CN210864667U

CN210864667U - Touch display screen

Info

Publication number: CN210864667U
Application number: CN201921976163.8U
Authority: CN
Inventors: 李涛
Original assignee: Yancheng Mudong Photoelectric Technology Co ltd
Current assignee: Mutto Optronics Corp
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-06-26
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a touch display screen, this display screen include nanometer silver line conducting layer, the X direction induction module of nanometer silver line conducting layer includes many drive wires that provide drive signal, and Y direction induction module is including the detection line that provides capacitive coupling signal, and the drive wire forms the electric capacity node with the cross section of detection line. The touch display screen provided by the utility model has good bending performance by using the nano silver wire as the conductive layer, and can be well applied to flexible screens; the production and the manufacture of the On-cell touch display panel in a common touch screen factory can be realized.

Description

Touch display screen

Technical Field

The utility model relates to a touch display screen.

Background

The Touch Screen display (Touch Screen) can make the user only need to lightly Touch the icons or characters on the computer display Screen with fingers to realize the operation on the host, thus getting rid of the operation of the keyboard and the mouse and making the human-computer interaction more straightforward.

Touch screens are widely used in portable electronic devices such as mobile phones, and are gradually applied to other display terminal devices. The touch panel function is integrated with the liquid crystal panel more favorably than a method in which a touch panel is provided on a liquid crystal panel. In-cell is a method of embedding touch panel functions into liquid crystal pixels, but the method has an influence on display performance, yield is difficult to guarantee, mass production cost is high, and the method can be produced only In a liquid crystal panel factory, so that the method is not very large In application.

The On-cell refers to a method of embedding a touch panel function between a color filter substrate and a polarizing plate. With the generation of the On-cell technology, the integration of the liquid crystal panel and the touch panel becomes simple. Touch control can be realized by forming a simple transparent electrode pattern between the filter substrate and the polarizing plate, and thus the yield is also easily improved. In addition, the area of the effective display area in the pixel is not changed, and the image quality degradation phenomenon is not generated.

Although the On-cell technology difficulty is reduced by a few compared with the In-cell technology, the On-cell technology is still not suitable for production and manufacturing of common touch screen factories. The On-cell and the In-cell both adopt ITO as a conductive layer, but the ITO has poor bending performance and no multi-bending performance, cannot be applied to a flexible display screen, and increases the thickness of a touch module.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a touch display screen which has good bending performance and can be well applied to a flexible screen.

For realizing the utility model discloses an aim, the touch display screen that provides herein includes nanometer silver line conducting layer, the X direction induction module of nanometer silver line conducting layer includes many drive wires that provide drive signal, and Y direction induction module is including the detection line that provides capacitive coupling signal, and the drive wire forms the electric capacity node with the cross section of detection line and constitutes touch sensor, touch sensor and touch chip electrical connection.

Further, the nano silver wire conducting layer is arranged on the color film substrate. Lay the silver wire conducting layer of nanometer and improved on various membrane base plate the utility model provides a touch display screen's luminousness.

Further, the utility model provides a touch display screen still includes glass apron, first polaroid, liquid crystal molecule, array substrate, second polaroid and is shaded, first polaroid with the glass apron is laid in the upper surface of various membrane base plate; the liquid crystal molecules, the array substrate, the second polarizer and the backlight are arranged on the lower surface of the color film substrate.

Furthermore, the glass cover plate and the first polarizer are completely attached through OCA.

Furthermore, the first polarizer and the color film substrate are completely attached through OCA.

Furthermore, the array substrate and the second polarizer are completely attached through OCA.

Furthermore, the touch sensor and the touch chip are electrically connected through a flexible printed circuit board.

The beneficial effects of the utility model include:

1. the nano silver wire has good bending performance as the conductive layer and can be well applied to the flexible screen; the production and the manufacture of the On-cell touch display panel in a common touch screen factory can be realized.

2. The nano silver wire is used as a conductive layer, so that the sensitivity and the light transmittance of the touch display screen are improved, and the thickness of the touch display screen is reduced.

3. The touch sensor and the touch chip are electrically connected through the flexible printed circuit board, so that the bending performance of the touch display screen is further improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural diagram of a touch display screen provided by the present invention;

in the drawings: the liquid crystal display panel comprises a glass cover plate 1, a 2-OCA, a 3-first polarizer, a 4-TP, a 5-color film substrate, a 6-liquid crystal molecule, a 7-array substrate, a 8-second polarizer and a 9-backlight.

Detailed Description

The claimed invention will now be described in further detail with reference to the accompanying drawings and examples.

The utility model provides a touch display screen includes nanometer silver line conducting layer, and the X direction induction module of nanometer silver line conducting layer includes many drive wires that provide drive signal, and Y direction induction module is including providing the detection line of capacitive coupling signal, and the crossing of drive wire and detection line forms the capacitance node and constitutes touch sensor, touch sensor and touch chip electrical connection.

The touch sensor and the touch chip are electrically connected through the flexible printed circuit board, and certainly, the touch sensor and the touch chip can also be electrically connected through a conducting wire.

The nano silver wire conducting layer is bonded and bound with an Anisotropic Conductive Film (ACF) through a binding instrument under the conditions of certain pressure (2.3 MPa) and temperature (165 ℃) for 10 s; TP 4 is formed.

Referring to fig. 1, the touch display screen including the nano silver wire conductive layer includes a glass cover plate 1, a first polarizer 3, a color film substrate 5, a liquid crystal molecule 6, an array substrate 7, a second polarizer 8 and a backlight 9, wherein the first polarizer 3, the color film substrate 5, the liquid crystal molecule 6, the array substrate 7 and the second polarizer 8 are disposed between the glass cover plate 1 and the backlight 9, and a TP 4 formed by the nano silver wire conductive layer and the anisotropic conductive film is disposed on the color film substrate 5.

Wherein, laminate entirely through OCA 2 between glass apron 1 and the first polaroid 3. The first polarizer 3 and the color film substrate 5 are completely attached through OCA 2. The array substrate 7 and the second polarizer 8 are completely attached through the OCA 2. Of course, full lamination can also be realized between the glass cover plate 1 and the first polarizer 3, between the first polarizer 3 and the color film substrate 5, and between the array substrate 7 and the second polarizer 8 by other methods.

The touch display screen provided in this embodiment mode can be manufactured by any method, and is manufactured by the following steps:

step one, manufacturing a nano silver wire conducting layer on a color film substrate

The nano silver wire conducting layer is coated on the surface of a color film substrate of the LCD in the form of nano silver wire solution. Preparing a nano silver wire solution, coating the nano silver wire solution on a color film substrate by adopting a seam coating method, and obtaining a wet nano silver wire conductive electrode layer by adjusting the width of a seam, the distance between a nozzle and a roller, the conveying speed and the feeding of a pump;

step two, manufacturing TP on the color film substrate

And etching the nano silver wire conductive layer by using a yellow light process to form a conductive circuit layer. The X-direction sensing module in the conductive circuit layer comprises a plurality of driving lines for providing driving signals, the Y-direction sensing module comprises detection lines for providing capacitive coupling signals, and capacitive nodes are formed at the intersections of the driving lines and the detection lines; the obtained touch sensor touch chip is electrically connected with a Flexible Printed Circuit (FPC) through a binding instrument and needs to be bonded and bound with the ACF glue under the conditions of certain pressure (2.3 MPa) and temperature (165 ℃) for 10 s;

step three, laminating

The glass cover plate 1 and the first polarizer 3 are completely laminated through OCA 2. The first polarizer 3 and the color film substrate 5 are completely attached through OCA 2. The array substrate 7 and the second polarizer 8 are completely attached through the OCA 2. The defoaming condition was 45 ℃/15 min/3.5 kg, and whether or not there was any bubble was observed, and if there was any bubble, defoaming was carried out again.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims

1. A touch display screen, characterized by: the display screen comprises a nano silver wire conducting layer, an X-direction induction module of the nano silver wire conducting layer comprises a plurality of driving wires for providing driving signals, a Y-direction induction module comprises a detection wire for providing capacitive coupling signals, capacitive nodes are formed at the intersection of the driving wires and the detection wire to form a touch sensor, and the touch sensor is electrically connected with a touch chip.

2. The touch display screen of claim 1, wherein: the nano silver wire conducting layer is arranged on the color film substrate (5).

3. The touch display screen of claim 2, wherein: the liquid crystal display panel further comprises a glass cover plate (1), a first polarizer (3), liquid crystal molecules (6), an array substrate (7), a second polarizer (8) and a backlight (9), wherein the first polarizer (3) and the glass cover plate (1) are arranged on the upper surface of the color film substrate (5); the liquid crystal molecules (6), the array substrate (7), the second polarizer (8) and the backlight (9) are arranged on the lower surface of the color film substrate (5).

4. The touch display screen of claim 3, wherein: the glass cover plate (1) and the first polaroid (3) are completely attached through the OCA (2).

5. The touch display screen of claim 3, wherein: the first polarizer (3) and the color film substrate (5) are completely attached through the OCA (2).

6. The touch display screen of claim 3, wherein: the array substrate (7) and the second polarizer (8) are completely attached through the OCA (2).

7. The touch display screen of any one of claims 1-6, wherein: the touch sensor and the touch chip are electrically connected through a flexible printed circuit board.