Display device with sensor

Abstract

The present invention provides a display device with a sensor that makes the sensor wiring connected to the detection electrode inconspicuous. The display device with a sensor includes a plurality of detection electrodes, a plurality of sensor wirings, a plurality of pixels, a plurality of scanning lines, and a plurality of signal lines on a first substrate. The plurality of detection electrodes are arranged in a matrix in a first direction and a second direction. A plurality of sensor wirings are connected to one detection electrode. A pixel includes a plurality of sub-pixels. A plurality of scanning lines scans a switching element and extends in the first direction. A plurality of signal lines are connected to the switching element and extend in the second direction. A sensor wiring overlaps a signal line. A portion of the sensor wiring has a connection portion connected to the detection electrode. A first pixel including a connection portion and a second pixel not including a connection portion are alternately arranged in the first direction, and the first pixel and the second pixel are alternately arranged in the second direction.

Description

[0001] This application is a divisional application of the invention patent application with application date of February 21, 2019, application number 201910131127.X, and invention name “Display device with sensor”. Technical Field

[0002] The present invention relates to a display device with a sensor. Background Art

[0003] Patent Document 1 describes a display device with a capacitance sensor. The capacitance sensor includes a plurality of detection electrodes and a plurality of sensor wirings. The plurality of sensor wirings are formed of metal and are connected one-to-one to the plurality of detection electrodes.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2015-143933 Summary of the Invention

[0007] Problems to be solved by the invention

[0008] To minimize waveform degradation of the drive signal supplied to the detection electrodes, it is desirable to electrically connect multiple sensor wires to the detection electrodes to reduce wiring resistance. However, the sensor wires connected to the detection electrodes are located within the display area. Therefore, if the number of sensor wires connected to the detection electrodes increases, the sensor wires may become visible.

[0009] An object of the present invention is to provide a display device with a sensor in which sensor wiring connected to a detection electrode is inconspicuous.

[0010] Technical solutions to solve problems

[0011] A display device with a sensor in one embodiment includes: a first substrate; a plurality of detection electrodes, which are arranged in a matrix in a first direction and a second direction intersecting the first direction above the first substrate; a plurality of sensor wirings, which are connected to one of the detection electrodes; a plurality of pixels, which include a plurality of sub-pixels and are arranged in a matrix in the first direction and the second direction; a plurality of scanning lines extending in the first direction, which scan the switching elements of the sub-pixels; and a plurality of signal lines extending in the second direction, which are connected to the switching elements of the sub-pixels, one of the sensor wirings overlaps with one of the signal lines, a portion of the sensor wiring has a connection portion connected to the corresponding detection electrode, the pixels include a first pixel including the connection portion and a second pixel not including the connection portion, the first pixel and the second pixel are alternately arranged in the first direction, and the first pixel and the second pixel are alternately arranged in the second direction.

[0012] The present invention also includes the following technical solutions:

[0013] (1) A display device with a sensor, comprising:

[0014] a first substrate;

[0015] a plurality of detection electrodes arranged in a matrix above the first substrate in a first direction and in a second direction intersecting the first direction;

[0016] a plurality of sensor wirings connected to one of the detection electrodes;

[0017] a plurality of pixels, each comprising a plurality of sub-pixels, and arranged in a matrix in the first direction and the second direction;

[0018] a plurality of scanning lines extending in the first direction, which scan the switching elements of the sub-pixels; and

[0019] a plurality of signal lines extending in the second direction, connected to the switching elements of the sub-pixels;

[0020] One of the sensor wiring lines overlaps with one of the signal lines,

[0021] A portion of the sensor wiring has a connection portion connected to the corresponding detection electrode.

[0022] The pixels include a first pixel and a second pixel, the first pixel includes the connection portion, the second pixel does not include the connection portion, and the first pixels and the second pixels are alternately arranged in the first direction.

[0023] The first pixels and the second pixels are alternately arranged in the second direction.

[0024] (2) In the display device with a sensor described in (1) above,

[0025] A portion of the sensor wiring has an expanded portion having a width in the first direction wider than a main line of the sensor wiring.

[0026] (3) In the display device with a sensor described in (2) above,

[0027] The detection electrode is arranged above the sensor wiring via an insulating film in a third direction perpendicular to the first direction and the second direction.

[0028] The insulating film has a first contact hole, and the first contact hole has the connection portion that connects the corresponding detection electrode and the widened portion.

[0029] (4) In the display device with a sensor described in (3) above,

[0030] The first contact hole is one of a plurality of first contact holes,

[0031] The plurality of first contact holes are provided between one of the detection electrodes and one of the sensor wirings.

[0032] (5) In the display device with a sensor according to any one of (2) to (4),

[0033] The widening portion is arranged between two adjacent scanning lines in the second direction.

[0034] (6) In the display device with a sensor described in (2) above,

[0035] In the first pixel, each of the sub-pixels includes the widened portion.

[0036] (7) In the display device with a sensor described in (6),

[0037] The widening portion is one of a plurality of widening portions whose width in the first direction is wider than the main line of the sensor wiring in a portion. In one of the first pixels, one of the plurality of widening portions is connected to the corresponding detection electrode as the connecting portion, and the other widening portions are set to be non-connected with the corresponding detection electrode.

[0038] (8) In the display device with a sensor described in (7),

[0039] Comparing the adjacent detection electrodes, the number of connections between the widened portions and the detection electrodes per unit area is the same.

[0040] (9) In the display device with a sensor described in (8),

[0041] The first pixel is one of a plurality of first pixels including the connection portion, and the second pixel is one of a plurality of second pixels not including the connection portion.

[0042] The first pixel has a first sub-pixel, a second sub-pixel and a third sub-pixel,

[0043] Three first pixels are arranged in the first direction or the second direction with the second pixel interposed therebetween, and the three first pixels include:

[0044] The first pixel has the connecting portion in the first sub-pixel;

[0045] The first pixel having the connection portion in the second sub-pixel; and

[0046] The first pixel includes the connection portion in the third sub-pixel.

[0047] (10) In the display device with a sensor described in (9),

[0048] The sensor wiring having the widened portion in the second sub-pixel is divided between the plurality of detection electrodes.

[0049] (11) In the display device with a sensor described in (10),

[0050] The sensor wiring having the widened portion in the first sub-pixel extends across the plurality of detection electrodes.

[0051] The sensor wiring having the widened portion in the second sub-pixel is cut off between the plurality of detection electrodes.

[0052] The sensor wiring having the widened portion in the third sub-pixel extends across the plurality of detection electrodes.

[0053] (12) In the display device with a sensor described in (3) above,

[0054] The sub-pixel has a pixel electrode, a relay electrode connecting the pixel electrode and the switching element, and a second contact hole for connecting the relay electrode and the pixel electrode, wherein the first contact hole and the second contact hole are not arranged in a straight line.

[0055] (13) In the display device with a sensor described in (12),

[0056] The second contact hole is one of a plurality of second contact holes,

[0057] Two of the second contact holes of the plurality of sub-pixels included in one pixel are arranged on a straight line, and the second contact holes of the other sub-pixels are located at positions deviated from the straight line.

[0058] (14) In the display device with a sensor described in (5) above,

[0059] The sensor-equipped display device further includes a second substrate facing the first substrate, and a liquid crystal layer between the first substrate and the second substrate.

[0060] The second substrate includes a light shielding layer having a plurality of first portions extending in the first direction and a plurality of second portions extending in the second direction, wherein the light shielding layer surrounds the opening of the sub-pixel.

[0061] The widened portion does not overlap with the first portion of the light shielding layer.

[0062] (15) In the display device with a sensor described in (14),

[0063] At least a portion of the widened portion overlaps with the second portion,

[0064] The width of the widened portion in the first direction is wider than the width of the second portion in the first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 This is an exploded perspective view showing the display device according to Embodiment 1.

[0066] Figure 2 FIG. 1 is a schematic top view of an array substrate.

[0067] Figure 3 This is a circuit diagram showing the pixel arrangement in the display area according to the first embodiment.

[0068] Figure 4 FIG. 1 is a plan view illustrating a detection electrode in a schematic plan view of a pixel.

[0069] Figure 5 FIG. 1 is a plan view illustrating a pixel electrode in a schematic plan view of a pixel.

[0070] Figure 6 It is a top view for explaining a switching element.

[0071] Figure 7 It is an explanation Figure 6 A partial cross-sectional view of section VII-VII'.

[0072] Figure 8 It is an explanation Figure 4 A partial cross-sectional view of section VIII-VIII'.

[0073] Figure 9 This is an explanatory diagram for explaining the widened portion of the sensor wiring.

[0074] Figure 10 It is an explanation Figure 9 Partial cross-sectional view of the XX' section.

[0075] Figure 11 It is an explanation Figure 9 A partial cross-sectional view of the XI-XI' section.

[0076] Figure 12 It is an explanation Figure 9 A partial cross-sectional view of section XII-XII'.

[0077] Figure 13 This is an explanatory diagram for explaining the widened portion of the sensor wiring.

[0078] Figure 14 This is an explanatory diagram for explaining the connection positions between the sensor wiring and the detection electrodes.

[0079] Figure 15 This is a timing waveform chart showing an operation example of the display device according to the first embodiment.

[0080] Figure 16 This is a plan view for explaining a switching element according to the second embodiment.

[0081] Figure 17 This is a schematic diagram for explaining sub-pixels in the second embodiment.

[0082] Description of Reference Numerals

[0083] 10 first insulating substrate

[0084] 15 Fifth insulating film

[0085] 16 Sixth insulating film

[0086] 20 second insulating substrate

[0087] AL1 first orientation film

[0088] AL2 second orientation film

[0089] BE surrounding areas

[0090] BM light shielding layer

[0091] CB1 first pattern

[0092] CB2 second pattern

[0093] CE-G Edge Cabling

[0094] CE, CE1, CE2, CE3, CE4 detection electrodes

[0095] CEA, CEB auxiliary detection electrode

[0096] CEP primary detection electrode

[0097] DA display area

[0098] G1, G2, G3, GL scan lines

[0099] Pd display period

[0100] PE1, PE2, PE3 pixel electrodes

[0101] Pix

[0102] PNL display device

[0103] PT testing period

[0104] PT1 First connection area

[0105] PT2 Second connection area

[0106] PT3 Third Connection Area

[0107] PTN non-connected area

[0108] RE1, RE2, RE3 relay electrodes

[0109] S1, S2, S3, SL signal lines

[0110] SPix, SPix1, SPix2, SPix3, SPix13 sub-pixels

[0111] SUS1 array substrate

[0112] SUS2 counter substrate

[0113] TCE1, TCE2, TCE3 widening section

[0114] TH contact hole

[0115] TL, TL1, TL2, TL3 sensor wiring

[0116] TrD1, TrD2, TrD3 switching elements DETAILED DESCRIPTION

[0117] The form (embodiment) for implementing the present invention is described in detail with reference to the accompanying drawings. The present disclosure is not limited to the contents described in the following embodiments. In addition, the constituent elements described below include constituent elements that can be easily thought of by those skilled in the art and constituent elements that are actually the same as them. Moreover, the constituent elements described below can be appropriately combined. It should be noted that the disclosure is always just an example, and appropriate changes that can be easily thought of by those skilled in the art while retaining the gist of the present disclosure are of course also included in the scope of the present disclosure. In addition, the drawings make the description clearer, so there are cases where the width, thickness, shape, etc. of each part are schematically shown compared to the actual form, which is always just an example and does not limit the interpretation of the present disclosure. In addition, in the present disclosure and the figures, the same figure marks are marked for the elements that are the same as the aforementioned elements with respect to the existing figures, and the detailed description is sometimes appropriately omitted.

[0118] (Implementation Method 1)

[0119] Figure 1 1 is an exploded perspective view showing the display device of Embodiment 1. Figure 1 As shown, the display device with sensor PNL includes an array substrate SUS1 and a counter substrate SUS2. Figure 1 As shown, in the sensor-equipped display device PNL, a peripheral area BE is provided outside the display area DA. The display area DA is formed into a quadrilateral shape, but the outer shape of the display area DA is not limited. For example, the display area DA may have a notch, or the display area DA may have another polygonal shape, or may have another shape such as a circle or an ellipse.

[0120] In this embodiment, the first direction X is a direction along the short side of the display area DA. The second direction Y is a direction intersecting (or orthogonal to) the first direction X. Without limitation, the second direction Y may intersect the first direction X at an angle other than 90°. The plane defined by the first direction X and the second direction Y is parallel to the surface of the array substrate SUS1. Furthermore, a third direction Z, which is orthogonal to the first direction X and the second direction Y, is the thickness direction of the array substrate SUS1.

[0121] The display area DA is the area for displaying images and is the area overlapping with multiple pixels Pix. The peripheral area BE represents the area inside the periphery of the array substrate SUS1 and outside the display area DA. It should be noted that the peripheral area BE can be a frame surrounding the display area DA. In this case, the peripheral area BE can also be referred to as a frame area.

[0122] The display area DA that displays an image includes a sensor area included in the detection device that detects electrostatic capacitance. Figure 1 As shown, a plurality of detection electrodes CE are arranged in a matrix in the display area DA in the first direction X and the second direction Y. Each detection electrode CE is schematically shown as a rectangle or square in plan view; the detailed shape of the detection electrodes CE will be described later. The detection electrodes CE are formed of a light-transmitting conductive material such as ITO (Indium Tin Oxide).

[0123] like Figure 1 As shown, peripheral wiring CE-G and integrated circuit CP are provided in the peripheral area BE on one side of the array substrate SUS1. For example, peripheral wiring CE-G is continuously provided along the long side and the short side of the display area DA, surrounding the display area DA.

[0124] The display device with a sensor PNL is a display device in which a sensor region is integrated with the display region DA. Specifically, in the display device with a sensor PNL, a portion of the components in the display region DA serves as the detection electrodes CE in the sensor region.

[0125] Figure 2 FIG is a schematic top view of the array substrate. Figure 2 As shown, the detection electrodes CE are divided into a matrix pattern by slits SPB in the first direction X and the second direction Y. Connecting circuits MP and integrated circuits CP are provided on the short sides of the peripheral area BE. Furthermore, a flexible substrate (not shown) is connected to the short sides of the peripheral area BE. It should be noted that the configuration of the connecting circuits MP and integrated circuit CP is not limited to this; they may also be provided on a control substrate and / or flexible substrate external to the module, for example.

[0126] The detection electrodes CE are electrically connected to the integrated circuit CP via sensor lines TL and connection circuits MP. The plurality of sensor lines TL are electrically connected to each of the plurality of detection electrodes CE arranged in the display area DA and are led out to the peripheral area BE. Each of the plurality of sensor lines TL extends along the second direction Y, and the plurality of sensor lines TL are arranged in a row in the first direction X. For example, a drive circuit built into the integrated circuit CP is connected to the plurality of detection electrodes CE via the connection circuits MP and sensor lines TL arranged in the peripheral area BE.

[0127] The contact hole TH has a connection portion CT (see Figures 10 to 12 ), the connection portion CT electrically connects the detection electrode CE and the sensor wiring TL overlapping with the detection electrode CE. Figure 2As will be described later, in reality, the sensor wiring TL is a bundle of a plurality of wirings that are routed into the display area DA.

[0128] The display device with sensor PNL further includes a connection circuit MP. The connection circuit MP is provided between the detection electrode CE and the integrated circuit CP. The connection circuit MP is based on a control signal Vsc1 (see Figure 15 ) is a circuit for switching the connection and disconnection between the detection electrode CE and the integrated circuit CP, which are the objects of detection driving. The connection circuit MP has an analog front end.

[0129] Figure 3 1 is a circuit diagram showing the arrangement of pixels in the display area of ​​Embodiment 1. Hereinafter, the plurality of scanning lines G1, G2, and G3 are sometimes collectively referred to as GL. The plurality of signal lines S1, S2, and S3 are sometimes collectively referred to as signal lines SL. Figure 3 The switching elements TrD1, TrD2, TrD3, signal lines SL, scanning lines GL, etc. of the sub-pixels SPix1, SPix2, and SPix3 are shown. The signal lines S1, S2, and S3 are used to supply power to the pixel electrodes PE1, PE2, and PE3 (see FIG. Figure 4 ) provides pixel signal VPix (refer to Figure 15 The scanning lines G1, G2, and G3 are wirings for supplying gate signals for driving the switching elements TrD1, TrD2, and TrD3.

[0130] Figure 1 The pixels Pix in the display area DA shown include the following Figure 3 As shown in FIG5 , a plurality of sub-pixels SPix1, SPix2, and SPix3 are arranged in a matrix. Hereinafter, the plurality of sub-pixels SPix1, SPix2, and SPix3 are sometimes collectively referred to as sub-pixels SPix. The sub-pixels SPix1, SPix2, and SPix3 respectively include switching elements TrD1, TrD2, and TrD3 and the capacitance of the liquid crystal layer LC. The switching elements TrD1, TrD2, and TrD3 are composed of thin film transistors, and in this example, are composed of n-channel MOS (Metal Oxide Semiconductor) type TFTs. A sixth insulating film 16 (see FIG5 ) is provided between the pixel electrodes PE1, PE2, and PE3 described later and the detection electrode CE. Figure 8 ), formed by them Figure 3 The holding capacitor Cs is shown.

[0131] about Figure 3The color filters CFR, CFG, and CFB shown in the figure are colored so that, for example, three color regions of red (R), green (G), and blue (B) are periodically arranged. The three color regions of R, G, and B are grouped together with the above-mentioned Figure 3 The sub-pixels SPix1, SPix2, and SPix3 shown are associated with each other. The sub-pixels SPix1, SPix2, and SPix3 corresponding to the three color regions constitute a pixel Pix as a group. It should be noted that the color filter may also include color regions of four or more colors.

[0132] Figure 4 FIG. 1 is a plan view illustrating a detection electrode in a schematic plan view of a pixel. Figure 5 FIG. 1 is a top view illustrating a pixel electrode in a schematic top view of a pixel. Figure 6 It is a top view for explaining a switching element. Figure 7 It is an explanation Figure 6 A partial cross-sectional view of section VII-VII'. Figure 8 It is an explanation Figure 4 A partial cross-sectional view of section VIII-VIII'. Figure 9 This is an explanatory diagram for explaining the widened portion of the sensor wiring. Figure 10 It is an explanation Figure 9 Partial cross-sectional view of the XX' section. Figure 11 It is an explanation Figure 9 A partial cross-sectional view of the XI-XI' section. Figure 12 It is an explanation Figure 9 A partial cross-sectional view of section XII-XII'. Figure 13 This is an explanatory diagram for explaining the widened portion of the sensor wiring. Figure 14 This is an illustration for explaining the connection position of the sensor wiring and the detection electrode. Figures 1 to 14 A specific display device according to Embodiment 1 will be described.

[0133] like Figure 8 As shown, a plurality of signal lines S1, S2, S3, a plurality of pixel electrodes PE1, PE2, PE3, a plurality of detection electrodes CE, and a plurality of sensor wirings TL1, TL2, TL3 are formed above the first insulating substrate 10. Hereinafter, the plurality of sensor wirings TL1, TL2, TL3 are sometimes collectively referred to as sensor wirings TL. Figure 4 As shown, the scanning lines G1 to G3 extend along the first direction X and are arranged at equal intervals in the second direction Y. Figure 8 It appears in the middle but is also formed above the first insulating substrate 10.

[0134] exist Figure 4 and Figure 5, the direction intersecting the second direction Y at an acute angle counterclockwise is defined as direction D1, and the direction intersecting the second direction Y at an acute angle clockwise is defined as direction D2. It should be noted that the angle θ1 formed by the second direction Y and the direction D1 is substantially the same as the angle θ2 formed by the second direction Y and the direction D2. The signal lines S1 to S3 extend substantially along the second direction Y and are arranged at equal intervals in the first direction X. In the illustrated example, the signal lines S1 to S3 extend in the direction D1 between the scan line G1 and the scan line G2, and extend in the direction D2 between the scan line G2 and the scan line G3. Looking down at the XY plane, these scan lines G1 to G3 and the signal lines S1 to S3 intersect with each other.

[0135] like Figure 6 As shown, switching element TrD1 is located near the intersection of scan line G2 and signal line S1, and is electrically connected to scan line G2 and signal line S1. Switching element TrD2 is located near the intersection of scan line G2 and signal line S2, and is electrically connected to scan line G2 and signal line S2. Switching element TrD3 is located near the intersection of scan line G2 and signal line S3, and is electrically connected to scan line G2 and signal line S3.

[0136] like Figure 5 As shown, a plurality of pixel electrodes PE1, PE2, and PE3 are arranged at intervals in the first direction X. The pixel electrode PE1 is located between two signal lines. The pixel electrode PE1 includes a contact portion PA1, an electrode portion PB1, and a connecting portion PC1. The contact portion PA1 is connected to the switching element TrD1 (see FIG. 1 ). Figure 6 ) is electrically connected. The electrode portion PB1 extends from the contact portion PA1 to the side closer to the scanning line G1 as the other side relative to the scanning line G2. The electrode portion PB1 may also be called a strip electrode, a linear electrode, a comb electrode, etc. Figure 5 In the embodiment, one pixel electrode PE1 has two electrode portions PB1. The two electrode portions PB1 are connected to a contact portion PA1. These electrode portions PB1 are arranged at intervals in a first direction X. A connecting portion PC1 is connected to the ends of the two electrode portions PB1. Thus, even if a portion of one electrode portion PB1 is disconnected, a pixel potential can be supplied to one electrode portion PB1 from the other electrode portion PB1 via the connecting portion PC1.

[0137] It should be noted that the shape of the pixel electrode PE1 is not limited to Figure 5 For example, the connection portion PC1 may be omitted, and the number of electrode portions PB1 may be 3 or 4 instead of two.

[0138] The pixel electrode PE2 is also formed in a shape substantially the same as that of the pixel electrode PE1. The pixel electrode PE2 is located between two signal lines. The pixel electrode PE2 includes a contact portion PA2, an electrode portion PB2, and a connecting portion PC2. The contact portion PA2 is connected to the switching element TrD2 (see FIG. 1 ). Figure 6 The electrode portion PB2 extends from the contact portion PA2 toward the scanning line G1.

[0139] The pixel electrode PE3 is also formed in a shape substantially the same as that of the pixel electrode PE1. The pixel electrode PE3 is located between two signal lines. The pixel electrode PE3 includes a contact portion PA3, an electrode portion PB3, and a connecting portion PC3. The contact portion PA3 is connected to the switching element TrD3 (see FIG. 1 ). Figure 6 The electrode portion PB3 extends from the contact portion PA3 toward the scanning line G1.

[0140] Electrode portions PB1, PB2, and PB3 all extend in the same direction, parallel to direction D1. Electrode portions PB1, PB2, and PB3 all extend from their respective contact portions toward scan line G1. It should be noted that the pixel electrode between scan lines G2 and G3 also has the same structure as that from pixel electrode PE1 to pixel electrode PE3, but the electrode portions extend along direction D2.

[0141] like Figure 4 As shown, the detection electrode CE includes a main detection electrode CEP, an auxiliary detection electrode CEA, and an auxiliary detection electrode CEB. The main detection electrode CEP is located in the display area DA (refer to FIG. Figure 1 ) is formed over substantially the entire area of ​​the subpixel. That is, the subpixel includes pixel electrodes PE1, PE2, and PE3, and a main detection electrode CEP (detection electrode CE) is provided in an area overlapping with the pixel electrodes PE1, PE2, and PE3. When viewed from above the XY plane, the main detection electrode CEP overlaps with the pixel electrodes PE1, PE2, and PE3, the signal lines S1, S2, and S3, and the sensor lines TL1 and TL2, but does not overlap with the scanning lines G1, G2, and G3.

[0142] like Figure 4 As shown, the auxiliary detection electrodes CEA extend in the second direction Y and electrically connect adjacent primary detection electrodes CEP in the second direction Y. When viewed from above the XY plane, the auxiliary detection electrodes CEA overlap with the scan lines G1, G2, and G3, the signal line S2, and the sensor wiring TL2, but do not overlap with the pixel electrodes PE1, PE2, and PE3, the signal lines S1 and S3, and the sensor wiring TL1 and TL3. Without the auxiliary detection electrodes CEA, a gap SPB would appear between adjacent primary detection electrodes CEP in the second direction Y.

[0143] like Figure 4As shown, the auxiliary detection electrodes CEB extend in the first direction X and electrically connect the adjacent main detection electrodes CEP in the first direction X. Figure 4 As shown, if there were no secondary detection electrodes CEB between adjacent primary detection electrodes CEP in the first direction X, a gap SPB would appear. When viewed from above the XY plane, the secondary detection electrode CEB overlaps with the signal line S3, the sensor wiring TL3, and the widened portion TCE3, but does not overlap with the pixel electrodes PE1, PE2, and PE3, the scan lines G1, G2, and G3, the signal lines S1 and S2, and the sensor wiring TL1 and TL2. The secondary detection electrode CEB overlaps with the widened portion TCE3 and forms a gap SPA, which reduces the difference in visual recognition compared to the gap SPB between adjacent detection electrodes CE in the first direction X.

[0144] As described above, the detection electrode CE includes a main detection electrode CEP and auxiliary detection electrodes CEA and CEB. The main detection electrode CEP is island-shaped. Adjacent main detection electrodes CEP in the first direction X or the second direction Y are electrically connected via the auxiliary detection electrode CEA or CEB. As a result, the detection electrode CE can have an area of ​​any size.

[0145] In a plan view of the XY plane, the plurality of sensor wirings TL1 , TL2 , and TL3 overlap with the signal lines S1 , S2 , and S3 , respectively, and extend in parallel with these signal lines.

[0146] exist Figure 8 In the present invention, the array substrate SUS1 is based on a light-transmitting first insulating substrate 10, such as a glass substrate or a resin substrate. The array substrate SUS1 includes a first insulating film 11, a second insulating film 12, a third insulating film 13, a fourth insulating film 14, a fifth insulating film 15, a sixth insulating film 16, signal lines S1-S3, pixel electrodes PE1-PE3, a detection electrode CE, a first alignment film AL1, and the like on the side of the first insulating substrate 10 opposite the counter substrate SUS2. In the following description, the direction from the array substrate SUS1 toward the counter substrate SUS2 is referred to as "upward" or simply "up."

[0147] A first insulating film 11 is located on the first insulating substrate 10. A second insulating film 12 is located on the first insulating film 11. A third insulating film 13 is located on the second insulating film 12. Signal lines S1 to S3 are located on the third insulating film 13. A fourth insulating film 14 is located on the third insulating film 13 and covers the signal lines S1 to S3.

[0148] The sensor wirings TL1, TL2, and TL3 are located on the fourth insulating film 14. The sensor wirings TL1, TL2, and TL3 are formed from a metal material containing any one of Al, Mo, and W, having a lower resistance than the detection electrode CE. Furthermore, the sensor wirings TL1, TL2, and TL3 face the signal lines S1, S2, and S3 across the fourth insulating film 14. In other words, the sensor wirings TL1, TL2, and TL3 overlap the signal lines S1, S2, and S3. The sensor wirings TL1, TL2, and TL3 are covered by the fifth insulating film 15. The first insulating film 11, the second insulating film 12, the third insulating film 13, and the sixth insulating film 16 are formed from a light-transmitting inorganic material, such as silicon oxide or silicon nitride. The fourth insulating film 14 and the fifth insulating film 15 are formed from a light-transmitting resin material and have a thickness greater than that of other insulating films formed from inorganic materials. However, the fifth insulating film 15 may also be formed from an inorganic material.

[0149] The detection electrode CE is located on the fifth insulating film 15. Figure 8 In FIG, the detection electrode CE faces the sensor lines TL1 and TL2 via the fifth insulating film 15. Figure 8 In FIG. 1 , the slit SPA of the detection electrode CE is located directly above the sensor line TL3. The detection electrode CE is covered with a sixth insulating film 16. The sixth insulating film 16 is formed of a light-transmitting inorganic material such as silicon oxide or silicon nitride.

[0150] The pixel electrodes PE1-PE3 are located on the sixth insulating film 16 and face the detection electrode CE via the sixth insulating film 16. The pixel electrodes PE1-PE3 and the detection electrode CE are formed of a light-transmitting conductive material such as ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide). The pixel electrodes PE1 to PE3 are covered by a first alignment film AL1, which is also covered by the sixth insulating film 16.

[0151] The counter substrate SUS2 is based on a light-transmitting second insulating substrate 20, such as a glass substrate or a resin substrate. The counter substrate SUS2 includes a light-shielding layer BM, color filters CFR, CFG, and CFB, an overcoat layer OC, and a second alignment film AL2 on the side of the second insulating substrate 20 opposite the array substrate SUS1.

[0152] like Figure 8 As shown, the light shielding layer BM is located on the side of the second insulating substrate 20 opposite to the array substrate SUS1. Figure 5As shown, the light shielding layer BM defines openings AP facing the pixel electrodes PE1 to PE3 , respectively. The light shielding layer BM is formed of a black resin material and / or a light shielding metal material.

[0153] Color filters CFR, CFG, and CFB are located on the side of the second insulating substrate 20 opposite the array substrate SUS1, with their respective ends overlapping the light shielding layer BM. The color filter CFR faces the pixel electrode PE1. The color filter CFG faces the pixel electrode PE2. The color filter CFB faces the pixel electrode PE3. In one example, the color filters CFR, CFG, and CFB are formed of resin materials colored red, green, and blue, respectively.

[0154] The overcoat layer OC covers the color filters CFR, CFG, and CFB. The overcoat layer OC is formed of a light-transmitting resin material. The second alignment film AL2 covers the overcoat layer OC. The first alignment film AL1 and the second alignment film AL2 are formed of a material exhibiting horizontal alignment, for example.

[0155] As described above, the counter substrate SUS2 includes the light shielding layer BM, the color filters CFR, CFG, and CFB, etc. The light shielding layer BM is disposed on the Figure 4 The illustrated scanning lines G1, G2, G3, signal lines S1, S2, S3, contacts PA1, PA2, PA3, switching elements TrD1, TrD2, TrD3 and the like are located in an area where wiring portions face each other.

[0156] exist Figure 8 In the embodiment, the counter substrate SUS2 includes three color filters CFR, CFG, and CFB, but may also include four or more color filters including color filters of colors other than blue, red, and green, such as white, transparent, yellow, magenta, cyan, etc. Furthermore, these color filters CFR, CFG, and CFB may also be provided on the array substrate SUS1.

[0157] The array substrate SUS1 and counter substrate SUS2 are arranged with the first alignment film AL1 and the second alignment film AL2 facing each other. A liquid crystal layer LC is enclosed between the first and second alignment films AL1 and AL2. The liquid crystal layer LC is composed of a negative-type liquid crystal material with negative dielectric anisotropy or a positive-type liquid crystal material with positive dielectric anisotropy.

[0158] The array substrate SUS1 faces the backlight unit IL, and the counter substrate SUS2 is located on the display surface side. As the backlight unit IL, various types of units can be applied, and the detailed structure thereof is omitted.

[0159] The first optical element OD1, including the first polarizing plate PL1, is disposed on the outer surface of the first insulating substrate 10 or on the surface facing the backlight unit IL. The second optical element OD2, including the second polarizing plate PL2, is disposed on the outer surface of the second insulating substrate 20 or on the surface facing the viewing position. The first polarization axis of the first polarizing plate PL1 and the second polarization axis of the second polarizing plate PL2 are arranged, for example, in a cross-Nichol relationship within the XY plane. It should be noted that the first optical element OD1 and the second optical element OD2 may also include other optical functional elements such as phase difference plates.

[0160] For example, when the liquid crystal layer LC is made of a negative-type liquid crystal material, and no voltage is applied to the liquid crystal layer LC, the liquid crystal molecules LM are initially aligned with their major axes along the first direction X in the XY plane. On the other hand, when a voltage is applied to the liquid crystal layer LC, that is, when an electric field is generated between the pixel electrodes PE1-PE3 and the detection electrode CE, the liquid crystal molecules LM are affected by the electric field, causing their alignment to change. During this time, the polarization state of incident linearly polarized light changes according to the alignment state of the liquid crystal molecules LM as it passes through the liquid crystal layer LC.

[0161] Next, we will explain in more detail Figure 6 The structure of the switching elements TrD1, TrD2, and TrD3 shown in FIG. It should be noted that the switching elements TrD1, TrD2, and TrD3 described below are top-gate type, but they can also be bottom-gate type. Figure 6 , only main portions necessary for explaining the switching elements TrD1 , TrD2 , and TrD3 are shown, and illustration of the detection electrode CE, the pixel electrodes PE1 to PE3 , the sensor lines TL1 to TL3 , and the like are omitted.

[0162] Switching elements TrD1, TrD2, and TrD3 are arranged in the first direction X. Switching element TrD1 includes a light shielding body SL1, a semiconductor layer SC1, and a relay electrode RE1. Switching element TrD2 includes a light shielding body SL2, a semiconductor layer SC2, and a relay electrode RE2. Switching element TrD3 includes a light shielding body SL3, a semiconductor layer SC3, and a relay electrode RE3. Semiconductor layers SC1-SC3 are each formed in a roughly U-shape, intersecting scan line G2 at two locations.

[0163] In the switching element TrD1, the semiconductor layer SC1 has an end portion E11 and an end portion E12. End portion E11 is electrically connected to the signal line S1 via a contact hole CH11. End portion E12 is electrically connected to the relay electrode RE1 via a contact hole CH12. The relay electrode RE1 is located between the signal line S1 and the signal line of adjacent pixels. Furthermore, the relay electrode RE1 and the end portions E11 and E12 are all located on the side of the scan line G1 relative to the scan line G2.

[0164] The two portions of the scanning line G2 that intersect the semiconductor layer SC1 serve as gate electrodes WG11 and WG12 , respectively. The light-shielding body SL1 is located directly below the portion of the semiconductor layer SC1 that intersects the gate electrode WG12 when viewed from the XY plane.

[0165] In the switching element TrD2, the semiconductor layer SC2 has an end portion E21 and an end portion E22. End portion E21 is electrically connected to the signal line S2 via a contact hole CH21. End portion E22 is electrically connected to the relay electrode RE2 via a contact hole CH22. The relay electrode RE2 is located between the signal lines S1 and S2. Furthermore, the relay electrode RE2 and ends E21 and E22 are all located on the side of the scan line G1 relative to the scan line G2.

[0166] The two portions of the scanning line G2 that intersect the semiconductor layer SC2 serve as upper electrodes WG21 and WG22. The light shielding body SL2 is located directly below the portion of the semiconductor layer SC2 that intersects the gate electrode WG22 when viewed from the XY plane.

[0167] In the switching element TrD3, the semiconductor layer SC3 has an end portion E31 and an end portion E32. End portion E31 is electrically connected to the signal line S3 via a contact hole CH31. End portion E32 is electrically connected to the relay electrode RE3 via a contact hole CH32. The relay electrode RE3 is located between the signal lines S2 and S3. Furthermore, the relay electrode RE3 and ends E31 and E32 are all located on the side of the scan line G1 relative to the scan line G2.

[0168] The two portions of the scanning line G2 that intersect the semiconductor layer SC3 serve as gate electrodes WG31 and WG32. The light shielding body SL3 is located directly below the portion of the semiconductor layer SC3 that intersects the gate electrode WG32 when viewed from the XY plane.

[0169] like Figure 7 As shown, the contact portion PA1 of the pixel electrode PE1 is opposite to the relay electrode RE1 and is electrically connected to the relay electrode RE1 via the contact hole CH12. The contact portion PA2 of the pixel electrode PE2 is opposite to the relay electrode RE2 and is electrically connected to the relay electrode RE2 via the contact hole CH22. The contact portion PA3 of the pixel electrode PE3 is opposite to the relay electrode RE3 and is electrically connected to the relay electrode RE3 via the contact hole CH32. It should be noted that Figure 7 In the figure, only the ratio is shown. Figure 8 The first alignment film AL1 shown is located below and above the second insulating film 12 .

[0170] Contact portions PA1, PA2, and PA3 are electrically connected to relay electrodes RE1, RE2, and RE3, respectively, via conductive layers CEE. The multiple conductive layers CEE are insulated outside contact holes CH12, CH22, and CH32, respectively, by a fifth insulating film 15 and a sixth insulating film 16. The multiple conductive layers CEE are formed simultaneously with the detection electrodes CE and are made of the same material.

[0171] The relay electrodes RE1, RE2, and RE3 are formed simultaneously with the sensor wirings TL1, TL2, and TL3 and are made of the same material as the sensor wirings TL1, TL2, and TL3. The relay electrodes RE1, RE2, and RE3 are electrically connected to the drain electrodes DE12, DE22, and DE32. The drain electrodes DE12, DE22, and DE32 are connected to Figure 6 The end portions E12, E22, and E32 of the switching elements TrD1, TrD2, and TrD3 are shown. The drain electrodes DE12, DE22, and DE32 are formed simultaneously with the signal lines S1, S2, and S3 and are formed of the same material as the signal lines S1, S2, and S3.

[0172] Light shielding bodies SL1, SL2, SL3 (refer to Figure 6 ) is located in Figure 7 and Figure 8 The location not shown in the figure is located Figure 8 The semiconductor layers SC1, SC2, and SC3 are formed between the first insulating substrate 10 and the first insulating film 11. Figures 10 to 12 As shown, the semiconductor layers SC1, SC2, and SC3 are located between the first insulating film 11 and the second insulating film 12. The semiconductor layers SC1, SC2, and SC3 are formed of, for example, polycrystalline silicon, but may also be formed of amorphous silicon, an oxide semiconductor, or the like.

[0173] like Figure 7 As shown in FIG, the relay electrodes RE1 to RE3 are located on the same straight line along the first direction X. Figure 7 In the cross-section shown, connecting the auxiliary detection electrode CEA to the sensor line TL2 requires an additional contact hole between the contact holes CH12 and CH22 in the first direction X. If an additional contact hole is formed between the contact holes CH12 and CH22 in the first direction X, the distance between the contact holes CH12 and CH22 must be increased to maintain the thickness of the fifth insulating film 15. As a result, the width of the sub-pixel SPix in the first direction X increases. Therefore, in the first embodiment, the electrical connection between the detection electrode CE and any of the sensor lines TL1, TL2, and TL3 is arranged at a position that is not aligned with the contact holes CH12, CH22, and CH32.

[0174] like Figure 4As shown, the detection electrode CE and the sensor wirings TL1, TL2, and TL3 are electrically connected via any one of the widened portions TCE1, TCE2, and TCE3, which are parts of the sensor wirings TL1, TL2, and TL3. Figure 4 and Figure 6 The widened portions TCE1, TCE2, and TCE3 are arranged at positions that are not aligned with the contact holes CH12, CH22, and CH32. Figure 7 In the cross-section shown, the auxiliary detection electrode CEA is insulated from the sensor line TL2 by the fifth insulating film 15. That is, the auxiliary detection electrode CEA, which connects the adjacent main detection electrodes CEP in the second direction Y, is located at a position overlapping the sensor line TL2. Therefore, the thickness of the fifth insulating film 15 can be maintained, and the width of the sub-pixel SPix in the first direction X can be reduced. As a result, the sensor-equipped display device PNL of Embodiment 1 can achieve high definition.

[0175] like Figure 8 As shown, in the first direction X, the main lines ML of the sensor wirings TL1, TL2, and TL3 (see Figure 4 ) is equal to or smaller than the width of the light shielding layer BM. As a result, the main lines ML of the sensor wirings TL1, TL2, and TL3 are difficult to be visually recognized.

[0176] like Figure 5 As shown, the widened portions TCE1, TCE2, and TCE3 have a width in the first direction X that is wider than the width of the main line ML of the sensor wirings TL1, TL2, and TL3. Figure 5 In FIG, the light shielding layer BM includes a plurality of first portions BM1 extending in the first direction X and a plurality of second portions BM2 extending in the second direction Y. When viewed from above the XY plane, the light shielding layer BM surrounds the opening AP of the sub-pixel SPix. Thus, when viewed from above the XY plane, at least a portion of the widening portions TCE1, TCE2, and TCE3 overlaps with the second portion BM2, while the other portions extend from the second portion BM2. In other words, Figure 5 As shown, in the first direction X, the widths of the expansion portions TCE1 , TCE2 , and TCE3 are greater than the width of the second portion BM2 of the light shielding layer BM.

[0177] Therefore, in the display device with sensor PNL of the first embodiment, as shown in FIG. Figure 9 or Figure 13 As shown, by having widened portions TCE1, TCE2, and TCE3, there is a connection portion CT (see Figures 10 to 12) of the pixel Pix (first pixel). In contrast, in the sensor-equipped display device PNL of embodiment 1, there are no widening portions TCE1, TCE2, and TCE3, and thus there is a pixel Pix (second pixel) that does not have a connection portion CT. In addition, there is a pixel Pix (second pixel) that has a connection portion CT (see Figures 10 to 12 ) and pixels Pix (second pixels) without a connection portion CT are alternately arranged in the first direction X. Furthermore, pixels Pix with a connection portion CT and pixels Pix without a connection portion CT are alternately arranged in the second direction Y. In this manner, a non-connection region PTN without widening portions TCE1, TCE2, or TCE3 exists for every other pixel Pix, thereby reducing the amount of light blocking caused by the widening portions TCE1, TCE2, and TCE3.

[0178] like Figure 9 As shown, in the first pattern CB1, the first connection area PT1, the second connection area PT2, the third connection area PT3, and the non-connection area PTN are arranged in 6 rows and 6 columns of pixels Pix. In the first connection area PT1, the second connection area PT2, and the third connection area PT3, for each pixel Pix, each sub-pixel SPix has one of the widened portions TCE1, TCE2, and TCE3. In the first connection area PT1, the widened portion TCE1 is electrically connected to the detection electrode CE through the contact hole TH. Thus, as shown in FIG. Figure 10 As shown in FIG. 1 , the widened portion TCE1 is connected to the detection electrode CE as the connection portion CT. In the first connection region PT1, the widened portions TCE2 and TCE3 are not connected to the detection electrode CE. In the second connection region PT2, the widened portion TCE2 is electrically connected to the detection electrode CE through the contact hole TH. Figure 11 As shown in FIG. 1 , the widened portion TCE2 is connected to the detection electrode CE as the connection portion CT. In the second connection region PT2, the widened portions TCE1 and TCE3 are not connected to the detection electrode CE. In the third connection region PT3, the widened portion TCE3 is electrically connected to the detection electrode CE through the contact hole TH. Figure 12 As shown, the widened portion TCE3 is connected to the detection electrode CE as the connection portion CT. In the third connection region PT3, the widened portions TCE1 and TCE2 are not connected to the detection electrode CE.

[0179] like Figure 9As shown, a pixel Pix (first pixel) having widening portions TCE1, TCE2, and TCE3 includes sub-pixels SPix1, SPix2, and SPix3. Similarly, a pixel Pix (second pixel) not having widening portions TCE1, TCE2, and TCE3 also includes sub-pixels SPix1, SPix2, and SPix3. Three pixels Pix (first pixel) having widening portions TCE1, TCE2, and TCE3 are arranged in the second direction Y, separated by pixels Pix (second pixel) not having widening portions TCE1, TCE2, and TCE3. For any one of the three pixels Pix (first pixels) having widening portions TCE1, TCE2, and TCE3, in the first connection area PT1, the widening portion TCE1 of the sub-pixel SPix1 and the detection electrode CE are connected through the contact hole TH. Similarly, for any one of the three pixels Pix (first pixels) having the widened portions TCE1, TCE2, and TCE3, in the second connection region PT2, the widened portion TCE2 of the sub-pixel SPix2 is connected to the detection electrode CE via the contact hole TH. Figure 11 As shown, the widened portion TCE2 is connected to the detection electrode CE as a connection portion CT. Furthermore, for any one of the three pixels Pix (first pixels) having widened portions TCE1, TCE2, and TCE3, the widened portion TCE3 of the sub-pixel SPix3 is connected to the detection electrode CE via a contact hole TH in the third connection region PT3.

[0180] Three pixels Pix (first pixels) having widened portions TCE1, TCE2, and TCE3 are arranged in a first direction X, separated by pixels Pix (second pixels) not having widened portions TCE1, TCE2, and TCE3. For any one of these three pixels Pix (first pixels) having widened portions TCE1, TCE2, and TCE3, the widened portion TCE1 of sub-pixel SPix1 is connected to the detection electrode CE via a contact hole TH in a first connection region PT1. Similarly, for any one of the three pixels Pix (first pixels) having widened portions TCE1, TCE2, and TCE3, the widened portion TCE2 of sub-pixel SPix2 is connected to the detection electrode CE via a contact hole TH in a second connection region PT2. Furthermore, for any one of the three pixels Pix (first pixels) having the widened portions TCE1 , TCE2 , and TCE3 , the widened portion TCE3 of the sub-pixel SPix3 is connected to the detection electrode CE via the contact hole TH in the third connection region PT3 .

[0181] As a result, the positions of the contact holes TH are evenly distributed. As a result, deformation of the first alignment film AL1 caused by the contact holes TH is less noticeable. As a result, display quality is less likely to deteriorate.

[0182] In the first connection region PT1, the second connection region PT2, and the third connection region PT3, widened portions TCE1, TCE2, and TCE3 exist in sub-pixels SPix1, SPix2, and SPix3. Therefore, widened portions TCE1, TCE2, and TCE3 affect sub-pixels SPix1, SPix2, and SPix3 respectively, resulting in minimal variations in light shielding.

[0183] like Figure 10 As shown in FIG. 1 , in the contact hole TH, the widening portion TCE1 is electrically connected to the detection electrode CE. As for the connection portion CT, the widening portion TCE1 is directly connected to the detection electrode CE. It should be noted that in the connection portion CT, another conductive layer may be inserted between the widening portion TCE1 and the detection electrode CE. The widening portion TCE2 is electrically connected to the detection electrode CE. Figure 9 There is no electrical connection on the XX' section. The widened portion TCE3 is connected to the detection electrode CE. Figure 9 There is no electrical connection on the XX' section.

[0184] like Figure 11 As shown in FIG. 1 , in the contact hole TH, the widening portion TCE2 is electrically connected to the detection electrode CE. As for the connection portion CT, the widening portion TCE2 is directly connected to the detection electrode CE. It should be noted that in the connection portion CT, another conductive layer may be inserted between the widening portion TCE2 and the detection electrode CE. Figure 9 There is no electrical connection on the XI-XI' section. The widened portion TCE3 is connected to the detection electrode CE. Figure 9 There is no electrical connection on the XI-XI' section.

[0185] like Figure 12 As shown in FIG. 1 , in the contact hole TH, the widening portion TCE3 is electrically connected to the detection electrode CE. As for the connection portion CT, the widening portion TCE3 is directly connected to the detection electrode CE. It should be noted that in the connection portion CT, another conductive layer may be inserted between the widening portion TCE3 and the detection electrode CE. Figure 9 There is no electrical connection on the XII-XII' section. The widened portion TCE2 is connected to the detection electrode CE. Figure 9 There is no electrical connection on the XII-XII' section.

[0186] like Figure 9As shown. In each of the first connection region PT1, the second connection region PT2, and the third connection region PT3, one of the widened portions TCE1, TCE2, and TCE3 is connected to the detection electrode CE, while two are not connected to the detection electrode CE. In the first pattern CB1, within the six rows and six columns of pixels Pix, one first connection region PT1, one second connection region PT2, and one third connection region PT3 are arranged in the first direction X. Within the six rows and six columns of pixels Pix, one first connection region PT1, one second connection region PT2, and one third connection region PT3 are arranged in the second direction Y.

[0187] like Figure 13 As shown, in the second pattern CB2, the second connection region PT2 and the non-connection region PTN are arranged in the pixel Pix of row 6 and column 6. In the second connection region PT2, the widened portion TCE2 is electrically connected to the detection electrode CE through the contact hole TH.

[0188] for Figure 9 The first pattern CB1 and Figure 13 In the second pattern CB2 shown, the number of widened portions TCE1, TCE2, and TCE3 in the pixels Pix of 6 rows and 6 columns is the same. Figure 9 The first pattern CB1 shown is Figure 13 The second pattern CB2 shown is difficult to distinguish.

[0189] Therefore, the display device PNL with a sensor according to the first embodiment makes Figure 9 The first pattern CB1 and Figure 13 The second pattern CB2 is shown as being mixed. Figure 14 The detection electrode CE is used to conceptually Figure 2 The detection electrodes CE shown in FIG. 1 are described with one column and four rows in the second direction Y being representative. Figure 14 ,use Figure 14 The following technical concepts are applicable to the four detection electrodes CE1, CE2, CE3, and CE4. Figure 2 As shown in FIG, the detection electrodes CE are arranged in a matrix. Figure 14 In FIG, the sensor lines TL1 , TL2 , and TL3 are linear along the second direction Y, but are arranged in a zigzag pattern along the directions D1 and D2 as described above.

[0190] In the second direction Y, the detection electrodes CE1, CE2, CE3, and CE4 are arranged in this order, moving away from the connection circuit MP. In the detection electrode CE1, the first pattern CB1 is arranged in four columns and two rows. The sensor traces TL1, TL2, and TL3 are electrically connected to the detection electrode CE1 through the contact hole TH. In the first pattern CB1 in the first column from the left, the sensor traces TL1 and TL3 connected to the connection circuit MP are electrically connected to the detection electrode CE1 through the contact hole TH. In the first pattern CB1 in the second to fourth columns from the left, the sensor traces TL1 and TL3 are electrically disconnected by the gap SP1 between the detection electrode CE1 and the detection electrode CE2.

[0191] On detection electrode CE2, a second pattern CB2 is arranged in one column and two rows from the left, and a first pattern CB1 is arranged in three columns and two rows from the second column from the left. Sensor traces TL1, TL2, and TL3 are electrically connected to detection electrode CE2 via contact hole TH. In the first pattern CB1 in the second column from the left, sensor traces TL1 and TL3 connected to connection circuit MP are electrically connected to detection electrode CE2 via contact hole TH. Sensor trace TL2 is electrically disconnected by gap SP2 between detection electrode CE2 and detection electrode CE3. In the first pattern CB1 in the third and fourth columns from the left, sensor traces TL1 and TL3 are electrically disconnected by gap SP2 between detection electrode CE2 and detection electrode CE3.

[0192] Detection electrode CE3 has two columns and two rows of second patterns CB2 arranged from the left, and two columns and two rows of first patterns CB1 arranged from the third column from the left. Sensor traces TL1, TL2, and TL3 are electrically connected to detection electrode CE3 via contact hole TH. In the first pattern CB1 in the third column from the left, sensor traces TL1 and TL3 connected to connection circuit MP are electrically connected to detection electrode CE3 via contact hole TH. Sensor trace TL2 is electrically disconnected by gap SP3 between detection electrode CE3 and detection electrode CE4. In the first pattern CB1 in the fourth column from the left, sensor traces TL1 and TL3 are electrically disconnected by gap SP3 between detection electrode CE3 and detection electrode CE4.

[0193] On detection electrode CE4, the second pattern CB2 is arranged in three columns and two rows from the left, and the first pattern CB1 is arranged in one column and two rows from the fourth column from the left. Sensor traces TL1, TL2, and TL3 are electrically connected to detection electrode CE4 via contact hole TH. In the first pattern CB1 in the fourth column from the left, sensor traces TL1 and TL3 connected to connection circuit MP are electrically connected to detection electrode CE4 via contact hole TH. Sensor trace TL2 has no supply wiring from connection circuit MP and is electrically disconnected from the wiring from connection circuit MP.

[0194] In the second pattern CB2, the first column from the left, the sensor lines TL1 and TL3 connected to the connection circuit MP overlap with the detection electrodes CE4, CE3, and CE2, but are not electrically connected to the detection electrodes CE4, CE3, and CE2. In the second pattern CB2, the first column from the left, the sensor lines TL1 and TL3 connected to the connection circuit MP are arranged so as to straddle the slits SP3, SP2, and SP1.

[0195] In the second pattern CB2, the second column from the left, the sensor lines TL1 and TL3 connected to the connection circuit MP overlap with the detection electrodes CE4 and CE3, but are not electrically connected to the detection electrodes CE4 and CE3. In the second pattern CB2, the second column from the left, the sensor lines TL1 and TL3 connected to the connection circuit MP are arranged so as to straddle the slits SP3 and SP2.

[0196] In the second pattern CB2, the third row from the left, the sensor lines TL1 and TL3 connected to the connection circuit MP overlap with the detection electrode CE4 but are not electrically connected to the detection electrode CE4. In the second pattern CB2, the third row from the left, the sensor lines TL1 and TL3 connected to the connection circuit MP are arranged so as to straddle the slit SP3.

[0197] As described above, the sensor line TL2 is electrically disconnected by any of the gaps SP1, SP2, and SP3 between adjacent detection electrodes. This configuration reduces the parasitic capacitance between the detection electrode CE and the sensor line TL2, improving the detection accuracy of the electrostatic capacitance.

[0198] like Figure 13 As shown, in the second pattern CB2, the pixel Pix (first pixel) having widening portions TCE1, TCE2, and TCE3 includes sub-pixels SPix1, SPix2, and SPix3. Similarly, the pixel Pix (second pixel) not having widening portions TCE1, TCE2, and TCE3 also includes sub-pixels SPix1, SPix2, and SPix3. Three pixels Pix (first pixel) having widening portions TCE1, TCE2, and TCE3 are arranged in the second direction Y, separated by pixels Pix (second pixel) not having widening portions TCE1, TCE2, and TCE3. For these three pixels Pix (first pixels) having widening portions TCE1, TCE2, and TCE3, the widening portion TCE2 of sub-pixel SPix2 is connected to the detection electrode CE via the contact hole TH.

[0199] In the second pattern CB2, three pixels Pix (first pixels) having a connection portion CT are arranged in the first direction X, sandwiching pixels Pix (second pixels) not having a connection portion CT. In the pixel Pix (first pixel) having a connection portion CT, the widened portion TCE2 of the sub-pixel SPix2 is connected to the detection electrode CE as the connection portion CT (see Figure 11 ).

[0200] As a result, sensor line TL1, which has widened portion TCE1 in sub-pixel SPix1, can extend across, for example, multiple detection electrodes CE4, CE3, and CE2. Similarly, sensor line TL3, which has widened portion TCE3 in sub-pixel SPix3, can extend across, for example, multiple detection electrodes CE4, CE3, and CE2. Sensor line TL2 is electrically disconnected by any of the slits SP1, SP2, and SP3. This structure reduces parasitic capacitance between the detection electrodes CE and sensor line TL2, improving capacitance detection accuracy.

[0201] Comparing adjacent detection electrodes CE1 and CE2, the number of contact holes TH connected per unit area of ​​the six rows and six columns of pixel Pix is ​​the same. Comparing adjacent detection electrodes CE2 and CE3, the number of contact holes TH connected per unit area of ​​the six rows and six columns of pixel Pix is ​​the same. Comparing adjacent detection electrodes CE3 and CE4, the number of contact holes TH connected per unit area of ​​the six rows and six columns of pixel Pix is ​​the same. As a result, the contact holes TH are less conspicuous. Consequently, the sensor-equipped display device PNL can improve display quality.

[0202] Figure 15 This is a timing waveform chart showing an operation example of the display device according to the first embodiment. Figure 15 The operation examples shown are only examples and can be modified as appropriate.

[0203] like Figure 15 As shown, the display period Pd and the detection period Pt are divided and executed alternately in time sequence. The sensor-equipped display device PNL can perform contact detection on one detection surface during a single detection period Pt, or it can perform contact detection during multiple detection periods Pt. Furthermore, a single frame of image display can be performed during the display period Pd, or multiple display periods Pd and detection periods Pt can be alternately arranged within the display period of a single frame of image display.

[0204] The source driver supplies pixel signals VPix to the sub-pixels SPix1, SPix2, and SPix3 corresponding to the scanning lines G1, G2, and G3 via the signal lines S1, S2, and S3. Then, in these sub-pixels SPix1, SPix2, and SPix3, one horizontal line is displayed according to the supplied pixel signals VPix. Figure 15 As shown, during the display period Pd, the display driving signal Vcom is supplied to the detection electrodes CE1, CE2, CE3, and CE4. In the connection circuit MP, the display driving signal Vcom is supplied to all the detection electrodes CE (see FIG. Figure 2 ). As a result, the detection electrodes CE become common electrodes to which a common potential is applied.

[0205] like Figure 15 As shown, during the detection period Pt, the integrated circuit CP and the connection circuit MP operate according to the control signal Vsc1 of the control line SSE (not shown), and the detection drive signal Vself is supplied to the detection electrode CE. Figure 1 The peripheral wiring CE-G shown supplies a protection signal Vgd having the same waveform as the detection drive signal Vself and synchronized with the drive signal Vself. Alternatively, during the detection period Pt, the peripheral wiring CE-G may be set to a state where it is not electrically connected to any location (high impedance).

[0206] A detection signal Vdet corresponding to the change in capacitance of the detection electrode CE is supplied to the detection circuit of the integrated circuit CP via the analog front end of the connection circuit MP. This allows the sensor-equipped display device PNL to detect objects in contact or proximity, using each of the multiple detection electrodes CE. The specific detection method is described in Patent Document 1, and therefore, the description in Patent Document 1 is also included in this embodiment and omitted.

[0207] As described above, the sensor-equipped display device PNL includes a plurality of detection electrodes CE, a plurality of sensor wirings TL, a plurality of pixels Pix, a plurality of scanning lines GL, and a plurality of signal lines SL on a first insulating substrate 10. The plurality of detection electrodes CE are arranged in a matrix in a first direction X and a second direction Y intersecting the first direction X. A plurality of sensor wirings TL are connected to one detection electrode CE. A pixel Pix includes a plurality of sub-pixels SPix1, SPix2, and SPix3. A plurality of scanning lines GL scan switching elements TrD1, TrD2, and TrD3 and extend in the first direction X. A plurality of signal lines SL are connected to the switching elements TrD1, TrD2, and TrD3 and extend in the second direction Y. In the third direction Z, a sensor wiring TL is arranged above and overlaps a signal line SL. As a result, the sensor wiring TL and the light shielding layer BM overlapping the signal line SL also overlap and are less noticeable.

[0208] Furthermore, since multiple sensor lines TL can be electrically connected to one detection electrode CE to reduce line resistance, degradation of the waveform of the drive signal supplied to the detection electrode CE can be suppressed. As a result, the sensor-equipped display device PNL improves capacitance detection accuracy.

[0209] The sensor wiring TL overlaps with the signal line SL and is therefore wider than the signal line SL in the first direction X. This facilitates alignment during film formation and reduces the resistance of the sensor wiring TL. The main line ML of the sensor wiring TL preferably has a width in the first direction X that is less than or equal to the width of the overlapping light-shielding layer BM. This makes the sensor wiring TL less visible.

[0210] A portion of the sensor wiring TL includes one of the widened portions TCE1 to TCE3, which is wider than the main line in the first direction X. By making the widths of the widened portions TCE1, TCE2, and TCE3 sufficiently large, even with an increased thickness of the fifth insulating film 15, a contact hole TH can be provided to ensure contact area between any of the widened portions TCE1, TCE2, and TCE3 and the detection electrode CE. This creates a connection portion CT: the contact hole TH is formed in the fifth insulating film 15, and the connection portion CT is formed in the contact hole TH, connecting the detection electrode CE to any of the widened portions TCE1, TCE2, and TCE3. As a result, the distance between the sensor wiring TL1, TL2, and TL3 and the detection electrode CE in the third direction Z can be ensured, reducing parasitic capacitance between the detection electrode CE and the sensor wiring TL1, TL2, and TL3 passing through the detection electrode CE. Furthermore, by making the width of the widened portion TCE1 sufficiently large, the fifth insulating film 15 can be formed using a resin material that is difficult to form a thin film.

[0211] The detection electrode CE is positioned above the sensor line TL in the third direction Z, with the fifth insulating film 15 interposed therebetween. The fifth insulating film 15 includes a contact hole TH that connects the detection electrode CE to any of the widened portions TCE1, TCE2, and TCE3. Because the widened portions TCE1, TCE2, and TCE3 are positioned above and overlap the signal line SL, deformation of the first alignment film AL1 caused by the contact hole TH is less likely to affect the pixel electrodes PE1, PE2, and PE3. As a result, display quality is less likely to deteriorate.

[0212] like Figure 14 As shown, multiple contact holes TH are provided between, for example, one detection electrode CE1 and one sensor line TL1. This reduces connection resistance and suppresses degradation of the waveform of the drive signal supplied to the detection electrode CE. Consequently, the sensor-equipped display device PNL improves capacitance detection accuracy.

[0213] like Figure 5 As shown in FIG. 1 , the widening portions TCE1, TCE2, and TCE3 are arranged between two adjacent scanning lines G1 and G2. In addition, when looking down at the XY plane, the widening portions TCE1, TCE2, and TCE3 do not overlap with the first portion BM1. Thus, the widening portions TCE1, TCE2, and TCE3 can be aligned with the first portion BM1. Figure 5 The positions of the contact portions PA1, PA2, PA3 of the pixel electrodes PE1, PE2, PE3 are different. Figure 14 As shown, the formation accuracy of the contact hole TH increases, and the reliability of the electrical connection between the detection electrode CE and the sensor line TL increases.

[0214] As from Figures 10 to 12 As shown, the widened parts TCE1, TCE2, and TCE3 are located at Figure 6 The widened portions TCE1, TCE2, and TCE3 are located above and overlap any one of the contact holes CH11, CH21, and CH31. As a result, the widened portions TCE1, TCE2, and TCE3 can mitigate the effects of the contact holes CH11, CH21, and CH31 on the first alignment film AL1.

[0215] (Implementation Method 2)

[0216] Figure 16 This is a plan view for explaining a switching element according to the second embodiment. Figure 17 This is a schematic diagram for explaining a sub-pixel according to Embodiment 2. It should be noted that the same reference numerals are used for the components described in Embodiment 1, and their descriptions are omitted. In Embodiment 2, the configuration of the sub-pixel SPix13 differs from that in Embodiment 1.

[0217] In the switching element TrD3 of Embodiment 2, the semiconductor layer SC3 has an end portion E31 and an end portion E32. End portion E31 is electrically connected to the signal line S3 via a contact hole CH31. End portion E32 is electrically connected to the relay electrode RE3 via a contact hole CH32. The relay electrode RE3 is located between the signal lines S2 and S3. Furthermore, the relay electrode RE3 and ends E31 and E32 are all located on the scanning line G3 side relative to the scanning line G2.

[0218] The two portions of the semiconductor layer SC3 that intersect the scan line G2 function as gate electrodes WG31 and WG32, respectively. The light shield SL3 is located directly below the portion of the semiconductor layer SC3 that intersects the gate electrode WG32. The relay electrode RE3 is offset from the position where the relay electrodes RE1 and RE2 are arranged, across the scan line G2. It should be noted that while portions of the relay electrodes RE1 through RE3 overlap with the scan line G2, they can also be offset entirely from the position where they overlap with the scan line G2.

[0219] The contact holes CH12 and CH22 are arranged side by side on the same straight line along the first direction X. In contrast, the contact hole CH32 is arranged side by side in an oblique direction intersecting the first direction X relative to the contact holes CH12 and CH22. In other words, the contact hole CH32 is arranged at a position deviated from the same straight line on which the contact holes CH12 and CH22 are arranged. Here, the widened portions TCE1, TCE2, and TCE3 are located at Figure 16 As a result, as shown in FIG. Figure 14 As shown, the formation accuracy of the contact hole TH increases, and the reliability of the electrical connection between the detection electrode CE and the sensor line TL increases.

[0220] like Figure 17 As shown, sub-pixels SPix1 are arranged in the first column along the second direction Y. Sub-pixels SPix2 are arranged in the second direction Y in the second column, which is the second column of the first column. Sub-pixels SPix3 and sub-pixels SPix13 are arranged alternately in the second direction Y in the third column, which is the second column of the second column. The first, second, and third columns are periodically arranged in the first direction X. A red (R) color filter is configured in sub-pixel SPix1. A green (G) color filter is configured in sub-pixel SPix2. A white or transparent (W) color filter is configured in sub-pixel SPix3. A blue (B) color filter is configured in sub-pixel SPix13.

[0221] The current value of the backlight unit IL can be reduced by an amount equivalent to the brightness increase of the sub-pixel SPix13, thereby reducing power consumption. In addition, the area of ​​the blue (B) color with low visibility can be ensured.

[0222] While preferred embodiments have been described above, the present disclosure is not limited to such embodiments. The contents disclosed in the embodiments are always merely examples, and various modifications can be made without departing from the scope of the present disclosure. Suitable modifications made without departing from the scope of the present disclosure are, of course, also within the technical scope of the present disclosure.

[0223] For example, the widened portions TCE1, TCE2, and TCE3 described above may be any of relay electrodes, connecting portions, widened portions, extended portions, widened portions, and base portions, or may simply be referred to as the first portion of the sensor trace TL. The connecting portion CT may also be referred to as a contact portion.

[0224] The plane defined by the first direction X and the second direction Y is parallel to the surface of the array substrate SUS1. However, the surface of the array substrate SUS1 may also be curved. In this case, the predetermined direction, as viewed from the direction of the largest apparent area of ​​the sensor-equipped display device PNL, is the first direction, and the direction intersecting the first direction is the second direction. A third direction orthogonal to the first and second directions may be defined as the direction of the largest apparent area of ​​the sensor-equipped display device PNL.

Claims

1. A display device, comprising: a first insulating film having a first surface and a second surface opposite to the first surface; a plurality of detection electrodes arranged in a matrix on the first surface; and a first metal line on the second surface, in, The first detection electrode is one of the plurality of detection electrodes, The first metal wire includes a first widened portion, a second widened portion, and a first main line between the first widened portion and the second widened portion. The first detection electrode overlaps with the first main line and the first widened portion, The width of the first widened portion is greater than the width of the first main line, The width of the second widened portion is greater than the width of the first main line, The first detection electrode is connected to the first widened portion via a first contact hole formed in the first insulating film, and The second widened portion is completely overlapped by the first insulating film.

2. The display device according to claim 1, further comprising a scanning line, Each scanning line extends in a first direction and is arranged in a second direction intersecting the first direction. The scan line includes: First scan line; a second scan line different from the first scan line; a third scan line different from the first scan line and the second scan line; as well as a fourth scan line, which is different from the first scan line, the second scan line and the third scan line, The first metal line crosses the first scan line, the second scan line, the third scan line, and the fourth scan line at a first intersection point, a second intersection point, a third intersection point, and a fourth intersection point of the first metal line, respectively. The first widened portion is located between the first intersection point and the second intersection point of the first metal wire. The second widened portion is located between the third intersection and the fourth intersection of the first metal wire, and The first main line crosses the second scan line and the third scan line at the second intersection point and the third intersection point of the first metal line, respectively.

3. The display device according to claim 2, wherein: The first metal wire includes a plurality of widened portions, The first widened portion is one of a plurality of widened portions, The second widened portion is another one of the plurality of widened portions, and, The first metal line does not have any of the plurality of widened portions between the second intersection and the third intersection of the first metal line.

4. The display device according to claim 2, wherein The first metal wire includes a plurality of widened portions, The first widened portion is one of a plurality of widened portions, The second widened portion is another one of the plurality of widened portions, and, The first metal line includes a non-connection region having no widened portion between a second intersection point and a third intersection point of the first metal line.

5. The display device according to claim 2, further comprising a second metal wire different from the first metal wire on the second surface of the first insulating film, wherein The second detection electrode is one of the plurality of detection electrodes, The second metal wire includes a third widened portion, a fourth widened portion, and a second main line between the third widened portion and the fourth widened portion. The second detection electrode overlaps with the second main line, the second widened portion, and the fourth widened portion. The width of the third widened portion is greater than the width of the second main line, The width of the fourth widened portion is greater than the width of the second main line, The second detection electrode is connected to the fourth widened portion via a second contact hole formed in the first insulating film, and The third widened portion is completely overlapped by the first insulating film. The display device according to claim 5 , wherein: The second metal line crosses the first scan line, the second scan line, the third scan line, and the fourth scan line at a first intersection, a second intersection, a third intersection, and a fourth intersection of the second metal line, respectively. The third widened portion is located between the first intersection point and the second intersection point of the second metal wire. The fourth widened portion is located between the third intersection and the fourth intersection of the second metal wire, and The second main line crosses the second metal line at a second intersection point and a third intersection point.

7. The display device according to claim 6, wherein: The second metal wire includes a plurality of widened portions, The third widened portion is one of the plurality of widened portions of the second metal wire, The fourth widened portion is another one of the plurality of widened portions of the second metal wire, and The second metal line does not have any of the plurality of widened portions between the second intersection point and the third intersection point of the second metal line.

8. The display device according to claim 1, wherein The first insulating film is made of a light-transmitting resin material.

9. The display device according to claim 1, wherein The first insulating film is made of an inorganic material.

10. The display device according to claim 1, further comprising: a plurality of pixel electrodes in a display area; and a light shielding layer including an opening facing each pixel electrode, wherein The light-shielding layer comprises: a plurality of first shielding portions, each of the first shielding portions extending in a first direction; and a plurality of second shielding portions, each second shielding portion extending in a second direction intersecting the first direction, One of the second shielding portions extends parallel to the first main line and overlaps with the first main line, The width of the second shielding portion is greater than the width of the first main line in the first direction, The width of the first widening portion is greater than the width of the second shielding portion in the first direction, and The width of the second widening portion in the first direction is greater than the width of the one second shielding portion.

11. The display device according to claim 2, wherein: The first metal line includes a plurality of widened portions including the first widened portion and the second widened portion, The first metal line does not have an expanded portion between the second intersection point and the third intersection point of the first metal line.

12. The display device according to claim 2, wherein: The first metal line includes a plurality of widened portions including the first widened portion and the second widened portion, The first metal line includes a non-connection region between the second intersection and the third intersection of the first metal line where no widening portion is provided.

13. A display device comprising: a plurality of signal lines arranged in a row direction in a display area; a plurality of metal lines arranged in the row direction in the display area, the metal lines being different from the signal lines; a plurality of detection electrodes arranged in a matrix in the column direction and the row direction, wherein the detection electrodes include a first detection electrode; and Multiple pixels arranged in a matrix, Wherein, the metal wire includes: a first metal wire including a first main wire and a first widened portion; and a second metal line adjacent to the first metal line in the row direction, the second metal line including a second main line and a second widened portion; The width of the first widened portion is greater than the width of the first main line, The width of the second widened portion is greater than the width of the second main line, The first widening portion and the second widening portion are located in the same pixel row, and The first detection electrode overlaps with the first widened portion that is not connected to the first detection electrode, and the first detection electrode overlaps with the second widened portion that is connected to the first detection electrode.

14. The display device according to claim 13, wherein: The first metal line further includes a third widened portion having a width greater than that of the first main line. The second metal line further includes a fourth widened portion having a width greater than that of the second main line. The first main line is arranged between the first widened portion and the third widened portion, The second main line is arranged between the second widened portion and the fourth widened portion, The first detection electrode overlaps with the third widened portion and the fourth widened portion, The third widening portion and the fourth widening portion are located in the same pixel row, and The third widened portion is not connected to the first detection electrode.

15. The display device according to claim 14, wherein The fourth widened portion is connected to the first detection electrode.

16. The display device according to claim 14, wherein: The metal line extends parallel to the signal line. 17 . The display device according to claim 16 , further comprising a first insulating film, wherein the signal line and the metal line are connected to the first insulating film.

18. The display device according to claim 17, wherein: The first insulating film has a first surface and a second surface opposite to the first surface, The signal line is connected to the first surface, and The first metal wire and the second metal wire are connected to the second surface.

19. The display device according to claim 15, wherein: The first widening portion and the third widening portion are spaced apart by at least one pixel row.

20. The display device according to claim 19, wherein The first widening portion and the third widening portion are spaced apart by at least one pixel row.

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