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WO2014036751A1 - 一种背光模组及液晶显示装置 - Google Patents

一种背光模组及液晶显示装置 Download PDF

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Publication number
WO2014036751A1
WO2014036751A1 PCT/CN2012/081357 CN2012081357W WO2014036751A1 WO 2014036751 A1 WO2014036751 A1 WO 2014036751A1 CN 2012081357 W CN2012081357 W CN 2012081357W WO 2014036751 A1 WO2014036751 A1 WO 2014036751A1
Authority
WO
WIPO (PCT)
Prior art keywords
backlight module
liquid crystal
side frames
backlight
crystal glass
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/CN2012/081357
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English (en)
French (fr)
Inventor
张彦学
萧宇均
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 US13/695,684 priority Critical patent/US9256092B2/en
Publication of WO2014036751A1 publication Critical patent/WO2014036751A1/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
    • G02F1/133308—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
    • G02F1/133328—Segmented frames

Definitions

  • the invention relates to a back group and a liquid crystal display device.
  • the application is submitted to the Chinese Patent Office on September 5, 2012, and the application number is 201210325122.9.
  • the present invention relates to the field of liquid crystal display, and in particular to a backlight module and a liquid crystal display device. Background technique
  • the liquid crystal display device includes a display module, and the display module needs to use a backlight to provide a light source for displaying images.
  • the existing backlights are mainly CCFL (Cold Cathode Fluorescent Lamp) and LED (Light Emitting). Diode, LED).
  • CCFL Cold Cathode Fluorescent Lamp
  • LED Light Emitting
  • Diode, LED Diode
  • LED is a new type of light source, which has the advantages of high brightness and low power consumption. Therefore, the design of LED backlight is gradually increasing, which is also a trend for future design.
  • LED since LED also generates high heat at the same time, in order to ensure LED light extraction efficiency and life. , need to design the heat dissipation for the LED.
  • FIG. 5 is a partial cross-sectional structural view of a backlight module in the prior art.
  • the front frame 8 is formed by four side frames that are connected end to end, and each side frame is pressed against the liquid crystal glass 9 to fix it.
  • the inventors have found that the structure has the following drawbacks:
  • the technical problem to be solved by the present invention is to provide a backlight module and a liquid crystal display device, which can significantly improve the firmness of the combination of the liquid crystal glass and the front frame, and can reduce the cost of the backlight module.
  • the present invention provides a backlight module, including: a liquid crystal glass and a front frame, wherein the front frame includes at most three side frames connected in sequence, and the three side frames are pressed against the On the LCD glass.
  • the three side frames include a long side frame and two short side frames.
  • the three side frames include two long side frames and one short side frame.
  • the long side frame and the short side frame are connected to each other in a rectangular shape.
  • the backlight module further includes at least one bonding portion, and the bonding portion fastens the liquid crystal glass on a backlight of the backlight module.
  • the attaching portion is disposed at a position opposite to a position of the long side frame or the short side frame.
  • the present invention provides a backlight module, including: a liquid crystal glass and a front frame, wherein the front frame includes at most two side frames, and the positions of the two side frames are opposite, and the two side frames are pressed against each other.
  • the backlight module further includes at least one bonding portion, and the bonding portion fastens the liquid crystal glass on a backlight of the backlight module.
  • the invention also discloses a liquid crystal display device having the above backlight module.
  • the front frame is provided with three side frames or two side frames, thereby reducing the probability of the liquid crystal glass jumping off from the front frame, and avoiding the occurrence of the liquid crystal glass. Collision breakage or other defects caused by the jump in the frame, improve the quality of the backlight module, and reduce the cost of the backlight module.
  • FIG. 1 is a schematic structural view of a front frame of a backlight module according to a first embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a front frame of a backlight module according to a second embodiment of the present invention.
  • FIG 3 is a schematic structural view of a front frame of a backlight module according to a third embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a front frame of a backlight module according to a fourth embodiment of the present invention.
  • FIG. 5 is a partial cross-sectional structural view of a backlight module in the prior art. detailed description
  • an embodiment of the present invention provides a backlight module, including: a liquid crystal glass 1 And front box 2.
  • the front frame 2 includes at most three side frames connected in sequence, and the three side frames are pressed against the liquid crystal glass 1.
  • an embodiment of the present invention provides a backlight module, including: a liquid crystal glass 1 and a front frame 2.
  • the front frame 2 includes at most two side frames, and the positions of the two side frames are opposite, and the two side frames are pressed against the liquid crystal glass 1.
  • the front frame of the backlight module of the present invention is provided with three side frames or two side frames, omitting a part of the front frame structure with a small amount of pressing on the liquid crystal glass 1 to reduce the probability of the liquid crystal glass 1 jumping off from the front frame 2, and avoiding Collision breakage or other defects caused by the liquid crystal glass 1 jumping out of the front frame 2 occur, improving the quality of the backlight module and reducing the cost of the backlight module.
  • the structure of the backlight module will be specifically described below.
  • the backlight module of this embodiment has a liquid crystal glass 1 and a front frame 2.
  • the front frame 2 includes only three side frames that are sequentially connected, which are a long side frame 21 on the top side as shown in FIG. 1 and two short side frames 22a on the left and right sides as shown in FIG. 22b, the lengths of the two short side frames 22a, 22b are equal and are respectively perpendicularly connected to the two ends of the long side frame 21, so that the long side frame 21 and the short side frames 22a, 22b are connected in a rectangular shape.
  • the shape of the liquid crystal glass 1 can be adapted.
  • the opposite side of the long side frame 21 is provided with a sticking portion for reinforcing the fixing of the liquid crystal glass 1 at a position where the side frame is omitted.
  • the affixing portion is located on the backlight 4 at the bottom position as shown in Fig. 1.
  • the backlight may be a light source, a light guide plate, an optical stencil or other structural member in a specific implementation.
  • the long side frame 21 and the two short side frames 22a, 22b are correspondingly pressed against the edges of the three sides of the liquid crystal glass 1, and the side opposite to the long side frame 21 is omitted.
  • the tape 3 can be attached to the backlight 4 at the frame position, and the liquid crystal glass 1 can be reinforced by the tape 3. Specifically, the two ends of the adhesive tape 3 are respectively bonded to the backlight of the backlight module and the liquid crystal glass 1.
  • the adhesive tape 3 can be disposed as another adhesive structure that can fix the liquid crystal glass on the backlight component of the backlight module, such as a single-sided adhesive tape, an adhesive patch, and the like.
  • the three side frames included in the front frame 2 are respectively two long side frames 21a, 21b and one short side frame 22, and two long side frames.
  • 21a, 21b are respectively located on the top side and the bottom side as shown in Fig. 2
  • the short side side frame 22 is located on the left side as shown in Fig. 2.
  • the bonding portion may be provided on the backlight 4 at the position where the side frame is omitted from the short side frame 22, and the bonding portion may be the same as the tape 3, the tape, and the adhesive sheet of the first embodiment. It can be set to one or more blocks according to the actual situation.
  • the backlight module of this embodiment has a liquid crystal glass 1 and a front frame 2.
  • the front frame 2 includes only two short side frames 22a, 22b, two short side frames 22a, 22b are oppositely disposed (left and right sides as shown in FIG. 3), and two short side frames 22a. 22b is used to pressurize the liquid crystal glass 1.
  • a sticker is disposed on the backlight 4 between the two short side frames 22a, 22b (the top and/or the bottom as shown in FIG. 3) for reinforcing the position of the side frame omitted. Fixation of the liquid crystal glass 1.
  • the two short side frames 22a, 22b correspond to the edge of the two opposite sides of the liquid crystal glass 1 between the two short side frames 22a, 22b.
  • the tape 3 is attached to the backlight 4.
  • the difference between this embodiment and the third embodiment is that the two side frames included in the front frame 2 are disposed as two long side frames 21a, 21b, and the long side frames 21a, 21b.
  • a paste portion is provided on the backlight 4 (left side and right side as shown in FIG. 4).
  • the bonding portion when the liquid crystal glass of a smaller size is assembled, the bonding portion may not be provided; according to the specific structural design of the backlight module, one or two pairs of liquid crystal glass in the front frame may be omitted. A smaller side frame is pressed.
  • the present invention also discloses a liquid crystal display device, which includes the backlight module in any of the above embodiments, and details are not described herein again.
  • the backlight module and the liquid crystal display device using the same have the following advantages:
  • the front frame is provided with three side frames or two side frames, which reduces the probability of the liquid crystal glass jumping off from the front frame and avoids occurrence. Collision breakage or other defects caused by the escape of the liquid crystal glass from the front frame, improve the quality of the backlight module, and reduce the cost 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)
  • Liquid Crystal (AREA)

Description

一种背 组及液晶显示装置 本申请要求于 2012年 9月 5 日提交中国专利局、 申请号为 201210325122.9
、 发明名称为 "一种背光模组及液晶显示装置" 的中国专利申请的优先权， 上 述专利的全部内容通过引用结合在本申请中。 技术领域
本发明涉及液晶显示领域， 尤其涉及一种背光模组及液晶显示装置。 背景技术
液晶显示装置包括显示模组， 显示模组为了显示图像， 都需要用到背光来 提供光源， 现有的背光源主要为 CCFL ( Cold Cathode Fluorescent Lamp, 冷阴极 萤光灯管 )和 LED ( Light Emitting Diode, 发光二极管）。 目前 LED作为较新型 的光源， 具有高亮度低功耗的优点， 故采用 LED背光的设计逐渐增多， 亦为未 来设计发展趋势；但由于 LED同时会产生高热量， 因此为保证 LED出光效率和 寿命， 需针对 LED进行散热设计。
如图 5所示， 为现有技术中背光模组的局部剖视结构示意图。其中， 前框 8 是由首尾相接的四条侧边框围挡而成， 每条侧边框都抵压在液晶玻璃 9上对其 进行固定。 发明人发现， 该结构存在如下的缺陷：
1、 由于每条侧边框对液晶玻璃 9的压着量（指前框 8与液晶玻璃 9的接触 面积）并不相同， 相对于压着量较小的侧边框而言， 在运输过程中若发生跌落， 液晶玻璃往往会从该压着量较小的侧边框中跳脱出来， 从而造成液晶玻璃与前 框碰撞导致破碎或其他产品不良；
2、 传统四侧边框的前框设计， 不利于背光模组的集约化发展， 成本较高。 发明内容
本发明所要解决的技术问题在于， 提供一种背光模组及液晶显示装置， 可 以显著提升液晶玻璃与前框结合的牢固度， 并可降低背光模组的成本。
为了解决上述技术问题， 本发明提供一种背光模组， 包括： 液晶玻璃和前 框， 所述前框至多包括依次相连的三条侧边框， 所述的三条侧边框抵压在所述 液晶玻璃上。
优选的， 所述的三条侧边框包括一条长边侧边框和两条短边侧边框。
优选的， 所述的三条侧边框包括两条长边侧边框和一条短边侧边框。
优选的， 所述长边侧边框和所述短边侧边框相连接的整体呈矩状。
优选的， 所述背光模组还包括至少一个粘贴部， 所述粘贴部将所述液晶玻 璃紧固在所述背光模组的背光源上。
优选的， 所述粘贴部设置在与所述长边侧边框或所述短边侧边框位置相对 的位置上。
本发明提供一种背光模组， 包括： 液晶玻璃和前框， 所述前框至多包括两 条侧边框， 所述的两条侧边框的位置设置相对， 所述的两条侧边框抵压在所述 液晶玻璃上。 优选的， 所述背光模组还包括至少一个粘贴部， 所述粘贴部将所述液晶玻 璃紧固在所述背光模组的背光源上。
本发明还公开了一种具有上述背光模组的液晶显示装置。
本发明所提供的背光模组及采用该背光模组的液晶显示装置， 前框通过设 置三条侧边框或两条侧边框， 降低了液晶玻璃从前框中跳脱的机率， 避免发生 因液晶玻璃从前框中跳脱而引起的碰撞破碎或其他的不良， 提升背光模组的品 质， 降低背光模组的成本。 附图说明
图 1是本发明第一实施例背光模组的前框结构示意图。
图 2是本发明第二实施例背光模组的前框结构示意图。
图 3是本发明第三实施例背光模组的前框结构示意图。
图 4是本发明第四实施例背光模组的前框结构示意图。
图 5是现有技术中的背光模组的局部剖视结构示意图。 具体实施方式
下面参考附图对本发明的优选实施例进行描述。
如图 1、 图 2所示， 本发明实施例提供了一种背光模组， 包括： 液晶玻璃 1 和前框 2。 其中， 前框 2至多包括依次相连的三条侧边框， 三条侧边框抵压在液 晶玻璃 1上。
如图 3、 图 4所示， 本发明实施例提供了一种背光模组， 包括： 液晶玻璃 1 和前框 2。 其中， 前框 2至多包括两条侧边框， 两条侧边框的位置设置相对， 两 条侧边框抵压在液晶玻璃 1上。
本发明的背光模组的前框通过设置三条侧边框或两条侧边框， 省略对液晶 玻璃 1压着量较小的部分前框结构， 降低液晶玻璃 1从前框 2中跳脱的机率， 避免发生因液晶玻璃 1从前框 2中跳脱而引起的碰撞破碎或其他的不良， 提升 背光模组的品质， 降低背光模组的成本。 以下具体说明背光模组的结构。
第一实施例：
请具体参照图 1所示，本实施例的背光模组具有液晶玻璃 1和前框 2。其中， 前框 2仅包括顺次相连的三条侧边框， 分别为位于如图 1所示顶侧的长边侧边 框 21和位于如图 1所示左右两侧的两条短边侧边框 22a、 22b, 两短边侧边框 22a, 22b的长度设置相等并分别垂直连接在长边侧边框 21的两端， 使长边侧边 框 21和短边侧边框 22a、 22b相连接的整体呈矩状， 能够适配液晶玻璃 1的形 状。
长边侧边框 21相对的位置上设置有粘贴部， 用以在被省略侧边框的位置加 强对液晶玻璃 1的固定。 粘贴部位于如图 1所示底部位置的背光源 4上， 背光 源在具体实施中可以是光源、 导光板、 光学用模片或其他结构件。
当组装前框 2在背光模组上时， 长边侧边框 21以及两短边侧边框 22a、 22b 对应抵压在液晶玻璃 1三条侧边的边缘上， 与长边侧边框 21相对的省略侧边框 位置的背光源 4上可以贴设胶带 3 , 通过胶带 3实施对液晶玻璃 1的加固。 具体 的， 将胶带 3的两端分别粘接在背光模组的背光源和液晶玻璃 1即可。
本实施例中， 胶带 3 可以设置为其他可以固定液晶玻璃在背光模组背光部 件上的粘接结构， 如单面胶条， 粘贴片等。
第二实施例：
本实施例与第一实施例不同之处在于， 前框 2 包括的顺次相连的三条侧边 框分别为两条长边侧边框 21a, 21b和一条短边侧边框 22, 两条长边侧边框 21a, 21b分别为位于如图 2所示的顶侧和底侧， 短边侧边框 22位于如图 2所示的左 侧。 本实施例中， 也可以在与短边侧边框 22相对的省略侧边框位置的背光源 4 上设置粘贴部， 粘贴部可以采用与实施例一相同的胶带 3、胶条以及粘贴片等方 式， 可以根据实际情况设置为一块或多块。
第三实施例：
请具体参照图 3所示，本实施例的背光模组具有液晶玻璃 1和前框 2。其中， 前框 2仅包括两条短边侧边框 22a, 22b,两条短边侧边框 22a, 22b相对设置（如 图 3所示的左侧和右侧 ), 两条短边侧边框 22a, 22b用以抵压液晶玻璃 1。
本实施例中， 在两条短边侧边框 22a, 22b之间的背光源 4上（如图 3所示 的顶部和 /或底部）设置有粘贴部， 用以在被省略侧边框的位置加强对液晶玻璃 1的固定。
当组装前框 2在背光模组上时， 两条短边侧边框 22a, 22b对应 4氏压在液晶 玻璃 1两相对侧边的边缘上， 在两条短边侧边框 22a, 22b之间的背光源 4上粘 贴胶带 3。
第四实施例：
请具体参照图 4所示， 本实施例与第三实施例不同之处在于， 前框 2仅包 括的两条侧边框设置为两长边侧边框 21a, 21b, 在长边侧边框 21a, 21b之间的 背光源 4上（如图 4所示的左侧和右侧 )设置有粘贴部。
在前述第一至四的各实施例中， 在装配较小尺寸的液晶玻璃时， 也可不设 置粘贴部； 可以根据背光模组的具体结构设计， 省略前框中的一条或两条对液 晶玻璃压着量较小的侧边框。
本发明还公开了一种液晶显示装置， 该液晶显示装置包括上述任一实施例 中的背光模组， 具体实施方式不再赘述。
实施本发明的背光模组及采用该背光模组的液晶显示装置， 具有如下有益 效果： 前框通过设置三条侧边框或两条侧边框， 降低了液晶玻璃从前框中跳脱 的机率， 避免发生因液晶玻璃从前框中跳脱而引起的碰撞破碎或其他的不良， 提升背光模组的品质， 降低背光模组的成本。

Claims

权 利 要 求
1、 一种背光模组， 包括： 液晶玻璃和前框， 其中， 所述前框至多包括依次 相连的三条侧边框， 所述的三条侧边框抵压在所述液晶玻璃上。
2、 如权利要求 1所述的背光模组， 其中， 所述的三条侧边框包括一条长边 侧边 11和两条短边侧边框。
3、 如权利要求 2所述的背光模组， 其中， 所述长边侧边框和所述短边侧边 框相连接的整体呈矩状。
4、 如权利要求 2所述的背光模组， 其中， 所述背光模组还包括至少一个粘 贴部， 所述粘贴部将所述液晶玻璃紧固在所述背光模组的背光源上。
5、 如权利要求 4所述的背光模组， 其中， 所述粘贴部装设在远离所述长边 侧边框或所述短边侧边框的所述液晶玻璃和所述背光模组的背光源上；
所述背光源包括： 光源、 导光板、 光学部材或背光模组的其他结构件。
6、 如权利要求 1所述的背光模组， 其中， 所述的三条侧边框包括两条长边 侧边 11和一条短边侧边框。
7、 如权利要求 6所述的背光模组， 其中， 所述长边侧边框和所述短边侧边 框相连接的整体呈矩状。
8、 如权利要求 6所述的背光模组， 其中， 所述背光模组还包括至少一个粘 贴部， 所述粘贴部将所述液晶玻璃紧固在所述背光模组的背光源上。
9、 如权利要求 8所述的背光模组， 其中， 所述粘贴部装设在远离所述长边 侧边框或所述短边侧边框的所述液晶玻璃和所述背光模组的背光源上；
所述背光源包括： 光源、 导光板、 光学部材或背光模组的其他结构件。
10、 一种背光模组， 包括： 液晶玻璃和前框， 其中， 所述前框至多包括两 条侧边框， 所述的两条侧边框的位置设置相对， 所述的两条侧边框抵压在所述 液晶玻璃上。
11、 如权利要求 10所述的背光模组， 其中， 所述的两条侧边框包括两条长 边侧边框或两条短边侧边框。
12、 如权利要求 10所述的背光模组， 其中， 所述背光模组还包括至少一个 粘贴部， 所述粘贴部将所述液晶玻璃紧固在所述背光模组的背光源上；
所述背光源包括： 光源、 导光板、 光学部材或背光模组的其他结构件。
13、 一种液晶显示装置， 其中， 所述液晶显示装置包括背光模组， 所述背 光模组包括： 液晶玻璃和前框， 所述前框至多包括依次相连的三条侧边框， 所 述的三条侧边框抵压在所述液晶玻璃上。
14、 如权利要求 13所述的液晶显示装置， 其中， 所述的三条侧边框包括一 条长边侧边框和两条短边侧边框。
15、 如权利要求 14所述的液晶显示装置， 其中， 所述长边侧边框和所述短 边侧边框相连接的整体呈矩状。
16、 如权利要求 14所述的液晶显示装置， 其中， 所述背光模组还包括至少 一个粘贴部， 所述粘贴部将所述液晶玻璃紧固在所述背光模组的背光源上。
17、 如权利要求 16所述的液晶显示装置， 其中， 所述粘贴部装设在远离所 述长边侧边框或所述短边侧边框的所述液晶玻璃和所述背光模组的背光源上； 所述背光源包括： 光源、 导光板、 光学部材或背光模组的其他结构件。
PCT/CN2012/081357 2012-09-05 2012-09-13 一种背光模组及液晶显示装置 Ceased WO2014036751A1 (zh)

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