CN101782699B - Display device with composite backlight module - Google Patents
Display device with composite backlight module Download PDFInfo
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- CN101782699B CN101782699B CN2009100050692A CN200910005069A CN101782699B CN 101782699 B CN101782699 B CN 101782699B CN 2009100050692 A CN2009100050692 A CN 2009100050692A CN 200910005069 A CN200910005069 A CN 200910005069A CN 101782699 B CN101782699 B CN 101782699B
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- backlight module
- composite backlight
- light
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Abstract
The invention relates to a display device with a composite backlight module. The display device comprises an outer frame, a display panel (Cell), at least one optical membrane, a light emitting device and the composite backlight module, wherein the composite backlight module is provided with a plurality of connecting structures which are connected with the outer frame to fix and protect the display panel; the composite backlight module is provided with an accommodation space for accommodating the display panel and the optical membrane and a light guide part which is used for guiding light emitted by the light emitting device to the light emergent surface of the composite backlight module; and in addition, the composite backlight module is prepared from the same material through injection molding. The display device can effectively reduce parts, simplify the manufacturing procedure, and achieve the effect of cost reduction.
Description
[technical field]
The invention relates to a kind of display device, particularly about a kind of display device of tool composite backlight module.
[background technology]
In vogue with accompanied electronic product in the progress of person's electronics technology and the daily life increases day by day for the demand of the display compact, that power consumption is low.LCD (Liquid CrystalDisplay; LCD) power consumption power is low, thermal value reaches advantages such as in light weight less owing to having, and often is used in this type of the electronic product, and progressively replaces traditional cathode-ray tube display.Because of display panels right and wrong light-emitting device voluntarily, so need a module backlight (Backlight) so that equally distributed light source to be provided.Yet in the whole cost of liquid crystal display module, module backlight (Backlight) occupies quite great proportion, and along with the shared proportion of the increase of size is high more.In addition, the spare part in the module backlight is quite numerous and diverse, and each spare part all is the numerous and diverse complexities that also increased module assembling backlight of a cost burden and spare part.So except the cost that reduces each napex material, how effectively to reduce the quantity of each spare part and integrate each spare part, especially the problem of each anxious desire research of tame panel factory to simplify module number of assembling steps backlight.
See also Fig. 1, it is to be available liquid crystal display module explosive view.Wherein, the LCD module is to be assembled in regular turn by an outside framework (Bezel) 11, a display panel (Cell) 12, a blooming piece (Film) 13, a glue frame (Frame) 14, a light guide plate (LGP) 15, a light-emitting device (Light Bar) 16, one reflection unit (Reflector) 17 and a metal backing (Backcover) 18.In this assembling process, existing module backlight is to include a metal backing 18, a glue frame 14 and a light guide plate 15, utilize metal backing 18 and glue frame 14 to combine with outside framework 11, do other materials of inside effectively fixing, so that having structure, the LCD module of this package program of process firmly reaches the good advantage of optics image quality, but this kind mode is many and package program is complicated because of spare part quantity, thereby the manufacturing process that has elongated production line to have increased degree of difficulty and portion's material of module backlight assembling many, make material cost increase.
[summary of the invention]
Because every problem of existing skill, in order to take into account solutions, the present invention proposes a kind of display device of tool composite backlight module, with implementation and the foundation as the above-mentioned shortcoming of improvement.
In view of this, purpose of the present invention is exactly in the display device that a kind of tool composite backlight module is provided, to reach effective minimizing part, simplify production process and to reach the effect that reduces cost.
According to purpose of the present invention, propose a kind of liquid crystal indicator of tool composite backlight module, it is to comprise an outside framework (Bezel), a display panel (Cell), at least one blooming piece (Film), a light-emitting device (Light Bar) and a composite backlight module.Outside framework is to have several first syndetons, and light-emitting device is in order to providing light source to give display panel, light-emitting device be comprise at least one light emitting diode and a printed circuit board (PCB) or cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp, CCFL).Composite backlight module is to comprise several second syndetons and an accommodation space, and these second syndetons are to be arranged at the outer side edges of this composite backlight module to link first syndeton of outside framework side.Accommodation space comprises first depressed part, second depressed part and the 3rd depressed part.First depressed part be the size of corresponding blooming piece holding blooming piece, second depressed part is that the size of corresponding display panel is to hold display panel.The 3rd depressed part is positioned at second depressed part below and is thin-and-long, in order to place light-emitting device.In addition, the open region area of second depressed part is greater than the open region area of first depressed part; The open region area of first depressed part is greater than the open region area of the 3rd depressed part.Composite backlight module has a light guide section so that the light that light-emitting device sent is directed to the exiting surface of composite backlight module, exiting surface is the display surface corresponding to display panel, again via blooming piece with equalizing light rays to provide display panel uniform distribution of light.Reflection unit is to be positioned at the light that composite backlight module bottom penetrates from the bottom of composite backlight module with reflection so as to improving light utilization.
The display device of a kind of tool composite backlight module provided by the invention, it comprises: an outside framework has one first syndeton; One display panel; One blooming piece; One light-emitting device; And a composite backlight module, comprise: an accommodation space; And one second syndeton; Wherein, this display panel, this blooming piece and this light-emitting device are to be arranged at this accommodation space, this second syndeton is to be arranged at the outer side edges of this composite backlight module and in order to linking this first syndeton, and this composite backlight module is made of commaterial.
In addition, the present invention also proposes a kind of display device of tool composite backlight module, it is characterized in that in conjunction with existing light guide plate (LGP), metal backing (Backcover) and glue frame (Frame) to form composite backlight module, utilize the advantage (promptly can penetrate the characteristic of various external forms) of ejection formation, effectively leaded light version (LGP), metal backing (Backcover) and glue frame (Frame) are integrated, and all form with ejection formation.This composite backlight module still has the original mechanism characteristics of each spare part and effectively three spare parts is reduced to a spare part.So composite backlight module only needs the processing procedure of an ejection formation, and the present invention utilizes same material to form this composite backlight module, not only reduces part portion material, more simplifies production process, reaches the effect that reduces cost.
[description of drawings]
Fig. 1 is the first assembly explosive view for existing back light module group;
Fig. 2 A is the embodiment explosive view for the display device of tool composite backlight module of the present invention;
Fig. 2 B is the sectional view for the composite backlight module of the display device of tool composite backlight module of the present invention;
And
Fig. 2 C is another embodiment synoptic diagram for the display device of tool composite backlight module of the present invention.
11: outside framework
12: display panel
13: blooming piece
14: the glue frame
15: light guide plate
16: light-emitting device
17: reflection unit
18: metal backing
211: the first syndetons
22: display panel
23: blooming piece
24: light-emitting device
25: composite backlight module
251: the second syndetons
252: accommodation space
2521: the first depressed parts
2522: the second depressed parts
2523: the three depressed parts
25231: incidence surface
2524: light guide section
26: reflection unit
27: the first depressed parts
28: the second depressed parts
Now further understand and understanding for making technical characterictic of the present invention and the effect that reached had, careful assistant with preferred embodiment and cooperate detailed explanation as after.
[embodiment]
Hereinafter with reference to correlative type, the display device according to embodiment of the invention tool composite backlight module is described, to be convenient to understand for making, the similar elements among the following embodiment is to illustrate with identical symbology.
See also Fig. 2 A, it is the embodiment explosive view for the display device of tool composite backlight module of the present invention.Among the figure, display device is to comprise an outside framework 21 (Bezel), a display panel 22 (Cell), at least one blooming piece 23 (Film), a light-emitting device 24 and a composite backlight module 25.Outside framework 21 is to have several first syndetons 211, and light-emitting device 24 is in order to providing light source to give display panel 22, and light-emitting device 24 is to comprise an at least one light emitting diode and a printed circuit board (PCB), and wherein light-emitting device 24 also can be cold cathode fluorescent lamp.Composite backlight module 25 is to comprise several second syndetons 251 and an accommodation space 252.See also Fig. 2 B, accommodation space comprises first depressed part 2521, second depressed part 2522 and the 3rd depressed part 2523, is respectively in order to hold blooming piece 23, display panel 22 and light-emitting device 24.In addition, the open region area of second depressed part 2522 is greater than the open region area of first depressed part 2521; The open region area of first depressed part is greater than the open region area of the 3rd depressed part 2523.In addition, the 3rd depressed part 2523 is to be located at the bottom of first depressed part 2521 to place light-emitting device 24, and this 3rd depressed part 2523 is to be positioned at a side of accommodation space 252 and to be sleeve configuration.The size of first depressed part 2521 is sizes of corresponding blooming piece 23 so that hold blooming piece 23 and the position of firm blooming piece 23, second depressed part 2522 is sizes of corresponding display panel 22, so that hold the position of display panel 22 and firm display panel 22, design whereby, display panel 22 and blooming piece 23 are difficult for because of bump or impact and cause displacement to damage.Composite backlight module 25 has a light guide section 2524 so that the light that light-emitting device 24 is sent is directed to composite backlight module 25 exiting surfaces, exiting surface is for the one side that corresponds to display panel and is positioned at the bottom of first depressed part and is to be formed in one with composite backlight module, again via blooming piece 23 with equalizing light rays, to provide display panel 22 uniform distribution of light.See also Fig. 2 B, a side surface of the 3rd depressed part 2523 is the incidence surface 25231 of light guide section 2524.Composite backlight module 25 is through with transparent material, as: acryl resin (acrylicresin) forms through ejection formation.Blooming piece 23 is to comprise diffusion sheet and at least one prismatic lens.Further, blooming piece 23 is the belows that are positioned at display panel, 2524 belows that are positioned at blooming piece 23 of light guide section, 24 sides that are arranged at composite backlight module 25 of light-emitting device, so, the light that sent of light-emitting device 24 forms uniform lights and is incident in display panel 22 via light guide section 2524 and blooming piece 23.Second syndeton 251 is to be connected with first syndeton 211, so that outside framework 21 firmly coats composite backlight module 25, with the structure of protection display device inside.Referring again to Fig. 2 A, display device more comprises a reflection unit 26, and its structure can comprise a bottom and at least one side, shown in Fig. 2 A, and reflection unit 26, it can be a box-structure.This reflection unit 26 is positioned at composite backlight module 25 bottoms and peripheral in order to the light of reflection towards composite backlight module 25 bottom emission, the light of avoiding light-emitting device 24 to send penetrates from the bottom of composite backlight module 25, and improves light utilization to promote the briliancy of display panel 22.Reflection unit 26 can be attached at these composite backlight module 25 bottoms or otherwise be incorporated into composite backlight module 25 bottoms by double faced adhesive tape.In addition, though the reflection unit 26 of present embodiment is to do explanation with a box-structure, so not as limit, in another embodiment, reflection unit 26 also can be and is designed to a sheet structure, and promptly it does not comprise the side as box-structure.
The present invention is integrated into portion's material to form composite backlight module 25 with light guide plate (LGP) and metal backing (Backcover) and glue frame (Frame).This composite backlight module 25 is to use the mode of ejection formation (promptly can penetrate the characteristic of various external forms), utilize commaterial to make, effectively will light guide plate (LGP), metal backing (Backcover) and glue frame three portion's materials such as (Frame) are integrated into portion's material.This composite backlight module 25 is still to have the function and the intensity of former three portion's materials and effectively three spare parts are reduced to a spare part.So composite backlight module only needs the processing procedure of an ejection formation, and the present invention utilizes same material to form this composite backlight module, not only reduces part portion material, more simplifies production process, reaches the effect that reduces cost.
See also Fig. 2 C, it is another embodiment synoptic diagram for the display device of tool composite backlight module of the present invention.Among the figure, composite backlight module is to comprise first depressed part 27 and second depressed part 28, wherein first depressed part 27 is in order to put display panel and blooming piece, second depressed part 28 is that it is the open region area of the open region area of the long and narrow (as shown in the figure) and first depressed part 27 greater than second depressed part 28 in order to the storing light-emitting device.Composite backlight module 25 has a light guide section, wherein, the side surface that the incidence surface of light guide section 2524 is second depressed part constitutes, and constitute and the main exiting surface of light guide section is the bottom surface of this first depressed part, that is the exiting surface of light guide section is for corresponding to the one side of display panel.Composite backlight module 25 is can be via transparent material, as: acryl resin (acrylic resin) forms through ejection formation.Thus, the light that light-emitting device sent can enter the light guide section of composite backlight module via a side surface (incidence surface of light guide section) of second depressed part, derive by the bottom surface (exiting surface of light guide section) of first depressed part at last, again via blooming piece with equalizing light rays, to provide display panel 22 uniform distribution of light.Composite backlight module 25 is that to have several second syndeton, 251, the second syndetons 251 be to join with the first junctor structure of outside framework.This composite backlight module 25 is effectively light guide plate (LGP) and metal backing (Backcover) and glue frame (Frame) to be integrated into portion's material to form composite backlight module 25.This composite backlight module 25 is still to have the function and the intensity of former three portion's materials and effectively three spare parts are reduced to a spare part.So miscellaneous fabrication steps of composite backlight module 25 omissions, and the present invention utilizes same material to form this composite backlight module with injection molding method, not only reduces part portion material, more simplifies production process, reaches the effect that reduces cost.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the claim its equivalent modifications of carrying out or change.
Claims (9)
1. the display device of a tool composite backlight module, it comprises:
One outside framework has one first syndeton;
One display panel;
One blooming piece;
One light-emitting device; And
One composite backlight module comprises:
One accommodation space; And
One second syndeton;
Wherein, this display panel, this blooming piece and this light-emitting device are to be arranged at this accommodation space, this second syndeton be arranged at this composite backlight module outer side edges and in order to link this first syndeton, and this composite backlight module is made of commaterial, and this composite backlight module has a light guide section so that the light that light-emitting device sent is directed to the composite backlight module exiting surface.
2. the display device of tool composite backlight module as claimed in claim 1 is characterized in that: this composite backlight module is formed with ejection formation.
3. the display device of tool composite backlight module as claimed in claim 1 is characterized in that: also comprise a reflection unit, this reflection unit is to be positioned at this composite backlight module bottom and periphery, with the light of reflection towards the composite backlight module bottom emission.
4. the display device of tool composite backlight module as claimed in claim 3 is characterized in that: this reflection unit comprises a bottom and at least one side,
5. the display device of tool composite backlight module as claimed in claim 4 is characterized in that: this reflection unit is a box-structure.
6. the display device of tool composite backlight module as claimed in claim 1 is characterized in that: this accommodation space comprises one first depressed part, one second depressed part and one the 3rd depressed part.
7. the display device of tool composite backlight module as claimed in claim 6 is characterized in that: the open region area of this second depressed part is greater than the open region area of this first depressed part.
8. the display device of tool composite backlight module as claimed in claim 6 is characterized in that: the open region area of this first depressed part is greater than the open region area of the 3rd depressed part.
9. the display device of tool composite backlight module as claimed in claim 1 is characterized in that: this composite backlight module is to form through the transparent material ejection formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100050692A CN101782699B (en) | 2009-01-21 | 2009-01-21 | Display device with composite backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100050692A CN101782699B (en) | 2009-01-21 | 2009-01-21 | Display device with composite backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101782699A CN101782699A (en) | 2010-07-21 |
| CN101782699B true CN101782699B (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100050692A Active CN101782699B (en) | 2009-01-21 | 2009-01-21 | Display device with composite backlight module |
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| CN (1) | CN101782699B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943808A (en) * | 2010-07-29 | 2011-01-12 | 深圳市华星光电技术有限公司 | Rubber frame for liquid crystal display, manufacturing thereof method and liquid crystal display |
| TWI444722B (en) * | 2011-06-01 | 2014-07-11 | Au Optronics Corp | Back light module and display device |
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2009
- 2009-01-21 CN CN2009100050692A patent/CN101782699B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101782699A (en) | 2010-07-21 |
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