WO2011054136A1

WO2011054136A1 - Coplanar multicell liquid crystal display inductive screen

Info

Publication number: WO2011054136A1
Application number: PCT/CN2009/001555
Authority: WO
Inventors: 蒋实
Original assignee: Jiang Shi
Priority date: 2009-11-06
Filing date: 2009-12-25
Publication date: 2011-05-12
Also published as: CN101718921A

Abstract

A coplanar multicell liquid crystal display inductive screen comprises two single sided ITO glass (1, 2), two display electrodes (5, 6), two alignment layers (7, 8), a glue frame (3), a liquid crystal (9), a silver dot (4) and two polarizing plates (10, 11). The second single sided ITO glass (2) is provided above the first single sided ITO glass (1). The two polarizing plates (10, 11) are pasted on the non-ITO layers of the first and the second single sided ITO glass (1, 2), respectively. The two display electrodes (5, 6) are painted on the ITO layers of the first and the second single sided ITO glass (1, 2), respectively. The two alignment films (7, 8) are printed on the two display electrodes (5, 6), respectively.The glue frame (3) is arranged between the two alignment films (7, 8), and divides the portion between the two alignment films (7, 8) into a display electrode portion (31) and an inductive electrode portion (32). The liquid crystal (9) is sealed in the display electrode portion (31). The silver dot (4) is arranged on the glue frame (3) to make the two display electrodes (5, 6) electrically connect with each other.

Description

Same plane multi-box liquid crystal display sensing screen

Technical field

The invention relates to a non-contact type induction screen, in particular to a simple structure, thin thickness, convenient installation and fixation, long service life, strong environmental adaptability, simple production process, low cost, high transparency, reliable performance and wear resistance. , cost-effective multi-cassette LCD display sensor screen. Background technique

From the use of mechanical buttons, to the touch-sensitive MP3 MP4 in the streets, to touch phones, digital cameras, PC tablets, induction cookers, microwave ovens, air conditioners, refrigerator freezers, solar water heaters, electronic scales, fingerprint locks, electronics Doorbells, instrumentation, sports equipment, etc. can be said that we are entering a touch era.

The touch screen is the most convenient, simple, and intuitive input method. With modern people's demands for space saving and aesthetic and interactive display of human-machine display interfaces, traditional mechanical buttons will be replaced by conventional touch screens on certain levels.

From the technical principle to distinguish the touch screen, it can be divided into five basic categories: vector pressure sensing technology touch screen, resistance technology touch screen, capacitive technology touch screen, infrared technology touch screen, surface acoustic wave technology touch screen. Among them, the vector pressure sensing technology touch screen has withdrawn from the historical stage; the infrared technology touch screen is inexpensive, but its frame is fragile, easy to produce light interference, and distortion under the surface condition; the capacitive technology touch design is reasonable, but its image distortion problem is difficult. The fundamental solution is that the positioning of the capacitive touch screen is accurate, but its price is quite high, and it is afraid of scratching. The surface acoustic wave touch screen solves various defects of the touch screen in the past, and is not easy to be damaged. It is suitable for various occasions. The disadvantage is the screen surface. If there are water droplets and dust, the touch screen will become dull or even not working. According to the working principle of the touch screen and the medium for transmitting information, the touch screen is divided into four types, which are resistive type, infrared type, capacitive type and surface acoustic wave type.

According to the installation method, the touch screen can be divided into: plug-in type, built-in type and integral type. The plug-in touch screen directly mounts the touch detection system of the touch screen system in front of the display device. This touch screen is easy to install and is very suitable for temporary use. The built-in touch screen mounts the touch detection device in the housing of the display device, in front of the display. In the manufacture of the display device, the touch screen detecting device is fabricated on the display so that the display device directly has a touch function, which is an integral touch screen.

The non-contact liquid crystal display sensing screen is an improved combination of a liquid crystal display and a capacitive touch screen. Its melting It combines the advantages of accurate positioning of the resistor type, reasonable design of the capacitive design, clarity and damage of the acoustic wave, and the installation method is integral. Summary of the invention

The object of the present invention is to provide a non-contact sensing screen with simple structure, thin thickness, convenient installation and fixation, long service life, strong environmental adaptability, simple production process, low cost, high transparency and reliable performance.

To achieve the above object, the present invention provides a coplanar multi-cassette liquid crystal display sensing screen, which mainly comprises two single-sided bismuth glass, two display electrodes, two alignment films, one plastic frame, one liquid crystal, one silver dot, and two polarized lights. sheet. The second single-sided ITO glass is disposed on the first single-sided ITO glass, and the two polarizers are respectively attached to the non-layer of the first single-sided ITO glass and the second single-sided ITO glass. The two display electrodes are respectively coated on the ITO layers of the first single-sided ITO glass and the second single-sided ITO glass. The two alignment films are printed on the two display electrodes, respectively. The plastic frame is disposed between the two alignment films, and the plastic frame divides the two alignment films into a display electrode portion and a sensing electrode portion. The liquid crystal is packaged in the display electrode portion. The silver dot is disposed on the plastic frame to turn on the two display electrodes.

The advantages of the present invention are: The multi-cassette liquid crystal display sensing screen technology combines the advantages of a capacitive touch screen and a resistive touch screen to improve their shortcomings. This technique uses an ITO layer on a bismuth glass to make an inductive electrode. The sensing electrode and the display electrode are in the same layer, but are relatively independent in another or other accommodating spaces, and combine the traditional button screen and the liquid crystal display; make a transparent on the glass substrate of the liquid crystal display The conductive layer sensing electrode detects and converts the corresponding signal to the controller through the sensing IC to realize the touch. This method simplifies the production process, reduces the thickness of the product, increases the light transmittance, and covers any non-conductor protective layer (such as tempered glass, PVC transparent film, plexiglass, etc.) on the surface of the sensing screen, making it less susceptible to Scratch damage. DRAWINGS

1 is an exploded view of the in-plane multi-cassette liquid crystal display sensing screen.

2 is a structural view of a first embodiment of a coplanar multi-cassette liquid crystal display sensing screen.

FIG. 3 is a structural diagram of a second embodiment of the same-plane multi-cassette liquid crystal display sensing screen. Figure number description

1, the first single-sided ITO glass 2, the second single-sided enamel glass 3, plastic frame

4, silver dots 5, the first display electrode 6, the second display electrode 7, the first alignment film

8. Second alignment film 9, liquid crystal cell 10, first polarizer 11, and second polarizer 31. The display electrode portion 32 and the sensing electrode portion are specifically implemented,

The present invention will be further described below in conjunction with FIGS. 1 through 3:

2 is a first embodiment of the present invention: a coplanar multi-cassette liquid crystal display sensing screen comprising a first single-sided ITO glass 1, a second single-sided ITO glass 2, a plastic frame 3, and a silver dot 4 The first display electrode 5, the second display electrode 6, the first alignment film 7, the second alignment film 8, the liquid crystal 9, the first polarizer 10, and the second polarizer 11.

The tantalum conductive layer of the first single-sided ITO glass 1 is upward, and the ITO conductive layer of the second single-sided ITO glass 2 is downward.

The first single-sided ITO glass 1 is disposed below the second single-sided ITO glass 2.

The first polarizer 10 is attached to the bottom surface of the first single-sided ITO glass 1 as a non-layer.

The second polarizer 11 is attached to the non-ITO layer on the top surface of the second single-sided glass.

The first display electrode 5 is applied to the ITO conductive layer of the first single-sided ITO glass 1.

The first alignment film 7 is printed on the first display electrode 5.

The second display electrode 6 is applied to the ITO conductive layer of the second single-sided ITO glass 2.

The second alignment film 8 is printed on the second display electrode 6.

The sealant 3 is installed between the first alignment film 7 and the second alignment film 8.

A closed accommodating space is formed between the sealant 3, the first alignment film 7, and the second alignment film 8 as a display electrode portion 31, and the liquid crystal 9 is mounted in the display electrode portion 31; a silver dot 4 is disposed on the sealant 3 To turn on the first display electrode 5 and the second display electrode 6. The sealant 3, the first alignment film 7, and the second alignment film 8 also form another closed accommodating space for the sensing electrode portion 32.

According to the same design principle, please refer to FIG. 3, which is a second embodiment of the present invention:

The tantalum conductive layer of the first single-sided ITO glass 1 is upward, and the tantalum conductive layer of the second single-sided ITO glass 2 is downward.

The first single-sided ITO glass 1 is disposed below the second single-sided bismuth glass 2.

The first polarizer 10 is attached to the bottom surface of the first single-sided glass 1 and is not an ITO layer.

The second polarizer 11 is attached to the top non-ITO layer of the second single-sided ITO glass 2.

The second display electrode 6 is applied to the ITO conductive layer of the first single-sided 1TO glass 1.

The second alignment film 8 is printed on the second display electrode 6.

The first display electrode 5 is applied to the ITO conductive layer of the second single-sided ITO glass 2.

The first alignment film 7 is printed on the first display electrode 5. The sealant 3 is installed between the first alignment film 7 and the second alignment film 8.

According to the same design principle, in the multi-cassette liquid crystal display sensing panel composed of the two single-sided ITO glasses 1 and 2, a plurality of sealed regions may be separated by the plastic frame 3 between the two alignment films 7 and 8. As the display electrode portion 31 and the sensing electrode portion 32, respectively, the sensing operation function of the multi-cassette liquid crystal display sensing screen can be realized.

The invention realizes the control function by using the single-sided bismuth glass to make the electrode circuit, changes the defects of the traditional touch screen, realizes the touch control function, and has the following advantages:

1. Simple structure, thin thickness, convenient installation and installation, no space occupation, multi-box liquid crystal display sensor screen integrates liquid crystal display and original induction button screen as a whole, simple structure, the overall thickness is less than the contact type touch screen It is 1.8 mm thin and easy to install.

2. The outer surface can be installed with a transparent plate with a maximum thickness of 10 mm. The multi-cassette liquid crystal display sensor screen can be in direct contact with the outside world, so it has a long service life, no scratches, and strong environmental adaptability.

3. The number of layers is small, the production process is simple, and the cost is low. The multi-cassette liquid crystal display sensing screen has less structure than the contact type touch screen, and the material and installation production cost are greatly reduced.

4, high transmittance, multi-box liquid crystal display sensor screen structure level is small, the transparency is naturally improved.

5, reliable performance, multi-cassette LCD display sensor screen can be isolated to protect the sensor screen, will not cause scratches, wear or deformation, performance is not affected, multi-cassette LCD sensor screen can be added on the touch surface The transparent plate of a certain thickness can realize the control function without directly contacting the control panel, so that the sensitivity is not lowered due to long-term use, and the service life is far beyond the normal liquid crystal display.

6, the environment adaptability, a wide range of applications, multi-cassette LCD display sensor screen because the outer surface can be installed decorative or protective panel, so the application range of the product is greatly expanded, so that many durable consumer appliances and instruments can be used.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention A person skilled in the art can make some modifications or modifications to the equivalent embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention. Technical simplifications Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of protection of the technical solutions of the present invention.

Claims

Claim

1. A coplanar multi-cassette liquid crystal display sensing screen, which mainly comprises two single-sided ITO glass, two display electrodes, two alignment films, a plastic frame, a liquid crystal, a silver dot, two polarizers, and a second single side. The ITO glass is disposed on the first single-sided ITO glass, and the two polarizers are respectively attached to the non-ITO layer of the first single-sided ITO glass and the second single-sided ITO glass, and the two display electrodes are respectively painted on the first On the ITO layer of the single-sided ITO glass and the second single-sided ITO glass, the two alignment films are respectively printed on the two display electrodes, wherein: a plastic frame is disposed between the two alignment films, and the plastic frame The two alignment films are divided into a display electrode portion and a sensing electrode portion, and the liquid crystal is packaged on the display electrode portion, and the defect is disposed on the plastic frame to turn on the two display electrodes.

2. The coplanar multi-cassette liquid crystal display sensing screen according to claim 1, wherein the plastic frame divides the two alignment films into a plurality of display electrode portions and a plurality of sensing electrode portions.