yes in step S106), the process proceeds to step S107, and a 2D mode display is performed (step S107).

[0046] When displaying in 2D mode, it is determined whether or not a detectable object such as a finger has been detected (step S108). If the result of the determination in step S108 is that a detectable object has been detected (Yes in step S108), coordinates on the surface of the detection plane are calculated (step S109). The calculated coordinates are output to the host device (step S105).

[0047] If the result of the determination in step S108 is that the object to be detected has not been detected (No in step S108), the display in 2D mode continues (step S107), and the determination of whether the object to be detected has continued (step S108).

[0048] If the result of the determination in step S106 is that the current operation mode is not the 2D mode (No in step S106), the process returns to step S101, and a determination is made regarding the current operation mode (step S101).

[0049] As described above, the processing circuit 23 performs processing according to the operation mode, thereby calculating coordinates according to the current operation mode and outputting the detected coordinates to the host device. The host device can then perform control according to the coordinates.

[0050] (Example of mesh structure) FIG. 9A is a diagram illustrating an example of a mesh structure made of thin metal wires. FIG. 9A illustrates, in plan view, an example of a mesh structure made of thin metal wires constituting electrode 12. The thin metal wires illustrated in FIG. 9A are arranged at a constant pitch P. Electrode 12 may be formed of a translucent oxide conductor, but translucent oxide conductors have higher resistance than conductive metals. For this reason, it is preferable to form electrode 12 from a conductive metal layer. However, because the metal layer is light-shielding, blocking light from the display area DA of display panel 200 may make the metal layer conspicuously visible. Therefore, electrode 12 has a mesh structure made of thin metal wires, which makes the thin metal wires invisible while allowing light from the display area DA of display panel 200 to pass through the spaces between the thin metal wires. Therefore, at least electrode 12 has a mesh structure formed of a plurality of thin metal wires extending in a predetermined direction.

[0051] In FIG. 9A, the portions of the fine metal wires indicated by solid lines are electrically conductive portions. The portions of the fine metal wires indicated by dashed lines are electrically non-conductive portions. The electrically conductive portions are continuous, which can achieve the same effect as wiring 13 (see FIG. 6). In other words, the existence of electrically conductive portions and electrically non-conductive portions in a mesh structure made of fine metal wires constitutes wiring 13 shown in FIG. 3. More specifically, wiring 13 is constituted by connected fine metal wires adjacent to unconnected fine metal wires.

[0052] The thin metal wires 52 and 53 extend in a direction D1 inclined with respect to the first direction Dx (hereinafter, sometimes referred to as the extending direction D1). The thin metal wires 51 and 54 extend in a direction D2 inclined with respect to the first direction Dx. Furthermore, the thin metal wires 58 and 59 extend in the first direction Dx.

[0053] The thin metal wires 51 and 52 are electrically connected to each other by the thin metal wire 58. The thin metal wires 53 and 54 are electrically connected to each other by the thin metal wire 59. Furthermore, the thin metal wires can be connected to each other by the connection part 68 or the connection part 69.

[0054] In the case of Fig. 9A described above, one thin metal wire is continuously connected to form wiring 13. The wiring may be formed by continuously connecting thin metal wires connected in a circular shape. Fig. 9B is a diagram showing another example of a mesh structure made of thin metal wires.

[0055] 9B shows, in plan view, an example of a mesh structure made of thin metal wires that constitutes electrode 12. The thin metal wires shown in FIG. 9B are arranged at a constant pitch P, as in FIG. 9A. As in FIG. 9A, thin metal wires shown in FIG. 9B are electrically connected to each other by thin metal wire 58, with thin metal wire 51 and thin metal wire 52 being electrically connected to each other. Thin metal wire 53 and thin metal wire 54 are electrically connected to each other by thin metal wire 59. The thin metal wires can also be connected to each other by connection portion 68 or connection portion 69.

[0056] In FIG. 9B, wiring 13A is formed by continuously connecting annular thin metal wires. Furthermore, wiring 13B partially uses annular thin metal wires. Wiring 13A and 13B are formed by connected thin metal wires adjacent to unconnected thin metal wires. Electrical signals can be transmitted even when any of the structures of wiring 13, 13A, and 13B shown in FIG. 9A and FIG. 9B is adopted. By using annular thin metal wires, electrical resistance in that portion can be reduced. Furthermore, since the annular portion has a dual transmission path for electrical signals, there is an advantage that even if one path is broken, electrical signals can still be transmitted as long as the other path is normal.

[0057] As described with reference to FIGS. 9A and 9B, when electrically conductive portions have a ring structure or when ring structures are joined together, it is possible to achieve an effect equivalent to that of the flat electrode 12 (see FIG. 6). Furthermore, when thin metal wires are continuously connected or when ring structures of thin metal wires are continuously connected, it is possible to achieve an effect equivalent to that of the wiring 13 (see FIG. 6). That is, in a mesh structure made of thin metal wires, the electrode 12 and the wiring 13 (see FIG. 3) are formed by some of the thin metal wires being connected or not connected. That is, the electrode 12 and the wiring 13 are formed by the connected and unconnected states of the thin metal wires.

[0058] (Example of overlap between mesh structure and parallax barrier) Next, an example of overlap between the mesh structure and the parallax barrier will be described. In order to obtain the effects of the present disclosure, the relationship between the extension direction of the thin metal wires included in the mesh structure and the extension direction of the slits in the parallax barrier is important.

[0059] To facilitate understanding of the effects of the present disclosure, a comparative example will be described first. Fig. 10 is a diagram showing a comparative example of electrodes 12 formed from thin metal wires. As shown in Fig. 10, 12 electrodes 12 are formed from thin metal wires. Furthermore, wiring 13 is formed from thin metal wires.

[0060] Fig. 11 is a diagram showing a mesh structure M made up of thin metal wires 51, 52, 53, and 54 extending in the same direction as the electrodes 12 shown in Fig. 10. As shown in Fig. 11, the thin metal wires are arranged at a constant pitch P11.

[0061] Fig. 12 is a diagram showing an example of a parallax barrier. As shown in Fig. 12, a plurality of slits SL in the parallax barrier are provided at a constant pitch P12. In the comparative example, the extension direction D11 of the thin metal wires included in the mesh structure shown in Fig. 11 coincides with the extension direction D11 of the slits SL in the parallax barrier shown in Fig. 12.

[0062] Fig. 13 is a diagram showing the state in which the mesh structure shown in Fig. 11 is superimposed on the parallax barrier shown in Fig. 12. When the mesh structure shown in Fig. 11 is superimposed on the parallax barrier shown in Fig. 12, thin metal wires 52 and 53 constituting electrodes 12 or wiring 13 (see Fig. 10) in the mesh structure may block slits SL in the parallax barrier.

[0063] That is, as shown in Figure 13, when the pitch P11 of the thin metal wires and the pitch P12 of the slits SL match, the slits SL in the parallax barrier are blocked by the thin metal wires. Light does not pass through the areas where the slits SL in the parallax barrier are blocked, resulting in a dark image, which is undesirable. Even if the pitch P11 of the thin metal wires and the pitch P12 of the slits SL in the parallax barrier are different, if one of the pitches P11 and P12 is an integer multiple of the other, the extension direction D11 of the thin metal wires may match the extension direction D11 of the slits SL in the parallax barrier. In such cases, the thin metal wires may block the slits SL in the parallax barrier.

[0064] Next, the case of the present disclosure will be described. Fig. 14 is a diagram showing an example of an electrode 12 according to the present disclosure. As shown in Fig. 14, 12 electrodes 12 are configured by thin metal wires.

[0065] Fig. 15 is a diagram showing a mesh structure M made of thin metal wires extending in the same direction as the electrodes 12 shown in Fig. 14. As shown in Fig. 15, the thin metal wires are provided at a constant pitch P13.

[0066] Fig. 16 is a diagram showing an example of a parallax barrier. As shown in Fig. 16, a plurality of slits SL in the parallax barrier are provided at a constant pitch P12. In the present disclosure, the extension direction D1 of the thin metal wires included in the mesh structure shown in Fig. 15 does not match the extension direction D11 of the slits SL in the parallax barrier shown in Fig. 12. In other words, the thin metal wires included in the mesh structure and the slits SL in the parallax barrier extend in different directions.

[0067] Fig. 17 is a diagram showing the state in which the mesh structure shown in Fig. 15 is superimposed on the parallax barrier shown in Fig. 16. As shown in Fig. 17, when the mesh structure shown in Fig. 15 is superimposed on the parallax barrier shown in Fig. 16, the slits SL of the parallax barrier are less blocked than in the case shown in Fig. 13. This allows sufficient light to pass through and prevents the obtained image from becoming dark.

[0068] Furthermore, because the pitch P13 of the thin metal wires and the pitch P12 of the slits SL in the parallax barrier are different, more light is transmitted, resulting in images with good brightness. Therefore, to transmit light sufficiently, it is necessary that at least the thin metal wires and the slits SL in the parallax barrier extend in different directions. To obtain even better results, the pitch P13 of the thin metal wires and the pitch P12 of the slits SL in the parallax barrier must be different. [Explanation of symbols]

[0069] 1 Display device 10 Sensor section 11 Sensor board 12 electrodes 13 Wiring 14 Shield 15 Coverslip 20 Detector 21 Control board 22 Detection circuit 23 Processing circuit 24 Power circuit 25 Interface Circuit 31 Wiring board 40 Panel 1 42 Signal detection unit 43 A / D conversion section 44 Coordinate calculation unit 48 pixels 49 subpixels 49R 1st subpixel 49G 2nd subpixel 49B 3rd subpixel 51~54, 58, 59 Fine metal wire 68, 69 Connection 100 Display System 200 Display Panel AA detection area F. Object to be detected PB Parallax barrier section PB1, PB2 light shielding body

Claims

1. a display area for displaying an image; a parallax barrier for allowing the image output from the display area to be viewed as a parallax image; and a sensor provided over the parallax barrier; Including, the parallax barrier includes a light blocking body and a plurality of slits that are free from the light blocking body and extend in a predetermined direction to transmit light; The sensor an electrode and a wiring electrically connected to the electrode; Including, At least the electrode has a mesh structure formed by a plurality of thin metal wires extending in a predetermined direction, the wiring is composed of the thin metal wires in a connected state adjacent to the thin metal wires in a non-connected state, The extending direction of the thin metal wire and the extending direction of the slit are different from each other. Display device.

2. The plurality of slits are provided at a predetermined pitch in a predetermined direction, the plurality of thin metal wires are arranged at a predetermined pitch in a predetermined direction, The pitch of the plurality of slits and the pitch of the plurality of thin metal wires are different from each other. The display device according to claim 1 .

3. The sensor The value of the capacitance generated between the electrode and the object to be detected is detected.

3. The display device according to claim 1 or 2.

Images