Array substrate and touch display device
By designing the gate scan lines as pulse waveforms and wiring them alternately, the coupling problem between the gate scan lines and the common electrode blocks in the touch display panel is solved, the display horizontal stripes are improved, and the display quality is enhanced.
Patent Information
- Application Number
- CN202422783954.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-15
AI Technical Summary
During the display scanning process of the existing touch display panel, the gate scanning lines and the common electrode blocks are coupled, resulting in the problem of horizontal stripes on the display.
The gate scan line is designed to be in the shape of a pulse waveform and is horizontally wired on the touch blocks of the touch array. The peak segments and trough segments are alternately wired to reduce the coupling effect.
The problem of horizontal stripes on the touch display panel is effectively improved, and the display effect is enhanced.
Smart Images
Figure CN223486677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of texture processing technology for touch display devices, and in particular to an array substrate and a touch display device. Background Technology
[0002] Touchscreen displays reduce the thickness of the touch display module by integrating touch and display driver (TDDI), thereby reducing the overall thickness of the panel.
[0003] In the design of self-capacitive in-cell display devices, touch electrodes and common electrodes are reused, typically in block form. During the display period, the touch electrodes receive signals from the common electrodes, and during the touch period, they receive touch scanning signals. Existing in-cell touch panels generally employ TDDI's intra-frame touch detection (LHB) touch method, where display and touch are time-divided by timing control. For example, the common electrode layer of the display panel is divided into multiple common electrode blocks, and each common electrode block is electrically connected to a control IC (Integrated Circuit) via a trace. The common electrode blocks are reused as touch electrodes. In display mode, the common electrode blocks receive common voltage signals; in touch mode, they act as touch driving electrodes and transmit touch driving signals. That is, in one time cycle of TDDI control, part of the time is used for display control, and part of the time is used for touch scanning. Within a display frame, touch scans multiple frames, i.e., touch phases (TP TERM, Touch PhaseTerm) are inserted in segments at intervals during the display process.
[0004] During the scanning process in the display stage, the gate scan line will couple to the common electrode while driving the pixel. In particular, when the corresponding VCOM block is also arranged in a row, the coupling will affect the voltage of the common electrode, causing horizontal lines to appear on the display screen. Utility Model Content
[0005] In existing touch display panels, during the display scanning process, the entire gate scan line couples with the common electrode block, causing horizontal lines to appear on the touch display screen.
[0006] To address the aforementioned issues, an array substrate and a touch display device are proposed. By pulse-wiring the gate scan line on the touch block of the touch array, the coupling effect between the same gate scan line and the touch block during the display stage is greatly reduced, thus improving the display stripe problem caused by coupling of the touch display panel.
[0007] In a first aspect, an array substrate includes:
[0008] Multiple touch blocks;
[0009] Multiple gate scan lines;
[0010] The multiple touch blocks are arranged vertically or horizontally in a continuous manner to form a touch array;
[0011] The multiple gate scan lines are sequentially routed on the touch array, and:
[0012] Each of the gate scan lines is in the shape of a pulse waveform and is laterally routed on the touch block of the touch array.
[0013] In conjunction with the array substrate described in this utility model, in a first possible embodiment, the gate scan line includes:
[0014] Crests and troughs;
[0015] The peak segment wiring is on the first touch block, and the trough segment wiring is on the second touch block. The first touch block and the second touch block are adjacent in the same row of the touch array.
[0016] In conjunction with the array substrate described in this utility model, in a second possible embodiment, the gate scan line includes:
[0017] Crests and troughs;
[0018] The peak segment is routed on the third touch block, and the trough segment is routed on the fourth touch block. The third touch block is located on the first row of the touch array, and the fourth touch block is located on the second row of the touch array. The first row and the second row are adjacent to each other.
[0019] In conjunction with the array substrate described in this utility model, in a third possible embodiment, the gate scan line includes:
[0020] Crests and troughs;
[0021] The crest section wiring is on the first group of touch blocks, and the trough section wiring is on the second group of touch blocks. The first group of touch blocks and the second group of touch blocks are adjacent in the same row of the touch array.
[0022] The first group of touch blocks and the second group of touch blocks each include multiple touch blocks.
[0023] In conjunction with the array substrate described in this utility model, in a fourth possible embodiment, the gate scan line includes:
[0024] Crests and troughs;
[0025] The peak segment is routed on the third group of touch blocks, the trough segment is routed on the fourth group of touch blocks, the third group of touch blocks is located on the third row of the touch array, the fourth group of touch blocks is located on the fourth row of the touch array, and the third row is adjacent to the fourth row.
[0026] The third group of touch blocks and the fourth group of touch blocks each include multiple touch blocks.
[0027] In conjunction with the third and fifth possible embodiments of this utility model, the width of the peak segment and the trough segment are the same as the number of touch blocks in the first group of touch blocks and the second group of touch blocks.
[0028] In conjunction with the fourth and sixth possible embodiments of this utility model, the widths of the peak segments and the trough segments, and the number of touch blocks in the third and fourth groups of touch blocks are the same.
[0029] In a second aspect, a touch display device includes the array substrate described in the first aspect.
[0030] The array substrate and touch display device described in this utility model greatly reduce the coupling effect between the same gate scan line and the touch block during the display stage by pulse wiring the gate scan line on the touch block of the touch array, thereby improving the display stripe problem caused by the coupling of the touch display panel. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the touch block distribution in an existing touch display device;
[0033] Figure 2 This is a schematic diagram of the gate scan line wiring of the touch display device of this utility model;
[0034] The numbers in the attached diagram represent the following locations: 100 – peak segment, 200 – trough segment. Detailed Implementation
[0035] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this utility model.
[0036] Unless otherwise defined, all 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 pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.
[0040] In existing touch display panels, during the display scanning process, the entire gate scan line couples with the common electrode block, causing horizontal lines to appear on the touch display screen.
[0041] To address the above problems, an array substrate and a touch display device are proposed.
[0042] Example 1
[0043] In a first aspect, an array substrate includes multiple touch blocks and multiple gate scan lines; the multiple touch blocks are arranged continuously in a vertical or horizontal manner to form a touch array; the multiple gate scan lines are sequentially wired on the touch array, and: the shape of each gate scan line is a pulse waveform shape, and it is horizontally wired on the touch blocks of the touch array.
[0044] like Figure 1 , Figure 1 This is a schematic diagram of the touch block distribution in an existing touch display device. The touch display device includes multiple touch blocks, and the existing gate scan lines are straight lines, which are wired on the touch blocks in the same row of the touch array.
[0045] In this embodiment, the gate scan line is designed as a pulse waveform and routed on the touch block. By routing the gate scan line in a pulse on the touch block of the touch array, the coupling effect between the same gate scan line and the touch block during the display stage is greatly reduced, thus improving the display stripe problem caused by the coupling of the touch display panel.
[0046] In a preferred embodiment, such as Figure 2 , Figure 2 This is a schematic diagram of the gate scan line wiring of the touch display device of this utility model; the gate scan line includes a peak segment 100 and a trough segment 200; the peak segment 100 is wired on the first touch block, and the trough segment 200 is wired on the second touch block. The first touch block and the second touch block are adjacent in the same row of the touch array.
[0047] In this embodiment, the gate scan line is located in the middle of a row of touch blocks in the touch array. The peak segment 100 and the trough segment 200 are both located on the same row of touch blocks. The widths of the peak segment 100 and the trough segment 200 are approximately equal to the width of the corresponding touch block. Figure 1 Gate scan lines G2 and G3 in the diagram.
[0048] In a preferred embodiment, the gate scan line includes a peak segment 100 and a trough segment 200; the peak segment 100 is wired on the third touch block, the trough segment 200 is wired on the fourth touch block, the third touch block is located on the first row of the touch array, the fourth touch block is located on the second row of the touch array, and the first row and the second row are adjacent to each other.
[0049] In this embodiment, the gate scan line is located at the edge of a row of touch blocks in the touch array. The peak segment 100 and the trough segment 200 are located on touch blocks in different rows of the touch array, and the widths of the peak segment 100 and the trough segment 200 are approximately equal to the width of the corresponding touch block. For example... Figure 1 Gate scan line G4 in the middle.
[0050] In a preferred embodiment, the gate scan line includes: a peak segment 100 and a trough segment 200;
[0051] The peak segment 100 is routed on the first group of touch blocks, and the trough segment 200 is routed on the second group of touch blocks. The first group of touch blocks and the second group of touch blocks are adjacent in the same row of the touch array. The first group of touch blocks and the second group of touch blocks each include multiple touch blocks.
[0052] In this embodiment, the gate scan line is located in the middle part of a row of touch blocks in the touch array. The peak segment 100 and the trough segment 200 are both located on the same row of touch blocks. The width of the peak segment 100 and the trough segment 200 spans multiple touch blocks. The number of touch blocks spanned by the width of the peak segment 100 and the trough segment 200 can be equal or unequal.
[0053] In a preferred embodiment, the gate scan line includes a peak segment 100 and a trough segment 200. The peak segment 100 is routed on a third group of touch blocks, and the trough segment 200 is routed on a fourth group of touch blocks. The third group of touch blocks is located in the third row of the touch array, and the fourth group of touch blocks is located in the fourth row of the touch array, with the third and fourth rows adjacent to each other. The third and fourth groups of touch blocks each include multiple touch blocks. In this embodiment, the gate scan line is located at the edge of a row of touch blocks in the touch array, and the peak segment 100 and the trough segment 200 are both located on touch blocks in different rows of the touch array. The width of the peak segment 100 and the trough segment 200 spans multiple touch blocks, and the number of touch blocks spanned by the width of the peak segment 100 and the trough segment 200 can be equal or unequal.
[0054] Furthermore, the width of the peak segment 100 and the trough segment 200 are the same, and the number of touch blocks in the first group of touch blocks and the second group of touch blocks are the same.
[0055] Furthermore, the widths of the peak segment 100 and the trough segment 200 are the same, and the number of touch blocks in the third and fourth groups of touch blocks is the same.
[0056] Example 2
[0057] In a second aspect, a touch display device includes an array substrate as described in the first aspect.
[0058] The array substrate and touch display device implementing this utility model greatly reduce the coupling effect between the same gate scan line and the touch block during the display stage by pulse wiring the gate scan line on the touch block of the touch array, thereby improving the display stripe problem caused by the coupling of the touch display panel.
[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An array substrate, characterized in that, include: Multiple touch blocks; Multiple gate scan lines; The multiple touch blocks are arranged vertically or horizontally in a continuous manner to form a touch array; The multiple gate scan lines are sequentially routed on the touch array, and: Each of the gate scan lines is in the shape of a pulse waveform and is laterally routed on the touch block of the touch array.
2. The array substrate according to claim 1, characterized in that, The gate scan line includes: Crests and troughs; The peak segment wiring is on the first touch block, and the trough segment wiring is on the second touch block. The first touch block and the second touch block are adjacent in the same row of the touch array.
3. The array substrate according to claim 1, characterized in that, The gate scan line includes: Crests and troughs; The peak segment is routed on the third touch block, and the trough segment is routed on the fourth touch block. The third touch block is located on the first row of the touch array, and the fourth touch block is located on the second row of the touch array. The first row and the second row are adjacent to each other.
4. The array substrate according to claim 1, characterized in that, The gate scan line includes: Crests and troughs; The crest section wiring is on the first group of touch blocks, and the trough section wiring is on the second group of touch blocks. The first group of touch blocks and the second group of touch blocks are adjacent in the same row of the touch array. The first group of touch blocks and the second group of touch blocks each include multiple touch blocks.
5. The array substrate according to claim 1, characterized in that, The gate scan line includes: Crests and troughs; The peak segment is routed on the third group of touch blocks, the trough segment is routed on the fourth group of touch blocks, the third group of touch blocks is located on the third row of the touch array, the fourth group of touch blocks is located on the fourth row of the touch array, and the third row is adjacent to the fourth row. The third group of touch blocks and the fourth group of touch blocks each include multiple touch blocks.
6. The array substrate according to claim 4, characterized in that, The width of the peak segment and the trough segment are the same as the number of touch blocks in the first group of touch blocks and the second group of touch blocks.
7. The array substrate according to claim 5, characterized in that, The width of the peak segment and the trough segment are the same as the number of touch blocks in the third group and the fourth group of touch blocks.
8. A touch display device, characterized in that, Includes the array substrate as described in any one of claims 1-7.