Liquid crystal handwriting board, handwriting system and control method of handwriting system

A liquid crystal handwriting and liquid crystal panel technology, which is applied to the handwriting system and the control of the handwriting system, and the field of the liquid crystal handwriting board, and can solve the problems of the poor effect of the liquid crystal handwriting board and the like.

Pending Publication Date: 2021-12-31
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the problem of poor effect when partially erasing the liquid crystal tablet in the prior art, and the technical scheme is as follows:

Method used

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  • Liquid crystal handwriting board, handwriting system and control method of handwriting system
  • Liquid crystal handwriting board, handwriting system and control method of handwriting system
  • Liquid crystal handwriting board, handwriting system and control method of handwriting system

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0057] In related art, please refer to figure 1 and figure 2 , figure 1 It is a top view of a liquid crystal tablet provided by the related technology, figure 2 yes figure 1 The cross-sectional view of the liquid crystal tablet shown at A-A'. The liquid crystal tablet 00 can generally include: a liquid crystal panel 01 , a black aluminum honeycomb panel 02 and an infrared positioning device 03 .

[0058] Wherein, the liquid crystal panel 01 may include: a first substrate 011 and a second substrate 012 disposed opposite to each other, and a liquid crystal layer 013 between them. The first substrate 011 usually has a plurality of pixel electrodes arranged in an array (not shown in the figure), the second substrate 012 has a ...

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PUM

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Abstract

The invention discloses a liquid crystal handwriting board, a handwriting system and a control method of the handwriting system, and belongs to the technical field of display. The liquid crystal handwriting board comprises a liquid crystal panel, a photosensitive assembly and a driving assembly. When the handwriting displayed on the liquid crystal handwriting board needs to be erased, an erasing tool capable of emitting the target light can be adopted to erase the handwriting. After the erasing tool emits the target light to the liquid crystal panel, the photosensitive assembly can determine the position where the target light irradiates the liquid crystal panel through the target light sensed by at least part of the photosensitive elements, and the position where the target light irradiates the liquid crystal panel is the position of a to-be-erased pixel area. Therefore, the liquid crystal handwriting board can apply the pixel voltage to the pixel electrodes in the to-be-erased pixel area through the control assembly, so that the handwriting in the to-be-erased pixel area is erased.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a liquid crystal tablet, a handwriting system and a control method for the handwriting system. Background technique [0002] A tablet is an electronic device used for writing and drawing. Among them, the liquid crystal tablet has the advantages of low power consumption and clear handwriting, and has occupied a large market share in China in recent years. [0003] In order to be able to partially erase the handwriting displayed on the liquid crystal tablet, it is necessary to integrate an infrared positioning device in the liquid crystal tablet. When using an erasing tool (such as an eraser) to erase the handwriting displayed on the liquid crystal tablet, the position of the erasing tool on the liquid crystal tablet can be determined by an infrared positioning device, so as to determine the position to be erased in the liquid crystal tablet. area. Afterwards, the liq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/1343G02F1/1333
CPCG02F1/13318G02F1/134309G02F1/13338
Inventor 王家星闫浩武晓娟袁洪亮王建毕谣段金帅葛杨段智龙于志强秦相磊王修亮尹晓峰
Owner BOE TECH GRP CO LTD
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