Method and device for producing lattice points of diffusion plate of light-emitting diode (LED) backlight module

A technology of backlight module and generating device, which is applied in the direction of lighting devices, lighting device components, light sources, etc., can solve the problem of high cost of opening, and achieve the effect of improving development speed and saving costs
CN102829435AActive Publication Date: 2012-12-19创维集团智能科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
创维集团智能科技有限公司
Publication Date
2012-12-19

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Abstract

The invention discloses a method for producing the lattice points of a diffusion plate of a light-emitting diode (LED) backlight module, which comprises the following steps of simulating an LED light distribution curve; obtaining the illuminance of the diffusion plate according to the LED light distribution curve; generating the density distribution function of the lattice points according to the illuminance and transmittance of the diffusion plate; and adopting a macroprogram visual basic for application (VBA) development tool to generate the area distribution of the lattice points. The invention further discloses a device for producing the lattice points of the diffusion plate of the LED backlight module. Through the method and the device for producing the lattice points of the diffusion plate of the LED backlight module, the development speed of a light guide plate can be improved, and the development cost of the light guide plate is saved.
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Description

technical field

[0001] The invention relates to the technical field of liquid crystal displays, in particular to a method and a device for generating dots on a diffuser plate of an LED backlight module. Background technique

[0002] As we all know, in a traditional direct-lit LED (Light Emitting Diode, light emitting diode) backlight module, the LED light source is located at the bottom of the backlight structure. After the reaction of the reflective film, the light is emitted upwards, and after a certain space mixing distance, the light is modulated by an optical film such as a diffusion plate to emit light. Therefore, the thickness of each optical component and the spatial light mixing distance required by the LED determine the overall thickness of the backlight module. In particular, the light source and the required light mixing distance increase the thickness of the backlight structure, making the appearance and structure of an LCD (Liquid Crystal Display, liquid cryst...

Claims

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