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Light guide plate as well as printing method and backlight module thereof

A printing method and backlight module technology, applied in printing, printing machines, rotary printing machines, etc., can solve the problems of increasing processes, increasing production costs, and damage to the surface of light-transmitting plates, and achieve the effect of reducing production costs and reducing processes

Active Publication Date: 2012-12-26
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: in the process of printing the scattering dots on the bottom surface of the light guide plate, the transparent protective film must be torn off first, thus increasing the process, and because the scattering dots are directly printed It is on the bottom of the light-transmitting plate, so it is easy to cause damage to the surface of the light-transmitting plate. When the light guide plate printed with scattered dots is a defective product, the light guide plate cannot be reused, thereby increasing the production cost

Method used

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  • Light guide plate as well as printing method and backlight module thereof
  • Light guide plate as well as printing method and backlight module thereof
  • Light guide plate as well as printing method and backlight module thereof

Examples

Experimental program
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Embodiment 1

[0031] image 3 It is a flow chart of a printing method for a light guide plate provided in Embodiment 1 of the present invention, and the printing method includes:

[0032] Step 10, printing a plurality of scattering dots on the transparent protective film pasted on the lower surface of the light-transmitting plate;

[0033] Step 20, curing the plurality of scattering dots printed on the transparent protective film to form a light guide plate with scattering dots.

[0034] In the present invention, the scattering dots are directly printed on the transparent protective film to form a light guide plate with scattering dots, and there is no need to tear off the transparent protective film on the bottom of the light-transmitting plate during printing, so the printing efficiency can be improved, and the printing of the scattering dots When the light guide plate is a defective product, the light-transmitting plate can be reused after the transparent protective film is torn off, th...

Embodiment 2

[0037] Figure 4 It is a side-view structure schematic diagram of the light guide plate provided by the second embodiment of the present invention. The light guide plate 1 includes: a light-transmitting plate 2; A plurality of scattering dots 3 are printed on the surface of the light board 2 .

[0038] In the light guide plate 1 of the present invention, a plurality of scattering dots 3 are directly formed on the transparent protective film 4. Therefore, when defective products appear in the light guide plate 1 due to printing quality, the transparent protective film pasted on the bottom surface of the light-transmissive plate 2 can be The film 4 is torn off, and the light-transmitting plate 2 with the transparent protective film 4 removed is continued to be used, thereby reducing the production cost of the light guide plate 1 .

[0039] The above-mentioned transparent protective film 4 should have high temperature resistance, so as not to cause the deformation of the transpa...

Embodiment 3

[0043] Figure 5 It is a side-view structure schematic diagram of the backlight module provided by the third embodiment of the present invention, the backlight module includes a light source 6, a light guide plate 1 and a reflector 5, wherein the light guide plate 1 includes a light-transmitting plate 2 and a transparent protective film 4, the The transparent protective film 4 is pasted on the lower surface of the light-transmitting plate 2, and a plurality of scattering dots 3 are printed on the surface of the transparent protective film 4 away from the light-transmitting plate 2; the reflection plate 5 is located below the light guide plate 1; the light source 6 is arranged on One or more of the four sides of the light guide plate 1 . The backlight module of the present invention can use the light guide plate 1 provided by any of the aforementioned embodiments.

[0044] The backlight module of the present invention adopts the light guide plate 1 with the scattering dots 3 p...

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PUM

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Abstract

The invention relates to a light guide plate as well as a printing method and backlight module thereof. The printing method of the light guide plate provided by the invention comprises the following steps: printing multiple scattering lattice points on a transparent protective membrane adhered to the lower surface of a light transmitting plate; and solidifying the multiple scattering lattice points printed on the transparent protective membrane, thereby forming the light guide plate with the scattering lattice points. The light guide plate provided by the invention comprises the light transmitting plate and the transparent protective membrane adhered to the lower surface of the light transmitting plate, and the surface, which is far away from the light permeability plate, of the transparent protective membrane is printed with the multiple scattering lattice points. The backlight module provided by the invention comprises a light source, the light transmitting plate and a reflection plate. According to the invention, the printing efficiency of the light guide plate can be enhanced, and the production cost of the light guide plate can be lowered.

Description

technical field [0001] The invention relates to a backlight module technology of a liquid crystal display device, in particular to a light guide plate, a printing method thereof and a backlight module. Background technique [0002] At present, in the flat panel display technology, the liquid crystal display occupies a dominant position, and the transmissive liquid crystal display is the mainstream of the current liquid crystal display technology. Since the LCD itself does not emit light, a backlight module is essential for a transmissive LCD. Generally speaking, the backlight module can be divided into side-light type and direct-light type, and the use of the side-light type backlight module can realize the ultra-thinning of the liquid crystal display device. [0003] A typical edge-lit backlight module consists of a light source, a light guide plate, a reflector, a diffusion sheet and a prism sheet. In order to increase the reflective performance of the light guide plate,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357B41M1/12B41F15/34F21V8/00F21V13/00
Inventor 闵航刘飞杨东升
Owner BOE TECH GRP CO LTD