CN101344675B - Backlight module and LCD device - Google Patents
Backlight module and LCD device Download PDFInfo
- Publication number
- CN101344675B CN101344675B CN2007101360235A CN200710136023A CN101344675B CN 101344675 B CN101344675 B CN 101344675B CN 2007101360235 A CN2007101360235 A CN 2007101360235A CN 200710136023 A CN200710136023 A CN 200710136023A CN 101344675 B CN101344675 B CN 101344675B
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- backboard
- protuberance
- backlight module
- hole
- liquid crystal
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Abstract
An LCD apparatus comprises a backlight module and an LCD panel which is adjacent to the backlight module that includes a backplane and an optical plate. The backplane comprises a backplane body and a projecting part and the backplane body is provided with a hole and the projecting part is arranged around the edge of the hole to form a certain angel with the backplane body. One end of the projecting part which is far away from the hole clings to the optical backplane.
Description
Technical field
The present invention relates to a kind of backboard, backlight module and liquid crystal indicator, particularly a kind of backboard, backlight module and liquid crystal indicator with protuberance with the support of optical film.
Background technology
Liquid crystal indicator (Liquid Crystal Display, LCD) low with its power consumption, thermal value is few, in light weight and non-radiation type or the like advantage, be used in the electronic product miscellaneous, and little by little replace traditional CRT display (Cathode Ray Tube Display, CRT Display).
Generally speaking, liquid crystal indicator comprises a display panels (LCD Panel) and a backlight module (Backlight Module).Wherein, display panels mainly has two substrates and and is located in liquid crystal layer between two substrates; And backlight module can be distributed to display panels equably with the light from a light source.
Please refer to Fig. 1, it is the backlight module synoptic diagram of known technology, and it is the backlight module of a direct-type (Direct Type).Backlight module 1 comprises a backboard 11, a plurality of fluorescent tube 12, two lamp tube fixing seat (lamp holder) 13, a plurality of fluorescent tube guard member (lamprubber) 14, an optical diaphragm group 15, a diffuser plate 151 and a framework 16.
Wherein, fluorescent tube 12 is cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp; CCFL); and be spaced and be arranged on the backboard 11; two ends of fluorescent tube 12 are arranged in the fluorescent tube guard member 14; fluorescent tube guard member 14 is in order to the solder joint of protection fluorescent tube 12 electrodes; lamp tube fixing seat 13 pressing fluorescent tube guard members 14 are on backboard 11; and lamp tube fixing seat 13 is arranged at the dual side-edge of backboard 11; and form complete side wall with two lateral margins of backboard 11; in order to support diffuser plate 151 and optical diaphragm group 15, combine with backboard 11 via framework 16 again, thereby make fluorescent tube 12; diffuser plate 151 and optical diaphragm group 15 are fixed on the backboard 11.
In addition,,, and influence the path of fluorescent tube 12 emitted lights, and then reduce the usefulness of backlight module 1 so the pars intermedia branch of diffuser plate 151 is sagging because of terrestrial attraction because backboard 11 and lamp tube fixing seat 13 only support the edge of diffuser plate 151.So backlight module 1 also has a plurality of support members 17, all have a tapering 171 on each support member 17, these support members 17 are arranged on the backboard 11, in order to supplemental support diffuser plate 151.Fig. 2 is the partial schematic diagram of backlight module 1, as shown in Figure 2, tapering 171 butt diffuser plates 151, thus, diffuser plate 151 just can be subjected to proper supporting power and bring into play good effect.At this, tapering 171 is made with reflective good optical level material, and for example (Polycarbonate, PC), in order to avoid backlight module 1 produces dim spot near conus portion 171, but tapering 171 costs are higher for Bai Se polycarbonate.
Though the setting of support member 17 can solve the problem of support of optical diaphragm group 15, and many shortcomings are also arranged.For example, each support member 17 is all represented the increase of manufacturing cost and production time, and difference along with display panels and backlight module 1 size, backboard 11 is to the height H of optical diaphragm group 15 also different (asking for an interview Fig. 2), so the support member 17 of the backlight module 1 of different size just can't be shared, and need the new support member of redesign 17 height, so reduced the raw material of support member 17 compatibility of getting the raw materials ready, therefore can increase manufacturing cost, particularly the polycarbonate of optical grade material is the material that belongs to expensive, and a large amount of uses also can increase manufacturing cost.
Therefore, how a kind of backboard, backlight module and liquid crystal indicator are provided, need use just support of optical plate suitably of extra support member, to reduce manufacturing cost and to shorten the production time, and the usefulness of raising backlight module, real is one of current important topic.
Summary of the invention
Because above-mentioned problem, purpose of the present invention is for providing a kind of the additional support just backboard of support of optical plate, backlight module and liquid crystal indicator suitably of need not using.
So for reaching above-mentioned purpose, a kind of backboard according to the present invention comprises a backboard body and a protuberance, backboard body has a hole, and protuberance is arranged at the periphery of hole, and forms an angle with backboard body.
For reaching above-mentioned purpose, a kind of backlight module according to the present invention comprises a backboard and an optical plate, backboard has a backboard body and a protuberance, backboard body has a hole, protuberance is arranged at the periphery of hole, and form an angle with backboard body, protuberance is connected to optical plate away from an end of hole.
For reaching above-mentioned purpose, a kind of liquid crystal indicator according to the present invention comprises a backlight module and a display panels, wherein, backlight module has a backboard and an optical plate, and backboard has a backboard body and a protuberance, backboard body has a hole, protuberance is arranged at the periphery of hole, and forms an angle with backboard body, and protuberance is connected to optical plate away from an end of hole, in addition, display panels is adjacent to backlight module.
According to the above,, because of having a protuberance on its backboard, make optical plate bring into play better optical characteristics, and then improve the usefulness of backlight module in order to the support of optical plate according to a kind of backboard of the present invention, backlight module and liquid crystal indicator.In addition, protuberance and backboard body are formed in one, so compare with known technology, the present invention does not need to make extra support member and takes the support of optical plate, and then reduce manufacturing cost and production time.In addition, protuberance, hole and backboard body can Sheet Metal Forming Technologies and moulding is compared with known technology, and the present invention can carry out punching press according to backboard body to the height of optical plate, so can improve the compatibility of backboard protuberance, and and then increase the usefulness of backlight module and liquid crystal indicator.
Description of drawings
Fig. 1 is a kind of synoptic diagram of known backlight module;
Fig. 2 is a kind of partial schematic diagram of known backlight module;
Fig. 3 is the synoptic diagram according to a kind of backboard of preferred embodiment of the present invention;
Fig. 4 A to Fig. 4 C is the synoptic diagram according to the different conditions of the protuberance of a kind of backboard of preferred embodiment of the present invention;
Fig. 5 is the synoptic diagram according to a kind of backlight module of preferred embodiment of the present invention;
Fig. 6 is the partial schematic diagram according to a kind of backlight module of preferred embodiment of the present invention; And
Fig. 7 is the synoptic diagram according to a kind of liquid crystal indicator of preferred embodiment of the present invention.
Embodiment
Hereinafter with reference to relevant drawings, a kind of backboard, backlight module and the liquid crystal indicator of the preferred embodiment according to the present invention is described, wherein identical parts will be illustrated with identical Reference numeral.
Please refer to shown in Figure 3, a kind of backboard 2 of preferred embodiment of the present invention comprises a backboard body 21 and a plurality of protuberance 22, backboard body 21 has a plurality of holes 211, and each protuberance 22 correspondence is arranged at the periphery of each hole 211, and forms an angle with backboard body 21.In the present embodiment, the material of backboard 2 is a metal, is aluminum or aluminum alloy for example, is beneficial to conduct heat energy and heat radiation, and in addition, the surface of backboard 2 also can be galvanized steel strap, with anti-oxidant.Note that the backboard body 21 of present embodiment is tabular haply, but be not restricted to tabularly,, still belong to the scope of backboard body 21 if having relief pattern or other causes the smooth structure of air spots on the backboard body 21.
In the present embodiment, protuberance 22 is one-body molded with backboard body 21, and protuberance 22, hole 211 and backboard body 21 moulding with Sheet Metal Forming Technology.Please refer to the enlarged drawing of Fig. 3, the protuberance 22 that produces via 21 punching presses of Sheet Metal Forming Technology toward back plate body is worked in coordination and is respectively had on one side with the shape of hole 211 and is connected to each other, protuberance 22 can strike out arbitrary shape, certainly, protuberance 22 also can be processed again and form the various kinds shape, for example strip (Fig. 3) or hook-shaped or the like.Please refer to shown in Fig. 4 A to Fig. 4 C, when protuberance 22 when being hook-shaped, protuberance 22 has a replicated structures 221 away from an end of hole 211, and that replicated structures 221 can be is L shaped, U-shaped or ㄇ shape, and replicated structures 221 can be designed to other shape according to need certainly.
In addition, the backboard 2 of present embodiment also can comprise an external member 23, is sheathed on the end of protuberance 22 away from hole 211.Wherein, the material of external member 23 can be resilient material, be arranged on the backboard 2 as blooming, and when supporting, just can avoid the protuberance 22 of metal material directly rub by means of external member 23 or the surface of clashing into optical plate causes optical plate to damage because of external force by protuberance 22.Cover too many light for fear of protuberance 22, (Polycarbonate PC) makes the polycarbonate of external member 23 available light classes and grades in school, with the reflection of assist ray.Thus, backlight module just can not produce dim spot in the place that protuberance 22 contacts with optical plate.In addition, though the external member 23 of present embodiment uses the polycarbonate of optical grade to make, but be compared to known technology, the external member 23 of present embodiment can be applicable to the backlight module of virtually any size and need not redesign, and promote the raw material part compatibility, reduce the cost of getting the raw materials ready.Further, external member 23 sizes of present embodiment can be designed to enough get final product for an end that is sheathed on protuberance 22.So more can reduce use, the minimizing Material Cost of the polycarbonate of optical grade, in sum, the backboard 2 of present embodiment can significantly reduce manufacturing cost.In the present embodiment, the shape of external member 23 is also without particular limitation, can be Any shape, and preferably the shape with protuberance 22 matches, in order to being sheathed on protuberance 22 securely.
Then, please refer to shown in Figure 5, with the explanation preferred embodiment of the present invention a kind of backlight module 3.
The backlight module 3 of present embodiment comprises a backboard 2, at least one fluorescent tube 31, two lamp tube fixing seat (lamp holder) 32, a plurality of fluorescent tube guard member (lamp rubber) 33, one optical plate 34, an optical diaphragm group 35 and a framework 36.
Wherein, backboard 2 describes in detail in previous embodiment, repeats no more in this.In the present embodiment; fluorescent tube 31 is with a plurality of cold cathode fluorescent lamp (Cold Cathode FluorescentLamp; CCFL) be example; and be spaced and be arranged on the backboard body 21; two ends of fluorescent tube 31 are arranged in respectively in the fluorescent tube guard member 33, and fluorescent tube guard member 33 is in order to the solder joint of protection fluorescent tube 31 electrodes.In addition, lamp tube fixing seat 32 pressing fluorescent tube guard members 33 are on backboard body 21, and lamp tube fixing seat 32 is arranged at the dual side-edge of backboard body 21, and form complete side wall with two lateral margins 212 of backboard body 21, in order to support of optical plate 34.In addition, optical diaphragm group 35 is arranged on the optical plate 34, generally speaking, optical plate 34 can be a diffuser plate or other has the optical plate of light diffusion function, and optical diaphragm group 35 can be selected from diffusion barrier on, a brightness enhancement film and once the group that forms of diffusion barrier at least one of them.In addition, combine with backboard 2, fluorescent tube 31, optical plate 34 and optical diaphragm group 35 are fixed between framework 36 and the backboard 2 by means of framework 36.
So, the light that fluorescent tube 31 is sent through optical plate 34 and optical diaphragm group 35, and penetrates backlight module 3.Wherein, by means of the combination of optical plate (for example a diffuser plate or Shu diffusion barrier) 34, optical diaphragm group 35, the light that makes fluorescent tube 31 send can evenly exhale, and promotes the optical property of light.In addition, a reflector plate 24 (asking for an interview Fig. 6) can be set on backboard body 21, the light that makes fluorescent tube 31 send reflexes to optical plate 34 via reflector plate 24, to improve the light utilization and the brightness of backlight module 3.
In addition, note that the backlight module 3 of present embodiment provides lamp tube fixing seat 32, fluorescent tube guard member 33 to fix fluorescent tube 31, and link that this only is a kind of embodiment and unrestricted with backboard 2.Also have many modes because this part is not the principal character of present embodiment and is known technology, therefore to repeat no more in order to fix, to protect fluorescent tube 31 and fluorescent tube 31 is fixed on the backboard 2.
Fig. 6 is the partial schematic diagram of backlight module 3, and as shown in Figure 6, protuberance 22 is connected to optical plate 34 away from an end of hole 211, so that optical plate 34 is not sagging by means of the support of protuberance 22, and then obtains better optical characteristics.Note that the size of protuberance 22 decides according to the height H of backboard body 21 to optical plate 34, also promptly along with the difference of height H, protuberance 22 can strike out different size, so that protuberance 22 butt optical plates 34.In addition; by means of external member 23 as guard member; can avoid protuberance 22 collisions or wearing and tearing optical plate 34; and external member 23 can be made by the polycarbonate of optical grade, can strengthen the reflection of light, makes backlight module 3 not form dim spot; and the usefulness of lifting backlight module 3; and external member 23 can commonly be used in the backlight module of different size, and then reduces the former material cost of getting the raw materials ready.In addition, reflector plate 24 can offered through hole 241 corresponding to the position of protuberance 22, but so that reflector plate 24 full wafer ground directly be installed on the surface of backboard body 21, and promote the packaging efficiency of backlight module 3.
At last, please refer to shown in Figure 7ly, a kind of liquid crystal indicator 4 of preferred embodiment of the present invention is described.
As shown in Figure 7, liquid crystal indicator 4 comprises a backlight module 3 and a display panels 41, and wherein, backlight module 3 describes in detail in previous embodiment, repeats no more in this.
In addition, display panels 41 is adjacent to backlight module 3, generally speaking, display panels 41 comprises one first substrate, one second substrate and is located in the liquid crystal layer between first substrate and second substrate, certainly display panels 41 also can have peripheral circuit, with the rotation of liquid crystal molecule in the controlling and driving liquid crystal layer.
In the present embodiment, liquid crystal indicator 4 also can comprise a housing 42, and housing 42 combines with the backboard 2 of backlight module 3, to insert and put display panels 41 between housing 42 and backlight module 3.By the light that backlight module 3 is sent, enter display panels 41, and produce picture.
In sum, according to a kind of backboard of the present invention, backlight module and liquid crystal indicator, because of having a protuberance on its backboard, make optical plate bring into play better optical characteristics, and then improve the usefulness of backlight module in order to the support of optical plate.In addition, protuberance and backboard body can be formed in one, so compare with known technology, the present invention does not need to make extra support member and takes the support of optical plate, and then reduce manufacturing cost and production time.In addition, because protuberance, hole and backboard body can Sheet Metal Forming Technologies and moulding, compare with known technology, the present invention can carry out punching press according to backboard body to the height of optical plate, so can improve the shared compatibility that the backboard protuberance is applied to each size backlight module, and and then the former material that reduces backlight module and liquid crystal indicator get the raw materials ready.
The above only is exemplary, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the scope of claims its equivalent modifications of carrying out or remodeling.
The reference numerals list explanation:
1,3 backlight modules
11,2 backboards
12,31 fluorescent tubes
13,32 lamp tube fixing seat
14,33 fluorescent tube guard members
15,35 optical diaphragm group
151 diffuser plates
16,36 frameworks
17 support members
171 taperings
21 backboard body
211 holes
212 lateral margins
22 protuberances
221 replicated structures
23 external members
24 reflector plates
241 through holes
34 optical plates
4 liquid crystal indicators
41 display panels
42 housings
The H height
Claims (18)
1. liquid crystal indicator comprises:
One backlight module, it has a backboard and an optical plate, this backboard has a backboard body and a protuberance, this backboard body has a hole, this protuberance is arranged at the periphery of this hole, and form an angle with this backboard body, this protuberance is connected to this optical plate away from an end of this hole, and this protuberance and this backboard body are one-body molded; And
One display panels is adjacent to this backlight module.
2. liquid crystal indicator as claimed in claim 1 is characterized in that, this protuberance, this hole and this backboard body are moulding with Sheet Metal Forming Technology.
3. liquid crystal indicator as claimed in claim 1 is characterized in that, this protuberance matches with the shape of this hole.
4. liquid crystal indicator as claimed in claim 1 is characterized in that, this protuberance is strip, sheet or hook-shaped.
5. liquid crystal indicator as claimed in claim 1 is characterized in that, this protuberance has a replicated structures away from an end of this hole.
6. liquid crystal indicator as claimed in claim 1 is characterized in that, the material of this backboard is a metal.
7. liquid crystal indicator as claimed in claim 1 is characterized in that, this backboard also comprises:
One external member, it is sheathed on the end of this protuberance away from this hole.
8. liquid crystal indicator as claimed in claim 7 is characterized in that, the material of this external member is a polycarbonate.
9. liquid crystal indicator as claimed in claim 1 is characterized in that, this backlight module also comprises:
One reflector plate, it is arranged on this backboard body.
10. backlight module comprises:
One backboard, it has a backboard body and a protuberance, and this backboard body has a hole, and this protuberance is arranged at the periphery of this hole, and forms an angle with this backboard body, and this protuberance and this backboard body are one-body molded; And
One optical plate, this protuberance is connected to this optical plate away from an end of this hole.。
11. backlight module as claimed in claim 10 is characterized in that, this protuberance, this hole and this backboard body are moulding with Sheet Metal Forming Technology.
12. backlight module as claimed in claim 10 is characterized in that, this protuberance matches with the shape of this hole.
13. backlight module as claimed in claim 10 is characterized in that, this protuberance is strip, sheet or hook-shaped.
14. backlight module as claimed in claim 10 is characterized in that, this protuberance has a replicated structures away from an end of this hole.
15. backlight module as claimed in claim 10 is characterized in that, the material of this backboard is a metal.
16. backlight module as claimed in claim 10 is characterized in that, this backboard also comprises an external member, and it is sheathed on the end of this protuberance away from this hole.
17. backlight module as claimed in claim 16 is characterized in that, the material of this external member is a polycarbonate.
18. backlight module as claimed in claim 10 also comprises:
One reflector plate, it is arranged on this backboard body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101360235A CN101344675B (en) | 2007-07-10 | 2007-07-10 | Backlight module and LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101360235A CN101344675B (en) | 2007-07-10 | 2007-07-10 | Backlight module and LCD device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101344675A CN101344675A (en) | 2009-01-14 |
| CN101344675B true CN101344675B (en) | 2011-11-02 |
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ID=40246696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101360235A Expired - Fee Related CN101344675B (en) | 2007-07-10 | 2007-07-10 | Backlight module and LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101344675B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104714314B (en) * | 2013-12-12 | 2018-04-17 | 群创光电股份有限公司 | Display housing and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560677A (en) * | 2004-03-04 | 2005-01-05 | 友达光电股份有限公司 | Backlight assembly |
| CN1700063A (en) * | 2004-05-18 | 2005-11-23 | 瀚宇彩晶股份有限公司 | LCD and back light module |
| TW200622423A (en) * | 2004-12-27 | 2006-07-01 | Samsung Electronics Co Ltd | Receiving container, backlight assembly having the receiving container, and display device having the backlight assembly |
| TW200626997A (en) * | 2005-01-20 | 2006-08-01 | Quanta Display Inc | Structure of back cover |
-
2007
- 2007-07-10 CN CN2007101360235A patent/CN101344675B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560677A (en) * | 2004-03-04 | 2005-01-05 | 友达光电股份有限公司 | Backlight assembly |
| CN1700063A (en) * | 2004-05-18 | 2005-11-23 | 瀚宇彩晶股份有限公司 | LCD and back light module |
| TW200622423A (en) * | 2004-12-27 | 2006-07-01 | Samsung Electronics Co Ltd | Receiving container, backlight assembly having the receiving container, and display device having the backlight assembly |
| TW200626997A (en) * | 2005-01-20 | 2006-08-01 | Quanta Display Inc | Structure of back cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101344675A (en) | 2009-01-14 |
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| ASS | Succession or assignment of patent right |
Owner name: INNOLUX DISPLAY CORPORATION Free format text: FORMER OWNER: QIMEI ELECTRONIC CO LTD Effective date: 20110901 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20110901 Address after: Taiwan, China Hsinchu science and Technology Industrial Park, Miaoli County, Southern Town, science Road, No. 160 Applicant after: Innolux Display Group Address before: Tainan County, Taiwan, China Applicant before: Chimei Optoelectronics Co., Ltd. |
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