Device and method for partially erasing liquid crystal tablet

Abstract

The invention discloses a device for partially erasing a liquid crystal tablet and a forming method thereof. The local erasing liquid crystal tablet device includes a liquid crystal tablet and an erasing pen, and the liquid crystal tablet includes: a substrate; a first conductive layer and an infrared absorbing material layer, and the first conductive layer and the infrared absorbing material layer The size is substantially uniformly arranged on the substrate; a liquid crystal layer; a second conductive layer; a flexible transparent substrate; both the first conductive layer and the second conductive layer are transparent conductive layers, and the second conductive layer forms On the flexible transparent substrate, the substrate and the flexible transparent substrate clamp the liquid crystal layer together to form a liquid crystal cell of a liquid crystal tablet, and the erasing pen includes an infrared emitting light source and a control switch. The partial erasing liquid crystal tablet device of the present invention adopts non-contact photothermal conversion to realize partial erasing, has high erasing efficiency, is convenient to use, and is energy-saving and cheap.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display applications, in particular to a device for partially erasing a liquid crystal tablet and a forming method thereof. Background technique [0002] At present, in the fields of education and business applications, liquid crystal writing tablets are more and more widely used, and the performance requirements of liquid crystal writing tablets promote the continuous development of liquid crystal writing tablet technology and the upgrading of products. The first-generation handwriting board is a digital board, and its production equipment is expensive and difficult to master, and the handwriting cannot be precisely controlled; with the rapid development of display technology, the second-generation capacitive screen board was born, which uses the static electricity of the human body to achieve touch operation and touch effect. Sensitive, but you can’t touch the screen after wearing gloves,...

AI Technical Summary

Problems solved by technology

The Chinese utility model patent with the application number CN201620117008.0 filed by the patentee Shenzhen Weiku Optoelectronics Co., Ltd. discloses a semiconductor thermal erasing technology, which uses a semiconductor block to heat the liquid crystal to an isotropic liquid, and the liquid crystal becomes weak after cooling. The multi-domain structure of scattering exists stably, so that the transition from the plane reflective state to the focal conic scattering state is realized, that is, the purpose of writing erasure is realized, but the heat transfer rate of the semiconductor is slow, and erasure within 2 seconds cannot be achieved, and there are Hidden dangers of burns, high energy consumption, and breakthroughs in low energy consumption and fast partial erasing technology are the keys to the widespread use of LCD tablets in the educational smart consumer electronics market.

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