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Light source, control method thereof, backlight module and liquid crystal display device

A technology of backlight module and light source, which is applied in the field of light source and its control, backlight module and liquid crystal display device, which can solve the problems of human visual fatigue and retinal damage, and achieve the effect of uniform light distribution

Active Publication Date: 2015-09-02
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that in the existing LED light source, the proportion of blue light is relatively high, it is easy to cause visual fatigue of the human eye, and even cause retinal damage. Embodiments of the present invention provide a light source and its control method, a backlight module and a liquid crystal display device

Method used

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  • Light source, control method thereof, backlight module and liquid crystal display device
  • Light source, control method thereof, backlight module and liquid crystal display device
  • Light source, control method thereof, backlight module and liquid crystal display device

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0049] Before introducing the present invention in detail, first briefly introduce the sunlight and sunlight spectrum involved in the present invention.

[0050] Daylight, that is, sunlight, the color temperature of daylight is generally 5700K (Kelvin), which can be regarded as warm color light, which can show the truest color of objects and is not easy to cause visual fatigue to the human eye.

[0051]The light emitted by the sun covers a wide range from electromagnetic waves to ultraviolet rays. The sunlight spectrum involved in the present invention refers to the sunlight spectrum of visible light. The wavelength range of visible light is between 770 and 350nm (nanometers). In visible light, light in different wavelength ranges give...

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Abstract

The invention discloses a light source, a control method thereof, a backlight module and a liquid crystal display device, and belongs to the technical field of liquid crystal display. The light source comprises a plurality of luminous chips and a control unit, wherein the luminous chips are connected with the control unit; the ratio of spectral energy of first visible light to spectral energy of standard sun visible light can be confirmed by the control unit according to a wavelength corresponding to a peak value of a partial wave peak of the first visible light; luminescence of the first luminous chip is controlled; and the ratio of luminous flux of light emitted from the first luminous chip to luminous flux of light emitted from the other luminous chips is equal to the ratio of the spectral energy of the first visible light to the spectral energy of the standard sun visible light. In the light source, light in various colors is distributed uniformly, the problems that the proportion of blue light in the LED (light emitting diode) light source is high and visual fatigue and even retina injury are caused are solved, and an eye protecting effect is achieved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a light source and a control method thereof, a backlight module and a liquid crystal display device. Background technique [0002] With the continuous development of liquid crystal display technology, liquid crystal display devices are widely used in fields such as electric power, medical treatment, biochemistry, textiles, food testing, chromatographic analysis, electronic measurement, automotive electronics, and data acquisition. A liquid crystal display device generally includes: a display panel and a backlight module, wherein the backlight module includes a light source, and the backlight module can provide a light source for the display panel so that the display panel can normally display images. [0003] In the prior art, the light source is usually a light emitting diode (English: Light Emitting Diode, LED for short) light source, and the LED uses a blue ligh...

Claims

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Application Information

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IPC IPC(8): F21S8/00H05B37/02F21V19/00F21V29/50F21V5/04F21V8/00G02F1/13357H05B44/00
CPCF21S8/00F21V5/04F21V19/00G02F1/133606G02F1/133609H05B47/10G02B6/0068G02B6/0088G02B6/0091G02B6/003G02F1/133603H05B45/20Y02B20/30H05B47/165G02F1/133624G02F1/133607G02F1/133612F21Y2115/10F21V5/008G02B6/0081G02F1/133512G02F1/133514
Inventor 王晨如董学王光泉孙海威陈丽莉董瑞君曾智辉
Owner BOE TECH GRP CO LTD
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