CN203115721U - Backlight module and display device including same - Google Patents
Backlight module and display device including same Download PDFInfo
- Publication number
- CN203115721U CN203115721U CN2013201199969U CN201320119996U CN203115721U CN 203115721 U CN203115721 U CN 203115721U CN 2013201199969 U CN2013201199969 U CN 2013201199969U CN 201320119996 U CN201320119996 U CN 201320119996U CN 203115721 U CN203115721 U CN 203115721U
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- Prior art keywords
- groove
- module backlight
- lead
- upper grooves
- light sources
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Abstract
The utility model provides a backlight module and a display device including the same, and relates to the display technology. The backlight module and the display device including the same are used for solving the problems that an existing backlight module is unstable in structure and high in cost. The backlight module comprises a light guide plate and a plurality of light sources, and the light sources are connected together through wires. The backlight module is characterized in that grooves are formed in the light guide plate, the grooves include a first groove and a second groove which are communicated with each other, the first groove contains the light sources, and the second groove contains the wires. The backlight module is used for supplying backlight sources to the display device.
Description
Technical field
The utility model relates to Display Technique, relates in particular to a kind of module backlight and has the display unit of this module backlight.
Background technology
Advantage such as that LCD (Liquid Crystal Display, liquid crystal indicator) has is in light weight, thin thickness, low in energy consumption and radiation are little has been widely used in fields such as information technology, multimedia technology, and has become the main flow of various display unit gradually.But because LCD panel itself is not luminous, must use module backlight to provide light source for it.
LED lamp (Light Emitting Diode light emitting diode) generally adopts straight-down negative or side entering type to arrange the LCD panel is shone as the light-emitting component of LCD module backlight.Wherein more traditional LED mounting means is, the LED lamp is embedded into be made into the lamp bar in the flexible PCB, then the lamp bar sticked on the LGP, by LGP the light of Led lamp shone on the panel of LCD to realize the normal demonstration of LCD.
But the mode of above-mentioned installation LED lamp, because flexible PCB normally sticks on the LGP by double faced adhesive tape, and expanding or shrinking can appear under hot and humid environment in flexible PCB, causes the distortion of lamp bar, causes bad problems such as light loss thereby produce light leak.And the lamp bar is as the best part in the module cost backlight, and flexible PCB occupies certain proportion, has also increased the cost of module backlight to a certain extent.
The utility model content
Embodiment of the present utility model provides a kind of module backlight and has the display unit of this module backlight, with solving existing back light module unit structure instability, cost problem of higher.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
Module backlight of the present utility model comprises LGP and a plurality of light source, described a plurality of light source connects by lead, it is characterized in that described LGP is provided with groove, wherein said groove comprises first groove that holds described a plurality of light sources that is interconnected and holds second groove of described lead.
Preferably, described a plurality of light source is a plurality of led light sources.
Particularly, described first groove is the variable cross-section groove, comprise first upper grooves and first lower recess along described first groove of the depth direction of groove, described LED lamp is welded in first lower recess, and the bottom size of first upper grooves is less than the size of LED lamp; Described second groove is the variable cross-section groove, comprises second upper grooves and second lower recess along described second groove of the depth direction of groove, and described wire bonds is in second lower recess, and the bottom size of second upper grooves is less than the size of lead.
For the ease of LED lamp and the assembling that is connected lead, the cross section of described first upper grooves and described second upper grooves is wide at the top and narrow at the bottom trapezoidal.
Secondly, the connecting portion at described first groove and described second groove is provided with the welding operation hole.
For the ease of welding operation, the upper surface diameter in described welding operation hole is greater than the lower surface diameter.
Display unit of the present utility model comprises above-mentioned module backlight.
Module backlight and display unit that the utility model embodiment provides, because LGP is provided with groove, a plurality of light sources are with in the lead that is connected light source is arranged on described groove, saved flexible PCB, therefore avoided because flexible PCB is out of shape the bad problems such as light leak that cause, and the corresponding reduction of the cost of module backlight.Structural stability, brightness with display unit of this module backlight all promote to some extent, and cost also decreases.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the module backlight that Fig. 1 provides for the utility model embodiment;
Fig. 2 be shown in Figure 1 along A-A to cutaway view;
Fig. 3 be shown in Figure 1 along B-B to cutaway view;
Fig. 4 be shown in Figure 1 along C-C to cutaway view.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope that the utility model is protected.
As shown in Figure 1-Figure 3, the utility model embodiment provides a kind of module backlight, and this module backlight comprises LGP 10 and a plurality of light source 21, a plurality of light sources 21 connect by lead 22, and draw circuit lead 14, in order to be connected with drive circuit (not shown), form complete path.Wherein, LGP 10 is provided with groove, and wherein said groove comprises first groove 12 that holds a plurality of light sources 21 that is interconnected and second groove 11 that holds lead 22.
The module backlight that the utility model embodiment provides, because LGP is provided with groove, a plurality of light sources and lead are arranged in the described groove, therefore saved the flexible PCB that is used for installing light source and lead, thereby avoided because flexible PCB is out of shape the bad problems such as light leak that cause, and also corresponding reduction of the cost of module backlight.
Need to prove at above-described embodiment, because a plurality of light sources and lead directly are contained in the groove on the LGP, so just reduced the fit-up gap between light source and the LGP, avoid light source to engage the situation that does not closely cause light loss with LGP to a certain extent, thereby improved the brightness of backlight.And module backlight of the present utility model also avoided because of flexible PCB to cut precision relatively poor, the problem that the rosin joint that the light source failure welding produces causes the light source cisco unity malfunction even comes off.The utility model embodiment module backlight of providing has been owing to saved the flexible PCB that quality accounts for backlight 3%～4% in addition, thereby the also corresponding minimizing of its quality.In the brightness, the accurate location of light source has been arranged, brightness constancy and brightness value all can increase.
Be understandable that the described groove in above-described embodiment comprises first groove 12 and second groove 11 that is interconnected, light source 21 is contained in first groove 12, and lead 22 is contained in second groove 11.This is because the size of light source is big relatively than the size of lead usually, therefore offer corresponding groove separately respectively at light source and lead, on the one hand guarantee fit-up gap less between light source and LGP, avoid making because the groove size of holding lead is excessive the yielding problem of LGP on the other hand.
Secondly, described a plurality of light sources are preferably a plurality of led light sources.The reason of advantages such as this is based on LED and has that volume is little, high brightness, low in calories and long service life, so light source described in the embodiment of the invention adopts LED.
Particularly, first groove 12 is the variable cross-section groove, depth direction first groove 12 along groove comprises first upper grooves 121 and first lower recess 122, LED lamp 21 is welded in first lower recess 122, and the bottom size L1 of first upper grooves 121 is less than the size L2 of LED lamp 21, i.e. L1＜L2; Second groove 11 is the variable cross-section groove, depth direction second groove 11 along groove comprises second upper grooves 111 and second lower recess 112, connect lead 22 and be welded in second lower recess 122, and the bottom size D1 of second upper grooves 111 is less than the dimension D 2 of lead 22, i.e. D1＜D2.Like this, can effectively guarantee the stability of LED lamp and lead, in case it breaks away from from groove.
For the ease of the assembling of LED lamp and lead, the cross section of described first upper grooves 121 and described second upper grooves 111 is wide at the top and narrow at the bottom trapezoidal.Be convenient to the operation that press-fits of chip mounter like this.
Secondly, as shown in Figure 4, also be provided with welding operation hole 41 at the connecting portion of first groove 12 and second groove 11.Like this, a plurality of LED lamp 21 and lead 22 just can be welded on the bottom of groove by the low temperature soldering.Because the PC material (Polycarbonate Merlon) that LGP uses, heat distortion temperature is generally more than 136 °, and the tin cream fusing point of low temperature scolding tin is about 140 °, therefore a spot of low temperature scolding tin can not cause the LGP distortion in the PC material, thereby can not influence the optical characteristics of module backlight, so preferred employing low temperature soldering welding in the present embodiment.When welding fusion welding 43 from welding operation hole 41, splash into the electrical connection that pad 42 between LED lamp 21 and the lead 22 is realized LED lamps and lead, simultaneously with LED lamp and wire bonds in groove, and form solder joint shown in Figure 1 13.Such welding operation realizes two functions, has reduced the quantity of solder joint 13, has simplified assembly technology.
Preferably, the upper surface diameter in described welding operation hole 41 is greater than the lower surface diameter.Be convenient to welding operation like this.
The utility model embodiment also provides a kind of display unit, and this display unit comprises above-mentioned module backlight.
The display unit that the utility model embodiment provides, comprise above-mentioned module backlight, merely hit because LGP is provided with groove at this module backlight, a plurality of light sources are with in the lead that is connected light source is arranged on described groove, therefore saved the flexible PCB that is used for installing light source and lead, thereby avoided because flexible PCB is out of shape the bad problems such as light leak that cause, and also corresponding reduction of the cost of module backlight.Therefore the structural stability of the display unit of the utility model embodiment, brightness all promote to some extent, and cost also decreases.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (7)
1. module backlight, comprise LGP and a plurality of light source, described a plurality of light sources connect by lead, it is characterized in that, described LGP is provided with groove, and wherein said groove comprises first groove that holds described a plurality of light sources that is interconnected and holds second groove of described lead.
2. module backlight according to claim 1 is characterized in that, described a plurality of light sources are a plurality of led light sources.
3. module backlight according to claim 1 and 2, it is characterized in that, described first groove is the variable cross-section groove, comprise first upper grooves and first lower recess along described first groove of the depth direction of groove, described led light source is welded in first lower recess, and the bottom size of first upper grooves is less than the size of described light source; Described second groove is the variable cross-section groove, comprises second upper grooves and second lower recess along described second groove of the depth direction of groove, and described wire bonds is in second lower recess, and the bottom size of second upper grooves is less than the size of lead.
4. module backlight according to claim 3 is characterized in that, is provided with the welding operation hole at the connecting portion of described first groove and described second groove.
5. module backlight according to claim 4 is characterized in that, the cross section of described first upper grooves and described second upper grooves is wide at the top and narrow at the bottom trapezoidal.
6. module backlight according to claim 5 is characterized in that, the upper surface diameter in described welding operation hole is greater than the lower surface diameter.
7. a display unit comprises each described module backlight among the claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201199969U CN203115721U (en) | 2013-03-15 | 2013-03-15 | Backlight module and display device including same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201199969U CN203115721U (en) | 2013-03-15 | 2013-03-15 | Backlight module and display device including same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115721U true CN203115721U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201199969U Expired - Lifetime CN203115721U (en) | 2013-03-15 | 2013-03-15 | Backlight module and display device including same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066554A (en) * | 2016-06-30 | 2016-11-02 | 京东方科技集团股份有限公司 | A kind of backlight module and display device |
-
2013
- 2013-03-15 CN CN2013201199969U patent/CN203115721U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066554A (en) * | 2016-06-30 | 2016-11-02 | 京东方科技集团股份有限公司 | A kind of backlight module and display device |
| CN106066554B (en) * | 2016-06-30 | 2020-04-24 | 京东方科技集团股份有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150703 Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150703 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150703 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd. Patentee after: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 100176 Beijing city Daxing District economic and Technological Development Zone of Beijing Road No. 8 Patentee before: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |