WO2011079543A1 - 应用于液晶显示设备中的新型背光源装置 - Google Patents

应用于液晶显示设备中的新型背光源装置 Download PDF

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WO2011079543A1
WO2011079543A1 PCT/CN2010/070508 CN2010070508W WO2011079543A1 WO 2011079543 A1 WO2011079543 A1 WO 2011079543A1 CN 2010070508 W CN2010070508 W CN 2010070508W WO 2011079543 A1 WO2011079543 A1 WO 2011079543A1
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liquid crystal
crystal display
profile
display device
frame
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PCT/CN2010/070508
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English (en)
French (fr)
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蔡文珍
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深圳市鸿富鑫精密工业有限公司
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Publication of WO2011079543A1 publication Critical patent/WO2011079543A1/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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means

Definitions

  • the invention relates to the technical field of liquid crystal display devices, and particularly relates to a novel backlight device which is applied to a liquid crystal display device with light weight, low cost and compact structure.
  • the structure of the backlight device in the conventional liquid crystal display device is as shown in FIG. 1 , which is composed of a front frame, a middle frame, a rear frame, a light-emitting panel and a liquid crystal glass cover plate, the front frame is fixed with a liquid crystal glass cover plate, and the middle frame is fixed with a light-emitting plate.
  • the front frame, the middle frame and the rear frame are combined and fixed by screws.
  • the conventional structure has the following disadvantages: First, the front frame, the middle frame and the rear frame of the structure are formed by stamping and injection molding, relying on large molds, and the development cost is high. Taking 32" as an example, the entire mold cost is close RMB2 million; Second, there is no uniform standard for LCD glass manufacturers.
  • the object of the present invention is to provide a novel backlight device for use in a liquid crystal display device which is light in weight, low in cost, and compact in structure and is provided in view of the deficiencies of the prior art.
  • the present invention includes: a luminescent panel disposed in a liquid crystal display device, controlled by a display circuit, and a liquid crystal glazing panel illuminating the luminescent panel, the luminescent panel and the liquid crystal glazing panel A profile frame is inserted into the edge.
  • Each of the edges of the liquid crystal glass cover plate is correspondingly inserted with an upper profile member, and each of the two adjacent upper profile members is inserted into each other through the upper connection block to form an upper profile frame; There is a lower profile member, and each two adjacent lower profile members are inserted into each other through the lower connecting block to form a lower profile frame.
  • the upper profile piece and the upper connection block are fixed by screws, and the lower profile piece and the lower connection block are fixed by screws.
  • Each of the upper and lower corresponding upper and lower profile members has a mutual fitting structure, and after assembly, the corresponding upper and lower profile members are interposed.
  • the upper and lower profile members that are inserted together are fixed by screws.
  • the lower profile frame corresponding to the illuminating panel and the upper profile frame corresponding to the liquid crystal glazing panel are also designed as the same profile frame.
  • the liquid crystal display device is a liquid crystal display or a liquid crystal television.
  • the profile frame is composed of an aluminum profile.
  • the profile frame is a four-frame.
  • the mold cost is very low; the profile structure can be used to produce different lengths of products to adapt to the dimensional change of the liquid crystal glass, and the cost is almost no, and the mold maintenance is extremely low. Cost; the new structure also overcomes the contradiction between the thickness of the traditional structural product and the material cost, and utilizes the natural strength and lightness of the aluminum profile to ensure excellent mechanical strength while ensuring low cost; the new type utilizes aluminum profile
  • the unique processing technology can combine the traditional rear frame and the middle frame into one, that is, the original three large parts are turned into front and rear parts, and the structure is compact.
  • FIG. 1 is a perspective exploded view showing the structure of a conventional backlight device.
  • FIG. 2 is a schematic exploded perspective view of an embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional structural view of the profile frame of FIG. 2.
  • Figure 4 is a schematic longitudinal sectional view of the profile frame of Figure 2.
  • FIG. 1 is a perspective exploded view of a conventional backlight device structure, which is composed of a front frame a, a middle frame b, a rear frame c, and a luminescent panel 10 and a liquid crystal glass cover 20;
  • a profile frame 30 is inserted into the edge of the cover glass 20.
  • Each of the edges of the liquid crystal glass cover 20 is correspondingly inserted with an upper profile member 311, and each two adjacent upper profile members 311 are inserted into each other through the upper connection block 312 to form an upper profile frame 31;
  • Each of the edges is correspondingly inserted with a lower profile member 321 , and each of the two adjacent lower profile members 321 are inserted into each other through the lower connection block 322 to form a lower profile frame 32 .
  • the upper profile member 311 and the upper connection block 312 are fixed by screws, and the lower profile member 321 and the lower connection block 322 are fixed by screws.
  • each of the upper and lower upper and lower profile members 311 and 321 has a mutual fitting structure 33.
  • the corresponding upper profile member 311 and lower profile member 321 are inserted. Together.
  • the upper profile member 311 and the lower profile member 321 that are inserted together are fixed by screws.
  • the profile frame is a four-frame, wherein the upper profile frame 31 composed of the upper profile member 311 is composed of two transversely long profile members and two longitudinally short profile members, and the lower profile member 32 composed of the lower profile members 321 is also composed of two. The root transverse length profile and the two longitudinal short profile members.
  • the lower profile frame 31 corresponding to the luminescent panel 10 and the upper profile frame 32 corresponding to the liquid crystal glazing panel 20 may be designed as the same profile frame 30 as needed.
  • the liquid crystal display device described above may be a liquid crystal display or a liquid crystal television.
  • the profile frame 30 therein is composed of an aluminum profile.
  • the mold cost is very low; the profile structure can be used to produce different lengths of products to adapt to the dimensional change of the liquid crystal glass, and the cost is almost no, and the mold maintenance is extremely low. Cost; the structure of the invention also overcomes the contradiction between the thickness of the traditional structural product and the material cost, and utilizes the natural strength and lightness of the aluminum profile to ensure excellent mechanical strength while ensuring low cost; the invention utilizes aluminum profile
  • the unique processing technology can combine the traditional rear frame and the middle frame into one, that is, the original three large parts are front, middle and rear, and become the front and rear parts, which are compact.

Description

应用于液晶显示设备中的新型背光源装置
本发明涉及液晶显示设备技术领域，特指一种重量轻、成本低、结构紧凑牢固的应用于液晶显示设备中的新型背光源装置。
传统液晶显示设备中的背光源装置结构如图1所示，其由前框、中框、后框及发光板和液晶玻璃罩板组成，前框固定液晶玻璃罩板，中框固定发光板，前框、中框、后框合起来通过螺钉固定成型，传统结构存在以下不足：其一，这种结构的前框、中框、后框均由冲压和注射成型，依赖大型模具，开发费用高昂，以32“为例，整个模具成本接近 RMB200万；其二，目前液晶玻璃生产厂商没有统一的标准，即使是单一厂商玻璃的升级换代速度极快，造成模具开发后需要不断的设变以兼容玻璃的升级，修改维护传统模具的费用巨大；其三，随着液晶电视尺寸的不断扩大，结构件的厚度和材料的成本之间的矛盾愈来愈突出，增加厚度可增加机械强度，成本和重量也是大幅增加。如何改进背光源装置结构克服以上缺陷成为有待解决的技术问题。
技术问题
本发明的目的就是针对现有技术的不足之处而提供的一种重量轻、成本低、结构紧凑牢固的应用于液晶显示设备中的新型背光源装置。
 技术解决方案
为达到上述目的，本发明包括有：设于液晶显示设备内、由显示电路控制发光的发光板和遮照在发光板上方的液晶玻璃罩板，所述发光板和所述液晶玻璃罩板的边缘对应插设有型材框。
所述液晶玻璃罩板的各个边缘均对应插接有上型材件，每两相邻上型材件通过上连接块相互插接在一起形成上型材框；所述发光板的各个边缘均对应插接有下型材件，每两相邻下型材件通过下连接块相互插接在一起形成下型材框。
所述上型材件与上连接块通过螺钉固定，所述下型材件与下连接块通过螺钉固定。
每两上下相对应的上型材件和下型材件之间具有相互嵌合结构，装配后，相对应的上型材件和下型材件插设在一起。
所述插设在一起的上型材件和下型材件通过螺钉固定。
所述发光板对应的下型材框和所述液晶玻璃罩板对应的上型材框也为设计为同一型材框。
所述液晶显示设备为液晶显示屏或液晶电视。
所述型材框为铝型材组成。
所述型材框为四边框。
 有益效果
采用上述结构后，由于可采用铝型材拼接，模具费用很低；采用型材结构可根据需要生产长短不一的产品以适应液晶玻璃的尺寸变化，几乎不会带来费用，具有极低的模具维护成本；本新型结构还克服了传统结构产品厚度和材料成本之间的矛盾，利用铝型材天然的强韧和轻巧，在保证优良的机械强度的同时还保证了低廉的成本；本新型利用铝型材的独特加工工艺，可以把传统的后框和中框合二为一，即原来的三大件前中后变为前，后两部分，结构紧凑。
附图说明
图1为传统背光源装置结构立体分解示意图。
图2为本实用新型实施例立体分解结构示意图。
图3为图2型材框的横向剖面结构示意图。
图4为图2型材框的纵向剖面结构示意图。
 本发明的最佳实施方式
现根据附图对本实用新型进行进一步详细叙述：
图1是传统背光源装置结构立体分解示意图，其由前框a、中框b、后框c及发光板10和液晶玻璃罩板20组成；
如图2本实用新型实施例中，设于液晶显示设备内、由显示电路控制发光的发光板10和遮照在发光板10上方的液晶玻璃罩板20，所述发光板10和所述液晶玻璃罩板20的边缘对应插设有型材框30。所述液晶玻璃罩板20的各个边缘均对应插接有上型材件311，每两相邻上型材件311通过上连接块312相互插接在一起形成上型材框31；所述发光板10的各个边缘均对应插接有下型材件321，每两相邻下型材件321通过下连接块322相互插接在一起形成下型材框32。所述上型材件311与上连接块312通过螺钉固定，所述下型材件321与下连接块322通过螺钉固定。
如图3和图4所示，每两上下相对应的上型材件311和下型材件321之间具有相互嵌合结构33，装配后，相对应的上型材件311和下型材件321插设在一起。所述插设在一起的上型材件311和下型材件321通过螺钉固定。所述型材框为四边框，其中的上型材件311组成的上型材框31由两根横向长型材件和两根纵向短型材件组成，而下型材件321组成的下型材框32也由两根横向长型材件和两根纵向短型材件组成。
 本发明的实施方式
另外，也可根据实际需要将所述发光板10对应的下型材框31和所述液晶玻璃罩板20对应的上型材框32设计为同一型材框30。
上述所述液晶显示设备可为液晶显示屏或液晶电视。其中的所述型材框30为铝型材组成。
 工业实用性
采用上述结构后，由于可采用铝型材拼接，模具费用很低；采用型材结构可根据需要生产长短不一的产品以适应液晶玻璃的尺寸变化，几乎不会带来费用，具有极低的模具维护成本；本发明结构还克服了传统结构产品厚度和材料成本之间的矛盾，利用铝型材天然的强韧和轻巧，在保证优良的机械强度的同时还保证了低廉的成本；本发明利用铝型材的独特加工工艺，可以把传统的后框和中框合二为一，即原来的三大件前，中，后，变为前，后两部分，结构紧凑。
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Claims (9)

  1. 应用于液晶显示设备中的新型背光源装置，包括有：设于液晶显示设备内、由显示电路控制发光的发光板和遮照在发光板上方的液晶玻璃罩板，其特征在于，所述发光板和所述液晶玻璃罩板的边缘对应插设有型材框。
  2. 根据权利要求1所述的应用于液晶显示设备中的新型背光源装置，其特征在于：所述液晶玻璃罩板的各个边缘均对应插接有上型材件，每两相邻上型材件通过上连接块相互插接在一起形成上型材框；所述发光板的各个边缘均对应插接有下型材件，每两相邻下型材件通过下连接块相互插接在一起形成下型材框。
  3. 根据权利要求2所述的应用于液晶显示设备中的新型背光源装置，其特征在于：所述上型材件与上连接块通过螺钉固定，所述下型材件与下连接块通过螺钉固定。
  4. 根据权利要求2或3所述的应用于液晶显示设备中的新型背光源装置，其特征在于：每两上下相对应的上型材件和下型材件之间具有相互嵌合结构，装配后，相对应的上型材件和下型材件插设在一起。
  5. 根据权利要求4所述的应用于液晶显示设备中的新型背光源装置，其特征在于：所述插设在一起的上型材件和下型材件通过螺钉固定。
  6. 根据权利要求1所述的应用于液晶显示设备中的新型背光源装置，其特征在于：所述发光板对应的下型材框和所述液晶玻璃罩板对应的上型材框为同一型材框。
  7. 根据权利要求1所述的应用于液晶显示设备中的新型背光源装置，其特征在于：所述液晶显示设备为液晶显示屏或液晶电视。
  8. 根据权利要求1或2或3或5或6或7所述的应用于液晶显示设备中的新型背光源装置，其特征在于：所述型材框为铝型材组成。
  9. 根据权利要求1或2或3或5或6或7所述的应用于液晶显示设备中的新型背光源装置，其特征在于：所述型材框为四边框。
PCT/CN2010/070508 2009-12-28 2010-02-04 应用于液晶显示设备中的新型背光源装置 WO2011079543A1 (zh)

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