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Backlight and display device

A technology for display devices and backlight sources, which can be applied to electric light sources, light source fixing, lighting devices, etc., and can solve problems such as narrowness and narrow effective light-emitting area.

Inactive Publication Date: 2012-11-28
PIXTRONIX INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the past, since the mixing area of ​​all colors (in the above case, the three colors of red (R), green (G) and blue (B)) was narrow, there was an effective light emission in the backlight capable of such multi-color light emission. narrow area problem

Method used

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  • Backlight and display device
  • Backlight and display device
  • Backlight and display device

Examples

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Embodiment Construction

[0023] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a cross-sectional view showing an outline of a display device according to an embodiment of the present invention.

[0024] The display device has a pair of light-transmitting substrates 10 and 12 (for example, glass substrates). The pair of light-transmitting substrates 10 and 12 are disposed so as to face each other with a gap therebetween.

[0025] On one side of the light-transmitting substrate 10 ( figure 1 middle is the lower side) with figure 2 Shutter 14 is shown. The shutter 14 is a plate part having an actuation opening 16 . Light is transmitted through the driving opening 16 and light is blocked through the portion other than the driving opening 16 . The drive opening 16 has a shape that is long in one direction. In addition, if figure 1 As shown, light is supplied by a backlight 18 superimposed on the light-transmitting substrate 10 .

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PUM

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Abstract

It is an object of the invention to provide a backlight in which an effective light-emitting region where all colors are mixed is wide, and a display device including the backlight. Light sources (60) include a pair of first light sources (62) located at both ends in an arrangement direction and at least one second light source (64) located between the first light sources. Each of directions in which the first light sources (62) face is set so as to cross a direction in which the second light source (64) faces. Each of the first light sources (62) has more than three first light-emitting portions (66) arranged along a circumferential edge and emitting lights of more than three different colors. The at least one second light source (64) has more than three second light-emitting portions (68) arranged along the circumferential edge and emitting lights of more than three different colors. Light emitted by one of the first light-emitting portions (66) which is nearest to the more than three second light-emitting portions (68) is the same in color as light emitted by one of the second light-emitting portions (68) which is nearest to the more than three first light-emitting portions (66).

Description

technical field [0001] The invention relates to a backlight source and a display device. Background technique [0002] MEMS displays (Micro Electro Mechanical System Displays) are expected to replace liquid crystal displays (see Patent Document 1). Unlike the liquid crystal shutter type that uses polarized light, this display displays brightness and darkness by mechanically opening and closing the light transmission window with a shutter unit having a fixed opening and a shutter. Specifically, for example, light is blocked by arranging a shutter above the fixed opening, and light is transmitted by moving the shutter away from above the fixed opening. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2008-197668 [0004] A MEMS display uses a backlight that emits red (R), green (G) and blue (B) light in a field sequential manner. Specifically, by making three kinds of light-emitting diodes (LEDs) that emit red (R), green (G) and blue (B) light respectively face the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V8/00F21V19/00G02B26/02
CPCG02B6/0068G02B26/02G02B6/0073G02B6/0016B81B7/02
Inventor 渡部一史三船雅之宗吉恭彦安藤直久宫本光秀
Owner PIXTRONIX INC