CN101216632A - Side light type backlight module group - Google Patents
Side light type backlight module group Download PDFInfo
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- CN101216632A CN101216632A CNA2007101737335A CN200710173733A CN101216632A CN 101216632 A CN101216632 A CN 101216632A CN A2007101737335 A CNA2007101737335 A CN A2007101737335A CN 200710173733 A CN200710173733 A CN 200710173733A CN 101216632 A CN101216632 A CN 101216632A
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- light
- optical fiber
- light type
- backlight module
- guide plate
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Abstract
The invention discloses a side-edge backlight module of an LCD. The side-edge backlight module comprises a light guide plate, a surface light-emitting optical fiber arranged on the side edge of the light guide plate; and light sources respectively arranged on both ends of the surface light-emitting optical fiber. The side-edge backlight module of the invention has the advantages of improved light utilization efficiency, improved color gamut range, thinned product, etc.
Description
Technical field
The present invention relates to a kind of side-light type module backlight of LCD, particularly a kind of side-light type that uses entirely lighting optical fiber that light source is provided module backlight.
Background technology
LCD (LCD) is to utilize the variation that is clipped in electric field intensity on the liquid crystal molecule, and the power that changes the orientation control printing opacity of liquid crystal molecule is come display image.In general, complete LCD backlight module, polaroid, TFT (thin film transistor (TFT)) infrabasal plate and CF (color filter) upper substrate must be arranged and the box formed by two substrates in the layer of liquid crystal molecule of filling constitute.Crystal liquid substrate itself can not be luminous, needs light source.LCD adopts cold cathode fluorescent lamp as light source more at present, and Fig. 1 is the synoptic diagram of existing a kind of side-light type module backlight, and side-light type module backlight comprises light guide plate 1; Cold cathode fluorescent lamp 2 is positioned at the side of light guide plate 1; Fluorescent tube reflex housing 3 holds and protects cold cathode fluorescent lamp 2.But cold cathode fluorescent lamp exists colour gamut narrower, and producing needs to use mercury to be shortcomings such as raw material
Summary of the invention
For addressing the above problem, the invention provides a kind of side-light type module backlight, provide light source by using entirely lighting optical fiber, solve and use cold cathode fluorescent lamp narrower as the colour gamut that light source exists, producing needs to use mercury to be problems such as raw material.
For achieving the above object, side-light type of the present invention module backlight comprises: light guide plate; Entirely lighting optical fiber places the side of described light guide plate; Light emitting source places the two ends of described entirely lighting optical fiber respectively.
Described light emitting source is LED.
The two ends of described entirely lighting optical fiber and described light emitting source are coupled respectively.
Side-light type of the present invention module backlight adopts entirely lighting optical fiber and light emitting source to replace cold cathode fluorescent lamp as light source, can improve gamut range.Again because optical fiber has pliability preferably, entirely lighting optical fiber can be arranged on light guide plate around, improve the light source service efficiency.Fibre diameter is less, and the light source of appropriate mix can the product slimming.
Description of drawings
Fig. 1 is the synoptic diagram of existing a kind of side-light type module backlight;
Fig. 2 is the structural representation of entirely lighting optical fiber;
Fig. 3 is the synoptic diagram of an embodiment of side-light type of the present invention module backlight;
Fig. 4 be among Fig. 3 side-light type module backlight overlook enlarged diagram;
Fig. 5 is the synoptic diagram of another embodiment of side-light type of the present invention module backlight.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
Fig. 2 is the structural representation of entirely lighting optical fiber, and entirely lighting optical fiber has another name called lateral emitting optical fiber or lighting fiber.Adopt present optical fiber known techniques to produce, entirely lighting optical fiber is made up of covering 201, sandwich layer 202, scatterer 203, covering 201 is coated in the outside surface of sandwich layer 202, scatterer 203 is with certain density and the depth profile inside surface at sandwich layer 22, wherein the refractive index of covering 201 is greater than the refractive index of sandwich layer 202, scatterer 203 is to constitute by being different from sandwich layer 202 refractive index materials, and covering 201 and sandwich layer 202 have constituted circular waveguiding structure.Light conducting is propagated in sandwich layer 02, when it runs into scatterer 203, will some light owing to scattering leaks out.The material of each layer of optical fiber can be selected for use flexibly, and sandwich layer 202 materials can adopt thermoset resin usually, and its advantage is that thermoset resin has excellent temperature tolerance, is difficult for temperature distortion.Light source is optional with high metal halid lamp or the xenon lamp of power, thereby also has stronger side-scattered light to send even guarantee fiber lengths than long.Covering 201 materials can be selected FEP (fluorinated ethylene propylene) for use, and scatterer 203 can be selected PMMA (polymethyl methacrylate) or other polymeric materials for use, also can select fluorescent material for use.
Fig. 3 is the synoptic diagram of an embodiment of side-light type of the present invention module backlight, Fig. 4 be among Fig. 3 side-light type module backlight overlook enlarged diagram, as shown in the figure, side-light type of the present invention module backlight comprises light guide plate 10; Entirely lighting optical fiber 20 places the side of light guide plate 10, and the two ends of described entirely lighting optical fiber 20 are provided with light emitting source 21.
The light emitting source 21 at entirely lighting optical fiber 20 two ends can adopt LED or other suitable light sources.Optical fiber 20 diameters are according to using needs generally in the number millimeter, and light emitting source 21 is selected LED for use in the present embodiment, and entirely lighting optical fiber 20 two ends are coupled with LED respectively, can better improve the light source utilization factor.
Fig. 5 is the synoptic diagram of another embodiment of side-light type of the present invention module backlight, and as shown in the figure, side-light type of the present invention module backlight comprises light guide plate 100; Entirely lighting optical fiber 200 places the side of light guide plate 100, and the two ends of described entirely lighting optical fiber 200 are provided with light emitting source 210.The light emitting source 21 at entirely lighting optical fiber 20 two ends can adopt LED or other suitable light sources.Compare with embodiment shown in Figure 3, entirely lighting optical fiber 200 place light guide plate 100 side around because optical fiber has pliability preferably, can be around light guide plate 100 week even distribution light source, improve light service efficiency and uniformity coefficient.
The foregoing description only is used to illustrate the present invention, and those skilled in the art can make various modifications or replacement to embodiments of the invention, and does not depart from spirit of the present invention, and these modifications or replacement should be considered as dropping in protection scope of the present invention.
Claims (3)
1. a side-light type module backlight is characterized in that, comprising:
Light guide plate;
Entirely lighting optical fiber places the side of described light guide plate;
Light emitting source places the two ends of described entirely lighting optical fiber respectively.
2. side-light type as claimed in claim 1 module backlight is characterized in that described light emitting source is LED.
3. side-light type as claimed in claim 1 module backlight is characterized in that the two ends of described entirely lighting optical fiber and described light emitting source are coupled respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101737335A CN101216632A (en) | 2007-12-29 | 2007-12-29 | Side light type backlight module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101737335A CN101216632A (en) | 2007-12-29 | 2007-12-29 | Side light type backlight module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101216632A true CN101216632A (en) | 2008-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101737335A Pending CN101216632A (en) | 2007-12-29 | 2007-12-29 | Side light type backlight module group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101216632A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839407A (en) * | 2009-03-18 | 2010-09-22 | 索尼公司 | Fiber lamp, backlight and LCD |
| WO2010108436A1 (en) * | 2009-03-27 | 2010-09-30 | 联想(北京)有限公司 | Optical touch system and method for optical touch location |
| WO2013135143A1 (en) * | 2012-03-16 | 2013-09-19 | 京东方科技集团股份有限公司 | Backlight module and display apparatus |
| WO2017152613A1 (en) * | 2016-03-07 | 2017-09-14 | 合一智能科技（深圳）有限公司 | Backlight device and control method therefor |
| WO2018120508A1 (en) * | 2016-12-27 | 2018-07-05 | 惠科股份有限公司 | Backlight module and display device |
-
2007
- 2007-12-29 CN CNA2007101737335A patent/CN101216632A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839407A (en) * | 2009-03-18 | 2010-09-22 | 索尼公司 | Fiber lamp, backlight and LCD |
| WO2010108436A1 (en) * | 2009-03-27 | 2010-09-30 | 联想(北京)有限公司 | Optical touch system and method for optical touch location |
| US20120075191A1 (en) * | 2009-03-27 | 2012-03-29 | Lenovo (Beijing) Co., Ltd. | Optical Touch System and Method for Optical Touch Location |
| US9626043B2 (en) | 2009-03-27 | 2017-04-18 | Lenovo (Beijing) Co., Ltd. | Optical touch system and method for optical touch location |
| WO2013135143A1 (en) * | 2012-03-16 | 2013-09-19 | 京东方科技集团股份有限公司 | Backlight module and display apparatus |
| US9170361B2 (en) | 2012-03-16 | 2015-10-27 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| WO2017152613A1 (en) * | 2016-03-07 | 2017-09-14 | 合一智能科技（深圳）有限公司 | Backlight device and control method therefor |
| WO2018120508A1 (en) * | 2016-12-27 | 2018-07-05 | 惠科股份有限公司 | Backlight module and display device |
| US10502883B2 (en) | 2016-12-27 | 2019-12-10 | HKC Corporation Limited | Backlight module and display apparatus thereof |
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| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |