A kind of backlight module and display device
A backlight module and backlight technology, applied in optics, nonlinear optics, static indicators, etc., can solve the problems of reduced detection yield and eye fatigue, and achieve the effect of avoiding frequent switching of light brightness between bright and dark
Inactive Publication Date: 2018-09-11
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0003] The embodiment of the present invention provides a backlight module and a display panel, which are used to solve the problem in the prior art that frequent switching between bright and dark during the detection process of the display device causes eye fatigue of the detection personnel, resulting in a decrease in the detection yield.
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[0024] Aiming at the problem existing in the prior art that frequent switching between bright and dark during the detection process of a display device causes eyestrain of inspectors and reduces detection yield, an embodiment of the present invention provides a backlight module and a display device.
[0025] The specific implementation manners of the backlight module and the display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The thickness and shape of each film layer in the drawings do not reflect the real scale, and the purpose is only to illustrate the content of the present invention.
[0026] Such as figure 1 As shown, a backlight module provided by an embodiment of the present invention includes: a light guide plate 101, a circuit board 102 located on the light-incident side of the light guide plate 101, a backlight source fixed on the circuit board 102, and a light output modu...
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The invention discloses a backlight module group and a display device. The backlight module group comprises a light guide plate, a circuit board positioned in the incident side of the light guide plate, a backlight source fixed on the circuit board, and a photosensitive sensor arranged on the light extraction surface of the light guide plate; and the circuit board is connected with the photosensitive sensor and backlight source to control the light extraction brightness of the backlight module group according to the light brightness detected by the photosensitive sensor. The photosensitive sensor is arranged on the light extraction surface of the light guide plate, and the circuit board controls the light extraction brightness of the backlight module group according to the light brightness detected by the photosensitive sensor, so that in the detection process of a display panel, the brightness of emitting light of the backlight module group can be controlled according to the light brightness detected by the photosensitive sensor, the brightness of light seen by detectors is within the range that can be acceptable by the eyes and can be used to detect the defects, and reduction of the detection yield rate caused by frequent change between bright and dark light seen by the detectors is avoided.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] During the testing process of Thin Film Transistor Liquid Crystal Display (TFT-LCD) products, when testing and analyzing the display panel, usually in a relatively dark environment, the testing personnel need to continuously check the display panel and the backlight module ( Back Light Unit, BLU) are detected separately (the display panel is attached to the backlight module or the display panel and the backlight module form a certain angle), when the display panel is attached to the backlight, the backlight is in a bright state (brightness at 10000cd / cm 2 ), the light brightness through the display panel is 500cd / cm 2 Left and right, when the display panel and the backlight module are separated, the inspector directly watches the backlight module in a high-brightness state, and the inspection environment is...
Claims
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IPC IPC(8): G09G3/34G02F1/13357G02F1/13
CPCG02F1/1309G02F1/1336G09G3/3406
Inventor 杨瑞锋赵天笑王子健王博宁
Owner BOE TECH GRP CO LTD