A backlight circuit board with variable power consumption and brightness
A circuit board and brightness technology, which is applied in the field of backlight circuit boards, can solve the problems of shortening the service life of LEDs, reducing LED luminous efficiency, unfavorable production and life, etc., and achieves the effect of brightness and power consumption
Active Publication Date: 2021-04-23
永州市福源光学技术有限公司
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Problems solved by technology
[0003] At present, most of the backlight LED drive light source boards on the market have a worrying problem of heat dissipation. Poor heat dissipation of LEDs will reduce the luminous efficiency of LEDs. At the same time, high temperatures will significantly shorten the service life of LEDs, which is not conducive to the use of production and life. Burning the circuit will cause a fire, and the corrosion of the circuit board will cause local heating or even damage, which is not conducive to the long-term use of the LED circuit. Therefore, a backlight LED drive light source board is proposed to solve the above problems.
[0004] The backlight circuit board in the prior art cannot be controlled in terms of power consumption and brightness adjustment, the LED luminous efficiency is low, and the circuit board heats up unevenly, which is not conducive to long-term use
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[0029] Preferred embodiments of the invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the invention, and are not intended to limit the protection scope of the invention.
[0030] It should be noted that, in the description of the invention, terms such as "upper", "lower", "left", "right", "inner", "outer" and other indicated directions or positional relationships are based on the terms shown in the accompanying drawings. Orientation or positional relationship, which is only for convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the invention.
[0031] In addition, it should be noted that, in the description of the invention, unless otherwise clearly stipulated an...
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The invention provides a backlight circuit board with variable power consumption and brightness, the circuit board and several LED lamp groups arranged on the circuit board, the positions of the several LED lamp groups divide the circuit board into six regions, and the LED lamp groups It includes the leftmost first LED lamp group arranged sequentially from left to right, which is an even number of M LED lamps evenly arranged up and down. The LED light groups in the middle and both ends of the circuit board of the present invention adopt different layout methods, and the circuit board is distributed into six areas. Through the adjustment of the brightness and power consumption of the five groups of LED light groups, the brightness and power consumption of the six areas of the circuit board can be adjusted. Each area is divided into separate areas, and the brightness and power consumption of each area can be adjusted independently. The entire circuit board can be adjusted by different LED light groups. Realize the adjustment of different brightness and power consumption.
Description
technical field [0001] The invention relates to the technical field of backlight circuit boards, in particular to a backlight circuit board with variable power consumption and brightness. Background technique [0002] LED is a semiconductor device with sensitive characteristics and has negative temperature characteristics. Therefore, it needs to be stabilized and protected during the application process, resulting in the concept of driving. LED devices have almost strict requirements for driving power. LEDs are not like Ordinary incandescent bulbs can be directly connected to 220V AC mains. As the most critical component of semiconductor lighting, LEDs are sought after by the market because of their energy saving, environmental protection, long life, and maintenance-free. The drive circuit is An important part of LED products, whether in the field of lighting, backlight or display panels, the choice of driving circuit technology architecture should match the specific applica...
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IPC IPC(8): F21V19/00F21Y115/10
CPCF21V19/001F21Y2115/10
Inventor 王春园
Owner 永州市福源光学技术有限公司