WO2014019249A1 - 液晶显示装置及其背光模组和背板组件 - Google Patents

液晶显示装置及其背光模组和背板组件 Download PDF

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Publication number
WO2014019249A1
WO2014019249A1 PCT/CN2012/079880 CN2012079880W WO2014019249A1 WO 2014019249 A1 WO2014019249 A1 WO 2014019249A1 CN 2012079880 W CN2012079880 W CN 2012079880W WO 2014019249 A1 WO2014019249 A1 WO 2014019249A1
Authority
WO
WIPO (PCT)
Prior art keywords
guiding portion
guiding
movable member
carrying
guide plate
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/CN2012/079880
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English (en)
French (fr)
Inventor
萧宇均
陈伟丰
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
Priority to US13/641,113 priority Critical patent/US20140036196A1/en
Publication of WO2014019249A1 publication Critical patent/WO2014019249A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/54—Arrangements for reducing warping-twist

Definitions

  • the present invention relates to the field of liquid crystals, and in particular to a backlight module and a backplane assembly thereof, and to a liquid crystal display device using the backlight module.
  • the support member may be warped to drive the back plate assembly to press the light guide plate, causing the light guide plate to warp, thereby affecting the use effect of the backlight module.
  • the technical problem to be solved by the present invention is to provide a liquid crystal display device, a backlight module thereof and a backplane assembly, which can effectively solve the problem of warpage of the light guide plate caused by insufficient rigidity of the back plate assembly in the prior art.
  • a liquid crystal display device including a liquid crystal panel, a backlight module, and a backplane assembly for the backlight module, and the backlight module includes a light source.
  • the backboard assembly includes a movable member and a cross member. The movable member is provided with a carrying portion for carrying the light guiding plate, the vertical portion for arranging the light source, the carrying portion is provided with the first guiding portion, and the horizontal frame member is provided with the second guiding portion.
  • the first support is provided on the vertical portion
  • the second supporting portion is disposed on the side of the movable member, and the liquid crystal panel is fixed to the first supporting portion and the second supporting portion.
  • the first guiding portion is a bump and the second guiding portion is a guiding groove, or the first guiding portion is a guiding groove and the second guiding portion is a convex block, or the first guiding portion and the second guiding portion are guiding grooves
  • the first guiding portion and the second guiding portion are respectively penetrated by rivets or sliders.
  • the first guiding portion and the second guiding portion are both plural and are matched one by one.
  • the bump is a rivet fixedly disposed on the carrying portion or integrally formed with the carrying portion.
  • the cross member comprises a first bracket and a second bracket which are spaced apart, the first bracket and the second bracket are connected by a fixing member, and the movable member comprises a first movable member and a second movable member and is respectively disposed on the horizontal
  • the two ends of the frame member are configured such that the first movable member and the second movable member slide along the transverse frame member toward or away from each other by the cooperation of the first guiding portion and the second guiding portion.
  • the movable member is made of a heat dissipating material, and the movable member is further provided with a side portion perpendicular to the vertical portion, and the side portion and the vertical portion cooperate to form a positioning groove to fix the light guide plate.
  • the back panel assembly includes a mover and a cross member.
  • the movable member is provided with a carrying portion for carrying the light guide plate of the backlight module, the vertical portion is for setting the light source of the backlight module, and the first guiding portion is disposed on the carrying portion, the horizontal frame member A second guide is provided on the upper portion.
  • the relative sliding connection of the movable member and the cross member is achieved by the cooperation of the first guiding portion and the second guiding portion for realizing the translational sliding of the light source away from or close to the transverse member.
  • the first guiding portion is a bump
  • the second guiding portion is a guiding groove
  • the guiding groove is matched with the protruding block to allow the protruding block to slide in the guiding groove.
  • first guiding portion and the second guiding portion are both pluralityed and matched one by one, and the protruding block is a rivet fixedly disposed on the carrying portion or integrally formed with the carrying portion.
  • the first guiding portion is a guiding groove
  • the second guiding portion is a convex block
  • the guiding groove is matched with the convex block to allow the convex piece to slide in the guiding groove.
  • first guiding portion and the second guiding portion are both pluralityed and matched one by one, and the protruding block is a rivet fixedly disposed on the carrying portion or integrally formed with the carrying portion.
  • first guiding portion and the second guiding portion are both guiding grooves, and the first guiding portion and the second guiding portion are respectively penetrated by the rivets or the sliders.
  • the first guiding portion and the second guiding portion are both plural and are matched one by one.
  • the cross member comprises a first bracket and a second bracket which are spaced apart, the first bracket and the second bracket are connected by a fixing member, and the movable member comprises a first movable member and a second movable member and is respectively disposed on the horizontal
  • the two ends of the frame member are configured such that the first movable member and the second movable member slide along the transverse frame member toward or away from each other by the cooperation of the first guiding portion and the second guiding portion.
  • the movable member is made of a heat dissipating material, and the movable member is further provided with a side portion perpendicular to the vertical portion, and the side portion and the vertical portion cooperate to form a positioning groove to fix the light guide plate.
  • a backlight module which includes a light source, a light guide plate and a back plate assembly
  • the back plate assembly includes a movable member and a cross frame member.
  • the movable member is provided with a carrying portion for carrying the light guiding plate, the vertical portion for arranging the light source, the carrying portion is provided with the first guiding portion, and the horizontal frame member is provided with the second guiding portion.
  • the relative sliding connection of the movable member and the cross member is achieved by the cooperation of the first guiding portion and the second guiding portion for realizing the translational sliding of the light source away from or close to the transverse member.
  • the light source is disposed adjacent to a side of the light guide plate near the vertical portion
  • the light guide plate is disposed on the movable member.
  • the first guiding portion is a bump and the second guiding portion is a guiding groove, or the first guiding portion is a guiding groove and the second guiding portion is a convex block, or the first guiding portion and the second guiding portion are guiding grooves And the first guiding portion and the second guiding portion are respectively penetrated by rivets or sliders.
  • Embodiments of the present invention provide a liquid crystal display device, a backlight module thereof, and a backplane assembly.
  • the first guiding portion is disposed on the movable member of the backboard assembly, and the second guiding portion is disposed on the horizontal frame member of the backing plate assembly.
  • the light guide plate is placed on the movable member.
  • the movable member is driven to press the light guide plate, and the light guide plate applies a reaction force to push the movable member, and the movable member is separated from the second guide portion by the cooperation of the first guide portion and the second guide portion.
  • the translational sliding of the cross member prevents the warpage of the light guide.
  • 1a is a partial cross-sectional view showing a structure of a backboard assembly according to an embodiment of the present invention
  • Figure 1b is a schematic view showing the manner of fitting the backing plate assembly of Figure 1a after the cross member is warped;
  • Figure 2a is a cross-sectional view showing a portion of a back plate assembly of another embodiment of the present invention.
  • FIG. 2b is a schematic view showing the manner of cooperation of the backboard assembly shown in FIG. 2a after the cross member is warped;
  • Figure 3a is a cross-sectional view showing a portion of a back plate assembly according to still another embodiment of the present invention.
  • FIG. 3b is a schematic view showing the manner of fitting the backing plate assembly shown in FIG. 3a after the cross member is warped;
  • FIG. 4 is a schematic structural view of a backplane assembly according to an embodiment of the present invention.
  • Figure 5 is an enlarged schematic view of a portion V of the backing plate assembly of Figure 4.
  • Figure 6 is a front elevational view of the backing plate assembly of Figure 4.
  • FIG. 1a is a partial structural view of a backplane assembly according to an embodiment of the present invention
  • FIG. 1b is a schematic view showing the manner of cooperation of the backplane assembly shown in FIG. 1a after the cross member is warped.
  • the backboard assembly includes, but is not limited to, the movable member 11 and the cross member 12.
  • the movable member 11 is made of a heat dissipating material to enhance the heat dissipation effect of the backlight module.
  • the specific material of the movable member 11 can be determined by the heat dissipation effect of the backlight module and the structural design of the back panel assembly itself. This is not limited here.
  • the movable member 11 includes a carrying portion 111, a vertical portion 112, a light source 113, and one or more first guiding portions 114.
  • the carrying portion 111 is configured to carry an optical component such as a light guide plate of the backlight module, and the width thereof may depend on the rigidity of the light guide plate. If the light guide plate has poor rigidity, the bearing portion 111 needs a wider width to strengthen the support for the light guide plate. Effect; conversely, if the light guide plate is more rigid, the load-bearing portion 111 can be provided with a narrower width to save material of the backboard assembly.
  • the vertical portion 112 can be disposed perpendicular to the carrying portion 111, and the light source 113 is disposed on the inner side wall of the vertical portion 112.
  • the light source 113 can be one or more, and the specific number of the visible backlight module itself is designed, which is not limited herein.
  • the first guiding portion 114 may be provided as a guide groove.
  • FIG. 1a is a schematic view showing the structure of one end of the movable member 11, and the structure of the other end is substantially the same as that shown in FIG. 1a, and details are not described herein.
  • the cross member 12 is provided with one or more second guiding portions 121.
  • the second guiding portion 121 can be disposed as a guiding slot, and the opening size of the second guiding portion 121 can be different from the opening size of the first guiding portion 114.
  • the backboard assembly is further provided with a rivet 130 riveted to the cross member 12.
  • the diameter of the rivet rod in the rivet 130 matches the opening size of the first guiding portion 114 and the second guiding portion 121 to allow the rivet 130 to be first.
  • the guide portion 114 and the second guide portion 121 are free to slide, thereby achieving a relative sliding connection of the movable member 11 and the cross member 12.
  • the first guiding portion 114 may also be provided as a bump. Further, the first guiding portion 114 may be a rivet disposed on the movable member 11 or may be integrally formed with the movable member 11 .
  • the two guiding portions 121 can be arranged as guide grooves. The size of the guide opening of the second guiding portion 121 matches the width of the protrusion of the first guiding portion 114.
  • the first guiding portion 114 penetrates the second guiding portion 121 through the cooperation of the first guiding portion 114 and the second guiding portion 121.
  • the relative sliding connection of the moving member 11 and the cross member 12 is realized, thereby realizing the translational sliding of the light source 113 away from or near the cross member 12.
  • the first guiding portion 114 may be disposed as a guiding slot
  • the second guiding portion 121 may be disposed as a protrusion
  • the second guiding portion 121 may also be a rivet fixedly disposed on the cross member 12, or may be horizontally
  • the frame member 12 is integrally formed.
  • the opening size of the first guiding portion 114 matches the width of the second guiding portion 121, and the second guiding portion 121 penetrates the first guiding portion 114, and the moving member 11 is realized by the cooperation of the first guiding portion 114 and the second guiding portion 121.
  • the relative sliding connection with the cross member 12 further effects translational sliding of the light source away from or near the cross member 12.
  • FIG. 1a and 1b illustrate the principle of avoiding the warpage of the light guide plate in the design of the backplane assembly according to an embodiment of the present invention.
  • the specific warping mode is such that the intermediate portion of the cross member 12 is recessed away from the movable member 11, and the end of the cross member 12 near the movable member 11 is bent toward the intermediate portion of the cross member 12.
  • the warpage of the cross member 12 causes the movable member 11 to undergo the same type of warpage, and the light source 113 disposed on the vertical portion 112 presses the light guide plate to apply a force to the light guide plate, and the light guide plate also acts.
  • Light source 113 applies a reaction force.
  • the reaction force pushes the movable member 11 to move away from the cross member 12, the light source 113 starts to move away from the cross member 12 until the light source 113 stops pressing the light guide plate, and the slider 30 passes from the first guiding portion 114 and the second guiding portion 121.
  • One end near the vertical portion 112 is moved to an end away from the vertical portion 112.
  • the first guiding portion 114 is disposed on the movable member 11 of the backboard assembly
  • the second guiding portion 121 is disposed on the horizontal member 12 of the backing plate assembly
  • the light guiding plate is placed on the movable member 11.
  • FIG. 2a is a partial structural cross-sectional view of a backplane assembly according to another embodiment of the present invention
  • FIG. 2b is a schematic view showing the manner of cooperation of the backplane assembly shown in FIG. 2a after the cross member is warped. .
  • the backboard assembly includes, but is not limited to, the movable member 21 and the cross member 22.
  • the movable member 21 can be made of a heat dissipating material to enhance the heat dissipation effect of the backlight module.
  • the specific material of the movable member 21 can be seen by the heat dissipation effect of the backlight module and the structural design of the back panel assembly itself. Therefore, I will not repeat them here.
  • the movable member 21 includes a bearing portion 211, a vertical portion 212, a light source 213, a first guiding portion 214, and the like, and the horizontal member 22 is provided with a second guiding portion 221, wherein the first guiding portion 214 And the second guiding portion 221 may be any combination of the bumps or the guiding grooves described in the previous embodiments, and details are not described herein.
  • the connection method used in the second embodiment is a connecting member 230 such as a bump, a rivet or a slider, and the connecting member 230 is a dumbbell with a cross section of "work" shape.
  • the cross-sectional area of the two ends of the connecting member 230 parallel to the direction of the carrying portion 211 is larger than the cross-sectional area of the middle portion parallel to the direction of the carrying portion 111, the size of the intermediate portion of the connecting member 230 and the first guiding portion 214 and the second portion
  • the opening of the guide portion 221 is sized to allow the connector 230 to freely slide within the first guide portion 214 and the second guide portion 221.
  • the inner side surfaces of the two end portions of the connecting member 230 respectively abut the front surface of the carrying portion 211 and the bottom surface of the cross member 22, thereby fixing the cross member 22 and the movable member 21 in the direction of the vertical carrying portion 211 so as to be in the vertical carrying portion.
  • the direction of 211 does not move up and down.
  • the first guiding portion 214 is disposed on the movable member 21 of the backboard assembly
  • the second guiding portion 221 is disposed on the horizontal member 22 of the backing plate assembly
  • the light guiding plate is placed on the movable member 21.
  • FIG. 3a is a partial structural cross-sectional view of a backplane assembly according to another embodiment of the present invention
  • FIG. 3b is a schematic view showing the manner of cooperation of the backplane assembly shown in FIG. 3a after warping of the cross member. .
  • the backboard assembly includes, but is not limited to, a movable member 31 and a cross member 32.
  • the movable member 31 is made of a heat dissipating material to enhance the heat dissipation effect of the backlight module.
  • the specific material of the movable member 31 can be determined by the heat dissipation effect of the backlight module and the structural design of the back panel assembly itself. This is not limited here.
  • the movable member 31 includes a carrying portion 311, a vertical portion 312, a light source 313, a first guiding portion 314, and the like, and the horizontal member 32 is provided with a second guiding portion 321 , wherein the first guiding portion 314 And the second guiding portion 321 can be any combination of the bumps or the guiding grooves described in the previous embodiments, and details are not described herein.
  • the difference between the third embodiment and the second embodiment is that in the embodiment, the upper portion of the connecting member 330 is a rectangular plate, and the lower portion of the rectangular plate is connected with two cylindrical bosses.
  • the intermediate portion of the cylindrical boss has a diameter and a first guiding portion 314.
  • the opening of the second guiding portion 321 is sized to allow the connecting member 330 to freely slide within the first guiding portion 314 and the second guiding portion 321 .
  • the diameter of the bottom of the cylindrical boss is slightly larger than the opening of the first guide portion 314 and the second guide portion 321 .
  • the specific shape of the connecting member 330 and its cooperation with the cross member 32 and the movable member 31 may be determined according to the design of the backlight module itself, and will not be described herein.
  • the structure, the mating relationship, and the principle of avoiding the warpage of the light guide plate of the other components of the backboard assembly have been described in detail in the foregoing embodiments, and thus will not be described herein.
  • the first guiding portion 314 is disposed on the movable member 31 of the backboard assembly
  • the second guiding portion 321 is disposed on the horizontal member 32 of the backing plate assembly
  • the light guiding plate is placed on the movable member 31.
  • FIG. 4 is a schematic structural view of a backplane assembly according to an embodiment of the present invention
  • FIG. 5 is an enlarged schematic view of a portion V of the backplane assembly shown in FIG. 4
  • FIG. 6 is a backplane assembly of FIG. Frontal view.
  • the backboard assembly includes a first movable member 411, a second movable member 412, a cross member 42, a connecting member 430, and a fixing member 440.
  • the first movable member 411 and the second movable member 412 are respectively disposed at two ends of the cross member 42.
  • the first movable member 411 includes a first carrying portion 4111, a first vertical portion 4112, a light source 4113, and a first guide.
  • the second movable member 412 includes a second carrying portion 4121, a second vertical portion 4122, and a second guiding portion.
  • first movable member 411 and the second movable member 412 further include a first side portion 4115 and a second side portion (not labeled) provided perpendicular to the first vertical portion 4112 and the second vertical portion 4122.
  • the first side portion 4115 and the second side portion are disposed along the edges of the first movable member 411 and the second movable member 412, respectively.
  • the cross member 42 further includes a first bracket 421 and a second bracket 422 which are spaced apart, and the first bracket 421 and the second bracket 422 are connected by a fixing member 440.
  • the cross member 42 cooperates with the movable member. Specifically, the first movable portion 411 and the second movable member 412 are brought closer to each other along the cross member 42 by the cooperation of the first guiding portion and the second guiding portion. The sliding mode is far away, and the specific cooperation mode has been described in detail in the foregoing, and will not be described here.
  • the fixing member 440 and the cross member 42 can be fixed by welding, integral molding or other fixed connection manner.
  • the number of the fixing members 440 can be two or more, or one, and the specific number and the cross member 42 can be used.
  • the fixing manner may be determined by the design of the backboard assembly itself, and is not limited herein.
  • the connecting member 430 may be any combination of the foregoing bumps, rivets or sliders, and will not be described herein
  • the bottom surface of the light guide plate is placed on the first carrying portion 4111 and the second carrying portion 4121, and one of the side surfaces of the light guide plate is pressed against the first vertical portion 4112.
  • One side of the frame member 42 and the other side surface of the light guide plate adjacent to the side surface of the light guide plate abut against the inner side surface of the first side portion 4115.
  • the embodiment of the invention further provides a backlight module, which comprises an optical component and a backplane assembly as described above.
  • the optical component is a laminated light guide plate and an optical film.
  • the optical film is placed above the light guide plate, and the light guide plate functions to support the optical film.
  • the backboard assembly includes a movable member and a cross member, and the carrying portion on the movable member is for supporting the optical member, and the vertical portion on the movable member cooperates with the side portion to fix the optical member. Since the specific structure of the backboard assembly has been described in detail in the foregoing embodiments, it will not be described herein. The manner in which the backing plate assembly and the optical member are combined has also been described above, and thus will not be repeatedly described herein.
  • the embodiment of the invention further provides a liquid crystal display device comprising a liquid crystal panel and a backlight module of the previous embodiment.
  • the back plate assembly of the backlight module includes a movable member and a horizontal frame member, and the bearing portion on the movable member is used for supporting the optical member, and the vertical portion on the movable member cooperates with the side portion to fix the optical member.
  • the movable member is provided with a vertical portion and a side portion, the vertical portion is provided with a first supporting portion, and the side portion is provided with a second supporting portion, and the liquid crystal panel is fixed to the first supporting portion and the second supporting portion. Since the specific structure of the backplane component and the backlight module has been described in detail in the foregoing, it will not be described herein.
  • the liquid crystal display device is equipped with the backlight module or the back plate assembly described in the foregoing, the liquid crystal display device can avoid the warpage of the light guide plate and enhance the use effect of the backlight module.

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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)

Description

液晶显示装置及其背光模组和背板组件
【技术领域】
本发明涉及液晶领域，具体是涉及一种背光模组及其背板组件，还涉及一种采用该背光模组的液晶显示装置。
【背景技术】
现有技术中，大部分背光模组均使用镂空设计的支撑件来支撑导光板，再通过其他部件实现导光板与背板组件的固定，再运用到液晶显示装置中。
但是，在使用过程中，由于刚度不足，支撑件会发生翘曲从而带动背板组件挤压导光板，使导光板发生翘曲，从而影响背光模组的使用效果。
【发明内容】
本发明主要解决的技术问题是提供一种液晶显示装置及其背光模组和背板组件，能够能有效地解决现有技术中由于背板组件刚度不足导致的导光板翘曲问题。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种液晶显示装置，液晶显示装置包括液晶面板、背光模组以及用于背光模组的背板组件，背光模组包括光源、导光板。背板组件包括可动件和横架件。可动件上设置有承载部及竖直部，承载部用于承载导光板，竖直部用于设置光源，承载部上设置有第一导向部；横架件上设置有第二导向部，通过第一导向部和第二导向部的配合以实现可动件与横架件的相对滑动连接，用于实现光源作远离或靠近横架件的平移滑动；竖直部上设置有第一支撑部，可动件的侧部上设置有第二支撑部，液晶面板固定于第一支撑部和第二支撑部上。其中，第一导向部为凸块且第二导向部为导槽，或者第一导向部为导槽且第二导向部为凸块，又或者第一导向部和第二导向部均为导槽且通过铆钉或滑块分别贯穿第一导向部和第二导向部。
其中，第一导向部与第二导向部均为多个，且一一对应配合。
其中，凸块为固定设置于承载部上的铆钉，或与承载部一体成型。
其中，横架件包括间隔设置的第一支架和第二支架，第一支架和第二支架通过固定件相连接，可动件包括第一可动件和第二可动件并分别设置在横架件的两端，通过第一导向部和第二导向部的配合使得第一可动件和第二可动件沿横架件作相靠近或相远离的滑动。
其中，可动件由散热材料制成，可动件还设置有与竖直部垂直的侧部，侧部与竖直部配合形成定位槽以固定导光板。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种用于背光模组的背板组件。该可背板组件包括动件和横架件。可动件上设置有承载部及竖直部，承载部用于承载背光模组的导光板，竖直部用于设置背光模组的光源，承载部上设置有第一导向部，横架件上设置有第二导向部。通过第一导向部和第二导向部的配合以实现可动件与横架件的相对滑动连接，用于实现光源作远离或靠近横架件的平移滑动。
其中，第一导向部为凸块，第二导向部为导槽，导槽与凸块相匹配以允许凸块在导槽中滑动。
其中，第一导向部与第二导向部均为多个，且一一对应配合，凸块为固定设置于承载部上的铆钉，或与承载部一体成型。
其中，第一导向部为导槽，第二导向部为凸块，导槽与凸块相匹配以允许凸块在导槽中滑动。
其中，第一导向部与第二导向部均为多个，且一一对应配合，凸块为固定设置于承载部上的铆钉，或与承载部一体成型。
其中，第一导向部和第二导向部均为导槽，通过铆钉或滑块分别贯穿第一导向部和第二导向部。
其中，第一导向部与第二导向部均为多个，且一一对应配合。
其中，横架件包括间隔设置的第一支架和第二支架，第一支架和第二支架通过固定件相连接，可动件包括第一可动件和第二可动件并分别设置在横架件的两端，通过第一导向部和第二导向部的配合使得第一可动件和第二可动件沿横架件作相靠近或相远离的滑动。
其中，可动件由散热材料制成，可动件还设置有与竖直部垂直的侧部，侧部与竖直部配合形成定位槽以固定导光板。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种背光模组，背光模组包括光源、导光板以及背板组件，背板组件包括可动件和横架件。可动件上设置有承载部及竖直部，承载部用于承载导光板，竖直部用于设置光源，承载部上设置有第一导向部；横架件上设置有第二导向部，通过第一导向部和第二导向部的配合以实现可动件与横架件的相对滑动连接，用于实现光源作远离或靠近横架件的平移滑动。其中，光源邻近导光板靠近竖直部的侧面设置，导光板设置在可动件上。
其中，第一导向部为凸块且第二导向部为导槽，或者第一导向部为导槽且第二导向部为凸块，又或者第一导向部和第二导向部均为导槽且通过铆钉或滑块分别贯穿第一导向部和第二导向部。
本发明实施例提供了一种液晶显示装置及其背光模组和背板组件，通过在背板组件的可动件上设置第一导向部，在背板组件的横架件上设置第二导向部，导光板放置于可动件上。当横架件由于刚度不足发生翘曲时，会带动可动件挤压导光板，导光板施加反作用力推动可动件，可动件通过第一导向部与第二导向部的配合，作远离横架件的平移滑动，从而避免了导光板的翘曲。
【附图说明】
图1a是本发明一实施例背板组件的部分结构剖视图；
图1b是图1a所示背板组件在横架件翘曲后的配合方式示意图；
图2a是本发明另一实施例背板组件的部分结构剖视图；
图2b是图2a所示背板组件在横架件翘曲后的配合方式示意图；
图3a是本发明又一实施例背板组件的部分结构剖视图；
图3b是图3a所示背板组件在横架件翘曲后的配合方式示意图；
图4是本发明一实施例背板组件的结构示意图；
图5是图4所示背板组件的Ⅴ部分放大示意图；以及
图6是图4所示背板组件的正面视图。
【具体实施方式】
下面结合附图和实施例，对本发明作进一步的详细描述。以下实施例仅用于说明本发明，但不应用来限制本发明的范围。
实施例一，请参阅图1a和图1b，图1a是本发明一实施例背板组件的部分结构示意图，图1b是图1a所示背板组件在横架件翘曲后的配合方式示意图。
本实施例中，背板组件包括但不限于可动件11和横架件12。
优选地，可动件11由散热材料制成，以增强背光模组的散热效果，可动件11的具体材料可视背光模组需要达到的散热效果以及背板组件自身的结构设计而定，在此不作限定。
具体而言，可动件11包括承载部111、竖直部112、光源113以及一个或多个第一导向部114。承载部111用于承载背光模组的导光板等光学部材，其宽度可视导光板自身刚度而定，如果导光板刚度较差，则承载部111需要较宽的宽度以加强对于导光板的支撑效果；相反，如果导光板刚度较好，则承载部111可以设置较窄的宽度，以节省背板组件的材料。竖直部112可以垂直于承载部111设置，光源113设置在竖直部112内侧壁上，光源113可以为一个或多个，具体个数可视背光模组自身设计而定，在此不作限定。第一导向部114可以设置为导槽。图1a只是给出了可动件11其中一端的结构示意图，而其他端的结构与图1a所示的结构基本相同，在此不作赘述。
对应地，横架件12上设置有一个或多个第二导向部121，第二导向部121可以设置为导槽，且第二导向部121的开口大小可以与第一导向部114的开口大小相匹配。背板组件还设置有铆接在横架件12上的铆钉130，铆钉130中铆钉杆的直径大小与第一导向部114及第二导向部121的开口大小相匹配，以允许铆钉130在第一导向部114和第二导向部121内自由滑动，从而实现可动件11与横架件12的相对滑动连接。
当然，本实施例中第一导向部114也可以设置成凸块，进一步而言，第一导向部114可以是设置于可动件11的铆钉，也可以与可动件11一体成型，而第二导向部121则可以设置成导槽。第二导向部121的导槽开口大小与第一导向部114的凸块宽度相匹配，第一导向部114贯穿第二导向部121，通过第一导向部114和第二导向部121的配合以实现移动件11与横架件12的相对滑动连接，进而实现光源113作远离或靠近横架件12的平移滑动。
本实施例中还可以将第一导向部114设置为导槽，第二导向部121设置为凸块，第二导向部121也可以是固定设置于横架件12上的铆钉，也可以与横架件12一体成型。第一导向部114的开口大小与第二导向部121的宽度相匹配，第二导向部121贯穿第一导向部114，通过第一导向部114和第二导向部121的配合以实现移动件11与横架件12的相对滑动连接，进而实现光源作远离或靠近横架件12的平移滑动。
下面结合图1a和图1b来说明本发明一实施例背板组件的设计避免导光板翘曲的原理，在背光模组的使用过程中，由于横架件12自身的刚度不足，会由于重力原因发生翘曲，具体的翘曲方式为横架件12的中间部分向远离可动件11的方向凹陷，横架件12靠近可动件11的一端向横架件12的中间部分弯曲。横架件12的翘曲会带动可动件11发生同样类型的翘曲，设置在竖直部112上的光源113会挤压导光板，给导光板施加一个作用力，而导光板也会对光源113施加一个反作用力。该反作用力推动可动件11向远离横架件12的方向移动，光源113开始远离横架件12直至光源113停止挤压导光板，滑块30从第一导向部114和第二导向部121靠近竖直部112的一端移动到远离竖直部112的一端。
本实施例通过在背板组件的可动件11上设置第一导向部114，在背板组件的横架件12上设置第二导向部121，导光板放置于可动件11上。当横架件12由于刚度不足发生翘曲时，会带动可动件挤压导光板，导光板施加反作用力推动可动件11，可动件11通过第一导向部114与第二导向部121的配合，作远离横架件12的平移滑动，从而避免了导光板的翘曲。
实施例二，请参阅图2a和图2b，图2a是本发明另一实施例背板组件的部分结构剖视图，图2b是图2a所示背板组件在横架件翘曲后的配合方式示意图。
本实施例中，背板组件包括但不限于可动件21和横架件22。
如前所述，可动件21可由散热材料制成，以增强背光模组的散热效果，可动件21的具体材料可视背光模组需要达到的散热效果以及背板组件自身的结构设计而定，在此不作赘述。
具体而言，可动件21包括承载部211、竖直部212、光源213以及第一导向部214等，而横架件22上则设置有第二导向部221，其中，第一导向部214和第二导向部221可以为前面实施例所述的凸块或导槽的任意组合，在此不作赘述。需要指出的是：实施例二与实施例一的区别在于，实施例二中采用的连接方式为凸块、铆钉或滑块等连接件230，且连接件230是截面为“工”字形的哑铃状滑块，连接件230两个端部平行于承载部211方向的截面面积大于其中间部分平行于承载部111方向的截面面积，连接件230中间部分的大小与第一导向部214和第二导向部221的开口大小相匹配以允许连接件230在第一导向部214和第二导向部221内自由滑动。连接件230两个端部的内侧面分别抵住承载部211正面和横架件22的底面，从而在垂直承载部211的方向固定横架件22和可动件21，使其在垂直承载部211的方向不发生上下移动。背板组件的其他部件的结构、配合关系及避免导光板翘曲的原理在实施例一中已经作了详细说明，故在此不作赘述。
本实施例通过在背板组件的可动件21上设置第一导向部214，在背板组件的横架件22上设置第二导向部221，导光板放置于可动件21上。当横架件22由于刚度不足发生翘曲时，会带动可动件挤压导光板，导光板施加反作用力推动可动件21，可动件21通过第一导向部214与第二导向部221的配合，作远离横架件22的平移滑动，从而避免了导光板的翘曲。
实施例三，请参阅图3a和图3b，图3a是本发明另一实施例背板组件的部分结构剖视图，图3b是图3a所示背板组件在横架件翘曲后的配合方式示意图。
本实施例中，背板组件包括但不限于可动件31和横架件32。
优选地，可动件31由散热材料制成，以增强背光模组的散热效果，可动件31的具体材料可视背光模组需要达到的散热效果以及背板组件自身的结构设计而定，在此不作限定。
具体而言，可动件31包括承载部311、竖直部312、光源313以及第一导向部314等，而横架件32上则设置有第二导向部321，其中，第一导向部314和第二导向部321可以为前面实施例所述的凸块或导槽的任意组合，在此不作赘述。实施例三与实施例二的区别在于，本实施例中连接件330上部为一矩形板，矩形板下部连接两个圆柱型凸台，圆柱型凸台中间部分直径大小与第一导向部314和第二导向部321的开口大小相匹配以允许连接件330在第一导向部314和第二导向部321内自由滑动。圆柱型凸台底部直径略大于第一导向部314和第二导向部321的开口大小。当连接件330进行安装时，圆柱型凸台中间部分贯穿第一导向部314和第二导向部321，圆柱型凸台底部抵住横架件32的底面，矩形板的底面抵住承载部310，从而在垂直横架件32的方向固定横架件32和可动件31，使其在垂直横架件32的方向不发生上下移动。连接件330的具体形状及其与横架件32和可动件31的配合方式可以根据背光模组自身的设计而定，在此不作赘述。背板组件的其他部件的结构、配合关系及避免导光板翘曲的原理在前面实施例已经作了详细说明，故在此不再赘述。
本实施例通过在背板组件的可动件31上设置第一导向部314，在背板组件的横架件32上设置第二导向部321，导光板放置于可动件31上。当横架件32由于刚度不足发生翘曲时，会带动可动件挤压导光板，导光板施加反作用力推动可动件31，可动件31通过第一导向部314与第二导向部321的配合，作远离横架件32的平移滑动，从而避免了导光板的翘曲。
请进一步参阅图4到图6，图4是本发明一实施例背板组件的结构示意图，图5是图4所示背板组件的Ⅴ部分放大示意图，图6是图4所示背板组件的正面视图。
在图4的背板组件具体结构中不难看出，背板组件包括第一可动件411、第二可动件412、横架件42、连接件430以及固定件440。
第一可动件411和第二可动件412分别设置在横架件42的两端，第一可动件411包括第一承载部4111、第一竖直部4112、光源4113以及第一导向部，第二可动件412包括第二承载部4121、第二竖直部4122以及第二导向部。其中，上述部件的结构及配合方式已经在前面实施例中进行了详细的描述，故在此不作赘述。需要指出的是，第一可动件411和第二可动件412进一步包括垂直第一竖直部4112和第二竖直部4122设置的第一侧部4115和第二侧部（未标示），第一侧部4115和第二侧部分别沿第一可动件411和第二可动件412的边缘设置。
横架件42进一步包括间隔设置的第一支架421和第二支架422，第一支架421和第二支架422通过固定件440相连接。横架件42和可动件相配合，具体来说，通过第一导向部和第二导向部的配合使得第一可动件411和第二可动件412沿横架件42作相靠近或相远离的滑动，具体配合方式已经在前文中进行了详细的描述，在此不再赘述。固定件440与横架件42的固定方式可以为焊接、一体成型或其他固定连接方式，固定件440的数目可以为两条或两条以上，也可以为一条，具体数目以及与横架件42的固定方式可视背板组件自身的设计而定，在此不作限定。另外，连接件430可以为前述的凸块、铆钉或滑块等的任意组合，在此不再赘述。
下面结合图4和图5来说明导光板的安装过程：将导光板底面放置于第一承载部4111和第二承载部4121上，导光板其中一个侧面抵住可第一竖直部4112靠近横架件42的一面，导光板与上述侧面相邻的另一侧面抵住第一侧部4115的内侧面；导光板其他各侧面的安装请参照上述过程，在此不作赘述。
本发明实施例还提供一种背光模组，该背光模组包括光学部材和如前所述的背板组件。其中，光学部材为层叠设计的导光板和光学膜片，一般而言，光学膜片放置在导光板的上方，导光板起支撑光学膜片的作用。背板组件包括可动件和横架件，可动件上的承载部用于支承光学部材，可动件上的竖直部与侧部配合以固定光学部材。由于背板组件的具体结构已经在前面实施例中进行了详细的描述，在此不再赘述。而背板组件与光学部材的配合方式也在前面进行了说明，故这里不作重复说明。
本发明实施例还提供一种液晶显示装置，该液晶显示装置包括液晶面板和前一实施例的背光模组。其中，背光模组的背板组件包括可动件和横架件，可动件上的承载部用于支承光学部材，可动件上的竖直部与侧部配合以固定光学部材。可动件上设置有竖直部和侧部，竖直部上设置有第一支撑部，侧部上设置有第二支撑部，液晶面板固定于第一支撑部和第二支撑部上。由于背板组件和背光模组的具体结构已经在前文中进行了详细的描述，故在此不作赘述。
不难理解，由于该液晶显示装置配备了前文中所描述的背光模组或背板组件，故该液晶显示装置能够避免导光板的翘曲，增强背光模组的使用效果。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (16)

  1. 一种液晶显示装置，其中，所述液晶显示装置包括液晶面板、背光模组以及用于所述背光模组的背板组件，所述背光模组包括光源、导光板，所述背板组件包括：
    可动件，所述可动件上设置有承载部及竖直部，所述承载部用于承载所述导光板，所述竖直部用于设置所述光源，所述承载部上设置有第一导向部；
    横架件，所述横架件上设置有第二导向部，通过所述第一导向部和所述第二导向部的配合以实现所述可动件与所述横架件的相对滑动连接，用于实现所述光源作远离或靠近所述横架件的平移滑动；
    所述竖直部上设置有第一支撑部，所述可动件的侧部上设置有第二支撑部，所述液晶面板固定于所述第一支撑部和所述第二支撑部上；
    其中，所述第一导向部为凸块且所述第二导向部为导槽，或者所述第一导向部为导槽且所述第二导向部为凸块，又或者所述第一导向部和所述第二导向部均为导槽且通过铆钉或滑块分别贯穿所述第一导向部和所述第二导向部。
  2. 根据权利要求1所述的液晶显示装置，其中，所述第一导向部与所述第二导向部均为多个，且一一对应配合。
  3. 根据权利要求1所述的液晶显示装置，其中，所述凸块为固定设置于所述承载部上的铆钉，或与所述承载部一体成型。
  4. 根据权利要求1所述的液晶显示装置，其中，所述横架件包括间隔设置的第一支架和第二支架，所述第一支架和所述第二支架通过固定件相连接，所述可动件包括第一可动件和第二可动件并分别设置在所述横架件的两端，通过所述第一导向部和所述第二导向部的配合使得所述第一可动件和所述第二可动件沿所述横架件作相靠近或相远离的滑动。
  5. 根据权利要求1所述的液晶显示装置，其中，所述可动件由散热材料制成，所述可动件还设置有与所述竖直部垂直的侧部，所述侧部与所述竖直部配合形成定位槽以固定所述导光板。
  6. 一种用于背光模组的背板组件，其中，包括：
    可动件，所述可动件上设置有承载部及竖直部，所述承载部用于承载所述背光模组的导光板，所述竖直部用于设置所述背光模组的光源，所述承载部上设置有第一导向部；
    横架件，所述横架件上设置有第二导向部，通过所述第一导向部和所述第二导向部的配合以实现所述可动件与所述横架件的相对滑动连接，用于实现所述光源作远离或靠近所述横架件的平移滑动。
  7. 根据权利要求6所述的背板组件，其中，所述第一导向部为凸块，所述第二导向部为导槽，所述凸块与所述导槽相匹配以允许所述凸块在所述导槽中滑动。
  8. 根据权利要求7所述的背板组件，其中，所述第一导向部与所述第二导向部均为多个，且一一对应配合，所述凸块为固定设置于所述承载部上的铆钉，或与所述承载部一体成型。
  9. 根据权利要求6所述的背板组件，其中，所述第一导向部为导槽，所述第二导向部为凸块，所述导槽与所述凸块相匹配以允许所述凸块在所述导槽中滑动。
  10. 根据权利要求9所述的背板组件，其中，所述第一导向部与所述第二导向部均为多个，且一一对应配合，所述凸块为固定设置于所述承载部上的铆钉，或与所述承载部一体成型。
  11. 根据权利要求6所述的背板组件，其中，所述第一导向部和所述第二导向部均为导槽，通过铆钉或滑块分别贯穿所述第一导向部和所述第二导向部。
  12. 根据权利要求11所述的背板组件，其中，所述第一导向部与所述第二导向部均为多个，且一一对应配合。
  13. 根据权利要求6所述的背板组件，其中，所述横架件包括间隔设置的第一支架和第二支架，所述第一支架和所述第二支架通过固定件相连接，所述可动件包括第一可动件和第二可动件并分别设置在所述横架件的两端，通过所述第一导向部和所述第二导向部的配合使得所述第一可动件和所述第二可动件沿所述横架件作相靠近或相远离的滑动。
  14. 根据权利要求6所述的背板组件，其中，所述可动件由散热材料制成，所述可动件还设置有与所述竖直部垂直的侧部，所述侧部与所述竖直部配合形成定位槽以固定所述导光板。
  15. 一种背光模组，其中，所述背光模组包括光源、导光板以及背板组件，所述背板组件包括：
    可动件，所述可动件上设置有承载部及竖直部，所述承载部用于承载所述导光板，所述竖直部用于设置所述光源，所述承载部上设置有第一导向部；
    横架件，所述横架件上设置有第二导向部，通过所述第一导向部和所述第二导向部的配合以实现所述可动件与所述横架件的相对滑动连接，用于实现所述光源作远离或靠近所述横架件的平移滑动；
    其中，所述光源邻近所述导光板靠近所述竖直部的侧面设置，所述导光板设置在所述可动件上。
  16. 根据权利要求15所述的背光模组，其中，所述第一导向部为凸块且所述第二导向部为导槽，或者所述第一导向部为导槽且所述第二导向部为凸块，又或者所述第一导向部和所述第二导向部均为导槽且通过铆钉或滑块分别贯穿所述第一导向部和所述第二导向部。
PCT/CN2012/079880 2012-07-31 2012-08-09 液晶显示装置及其背光模组和背板组件 Ceased WO2014019249A1 (zh)

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