CN105116606A - Reflection sheet, backlight module and display device - Google Patents

Reflection sheet, backlight module and display device Download PDF

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Publication number
CN105116606A
CN105116606A CN201510364777.0A CN201510364777A CN105116606A CN 105116606 A CN105116606 A CN 105116606A CN 201510364777 A CN201510364777 A CN 201510364777A CN 105116606 A CN105116606 A CN 105116606A
Authority
CN
China
Prior art keywords
plate
light guide
base plate
backlight module
fixed head
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
Application number
CN201510364777.0A
Other languages
Chinese (zh)
Inventor
陈倩
刘中杰
郭伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to CN201510364777.0A priority Critical patent/CN105116606A/en
Publication of CN105116606A publication Critical patent/CN105116606A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means 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
    • G02B6/0055Reflecting element, sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133605Direct backlight including specially adapted reflectors

Abstract

The invention provides a reflection sheet and a backlight module; the backlight module comprises a light guide plate, a backlight source and an optical film; the reflection sheet comprises a bottom plate, a side plate arranged on the periphery of the bottom plate, and a fixed plate arranged parallel to the bottom plate; the side plate bends and extends in a direction far away from a bottom plate end portion and towards the bottom plate, thus forming the fixed plate; the light guide plate comprises a channel, a light emitting surface, and a light entrance surface arranged on an inner side of the channel; the bottom plate, the side plate and the fixed plate form a contain slot; the backlight source comprises a substrate and a lamp source arranged on the substrate; the light guide plate, the backlight source and the optical film are arranged in the contain slot; the light guide plate is arranged on the bottom plate; the lamp source is arranged in the channel and opposite to the light entrance surface; the optical film is arranged on the light emitting surface; the fixed plate abuts against the substrate and the edge of the optical film. The invention also provides a display device.

Description

Reflecting piece, backlight module and display device
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of reflecting piece, backlight module and display device.
Background technology
At present, liquid crystal indicator has been widely used in various electronic product as the display unit of electronic equipment, and along with the development that electronic product is lightening, the frame of electronic equipment is designed to be more and more narrow.Backlight module is then a vitals in liquid crystal indicator, and the frame of backlight module also certainly will be more and more narrow.
Backlight module of the prior art comprises: a light guide plate, blooming piece, reflecting piece are arranged at glue frame, lamp source flexible PCB and shading rubber belt around described light guide plate, described light guide plate, blooming piece, reflecting piece are contained in glue frame and blooming piece is fixed on glue frame by shading double sticky tape, and LCDs is then fixed by double faced adhesive tape and back light unit surrounding.Wherein glue frame is for bearing the effect of fixed L ED lamp bar and all kinds of diaphragm, and the fixing laminating length also needing the double faced adhesive tape be attached on glue frame to reach certain of LCD.If under narrow frame requires, so glue frame width can corresponding edge narrow, so, add the difficulty that glue frame is shaping, and it is inadequate also may to there will be the length that double faced adhesive tape is combined on glue frame, causes assembling unstable.
Summary of the invention
The object of the present invention is to provide a kind of reflecting piece and backlight module, ensure backlight module assemble stable and realize the effect of narrow frame.
The present invention also provides a kind of display device.
The invention provides a kind of reflecting piece, described reflecting piece comprises base plate, be located at the side plate of base portion peripheral and be parallel to the fixed head that described base plate arranges, described fixed head is extended to form to the bending of base plate direction away from bottom end by described side plate, and described base plate, side plate and fixed head surround accepting groove.
Wherein, described side plate is reflective surface towards the surface of described base plate and the surface of base plate.
The invention provides a kind of backlight module, described backlight module comprises light guide plate, reflecting piece, backlight and blooming piece, described reflecting piece comprises base plate, be located at the side plate of base portion peripheral and be parallel to the fixed head of described base plate setting, described fixed head is extended to form to the bending of base plate direction away from bottom end by described side plate, described light guide plate comprises groove, exiting surface and the incidence surface be positioned at inside groove, described base plate, side plate and fixed head surround accepting groove, described backlight comprises substrate and is located at the lamp source on substrate, described light guide plate and institute's backlight and blooming piece are loaded in described accepting groove, described light guide plate is loaded on base plate, it is relative with incidence surface that described lamp source is positioned at groove, described blooming piece is loaded on exiting surface, described fixed head compresses described substrate and blooming piece edge.
Wherein, described side plate is reflective surface towards the surface of described base plate and the surface of base plate.
Wherein, fixed by double faced adhesive tape between described fixed head and described substrate, between described fixed head and blooming piece.
Wherein, described groove is located at described light guide plate side perpendicular to described exiting surface and is run through light guide plate.
Wherein, described light guide plate also comprises the bottom surface of the opposing setting with exiting surface, and described bottom edge is provided with slot to make way, is provided with double faced adhesive tape in described slot to make way, the height of described double faced adhesive tape is concordant with described bottom surface, and described double faced adhesive tape fixes base plate and the light guide plate of described reflecting piece.
Wherein, the part of described light guide plate exiting surface being placed optical thin film is recess.
The invention provides a kind of display device, described display device comprises described backlight module and display panel, and described display panel is loaded on described backlight module and supports with the surface of the fixed head of described reflecting piece base plate dorsad.
Wherein, fixed by double faced adhesive tape between described display panel and fixed head.
Backlight module of the present invention directly utilizes reflecting piece to carry and lightguide plate fixing, backlight and blooming piece as supporting body, saves the making of glue frame, avoids shaping difficulty, ensure that backlight module realizes the design of narrow frame simultaneously.And the fixed head of described reflecting piece has enough areas to solid spacing light guide plate, backlight and blooming piece under the prerequisite not increasing border width, ensure that the assembling quality of backlight module.
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.
Fig. 1 is the backlight module schematic cross-section with reflecting piece of the embodiment of the present invention.
Fig. 2 is the light guide plate schematic cross-section described in Fig. 1.
Fig. 3 is another angle cross section schematic diagram of the backlight module shown in Fig. 1.
Fig. 4 is the schematic diagram of the display device of the backlight module had described in Fig. 1.
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.
Refer to Fig. 1, the good embodiment of the present invention provides a kind of reflecting piece and and is provided with the backlight module of described reflecting piece.Described reflecting piece 10 comprises base plate 11, be located at the side plate 12 of base plate 11 periphery and be parallel to the fixed head 13 that described base plate 11 arranges.Described fixed head 13 is extended to form to the bending of base plate 11 direction away from base plate 11 end by described side plate 12, and described base plate 11, side plate 12 and fixed head 13 surround accepting groove.Described backlight module also comprises light guide plate 20, backlight 30 and blooming piece 40.The incidence surface 23 that described light guide plate 20 comprises groove 21, exiting surface 22 and is positioned at inside groove 21.Described backlight 30 comprises substrate 31 and is located at the lamp source 32 on substrate 31.Described light guide plate 20 is loaded in described accepting groove with institute's backlight 30 and blooming piece 40, described light guide plate 20 is loaded on base plate 11, it is relative with incidence surface 23 that described lamp source 32 is positioned at groove 21, described blooming piece 40 is loaded on exiting surface 22, and described fixed head 13 compresses described substrate 21 and blooming piece 40 edge.
Further, described side plate 12 is reflective surface towards the surface of described base plate 11 and the surface of base plate 11.In the present embodiment, described reflecting piece 10 is bent to form by plate body, its base plate 11 returns in light guide plate 20 for light reflection light guide plate 20 exposed, and side plate 12 be set to reflective surface lamp source 32 can not entered incidence surface 23 light reflection enter incidence surface 23, improve light source utilization rate.
Refer to Fig. 2 and Fig. 3, described light guide plate 20 is rectangular panel body, its minor face 25 being provided with two relative long limits 24 and connecting two long limits 24.Position near minor face 25 on described exiting surface 22 is provided with described groove 21.In the present embodiment, described groove 21 is located at described light guide plate 20 side perpendicular to described exiting surface 22 and is run through light guide plate 20.Groove 21 is several and along the line spread being parallel to minor face 25.Described incidence surface 23 is the groove sidewall away from end limit of described groove 21.
Described substrate 31 is bar shaped plate body, and the quantity in described lamp source 32 is identical with described groove 21 quantity and position is corresponding.Several lamp source 32 is spaced the surface in described substrate 31.Described optical thin film 40 is multilayer film superposition formation, and it is affixed on the exiting surface 22 of described light guide plate 20.When light guide plate 20, backlight 30 and blooming piece 40 are contained in the accepting groove of reflecting piece 10 formation, described base plate 11, light guide plate 20 and optical thin film 40 superpose setting successively, described lamp source 32 is contained in described groove 21, and described substrate 31 is held in the groove 21 of light guide plate 20 around.Substrate 31 and optical thin film 40 are limited in described accepting groove by described fixed head 13.
Further, fixed by double faced adhesive tape 50 between described fixed head 13 and described substrate 31, between described fixed head 13 and blooming piece 40.
Further, described light guide plate 20 also comprises the bottom surface 27 with the opposing setting of exiting surface 22, and edge, described bottom surface 27 is provided with slot to make way 26, and described slot to make way 26 is arranged around described bottom surface 27, and is provided with double faced adhesive tape 261 in slot to make way 26.The height of described double faced adhesive tape 261 is concordant with described bottom surface 27, and described double faced adhesive tape 261 fixes base plate 11 and the light guide plate 20 of described reflecting piece 10.Described slot to make way 26 is positioned at and but runs through long limit 24 near long limit, and then make described double faced adhesive tape 261 form an extension 262 on long limit 24, when described light guide plate 20 is loaded on after on base plate 11, described double faced adhesive tape 261 glues note with described base plate 11 and side plate 12 respectively with described extension 262, the setting of slot to make way 26 saves double faced adhesive tape and takes up room, and then reduces the thickness of backlight module.
Further, the part of the exiting surface 22 of described light guide plate 20 being placed optical thin film 40 is recess 28.In the present embodiment, described recess 28 is located in the middle part of described exiting surface 22, makes exiting surface 22 periphery form boss-shaped, is the thickness for reducing backlight module equally, and boss is for supporting described substrate 31 and fixed head 13, is fixed between described substrate 31 and boss by double faced adhesive tape.
Backlight module of the present invention directly utilizes reflecting piece 10 to carry as supporting body and lightguide plate fixing 20, backlight 30 and blooming piece 40, saves the making of glue frame, avoids shaping difficulty, ensure that backlight module realizes the design of narrow frame simultaneously.And the fixed head 13 of described reflecting piece 10 has enough areas to solid spacing light guide plate 20, backlight 30 and blooming piece 40 under the prerequisite not increasing border width, ensure that the assembling quality of backlight module.
Refer to Fig. 4, the present invention also provides a kind of display device, and described display device comprises described backlight module and display panel 60, and described display panel 60 is loaded on described backlight module and supports with the surface of the fixed head 13 of described reflecting piece 10 base plate 11 dorsad.Fixed by double faced adhesive tape 70 between described display panel 60 and fixed head 13.Owing to saving glue frame, namely reduce backlight module border width, and fixed head there are enough length work double faced adhesive tapes to fix described display panel 60, ensure that the assemble stable of backlight module and display panel.
Above disclosedly be only present pre-ferred embodiments, 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 reflecting piece, it is characterized in that, described reflecting piece comprises base plate, be located at the side plate of base portion peripheral and be parallel to the fixed head that described base plate arranges, described fixed head is extended to form to the bending of base plate direction away from bottom end by described side plate, and described base plate, side plate and fixed head surround accepting groove.
2. reflecting piece as claimed in claim 1, it is characterized in that, described side plate is reflective surface towards the surface of described base plate and the surface of base plate.
3. a backlight module, it is characterized in that, described backlight module comprises light guide plate, reflecting piece, backlight and blooming piece, described reflecting piece comprises base plate, be located at the side plate of base portion peripheral and be parallel to the fixed head of described base plate setting, described fixed head is extended to form to the bending of base plate direction away from bottom end by described side plate, described light guide plate comprises groove, exiting surface and the incidence surface be positioned at inside groove, described base plate, side plate and fixed head surround accepting groove, described backlight comprises substrate and is located at the lamp source on substrate, described light guide plate and institute's backlight and blooming piece are loaded in described accepting groove, described light guide plate is loaded on base plate, it is relative with incidence surface that described lamp source is positioned at groove, described blooming piece is loaded on exiting surface, described fixed head compresses described substrate and blooming piece edge.
4. backlight module as claimed in claim 3, it is characterized in that, described side plate is reflective surface towards the surface of described base plate and the surface of base plate.
5. backlight module as claimed in claim 4, be is characterized in that, fixed between described fixed head and described substrate, between described fixed head and blooming piece by double faced adhesive tape.
6. backlight module as claimed in claim 5, it is characterized in that, described groove is located at described light guide plate side perpendicular to described exiting surface and is run through light guide plate.
7. backlight module as claimed in claim 6, it is characterized in that, described light guide plate also comprises the bottom surface of the opposing setting with exiting surface, described bottom edge is provided with slot to make way, double faced adhesive tape is provided with in described slot to make way, the height of described double faced adhesive tape is concordant with described bottom surface, and described double faced adhesive tape fixes base plate and the light guide plate of described reflecting piece.
8. backlight module as claimed in claim 6, it is characterized in that, the part of described light guide plate exiting surface being placed optical thin film is recess.
9. a display device, described display device comprises backlight module described in any one of 3-8 and display panel, and described display panel is loaded on described backlight module and supports with the surface of the fixed head of described reflecting piece base plate dorsad.
10. display device as claimed in claim 9, be is characterized in that, fixed between described display panel and fixed head by double faced adhesive tape.
CN201510364777.0A 2015-06-26 2015-06-26 Reflection sheet, backlight module and display device Pending CN105116606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510364777.0A CN105116606A (en) 2015-06-26 2015-06-26 Reflection sheet, backlight module and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510364777.0A CN105116606A (en) 2015-06-26 2015-06-26 Reflection sheet, backlight module and display device
PCT/CN2015/083757 WO2016206139A1 (en) 2015-06-26 2015-07-10 Reflective sheet, backlight module and display device

Publications (1)

Publication Number Publication Date
CN105116606A true CN105116606A (en) 2015-12-02

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Country Link
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WO (1) WO2016206139A1 (en)

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CN105334668A (en) * 2015-12-08 2016-02-17 武汉华星光电技术有限公司 Laterally-incident-type backlight module and liquid crystal display device
CN105650542A (en) * 2016-01-04 2016-06-08 京东方光科技有限公司 Backlight module and display device
CN108181761A (en) * 2017-12-21 2018-06-19 武汉华星光电技术有限公司 Display and its backlight module
CN108881761A (en) * 2018-07-18 2018-11-23 深圳创维-Rgb电子有限公司 A kind of backboard, display module and display equipment
WO2019127740A1 (en) * 2017-12-28 2019-07-04 惠州市华星光电技术有限公司 Backlight module and display device
US10495925B2 (en) 2017-12-28 2019-12-03 Huizhou China Star Optoelectronics Technology Co., Ltd. Backlight module and display device
CN111766979A (en) * 2020-06-12 2020-10-13 惠州市华星光电技术有限公司 Display panel, touch display device and manufacturing method thereof

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CN105334668A (en) * 2015-12-08 2016-02-17 武汉华星光电技术有限公司 Laterally-incident-type backlight module and liquid crystal display device
CN105650542A (en) * 2016-01-04 2016-06-08 京东方光科技有限公司 Backlight module and display device
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CN108181761A (en) * 2017-12-21 2018-06-19 武汉华星光电技术有限公司 Display and its backlight module
WO2019127740A1 (en) * 2017-12-28 2019-07-04 惠州市华星光电技术有限公司 Backlight module and display device
US10495925B2 (en) 2017-12-28 2019-12-03 Huizhou China Star Optoelectronics Technology Co., Ltd. Backlight module and display device
CN108881761A (en) * 2018-07-18 2018-11-23 深圳创维-Rgb电子有限公司 A kind of backboard, display module and display equipment
CN108881761B (en) * 2018-07-18 2021-03-05 深圳创维-Rgb电子有限公司 Backplate, display module assembly and display device
CN111766979A (en) * 2020-06-12 2020-10-13 惠州市华星光电技术有限公司 Display panel, touch display device and manufacturing method thereof

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Application publication date: 20151202