Array substrate, touch display panel and touch display device

Abstract

The utility model discloses an array substrate, a touch display panel and a touch display device. The array substrate comprises a glass substrate, a plurality of pixel modules, a common electrode layer and a driving IC. The pixel module is arranged on the glass substrate; the common electrode layer comprises a plurality of touch electrode blocks; each touch electrode block covers a plurality of pixel modules; the touch electrode blocks are in first electric connection with the driving IC through the touch leads, and the first electric connection is that the touch leads are directly and electrically connected with the driving IC through the SD layer in the Fanout area. The touch leads of the touch electrode blocks are directly and electrically connected with the driving IC through the SD layer, the pixel data leads of the pixel modules are electrically connected at intervals, and the touch leads or the pixel data lines are directly connected to the IC of the driving IC through the SD metal wires instead of via hole connection. And the phenomenon that the display brightness and darkness of the touch electrode blocks are inconsistent due to through hole process fluctuation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, and in particular to an array substrate, a touch display panel and a touch display device. Background Art

[0002] Flat display devices such as Liquid Crystal Display (LCD) are widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, desktop computers, etc. due to their advantages of high image quality, power saving, thin body and wide application range, becoming the mainstream of display devices.

[0003] In recent years, touch LCD displays integrating display and touch technology have been widely developed. However, in actual products, there will be display abnormalities such as weak squares with inconsistent brightness. The main reason is that existing touch LCD display products have weak squares, that is, the display abnormality of the touch block displaying a large difference in brightness. One of the reasons is that the impedance of the RX signal line connecting the touch block is too large. Specifically, there are too many bridging vias in the TP line, that is, the RX line. A slight fluctuation in the via process will cause poor via connection, resulting in inconsistent brightness of the touch electrode block. Utility Model Content

[0004] In existing liquid crystal display screens, due to poor via connection, the display brightness of the touch electrodes is inconsistent.

[0005] In view of the above problems, an array substrate, a touch display panel and a touch display device are proposed. The touch leads of the touch electrode blocks are electrically connected to the driver IC directly through the SD layer, and the pixel data leads of the pixel module are electrically connected at intervals. The touch leads or pixel data lines are directly connected to the driver IC through the SD metal wiring instead of vias, thereby reducing the phenomenon of inconsistent brightness of the touch electrode blocks caused by fluctuations in the via process.

[0006] In a first aspect, an array substrate includes:

[0007] Glass substrate;

[0008] Multiple pixel modules;

[0009] A common electrode layer;

[0010] Driver IC;

[0011] The pixel module is arranged on the glass substrate;

[0012] The common electrode layer includes a plurality of touch electrode blocks;

[0013] Each of the touch electrode blocks covers a plurality of the pixel modules;

[0014] The touch electrode block is first electrically connected to the driver IC via a touch lead, and the first electrical connection is:

[0015] The touch lead is electrically connected to the driver IC directly through the SD layer in the Fanout region.

[0016] In combination with the array substrate described in the first aspect of the utility model, in a first possible implementation manner, the array substrate further includes:

[0017] a plurality of pixel data lines;

[0018] One end of the pixel data line is electrically connected to the corresponding pixel module, and the other end is second electrically connected to the driver IC in the Fanout region.

[0019] In combination with the first possible implementation manner of the first aspect of the utility model, in a second possible implementation manner, a plurality of the touch leads form a touch lead array;

[0020] Each touch lead in the touch lead array is connected to a corresponding touch electrode block in the touch electrode block array through a via hole.

[0021] In combination with the second possible implementation manner of the first aspect of the utility model, in a third possible implementation manner, the touch lead and the pixel data line of the pixel module are arranged at intervals from each other.

[0022] In combination with the third possible implementation manner of the first aspect of the utility model, in a fourth possible implementation manner, the pixel module includes:

[0023] R pixel, G pixel and B pixel;

[0024] The R pixel, the G pixel, and the B pixel are electrically connected to the driving IC through corresponding pixel data lines, respectively.

[0025] In combination with the fourth possible implementation manner of the first aspect of the utility model, in a fifth possible implementation manner, the second electrical connection is:

[0026] The R pixel, the G pixel, and the B pixel are electrically connected to the driver IC through interval vias in the Fanout region.

[0027] In combination with the third possible implementation manner of the first aspect of the utility model, in a sixth possible implementation manner, the interval arrangement is:

[0028] Touch leads, pixel data leads of R pixels, pixel data leads of G pixels, pixel data leads of B pixels, and touch leads.

[0029] In combination with the fifth possible implementation manner of the first aspect of the utility model, in a seventh possible implementation manner, the spaced vias are electrically connected as follows:

[0030] The pixel data leads of the R pixels are electrically connected to the driving IC through via holes, the pixel data leads of the G pixels are directly electrically connected to the driving IC through the SD layer, and the pixel data leads of the B pixels are electrically connected to the driving IC through via holes.

[0031] In a second aspect, a touch display panel includes the array substrate described in the first aspect.

[0032] In a third aspect, a touch display device comprises the touch display panel according to the second aspect.

[0033] The array substrate, touch display panel and touch display device described in the utility model are implemented by electrically connecting the touch leads of the touch electrode block to the driver IC directly through the SD layer, and electrically connecting the pixel data leads of the pixel module at intervals. The touch leads or pixel data lines are not connected by vias, but are directly connected to the driver IC through SD metal traces, thereby reducing the phenomenon of inconsistent brightness of the touch electrode block caused by fluctuations in the via process. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 is a schematic diagram of a touch display device;

[0036] Figure 2 It is a schematic diagram of electrical connection of the touch electrode block in the present invention;

[0037] Figure 3 This is a schematic diagram of the Fanout area circuit connection in the utility model. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the utility model.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present 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 should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the existing liquid crystal display screen, due to the poor connection of the via hole 230, the display brightness of the touch electrode block 210 is inconsistent.

[0044] In view of the above problems, an array substrate, a touch display panel 200 and a touch display device are proposed.

[0045] In a first aspect, an array substrate, such as Figure 2 , Figure 2The electrical connection diagram of the touch electrode block 210 in the present invention includes a glass substrate, a plurality of pixel modules 400, a common electrode layer, and a driver IC 300; the pixel module 400 is arranged on the glass substrate; the common electrode layer includes a plurality of touch electrode blocks 210; each touch electrode block 210 covers a plurality of pixel modules 400; the touch electrode block 210 is first electrically connected to the driver IC 300 through a touch lead 220 (RX), and the first electrical connection is: the touch lead 220 (RX) is directly electrically connected to the driver IC 300 through the SD layer in the Fanout area, such as Figure 3 , Figure 3 This is a schematic diagram of the Fanout area circuit connection in the utility model.

[0046] The fanout area refers to the portion between the bottom of the AA area of ​​the display panel 200 and the driver IC 300. The AA area refers to the effective display area of ​​the display panel 200.

[0047] The plurality of touch electrode blocks 210 form a plurality of arrays of touch electrode blocks 210. The common electrode layer is used for touch control in the touch control stage.

[0048] In this embodiment, all the touch leads 220 (RX) of the touch electrode block 210 are electrically connected directly through the SD layer metal. By electrically connecting the touch leads 220 (RX) of the touch electrode block 210 and the driver IC 300 directly through the SD layer, the pixel data leads of the pixel module 400 are electrically connected at intervals, and the touch leads 220 (RX) are directly connected to the IC of the driver IC 300 through the SD metal wiring instead of the via 230, thereby reducing the phenomenon of inconsistent brightness of the touch electrode block 210 caused by the process fluctuation of the via 230.

[0049] Furthermore, the array substrate further includes a plurality of pixel data lines 410 (Sn); one end of the pixel data line 410 (Sn) is electrically connected to the corresponding pixel module 400, and the other end is second electrically connected to the driver IC 300 in the Fanout region. The second electrical connection of the pixel data line 410 (Sn) of the pixel module 400 is an alternate electrical connection.

[0050] Furthermore, a plurality of touch leads 220 (RX) form a touch lead 220 (RX) array; each touch lead 220 (RX) in the touch lead 220 (RX) array is connected to a corresponding touch electrode block 210 in the touch electrode block 210 array through a via 230 .

[0051] Each touch lead 220 (RX) is electrically connected to a corresponding touch electrode block 210 in the touch electrode block 210 array through a via 230:

[0052] like Figure 2 Each touch electrode block 210 has a plurality of touch leads 220 (RX) passing through it, but only one of the leads is connected to the via hole 230 of the touch electrode block 210 .

[0053] Furthermore, if Figure 3 , the touch lead 220 (RX) and the pixel data line 410 (Sn) of the pixel module 400 are arranged at intervals.

[0054] Further, the pixel module 400 includes: R pixels, G pixels and B pixels;

[0055] The R pixel, the G pixel, and the B pixel are electrically connected to the driving IC 300 through corresponding pixel data lines 410 (Sn), respectively.

[0056] Each pixel module 400 includes an R pixel, a G pixel, and a B pixel, which are electrically connected to the driving IC 300 through corresponding pixel data lines 410 (Sn).

[0057] Furthermore, the second electrical connection is that the R pixel, the G pixel and the B pixel are electrically connected to the driver IC 300 in the Fanout region through the via 230 .

[0058] Furthermore, the arrangement is as follows: a touch lead 220 (RX), a pixel data lead of an R pixel, a pixel data lead of a G pixel, a pixel data lead of a B pixel, and a touch lead 220 (RX).

[0059] The above-mentioned interval arrangement is only one arrangement unit, and the actual display panel 200 is composed of a plurality of arrangement units.

[0060] Furthermore, the spaced vias 230 are electrically connected as follows: the pixel data leads of the R pixels are electrically connected to the driver IC 300 through the vias 230, the pixel data leads of the G pixels are directly electrically connected to the driver IC 300 through the SD layer, and the pixel data leads of the B pixels are electrically connected to the driver IC 300 through the vias 230. The pixel data leads of the pixel module 400 are electrically connected in spaced intervals, and the pixel data line 410 (Sn) is not connected through the vias 230, but is directly connected to the IC of the driver IC 300 through the SD metal wiring, thereby reducing the phenomenon of inconsistent brightness of the touch electrode block 210 caused by the process fluctuation of the vias 230.

[0061] like Figure 3 , the touch lead RX line is no longer connected to the bridge via in the Fanout area (i.e. between the bottom of AA and IC), and all are connected to the driver IC with the same SD metal line, which can reduce the occurrence of the above phenomenon. Figure 3The touch leads RX1 and RX2 are directly connected to the driver IC using the SD layer metal, while the pixel data lines S1, S3, S4, and S6 are bridged through vias to achieve the via connection between the SD and GATE lines. The black dots are vias.

[0062] In a second aspect, a touch display panel includes the array substrate of the first aspect.

[0063] In a third aspect, a touch display device comprises the touch display panel of the second aspect.

[0064] The array substrate, touch display panel and touch display device of the utility model are implemented by electrically connecting the touch leads of the touch electrode block to the driver IC directly through the SD layer, and electrically connecting the pixel data leads of the pixel module at intervals. The touch leads or pixel data lines are not connected by vias, but are directly connected to the driver IC through SD metal traces, thereby reducing the phenomenon of inconsistent brightness of the touch electrode block caused by fluctuations in the via process.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An array substrate, characterized in that: include: Glass substrate; Multiple pixel modules; A common electrode layer; Driver IC; The pixel module is arranged on the glass substrate; The common electrode layer includes a plurality of touch electrode blocks; Each of the touch electrode blocks covers a plurality of the pixel modules; The touch electrode block is first electrically connected to the driver IC via a touch lead, and the first electrical connection is: The touch lead is electrically connected to the driver IC directly through the SD layer in the Fanout region.

2. The array substrate according to claim 1, characterized in that: The array substrate further includes: A plurality of pixel data lines; One end of the pixel data line is electrically connected to the corresponding pixel module, and the other end is second electrically connected to the driver IC in the Fanout region.

3. The array substrate according to claim 2, characterized in that: A plurality of the touch leads form a touch lead array; Each touch lead in the touch lead array is connected to a corresponding touch electrode block in the touch electrode block array through a via hole.

4. The array substrate according to claim 3, characterized in that: The touch control leads and the pixel data lines of the pixel module are arranged at intervals.

5. The array substrate according to claim 4, characterized in that: The pixel module comprises: R pixel, G pixel and B pixel; The R pixel, the G pixel, and the B pixel are electrically connected to the driving IC through corresponding pixel data lines, respectively.

6. The array substrate according to claim 5, characterized in that: The second electrical connection is: The R pixel, the G pixel, and the B pixel are electrically connected to the driver IC through interval vias in the Fanout region.

7. The array substrate according to claim 4, characterized in that: The interval arrangement is: Touch leads, pixel data leads of R pixels, pixel data leads of G pixels, pixel data leads of B pixels, and touch leads.

8. The array substrate according to claim 6, characterized in that: The spaced vias are electrically connected as follows: The pixel data leads of the R pixels are electrically connected to the driving IC through vias, the pixel data leads of the G pixels are directly electrically connected to the driving IC through the SD layer, and the pixel data leads of the B pixels are electrically connected to the driving IC through vias.

9. A touch display panel, characterized in that: The invention comprises the array substrate according to any one of claims 1 to 8.

10. A touch display device, characterized in that: Comprising the touch display panel as claimed in claim 9.

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