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Reflector plate and preparation method thereof, and backlight with reflector plate

A reflective sheet and a technology for reflecting light, applied in the field of reflective sheet and its preparation, and backlight source, can solve the problem of large color shift of backlight source, and achieve the effects of improving display quality, improving color shift phenomenon, saving energy and materials

Inactive Publication Date: 2012-08-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problems to be solved by the present invention include, aiming at the problem of relatively large color shift in the backlight source in the prior art, providing a reflective sheet that can solve the problem of color shift

Method used

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  • Reflector plate and preparation method thereof, and backlight with reflector plate
  • Reflector plate and preparation method thereof, and backlight with reflector plate
  • Reflector plate and preparation method thereof, and backlight with reflector plate

Examples

Experimental program
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Effect test

Embodiment 1

[0034] This embodiment provides a reflective sheet, which includes a reflective layer for reflecting light, and the reflective sheet is blue.

[0035] The reflection sheet of this embodiment is blue, and its absorption ability to blue light is relatively weak, and its absorption ability to other colors of light (such as yellow light) is relatively strong, and the proportion of blue light in the light reflected by it increases, so when this embodiment When the reflective sheet of the example is attached to the light guide plate, it can increase the proportion of blue light in the emitted light and improve the color shift (can reduce the color shift by 1 to 20‰); moreover, the light emitted from the far light end of the light guide plate Originally, the color shift is relatively serious, but the reflective sheet of this embodiment just increases the blue light in the light emitted from the far-beam end (because the proportion of reflected light in the light emitted from the far-b...

Embodiment 2

[0037] This embodiment provides a reflective sheet, which includes a reflective layer for reflecting light, and the reflective layer is blue.

[0038] That is to say, the reflective layer used to reflect light in the reflective sheet of this embodiment is blue, so that the reflective sheet is blue; of course, as mentioned above, the main material of the reflective layer can be a reflective layer material such as PET , and the blue pigments can be blue pigments such as C.I. Pigment Blue 60.

[0039] Preferably, the reflective layer contains 1% to 20% blue pigment by mass. That is to say, the reflective layer of the reflective sheet of this embodiment is blue by mixing blue pigment, and the content of blue pigment is preferably 1-20wt% (wt%: mass percentage); Within the range, it does not affect the reflective ability of the reflective layer, but also makes the reflective layer have color.

[0040] Of course, the reflective sheet of this embodiment may also include known struc...

Embodiment 3

[0042] Such as figure 2 As shown, this embodiment provides a reflective sheet 1, which includes a reflective layer 11 for reflecting light, and also includes an adhesive layer 12, and the adhesive layer 12 is blue.

[0043] That is to say, the adhesive layer 12 used to bond the reflective sheet 1 on the light guide plate in the reflective sheet 1 of this embodiment is blue, so that the reflective sheet 1 is blue; of course, the adhesive The main material of the layer 12 can be an adhesive such as acrylic adhesive, and the blue pigment can be a blue pigment such as C.I. Pigment Blue 60.

[0044] The advantage of making the adhesive layer 12 blue is that changing the adhesive layer 12 will not affect the reflective ability of the reflective sheet 1, and can ensure that its reflective effect will not be reduced; at the same time, for reflective sheets with metal reflective layers 11 1. It is difficult to make the reflective layer 11 blue, but it is simple and easy to make the a...

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PUM

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Abstract

The invention provides a reflector plate, a preparation method thereof, and a backlight with the reflector plate, belonging to the technical field of liquid crystal display and solving the problem of large color cast of an existing backlight. The reflector plate provided by the invention is blue and is provided with a light reflecting layer used for reflecting light. The backlight provided by the invention comprises a light guide plate which is provided with the reflector plate. The preparation method of the reflector plate provided by the invention comprises the steps of adding blue pigment in the raw material of the light reflecting layer or a binder. The invention can be used for the backlight used for a liquid crystal display device and particularly used for the backlight using the side light incident type light guide plate.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and in particular relates to a reflection sheet, a preparation method thereof, and a backlight source provided with the reflection sheet. Background technique [0002] A backlight is an important component of a liquid crystal display device. Among various backlights, a backlight using a side-illuminated light guide plate is more common. Such as figure 1 As shown, the backlight mainly includes a light source 3 and a light guide plate 2. The light source 3 can be an LED light bar, a cold cathode fluorescent tube (CCFL) or the like. 3. The emitted light enters the light guide plate 2 from the light incident surface 21, then exits from the upper surface (light exit surface) of the light guide plate and enters the liquid crystal display module. In order to make full use of the light emitted by the light source 3, reflective dots can be formed on the bottom surface of the light guide p...

Claims

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Application Information

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IPC IPC(8): G02B5/08F21S8/00F21V7/00G02F1/13357
CPCG02B6/0055G02B6/0065
Inventor 王培娜
Owner BOE TECH GRP CO LTD
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