Pixel array substrate

Abstract

This invention discloses a pixel array substrate, comprising gate lines, data lines, active elements, pixel electrodes, a common electrode, touch signal lines, and conductive patterns. The data lines and gate lines are alternately arranged. Each 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 lines are electrically connected to the common electrode. The conductive patterns are disposed beside the touch signal lines, electrically isolated from the touch signal lines, and used to overlap with spacers.

Description

Technical Field

[0001] This invention relates to a pixel array substrate. Background Technology

[0002] Displays are increasingly widely used, found in everything from home audio-visual entertainment and public information displays to gaming monitors and portable electronic products. In recent years, most displays have also incorporated touch functionality. Touchscreen technology can be broadly categorized into out-cell, on-cell, and in-cell touch. In-cell touch technology offers the advantage of being easily made thinner, and has therefore gradually become the mainstream of touchscreen displays in recent years. However, the data lines and / or gate lines integrated into the display, along with the conductive patterns used to support spacers, are prone to coupling effects, leading to light leakage problems. Summary of the Invention

[0003] This invention provides a pixel array substrate with excellent performance.

[0004] A pixel array substrate according to an embodiment of the present invention includes gate lines, data lines, active elements, pixel electrodes, common electrodes, touch signal lines, and conductive patterns. The data lines and gate lines are alternately arranged. Each 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, electrically isolated from the touch signal line, and used to overlap with a spacer. The data lines have curved segments. In a top view of the pixel array substrate, the curved segments of the data lines bypass the conductive pattern and are spaced apart from it.

[0005] A pixel array substrate according to an embodiment of the present invention includes gate lines, data lines, active elements, pixel electrodes, common electrodes, touch signal lines, and conductive patterns. The data lines and gate lines are alternately arranged. Each 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, electrically isolated from the touch signal line, and used to overlap with a spacer. The gate lines have curved segments. In a top view of the pixel array substrate, the curved segments of the gate lines bypass the conductive pattern and are spaced apart from it.

[0006] A pixel array substrate according to an embodiment of the present invention includes gate lines, data lines, active elements, pixel electrodes, common electrodes, touch signal lines, and conductive patterns. The data lines and gate lines are alternately arranged. Each 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 lines, and the control end of the active element is electrically connected to the gate lines. The pixel electrodes are electrically connected to the second ends of the active elements. The common electrodes overlap the pixel electrodes. The touch signal lines are electrically connected to the common electrodes. The conductive patterns are disposed beside the touch signal lines, electrically isolated from the touch signal lines, and overlap with spacers. The conductive patterns have multiple main portions. In a top view of the pixel array substrate, the multiple main portions are on different sides of at least one of the data lines and gate lines.

[0007] A pixel array substrate according to an embodiment of the present invention includes gate lines, data lines, active elements, pixel electrodes, common electrodes, touch signal lines, and conductive patterns. The data lines and gate lines are alternately arranged. Each 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 with 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 overlaps with a spacer. The conductive pattern is electrically connected to the pixel electrode. Attached Figure Description

[0008] Figure 1 This is a top view of a pixel array substrate 100 according to an embodiment of the present invention;

[0009] Figure 2 This is a cross-sectional schematic diagram of a display panel 10 according to an embodiment of the present invention;

[0010] Figure 3 This is a top view of a pixel array substrate 100A according to another embodiment of the present invention;

[0011] Figure 4 This is a top view schematic diagram of a pixel array substrate 100B according to another embodiment of the present invention;

[0012] Figure 5 This is a top view of a pixel array substrate 100C according to another embodiment of the present invention;

[0013] Figure 6 This is a top view of a pixel array substrate 100D according to an embodiment of the present invention;

[0014] Figure 7 This is a top view of a pixel array substrate 100E according to another embodiment of the present invention;

[0015] Figure 8This is a top view of a pixel array substrate 100F according to another embodiment of the present invention.

[0016] Symbol Explanation

[0017] 10: Display Panel

[0018] 100, 100A, 100B, 100C, 100D, 100E, 100F: Pixel array substrate; 110: Substrate

[0019] 120: First metal layer

[0020] 122, 122A: Gate lines

[0021] 122a, 142a, 162a: Curved segments

[0022] 130: First insulating layer

[0023] 140: Second metal layer

[0024] 142, 142B, 142C, 142D: Data cables

[0025] 142b, 162b: Broken line segment

[0026] 150: Second insulation layer

[0027] 160: Third metal layer

[0028] 162: Touch signal line

[0029] 164, 164B, 164D, 164E, 164F: Conductive patterns; 164B-1, 164B-2, 164C-1, 164C-2, 164C-3, 164C-4: Main part; 170: First transparent conductive layer

[0030] 172: Common Electrode

[0031] 182: Third Insulation Layer

[0032] 184: Fourth Insulation Layer

[0033] 190: Second transparent conductive layer

[0034] 192: Pixel Electrode

[0035] 192a: Slit

[0036] 200: Opposing substrate

[0037] 300: Display medium

[0038] T: Active (Active) Component

[0039] Ta: First End

[0040] Tb: Second end

[0041] Tc: Control terminal

[0042] PS: Spacer

[0043] I-I': section line Detailed Implementation

[0044] Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element references are used in the drawings and description to denote the same or similar parts.

[0045] It should 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 may be directly on or connected to the other element, or an intermediate element may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected to" another element, no intermediate element is present. As used herein, "connection" can refer to physical and / or electrical connection. Furthermore, "electrical connection" or "coupling" may involve the presence of other elements between the two elements.

[0046] As used herein, “about,” “approximately,” or “substantially” includes the value and the average value within an acceptable range of deviations from a particular value as determined by one of ordinary skill in the art, taking into account the measurement under discussion and a particular number of errors associated with the measurement (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, the use of “about,” “approximately,” or “substantially” herein may be chosen based on the optical, etched, or other properties to select a more acceptable range of deviations or standard deviations, and may not require a single standard deviation to apply to all properties.

[0047] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology and this invention, and will not be interpreted as having idealized or overly formal meanings unless expressly defined herein.

[0048] Figure 1 This is a top view of a pixel array substrate 100 according to an embodiment of the present invention.

[0049] Figure 2 This is a cross-sectional schematic diagram of a display panel 10 according to an embodiment of the present invention. Figure 2 correspond Figure 1The section line I-I'. Figure 1 Omit Figure 2 The base is 110.

[0050] Please refer to Figure 1 and Figure 2 The pixel array substrate 100 includes a substrate 110. The substrate 110 is used to support other components of the pixel array substrate 100. For example, in this embodiment, the substrate 110 may be made of glass, quartz, organic polymer, or opaque / reflective material (e.g., wafer, ceramic, or other suitable material), or other suitable material.

[0051] The pixel array substrate 100 also includes gate lines 122 disposed on the substrate 110. The pixel array substrate 100 also includes data lines 142, which are interleaved with the gate lines 122. For example, in this embodiment, the gate lines 122 and data lines 142 may belong to different first metal layers 120 and second metal layers 140, respectively, wherein a first insulating layer 130 is provided between the first metal layer 120 and the second metal layer 140, but the present invention is not limited thereto.

[0052] The pixel array substrate 100 also includes an active element T, having a first terminal Ta, a second terminal Tb, and a control terminal Tc. The first terminal Ta of the active element T is electrically connected to the data line 142, and the control terminal Tc of the active element T is electrically connected to the gate line 122. For example, in this embodiment, the active element T may include a thin-film transistor (TFT). The first terminal Ta, the second terminal Tb, and the control terminal Tc may be the source, drain, and gate of the TFT, respectively. The TFT also includes a channel (not shown), wherein the source and drain are electrically connected to two different regions of the channel, respectively. In this embodiment, the gate of the TFT may be, for example, located in the first metal layer 120, and the source and drain of the TFT may be, for example, located in the second metal layer 140. The first insulating layer 130 may be, for example, a gate insulating layer disposed between the channel and the gate, but the present invention is not limited thereto.

[0053] The pixel array substrate 100 also 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 element T. The common electrode 172 overlaps with the pixel electrode 192. For example, in this embodiment, the pixel electrode 192 has a plurality of slits 192a 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 an edge electric field to drive the display medium 300 (e.g., but not limited to: liquid crystal) to display an image. The pixel array substrate 100 also includes a touch signal line 162 electrically connected to the common electrode 172. During the touch time interval, the common electrode 172 is used as a touch sensing pad.

[0054] In this embodiment, the pixel array substrate 100 further includes a second insulating layer 150 disposed on the second metal layer 140, a third metal layer 160 disposed on the second insulating layer 150, and the touch signal line 162, for example, belongs to the third metal layer 160; the pixel array substrate 100 further includes a third insulating layer 182 disposed on the third metal layer 160; the pixel array substrate 100 further includes a first transparent conductive layer 170 disposed on the third insulating layer 182, and the common electrode 172, for example, belongs to the first transparent conductive layer 170; the pixel array substrate 100 further includes a fourth insulating layer 184 disposed on the first transparent conductive layer 170; the pixel array substrate 100 further includes a second transparent conductive layer 190 disposed on the fourth 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.

[0055] 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.

[0056] The pixel array substrate 100 also includes a conductive pattern 164 disposed next to 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, a counter substrate 200, and a display medium 300 disposed between the pixel array substrate 100 and the counter substrate 200; the spacer PS is disposed between the counter substrate 200 and the pixel array substrate 100 to maintain the cell gap of the display panel 10, and the conductive pattern 164 is used as a platform for the spacer PS to stand on.

[0057] For example, in this embodiment, the conductive pattern 164 and the touch signal line 162 belong to the same third metal layer 160, and the conductive pattern 164 and the touch signal line 162 are structurally separated. Furthermore, in this embodiment, the conductive pattern 164 is, for example, floating, but the invention is not limited thereto.

[0058] Please refer to Figure 1 It is worth noting that the data line 142 has a curved segment 142a. In a top view of the pixel array substrate 100, the curved segment 142a of the data line 142 bypasses the conductive pattern 164 and is spaced apart from the conductive pattern 164. For example, in this embodiment, the curved segment 142a of the data line 142 may be an arc segment, but the present invention is not limited thereto.

[0059] In this embodiment, the touch signal line 162 has a curved segment 162a. In a top view of the pixel array substrate 100, the curved segment 162a of the touch signal line 162 and the curved segment 142a of the data line 142 respectively pass around the conductive pattern 164 via opposite sides of the conductive pattern 164. For example, in this embodiment, the curved segment 162a of the touch signal line 162 may be an arc segment, but the present invention is not limited thereto.

[0060] In this embodiment, the data line 142 further has a broken line segment 142b, located next to the pixel electrode 192 and connected to the curved segment 142a. The touch signal line 162 also has a broken line segment 162b, connected to the curved segment 162a. In a top view of the pixel array substrate 100, the broken line segment 142b of the data line 142 and the broken line segment 162b of the touch signal line 162 may overlap, but the present invention is not limited thereto.

[0061] It is worth mentioning that since the data line 142 bypasses the conductive pattern 164 on which the spacer PS stands by using the curved segment 142a, the coupling effect between the conductive pattern 164 and the data line 142 can be reduced. As a result, the light leakage problem caused by the rotation of the display medium 300 (e.g., liquid crystal) due to the influence of the data line 142 on the conductive pattern 164 can be improved.

[0062] It must be noted that the following embodiments use the component reference numerals and some content from the foregoing embodiments, with the same reference numerals used to represent the same or similar components, and descriptions of the same technical content omitted. For explanations of the omitted parts, please refer to the foregoing embodiments; these will not be repeated in the following embodiments.

[0063] Figure 3 This is a top view of a pixel array substrate 100A according to another embodiment of the present invention.

[0064] Figure 3 The pixel array substrate 100A and Figure 1 The pixel array substrate 100 is similar, but the difference lies in the gate lines 122 and 122A. Please refer to... Figure 3 Specifically, in this embodiment, the gate line 122A has a curved segment 122a. In a top view of the pixel array substrate 100, the curved segment 122a of the gate line 122A bypasses the conductive pattern 164 and is spaced apart from the conductive pattern 164. For example, in this embodiment, the curved segment 122a of the gate line 122A may be an arc segment, but the present invention is not limited thereto.

[0065] Because the gate line 122A bypasses the conductive pattern 164 on which the spacer PS stands using the curved segment 122a, the coupling effect between the conductive pattern 164 and the gate line 122A is reduced. In this way, the influence of the gate line 122A on the conductive pattern 164 on the display medium 300 (see reference) is reduced. Figure 2 The light leakage problem caused by rotation can be improved.

[0066] In this embodiment, in the top view of the pixel array substrate 100A, the curved segment 122a of the gate line 122A and the curved segment 142a of the data line 142 may selectively partially overlap, but the present invention is not limited thereto. In this embodiment, in the top view of the pixel array substrate 100A, the curved segment 122a of the gate line 122A may selectively partially overlap with the curved segment 162a of the touch signal line 162, but the present invention is not limited thereto.

[0067] Figure 4 This is a top view schematic diagram of a pixel array substrate 100B according to another embodiment of the present invention. Figure 4 The pixel array substrate 100B and Figure 1 The pixel array substrate 100 is similar to the pixel array substrate 100, but the difference between the two is that the data lines 142 and 142B are different, and the conductive patterns 164 and 164B are different.

[0068] Please refer to Figure 4 Specifically, in this embodiment, the data line 142B may not have a curved segment 142a. The conductive pattern 164B may have multiple main portions 164B-1 and 164B-2. In a top view of the pixel array substrate 100B, the multiple 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 multiple 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 a top view of the pixel array substrate 100B, the first main portion 164B-1 and the second main portion 164B-2 are respectively on opposite sides of the data line 142B.

[0069] It is worth mentioning that, in this embodiment, by dividing the conductive pattern 164B into multiple main portions 164B-1 and 164B-2 located on opposite sides of the data line 142B, the overlap area and coupling effect between the conductive pattern 164B and the data line 142B can be reduced. In this way, the influence of the data line 142B on the conductive pattern 164B reduces the impact on the display medium 300 (see reference). Figure 2 The light leakage problem caused by rotation can be improved.

[0070] Figure 5This is a top view of a pixel array substrate 100C according to another embodiment of the present invention. Figure 5 Pixel array substrate 100C and Figure 1 The pixel array substrate 100 is similar to the pixel array substrate 100, but the difference between the two is that the data lines 142 and 142C are different, and the conductive patterns 164 and 164C are different.

[0071] Please refer to Figure 5 Specifically, in this embodiment, the data line 142C may not have a curved segment 142a. The conductive pattern 164C may have multiple main portions 164C-1, 164C-2, 164C-3, and 164C-4. In a top view of the pixel array substrate 100C, the multiple main portions 164C-1, 164C-2, 164C-3, and 164C-4 are on different sides of at least one of the data line 142C and the gate line 122.

[0072] For example, in this embodiment, the conductive pattern 164C has multiple main portions 164C-1, 164C-2, 164C-3, and 164C-4, including a first main portion 164C-1, a second main portion 164C-2, a third main portion 164C-3, and a fourth main portion 164C-4; in the top view of the pixel array substrate 100C, the first main portion 164C-1 and the second main portion 164C-2 are on opposite sides of the bit data line 142C and located on one side of the gate line 122. For example: top 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 (e.g., right side) and on opposite sides of the gate line 122 (e.g., top and bottom sides); in the top view of the pixel array substrate 100C, the third main part 164C-3 and the fourth main part 164C-4 are on opposite sides of the data line 142C and are located on the other side of the gate line 122 (e.g., bottom side).

[0073] Figure 6 This is a top view of a pixel array substrate 100D according to an embodiment of the present invention.

[0074] Figure 6 Pixel array substrate 100D and Figure 1 The pixel array substrate 100 is similar to the pixel array substrate 100, but the difference between the two is that the data lines 142 and 142D are different, and the conductive patterns 164 and 164D are different.

[0075] Please refer to Figure 6 Specifically, in this embodiment, the data line 142D may not have the curved segment 142a. The conductive pattern 164D may be electrically connected to the pixel electrode 192 instead of being floating.

[0076] It is worth mentioning that, in this embodiment, by electrically connecting the conductive pattern 164D to the pixel electrode 192, even though the conductive pattern 164D is coupled to the data line 142D / gate line 122, the conductive pattern 164D still has the same potential as the pixel electrode 192. Therefore, the conductive pattern 164D can be prevented from affecting the display medium 300 (see reference). Figure 2 This can cause adverse effects and thus improve the light leakage problem.

[0077] Figure 7 This is a top view of a pixel array substrate 100E according to another embodiment of the present invention. Figure 7 Pixel array substrate 100E and Figure 3 The pixel array substrate 100A is similar, the difference between the two is: Figure 7 In one embodiment, the conductive pattern 164E is electrically connected to the pixel electrode 192.

[0078] Figure 8 This is a top view of a pixel array substrate 100F according to another embodiment of the present invention. Figure 8 The pixel array substrate 100F and Figure 5 The pixel array substrate 100C is similar, the difference between the two is: Figure 8 In one embodiment, the conductive pattern 164F is electrically connected to the pixel electrode 192.

Claims

1. A pixel array substrate, comprising: Gate line; The data lines are arranged in an alternating pattern with the gate lines; An active element has a first terminal, a second terminal, and a control terminal, wherein the first terminal, the second terminal, and the control terminal are respectively the source, the drain, and the gate, wherein the first terminal of the active element is electrically connected to the data line, and the control terminal of the active element is electrically connected to the gate line. The pixel electrode is electrically connected to the second terminal of the active element; Shared electrode, overlapping the pixel electrode; The touch signal line is electrically connected to the common electrode; as well as A conductive pattern is disposed next to the touch signal line, electrically isolated from the touch signal line, and used to overlap with the spacer. The data line has a curved segment, and the touch signal line has a curved segment. In a top view of the pixel array substrate, the conductive pattern does not overlap with the gate line. The curved segment of the data line bypasses the conductive pattern and is separated from the conductive pattern. The curved segment of the touch signal line bypasses the conductive pattern.

2. The pixel array substrate as described in claim 1, wherein, In the top view of the pixel array substrate, the curved segment of the touch signal line and the curved segment of the data line respectively bypass the conductive pattern via opposite sides of the conductive pattern.

3. The pixel array substrate of claim 1, wherein the gate line has a curved segment; in a top view of the pixel array substrate, the curved segment of the gate line bypasses the conductive pattern and is spaced apart from the conductive pattern.

4. The pixel array substrate of claim 3, wherein in a top view of the pixel array substrate, the curved segment of the gate line partially overlaps with the curved segment of the data line.

5. The pixel array substrate of claim 1, wherein the conductive pattern is electrically connected to the pixel electrode.

6. A pixel array substrate, comprising: Gate line; The data lines are arranged in an alternating pattern with the gate lines; An active element has a first terminal, a second terminal, and a control terminal, wherein the first terminal of the active element is electrically connected to the data line, and the control terminal of the active element is electrically connected to the gate line; The pixel electrode is electrically connected to the second terminal of the active element; Shared electrode, overlapping the pixel electrode; The touch signal line is electrically connected to the common electrode; as well as A conductive pattern is disposed next to the touch signal line, electrically isolated from the touch signal line, and used to overlap with the spacer, wherein the gate line has a curved segment; in the top view of the pixel array substrate, the curved segment of the gate line bypasses the conductive pattern and is separated from the conductive pattern.

7. The pixel array substrate of claim 6, wherein the touch signal line has a curved segment; in a top view of the pixel array substrate, the curved segment of the gate line partially overlaps with the curved segment of the touch signal line.

8. The pixel array substrate of claim 6, wherein the conductive pattern is electrically connected to the pixel electrode.

9. A pixel array substrate, comprising: Gate line; The data lines are arranged in an alternating pattern with the gate lines; An active element has a first terminal, a second terminal, and a control terminal, wherein the first terminal of the active element is electrically connected to the data line, and the control terminal of the active element is electrically connected to the gate line; The pixel electrode is electrically connected to the second terminal of the active element; Shared electrode, overlapping the pixel electrode; The touch signal line is electrically connected to the common electrode; as well as A conductive pattern is disposed next to the touch signal line, electrically isolated from the touch signal line, and used to overlap with the spacer, wherein the conductive pattern has a plurality of main portions; in a top view of the pixel array substrate, these main portions are located on different sides of at least one of the data line and the gate line.

10. The pixel array substrate of claim 9, wherein the main portions of the conductive pattern include a first main portion and a second main portion; in a top view of the pixel array substrate, the first main portion and the second main portion of the conductive pattern are respectively located on opposite sides of the data line.

11. The pixel array substrate of claim 10, wherein the main portions of the conductive pattern further include a third main portion; in a top view of the pixel array substrate, the first main portion and the third main portion of the conductive pattern are respectively located on opposite sides of the gate line.

12. The pixel array substrate of claim 9, wherein the conductive pattern is electrically connected to the pixel electrode.

13. A pixel array substrate, comprising: Gate line; The data lines are arranged in an alternating pattern with the gate lines; An active element has a first terminal, a second terminal, and a control terminal, wherein the first terminal, the second terminal, and the control terminal are respectively the source, the drain, and the gate, wherein the first terminal of the active element is electrically connected to the data line, and the control terminal of the active element is electrically connected to the gate line. The pixel electrode is electrically connected to the second terminal of the active element; Shared electrode, overlapping the pixel electrode; The touch signal line is electrically connected to the common electrode; as well as A conductive pattern is disposed next to the touch signal line, electrically isolated from the touch signal line, and overlapped with the gap. The conductive pattern is electrically connected to the pixel electrode. The touch signal line has a curved segment; and In the top view of the pixel array substrate, the conductive pattern does not overlap with the gate line, and the curved segment of the touch signal line bypasses the conductive pattern.

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