CN215769103U

CN215769103U - Polaroid, touch liquid crystal panel and touch liquid crystal display module

Info

Publication number: CN215769103U
Application number: CN202121502843.3U
Authority: CN
Inventors: 佘友智; 仲树栋
Original assignee: Beijing Zenithnano Technology Co Ltd
Current assignee: Beijing Zenithnano Technology Co Ltd
Priority date: 2021-07-04
Filing date: 2021-07-04
Publication date: 2022-02-08
Anticipated expiration: 2031-07-04

Abstract

The utility model discloses a polarizer, comprising: the touch screen comprises a substrate, wherein the substrate is provided with a first surface and a second surface which are opposite, and a first TAC, a PVA and a second TAC which are arranged on the first surface of the substrate, at least one surface of the first surface and the second surface of the substrate is also provided with a transparent conducting layer, and the transparent conducting layer forms a touch electrode. The utility model also discloses a touch liquid crystal panel and a touch liquid crystal display module using the polaroid. The polaroid can reduce the thickness of touch liquid crystal panels and touch liquid crystal display module products and simplify the production process flow.

Description

Polaroid, touch liquid crystal panel and touch liquid crystal display module

Technical Field

The utility model relates to the field of display, in particular to a polarizer, a liquid touch liquid crystal panel and a touch liquid crystal display module.

Background

With the development of technology, touch display devices are becoming more and more popular, and touch in the market is mainly capacitive touch. In the field of liquid crystal display, touch modules generally have the forms of on-cells, In-cells and the like, and mainly use In-cells. The structure of the touch module is mainly a glass-Film (GFF) structure, and two extra OCAs and two conductive Film materials with patterns are required in the production process of the touch screen, and a normal touch function can be realized after an integral bonding process. And the entire process results in an increase in the thickness of the product itself. In the process of implementing the GFF process, an extra touch screen manufacturer is required to complete the entire process, which increases the cost of the product.

Disclosure of Invention

The utility model provides a polarizer, which can integrate a touch module on the polarizer, reduce the overall thickness of a product and simplify the production flow of the product.

The polarizer provided by the utility model comprises a substrate, wherein the substrate is provided with a first surface and a second surface which are opposite, and a first TAC, a PVA and a second TAC are arranged on the first surface of the substrate.

Transparent conducting layers are arranged on the first surface and the second surface of the substrate, and the transparent conducting layers respectively form a first touch electrode and a second touch electrode.

Preferably, a transparent first transparent conductive layer, an insulating layer and a second transparent conductive layer are sequentially arranged on one surface of the first surface and the second surface of the substrate; one of the first transparent conducting layer and the second transparent conducting layer forms a first touch electrode and a second touch electrode, and the other of the first transparent conducting layer and the second transparent conducting layer forms a bridge; one of the first touch electrode and the second touch electrode is connected by a bridge.

Preferably, the transparent conductive layer is an ITO conductive layer, or an IZO conductive layer, or a silver nanowire conductive layer, or a metal mesh conductive layer.

The utility model also provides a touch liquid crystal panel, which comprises an array substrate, a liquid crystal layer, an electrode layer, an optical filter and the polarizer.

The utility model also provides a touch liquid crystal display module, a backlight module and the touch liquid crystal panel.

The polaroid provided by the utility model can reduce the thickness of touch liquid crystal panels and touch liquid crystal display module products and simplify the production process flow.

Drawings

FIG. 1 is a schematic diagram of a polarizer according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a touch electrode formed on the transparent conductive layer in fig. 1;

FIG. 3 is a schematic structural diagram of the touch module of FIG. 2 from another view angle;

FIG. 4 is a schematic diagram of a polarizer according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of a touch electrode formed by the first transparent conductive layer and the second transparent conductive layer in fig. 4;

FIG. 6 is a schematic structural view taken along section A-A of FIG. 5;

fig. 7 is a schematic cross-sectional structure diagram of a touch electrode according to another embodiment of the utility model.

Wherein:

10 PVA; 20 TAC; 30 of pressure-sensitive adhesive; 40, release film; 50 a substrate; 51/52 a transparent conductive layer; 53 an insulating layer; 60 a protective layer; 100 touch module; a TX1/TX2 first touch electrode; RX1/RX2 second touch electrode; b, BR bridging;

Detailed Description

The foregoing and other technical and scientific aspects, features and advantages of the present invention will be apparent from the following detailed description of a preferred embodiment, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting. The utility model is described in further detail below with reference to the accompanying drawings:

fig. 1 is a schematic view of a polarizer structure according to an embodiment of the utility model. As shown in fig. 1, in this embodiment, the polarizer includes a substrate 50, PVA10, and TAC20 on two sides of the PVA10, for convenience of description, TAC20 closer to the substrate 50 is denoted as a first TAC, and TAC20 relatively far from the substrate 50 is denoted as a second TAC, where a pressure-sensitive adhesive 30 may further be disposed between the substrate 50 and the first TAC, a release film 40 is further disposed on one side of the second TAC far from the substrate 50, and a pressure-sensitive adhesive 30 is disposed between the release film 40 and the second TAC. The polarizer of the utility model integrates the touch module 100, and the first transparent conductive film 51 and the second transparent conductive film of the touch module 100 are respectively disposed on two opposite surfaces of the substrate 50, for convenience of description, a surface of the substrate 50 facing to the TAC20 is referred to as a first surface, a surface of the substrate 50 away from the TAC20 is referred to as a second surface, the first transparent conductive layer 51 is disposed on the first surface, and the second transparent conductive layer 52 is disposed on the second surface.

Fig. 2 and fig. 3 are schematic structural diagrams of a touch module according to an embodiment of the utility model from different viewing angles. The touch module 100 includes a substrate 50, a first transparent conductive layer 51 and a second transparent conductive layer 52, wherein the first transparent conductive layer 51 and the second transparent conductive layer 52 respectively form a first touch electrode TX and a second touch electrode RX, the touch electrodes in this embodiment are a plurality of strip electrodes, which are only examples and do not limit the scope of the present invention, and in other embodiments, the touch electrodes may be diamond-shaped, square-shaped or other shapes.

FIG. 4 is a schematic view of a polarizer according to another embodiment of the present invention. In this embodiment, the polarizer has a similar structure to the polarizer in the embodiment of fig. 1, except that in this embodiment, the first transparent conductive film 51 and the second transparent conductive film 52 of the touch module 100 are both disposed on the second surface of the substrate 50. Specifically, the second surface of the substrate 50 is sequentially provided with a second transparent conductive layer 52, an insulating layer 53, a first transparent conductive layer 51, and a protective layer 60.

Fig. 5 and 6 are schematic structural diagrams of the touch module 100 in the polarizer according to the embodiment of fig. 4. Fig. 6 is a simplified schematic diagram of the cross-sectional structure a-a in fig. 5. As shown in fig. 5, in the present embodiment, the touch electrodes formed by the transparent conductive film of the touch module 100 are diamond-shaped electrodes, and in the present embodiment, the diamond-shaped electrodes are formed by the second transparent conductive layer 52, and the first transparent electrode 51 forms a bridge BR. The touch control electrodes are a plurality of row electrodes Tx and a plurality of column electrodes Rx, the diamond electrodes in each row electrode are connected with each other, the diamond electrodes in each column electrode are connected with each other through a bridge BR, wherein an insulating layer 53 is arranged at the connection position of the bridge BR and the row electrodes, and the bridge BR is isolated from the row electrodes Tx by the insulating layer 53 in the bridging connection mode shown in fig. 6.

In another embodiment of the present invention, as shown in fig. 7, the diamond-shaped electrodes are all formed by the first transparent conductive layer 51, the second transparent electrode 52 forms a bridge BR, and the insulating layer 53 isolates the bridge BR from the row electrode Tx.

When the polaroid is applied to the touch liquid crystal panel and the touch liquid crystal display module, the touch function is realized through the PET on the polaroid, so that the product thickness generated by the traditional GFF (glass fiber filter) process can be effectively reduced, the touch function of TP is directly realized in the production process of the polaroid, the production cost of the touch liquid crystal panel and the touch liquid crystal display module complete machine can be effectively reduced, and the production efficiency of the complete machine is improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the utility model, which is defined by the appended claims and all simple equivalent changes and modifications within the scope of the utility model. Moreover, it is not necessary for any embodiment or claim of the utility model to address all of the objects, advantages, or features disclosed herein. In addition, the abstract and the title of the utility model are provided for assisting the retrieval of patent documents and are not intended to limit the scope of the utility model. Furthermore, the terms "first", "second", and the like in the description or the claims are used only for naming elements (elements) or distinguishing different embodiments or ranges, and are not used for limiting the upper limit or the lower limit on the number of elements.

Claims

1. A polarizer, comprising: the touch screen comprises a substrate, wherein the substrate is provided with a first surface and a second surface which are opposite to each other, and first TAC, PVA and second TAC are arranged on the first surface of the substrate.

2. The polarizer of claim 1, wherein the first surface and the second surface of the substrate are provided with transparent conductive layers, and the transparent conductive layers form a first touch electrode and a second touch electrode, respectively.

3. The polarizer according to claim 1, wherein a first transparent conductive layer, an insulating layer and a second transparent conductive layer are sequentially provided on one of the first surface and the second surface of the substrate.

4. The polarizer of claim 3, wherein one of the first transparent conductive layer and the second transparent conductive layer forms a first touch electrode and a second touch electrode, and the other of the first transparent conductive layer and the second transparent conductive layer forms a bridge.

5. The polarizer of claim 4, wherein one of the first touch electrode and the second touch electrode is connected by a bridge.

6. The polarizer of claim 1, further comprising a protective layer disposed on a side of the substrate away from the PVA and on an outermost surface of the polarizer.

7. The polarizer according to any of claims 1 to 6, wherein the transparent conductive layer is an ITO conductive layer, or an IZO conductive layer, or a nano silver wire conductive layer, or a metal mesh conductive layer.

8. A touch control type liquid crystal panel sequentially comprises an array substrate, a liquid crystal layer, an electrode layer, an optical filter and a polaroid, and is characterized in that the polaroid is the polaroid of any one of claims 1 to 6.

9. The touch-sensitive liquid crystal panel according to claim 8, wherein the transparent conductive layer is an ITO conductive layer, an IZO conductive layer, a silver nanowire conductive layer, or a metal mesh conductive layer.

10. A touch-control liquid crystal display module, comprising a backlight module and the liquid crystal panel of claim 8.