CN104749687A - Light guide plate and backlight module - Google Patents
Light guide plate and backlight module Download PDFInfo
- Publication number
- CN104749687A CN104749687A CN201510174667.8A CN201510174667A CN104749687A CN 104749687 A CN104749687 A CN 104749687A CN 201510174667 A CN201510174667 A CN 201510174667A CN 104749687 A CN104749687 A CN 104749687A
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- China
- Prior art keywords
- microstructure
- subelement
- guide plate
- light guide
- symmetry
- 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.)
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Links
- 230000001154 acute effect Effects 0.000 claims abstract description 25
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000011514 reflex Effects 0.000 description 2
- 241000254158 Lampyridae Species 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- G02B6/0033—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a light guide plate and a backlight module. The light guide plate has a first surface, a second surface and a side face. The first surface faces the second surface. The side face intersects with the first surface and the second surface. The side face intersects with the first surface, forming a first intersection line. The part, close to the side face, of the first surface is provided with a plurality of first micro-structure units. Each first micro-structure unit comprises a plurality of first micro-structure subunits and a plurality of second-microstructure subunits. The first micro-structure subunits are parallel to one another. The second micro-structure subunits are parallel to one another. The first micro-structure subunits and the second micro-structure subunits are symmetric about a first symmetric axis; the first symmetric axis is perpendicular to the first intersection line; the first micro-structure subunits and the first intersection line form a first included angle; the second micro-structure units and the first intersection line form a second acute angle.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of light guide plate and backlight module.
Background technology
Along with the development of technology, liquid crystal indicator is applied widely as the one and obtaining of electronic installation.Backboard module is the important device of of liquid crystal indicator, and backlight module is used for providing light source for the panel in liquid crystal indicator.Backlight module comprises light guide plate and multiple light source, described light source is generally light emitting diode (light emitting diode, LED), described light emitting diode is arranged on the side of described light guide plate (now, this side of described light guide plate is also referred to as incidence surface), described light source is used for luminous, and described light guide plate is used for the light that described light source sends to be converted to area source, and is supplied to the display panel of described liquid crystal indicator.Display panel due to liquid crystal indicator becomes increasing, the distance of the viewing area of light source and described display panel is more and more less, distance between the incidence surface of light guide plate described in described light source distance is more and more less, and firefly (hotspot) phenomenon of the incidence surface side of described light guide plate is also more and more obvious.That is, there is bright uneven phenomenon in the position of the contiguous described incidence surface of described light guide plate.The position of the contiguous described incidence surface of described light guide plate occurs bright uneven, thus causes the display effect of described liquid crystal indicator not good.
Summary of the invention
The invention provides a kind of light guide plate, described light guide plate comprises first surface, second surface and side, described first surface and described second surface are oppositely arranged, described side is crossing with described first surface and described second surface respectively, described side is crossing with described first surface forms first-phase intersection, the position of the contiguous described side of described first surface arranges multiple first microstructure unit, each first microstructure unit comprises many first microstructure subelements and many second microstructure subelements, described first microstructure subelement is parallel to each other, described second microstructure subelement is parallel to each other, described first microstructure subelement and described second microstructure subelement are about the first axis of symmetry symmetry, described first axis of symmetry is perpendicular to described first-phase intersection, and form the first acute angle between described first microstructure subelement and described first-phase intersection, the second acute angle is formed between described second microstructure subelement and described first-phase intersection.
Wherein, the first microstructure subelement nearest apart from described first axis of symmetry is crossing with the second microstructure subelement nearest apart from described first axis of symmetry, and joining is positioned on described first-phase intersection.
Wherein, the first microstructure subelement in described first microstructure unit is crossing with the second microstructure subelement in the first adjacent microstructure unit.
Wherein, the length of each first microstructure subelement is equal, and the length of each second microstructure subelement is equal.
Wherein, described side is crossing with described second surface forms second-phase intersection, the position of the contiguous described side of described second surface arranges multiple second microstructure unit, each second microstructure unit comprises many bars of the 3rd microstructure subelements and many bars of the 4th microstructure subelements, described 3rd microstructure subelement is parallel to each other, described 4th microstructure subelement is parallel to each other, described 3rd microstructure subelement and described 4th microstructure subelement are about the second axis of symmetry symmetry, described second axis of symmetry is perpendicular to described second-phase intersection, and form the 3rd acute angle between described 3rd microstructure subelement and described second-phase intersection, the 4th acute angle is formed between described 4th microstructure subelement and described second-phase intersection.
Wherein, the three microstructure subelement nearest apart from described second axis of symmetry is crossing with the four microstructure subelement nearest apart from described second axis of symmetry, and intersection point is positioned on described second-phase intersection.
Wherein, the 3rd microstructure subelement in described second microstructure unit is crossing with the 4th microstructure subelement in the second adjacent microstructure unit.
Wherein, the length respectively stating the 3rd microstructure subelement is equal, and the length of each 4th microstructure subelement is equal.
Present invention also offers a kind of backlight module, described backlight module comprises light guide plate and multiple light source, and the side of the contiguous described light guide plate of described light source is arranged, and described light guide plate is the light guide plate described in embodiment any in each embodiment aforementioned.
Wherein, corresponding first microstructure unit of light source is arranged, and the center line of described light source is parallel with described first axis of symmetry.
Light guide plate provided by the invention and comprise the backlight module of described light guide plate, described light guide plate comprises first surface, second surface and side, described first surface and described second surface are oppositely arranged, and described side is crossing with described first surface and described second surface respectively.Described side is crossing with described first surface forms first-phase intersection.The position of the contiguous described side of described first surface arranges multiple first microstructure unit, each first microstructure unit comprises many first microstructure subelements and many second microstructure subelements, described first microstructure subelement is parallel to each other, described second microstructure subelement is parallel to each other, and described first microstructure subelement and described second microstructure subelement are about the first axis of symmetry symmetry.Described first axis of symmetry perpendicular to described first-phase intersection, and forms the first acute angle between described first microstructure subelement and described first-phase intersection, forms the second acute angle between described second microstructure subelement and described first-phase intersection.Crossing with prior art, light guide plate of the present invention is by the position of contiguous described side on the first surface arranges multiple first microstructure, described first microstructure to the light generation scattering of launching from described light source, thus makes the light of the exiting surface outgoing of described light guide plate more even.And then make to use the liquid crystal indicator of described light guide plate to have preferably display effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation comprising the backlight module of light guide plate that Fig. 1 provides for the present invention one better embodiment.
Fig. 2 is the partial enlargement structural representation comprising the backlight module of light guide plate in Fig. 1 shown in I.
Fig. 3 is the plan structure schematic diagram comprising the backlight module of light guide plate shown in Fig. 1.
Fig. 4 for shown in Fig. 1 comprise the backlight module of light guide plate look up structural representation.
Fig. 5 is the structure for amplifying schematic diagram at the III place shown in Fig. 3.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See also Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the structural representation comprising the backlight module of light guide plate that Fig. 1 provides for the present invention one better embodiment; Fig. 2 is the partial enlargement structural representation comprising the backlight module of light guide plate in Fig. 1 shown in I; Fig. 3 is the plan structure schematic diagram comprising the backlight module of light guide plate shown in Fig. 1; Fig. 4 for shown in Fig. 1 comprise the backlight module of light guide plate look up structural representation; Fig. 5 is the structure for amplifying schematic diagram at the III place shown in Fig. 3.Described backlight module 10 comprises light guide plate 100 and multiple light source 200.The contiguous described light guide plate 100 of described light source 200 is arranged, and described light source 200 is for luminescence.Described light guide plate 100 is for being converted into area source by the light sent from described light source 200.In the present embodiment, the number of described light source 200 is nine, and described light source 200 is arranged on the side of described light guide plate 100, described light source 200 is light emitting diode, understandably, in other embodiments, described light source 200 is not limited in as light emitting diode.
Described light guide plate 100 comprises first surface 110, second surface 120 and a side 130.Described first surface 110 is oppositely arranged with described second surface 120, and described side 130 is crossing with described first surface 110 and described second surface 120 respectively.Described side 130 is crossing with described first surface 110 forms first-phase intersection 151.The position of the contiguous described side 130 of described first surface 110 arranges multiple first microstructure unit 111, and each first microstructure unit 111 comprises many first microstructure subelements 1111 and many second microstructure subelements 1112.Described first microstructure subelement 1111 is parallel to each other, described second microstructure subelement 1112 is parallel to each other, described first microstructure subelement 1111 is symmetrical about the first axis of symmetry 152 with described second microstructure subelement 1112, and described first axis of symmetry 152 is perpendicular to described first-phase intersection 151.Form the first acute angle between described first microstructure subelement 1111 and described first-phase intersection 151, between described second microstructure subelement 1112 and described first-phase intersection 151, form the second acute angle.In one embodiment, described first acute angle equals described second acute angle.Understandably, the angle of described first acute angle and described second acute angle can adjust according to actual needs, to make the light of the exiting surface outgoing from described light guide plate 100 more even.
In the present embodiment, described first surface 110 is the exiting surface of described light guide plate 100, when described first surface 110 is the exiting surface of described light guide plate 100, the contiguous display panel of described first surface 110 is arranged, the light major part sent from described light source 200 via the outgoing of described first surface 110 to be supplied to described display panel.Correspondingly, described second surface 120 is the reflecting surface of described light guide plate 100, and when described second surface 120 is the reflecting surface of described light guide plate 100, described second surface 120 is contiguous, and such as, a reflector plate or the backboard with reflection function are arranged.Now, when the light that described light source 200 sends goes out to be shot out via described second surface 120, the light from the outgoing of described second surface 120 reflexes in described light guide plate 100 from described second surface 120 by described reflector plate or the backboard with reflection function again.Described side 130 is the incidence surface of described light guide plate 100.
Understandably, in other embodiments, described second surface 120 can be the exiting surface of described light guide plate 100, when described second surface 120 is the exiting surface of described light guide plate 100, the contiguous display panel of described second surface 120 is arranged, the light major part sent from described light source 200 via the outgoing of described second surface 120 to be supplied to described display panel.Correspondingly, described first surface 110 is the reflecting surface of described light guide plate 100, and when described first surface 110 is the reflecting surface of described light guide plate 100, described first surface 110 is contiguous, and such as, a reflector plate or the backlight with reflection function are arranged.Now, when the light that described light source 200 sends initially is gone out via described first surface 110, the light from the outgoing of described first surface 110 reflexes in described light guide plate 100 from described first surface 110 by described reflector plate or the backboard with reflection function again.Described side 130 is the incidence surface of described light guide plate 100.
The first microstructure subelement 1111 nearest apart from described first axis of symmetry 152 is crossing with the second microstructure subelement 1112 nearest apart from described first axis of symmetry 152, and joining is positioned on described first-phase intersection 151.Preferably, the corresponding light source 200 of each first microstructure unit 111 is arranged, and described joining is equal apart from the distance of the end points at the two ends of the exiting surface of described light source 200.Thus, the light launched from the exiting surface of described light source 200 can be spread by described first microstructure subelement 1111 and described second microstructure subelement 1112 more equably equably.
In described light guide plate 100, the first microstructure subelement 1111 in described first microstructure unit 111 is crossing with the second microstructure subelement 1112 in the first adjacent microstructure unit 111.Refer to Fig. 3, the first microstructure subelement 1111 in described first microstructure unit 111 is crossing with the second microstructure subelement 1112 in the first adjacent microstructure unit 111, therefore, first microstructure subelement 1111 and the second microstructure subelement 1112 in the first adjacent microstructure unit 111 of described first microstructure unit 111 form the microstructure of more crypto set in intersection, make the light of described first surface 110 outgoing from described light guide plate 100 more even.
Preferably, the length of each first microstructure subelement 1111 is equal, and the length of each second microstructure subelement 1112 is equal.
Described side 130 is crossing with described second surface 120 forms second-phase intersection 153, the position of the contiguous described side 130 of described second surface 120 arranges multiple second microstructure unit 121, and each second microstructure unit 121 comprises many bars of the 3rd microstructure subelements 1211 and many bars of the 4th microstructure subelements 1212.Described 3rd microstructure subelement 1211 is parallel to each other, described 4th microstructure subelement 1212 is parallel to each other, described 3rd microstructure subelement 1211 is symmetrical about the second axis of symmetry 154 with described 4th microstructure subelement 1212, and described second axis of symmetry 154 is perpendicular to described second-phase intersection 153.Form the 3rd acute angle between described 3rd microstructure subelement 1211 and described second-phase intersection 153, between described 4th microstructure subelement 1212 and described second-phase intersection 153, form the 4th acute angle.In one embodiment, described 3rd acute angle equals described 4th acute angle.Understandably, the angle of described 3rd acute angle and described 4th acute angle can adjust according to actual needs, to make the light of the exiting surface outgoing from described light guide plate 100 more even.
The three microstructure subelement 1211 nearest apart from described second axis of symmetry 154 is crossing with the four microstructure subelement 1212 nearest apart from described second axis of symmetry 154, writes joining and is positioned on described second-phase intersection 153.Preferably, the corresponding light source 200 of described second microstructure unit 121 is arranged, and described joining is equal apart from the end-point distances at the two ends of the exiting surface of described light source 200.Thus, the light launched from the exiting surface of described light source 200 can be spread by described 3rd microstructure subelement 1211 and described 4th microstructure subelement 1212 more equably equably.
Preferably, the 3rd microstructure subelement 1211 in described second microstructure subelement 121 is crossing with the 4th microstructure subelement 1212 in the second adjacent microstructure subelement 121.
In the present embodiment, the length of each 3rd microstructure subelement 1211 is equal, and the length of each 4th microstructure subelement 1212 is equal.
Preferably, in the present embodiment, described first microstructure subelement 1111, described second microstructure subelement 1112, described 3rd microstructure subelement 1211 and described 4th microstructure subelement 1212 are triangular prism structure.That is, the cross section parallel with described side 130 of described first microstructure subelement 1111, described second microstructure subelement 1112, described 3rd microstructure subelement 1211 and described 4th microstructure subelement 1212 is triangle.
Present invention also offers a kind of backlight module 10, described backlight module 10 comprises light guide plate 100 and multiple light source 200.The side of the contiguous described light guide plate 100 of described light source 200 is arranged, and described light guide plate 100 refers to the aforementioned description to described light guide plate 100, does not repeat them here.Preferably, described light source 200 to be centrally located at described first axis of symmetry 152 parallel.
Light guide plate 100 provided by the invention and comprise the backlight module 10 of described light guide plate 100, described light guide plate 100 comprises first surface 110, second surface 120 and side 130, described first surface 110 is oppositely arranged with described second surface 120, and described side 130 is crossing with described first surface 110 and described second surface 120 respectively.Described side 130 is crossing with described first surface 110 forms first-phase intersection 151.The position of the contiguous described side 130 of described first surface 110 arranges multiple first microstructure unit 111, each first microstructure unit 111 comprises many first microstructure subelements 1111 and many second microstructure subelements 1112, described first microstructure subelement 1111 is parallel to each other, described second microstructure subelement 1112 is parallel to each other, and described first microstructure subelement 1111 is symmetrical about the first axis of symmetry 152 with described second microstructure subelement 1112.Described first axis of symmetry 152 is perpendicular to described first-phase intersection 151, and form the first acute angle between described first microstructure subelement 1111 and described first-phase intersection 151, form the second acute angle between described second microstructure subelement 152 and described first-phase intersection 151.Crossing with prior art, light guide plate 100 of the present invention is by the position of described side 130 contiguous on described first surface 110 arranges multiple first microstructure 111, described first microstructure 111 to the light generation scattering of launching from described light source 200, thus makes the light of the exiting surface outgoing of described light guide plate 100 more even.And then make to use the liquid crystal indicator of described light guide plate 100 to have preferably display effect.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.
Claims (10)
1. a light guide plate, it is characterized in that, described light guide plate comprises first surface, second surface and side, described first surface and described second surface are oppositely arranged, described side is crossing with described first surface and described second surface respectively, described side is crossing with described first surface forms first-phase intersection, the position of the contiguous described side of described first surface arranges multiple first microstructure unit, each first microstructure unit comprises many first microstructure subelements and many second microstructure subelements, described first microstructure subelement is parallel to each other, described second microstructure subelement is parallel to each other, described first microstructure subelement and described second microstructure subelement are about the first axis of symmetry symmetry, described first axis of symmetry is perpendicular to described first-phase intersection, and form the first acute angle between described first microstructure subelement and described first-phase intersection, the second acute angle is formed between described second microstructure subelement and described first-phase intersection.
2. light guide plate as claimed in claim 1, it is characterized in that, the first microstructure subelement nearest apart from described first axis of symmetry is crossing with the second microstructure subelement nearest apart from described first axis of symmetry, and joining is positioned on described first-phase intersection.
3. light guide plate as claimed in claim 1, it is characterized in that, the first microstructure subelement in described first microstructure unit is crossing with the second microstructure subelement in the first adjacent microstructure unit.
4. light guide plate as claimed in claim 1, it is characterized in that, the length of each first microstructure subelement is equal, and the length of each second microstructure subelement is equal.
5. light guide plate as claimed in claim 1, it is characterized in that, described side is crossing with described second surface forms second-phase intersection, the position of the contiguous described side of described second surface arranges multiple second microstructure unit, each second microstructure unit comprises many bars of the 3rd microstructure subelements and many bars of the 4th microstructure subelements, described 3rd microstructure subelement is parallel to each other, described 4th microstructure subelement is parallel to each other, described 3rd microstructure subelement and described 4th microstructure subelement are about the second axis of symmetry symmetry, described second axis of symmetry is perpendicular to described second-phase intersection, and form the 3rd acute angle between described 3rd microstructure subelement and described second-phase intersection, the 4th acute angle is formed between described 4th microstructure subelement and described second-phase intersection.
6. light guide plate as claimed in claim 5, it is characterized in that, the three microstructure subelement nearest apart from described second axis of symmetry is crossing with the four microstructure subelement nearest apart from described second axis of symmetry, and intersection point is positioned on described second-phase intersection.
7. light guide plate as claimed in claim 5, it is characterized in that, the 3rd microstructure subelement in described second microstructure unit is crossing with the 4th microstructure subelement in the second adjacent microstructure unit.
8. light guide plate as claimed in claim 5, it is characterized in that, the length respectively stating the 3rd microstructure subelement is equal, and the length of each 4th microstructure subelement is equal.
9. a backlight module, is characterized in that, described backlight module comprises light guide plate and multiple light source, and the side of the contiguous described light guide plate of described light source is arranged, and described light guide plate is the light guide plate as described in claim 1 to 8 any one.
10. backlight module as claimed in claim 9, is characterized in that, corresponding first microstructure unit of light source is arranged, and the center line of described light source is parallel with described first axis of symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510174667.8A CN104749687B (en) | 2015-04-14 | 2015-04-14 | Light guide plate and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510174667.8A CN104749687B (en) | 2015-04-14 | 2015-04-14 | Light guide plate and backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749687A true CN104749687A (en) | 2015-07-01 |
| CN104749687B CN104749687B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510174667.8A Active CN104749687B (en) | 2015-04-14 | 2015-04-14 | Light guide plate and backlight module |
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| Country | Link |
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| CN (1) | CN104749687B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093388A (en) * | 2015-08-07 | 2015-11-25 | 武汉华星光电技术有限公司 | Light guide plate and backlight module provided with same |
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| CN103364991A (en) * | 2013-06-20 | 2013-10-23 | 京东方科技集团股份有限公司 | Backlight module and display device |
| JP2014130748A (en) * | 2012-12-28 | 2014-07-10 | Omron Corp | Light guide plate and surface light source device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1580901A (en) * | 2003-08-14 | 2005-02-16 | 鸿富锦精密工业（深圳）有限公司 | Back light assembly and its light guide board |
| CN101755167A (en) * | 2007-06-12 | 2010-06-23 | 欧姆龙株式会社 | Surface light source apparatus |
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| JP2014130748A (en) * | 2012-12-28 | 2014-07-10 | Omron Corp | Light guide plate and surface light source device |
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| CN105093388A (en) * | 2015-08-07 | 2015-11-25 | 武汉华星光电技术有限公司 | Light guide plate and backlight module provided with same |
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| Publication number | Publication date |
|---|---|
| CN104749687B (en) | 2017-12-12 |
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