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

LED arrangement method of four-primary-color LED backlight

A four-primary-color, backlight technology, applied in semiconductor devices, optics, light sources, etc. uniform effect

Inactive Publication Date: 2009-02-11
BEIJING JUSHU DIGITAL TECH DEV
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

from figure 2 It can be seen that the first row and the first column of the matrix only contain R LEDs and G LEDs, but not B LEDs; the eighth row and eighth column of the matrix only contain G LEDs and B LEDs, but not R LEDs. LEDs, therefore create problems with uneven light mixing at the edge of the matrix, resulting in uneven brightness and chromaticity deviation

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
  • LED arrangement method of four-primary-color LED backlight
  • LED arrangement method of four-primary-color LED backlight
  • LED arrangement method of four-primary-color LED backlight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] Refer to attached picture image 3 and Figure 4 , The invention provides an LED arrangement method for four-primary-color LED backlights, which mixes white light based on the four-primary colors. The first LED, the second LED, the third LED and the fourth LED are arranged into a minimum matrix unit of 4×4, and the number ratio of the first LED, the second LED, the third LED and the fourth LED is: 1: 1:1:1. The first LED, the second LED, the third LED and the fourth LED can be arbitrarily arranged in any position of the smallest matrix unit of 4×4, and each row and each column have the first LED, the second LED LED, third LED and fourth LED.

[0036] The three LEDs are red LEDs, blue LEDs and green LEDs in various combinations. For example, the first LED, the second LED, and the third LED can be red LEDs, blue LEDs, and green LEDs, or red LEDs. , green LE...

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

The invention relates to a LED arrangement method for a four-fundamental-color LED backlight, which includes first LEDs, second LEDs, third LEDs and fourth LEDs, wherein, the first LEDs, the second LEDs, the third LEDs and the fourth LEDs are arranged into a minimum matrix unit in the manner of multiplying 4 by 4; the number ratio of the first LEDs, the second LEDs, the third LEDs and the fourth LEDs is 1:1:1:1; and every row and every line are respectively provided with the first LEDs, the second LEDs, the third LEDs and the fourth LEDs. A, B, C and D respectively represent the first LEDs, the second LEDs, the third LEDs and the fourth LEDs.

Description

【Technical field】 [0001] The present invention relates to a method for arranging light emitting diodes (LEDs), and in particular to a method for arranging light emitting diodes used in liquid crystal display devices. 【Background technique】 [0002] Since the LCD display device has the advantages of light weight, small thickness, low power consumption, etc., the application range of the LCD display device is becoming wider and wider. The LCD itself does not emit light, and the LCD display device using the LCD must use a certain light source as a backlight to display images. Light sources used as backlights for LCD display devices generally include CCFLs, FFLs, and LEDs. Compared with CCFL and FFL backlights, due to the advantages of long life, low power consumption and no pollution of LEDs, more and more LEDs are used as backlights in LCD display device backlight applications in recent years. [0003] LEDs used to generate backlights for LCD display devices are generally wh...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357F21V19/00F21Y101/02G02F1/1335F21Y115/10
Inventor 商松杨雷吕平
Owner BEIJING JUSHU DIGITAL TECH DEV