TWI804326B - Pixel array substrate - Google Patents

Abstract

A pixel array substrate includes a gate line, a data line, an active elements, a pixel electrode, a common electrode, a touch signal line and a conductive pattern. The data line and the gate line are intersected. The active element has a first end, a second end and a control end. The first end of the active element is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line. The pixel electrode is electrically connected to the second end of the active element. The common electrode overlaps the pixel electrode. The touch signal line is electrically connected to the common electrode. The conductive pattern is disposed beside the touch signal line, is electrically isolated from the touch signal line, and is used to overlap with a spacer.

Description

Pixel Array Substrate

The invention relates to a pixel array substrate.

The applications of monitors are becoming more and more widespread, such as home audio-visual entertainment, information display boards in public places, monitors for e-sports and portable electronic products. In recent years, most of the displays also have a touch function. The touch types of displays can be roughly divided into out-cell touch, on-cell touch and in-cell touch. In-cell touch (In-cell touch) technology has the advantage of easy thinning, so it has gradually become the mainstream of touch displays in recent years. However, the data lines and/or gate lines integrated in the display and the conductive patterns for the spacers to stand are prone to coupling effects, thereby causing light leakage problems.

The invention provides a pixel array substrate with good performance.

A pixel array substrate according to an embodiment of the present invention includes gate lines, data lines, active components, pixel electrodes, common electrodes, touch signal lines and conductive patterns. The data lines and the gate lines are arranged alternately. The active element has a first terminal, a second terminal and a control terminal. The first end of the active element is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line. The pixel electrode is electrically connected to the second terminal of the active device. The common electrode overlaps the pixel electrode. The touch signal line is electrically connected to the common electrode. The conductive pattern is disposed beside the touch signal line, electrically isolated from the touch signal line, and used to overlap with the spacer. The data lines have curved segments. In the top view of the pixel array substrate, the curved segment of the data line bypasses the conductive pattern and is separated from the conductive pattern.

A pixel array substrate according to an embodiment of the present invention includes gate lines, data lines, active components, pixel electrodes, common electrodes, touch signal lines and conductive patterns. The data lines and the gate lines are arranged alternately. The active element has a first terminal, a second terminal and a control terminal. The first end of the active element is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line. The pixel electrode is electrically connected to the second terminal of the active device. The common electrode overlaps the pixel electrode. The touch signal line is electrically connected to the common electrode. The conductive pattern is disposed beside the touch signal line, electrically isolated from the touch signal line, and used to overlap with the spacer. The gate lines have curved segments. In the top view of the pixel array substrate, the curved section of the gate line bypasses the conductive pattern and is separated from the conductive pattern.

A pixel array substrate according to an embodiment of the present invention includes gate lines, data lines, active components, pixel electrodes, common electrodes, touch signal lines and conductive patterns. The data lines and the gate lines are arranged alternately. The active element has a first terminal, a second terminal and a control terminal. The first end of the active element is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line. The pixel electrode is electrically connected to the second terminal of the active device. The common electrode overlaps the pixel electrode. The touch signal line is electrically connected to the common electrode. The conductive pattern is disposed beside the touch signal line, electrically isolated from the touch signal line, and used to overlap with the spacer. The conductive pattern has a plurality of main parts. In the plan view of the pixel array substrate, different sides of at least one of the data line and the gate line of the plurality of main parts.

A pixel array substrate according to an embodiment of the present invention includes gate lines, data lines, active components, pixel electrodes, common electrodes, touch signal lines and conductive patterns. The data lines and the gate lines are arranged alternately. The active element has a first terminal, a second terminal and a control terminal. The first end of the active element is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line. The pixel electrode is electrically connected to the second terminal of the active device. The common electrode overlaps the pixel electrode. The touch signal line is electrically connected to the common electrode. The conductive pattern is disposed beside the touch signal line, electrically isolated from the touch signal line, and used to overlap with the spacer. The conductive pattern is electrically connected to the pixel electrode.

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and descriptions to refer to the same or like parts.

It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connection. Furthermore, "electrically connected" or "coupled" may mean that other elements exist between two elements.

As used herein, "about," "approximately," or "substantially" includes stated values and averages within acceptable deviations from a particular value as determined by one of ordinary skill in the art, taking into account the measurements in question and the relative A specific amount of measurement-related error (ie, the limit of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, "about", "approximately" or "substantially" used herein can select a more acceptable deviation range or standard deviation according to optical properties, etching properties or other properties, and it is not necessary to use one standard deviation to apply to all properties .

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art and the present invention, and will not be interpreted as idealized or excessive formal meaning, unless expressly so defined herein.

FIG. 1 is a schematic top view of a pixel array substrate 100 according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of a display panel 10 according to an embodiment of the present invention. Fig. 2 corresponds to the section line I-I' of Fig. 1 . FIG. 1 omits the substrate 110 of FIG. 2 .

Referring to FIG. 1 and FIG. 2 , the pixel array substrate 100 includes a base 110 . The base 110 is used to carry other components of the pixel array substrate 100 . For example, in this embodiment, the material of the substrate 110 can be glass, quartz, organic polymer, or opaque/reflective material (for example: wafer, ceramic, or other applicable materials), or other applicable materials.

The pixel array substrate 100 further includes a gate line 122 disposed on the base 110 . The pixel array substrate 100 further includes data lines 142 arranged alternately with the gate lines 122 . For example, in this embodiment, the gate line 122 and the data line 142 may belong to different first metal layers 120 and second metal layers 140 respectively, wherein a metal layer 120 and a metal layer 140 are provided between the first metal layer 120 and the second metal layer 140. There is a first insulating layer 130, but the invention is not limited thereto.

The pixel array substrate 100 also includes an active element T having a first end Ta, a second end Tb and a control end Tc, wherein the first end Ta of the active element T is electrically connected to the data line 142, and the control end of the active element T Tc is electrically connected to the gate line 122 . For example, in this embodiment, the active element T may include a thin film transistor, the first terminal Ta, the second terminal Tb and the control terminal Tc may be the source, drain and gate of the thin film transistor respectively, and the thin film transistor The crystal also includes a channel (not shown), wherein the source and the drain are respectively electrically connected to two different regions of the channel. In this embodiment, the gate of the thin film transistor belongs to the first metal layer 120, the source and drain of the thin film transistor belong to the second metal layer 140, and the first insulating layer 130 is disposed on the channel The gate insulating layer between the gate and the gate, but the present invention is not limited thereto.

The pixel array substrate 100 further includes a pixel electrode 192 and a common electrode 172 . The pixel electrode 192 is electrically connected to the second terminal Tb of the active device T. As shown in FIG. The common electrode 172 overlaps with the pixel electrode 192 . For example, in this embodiment, the pixel electrode 192 has a plurality of slits 192 a overlapping the common electrode 172 . During the display time interval, the potential difference between the common electrode 172 and the pixel electrode 192 can form a fringe electric field to drive the display medium 300 (such as but not limited to: liquid crystal) to display images. The pixel array substrate 100 further includes a touch signal line 162 electrically connected to the common electrode 172 . During the touch time period, the common electrode 172 is used as a touch sensing pad.

In this embodiment, the pixel array substrate 100 further includes a second insulating layer 150 disposed on the second metal layer 140, the third metal layer 160 is disposed on the second insulating layer 150, and the touch signal line 162 is, for example, Belonging to the third metal layer 160; the pixel array substrate 100 also includes a third insulating layer 182 arranged on the third metal layer 160; the pixel array substrate 100 also includes a first transparent conductive layer arranged on the third insulating layer 182 170, and the common electrode 172, for example, belongs to the first transparent conductive layer 170; the pixel array substrate 100 also includes a fourth insulating layer 184 arranged on the first transparent conductive layer 170; the pixel array substrate 100 also includes a fourth insulating layer 184 arranged on the fourth The second transparent conductive layer 190 on the insulating layer 184, and the pixel electrode 192, for example, belongs to the second transparent conductive layer 190; however, the present invention is not limited thereto.

For example, in this embodiment, the materials of the first transparent conductive layer 170 and the second transparent conductive layer 190 are, for example, indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, other suitable oxides, or a stacked layer of at least two of the above, but the present invention is not limited thereto.

The pixel array substrate 100 further includes a conductive pattern 164 disposed beside the touch signal line 162 , electrically isolated from the touch signal line 162 , and used to overlap with the spacer PS. Specifically, in this embodiment, the display panel 10 includes a pixel array substrate 100, an opposite substrate 200, and a display medium 300 disposed between the pixel array substrate 100 and the opposite substrate 200; the spacer PS is disposed on the opposite substrate. Between the substrate 200 and the pixel array substrate 100 , the cell gap of the display panel 10 is maintained, and the conductive pattern 164 is used as a platform for the spacer PS to stand on.

For example, in this embodiment, the conductive pattern 164 and the touch signal line 162 belong to the third metal layer 160 , and the conductive pattern 164 and the touch signal line 162 are structurally separated. In addition, in this embodiment, the conductive pattern 164 is, for example, floating, but the invention is not limited thereto.

Referring to FIG. 1 , it is worth noting that the data line 142 has a curve segment 142a. In the top view of the pixel array substrate 100 , the curved segment 142 a of the data line 142 bypasses the conductive pattern 164 and is separated from the conductive pattern 164 . For example, in this embodiment, the curved section 142a of the data line 142 may be a circular arc section, but the present invention is not limited thereto.

In this embodiment, the touch signal line 162 has a curved line 162a. In the top view of the pixel array substrate 100 , the curved segment 162 a of the touch signal line 162 and the curved segment 142 a of the data line 142 bypass the conductive pattern 164 through opposite sides of the conductive pattern 164 respectively. For example, in this embodiment, the curved section 162a of the touch signal line 162 can be a circular arc section, but the present invention is not limited thereto.

In this embodiment, the data line 142 also has a broken line segment 142b, which is located next to the pixel electrode 192 and connected to the curved line segment 142a. The touch signal line 162 also has a broken line segment 162b connected with the curved line segment 162a. In the top view of the pixel array substrate 100 , the broken line segment 142 b of the data line 142 and the broken line segment 162 b of the touch signal line 162 may overlap, but the present invention is not limited thereto.

It is worth mentioning that since the data line 142 bypasses the conductive pattern 164 on which the spacer PS stands by using the curve segment 142 a, the coupling effect between the conductive pattern 164 and the data line 142 can be reduced. In this way, the problem of light leakage caused by the rotation of the display medium 300 (such as liquid crystal) due to the influence of the conductive pattern 164 by the data line 142 can be improved.

It must be noted here that the following embodiments use the component numbers and part of the content of the previous embodiments, wherein the same numbers are used to denote the same or similar components, and descriptions of the same technical content are omitted. For the description of omitted parts, reference may be made to the aforementioned embodiments, and the following embodiments will not be repeated.

FIG. 3 is a schematic top view of a pixel array substrate 100A according to another embodiment of the present invention.

The pixel array substrate 100A in FIG. 3 is similar to the pixel array substrate 100 in FIG. 1 , the difference between them is that the gate lines 122 and 122A are different. Please refer to FIG. 3 , specifically, in this embodiment, the gate line 122A has a curved section 122a. In the top view of the pixel array substrate 100 , the curved segment 122 a of the gate line 122A bypasses the conductive pattern 164 and is separated from the conductive pattern 164 . For example, in this embodiment, the curved section 122a of the gate line 122A can be an arc section, but the invention is not limited thereto.

Since the gate line 122A bypasses the conductive pattern 164 on which the spacer PS stands by using the curved section 122a, the coupling effect between the conductive pattern 164 and the gate line 122A can be reduced. In this way, the light leakage problem caused by the rotation of the display medium 300 (refer to FIG. 2 ) caused by the conductive pattern 164 being affected by the gate line 122A can be improved.

In this embodiment, in the top view of the pixel array substrate 100A, the curved section 122a of the gate line 122A and the curved section 142a of the data line 142 may optionally partially overlap, but the invention is not limited thereto. In this embodiment, in the top view of the pixel array substrate 100A, the curved section 122a of the gate line 122A may selectively partially overlap the curved section 162a of the touch signal line 162, but the present invention is not limited thereto. .

FIG. 4 is a schematic top view of a pixel array substrate 100B according to another embodiment of the present invention. The pixel array substrate 100B in FIG. 4 is similar to the pixel array substrate 100 in FIG. 1 , the difference between them is that the data lines 142 and 142B are different, and the conductive patterns 164 and 164B are different.

Please refer to FIG. 4 , specifically, in this embodiment, the data line 142B may not have the curve segment 142a. The conductive pattern 164B may have a plurality of main portions 164B- 1 , 164B- 2 . In the top view of the pixel array substrate 100B, the plurality of main portions 164B- 1 and 164B- 2 are on different sides of at least one of the data line 142B and the gate line 122 . For example, in this embodiment, the plurality of main portions 164B-1 and 164B-2 of the conductive pattern 164B include a first main portion 164B-1 and a second main portion 164B-2; in the top view of the pixel array substrate 100B Among them, the first main portion 164B- 1 and the second main portion 164B- 2 are located on opposite sides of the data line 142B.

It is worth mentioning that, in this embodiment, by dividing the conductive pattern 164B into a plurality of main portions 164B-1 and 164B-2 located on opposite sides of the data line 142B, the overlapping area of the conductive pattern 164B and the data line 142B can be reduced. and its coupling effect. In this way, the light leakage problem caused by the rotation of the display medium 300 (refer to FIG. 2 ) due to the influence of the conductive pattern 164B by the data line 142B can be improved.

FIG. 5 is a schematic top view of a pixel array substrate 100C according to yet another embodiment of the present invention. The pixel array substrate 100C in FIG. 5 is similar to the pixel array substrate 100 in FIG. 1 , the difference between them is that the data lines 142 and 142C are different, and the conductive patterns 164 and 164C are different.

Please refer to FIG. 5 , specifically, in this embodiment, the data line 142C may not have the curve segment 142a. The conductive pattern 164C may have a plurality of main portions 164C- 1 , 164C- 2 , 164C- 3 , 164C- 4 . In the top view of the pixel array substrate 100C, the plurality of main portions 164C- 1 , 164C- 2 , 164C- 3 , 164C- 4 are on different sides of at least one of the data line 142C and the gate line 122 .

For example, in this embodiment, the plurality of main portions 164C-1, 164C-2, 164C-3, and 164C-4 of the conductive pattern 164C include a first main portion 164C-1, a second main portion 164C-2, The third main part 164C-3 and the fourth main part 164C-4; in the top view of the pixel array substrate 100C, the first main part 164C-1 and the second main part 164C-2 are on opposite sides of the data line 142C, And located on one side of the gate line 122 (for example: the upper side); in the top view of the pixel array substrate 100C, the first main part 164C-1 and the third main part 164C-3 of the conductive pattern 164C are located on one side of the data line 142C side (for example: the right side) and the opposite sides (for example: upper and lower sides) of the gate line 122; in the top view of the pixel array substrate 100C, the third main part 164C-3 and the fourth main part 164C-4 data lines opposite sides of 142C, and located on the other side (for example: the lower side) of the gate line 122 .

FIG. 6 is a schematic top view of a pixel array substrate 100D according to an embodiment of the present invention.

The pixel array substrate 100D in FIG. 6 is similar to the pixel array substrate 100 in FIG. 1 , the difference between them is that the data lines 142 and 142D are different, and the conductive patterns 164 and 164D are different.

Please refer to FIG. 6 , specifically, in this embodiment, the data line 142D may not have the curve segment 142a. The conductive pattern 164D can be electrically connected to the pixel electrode 192 instead of floating.

It is worth mentioning that, in this embodiment, by electrically connecting the conductive pattern 164D to the pixel electrode 192, even if the conductive pattern 164D is coupled with the data line 142D/gate line 122, the conductive pattern 164D still has a connection with the pixel electrode. 192 same potential. In this way, the conductive pattern 164D can avoid the adverse effect on the display medium 300 (refer to FIG. 2 ), thereby improving the light leakage problem.

FIG. 7 is a schematic top view of a pixel array substrate 100E according to another embodiment of the present invention. The pixel array substrate 100E in FIG. 7 is similar to the pixel array substrate 100A in FIG. 3 , the difference between them is: in the embodiment of FIG. 7 , the conductive pattern 164E is electrically connected to the pixel electrode 192 .

FIG. 8 is a schematic top view of a pixel array substrate 100F according to another embodiment of the present invention. The pixel array substrate 100F in FIG. 8 is similar to the pixel array substrate 100C in FIG. 5 , the difference between them is: in the embodiment of FIG. 8 , the conductive pattern 164F is electrically connected to the pixel electrode 192 .

10: Display panel 100, 100A, 100B, 100C, 100D, 100E, 100F: pixel array substrate 110: base 120: the first metal layer 122, 122A: gate line 122a, 142a, 162a: curve segments 130: the first insulating layer 140: second metal layer 142, 142B, 142C, 142D: data line 142b, 162b: polyline segment 150: second insulating layer 160: the third metal layer 162: Touch signal line 164, 164B, 164D, 164E, 164F: conductive pattern 164B-1, 164B-2, 164C-1, 164C-2, 164C-3, 164C-4: main part 170: the first transparent conductive layer 172: common electrode 182: The third insulating layer 184: The fourth insulating layer 190: the second transparent conductive layer 192: pixel electrode 192a: Slit 200: opposite substrate 300: display media T: active component Ta: the first end Tb: the second end Tc: control terminal PS: spacer I-I': section line

FIG. 1 is a schematic top view of a pixel array substrate 100 according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of a display panel 10 according to an embodiment of the present invention. FIG. 3 is a schematic top view of a pixel array substrate 100A according to another embodiment of the present invention. FIG. 4 is a schematic top view of a pixel array substrate 100B according to another embodiment of the present invention. FIG. 5 is a schematic top view of a pixel array substrate 100C according to yet another embodiment of the present invention. FIG. 6 is a schematic top view of a pixel array substrate 100D according to an embodiment of the present invention. FIG. 7 is a schematic top view of a pixel array substrate 100E according to another embodiment of the present invention. FIG. 8 is a schematic top view of a pixel array substrate 100F according to another embodiment of the present invention.

100:Pixel array substrate

122: Gate line

142: data line

142a, 162a: curve segment

142b, 162b: polyline segment

162: Touch signal line

164: conductive pattern

170: the first transparent conductive layer

172: common electrode

190: the second transparent conductive layer

192: pixel electrode

192a: Slit

T: active component

Ta: the first end

Tb: the second end

Tc: control terminal

I-I': section line

Claims (13)

A pixel array substrate, comprising: a gate line; a data line interlaced with the gate line; an active element having a first end, a second end and a control end, wherein the active element's The first end is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line; a pixel electrode is electrically connected to the second end of the active element; a common electrode, Overlapping the pixel electrode; a touch signal line, electrically connected to the common electrode; and a conductive pattern, arranged beside the touch signal line, electrically isolated from the touch signal line, and arranged on the active element and used to overlap with a spacer, wherein the data line has a curved segment; in the plan view of the pixel array substrate, the curved segment of the data line bypasses the conductive pattern and is separated from the conductive pattern. The pixel array substrate as described in claim 1, wherein the touch signal line has a curved section; in the top view of the pixel array substrate, the curved section of the touch signal line and the curved section of the data line The conductive pattern is bypassed via opposite sides of the conductive pattern, respectively. The pixel array substrate as claimed in claim 1, wherein the gate line has a curved section; in the top view of the pixel array substrate, the curved section of the gate line bypasses the conductive pattern and is in line with the conductive pattern separated. The pixel array substrate as claimed in claim 3, wherein in the plan view of the pixel array substrate, the curved section of the gate line partially overlaps with the curved section of the data line. The pixel array substrate as claimed in claim 1, wherein the conductive pattern is electrically connected to the pixel electrode. A pixel array substrate, comprising: a gate line; a data line, an active element interlaced with the gate line, having a first end, a second end and a control end, wherein the first end of the active element One end is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line; a pixel electrode is electrically connected to the second end of the active element; a common electrode overlaps on the pixel electrode; a touch signal line, electrically connected to the common electrode; and a conductive pattern, arranged beside the touch signal line, electrically isolated from the touch signal line, and used to communicate with a gap objects overlap, wherein the gate line has a curved section; in the plan view of the pixel array substrate, the curved section of the gate line bypasses the conductive pattern and is spaced from the conductive pattern. The pixel array substrate as described in claim 6, wherein the touch signal line has a curved line; in the plan view of the pixel array substrate, the curved line of the gate line and the curved line of the touch signal line Segments partially overlap. The pixel array substrate as claimed in claim 6, wherein the conductive pattern is electrically connected to the pixel electrode. A pixel array substrate, comprising: a gate line; a data line interlaced with the gate line; an active element having a first end, a second end and a control end, wherein the active element's The first end is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line; a pixel electrode is electrically connected to the second end of the active element; a common electrode, Overlapping the pixel electrode; a touch signal line, electrically connected to the common electrode; and a conductive pattern, arranged beside the touch signal line, electrically isolated from the touch signal line, and used to communicate with a The spacers overlap, wherein the conductive pattern has a plurality of main parts; in the plan view of the pixel array substrate, the main parts are on different sides of at least one of the data line and the gate line. The pixel array substrate as described in claim 9, wherein the main parts of the conductive pattern include a first main part and a second main part; in the plan view of the pixel array substrate, the first main part of the conductive pattern The first main part and the second main part are respectively located on opposite sides of the data line. The pixel array substrate as described in claim 10, wherein the main parts of the conductive pattern further include a third main part; In the view, the first main portion and the third main portion of the conductive pattern are respectively located on opposite sides of the gate line. The pixel array substrate as claimed in claim 9, wherein the conductive pattern is electrically connected to the pixel electrode. A pixel array substrate, comprising: a gate line; a data line interlaced with the gate line; an active element having a first end, a second end and a control end, wherein the active element's The first end is electrically connected to the data line, and the control end of the active element is electrically connected to the gate line; a pixel electrode is electrically connected to the second end of the active element; a common electrode, Overlapping the pixel electrode; a touch signal line, electrically connected to the common electrode; and a conductive pattern, arranged beside the touch signal line, electrically isolated from the touch signal line, and arranged on the active element outside, and used to overlap with a spacer, wherein the conductive pattern is electrically connected to the pixel electrode.

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