Backlight source, backlight module and display device
A backlight and photoluminescence technology, applied in lighting devices, identification devices, light source fixing, etc.
Active Publication Date: 2019-03-26
XIAMEN TIANMA MICRO ELECTRONICS
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005] Embodiments of the present invention provide a backlight, a backlight module, and a display device to solve the problem of uniformity of backlight display in the related art
Method used
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Embodiment Construction
[0035] The direct type backlight source in the related art is such as figure 1 As shown, it includes a substrate 01 and a light-emitting device 02 located on the substrate 01, wherein the light-emitting surface of the light-emitting device 02 is arranged parallel to the substrate 01. This arrangement causes the area where the light-emitting device 02 is located to appear bright, and The area between the two light-emitting devices 02 is in a dark state, and the light and dark states of each area when the entire backlight is displayed are as follows: figure 2 As shown, it can be clearly seen that each area of the entire backlight source cannot exhibit uniform brightness.
[0036] Therefore, aiming at the above-mentioned problems existing in the backlight in the related art, the embodiment of the present invention provides a backlight, a backlight module and a display device. The specific implementation manners of a backlight source, a backlight module and a display device pr...
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Abstract
The invention discloses a backlight source, a backlight module and a display device. The backlight source comprises a substrate and a plurality of light-emitting devices arranged on the substrate at intervals; each light-emitting device comprises a supporting structure located on the substrate and a light-emitting chip located on the supporting structure; the side, away from the substrate, of eachsupporting structure is provided with an inclined surface at a preset angle with the substrate, the side, facing the substrate, of each supporting structure is provided with a plane parallel to the substrate, the light-emitting chips are located on the inclined surfaces at a preset angle, and the included angle of preset degrees is formed between a light-emitting surface of each light-emitting chip and the substrate so that light emitted by the light-emitting devices can enable an area where the light-emitting devices are located to be in a bright state, gaps of the light-emitting devices arebright, and therefore all areas of the backlight source are in alternately bright and dark states to improve the display uniformity of the backlight source.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a backlight source, a backlight module and a display device. Background technique [0002] In recent years, backlights with direct light-emitting structures are widely used because they do not need structures such as light guide plates and reflectors, and can make the thickness of the backlights thinner. [0003] In the related art, since the design of the thickness of the backlight tends to be thinner, an excessive light mixing distance cannot be reserved for the light-emitting devices; and considering the production cost, there will be a certain gap between the light-emitting devices. The gap, because there is no light-emitting device in the gap, the light intensity is weak, and there will be a dark area, while the light intensity in the area facing the light-emitting device is strong, and there will be a bright area, so that the backlight will show the phenomenon of light and...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G09F9/00F21V19/00F21V9/32G02F1/13357
CPCF21V19/00F21V9/32G02F1/133602G09F9/00G02F1/133614
Inventor 林伟
Owner XIAMEN TIANMA MICRO ELECTRONICS