Unlock instant, AI-driven research and patent intelligence for your innovation.

Back light board design method based on CPC array and refracting-reflecting free curved surface

A design method and backlight technology, applied in optics, optical components, nonlinear optics, etc., can solve the problems of poor portability, high brightness, high temperature, etc., reduce the loss of light energy, increase the brightness of LCD, and improve the uniformity Effect

Inactive Publication Date: 2007-10-10
ZHEJIANG UNIV
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct type has high brightness, simple design and good lighting uniformity, but the disadvantages are high temperature, high energy consumption, large thickness and poor portability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Back light board design method based on CPC array and refracting-reflecting free curved surface
  • Back light board design method based on CPC array and refracting-reflecting free curved surface
  • Back light board design method based on CPC array and refracting-reflecting free curved surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The invention is a design method and application of a thin backlight plate based on a CPC array and a refraction free-form surface. Full utilization of the light energy of the light source and uniform illumination of the LCD device above the backlight unit are realized. The entire backlight unit includes a light source S, a backlight panel P1, a brightness enhancement film P2 and a diffusion film P3.

[0053] As shown in Figure 1, the top of the thin backlight panel P1 based on the CPC array and the catadioptric free-form surface is a micro-CPC array, wherein the entrance of each CPC is a refraction free-form surface, and the bottom surface P11 of the backlight panel P1 is a reflective free-form surface. And plated full reflection film. Its side P12 is the incident surface of the light source. The non-light incident part on the side of the backlight panel P1 is coated with a total reflection film. Determine the basic parameters of the length, width and height of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for designing back light board based on CPC array and refracting-reflecting free curved surface includes confirming length and height as well as with of back light board, applying maximum packing parameter to confirm light energy distribution at entrance of CPC, applying structure parameter of back light board to confirm structure parameter of CPC, applying said light energy distribution and luminous character of light source to confirm refracting-reflecting free curved surface at entrance of CPC, applying confirming parameters to decide reflection free curved surface of bottom surface on back light board and plating total reflection film on bottom surface of back light board.

Description

technical field [0001] The invention belongs to the field of optical technology and lighting technology, and in particular relates to a design method and application of a backlight panel based on a CPC array and a catadioptric free-form surface. Background technique [0002] Compared with CRT monitors, LCD monitors inherently have many advantages such as zero radiation, low energy consumption, small heat dissipation, slim and light weight, accurate image reproduction, and sharp display characters. With the continuous development of liquid crystal display technology and the gradual reduction of costs, liquid crystal displays have gradually engulfed the original CRT market. In recent years, LCD display has become more widely used, and as a display screen of mobile portable electronic products such as mobile phones, it is developing rapidly in the direction of ultra-thin and high-brightness. [0003] The liquid crystal material itself does not emit light, and needs a backlight...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02B27/00G02F1/13357G02F1/1335
Inventor 武江郑臻荣刘旭顾培夫李海峰陆巍
Owner ZHEJIANG UNIV