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LED display drive control method and device

An LED array and sub-control technology, applied in static indicators, instruments, etc., can solve the problem of poor display effect on the display screen, and achieve the effect of improving grayscale uniformity, avoiding current fluctuation, and improving display effect.

Inactive Publication Date: 2021-07-02
TCL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present application provides an LED display driving control method and device to solve the problem that the display effect of the display screen is not good under the control of the existing display control method of the display screen.

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  • LED display drive control method and device

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Embodiment Construction

[0061] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0062] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other features. , whole, step, operation, element, component and / or the presence or addition of a collection thereof.

[0063] It shou...

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Abstract

The invention is suitable for the technical field of display screen driving, and provides an LED display driving control method and device, and the control method comprises the steps: determining a driving mode of each LED in an LED array based on the brightness data of a current frame, and obtaining first driving data and second driving data; inputting the first driving data into the LED array to drive the LED array for the first time; and inputting the second driving data into the LED array to drive the LED array for the second time, wherein the first driving mode and the second driving mode each correspond to one of a PAM driving mode and a PWM driving mode. According to the technical scheme of the invention, PAM and PWM joint driving is achieved, reliable display of the LED array can be realized when the LED array is in a high gray scale or a low gray scale, and the gray scale uniformity of the LED array can be effectively improved, so that accurate gray scale control can be realized, and the display effect of the LED array is improved.

Description

technical field [0001] The present application belongs to the technical field of display screen drive, and in particular relates to a LED display drive control method and device. Background technique [0002] At present, LED display screens are widely used due to their advantages such as small spacing, high splicability, high brightness, long display life, and good viewing angle. However, compared with other display technologies, such as liquid crystal, OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode), etc., LED display still has room for improvement in terms of resolution and gray scale uniformity. [0003] The display control method of the existing LED display is usually a PWM (Pulse Width Modulation, pulse width modulation) drive control method, but the PWM drive control method will cause the current of the LED display to appear certain when the LED display is displayed in a high gray scale. Fluctuations, the displayed gray scale is deviated, resulting i...

Claims

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Application Information

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IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 蔡胜强林智远谢相伟颜青青
Owner TCL CORPORATION
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