Patent ID: 11862118
Assignee: SHARP NEC DISPLAY SOLUTIONS, LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The display data processing device according to claim 2,
wherein the first gamma correction unit obtains the first normalized brightness value corresponding to the first input gradation value in the first gamma characteristic, obtains the power root corresponding to the first normalized brightness value in the first power function, includes a first correction lookup table generated as a correspondence relationship between the first input gradation value and the first corrected gradation value that is the power root, and outputs the first corrected gradation value with reference to the first correction lookup table when the first input gradation value is input, and
the second gamma correction unit obtains a power value of the second power function when the video gain corrected gradation value is set to a power root, sets the power value as the second normalized brightness value in the second gamma characteristic, includes a second correction lookup table generated as a correspondence relationship between the video gain corrected gradation value and the second normalized brightness value, and outputs the second corrected gradation value with reference to the second correction lookup table when the video gain corrected gradation value is input.