CN201803316U

CN201803316U - Backlight guide plate

Info

Publication number: CN201803316U
Application number: CN2009202600211U
Authority: CN
Inventors: 周建红
Original assignee: Shenzhen Hongzhi Electronic Technology Co Ltd
Current assignee: Shenzhen Hongzhi Electronic Technology Co Ltd
Priority date: 2009-11-02
Filing date: 2009-11-02
Publication date: 2011-04-20
Anticipated expiration: 2019-11-02

Abstract

The utility model belongs to the field of backlight and particularly relates to a novel light guide plate for enhancing the light-guide performance by adopting the prismatic structure. A light guide plate in the backlight guide plate takes the shape of a flat plate; an LED lamp panel is arranged at the lower part of the light guide plate; more than one LED is arranged on the lamp panel; mutually parallel prisms are arranged on the emergent light surface of the light guide plate and provided with triangular cross sections; the mutually parallel prisms are evenly distributed on the upper surface of the light guide plate and combined into a whole with the light guide plate. The light guide plate provided by the utility model has higher practicability and low cost and is mainly used in a backlight source.

Description

A kind of backlight light-guiding plate

[technical field]

The utility model belongs in field of backlights, relates in particular to a kind of a kind of novel optic plate that improves the leaded light performance by prism structure.

[background technology]

Existing backlight in the process of practical application, brightness is difficult to satisfy the requirement of TFT glass, in order to strengthen the brightness of backlight, basically all will be at external BEF bright enhancement film, realize with the brightness that improves lamp, though the brightness by BEF bright enhancement film and raising lamp promotes height backlight. cost backlight all will significantly increase, existing BEF bright enhancement film is owing to make material and production technology problem simultaneously, cause the BEF bright enhancement film to exist easy scuffing, problems such as black-white point is many, the BEF bright enhancement film has limited the speed of its popularization because the production technology problem causes its price high.Above-mentioned problem long-term existence in industry, the very effective technical solution of neither one so far.

[summary of the invention]

The purpose of this utility model provides a kind ofly to be had than high practicability, and with low cost, mainly uses LGP in backlight.

In order to reach above-mentioned technical purpose, the technical solution that the utility model adopts comprises following content: described LGP is a tabular, the LGP bottom is provided with led light emitting diode lamp plate, this lamp plate is provided with an above led light emitting diode, this LGP exiting surface is provided with the prism that is parallel to each other, this prism cross section is a triangle, and be parallel to each other be evenly distributed on the LGP upper surface, and be combined as a whole with this LGP.

This LGP and prism opposing lower surface are provided with reflective salient point, and reflective salient point forms spherical shape at the LGP upper process, and integrally combine with LGP.

Prism, reflective salient point and LGP are that transparent material is made, and the three is structure as a whole.

By adopting above-mentioned technical solution, the utility model has obtained following technological merit and effect: prism adopts the technology that once becomes injection molding with reflective salient point in the utility model, prism and reflective salient point are become one structure on LGP, parallel prism utilizes the effect of prism to light refraction, make the light angle of LGP exiting surface obtain changing, make light guide more concentrated, reflecting back light simultaneously is repeated utilizing, thereby increase light output surface brightness, substitute the BEF bright enhancement film, significantly save cost.

[description of drawings]

Fig. 1 is the structural representation of LGP exiting surface of the present utility model;

Fig. 2 is the structural representation of LGP incidence surface of the present utility model;

Fig. 3 is LGP partial side view for B among Fig. 1 to partial view;

Fig. 4 LGP of the present utility model uses the mounting structure schematic diagram in backlight;

Fig. 5 is the structural representation of lamp plate of the present utility model;

Fig. 6 is the front view of shell of the present utility model;

Fig. 7 is the A-A cutaway view of Fig. 6;

Fig. 8 is the B-B cutaway view of Fig. 6.

[specific embodiment]

Below in conjunction with accompanying drawing the utility model is further described:

Become the led led lamp as depicted in figs. 1 and 2, the technological improvement of in the utility model, being carried out, be that surface that wiring board 1 is provided with led light emitting diode one side is fixed with the light that reflector layer 2 utilizes reflector layer 2 will shine wiring board 1 surface and fully reflects, reach the effect that improves lamplight brightness.

Its structure comprises following two kinds of structures, and as depicted in figs. 1 and 2, the reflector layer 2 of first kind of embodiment constitutes in order to be that reflector layer 2 has reflecting effect preferably for the reflective printing ink that is coated in wiring board 1 surface, and described reflective printing ink is white or silver color.The advantage that adopts this structure is easy to process, and reflector layer 2 with high above-mentioned this luminescent layer 2 manufacturing process of wiring board 1 bond strength is, at first process will be carried out in dust-free workshop, at first deployed reflective printing ink, preferably use the reflective printing ink of white, certainly according to using needs also can adopt silver color or other reflective printing ink, adopt silk screen printing process that above-mentioned reflective printing ink is printed on the wiring board 1 then, in the circuit board, promptly can be made into the lamp plate in the utility model then with reflector layer 2 with the welding of led light emitting diode.

Second kind of embodiment of the present utility model, described reflector layer is for pasting the film that has reflecting coating in the circuit board, on this film with wiring board on corresponding position, led light emitting diode position be provided with through hole, the led light emitting diode is by stretching out in these through holes.Adopt this structure, can shift to an earlier date batch making and have the film of reflector layer, then by adjusting the stamping position of through hole on the film, can use in the wiring board of different size and use, so it is strong that this frame mode has adaptability, processing and fabricating is advantage easily, is fit to more use use in small lot batch manufacture.

Should be understood that, the above specific embodiment can make those skilled in the art more fully understand the utility model, but limit the utility model never in any form therefore, although this specification has been described in detail the utility model with reference to drawings and Examples, but, it will be appreciated by those skilled in the art that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the protection domain of the utility model patent.

Claims

1. backlight light-guiding plate, it is characterized in that: described LGP is a tabular, the LGP bottom is provided with led light emitting diode lamp plate, this lamp plate is provided with an above led light emitting diode, this LGP exiting surface is provided with the prism that is parallel to each other, the prism cross section is a triangle, and being evenly distributed on the LGP surface of being parallel to each other, and is combined as a whole with this LGP.

2. a kind of LGP according to claim 1, it is characterized in that: described LGP and prism opposing lower surface are provided with reflective salient point, described reflective salient point is a spherical shape on the surface of LGP upper process, and with the LGP binding site be circular or oval.

3. a kind of LGP according to claim 2 is characterized in that: reflective salient point of described prism and LGP are that transparent material is made, and the three is structure as a whole.