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Light guide plate manufacturing method

A manufacturing method and technology of a light guide plate, applied in the directions of optics, light guide, light source, etc., can solve problems such as heat generation, and achieve the effect of low heat generation

Inactive Publication Date: 2013-07-03
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because, when the color is not uniform according to the position, and it is gathered at the same place, it will cause a serious problem of heat generation

Method used

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  • Light guide plate manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a method for manufacturing a light guide plate, comprising the following steps:

[0041] Step 1, forming an array comprising a plurality of protrusions on the surface of the substrate 100, such as figure 1 shown.

[0042] Step 2, forming a reflective layer on the side of the protrusion facing the predetermined light source, so that the reflectivity of the reflective layer increases as the protrusion to which the reflective layer belongs is farther away from the light source. This step specifically includes:

[0043] Step 1, such as figure 2 As shown, a photoresist 400 is formed on the surface of the bump array and planarized.

[0044] Step 2, such as image 3 As shown, the photoresist 400 is ashed, and the photoresist 400 between two adjacent protrusions is reserved, so that the thickness of the remaining photoresist 400 is smaller than the height of the protrusions.

[0045] Step 3, such as image 3 As shown, a reflective material film 3...

Embodiment 2

[0054] This embodiment provides another method for making a light guide plate, including the following steps:

[0055] Step 1, forming an array comprising a plurality of protrusions on the surface of the substrate, such as figure 1 shown.

[0056] Step 2, forming a reflective layer on the side of the protrusion facing the predetermined light source, so that the reflectivity of the reflective layer increases as the protrusion to which the reflective layer belongs is farther away from the light source. This step specifically includes:

[0057] For the side of the reflective protrusion to be formed that is scheduled to face the light source, the following steps are performed:

[0058] Step 1, forming a photoresist.

[0059] Step 2, exposing and developing the photoresist on the raised surface of n rows or n columns to expose the side facing the predetermined light source.

[0060] Step 3, forming a reflective material film with a certain reflectivity on the exposed raised sur...

Embodiment 3

[0070] This embodiment also provides a display device. Including the light guide plate produced in the above-mentioned Examples 1 and 2. The display device may be any product or component with a display function, such as a liquid crystal panel, electronic paper, a mobile phone, a tablet computer, a television set, a monitor, a notebook computer, a digital photo frame, a navigator, and the like.

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Abstract

The invention relates to the technical field of display, and discloses a light guide plate manufacturing method. The light guide plate manufacturing method comprises the steps of: forming an array which comprises a plurality of bulges on the surface of a base plate; forming a reflection layer from the bulge surface to the side surface of a predetermined light source to form reflection bulges so as to enable the reflectivity of the reflection layer to be greater when the reflection bulges of the reflection layer are farther away from the light source; and forming a transparent protection layer and setting the light source at the side surface opposite to the reflection layer. According to the light guide plate manufacturing method, when the reflection bulges of the reflection layer are farther away from the light source, the reflectivity of the reflection surface is great, so that the reflected light is relatively uniform, and at the same time, the heating problem caused by gathering the light source to the same place to obtain uniform light in the prior art is avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for manufacturing a light guide plate. Background technique [0002] In the thin film transistor liquid crystal display (TFT LCD), the LED in the back light unit (BLU) provides the light source, and the light is dispersed in the light guide plate (LGP), so that the overall TFT LCD screen has uniform brightness. The operation mode of TFT LCD has field sequential control (FSC, field sequential drive control), in which red, green, and blue colors are made to emit light in sequence according to time, and all red, green, and blue colors are finally adjusted by driving the panel against each time. , thereby improving efficiency. However, when this FSC driving method is selected, multiple groups of LEDs of different colors are required to emit light sequentially in time-sharing or in different regions according to the control signal, and realize red, green and blue colors res...

Claims

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Application Information

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IPC IPC(8): F21V8/00G02B6/00F21Y101/02
CPCB29D11/00663G02B6/0053G02B6/0055G02B6/0065G02B6/0068
Inventor 金熙哲魏燕徐超张春芳
Owner BOE TECH GRP CO LTD
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