WO2014079100A1 - 一种中框及液晶显示装置 - Google Patents

一种中框及液晶显示装置 Download PDF

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Publication number
WO2014079100A1
WO2014079100A1 PCT/CN2012/085725 CN2012085725W WO2014079100A1 WO 2014079100 A1 WO2014079100 A1 WO 2014079100A1 CN 2012085725 W CN2012085725 W CN 2012085725W WO 2014079100 A1 WO2014079100 A1 WO 2014079100A1
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WO
WIPO (PCT)
Prior art keywords
inclined portion
support portion
top surface
liquid crystal
crystal display
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PCT/CN2012/085725
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English (en)
French (fr)
Inventor
王利锋
萧宇均
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深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/702,287 priority Critical patent/US20140139778A1/en
Publication of WO2014079100A1 publication Critical patent/WO2014079100A1/zh

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    • 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
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • 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
    • G02F2201/46—Fixing elements
    • G02F2201/465—Snap -fit

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a middle frame and a liquid crystal display device.
  • FIG. 1 is a schematic structural diagram of a liquid crystal display device of the prior art.
  • the related art liquid crystal display device 10 includes a back plate 11, a middle frame 12, a light source 13, a light guide plate 14, and an optical film 15.
  • the middle frame 12 includes a first support portion 121 and a second support portion 122 that are perpendicular to each other, and the light guide plate 14 includes a light incident surface 141 and a light exit surface 142.
  • the first support portion 121 is disposed on the back plate 11, and the light guide plate 14 is disposed above the back plate 11.
  • the light source 13 is disposed on the light incident surface 141 side of the light guide plate 14, the optical film 15 is disposed on the light exit surface 142 of the light guide plate 14, and the second support portion 122 of the middle frame 12 is located above the optical film 15 and is adjacent to the optical film.
  • a gap 16 is formed between the sheets 15.
  • the liquid crystal display device 10 of the prior art further provides a gap 17 between the light incident surface 141 of the light guide plate 14 and the light source 13.
  • the light emitted from the light source 13 may diverge in the gap 17 and leak out through the gap 16, thereby causing the liquid crystal display device 10 to leak light, thereby lowering the display quality of the liquid crystal display device 10.
  • the technical problem to be solved by the present invention is to provide a middle frame and a liquid crystal display device, which can improve the light leakage phenomenon of the liquid crystal display device, thereby improving the display quality of the liquid crystal display device.
  • the present invention adopts a technical solution to provide a middle frame
  • the middle frame includes a first support portion and a second support portion disposed perpendicular to a top surface of the first support portion, wherein the first The support portion further includes a bottom surface disposed opposite to the top surface, wherein the bottom surface includes an inclined portion extending obliquely from the bottom surface toward the top surface;
  • first support portion further includes at least one sidewall connecting the top surface and the bottom surface, the bottom surface including a horizontal portion parallel to the top surface, the inclined portion including the first end and the second portion The first end is in contact with the horizontal portion, the second end is in contact with the side wall, the inclined portion has an inclined height H, and the H satisfies the following relationship:
  • H1 is a vertical distance from the top surface of the first support portion to the first end of the inclined portion, and H2 is a portion of the top surface of the first support portion to the inclined portion The vertical distance of the second end;
  • H is less than 0.2 mm, and the inclination angle of the inclined portion is less than 5 degrees, wherein the inclination angle is an angle between the inclined portion and a horizontal plane.
  • the middle frame includes a first support portion and a second support portion disposed perpendicular to a top surface of the first support portion, wherein A support portion further includes a bottom surface disposed opposite to the top surface, wherein the bottom surface includes an inclined portion extending obliquely from the bottom surface toward the top surface.
  • the first support portion further includes at least one side wall connecting the top surface and the bottom surface, the bottom surface includes a horizontal portion parallel to the top surface, the inclined portion includes a first end and a second end, and the first end is in contact with the horizontal portion, The two ends are connected to the side wall, the inclined height of the inclined portion is H, and H satisfies the following relationship:
  • H1 is a vertical distance from a top surface of the first support portion to a first end of the inclined portion
  • H2 is a vertical distance from a top surface of the first support portion to a second end of the inclined portion.
  • the value of H is less than 0.2 mm, and the inclination angle of the inclined portion is less than 5 degrees, wherein the inclination angle is an angle between the inclined portion and the horizontal plane.
  • the first support portion includes a first sidewall and a second sidewall connected to the top surface and the bottom surface and spaced apart from each other.
  • the inclined portion includes a first end and a second end, and the first end is connected to the first sidewall, The two ends are in contact with the second side wall, the inclined height of the inclined portion is H, and H satisfies the following relationship:
  • H1 is a vertical distance from a top surface of the first support portion to a first end of the inclined portion
  • H2 is a vertical distance from a top surface of the first support portion to a second end of the inclined portion.
  • the value of H is less than 0.2 mm, and the inclination angle of the inclined portion is less than 5 degrees, wherein the inclination angle is an angle between the inclined portion and the horizontal plane.
  • a liquid crystal display device including: a front frame; a back plate, which cooperates with the front frame to form an accommodating space; On the backplane, the light guide plate includes a light incident surface and a light exit surface; the optical film is disposed on the light exit surface of the light guide plate; wherein the liquid crystal display device further includes a middle frame, the middle frame includes the first support portion and the first support a second supporting portion disposed vertically on the top surface of the portion, the first supporting portion further includes a bottom surface disposed opposite to the top surface, wherein the bottom surface includes an inclined portion extending obliquely from the bottom surface toward the top surface; the first supporting portion of the middle frame is disposed On the back plate, the second support portion is located above the optical film such that when the inclined portion of the first support portion is attached to the back plate, the second support portion presses the optical film.
  • the first support portion further includes at least one side wall connecting the top surface and the bottom surface, the bottom surface includes a horizontal portion parallel to the top surface, the inclined portion includes a first end and a second end, and the first end is in contact with the horizontal portion, The two ends are connected to the side wall, the inclined height of the inclined portion is H, and H satisfies the following relationship:
  • H1 is a vertical distance from a top surface of the first support portion to a first end of the inclined portion
  • H2 is a vertical distance from a top surface of the first support portion to a second end of the inclined portion.
  • the value of H is less than 0.2 mm, and the inclination angle of the inclined portion is less than 5 degrees, wherein the inclination angle is an angle between the inclined portion and the horizontal plane.
  • the horizontal distance from the first end of the inclined portion to the light incident surface of the light guide plate is greater than the horizontal distance from the second end of the inclined portion to the light incident surface.
  • the height of the accommodating space is H3, wherein the value of H1 is greater than the value of H2, and the value of H2 is greater than the value of H3.
  • the first support portion includes a first sidewall and a second sidewall connected to the top surface and the bottom surface and spaced apart from each other.
  • the inclined portion includes a first end and a second end, and the first end is connected to the first sidewall, The two ends are in contact with the second side wall, the inclined height of the inclined portion is H, and H satisfies the following relationship:
  • H1 is a vertical distance from a top surface of the first support portion to a first end of the inclined portion
  • H2 is a vertical distance from a top surface of the first support portion to a second end of the inclined portion.
  • the value of H is less than 0.2 mm, and the inclination angle of the inclined portion is less than 5 degrees, wherein the inclination angle is an angle between the inclined portion and the horizontal plane.
  • the horizontal distance from the first end of the inclined portion to the light incident surface of the light guide plate is greater than the horizontal distance from the second end of the inclined portion to the light incident surface.
  • the height of the accommodating space is H3, wherein the value of H1 is greater than the value of H2, and the value of H2 is greater than the value of H3.
  • the utility model has the beneficial effects that the bottom surface of the first support portion of the middle frame of the present invention comprises an inclined portion extending obliquely from the bottom surface toward the top surface of the middle frame, so that the liquid crystal display device is assembled.
  • the first support portion is pressed to be inclined, thereby driving the second support portion to be inclined.
  • the second support portion of the middle frame presses the optical film to prevent the light source from being emitted.
  • the light leaks from between the optical film and the second support portion of the middle frame, thereby improving the light leakage phenomenon of the liquid crystal display device, thereby improving the display quality of the liquid crystal display device.
  • FIG. 1 is a schematic structural view of a liquid crystal display device of the prior art
  • FIG. 2 is a schematic structural view of a liquid crystal display device according to a first embodiment of the present invention
  • FIG. 3 is a schematic structural view of a middle frame in the liquid crystal display device shown in FIG. 2;
  • FIG. 4 is a schematic structural view of the liquid crystal display device shown in FIG. 2 after being assembled
  • Fig. 5 is a view showing the configuration of a middle frame of a liquid crystal display device according to a second embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a liquid crystal display device according to a first embodiment of the present invention.
  • the liquid crystal display device 20 of the present embodiment includes a front frame 21, a back plate 22, a light guide plate 23, an optical film 24, and a middle frame 25.
  • the front frame 21 and the back plate 22 cooperate to form an accommodating space 26 for accommodating various components of the liquid crystal display device 20 to fix and protect various components inside the liquid crystal display device 20.
  • the light guide plate 23 is disposed on the back plate 22, wherein the light guide plate 23 includes a light incident surface 231 and a light exit surface 232.
  • the optical film 24 is disposed on the light-emitting surface 232 of the light guide plate 23 for uniformly distributing the light emitted from the light guide plate 23.
  • the middle frame 25 is disposed on the back plate 22.
  • the specific structure of the middle frame 25 is referred to FIG. 3, which is a schematic structural view of the middle frame 25.
  • the middle frame 25 includes a first support portion 251 and a second support portion 252.
  • the first support portion 251 includes oppositely disposed top surfaces 253 and bottom surfaces 254, and the top surface 253 of the first support portion 251 and the second support portion 252 are perpendicular.
  • the bottom surface 254 of the first support portion 251 includes an inclined portion 255 extending obliquely from the bottom surface 254 toward the top surface 253.
  • the first support portion 251 further includes a first sidewall 258 and a second sidewall 259 that are connected to the top surface 253 and the bottom surface 254 and are spaced apart in parallel.
  • the inclined portion 255 includes a first end 256 that is in contact with the first side wall 258, a second end 257 that is in contact with the second side wall 259, and an inclined height of the inclined portion 255 that is H, and H satisfies the following relationship:
  • H1 is the vertical distance from the top surface 253 of the first support portion 251 to the first end 256 of the inclined portion 255
  • H2 is the vertical distance from the top surface 253 of the first support portion 251 to the second end 257 of the inclined portion 255.
  • the value of the height H of the inclined portion 255 is preferably less than 0.2 mm
  • the inclination angle of the inclined portion 255 is preferably less than 5 degrees, wherein the inclination angle is an angle between the inclined portion 255 and the horizontal plane.
  • the horizontal distance D1 of the first end 256 of the inclined portion 255 to the light incident surface 231 of the light guide plate 23 is greater than the horizontal distance D2 of the second end 257 of the inclined portion 255 to the light incident surface 231 of the light guide plate 23.
  • FIG. 4 is a schematic view showing the structure of the liquid crystal display device 20 shown in FIG. 2 after assembly of the present invention.
  • the inclined portion 255 is attached to the surface of the back plate 22 when the liquid crystal display device 20 is assembled. Therefore, the second support portion 252 is inclined downward (ie, toward the direction of the optical film 24) and thus pressed against the optical film 24.
  • the assembled height of the accommodating space 26 in this embodiment is H3, wherein the values of H1 and H3 satisfy the following relationship:
  • the value of H1 is greater than the value of H2, and the value of H2 is greater than the value of H3. Therefore, when the liquid crystal display device 20 is assembled, the front frame 21 and the back plate 22 cooperate with each other to form the accommodating space 26, so that the first support portion 25 is pressed by the front frame 21 and the back plate 22, and the inclined portion 255 is subjected to pressure and then Tilting occurs in the direction of FIG. 2 until the inclined portion 255 and the backing plate 22 are completely fitted.
  • the second support portion 252 also inclines as the first support portion 251 is tilted, thereby pressing the optical film 24 .
  • the liquid crystal display device 20 of the present embodiment further includes a heat sink 27, a light source 28, a reflection sheet 29, and a liquid crystal display panel 210.
  • the heat sink 27 is disposed on the back plate 22.
  • the light source 28 is disposed on the sidewall of the heat sink 27 and spaced apart from the light incident surface 231 of the light guide plate 23 by a gap 211 to prevent the heat generated by the light source 28 from expanding and deforming the light guide plate 23, thereby crushing the light source 28.
  • the reflection sheet 29 is disposed between the heat sink 27 and the light guide plate 23.
  • the liquid crystal display panel 210 is disposed between the second support portion 252 and the front frame 21, and a buffer member 212 is disposed between the front frame 21 and the liquid crystal display panel 210 and between the liquid crystal display panel 210 and the second support portion 252.
  • the liquid crystal display panel 210 is prevented from being damaged by the front frame 21 or the second support portion 252.
  • the second supporting portion 252 extends toward the light source 27 at a position corresponding to the gap 211, and a reflecting member 213 is disposed at a portion where the second supporting portion 252 extends.
  • the reflecting member 213 can reflect the light emitted by the light source 28. Returning to the light guide plate 23, the utilization of light is improved. Further, since the position of the reflecting member 213 is disposed at the near light source 28, the light transmission path is reduced, thereby further reducing the loss of light.
  • the first support portion 251 is inclined when the liquid crystal display device 20 is assembled, and the second support is driven by the bottom surface of the first support portion 251.
  • Portion 252 is tilted to compress optical film 24. Therefore, the light leakage phenomenon of the liquid crystal display device 20 is improved, and the display quality of the liquid crystal display device 20 is improved.
  • FIG. 5 is a schematic structural diagram of a middle frame of a liquid crystal display device according to a second embodiment of the present invention.
  • the middle frame 35 of the liquid crystal display device of the present embodiment is different from the middle frame 25 of the first embodiment shown in FIG. 3 in that the bottom surface 354 of the middle frame 35 of the present embodiment includes a horizontal level.
  • the portion 350 and an inclined portion 355. in particular:
  • the first support portion 351 includes at least one side wall 359 connecting the top surface 353 and the bottom surface 354, and the bottom surface 354 includes a horizontal portion 350 parallel to the top surface 353 and an inclined portion 355 connected to the horizontal portion 350.
  • the inclined portion 355 includes a first end 356 and a second end 357, and the first end 356 is in contact with the horizontal portion 350, and the second end 357 is in contact with the side wall 359.
  • the first support portion 351 of the present embodiment is also tilted until it is attached to the back plate of the liquid crystal display device, thereby causing the second support portion 352 to tilt to press the optical film. Therefore, the light leakage phenomenon of the liquid crystal display device is improved, thereby improving the display quality of the liquid crystal display device.
  • the present invention provides that the bottom surface of the first supporting portion is inclined from the bottom surface toward the top surface of the middle frame, so that when the liquid crystal display device is assembled, the first supporting portion is squeezed by the front frame and the bottom plate. The tilt is pressed until it is brought into contact with the back sheet of the liquid crystal display device, thereby causing the second support portion to be tilted to press the optical film. Therefore, the light leakage phenomenon of the liquid crystal display device is improved, thereby improving the display quality of the liquid crystal display device.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (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

一种中框及液晶显示装置。该液晶显示装置（20）包括前框（21）、背板（22）、导光板（23）、光学膜片（24）以及中框（25）。中框（25）包括第一支撑部（251）和与第一支撑部（251）的顶面（253）垂直设置的第二支撑部（252），其中，第一支撑部（251）还包括与顶面（253）相对设置的底面（254），其中，底面（254）包括一自底面（254）朝向顶面（253）倾斜延伸的倾斜部（255）。通过上述方式，在组装液晶显示装置（20）时，第一支撑部（251）发生倾斜，进而带动第二支撑部（252）也发生倾斜，以压紧光学膜片（24），因此，改善了液晶显示装置的漏光现象，从而提高液晶显示装置的显示品质。

Description

一种中框及液晶显示装置
【技术领域】
本发明涉及显示技术领域，特别是涉及一种中框及液晶显示装置。
【背景技术】
请参阅图1，图1为现有技术的液晶显示装置的结构示意图。如图1所示，现有技术的液晶显示装置10包括背板11、中框12、光源13、导光板14以及光学膜片15。其中，中框12包括相互垂直的第一支撑部121和第二支撑部122，导光板14包括入光面141和出光面142。
第一支撑部121设置在背板11上，导光板14设置在背板11上方。光源13设置在导光板14的入光面141侧，光学膜片15设置在导光板14的出光面142上，并且中框12的第二支撑部122位于光学膜片15的上方并与光学膜片15之间间隔一空隙16。
为防止光源13产生的热使导光板14膨胀变形，进而压伤光源13，现有技术的液晶显示装置10进一步设置导光板14的入光面141和光源13之间间隔一空隙17。
但光源13发出的光有可能在空隙17发散，并进一步通过空隙16泄露出去，因此，会造成液晶显示装置10漏光，进而降低液晶显示装置10的显示品质。
【发明内容】
本发明主要解决的技术问题是提供一种中框及液晶显示装置，能够改善液晶显示装置的漏光现象，从而提高液晶显示装置的显示品质。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种中框，该中框包括第一支撑部和与第一支撑部的顶面垂直设置的第二支撑部，其中，第一支撑部还包括与顶面相对设置的底面，其中，底面包括一自底面朝向顶面倾斜延伸的倾斜部；
其中，所述第一支撑部还包括连接所述顶面和所述底面的至少一个侧壁，所述底面包括与所述顶面平行的水平部，所述倾斜部包括第一端和第二端，所述第一端与所述水平部相接，所述第二端与所述侧壁相接，所述倾斜部的倾斜高度为H，并且所述H满足以下关系式：
H=H1-H2，
其中，H1为所述第一支撑部的所述顶面到所述倾斜部的所述第一端的垂直距离，H2为所述第一支撑部的所述顶面到所述倾斜部的所述第二端的垂直距离；
所述H的值小于0.2毫米，并且所述倾斜部的倾斜角度小于5度，其中，所述倾斜角度是所述倾斜部与水平面的夹角。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种中框，该中框包括第一支撑部和与第一支撑部的顶面垂直设置的第二支撑部，其中，第一支撑部还包括与顶面相对设置的底面，其中，底面包括一自底面朝向顶面倾斜延伸的倾斜部。
其中，第一支撑部还包括连接顶面和底面的至少一个侧壁，底面包括与顶面平行的水平部，倾斜部包括第一端和第二端，第一端与水平部相接，第二端与侧壁相接，倾斜部的倾斜高度为H，并且H满足以下关系式：
H=H1-H2，
其中，H1为第一支撑部的顶面到倾斜部的第一端的垂直距离，H2为第一支撑部的顶面到倾斜部的第二端的垂直距离。
其中，H的值小于0.2毫米，并且倾斜部的倾斜角度小于5度，其中，倾斜角度是倾斜部与水平面的夹角。
其中，第一支撑部包括连接顶面和底面且平行间隔设置的第一侧壁和第二侧壁，倾斜部包括第一端和第二端，第一端与第一侧壁相接，第二端与第二侧壁相接，倾斜部的倾斜高度为H，并且H满足以下关系式：
H=H1-H2，
其中，H1为第一支撑部的顶面到倾斜部的第一端的垂直距离，H2为第一支撑部的顶面到倾斜部的第二端的垂直距离。
其中，H的值小于0.2毫米，并且倾斜部的倾斜角度小于5度，其中，倾斜角度是倾斜部与水平面的夹角。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种液晶显示装置，该液晶显示装置包括：前框；背板，与前框配合以形成一容置空间；导光板，设置在背板上，导光板包括入光面与出光面；光学膜片，设置在导光板的出光面上；其中，液晶显示装置进一步包括中框，中框包括第一支撑部和与第一支撑部的顶面垂直设置的第二支撑部，第一支撑部还包括与顶面相对设置的底面，其中，底面包括一自底面朝向顶面倾斜延伸的倾斜部；中框的第一支撑部设置在背板上，第二支撑部位于光学膜片上方，使得第一支撑部的倾斜部与背板贴合时，第二支撑部压紧光学膜片。
其中，第一支撑部还包括连接顶面和底面的至少一个侧壁，底面包括与顶面平行的水平部，倾斜部包括第一端和第二端，第一端与水平部相接，第二端与侧壁相接，倾斜部的倾斜高度为H，并且H满足以下关系式：
H=H1-H2，
其中，H1为第一支撑部的顶面到倾斜部的第一端的垂直距离，H2为第一支撑部的顶面到倾斜部的第二端的垂直距离。
其中，H的值小于0.2毫米，并且倾斜部的倾斜角度小于5度，其中，倾斜角度是倾斜部与水平面的夹角。
其中，倾斜部的第一端到导光板的入光面的水平距离大于倾斜部的第二端到入光面的水平距离。
其中，容置空间的高度为H3，其中，H1的值大于H2的值，并且H2的值大于H3的值。
其中，第一支撑部包括连接顶面和底面且平行间隔设置的第一侧壁和第二侧壁，倾斜部包括第一端和第二端，第一端与第一侧壁相接，第二端与第二侧壁相接，倾斜部的倾斜高度为H，并且H满足以下关系式：
H=H1-H2，
其中，H1为第一支撑部的顶面到倾斜部的第一端的垂直距离，H2为第一支撑部的顶面到倾斜部的第二端的垂直距离。
其中，H的值小于0.2毫米，并且倾斜部的倾斜角度小于5度，其中，倾斜角度是倾斜部与水平面的夹角。
其中，倾斜部的第一端到导光板的入光面的水平距离大于倾斜部的第二端到入光面的水平距离。
其中，容置空间的高度为H3，其中，H1的值大于H2的值，并且H2的值大于H3的值。
本发明的有益效果是：区别于现有技术的情况，本发明设置中框的第一支撑部的底面包括一自底面朝向中框的顶面倾斜延伸的倾斜部，使得在组装液晶显示装置时，第一支撑部受挤压而产生倾斜，进而带动第二支撑部产生倾斜，当底面的倾斜部与背板贴合时，中框的第二支撑部压紧光学膜片，防止了光源发出的光从光学膜片和中框的第二支撑部之间泄露，因此改善了液晶显示装置的漏光现象，从而提高了液晶显示装置的显示品质。
【附图说明】
图1是现有技术的液晶显示装置的结构示意图；
图2是本发明第一实施例的液晶显示装置的结构示意图；
图3是图2所示的液晶显示装置中的中框的结构示意图；
图4是图2所示的液晶显示装置完成组装之后的结构示意图；
图5是本发明第二实施例的液晶显示装置的中框的结构示意图。
【具体实施方式】
请参阅图2，图2是本发明的第一实施例的液晶显示装置的结构示意图。如图2所示，本实施例的液晶显示装置20包括前框21、背板22、导光板23、光学膜片24以及中框25。
其中，前框21与背板22配合以形成一容置空间26，该容置空间26用以收容液晶显示装置20的各种组件，固定与保护液晶显示装置20内部的各种组件。
导光板23设置在背板22上，其中，导光板23包括入光面231和出光面232。光学膜片24设置在导光板23的出光面232上，用于使导光板23的出射光均匀分布。
中框25设置在背板22上，其中，中框25的具体结构请一并参阅图3，图3是中框25的结构示意图。
如图2和图3所示，中框25包括第一支撑部251和第二支撑部252。其中，第一支撑部251包括相对设置的顶面253和底面254，并且第一支撑部251的顶面253和第二支撑部252垂直。本实施例中，第一支撑部251的底面254包括一自底面254朝向顶面253倾斜延伸的倾斜部255。
具体而言，第一支撑部251还包括连接顶面253和底面254且平行间隔设置的第一侧壁258和第二侧壁259。倾斜部255包括第一端256和第二端257，第一端256与第一侧壁258相接，第二端257与第二侧壁259相接，倾斜部255的倾斜高度为H，并且H满足以下关系式：
H=H1-H2，
其中，H1为第一支撑部251的顶面253到倾斜部255的第一端256的垂直距离，H2为第一支撑部251的顶面253到倾斜部255的第二端257的垂直距离。本实施例中，倾斜部255的高度H的值优选小于0.2毫米，并且倾斜部255的倾斜角度优选小于5度，其中，倾斜角度是倾斜部255与水平面的夹角。
本实施例中，倾斜部255的第一端256到导光板23的入光面231的水平距离D1大于倾斜部255的第二端257到导光板23的入光面231的水平距离D2。
图4是本发明图2所示的液晶显示装置20组装后的结构示意图。请一并参阅图2、图3和图4所示，由于第一支撑部251的底面254设置了一倾斜部255，在组装液晶显示装置20时，倾斜部255与背板22的表面贴合，因此使得第二支撑部252向下（即：朝向光学膜片24的方向）发生倾斜，进而压持在光学膜片24上。本实施例中的容置空间26组装后的的高度为H3，其中，H1和H3的取值满足以下关系：
H1的值大于H2的值，并且H2的值大于H3的值。因此，在组装液晶显示装置20时，前框21和背板22配合形成的容置空间26，使得第一支撑部25受到前框21和背板22的挤压，倾斜部255受到压力后朝着如图2的方向发生倾斜，直至倾斜部255和背板22完全贴合。第二支撑部252也随着第一支撑部251的倾斜而发生倾斜，进而压紧光学膜片24。
进一步地，请再参阅图2所示，本实施例的液晶显示装置20还包括散热片27、光源28、反射片29以及液晶显示面板210。其中，散热片27设置在背板22上。光源28设置在散热片27的侧壁上并与导光板23的入光面231间隔一空隙211，以防止光源28产生的热使导光板23膨胀变形，进而压伤光源28。反射片29设置在散热片27和导光板23之间。液晶显示面板210设置在第二支撑部252与前框21之间，并且在前框21与液晶显示面板210之间以及液晶显示面板210与第二支撑部252之间均设置有缓冲件212，以防止液晶显示面板210受到前框21或第二支撑部252的损坏。
本实施例中，第二支撑部252在对应着空隙211处向光源27的方向延伸，并在第二支撑部252延伸出来的部分设置反射件213，反射件213可将光源28发出的光反射回到导光板23中，提高了光的利用率。进一步地，由于反射件213的位置设置在较近光源28处，因此，减少了光的传输路径，从而进一步减少光的损失。
因此，区别于现有技术的情况，本实施例通过设置第一支撑部251的底面为一倾斜部的结构，使得在组装液晶显示装置20时，第一支撑251产生倾斜，进而带动第二支撑部252产生倾斜，以压紧光学膜片24。因此，改善了液晶显示装置20的漏光现象，从而提高了液晶显示装置20的显示品质。
请参阅图5，图5是本发明第二实施例的液晶显示装置的中框的结构示意图。如图5所示，本实施例的液晶显示装置的中框35与图3所示的第一实施例的中框25的不同之处在于：本实施例的中框35的底面354包括一水平部350和一倾斜部355。具体而言：
第一支撑部351包括连接顶面353和底面354的至少一个侧壁359，底面354包括与顶面353平行的水平部350以及与水平部350连接的倾斜部355。其中，倾斜部355包括第一端356和第二端357，并且第一端356与水平部350相接，第二端357与侧壁359相接。
同理，本实施例的第一支撑部351在组装时也会发生倾斜直至和液晶显示装置的背板贴合，由此带动第二支撑部352发生倾斜，以压紧光学膜片。因此，改善了液晶显示装置的漏光现象，从而提高液晶显示装置的显示品质。
综上所述，本发明通过设置第一支撑部的底面为一自底面朝向中框的顶面倾斜延伸的倾斜部，使得在组装液晶显示装置时，第一支撑部受到前框和底板的挤压而产生倾斜直至和液晶显示装置的背板贴合，由此带动第二支撑部产生倾斜，以压紧光学膜片。因此，改善了液晶显示装置的漏光现象，从而提高了液晶显示装置的显示品质。
以上所述仅为本发明的实施方式，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 (15)

  1. 一种中框，其中，所述中框包括第一支撑部和与所述第一支撑部的顶面垂直设置的第二支撑部，其中，所述第一支撑部还包括与所述顶面相对设置的底面，其中，所述底面包括一自所述底面朝向所述顶面倾斜延伸的倾斜部；
    其中，所述第一支撑部还包括连接所述顶面和所述底面的至少一个侧壁，所述底面包括与所述顶面平行的水平部，所述倾斜部包括第一端和第二端，所述第一端与所述水平部相接，所述第二端与所述侧壁相接，所述倾斜部的倾斜高度为H，并且所述H满足以下关系式：
    H=H1-H2，
    其中，H1为所述第一支撑部的所述顶面到所述倾斜部的所述第一端的垂直距离，H2为所述第一支撑部的所述顶面到所述倾斜部的所述第二端的垂直距离；
    所述H的值小于0.2毫米，并且所述倾斜部的倾斜角度小于5度，其中，所述倾斜角度是所述倾斜部与水平面的夹角。
  2. 一种中框，其中，所述中框包括第一支撑部和与所述第一支撑部的顶面垂直设置的第二支撑部，其中，所述第一支撑部还包括与所述顶面相对设置的底面，其中，所述底面包括一自所述底面朝向所述顶面倾斜延伸的倾斜部。
  3. 根据权利要求2所述的中框，其中，所述第一支撑部还包括连接所述顶面和所述底面的至少一个侧壁，所述底面包括与所述顶面平行的水平部，所述倾斜部包括第一端和第二端，所述第一端与所述水平部相接，所述第二端与所述侧壁相接，所述倾斜部的倾斜高度为H，并且所述H满足以下关系式：
    H=H1-H2，
    其中，H1为所述第一支撑部的所述顶面到所述倾斜部的所述第一端的垂直距离，H2为所述第一支撑部的所述顶面到所述倾斜部的所述第二端的垂直距离。
  4. 根据权利要求3所述的中框，其中，所述H的值小于0.2毫米，并且所述倾斜部的倾斜角度小于5度，其中，所述倾斜角度是所述倾斜部与水平面的夹角。
  5. 根据权利要求2所述的中框，其中，所述第一支撑部包括连接所述顶面和所述底面且平行间隔设置的第一侧壁和第二侧壁，所述倾斜部包括第一端和第二端，所述第一端与所述第一侧壁相接，所述第二端与所述第二侧壁相接，所述倾斜部的倾斜高度为H，并且所述H满足以下关系式：
    H=H1-H2，
    其中，H1为所述第一支撑部的所述顶面到所述倾斜部的所述第一端的垂直距离，H2为所述第一支撑部的所述顶面到所述倾斜部的所述第二端的垂直距离。
  6. 根据权利要求5所述的中框，其中，所述H的值小于0.2毫米，并且所述倾斜部的倾斜角度小于5度，其中，所述倾斜角度是所述倾斜部与水平面的夹角。
  7. 一种液晶显示装置，所述液晶显示装置包括：
    前框；
    背板，与所述前框配合以形成一容置空间；
    导光板，设置在所述背板上，所述导光板包括入光面与出光面；
    光学膜片，设置在所述导光板的出光面上；其中：
    所述液晶显示装置进一步包括中框，所述中框包括第一支撑部和与所述第一支撑部的顶面垂直设置的第二支撑部，所述第一支撑部还包括与所述顶面相对设置的底面，其中，所述底面包括一自所述底面朝向所述顶面倾斜延伸的倾斜部；
    所述中框的所述第一支撑部设置在所述背板上，所述第二支撑部位于所述光学膜片上方，使得所述第一支撑部的所述倾斜部与所述背板贴合时，所述第二支撑部压紧所述光学膜片。
  8. 根据权利要求7所述的液晶显示装置，其中，所述第一支撑部还包括连接所述顶面和所述底面的至少一个侧壁，所述底面包括与所述顶面平行的水平部，所述倾斜部包括第一端和第二端，所述第一端与所述水平部相接，所述第二端与所述侧壁相接，所述倾斜部的倾斜高度为H，并且所述H满足以下关系式：
    H=H1-H2，
    其中，H1为所述第一支撑部的所述顶面到所述倾斜部的所述第一端的垂直距离，H2为所述第一支撑部的所述顶面到所述倾斜部的所述第二端的垂直距离。
  9. 根据权利要求8所述的液晶显示装置，其中，所述H的值小于0.2毫米，并且所述倾斜部的倾斜角度小于5度，其中，所述倾斜角度是所述倾斜部与水平面的夹角。
  10. 根据权利要求8所述的液晶显示装置，其中，所述倾斜部的所述第一端到所述导光板的所述入光面的水平距离大于所述倾斜部的所述第二端到所述入光面的水平距离。
  11. 根据权利要求8所述的液晶显示装置，其中，所述容置空间的高度为H3，其中，所述H1的值大于所述H2的值，并且所述H2的值大于所述H3的值。
  12. 根据权利要求7所述的液晶显示装置，其中，所述第一支撑部包括连接所述顶面和所述底面且平行间隔设置的第一侧壁和第二侧壁，所述倾斜部包括第一端和第二端，所述第一端与所述第一侧壁相接，所述第二端与所述第二侧壁相接，所述倾斜部的倾斜高度为H，并且所述H满足以下关系式：
    H=H1-H2，
    其中，H1为所述第一支撑部的所述顶面到所述倾斜部的所述第一端的垂直距离，H2为所述第一支撑部的所述顶面到所述倾斜部的所述第二端的垂直距离。
  13. 根据权利要求12所述的液晶显示装置，其中，所述H的值小于0.2毫米，并且所述倾斜部的倾斜角度小于5度，其中，所述倾斜角度是所述倾斜部与水平面的夹角。
  14. 根据权利要求12所述的液晶显示装置，其中，所述倾斜部的所述第一端到所述导光板的所述入光面的水平距离大于所述倾斜部的所述第二端到所述入光面的水平距离。
  15. 根据权利要求12所述的液晶显示装置，其中，所述容置空间的高度为H3，其中，所述H1的值大于所述H2的值，并且所述H2的值大于所述H3的值。
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