Title:
階調補正データ作成装置、階調補正装置、電子機器および階調補正データ作成方法
Document Type and Number:
Japanese Patent JP7068905
Kind Code:
B2
Abstract:
The driver calculates a white gamma curve based on a deviation of a tone (including a maximum tone) of white displayed on a liquid crystal display panel (LCD panel) with respect to a target tone value and on a measured gamma value at arbitrary tones excluding a maximum tone in a white gamma characteristic of the LCD panel. The driver calculates three primary gamma curves by applying, to the white gamma curve, a relation obtained by comparing a gamma curve of white of a reference display panel with gamma curves of respective red, green, and blue. The driver corrects a white balance of display data based on the three primary gamma curves and expected output values of respective three primary colors calculated based on highest tone values of three primary colors of the reference display panel and of white of the LCD panel.
Inventors:
Takuya Matsuishi
Application Number:
JP2018077776A
Publication Date:
May 17, 2022
Filing Date:
April 13, 2018
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H04N9/73; G09G3/20; G09G3/36; G09G5/00; G09G5/02
Domestic Patent References:
| JP2009503609A | ||||
| JP2008166892A | ||||
| JP2008158215A |
Attorney, Agent or Firm:
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK
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