Polaroid for STN type liquid crystal display with phase difference film

Abstract

The utility model discloses a polaroid for an STN type liquid crystal display with a phase difference film, which relates to the technical field of polaroids and comprises a TAC film, a low-refraction film, a polarized base layer, the phase difference film, a polarized original film and a pressure-sensitive adhesive layer which are sequentially arranged, the TAC film is adhered to the low-refraction film, the low-refraction film is adhered to the polarized base layer, and the polarized base layer is adhered to the phase difference film. The phase difference film is adhered to the polarized light original film, the polarized light original film is adhered to the pressure-sensitive adhesive layer, the polarized light base layer comprises two elastic right-angle plates adhered to the polarized light base layer, and a penetrating opening matched with the elastic right-angle plates is formed in the phase difference film in a penetrating manner. The rough surface of the elastic right-angle plate is bonded with the polarized light base layer and the polarized light original film, so that the phase difference film is fixed between the polarized light base layer and the polarized light original film, and the connection stability between the phase difference film and the polaroid for the STN type liquid crystal display is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polarizers, in particular to a polarizer for an STN liquid crystal display with a retardation film. Background Art

[0002] In an STN liquid crystal display, the use of a polarizer is indispensable. One polarizer needs to be attached to each of the front and back sides of each liquid crystal display (LCD) glass panel to achieve the purpose of eliminating glare. Currently, the commonly used polarizer for an STN liquid crystal display is a polarizer with a retardation film, which compensates for the difference in light transmission speed through the retardation film to eliminate the blue-violet light and yellow-green light that appear on the liquid crystal screen. However, the surface structure of the retardation film is smooth, and the adhesion between the glue and the retardation surface is weak, resulting in poor connection stability between the retardation film and the polarizer. Summary of the Utility Model

[0003] The utility model provides a polarizer for an STN liquid crystal display with a retardation film, which solves the technical problem that the surface structure of the retardation film is smooth, and the adhesion between the glue and the retardation surface is weak, resulting in poor connection stability between the retardation film and the polarizer.

[0004] To solve the above technical problem, a polarizer for an STN liquid crystal display with a retardation film provided by the utility model includes a TAC film, a low-refractive-index film, a polarizing substrate, a retardation film, a polarizing original film, and a pressure-sensitive adhesive layer arranged in sequence. The TAC film is bonded to the low-refractive-index film, the low-refractive-index film is bonded to the polarizing substrate, the polarizing substrate is bonded to the retardation film, the retardation film is bonded to the polarizing original film, and the polarizing original film is bonded to the pressure-sensitive adhesive layer. The polarizing substrate includes two elastic right-angle plates bonded thereto. A through insertion opening adapted to the elastic right-angle plate is formed in the retardation film. An adhesive layer is provided on the elastic right-angle plate, and the elastic right-angle plate is bonded to the retardation film through the adhesive layer. One side of the elastic right-angle plate is bonded to the polarizing original film. Through the butt joint of the elastic right-angle plate and the retardation film, the relatively rough surface of the elastic right-angle plate is used for bonding between the polarizing substrate and the polarizing original film, so as to fix the retardation film between the polarizing substrate and the polarizing original film, thereby improving the connection stability between the retardation film and the polarizer for the STN liquid crystal display.

[0005] Preferably, an anti-blue-light film is bonded to the top of the TAC film, which can enable the polarizer for the STN liquid crystal display to have the function of preventing blue-light radiation. An anti-static film is bonded to the anti-blue-light film, which can improve the anti-static performance of the polarizer for the STN liquid crystal display and effectively reduce the damage caused by static electricity to electronic products.

[0006] Compared with the related technology, the polarizer for an STN liquid crystal display with a retardation film provided by the utility model has the following beneficial effects:

[0007] In the present utility model, through the butt joint of the elastic right-angle plate and the retardation film, the relatively rough surface of the elastic right-angle plate is adhered between the polarization base layer and the polarization original film, thereby fixing the retardation film between the polarization base layer and the polarization original film, so as to improve the connection stability between the retardation film and the polarizer for STN liquid crystal display. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a perspective view of a polarizer for STN liquid crystal display with a retardation film;

[0009] Figure 2 is a schematic structural view of a polarizer for STN liquid crystal display with a retardation film;

[0010] Figure 3 is Figure 2 an enlarged structural view of part A in

[0011] Reference numerals in the figures: 1, antistatic film; 2, blue light blocking film; 3, TAC film; 4, low refractive index film; 5, polarization base layer; 6, retardation film; 7, polarization original film; 8, pressure-sensitive adhesive layer; 9, elastic right-angle plate; 10, adhesive layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The embodiments of the present utility model will be described in detail below.

[0013] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components. 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 situations.

[0014] Example 1, consisting of Figures 1 - 3Provided is a polarizer for an STN liquid crystal display having a retardation film, including a TAC film 3, a low-refractive-index film 4, a polarizing base layer 5, a retardation film 6, a polarizing original film 7, and a pressure-sensitive adhesive layer 8 which are sequentially arranged. The TAC film 3 is bonded to the low-refractive-index film 4, the low-refractive-index film 4 is bonded to the polarizing base layer 5, the polarizing base layer 5 is bonded to the retardation film 6, the retardation film 6 is bonded to the polarizing original film 7, and the polarizing original film 7 is bonded to the pressure-sensitive adhesive layer 8. The polarizing base layer 5 includes two elastic right-angled plates 9 bonded thereto. An insertion opening adapted to the elastic right-angled plate 9 is formed through the retardation film 6. An adhesive layer 10 is provided on the elastic right-angled plate 9. The elastic right-angled plate 9 is bonded to the retardation film 6 through the adhesive layer 10. One side of the elastic right-angled plate 9 is bonded to the polarizing original film 7. Through the butt joint of the elastic right-angled plate 9 and the retardation film 6, the relatively rough surface of the elastic right-angled plate 9 is bonded between the polarizing base layer 5 and the polarizing original film 7, so as to fix the retardation film 6 between the polarizing base layer 5 and the polarizing original film 7, thereby improving the connection stability between the retardation film 6 and the polarizer for the STN liquid crystal display.

[0015] Example two: On the basis of Example one, a blue-light-proof film 2 is bonded to the top of the TAC film 3, which can endow the polarizer for the STN liquid crystal display with the function of preventing blue-light radiation. An anti-static film 1 is bonded to the blue-light-proof film 2, which can improve the anti-static performance of the polarizer for the STN liquid crystal display and effectively reduce the damage caused by static electricity to electronic products.

[0016] Example three: On the basis of Example one, the material of the low-refractive-index film 4 is fluorinated acrylate polymer resin, which can reduce the influence brought by light irradiation on the polarizer for the STN liquid crystal display through the low-refractive-index film 4. The material of the retardation film 6 is polycarbonate, and the retardation film 6 can be made by film-forming treatment and high-precision stretching processing of polycarbonate. The retardation film 6 eliminates blue-violet light and yellow-green light appearing on the screen of the STN liquid crystal display by compensating for the difference in light transmission speed. The material of the anti-static film 1 is PVC. PVC belongs to a polar high polymer and has a greater affinity for conductive substances such as water, so its resistance is smaller than that of non-polar polyolefins, but it still has a relatively high volume resistance and breakdown voltage. The polar groups of polyvinyl chloride are directly attached to the main chain. Below the glass transition temperature, the dipole chain segments are restricted by the main chain atoms of the frozen structure and cannot move, so no dipole polarization occurs, and it can be used as a high-frequency insulating material at room temperature, thereby achieving the purpose of anti-static.

[0017] Working principle:

[0018] By docking the elastic right-angle plate 9 with the retardation film 6, the surface structure of the elastic right-angle plate 9 is relatively rough compared with that of the retardation film 6. The relatively rough surface of the elastic right-angle plate 9 is adhered between the polarization base layer 5 and the polarization original film 7, so as to fix the retardation film 6 between the polarization base layer 5 and the polarization original film 7. At the same time, the adhesion between the retardation film 6 and the polarization base layer 5 and the polarization original film 7 is used for auxiliary positioning, thereby improving the connection stability between the retardation film 6 and the polarizer for STN liquid crystal display.

[0019] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polarizer for STN type liquid crystal display with a phase difference film, characterized in that: The invention comprises a TAC film (3), a low-refractive film (4), a polarizing base layer (5), a phase difference film (6), a polarizing original film (7), and a pressure-sensitive adhesive layer (8) which are arranged in sequence. The TAC film (3) is bonded to the low-refractive film (4), the low-refractive film (4) is bonded to the polarizing base layer (5), the polarizing base layer (5) is bonded to the phase difference film (6), the phase difference film (6) is bonded to the polarizing original film (7), and the polarizing original film (7) is bonded to the pressure-sensitive adhesive layer (8). The polarizing base layer (5) comprises two elastic right-angle plates (9) bonded thereto. A through hole matching the elastic right-angle plates (9) is provided in the phase difference film (6). An adhesive layer (10) is provided on the elastic right-angle plate (9). The elastic right-angle plate (9) is bonded to the phase difference film (6) through the adhesive layer (10), and one side of the elastic right-angle plate (9) is bonded to the polarizing original film (7).

2. A polarizer for STN type liquid crystal display with a phase difference film according to claim 1, characterized in that: A blue light protection film (2) is bonded to the top of the TAC film (3).

3. A polarizer for STN type liquid crystal display with a phase difference film according to claim 2, characterized in that: An anti-static film (1) is bonded onto the anti-blue light film (2).

4. The polarizer for STN type liquid crystal display with phase difference film according to claim 1, characterized in that: The material of the low-refractive film (4) is fluorine-containing acrylic polymer resin.

5. The polarizer for STN type liquid crystal display with phase difference film according to claim 1, characterized in that: The material of the phase difference film (6) is polycarbonate.

6. The polarizer for STN type liquid crystal display with phase difference film according to claim 3, characterized in that: The material of the antistatic film (1) is PVC.

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