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WO2016070453A1 - Appareil d'affichage à cristaux liquides et module rétroéclairage associé - Google Patents

Appareil d'affichage à cristaux liquides et module rétroéclairage associé Download PDF

Info

Publication number
WO2016070453A1
WO2016070453A1 PCT/CN2014/090997 CN2014090997W WO2016070453A1 WO 2016070453 A1 WO2016070453 A1 WO 2016070453A1 CN 2014090997 W CN2014090997 W CN 2014090997W WO 2016070453 A1 WO2016070453 A1 WO 2016070453A1
Authority
WO
WIPO (PCT)
Prior art keywords
support member
backlight module
back frame
disposed
notch
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.)
Ceased
Application number
PCT/CN2014/090997
Other languages
English (en)
Chinese (zh)
Inventor
唐国富
石秦珺
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.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen 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 Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Publication of WO2016070453A1 publication Critical patent/WO2016070453A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular to a liquid crystal display device with a frameless glue design and a backlight module thereof.
  • the liquid crystal display device generally includes a front frame 11, a display panel 12, and a backlight module as shown in FIG. 1.
  • the backlight module mainly includes a plastic frame 131, an optical film group 132, a back frame 133, a light guide plate, and a light source 134.
  • the plastic frame 131 and the back frame 133 cooperate with the front frame 11 for clamping and protecting the display panel 12.
  • the plastic frame 131 is generally used to support the display panel 12 and ensure the tightness of the overall structure of the backlight module.
  • the manufacturing of the plastic frame 131 not only requires the cost of the plastic frame material, but also requires the development cost of the mold and the corresponding assembly cost, resulting in a high manufacturing cost of the backlight module and the liquid crystal display device, and the plastic frame 131 is disposed on the display panel.
  • the periphery of 12 is not conducive to the narrow bezel design of the liquid crystal display device.
  • the technical problem to be solved by the embodiments of the present invention is to provide a liquid crystal display device and a backlight module thereof, which can reduce the manufacturing cost of the liquid crystal display device and the backlight module thereof, and facilitate the narrow border of the liquid crystal display device. design.
  • a technical solution adopted by the present invention is to provide a backlight module, including a back frame, a light source disposed on the back frame, and a support member, and the support member is disposed on the back frame for supporting the setting.
  • a display panel on the bearing surface thereof; wherein the back frame comprises a bottom plate and a side wall surrounding the periphery of the bottom plate, the support member is disposed on the side wall, the top surface of the support member is in contact with the bottom surface of the display panel, and the backlight module comprises a buffer The gasket and the buffer gasket are disposed on the bearing surface of the support member, and the support member and the back frame are integrally formed.
  • the side wall of the back frame is provided with a first notch, the support member is fixed to the bottom surface of the first notch, and the width of the support member is less than or equal to the width of the first notch.
  • the support member includes a horizontal portion and an inclined portion fixed to both ends of the horizontal portion.
  • the inclined portion is connected to the horizontal portion at an obtuse angle, and the horizontal portion is in contact with the bottom surface of the display panel and spaced apart from the bottom surface of the first notch.
  • the backlight module further includes an optical film set provided with a hanging ear portion, and the hanging ear portion includes an inverting portion extending from an edge of the main body portion of the optical film group toward the supporting member and an extending portion connected to the barb portion.
  • the extending portion is disposed between the horizontal portion and the bottom surface of the first notch, and the barb portion abuts against the inclined portion, and the inclined portion prevents the barb portion from moving toward the main body portion of the optical film group.
  • the optical film set is provided with a second notch, and the hanging ear is disposed in the second notch.
  • the depth of the second notch is less than or equal to the length of the hanging ear and equal to the width of the support.
  • a backlight module including a back frame, a light source disposed on the back frame, and a support member, and the support member is disposed on the back frame for supporting A display panel that is placed on its carrying surface.
  • the backlight module includes a buffer pad, and the buffer pad is disposed on the bearing surface of the support member.
  • the back frame includes a bottom plate and a side wall surrounding the periphery of the bottom plate, and the support member is disposed on the side wall, and the top surface of the support member is in contact with the bottom surface of the display panel.
  • the side wall of the back frame is provided with a first notch, the support member is fixed to the bottom surface of the first notch, and the width of the support member is less than or equal to the width of the first notch.
  • the support member includes a horizontal portion and an inclined portion fixed to both ends of the horizontal portion.
  • the inclined portion is connected to the horizontal portion at an obtuse angle, and the horizontal portion is in contact with the bottom surface of the display panel and spaced apart from the bottom surface of the first notch.
  • the backlight module further includes an optical film set provided with a hanging ear portion, and the hanging ear portion includes an inverting portion extending from an edge of the main body portion of the optical film group toward the supporting member and an extending portion connected to the barb portion.
  • the extending portion is disposed between the horizontal portion and the bottom surface of the first notch, and the barb portion abuts against the inclined portion, and the inclined portion prevents the barb portion from moving toward the main body portion of the optical film group.
  • the optical film set is provided with a second notch, and the hanging ear is disposed in the second notch.
  • the depth of the second notch is less than or equal to the length of the hanging ear and equal to the width of the support.
  • the support member and the back frame are integrally formed.
  • a liquid crystal display device including a front frame, a display panel and the backlight module, wherein the front frame and the back frame are fixed, and the display panel is pressed against the support.
  • the bearing surface of the piece is to provide a liquid crystal display device including a front frame, a display panel and the backlight module, wherein the front frame and the back frame are fixed, and the display panel is pressed against the support. The bearing surface of the piece.
  • the backlight module includes a buffer pad, and the buffer pad is disposed on the bearing surface of the support member.
  • the back frame includes a bottom plate and a side wall surrounding the periphery of the bottom plate, and the support member is disposed on the side wall, and the top surface of the support member is in contact with the bottom surface of the display panel.
  • the front frame includes an upper frame and a side frame.
  • the side frame is fixed to the side wall of the back frame.
  • the upper frame presses the display panel on the bearing surface of the support member, and the width of the upper frame is less than or equal to the width of the support member.
  • the beneficial effects of the embodiments of the present invention are: the embodiment of the present invention replaces the plastic frame in the prior art by the support member to support the display panel, and the backlight module can be reduced due to the non-plastic frame design.
  • the manufacturing cost is good, and the narrow bezel design of the liquid crystal display device using the backlight module is facilitated.
  • FIG. 1 is a schematic exploded view showing the structure of a liquid crystal display device according to an embodiment of the prior art
  • FIG. 2 is a schematic exploded view showing the structure of a liquid crystal display device according to a preferred embodiment of the present invention
  • FIG. 3 is a partial side elevational view showing the overall structure of a backlight module in accordance with a preferred embodiment of the present invention
  • Figure 4 is a side view showing the structure of the support member of the backlight module shown in Figure 3;
  • Figure 5 is a partial top plan view showing the structure of an optical film set of a preferred embodiment of the present invention.
  • the liquid crystal display device 20 of the present embodiment includes a front frame 21 , a (liquid crystal) display panel 22 , and a backlight module 23 , wherein the front frame 21 is used to press the display panel 22 on the backlight module 23 . , thereby positioning and protecting the display panel 22.
  • the backlight module 23 includes a back frame 231, a light source 232 disposed on the back frame 231, and a support member 233.
  • the support member 233 is disposed on the back frame 231 for supporting the bearing surface. Display panel 22.
  • the backlight module 23 further includes other structures such as a light guide plate.
  • the support frame 233 is used to replace the plastic frame of the prior art (for example, the plastic frame 131 shown in FIG. 1 ) for supporting the display panel 22 . Since the frameless design is adopted, the embodiment can reduce the backlight compared to the prior art. The manufacturing cost of the module 23.
  • the support member 233 is disposed on the bottom surface of the display panel 22 instead of the periphery, which saves the width occupied by the frame glue in the prior art in the prior art. Therefore, the embodiment also facilitates the narrow use of the liquid crystal display device 20 using the backlight module 23. Border design.
  • the back frame 231 includes a bottom plate 41 and a side wall 42 surrounding the bottom surface of the bottom plate 41 .
  • the support member 233 is disposed on the side wall 42 , and the top surface of the support member 233 is in contact with the bottom surface of the display panel 22 .
  • the side wall 42 of the back frame 231 is provided with a first notch 43.
  • the bottom surface of the first notch 43 is perpendicular to the plane in which the side wall 42 is located, and the support member 233 is fixed to the bottom surface of the first notch 43, and preferably the width of the support member 233 Less than or equal to the width of the first notch 43, wherein the width of the first notch 43 corresponds to a direction running perpendicular to the structure of the support 233, rather than along the structure of the side wall 42 of the back frame 231.
  • the support member 233 has a symmetrical structure, and includes a horizontal portion 331 disposed in a strip shape and an inclined portion 332 fixed to both ends of the horizontal portion 331.
  • the inclined portion 332 is connected at an obtuse angle to the horizontal portion 331, and the top surface of the horizontal portion 331 and the display panel The bottom surface of 22 is in contact.
  • the horizontal portion 331 is spaced apart from the bottom surface of the first notch 43 to realize positioning of the optical film group 24 of the liquid crystal display device 20.
  • the optical film group 24 refers to one or more optical films capable of making the light emitted from the light-emitting surface of the light guide plate of the backlight module 23 uniform and improving the display brightness. Specifically, please refer to FIG. 5,
  • the optical film set 24 includes at least one ear strap 241 that includes an edge from the optical film set 24, that is, an edge of the body portion of the optical film set 24, and an undercut portion 242 that extends toward the support member 233.
  • the extension portion 243 connected to the hook portion 242, preferably the barb portion 242 and the extension portion 243 are perpendicular, such that the ear strap portion 241 is T-shaped.
  • the extending portion 243 is disposed in a spacing region between the horizontal portion 331 of the support member 233 and the bottom surface of the first cutout 43 , and the side where the hook portion 242 is connected to the extending portion 243 abuts against the inclined portion 332 of the support member 233 .
  • the inclined portion 332 of the support member 233 prevents the barb portion 242 from moving toward the main body portion of the optical film group 24, thereby realizing the positioning of the entire optical film group 24, preventing the optical film group 24 from being generated during assembly and transportation. dislocation.
  • the optical film group 24 is preferably provided.
  • the second notch 244 is configured to receive the support member 233 , and the hanging ear portion 241 is disposed in the second notch 244 , that is, the depth of the second notch 244 is less than or equal to the length of the ear strap portion 241 and is equal to the width of the support member 233 .
  • the side frame of the front frame 21 and the side wall of the back frame 231 are fixed by screw locking, and the upper frame of the front frame 21 presses the display panel 22 against the support of the support member 233. On the surface, the display panel 22 is firmly pressed on the backlight module 23.
  • the width of the upper frame is less than or equal to the width of the support member 233, that is, less than or equal to the depth of the second notch 244.
  • the backlight module 23 and the liquid crystal display device 20 are only one embodiment of the present invention.
  • Other embodiments may have other designs.
  • the support member 233 and the back frame 231 may be integrally formed or not.
  • the embodiment of the present invention may provide a cushion on the bearing surface of the horizontal portion 331 of the support member 233.
  • the piece has a certain elastic cushioning on the bearing surface.
  • the primary object of the present invention is to replace the frame of the prior art by the support member for supporting the display panel, thereby reducing the manufacturing cost of the backlight module, and facilitating the narrow bezel design of the liquid crystal display device using the backlight module.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un module rétroéclairage (23) qui comprend un cadre arrière (231), une source lumineuse (232) aménagée sur le cadre arrière (231) et une partie de support (233), la partie de support (233) étant aménagée sur le cadre arrière (231) et servant à supporter un panneau d'affichage (22) placé sur une surface porteuse de la partie de support (233). La présente invention se réfère également à un appareil d'affichage à cristaux liquides. Grâce à une conception dépourvue de cadre en caoutchouc, on peut réduire les coûts de fabrication pour la production de l'appareil d'affichage (20) à cristaux liquides et du module rétroéclairage (23) associé, et obtenir une conception à cadre étroit de l'appareil d'affichage (20) à cristaux liquides.
PCT/CN2014/090997 2014-11-05 2014-11-13 Appareil d'affichage à cristaux liquides et module rétroéclairage associé Ceased WO2016070453A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410620929.4A CN104456294B (zh) 2014-11-05 2014-11-05 液晶显示装置及其背光模组
CN201410620929.4 2014-11-05

Publications (1)

Publication Number Publication Date
WO2016070453A1 true WO2016070453A1 (fr) 2016-05-12

Family

ID=52902788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/090997 Ceased WO2016070453A1 (fr) 2014-11-05 2014-11-13 Appareil d'affichage à cristaux liquides et module rétroéclairage associé

Country Status (2)

Country Link
CN (1) CN104456294B (fr)
WO (1) WO2016070453A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104950498B (zh) * 2015-06-29 2018-06-12 青岛海信电器股份有限公司 一种显示装置和用于显示装置的安装固定支架
CN105223723B (zh) * 2015-11-04 2019-09-17 合肥京东方显示光源有限公司 背光源胶铁结构及其制备方法、背光源、显示装置
CN112987361B (zh) * 2019-12-16 2023-02-24 京东方科技集团股份有限公司 显示模组和显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001282112A (ja) * 2000-03-29 2001-10-12 Sharp Corp 表示装置
CN102096218A (zh) * 2010-12-02 2011-06-15 深圳市华星光电技术有限公司 液晶显示模块及其一体成型背板
CN103162161A (zh) * 2011-12-08 2013-06-19 上海中航光电子有限公司 背光模组以及液晶显示装置
CN103295477A (zh) * 2012-03-05 2013-09-11 群康科技(深圳)有限公司 简易模块显示器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102621743B (zh) * 2012-04-13 2015-04-22 深圳市华星光电技术有限公司 一种液晶显示模组及液晶显示装置
US20130286321A1 (en) * 2012-04-28 2013-10-31 Yicheng Kuo LCD Device and Backlight Module
KR102013834B1 (ko) * 2012-08-10 2019-08-26 삼성디스플레이 주식회사 백라이트 장치 및 이를 포함하는 표시 장치
CN203731310U (zh) * 2014-01-26 2014-07-23 深圳Tcl新技术有限公司 定位装置、背光模组及液晶显示器
CN203823673U (zh) * 2014-03-24 2014-09-10 荣晋精密科技股份有限公司 无胶框框架式背板结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001282112A (ja) * 2000-03-29 2001-10-12 Sharp Corp 表示装置
CN102096218A (zh) * 2010-12-02 2011-06-15 深圳市华星光电技术有限公司 液晶显示模块及其一体成型背板
CN103162161A (zh) * 2011-12-08 2013-06-19 上海中航光电子有限公司 背光模组以及液晶显示装置
CN103295477A (zh) * 2012-03-05 2013-09-11 群康科技(深圳)有限公司 简易模块显示器

Also Published As

Publication number Publication date
CN104456294A (zh) 2015-03-25
CN104456294B (zh) 2017-09-01

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