Gamma voltage compensation circuit and compensation method, source driver and display panel
A technology of gamma voltage and compensation circuit, applied in instruments, static indicators, etc., can solve problems such as difference in gate voltage of driving transistors, affecting the display quality of display panels, etc.
Active Publication Date: 2020-03-31
BOE TECH GRP CO LTD
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Problems solved by technology
Due to the leakage of the data storage capacitor, there are differences in the gate voltages of the driving transistors in different pixel rows, which affects the display quality of the display panel
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[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure.
[0041] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are o...
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A gamma voltage compensation circuit, a gamma voltage compensation method, a source driver and a display panel. The gamma voltage compensation circuit includes: a generation circuit configured to generate a plurality of voltage compensation amounts, wherein the plurality of voltage compensation amounts correspond to a plurality of reference gray scale levels one-to-one; a calculation circuit electrically connected to the generation circuit connected, configured to acquire the multiple voltage compensation quantities and multiple reference gamma voltages, and obtain multiple reference voltage signals according to the multiple reference gamma voltages and the multiple voltage compensation quantities, wherein the A plurality of reference gamma voltages also correspond one-to-one to the plurality of reference gray scale levels; a gamma circuit, electrically connected to the calculation circuit, is configured to generate a plurality of reference voltage signals corresponding to the display panel according to the plurality of reference voltage signals. A plurality of compensation voltage signals corresponding to one-to-one gray scale levels.
Description
technical field [0001] Embodiments of the present disclosure relate to a gamma voltage compensation circuit, a gamma voltage compensation method, a source driver and a display panel. Background technique [0002] Generally, the scanning mode of the display panel may include interlaced scanning (Interlaced) and progressive scanning (Progressive). Progressive scanning has the advantages of clear and flicker-free pictures, less dynamic distortion, and more stable pictures. Therefore, most display panels currently use progressive scanning. The display panel scans in a row-by-row manner, and the pixel driving circuit of the display panel scans the pixels row by row, so that the data signals are stored in the data storage capacitor row by row. Due to the leakage of the data storage capacitor, there are differences in the gate voltages of the driving transistors in different pixel rows, which affects the display quality of the display panel. Contents of the invention [0003] A...
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IPC IPC(8): G09G3/3258G09G3/3266
CPCG09G3/3258G09G3/3266G09G2320/0673G09G3/3233G09G3/3291G09G2300/0819G09G2300/0852G09G2310/066G09G2320/0233G09G2330/028G09G2300/0861G09G2300/0847G09G2320/0247
Inventor 殷新社
Owner BOE TECH GRP CO LTD