CN104793283A - Thinning type light guide plate, backlight module and liquid crystal display - Google Patents
Thinning type light guide plate, backlight module and liquid crystal display Download PDFInfo
- Publication number
- CN104793283A CN104793283A CN201510220385.7A CN201510220385A CN104793283A CN 104793283 A CN104793283 A CN 104793283A CN 201510220385 A CN201510220385 A CN 201510220385A CN 104793283 A CN104793283 A CN 104793283A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- substrate
- prism structure
- backlight module
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a thinning type light guide plate which comprises a substrate (221) and a wedged body (222) and a prism structure (223) which are arranged on the substrate (221), the thicker end face of the wedged body (222) aligns to the side face of the substrate (221), and the thinner end face of the wedged body (222) is in smooth connection to one end of the prism structure (223). The invention further discloses a backlight module provided with the light guide plate and a liquid crystal display provided with the backlight module. The wedged body and the prism structure which are independent from the substrate are formed on the substrate, and the light guide plate is thinned to the greatest extend according to actual needs by the aid of the existing technological process, so that the backlight module is integrally thinned.
Description
Technical field
The invention belongs to technical field of liquid crystal display, specifically, relate to a kind of slimming light guide plate, backlight module and liquid crystal display.
Background technology
At present, liquid crystal display has been widely used in various electronic product as the display screen of electronic equipment.Increasing market pursues the slimming of electronic equipment, and such as present notebook computer, mobile phone, panel computer etc. need the electronic equipment of liquid crystal display to do thinner and thinner, and therefore liquid crystal display also needs to do thinner and thinner.In whole liquid crystal display, can the slimming of backlight module realize determining liquid crystal display realize slimming.And in backlight module, the thickness of light guide plate directly determines the integral thickness of backlight module, therefore need the light guide plate proposing a kind of slimming badly, realize slimming to make backlight module entirety.
Summary of the invention
To achieve these goals, the invention provides a kind of slimming light guide plate, it comprises substrate and the sphenoid that is arranged on described substrate and prism structure, the end face that described sphenoid is thicker aligns with the side of described substrate, and one end of the end face that described sphenoid is thinner and described prism structure links up smoothly.
Further, described sphenoid and described prism structure adopt vulcanization crosslinking molding mode to be made into integration.
Further, described substrate is independent of the described sphenoid be made into integration and described prism structure.
Further, described sphenoid and described prism structure adopt the refractive index material identical with the refractive index of described substrate to make.
Further, described substrate adopts polymethylmethacrylate to make.
Further, described prism structure comprises the stupefied bar of multiple V-type, and one end of the end face that described sphenoid is thinner and the stupefied bar of described V-type links up smoothly.
Further, the stupefied bar of described multiple V-type is parallel to each other and continuous.
Further, the stupefied bar of described V-type is the stupefied bar of symmetrical V-type or the stupefied bar of asymmetric V.
The invention allows for a kind of backlight module, it comprises above-mentioned slimming light guide plate.
The present invention also been proposed a kind of liquid crystal display, and it comprises above-mentioned backlight module.
Beneficial effect of the present invention: the present invention by the sphenoid that formed on substrate independent of substrate and prism structure, the technique utilizing prior art maximum slimming light guide plate according to the actual requirements, thus make backlight module entirety realize slimming.
Accompanying drawing explanation
The following description carried out in conjunction with the drawings, the above-mentioned and other side of embodiments of the invention, feature and advantage will become clearly, in accompanying drawing:
Fig. 1 is the side view of liquid crystal display according to an embodiment of the invention;
Fig. 2 is the partial side view of backlight module according to an embodiment of the invention;
Fig. 3 is the schematic side view of light guide plate according to an embodiment of the invention
Fig. 4 is the right view of Fig. 3.
Embodiment
Below, embodiments of the invention are described in detail with reference to the accompanying drawings.But, the present invention can be implemented in many different forms, and the present invention should not be interpreted as being limited to the specific embodiment of setting forth here.On the contrary, provide these embodiments to be to explain principle of the present invention and practical application thereof, thus enable others skilled in the art understand various embodiment of the present invention and be suitable for the various amendments of certain expected application.In the accompanying drawings, in order to know device, exaggerate the thickness in layer and region, identical label can be used to represent identical element in whole instructions with accompanying drawing.
Fig. 1 is the side view of liquid crystal display according to an embodiment of the invention.
With reference to Fig. 1, liquid crystal display comprises the liquid crystal panel 100 and backlight module 200 that are oppositely arranged according to an embodiment of the invention, and wherein, backlight module 200 provides the display backlight of high colour gamut to liquid crystal panel 100, to make this liquid crystal panel 100 show image.In the present embodiment, because invention main points of the present invention are for backlight module 200, so in order to avoid repeating, the concrete structure of liquid crystal panel 100 is introduced no longer in detail at this, and those skilled in the art can refer to the concrete structure of liquid crystal panel disclosed in prior art.
Below will be described in detail backlight module 200 according to an embodiment of the invention.Fig. 2 is the partial side view of backlight module according to an embodiment of the invention.Fig. 3 is the schematic side view of light guide plate according to an embodiment of the invention.Fig. 4 is the right view of Fig. 3.
In the lump with reference to Fig. 2 to Fig. 4, backlight module 200 comprises the back of the body frame 210, light guide plate 220, some blooming pieces 230, light source 240, glue frame 250, shading double faced adhesive tape 260 and reflector plate 270 according to an embodiment of the invention.
Specifically, in fig. 2, illustrate only the base plate 211 that back of the body frame 210 comprises and the side plate 212 being positioned at base plate 211 side.Should be understood that, back of the body frame 210 generally includes base plate 211 and lays respectively at four side plates 212 of base plate 211 4 side.
Light guide plate 220 is arranged on the base plate 211 of back of the body frame 210.In the present embodiment, as shown in Figure 3 and Figure 4, light guide plate 220 is a kind of slimming light guide plate, and it comprises one roughly in the substrate 221 of rectangular parallelepiped and the sphenoid 222 be arranged on substrate 221 end face and prism structure 223.The side of the end face that sphenoid 222 is thicker and substrate 221 is in the face of neat, and the two is together as the light inlet end face 220a being adjacent to the side plate 212 carrying on the back frame 210.One end of the end face that sphenoid 222 is thinner and prism structure 223 links up smoothly.The other end of prism structure 223 aligns with the another side of substrate 221.
In the present embodiment, preferably, sphenoid 222 and prism structure 223 adopt vulcanization crosslinking molding mode to be made into integration, but the present invention is not restricted to this, and such as sphenoid 222 and prism structure 223 also can independently be made.And substrate 221 is independent of the sphenoid 222 be made into integration and prism structure 223, that is, substrate 221 separates with the sphenoid 222 be made into integration and prism structure 223, like this can as requested at utmost slimming make light guide plate 220, if substrate 221, sphenoid 222 and and prism structure 223 three in one make, so when light guide plate 220 is done slimming to a certain extent, existing technique cannot be made.
Preferably, in the present embodiment, substrate 221 adopts polymethylmethacrylate (PMMA) to make, but the present invention is not restricted to this.In order to the light guide effect making light guide plate 220 reach best, sphenoid 222 and prism structure 223 all adopt the refractive index material identical or consistent with the refractive index of polymethylmethacrylate to make, and such as sphenoid 222 and prism structure 223 can use polymethylmethacrylate (PMMA) to make.
Further, prism structure 223 comprises the stupefied bar 2231 of multiple V-type, and the end face that sphenoid 222 is thinner and the stupefied bar 2231 of each V-type link up smoothly.In the present embodiment, preferably, the stupefied bar of these V-types 2231 is parallel to each other and continuous, but the present invention is not restricted to this.In addition, in the present embodiment, preferably, the stupefied bar of V-type 2231 is symmetrical stupefied bar, but the present invention is not restricted to this, and the stupefied bar of such as V-type 2231 also can be asymmetric stupefied bar.
Light source 240 is arranged between light inlet end face 220a and side plate 212, and light source 240 is adjacent to light inlet end face 220a.Some blooming pieces 230 are successively set on prism structure 223.In the present embodiment, these blooming pieces 230 can comprise brightness enhancement film, diffusion barrier etc., and they can improve the optical quality by the light of prism structure 223 outgoing, in fig. 2, show three blooming pieces 230, but the present invention are not as limit.Glue frame 250 is arranged between light source 240 and side plate 212, and some blooming pieces 230 are fixed on glue frame 250 and side plate 212 by shading double faced adhesive tape 260, thus also light source 230 and light guide plate 220 is fixed in back of the body frame 210.Reflector plate 270 is arranged between the base plate 211 of light guide plate 220 and back of the body frame 210, and the light reflection arrived on it can return in light guide plate 220 by this reflector plate 270, thus improves light utilization.
Although illustrate and describe the present invention with reference to specific embodiment, but it should be appreciated by those skilled in the art that: when not departing from the spirit and scope of the present invention by claim and equivalents thereof, the various changes in form and details can be carried out at this.
Claims (10)
1. a slimming light guide plate, it is characterized in that, the sphenoid (222) comprising substrate (221) and be arranged on described substrate (221) and prism structure (223), the end face that described sphenoid (222) is thicker aligns with the side of described substrate (221), and one end of the end face that described sphenoid (222) is thinner and described prism structure (223) links up smoothly.
2. slimming light guide plate according to claim 1, is characterized in that, described sphenoid (222) and described prism structure (223) adopt vulcanization crosslinking molding mode to be made into integration.
3. slimming light guide plate according to claim 2, is characterized in that, described substrate (221) is independent of the described sphenoid (222) be made into integration and described prism structure (223).
4. the slimming light guide plate according to any one of claims 1 to 3, it is characterized in that, described sphenoid (222) and described prism structure (223) adopt the refractive index material identical with the refractive index of described substrate (221) to make.
5. slimming light guide plate according to claim 4, is characterized in that, described substrate (221) adopts polymethylmethacrylate to make.
6. slimming light guide plate according to claim 1, it is characterized in that, described prism structure (223) links up smoothly for the stupefied bar of multiple V-type (2231), one end of the end face that described sphenoid (222) is thinner and the stupefied bar of described V-type (2231).
7. slimming light guide plate according to claim 6, is characterized in that, the stupefied bar of described multiple V-type (2231) is parallel to each other and continuous.
8. the slimming light guide plate according to claim 6 or 7, is characterized in that, the stupefied bar of described V-type (2231) is the stupefied bar of symmetrical V-type or the stupefied bar of asymmetric V.
9. a backlight module, is characterized in that, comprises the slimming light guide plate described in any one of claim 1 to 8.
10. a liquid crystal display, is characterized in that, comprises backlight module according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220385.7A CN104793283A (en) | 2015-05-04 | 2015-05-04 | Thinning type light guide plate, backlight module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220385.7A CN104793283A (en) | 2015-05-04 | 2015-05-04 | Thinning type light guide plate, backlight module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104793283A true CN104793283A (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510220385.7A Pending CN104793283A (en) | 2015-05-04 | 2015-05-04 | Thinning type light guide plate, backlight module and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104793283A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11947148B2 (en) | 2020-06-23 | 2024-04-02 | Boe Technology Group Co., Ltd. | Transparent display panel and electronic device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101042451A (en) * | 2007-04-25 | 2007-09-26 | 长兴光学材料（苏州）有限公司 | Thin type flexible leaded light component |
| JP2009081014A (en) * | 2007-09-26 | 2009-04-16 | Epson Imaging Devices Corp | Illumination device, electro-optical device, and electronic apparatus |
| CN102268184A (en) * | 2010-03-10 | 2011-12-07 | 信越化学工业株式会社 | Light-diffusing dimethyl organic silicone rubber composition and LED light-diffusing molding body |
| CN102563541A (en) * | 2011-08-17 | 2012-07-11 | 友达光电股份有限公司 | Light guide plate and backlight module |
| CN202561652U (en) * | 2012-04-13 | 2012-11-28 | 京东方科技集团股份有限公司 | Light guide plate, edge-lit backlight module and liquid crystal display device |
| CN104181627A (en) * | 2013-05-21 | 2014-12-03 | 鸿富锦精密工业（深圳）有限公司 | Conductive element and backlight module |
-
2015
- 2015-05-04 CN CN201510220385.7A patent/CN104793283A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101042451A (en) * | 2007-04-25 | 2007-09-26 | 长兴光学材料（苏州）有限公司 | Thin type flexible leaded light component |
| JP2009081014A (en) * | 2007-09-26 | 2009-04-16 | Epson Imaging Devices Corp | Illumination device, electro-optical device, and electronic apparatus |
| CN102268184A (en) * | 2010-03-10 | 2011-12-07 | 信越化学工业株式会社 | Light-diffusing dimethyl organic silicone rubber composition and LED light-diffusing molding body |
| CN102563541A (en) * | 2011-08-17 | 2012-07-11 | 友达光电股份有限公司 | Light guide plate and backlight module |
| CN202561652U (en) * | 2012-04-13 | 2012-11-28 | 京东方科技集团股份有限公司 | Light guide plate, edge-lit backlight module and liquid crystal display device |
| CN104181627A (en) * | 2013-05-21 | 2014-12-03 | 鸿富锦精密工业（深圳）有限公司 | Conductive element and backlight module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11947148B2 (en) | 2020-06-23 | 2024-04-02 | Boe Technology Group Co., Ltd. | Transparent display panel and electronic device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150722 |