Drive device, non-transitory computer readable medium, process for display medium and display apparatus

Patent metadata

Field	Value
Publication number	US-9697759-B2
Application number	US-201414274981-A
Country	US
Kind code	B2
Filing date	May 12, 2014
Priority date	Oct 8, 2013
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A drive device for a display medium includes a control unit that controls density of a display color of a predetermined range in which glare may likely occur, of display colors of an image displayed on a reflective type display medium, based on brightness information indicating brightness of irradiation beams irradiated on the display medium so that occurrence of the glare as to the display color of the predetermined range can be suppressed.

First claim

What is claimed is:

1. A drive device for a display medium, comprising:
a control unit that controls density of a display color of a predetermined range in which glare may likely occur, of display colors of an image displayed on a reflective type display medium, based on brightness information indicating brightness of irradiation beams irradiated on the display medium so that occurrence of the glare as to the display color of the predetermined range can be suppressed;
wherein the reflective type display medium is an electrophoretic type display medium provided with a pair of substrates, a dispersion medium which is sealed between the pair of substrates, and particle groups which are dispersed in the dispersion medium and sealed between the pair of substrates so as to be able to move between the substrates in accordance an electric field formed between the substrates;
the display medium includes a plurality of particle groups with different colors; and
the control unit displays images of the colors of the plurality of particle groups on at least a predetermined partial region of the display medium and the brightness information indicating the brightness is illuminances of reflected beams detected successively by an illuminance sensor provided for detecting the reflected beams of the irradiation beams irradiated on the region.

2. A drive device for a display medium, comprising:
a control unit that controls density of a display color of a predetermined range in which glare may likely occur, of display colors of an image displayed on a reflective type display medium, based on brightness information indicating brightness of irradiation beams irradiated on the display medium so that occurrence of the glare as to the display color of the predetermined range can be suppressed;
wherein the reflective type display medium is an electrophoretic type display medium provided with a pair of substrates, a dispersion medium which is sealed between the pair of substrates, and particle groups which are dispersed in the dispersion medium and sealed between the pair of substrates so as to be able to move between the substrates in accordance an electric field formed between the substrates;
the display medium includes a plurality of particle groups with different colors; and
the control unit displays images of the colors of the plurality of particle groups in at least a predetermined partial region of the display medium and the brightness information indicating the brightness is illuminances of a plurality of reflected beams detected respectively by illuminance sensors having spectral sensitivity respectively for the colors of the plurality of particle groups, of reflected beams of the irradiation beams irradiated on the region.

Assignees

• Fuji Xerox Co Ltd

Inventors

• Yamashita Takamaro
• Kobayashi Hideo
• Ishii Tsutomu
• Furuya Masami

Classifications

• G09G2320/0673

  for control of gamma adjustment, e.g. selecting another gamma curve · CPC title

• G09G2300/0473

  Use of light emitting or modulating elements having two or more stable states when no power is applied · CPC title

• G09G2360/145

  the light originating from the display screen · CPC title

• G09G2320/0666

  for control of colour parameters, e.g. colour temperature · CPC title

• G09G3/2003 Primary

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title