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Composite light guide plate, manufacture method of composite light guide plate, backlight module and display device

A technology for a backlight module and a manufacturing method, which is applied to optics, light guides, optical components, etc., can solve problems such as affecting product quality, low assembly efficiency of backlight modules, and thin light guide plates being easily deformed by heat, thereby improving quality and assembly. The effect of efficiency

Inactive Publication Date: 2013-12-04
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a composite light guide plate and a manufacturing method thereof, a backlight module provided with the composite light guide plate, and a display device provided with the backlight module, which solves the problem that the assembly efficiency of the existing backlight module is low. Low, and the existing thin light guide plate is easily deformed by heat, which affects the technical problems of product quality

Method used

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  • Composite light guide plate, manufacture method of composite light guide plate, backlight module and display device
  • Composite light guide plate, manufacture method of composite light guide plate, backlight module and display device
  • Composite light guide plate, manufacture method of composite light guide plate, backlight module and display device

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Embodiment 1

[0030] Such as figure 1 As shown, the composite light guide plate provided by the embodiment of the present invention includes a light guide layer 11 and a diffusion layer 12 formed on the light guide layer 11, and the lower surface of the light guide layer 11 is a reflective surface.

[0031] The light guide layer 11 in the composite light guide plate can diffusely reflect the light emitted by the light source located on the side of the light guide layer 11 to form a surface light source; the diffusion layer 12 in the composite light guide plate can diffuse the light reflected by the light guide layer 11 , forming a more uniform surface light source. Therefore, in the assembly process of the backlight module, after assembling the composite light guide plate provided by the embodiment of the present invention, there is no need to install the diffusion plate, thereby eliminating the process of installing the diffusion plate and improving the assembly efficiency of the backlight...

Embodiment 2

[0035] Such as figure 2 As shown, the embodiment of the present invention provides a backlight module, including a light source 2 and the composite light guide plate 1 provided in the first embodiment above. The light source 2 is preferably a light emitting diode (Light Emitting Diode, LED for short), and is arranged on the side of the light guide layer 11 of the composite light guide plate 1 .

[0036] Further, a reflective plate 3 is arranged below the composite light guide plate 1 , and at least one layer of prism plates is arranged above the composite light guide plate 1 . The function of the prism plate is to concentrate the outgoing light on the display direction as much as possible, so as to increase the display brightness. In this embodiment, a lower prism plate 4 and an upper prism plate 5 are arranged above the composite light guide plate 1 . In other implementation manners, only one layer of prism plate may be arranged on the composite light guide plate.

[0037...

Embodiment 3

[0040] An embodiment of the present invention provides a display device, including the backlight module provided by the above-mentioned embodiments. The display device may be any product or component with a display function such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, and a tablet computer.

[0041] Since the display device provided by the embodiment of the present invention has the same technical features as the backlight module and the composite light guide plate provided by the above embodiment of the present invention, it can also produce the same technical effect and solve the same technical problem.

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Abstract

The invention discloses a composite light guide plate, a manufacture method of the composite light guide plate, a backlight module with the composite light guide plate, and a display device with the backlight module, belongs to the field of display technologies, and aims at solving the problems that the assembling efficiency of an existing backlight module is low, and an existing thin type light guide plate can deform easily due to heat, and influences the quality of products. The composite light guide plate comprises a light guide layer and a diffusion layer formed above the light guide layer. The lower surface of the light guide layer is a reflection face. The backlight module comprises a light source and the composite light guide plate. A light source is arranged on the side face of the light guide layer of the composite light guide plate. The display device comprises the backlight module. The composite light guide plate is used for improving display devices such as liquid crystal televisions, liquid crystal displays, digital picture frames, cell phones, and tablet personal computers.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a composite light guide plate and a manufacturing method thereof, a backlight module provided with the composite light guide plate, and a display device provided with the backlight module. Background technique [0002] With the continuous development of display technology, thin film transistor liquid crystal display (ThinFilmTransistorLiquidCrystalDisplay, TFT-LCD) has the advantages of small size, low power consumption, no radiation, etc., and occupies a dominant position in the field of flat panel display. The backlight module is an important part in TFT-LCD, which is used to provide uniform surface light source for TFT-LCD. The current backlight module usually includes a reflective plate, a light guide plate, a diffuser plate, a lower prism plate and an upper prism plate arranged sequentially from bottom to top, and a light source is arranged on the side of the li...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02B6/00
CPCB29D11/00663B29C45/16G02B6/005G02B6/0051G02B6/0055G02F1/1303G02F1/133615G02F2202/12
Inventor 姜太声权宁万
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD