Invention Grant
- Patent Title: Electrophoretic display
-
Application No.: US13139101Application Date: 2009-12-09
-
Publication No.: US09183792B2Publication Date: 2015-11-10
- Inventor: Alex Henzen , Daniel Wiermans , Patrick Janssen
- Applicant: Alex Henzen , Daniel Wiermans , Patrick Janssen
- Applicant Address: NL Rotterdam
- Assignee: HJ FOREVER PATENTS B.V.
- Current Assignee: HJ FOREVER PATENTS B.V.
- Current Assignee Address: NL Rotterdam
- Agency: Nixon & Vanderhye P.C.
- Priority: EP08171366 20081211
- International Application: PCT/EP2009/066761 WO 20091209
- International Announcement: WO2010/066806 WO 20100617
- Main IPC: G09G3/34
- IPC: G09G3/34

Abstract:
A display apparatus comprises pixels (18) associated with intersections of select electrodes (17) and data electrodes (11) and having a bistable operation. A select driver (16) supplies select voltages (VG) to the select electrodes (17) to select a group of pixels (18). A data driver (10) supplies data voltages (VD) to the data electrodes (11) to supply the data voltages (VD) to the group of pixels (18) being selected. A common driver (25) supplies a backplane voltage (VB) to a common electrode (6) common for the group of pixels (18). A controller (15) controls the select driver (16), the data driver (10) and the common driver (25), in the order mentioned: (a) to change the select voltage (VG) to its on-level (on) at which the group of pixels (18) are selected, after the backplane voltage (VB) and the data voltage (VD) for the group of pixels (18) have a same first non-zero level (+15V), or before the backplane voltage (VB) and the data voltage (VD) for the group of pixels (18) are simultaneously changed to the same first non-zero level (+15V), (b) to change the data voltages (VD) in accordance with display data (13) defining an optical state of the individual pixels (18) of the group of pixels (18), (c) to change the select voltage (VG) to its off-level (off) at which the group of pixels (18) are not selected, (d) to change the select voltage (VG) to its on-level (on), after the backplane voltage (VB) and the data voltage (VD) for the group of pixels (18) have a same second non-zero level (−15V), or before the backplane voltage (VB) and the data voltage (VD) for the group of pixels (18) are simultaneously changed to the same second non-zero level (−15V), and (e) to change the data voltages (VD) in accordance with the display data (13).
Public/Granted literature
- US20110298838A1 ELECTROPHORETIC DISPLAY Public/Granted day:2011-12-08
Information query
IPC分类: