Micro-switch electronic writing board
An electronic writing board and micro-switch technology, applied in the fields of electrical digital data processing, optics, instruments, etc., can solve the problems of low yield, complex structure, and high manufacturing cost, and achieve low manufacturing cost, simple process, and simple structure Effect
Pending Publication Date: 2019-12-10
TRIPLE POWER LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
That is to say, in the current cholesteric liquid crystal writing tablet with position detection function, the structure of the element responsible for position sensing is relatively complicated, so the manufacturing cost is relatively increased
Also, because of the additional semiconductor manufacturing process steps, the yield rate will be low
Method used
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Embodiment Construction
[0030] The micro-switch electronic writing board according to various embodiments of the present invention will be described below with reference to related drawings, wherein the same elements will be described with the same reference symbols.
[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the various embodiments of the present invention are only used to explain the direction in a certain posture (as shown in the accompanying drawings). ) under the relative positional relationship, movement conditions, etc. between the various components, if the specific posture changes, the directional indication will also change accordingly.
[0032] The micro-switch electronic writing board in the following embodiments is an example of a large-size electronic blackboard (or whiteboard) used in interactive writing systems such as conferences or teaching, but the present invention is not limited thereto. The micro-switch electro...
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Abstract
The invention discloses a micro-switch electronic writing board. The micro-switch electronic writing board comprises a micro-switch array module and a cholesterol liquid crystal module, the micro-switch array module is provided with a plurality of micro-switch units, and a transparent conductive layer of each micro-switch unit is arranged on the surface, opposite to the light incident surface, ofthe first light-transmitting substrate. A first transparent electrode layer is arranged on the first surface of the second light-transmitting substrate and extends to the second surface of the secondlight-transmitting substrate through the conductive hole, and a second transparent electrode layer is arranged on one surface of the first substrate of the first cholesterol liquid crystal module, wherein the micro-switch array module and the first cholesterol liquid crystal module are overlapped with each other through the second light-transmitting substrate, so that the first cholesterol liquidcrystal layer is arranged between the first substrate and the second light-transmitting substrate. The micro-switch electronic writing board has the advantages of being simple and convenient in manufacturing process and low in manufacturing cost, and meanwhile has the function of detecting the writing position or the wiping position.
Description
technical field [0001] The invention relates to a micro-switch electronic writing board, in particular to a micro-switch electronic writing board capable of detecting writing or wiping positions. Background technique [0002] Cholesteric liquid crystal (Cholesteric liquid crystal) is to add a chiral dopant to the nematic liquid crystal to make it have a helical arrangement structure, and use two different types of liquid crystal molecules, reflecting and penetrating, under different voltage differences. Arrangement states to achieve different light transmittance, to achieve the display effect. Among them, in the planar state, the incident light will be reflected and colored; in the focal conic state, most of the incident light will be transmitted, and a small part will be scattered; and in the vertical state, the incident light will be completely penetrated. [0003] Since the cholesteric liquid crystal is in a stable state when it is in the planar state and the focal conic...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G02F1/31G02F1/1343G02F1/137G02F1/1347G06F3/041
CPCG02F1/31G02F1/134309G02F1/13439G02F1/13718G02F1/1347G06F3/0412
Inventor 王富民
Owner TRIPLE POWER LTD