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Backlight LED structure, backlight and display device

By arranging flange structures and light guide points on the LED bracket, the problem of bright spots or bright lines in edge-lit LED backlights is solved, ensuring light efficiency and a narrow frame design to avoid dark areas of light on both sides of the display panel.

Inactive Publication Date: 2013-04-03
BOE TECHNOLOGY GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a backlight LED structure, a backlight and a display device, which are used to solve the problem that bright spots or bright lines appear on both sides of the display panel due to the dark area irradiated by the backlight LED structure, and at the same time, it can also ensure that the LED structure Excellent light effect, without adding new components, and without affecting the narrow bezel design of the LCD

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Figure 4 Shown is a top view of a backlight LED structure in an embodiment of the present invention. Such as Figure 4 As shown, the backlight LED structure 5 in the embodiment of the present invention includes an LED bracket 8 (hereinafter referred to as "bracket") and an LED chip 7 fixed on the bracket 8. The bracket 8 is usually made of resin materials such as PPA and PCT, and the LED chip 7 There are LED lights and related drive circuits. Wherein, the upper side of the bracket 8 close to the light guide plate 2 has a flange structure 9. When the backlight LED structure 5 and the light guide plate 2 are installed in cooperation, the flange structure 9 covers the upper side of the light guide plate 2, and the flange structure 9 has corner areas 11 extending outward at both ends, and light guide dots 12 are distributed on the lower surfaces of the two corner areas 11, which can not only prevent the LED light from directly coming from the matching gap between the backli...

Embodiment 2

[0038] The embodiment of the present invention provides a backlight source, which adopts the backlight source LED structure in the first embodiment, does not illuminate dark areas near the incident surface on both sides of the light guide plate, and ensures the good quality of the backlight source.

Embodiment 3

[0040] An embodiment of the present invention provides a display device, which adopts the backlight source in the second embodiment, so that bright spots or bright lines do not appear on both sides of the display panel of the display device, which improves the display quality and can realize the narrowness of the display device. Border design.

[0041] It can be seen from the above embodiments that the backlight LED structure, backlight and display device provided by the present invention provide a flange structure on the upper side of the LED bracket close to the light guide plate. When the LED structure and the light guide plate are installed together The flange structure is wrapped on the upper side of the light guide plate, and two ends of the flange structure have corner areas extending outward, and light guide mesh points are distributed on the lower surfaces of the two corner areas. It can not only prevent the LED light from directly emitting from the matching gap between ...

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PUM

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Abstract

The invention belongs to the technical field of liquid crystal display and discloses a backlight LED structure, a backlight and a display device. A flange structure is arranged on the upper side edge of an LED bracket and is close to a light guide plate; when the LED structure and the light guide plate are mounted in a matching manner, the flange structure is arranged on the upper side of the light guide plate in a coating manner; angle areas extending outwards are arranged at the two ends of the flange structure; and light guide lattice points are distributed on the lower surfaces of the angle areas. The invention has the advantages that not only can LED light be prevented from being emitted from a fitting clearance between the backlight LED structure and the light guide plate directly, and a shielding effect is obtained, but also under the action of reflection and scattering of the light guide lattice points, the trend of light in the backlight LED structure can be controlled, the propagation direction of light can be diverged, irradiation dark space can be avoided, and bright spots or bright lines are efficiently prevented from existing on two sides of a display panel.

Description

Technical field [0001] The present invention relates to the technical field of liquid crystal display, in particular to a backlight LED structure, a backlight source and a display device. Background technique [0002] Since the liquid crystal itself does not emit light, in various liquid crystal display devices (Liquid Crystal Display, hereinafter referred to as "LCD") such as liquid crystal displays and LCD TVs, it is necessary to rely on external light sources to achieve display. The light emitting diode (Light Emitting Diode, hereinafter referred to as "LED") backlight has become the mainstream backlight because of its good color rendering characteristics, long service life, and mercury-free environmental protection. [0003] LED backlights are classified into edge-lit and direct-lit types according to the distribution of LEDs. Edge-lit LED backlights are widely used in small and medium-sized LCDs due to their small number of LEDs, low cost, and thin thickness. in. figure 1 Sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V21/00F21V8/00G02F1/13357F21Y101/02
CPCG02B6/0023G02B6/0031G02B6/0068G02B6/0091
Owner BOE TECHNOLOGY GROUP CO LTD