Direct type backlight module and display device
A backlight module and direct-lit technology, applied in optics, nonlinear optics, instruments, etc., can solve problems that affect the image quality of LCD panels, and achieve the effects of improving brightness uniformity, energy distribution uniformity, and avoiding halos
Pending Publication Date: 2022-02-18
RADIANT OPTO ELECTRONICS NANJING
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Problems solved by technology
However, the high energy density directly above the LED makes it easy to observe bright spots from the appearance of the direct-lit backlight module, which affects the image quality of the LCD panel
Method used
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[0028] The foregoing and other technical contents, features and efficacy of the present invention will be clearly presented in detail below with reference to the preferred embodiments of the drawings. The direction term mentioned in the following embodiments, such as: upper, lower, left, right, front, rear, bottom, top, etc., only reference to the direction in the drawings. Therefore, the direction used is intended to illustrate, and is not intended to limit the invention. Moreover, in the following examples, the same or similar components will use the same or similar reference numerals.
[0029] In the present invention, the straight backlight module can be used to provide the light source of the Liquid Crystal Display, LCD) panel, and each component in the straight backlight module includes the bottom surface and the top surface, the bottom surface and the top surface definition in the LCD. The panel is a reference reference, and each component is away from the LCD panel of the ...
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Abstract
The invention relates to a direct type backlight module and a display device. The direct type backlight module comprises at least one light-emitting diode, a shading piece and a diffusion plate. The shading piece is arranged above the light-emitting diode and corresponds to the light-emitting diode, and the size of the shading piece is larger than that of the light-emitting diode. The light shielding member comprises a light processing part and a light absorbing frame part. A part of light emitted by the light-emitting diode and emitted to the light shielding member is transmitted through the light processing part. The light absorbing frame part is connected to the outer periphery of the light processing part and used for absorbing light emitted to the light absorbing frame part. The diffusion plate is arranged above the shading piece. The display device comprises the direct type backlight module and a display panel.
Description
Technical field [0001] The present invention relates to a straight backlight module and a display device, and more particularly to a straight backlight module of luminance uniformity by means of a light-shielding sheet and a display device comprising the straight backlight module. Background technique [0002] With the advancement of technology, electronic devices with liquid crystal display (LCD) panels, such as mobile phones, tablets, laptops, vehicle display devices, etc., have become an indispensable item in modern people. Since the liquid crystal itself does not illuminate, the LCD panel needs to use a backlight module as a backlight. According to the position of the light source, the backlight module can be divided into a side-type backlight module and a straight backlight module, where the straight backlight module facilitates the reduction of the overall structural thickness, which can meet the thinning of the display device, so today The straight backlight module is mult...
Claims
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IPC IPC(8): G02F1/13357
CPCG02F1/133606G02F1/133611G02F1/133603
Inventor 陈蔚轩戴忠勇
Owner RADIANT OPTO ELECTRONICS NANJING