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Method and system for pulse width segmentation of LED drive

A technology of LED driving and pulse width, applied in instruments, static indicators, etc., can solve the problem that LED refresh rate and display realism cannot coexist, and achieve the effect of solving LED refresh rate

Active Publication Date: 2017-12-22
SHENZHEN FM ELECTRONICS GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a LED driving pulse width segmentation method, aiming to solve the problem that the LED refresh rate and display fidelity cannot coexist in the existing LED pulse width cutting method

Method used

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  • Method and system for pulse width segmentation of LED drive
  • Method and system for pulse width segmentation of LED drive

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] The realization of the present invention is described in detail below in conjunction with specific accompanying drawing:

[0028] image 3 The implementation flow of the LED driving pulse width division method provided by an embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0029] In step S1 , the clock period corresponding to one display period of the LED driving pulse corresponding to the grayscale data is evenly divided into a first preset number ...

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Abstract

The invention, which belongs to the field of the LED driving technology, discloses a method and system for pulse width segmentation of an LED drive. A clock period corresponding to one display period of an LED drive pulse corresponding to grayscale data is segmented into a first preset number of display sub periods and each display sub period is divided into a second preset number of display unit periods, wherein each display unit period includes a third preset number of clock pulse numbers; on the basis of the clock pulse number and the grayscale data, the number of the display unit period included by one display period of the LED drive pulse is obtained and the LED drive pulse is distributed in the display sub periods based on the number of the display unit periods. Therefore, while the LED refresh rate is ensured, the authenticity of the grayscale data corresponding to the LED drive pulse is not reduced, so that a problem that the high LED refresh rate and good display authenticity can not be realized simultaneously by the existing LED pulse width segmentation method is solved.

Description

technical field [0001] The invention belongs to the technical field of LED driving, and in particular relates to a method and system for dividing LED driving pulse width. Background technique [0002] In recent years, as the basic light-emitting device of various light-emitting devices, in the field of LED display screens, with the characteristics of high reliability, long service life, strong environmental adaptability, high cost performance, and low cost of use, LEDs have become more and more popular in the past ten years. , has rapidly grown into a mainstream product of flat panel display, and has been widely used in the field of information display. [0003] The brightness of the LED changes according to its duty cycle. When the brightness required by the LED is low, that is, when the duty cycle is low, the system will output a relatively long non-light continuous clock pulse, so that the LED does not light for a long time. Therefore, if the image capture frequency is u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 李科举万伟
Owner SHENZHEN FM ELECTRONICS GRP CO LTD
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