CN105137527A - Light guide plate and back light module having the same - Google Patents
Light guide plate and back light module having the same Download PDFInfo
- Publication number
- CN105137527A CN105137527A CN201510522643.7A CN201510522643A CN105137527A CN 105137527 A CN105137527 A CN 105137527A CN 201510522643 A CN201510522643 A CN 201510522643A CN 105137527 A CN105137527 A CN 105137527A
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- CN
- China
- Prior art keywords
- sphenoid
- face
- light incident
- guide plate
- sides
- 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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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
-
- 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
- G02B6/0031—Reflecting 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
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 provides a light guide plate, comprising a light incidence side (11), a top side (12) and a bottom (13), wherein the top side (12) and the bottom (13) are connected to the light incidence side (11) and are arranged oppositely; first wedge-shaped bodies (14) are formed at the connection of the top side (12) and the incidence light side (11) and are arranged at interval on the top side (12); the thick end surfaces (141) of the first wedge-shaped bodies (14) are flushed with the light incidence side (11); second wedge-shaped bodies (15) are formed at the connection of the bottom (13) and the light incidence side (11) and are arrange at interval on the bottom (13); the thick end surfaces of the second wedge-shaped bodies (15) are flushed with the light incidence side (11); and the first wedge-shaped bodies are corresponding to the second wedge-shaped bodies (15) on one-to-one basis. The invention also provides a back light module having the light guide plate. The wedge-shaped bodies are formed on the upper part and the lower part of the light incidence side of the light guide plate in a manner of the bellmouth, which can effectively reduce the thickness of the light guide plate and can satisfy the requirement for thinning of the liquid crystal display device.
Description
Technical field
The invention belongs to technical field of liquid crystal display, specifically, relate to a kind of light guide plate and there is the backlight module of this light guide plate.
Background technology
Along with the evolution of photoelectricity and semiconductor technology, also the flourish of flat-panel monitor (FlatPanelDisplay) has been driven, and in many flat-panel monitors, liquid crystal indicator (LiquidCrystalDisplay, be called for short LCD) because having many advantageous characteristic such as high spatial utilization ratio, low consumpting power, radiationless and low EMI, as electronic equipment display screen and be widely used in various electronic product.
At present, 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 indicator more and more thinner, and therefore liquid crystal indicator also needs more and more thinner.In whole liquid crystal indicator, can the slimming of backlight module realize determining liquid crystal indicator 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
In order to solve above-mentioned problems of the prior art, the object of the present invention is to provide a kind of light guide plate, comprising light incident sides and being connected and the end face be oppositely arranged and bottom surface with described light incident sides; Spaced first sphenoid be positioned on described end face is formed in the junction of described end face and described light incident sides, the thick end face of described first sphenoid is concordant with described light incident sides, and the inclined-plane be connected with thick end face of described first sphenoid is connected with described end face is smooth; Spaced second sphenoid be positioned on described bottom surface is formed in the junction of described bottom surface and described light incident sides, the thick end face of described second sphenoid is concordant with described light incident sides, and the inclined-plane be connected with thick end face of described second sphenoid is connected with described bottom surface is smooth; Wherein, described first sphenoid and described second sphenoid one_to_one corresponding.
Further, described first sphenoid and described second sphenoid are symmetrical arranged.
Further, the cross sectional shape of described first sphenoid is at right angles triangular shaped; Wherein, one of two right-angle sides of right-angle triangle coincide with described end face, and another of two right-angle sides of right-angle triangle is perpendicular to described end face and be positioned on the fillet of described end face and described light incident sides.
Further, the cross sectional shape of described second sphenoid is at right angles triangular shaped; Wherein, one of two right-angle sides of right-angle triangle coincide with described bottom surface, and another of two right-angle sides of right-angle triangle is perpendicular to described bottom surface and be positioned on the fillet of described bottom surface and described light incident sides.
Another object of the present invention is also to provide a kind of backlight module, at least comprises above-mentioned light guide plate and reflecting plate, and described reflecting plate is fastened on the bottom surface of described light guide plate.
Further, a side of described reflecting plate forms spaced platysome, and described platysome is arranged at the interval between described second sphenoid, and described reflecting plate is fastened on described bottom surface.
Further, the thickness of described platysome is identical with the thickness of the thick end face of described second sphenoid, with the bottom surface of the fillet of the thick end face and inclined-plane that make described second sphenoid and described reflecting plate in same plane.
Another object of the present invention is again to provide a kind of liquid crystal indicator, and comprise the liquid crystal panel and above-mentioned backlight module that are oppositely arranged, above-mentioned backlight module provides display light source to described liquid crystal panel.
Beneficial effect of the present invention: the present invention is combined to form in the light incident sides of light guide plate the sphenoid presenting hydraucone shape up and down, this design can effectively reduce the thickness of light guide plate, thus reduce the thickness of backlight module and liquid crystal indicator, meet the requirement of liquid crystal indicator slimming, this design simultaneously can also improve the light coupling efficient of the light incident sides of light guide plate widely.
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 partial side view of liquid crystal indicator according to an embodiment of the invention;
Fig. 2 is the partial perspective view of backlight module according to an embodiment of the invention;
Fig. 3 is the partial perspective view of light guide plate according to an embodiment of the invention;
Fig. 4 is the partial side view of light guide plate according to an embodiment of the invention;
Fig. 5 is the partial perspective view of reflecting plate according to an embodiment of the invention;
Fig. 6 is the fragmentary bottom stereographic map according to an embodiment of the invention after reflecting plate and assembling light guiding plate;
Fig. 7 is the partial side view according to an embodiment of the invention after reflecting plate and assembling light guiding plate.
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.In addition, identical label can be used to represent identical element in whole instructions with accompanying drawing.
Fig. 1 is the partial side view of liquid crystal indicator according to an embodiment of the invention.
With reference to Fig. 1, liquid crystal indicator comprises the liquid crystal panel 2 and backlight module 1 that are oppositely arranged according to an embodiment of the invention, and wherein, backlight module 1 provides display light source to liquid crystal panel 2, to make liquid crystal panel 2 show image.Due to the innovation and creation that the structure that the present invention be directed to the light guide plate in backlight module 1 is carried out, therefore in order to avoid repeating, the concrete structure of liquid crystal panel 2 and liquid crystal panel 2 just here do not describe in detail with the assembling mode of backlight module 1, and those skilled in the art can refer to related art to know.
Below with reference to Fig. 2, backlight module 1 is described.Fig. 2 is the partial perspective view of backlight module according to an embodiment of the invention.
With reference to Fig. 2, backlight module 1 at least comprises according to an embodiment of the invention: light guide plate 10, reflecting plate 20, light source 30.Here, should be noted that, backlight module 1 also can comprise miscellaneous part according to an embodiment of the invention, such as carry the back of the body frame of light guide plate 10, reflecting plate 20 and light source 30, for improving by the blooming piece of the quality of the light of the end face outgoing of light guide plate 10, and with back of the body frame secure bond and light guide plate 10, reflecting plate 20, light source 30 and described blooming piece are fixed on the glue frame carried on the back in frame, but these parts are all prior aries, be not innovation and creation of the present invention points, those skilled in the art can refer to related art to know.
Below with reference to Fig. 3 and Fig. 4, light guide plate 10 is according to an embodiment of the invention described in detail.Fig. 3 is the partial perspective view of light guide plate according to an embodiment of the invention.Fig. 4 is the partial side view of light guide plate according to an embodiment of the invention.
In the lump with reference to Fig. 3 and Fig. 4, light guide plate 10 comprises light incident sides 11 and is connected with light incident sides 11 and the end face 12 be oppositely arranged and bottom surface 13.
Form at end face 12 and the junction of light incident sides 11 multiple first sphenoids 14 be positioned on end face 12, wherein, these first sphenoids 14 are spaced on end face 12, and further, these first sphenoids 14 are arranged on end face 12 at equal intervals; The thick end face 141 of each first sphenoid 14 is concordant with light incident sides 11, and namely thick end face 141 and the light incident sides 11 of each first sphenoid 14 are at grade, or the thick end face 141 of each first sphenoid 14 is upwards extended to form by light incident sides 11; And the inclined-plane 142 of the thick end face of connection 141 of the first sphenoid 14 is connected with end face 12 is smooth.
Further, the thick end face 141 place plane orthogonal of each first sphenoid 14 is in end face 12; That is, in the present embodiment, the vertical sectional shape of each first sphenoid 14 is right-angle triangle, one of two right-angle sides of this right-angle triangle coincide with end face 12 one of (or two right-angle sides claiming this right-angle triangle mutually merge with end face 12), it is upper and perpendicular to end face 12 with fillet (mark) of light incident sides 11 that another of two right-angle sides of right-angle triangle is positioned at end face 12, but the present invention is not limited to description here.
Similarly, form in bottom surface 13 and the junction of light incident sides 11 multiple second sphenoids 15 be positioned on bottom surface 13, wherein, these second sphenoids 15 are spaced on bottom surface 13, and further, these second sphenoids 15 are arranged on bottom surface 13 at equal intervals; The thick end face 151 of each second sphenoid 15 is concordant with light incident sides 11, and namely thick end face 151 and the light incident sides 11 of each second sphenoid 15 are at grade, or the thick end face 151 of each second sphenoid 15 is extended to form downwards by light incident sides 11; And the inclined-plane 152 of the thick end face of connection 151 of the second sphenoid 15 is connected with bottom surface 13 is smooth.
Further, the thick end face 151 place plane orthogonal of each second sphenoid 15 is in bottom surface 13; That is, in the present embodiment, the vertical sectional shape of each second sphenoid 15 is right-angle triangle, one of two right-angle sides of this right-angle triangle coincide with bottom surface 13 one of (or two right-angle sides claiming this right-angle triangle mutually merge with bottom surface 13), it is upper and perpendicular to bottom surface 13 with fillet (mark) of light incident sides 11 that another of two right-angle sides of right-angle triangle is positioned at bottom surface 13, but the present invention is not limited to description here.
In the present embodiment, first sphenoid 14 and second sphenoid 15 correspondence are arranged, and namely multiple first sphenoid 14 and multiple second sphenoid 15 one_to_one corresponding are arranged, but the present invention is not restricted to this.
Preferably, the first sphenoid 14 and the second sphenoid 15 are symmetrical arranged, but the present invention is not restricted to this.That is, when carrying out side-looking to light guide plate 10, the first sphenoid 14 and the combination of the second sphenoid 15 present hydraucone shape.
Continue with reference to Fig. 2, in the present embodiment, in the light incident sides 11 of light guide plate 10, laminating arranges multiple light source 30, but the present invention is not restricted to this, such as, can arrange multiple light source 30 in the position of the light incident sides 11 of contiguous light guide plate 10, namely light source 30 is not fitted light incident sides 11 yet.Further, each light source 30 is fitted in the thick end face 141 of the first corresponding sphenoid 14, the thick end face 151 of the second corresponding sphenoid 15 and light incident sides 11 therebetween.
Reflecting plate 20 is arranged under light guide plate 10.Be described in detail coordinating with the assembling of light guide plate 10 reflecting plate 20 below.
Fig. 5 is the partial perspective view of reflecting plate according to an embodiment of the invention.Fig. 6 is the fragmentary bottom stereographic map according to an embodiment of the invention after reflecting plate and assembling light guiding plate.Fig. 7 is the partial side view according to an embodiment of the invention after reflecting plate and assembling light guiding plate.
With reference to Fig. 5 to Fig. 7, one side of reflecting plate 20 forms spaced platysome 22, spacing distance wherein between platysome 22 is equal with the transverse width (namely the second sphenoid 15 is along the width perpendicular to paper direction) of the second sphenoid 15, and the transverse width of platysome 22 (namely platysome 22 is along the width perpendicular to paper direction) is equal.
When reflecting plate 20 is arranged under light guide plate 10, each platysome 22 of reflecting plate 20 is engaged in the interval between two corresponding the second sphenoids 15, and each second sphenoid 15 is engaged to the interval between two corresponding platysomes 22, reflecting plate 20 can be engaged on the bottom surface 13 of light guide plate 10 like this.
In addition, in order to make the reflecting plate after engaging 20 and light guide plate 10 bottom surface integrally smooth, the basal surface 21 of reflecting plate 20 and the thick end face 151 of the second sphenoid 15 and the fillet on inclined-plane 152 are in same plane, preferably, the thickness (comprising the thickness of platysome 22) of reflecting plate 20 is identical with the thickness of the thick end face 151 of the second sphenoid 15, but the present invention is not restricted to this.
In sum, according to embodiments of the invention, the thickness of light guide plate can be effectively reduced, thus reduce the thickness of backlight module and liquid crystal indicator, meet the requirement of liquid crystal indicator slimming; Meanwhile, because the light incident sides in light guide plate is combined to form the sphenoid presenting hydraucone shape up and down, this design can improve the light coupling efficient of the light incident sides of light guide plate widely.
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 light guide plate, comprises light incident sides (11) and is connected with described light incident sides (11) and the end face be oppositely arranged (12) and bottom surface (13), it is characterized in that,
Spaced first sphenoid (14) be positioned on described end face (12) is formed at described end face (12) and the junction of described light incident sides (11), the thick end face (141) of described first sphenoid (14) is concordant with described light incident sides (11), and the inclined-plane (142) be connected with thick end face (141) of described first sphenoid (14) is connected with described end face (12) is smooth;
Spaced second sphenoid (15) be positioned on described bottom surface (13) is formed in described bottom surface (13) and the junction of described light incident sides (11), the thick end face (151) of described second sphenoid (15) is concordant with described light incident sides (11), and the inclined-plane (152) be connected with thick end face (151) of described second sphenoid (15) is connected with described bottom surface (13) are smooth;
Wherein, described first sphenoid (14) and described second sphenoid (15) one_to_one corresponding.
2. light guide plate according to claim 1, is characterized in that, described first sphenoid (14) and described second sphenoid (15) are symmetrical arranged.
3. light guide plate according to claim 1 and 2, is characterized in that, the cross sectional shape of described first sphenoid (14) is at right angles triangular shaped; Wherein, one of two right-angle sides of right-angle triangle coincide with described end face (12), and another of two right-angle sides of right-angle triangle is perpendicular to described end face (12) and be positioned at described end face (12) with on the fillet of described light incident sides (11).
4. light guide plate according to claim 1 and 2, is characterized in that, the cross sectional shape of described second sphenoid (15) is at right angles triangular shaped; Wherein, one of two right-angle sides of right-angle triangle coincide with described bottom surface (13), and another of two right-angle sides of right-angle triangle is perpendicular to described bottom surface (13) and be positioned at described bottom surface (13) with on the fillet of described light incident sides (11).
5. a backlight module, at least comprise light guide plate (10) and reflecting plate (20), described light guide plate (10) comprises light incident sides (11) and is connected with described light incident sides (11) and the end face be oppositely arranged (12) and bottom surface (13), it is characterized in that
Spaced first sphenoid (14) be positioned on described end face (12) is formed at described end face (12) and the junction of described light incident sides (11), the thick end face (141) of described first sphenoid (14) is concordant with described light incident sides (11), and the inclined-plane (142) be connected with thick end face (141) of described first sphenoid (14) is connected with described end face (12) is smooth;
Spaced second sphenoid (15) be positioned on described bottom surface (13) is formed in described bottom surface (13) and the junction of described light incident sides (11), the thick end face (151) of described second sphenoid (15) is concordant with described light incident sides (11), and the inclined-plane (152) be connected with thick end face (151) of described second sphenoid (15) is connected with described bottom surface (13) are smooth;
Wherein, described first sphenoid (14) and described second sphenoid (15) one_to_one corresponding;
Described reflecting plate (20) is fastened on described bottom surface (13).
6. backlight module according to claim 5, is characterized in that, described first sphenoid (14) and described second sphenoid (15) are symmetrical arranged.
7. the backlight module according to claim 5 or 6, is characterized in that, the cross sectional shape of described first sphenoid (14) is at right angles triangular shaped; Wherein, one of two right-angle sides of right-angle triangle coincide with described end face (12), and another of two right-angle sides of right-angle triangle is perpendicular to described end face (12) and be positioned at described end face (12) with on the fillet of described light incident sides (11).
8. the backlight module according to claim 5 or 6, is characterized in that, the cross sectional shape of described second sphenoid (15) is at right angles triangular shaped; Wherein, one of two right-angle sides of right-angle triangle coincide with described bottom surface (13), and another of two right-angle sides of right-angle triangle is perpendicular to described bottom surface (13) and be positioned at described bottom surface (13) with on the fillet of described light incident sides (11).
9. backlight module according to claim 5, it is characterized in that, one side of described reflecting plate (20) forms spaced platysome (22), described platysome (22) is arranged at the interval between described second sphenoid (15), and described reflecting plate (20) is fastened on described bottom surface (13).
10. backlight module according to claim 9, it is characterized in that, the thickness of described platysome (22) is identical with the thickness of the thick end face (151) of described second sphenoid (15), is in same plane with the fillet of thick end face (151) Yu inclined-plane (152) making described second sphenoid (15) and the basal surface (21) of described reflecting plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522643.7A CN105137527A (en) | 2015-08-24 | 2015-08-24 | Light guide plate and back light module having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522643.7A CN105137527A (en) | 2015-08-24 | 2015-08-24 | Light guide plate and back light module having the same |
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| Publication Number | Publication Date |
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| CN105137527A true CN105137527A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510522643.7A Pending CN105137527A (en) | 2015-08-24 | 2015-08-24 | Light guide plate and back light module having the same |
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| Country | Link |
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| CN (1) | CN105137527A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101317038A (en) * | 2005-11-28 | 2008-12-03 | 夏普株式会社 | Backlight device and liquid crystal display device using the same |
| CN101782217A (en) * | 2009-01-16 | 2010-07-21 | 索尼公司 | Planar light-emitting device, panel and display device |
| CN102563541A (en) * | 2011-08-17 | 2012-07-11 | 友达光电股份有限公司 | Light guide plate and backlight module |
| US20130163282A1 (en) * | 2011-12-22 | 2013-06-27 | Minebea Co., Ltd. | Spread illuminating apparatus |
| US20140111740A1 (en) * | 2012-10-24 | 2014-04-24 | Japan Display Inc. | Liquid crystal display device |
| CN204331227U (en) * | 2014-10-15 | 2015-05-13 | 友达光电股份有限公司 | Backlight module |
-
2015
- 2015-08-24 CN CN201510522643.7A patent/CN105137527A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101317038A (en) * | 2005-11-28 | 2008-12-03 | 夏普株式会社 | Backlight device and liquid crystal display device using the same |
| CN101782217A (en) * | 2009-01-16 | 2010-07-21 | 索尼公司 | Planar light-emitting device, panel and display device |
| CN102563541A (en) * | 2011-08-17 | 2012-07-11 | 友达光电股份有限公司 | Light guide plate and backlight module |
| US20130163282A1 (en) * | 2011-12-22 | 2013-06-27 | Minebea Co., Ltd. | Spread illuminating apparatus |
| US20140111740A1 (en) * | 2012-10-24 | 2014-04-24 | Japan Display Inc. | Liquid crystal display device |
| CN204331227U (en) * | 2014-10-15 | 2015-05-13 | 友达光电股份有限公司 | Backlight module |
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Application publication date: 20151209 |
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