Title:
OPTICAL DISPLAY DRIVING METHOD
Document Type and Number:
WIPO Patent Application WO2004059398
Kind Code:
A3
Abstract:
A display device comprising a plurality of pixels (26), a light source (23), and addressing means (24, 25) for coupling a selected pixel to said light source to thereby emit light, wherein the addressing means (24, 25) are arranged to address each pixel using pulse-width modulation (PWM). Further, the display comprises means (20) for amplitude modulating the intensity of said light source (23). The combination of the two modulations generates an exponentially distributed emitted light intensity, enabling proper gray scale rendering for a limited resolution in the time domain.
Inventors:
DE ZWART SIEBE T (NL)
SCHOELLMANN VOLKER (NL)
DUINE PETER A (NL)
LANGE RUEDIGER J (NL)
WILLEMSEN OSCAR H (NL)
VAN WOUDENBERG ROEL (NL)
HOPPENBROUWERS JURGEN J L (NL)
MARRA JOHANNES (NL)
SCHOELLMANN VOLKER (NL)
DUINE PETER A (NL)
LANGE RUEDIGER J (NL)
WILLEMSEN OSCAR H (NL)
VAN WOUDENBERG ROEL (NL)
HOPPENBROUWERS JURGEN J L (NL)
MARRA JOHANNES (NL)
Application Number:
PCT/IB2003/005820
Publication Date:
September 02, 2004
Filing Date:
December 05, 2003
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
DE ZWART SIEBE T (NL)
SCHOELLMANN VOLKER (NL)
DUINE PETER A (NL)
LANGE RUEDIGER J (NL)
WILLEMSEN OSCAR H (NL)
VAN WOUDENBERG ROEL (NL)
HOPPENBROUWERS JURGEN J L (NL)
MARRA JOHANNES (NL)
DE ZWART SIEBE T (NL)
SCHOELLMANN VOLKER (NL)
DUINE PETER A (NL)
LANGE RUEDIGER J (NL)
WILLEMSEN OSCAR H (NL)
VAN WOUDENBERG ROEL (NL)
HOPPENBROUWERS JURGEN J L (NL)
MARRA JOHANNES (NL)
International Classes:
G04G3/00; G09G3/00; G09G3/34; G09G3/20; (IPC1-7): G09G3/34
Domestic Patent References:
| WO2002056288A1 | 2002-07-18 |
Foreign References:
| US6232963B1 | 2001-05-15 | |||
| US5311206A | 1994-05-10 |
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