Method and device for determining compensation grayscale value of display panel, and display device

A method for determining a compensation grayscale value of a display panel, comprising:

• searching, in a table of grayscale bit number judgment values, for a grayscale bit number judgment value corresponding to a sub-pixel to be compensated;
• determining a compensation grayscale value corresponding to the sub-pixel to be compensated by a first reading process if the grayscale bit number judgment value satisfies a grayscale bit number condition;
• and
• determining the compensation grayscale value corresponding to the sub-pixel to be compensated by a second reading process if the grayscale bit number judgment value does not satisfy the grayscale bit number condition,
• wherein the first reading process comprises:
• searching, in a table of first compensation grayscale values, for a first grayscale value position corresponding to the sub-pixel to be compensated, and determining the compensation grayscale value corresponding to the sub-pixel to be compensated in accordance with data at the first grayscale value position, and
• wherein the second reading process comprises:
• searching, in the table of first compensation grayscale values, for the first grayscale value position corresponding to the sub-pixel to be compensated;
• searching, in a table of second compensation grayscale values, for a second grayscale value position corresponding to the sub-pixel to be compensated;
• and determining the compensation grayscale value corresponding to the sub-pixel to be compensated in accordance with the data at the first grayscale value position and data at the second grayscale value position;
• wherein the number of bits of the data at the first grayscale value position is 4, and the number of bits of the data at the second grayscale value position is 2, and
• said determining the compensation grayscale value corresponding to the sub-pixel to be compensated in accordance with data at the first grayscale value position and data at the second grayscale value position comprises:
• obtaining data on the compensation grayscale value corresponding to the sub-pixel to be compensated, the data at the first grayscale value position being highest 4bits of the data on the compensation grayscale value, and the data at the second grayscale value position being lowest 2bits of the data on the compensation grayscale value.

A display device, comprising:

• a memory configured to store information comprising program instructions;
• and
• a processor configured to control execution of the program instructions,
• wherein the program instructions are loaded and executed by the processor to implement the method for determining the compensation grayscale value of the display panel, comprising:
• searching, in a table of grayscale bit number judgment values, for a grayscale bit number judgment value corresponding to a sub-pixel to be compensated, wherein the grayscale bit number judgment value is used to indicate whether the binary grayscale bit number corresponding to the sub-pixel is greater than a value;
• determining a compensation grayscale value corresponding to the sub-pixel to be compensated by a first reading process if the grayscale bit number judgment value satisfies a grayscale bit number condition;
• and
• determining the compensation grayscale value corresponding to the sub-pixel to be compensated by a second reading process if the grayscale bit number judgment value does not satisfy the grayscale bit number condition,
• wherein the first reading process comprises:
• searching, in a table of first compensation grayscale values, for a first grayscale value position corresponding to the sub-pixel to be compensated, and determining the compensation grayscale value corresponding to the sub-pixel to be compensated in accordance with data at the first grayscale value position, and
• wherein the second reading process comprises:
• searching, in the table of first compensation grayscale values, for the first grayscale value position corresponding to the sub-pixel to be compensated;
• searching, in a table of second compensation grayscale values, for a second grayscale value position corresponding to the sub-pixel to be compensated;
• and determining the compensation grayscale value corresponding to the sub-pixel to be compensated in accordance with the data at the first grayscale value position and data at the second grayscale value position.