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Automatic switching method and automatic switching system of backlight current gear

A technology of automatic switching and backlight current, applied to TV system components, color TV components, TVs, etc., can solve the problems of high software maintenance and upgrade costs, low versatility, etc., to achieve strong versatility and reduce cost effect

Active Publication Date: 2021-05-07
SHENZHEN CULTRAVIEW DIGITAL TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, the embodiment of the present invention provides an automatic switching method and an automatic switching system of the backlight current gear, aiming at solving the problem that the traditional technical solution is not universal because a software can only support a backlight current value of one gear, and The problem of high software maintenance and upgrade costs

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  • Automatic switching method and automatic switching system of backlight current gear
  • Automatic switching method and automatic switching system of backlight current gear
  • Automatic switching method and automatic switching system of backlight current gear

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Embodiment Construction

[0020] 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.

[0021] The above-mentioned automatic switching method and automatic switching system of the backlight current gear, when receiving the loaded data, judge whether there is a preset file; read the current gear value according to the preset file, and obtain the maximum ADJ duty cycle value; Write the maximum ADJ duty cycle value into the register and reset the register to switch the backlight current range. In this way, one software can support multiple levels of backlight current, and achieve the effect of dynamically switching backlight current levels. It has strong versatility; at the same time, it...

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Abstract

An automatic switching method and an automatic switching system of a backlight current gear, when receiving loaded data, judge whether there is a preset file; read the current gear value according to the preset file, and obtain the maximum ADJ duty ratio value; The maximum ADJ duty cycle value is written into the register, and the register is reset to switch the backlight current range. In this way, a software can support multiple gears of backlight current, which has the effect of dynamically switching backlight current gears. In the technical solution, a piece of software can only support one level of backlight current value, resulting in poor versatility and high software maintenance and upgrade costs.

Description

technical field [0001] The invention belongs to the technical field of backlight control, and in particular relates to an automatic switching method and an automatic switching system of backlight current gears. Background technique [0002] At present, in order to achieve unified hardware, low cost and standardization of the three-in-one TV main board, a hardware main board generally covers a wide range of current values, and its backlight current value is output through the TV main chip with a fixed frequency ADJ ( adjust, adjust) duty cycle to control the power supply IC to output the corresponding backlight current; specifically, the three-in-one TV main board integrates three modules of TV power supply, backlight power supply and TV main board. Since the ADJ duty cycle of the main board of the TV is not linearly related to the current output by the power supply IC, after a layout is designed by the hardware, the power supply IC needs to provide a relationship table betwe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34H04N5/64
CPCG09G3/3406H04N5/64
Inventor 覃泰瑾陈志亮吴子明丁敏杰
Owner SHENZHEN CULTRAVIEW DIGITAL TECH