CN101000431A

CN101000431A - Backlight resource module of liquid crystal display with luminous element array

Info

Publication number: CN101000431A
Application number: CN 200610000519
Authority: CN
Inventors: 廖登镇
Original assignee: JUHAO INDUSTRY Co Ltd
Current assignee: JUHAO INDUSTRY Co Ltd
Priority date: 2006-01-09
Filing date: 2006-01-09
Publication date: 2007-07-18

Abstract

A LCD backlight module with luminous element array is prepared as forming said luminous element array by multiple luminous element, forming light diffusion element array by multiple light diffusion element, setting said luminous elements and diffusion elements on base plate in matrix mode and corresponding each diffusion element to at least one luminous element for making light from luminous element be projected onto liquid crystal display module through said diffusion element.

Description

Backlight resource module of liquid crystal display with light-emitting device array

Technical field

The invention relates to a kind of backlight resource module of liquid crystal display, particularly about a kind of backlight resource module of liquid crystal display with light-emitting device array.

Background technology

At present LCD extensively applies among the various industry and commerce occasions such as family, company, and the LCD screen size that ordinary consumer is bought mostly is comparatively general with 32 cun or 42 cun.

And because the luminescence efficiency of the LCD MODULE of LCD is too low, so dealer big city uses higher fluorescent tube or the halogen lamp tube of luminescence efficiency to be used as the Backlight For Liquid Crystal Display Panels module.And, can make image energy that LCD MODULE shows by the light that backlight module provided when ray cast that backlight module produced during to LCD MODULE, look the image that this LCD MODULE demonstrates and visual person can be known see.And the gross thickness of general Backlight For Liquid Crystal Display Panels module can have been accomplished 30 millimeters thinness mostly.

As shown in Figure 1, it is the sectional drawing that shows the known backlight resource module of liquid crystal display with light-emitting device array.As shown in the figure, this LCD 100 includes a LCD MODULE 11, an optical filtering 12, a glass substrate 13, two light-

emitting component

14a, 14b and reflectors 15.This reflector 15 has trickle concaveconvex structure at the ray cast place that projects corresponding to light-

emitting component

14a, 14b, and the throw light that light-

emitting component

14a, 14b project can throw to LCD MODULE 11 by reflector 15 reflections and by optical filtering 12 and glass substrate 13, shows with the image with LCD MODULE 11.

Summary of the invention

Technical matters to be solved by this invention:

Industry mostly uses fluorescent tube or halogen lamp tube to be used as the light emitting source of backlight resource module of liquid crystal display at present, though but fluorescent tube and halogen lamp tube have higher luminous power and with low cost, but containing mercury in the fluorescent tube becomes branch to cause the pollution of environment, and shortcomings such as fluorescent tube has poor stability, upgrading space is narrow, the life-span is short, easy fault, halogen lamp tube then has various shortcoming such as power consumption is high, the lamp body temperature is too high, expensive price, spoilage height.

Given this, fundamental purpose of the present invention promptly provides a kind of LCD with light diffused component array, be in the Backlight For Liquid Crystal Display Panels module, to have a light diffused component array, this light diffused component array includes a plurality of light diffused components, throws LCD MODULE to LCD with light that the light-emitting component of backlight module is produced equably via each corresponding light diffused component.

Another object of the present invention promptly provides a kind of backlight module with light emitting diode, is to utilize at least one light emitting diode to be used as the light emitting source of backlight module.

The technological means that the present invention deals with problems:

The present invention is to include a LCD MODULE, a glass substrate, a diffusion sheet and a backlight module in a LCD for solving the technological means that prior art problems adopted.Described glass substrate is configured between described LCD MODULE and the backlight module, and described diffusion sheet is configured between described glass substrate and the backlight module.

Described backlight module includes a substrate, a light diffused component array and a light-emitting device array, and described light-emitting device array includes a plurality of light-emitting components, and described light diffused component array includes a plurality of light diffused components.Described light-emitting component and described light diffused component are to be arranged on the described substrate with the matrix kenel, and each light diffused component is to there being at least one light-emitting component, so that the light that this light-emitting component produced throws to LCD MODULE via the light diffused component of correspondence is even, demonstrate with image with LCD MODULE.

The present invention contrasts the effect of prior art:

Compared to prior art, the present invention utilizes a plurality of light emitting diodes to form the light-emitting device array of a backlight resource module of liquid crystal display, the method not only can solve in the past, and the backlight module of conventional liquid crystal mostly adopts fluorescent tube or halogen lamp tube as light-emitting component, thereby cause shortcomings such as environmental pollution, spoilage height, life-span be short, also have not mercurous, spotlight effect is remarkable, zero heating, shatter-proofly anti-ly fall, can be compatible with various advantages such as alterating and direct current, long service life.

The light that light emitting diode produces can throw light to LCD MODULE equably via the light diffused component of correspondence.And the light-emitting device array of backlight module more can be controlled the light on and off of light-emitting component by the signal of LCD MODULE itself, to save the generation of LCD power consumption.

Specific embodiment of the present invention will and attachedly be graphic and be further described by following embodiment.

Description of drawings

Fig. 1 shows the sectional drawing of the known backlight resource module of liquid crystal display with light-emitting device array;

Fig. 2 shows that the present invention has the sectional drawing of the backlight resource module of liquid crystal display preferred embodiment of light-emitting device array;

The light diffused component is arranged in stereographic map on the substrate with the matrix kenel in Fig. 3 displayed map 2;

Fig. 4 shows that light diffused component and light-emitting component are configured in the cross-sectional schematic on the substrate;

Fig. 5 shows the top view of single light diffused component;

Fig. 6 shows the light path route synoptic diagram of ray cast when the light diffused component that light-emitting component produces.

The primary clustering symbol description:

100 LCD

11 LCD MODULE

12 optical filterings

13 glass substrates

14a, 14b light-emitting component

15 reflectors

200 LCD

2 LCD MODULE

3 glass substrates

4 diffusion sheets

5 backlight modules

51 substrates

52 light-emitting device arrays

521,522,523 light-emitting components

53 light diffused component arrays

530 recessed spaces

531 light diffused components

L1, L2, L3 throw light

Embodiment

At first consult shown in Figure 2ly, it is to show that the present invention has the sectional drawing of the backlight resource module of liquid crystal display preferred embodiment of light-emitting device array.As shown in the figure, LCD 200 of the present invention includes a LCD MODULE 2, a glass substrate 3, a diffusion sheet 4 and a backlight module 5, and the light that backlight module 5 produces can throw to LCD MODULE 2.Glass substrate 3 is arranged between LCD MODULE 2 and the diffusion sheet 4, and diffusion sheet 4 is arranged between glass substrate 3 and the backlight module 5.

Backlight module 5 includes a substrate 51, a light-emitting device array 52 and a light diffused component array 53.Light-emitting device array 52 includes a plurality of light-emitting components 521,522,523, light-emitting component the 521,522, the 523rd is arranged on the substrate 51 with the matrix kenel, and light-emitting component 521,522,523 can be general known light emitting diode, or the element that can use other to be fit to according to the application of LCD 200.

Light diffused component array 53 includes a plurality of light diffused components 531 and is arranged on the substrate 51 with the matrix kenel, each light diffused component 531 is provided with a recessed space 530, and recessed space 530 is corresponding to light-emitting component 521,522,523, so that the light that light-emitting component 521,522,523 is produced throws via light diffused component 531, diffusion sheet 4 and glass substrate 3 to LCD MODULE 2, providing LCD MODULE 2 required light source, and the image of LCD MODULE 2 is shown.

Light diffused component 531 can be the three-dimensional contouring thing of any how much patterns, and it makes material and can be general known light transmission material (as plastics or acryl material etc.), or the material that can use other to be fit to according to the application of LCD.And the method for making of light diffused component 531 can adopt the mode of ejaculation to reach target cheaply.

Under the control of a control circuit (not shown), the picture of fluid,matching crystal display shows demand, and the open and close of each light-emitting component 521,522,523 of may command are to reduce LCD power consumption.And it is red, green and blue that light-emitting component 521,522,523 light that produced are respectively, and it more can change the quantity and the color of adjusting light of its configuration according to practical application.

Shown in the figure, a light diffused component 531 in the light diffused component array 53 is that correspondence contains and is placed on three light-emitting components 521,522,523.When practical application, light diffused component 531 also only correspondence contain and cover a light-emitting component, and light-emitting component is for sending the light-emitting component of white light.

The surface of diffusion sheet 4 has trickle light broken line structure, so that the throw light that light-emitting component 521,522,523 is projected via light diffused component 531 can increase the homogeneity of its visual angle and ray cast.

Consult shown in Figure 3ly, it is that the light diffused component is arranged in stereographic map on the substrate with the matrix kenel in the displayed map 2.Fig. 4 shows that light diffused component and light-emitting component are configured in the cross-sectional schematic on the substrate.Fig. 5 shows the top view of single light diffused component.Fig. 6 shows the course synoptic diagram of light in the light diffused component that light-emitting component produces.As shown in the figure, light-emitting component 521,522,523 is arranged on the substrate 51 with the matrix kenel, and is connected on the substrate 51 with the technical battery that known electronic component is welding.Light diffused component 531 places are concaved with a recessed space 530, and should be recessed into space 530 corresponding to light-emitting component 521,522,523, evenly project with throw light L1, L2, the L3 that light-emitting component 521,522,523 is produced.

When practical application, light diffused component 531 can directly be done atomizing and handle so that light-emitting component 521,522,523 throw lights that produced are more even, so can save the cost that uses diffusion sheet 4.And light diffused component array 53 is to multiply by the practical application that 24 light diffused component assembled arrangement are the best by 13.

By above narration as can be known, the present invention is that to utilize a plurality of light emitting diodes to be used as be the light emitting source of backlight arrangement 5 compared to prior art, the backlight module that this mode not only can solve conventional liquid crystal mostly uses fluorescent tube or halogen lamp tube to be used as luminous unit and causes environmental pollution, the spoilage height, shortcomings such as the life-span is short, more can utilize the picture signal of the display module of this LCD itself to control the bright of light emitting diode or go out, to save the consumption of power, allow the user when using the present invention to have the backlight resource module of liquid crystal display of light-emitting device array more environmental protection with convenient.

Above embodiment explanation only is preferred embodiment explanation of the present invention, and all people who is familiar with this technology can do other all improvement and variation according to the above embodiment of the present invention explanation.Yet all improvement and variation that these are done according to the embodiment of the invention all still belong in the claim of inventing spirit and defining of the present invention.

Claims

1. backlight resource module of liquid crystal display with light-emitting device array, be in a LCD, to dispose a LCD MODULE and a backlight module, the ray cast that this backlight module projects is to described LCD MODULE, it is characterized in that described backlight module includes a substrate, one light-emitting device array and a light diffused component array, described light-emitting device array includes a plurality of light-emitting components and is arranged on the described substrate with the matrix kenel, described light diffused component array includes a plurality of light diffused components and is arranged on the described substrate with the matrix kenel, and each light diffused component is corresponding at least one light-emitting component so that the light that described light-emitting component produced via the light diffused component projection of correspondence to described LCD MODULE.

2. the backlight resource module of liquid crystal display with light-emitting device array as claimed in claim 1 is characterized in that, the bottom of each light diffused component of described light diffused component array is concaved with a recessed space corresponding to the light-emitting component place.

3. the backlight resource module of liquid crystal display with light-emitting device array as claimed in claim 2 is characterized in that, the recessed space of described light diffused component is to should there being three light-emitting components, and the light of its generation is respectively red, green, blue.

4. the backlight resource module of liquid crystal display with light-emitting device array as claimed in claim 2 is characterized in that, the recessed space of described light diffused component is to should there being a light-emitting component, and light-emitting component is the light-emitting component that sends white light.

5. the backlight resource module of liquid crystal display with light-emitting device array as claimed in claim 1 is characterized in that described LCD includes a diffusion sheet, is arranged between described LCD MODULE and the described backlight module.