Surface light source device and driving method thereof, backlight device, display device
A driving method and backlight device technology, applied in the fields of optics, optical elements, nonlinear optics, etc.
Active Publication Date: 2021-10-08
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0002] Laser has a series of advantages such as high purity, good color gamut, and high luminous efficiency, but because of its high collimation, its application in liquid crystal display surface light source devices has been limited. Therefore, if the high collimation of laser display can be overcome Realizing the use of laser as a light source on the liquid crystal module can effectively improve the display's luminous purity, color gamut, and luminous efficiency.
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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0038] First aspect, such as figure 1 and figure 2 As shown, the embodiment of the present invention provides a surface light source device, including a laser light bar 1, a rotating reflection mechanism 2, and a diffusion plate 3, wherein:
[0039] Both the laser light bar 1 and the rotating reflection mechanism 2 are located on the side of the first surface of the diffusion plate 3;
[0040] The laser light bar 1 includes a plurality of laser generators 1...
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The invention relates to the field of display technology, and discloses a surface light source device, a driving method thereof, a backlight device, and a display device. The surface light source device includes a laser light bar, a rotating reflection mechanism, and a diffusion plate. The laser light bar and the rotating reflection mechanism are both located on the first surface side of the diffusion plate; the laser light bar includes a plurality of laser generators arranged along the first direction; the rotating The reflection mechanism extends along the first direction and is arranged opposite to the laser light bar; the rotation reflection mechanism is configured to: receive the laser light emitted by a plurality of laser generators, and reflect the laser light to the first surface of the diffuser plate; the rotation reflection mechanism can be wound around and The rotating shaft parallel to the first direction rotates, and along the rotation direction, the reflection inclination angle of the rotating reflection mechanism changes. With the rotation of the rotating reflection mechanism, the light spots formed by the reflected laser light on the diffusion plate are arranged in an array. The above-mentioned surface light source device adopts laser light as a light source, which can be used to improve performances such as luminous purity, color gamut, and luminous efficiency of a display device.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a surface light source device, a driving method thereof, a backlight device, and a display device. Background technique [0002] Laser has a series of advantages such as high purity, good color gamut, and high luminous efficiency, but because of its high collimation, its application in liquid crystal display surface light source devices has been limited. Therefore, if the high collimation of laser display can be overcome Realizing the use of laser as a light source on the liquid crystal module can effectively improve the display's performance such as luminous purity, color gamut, and luminous efficiency. Contents of the invention [0003] The invention discloses a surface light source device, a driving method thereof, a backlight device, and a display device, and aims to provide a surface light source device using laser light as a light source to improve performances such as l...
Claims
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IPC IPC(8): G02F1/13357G02B26/12
CPCG02B26/12G02F1/133615
Inventor 张乾杨炜帆高龙岳郭越刘清李维奇李娜
Owner BOE TECH GRP CO LTD