Device capable of reducing dark schlieren of light leading board

A technology of light guide plate and dark pattern, applied in the field of light guide plate, can solve the problems of affecting image quality and poor brightness uniformity, and achieve the effect of improving brightness uniformity

CN1721937AInactive Publication Date: 2006-01-18CORETRONIC
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2006-01-18
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a device, which can reduce the submerged line of light driving plate. It comprises a light driving plate with at least one light inlet side which has at least one linear road on its part surface, at least one lamp pipe which is positioned on the light inlet side out end of the light driving plate, and a reflecting cover which is covered with the light pipe form the light inlet side of light driving plate, so that the light of the light pipe can use the reflecting cover to do reflection and incidences to the light driving plate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to a light guide plate, especially a device capable of reducing dark lines of the light guide plate.

Background technique

[0002] see figure 1 The backlight module of a conventional liquid crystal display includes a transparent light guide plate 1, and a light tube 2 is provided on one or both sides of the light guide plate 1, and the light is injected into the light guide plate 1 by means of the light tube 2, and finally The light is evenly emitted from the upper surface 3 of the light guide plate 1 to provide a side light source for the liquid crystal element, so that the liquid crystal element can display images. But between the lamp tubes 2 or the area far away from the lamp tubes 2, since the light provided by the lamp tube 2 is less, the light in this area will enter the light guide plate 1 to form a light energy depletion area 4, and the depletion area 4 will follow the light guide plate. The total reflection effect ...

Examples

Embodiment Construction

[0043] Relevant present invention is to achieve above-mentioned purpose, the technical means adopted and effect thereof, give three preferred embodiments hereby, and cooperate drawing to illustrate as follows:

[0044] see figure 2 , 3 As shown, the device of the present invention that can reduce the dark lines of the light guide plate includes a light guide plate 10, at least one lamp tube 20 is arranged on the outer end of the light incident side 12 of the light guide plate 10, and a reflector 30 is arranged on the light incident side 12. The outer end of the side 12 is covered outside the lamp tube 20; where all or part of the surface of the light incident side 12 of the light guide plate 10 is provided with at least one linear texture 13, the shape of each linear texture 13 and the distance between them are It can be set according to the brightness of the light beam incident on the light-incident side. The length direction of the linear lines 13 is parallel to the length...