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Capacitive screen, liquid crystal handwriting apparatus, touch display component and intelligent terminal

A capacitive screen, liquid crystal technology, applied in electrical digital data processing, optics, instruments, etc., can solve the problem that the capacitive screen cannot determine the size of the pressing force

Active Publication Date: 2017-08-18
SHENZHEN WICUE OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a capacitive screen, which aims to solve the problem that the existing capacitive screen cannot determine the size of the pressing force, and cannot obtain more control instructions according to the pressing force.

Method used

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  • Capacitive screen, liquid crystal handwriting apparatus, touch display component and intelligent terminal
  • Capacitive screen, liquid crystal handwriting apparatus, touch display component and intelligent terminal
  • Capacitive screen, liquid crystal handwriting apparatus, touch display component and intelligent terminal

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Embodiment Construction

[0027] In order to illustrate the technical solutions of the present invention more clearly, the technical solutions of the various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] Such as figure 1 and figure 2 As shown, the capacitive screen 100 proposed by the present invention includes a first base layer 110, a first conductive layer 120, a mixed layer, a second conductive layer 140 and a second base layer 150 arranged in sequence from top to bottom, and the mixed layer includes cholesterol phase liquid crystal 131 and a mixture of polymer structures, and an optical rotator for controlling the pitch of the cholesteric phase liquid crystal 131; wherein the first conductive layer 120 includes a number of first transparent electrodes 121 arranged in parallel, between two adjacent first transparent electrodes There is a gap; the second conductive layer 140 includes several second transparent electro...

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Abstract

The invention discloses a capacitive screen. The capacitive screen comprises a first substrate layer, a first conductive layer, a mixed layer, a second conductive layer and a second substrate layer arranged in sequence from top to bottom, wherein the mixed layer comprises a mixture of a cholesterol phase liquid crystal and a macromolecular structure, and an optical rotation agent used for controlling a screw pitch of the cholesterol phase liquid crystal; the first conductive layer comprises multiple first transparent electrodes arranged in parallel, and a gap is formed between the two adjacent first transparent electrodes; and the second conductive layer comprises multiple second transparent electrodes arranged in parallel, and a gap is formed between the two adjacent second transparent electrodes. According to the technical scheme, a pressing position and pressing force when the capacitive screen is pressed can be determined. In addition, the invention discloses a liquid crystal handwriting apparatus, a touch display component and an intelligent terminal.

Description

technical field [0001] The invention relates to the field of liquid crystal technology, in particular to a capacitive screen, a liquid crystal handwriting device, a touch display component and an intelligent terminal. Background technique [0002] When the existing capacitive screen is pressed, the user's finger and the working surface form a coupling capacitor, because the working surface is connected with a high-frequency signal, so the finger absorbs a small current, which is respectively from the four corners of the screen. The current flowing out of the electrodes and theoretically flowing through the four electrodes is proportional to the distance from the finger to the four corners. The controller obtains the position through precise calculation of the four current ratios. [0003] It can be seen that the existing capacitive touch screen can only determine the pressing position, but cannot determine the pressing force, and cannot obtain more control instructions accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G02F1/1333G02F1/1343
CPCG02F1/13338G02F1/134309G06F3/044G06F2203/04102
Inventor 李风华
Owner SHENZHEN WICUE OPTOELECTRONICS CO LTD