CN217060555U

CN217060555U - Polaroid, display module assembly and display device with OCA optical cement function

Info

Publication number: CN217060555U
Application number: CN202122541313.6U
Authority: CN
Inventors: 侯利军
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-07-26
Anticipated expiration: 2031-10-21

Abstract

The utility model discloses a polaroid with OCA optical cement function, including the polaroid body, polaroid body upper surface covers the optical cement layer. The utility model discloses increase OCA optical cement layer on "TAC + PVA + TAC + PSA" four-layer structure basis, increase OCA optical cement function, form novel polaroid, have the characteristics that the transparency is high, soft, viscidity is strong, and is strong to the high absorptivity of laminating gap, is difficult for producing the bubble between optical cement layer and the protection film layer, and UV resistant illumination is water-fast, high temperature resistant. The utility model discloses the polaroid has following advantage.

Description

Polaroid, display module assembly and display device with OCA optical cement function

Technical Field

The utility model belongs to the technical field of liquid crystal display, concretely relates to polaroid with OCA optical cement function.

Background

At present, the polaroid generally adopts a 'TAC + PVA + TAC + PSA' (protective film layer + polarizer layer + protective film layer + pressure sensitive adhesive layer) four-layer structure, and the polaroid is a necessary material for manufacturing LCM (LCD + BL, liquid crystal panel + backlight, namely a liquid crystal display module). Most of mobile phones on the market use the "apron + OCA + LCM" triplex structure to carry out the liquid crystal display module of laminating entirely, the liquid crystal display module is laminated manufacturing process completely and is long to produce the productivity bottleneck easily, and in "apron + OCA", "OCA + LCM" laminating the course of working entirely all to produce the bubble easily, and will carry out both sides and laminate entirely, the laminating time is long, and production efficiency is lower, reach the productivity production bottleneck basically at present, if can not raise the efficiency, hardly break through the productivity bottleneck.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve provides a polaroid with OCA optical cement function, and during this polaroid was applied to the display module assembly, can save module and laminating time and process steps greatly, broke through the productivity bottleneck, save the equipment cost, promote the product yield, reduce product cost, greatly improved the competitiveness of product.

In order to solve the above problems, the utility model adopts the following technical proposal:

the utility model provides a polaroid with OCA optical cement function, includes the polaroid body, polaroid body upper surface covers the optical cement layer.

Furthermore, the upper surface of the optical adhesive layer is attached to the first release film layer.

Further, the lower surface of the polarizer body is covered with a pressure sensitive adhesive layer.

Furthermore, the lower surface of the pressure-sensitive adhesive layer is attached to a release film layer II.

Furthermore, the stacking structure of the polarizer is sequentially a release film layer I, an optical adhesive layer, a protective film layer, a polarizer layer, a protective film layer, a pressure-sensitive adhesive layer and a release film layer II from top to bottom.

Further, the thickness of the optical adhesive layer is 100-200 microns.

Further, the light transmittance of the optical adhesive layer is more than or equal to 97%.

Further, the first protective film layer is a common TAC (polyethylene terephthalate) protective film layer, namely a common protective film layer, and a non-scratch-resistant hardening protective film layer.

A display module adopts above-mentioned any technical scheme a polaroid with OCA optical cement function.

A display device adopts the polaroid with the OCA optical cement function or the display module set.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model discloses increase OCA optical cement layer on "TAC + PVA + TAC + PSA" four-layer structure basis, increase OCA optical cement function, form novel polaroid, have characteristics that the transparency is high, soft, viscidity is strong, and is strong to the high absorptivity in laminating gap, is difficult for the gassing between optical cement layer and the protection film layer, resistant UV illumination, and is water-fast, high temperature resistant. The utility model discloses the polaroid has following advantage.

1. The upper protective layer HC-TAC (scratch-resistant hardening protective film layer) can be changed into common TAC, so that the cost can be reduced.

2. The optical adhesive layer can be integrally manufactured on the polarizer in a large piece, small pieces are not needed to be independently manufactured in a time-wasting manner, bubbles are not easily generated after the polarizer is cut into small finished products after the large piece is manufactured, and the efficiency and the yield are greatly improved.

3. Can be applied to full laminating display module assembly, display module assembly structure preparation can become apron + LCM two parts preparation by apron + OCA + LCM triplex, the manufacture process is reduced to disposable (apron + LCM) and laminates completely by twice laminating (apron + OCA, OCA + LCM), can save 50% quantity's laminating equipment and UV stove equipment entirely, production efficiency has improved one time, very big breakthrough the productivity bottleneck, thoroughly released and made the productivity.

4. The bubble problem can be greatly reduced, the product yield is greatly improved, and the service life of the product is prolonged.

Drawings

FIG. 1 is a schematic view of the stacking structure of the present invention;

wherein: 1. the optical film comprises a first release film layer, a second release film layer, a first optical adhesive layer, a second protective film layer, a first polarizer layer, a second protective film layer, a second polarizer layer, a pressure-sensitive adhesive layer, a second release film layer and a second polarizer layer.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The utility model relates to a take polaroid of OCA optical cement layer is applied to the display module assembly, can reduce the laminating step, reduces the bubble problem, improves the product yield.

Example 1

As shown in figure 1, have OCA optical cement function in order to realize the polaroid, the utility model discloses a polaroid body, polaroid body upper surface covers optical cement layer 2, the laminating of 2 upper surfaces on optical cement layer is from type rete 1.

In order to fit with the LCD conveniently, the lower surface of the polaroid body is covered with a pressure-sensitive adhesive layer 6, and the lower surface of the pressure-sensitive adhesive layer is fitted with a release film layer II 7.

To this embodiment, the stacked structure of the polarizer is, from top to bottom, a release film layer 1, an optical adhesive layer 2, a protective film layer 3, a polarizer layer 4, a protective film layer 5, a pressure-sensitive adhesive layer 6, and a release film layer two 7 in sequence.

As a preferable technical scheme, the thickness of the optical adhesive layer is 100-200 microns, and the light transmittance of the optical adhesive layer is more than or equal to 97%.

As a preferred technical scheme, the first protective film layer is a common TAC (polyethylene terephthalate), namely a common protective film layer, and a non-scratch-resistant hardened protective film layer.

The utility model also provides a display module assembly adopts above-mentioned technical scheme a polaroid with OCA optical cement function, make its convenience and touch-sensitive screen laminating.

The utility model also provides a display device adopts above-mentioned technical scheme a polaroid or foretell display module assembly with OCA optical cement function.

The utility model discloses the polaroid is from taking behind the optical cement layer, it is applied to the module structure, the module structure preparation can become apron + LCM two parts preparation by apron + OCA + LCM triplex, the manufacture process is reduced to once (apron + LCM) full laminating by twice full laminating (apron + OCA, OCA + LCM), can save 50% quantity's full laminating equipment and UV stove equipment, production efficiency has improved one time, very big breakthrough the productivity bottleneck, thoroughly released and made the productivity, can reduce the emergence of bubble problem simultaneously widely, very big improvement the product yield and improved the life-span of product use.

Claims

1. The utility model provides a polaroid with OCA optical cement function which characterized in that: the polarizer comprises a polarizer body, wherein the upper surface of the polarizer body is covered with an optical adhesive layer, the upper surface of the optical adhesive layer is attached to a first release film layer, the lower surface of the polarizer body is covered with a pressure-sensitive adhesive layer, the lower surface of the pressure-sensitive adhesive layer is attached to a second release film layer, the stacking structure of the polarizer is sequentially from top to bottom from the first release film layer, the optical adhesive layer, a first protective film layer, a polarizer layer, a second protective film layer, a pressure-sensitive adhesive layer and a second release film layer, and the thickness of the optical adhesive layer is 100-plus-200 microns.

2. A polarizer with OCA optical adhesive function according to claim 1, wherein: the light transmittance of the optical adhesive layer is more than or equal to 97%.

3. A polarizer with OCA optical adhesive function according to claim 1, wherein: the first protective film layer is ordinary TAC, namely an ordinary protective film layer, and a non-scratch-resistant hardening protective film layer.

4. The utility model provides a display module assembly which characterized in that: a polarizer having an OCA optical adhesive function comprising the polarizer according to any one of claims 1 to 3.

5. A display device, characterized by: a polarizer having an OCA optical adhesive function according to any one of claims 1 to 3 or a display module according to claim 4.