Display panel and wearable display device

By optimizing the distance ratio and area ratio of conductive traces and identification marks on the display panel of wearable display devices, the problem of electrochemical corrosion was solved, achieving the effect of reducing corrosion risk while controlling the size of the display panel.

CN119400083BActive Publication Date: 2026-04-07WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In wearable display devices, irregular spaces restrict the layout of the display panel, which increases the likelihood of electrochemical corrosion affecting the identification marks. How to reduce electrochemical corrosion defects has become an urgent problem to be solved.

Method used

By setting the dynamic distance between conductive traces and identification marks on the substrate, particularly the ratio of the distance from the conductive trace to the substrate edge to the distance from the identification mark to the substrate edge ranging from 0.20 to 12.76, and combining this with the ratio range of the area of ​​the identification mark to the width of the conductive trace, the electrochemical corrosion risk of the conductive traces and their surroundings can be optimized.

Benefits of technology

This effectively reduces the possibility of corrosion in and around conductive traces, while controlling the size of the display panel to avoid electrochemical corrosion, especially corrosion of the ESD protection circuit.

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Abstract

This application discloses a display panel and a wearable display device. The display panel includes a substrate, conductive traces, and an identification mark. The conductive traces are used to transmit current. The identification mark is used to provide identification information for the display panel. Both the conductive traces and the identification mark are disposed on the substrate. The dynamic distance from the conductive traces to the edge of the substrate is L3 μm. The dynamic distance from the identification mark to the edge of the substrate is L4 μm. The ratio of L3 to L4 ranges from 0.20 to 12.76. By setting the dynamic distances from the conductive traces to the edge of the substrate and the dynamic distances from the identification mark to the edge of the substrate, this application can reduce the possibility of corrosion on the conductive traces and their surroundings, while also effectively controlling the size of the display panel.
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Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and a wearable display device. Background Technology

[0002] In related technologies, identification marks are set on display panels to identify information about the display panel. Generally, the film structure of the identification mark differs from the rest of the display panel structure, especially from the conductive traces of the display panel. It has now been found that the electrochemical corrosion of the conductive traces and surrounding structures is related to the location of the identification mark.

[0003] In some wearable display devices (such as watches or wristbands), irregular spaces impose greater constraints on the display panel layout, making identification marks more noticeable. Therefore, how to incorporate identification marks on the display panel to reduce the likelihood of electrochemical corrosion defects has become a pressing issue. Summary of the Invention

[0004] As a first aspect of this application, an embodiment of this application provides a display panel, comprising: a substrate; conductive traces for transmitting current; and an identification mark for providing identification information of the display panel; wherein the conductive traces and the identification mark are both disposed on the substrate; the dynamic distance from the conductive traces to the edge of the substrate is L3μm; the dynamic distance from the identification mark to the edge of the substrate is L4μm; and the ratio of L3 to L4 ranges from 0.20 to 12.76.

[0005] In some alternative embodiments, the identification mark is disposed between the edge of the substrate and the conductive trace.

[0006] In some alternative embodiments, the identification mark is formed by a polysilicon layer of the display panel.

[0007] In some alternative embodiments, the identification mark has a rectangular outline.

[0008] In some alternative embodiments, the dynamic distance from the identification mark to the edge of the substrate ranges from 193 to 1996 μm.

[0009] In some alternative embodiments, the dynamic distance from the conductive trace to the edge of the substrate ranges from 285 to 3520 μm.

[0010] In some alternative embodiments, the dynamic distance from the conductive trace to the identification mark is L5μm; the ratio of L3 to L5 ranges from 0.24 to 11.00.

[0011] In some alternative embodiments, the ratio of L4 to L5 ranges from 0.16 to 6.20.

[0012] In some alternative embodiments, the conductive trace includes a parallel segment extending in a direction parallel to the edge of the identification mark; wherein the distance from the parallel segment to the identification mark is L6; and the ratio of L6 to L3 ranges from 0.11 to 1.37.

[0013] In some alternative embodiments, the conductive trace includes: an inclined segment extending in a direction that intersects the edge of the identification mark at an angle; wherein the dynamic distance from the inclined segment to the identification mark is L7; and the ratio of L7 to L3 ranges from 0.08 to 2.45.

[0014] In some embodiments of this application, the identification mark is made of an organic polymer material; and / or the identification mark is made of an insulating material.

[0015] As another aspect of this application, embodiments of this application also provide a wearable display device, including the display panel described in any of the above embodiments.

[0016] The beneficial effects provided by the embodiments of this application include at least the following:

[0017] By setting the dynamic distance between the conductive trace and the edge of the substrate and the dynamic distance between the identification mark and the edge of the substrate, the possibility of corrosion of the conductive trace and its surroundings can be reduced, while the size of the display panel can be effectively controlled.

[0018] Other beneficial effects of the embodiments of this application will be further explained in the following specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a display panel provided in one embodiment of this application;

[0020] Figure 2 yes Figure 1 The diagram shows a partial view of the display panel dimensions.

[0021] Figure 3 yes Figure 1 The diagram shows another portion of the display panel's dimensions;

[0022] Figure 4 yes Figure 1 A schematic diagram showing another portion of the dimensions of the display panel;

[0023] Figure 5 This is a schematic diagram of the structure of a wearable display device provided in one embodiment of this application.

[0024] Meaning of the reference numerals in the diagram:

[0025] 100. Display panel; 101. Substrate; 102. Conductive traces; 103. Identification mark; Detailed Implementation

[0026] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The described technical solutions are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0027] Furthermore, in the embodiments of this application, "multiple" refers to two or more. The terms "first" and "second," etc., in the embodiments of this application are used to distinguish different technical features and do not indicate any order, quantity, or importance.

[0028] The directional terms used in this application, such as "up", "down", "front", "back", "left", "right", "inner", "outer", and "side", are only for the directions shown in the accompanying drawings. The directional terms used herein are for the purpose of explaining and illustrating this application, and not for limiting the scope of protection of this application.

[0029] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. Furthermore, for ease of understanding and description, the dimensions and thicknesses of each component shown in the drawings are arbitrary, and this application does not limit the dimensions and thicknesses of each component.

[0030] The various embodiments provided in this application are similar, and features in different embodiments can be combined with each other.

[0031] The order in which the following embodiments are described is not intended to limit the preferred order of the embodiments.

[0032] Reference Figures 1 to 4 As shown, the display panel 100 of this application includes: a substrate 101, conductive traces 102, and identification marks 103.

[0033] As a specific embodiment, in some embodiments of this application, the identification mark 103 is made of an organic polymer material; and / or the identification mark 103 is made of an insulating material. More specifically, the identification mark 103 is made of polyethylene.

[0034] The substrate 101 provides the base for the display panel 100. Conductive traces 102 are used to transmit current; identification marks 103 are used to provide identification information for the display panel 100; both the conductive traces 102 and the identification marks 103 are disposed on the substrate 101; the area of ​​the identification marks 103 is 5 μm.2 The minimum distance from the conductive trace 102 to the identification mark 103 is L1μm; wherein the ratio of S to L1 ranges from 3750 to 7520.

[0035] By selecting the ratio of the area of ​​the identification mark 103 to the distance from the conductive trace 102 to the identification mark 103, the possibility of corrosion of the display panel can be reduced, while the size of the display panel 100 can be effectively controlled.

[0036] More specifically, the above-mentioned configuration can effectively prevent electrochemical corrosion of the conductive trace 102 and its surrounding area, especially the part of the conductive trace 120 that connects to the ESD (Electro-Static discharge) protection circuit and the structure corresponding to the ESD protection circuit.

[0037] It should be noted that prior to this application, the correlation between the electrochemical corrosion of the conductive trace 102 and the identification mark 103 was not pointed out, and in particular, the correlation between the electrochemical corrosion occurring on the part of the conductive trace 120 connected to the ESD (Electro-Static discharge) protection circuit and the identification mark 103, as well as the corresponding solutions, were not pointed out.

[0038] As a specific solution, the conductive trace 102 of this application is connected to the ESD protection circuit of the display panel 100.

[0039] Reference Figures 1 to 4 As shown, in some embodiments of this application, the identification mark 103 is disposed between the edge of the substrate 101 and the conductive trace 102. The identification mark 103 is formed of a polysilicon layer of the display panel 100. Furthermore, the identification mark 103 has a rectangular outline.

[0040] Reference Figures 1 to 4 As shown, in some embodiments of this application, the area of ​​the identification mark 103 ranges from 1211400 μm. 2 Up to 2422860μm 2 .

[0041] Reference Figures 1 to 4 As shown, in some embodiments of this application, the distance between the conductive trace 102 and the identification mark 103 ranges from 225 μm to 1625 μm.

[0042] Reference Figures 1 to 4As shown, in some embodiments of this application, the minimum distance from the identification mark 103 to the edge of the substrate 101 is L2μm, and the ratio of S to L2 ranges from 4385 to 8780.

[0043] More specifically, the ratio of S to L2 can range from 4400 to 8700, 5500 to 7500, or 6000 to 7000; or the ratio of S to L2 can range from 4300 to 6000, 6500 to 7500, or 7600 to 8700.

[0044] Reference Figures 1 to 4 As shown, in some embodiments of this application, the ratio of L1 to L2 ranges from 0.81 to 1.65.

[0045] More specifically, the ratio of L1 to L2 can be in the range of 0.85 to 1.6, 1.05 to 1.5, or 0.81 to 1.65; or the ratio of L1 to L2 can also be in the range of 0.82 to 1.02, 1.2 to 1.47, or 1.51 to 1.64.

[0046] Reference Figures 1 to 4 As shown, in some embodiments of this application, the width of the conductive trace 102 is W μm, and the ratio of S to W ranges from 3775 to 7555.

[0047] More specifically, the ratio of S to W can also be in the range of 3800 to 7500, 4500 to 7000, or 5700 to 6600; or the ratio of S to W can also be in the range of 3780 to 4400, 4500 to 6300, or 6500 to 7400.

[0048] Reference Figures 1 to 4 As shown, in some embodiments of this application, the ratio of W to L1 ranges from 0.69 to 1.40.

[0049] More specifically, the ratio of W to L1 can be in the range of 0.7 to 1.30, 0.9 to 1.2, or 0.95 to 1.15; or the ratio of W to L1 can be in the range of 0.71 to 0.95, 0.96 to 1.17, or 1.21 to 1.39.

[0050] Reference Figures 1 to 4As shown, in some embodiments of this application, the dynamic distance from the conductive trace 102 to the edge of the substrate 101 is L3 μm; the dynamic distance from the identification mark to the edge of the substrate 101 is L4 μm; and the ratio of L3 to L4 ranges from 0.20 to 12.76.

[0051] Specifically, the ratio of L3 to L4 can also be in the range of 0.20 to 12.76, 2.20 to 10.76, 4.20 to 8.76, 6.20 to 6.76, etc.; or, the ratio of L3 to L4 can also be in the range of 0.20 to 3.20, 3.20 to 6.20, 6.20 to 9.20, 9.20 to 12.76, etc.

[0052] Reference Figures 1 to 4 As shown, in some optional embodiments, the dynamic distance from the identification mark 103 to the edge of the substrate 101 ranges from 193 to 1996 μm.

[0053] Specifically, the dynamic distance from the identification mark to the edge of the substrate can be in the range of 193 to 1996 μm, 493 to 1696 μm, 793 to 1396 μm, 1093 to 1196 μm, etc.; or, the dynamic distance from the identification mark to the edge of the substrate can be in the range of 193 to 593 μm, 593 to 993 μm, 993 to 1393 μm, etc.

[0054] Reference Figures 1 to 4 As shown, in some optional embodiments, the dynamic distance from the conductive trace 102 to the edge of the substrate 101 ranges from 285 to 3520 μm.

[0055] Specifically, the dynamic distance from the conductive trace to the edge of the substrate can also be in the range of 285 to 3520 μm, 785 to 3020 μm, 1285 to 2520 μm, 1785 to 2020 μm, etc. Alternatively, the dynamic distance from the conductive trace to the edge of the substrate can also be in the range of 285 to 885 μm, 885 to 1485 μm, 2085 to 2685 μm, 2685 to 3285 μm, 3285 to 3520 μm.

[0056] Reference Figures 1 to 4 As shown, in some optional embodiments, the dynamic distance from the conductive trace 102 to the identification mark 103 is L5μm; the ratio of L3 to L5 ranges from 0.24 to 11.00.

[0057] Reference Figures 1 to 4As shown, in some optional embodiments, the ratio of L4 to L5 ranges from 0.16 to 6.20.

[0058] Specifically, the ratio of L4 to L5 can also range from 0.16 to 6.20, 0.96 to 5.40, 1.76 to 4.60, 2.56 to 3.80, etc. Alternatively, the ratio of L4 to L5 can also range from 0.16 to 2.16, 2.16 to 4.16, 4.16 to 6.20, etc.

[0059] Reference Figures 1 to 4 As shown, in some optional embodiments, the conductive trace 102 includes a parallel segment and an inclined segment. The parallel segment extends in a direction parallel to the edge of the identification mark 103; the inclined segment extends in a direction that intersects the edge of the identification mark 103 at an angle.

[0060] Specifically, the distance from the parallel segment to the identification mark 103 is L6; the ratio of L6 to L3 ranges from 0.11 to 1.37. The dynamic distance from the inclined segment to the identification mark 103 is L7; the ratio of L7 to L3 ranges from 0.08 to 2.45.

[0061] Specifically, the ratio of L6 to L3 can also be in the range of 0.11 to 1.37, 0.26 to 1.22, 0.41 to 1.07, 0.56 to 0.92, 0.70 to 0.80, etc.; or, the ratio of L6 to L3 can also be in the range of 0.11 to 0.41, 0.41 to 0.71, 0.71 to 1.01, 1.01 to 1.37, etc.

[0062] Specifically, the ratio of L7 to L3 can also be in the range of 0.08 to 2.45, 0.38 to 2.15, 0.78 to 1.85, 1.08 to 1.55, etc.; or, the ratio of L7 to L3 can also be in the range of 0.08 to 0.58, 0.58 to 1.08, 1.08 to 1.58, 1.58 to 2.08, 2.08 to 2.45, etc.

[0063] This approach allows for a balance between corrosion protection and space utilization by adjusting different values.

[0064] Reference Figure 5 As shown, another embodiment of this application also provides a wearable display device 200, including the display panel 100 described in any of the above embodiments.

[0065] Wearable display device 200 can be: smartwatch, wristband, portable PDA, etc.

[0066] In some embodiments, the aforementioned display panel 100 of this application can also be applied to the following display devices: mobile phones, tablet computers, televisions, monitors, laptops, digital photo frames, navigators, and any other products or components with display functions.

[0067] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display panel, characterized in that, include: substrate; Conductive traces are used to transmit current. Identification marks are used to provide identification information for the display panel; The conductive trace and the identification mark are both disposed on the substrate; the identification mark is disposed between the edge of the substrate and the conductive trace; the dynamic distance from the conductive trace to the edge of the substrate is L3μm; the dynamic distance from the identification mark to the edge of the substrate is L4μm; the ratio of L3 to L4 ranges from 0.20 to 12.

76. The dynamic distance from the conductive trace to the edge of the substrate ranges from 285 to 3520 μm.

2. The display panel according to claim 1, characterized in that, in, The identification mark is composed of a polysilicon layer of the display panel.

3. The display panel according to claim 1, characterized in that, in, The identification mark has a rectangular outline.

4. The display panel according to any one of claims 1 to 3, characterized in that, in, The dynamic distance from the conductive trace to the identification mark is L5μm; the ratio of L3 to L5 ranges from 0.24 to 11.00; the ratio of L4 to L5 ranges from 0.16 to 6.

20.

5. The display panel according to any one of claims 1 to 3, Its features are, The conductive traces include: Parallel segments extend in a direction parallel to the edge of the identification mark; The inclined segment extends in a direction that intersects the edge of the identification mark at an angle; Wherein, the distance from the parallel segment to the identification mark is L6; the ratio of L6 to L3 ranges from 0.11 to 1.37; the dynamic distance from the inclined segment to the identification mark is L7; the ratio of L7 to L3 ranges from 0.08 to 2.

45.

6. The display panel according to any one of claims 1 to 3, characterized in that, The identification mark is made of organic polymer material; and / or The identification mark is made of insulating material.

7. A wearable display device, characterized in that, Includes the display panel as described in any one of claims 1 to 6.

Citation Information

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