2D regional dimming system and method for LCD spliced screen

A regional dimming and splicing screen technology, applied in the direction of static indicators, instruments, etc., can solve the problems of insufficient contrast of LCD splicing screens, difficulties in meeting high dynamic range screen technical standards, inability to provide dynamic performance and image details, etc., to achieve Improve dimming accuracy, simple structure, and mature system

Pending Publication Date: 2022-01-11
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the LCD splicing screen under this scheme has insufficient contrast, cannot provide more dynamic performance and image details, and is difficult to meet the high dynamic range screen technical standards

Method used

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  • 2D regional dimming system and method for LCD spliced screen
  • 2D regional dimming system and method for LCD spliced screen

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Embodiment Construction

[0032] The present invention is described in further detail below in conjunction with embodiment.

[0033] The embodiment of the present invention discloses a 2D area dimming system and method for an LCD splicing screen, wherein the method includes: using a hood to cover the LCD splicing screen to be tested, placing an RGB camera and a luminance meter inside the hood, Connect the LCD splicing control system, RGB camera, and luminance meter to the main control computer through a gigabit network cable; then, through simple operations on the main control computer, the main control computer will automatically run a series of operations in the S200-S700 Operation; the final output is a large LCD screen with successful calibration and adjustment.

[0034] Such as figure 1 As shown, the 2D regional dimming system for LCD splicing screens provided by the present invention includes a main control computer, an RGB camera connected to the main control computer, a hood, a luminance meter...

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Abstract

The invention discloses a 2D regional dimming system and method for an LCD spliced screen. The 2D regional dimming system comprises a main control computer, and the main control computer is connected with an RGB camera, a luminance meter, a light shield and an LCD spliced control system. The main control computer is used for recognizing and processing the image collected by the RGB camera, recognizing splicing seams in the LCD spliced screen, and segmenting the LCD spliced screen to identify n LCD screens; the RGB camera is used for collecting an overall image of the LCD spliced screen; the light shield is used for placing the RGB camera and the LCD splicing control system, and the light shield shields the LCD splicing screen to be tested; and the LCD splicing control system is used for changing the initial white output of one LCD screen into black output, and collecting images through the RGB camera. According to the system and the method, the backlight of the LCD spliced screen can be adjusted through an algorithm, so that the spliced screen displays a higher contrast ratio, and the high-dynamic illumination rendering display of the LCD spliced screen is improved.

Description

technical field [0001] The invention belongs to the technical field of LCD splicing screen and backlight area adjustment, and in particular relates to a 2D area dimming system and method for an LCD splicing screen. Background technique [0002] The LCD splicing screen is formed by splicing and displaying multiple LCD screens, and the LCD splicing control system controls the split display content of each large screen, expanding the display area. Since the LCD itself does not emit light, it needs to use LEDs to provide backlight. The conventional backlight consists of a string of LEDs on one side of each splicing screen. It is called the global dimming method. This dimming technology has low power consumption and generates less heat. However, the LCD splicing screen under this solution has insufficient contrast, cannot provide more dynamic performance and image details, and is difficult to meet the high dynamic range screen technical standards. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/3413G09G3/342
Inventor 刘骁杨东崔逸群王文庆朱博迪毕玉冰刘超飞邓楠轶董夏昕介银娟刘迪肖力炀崔鑫王艺杰朱召鹏
Owner XIAN THERMAL POWER RES INST CO LTD
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