Image display method and display apparatus

A display device and image display technology, applied to static indicators, color signal processing circuits, instruments, etc., can solve problems such as picture freezing and flickering, and achieve the effect of solving picture freezing and flickering

Inactive Publication Date: 2017-05-10
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides an image display method, which is used to solve the problem of image freeze and flicker in the display device in the prior art when displaying images

Method used

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  • Image display method and display apparatus

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Embodiment Construction

[0042] As mentioned in the background, for the existing display device, its image display parameters have been set before leaving the factory, and the display parameters are generally not adjusted. Therefore, when the display device receives an image signal that does not match itself, it will not be able to output a normal image, and there will be a phenomenon of picture freezing or flickering. In a display device, there are different reasons for image freezing and flickering.

[0043] When a display device receives an input image signal, it needs to convert it into an output image signal to drive image display. In the process of image display, the frequency of the output image signal needs to be consistent with the refresh frequency of the display device. Therefore, when the frequency of the input image signal is different from the refresh frequency of the display device, the frame number (frequency) of the output image signal generated by the display device will be differen...

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Abstract

The embodiments of the invention provide an image display method. When an input image signal is received, the display apparatus firstly adjusts its own refreshing frequency as the frequency for the input image signal and generates a synchronized field synchronization signal while generating an output image signal. Then, the display apparatus uses the ascending edge of the field synchronization signal as a triggering edge to output a backlight drive signal so that the backlight illumination of the display apparatus is synchronized with the image display of the display apparatus. Since the refreshing frequency of the display apparatus is identical to the frequency of the input image signal, the frequency of the output image signal of the display apparatus is supposed to be also identical to the frequency of the input image signal. Therefore, in the process of displaying an image, the image could be displayed continuously. Further, as the backlight illumination of the display apparatus is synchronized with the image display, the flashing of image does not occur in the process of displaying the image.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an image display method. The present application also relates to a display device. Background technique [0002] Display device, a device that displays information output by a computer or an image signal output device, also known as a display, is a human-machine interface device. It can transform the signal input by computer or image signal output device into various characters, numbers, symbols or intuitive images and display them. [0003] For the existing display device, its image display parameters have been set before leaving the factory, and generally they will not be changed. Therefore, the display device can only perform normal image output on the image signal adapted to itself. For this reason, the computer or image signal output equipment needs to communicate with the display device, and after obtaining the EDID (Extended Display Identification Data) information of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34H04N9/64
CPCG09G3/3406H04N9/64G09G2340/0435G09G2320/062G09G2320/0646G09G2310/08
Inventor 骆俊谕刘明涛洪胜峰乔明胜
Owner HISENSE VISUAL TECH CO LTD
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