Method, device and system for displaying images through regional dimming

A technology for displaying images and regional dimming, applied to static indicators, instruments, etc., can solve problems such as light leakage and poor image quality, and achieve the effects of improving display quality, increasing clarity, and eliminating smearing

Active Publication Date: 2012-08-29
BOE TECH GRP CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a method, device and system for displaying images with regional dimming, which are used to solve the problems of light leakage and poor image quality in the prior art when displaying images with regional dimming liquid crystal displays

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  • Method, device and system for displaying images through regional dimming
  • Method, device and system for displaying images through regional dimming
  • Method, device and system for displaying images through regional dimming

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the method, device and system for displaying images with local dimming provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0039] figure 1 It is a flow chart of the first embodiment of the method for displaying images with local dimming according to the present invention. Such as figure 1 As shown, the flow of the method for displaying images by local dimming in this embodiment specifically includes the following steps:

[0040] Step 101. Receive an image signal of a frame of image.

[0041] In this embodiment, the technical solution is introduced by taking the liquid crystal display adopting the local dimming technology as an example. The liquid crystal display is divided into M×N in matrix form. For example, a 70-inch liquid crystal display can be divided into 16×12 image units. When a frame...

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Abstract

The invention provides a method, a device and a system for displaying images through regional dimming, wherein the method comprises the steps of: receiving image signals of a frame image; analyzing the image signals so as to obtain backlight control signals corresponding to a black insertion region and a bright light region of the image; and controlling a backlight source to output bright light to the bright light region and to carry out black insertion on the black insertion region for displaying the image according to the backlight control signals. In the embodiment provided by the invention, through obtaining the black insertion region on the periphery of the bright light region and the bright light region of the image, the bright light is output to the bright light region of the image, the black insertion is carried out the black insertion region on the periphery of the bright light region, the light leakage from the bright light region to a peripheral non-bright-light region is avoided, the image trailing phenomenon during image display is reduced or eliminated, the image definition is enhanced, and the image display quality is improved.

Description

technical field [0001] The present invention relates to the technical field of display, in particular, to a method, device and system for displaying images with local dimming. Background technique [0002] Liquid crystal displays have the advantages of light weight, low radiation, and portability, so they are widely used as displays for terminals such as televisions and computers. [0003] In the prior art, in order to reduce the energy consumption of the backlight source in the liquid crystal display and improve the image quality of the liquid crystal display, people have developed a local dimming (Local Dimming) technology. The formula is divided into several image units, and then the average brightness of each image unit in the displayed image is calculated to independently control the brightness of each image unit and improve the contrast of the image screen. [0004] However, when a liquid crystal display adopting regional dimming technology displays an image, since th...

Claims

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Application Information

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IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/34G09G3/36G09G3/3426G09G2320/0238G09G2320/0646G09G2360/16
Inventor 周珊珊田正牧
Owner BOE TECH GRP CO LTD
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