Method and apparatus for adjusting brightness of display

A method for adjusting a brightness of a display, comprising:

• acquiring a gray scale number for displaying and a working frequency for displaying of a display screen;
• determining a first gray scale compensation value of a preset calibration area of the display screen using a preset gray scale compensation mapping table according to the to-be-displayed gray scale number and the working frequency, wherein gray scale numbers and gray scale compensation values of the preset calibration area at working frequency nodes in the preset gray scale compensation mapping table are in a one-to-one correspondence;
• determining a second gray scale compensation value of a first type of non-preset calibration area located between two preset calibration areas of the display screen according to first gray scale compensation values of the two preset calibration areas adjacent to the first type of non-preset calibration area;
• determining a second gray scale compensation value of a second type of non-preset calibration area sharing end points with four different preset calibration areas of the display screen according to first gray scale compensation values of the four different preset calibration areas respectively;
• controlling, according to the first gray scale compensation value of the preset calibration area, the preset calibration area to reach a preset brightness for displaying;
• controlling, according to the second gray scale compensation value of the first type of non-preset calibration area, the first type of non-preset calibration area to reach the preset brightness for displaying;
• and
• controlling, according to the second gray scale compensation value of the second type of non-preset calibration area, the second type of non-preset calibration area to reach the preset brightness for displaying;
• wherein each preset calibration area is set as one pixel unit, and pixel points in one preset calibration area correspond to one first gray scale compensation value.

An apparatus for adjusting a brightness of a display, comprising:

• an information acquisition module configured to acquire a gray scale number for displaying and a working frequency for displaying of a display screen;
• a compensation value analysis module communicatively connected to the information acquisition module and configured to:
• determine a first gray scale compensation value of a preset calibration area of the display screen according to the gray scale number for displaying and the working frequency using a preset gray scale compensation mapping table, wherein gray scale numbers and gray scale compensation values of the preset calibration area at working frequency nodes in the preset gray scale compensation mapping table are in a one-to-one correspondence,
• determine a second gray scale compensation value of a first type of non-preset calibration area located between two preset calibration areas of the display screen according to first gray scale compensation values of the two preset calibration areas adjacent to the first type of non-preset calibration area, and
• determine a second gray scale compensation value of a second type of non-preset calibration area sharing end points with four different preset calibration areas of the display screen according to first gray scale compensation values of the four different preset calibration areas respectively;
• and
• a pixel display module communicatively connected to the compensation value analysis module and configured to:
• control, according to the first gray scale compensation value of the preset calibration area, the preset calibration area to display,
• control, according to the second gray scale compensation value of the first type of non-preset calibration area, the first type of non-preset calibration area to display, and
• control, according to the second gray scale compensation value of the second type of non-preset calibration area, the second type of non-preset calibration area to display;
• wherein each preset calibration area is set as one pixel unit, and pixel points in one preset calibration area correspond to one first gray scale compensation value.