CN106444151B - Backlight module and liquid crystal display - Google Patents

Backlight module and liquid crystal display Download PDF

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Publication number
CN106444151B
CN106444151B CN201610876716.7A CN201610876716A CN106444151B CN 106444151 B CN106444151 B CN 106444151B CN 201610876716 A CN201610876716 A CN 201610876716A CN 106444151 B CN106444151 B CN 106444151B
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CN
China
Prior art keywords
light
guide plate
light guide
glue
backlight module
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Active
Application number
CN201610876716.7A
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Chinese (zh)
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CN106444151A (en
Inventor
陈倩
刘中杰
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
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to CN201610876716.7A priority Critical patent/CN106444151B/en
Publication of CN106444151A publication Critical patent/CN106444151A/en
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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/133615Edge-illuminating devices, i.e. illuminating from the side
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314Back frames

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

A kind of backlight module, including glue frame, light tube group, light guide plate, diaphragm group and mouth word glue, the glue frame is in a strip shape, the light guide plate includes including light-emitting surface, the shady face that is oppositely arranged with the light-emitting surface and the first side for connecting the light-emitting surface and the shady face, the light tube group is adjacent to the first side of the light guide plate to emit light to the light guide plate, the side away from the light guide plate of the light tube group is arranged in the glue frame, the diaphragm group is arranged on the light-emitting surface of the light guide plate, the diaphragm group is fixed by the mouth word glue with the glue frame and/or the light guide plate.Backlight module according to the present invention can be realized the narrow side design of backlight module, and can reduce cost.The present invention also provides a kind of liquid crystal displays.

Description

Backlight module and liquid crystal display
Technical field
The present invention relates to display equipment technical field more particularly to a kind of backlight modules and liquid crystal display.
Background technique
Backlight module is used to provide backlight for the display module in liquid crystal display, and existing backlight module is using frame-type Glue frame is placed in glue frame as bearing structure, light guide plate and optical diaphragm, and utilizes mouth word glue by glue frame and optical film Piece, which touch, to be fixed.
But as under the trend of liquid crystal display miniaturization, above-mentioned assembling mode not save the cost, such as glue frame are logical It is made frequently with injection molding process, needs to make mold, higher cost, in addition, the display of small size needs narrow side to design, Mold and Shooting Technique also rise with it.
Summary of the invention
The present invention provides backlight module and liquid crystal display, can be realized the narrow side design of backlight module, and can drop Low cost.
The present invention provides a kind of backlight module, including glue frame, light tube group, light guide plate, diaphragm group and mouth word glue, the glue frame It is in a strip shape, the light guide plate include include light-emitting surface, the shady face being oppositely arranged with the light-emitting surface and connect it is described go out light The first side in face and the shady face, the light tube group is adjacent to the first side of the light guide plate to emit to the light guide plate The side away from the light guide plate of the light tube group is arranged in light, the glue frame, and the diaphragm group is arranged in the leaded light On the light-emitting surface of plate, the diaphragm group is fixed by the mouth word glue with the glue frame and/or the light guide plate.
Wherein, the light guide plate further includes the second side being oppositely arranged with the first side, and connection described the One side and the second side and the third side and the 4th side being oppositely arranged, the second side, the third side Face and the 4th side are covered by the mouth word glue.
Wherein, the second side of the light guide plate, the third side and the 4th side are equipped with sawtooth knot Structure, the broached-tooth design are covered by the mouth word glue.
Wherein, black glue is coated between the broached-tooth design and the mouth word glue.
Wherein, further include diffusion sheet, lower prismatic lens and upper prismatic lens, the light guide plate include light-emitting surface and with it is described go out The shady face that smooth surface is oppositely arranged, the diffusion sheet, the lower prismatic lens and the upper prismatic lens are cascading described On light-emitting surface, the second side of the light guide plate, the third side and the 4th side by the mouth word glue with The diffusion sheet, the lower prismatic lens are connected with the upper prismatic lens.
Wherein, the diffusion sheet, the lower prismatic lens and the upper prismatic lens are in rectangle plane shape.
Wherein, the diffusion sheet includes opposite first end and second end, and the first end of the diffusion sheet passes through viscous Glue is fixedly connected with the fixed plate of the light tube group and/or the glue frame.
Wherein, the light tube group includes fluorescent tube and the fixation for being set to above the fluorescent tube and be used to fix the fluorescent tube Plate, the fluorescent tube adjacent to the light guide plate the first side, with to the light guide plate emit light.
It wherein, further include backboard, the glue frame, the fluorescent tube and the light guide plate are arranged on the backboard.
The present invention also provides a kind of liquid crystal display, including Liquid Crystal Module and backlight module as described in any one of the above embodiments, The backlight module is set to the back side of the Liquid Crystal Module.
Compared to the prior art, the glue frame in the backlight module in the present invention is in a strip shape, and the glue frame is located at light tube group The side away from light guide plate, and other side peripheries of light guide plate will not be surrounded by glue frame, therefore, backlight according to the present invention Glue frame used in module enables to the frame of backlight module to narrow, and can reach narrow side effect, and the glue frame system of strip Simple process is made, cost can be saved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is the schematic cross-section of the side LED of backlight module according to the present invention;
Fig. 2 is the schematic cross-section of the non-side LED of backlight module according to the present invention;
Fig. 3 is the floor map of the light guide plate in the backlight module of Fig. 1 and Fig. 2;
The side and the floor map after mouth word gluing knot that Fig. 4 is the light guide plate in the backlight module of Fig. 1 and Fig. 2.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, showing backlight module according to the present invention, which includes light tube group 1, light guide plate 2, diffusion Piece 3, upper prismatic lens 4, lower prismatic lens 5 and glue frame 6.Diffusion sheet 3, upper prismatic lens 4 and lower prismatic lens 5 constitute the diaphragm of backlight module Group, the backlight module in the present embodiment are side-entering type backlight module, and light tube group 1 includes LED light 101 and is arranged in light tube group 1 Fixed plate 102 square, for fixing LED light 101.It is readily appreciated that, light tube group 1 can also use other in addition to LED light Light emitting source, such as CCFL (Cathode Fluorescent Lamp, cathode fluorescent tube) etc., fixed plate 102 then use example Such as FPC (Flexible Printed Circuit, flexible circuit board) material.
Also referring to Fig. 1 to Fig. 4, light guide plate 2 is used for the light-output for launching light tube group 1, and light guide plate 2 includes light Face 201, the shady face 202 being oppositely arranged with light-emitting surface 201 and the side for connecting light-emitting surface 201 and shady face 202, side packet The third side 233 and the 4th side 234 for including the first side 231 being oppositely arranged and second side 232 and being oppositely arranged, and Light tube group 1 is adjacent to the first side 231 of light guide plate 2 to emit light to light guide plate 2.Diffusion sheet 3, lower prismatic lens 5 and upper prism Piece 4 is cascading on the light-emitting surface 201 of light guide plate 2.
Diffusion sheet 3 is for being diffused light derived from light guide plate 2, to guarantee the uniform of light.Lower prismatic lens 5 are set to 3 top of diffusion sheet, upper prismatic lens 4 are set to lower 5 top of prismatic lens, and upper prismatic lens 4 and lower prismatic lens 5 are used to expand diffusion sheet 3 Scattered light is collected, to improve the brightness of light.Diffusion sheet 3, upper prismatic lens 4 and lower prismatic lens 5 are in rectangle plane shape, and And diffusion sheet 3 includes opposite first end and second end, the first end of diffusion sheet 3 passes through the fixed plate 102 of viscose glue and light tube group 1 And/or glue frame 6 is fixedly connected.
Referring again to Fig. 1, the side away from light guide plate 2 of LED light 101 is arranged in glue frame 6, and glue frame 6 is in a strip shape, and guide-lighting It will not be surrounded by glue frame 6 around the second side 232 of plate 2, third side 233 and the 4th side 234, therefore, according to the present invention Backlight module used in glue frame 6 enable to the frame of backlight module to narrow, narrow side effect can be reached, and strip 6 manufacturing process of glue frame is simple, can save cost.
It is to be appreciated that glue frame 6 used in backlight module according to the present invention can in long strip, arc-shaped etc..
At the first end of diffusion sheet 3, black one side glue 7 can be pasted on diffusion sheet 3, and mouth word glue 8 is pasted onto light tube group 1 Fixed plate 102, in glue frame 6 and black one side glue 7 so that the first end of diffusion sheet 3 can be with fixed plate 102 and glue frame 6 are fixedly connected.Black one side glue 7 and mouth word glue 8 can also play interception, can prevent the generation of firefly effect.In At the first end of diffusion sheet 3, the end face vertical non-alignment towards light tube group 1 of upper prismatic lens 4 and lower prismatic lens 5, i.e., at aforementioned end Face is aligned on the direction on the surface perpendicular to diffusion sheet 3.Therefore, at the first end of diffusion sheet 3, the light of the sending of light guide plate 2 Line can be blocked by black one side glue 7, without directly launching, thus cause the bright line of backlight on a display screen, thus The generation of light leakage phenomena can be effectively prevented.
Referring to Fig. 2, showing the schematic cross-section of the non-side LED of backlight module according to the present invention, mouth word glue 8 is turned down extremely Second side 232, third side 233 and the 4th side 234 of light guide plate 2, thus light guide plate 2 can pass through mouth word glue 8 and expansion Discrete piece 3, lower prismatic lens 4 are connected with upper prismatic lens 5,.
Fig. 3 and Fig. 4 are please referred to, second side 232, the third of light guide plate 2 used in backlight module according to the present invention Side 233 and the 4th side 234 are equipped with broached-tooth design 204, and the effect of the broached-tooth design 204 is the bonding plane for increasing mouth word glue 8 Product, increases mouth word glue 8 and second side 232, the cohesive force of third side 233 and the 4th side 234, and anti-seam allowance word glue 8 tilts.
Further, black glue 9 can be filled between broached-tooth design 204 and mouth word glue 8, which can fill up sawtooth knot Structure, black glue 9 are capable of increasing 8 second side 232 of mouthful word glue, the cohesive force of third side 233 and the 4th side 234, further Anti- seam allowance word glue 8 tilts, and black glue 9 can play the role of blocking to the light in light guide plate 2, prevent 2 light leakage of light guide plate.
Further, backlight module according to the present invention further includes backboard 10, glue frame 6, the LED light 101 of light tube group 1 and Light guide plate 2 is arranged on backboard 10, and backboard 10 can play the role of carrying, and backboard 10 is reflector, can reflect and lead The light that the shady face 202 of tabula rasa 2 issues, so as to make full use of the light in light guide plate 2.
Backlight module according to the present invention can be used in all kinds of liquid crystal displays, backlight module setting according to the present invention In the back side of Liquid Crystal Module, thus light needed for providing display for Liquid Crystal Module.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and wants according to right of the present invention Made equivalent variations is sought, is still belonged to the scope covered by the invention.

Claims (7)

1. a kind of backlight module, which is characterized in that including glue frame, light tube group, light guide plate, diaphragm group and mouth word glue, the glue frame It is in a strip shape, the light guide plate include light-emitting surface, the shady face being oppositely arranged with the light-emitting surface and connect the light-emitting surface and The first side of the shady face, the second side being oppositely arranged with the first side, and the connection first side and The second side and the third side and the 4th side being oppositely arranged, the second side, the third side and described 4th side is equipped with broached-tooth design, and the broached-tooth design is covered by the mouth word glue, and the broached-tooth design and the mouth Between word glue coat black glue, the light tube group adjacent to the light guide plate first side with to the light guide plate emit light, The side away from the light guide plate of the light tube group is arranged in the glue frame, and the institute of the light guide plate is arranged in the diaphragm group It states on light-emitting surface, the mouth word glue has an interception, and the diaphragm group passes through the mouth word glue and the glue frame and/or described Light guide plate is fixed.
2. backlight module as described in claim 1, which is characterized in that the diaphragm group include diffusion sheet, lower prismatic lens and on Prismatic lens, the diffusion sheet, the lower prismatic lens and the upper prismatic lens are cascading on the light-emitting surface, described to lead The second side of tabula rasa, the third side and the 4th side pass through the mouth word glue and the diffusion sheet, described Lower prismatic lens are connected with the upper prismatic lens.
3. backlight module as claimed in claim 2, which is characterized in that the diffusion sheet, the lower prismatic lens and the upper rib Eyeglass is in rectangle plane shape.
4. backlight module as claimed in claim 3, which is characterized in that the diffusion sheet includes opposite first end and second End, the fixed company of the fixed plate and/or the glue frame that the first end of the diffusion sheet passes through viscose glue and the light tube group It connects.
5. backlight module as claimed in claim 4, which is characterized in that the light tube group includes fluorescent tube and is set to the fluorescent tube Top and for fixing the fixed plate of the fluorescent tube, the fluorescent tube adjacent to the light guide plate the first side, with to described Light guide plate emits light.
6. backlight module as claimed in claim 5, which is characterized in that it further include backboard, the glue frame, the fluorescent tube and institute Light guide plate is stated to be arranged on the backboard.
7. a kind of liquid crystal display, which is characterized in that including Liquid Crystal Module and such as backlight as claimed in any one of claims 1 to 6 Module, the backlight module are set to the back side of the Liquid Crystal Module.
CN201610876716.7A 2016-10-08 2016-10-08 Backlight module and liquid crystal display Active CN106444151B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN106444151A CN106444151A (en) 2017-02-22
CN106444151B true CN106444151B (en) 2019-12-03

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107179577A (en) * 2017-06-07 2017-09-19 武汉华星光电技术有限公司 A kind of backlight module and display device
US10401551B2 (en) 2017-06-07 2019-09-03 Wuhan China Star Optoelectronics Technology Co., Ltd Backlight module and display device
CN107728365A (en) * 2017-10-31 2018-02-23 武汉华星光电技术有限公司 Narrow frame display panel and display device
CN108319078A (en) * 2018-04-25 2018-07-24 武汉华星光电技术有限公司 Backlight module and display device
US10712494B2 (en) 2018-04-25 2020-07-14 Wuhan China Star Optoelectronics Technology Co., Ltd. Backlight module and display device
CN108983500A (en) * 2018-09-27 2018-12-11 武汉华星光电技术有限公司 Backlight module and display device
CN109143686B (en) * 2018-09-30 2021-11-19 厦门天马微电子有限公司 Backlight module, display module and electronic equipment
CN111273487A (en) * 2020-03-26 2020-06-12 武汉华星光电技术有限公司 Backlight module and display device
CN114415420A (en) * 2022-01-18 2022-04-29 武汉华星光电技术有限公司 Backlight module and liquid crystal display device
CN115032827A (en) * 2022-07-15 2022-09-09 深圳市国显科技有限公司 LCM (liquid Crystal Module) liquid crystal display module structure for preventing membrane material from being misplaced

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CN103244867A (en) * 2012-02-10 2013-08-14 中强光电股份有限公司 Backlight module
KR20140076293A (en) * 2012-12-12 2014-06-20 엘지디스플레이 주식회사 Liquid crystal display device
CN204314572U (en) * 2014-12-22 2015-05-06 深圳市隆利科技发展有限公司 Liquid crystal display module leakproof light type shading glue structure
CN205157927U (en) * 2015-10-30 2016-04-13 信利半导体有限公司 Structure of being shaded and display panel
CN105629549A (en) * 2016-01-26 2016-06-01 武汉华星光电技术有限公司 Rubber frame, backlight module and display device
CN105739181A (en) * 2016-04-28 2016-07-06 武汉华星光电技术有限公司 Frame adhesive, frame adhesive manufacturing method and backlight module manufacturing method
CN205620572U (en) * 2016-03-17 2016-10-05 深圳市隆利科技股份有限公司 Light guide plate with leak protection photo structure

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Publication number Priority date Publication date Assignee Title
CN103244867A (en) * 2012-02-10 2013-08-14 中强光电股份有限公司 Backlight module
KR20140076293A (en) * 2012-12-12 2014-06-20 엘지디스플레이 주식회사 Liquid crystal display device
CN204314572U (en) * 2014-12-22 2015-05-06 深圳市隆利科技发展有限公司 Liquid crystal display module leakproof light type shading glue structure
CN205157927U (en) * 2015-10-30 2016-04-13 信利半导体有限公司 Structure of being shaded and display panel
CN105629549A (en) * 2016-01-26 2016-06-01 武汉华星光电技术有限公司 Rubber frame, backlight module and display device
CN205620572U (en) * 2016-03-17 2016-10-05 深圳市隆利科技股份有限公司 Light guide plate with leak protection photo structure
CN105739181A (en) * 2016-04-28 2016-07-06 武汉华星光电技术有限公司 Frame adhesive, frame adhesive manufacturing method and backlight module manufacturing method

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