CN102253530A

CN102253530A - Novel full-color liquid crystal display (LCD) device

Info

Publication number: CN102253530A
Application number: CN2011102325080A
Authority: CN
Inventors: 林韡; 杜振宇; 李丽梅
Original assignee: TPV Display Technology Xiamen Co Ltd
Current assignee: TPV Display Technology Xiamen Co Ltd
Priority date: 2011-08-12
Filing date: 2011-08-12
Publication date: 2011-11-23

Abstract

The invention discloses a novel full-color liquid crystal display (LCD) device which comprises a trichromatic LED (light-emitting diode) light source, a light-conducting module, and an LCD panel without a color filter film, wherein the light-conducting module comprises a light conductor, a light inlet end and a light emitting surface; the trichromatic LED light source is arranged at the light inlet end of the light-conducting module; the LCD panel is arranged above the light emitting surface of the light-conducting module; the light emitting surface is provided with light emitting grids; and the light emitting grids are in one-to-one correspondence with sub-pixels on the LCD panel. When the technical scheme disclosed by the invention is adopted, through carrying out light conducting by an optical fiber module in the light-conducting module, the monochromatic light components output by the trichromatic LED light source are separately conducted to each corresponding sub-pixel of the LCD panel so as to achieve the effect of directly taking the trichromatic light as full-color displayed pixels; and because no color filter is required to be arranged on the LCD panel, the production cost of products is reduced, and the utilization rate of the light source is improved. Through taking the trichromatic LED light source as the light source of the LCD device, the colour gamut of the LCD device can reach up to about 95%, thereby improving the color gamut.

Description

Novel full-color liquid crystal indicator

Technical field

The present invention relates to the luminous liquid crystal indicator of inactive mode, particularly relate to a kind of novel full-color liquid crystal indicator.

Background technology

At present, the liquid crystal indicator for example used of flat-panel screens adopts the TFT(Thin Film Transistor (TFT) more)-the LCD technology.TFT-LCD is the luminous demonstration of inactive mode, usually by white light module backlight (Backlight Module) as light source, uniform system brightness is provided, and the color filter film (Color Filter) that sees through the TFT-LCD liquid crystal panel again obtains abundant colors and shows.There is following shortcoming in this liquid crystal indicator: one, the white light LEDs of existing white light module application backlight mainly is by blue-light LED chip encapsulation gold-tinted fluorescent powder, sends white light after lighting, and its colour gamut only is about 70%; Two, be provided with color filter film in the liquid crystal panel, the cost of color filter film accounts for 24% of liquid crystal indicator cost, and the manufacturing process complexity; Three, the penetrance of color filter film has only 33%, reduces the utilization factor of light source greatly.

Simultaneously, the full-color demonstration of LED at present is primarily aimed at the outdoor large advertisement screen and uses, mainly be to realize full-color demonstration by a large amount of primitive colours LEDs and each pixel are corresponding one by one, because each pixel all need be provided with a LED lamp and a driving, so this method cost costliness, and be difficult on the liquid crystal display that many pixels such as LCD TV, watch-dog, high image quality require, realize.

Summary of the invention

In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of is light source with the primitive colours LED, and cost is low, realizes the novel full-color liquid crystal indicator of full-color demonstration.

The novel full-color liquid crystal indicator of the present invention, it comprises the liquid crystal panel of primitive colours LED light source, light guide module and netrual colour filter coating, light guide module comprises that light conductor, light import end and exiting surface, the light that the primitive colours LED light source is arranged at light guide module imports end, liquid crystal panel is arranged at the exiting surface top of light guide module, exiting surface is provided with the bright dipping lattice, the bright dipping lattice are corresponding one by one with sub-pixel on the liquid crystal panel, the light of primitive colours LED light source imports end from light and enters, and enters liquid crystal panel through light conductor from the bright dipping lattice of exiting surface.

Described primitive colours LED light source embeds or the light of external light guide module imports end, when the light of the external light guide module of primitive colours LED light source imports end, is provided with external cable between primitive colours LED light source and light guide module.

Described primitive colours LED light source is the monochromatic LED lamp of three kinds of different colours, and it comprises ruddiness R LED, green glow G LED and blue light B LED.

Described light conductor is an optical fiber module module, and optical fiber module module one end is that light imports end, and the other end is the bright dipping lattice.

Comprise ruddiness, blue light, green glow optical fiber in the described optical fiber module, the distributing order of the optical fiber of its three kinds of colors is consistent with the distributing order of the sub-pixel of liquid crystal panel.The corresponding ruddiness of each bright dipping lattice, blue light or green glow optical fiber constitute a sub-pixel, promptly directly form pixel by the Red Green Blue light source.

Adopt technical scheme of the present invention, the monochromatic light component of primitive colours LED light source output is conducted to each corresponding sub-pixel of liquid crystal panel by the optical fiber module leaded light in the light guide module, realization with primaries directly as the pixel of full-color demonstration, need not to be provided with colored filter on the liquid crystal panel, reduce production cost of products, improved the light source utilization factor.As light source, its colour gamut can reach about 95%, has improved colour gamut with the primitive colours LED light source.

Description of drawings

The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:

Fig. 1 is the structural representation of the novel full-color liquid crystal indicator of the present invention;

Fig. 2 is the orderly structure arranged synoptic diagram of optical fiber module in the light guide module of the present invention;

Fig. 3 is the embedded structural representation that is connected with light guide module of primitive colours LED light source of the present invention.

Embodiment

Shown in one of Fig. 1-3, the present invention includes the liquid crystal panel 3 of primitive colours LED light source 1, light guide module 2 and netrual colour filter coating, light guide module 2 comprises that light conductor 21, light import end 22 and exiting surface 23, the light that primitive colours LED light source 1 is arranged at light guide module 2 imports end 22, liquid crystal panel 3 is arranged at exiting surface 23 tops of light guide module 2, exiting surface 23 is provided with the bright dipping lattice, the bright dipping lattice are corresponding one by one with sub-pixel 4 on the liquid crystal panel 3, the light of primitive colours LED light source 1 imports end 22 from light and enters, and enters liquid crystal panel 3 through light conductor 21 from the bright dipping lattice of exiting surface 23.

As Fig. 1 or shown in Figure 3, described primitive colours LED light source 1 embeds or the light of external light guide module 2 imports end 22, and when the light importing of primitive colours LED light source 1 external light guide module 2 held 22,2 of primitive colours LED light source 1 and light guide modules were provided with external cable.Primitive colours LED light source 1 imports end 22 by the light that external cable imports light guide module 2, carries out beam split and leaded light by light guide module 2 internal optical fiber modules again, and primitive colours LED light source 1 is unrestricted with light guide module 2 relative positions like this.

Described primitive colours LED light source 1 is the monochromatic LED lamp of three kinds of different colours, and it comprises ruddiness R LED, green glow G LED and blue light B LED.

Described light conductor 21 is the optical fiber module, and optical fiber module one end is that light imports end 22, and the other end is bright dipping lattice 23.Optical fiber module 21 realizes that by orderly winding light source imports end 22 from light and enters, and derives from bright dipping lattice 23.

As shown in Figure 2, described optical fiber module 21 comprises ruddiness, blue light, green glow optical fiber, and the distributing order of the optical fiber of its three kinds of colors is consistent with the distributing order of the sub-pixel 4 of liquid crystal panel 3.The corresponding ruddiness of each bright dipping lattice, blue light or green glow optical fiber constitute a sub-pixel 4, promptly directly form pixel by the Red Green Blue light source.

Adopt structure of the present invention, the light of primitive colours LED light source 1 enters from the light importing end 22 of light guide module 2, through light guide module 2 inner corresponding 21 beam split of optical fiber module and leaded lights, derive from the bright dipping lattice of light guide module 2 exiting surfaces 23, because the bright dipping lattice are corresponding one by one with sub-pixel 4 in the liquid crystal panel 3, so need not to be provided with color filter film on the liquid crystal panel 3, can on liquid crystal panel 3, realize the full-color demonstration of LED like this.

Claims

1. novel full-color liquid crystal indicator, it is characterized in that: it comprises the liquid crystal panel of primitive colours LED light source, light guide module and netrual colour filter coating, light guide module comprises that light conductor, light import end and exiting surface, the light that the primitive colours LED light source is arranged at light guide module imports end, liquid crystal panel is arranged at the exiting surface top of light guide module, exiting surface is provided with the bright dipping lattice, the bright dipping lattice are corresponding one by one with sub-pixel on the liquid crystal panel, the light of primitive colours LED light source imports end from light and enters, and enters liquid crystal panel through light conductor from the bright dipping lattice of exiting surface.

2. novel full-color liquid crystal indicator according to claim 1, it is characterized in that: described primitive colours LED light source embeds or the light of external light guide module imports end, when the light of the external light guide module of primitive colours LED light source imports end, be provided with external cable between primitive colours LED light source and light guide module.

3. novel full-color liquid crystal indicator according to claim 1 is characterized in that: described primitive colours LED light source is the monochromatic LED lamp of three kinds of different colours, and it comprises ruddiness R LED, green glow G LED and blue light B LED.

4. novel full-color liquid crystal indicator according to claim 1 is characterized in that: described light conductor is the optical fiber module, and optical fiber module one end is that light imports end, and the other end is the bright dipping lattice.

5. according to claim 3 or 4 described novel full-color liquid crystal indicators, it is characterized in that: described optical fiber module comprises ruddiness, blue light, green glow optical fiber, and the distributing order of the optical fiber of its three kinds of colors is consistent with the distributing order of the sub-pixel of liquid crystal panel.