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Backlight brightness adjustment method of backlight board

A technology of backlight brightness and adjustment method, applied to instruments, static indicators, etc., can solve the problems of brightness difference, uneven brightness and darkness of the backlight surface, and inability to guarantee consistency, so as to achieve uniform brightness and solve the effect of uneven brightness.

Inactive Publication Date: 2019-04-16
HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of lamp boards used in the Mini-LED backlight, the brightness bin (binary) and voltage bin of the Mini-LED used by different lamp boards cannot guarantee complete consistency. uneven brightness

Method used

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  • Backlight brightness adjustment method of backlight board
  • Backlight brightness adjustment method of backlight board
  • Backlight brightness adjustment method of backlight board

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Embodiment Construction

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

[0031] see figure 1 , figure 2 As shown, in one embodiment of the present invention, a method for adjusting backlight brightness of a backlight panel is prov...

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Abstract

The embodiment of the invention discloses a backlight brightness adjustment method of a backlight board. The backlight board includes a plurality of lamp boards. Backlight brightness of each lamp board is adjusted through separately controlling a current value. The backlight brightness of each lamp board can be known. The method is characterized by comprising the steps of: dividing the lamp boardsof the backlight board into a plurality of backlight regions according to an MxN region division manner, wherein M is an integer greater than or equal to 2, N is an integer greater than or equal to 1, each backlight region takes a lamp board in the region as a reference light panel, and takes the other lamp boards as peripheral lamp boards; and carrying out brightness uniformity adjustment on theperipheral lamp boards according to backlight brightness of the reference lamp board. Each backlight region includes a plurality of lamp boards through dividing the backlight board into the pluralityof backlight regions, the brightness of the different lamp boards is enabled to be more uniform after lighting through adjusting backlight brightness of all the lamp boards of the divided backlight regions, thus brightness and darkness in a backlight surface of the backlight board are enabled to be uniform, and the problem of uneven brightness is effectively solved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a method for adjusting the brightness of a backlight of a backlight plate. Background technique [0002] Mini-LED, also known as submillimeter light-emitting diode or surface light source, is a chip product with a chip size below 200um. As a next-generation display technology, it is favored by many companies in the LED industry chain. It has many advantages such as flexibility and bendability, low power consumption, high brightness, high dynamic contrast ratio and narrow frame, and is favored by most manufacturers. [0003] The existing technology uses Mini-LED for LCD display backlight, because it can realize ultra-thin, multi-region and use small-size chip products at the same time, which can be comparable to OLED products in terms of actual effect, and can be compared with OLED in terms of material cost. It is proposed to use more competitive advantages. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/3426
Inventor 宋连燕丘永元
Owner HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
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