A direct type backlight module and display device
A technology for backlight modules and display devices, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of poor uniformity of light sources on the exit surface and high display effects of display devices, and achieves improvement of poor uniformity, insufficient light mixing, and display effects. high effect
Active Publication Date: 2022-03-01
XIAMEN TIANMA MICRO ELECTRONICS
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Problems solved by technology
[0005] In view of this, the present invention provides a direct-type backlight module and a display device, which solves the problem of poor uniformity of the light source on the exit surface of the direct-type backlight module, and ensures a high display effect of the display device.
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[0039] 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.
[0040] As mentioned in the background, the backlight module is divided into a side-type backlight module and a direct-type backlight module according to the incident position of the light source. The side-type backlight module is to install the light-emitting device at the edge of the light guide plate on the back of the liquid crystal panel. The light emitted by the light-emitting device enters the light guide plate from the side of the light guide plate, and ...
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Abstract
The invention discloses a direct-type backlight module and a display device. The direct-type backlight module includes: a substrate; a plurality of lamp beads arranged on one surface of the substrate, and there is a gap area between any two adjacent lamp beads; And, at least one optical structure located in the light emitting direction of the lamp bead, wherein each optical structure corresponds to at least one lamp bead, and the optical structure is used to guide part of the light emitted by the corresponding lamp bead to the corresponding lamp bead at least Clearance area on one side. Through the optical structure, part of the light emitted by the corresponding lamp bead is guided to illuminate the gap area on at least one side of the lamp bead corresponding to the optical structure, and then, to compensate the brightness at the gap between two adjacent main lamp beads, improve The problem of insufficient light mixing between two adjacent main lamp beads in the gap area can further improve the problem of poor uniformity of the outgoing surface light source of the direct-type backlight module, and can also improve the brightness of the surface light source to ensure a high display effect of the display device.
Description
technical field [0001] The present invention relates to the field of display technology, more specifically, to a direct-lit backlight module and a display device. Background technique [0002] Liquid crystal display (Liquid Crystal Display, LCD) has many advantages such as thin body, power saving, no radiation, etc., and has been widely used, such as: mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen etc. [0003] Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a housing, a liquid crystal panel disposed in the housing, and a backlight module disposed in the housing. The structure of a traditional liquid crystal panel is composed of a color filter substrate (Color Filter), a thin film transistor array substrate (Thin FilmTransistorArray Substrate, TFT Array Substrate), and a liquid crystal layer (Liquid Crystal Layer) arranged between the t...
Claims
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IPC IPC(8): G02F1/13357
CPCG02F1/133602G02F1/133603G02F1/133606G02F1/133611G02F1/133607
Inventor 王小萍刘远明
Owner XIAMEN TIANMA MICRO ELECTRONICS