CN2837889Y - Improved LCD backlight module structure - Google Patents
Improved LCD backlight module structure Download PDFInfo
- Publication number
- CN2837889Y CN2837889Y CN 200520103591 CN200520103591U CN2837889Y CN 2837889 Y CN2837889 Y CN 2837889Y CN 200520103591 CN200520103591 CN 200520103591 CN 200520103591 U CN200520103591 U CN 200520103591U CN 2837889 Y CN2837889 Y CN 2837889Y
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- China
- Prior art keywords
- diffuser plate
- liquid crystal
- backlight module
- crystal display
- leaded light
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Abstract
The utility model discloses an improved LCD backlight module structure, which comprises a diffuser plate, a reflecting film and a plurality of light guide beams, wherein the diffuser plate is stuck on the back side of a liquid crystal display panel; the reflecting film is arranged on the back side of the diffuser plate, and keeps proper distance from the diffuser plate; the light guide beams are directly or indirectly arranged between the diffuser plate and the reflecting film. Reflecting layers which are distributed in an arc shape are arranged on each light guide beam, and at least one light source body (a white light emitting diode LED) is respectively arranged on both ends of each light guide beam. Thus, light rays generated by the light source body can be guided via the reflecting layers in the light guide beams, and are evenly projected between the diffuser plate and the reflecting film; a part of light rays can directly penetrate the diffuser plate, and a part of light rays is reflected to the diffuser plate by the reflecting film. The light rays use the diffuser plate to be evenly distributed and form the backlight of the liquid crystal display panel.
Description
Technical field
The utility model relates to a kind of structure of improved liquid crystal display backlight module, and You Zhike produces the backlight modular structure of even and enough brightness.
Background technology
LCD (LCD) device mainly is to utilize a display panels and its to produce luminance difference between backlight, and can form the demonstration of literal, image, therefore, this quality backlight (brightness, even) has also directly influenced the demonstration image quality of this LCD integral body;
Traditional liquid crystal display backlight module structure has the dorsal part periphery that is uniformly distributed in display panels with a plurality of pointolite bodies (as: LED), utilizes the light of this pointolite body directly to form backlight in the display panels rear; Other has with the cold-cathode tube is the backlight modular structure of light source, and it utilizes cold-cathode tube to be arranged at display panels dorsal part edge, produces backlight in the mode of line source body.
Yet along with the LCD size constantly increases, above-mentioned traditional backlight modular structure has following disappearance on using:
1. because the brightness of cold-cathode tube and pointolite (white light-emitting diode LED) is limited, and all be to be distributed in the display panels periphery, when being applied to the large scale liquid crystal display panel, and can't produce enough brightness (briliancy) in the display panels centre with it.
2. the life-span of cold-cathode tube weak point must be changed, more not value-for-money often.
Because known liquid crystal display backlight module structure has above-mentioned shortcoming, the design people has the utility model to produce at the road of those shortcoming research improvement finally.
Summary of the invention
The purpose of this utility model is to provide a kind of structure of improved liquid crystal display backlight module, and it can produce even and preferable brightness, with effective lifting product competitiveness.
For reaching above-mentioned purpose, the utility model proposes a kind of structure of improved liquid crystal display backlight module, comprising: at least one diffuser plate, be attached at the display panels dorsal part, can effectively evenly disperse the light that penetrates; At least one reflectance coating is located at the dorsal part of aforementioned diffuser plate and is kept a suitable spacing; A plurality of leaded light posts are located between aforementioned diffuser plate, the reflectance coating, and this leaded light post more is provided with the reflection horizon that arc extends; A plurality of light source bodies, be located at this leaded light post two ends, the light that this light source body is produced can be injected in the aforementioned leaded light post, and be directed between diffuser plate, the reflectance coating via this reflection horizon, make this light directly or by the reflectance coating reflection penetrate diffuser plate and evenly diffusion, form the backlight of this display panels.
Preferably, these a plurality of leaded light posts are evenly being arranged between this diffuser plate, the reflectance coating of being parallel to each other.
Preferably, be provided with a light guide plate between this diffuser plate, the reflectance coating, and these a plurality of leaded light posts are to be arranged at this light guide plate periphery at least two offsides.
Preferably, this leaded light post is to be connected by two leaded light posts to form.
Preferably, this reflection horizon is to be shaped in this leaded light post, and it distributes with the expansion scope of 40 degree.
Preferably, this reflection horizon is to coat on this leaded light post with reflective coating, and it distributes with the expansion scope of 40 degree.
Preferably, this reflection horizon is to stick on this leaded light post with reflection tape, and it distributes with the expansion scope of 40 degree.
Preferably, this reflection horizon is to face the direction setting of diffuser plate.
Preferably, this reflection horizon is to face the direction setting of reflectance coating.
Preferably, these leaded light post two ends are provided with shrinkage pool.
Preferably, this light source body is a white light-emitting diode, and is to wear in the through hole that is fixed in default a plurality of equidistant arrangements on the substrate.
Preferably, establish a reflectance coating between this display panels, the diffuser plate in addition.
Preferably, establish a diffuser plate between this display panels, the reflectance coating in addition.
Preferably, establish a high light film between this display panels, the diffuser plate in addition.
Therefore, the utility model mainly is by diffuser plate, reflectance coating and plural leaded light post are formed, wherein this diffuser plate is to be attached at the display panels dorsal part, reflectance coating is to be located at the dorsal part of aforementioned diffuser plate and to keep a suitable spacing, a plurality of leaded light posts then are directly or indirectly to be arranged at aforementioned diffuser plate, between the reflectance coating, two ends in this leaded light post are respectively equipped with at least one light source body and the one-body molded reflection horizon that has arc to distribute in the leaded light post, the light that this light source body is produced can be guided via the refraction of this leaded light post internal reflection layer and be projeced into diffuser plate equably, between the reflectance coating, it can reflex to light this diffuser plate by this reflectance coating, and evenly disperse the light that penetrates by diffuser plate, this light then can directly or by the reflection of high light film penetrate diffuser plate, to form the backlight of this display panels.
Description of drawings
Fig. 1 is the structure decomposition map of the utility model first embodiment.
Fig. 2 is the combination appearance figure of the utility model first embodiment.
Fig. 3 is the combination side cutaway view of the utility model first embodiment.
Fig. 4 is the combination top plan view of the utility model first embodiment.
Fig. 5 is the combination top plan view of the utility model second embodiment.
Fig. 6 is the combination side cutaway view of the utility model the 3rd embodiment.
Fig. 7 is the structure decomposition map of the utility model the 4th embodiment.
Fig. 8 is the combination appearance figure of the utility model the 4th embodiment.
Fig. 9 is the structure decomposition map of the utility model the 5th embodiment.
Figure 10 is the combination appearance figure of the utility model the 5th embodiment.
Figure 11 is the structure decomposition map of the utility model the 6th embodiment.
Figure 12 is the combination appearance figure of the utility model the 6th embodiment.
Figure 13 is the combination front sectional elevation of the utility model the 6th embodiment.
Figure 14 is the structure decomposition map of the utility model the 7th embodiment.
Figure 15 is the combination appearance figure of the utility model the 7th embodiment.
Figure 16 is the combination front sectional elevation of the utility model the 7th embodiment.
Figure 17 is that the utility model sticks on the leaded light post to form the synoptic diagram in reflection horizon with reflection tape.
Figure 18 is the structure decomposition map of the utility model the 8th embodiment.
Figure 19 is the combination appearance figure of the utility model the 8th embodiment.
Figure 20 is the structure decomposition map of the utility model the 9th embodiment.
Figure 21 is the combination appearance figure of the utility model the 9th embodiment.
Description of reference numerals:
1,10.... diffuser plate 2,20.... reflectance coating
3,30,17.... leaded light post 31,301,171... reflection horizon
172..... reflection tape 32.... circular arc shrinkage pool
320... taper shrinkage pool 4..... light source body
41.... substrate 42.... through hole
5..... display panels 6..... light guide plate
7....... high light film
Embodiment
Fig. 1 is the structure decomposition map of the utility model first embodiment, and with reference to combination appearance figure and Fig. 3 of Fig. 2,4 combination side-looking and top plan view, can clearly find out, the utility model mainly comprises: diffuser plate 1, reflectance coating 2, parts such as leaded light post 3 and light source body 4, wherein this diffuser plate 1 is the dorsal part that is attached at default display panels 5, with the light that effectively evenly disperses to penetrate, reflectance coating 2 is to be located at the dorsal part of aforementioned diffuser plate 1 and to keep a suitable spacing, this reflectance coating 2 is commonly referred to as the material member of SOLF, its surface has splendid light reflecting effect, leaded light post 3 is arranged at two offsides of 2 of aforementioned diffuser plate 1 and reflectance coatings, it is the right cylinder made from the optical fiber material, has splendid leaded light efficient, be provided with reflection horizon 31 (distribution in this reflection horizon 31 is the best with the scope of 40 degree) in these leaded light post 3 one side edge integral shapes, and two ends in leaded light post 3 are respectively equipped with a circular arc shrinkage pool 32, light source body 4 is white light-emitting diode LED, can be for wearing in the through hole 42 that is fixed in default a plurality of equidistant arrangements on the substrate 41, and each light source body 4 can be stretched in the circular arc shrinkage pool 32 that embeds leaded light post 3 two ends, each leaded light post 3 can be set in parallel between aforementioned diffuser plate 1 and the reflectance coating 2, and form a firm combination.
In the present embodiment structure, this reflection horizon 31 is to face the direction setting of reflectance coating 2, therefore, the light that produces when light source body 4 is via the 3 high efficiency guidings of leaded light post, and after 31 irregular references of reflection horizon, refrangible 90 degree directions are projeced between diffuser plate 1 and the reflectance coating 2, its most of light can directly penetrate diffuser plate 1, small part light then penetrates this diffuser plate 1 by reflectance coating 2 reflections, utilizes this diffuser plate 1 evenly to disperse this light that penetrates and can form the backlight of this display panels 5.
Fig. 5 is the combination top plan view of the utility model second embodiment, shown in this figure, the utility model second embodiment is that two ends in this leaded light post 3 are respectively equipped with a taper shrinkage pool 320, can supply ccontaining light source body 4, it is all identical with aforementioned first embodiment in each architectural feature, seldom gives unnecessary details at this.
Fig. 6 is the combination side cutaway view of the utility model the 3rd embodiment, shown in this figure, in the present embodiment structure, this reflection horizon 31 is to face the direction setting of diffuser plate 1, therefore, after leaded light post 3 was with light refraction 90 degree, small part light can directly penetrate diffuser plate 1, most of light is then by reflectance coating 2 reflection and penetrate this diffuser plate 1, utilizes this diffuser plate 1 evenly to disperse this light that penetrates and can to form the display panels 5 of another form backlight.
Fig. 7, the 8th, structure decomposition map and the combination appearance figure of the utility model the 4th embodiment, shown in this two figure, the utility model the 4th embodiment is provided with a reflectance coating 20 in addition between the display panels 5 of aforementioned first embodiment and diffuser plate 1, can make light form repeatedly reflection and more even.
Fig. 9, the 10th, structure decomposition map and the combination appearance figure of the utility model the 5th embodiment, shown in this two figure, the utility model the 5th embodiment then is the basis that is configured to aforementioned the 4th embodiment, between this display panels 5 and this reflectance coating 20, establish a diffuser plate 10 in addition, make this light before being projected to display panels 5, can form better even effect again through the even diffusion of this diffuser plate 10.
Figure 11, the 12nd, structure decomposition map and the combination appearance figure of the utility model the 6th embodiment, by it with reference to shown in the combination front sectional elevation of Figure 13, the utility model the 6th embodiment is arranged between aforementioned diffuser plate 1 and the reflectance coating 2 with a sheet of light guide plate 6 as can be known, and being provided with leaded light post identical 3 and light source body 4 with aforementioned each embodiment in two side edges of this light guide plate 6, above-mentioned this light guide plate 6 has splendid leaded light efficient; When light source body 4 throws light in the leaded light post 3 by two ends, can reflex in the light guide plate 6 via reflection horizon 31, utilize this light guide plate 6 high efficiency guidings, can with ray cast between diffuser plate 1 and reflectance coating 2, form the backlight of this display panels 5.
Figure 14, the 15th, structure decomposition map and the combination appearance figure of the utility model the 7th embodiment, by it with reference to shown in the combination front sectional elevation of Figure 16, the utility model the 7th embodiment is the basis that is configured to aforementioned the 6th embodiment as can be known, except that being respectively equipped with the two leaded light posts 3 in two short side edges of this light guide plate 6, the upper and lower sides long in this light guide plate 6 then is provided with the two leaded light posts 30 that block in addition, in this leaded light post 30, be provided with reflection horizon 301, and the outer side in two leaded light posts 30 is provided with a light source body 4, utilize the reflection horizon 301 in this leaded light post 30 this can be stayed the light of light source body 4 to reflex in the light guide plate 6, and the reflection ray in this reflection horizon 301 is perpendicular with reflection horizon 31 reflection rays of light guide plate 6 two side leaded light posts 3, thereby forms more uniform effect backlight.
The design that is connected mutually with this two leaded lights post 30 in the present embodiment, it can effectively avoid single leaded light post 3 because of the long loss owing to the light conduction of length, causes the situation of middle part luminance shortage.
Figure 17 is that the utility model sticks on the leaded light post to form the synoptic diagram in reflection horizon with reflection tape.Reflection horizon on the leaded light post is except can be with being located on the leaded light post in the integrated mode, also can be as shown in figure 17, a side peripheral surface that sticks in leaded light post 17 with reflection tape 172 is to form reflection horizon 171, and the expansion scope of this reflection tape 172 is the best with the scope of 40 degree.The mode that forms the reflection horizon on the leaded light post is not limited to above two kinds, more can utilize reflective coating (figure does not show) to coat on the side peripheral surface of leaded light post, and the expansion scope that this reflective coating was coated with is the best with the scope of 40 degree also.
Figure 18 and 19 is structure decomposition map and combination appearance figures of the utility model the 8th embodiment, shown in this two figure, the utility model the 8th embodiment then is the basis that is configured to aforementioned the 6th embodiment, only, between this display panels 5 and this diffuser plate 1, establish a high light film 7 in addition, to improve the brightness of light; When light source body 4 throws light in the leaded light post 3 by two ends, can reflex in the light guide plate 6 via reflection horizon 31, utilize light guide plate 6 high efficiency guidings, can be between diffuser plate 1 and reflectance coating 2 with ray cast, improve luminance brightness by high light film 7 again, form the backlight of display panels 5.
Figure 20, the 21st, structure decomposition map and the combination appearance figure of the utility model the 9th embodiment, by shown in it, the utility model the 9th embodiment is the basis that is configured to aforementioned the 7th embodiment as can be known, the two side edges short in light guide plate 6 are respectively equipped with outside the two leaded light posts 3, the upper and lower sides long in light guide plate 6 then is provided with the two leaded light posts 30 that block in addition, only, between this display panels 5 and this diffuser plate 1, establish a high light film 7 in addition, thereby make display panels 5 form effect backlight more even and that brightness is higher.
From the above mentioned as can be known, the structure of the improved liquid crystal display backlight module of the utility model has really that brightness is good, the uniform effect of briliancy.
Only the above person only is a preferred embodiment of the present utility model, is not to be used for limiting the scope that the utility model is implemented.Be that all equalizations of being done according to the utility model claim change and modification, be all the utility model claim and contain.
Claims (14)
1. the structure of an improved liquid crystal display backlight module is characterized in that, comprising:
At least one diffuser plate is attached at the display panels dorsal part;
At least one reflectance coating is located at the dorsal part of aforementioned diffuser plate and is kept a spacing;
A plurality of leaded light posts are located between aforementioned diffuser plate, the reflectance coating, and this leaded light post more is provided with the reflection horizon that arc extends;
A plurality of light source bodies are located at this leaded light post two ends.
2. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, these a plurality of leaded light posts are evenly being arranged between this diffuser plate, the reflectance coating of being parallel to each other.
3. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, is provided with a light guide plate between this diffuser plate, the reflectance coating, and these a plurality of leaded light posts are to be arranged at this light guide plate periphery at least two offsides.
4. the structure of improved liquid crystal display backlight module as claimed in claim 3 is characterized in that, this leaded light post is to be connected by two leaded light posts to form.
5. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, this reflection horizon is to be shaped in this leaded light post, and it distributes with the expansion scope of 40 degree.
6. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, this reflection horizon is to coat on this leaded light post with reflective coating, and it distributes with the expansion scope of 40 degree.
7. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, this reflection horizon is to stick on this leaded light post with reflection tape, and it distributes with the expansion scope of 40 degree.
8. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, this reflection horizon is to face the direction setting of diffuser plate.
9. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, this reflection horizon is to face the direction setting of reflectance coating.
10. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, these leaded light post two ends are provided with shrinkage pool.
11. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, this light source body is a white light-emitting diode, and is to wear in the through hole that is fixed in default a plurality of equidistant arrangements on the substrate.
12. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, establishes a reflectance coating between this display panels, the diffuser plate in addition.
13. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, establishes a diffuser plate between this display panels, the reflectance coating in addition.
14. the structure of improved liquid crystal display backlight module as claimed in claim 1 is characterized in that, establishes a high light film between this display panels, the diffuser plate in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103591 CN2837889Y (en) | 2005-08-10 | 2005-08-10 | Improved LCD backlight module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103591 CN2837889Y (en) | 2005-08-10 | 2005-08-10 | Improved LCD backlight module structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837889Y true CN2837889Y (en) | 2006-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520103591 Expired - Fee Related CN2837889Y (en) | 2005-08-10 | 2005-08-10 | Improved LCD backlight module structure |
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| Country | Link |
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| CN (1) | CN2837889Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720987A (en) * | 2012-05-25 | 2012-10-10 | 苏州晶品光电科技有限公司 | Light emitting diode (LED) area source employing side light emitting bar |
| CN102734694A (en) * | 2011-04-15 | 2012-10-17 | 宏碁股份有限公司 | Backlight module |
-
2005
- 2005-08-10 CN CN 200520103591 patent/CN2837889Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734694A (en) * | 2011-04-15 | 2012-10-17 | 宏碁股份有限公司 | Backlight module |
| CN102720987A (en) * | 2012-05-25 | 2012-10-10 | 苏州晶品光电科技有限公司 | Light emitting diode (LED) area source employing side light emitting bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061115 Termination date: 20090910 |