Anti-static panel and liquid crystal module

By designing a local epitaxial overlapping platform on the edge of the upper substrate of the liquid crystal panel and extending the conductive film to the platform, the problem of insufficient electrostatic protection of the existing liquid crystal panel is solved, while avoiding poor display and achieving efficient electrostatic protection.

CN222965508UActive Publication Date: 2025-06-10TRULY SEMICON
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Patent Information

Application Number
CN202420823700.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-19
Publication Date
2025-06-10
Estimated Expiration
2034-04-19

AI Technical Summary

Technical Problem

The existing LCD panels have shortcomings in electrostatic protection, and the development of narrow bezel technology requires that the polarizer should not enter the display area and bevel in order to avoid poor display.

Method used

An anti-static panel is designed to form a overlapping platform by adopting a local epitaxial design on the edge of the upper substrate, and extending the conductive film to the overlapping platform, electrically connecting the conductive member to the grounding PAD, thereby increasing the contact area between the conductive film and the conductive member.

Benefits of technology

It effectively improves the electrostatic protection capability, and at the same time avoids the upper polarizer entering the display area and prevents poor display.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-static panel which comprises an upper substrate and a lower substrate which are oppositely arranged, liquid crystal materials are filled between the upper substrate and the lower substrate, and an upper polaroid is arranged on the upper surface of the upper substrate. A conductive film is arranged between the upper substrate and the upper polaroid, a grounding PAD is arranged on the lower substrate, the position, corresponding to the grounding PAD, of the upper substrate extends towards the outside of the upper polaroid to form a lap joint platform, and the conductive film extends to the lap joint platform and is electrically connected with the grounding PAD through a conductive piece. According to the anti-static panel, the electrostatic protection capability is improved, and meanwhile poor display cannot be caused. The utility model further discloses a liquid crystal module which comprises the anti-static panel.
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Description

Technical Field

[0001] The utility model relates to display technology, in particular to an anti-static panel and a liquid crystal module. Background Art

[0002] A liquid crystal panel includes an upper substrate and a lower substrate which are oppositely arranged. Liquid crystal material is filled between the upper substrate and the lower substrate. An upper polarizer is arranged on the upper surface of the upper substrate, and a lower polarizer is arranged on the lower surface of the lower substrate.

[0003] The upper substrate, as the display side of the liquid crystal panel, often comes into contact with external objects such as fingers and accumulates static electricity. In the prior art, in order to solve the static electricity problem of the upper substrate, a conductive film is arranged between the upper substrate and the upper polarizer. The conductive film exposes from the edge of the upper polarizer, and conductive silver paste is dotted between the upper substrate and the lower substrate. The conductive film is lapped to the grounding PAD on the lower substrate by using the conductive silver paste, and then grounded through the external circuit of the lower substrate, so as to release the static electricity accumulated on the upper substrate.

[0004] In order to increase the contact area between the conductive film and the conductive silver paste, the edge of the upper polarizer needs to be recessed towards the display area of the liquid crystal panel to expose the conductive film from the recessed part of the upper polarizer and increase the exposed area of the conductive film. However, with the development of the narrow bezel technology, if the upper polarizer adopts the edge recessed design, it is easy to enter the display area of the liquid crystal panel, thus causing poor display. Summary of the Utility Model

[0005] In order to solve the deficiencies of the above prior art, the utility model provides an anti-static panel, which can improve the static electricity protection ability without causing poor display.

[0006] The utility model also provides a liquid crystal module, including the above anti-static panel.

[0007] The technical problem to be solved by the utility model is realized through the following technical solutions:

[0008] An anti-static panel includes an upper substrate and a lower substrate which are oppositely arranged. Liquid crystal material is filled between the upper substrate and the lower substrate. An upper polarizer is arranged on the upper surface of the upper substrate. A conductive film is arranged between the upper substrate and the upper polarizer. A grounding PAD is arranged on the lower substrate. A lapping platform extends towards the upper polarizer at a position on the upper substrate corresponding to the grounding PAD. The conductive film extends to the lapping platform and is electrically connected to the grounding PAD through a conductive member.

[0009] Further, the conductive member includes a first overlapping portion, a climbing portion, and a second overlapping portion that are connected in sequence. The first overlapping portion overlaps with the grounding PAD of the lower substrate. The climbing portion climbs from the grounding PAD of the lower substrate along the side surface of the upper substrate to the overlapping platform of the upper substrate. The second overlapping portion overlaps with the conductive film extending onto the overlapping platform.

[0010] Further, the overlapping platform has a first length in a first direction and a second length in a second direction. The first direction is perpendicular to the second direction, and the first length is greater than the second length.

[0011] Further, the connection direction of the first overlapping portion, the climbing portion, and the second overlapping portion is parallel to the second direction.

[0012] Further, the second overlapping portion extends along the first direction on the overlapping platform.

[0013] Further, the lower substrate includes a fitting area that fits relative to the upper substrate, and a single-layer area that extends outward from one side of the lower substrate toward the outside of the upper substrate. The grounding PAD is disposed on the single-layer area of the lower substrate.

[0014] Further, a lower polarizing plate is disposed on the lower surface of the lower substrate.

[0015] Further, the conductive member is conductive silver paste or conductive cloth.

[0016] Further, the conductive film is an ITO film or a high-resistance film.

[0017] A liquid crystal module includes a backlight module and the above-mentioned anti-static panel. The anti-static panel is disposed on the light-emitting surface of the backlight module.

[0018] The present invention has the following beneficial effects: The anti-static panel of the present invention adopts a local epitaxial design on the edge of the upper substrate. The local edge of the upper substrate is epitaxially extended toward the upper polarizing plate to form the overlapping platform, and then the conductive film is extended onto the overlapping platform to be exposed, so as to increase the exposed area of the conductive film. In this way, when the conductive member overlaps with the conductive film on the overlapping platform, the contact area between the conductive film and the conductive member can be increased, and the electrostatic protection ability can be improved. At the same time, since the upper polarizing plate does not need to be recessed into the display area, display defects will not be caused. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front structural schematic diagram of the anti-static panel provided by the present invention.

[0020] Figure 2 is Figure 1Partial enlarged schematic diagram of location a in the anti-static panel shown

[0021] Figure 3 Schematic diagram of the stacking structure of the anti-static panel provided by the present utility model Specific embodiments

[0022] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model

[0024] In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined

[0025] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can also be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances Embodiment 1

[0026] As Figures 1 - 3As shown in the figure, an anti-static panel includes an upper substrate 10 and a lower substrate 20 which are oppositely arranged. A liquid crystal material is filled between the upper substrate 10 and the lower substrate 20. An upper polarizer 30 is arranged on the upper surface of the upper substrate 10, and a lower polarizer 40 is arranged on the lower surface of the lower substrate 20. A conductive film 50 is arranged between the upper substrate 10 and the upper polarizer 30. A grounding PAD 21 is arranged on the lower substrate 20. At a position corresponding to the grounding PAD 21 on the upper substrate 10, a lapping platform 11 extends outward toward the outside of the upper polarizer 30. The conductive film 50 extends onto the lapping platform 11 and is electrically connected to the grounding PAD 21 through a conductive member 60.

[0027] In the anti-static panel of the present utility model, a local epitaxial design is adopted on the edge of the upper substrate 10. A local edge of the upper substrate 10 extends outward toward the upper polarizer 30 to form the lapping platform 11. Then, the conductive film 50 is extended onto the lapping platform 11 and exposed to increase the exposed area of the conductive film 50. In this way, when the conductive member 60 lapps with the conductive film 50 on the lapping platform 11, the contact area between the conductive film 50 and the conductive member 60 can be increased, and the electrostatic protection ability can be improved. At the same time, since the upper polarizer 30 does not need to be recessed into the display area, it will not cause display defects.

[0028] In this embodiment, the conductive member 60 is conductive silver paste or conductive cloth, and the conductive film 50 is an ITO film or a high-resistance film.

[0029] The number of the lapping platforms 11 can be only one or multiple, depending on the electrostatic protection requirements of the anti-static panel and the wiring space of the lower substrate 20. The lapping platforms 11, the grounding PAD 21, and the conductive member 60 correspond to each other one by one. When the number of the lapping platforms 11 is multiple, the multiple lapping platforms 11 are preferably distributed in sequence on the same side edge of the upper substrate 10.

[0030] The conductive member 60 includes a first lapping portion 61, a climbing portion 62, and a second lapping portion 63 which are connected in sequence. The first lapping portion 61 lapps with the grounding PAD 21 of the lower substrate 20. The climbing portion 62 climbs from the grounding PAD 21 of the lower substrate 20 along the side surface of the upper substrate 10 to the lapping platform 11 of the upper substrate 10. The second lapping portion 63 lapps with the conductive film 50 extending onto the lapping platform 11.

[0031] The conductive member 60 of the present utility model is designed with the climbing portion 62, and climbs from the grounding PAD 21 of the lower substrate 202 to the overlapping platform 11 of the upper substrate 10 through the climbing portion 62, and then contacts the conductive film 50 located on the overlapping platform 11, realizing the cross-layer transfer of static electricity, transferring the static electricity accumulated on the upper substrate 10 to the grounding PAD 21 of the lower substrate 20, and then grounding through the external circuit of the lower substrate 20, thereby releasing the static electricity accumulated on the upper substrate 10.

[0032] The overlapping platform 11 has a first length in the first direction and a second length in the second direction. The first direction is perpendicular to the second direction, and the first length is greater than the second length.

[0033] By extending the overlapping platform 11 in the first direction in the present utility model, the area of the overlapping platform 11 is enlarged, so that a larger area of the conductive film 50 can be exposed on the overlapping platform 11, further increasing the contact area with the conductive member 60, making the overlapping effect of the conductive member 60 better, the impedance smaller, and the static electricity release ability better.

[0034] In this embodiment, the first direction is the lateral direction of the anti-static panel, and the second direction is the longitudinal direction of the anti-static panel.

[0035] The connection direction of the first overlapping portion 61, the climbing portion 62 and the second overlapping portion 63 is parallel to the second direction, and the second overlapping portion 63 extends along the first direction on the overlapping platform 11.

[0036] The conductive member 60 of the present utility model is in an L shape or a T shape when viewed from a plane. One direction of the L shape or the T shape is the connection direction of the first overlapping portion 61, the climbing portion 62 and the second overlapping portion 63, and the other direction of the L shape is the extending direction of the second overlapping portion 63. By designing the second overlapping portion 63 to extend in the same direction as the overlapping platform 11, the area of the second overlapping portion 63 can be increased, further increasing the contact area with the conductive film 50, making the overlapping effect of the conductive member 60 better, the impedance smaller, and the static electricity release ability better.

[0037] The lower substrate 20 includes a fitting area that fits relative to the upper substrate 10, and a single-layer area that extends outward from one side of the lower substrate 20 toward the upper substrate 10; the grounding PAD 21 is disposed on the single-layer area of the lower substrate 20. Embodiment 2

[0038] A liquid crystal module includes a backlight module and the anti-static panel described in Embodiment 1, and the anti-static panel is disposed on the light-emitting surface of the backlight module.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present utility model and not to limit them. Although the embodiments of the present utility model have been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the embodiments of the present utility model can still be modified or equivalently replaced, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An antistatic panel, comprising an upper substrate and a lower substrate arranged opposite to each other, a liquid crystal material is filled between the upper substrate and the lower substrate, an upper polarizer is arranged on the upper surface of the upper substrate; a conductive film is arranged between the upper substrate and the upper polarizer, and a grounding PAD is arranged on the lower substrate, characterized in that: The upper substrate extends outward from the upper polarizer at a position corresponding to the ground PAD to form a lap platform, and the conductive film extends to the lap platform and is electrically connected to the ground PAD through a conductive member.

2. The antistatic panel according to claim 1, characterized in that: The conductive member includes a first overlapping portion, a climbing portion, and a second overlapping portion which are connected in sequence, the first overlapping portion overlapping the ground PAD of the lower substrate, the climbing portion climbing along the side of the upper substrate from the ground PAD of the lower substrate to the overlapping platform of the upper substrate, and the second overlapping portion overlapping the conductive film extending to the overlapping platform.

3. The antistatic panel according to claim 2, characterized in that: The overlapping platform has a first length along a first direction and a second length along a second direction, the first direction is perpendicular to the second direction, and the first length is greater than the second length.

4. The antistatic panel according to claim 3, characterized in that: A connection direction of the first overlapping portion, the climbing portion, and the second overlapping portion is parallel to the second direction.

5. The antistatic panel according to claim 3 or 4, characterized in that: The second overlapping portion extends along the first direction on the overlapping platform.

6. The antistatic panel according to claim 1, characterized in that: The lower substrate includes a bonding area that is relatively bonded to the upper substrate, and a single-layer area formed on one side of the lower substrate and extending outward from the upper substrate; the ground PAD is arranged on the single-layer area of ​​the lower substrate.

7. The antistatic panel according to claim 1, characterized in that: A lower polarizer is arranged on the lower surface of the lower substrate.

8. The antistatic panel according to claim 1, characterized in that: The conductive member is conductive silver paste or conductive cloth.

9. The antistatic panel according to claim 1, characterized in that: The conductive film is an ITO film or a high resistance film.

10. A liquid crystal module, characterized in that: It comprises a backlight module and the antistatic panel according to claim 1, wherein the antistatic panel is arranged on the light emitting surface of the backlight module.