CN202132807U - Back light module and liquid crystal display - Google Patents
Back light module and liquid crystal display Download PDFInfo
- Publication number
- CN202132807U CN202132807U CN201120248361U CN201120248361U CN202132807U CN 202132807 U CN202132807 U CN 202132807U CN 201120248361 U CN201120248361 U CN 201120248361U CN 201120248361 U CN201120248361 U CN 201120248361U CN 202132807 U CN202132807 U CN 202132807U
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- polarizer
- lgp
- light source
- module backlight
- light
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 239000012528 membrane Substances 0.000 claims description 15
- 238000001746 injection moulding Methods 0.000 claims description 4
- 230000010287 polarization Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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Abstract
The utility model discloses a back light module and a liquid crystal display. The back light module comprises a light source and a light guide plate, wherein the light source is arranged at the side edge of the light guide plate, and the back light module also comprise a polarizing element which is arranged between the light source and the light guide plate. In the utility model, the polarizing element arranged between the light source and the light guide plate can be used for supplying a liquid crystal display panel with polarizing light, a polarizing sheet does not need to be arranged on an array substrate. Compared with the prior art, the polarizing sheet arranged on the liquid crystal display panel is omitted, so that the transparency of the liquid crystal display panel is improved.
Description
Technical field
The utility model relates to lcd technology, particularly a kind of module backlight and LCD.
Background technology
LCD is a flat-panel monitor commonly used at present, and wherein Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display is called for short TFT-LCD) is the main product in the LCD.
LCD of the prior art comprises: display panels and module backlight, display panels comprise color membrane substrates and the array base palte that box is provided with, and are filled with liquid crystal between color membrane substrates and the array base palte.Because display panels need utilize polarised light realize to show, so the both sides up and down of display panels all need be provided with polarizer, promptly polarizer is being set on the color membrane substrates and polarizer is set on array base palte.The natural daylight that light source in the module backlight sends forms polarised light through polarizer, shows for display panels.
When this LCD is used to carry out transparent demonstration, need this LCD to have higher transparency.But, in the prior art,, thereby cause the transparency of display panels lower because the both sides of display panels all are provided with polarizer.
The utility model content
The utility model provides a kind of module backlight and LCD, in order to improve the transparency of display panels.
For realizing above-mentioned purpose, the utility model provides a kind of module backlight, comprises light source and LGP, and said light source is arranged at the side of said LGP, also comprises polarizer, and said polarizer is arranged between said light source and the said LGP.
Further, said light source is arranged at least one side of said LGP, and the quantity of said polarizer equals the quantity of said light source.
Further, said light source is arranged at least one side of said LGP, and the quantity of said polarizer is less than the quantity of said light source.
Further, said polarizer comprises polarizer.
Further, said polarizer is a reflection type polarizer.
Further, said light source comprises light emitting diode or cathode fluorescent tube.
Further, said polarizer is arranged on the side of said LGP.
Further, also comprise reflecting plate, said reflecting plate is around in the outside of said light source.
For realizing above-mentioned purpose; The present invention also provides a kind of LCD; Comprise: display panels and above-mentioned module backlight, said display panels comprise color membrane substrates and the array base palte that box is provided with, and are filled with liquid crystal between said color membrane substrates and the said array base palte; Said module backlight is arranged at the outside of said array base palte, and said color membrane substrates is provided with polarizer.
Further, said LGP comprises nanometer LGP, injection moulding LGP or printing net-point LGP.
The utlity model has following beneficial effect:
In the module backlight that the utility model provides and the technical scheme of LCD, module backlight comprises light source, LGP and polarizer, and light source is arranged at the side of LGP, and polarizer is arranged between light source and the LGP.The utility model can provide polarised light to display panels through the polarizer that is arranged between light source and the LGP; Need not on array base palte, to be provided with polarizer; Compared with prior art reduce a polarizer that is arranged on the display panels, thereby improved the transparency of display panels.
Description of drawings
The structural representation of a kind of module backlight that Fig. 1 provides for the utility model embodiment one;
The structural representation of a kind of module backlight that Fig. 2 provides for the utility model embodiment two;
The structural representation of a kind of LCD that Fig. 3 provides for the utility model embodiment three.
The specific embodiment
For making those skilled in the art understand the technical scheme of the utility model better, module backlight and the LCD that the utility model provides is described in detail below in conjunction with accompanying drawing.
The structural representation of a kind of module backlight that Fig. 1 provides for the utility model embodiment one; As shown in Figure 1; This module backlight comprises: comprise light source 1, LGP 2 and polarizer 3, light source 1 is arranged at the side of LGP 2, and polarizer 3 is arranged between light source 1 and the LGP 2.
In the present embodiment, polarizer 3 can be arranged between centre position, light source 1 and the LGP 2 between light source 1 and the LGP 2 near between the position of light source 1 or light source 1 and the LGP 2 near the position of LGP 2.Preferably, polarizer 3 is arranged on the side of LGP 2, particularly, can polarizer 3 be attached on the side of LGP 2.
In the present embodiment, light source 1 is arranged at a side of LGP 2, and then correspondingly, polarizer 3 is arranged at a side of LGP 2.At this moment, the quantity of light source 1 is one.In the present embodiment, polarizer 3 is for producing the film material of polarised light.For example: polarizer 3 can comprise polarizer.Preferably, this polarizer can (Dual-Brightness Enhance Film be called for short: DEBEF) for reflection type polarizer.
In the present embodiment, light source 1 can comprise light emitting diode (light-emitting diode, hereinafter to be referred as: LED) or cathode fluorescent tube (Cold Cathode Fluorescent Lamp, hereinafter to be referred as: CCFL).
In the present embodiment, LGP 2 can adopt nanometer LGP, injection moulding LGP or printing net-point LGP.Wherein, when this module backlight was applied to transparent demonstration, LGP 2 was preferably nanometer LGP or injection moulding LGP.
Further, the module backlight in the present embodiment can also comprise: reflecting plate 6, reflecting plate 6 is around in the outside of light source 1.The natural daylight that reflecting plate 6 sends light source 1 reflexes to polarizer 3.
The module backlight that present embodiment provides comprises light source, LGP and polarizer; Light source is arranged at the side of LGP; Polarizer is arranged between light source and the LGP; Polarizer can convert the natural daylight that light source sends into polarised light, to display panels polarised light is provided for LGP.Present embodiment can provide polarised light to display panels through the polarizer that is arranged between light source and the LGP; Need not on array base palte, to be provided with polarizer; Compared with prior art reduce a polarizer that is arranged on the display panels, thereby improved the transparency of display panels.And, therefore satisfied the requirement that this LCD of needs had higher transparency when LCD was used to carry out transparent the demonstration because this display panels has higher transparency.In the present embodiment; Only need between light source and LGP, polarizer to be set; Need not on array base palte, to be provided with polarizer; The area that is arranged at the polarizer between light source and the LGP is less than the polarizer that is provided with on the array base palte in the prior art, so present embodiment reduced the usable floor area of polarizer on the whole, thereby reduced the cost of LCD.
The structural representation of a kind of module backlight that Fig. 2 provides for the utility model embodiment two; As shown in Figure 2; Module backlight in the present embodiment and the difference of the foregoing description one are: light source 1 is arranged at four sides of LGP 2, and then correspondingly, polarizer 3 is arranged at four sides of LGP 2; At this moment, the quantity of light source 1 is four; And in the present embodiment, polarizer 3 is arranged at the centre position between light source 1 and the LGP 2.Need to prove: in the present embodiment for clearly expressing the position of light source and polarizer, employing be the plan structure sketch map of module backlight.
In the present embodiment; Polarised light is a linearly polarized light; The linear polarization that then is arranged at the linearly polarized light that the polarizer 3 of 2 four sides of LGP produces is identical, and the linear polarization that promptly is arranged at the linearly polarized light that the polarizer 3 of 2 four sides of LGP produces keeps same direction.
Further, module backlight can also comprise: reflecting plate, this reflecting plate is around in the outside of light source 1.For clearly expressing light source and polarizer, reflecting plate does not draw among Fig. 2.
Alternatively, light source also can be arranged at two sides of LGP, and then correspondingly, polarizer is arranged at two sides of LGP, and at this moment, the quantity of light source 1 is two.When polarised light is a linearly polarized light, the linear polarization that is arranged at the linearly polarized light that the polarizer 3 of 2 two sides of LGP produces is identical.
Alternatively, light source also can be arranged at three sides of LGP, and then correspondingly, polarizer is arranged at three sides of LGP, and at this moment, the quantity of light source 1 is three.When polarised light is a linearly polarized light, the linear polarization that is arranged at the linearly polarized light that the polarizer 3 of 2 three sides of LGP produces is identical.
The module backlight that present embodiment provides comprises light source, LGP and polarizer; Light source is arranged at the side of LGP; Polarizer is arranged between light source and the LGP; Polarizer can convert the natural daylight that light source sends into polarised light, to display panels polarised light is provided for LGP.Present embodiment can provide polarised light to display panels through the polarizer that is arranged between light source and the LGP; Need not on array base palte, to be provided with polarizer; Compared with prior art reduce a polarizer that is arranged on the display panels, thereby improved the transparency of display panels.And, therefore satisfied the requirement that this LCD of needs had higher transparency when LCD was used to carry out transparent the demonstration because this display panels has higher transparency.In the present embodiment; Only need between light source and LGP, polarizer to be set; Need not on array base palte, to be provided with polarizer; The area that is arranged at the polarizer between light source and the LGP is less than the polarizer that is provided with on the array base palte in the prior art, so present embodiment reduced the usable floor area of polarizer on the whole, thereby reduced the cost of LCD.
The structural representation of a kind of LCD that Fig. 3 provides for the utility model embodiment three; As shown in Figure 3; This LCD comprises: display panels and module backlight, display panels comprise the color membrane substrates 7 and array base palte 8 that box is provided with, and are filled with liquid crystal 9 between color membrane substrates 7 and the array base palte 8; Module backlight is arranged at the outside of array base palte 8, and color membrane substrates 7 is provided with polarizer 10.
In the present embodiment, polarizer 10 is for producing the film material of polarised light.For example: polarizer 10 can be polarizer.
Module backlight can adopt the module backlight among the foregoing description one or the embodiment two, and the description of module backlight can be repeated no more referring to the description among embodiment one or the embodiment two here.Module backlight in the present embodiment is an example with the embodiment among Fig. 2 two.
The LCD that present embodiment provides comprises display panels and module backlight; Display panels comprises color membrane substrates and the array base palte that box is provided with, and is filled with liquid crystal between color membrane substrates and the array base palte, and module backlight is arranged at the outside of array base palte; Color membrane substrates is provided with polarizer; Module backlight comprises light source, LGP and polarizer, and light source is arranged at the side of LGP, and polarizer is arranged between light source and the LGP; Polarizer can convert the natural daylight that light source sends into polarised light, to display panels polarised light is provided for LGP.Present embodiment can provide polarised light to display panels through the polarizer that is arranged between light source and the LGP; Need not on array base palte, to be provided with polarizer; Compared with prior art reduce a polarizer that is arranged on the display panels, thereby improved the transparency of display panels.And, therefore satisfied the requirement that this LCD of needs had higher transparency when LCD was used to carry out transparent the demonstration because this display panels has higher transparency.In the present embodiment; Only need between light source and LGP, polarizer to be set; Need not on array base palte, to be provided with polarizer; The area that is arranged at the polarizer between light source and the LGP is less than the polarizer that is provided with on the array base palte in the prior art, so present embodiment reduced the usable floor area of polarizer on the whole, thereby reduced the cost of LCD.
It is understandable that above embodiment only is the illustrative embodiments that adopts for the principle that the utility model is described, yet the utility model is not limited thereto.For the one of ordinary skilled in the art, under the situation of spirit that does not break away from the utility model and essence, can make various modification and improvement, these modification and improvement also are regarded as the protection domain of the utility model.
Claims (10)
1. a module backlight comprises light source and LGP, and said light source is arranged at the side of said LGP, it is characterized in that, also comprises polarizer, and said polarizer is arranged between said light source and the said LGP.
2. module backlight according to claim 1 is characterized in that, said light source is arranged at least one side of said LGP, and the quantity of said polarizer equals the quantity of said light source.
3. module backlight according to claim 1 is characterized in that, said light source is arranged at least one side of said LGP, and the quantity of said polarizer is less than the quantity of said light source.
4. module backlight according to claim 1 is characterized in that said polarizer comprises polarizer.
5. module backlight according to claim 4 is characterized in that, said polarizer is a reflection type polarizer.
6. module backlight according to claim 1 is characterized in that said light source comprises light emitting diode or cathode fluorescent tube.
7. according to the arbitrary described module backlight of claim 1 to 6, it is characterized in that said polarizer is arranged on the side of said LGP.
8. module backlight according to claim 7 is characterized in that, also comprises reflecting plate, and said reflecting plate is around in the outside of said light source.
9. LCD; It is characterized in that; Comprise: display panels and like each described module backlight of claim 1 to 8, said display panels comprise color membrane substrates and the array base palte that box is provided with, and are filled with liquid crystal between said color membrane substrates and the said array base palte; Said module backlight is arranged at the outside of said array base palte, and said color membrane substrates is provided with polarizer.
10. LCD according to claim 9 is characterized in that, said LGP comprises nanometer LGP, injection moulding LGP or printing net-point LGP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120248361U CN202132807U (en) | 2011-07-14 | 2011-07-14 | Back light module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120248361U CN202132807U (en) | 2011-07-14 | 2011-07-14 | Back light module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132807U true CN202132807U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120248361U Expired - Lifetime CN202132807U (en) | 2011-07-14 | 2011-07-14 | Back light module and liquid crystal display |
Country Status (1)
| Country | Link |
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| CN (1) | CN202132807U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353682A (en) * | 2013-07-12 | 2013-10-16 | 京东方科技集团股份有限公司 | Display panel and transparent display device |
| CN103698939A (en) * | 2013-12-20 | 2014-04-02 | 京东方科技集团股份有限公司 | Backlight module and transparent display device |
| CN105374918A (en) * | 2014-08-26 | 2016-03-02 | 清华大学 | Light emitting device and display device using the same |
| CN105974514A (en) * | 2016-07-22 | 2016-09-28 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
| CN105974668A (en) * | 2016-07-22 | 2016-09-28 | 京东方科技集团股份有限公司 | Transparent display device and making method thereof |
| CN106292054A (en) * | 2015-05-19 | 2017-01-04 | 青岛海信电器股份有限公司 | A kind of liquid crystal display module and LCD TV |
| CN111983835A (en) * | 2020-08-17 | 2020-11-24 | 武汉华星光电技术有限公司 | Display device |
| WO2021218407A1 (en) * | 2020-04-29 | 2021-11-04 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
-
2011
- 2011-07-14 CN CN201120248361U patent/CN202132807U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003460A1 (en) * | 2013-07-12 | 2015-01-15 | 京东方科技集团股份有限公司 | Display panel and transparent display device |
| CN103353682B (en) * | 2013-07-12 | 2016-09-28 | 京东方科技集团股份有限公司 | Display floater and transparent display |
| CN103353682A (en) * | 2013-07-12 | 2013-10-16 | 京东方科技集团股份有限公司 | Display panel and transparent display device |
| CN103698939A (en) * | 2013-12-20 | 2014-04-02 | 京东方科技集团股份有限公司 | Backlight module and transparent display device |
| CN105374918A (en) * | 2014-08-26 | 2016-03-02 | 清华大学 | Light emitting device and display device using the same |
| CN105374918B (en) * | 2014-08-26 | 2018-05-01 | 清华大学 | Light emitting device and display device using the same |
| CN106292054A (en) * | 2015-05-19 | 2017-01-04 | 青岛海信电器股份有限公司 | A kind of liquid crystal display module and LCD TV |
| CN105974668A (en) * | 2016-07-22 | 2016-09-28 | 京东方科技集团股份有限公司 | Transparent display device and making method thereof |
| CN105974514A (en) * | 2016-07-22 | 2016-09-28 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
| CN105974514B (en) * | 2016-07-22 | 2018-12-11 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
| CN105974668B (en) * | 2016-07-22 | 2019-01-29 | 京东方科技集团股份有限公司 | Transparent display and its manufacturing method |
| WO2021218407A1 (en) * | 2020-04-29 | 2021-11-04 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
| US12189239B2 (en) | 2020-04-29 | 2025-01-07 | Hefei Boe Display Technology Co., Ltd. | Backlight module and liquid crystal display apparatus |
| CN111983835A (en) * | 2020-08-17 | 2020-11-24 | 武汉华星光电技术有限公司 | Display device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |