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Optical package, optical lens and backlight assembly and display device

An optical component and prism technology, which is applied in the field of backlight source assemblies and display devices, can solve the problems of inability to obtain uniform back light, inability to ensure mixing area, and limited use of light guide plates.

Inactive Publication Date: 2006-10-25
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, with the ultra-thinning of LCD TVs or monitors using backlight units, the use of light guide plates with a certain thickness is limited
[0005] Moreover, a sufficient mixing zone cannot be ensured, and red, green, and blue spots emitted by light-emitting diodes can be seen even with a light guide plate.
Therefore, there is a disadvantage that uniform backlight cannot be obtained.
[0006] That is, a sufficient color mixing area cannot be ensured, and there is a disadvantage of spots of light emitted by each light-emitting diode that can be recognized by the human eye.

Method used

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  • Optical package, optical lens and backlight assembly and display device
  • Optical package, optical lens and backlight assembly and display device
  • Optical package, optical lens and backlight assembly and display device

Examples

Experimental program
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Embodiment 1

[0034] figure 1 is a stereogram of an optical prism according to an embodiment of the present invention, figure 2 is showing figure 1 Schematic diagram of the optical prism principle shown in . In particular, an optical prism of the same thickness imparting a light guiding function is shown. Here, the optical prism provided with a light guiding function refers to a prism that functions as a prism plate in addition to the original function of the prism, that is, a prism that uniformly distributes light by total reflection.

[0035] refer to figure 1 and figure 2 , the optical prism 10 includes a central prism portion 12 , a peripheral prism portion 14 , and a light guide portion 16 . A groove 18 for receiving light-emitting elements such as light-emitting diodes (LEDs) is formed on the back surface of the central prism portion 12 . The shape of the groove 18 is adapted to the shape of the light emitting element.

[0036] The central prism portion 12 has a convex shape ...

Embodiment 2

[0066] Figure 6 is a perspective view of an optical prism according to another embodiment of the present invention, Figure 7 is showing Figure 6 Schematic diagram of the optical prism principle shown in . In particular, a light guide portion of an optical prism provided with a light guide function with a different thickness is shown.

[0067] refer to Figure 6 and Figure 7 , the optical prism 40 includes a central prism portion 42 , a peripheral prism portion 44 , and a light guide portion 46 .

[0068] A groove 48 for receiving light-emitting elements such as light-emitting diodes (LEDs) is formed on the back surface of the central prism portion 42 . The shape of the groove 48 is adapted to the shape of the light emitting element.

[0069] The central prism portion 42 has a convex shape that is relatively convex toward the front direction. The central prism portion 42 has a circular shape in plan. The central prism portion 42 is defined by curved surfaces defined...

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Abstract

The invention discloses an optical component, an optical prism, a backlight source assembly and a display device having the optical component and the optical prism. The optical prism includes a central prism part, a peripheral prism part, and a light guide plate. The optical component includes a plurality of light emitting parts and a prism panel. The prism panel defines a prism part corresponding to each light emitting part, and has a light guide part extending laterally of each prism part. As a result, the optical prism arranged on the light guiding part is endowed with a light guiding function, so as to improve the uniformity of the light emitted by the light emitting diode.

Description

technical field [0001] The present invention relates to an optical component, an optical prism, and a backlight assembly with the optical component and the optical prism, and a display device. More specifically, it relates to an optical component with a light guiding function, an optical prism, and a A backlight assembly and a display device. Background technique [0002] Generally, a direct-lit backlight unit (BLU) having a plurality of light emitting diodes (LEDs) has a light guide plate that uniformly diffuses light concentrated in the top direction. [0003] The light guide plate is mainly made of polymethylmethacrylate-serises resin (PMMA). The refractive index of the light guide plate is about 1.5. The refractive index of the light guide plate is greater than that of air, so the light incident from the outside is totally reflected inside the light guide plate, and as a result, it plays the role of uniformly diffusing light. [0004] However, as LCD TVs or monitors u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335F21V5/00F21V5/04G02B5/04H01L33/58H01L33/60
CPCG02B3/0037G02B3/0056G02B6/002G02B6/0021Y10S362/80G02F1/1335
Inventor 朴世起李相裕金基哲南锡铉
Owner SAMSUNG DISPLAY CO LTD