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LED television circuit

A technology for LED TVs and LED lights, applied to TVs, color TVs, components of color TVs, etc., can solve problems such as difficulty in adjusting the backlight of LED TVs, and achieve the effects of low cost, reduced scope, and reduced impact.

Inactive Publication Date: 2015-12-09
苏州市英富美欣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is: to provide a LED TV circuit, which solves the problem of difficult adjustment of the LED TV backlight in the prior art

Method used

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  • LED television circuit
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Embodiment Construction

[0026] The structure and working process of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] Such as figure 1 Shown, a kind of LED TV circuit, comprises display module, control module, power supply module, backlight module, and described display module is used for video display, and described backlight module is used for providing backlight for display module, and described control module is used for controlling The work of the display module and the backlight module, the power module is used to provide AC and DC power, the backlight module includes red LED lights, green LED lights, blue LED lights and corresponding color driver chips, each driver chip drives a group For LED lights of the same color, each signal output pin of the driving chip is connected to one LED light, wherein a current limiting resistor is connected in series between the red LED light and the power supply, and the three driving chips are connect...

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Abstract

The invention discloses an LED television circuit. The LED television circuit comprises a display module, a control module, a power module and a backlight module; the display module is used for displaying videos; the backlight module is used for providing backlight for the display module; the control module is used for controlling the work of the display module and the backlight module; the power module is used for providing AC / DC power; the backlight module comprises red LED lamps, green LED lamps, blue LED lamps and driving chips of corresponding colors; each driving chip drives a group of LED lamps of the same color and each signal output pin of the driving chip is connected with one LED lamp, wherein a current-limiting resistor is connected in series between the red LED lamps and a power source; the three driving chips are orderly connected in series; a fixed-value resistor and an adjustable resistor are connected in series between the constant-current driving pin of each driving chip and a signal ground. The LED television circuit achieves an effective compensation effect on the display module of an LED television.

Description

technical field [0001] The invention belongs to the field of household appliances, and in particular relates to an LED TV circuit. Background technique [0002] The strict name of the so-called LED TV is "LED backlight LCD TV", which refers to the LCD TV with LED as the backlight. In the strict sense, LED TV refers to the TV that completely uses LED (light-emitting diode) as the imaging device. That is, an ultra-high-density display application product with TV functions designed with LED display screens, and the size is not limited. It replaces traditional fluorescent tubes with LED light sources. LED TV has outstanding advantages such as better picture quality, longer theoretical life, more energy saving, more environmentally friendly manufacturing process, and thinner LCD panel. However, not all LED TVs have the above advantages. [0003] LED backlight has many advantages over CCFL: [0004] Energy saving: the photoelectric efficiency of cold cathode lamps is about 60lm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44
Inventor 孙志君方继广唐猛王国荣
Owner 苏州市英富美欣科技有限公司