发明名称 |
Display apparatus and method for gamma correction |
摘要 |
Image data of the respective colors are converted, by look-up tables in which gamma correction data are stored, into gradation data that are white-balanced with intervention of the V-T characteristics of liquid crystal panels. The generated gradation data are supplied to D/A converters and the liquid crystal panels via liquid crystal driving circuits. Gamma correction data within dynamic ranges that are set for each display apparatus by measuring a luminance ratio and contrast ratios of the respective colors are written to the look-up tables in advance. As a result, all they correction data stored in the look-up tables can be used effectively. The invention is directed to such a method for generating data of look-up tables and an image display apparatus that performs gradation correction by using thus-formed look-up tables.
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申请公布号 |
US2001015774(A1) |
申请公布日期 |
2001.08.23 |
申请号 |
US20010784514 |
申请日期 |
2001.02.15 |
申请人 |
ENDO HIROAKI;KIKUCHI TETSUJI;SHIROCHI YOSHIKI |
发明人 |
ENDO HIROAKI;KIKUCHI TETSUJI;SHIROCHI YOSHIKI |
分类号 |
H04N5/66;H04N5/202;H04N9/69;H04N9/73;(IPC1-7):H04N9/64;H04N9/28 |
主分类号 |
H04N5/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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