LED array driving method, display array driving device and terminal equipment

A LED array and display array technology, applied in static indicators, instruments, etc., can solve the problem of low gray scale accuracy, achieve the effect of improving gray scale accuracy, overcoming the slow response time of the system, and ensuring the response frequency of the power supply

Active Publication Date: 2022-07-05
TCL CORPORATION
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Problems solved by technology

[0003] In view of this, the embodiment of the present application provides an LED array driving method, a display array driving device and a terminal device, so as to solve the problem of low grayscale accuracy of the existing LED array driving

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  • LED array driving method, display array driving device and terminal equipment
  • LED array driving method, display array driving device and terminal equipment
  • LED array driving method, display array driving device and terminal equipment

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Embodiment Construction

[0036] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those 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.

[0037] It is to be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described feature, integer, step, operation, element and / or component, but does not exclude one or more other features , whole, step, operation, element, component and / or the presence or addition of a collection thereof.

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Abstract

The present application is applicable to the field of LED driving technology, and provides an LED array driving method, a display array driving device and terminal equipment, wherein the LED array driving method includes: respectively inputting row scanning signals and column data signals to the LED array for addressing; If the current number of consecutive addressing reaches the threshold, the addressing is stopped, and the LED array is input with a working voltage to light up the LED array; when the duration of inputting the working voltage to the LED array reaches the point corresponding to the continuous addressing When the sum of the on-time durations is reached, the input of the operating voltage to the LED array is stopped. In this embodiment of the present application, the addressing operation is performed on at least one subfield, the backlight is not turned on during the addressing time of each subfield, and the backlight is turned on only during the non-addressing time of each subfield, so that there is enough time for the entire array. Addressing is performed so that the lighting of the backlight can be performed normally, and the modulation efficiency is improved.

Description

technical field [0001] The present application belongs to the technical field of LED driving, and in particular, relates to an LED array driving method, a display array driving device and terminal equipment. Background technique [0002] The display object in the display system is usually a display array, which is formed by splicing multiple display sub-arrays, each display sub-array is composed of a large number of display modules, and each display module includes LEDs and their control circuits. In the existing control method of the display system, if there is not enough time to address the entire array, an error occurs in the control logic, thereby affecting the subsequent lighting process, resulting in low grayscale accuracy. SUMMARY OF THE INVENTION [0003] In view of this, embodiments of the present application provide an LED array driving method, a display array driving device, and a terminal device, so as to solve the problem of low grayscale accuracy of the exist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 林智远颜青青谢相伟蔡胜强
Owner TCL CORPORATION
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