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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

Active Publication Date: 2012-12-19
创维集团智能科技有限公司
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  • Abstract
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Problems solved by technology

[0003] The main purpose of the present invention is to provide a method for generating dots on the diffusion plate of the LED backlight module, aiming at solving the technical problem of high open cost in the prior art

Method used

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

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Embodiment Construction

[0068] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0069] refer to figure 1 , the present invention provides a diffusion plate dot generation device for an LED backlight module, which includes:

[0070] LED light intensity simulation module 10, for simulating LED light intensity distribution curve;

[0071] The diffusion plate illuminance acquisition module 20 is configured to acquire the illuminance of the diffusion plate according to the LED light intensity distribution curve;

[0072] Density distribution function generation module 30, for generating the density distribution function of dots according to the illuminance distribution of the diffusion plate and the transmittance of the diffusion plate;

[0073] The dot distribution generating module 40 is used to generate the regional distribution of dots by using a macro program VBA development tool.

[0074] The...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/08F21Y101/02
Inventor 舒畅
Owner 创维集团智能科技有限公司
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