Liquid crystal writing board which can be partially erased and partially erasing method
A technology of writing board and liquid crystal, which is applied in the field of liquid crystal writing, can solve the problems that the liquid crystal writing board cannot be partially wiped, and the writing efficiency of the liquid crystal writing board is low, so as to improve writing efficiency and user experience, enhance practicability, and save installation space Effect
Inactive Publication Date: 2019-04-30
SHENZHEN HONGHE INNOVATION INFORMATION TECH CO LTD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a partially erasable liquid crystal writing board and a local erasing method in view of the deficiencies of the prior art, so as to overcome the problem that the liquid crystal writing board of the prior art cannot be partially wiped, resulting in a liquid crystal writing board. The defect of low writing efficiency
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[0021] Such as figure 1 , figure 2 and image 3 As shown, the partially erasable liquid crystal writing board of the present invention includes an upper conductive film 11, a liquid crystal film 12, and a lower conductive film 13. The upper conductive film 11, the liquid crystal film 12, and the lower conductive film 13 are stacked in sequence and attached to the bottom plate. The upper conductive film 11 and the lower conductive film 12 are separated by different conductive regions 14, the conductive regions 14 are provided with lead-out electrodes 15, and the lead-out electrodes 15 are connected to an erasing module, and the erasing module is used to determine The erasing area of the liquid crystal film 12 is positioned and a voltage is applied to erase the writing in the corresponding area of the liquid crystal film 12 . According to an embodiment of the present invention, the erasing module is connected to the touch recognition module, and the touch recognition modu...
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The invention discloses a liquid crystal writing board which can be partially erased. The partially erasable liquid crystal writing board comprises an upper conductive film, a liquid crystal film anda lower conductive film that are laminated successively and then are attached to a bottom plate. Different conductive areas are separated at the upper conductive film and the lower conductive film; and leading-out electrodes are arranged in the conductive regions and are connected to an erasing module. The erasing module is used for locating the liquid crystal film based on an erasing region determined by the upper conductive film and the lower conductive film and applying voltages to erase the writing in the corresponding area of the liquid crystal film. In addition, a method for partially erasing of a liquid crystal writing board comprises the following steps that: step A1, a gesture mode is preset; step A2, the conductive areas, where the touch gesture is located, of the upper conductive film and the lower conductive film are determined; and step S3, if the touch gesture conforms to the gesture mode, voltages are applied to an area, corresponding to the overlapped area of the conductive areas of the upper conductive film and the lower conductive film, of the liquid crystal film so as to erase the writing content in the area, corresponding to the overlapped area, of the liquid crystal film.
Description
technical field [0001] The invention relates to the technical field of liquid crystal writing, in particular to a partially erasable liquid crystal writing board and a partially erasing method. Background technique [0002] The liquid crystal writing board of the prior art can only be erased on the whole screen, and cannot be partially erased. After writing a lot of content on the liquid crystal writing board, if there is a mistake in it, or after writing a formula, it is found that there is a wrong operation symbol in the middle If it is deleted, all the written content must be erased and rewritten to correct it, which causes great inconvenience to the use of the liquid crystal writing tablet and affects the efficiency of writing. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a partially erasable liquid crystal writing board and a local erasing method in view of the deficiencies of the prior art, so as to over...
Claims
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IPC IPC(8): G02F1/1333
CPCG02F1/13338G06F3/04883
Inventor 陈可方
Owner SHENZHEN HONGHE INNOVATION INFORMATION TECH CO LTD