Optimization method and pre-stage device for brightness compensation
View Patent ↗An optimization method and a pre-stage device for brightness compensation, includes: providing a brightness obtaining apparatus; photographing a to-be-compensated panel to obtain a brightness compensation reference frame, where the to-be-compensated panel has first pixel units, the brightness obtaining apparatus has second pixel units, the brightness compensation reference frame includes photographing units, and the photographing unit includes second pixel units, where the second pixel unit is bigger than the first pixel unit; using four second pixel units at four endpoints of each of the photographing units as brightness references, and obtaining pieces of brightness compensation data of the other second pixel units in the photographing unit by using a specific operation mode; and performing brightness compensation for the first pixel units corresponding to each of the photographing units by using the pieces of brightness compensation data.
1. An optimization method for brightness compensation, comprising:
providing a brightness obtaining apparatus;
photographing, by the brightness obtaining apparatus, a to-be-compensated panel to obtain a brightness compensation reference frame, wherein the to-be-compensated panel has a first resolution, the first resolution is defined by a plurality of first pixel units of a two-dimensional array, the brightness obtaining apparatus has a second resolution, the second resolution is defined by a plurality of second pixel units of a two-dimensional array, the brightness compensation reference frame comprises a plurality of photographing units, and the photographing unit comprises a plurality of second pixel units, wherein the second pixel unit is bigger than the first pixel unit;
using four second pixel units at four endpoints of each of the photographing units as brightness references, and obtaining a plurality of pieces of brightness compensation data of the other second pixel units in the photographing unit by using a specific operation mode; and
performing brightness compensation for the first pixel units corresponding to each of the photographing units by using the pieces of brightness compensation data;
wherein side lengths of the second pixel unit are respectively two times side lengths of the first pixel unit;
wherein a quantity of second pixel units defining the second resolution is ¼ of a quantity of first pixel units defining the first resolution;
wherein the specific operation mode is a gamma 2.2 curve.
2. The optimization method for brightness compensation according to claim 1 , wherein the brightness obtaining apparatus is a capacitive coupling component camera.
3. The optimization method for brightness compensation according to claim 1 , wherein the first resolution is an ultrahigh resolution defined by first pixel units arranged in a 3840*2160 array.
4. The optimization method for brightness compensation according to claim 1 , wherein the pieces of brightness compensation data perform positive-direction brightness compensation for the first pixel units corresponding to each of the photographing units.
5. The optimization method for brightness compensation according to claim 1 , wherein the pieces of brightness compensation data perform negative-direction brightness compensation for the first pixel units corresponding to each of the photographing units.