Backlight module and display device
A backlight module and backlight technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems affecting the display quality of the display device, and achieve the effect of improving the display quality, reducing the difference, and alleviating the darkening of the central area.
Active Publication Date: 2021-11-19
XIAMEN TIANMA MICRO ELECTRONICS
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- Application Information
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Problems solved by technology
However, in the display screen of the display device using the HDR display mode, the surrounding area of the display screen is darker than the central area of the display screen, which affects the display screen quality of the display device.
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[0038] 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.
[0039] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do without departing from the connotation of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.
[0040] Existing display device...
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Abstract
The embodiment of the present invention discloses a backlight module, the backlight module includes: a backlight source, the backlight source is used to generate outgoing light; a brightness enhancement film located on the light outgoing side of the backlight source, the brightness enhancement film includes a first A brightness enhancement film, the first brightness enhancement film includes a first region and a second region surrounding the first region, and the first region of the first brightness enhancement film has a plurality of first regions extending along a first direction A light condensing element, the second region of the first brightness enhancement film has at least one second light condensing element extending along the first direction, the second light condensing element has a refractive index greater than that of air, and Under the same conditions and under the irradiation of the same light beam, the light spot formed by the outgoing light of the second condensing element on the preset plane is smaller than the light spot formed by the outgoing light of the first condensing element on the predetermined plane, so as to alleviate the problem. The brightness difference between the edge area and the center area of the display screen is displayed to improve the quality of the display screen.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device including the backlight module. Background technique [0002] High-dynamic range images (High-Dynamic Range, referred to as HDR), compared with ordinary images, can provide more dynamic range and image details, and can better reflect the visual effects in the real environment, and gradually become an important aspect in the display field. research direction. However, in the display screen of an existing display device adopting the HDR display mode, the peripheral area of the display screen is darker than the central area of the display screen, which affects the display screen quality of the display device. Contents of the invention [0003] In order to solve the above-mentioned technical problems, an embodiment of the present invention provides a backlight module and a display device to improve the quality of a display image. [00...
Claims
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IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133607
Inventor 陈宝玲何艳林凌安恺沈柏平
Owner XIAMEN TIANMA MICRO ELECTRONICS