CN101281322A - Backlight module as well as television set using the same - Google Patents
Backlight module as well as television set using the same Download PDFInfo
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- CN101281322A CN101281322A CNA2008100153317A CN200810015331A CN101281322A CN 101281322 A CN101281322 A CN 101281322A CN A2008100153317 A CNA2008100153317 A CN A2008100153317A CN 200810015331 A CN200810015331 A CN 200810015331A CN 101281322 A CN101281322 A CN 101281322A
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- led light
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- light source
- display panel
- diffuser plate
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Abstract
The invention discloses a backlight module and a television applying the backlight module. The backlight module comprises a display panel for receiving light and displaying image, a LED light source for emitting LED light, a diffusion plate arranged between the LED light source and the display panel for diffusing the light ray of LED light source to the display panel. The diffusion plate is further provided with a website which is corresponding to each LED of the LED light source.
Description
Technical field
The present invention relates to a kind of module backlight and use the televisor of described module backlight.
Background technology
Popular at present lcd technology comprises that LED (Light Emitting Diode, light emitting diode) demonstration backlight and OLED (Organic Light Emitting Display, organic light emitting display) show.
LED-backlit shows because LED adopts light emitting diode as back light, and the colour gamut broader than OLED and cold cathode fluorescent lamp display technique, higher color saturation and longer serviceable life can be provided.
In LED-backlit showed, the technology of most critical was the research and development of liquid crystal module.Liquid crystal module comprises display panel and back light unit.Back light unit sends uniform face light, and light passes in our eyes by liquid crystal display.The effect of display panel is exactly according to pixels these light to be handled, with display image.
But the light of incident display panel is evenly distributed, and is the problem that the prior art personnel deliberately will solve.Chinese patent CN200610061562.2 has proposed a kind of module backlight, by on its light guide plate, adopt the mode that a plurality of V-arrangement microstructures are set on the bottom surface, and make two inclined-planes forming this V-arrangement bit architecture be identical angle with this bottom surface respectively, transmit along set direction with the light of control through light guide plate.In addition two inclined-planes by controlling this V-arrangement microstructure and bottom surface angular range be 45 degree to 55 degree, control light in the reflection of bottom surface and the refraction of emergent ray, improve light intensity and luminous uniformity coefficient.At the disclosed module backlight of this patent file because two inclined-planes and the bottom surface angular range of a plurality of V-arrangement microstructures and strict this V-arrangement microstructure of control are set on will the bottom surface in light guide plate, this brings obstacle can for ultra-thinization of module size, and because the specific (special) requirements of its V structure brings obstruction also can for the industrialization of liquid crystal module.
Summary of the invention
An object of the present invention is to provide a kind of equally distributed module backlight of light that makes the incident display panel.
For addressing the above problem, the present invention by the following technical solutions:
First aspect the invention provides a kind of module backlight, comprises display panel, is used for receiving light, and display image; Described module backlight also comprises: led light source is used for sending LED light; Diffuser plate is arranged between led light source and the display panel, is used for making the divergence of beam of led light source to display panel; Also be provided with the site on the described diffuser plate, described site is corresponding one by one with every LEDs of led light source.
Above-mentioned site with the site of centre greatly, on every side the little mode in site is distributed on the diffuser plate.
Above-mentioned site is to be distributed on the diffuser plate from being dense to sparse mode gradually from inside to outside.
Above-mentioned site be shaped as square, ellipse, circle, star or irregular closed curve shape.
Above-mentioned module backlight also comprises: reflecting plate, and described led light source is arranged on the reflecting plate; BEF is arranged between display panel and the diffuser plate, is used for increasing the brightness of light; Described display panel is a LCDs.
Second aspect, the present invention also provides a kind of televisor, comprising: led light source drives, and is used for receiving and the processing TV signal, and generates the led light source drive signal; Led light source receives the drive signal that drives from led light source, and sends LED light according to the drive signal that receives; Display panel is used for receiving the light of led light source and display image; Diffuser plate is arranged between led light source and the display panel, is used for making the divergence of beam of led light source to display panel; Also be provided with the site on the described diffuser plate, described site is corresponding one by one with every LEDs of led light source.
Above-mentioned site with the site of centre greatly, on every side the little mode in site is distributed on the diffuser plate.
Above-mentioned site is to be distributed on the diffuser plate from being dense to sparse mode gradually from inside to outside.
Above-mentioned site be shaped as square, ellipse, circle, star or irregular closed curve shape.
Above-mentioned module backlight also comprises: reflecting plate, and described led light source is arranged on the reflecting plate; BEF is arranged between display panel and the diffuser plate, is used for increasing the brightness of light; Described display panel is a LCDs.
The present invention is provided with the site by place corresponding with LED on diffuser plate, thereby has reached the equally distributed purpose of light that makes from led light source incident display panel.The present invention is described in detail below in conjunction with accompanying drawing, and these and other purpose of the present invention, feature, aspect and advantage will become more obvious.
Description of drawings
Fig. 1 is the structural representation of the present invention module embodiment backlight;
Fig. 2 is the structural representation of the present invention's module backlight site embodiment 1;
Fig. 3 is the structural representation of site embodiment 2 of the present invention;
Fig. 4 is the structural representation of site embodiment 3 of the present invention.
Embodiment
In order to make those skilled in the art person understand the present invention program better, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with embodiment and embodiment accompanying drawing.
With reference to figure 1, be the structural representation of the present invention module embodiment backlight, module backlight comprises led light source 1, reflecting plate 2, diffuser plate 3, BEF4 and display panel 5.A plurality of led light sources 1 are arranged on the reflecting plate 2.Led light source 1 adopts light emitting diode as back light.Reflecting plate 2 can guarantee the light of led light source 1 is conducted to display panel 5.The total reflectivity of described reflecting plate 2 is more than 550nm reaches.Described reflecting plate can be a base material by aluminium, applies chemical conversion in the inside and outside both sides of aluminium base respectively and handles overlay film, handles the resin coating that applies one deck highly reflective on the overlay film again in the chemical conversion of inboard.Make reflecting plate 2 have highly reflective.On the chemical conversion processing overlay film in the outside, apply a floor height exothermicity coating resin epithelium again.Make reflecting plate 2 owing to have high exothermicity and high-fire resistance.
Display panel 5 is a display panels.Be provided with diffuser plate 3 between led light source 1 and display panel, diffuser plate 3 is used for making light evenly to disperse.Diffuser plate 3 needs water-intake rate and the lower material of thermotolerance, as acrylic plate, PC plate, organic glass or plastics etc.Diffuser plate 3 is provided with site 6, further strengthens the effect of divergence of beam.As shown in Figure 2, site 6 be arranged on every LEDs directly on the corresponding diffuser plate 3.
The present invention can realize reducing the light mixing distance of LED and make light reach the purpose of even scattering by the emulation of optical simulation software.For example set between LED lamp in the led light source and the lamp and under the situation that spacing is certain between LED lamp and the diffuser plate, carry out analog simulation by the size and the arranging of site 6 that change site 6 on the diffuser plate 3, observe the brightness uniformity data of waiting until from Thesimulation result, arranging on diffuser plate 3 carried out analog simulation up to obtaining satisfied result by continuous change site 6 sizes and site 6; Suppose in addition under 6 sizes of site on spacing between LED lamp and the lamp and the diffuser plate 3 and the constant situation of arranging, constantly change LED lamp and the spacing that has between the diffuser plate 3 that designs the site, carry out continuous analog simulation, find the spacing an of the best can realize that display brightness is even at last.As long as two steps above repeating after the spacing that changes between LED lamp and the lamp are carried out analog simulation optimization and are found between corresponding different lamp and the lamp spacing between arranging of site 6 sizes and site 6 on the diffuser plate 3 corresponding under the spacer conditions and LED lamp and the diffuser plate 3 at last.
The site of the distribution of site in the middle of taking greatly on diffuser plate, site on every side is little and from inside to outside the site gradually from being dense to sparse distribution rule.As shown in Figure 3, Figure 4.Light is evenly spread.The distribution shape of site can be square, ellipse, circle, star and irregular closed curve shape on diffuser plate.The present invention not only reaches the equally distributed purpose of light of led light source incident display panel in addition, and owing to shape and design to site 6, makes that entire module can be owing to the LED light mixing distance must enough could make size very big by even mixed light greatly.The invention enables the attenuation greatly of entire module size.
Be provided with BEF4 between display panel 5 and the diffuser plate 3.BEF4 is a prismatic lens, can further increase the brightness of light.
The invention allows for a kind of video-unit, be used for receiving outside vision signal and being presented on the display device.Below will introduce liquid crystal TV set in detail as an embodiment of video-unit according to the present invention.This liquid crystal TV set comprises that led light source drives, and is used for received television signal, and carries out signal Processing, generates the led light source drive signal.Led light source receives the drive signal that drives from led light source, and sends LED light according to the drive signal that receives.Led light source is made up of a plurality of LED light emitting diodes, and as the back light of televisor.Led light source can be arranged on the reflecting plate 2.Reflecting plate 2 can guarantee the light of led light source 1 is conducted to display panel 5.The total reflectivity of described reflecting plate 2 is more than 550nm reaches.Described reflecting plate can be a base material by aluminium, applies chemical conversion in the inside and outside both sides of aluminium base respectively and handles overlay film, handles the resin coating that applies one deck highly reflective on the overlay film again in the chemical conversion of inboard.Make reflecting plate 2 have highly reflective.On the chemical conversion processing overlay film in the outside, apply a floor height exothermicity coating resin epithelium again.Make reflecting plate 2 owing to have high exothermicity and high-fire resistance.Display panel is used for receiving the light of led light source, and display image.Display panel can be display panels.
Diffuser plate is arranged between led light source and the display panel, is used for making the divergence of beam of led light source to display panel.Diffuser plate needs water-intake rate and the lower material of thermotolerance, as acrylic plate, PC plate, organic glass or plastics etc.Diffuser plate is provided with the site, further strengthens the effect of divergence of beam.The site be arranged on every LEDs directly on the corresponding diffuser plate.
The present invention can realize reducing the light mixing distance of LED and make light reach the purpose of even scattering by the emulation of optical simulation software.For example set between LED lamp in the led light source and the lamp and under the situation that spacing is certain between LED lamp and the diffuser plate, carry out analog simulation by the size and the arranging of site 6 that change site 6 on the diffuser plate 3, observe the brightness uniformity data of waiting until from Thesimulation result, arranging on diffuser plate 3 carried out analog simulation up to obtaining satisfied result by continuous change site 6 sizes and site 6; Suppose in addition under 6 sizes of site on spacing between LED lamp and the lamp and the diffuser plate 3 and the constant situation of arranging, constantly change LED lamp and the spacing that has between the diffuser plate 3 that designs the site, carry out continuous analog simulation, find the spacing an of the best can realize that display brightness is even at last.As long as two steps above repeating after the spacing that changes between LED lamp and the lamp are carried out analog simulation optimization and are found between corresponding different lamp and the lamp spacing between arranging of site 6 sizes and site 6 on the diffuser plate 3 corresponding under the spacer conditions and LED lamp and the diffuser plate 3 at last.
The site of the distribution of site in the middle of taking greatly on diffuser plate, site on every side is little and from inside to outside the site gradually from being dense to sparse distribution rule.Light is evenly spread.The distribution shape of site can be square, ellipse, circle, star and irregular closed curve shape on diffuser plate.
The above only is the specific embodiment of the present invention, and the present invention can also be applied in other video display apparatus, as computer display device, digital photo frame display device, handset displays equipment etc.Protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses, and the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (10)
1, a kind of module backlight comprises display panel, is used for receiving light, and display image; Described module backlight also comprises:
Led light source is used for sending LED light;
Diffuser plate is arranged between led light source and the display panel, is used for making the divergence of beam of led light source to display panel; Also be provided with the site on the described diffuser plate, described site is corresponding one by one with every LEDs of led light source.
2, module backlight according to claim 1 is characterized in that: described site with the site of centre greatly, on every side the little mode in site is distributed on the diffuser plate.
3, module backlight according to claim 1 and 2 is characterized in that: described site is to be distributed on the diffuser plate from being dense to sparse mode gradually from inside to outside.
4, module backlight according to claim 3 is characterized in that: described site be shaped as square, ellipse, circle, star or irregular closed curve shape.
5, module backlight according to claim 4 is characterized in that: described module backlight also comprises: reflecting plate, and described led light source is arranged on the reflecting plate;
BEF is arranged between display panel and the diffuser plate, is used for increasing the brightness of light;
Described display panel is a LCDs.
6, a kind of application rights requires the televisor of 1 described module backlight, comprising:
Led light source drives, and is used for receiving and the processing TV signal, and generates the led light source drive signal;
Led light source receives the drive signal that drives from led light source, and sends LED light according to the drive signal that receives;
Display panel is used for receiving the light of led light source and display image;
Diffuser plate is arranged between led light source and the display panel, is used for making the divergence of beam of led light source to display panel; Also be provided with the site on the described diffuser plate, described site is corresponding one by one with every LEDs of led light source.
7, televisor according to claim 6 is characterized in that: described site with the site of centre greatly, on every side the little mode in site is distributed on the diffuser plate.
8, televisor according to claim 7 is characterized in that: described site is to be distributed on the diffuser plate from being dense to sparse mode gradually from inside to outside.
9, according to the arbitrary described televisor of claim 6 to 8, it is characterized in that: described site be shaped as square, ellipse, circle, star or irregular closed curve shape.
10, televisor according to claim 9 is characterized in that: described module backlight also comprises:
Reflecting plate, described led light source is arranged on the reflecting plate;
BEF is arranged between display panel and the diffuser plate, is used for increasing the brightness of light;
Described display panel is a LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100153317A CN101281322A (en) | 2008-04-11 | 2008-04-11 | Backlight module as well as television set using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100153317A CN101281322A (en) | 2008-04-11 | 2008-04-11 | Backlight module as well as television set using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101281322A true CN101281322A (en) | 2008-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100153317A Pending CN101281322A (en) | 2008-04-11 | 2008-04-11 | Backlight module as well as television set using the same |
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| Country | Link |
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| CN (1) | CN101281322A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103958957A (en) * | 2011-12-12 | 2014-07-30 | 夏普株式会社 | Illumination device, display device, and television receiving device |
| CN104964202A (en) * | 2015-04-09 | 2015-10-07 | 友达光电股份有限公司 | Backlight module |
| CN106501994A (en) * | 2015-09-08 | 2017-03-15 | 青岛海信电器股份有限公司 | A kind of quantum dot light emitting device, backlight module and display device |
| CN107703678A (en) * | 2017-09-11 | 2018-02-16 | 青岛海信电器股份有限公司 | A kind of down straight aphototropism mode set and display device |
| CN113687537A (en) * | 2021-08-02 | 2021-11-23 | 武汉华星光电技术有限公司 | Display back plate, preparation method thereof and display device |
-
2008
- 2008-04-11 CN CNA2008100153317A patent/CN101281322A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103958957A (en) * | 2011-12-12 | 2014-07-30 | 夏普株式会社 | Illumination device, display device, and television receiving device |
| CN104964202A (en) * | 2015-04-09 | 2015-10-07 | 友达光电股份有限公司 | Backlight module |
| US10394077B2 (en) | 2015-04-09 | 2019-08-27 | Au Optronics Corporation | Backlight module |
| CN106501994A (en) * | 2015-09-08 | 2017-03-15 | 青岛海信电器股份有限公司 | A kind of quantum dot light emitting device, backlight module and display device |
| CN106501994B (en) * | 2015-09-08 | 2021-10-29 | 青岛海信电器股份有限公司 | Quantum dot light-emitting device, backlight module and display device |
| CN107703678A (en) * | 2017-09-11 | 2018-02-16 | 青岛海信电器股份有限公司 | A kind of down straight aphototropism mode set and display device |
| CN113687537A (en) * | 2021-08-02 | 2021-11-23 | 武汉华星光电技术有限公司 | Display back plate, preparation method thereof and display device |
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Open date: 20081008 |