CN202452309U - BLU and display unit - Google Patents
BLU and display unit Download PDFInfo
- Publication number
- CN202452309U CN202452309U CN2012200906489U CN201220090648U CN202452309U CN 202452309 U CN202452309 U CN 202452309U CN 2012200906489 U CN2012200906489 U CN 2012200906489U CN 201220090648 U CN201220090648 U CN 201220090648U CN 202452309 U CN202452309 U CN 202452309U
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- CN
- China
- Prior art keywords
- diffusion sheet
- lgp
- backlight
- dazzling screen
- tube group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a BLU (Back Light Unit) and a display unit, wherein, the BLU comprises a lamp tube set, a light guide plate, a diffusion sheet, a lower prism sheet, an upper prism sheet and a shade sheet; the diffusion sheet is arranged on the light guide plate; the diffusion sheet comprises a first end and a second end; the first end of the diffusion sheet is fixedly connected with the lamp tube set or the shade sheet; the lower prism sheet is arranged on the diffusion sheet; the upper prism sheet is arranged on the lower prism sheet; and the shade sheet is arranged on the peripheral edge of the upper prism sheet. In the BLU and the display unit, the diffusion sheet in the BLU is fixed, so that the structure of the BLU can be more reasonable and more compact, the displacement of the diffusion sheet cannot be caused when the BLU is maintained, the maintaining technology of the BLU can be optimized and improved, the undesirability of the BLU caused by maintenance can be avoided at the same time, and the display effect of the display unit can be improved.
Description
Technical field
The utility model relates to the backlight technical field, relates in particular to a kind of backlight and display unit.
Background technology
The display module that backlight (BLU, Back Light Unit) is used in the display unit provides backlight, and the illumination effect of backlight will directly have influence on the display effect of display module.
Please refer to Fig. 1 and Fig. 2, backlight of the prior art mainly comprises with lower component: light tube group 101, LGP 102, diffusion sheet 103, anti-dazzling screen 104, last prismatic lens 105 and following prismatic lens 106.Wherein, diffusion sheet 103 is unfixed with following prismatic lens 106, when the bad following prismatic lens 106 of replacing, probably can drive diffusion sheet 103 and be shifted, thereby influence backlight that backlight provides, and further influences the display effect of display unit.
The utility model content
In view of this, the utility model provides a kind of backlight and display unit, and diffusion sheet is fixed, and when the maintenance backlight, just can not cause the displacement of diffusion sheet.
For addressing the above problem, the utility model provides a kind of backlight, comprising:
Light tube group, LGP, diffusion sheet, time prismatic lens, last prismatic lens and anti-dazzling screen; Wherein, said diffusion sheet is arranged on the said LGP, and said diffusion sheet has first end and second end; First end of said diffusion sheet is fixedly connected with said light tube group or said anti-dazzling screen; Said prismatic lens down is arranged on the said diffusion sheet, and the said prismatic lens of going up is arranged on the said prismatic lens down, and said anti-dazzling screen is arranged on the edge of said upward prismatic lens.
Preferably, said light tube group comprises fluorescent tube and is arranged at the said fluorescent tube fixed head top, that be used for fixing said fluorescent tube, and said fluorescent tube is arranged at a side of said LGP, and an end of said fixed head is arranged on the said LGP.
Preferably, first end of said diffusion sheet is arranged between the fixed head and said LGP of said light tube group, and is fixed on the lower surface of said fixed head.
Preferably, first end of said diffusion sheet is arranged between the fixed head and said anti-dazzling screen of said light tube group, and is fixed on the lower surface of said anti-dazzling screen.
Preferably, said light tube group is arranged at the below of said LGP, and first end of said diffusion sheet is arranged between said LGP and the said anti-dazzling screen, and is fixed on the lower surface of said anti-dazzling screen.
The utility model also provides a kind of display unit, comprises a backlight, and said backlight comprises:
Light tube group, LGP, diffusion sheet, time prismatic lens, last prismatic lens and anti-dazzling screen; Wherein, said diffusion sheet is arranged on the said LGP, and said diffusion sheet has first end and second end; First end of said diffusion sheet is fixedly connected with said light tube group or said anti-dazzling screen; Said prismatic lens down is arranged on the said diffusion sheet, and the said prismatic lens of going up is arranged on the said prismatic lens down, and said anti-dazzling screen is arranged on the edge of said upward prismatic lens.
Preferably, said light tube group comprises fluorescent tube and is arranged at the said fluorescent tube fixed head top, that be used for fixing said fluorescent tube, and said fluorescent tube is arranged at a side of said LGP, and an end of said fixed head is arranged on the said LGP.
Preferably, first end of said diffusion sheet is arranged between the fixed head and said LGP of said light tube group, and is fixed on the lower surface of said fixed head.
Preferably, first end of said diffusion sheet is arranged between the fixed head and said anti-dazzling screen of said light tube group, and is fixed on the lower surface of said anti-dazzling screen.
Preferably, said light tube group is arranged at the below of said LGP, and first end of said diffusion sheet is arranged between said LGP and the said anti-dazzling screen, and is fixed on the lower surface of said anti-dazzling screen.
The utlity model has following beneficial effect:
Diffusion sheet in the backlight is fixed; Make that the structure of backlight is reasonable more, tight; When the maintenance backlight, just can not cause the displacement of diffusion sheet; Maintenance process to backlight brings optimization and improvement, avoids simultaneously having improved the display effect of display unit because of maintenance causes backlight bad.
Description of drawings
Fig. 1 is the cross-sectional view of backlight of the prior art;
Fig. 2 is the Facad structure sketch map of backlight of the prior art;
Fig. 3 is the maintenance flow sketch map of backlight of the prior art;
Fig. 4 is a cross-sectional view of the backlight of the utility model embodiment;
Fig. 5 is another cross-sectional view of the backlight of the utility model embodiment;
Fig. 6 is the structural representation of the wedge type LGP of the utility model embodiment;
Fig. 7 is the maintenance flow sketch map of the backlight of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail.
Please refer to Fig. 4 and Fig. 5, the backlight of the utility model embodiment comprises: light tube group 401, LGP 402, diffusion sheet 403, anti-dazzling screen 404, last prismatic lens 405 and following prismatic lens 406.
Backlight in the present embodiment is the side entrance back source; Said light tube group 401 comprises fluorescent tube 4011 and is arranged at said fluorescent tube fixed head 4,012 4011 tops, that be used for fixing said fluorescent tube 4011; Said fluorescent tube 4011 is arranged at a side of said LGP 402, and an end of said fixed head 4012 is arranged on the said LGP 402.Said fluorescent tube 4011 can be the fluorescent tube of LED (Light Emitting Diode, light emitting diode) fluorescent tube, CCFL types such as (Cathode Fluorescent Lamp, cold cathode fluorescent lamp pipes).
Said LGP 402 is used for the photoconduction that light tube group 401 is launched is gone out.
Said diffusion sheet 403 is used for the light that LGP 402 is derived is spread, to guarantee the even of light.Said diffusion sheet 403 has the first relative end and second end; Among the embodiment of the utility model; First end that a end near light tube group 401 of diffusion sheet 403 is called diffusion sheet 403; With second end that is called diffusion sheet 403 away from an end of light tube group 401 that leans on of diffusion sheet 403, wherein, first end of said diffusion sheet 403 is fixedly connected with said light tube group 401 or said anti-dazzling screen 404.
Said prismatic lens 406 down is arranged on the said diffusion sheet 403, and the said prismatic lens 405 of going up is arranged on the said prismatic lens 406 down, and last prismatic lens 405 is used for the light of diffusion sheet 403 diffusions is compiled with following prismatic lens 406, to improve the brightness of light.
Said anti-dazzling screen 404 is arranged on the edge of said upward prismatic lens 405.
As shown in Figure 1, the upper surface of the fixed head of the lower surface of anti-dazzling screen 104 of the prior art and light tube group 101 is fixed together, and wherein, the lower surface of anti-dazzling screen 104 is the adhesive tape face.Among the embodiment of the utility model, as shown in Figure 4 for fixing diffusion sheet 403, can first end of diffusion sheet 403 be arranged between the fixed head 4012 and anti-dazzling screen 404 of light tube group 401, and be fixed on the lower surface of anti-dazzling screen 404.In the present embodiment, the lower surface of anti-dazzling screen 404 can be the adhesive tape face, utilizes the fixing expansion of adhesive tape face sheet 403, certainly, also can adopt other fixed forms to fix.
LGP 402 among Fig. 4 is the wedge type LGP, and the structure of wedge type LGP is as shown in Figure 6, comprises light in part 4021 and planar portions 4022, and wherein, the thickness d 1 of light in part 4021 is greater than the thickness d 2 of planar portions 4022.Because there is thickness difference in light in part 4021 with planar portions 4022; Thereby can cause the LGP 402 and the contact-making surface of light tube group 401 to produce GAP (space) value; Bigger GAP value can cause not tight on the back light source structure, causes the backlight light beam bad, thereby influences the picture effect of display unit.
In order to overcome the defective that adopts the wedge type LGP can produce bigger GAP value; As shown in Figure 5; Among the utility model embodiment, can first end of diffusion sheet 403 be arranged between the fixed head 4012 and LGP 402 of light tube group 401, and be fixed on the lower surface of fixed head 4012.In the present embodiment, the lower surface of fixed head 4012 can be the adhesive tape face, utilizes the fixing expansion of adhesive tape face sheet 403, certainly, also can adopt other fixed forms to fix.
Above-mentioned set-up mode, in fixing diffusion sheet 403, can also reduce LGP 402 and light tube group 401 between the GAP value, to improve the compactness on the back light source structure, further improve the picture effect of display unit.
In the foregoing description, only be that to be example with the wedge type LGP describe the structure of the backlight of the utility model embodiment, not as limit; LGP in the backlight of the utility model embodiment also can be the LGP of other types, for example, and the LGP of plate-like structure etc.; Can be different according to the shape of LGP, select diffusion sheet is arranged between anti-dazzling screen and the light tube group, still be arranged between light tube group and the LGP; For example, when adopting the LGP of plate-like structure in the backlight, there is not the space between LGP and the light tube group; Thereby, can diffusion sheet be arranged between anti-dazzling screen and the light tube group.
Backlight based on the foregoing description provides is fixedly connected diffusion sheet with light tube group or anti-dazzling screen, when changing bad following prismatic lens, just can not drive diffusion sheet and be shifted.
Backlight in the foregoing description is the side entrance back source; Among other embodiment of the utility model, backlight can also be direct-light-type backlight, in direct-light-type backlight; Light tube group is the below that is arranged at LGP; At this moment, for fixing expansion sheet, can first end of expansion sheet be fixed on the lower surface of anti-dazzling screen.
In the prior art, when prismatic lens is bad instantly, according to flow process shown in Figure 3 backlight is keeped in repair usually:
Step 301: open anti-dazzling screen from the light tube group front position;
Step 302: flatten light tube group;
The reason that flattens light tube group is: when when anti-dazzling screen is opened in the light tube group front position, taking up light tube group, so need to flatten the light tube group that is taken up, cause problems such as light leak to prevent the light tube group perk.
Step 303: confirm that prismatic lens is bad down;
Step 304: change prismatic lens down;
Step 305: prismatic lens in the replacing;
Step 306: change anti-dazzling screen.
The reason of prismatic lens and anti-dazzling screen is in the replacing: in the backlight of prior art, diffusion sheet is unfixed, when changing prismatic lens; Can cause diffusion sheet to be shifted, even can cause the above diaphragm of diffusion sheet to be scratched, therefore prismatic lens under changing; The above diaphragm (going up prismatic lens and anti-dazzling screen) of diffusion sheet all need be changed, and this causes the serious consumption of backlight material, and maintenance cost is high; And cause maintenance time long, efficient is low.
Among the utility model embodiment, can adopt the mode of opening anti-dazzling screen from the light tube group tail position, backlight is keeped in repair, concrete maintenance flow is as shown in Figure 7:
Step 701: open anti-dazzling screen from the light tube group tail position;
Owing to when the light tube group tail position is opened anti-dazzling screen, can not take up light tube group, saved the step that flattens the light tube group that is taken up.
Step 702: confirm that prismatic lens is bad down;
Step 703: change prismatic lens down.
Because the diffusion sheet in the backlight of the utility model embodiment is fixed, when changing prismatic lens, can not cause diffusion sheet to be shifted; Simultaneously, can not cause the above diaphragm of diffusion sheet to be scratched, therefore prismatic lens under changing yet; The above diaphragm (going up prismatic lens and anti-dazzling screen) of diffusion sheet need not changed; Thereby solved the consumption problem of backlight material, it is long to have reduced maintenance cost and maintenance time, has improved maintenance efficiency.
The utility model embodiment also provides a kind of display unit, and it comprises above-mentioned any one backlight.Said display unit can for: liquid crystal panel, Electronic Paper, oled panel, LCD TV, DPF, mobile phone, panel computer etc. have the product or the parts of any Presentation Function.Said backlight comprises: light tube group, LGP, diffusion sheet, time prismatic lens, last prismatic lens and anti-dazzling screen; Wherein, said diffusion sheet is arranged on the said LGP, and said diffusion sheet has first end and second end; First end of said diffusion sheet is fixedly connected with said light tube group or said anti-dazzling screen; Said prismatic lens down is arranged on the said diffusion sheet, and the said prismatic lens of going up is arranged on the said prismatic lens down, and said anti-dazzling screen is arranged on the edge of said upward prismatic lens.
Backlight in the present embodiment can be the side entrance back source, and promptly light tube group is arranged at a side of LGP.In the present embodiment, said light tube group can comprise fluorescent tube and be arranged at the said fluorescent tube fixed head top, that be used for fixing said fluorescent tube, and said fluorescent tube is arranged at a side of said LGP, and an end of said fixed head is arranged on the said LGP.
In the backlight of side entering type structure, first end of said diffusion sheet can be arranged between the fixed head and said LGP of said light tube group, and is fixed on the lower surface of said fixed head.
LGP among the utility model embodiment can be polytype LGP, for example, and the LGP of wedge type LGP, plate-like structure etc.; When LGP is the wedge type LGP; Second end of diffusion sheet is arranged between said light tube group and the said LGP, in fixing diffusion sheet, can also reduce LGP and light tube group between the GAP value; To improve the compactness on the back light source structure, further improve the picture effect of display unit.
In addition, first end of said diffusion sheet also can be arranged between the fixed head and said anti-dazzling screen of said light tube group, and is fixed on the lower surface of said anti-dazzling screen.
Backlight in the present embodiment also can be a direct-light-type backlight; It is the below that said light tube group is arranged at said LGP; At this moment, first end of said diffusion sheet can be arranged between said LGP and the said anti-dazzling screen, and is fixed on the lower surface of said anti-dazzling screen.
The display unit that provides through the foregoing description; Diffusion sheet in the backlight is fixed; Make backlight structure more rationally, closely, when the maintenance backlight, just can not cause the displacement of diffusion sheet, the maintenance process of backlight is brought optimizes and improve; Avoid simultaneously having improved the display effect of display unit because of maintenance causes backlight bad.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (10)
1. a backlight is characterized in that, comprising:
Light tube group, LGP, diffusion sheet, time prismatic lens, last prismatic lens and anti-dazzling screen; Wherein, said diffusion sheet is arranged on the said LGP, and said diffusion sheet has first end and second end; First end of said diffusion sheet is fixedly connected with said light tube group or said anti-dazzling screen; Said prismatic lens down is arranged on the said diffusion sheet, and the said prismatic lens of going up is arranged on the said prismatic lens down, and said anti-dazzling screen is arranged on the edge of said upward prismatic lens.
2. backlight as claimed in claim 1; It is characterized in that; Said light tube group comprises fluorescent tube and is arranged at the said fluorescent tube fixed head top, that be used for fixing said fluorescent tube, and said fluorescent tube is arranged at a side of said LGP, and an end of said fixed head is arranged on the said LGP.
3. backlight as claimed in claim 2 is characterized in that, first end of said diffusion sheet is arranged between the fixed head and said LGP of said light tube group, and is fixed on the lower surface of said fixed head.
4. backlight as claimed in claim 2 is characterized in that, first end of said diffusion sheet is arranged between the fixed head and said anti-dazzling screen of said light tube group, and is fixed on the lower surface of said anti-dazzling screen.
5. backlight as claimed in claim 1 is characterized in that said light tube group is arranged at the below of said LGP, and first end of said diffusion sheet is arranged between said LGP and the said anti-dazzling screen, and is fixed on the lower surface of said anti-dazzling screen.
6. a display unit comprises a backlight, it is characterized in that, said backlight comprises:
Light tube group, LGP, diffusion sheet, time prismatic lens, last prismatic lens and anti-dazzling screen; Wherein, said diffusion sheet is arranged on the said LGP, and said diffusion sheet has first end and second end; First end of said diffusion sheet is fixedly connected with said light tube group or said anti-dazzling screen; Said prismatic lens down is arranged on the said diffusion sheet, and the said prismatic lens of going up is arranged on the said prismatic lens down, and said anti-dazzling screen is arranged on the edge of said upward prismatic lens.
7. display unit as claimed in claim 6; It is characterized in that; Said light tube group comprises fluorescent tube and is arranged at the said fluorescent tube fixed head top, that be used for fixing said fluorescent tube, and said fluorescent tube is arranged at a side of said LGP, and an end of said fixed head is arranged on the said LGP.
8. display unit as claimed in claim 7 is characterized in that, first end of said diffusion sheet is arranged between the fixed head and said LGP of said light tube group, and is fixed on the lower surface of said fixed head.
9. display unit as claimed in claim 7 is characterized in that, first end of said diffusion sheet is arranged between the fixed head and said anti-dazzling screen of said light tube group, and is fixed on the lower surface of said anti-dazzling screen.
10. display unit as claimed in claim 6 is characterized in that said light tube group is arranged at the below of said LGP, and first end of said diffusion sheet is arranged between said LGP and the said anti-dazzling screen, and is fixed on the lower surface of said anti-dazzling screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200906489U CN202452309U (en) | 2012-03-12 | 2012-03-12 | BLU and display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200906489U CN202452309U (en) | 2012-03-12 | 2012-03-12 | BLU and display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202452309U true CN202452309U (en) | 2012-09-26 |
Family
ID=46868172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200906489U Expired - Lifetime CN202452309U (en) | 2012-03-12 | 2012-03-12 | BLU and display unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202452309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508936A (en) * | 2016-01-26 | 2016-04-20 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN106195765A (en) * | 2016-07-12 | 2016-12-07 | 京东方科技集团股份有限公司 | Backlight and display device |
| CN113721389A (en) * | 2021-09-01 | 2021-11-30 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2012
- 2012-03-12 CN CN2012200906489U patent/CN202452309U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508936A (en) * | 2016-01-26 | 2016-04-20 | 武汉华星光电技术有限公司 | Backlight module and display device |
| US10012786B2 (en) | 2016-01-26 | 2018-07-03 | Wuhan China Star Optoelectronics Technology Co., Ltd | Backlight modules and display devices |
| CN105508936B (en) * | 2016-01-26 | 2019-05-28 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN106195765A (en) * | 2016-07-12 | 2016-12-07 | 京东方科技集团股份有限公司 | Backlight and display device |
| CN113721389A (en) * | 2021-09-01 | 2021-11-30 | 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |
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| CX01 | Expiry of patent term |