CN202598313U - Backlight module, liquid crystal display and liquid crystal display television - Google Patents
Backlight module, liquid crystal display and liquid crystal display television Download PDFInfo
- Publication number
- CN202598313U CN202598313U CN 201220186579 CN201220186579U CN202598313U CN 202598313 U CN202598313 U CN 202598313U CN 201220186579 CN201220186579 CN 201220186579 CN 201220186579 U CN201220186579 U CN 201220186579U CN 202598313 U CN202598313 U CN 202598313U
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- lamp bar
- lgp
- module backlight
- light
- backboard
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Abstract
The utility model discloses a back light module, a liquid crystal display and a liquid crystal display television, and primarily aims to provide a back light module of which the distance between a back light source and a light guide plate is fixed. The back light module comprises a back panel, the light guide plate and light bar components arranged on the light-incident side of the light guide plate, wherein the light bar components are arranged on the back panel in a movable mode; the light guide plate is fixedly connected to the back panel; the back panel comprises a bottom plate and side plates which are arranged at the periphery of the bottom plate and perpendicular to the bottom plate; and certain clearances are formed between light source components and the side plates. By the back light module, the liquid crystal display and the liquid crystal display television, the light guide plate in the back light module and a back light source component are fixedly connected, so that the distance between the light guide plate and the back light source is kept constant, and the light incidence rate of the back light source is increased.
Description
Technical field
The utility model relates to a kind of module backlight, LCD and LCD TV.
Background technology
At present, LCD is pursued ultra-thin design gradually, and under this trend, the module backlight in the LCD usually need be accomplished ultra-thin ultra narrow design.As shown in Figure 1; LGP 2 is movably arranged on lamp bar assembly 3 in traditional in the past module backlight, and lamp bar assembly 3 is installed on the backboard 1 through rivet, and LGP is because high temperature expands distortion; So between the lamp bar 4 of lamp bar assembly and LGP, leave the gap; But often, and a lot of light that send of backlight can not be taken in the LGP fully, thereby wasted the light inlet rate that light efficiency has reduced backlight because gap width is excessive.
The utility model content
To the problems referred to above, the utility model provides a kind of module backlight that the spacing of LGP and lamp bar is fixing.
For achieving the above object; The utility model module backlight; The lamp bar assembly that comprises backboard, LGP and be arranged on said LGP light incident sides, said LGP are fixedly connected said lamp bar assembly, and said lamp bar assembly is installed on the said backboard movably.
Further, said backboard comprises base plate and is arranged at the periphery of said base plate and perpendicular to the side plate of said base plate, is provided with certain interval between said light source assembly and the said side plate.
Particularly; Said light source assembly; Comprise circuit board that parallel said LGP light incident sides is provided with and with said circuit board fixed head connected vertically; Wherein said lamp bar is fixed on the said circuit board, and said lamp bar constitutes a parallel plane over against said LGP light incident sides, and said fixed head is installed on the said backboard.
Further, said backboard is provided with the installing hole of the said lamp bar assembly of some installations.
In a specific embodiment, said LGP and said lamp bar fixture are fixed through rivet.
Especially, said light source assembly is installed on the backboard through the screw that comprises straight body portion and tapping portion, and the section radius of wherein said straight body portion is greater than the section radius of said tapping portion, in said tapping portion, is provided with screw thread.
Preferably, said lamp bar is a LED lamp bar.
Especially, said installing hole is oval.
For achieving the above object, the utility model LCD comprises module backlight, and said module backlight is above-mentioned module backlight.
For achieving the above object, the utility model LCD TV comprises LCD, and said LCD is above-mentioned LCD.
The utility model module backlight, LCD and LCD TV; Through being fixedly connected the spacing that makes between LGP and the lamp bar with the lamp bar assembly, fixes LGP; Thereby reduced the light inlet gap, improved the light inlet rate of LGP, simultaneously this backlight has been applied in the liquid display panel; Improved the image quality of LCD, this LCD has been improved the picture brightness of LCD TV as the display of LCD TV.
Description of drawings
Fig. 1 is the structural representation of the module backlight of prior art;
Fig. 2 is the structural representation of first kind of embodiment of the utility model module backlight;
Fig. 3 is the structural representation of second kind of embodiment of the utility model module backlight;
Fig. 4 is the structural representation of the third embodiment of the utility model module backlight;
Fig. 5 is the structural representation of the screw of the utility model module backlight;
Fig. 6 is that installing hole is the structural representation of track shape on the backboard of the utility model module backlight;
Fig. 7 is that installing hole is oval-shaped structural representation on the backboard of the utility model module backlight;
Fig. 8 is the LGP of the utility model module backlight and the light emitting structures sketch map of lamp bar.
The specific embodiment
Below in conjunction with Figure of description the utility model is done further description.
LGP is the acryl/PC sheet material that utilizes optical grade, with having the high reflectivity and the high-tech material of extinction not, stamps the leaded light point in the acryl sheet material bottom surface of optical grade with the UV screen printing technology then.The light that utilizes optical grade acryl sheet material to draw to send from lamp is in the stop on optical grade acryl sheet material surface, and when light was mapped to each leaded light point, reverberation can destroy conditioned reflex by the positive ejaculation of LGP then toward all angles diffusion.Through various densitys, leaded light point not of uniform size, can make the LGP uniformly light-emitting.In the light reflected back LGP that the purposes of reflector plate is the bottom surface is exposed, be used for improving the service efficiency of light.LGP is the important component part of module backlight.Because the particularity of its material, at high temperature can producing expands is moved.
Module backlight is one of key part and component of panel of LCD.Function is well-off brightness and the light source that is evenly distributed, and makes its normally show image.Generally speaking, module backlight can be divided into preceding light formula (Front light) and two kinds of backlight types (Back light), and backlight type can to do classification in the position of fluorescent tube, be divided into side-light type structure and full run-down type structure according to the requirement of its scale.
The side-light type structure, light emitting source is the single Zhi Guangyuan of pendulum at side, LGP is adopted ejection formation does not have the printing-type design; Light emitting source is the single Zhi Guangyuan of pendulum at side; LGP is adopted ejection formation does not have printing-type design, and the light source design of its side incident has the characteristic of light weight, slim, narrow frameization, low power consumption; Can think the light source of mobile phone, personal digital assistant, notebook computer, can also adopt the side-light type structure for large scale module backlight.
The module backlight of full run-down type structure oversize, the full run-down type structure that does not contain LGP and light source placement below just is developed.Light source is penetrated by behind the baffle reflection by spontaneous light source (for example fluorescent tube, light-emittingdiode etc.); Upwards, diffuser plate penetrates after evenly disperseing in the front; Because of accommodation space becomes big; Fluorescent tube can use 2 at the most fluorescent tubes according to TFT panel size, but the described module backlight of thickness, weight, power consumption, the utility model that has also increased module simultaneously is mainly used in the liquid crystal display like photo structure of the two minor faces of large scale.
The utility model module backlight changes lamp bar and the fixed form of LGP in the original structure of module backlight; Originally LGP was movably connected on the lamp bar assembly; The lamp bar assembly is fixed on the backboard; LGP is heated and causes that dilatancy makes the pitch smaller between light incident sides and the lamp bar, probably can be pressed onto the damage that the lamp bar causes the lamp bar as crossing the too small LGP of spacing, should with and the lamp bar assembly is lived and LGP between spacing strengthen.As shown in Figure 8, when rising angle one timing of lamp bar, the gap between lamp bar 4 and the LGP 2 is big more, and the light inlet rate of LGP is just low more.The utility model module backlight is fixedly connected the lamp bar assembly with LGP; It is enough little that gap between LGP and the lamp bar is accomplished, can drive the lamp bar assembly when LGP expands and move together, and this structure has effectively guaranteed the light inlet rate of LGP; Avoided the waste of light source; This structure applications has been practiced thrift the power consumption of backlight when having improved the liquid crystal panel image quality in LCD and LCD TV, avoided the lamp bar owing to the damage that is taken place by the LGP extruding in addition.The utility model module backlight is designed to track shape or ellipsoidal structure with the installing hole on the backboard simultaneously, cooperates special screw to make things convenient for the activity of lamp bar assembly on backboard.
First embodiment:
As shown in Figure 2; The utility model module backlight; Comprise backboard 1, LGP 2 and the lamp bar assembly 3 that is arranged on said LGP light incident sides; Said LGP is fixedly connected said lamp bar assembly, and said lamp bar assembly is installed on the said backboard movably, and said LGP and said lamp bar fixture are fixed through rivet.
Further, said backboard comprises base plate and is arranged at the periphery of said base plate and perpendicular to the side plate of said base plate, is provided with certain interval between said light source assembly and the said side plate.
Particularly; Said light source assembly; Comprise circuit board that parallel said LGP light incident sides is provided with and with said circuit board fixed head connected vertically; Wherein said lamp bar is fixed on the said circuit board, and said lamp bar 4 constitutes a parallel plane over against said LGP light incident sides, and said fixed head is installed on the said backboard.
During use; With lamp bar fixation kit, backboard is a groove shape structure on the backboard through movable being installed in of rivet, between lamp bar fixation kit and the lamp bar certain spacing is arranged; LGP and lamp bar fixation kit are fixed, LGP can be fixedly connected through rivet with lamp bar fixation kit again.So far LED lamp bar on the lamp bar fixture and the spacing between the LGP are fixed, and form an airtight relatively space, can prevent effectively that the light of backlight LED lamp bar from leaking, and have avoided the generation of light leakage phenomena.
As shown in Figure 8, the gap between LGP and the lamp bar is A, under the certain situation of the rising angle of lamp bar, the light inlet rate that minimum can improve LGP is transferred in the gap between lamp bar and the LGP.
The utility model LCD comprises module backlight, and said module backlight is above-mentioned module backlight.
With 55 cun LCDs is example, and traditional in the past fixed structure is because will consider expanding with heat and contract with cold of LGP, and the LGP material is PMMA; Physical characteristic is that every 100mm length expansion limit is about 0.3mm; Appearance and size is 1233.4X708.3mm, and the length direction limit is expanded to 3.7mm, and is mostly two minor face light entrance structures thereofs on the large scale TV now; Be that the right and left all can be placed LED lamp bar, so LGP and the monolateral design load of LED lamp interspace are A=3.7/2=1.85mm.LGP and LED lamp bar assembly are formed one; LED lamp bar assembly is expanded with heat and contract with cold with LGP; Thereby can the A value be reduced to 0.6mm, compare with safety clearance 1.85mm that traditional design keeps and reduced 1.25mm, promote the optical efficiency of going into of LED greatly.
The utility model LCD TV comprises LCD, and said LCD is above-mentioned LCD.
Second embodiment:
As shown in Figure 3; The utility model module backlight; Comprise backboard 1, LGP 2 and the lamp bar assembly 3 that is arranged on said LGP light incident sides; Said LGP is fixedly connected said lamp bar assembly, and said LGP and said lamp bar assembly are fixed through double faced adhesive tape, and said lamp bar assembly is installed on the said backboard movably.
Further, said backboard comprises base plate and is arranged at the periphery of said base plate and perpendicular to the side plate of said base plate, is provided with certain interval between said light source assembly and the said side plate.
Particularly; Said light source assembly; Comprise circuit board that parallel said LGP light incident sides is provided with and with said circuit board fixed head connected vertically; Wherein said lamp bar 4 is fixed on the said circuit board, and said lamp bar constitutes a parallel plane over against said LGP light incident sides, and said fixed head is installed on the said backboard.
Further, the base plate of said backboard is provided with the installing hole of the said lamp bar assembly of some installations.
Distinguishingly, said light source assembly is installed on the backboard through the screw that comprises straight body portion 62 and tapping portion 61, and the section radius of wherein said straight body portion 62 is greater than the section radius of said tapping portion, in said tapping portion, is provided with screw thread.
As shown in Figure 6, especially, said installing hole is the track shape structure.
During use; With lamp bar fixation kit; Pass the installing hole that is arranged on the backboard through screw and be installed in that backboard is a groove shape structure on the backboard, between lamp bar fixation kit and the lamp bar certain spacing is arranged, again LGP and lamp bar fixation kit are fixed through double faced adhesive tape.So far LED lamp bar on the lamp bar fixture and the spacing between the LGP are fixed; When the lamp bar assembly is installed on the backboard; The tapping portion of said screw connects said lamp bar assembly, the straight body portion of the sheathed said screw thread of installing hole, and the structure of track shape makes things convenient for moving of screw; The moving direction of restriction screw is avoided the generation of LGP and lamp bar inconsistent phenomenon.LGP and lamp bar form an airtight relatively space, can prevent effectively that the light of backlight LED lamp bar from leaking, and have avoided the generation of light leakage phenomena.
As shown in Figure 7, especially, said installing hole is an ellipsoidal structure.
During use; With lamp bar fixation kit; Pass the installing hole that is arranged on the backboard through screw and be installed in that backboard is a groove shape structure on the backboard, between lamp bar fixation kit and the lamp bar certain spacing is arranged, again LGP and lamp bar fixation kit are fixed through double faced adhesive tape.So far LED lamp bar on the lamp bar fixture and the spacing between the LGP are fixed; When the lamp bar assembly is installed on the backboard; The tapping portion of said screw connects said lamp bar assembly, the straight body portion of the sheathed said screw thread of installing hole, and oval-shaped structure makes things convenient for moving of screw; The moving direction of restriction screw is avoided the generation of LGP and lamp bar inconsistent phenomenon.LGP and lamp bar form an airtight relatively space, can prevent effectively that the light of backlight LED lamp bar from leaking, and have avoided the generation of light leakage phenomena.
As shown in Figure 8, the gap between LGP and the lamp bar is A, under the certain situation of the rising angle of lamp bar, the light inlet rate that minimum can improve LGP is transferred in the gap between lamp bar and the LGP.
The utility model LCD comprises module backlight, and said module backlight is above-mentioned module backlight.
With 55 cun LCDs is example, and traditional in the past fixed structure is because will consider expanding with heat and contract with cold of LGP, and the LGP material is PMMA; Physical characteristic is that every 100mm length expansion limit is about 0.3mm; Appearance and size is 1233.4X708.3mm, and the length direction limit is expanded to 3.7mm, and is mostly two minor face light entrance structures thereofs (like figure one) on the large scale TV now; Be that the right and left all can be placed LED lamp bar, so LGP and the monolateral design load of LED lamp interspace are A=3.7/2=1.85mm.LGP and LED lamp bar assembly are formed one; LED lamp bar assembly is expanded with heat and contract with cold with LGP; Thereby can the A value be reduced to 0.6mm, compare with safety clearance 1.85mm that traditional design keeps and reduced 1.25mm, promote the optical efficiency of going into of LED greatly.
The utility model LCD TV comprises LCD, and said LCD is above-mentioned LCD.
The 3rd embodiment:
As shown in Figure 4; The utility model module backlight; Comprise backboard 1, LGP 2 and the lamp bar assembly 3 that is arranged on said LGP light incident sides; Said LGP is fixedly connected said lamp bar assembly, and said LGP and said lamp bar assembly are fixing through rivet 5, and said lamp bar assembly is installed on the said backboard movably.
Further, said backboard comprises base plate and is arranged at the periphery of said base plate and the side plate that said base plate has certain angle, is provided with certain interval between said light source assembly and the said side plate.
Particularly; Said light source assembly; Comprise circuit board that parallel said LGP light incident sides is provided with and with said circuit board fixed head connected vertically; Wherein said lamp bar 4 is fixed on the said circuit board, and said lamp bar constitutes a parallel plane over against said LGP light incident sides, and said fixed head is installed on the said backboard.
As shown in Figure 6, the base plate of said backboard is provided with the track shape installing hole of the said lamp bar assembly of some installations.
Distinguishingly, said light source assembly is installed on the backboard through the screw that comprises straight body portion 62 and tapping portion 61, and the section radius of wherein said straight body portion 62 is greater than the section radius of said tapping portion, in said tapping portion, is provided with screw thread.
During use; With lamp bar fixation kit; Pass the installing hole that is arranged on the backboard through screw and be installed in that backboard is a groove shape structure on the backboard, between lamp bar fixation kit and the lamp bar certain spacing is arranged, again LGP and lamp bar fixation kit are fixed through rivet.So far LED lamp bar on the lamp bar fixture and the spacing between the LGP are fixed; When the lamp bar assembly is installed on the backboard; The tapping portion of said screw connects said lamp bar assembly, the straight body portion of the sheathed said screw thread of installing hole, and the structure of track shape makes things convenient for moving of screw; The moving direction of restriction screw is avoided the generation of LGP and lamp bar inconsistent phenomenon.LGP and lamp bar form an airtight relatively space, can prevent effectively that the light of backlight LED lamp bar from leaking, and have avoided the generation of light leakage phenomena.
As shown in Figure 8, the gap between LGP and the lamp bar is A, under the certain situation of the rising angle of lamp bar, the light inlet rate that minimum can improve LGP is transferred in the gap between lamp bar and the LGP.
The utility model LCD comprises module backlight, and said module backlight is above-mentioned module backlight.
With 55 cun LCDs is example, and traditional in the past fixed structure is because will consider expanding with heat and contract with cold of LGP, and the LGP material is PMMA; Physical characteristic is that every 100mm length expansion limit is about 0.3mm; Appearance and size is 1233.4X708.3mm, and the length direction limit is expanded to 3.7mm, and is mostly two minor face light entrance structures thereofs (like figure one) on the large scale TV now; Be that the right and left all can be placed LED lamp bar, so LGP and the monolateral design load of LED lamp interspace are A=3.7/2=1.85mm.LGP and LED lamp bar assembly are formed one; LED lamp bar assembly is expanded with heat and contract with cold with LGP; Thereby can the A value be reduced to 0.6mm, compare with safety clearance 1.85mm that traditional design keeps and reduced 1.25mm, promote the optical efficiency of going into of LED greatly.
The utility model LCD TV comprises LCD, and said LCD is above-mentioned LCD.
More than; Be merely the preferred embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain that claim was defined.
Claims (10)
1. module backlight, the lamp bar assembly that comprises backboard, LGP and be arranged on said LGP light incident sides is characterized in that: said LGP is fixedly connected said lamp bar assembly, and said lamp bar assembly is installed on the said backboard movably.
2. according to right 1 described module backlight, it is characterized in that: said backboard comprises base plate and is arranged at the periphery of said base plate and perpendicular to the side plate of said base plate, is provided with certain interval between said light source assembly and the said side plate.
3. module backlight according to claim 1; It is characterized in that: said light source assembly; Comprise circuit board that parallel said LGP light incident sides is provided with and with said circuit board fixed head connected vertically; Wherein said lamp bar is fixed on the said circuit board, and said lamp bar constitutes a parallel plane over against said LGP light incident sides, and said fixed head is installed on the said backboard.
4. module backlight according to claim 1 is characterized in that: said backboard is provided with the installing hole of the said lamp bar assembly of some installations.
5. module backlight according to claim 1 is characterized in that: said LGP and said lamp bar fixture are fixed through rivet.
6. module backlight according to claim 1; It is characterized in that: said light source assembly is installed on the backboard through the screw that comprises straight body portion and tapping portion; The section radius of wherein said straight body portion is greater than the section radius of said tapping portion, in said tapping portion, is provided with screw thread.
7. module backlight according to claim 3 is characterized in that: said lamp bar is a LED lamp bar.
8. module backlight according to claim 3 is characterized in that: said installing hole is for oval.
9. a LCD comprises module backlight, it is characterized in that: said module backlight is the arbitrary described module backlight of claim 1 to 8.
10. a LCD TV comprises LCD, it is characterized in that: said LCD is the described LCD of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186579 CN202598313U (en) | 2012-04-27 | 2012-04-27 | Backlight module, liquid crystal display and liquid crystal display television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186579 CN202598313U (en) | 2012-04-27 | 2012-04-27 | Backlight module, liquid crystal display and liquid crystal display television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202598313U true CN202598313U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186579 Expired - Lifetime CN202598313U (en) | 2012-04-27 | 2012-04-27 | Backlight module, liquid crystal display and liquid crystal display television |
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| Country | Link |
|---|---|
| CN (1) | CN202598313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708456A (en) * | 2019-11-27 | 2020-01-17 | Oppo广东移动通信有限公司 | Externally hung lens assembly and electronic equipment |
| CN113075821A (en) * | 2021-04-02 | 2021-07-06 | 深圳市众铭安科技有限公司 | LED backlight module |
-
2012
- 2012-04-27 CN CN 201220186579 patent/CN202598313U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708456A (en) * | 2019-11-27 | 2020-01-17 | Oppo广东移动通信有限公司 | Externally hung lens assembly and electronic equipment |
| CN113075821A (en) * | 2021-04-02 | 2021-07-06 | 深圳市众铭安科技有限公司 | LED backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |