WO2012139334A1 - 液晶显示器及其背光模组 - Google Patents

液晶显示器及其背光模组 Download PDF

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Publication number
WO2012139334A1
WO2012139334A1 PCT/CN2011/076303 CN2011076303W WO2012139334A1 WO 2012139334 A1 WO2012139334 A1 WO 2012139334A1 CN 2011076303 W CN2011076303 W CN 2011076303W WO 2012139334 A1 WO2012139334 A1 WO 2012139334A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
light guide
plastic frame
bottom wall
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/CN2011/076303
Other languages
English (en)
French (fr)
Inventor
张彦学
郭仪正
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 US13/375,482 priority Critical patent/US8625046B2/en
Publication of WO2012139334A1 publication Critical patent/WO2012139334A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086Positioning aspects
    • G02B6/0088Positioning aspects of the light guide or other optical sheets in the package
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314Back frames

Definitions

  • the present invention relates to the field of liquid crystal display, and in particular to a liquid crystal display and a backlight module thereof. ⁇ Background technique ⁇
  • the existing edge-lit liquid crystal display requires a light guide plate, and the light guide plate needs to be positioned on the back plate.
  • a CNC CNC machine tool
  • a positioning groove or a positioning column is formed on the back plate, and the cooperation between the two is realized.
  • Positioning assembly of the light guide plate and the back plate increases the complexity of the manufacture of the light guide plate while reducing the yield of the light guide plate.
  • the technical problem to be solved by the present invention is to provide a liquid crystal display and a backlight module thereof, so as to avoid providing an additional positioning structure on the light guide plate and improving the yield of the light guide plate.
  • a technical solution adopted by the present invention is to provide a backlight module including a back plate and a light guide plate, the back plate including a bottom wall and a periphery disposed on the bottom wall and perpendicular to The sidewall of the bottom wall extends, and the light guide plate is supported on the bottom wall.
  • the bottom wall is bent and provided with at least one positioning flap, and the positioning flap abuts against a side edge of the light guide plate to position the light guide plate.
  • the backlight module further includes a plastic frame, the plastic frame receives the positioning flap and is supported on a top surface of the light guide plate, the plastic frame includes a plastic frame main body, a first blocking wall and a second blocking wall, the first blocking block
  • the wall extends from the frame body toward the bottom wall on a side of the positioning flap adjacent to the light guide plate, and is disposed to be supported on a top surface of the light guide plate.
  • the second blocking wall extends from the plastic frame main body toward the bottom wall on the other side of the positioning flap opposite to the light guide plate, and the positioning flap is inserted between the first blocking wall and the second blocking wall.
  • the plastic frame further includes a first supporting wall extending from the frame main body toward the bottom wall and connected to the second blocking wall, the first supporting wall being supported on the bottom wall.
  • the plastic frame further includes a second supporting wall extending from the frame main body toward the bottom wall and abutting an inner edge of the side wall, the second supporting wall further supporting the bottom wall .
  • the backlight module includes a back plate and a light guide plate.
  • the back plate includes a bottom wall and a side wall disposed at a periphery of the bottom wall and extending perpendicular to the bottom wall.
  • the light guide plate is supported on the bottom wall, and the bottom wall is bent and provided with at least one positioning flap. The positioning flap abuts against a side edge of the light guide plate to position the light guide plate.
  • the backlight module further includes a plastic frame, and the plastic frame receives the positioning flap and is supported on a top surface of the light guide plate.
  • the plastic frame comprises a plastic frame body, a first barrier wall and a second barrier wall.
  • the first barrier wall extends from the frame body toward the bottom wall of the positioning flap toward the light guide plate, and the second barrier wall is from the frame body away from the light guide plate side of the positioning flap. Extending toward the bottom wall, the positioning flap is inserted between the first barrier wall and the second barrier wall.
  • the plastic frame further includes a third barrier wall and a fourth barrier wall extending from the frame body toward the bottom wall and connecting the first barrier wall and the second barrier wall.
  • the sheet is further inserted between the third barrier and the fourth barrier.
  • the first barrier wall is disposed to be supported on a top surface of the light guide plate.
  • the bottom wall is provided with a notch at the periphery of the positioning flap, and the second blocking wall, the third blocking wall and the fourth blocking wall extend through the notch to form a bottom surface of the bottom wall Flush.
  • the frame further includes a first support wall extending from the frame body toward the bottom wall and coupled to the second barrier wall, the first support wall being supported on the bottom wall.
  • the plastic frame further includes a second supporting wall extending from the frame main body toward the bottom wall and abutting an inner edge of the side wall, the second supporting wall further supporting the bottom wall .
  • another technical solution adopted by the present invention is: providing a liquid crystal display, wherein the liquid crystal display comprises a backlight module, and the backlight module comprises a back plate and a light guide
  • the back plate includes a bottom wall and a side wall disposed at a periphery of the bottom wall and extending perpendicular to the bottom wall, the light guide plate is supported on the bottom wall, and the bottom wall is bent and provided with at least one positioning flap The positioning flap abuts against a side edge of the light guide plate to position the light guide plate.
  • the backlight module further includes a plastic frame, and the plastic frame receives the positioning flap and is supported on a top surface of the light guide plate.
  • the plastic frame includes a plastic frame main body, a first blocking wall and a second blocking wall, and the first blocking wall faces the plastic frame main body on a side of the positioning flap adjacent to the light guiding plate. a bottom wall extending from the plastic frame body toward the bottom wall on the other side of the positioning flap opposite to the light guide plate, the positioning flap being inserted into the first blocking wall and the second blocking wall between.
  • the plastic frame further includes a third barrier wall and a fourth barrier wall extending from the frame body toward the bottom wall and connecting the first barrier wall and the second barrier wall.
  • the sheet is further inserted between the third barrier and the fourth barrier.
  • the first barrier wall is disposed to be supported on a top surface of the light guide plate.
  • the bottom wall is provided with a notch at the periphery of the positioning flap, and the second blocking wall, the third blocking wall and the fourth blocking wall extend through the notch to form a bottom surface of the bottom wall Flush.
  • the frame further includes a first support wall extending from the frame body toward the bottom wall and coupled to the second barrier wall, the first support wall being supported on the bottom wall.
  • the plastic frame further includes a second supporting wall extending from the frame main body toward the bottom wall and abutting an inner edge of the side wall, the second supporting wall further supporting the bottom wall .
  • the liquid crystal display further includes a liquid crystal panel and a front frame, the plastic frame further comprising a third support wall and a fourth support wall extending away from the bottom wall of the plastic frame body, the liquid crystal panel being supported by The front frame is supported on the third support wall and the fourth support wall and is fixed to the side wall of the back plate, thereby clamping the liquid crystal panel, the plastic frame and the light guide plate.
  • the present invention utilizes the positioning flaps on the bottom wall of the backboard to position the light guide plate, thereby avoiding the provision of an additional positioning structure on the light guide plate, thereby improving The light guide plate yield.
  • FIG. 1 is a partial perspective cross-sectional view showing an embodiment of a liquid crystal display of the present invention
  • Figure 2 is a cross-sectional view showing a portion II of the liquid crystal display shown in Figure 1;
  • Fig. 3 is a partially enlarged schematic view showing the plastic frame of the liquid crystal display shown in Fig. 1.
  • FIG. 1 is a partial cross-sectional perspective view of an embodiment of a liquid crystal display of the present invention.
  • the liquid crystal display 1 of the present embodiment includes a back sheet 10, a light guide plate 20, a plastic frame 30, a liquid crystal panel 40, and a front frame 50.
  • Figure 2 is a cross-sectional view of a portion II of the liquid crystal display shown in Figure 1.
  • the backing plate 10 includes a bottom wall 11 and a side wall 12 disposed at a periphery of the bottom wall 11 and extending perpendicularly to the bottom wall 11.
  • the light guide plate 20 is disposed in the accommodating space defined by the bottom wall 11 and the side wall 12, and is supported on the bottom wall 11.
  • at least one positioning flap 13 is bent and bent on the bottom wall 11. The positioning flaps 13 abut against the side edges of the light guide plate 20 to position the light guide plate 20 in the horizontal direction.
  • the backsheet 10 can be stamped from sheet metal and the light guide panel 20 can be injection molded from acrylic or other transparent material.
  • the positioning of the light guide plate 20 is achieved by positioning the flaps 13 against the side edges of the light guide plate 20.
  • the light guide plate 20 can be directly processed into a standard rectangular structure, thereby avoiding the provision of additional on the light guide plate 20. The positioning structure further improves the yield of the light guide plate 20.
  • the plastic frame 30 receives the positioning flaps 13 and is supported on the top surface of the light guide plate 20 to form a backlight module.
  • the plastic frame 30 includes a plastic frame main body 31, a first blocking wall 32, and a second Retaining wall 33.
  • the first retaining wall 32 extends from the plastic frame main body 31 toward the bottom wall 11 on the side of the positioning flap 13 adjacent to the light guide plate 20 .
  • the second retaining wall 33 extends from the bezel main body 31 toward the bottom wall 11 on the other side of the positioning flap 13 opposite to the light guide plate 20.
  • the positioning flap 13 can be inserted between the first retaining wall 32 and the second retaining wall 33 to position the plastic frame 30.
  • the first retaining wall 32 is disposed to be supported on the top surface of the light guide plate 20, thereby sandwiching the light guide plate 20 together with the bottom wall 11, thereby positioning the light guide plate 20 in the vertical direction.
  • FIG. 3 is a partially enlarged schematic view of the plastic frame 30 of the liquid crystal display shown in FIG. 1.
  • the bezel 30 further includes a third retaining wall 34 and a fourth retaining wall 35.
  • the third retaining wall 34 and the fourth retaining wall 35 extend from the frame main body 31 toward the bottom wall 11 and connect the first retaining wall 32 and the second retaining wall 33 such that the positioning flap 13 can be further inserted into the third retaining wall 34. Between the fourth retaining wall 35. At this time, the positioning flap 13 is positioned in the positioning space formed by the first retaining wall 32, the second retaining wall 33, the third retaining wall 34 and the fourth retaining wall 35, thereby avoiding the movement of the plastic frame 30 relative to the bottom wall 11.
  • the bezel 30 further includes a first support wall 36 that extends from the bezel body 31 toward the bottom wall 11 and is coupled to the second barrier wall 33.
  • the bottom wall 11 is provided with a notch 14 at the periphery of the positioning flap 13, and the second retaining wall 33, the third retaining wall 34 and the fourth retaining wall 35 extend through the notch 14 to be flat with the bottom surface of the bottom wall 11. Qi.
  • the first support wall 36 is supported on the bottom wall 11 to increase the strength of the plastic frame 30.
  • the bezel 30 further includes a second support wall 37, a third support wall 38, and a fourth support wall 39.
  • the second supporting wall 37 extends from the frame main body 31 toward the bottom wall 11 and abuts against the inner edge of the side wall 12, and is further supported on the bottom wall 11.
  • the third support wall 38 and the fourth support wall 39 extend away from the bottom wall 11 from the frame main body 31.
  • the fourth support wall 39 also abuts against the inner edge of the side wall 12.
  • the frame 30 can be injection molded from a plastic material.
  • the liquid crystal panel 40 is supported on the plastic frame main body 31.
  • the front frame 50 is supported on the third supporting wall 38 and the fourth supporting wall 39 and fixed to the side wall 12 of the backing plate 10, thereby clamping the liquid crystal.
  • the panel 40, the plastic frame 30 and the light guide plate 20 are supported on the plastic frame main body 31.
  • the present invention utilizes the positioning flaps 13 on the bottom wall 11 of the backing plate 10 to the light guide plate 20 The positioning is performed to avoid the provision of an additional positioning structure on the light guide plate 20, which improves the yield of the light guide plate 20.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Description

液晶显示器及其背光模组
【技术领域】
本发明涉及液晶显示领域, 特别是涉及一种液晶显示器及其背光模组。 【背景技术】
随着科学技术的发展, 液晶显示器已经应用到人们的日常生活中。 现有的 侧光式液晶显示器需用到导光板, 并需将导光板定位于背板上。 在现有的定位 方式中, 一般使用 CNC (数控机床)在导光板的侧边缘上加工出凸耳或其他定 位结构, 并在背板上加工出定位槽或定位柱, 通过二者的配合实现导光板与背 板的定位装配。 然而, 上述方式增加了导光板制造的复杂度, 同时降低了导光 板的良率。
【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器及其背光模组, 以避免 在导光板上设置附加的定位结构, 提高导光板的良率。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种背光模组, 该背光模组包括背板及导光板, 该背板包括底壁以及设置于该底壁的周边并垂 直于该底壁延伸的侧壁, 该导光板支撑于该底壁上。 该底壁上弯折设置有至少 一定位折片, 该定位折片抵靠该导光板的侧边缘, 以对该导光板进行定位。 该 背光模组进一步包括胶框, 该胶框接收该定位折片且支撑于该导光板的顶面上, 该胶框包括胶框主体、 第一挡壁和第二挡壁, 该第一挡壁在该定位折片的靠近 该导光板一侧从该胶框主体朝向该底壁延伸, 并设置成支撑于该导光板的顶面 上。 该第二挡壁在该定位折片相对该导光板的另一侧从该胶框主体朝向该底壁 延伸, 该定位折片插入于该第一挡壁和该第二挡壁之间。
根据本发明一优选实施例, 该胶框进一步包括从该胶框主体朝向该底壁延 伸且与该第二挡壁连接的第一支撑壁, 该第一支撑壁支撑于该底壁上。 根据本发明一优选实施例, 该胶框进一步包括从该胶框主体朝向该底壁延 伸且抵靠该侧壁的内侧边缘的第二支撑壁, 该第二支撑壁进一步支撑于该底壁 上。
为解决上述技术问题, 本发明釆用的另一个技术方案是: 提供一种背光模 组。 该背光模组包括背板及导光板。 该背板包括底壁以及设置于该底壁的周边 并垂直于该底壁延伸的侧壁, 该导光板支撑于该底壁上, 该底壁上弯折设置有 至少一定位折片,该定位折片抵靠该导光板的侧边缘,以对该导光板进行定位。
根据本发明一优选实施例, 该背光模组进一步包括胶框, 该胶框接收该定 位折片且支撑于该导光板的顶面上。
根据本发明一优选实施例, 该胶框包括胶框主体、 第一挡壁和第二挡壁。 该第一挡壁在该定位折片的靠近该导光板一侧从该胶框主体朝向该底壁延伸, 该第二挡壁在该定位折片的远离该导光板一侧从该胶框主体朝向该底壁延伸, 该定位折片插入于该第一挡壁和该第二挡壁之间。
根据本发明一优选实施例, 该胶框进一步包括从该胶框主体朝向该底壁延 伸且连接该第一挡壁和该第二挡壁的第三挡壁和第四挡壁, 该定位折片进一步 插入于该第三挡壁和该第四挡壁之间。
根据本发明一优选实施例, 该第一挡壁设置成支撑于该导光板的顶面上。 根据本发明一优选实施例, 该底壁在该定位折片的周边设置有缺口, 该第 二挡壁、 该第三挡壁和该第四挡壁经该缺口延伸成与该底壁的底面平齐。
根据本发明一优选实施例, 该胶框进一步包括从该胶框主体朝向该底壁延 伸且与该第二挡壁连接的第一支撑壁, 该第一支撑壁支撑于该底壁上。
根据本发明一优选实施例, 该胶框进一步包括从该胶框主体朝向该底壁延 伸且抵靠该侧壁的内侧边缘的第二支撑壁, 该第二支撑壁进一步支撑于该底壁 上。
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 示器, 其特征在于, 该液晶显示器包括背光模组, 该背光模组包括背板及导光 板, 该背板包括底壁以及设置于该底壁的周边并垂直于该底壁延伸的侧壁, 该 导光板支撑于该底壁上, 该底壁上弯折设置有至少一定位折片, 该定位折片抵 靠该导光板的侧边缘, 以对该导光板进行定位。
根据本发明一优选实施例, 该背光模组进一步包括胶框, 该胶框接收该定 位折片且支撑于该导光板的顶面上。
根据本发明一优选实施例, 该胶框包括胶框主体、 第一挡壁和第二挡壁, 该第一挡壁在该定位折片的靠近该导光板一侧从该胶框主体朝向该底壁延伸, 该第二挡壁在该定位折片相对该导光板的另一侧从该胶框主体朝向该底壁延伸, 该定位折片插入于该第一挡壁和该第二挡壁之间。
根据本发明一优选实施例 , 该胶框进一步包括从该胶框主体朝向该底壁延 伸且连接该第一挡壁和该第二挡壁的第三挡壁和第四挡壁, 该定位折片进一步 插入于该第三挡壁和该第四挡壁之间。
根据本发明一优选实施例, 该第一挡壁设置成支撑于该导光板的顶面上。 根据本发明一优选实施例, 该底壁在该定位折片的周边设置有缺口, 该第 二挡壁、 该第三挡壁和该第四挡壁经该缺口延伸成与该底壁的底面平齐。
根据本发明一优选实施例, 该胶框进一步包括从该胶框主体朝向该底壁延 伸且与该第二挡壁连接的第一支撑壁, 该第一支撑壁支撑于该底壁上。
根据本发明一优选实施例, 该胶框进一步包括从该胶框主体朝向该底壁延 伸且抵靠该侧壁的内侧边缘的第二支撑壁, 该第二支撑壁进一步支撑于该底壁 上。
根据本发明一优选实施例, 该液晶显示器进一步包括液晶面板及前框, 该 胶框进一步包括从该胶框主体远离该底壁延伸的第三支撑壁和第四支撑壁, 该 液晶面板支撑于该胶框主体上, 该前框支撑于该第三支撑壁和该第四支撑壁上 并与该背板的侧壁相固定, 进而夹持该液晶面板、 该胶框及该导光板。
本发明的有益效果是: 区别于现有技术的情况, 本发明利用背板的底壁上 的定位折片对导光板进行定位, 避免了在导光板上设置附加的定位结构, 提高 了导光板的良率。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中所 需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明 的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。 其中:
图 1是本发明的液晶显示器一实施例的部分立体剖面示意图;
图 2是图 1所示的液晶显示器的 II部分的剖面示意图;
图 3是图 1所示的液晶显示器的胶框的局部放大示意图。
【具体实施方式】
参阅图 1 , 图 1是本发明的液晶显示器一实施例的部分剖面立体示意图。本 实施例的液晶显示器 1包括背板 10、 导光板 20、 胶框 30、 液晶面板 40以及前 框 50。
参阅图 2, 图 2是图 1所示的液晶显示器的 II部分的剖面示意图。 如图 2 所示,背板 10包括底壁 11以及设置于底壁 11的周边并垂直于底壁 11延伸的侧 壁 12。 导光板 20设置于底壁 11与侧壁 12所定义的容置空间内, 并支撑于底壁 11上。 在本实施例中, 底壁 11上弯折设置有至少一定位折片 13。 定位折片 13 抵靠导光板 20的侧边缘, 以对导光板 20进行水平方向上的定位。 在优选实施 例中, 背板 10可由金属片材冲压而成, 导光板 20可由亚克力或其他透明材料 注塑而成。 在本实施例中, 通过定位折片 13抵靠导光板 20的侧边缘来实现导 光板 20的定位, 可以将导光板 20直接加工成标准的矩形结构, 避免了在导光 板 20上设置附加的定位结构, 进而提高了导光板 20的良率。
如图 2所示, 胶框 30接收定位折片 13且支撑于导光板 20的顶面上, 进而 形成一背光模组。 具体来说, 胶框 30包括胶框主体 31、 第一挡壁 32以及第二 挡壁 33。 其中, 第一挡壁 32在定位折片 13的靠近导光板 20—侧从胶框主体 31朝向底壁 11延伸。 第二挡壁 33在定位折片 13的相对导光板 20的另一侧从 胶框主体 31朝向底壁 11延伸。 由此, 使得定位折片 13可插入于第一挡壁 32 和第二挡壁 33之间, 进而对胶框 30进行定位。 第一挡壁 32设置成支撑于导光 板 20的顶面上, 由此与底壁 11共同夹持导光板 20 , 进而对导光板 20进行竖直 方向上的定位。
参阅图 3 , 图 3是图 1所示的液晶显示器的胶框 30的局部放大示意图。 如 图 3所示, 胶框 30进一步包括第三挡壁 34以及第四挡壁 35。 第三挡壁 34和第 四挡壁 35从胶框主体 31朝向底壁 11延伸且连接第一挡壁 32和第二挡壁 33, 以使得定位折片 13可进一步插入于第三挡壁 34和第四挡壁 35之间。 此时, 定 位折片 13定位于第一挡壁 32、 第二挡壁 33、 第三挡壁 34和第四挡壁 35所形 成的定位空间内, 避免了胶框 30相对底壁 11的移动。 此外, 胶框 30进一步包 括第一支撑壁 36,第一支撑壁 36从胶框主体 31朝向底壁 11延伸且与第二挡壁 33连接。
如图 2所示, 底壁 11在定位折片 13的周边设置有缺口 14 , 第二挡壁 33、 第三挡壁 34和第四挡壁 35经缺口 14延伸成与底壁 11的底面平齐。 同时, 第 一支撑壁 36支撑于底壁 11 , 以提高胶框 30的强度。
如图 2所示, 胶框 30进一步包括第二支撑壁 37、 第三支撑壁 38以及第四 支撑壁 39。 其中, 第二支撑壁 37从胶框主体 31朝向底壁 11延伸且抵靠侧壁 12的内侧边缘, 并进一步支撑于底壁 11上。 第三支撑壁 38和第四支撑壁 39从 胶框主体 31远离底壁 11延伸。 第四支撑壁 39同样抵靠侧壁 12的内侧边缘。 在优选实施例中, 胶框 30可由塑胶材料注塑而成。
如图 2所示, 液晶面板 40支撑于胶框主体 31上, 前框 50支撑于第三支撑 壁 38和第四支撑壁 39上并与背板 10的侧壁 12相固定,进而夹持液晶面板 40、 胶框 30以及导光板 20。
通过上述结构,本发明利用背板 10的底壁 11上的定位折片 13对导光板 20 进行定位, 避免了在导光板 20上设置附加的定位结构, 提高了导光板 20的良 率。
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

权 利 要 求
1. 一种背光模组, 所述背光模组包括背板及导光板, 所述背板包括底壁以 及设置于所述底壁的周边并垂直于所述底壁延伸的侧壁, 所述导光板支撑于所 述底壁上, 其特征在于, 所述底壁上弯折设置有至少一定位折片, 所述定位折 片抵靠所述导光板的侧边缘, 以对所述导光板进行定位; 所述背光模组进一步 包括胶框, 所述胶框接收所述定位折片且支撑于所述导光板的顶面上; 所述胶 框包括胶框主体、 第一挡壁和第二挡壁, 所述第一挡壁在所述定位折片的靠近 所述导光板一侧从所述胶框主体朝向所述底壁延伸, 并设置成支撑于所述导光 板的顶面上; 所述第二挡壁在所述定位折片相对所述导光板的另一侧从所述胶 框主体朝向所述底壁延伸, 所述定位折片插入于所述第一挡壁和所述第二挡壁 之间。
2. 根据权利要求 1所述的背光模组, 其特征在于, 所述胶框进一步包括从 所述胶框主体朝向所述底壁延伸且与所述第二挡壁连接的第一支撑壁, 所述第 一支撑壁支撑于所述底壁上。
3. 根据权利要求 2所述的背光模组, 其特征在于, 所述胶框进一步包括从 所述胶框主体朝向所述底壁延伸且 ·ί氏靠所述侧壁的内侧边缘的第二支撑壁, 所 述第二支撑壁进一步支撑于所述底壁上。 所述胶框进一步包括从所述胶框主体 朝向所述底壁延伸且抵靠所述侧壁的内侧边缘的第二支撑壁, 所述第二支撑壁 进一步支撑于所述底壁上。
4. 一种背光模組, 所述背光模组包括背板及导光板, 所述背板包括底壁以 及设置于所述底壁的周边并垂直于所述底壁延伸的侧壁, 所述导光板支撑于所 述底壁上, 其特征在于, 所述底壁上弯折设置有至少一定位折片, 所述定位折 片抵靠所述导光板的侧边缘, 以对所述导光板进行定位。
5. 根据权利要求 4所述的背光模组, 其特征在于, 所述背光模组进一步包 括胶框, 所述胶框接收所述定位折片且支撑于所述导光板的顶面上。
6. 根据权利要求 5所述的背光模组,其特征在于,所述胶框包括胶框主体、 第一挡壁和第二挡壁, 所述第一挡壁在所述定位折片的靠近所述导光板一侧从 所述胶框主体朝向所述底壁延伸, 所述第二挡壁在所述定位折片相对所述导光 板的另一侧从所述胶框主体朝向所述底壁延伸, 所述定位折片插入于所述第一 挡壁和所述第二挡壁之间。
7. 根据权利要求 6所述的背光模组, 其特征在于, 所述胶框进一步包括从 所述胶框主体朝向所述底壁延伸且连接所述第一挡壁和所述第二挡壁的第三挡 壁和第四挡壁, 所述定位折片进一步插入于所述第三挡壁和所述第四挡壁之间。
8. 根据权利要求 7所述的背光模组, 其特征在于, 所述第一挡壁设置成支 撑于所述导光板的顶面上。
9. 根据权利要求 8所述的背光模组, 其特征在于, 所述底壁在所述定位折 片的周边设置有缺口, 所述第二挡壁、 所述第三挡壁和所述第四挡壁经所述缺 口延伸成与所述底壁的底面平齐。
10. 根据权利要求 8所述的背光模组, 其特征在于, 所述胶框进一步包括从 所述胶框主体朝向所述底壁延伸且与所述第二挡壁连接的第一支撑壁, 所述第 一支撑壁支撑于所述底壁上。
11. 根据权利要求 10所述的背光模组, 其特征在于, 所述胶框进一步包括 从所述胶框主体朝向所述底壁延伸且 ·ί氏靠所述侧壁的内侧边缘的第二支撑壁, 所述第二支撑壁进一步支撑于所述底壁上。
12. 一种液晶显示器, 其特征在于, 所述液晶显示器包括背光模组, 所述背 光模组包括背板及导光板, 所述背板包括底壁以及设置于所述底壁的周边并垂 直于所述底壁延伸的侧壁, 所述导光板支撑于所述底壁上, 所述底壁上弯折设 置有至少一定位折片, 所述定位折片抵靠所述导光板的侧边缘, 以对所述导光 板进行定位。
13. 根据权利要求 12所述的液晶显示器, 其特征在于, 所述背光模组进一 步包括胶框, 所述胶框接收所述定位折片且支撑于所述导光板的顶面上。
14. 根据权利要求 13所述的液晶显示器, 其特征在于, 所述胶框包括胶框 主体、 第一挡壁和第二挡壁, 所述第一挡壁在所述定位折片的靠近所述导光板 一侧从所述胶框主体朝向所述底壁延伸 , 所述第二挡壁在所述定位折片相对所 述导光板的另一侧从所述胶框主体朝向所述底壁延伸, 所述定位折片插入于所 述第一挡壁和所述第二挡壁之间。
15. 根据权利要求 14所述的液晶显示器, 其特征在于, 所述胶框进一步包 括从所述胶框主体朝向所述底壁延伸且连接所述第一挡壁和所述第二挡壁的第 三挡壁和第四挡壁, 所述定位折片进一步插入于所述第三挡壁和所述第四挡壁 之间。
16. 根据权利要求 15所述的液晶显示器, 其特征在于, 所述第一挡壁设置 成支撑于所述导光板的顶面上。
17. 根据权利要求 16所述的液晶显示器, 其特征在于, 所述底壁在所述定 位折片的周边设置有缺口, 所述第二挡壁、 所述第三挡壁和所述第四挡壁经所 述缺口延伸成与所述底壁的底面平齐。
18. 根据权利要求 16所述的液晶显示器, 其特征在于, 所述胶框进一步包 括从所述胶框主体朝向所述底壁延伸且与所述第二挡壁连接的第一支撑壁, 所 述第一支撑壁支撑于所述底壁上。
19. 根据权利要求 18所述的液晶显示器, 其特征在于, 所述胶框进一步包 括从所述胶框主体朝向所述底壁延伸且 ·ί氏靠所述侧壁的内侧边缘的第二支撑壁 , 所述第二支撑壁进一步支撑于所述底壁上。
20. 根据权利要求 16所述的液晶显示器, 其特征在于, 所述液晶显示器进 一步包括液晶面板及前框, 所述胶框进一步包括从所述胶框主体远离所述底壁 延伸的第三支撑壁和第四支撑壁, 所述液晶面板支撑于所述胶框主体上, 所述 前框支撑于所述第三支撑壁和所述第四支撑壁上并与所述背板的侧壁相固定, 进而夹持所述液晶面板、 所述胶框及所述导光板。
PCT/CN2011/076303 2011-04-15 2011-06-24 液晶显示器及其背光模组 Ceased WO2012139334A1 (zh)

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