Title:
表示パネルの駆動装置
Document Type and Number:
Japanese Patent JP4410997
Kind Code:
B2
Abstract:
A display panel drive capable of satisfactory image display with dither patterns suppressed. Display lines of a display panel are each divided into M display line groups including [M · (k-1)+1]th display lines (where M is a natural number, and k is a natural number of n/M or smaller) of the display panel, a display line group including [M · (k-1)+2]th display lines, a display line group including [M · (k-1)+3]th display lines, ..., a display line group including [M · (k-1)+M]th display lines. Then, to each of the display line groups, each different offset value is assigned for addition to pixel data each corresponding to the display line groups, deriving multi-grayscale pixel data. Then, a lighting mode setting or an extinction mode setting is done based on the multi-grayscale pixel data with respect to each of the pixel cells belonging to the display line groups each different in at least M subfields among subfields constituting a field of a video signal. This enables to prevent dither patterns from occurring by varying the luminance levels to be represented by the pixel cells vertically adjacent to one another in a screen.
Inventors:
Hiroshi Honda
Tetsuya Shigeta
Tetsuro Nagakubo
Tetsuya Shigeta
Tetsuro Nagakubo
Application Number:
JP2003042810A
Publication Date:
February 10, 2010
Filing Date:
February 20, 2003
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
G09G3/20; G09G3/28; G09G3/288; G09G3/291; G09G3/292; G09G3/293; G09G3/294; G09G3/298
Domestic Patent References:
| JP2000227778A | ||||
| JP2001154630A | ||||
| JP20026800A | ||||
| JP2002351381A |
Attorney, Agent or Firm:
Fujimura Joint Patent Office