Antistatic polarizing plate and liquid crystal display

Abstract

This utility model discloses an antistatic polarizer and a liquid crystal display screen. The polarizer includes a polarizer body layer, characterized in that it further includes an antistatic layer. The polarizer body layer includes a first TAC layer, a PVA layer, and a second TAC layer, which are stacked sequentially from top to bottom. The conductive material in the antistatic layer forms a shielding network, isolating the static electricity generated on the surface of the polarizer body layer from the liquid crystal display screen. The antistatic polarizer structure of this invention achieves effective isolation of static electricity by setting an antistatic layer on the polarizer body layer. The conductive material in the antistatic layer forms a shielding network, isolating the static electricity generated on the surface of the polarizer body layer, effectively preventing the accumulation of static electricity, thereby avoiding static electricity reaching the liquid crystal display screen and affecting the display effect, improving the display effect of the liquid crystal screen and the reliability of the device.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and in particular to an antistatic polarizer and a liquid crystal display screen. Background Technology

[0002] In liquid crystal display (LCD) technology, polarizers play a crucial role. Polarizers are an essential component for LCD imaging, controlling the polarization direction of light to achieve image display. A polarizer is an optical thin film that converts natural light into polarized light with a single vibration direction. It is typically placed on the surface of the LCD and is an indispensable component for image formation. Natural light is converted into linearly polarized light with a single direction by the lower polarizer (incident side), then the polarization direction is modulated by the liquid crystal layer, and finally the upper polarizer (exit side) resolves the degree of light transmission, forming an image with contrasting brightness and darkness. Without any polarizer, the LCD cannot display an image.

[0003] However, in the existing technology, polarizers are prone to generating static electricity during the use of liquid crystal display devices. The accumulation of static electricity may have an adverse effect on the display effect and may even damage the display device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an antistatic polarizer and a liquid crystal display screen.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] In a first aspect, an antistatic polarizer is provided, comprising a polarizer body layer, characterized in that: it further comprises an antistatic layer, wherein the polarizer body layer comprises a first TAC layer, a PVA layer, and a second TAC layer, wherein the antistatic layer, the first TAC layer, the PVA layer, and the second TAC layer are stacked sequentially from top to bottom, and the conductive material in the antistatic layer can form a shielding network to isolate the static electricity generated on the surface of the polarizer body layer from the liquid crystal display screen.

[0007] Furthermore, the antistatic layer is made of a conductive polymer or a metal oxide.

[0008] Furthermore, the thickness of the antistatic layer is 1-99 μm.

[0009] Furthermore, the surface of the antistatic layer is covered with a protective film layer.

[0010] Furthermore, the protective film layer and the antistatic layer are connected by a first pressure-sensitive adhesive layer.

[0011] Furthermore, the thickness of the first pressure-sensitive adhesive layer is 15±2μm.

[0012] Furthermore, the surface of the second TAC layer is covered with a release film layer.

[0013] Furthermore, the second TAC layer and the release film layer are connected by a second pressure-sensitive adhesive layer.

[0014] Furthermore, the thickness of the second pressure-sensitive adhesive layer is 15±2μm.

[0015] In a second aspect, a liquid crystal display screen is provided, characterized in that it includes the polarizer described in the first aspect.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The antistatic polarizer structure of this invention achieves effective isolation of static electricity by setting an antistatic layer on the polarizer body layer. The conductive material in the antistatic layer can form a shielding network, isolating static electricity generated on the surface of the polarizer body layer, effectively preventing the accumulation of static electricity, thereby preventing static electricity from reaching the liquid crystal display screen and affecting the display effect, improving the display effect of the liquid crystal screen and the reliability of the device. At the same time, the material of the antistatic layer has good stability and durability, and can maintain its antistatic performance for a long time.

[0018] Other features and advantages of this invention will be set forth in the following description or may be learned by practicing this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] In the diagram: 1-Antistatic layer, 2-First TAC layer, 3-PVA layer, 4-Second TAC layer, 5-Protective film layer, 6-First pressure-sensitive adhesive layer, 7-Release film layer, 8-Second pressure-sensitive adhesive layer. Detailed Implementation

[0021] To enhance understanding of this utility model, we will now describe it in further detail with reference to the accompanying drawings. This embodiment is only used to explain this utility model and does not constitute a limitation on the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1

[0026] like Figure 1 As shown, an antistatic polarizer includes a protective film layer 5, an antistatic layer 1, a polarizer body layer, and a release film layer 7 stacked sequentially from top to bottom. When the polarizer is attached to a liquid crystal display screen, the antistatic layer 1 can separate the liquid crystal display screen and the polarizer body layer. The conductive material in the antistatic layer 1 can form a shielding network to isolate the static electricity generated on the surface of the polarizer body layer from the liquid crystal display screen.

[0027] The antistatic layer 1 is made of materials with antistatic properties, such as conductive polymers or metal oxides. The thickness of the antistatic layer 1 varies from 1 to 99 μm and can be prepared on the polarizer body layer by methods such as coating or vapor deposition. The function of the antistatic layer 1 is to isolate static electricity generated on the surface of the polarizer body layer, preventing static electricity from being conducted to and accumulating on the liquid crystal display screen.

[0028] The polarizer body layer comprises a first TAC layer 2, a PVA layer 3, and a second TAC layer 4 stacked sequentially from top to bottom, used to convert natural light into polarized light in a specific direction. The antistatic layer 1 and the protective film layer 5 are connected by a first pressure-sensitive adhesive layer 6. The second TAC layer 4 and the release film layer 7 are connected by a second pressure-sensitive adhesive layer 8. The first TAC layer 2 and the second TAC layer 4 are made of cellulose triacetate, and the PVA layer 3 is made of polyvinyl alcohol.

[0029] Preferably, the thickness of the first TAC layer 2 and the second TAC layer 4 is 15±2μm, the thickness of the PVA layer 3 is 10±2μm, and the thickness of the first pressure-sensitive adhesive layer 6 and the second pressure-sensitive adhesive layer 8 is 15±2μm.

[0030] The protective film layer 5 and the release film layer 7 are made of high-hardness, high-transmittance materials to protect the intermediate layers from external scratches and wear.

[0031] The aforementioned antistatic polarizer structure achieves effective isolation of static electricity by setting an antistatic layer 1 on the polarizer body layer. The conductive material in the antistatic layer 1 forms a shielding network that isolates static electricity generated on the polarizer surface, effectively preventing the accumulation of static electricity and thus avoiding static electricity reaching the liquid crystal display screen and affecting the display effect. Simultaneously, the material of the antistatic layer 1 has good stability and durability, maintaining its antistatic performance over a long period. The antistatic polarizer structure has a simple manufacturing process, low cost, and is easy to industrialize.

[0032] Example 2

[0033] A liquid crystal display screen includes the polarizer described in Embodiment 1, wherein the polarizer covers the surface of the liquid crystal display screen body.

[0034] The above specific embodiments are only for illustrating the technical concept and structural features of this utility model, and are intended to enable those skilled in the art to implement them. However, the above content does not limit the protection scope of this utility model. Any equivalent changes or modifications made in accordance with the spirit and essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. An antistatic polarizer, comprising a polarizer body layer, characterized in that: It also includes an antistatic layer (1). The polarizer body layer includes a first TAC layer (2), a PVA layer (3), and a second TAC layer (4). The antistatic layer (1), the first TAC layer (2), the PVA layer (3), and the second TAC layer (4) are stacked sequentially from top to bottom. The conductive material in the antistatic layer (1) can form a shielding network to isolate the static electricity generated on the surface of the polarizer body layer from the liquid crystal display screen. The antistatic layer (1) is made of a conductive polymer or a metal oxide.

2. The antistatic polarizer according to claim 1, characterized in that: The thickness of the antistatic layer (1) is 1-99 μm.

3. The antistatic polarizer according to claim 1, characterized in that: The surface of the antistatic layer (1) is covered with a protective film layer (5).

4. The antistatic polarizer according to claim 3, characterized in that: The protective film layer (5) and the antistatic layer (1) are connected by a first pressure-sensitive adhesive layer (6).

5. The antistatic polarizer according to claim 4, characterized in that: The thickness of the first pressure-sensitive adhesive layer (6) is 15±2μm.

6. The antistatic polarizer according to claim 1, characterized in that: The surface of the second TAC layer (4) is covered with a release film layer (7).

7. The antistatic polarizer according to claim 6, characterized in that: The second TAC layer (4) and the release film layer (7) are connected by a second pressure-sensitive adhesive layer (8).

8. The antistatic polarizer according to claim 7, characterized in that: The thickness of the second pressure-sensitive adhesive layer (8) is 15±2μm.

9. A liquid crystal display screen, characterized in that: The polarizer included in any one of claims 1-8.

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