Driving load compensation unit, method and module and display device

Abstract

The invention provides a driving load compensation unit, method and module and a display device. The driving load compensation unit includes a load compensation control subunit and a resistance-capacitance (RC) load subunit. The RC load subunit includes N switch modules and N RC load modules, where N is an integer greater than 1. A first end of the n-th switch module is connected with a first endof the n-1-th RC load module, and a second end of the n-th switch module is connected with a second end of the n-th RC load module, where n is an integer greater than 1 and less than or equal to N. The load compensation control subunit generates a first load compensation control signal and an n-th load compensation control signal. The n-th switch module is used for controlling the on or off of theconnection between the first end of the n-th switch module and the second end of the n-th switch module under the control of the n-th load compensation control signal. According to the invention, theproblem of difference in luminance resulting from uneven pixel driving currents in main and sub display areas is solved.

Description

technical field [0001] The invention relates to the technical field of display driving, in particular to a driving load compensation unit, method, module and display device. Background technique [0002] Figure 1A It is a schematic diagram of a display panel in a full-screen borderless form. The display panel is as follows: a main display area 101 for conventional display; a first sub-display area 102 for special display; a second sub-display area 103 for special display; And, avoid the non-display area 104 of the mobile phone camera and the earpiece. In order to avoid the camera and earpiece of the mobile phone, there will be a grooved area with a certain depth and width on the top of the display panel, which divides the top display area into two sub-display areas. Since the number of sub-pixel units per row in each sub-display area is less than the number of sub-pixel units per row in the main display area, the load of the main gate drive unit corresponding to the main d...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a driving load compensation unit, method, module and display device, which can solve the problem of the main and auxiliary display areas caused by inconsistent charging time when each sub-pixel unit is given the same gray scale voltage in the prior art. The pixel drive current is not uniform, resulting in the problem of brightness differences

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