Control circuit, display substrate, display device and display method

Abstract

The invention provides a control circuit, a display substrate, a display device and a display method. The control circuit includes: a storage module for storing the feedthrough error voltage value corresponding to each gray scale of the sub-pixel; a calculation module for receiving the original gray scale voltage input value and its corresponding gray scale, and according to the gray scale Find the corresponding feed-through error voltage value in the storage module, and output the sum of the original gray-scale voltage input value and the corresponding feed-through error voltage value as the actual gray-scale voltage input value to the source driving circuit. Based on the control circuit, the feedthrough error voltage at each gray scale can be offset to avoid distortion of the display effect.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a control circuit, a display substrate, a source driver chip, a display device and a display method. Background technique [0002] In the sub-pixels of the display panel, due to the parasitic capacitance of the transistors in the sub-pixels, this leads to a feed-through error voltage, thereby causing display distortion. [0003] join figure 1 A conventional liquid crystal display substrate is shown, including a plurality of sub-pixels. Each sub-pixel corresponds to a transistor M1-MN. The gate of each transistor M1-MN receives the gate drive voltage VGH, the source receives the source drive voltage (or data voltage) VS1-VSN, the drain is connected to the storage capacitor CS and the liquid crystal capacitor CLC, all the storage capacitor CS and the liquid crystal capacitor The other ends of the CLCs are both connected to the common voltage VCOM. Transistors ...

AI Technical Summary

Problems solved by technology

However, due to the existence of the feedthrough error voltage ΔV, the actual effective source driving voltage in the sub-pixel will change after the gate driving voltage VGH becomes invalid, which will cause the actual brightness of the sub-pixel to change, resulting in display distortion

[0008] There is no effective compensation scheme for the feedthrough error voltage in the prior art

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