Polarizer structure

Abstract

The utility model discloses a polaroid structure which is characterized by comprising a body, a waterproof layer, a water absorption layer and a protective covering film, one surface of the body is coated with glue and is tightly attached to the screen; the waterproof layer covers the side face of the body and is used for preventing water vapor from making contact with the body. The water absorption layer is arranged on one surface, far away from the body, of the waterproof layer and is used for actively absorbing water vapor to protect the waterproof layer; the protective covering film covers the face, away from the attached face, of the body, and the waterproof layer and the water absorption layer are covered in the protective covering film. According to the utility model, the waterproof layer is arranged at the edge of the polaroid to block water vapor, and meanwhile, the water absorption layer actively reduces the water vapor at the edge of the polaroid, so that water vapor invasion caused by long-term high-humidity state is reduced. And the water absorption layer is exposed in the environment, so that the water absorption layer is promoted to discharge internal water vapor to return to a water-absorbable state through heat generated during use.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technology field especially a kind of polaroid structure. BACKGROUND

[0002] The basic structure of polaroid is combined by several thin film materials with thickness of only tens of microns, and the polyvinyl alcohol film layer plays a polarization role. After dyeing, the polyvinyl alcohol film absorbs iodine molecules with dichroic absorption function. Through stretching process, the iodine molecules are orderly arranged on the polyvinyl alcohol film to form a polarizing film with uniform dichroic absorption performance. The light transmission axis is perpendicular to the stretching direction. In actual use, due to the harsh environment of high heat and humidity, some liquid crystal displays may have problems such as screen discoloration, yellowing and display blur caused by water absorption of the polyvinyl alcohol layer of the polaroid and loss of iodine molecules.

[0003] For example, the utility model patent with application number 202421494901.6 and the name of a polaroid structure and a display for improving high-temperature redness discloses a polaroid structure and a display for improving high-temperature redness. The polaroid structure for improving high-temperature redness includes a polaroid body and a water absorption structure. The side of the polaroid body facing the screen is provided with a containing recess. The containing recess is arranged along the edge of the polaroid body. The water absorption structure is arranged in the containing recess to absorb water vapor. The utility model mainly provides a polaroid structure for improving high-temperature redness. By arranging a containing recess for containing the water absorption structure on the polaroid body, the water absorption structure can adsorb water vapor, effectively preventing the problem of redness failure at high temperature when water vapor enters between the polaroid body and the glass substrate. Moreover, by arranging the water absorption structure in the containing recess, the problem of water vapor leakage between the polaroid body and the glass substrate can be avoided, further preventing water vapor from entering between the polaroid body and the glass substrate to ensure normal operation of the polaroid.

[0004] The utility model patent opens a groove on the polaroid body to contain the water absorption structure in the groove to avoid the problem of water vapor leakage between the polaroid body and the glass substrate. However, the utility model patent does not seal the polarizing part of the polaroid. The water absorption structure in the groove will still release water vapor at high temperature, and the side surface of the groove will still be exposed to the water vapor environment at high temperature, which may cause foggy spots and affect the screen display effect. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a polaroid structure to isolate water vapor and prevent damage to the polaroid under high temperature and high humidity.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A polarizer structure comprises a body, a waterproof layer, a water absorption layer and a protective film;

[0008] The body is pasted to the screen by the glue on one side;

[0009] The waterproof layer covers the side of the body to prevent water vapor from contacting the body;

[0010] The water absorption layer is arranged on the side of the waterproof layer away from the body to actively absorb water vapor to protect the waterproof layer;

[0011] The protective film covers the side of the body away from the pasting to cover the waterproof layer and the water absorption layer.

[0012] Further, the body is a multi-layer film composite sheet structure, which comprises a polarizer layer.

[0013] Further, the waterproof layer should cover at least the polarizer layer of the body.

[0014] Further, the water absorption layer should cover the waterproof layer.

[0015] Further, the protective film should cover the waterproof layer and the water absorption layer.

[0016] Further, the protective film is a breathable film structure for guiding the water absorption layer to evaporate the water therein.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] The utility model discloses a waterproof layer is arranged at the edge of the polarizer to prevent water vapor, and the water absorption layer is arranged to actively reduce the water vapor at the edge of the polarizer, thereby reducing the water vapor invasion caused by long-term high humidity state. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the polarizer profile structure schematic view of the utility model;

[0020] Figure 2 It is the polarizer overhead structure schematic view of the utility model.

[0021] In the drawing: 1, body, 2, waterproof layer, 3, water absorption layer, 4, protective film, 5, polarizer layer. DETAILED DESCRIPTION

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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.

[0024] Example:

[0025] like Figure 1 As shown, this utility model embodiment proposes a polarizer structure, including a body 1, a waterproof layer 2, a water-absorbing layer 3, and a protective film 4;

[0026] The main body 1 is coated with adhesive on one side to fit tightly against the screen;

[0027] The waterproof layer 2 covers the side of the body 1 and is used to prevent water vapor from contacting the body 1;

[0028] The water-absorbing layer 3 is disposed on the side of the waterproof layer 2 away from the main body 1, and is used to actively absorb moisture to protect the waterproof layer 2.

[0029] The protective film 4 covers the side of the body 1 away from the adhesive side, covering the waterproof layer 2 and the absorbent layer 3 inside.

[0030] In this embodiment, the polarizer is tightly bonded to the screen with adhesive, serving to filter light and improve display performance. Since polarizers are typically made by cutting large sheets to size and then attaching them to the screen, their sides are often exposed to the external environment. As a multilayered thin-film composite structure, the polyvinyl alcohol (PVA) film layer plays a polarizing role. After dyeing, the PVA film adsorbs iodine molecules with biaxial absorption capabilities. Through processes such as stretching, the iodine molecules are arranged in an orderly manner on the PVA film, forming a polarizing film with uniform biaxial absorption properties. When the sides of the polarizer are exposed to the external environment, water vapor in the air exchanges with the iodine molecules on the PVA film. Water molecules diffuse into the PVA, loosening the long-chain structure of the PVA and displacing the iodine molecules, resulting in iodine loss and polarizer failure.

[0031] Therefore, when the polarizer is cut, a waterproof layer 2 is sprayed on the four sides of the polarizer as a first layer of isolation to effectively prevent water in the air from diffusing into the polarizer during subsequent processing, affecting the finished product. Further, the waterproof layer 2 may be affected by environmental changes during long-term use, affecting its waterproof effect, so a water absorption layer 3 that can actively absorb moisture can be covered on the periphery of the waterproof layer 2 to provide a more stable humidity environment for the waterproof layer 2. In order to protect the water absorption layer 3 and the waterproof layer 2 from mechanical damage during long-term use, causing the waterproof layer 2 and the water absorption layer 3 to peel off, a protective film 4 needs to be covered on the entire surface.

[0032] Further, the body 1 is a multi-layer film composite sheet structure, which includes a polarizer layer 5.

[0033] The structure layer of the polarizer that specifically produces its effect is the polarizer layer 5, which is a layer of polyvinyl alcohol film used to adsorb iodine molecules with dichroic absorption function after dyeing. Through stretching and other processes, the iodine molecules are orderly arranged on the polyvinyl alcohol film to form a polarizing film with uniform dichroic absorption properties.

[0034] Further, the waterproof layer 2 should cover at least the polarizer layer 5 of the body 1.

[0035] In order to protect the polarizer layer and prevent water vapor from entering the polarizer layer causing iodine molecules to be lost, the waterproof layer 2 needs to cover the polarizer layer 5 of the body 1 to block the exchange process between water molecules in the air and iodine molecules in the polarizer layer.

[0036] Further, the water absorption layer 3 should cover the waterproof layer 2.

[0037] In actual use, the waterproof layer 2 may be peeled off due to changes in environmental humidity, affecting its waterproof effect, and the waterproof effect of the waterproof layer 2 in a high humidity environment will also be reduced. Therefore, the water absorption layer 3 can be set outside the waterproof layer 2 to absorb water when the environmental humidity is too high and to release water when the environmental humidity is too low, protecting the waterproof layer 2.

[0038] Further, the protective film 4 should cover the waterproof layer 2 and the water absorption layer 3.

[0039] In order to avoid damage to the water absorption layer 3 and the waterproof layer 2 due to mechanical damage during use, while ensuring the unity of the overall structure of the polarizer, a protective film 4 can be set outside the waterproof layer 2 and the water absorption layer 3.

[0040] Further, the protective film 4 is a breathable film structure for guiding the water absorption layer 3 to quickly evaporate the water in it.

[0041] It should be emphasized that the protective film 4 should not block the water absorption layer 3 from evaporating water when the external environment is relatively dry while playing a protective role, and therefore needs to have certain air permeability.

[0042] Compared with the prior art, the utility model has at least the following beneficial effects:

[0043] The utility model discloses a waterproof layer is set to the water vapor barrier at the edge of the polaroid, and the water vapor at the edge of the polaroid is reduced actively through the water absorption layer, reduces the water vapor invasion caused by long -term in high humidity state.

[0044] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. A polarizing sheet structure characterized by comprising: It comprises a body (1), a waterproof layer (2), a water absorption layer (3) and a protective film (4). The body (1) is pasted on the screen with glue on one side; The waterproof layer (2) covers the side of the body (1) to prevent water vapor from contacting the body (1); The water absorption layer (3) is arranged on the side of the waterproof layer (2) away from the body (1) to actively absorb water vapor to protect the waterproof layer (2); The protective film (4) covers the side of the body (1) away from the screen, covering the waterproof layer (2) and the water absorption layer (3) inside.

2. The polarizing sheet structure according to claim 1, wherein The body (1) is a sheet structure composed of multiple layers of film, including a polarizer layer (5).

3. The polarizing sheet structure according to claim 1, wherein The waterproof layer (2) should cover at least the polarizer layer (5) of the body (1).

4. The polarizing sheet structure according to claim 1, wherein The water absorption layer (3) should cover the waterproof layer (2).

5. The polarizing sheet structure according to claim 1, wherein The protective film (4) should cover the waterproof layer (2) and the water absorption layer (3).

6. The polarizing sheet structure according to claim 5, wherein The protective film (4) is a breathable film structure for guiding the water absorption layer (3) to evaporate the water in it quickly.

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