JP2014077903A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress generation of a potential difference between a counter substrate and a shutter.SOLUTION: One embodiment presents a display device including: a substrate on which a plurality of light-transmitting portions and a plurality of pixel elements respectively corresponding to the plurality of light-transmitting portions are arranged; and a counter substrate having a plurality of openings respectively opposing to the plurality of light-transmitting portions. The pixel element includes: a substrate connection portion formed on the substrate; a shutter that is formed as separated from the substrate and controls a quantity of light passing through the opening and the light transmitting portion; and a spring that electrically connects the substrate connection portion and the shutter and moves the shutter. A substrate wiring line to supply a predetermined potential to the substrate connection portion is disposed on the substrate. A conductive film is disposed on a surface at the substrate side of the counter substrate. Between the substrate and the counter substrate, the conductive film and the substrate wiring line are electrically connected at a plurality of portions.

Description

  The present invention relates to an apparatus for displaying an image or the like. In particular, the present invention relates to an apparatus that displays an image or the like by adjusting a light transmission amount for each pixel element corresponding to a pixel with a shutter.

  A display device using liquid crystal is known as a device for displaying an image or the like. In such an apparatus, the direction of polarization of light transmitted through the liquid crystal sandwiched between the electrodes is controlled, and the amount of light transmitted through the polarizing plate is controlled for each pixel.

  However, a display device using liquid crystal has a problem that it takes time to change the direction of polarized light that passes through the liquid crystal, and an afterimage is recognized when an image that changes at high speed is displayed. In addition, it is necessary to transmit light through a large number of layers such as a polarizing plate, a liquid crystal layer, a color filter, and an electrode, and there is a problem in that it is difficult to obtain a bright display because the light use efficiency is reduced.

  In recent years, a display device using a mechanical shutter (hereinafter referred to as “MEMS shutter”) to which MEMS (Micro Electro Mechanical Systems) technology is applied has attracted attention. A display device using a MEMS shutter (hereinafter referred to as a “MEMS display device”) controls the amount of light passing through the shutter by opening and closing the MEMS shutter provided for each pixel at high speed, thereby adjusting the brightness of the image. It is the display device which performs.

  The MEMS display device employs a time gray scale method, and displays images by sequentially switching light from backlights such as red, green, and blue LEDs. The MEMS display device does not require a polarizing film or a color filter used for a liquid crystal display, and the light use efficiency of the backlight is about 10 times or more, and the power consumption is 1/2 or less, compared to the liquid crystal. The color reproducibility is considered to be characteristic. In addition, display of images and the like can be changed at high speed.

  For example, as an example of the MEMS display device, a shutter that moves in a direction parallel to the substrate for each pixel is provided on the opening, and a first driving beam that moves the shutter to pass light from the opening is opposed to the first. A compliant load beam and a second compliant load beam opposed to the second drive beam arranged to block light from the aperture by the shutter, and the light passing through the shutter by moving the shutter There has been proposed a display device that controls the amount of light (for example, see Patent Document 1).

JP 2008-197668 A

  However, in the conventional MEMS display device disclosed in Patent Document 1 or the like, when a potential difference is generated between the counter substrate and the shutter, the shutter is attracted to the counter substrate and the shutter sticks to the counter substrate. There is.

  As an embodiment of the present invention, a plurality of light transmission portions, a substrate on which a plurality of pixel elements are arranged corresponding to each of the plurality of light transmission portions, and a plurality of openings facing each of the plurality of light transmission portions. The display device includes a display unit having a counter substrate, wherein the pixel element is formed apart from the substrate connection unit formed on the substrate and the substrate, and passes through the opening and the light transmission unit. A shutter that controls the amount of light to be transmitted, and a spring that electrically connects the substrate connecting portion and the shutter to move the shutter, and supplies a predetermined potential to the substrate connecting portion to the substrate And a conductive film is disposed on the surface of the counter substrate, and the conductive film and the substrate wiring are electrically connected at a plurality of locations between the substrate and the counter substrate. It is connected to the Providing a display device comprising and.

  According to the present invention, it is possible to suppress the generation of a potential difference between the counter substrate and the shutter.

The perspective view and top view of the display apparatus which concern on one Embodiment of this invention The functional block diagram of the display apparatus which concerns on one Embodiment of this invention The perspective view of the MEMS shutter of the display apparatus which concerns on one Embodiment of this invention. Sectional drawing of the board | substrate and counter substrate of the display apparatus which concern on one Embodiment of this invention. The top view of the opposing board | substrate of the display apparatus which concerns on one Embodiment of this invention. Sectional drawing of the opposing board | substrate of the display apparatus which concerns on one Embodiment of this invention. Sectional drawing of the board | substrate and counter substrate of the display apparatus which concern on one Embodiment of this invention. The top view and sectional view of a counter substrate of a display device concerning one embodiment of the present invention. Sectional drawing of the opposing board | substrate of the display apparatus which concerns on one Embodiment of this invention. Sectional drawing of the opposing board | substrate of the display apparatus which concerns on one Embodiment of this invention.

  Hereinafter, modes for carrying out the present invention will be described as some embodiments. The present invention is not limited to the embodiments described below, and can be implemented with various modifications.

(Embodiment 1)
FIG. 1A shows a perspective view of a display device 100 according to an embodiment of the present invention, and FIG. 1B shows a plan view of the display device 100. The display device 100 includes a substrate 102 and a counter substrate 106. The substrate 102 includes a display portion 102a, drive circuits 102b, 102c and 102d, and a terminal portion 102e. The substrate 102 and the counter substrate 106 are bonded using a sealant or the like. Note that a backlight may be disposed on the upper surface side of the counter substrate 106 in FIG. In FIG. 1, the backlight is not shown.

  FIG. 2 shows a circuit block diagram of the display device 100. The display device 100 is supplied with an image signal and a control signal from the controller 120. The display device 100 is supplied with light from a backlight 122 controlled by the controller 120. Note that the controller 120 and the backlight 122 may be included in the display device 100.

  As illustrated in FIG. 2, the display unit 102 a includes a pixel 200 having a MEMS shutter (pixel element) 202, a pixel circuit 299, and a storage capacitor 206. The pixel circuit includes a storage capacitor and a switching element. The pixel 200 is disposed at a position corresponding to the intersection of the gate lines G1, G2,..., Gn and the data lines D1, D2,. Arranged along. Therefore, the plurality of pixels 200 are arranged in a matrix. The drive circuit 102b is a data driver and supplies a data signal (bias potential) to the switching element 204 via the data lines D1, D2,. The drive circuits 102c and 102d are gate drivers, and supply gate signals to the pixel circuit 299 via gate lines G1, G2,. The pixel circuit 299 drives the MEMS shutter 202 based on data signals supplied from the data lines D1, D2,.

  In FIG. 2, the substrate wiring 207 is arranged along the gate line. The substrate wiring 207 is a wiring for supplying a predetermined potential to the MEMS shutter (pixel element) 202. The substrate wiring 207 supplies a predetermined potential to the shutter via an anchor portion (substrate connection portion) described later and a first spring. A conductive film containing a conductive material is formed on the surface of the counter substrate 106 on the substrate 102 side. Between the substrate 102 and the counter substrate 106, the conductive film and the substrate wiring are electrically connected at a plurality of locations. Therefore, the substrate wiring 207 also supplies a predetermined potential to the conductive film.

  The substrate wiring 207 can also be disposed along the data line. Further, the substrate wiring 207 can be arranged around the display unit 102a.

  In FIG. 2, the drive circuits 102b and 102c are arranged so as to sandwich the display portion 102a. However, the present invention is not limited to this configuration.

  Next, the configuration of the MEMS shutter 202 will be described with reference to FIG. FIG. 3 is a perspective view of the MEMS shutter 202. For convenience of explanation, FIG. 3 shows one MEMS shutter 202, but the display device 100 has a plurality of MEMS shutters 202 shown in FIG. 3 arranged in a matrix on the substrate 102 as described above. Is done.

  The MEMS shutter 202 includes a shutter 210, first springs (compliant load beams) 216 and 218, second springs (drive beams) 224 and 226, and anchor portions 232, 234, and 236. Each of the first springs 216 and 218 is opposed to each of the second springs 224 and 226 to form a set. The shutter 210 has an opening 213, and the main body of the shutter 210 excluding the opening 213 serves as a light shielding portion. The substrate 102 is formed with a plurality of light transmitting portions, and the counter substrate 106 is formed with a plurality of openings through which light passes. The counter substrate 106 and the substrate 102 are arranged so as to overlap in the planar direction so that one opening of the counter substrate 106 and any one of the light transmitting portions of the substrate 102 face each other. At this time, the counter substrate 106 is bonded to the substrate 102 via a sealant or the like. Here, the opening and the light transmitting portion are opposed to each other, if there is no obstacle between the opening and the light transmitting portion, the light enters the opening perpendicular to the counter substrate 106 and tries to pass through the facing light transmitting portion. It means that light can pass through the opposing light transmission parts.

  Note that the MEMS shutter 202 described in this embodiment is merely an example of a MEMS shutter that can be used in the display device 100 of the present invention, and is not limited to the illustrated configuration as long as the MEMS shutter can be driven by a pixel circuit. Any embodiment can be used.

  One side of the shutter 210 is connected to the anchor portions 232 and 234 via the first springs 216 and 218. The anchor portions 232 and 234 have a function of supporting the shutter 210 in a state separated from the surface of the substrate 102 together with the first springs 216 and 218. The first springs 216 and 218 are made of a conductive material and have flexibility. As a result, the potential supplied to the anchor portions 232 and 242 is supplied to the first springs 216 and 218. The anchor part 232 is electrically connected to the first spring 216, and the anchor part 234 is electrically connected to the first spring 218. When, for example, a ground potential is supplied to the anchor portions 232 and 234 by the substrate wiring 207, the ground potential is also supplied to the first springs 216 and 218.

  The anchor portion 236 has a function of supporting the second springs 224 and 226 in a state of being separated from the surface of the substrate 102. The second springs 224 and 226 are also made of a conductive material. The second springs 224 and 226 are electrically connected to the anchor portion 236. As a result, the potential supplied to the anchor portion 236 is supplied to the second springs 224 and 226. A bias potential can be supplied to the anchor portion 236 via the pixel circuit 299, and thus a bias potential can be supplied to the second springs 224 and 226.

  The anchor portions 232 and 234 may be configured to supply a predetermined potential instead of the ground potential (the same applies to the anchor portions 238 and 240 when it is described below that the ground potential is supplied). is there.).

  The other side of the shutter 210 is connected to the anchor portions 238 and 240 via the first springs 220 and 222. The anchor portions 238 and 240 have a function of supporting the shutter 210 in a state separated from the surface of the substrate 102 together with the first springs 220 and 222. The first springs 220 and 222 are also made of a conductive material and have flexibility. Accordingly, by electrically connecting the anchor portions 238 and 240 to the first springs 220 and 222, respectively, when the ground potential is supplied to the anchor portions 238 and 240 by the substrate wiring 207, the ground potential is applied to the first springs 220 and 222. Supplied.

  Further, the second springs 228 and 230 are disposed so as to be surrounded by the first springs 220 and 222, and the first springs 220 and 222 are opposed to the second springs 228 and 230, respectively, to form a set. Good. In this case, the second springs 228 and 230 can also be made of a conductive material. In this case, the second springs 228 and 230 are electrically connected to the anchor portion 242. The anchor portion 242 has a function of supporting the second springs 228 and 230 so as to be separated from the surface of the substrate 102. The anchor part 242 can be electrically connected to the second springs 228 and 230. In this case, a bias potential is supplied to the anchor portion 242 via a pixel circuit or a potential supply wiring, and a bias potential is supplied to the second springs 228 and 230. The potential supply wiring is not shown in the figure.

  The shutter 210 is mechanically connected to the first springs 216, 218, 220, and 222. In this case, the shutter 210 is also made of a conductive material, is electrically connected to the first springs 216 and 218, and the potential supplied to the anchor portions 232 and 234 is supplied to the shutter 210. In addition, the shutter 210 may be mechanically and electrically connected to the first springs 220 and 222, and may further be supplied with a potential supplied to the anchor portions 238 and 240.

  The method for forming the MEMS shutter 202 is as follows. First, a first sacrificial film is formed on the substrate 102, and a part of the anchor portions 232, 234, 236, 238, 240, and 242 is formed. Next, a second sacrificial film having the same height as the top surfaces of the first springs 216, 218, 220, 222 and the second springs 224, 226, 228, 230 is formed on the first sacrificial film, Part of the portions 232, 234, 236, 238, 240, 242 is formed. A shutter 210 and anchor portions 232, 234, 236, 238, 240, and 242 are formed thereon. Thereafter, the first sacrificial film and the second sacrificial film are removed.

  In the present embodiment, as described above, a bias potential can be supplied to the anchor unit 236 via the pixel circuit 299. As a result, a bias potential is supplied to the second springs 224 and 226. Further, for example, a ground potential is supplied to the anchor portions 232 and 234 by the substrate wiring 207, and a ground potential is supplied to the first springs 216 and 218. Accordingly, when a bias potential different from the ground potential is supplied to the anchor portion 236 and a potential difference is generated between the first springs 216 and 218 and the second springs 224 and 226, the first spring 216 and the second spring 224 are The first spring 216 is attracted to the second spring 224 by electrostatic driving, and the first spring 218 and the second spring 226 are electrostatically driven to attract the first spring 218 to the second spring 226. Thereby, the shutter 210 can be moved toward the anchor portion 236.

  Similarly, a bias potential can be supplied to the anchor portion 242 via the pixel circuit 299 or the potential supply wiring. As a result, a bias potential is supplied to the second springs 228 and 230. In addition, a ground potential is supplied to the anchor portions 238 and 240 by the substrate wiring 207, and a ground potential is supplied to the first springs 220 and 222. When a potential difference is generated between the first springs 220 and 222 and the second springs 228 and 230, the first spring 220 and the second spring 228 are electrostatically driven, and the first spring 220 is attracted to the second spring 228. In addition, the first spring 222 and the second spring 230 are electrostatically driven, and the first spring 222 is attracted to the second spring 230. Thereby, the shutter 210 can be moved toward the anchor portion 242.

  An insulating material is disposed on the side surfaces of the first springs 216, 218, 220, 222 and the side surfaces of the second springs 224, 226, 228, 230. Therefore, even if the first spring 216 and the second spring 224, the first spring 218 and the second spring 226, the first spring 220 and the second spring 228, and the first spring 222 and the second spring 230 contact, Insulation between the spring and the second spring is maintained.

  In the display device 100, the shutter 210 moves parallel to the surface of the substrate 102 by the electrostatic driving described above and approaches the anchor portion 236 or the anchor portion 242. Can be positioned between. Accordingly, light supplied from the back surface of the counter substrate 106 and passing through the opening of the substrate 106 passes through the opening 213 of the shutter 210. Accordingly, light supplied from the back surface of the counter substrate 106 and transmitted through the opening of the counter substrate 106 is transmitted through the light transmitting portion of the substrate 102 and is emitted to the outside of the display device 100.

  FIG. 4 is a cross-sectional view of the display unit 102 a according to the present embodiment when cut along the substrate wiring 207. A MEMS shutter including a shutter 210, anchor portions 234 and 240, and first springs 218 and 222 is disposed on the substrate 102. A substrate wiring 401 is disposed on the substrate 102. The substrate wiring 401 is a wiring containing a conductive material. For example, a ground potential is supplied to the substrate wiring 401. Accordingly, the substrate wiring 401 and the anchor portions 234 and 240 are electrically connected, and a predetermined potential such as a ground potential supplied to the substrate wiring 401 is supplied to the shutter 210 via the first springs 218 and 222. The

  A conductive film 403 is disposed on the surface of the counter substrate 106 on the substrate 102 side. The conductive film 403 includes a conductive material, and is electrically connected to the substrate wiring 401 at a position where the plurality of conductive portions 405 and 406 made of a conductive material are disposed. Accordingly, the same potential as the potential supplied to the shutter 210 is supplied to the conductive film 403 so that the conductive film 403 and the shutter 210 have the same potential. Thereby, it is possible to prevent the attractive force or repulsive force due to the electrostatic force between the shutter 210 and the counter substrate 106 from being generated. Note that the conductive portion extends in a direction perpendicular to the substrate 102 in FIG. 4 and electrically connects the substrate wiring 401 and the conductive film 403. However, the shape is not limited to the illustrated shape, and any mode is possible. Can also be used.

  FIG. 5 is a plan view when the counter substrate 106 is observed from the substrate 102 side. A conductive film 403 is formed so as to uniformly spread on the surface of the counter substrate 106 in a portion excluding the opening 501. Alternatively, in the case where the conductive film 403 has light transmittance, the conductive film 403 is uniformly spread over the entire surface of the counter substrate 106, and the opening 501 can be observed through the conductive film 403. Also good.

  6 is a cross-sectional view of the counter substrate taken along the line AA in FIG. That is, the layer 601 is formed over the counter substrate 106, and the layer 602 is further formed. A conductive film 403 is formed using the layers 601 and 602. In FIG. 6, the layer 601 and the layer 602 have the same shape. That is, the layer 601 and the layer 602 are sequentially formed on the counter substrate 106, and the opening 501 is formed by etching.

  In order to form the conductive film 403, at least one of the layer 601 and the layer 602 includes a conductive material and has conductivity. Either or both of the conductive layer 601 and the layer 602 are electrically connected to the conductive portions 405 and 406. If the layer 602 is insulative, the layer 602 is removed and connected to the conductive portion at the position where the conductive portion is disposed.

  In addition, the material of the layer 601 preferably has a higher reflectance than the material of the layer 602. In other words, the material of the layer 602 preferably has a lower reflectance than the material of the layer 601. By setting the reflectance in this way, when the light generated from the backlight does not pass through the opening 501, it is reflected by the layer 601 and can be emitted from another opening 501, thereby displaying a bright image. be able to. Further, leakage light unnecessary for display is absorbed by the layer 602, so that a clearer image can be displayed.

  Since the conductive film 403 is formed in a film shape, the electric resistance is generally low, and when a potential is supplied to one portion of the conductive film 403, the potential immediately spreads over the entire conductive film 403. On the other hand, since electric potential is supplied to the shutter 210 from the substrate wiring 401 through the anchor portions 234 and 240 and the first springs 218 and 222, the electrical resistance between the shutter 210 and the substrate wiring 401 is the conductive film 403. Larger than For this reason, even if a potential is supplied from the end of the substrate wiring 401, the potential spreads over the entire conductive film 403 so that the potential is transmitted to the shutters of all the MEMS shutters connected to the substrate wiring 401. Will take more time. In the case where the display portion 102 a is large, even if a potential is supplied from the end portion of the substrate wiring 401, a potential distribution is instantaneously generated in the conductive film 403 on the counter substrate 106.

  Due to this delay, if there are no plurality of conductive portions, a potential difference is generated between the shutter 210 and the conductive film 403, and an attractive force or repulsive force from the counter substrate 106 is applied to the shutter 210. On the other hand, by providing a plurality of conductive portions, at least at the portion where the substrate wiring and the conductive film are connected by the conductive portions and in the vicinity thereof, the occurrence of a potential difference between the shutter 210 and the conductive film 403 is suppressed. be able to.

  At least one of the plurality of conductive portions is preferably disposed at a substantially central position of the substrate wiring, and therefore is preferably disposed at a substantially central position of the display portion 102a. Further, the conductive portion 406 may be disposed one-on-one with the shutter 210. Alternatively, in general, one conductive portion 406 may be arranged for N shutters 210. In this manner, by arranging the conductive portion 406, a potential is supplied from the substrate wiring 401 to the conductive film 403 via the conductive portion 406, so that a potential difference between the shutter 210 and the conductive film 403 is suppressed. can do.

  The delay described above increases as the display unit 102a increases. Therefore, this embodiment is effective for increasing the size of the display device.

  In addition, as described above, when the ground potential is supplied to the shutter 210 and the conductive film 403, the ground potential can be kept constant by increasing the capacity of the power supply circuit that supplies the ground potential. Increasing the capacity of the power supply circuit increases the scale of the power supply circuit.

  Therefore, by providing the conductive portion 406, the scale of the power supply circuit can be reduced, and the display device can be reduced in size and weight.

  The substrate wiring 401 may be formed in a film shape in order to increase the cross-sectional area. Thereby, the electrical resistance of the substrate wiring 401 can be reduced. By reducing the electrical resistance of the substrate wiring 401, it is possible to further suppress the occurrence of a potential difference between the shutter 210 and the conductive film 403.

(Embodiment 2)
As Embodiment 2 of the present invention, a mode in which the conductive film facing the shutter is divided into a plurality of regions will be described.

  FIG. 7 is a cross-sectional view of the display unit 102a of the display device according to the present embodiment. As shown in FIG. 7, the conductive film 701 is divided into a plurality of regions. In addition, a conductive portion 702 is disposed in each divided region and is electrically connected to the substrate wiring 401. As a result, a potential is supplied from the substrate wiring 401 to each divided region. When the conductive film 701 is divided and a potential is supplied to each divided region, the potential difference between the divided region of the shutter 210 and the conductive film facing the shutter 210 can be further reduced.

  FIG. 8A is a plan view of the display device according to this embodiment when the counter substrate 106 is observed from the direction where the substrate 102 is disposed. In FIG. 8A, the conductive film 701 is divided into regions including the opening 801 of the counter substrate. In FIG. 8, each divided region of the conductive film 701 surrounds one opening 801, and the opening 801 and the divided region of the conductive film 701 correspond one-to-one. However, the present embodiment is not limited to this, and the plurality of openings 801 may be surrounded by one of the regions where the conductive film 701 is divided.

  FIG. 8B shows in more detail the cross-sectional view of the counter substrate along the BB cross-sectional line in FIG. In FIG. 8B, the layer 802 is formed in a portion excluding the opening 801. A portion where the layer 802 is removed corresponds to the opening 801. The layer 802 is formed using an insulating material.

  The layer 803 corresponds to the conductive film divided into a plurality of regions. The layer 803 is removed at a portion where the layer 802 is removed to form an opening 801. In addition, although the layer 802 is not removed, the portion from which the layer 803 is removed corresponds to the conductive film partition 804 divided into a plurality of regions. Each region is electrically insulated by the partition 804.

  In addition, when the reflectances of the material of the layer 802 and the layer 803 are compared, the reflectance of the material of the layer 802 is preferably larger than the reflectance of the material of the layer 803. In other words, the reflectance of the material of the layer 803 is preferably smaller than the reflectance of the material of the layer 802.

  FIG. 9 shows still another form of the present embodiment. In FIG. 9, a layer 901 that is a layer close to the counter substrate 106 has conductivity. That is, the layer 901 is removed at the position of the opening 801, and is removed at the second opening 903 in accordance with the partition 804 of the conductive film 701. The layer 902 is formed using an insulating material. The layer 902 is formed over the layer 901 after the second opening 903 is formed in the layer 901, and then the opening 801 is formed in the layer 902 and the layer 901.

  By forming the layer 901 with a conductive material and the layer 902 with an insulating material in this manner, a material different from that in FIG. 7 can be selected.

  FIG. 10 shows still another form of the present embodiment. In FIG. 10, the layer 1001 and the layer 1002 make the layer 1001 and the layer 1002 the same division by the opening 701 as shown in FIG. In FIG. 10, the layers 1001 and 1002 are made of insulating materials. In addition, the reflectance of the layer 1001 is preferably larger than the reflectance of the layer 1002.

  After the opening 801 is provided in the layer 1001 and the layer 1002, a transparent conductive film made of a material having conductivity and transparency is formed over the layer 1001 and the layer 1002, and the opening 801, the layer 1001, and the layer 1002 are formed. And cover. For example, an ITO film is formed. Then, the transparent conductive film is divided into a plurality of regions. In this manner, by using a transparent conductive film, an insulating material can be used for the layers 1001 and 1002 while maintaining light passing through the opening 801, and an appropriate material can be selected.

  102 substrate, 106 counter substrate, 401 substrate wiring, 403 conductive film, 405 conductive portion, 406 conductive portion, 218 first spring, 222 first spring, 234 anchor portion, 240 anchor portion, 210 shutter

Claims (10)

A display unit comprising: a plurality of light transmission parts; a substrate on which a plurality of pixel elements are arranged corresponding to each of the plurality of light transmission parts; and a counter substrate having a plurality of openings facing each of the plurality of light transmission parts. A display device comprising:
The pixel element is
A substrate connecting portion formed on the substrate;
A shutter that is formed apart from the substrate and controls the amount of light passing through the opening and the light transmission part;
A spring for electrically connecting the substrate connecting portion and the shutter and moving the shutter;
Have
A substrate wiring for supplying a predetermined potential to the substrate connecting portion is disposed on the substrate,
The counter substrate has a conductive film disposed on a surface on the substrate side,
The display device, wherein the conductive film and the substrate wiring are electrically connected at a plurality of locations between the substrate and the counter substrate.   The display device according to claim 1, wherein at least one of the plurality of locations is located at a substantially center of the display unit. The pixel element is disposed along a gate line to which a potential is supplied by a gate driver,
The display device according to claim 1, wherein the substrate wiring is disposed along the gate line.   The display device according to claim 1, wherein the plurality of locations are arranged in one-to-one correspondence with the pixel elements.   5. The conductive film according to claim 1, wherein the conductive film is divided into a plurality of electrically isolated regions, and each of the plurality of regions is connected to the substrate wiring at any one of the plurality of locations. The display apparatus in any one.   The display device according to claim 5, wherein each of the plurality of regions is a region surrounding any of the plurality of openings.   The display device according to claim 1, wherein the conductive film is disposed on the counter substrate with an insulating film having a higher light reflectance than the conductive film.   The display device according to claim 1, wherein the conductive film is covered with an insulating film having a smaller light reflectance than the conductive film.   The display device according to claim 1, wherein the conductive film is made of a transparent material and covers the opening.   10. The conductive film according to claim 9, wherein the conductive film is formed after the first insulating film is formed on the counter substrate and the second insulating film having a reflectance lower than that of the first insulating film is formed. The display device described.

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