Invention Grant
- Patent Title: Cholesteric liquid crystal writing tablet with spacer controlled sensitivity
- Patent Title (中): 胆固醇液晶书写片具有间隔控制灵敏度
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Application No.: US13281911Application Date: 2011-10-26
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Publication No.: US08947604B2Publication Date: 2015-02-03
- Inventor: Oleg Pishnyak
- Applicant: Oleg Pishnyak
- Applicant Address: US OH Kent
- Assignee: Kent Displays Incorporated
- Current Assignee: Kent Displays Incorporated
- Current Assignee Address: US OH Kent
- Agency: Pearne & Gordon LLP
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02F1/1339 ; C09K19/02 ; G06F3/033 ; G02F1/1333 ; G02F1/137

Abstract:
A cholesteric liquid crystal writing tablet includes a first substrate that is transparent and flexible on which a writing pressure is applied and a second substrate spaced apart from the first substrate. One electrically conductive layer is in contact with the first substrate and is transparent and another of the electrically conductive layers is in contact with the second substrate. The electrically conductive layers are separated from each other by a cell gap. Cholesteric liquid crystal material is disposed between the electrically conductive layers. Spacers are disposed in the liquid crystal material that control the cell gap. The spacers have a size and concentration in the liquid crystal material that restricts flow of the liquid crystal material when the cell gap is reduced upon application of the writing pressure.
Public/Granted literature
- US20120099030A1 CHOLESTERIC LIQUID CRYSTAL WRITING TABLET WITH SPACER CONTROLLED SENSITIVITY Public/Granted day:2012-04-26
Information query
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