Invention Grant
- Patent Title: Transition between grayscale and monochrome addressing of an electrophoretic display
- Patent Title (中): 电泳显示器的灰度和单色寻址之间的转换
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Application No.: US10598204Application Date: 2005-02-24
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Publication No.: US07800580B2Publication Date: 2010-09-21
- Inventor: Mark Thomas Johnson , Guofu Zhou , Johannes Petrus Van De Kamer
- Applicant: Mark Thomas Johnson , Guofu Zhou , Johannes Petrus Van De Kamer
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP04100803 20040301
- International Application: PCT/IB2005/050671 WO 20050224
- International Announcement: WO2005/088603 WO 20050922
- Main IPC: G09G3/34
- IPC: G09G3/34 ; G09G5/10 ; G02B26/00

Abstract:
An electrophoretic display that is switchable between a grayscale updating mode and a monochrome updating mode. The monochrome updating mode provides for extreme pixel states only including black and white, whereas the grayscale updating mode provides for an intermediate grayscale pixel state. A suitably selected transition signal is applied when switching from the grayscale updating mode to the monochrome updating mode. The transition signal involves a drive pulse that serves to reduce the level of remnant DC voltage otherwise occurring in each pixel due to differences in the grayscale updating mode and the monochrome updating mode.
Public/Granted literature
- US20070146306A1 Transition between grayscale an dmonochrome addressing of an electrophoretic display Public/Granted day:2007-06-28
Information query
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