WO2012006807A1 - 背光模块及其胶框单元构造 - Google Patents

背光模块及其胶框单元构造 Download PDF

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Publication number
WO2012006807A1
WO2012006807A1 PCT/CN2010/076815 CN2010076815W WO2012006807A1 WO 2012006807 A1 WO2012006807 A1 WO 2012006807A1 CN 2010076815 W CN2010076815 W CN 2010076815W WO 2012006807 A1 WO2012006807 A1 WO 2012006807A1
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WO
WIPO (PCT)
Prior art keywords
edge
frame unit
backlight module
unit structure
frame
Prior art date
Application number
PCT/CN2010/076815
Other languages
English (en)
French (fr)
Inventor
俞刚
Original Assignee
深圳市华星光电技术有限公司
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 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 EA201270626A priority Critical patent/EA021489B1/ru
Priority to EP10854599.7A priority patent/EP2474780B1/en
Priority to BR112012014189A priority patent/BR112012014189B1/pt
Priority to US12/991,239 priority patent/US20120014137A1/en
Publication of WO2012006807A1 publication Critical patent/WO2012006807A1/zh
Priority to US13/530,886 priority patent/US8845177B2/en

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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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • 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
    • G02F2201/46—Fixing elements
    • 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 a backlight module and a frame unit structure thereof, and more particularly to a backlight module and a frame unit structure thereof which are suitable for a backlight module of different sizes and can save development cost and time.
  • LCD panels are now widely used in electronic products with growth potential such as monitors, notebooks, digital cameras and projectors. After the glass panel manufacturer produces the glass panel, it must first combine the color filter, the two are sealed and then poured into the liquid crystal, and then combined with the backlight module, the driver IC, the control circuit board and other components to form an LCD module for sale to the downstream notes. A manufacturer of computer or LCD monitors.
  • the backlight module is one of the key components of the liquid crystal display panel. Since the liquid crystal itself does not emit light, the function of the backlight module is to supply a sufficient light source with uniform brightness and uniformity to enable normal display of images.
  • the backlight module is mainly assembled by a light source, a lamp cover, a reflector (a reflector guide, a diffusion sheet, a brightness enhancement film, and an outer frame).
  • the backlight module can be divided into two types: a front light type and a back light type.
  • FIG. 1 a partial exploded view of a conventional liquid crystal module is disclosed.
  • the liquid crystal module 10 generally includes a backlight module 11 , a liquid crystal panel 12 , a front frame 13 , a plurality of first screws 14 , and a plurality of second screws 15 .
  • the backlight module 11 has a plurality of optical films 110 and a plastic frame 111.
  • the plastic frame 111 is a rectangular outer frame, and the optical film 110 is placed in the plastic frame 111.
  • the plastic frame 111 has a plurality of first threaded holes 112 formed on at least one side of the surface, and the plastic frame 111 has an upper surface and a plurality of second threaded holes 113.
  • the liquid crystal panel 12 is provided with a driving circuit board 121 on at least one side, and the driving circuit board 121 is provided with a plurality of driving A plurality of openings 122 are formed in the appropriate position.
  • the front frame 13 is a rectangular outer frame, and the front frame 13 has a plurality of assembly holes 131 formed on an upper surface thereof.
  • the liquid crystal panel 12 When assembling, the liquid crystal panel 12 is first placed on the backlight module 11, and the first screw 14 is passed through the opening 122 of the driving circuit board 121 to be screwed into the A first threaded hole 112 of a side surface of the bezel 111. Then, the front frame 13 is press-fitted onto the liquid crystal panel 12, and the second screw 15 is passed through the assembly hole 131 of the upper surface of the front frame 13 to be screwed into the lock. The second threaded hole 113 of the upper surface of the plastic frame 111 is described. In this manner, the first screw 14 and the second screw 15 can integrally assemble the backlight module 11, the liquid crystal panel 12, and the front frame 13, thereby constituting the liquid crystal module 10.
  • the above-mentioned conventional liquid crystal module 10 still has the following problems in practical assembly: As the types and sizes of the liquid crystal display panels continue to increase, the size and material of the plastic frame 111 of the backlight module 11 also increase, because A variety of different sizes of plastic frames 111 cannot be shared. Therefore, in order to produce these plastic frames 111, new molds must be continuously developed, resulting in an increase in the use of the plastic frame 111, and the development cost and time of the backlight module 10. The increase and also increase the material management complexity of the plastic frame 111.
  • a main object of the present invention is to provide a frame unit structure of a backlight module.
  • the frame unit is configured to be disposed on an edge of a back panel of the backlight module to support the liquid crystal panel and the display frame.
  • the backlight module can be adapted to different sizes of backlight modules by adjusting the number of the frame unit configurations by an adjustable modular design.
  • a secondary object of the present invention is to provide a backlight module, wherein a plurality of plastic frame unit structures and buffer strips are mounted on the edge of the back panel of the backlight module, and the adjustable plastic design only requires adjustment of the glue.
  • the frame unit structure and the number of buffer strips can form a complete plastic frame, so that in addition to reducing the use of materials, the cost and time of development of the backlight module can be saved.
  • the present invention provides a frame unit structure of a backlight module, wherein: the frame unit is configured on an edge of a back plate of a backlight module, and the frame unit has a structure The upper surface and the lower surface are fixed on the edge of the backboard, and the upper surface is used to carry a display panel and a display outer frame.
  • the length of the frame unit is shorter than the length of the edge of the backing plate.
  • the frame unit has a length that is less than one-half of the length of the edge of the backing plate.
  • the frame unit structure further includes a step portion disposed on an inner side of the upper surface, the step portion having a height lower than the upper surface, The step portion is for carrying the display panel.
  • the frame unit structure further includes a retaining wall extending downward from an outer side of the upper surface, the retaining wall being configured to abut the backing plate The outer edge of the edge.
  • a circuit board of the display panel is attached to an outer surface of the retaining wall, and a lower end of the retaining wall protrudes outward to form a hook portion, and the hook portion Auxiliary positioning of the circuit board of the display panel.
  • the lower surface is further provided with at least one fixing post downwardly for forming a corresponding engagement with at least one opening on the edge of the backboard.
  • the frame unit structure further includes a boss portion protruding from an upper surface of the frame unit structure for carrying and bonding the display frame.
  • the center of the boss portion further includes at least one fixing hole corresponding to at least one screw hole on the edge of the back plate and at least one hole of the display frame. among them
  • the at least one screw assembly is configured to fix the display frame and the frame unit to the edge of the back plate through the aperture, the fixing hole and the screw hole.
  • the boss portion is provided with a plurality of reinforcing ribs distributed around the fixing hole.
  • the reinforcing ribs form a matrix-shaped arrangement.
  • an outer surface of the retaining wall is further provided with at least two abutting protrusions to abut an inner surface of the outer frame of the display.
  • the present invention provides a backlight module, including:
  • a backing plate having a first edge, a second edge, a third edge, and a fourth edge, wherein the first edge corresponds to the third edge; the second edge corresponds to the fourth edge;
  • the backlight module further includes:
  • plastic frame unit structures respectively disposed on the second edge and the fourth edge, wherein the plastic frame unit structures each have an upper surface and a lower surface, wherein the lower surface is fixed to the back plate a second or fourth edge, wherein the upper surface is configured to carry a display panel and a display outer frame; and a plurality of buffer strips are respectively disposed on the second edge and the fourth edge, and the buffer strip is used And filling a difference in length between the frame unit structure and the second edge or the fourth edge.
  • the present invention provides a backlight module comprising:
  • the backlight module further includes:
  • the frame unit structures each have an upper surface and a lower surface, and the lower surface is used for Fixed on the first, second, third or fourth edge of the backboard, and the upper surface is used to carry a display panel and a display frame;
  • the buffer strip is configured to fill a difference in length between the frame unit structure and the first, second, third or fourth edges.
  • the length of the frame unit is shorter than the length of the first edge, the second edge, the third edge or the fourth edge.
  • FIG. 1 is a perspective exploded view of a conventional backlight module.
  • FIG. 2 is an exploded perspective view of a backlight module in accordance with a preferred embodiment of the present invention.
  • FIG. 3 is a perspective view showing the construction of a plastic frame unit of a backlight module according to a preferred embodiment of the present invention.
  • FIG. 4 is a partial cross-sectional view of a backlight module in accordance with a preferred embodiment of the present invention. detailed description
  • FIG. 2 is an exploded perspective view of a backlight module according to a preferred embodiment of the present invention.
  • a backlight module 20 mainly includes a backboard 21, a second frame strip 22, a plurality of frame unit structures 23, and a plurality of buffer strips 24, wherein the backboard 21 has a first edge 21a, a second edge 21b, and a second The third edge 21c and the fourth edge 21d, wherein the first edge 21a corresponds to the third edge 21c; the second edge 21b corresponds to the fourth edge 21d.
  • the two edges 21a-d of the backboard 21 further include the second frame strip 22, a plurality of frame unit structures 23 and a plurality of buffer strips 24.
  • the plastic frame strip 22 is disposed on the first edge 21a and the third edge 21c. Meanwhile, the plurality of plastic frame unit structures 23 and the plurality of buffer strips 24 are disposed on the second edge. 21b and the fourth edge 21d.
  • the plastic frame strip 22, the plastic frame unit structure 23 and the plurality of buffer strips 24 together form a plastic frame, and its main function is to support a display panel 40 and a display outer frame 50 upward to form a liquid crystal display ( : Please refer to Figure 4:).
  • the body of the plastic frame strip 22 is approximately in the shape of a strip and is made of a material such as engineering plastic, which can be used to support the display panel 40 and the display frame 50 upwardly as shown in FIG.
  • the body of the frame unit structure 23 is approximately elongated and made of a material such as engineering plastic.
  • the length of the frame unit configuration 23 is shorter than the length of the second edge 21b or the fourth edge 21d, for example, the length of the frame unit structure 23 is the back plate 21. Less than one-half of the length of the second edge 21b or the fourth edge 21d, such as a quarter or a fifth.
  • the length of the frame unit construction described above is not intended to limit the invention. Therefore, an appropriate number of the frame unit configurations 23, for example, three, may be disposed on the second edge 21b and the fourth edge 21d.
  • the frame strip 22, the frame unit structure 23 and the buffer strip 24 are not in the form of an integrally formed closed frame, but are manufactured separately from each other.
  • at least one of the buffer strips 24 is disposed between each of the two adjacent frame unit structures 23 or between the frame unit structure 23 and the frame strip 22 to fill the frame.
  • the role of lateral light leakage inside the backlight module 20 is described.
  • the backlight module 20 and its frame unit structure 23 of the present invention are designed by an adjustable modular design to make the frame unit structure 23 suitable for different sizes of the backlight module 20. That is, for different sizes of liquid crystal displays, as long as the number and spacing of the frame unit configurations 23 are adjusted, and the insufficient edge length portions are filled with an appropriate number of buffer strips 24, thus supporting the The display panel 40 and the display frame 50 function as shown in FIG. 4: Therefore, it is no longer necessary to develop different sizes of plastic frame molds, and therefore, in addition to reducing the use of materials, the cost of the development of the backlight module can be saved. time.
  • FIG. 3 is a partially enlarged view of FIG. 2, which is also a perspective view of a frame unit structure of a backlight module according to a preferred embodiment of the present invention.
  • the frame unit structure 23 is preferably manufactured from an engineering plastic, and can be manufactured by plastic injection molding, but is not limited thereto.
  • the detailed construction of the frame unit structure 23 is as follows:
  • the frame unit structure 23 has an upper surface 231, a lower surface 232, an inner side 233 and an outer side 234.
  • the lower surface 232 is fixed to the second edge. 21b or the fourth edge 21d.
  • the frame unit structure 23 further includes a stepped portion 235 disposed on the inner side 233 of the upper surface 231.
  • the height of the step portion 235 is higher than that of the upper portion 231.
  • Surface 231 is low and forms a stepped shape.
  • the frame unit structure 23 further includes a boss portion 236 protruding from the upper surface 231 of the frame unit structure 23 and relatively close to the outer side 234 of the upper surface 231.
  • the boss portion 236 is provided with a plurality of reinforcing ribs (not labeled:) distributed around the periphery of the at least one fixing hole 239 to strengthen the strength of the boss portion 236 and the fixing hole 239, and save material.
  • Fig. 3 discloses that the reinforcing ribs preferably form a matrix-shaped arrangement, but the invention is not limited thereto.
  • the frame unit structure 23 can include a retaining wall 237 extending downward from the outer side 234 of the upper surface 231, and the retaining wall 237 is used to abut The outer edge of the second edge 21b or the fourth edge 21d of the backboard 21.
  • the lower surface 232 of the frame unit structure 23 further protrudes downwardly from at least one fixing post 238 for an aperture on the edge of the backboard 21. 211 forms a corresponding engagement.
  • the number of the fixing posts 238 is preferably two or more to prevent the frame unit structure 23 from rotating after installation.
  • the upper surface 231 further includes the at least one fixing hole 239 corresponding to a screw hole 212 on the edge of the back plate 21 and an opening 51 of the display frame 50, wherein a screw is fixed.
  • the frame 60 can be fixed to the edge of the back plate 21 through the aperture 51, the fixing hole 239 and the screw hole 212 (FIG. 3 is the fourth edge 21 (1;).
  • the fixing hole 239 disclosed in FIG. 3 is disposed on the center of the boss portion 236. However, the present invention is not limited thereto, and the fixing hole 239 may be disposed on the frame unit structure 23. Other locations.
  • FIG. 4 is a partial cross-sectional view of a backlight module according to a preferred embodiment of the present invention.
  • the fourth edge 21d may have a different cross-sectional shape to match the frame unit structure 23 of the present invention, and the fourth edge 21d shown in FIG. 4 has a cross-sectional shape of about an inverted U shape.
  • an optical film set 30 is disposed on the fourth edge 21d, and the fixing post 238 of the plastic frame unit structure 23 passes through the fourth edge of the back plate 21 from top to bottom.
  • the retaining wall 237 of the frame unit structure 23 abuts against the outer peripheral surface of the fourth edge 21d of the back plate 21. Therefore, the frame unit structure 23 just grips the optical film group 30.
  • the step portion 235 of the frame unit configuration 23 is located on the upper surface 231 opposite the inner side 233, and the height of the step portion 235 is lower than the upper surface 231.
  • the step portion 235 is adapted to carry the display panel 40 and to limit horizontal movement of the display panel 40.
  • the display panel 40 further includes a flexible printed circuit (FPC) 41 and a circuit board 42 PCB connected to the flexible circuit board 41 on the fourth edge 21d: ).
  • the flexible circuit board 41 passes over the upper surface 231 of the frame unit structure 23 such that the circuit board 42 is approximately perpendicularly attached to the outer surface of the retaining wall 237.
  • the lower end of the retaining wall 237 preferably protrudes outward to form a hook portion 237a, which can assist in positioning the circuit board 42 of the display panel 40 to prevent the The swing of the circuit board 42.
  • the display frame 50 is sleeved on the outside of the display panel 40 and the backlight module 20.
  • the inner top surface of the display frame 50 abuts against the boss portion 236.
  • the correspondingly disposed apertures 51 of the display frame 50 and the fixing holes 239 of the frame unit structure 23 are sequentially passed through a screwing assembly 60 on the boss portion 236 :), and fixed The screw hole 212 on the fourth edge 21d of the backboard 21. Therefore, the screw assembly 60 can simultaneously combine the display frame 50, the frame unit structure 23, and the back plate 21, and simultaneously clamp and fix the display panel 40 and the optical film group. 30, to finish As a liquid crystal display assembly.
  • a buffer block (not shown) on the inner top surface or the inner top surface of the display bezel 50 may abut against the upper surface of the display panel 40 to prevent vertical movement of the display panel 40.
  • an outer surface of the retaining wall 237 is preferably further provided with at least two abutting protrusions 237b, and the at least two abutting protrusions 237b can abut an inner surface of the display outer frame 50 for locking During the screw assembly 60, it is indeed prevented that the frame unit structure 23 is unnecessarily rotated.
  • the plastic frame in the backlight module 20 is composed of the plastic frame strip 22, the plastic frame unit structure 23, and the plurality of buffer strips 24.
  • the present invention is not limited thereto.
  • the backlight of the backlight module 20 does not use the second frame strip 22, and thus the backlight module 20 may not include the Two plastic frame strips 22. That is, in this case, the plurality of frame unit configurations 23 are respectively disposed on the first edge 21a, the second edge 21b, the third edge 21c, and the fourth edge 21d, and The buffer strips 24 collectively form the frame.
  • a backlight module 20 and a bezel unit structure 23 of the present invention can be provided with an appropriate number of the frame unit structures 23 at the second edge 21b and the fourth edge 21d.
  • the backlight module 20 is designed by adopting an adjustable modular design, and only needs to adjust the number of the frame unit 23 and the buffer strip 24 to be applicable to the backlight module 20 of different sizes, thereby reducing the use of materials.
  • the cost and time of development of the backlight module 20 can also be saved.

Abstract

一种背光模块（20）及其胶框单元构造（23）。所述背光模块（20）包含一背板（21），所述背板(21）具有第一边缘（21a）、第二边缘（21b）、第三边缘（21c）及第四边缘（21d）；所述背板(21）边缘设有一胶框，所述胶框包含二胶框条（22）及多个胶框单元构造（23），所述胶框条（22）设于所述第一边缘（21a）及第三边缘（21c）；所述胶框单元构造（23）的长度短于所述第二边缘（21b）或所述第四边缘（21d）的长度，因此于所述第二边缘（21b）及所述第四边缘（21d）可设置适当数量的所述胶框单元构造（23），不足的长度部分则以数个缓冲条（24）来填补。

Description

背光模块及其胶框单元构造 技术领域
本发明涉及一种背光模块及其胶框单元构造， 特别是涉及一种适用于不 同尺寸的背光模块并可节省开发成本及时间的背光模块及其胶框单元构造。 背景技术
液晶显示器面板 (LCD panel)现已广泛应用于监视器、 笔记型电脑、 数字 相机及投影机等具成长潜力的电子产品。 LCD面板制造商在产生玻璃面板之 后， 须先结合彩色滤光片， 两者封合后灌入液晶， 再与背光模块、 驱动 IC、 控制电路板等组件共同组合成 LCD模块出售给下游的笔记型电脑或 LCD监 视器制造商。
背光模块 (Back light module)为液晶显示器面板的关键零组件之一， 由于 液晶本身不发光，背光模块的功能即在于供应充足的亮度与分布均匀的光源， 使其能正常显示影像。 背光模块主要由光源、 灯罩、 反射板 (Reflectoi^ 导光 板 (Light guide plate) 扩散片 (Diffusion sheet)、增亮膜 (Brightness enhancement film;)及外框等组件组装而成。
一般而言，背光模块可分为前光式 (Front light)与背光式 (Back light)两种， 请参照图 1所示， 其揭示一种现有的液晶模块的局部立体分解图， 其中一液 晶模块 10大致包含一背光模块 11、 一液晶面板 12、 一前框 13、 数个第一螺 丝 14及数个第二螺丝 15。所述背光模块 11具有数个光学膜片 110及一胶框 111。 所述胶框 111 是一矩形外框座， 其中所述光学膜片 110 置于所述胶框 111内。 再者， 所述胶框 111具有至少一侧表面开设有数个第一螺纹孔 112， 同时所述胶框 111 另具有一上表面开设有数个第二螺纹孔 113。 所述液晶面 板 12在至少一侧设有一驱动电路板 121，所述驱动电路板 121上设有数个驱 动集成电路芯片 (driver IQ， 并另在适当位置开设数个开孔 122。所述前框 13 是一矩形外框壳， 所述前框 13具有一上表面开设有数个组装孔 131。
在组装时， 先将所述液晶面板 12放置在所述背光模块 11上， 并利用所 述第一螺丝 14穿过所述驱动电路板 121的开孔 122， 以螺设锁付结合在所述 胶框 111的侧表面的第一螺纹孔 112。 接着， 再将所述前框 13压合在所述液 晶面板 12上， 并利用所述第二螺丝 15穿过所述前框 13 的上表面的组装孔 131， 以螺设锁付结合在所述胶框 111的上表面的第二螺纹孔 113。 如此， 所 述第一螺丝 14及第二螺丝 15即可将所述背光模块 11、 液晶面板 12及前框 13组装成一体， 而构成所述液晶模块 10。
然而，上述现有的液晶模块 10在实际组装上仍具有下述问题： 随着液晶 显示器面板的种类与尺寸不断增加，所述背光模块 11的胶框 111的尺寸与材 料也随之增加， 因为各种不同尺寸的胶框 111无法共用， 因此， 为了生产这 些胶框 111也必须不断的开发新的模具，造成所述胶框 111使用材料的增加， 以及所述背光模块 10开发成本及时间的增加，并也提高了所述胶框 111的物 料管理复杂度。
因此， 有必要提供一种背光模块及其胶框单元构造， 以解决现有技术所 存在的问题。 发明内容
本发明的主要目的是提供一种背光模块的胶框单元构造， 所述胶框单元 构造设于背光模块的背板边缘上， 向上支撑液晶面板及显示器外框。 背光模 块通过可调式模块化的设计方式， 仅需调整所述胶框单元构造的数量， 即可 以使所述胶框适用于不同尺寸的背光模块。
本发明的次要目的是提供一种背光模块， 背光模块的背板边缘上安装多 个胶框单元构造及缓冲条， 通过可调式模块化的设计方式， 仅需调整所述胶 框单元构造及缓冲条的数量， 即可构成完整的胶框， 因此除了可减少材料的 使用外， 亦可节省所述背光模块开发的成本及时间。
为达上述目的，本发明提供一种背光模块的胶框单元构造，其特征在于： 所述胶框单元构造设于一背光模块的一背板的一边缘上， 所述胶框单元构造 具有一上表面及一下表面， 所述下表面用以固设于所述背板的边缘上， 且所 述上表面用以承载一显示面板及一显示器外框。
在本发明的一实施例中， 所述胶框单元构造的长度短于所述背板的边缘 的长度。
在本发明的一实施例中， 所述胶框单元构造的长度为所述背板的边缘的 长度的二分之一以下。
在本发明的一实施例中， 所述胶框单元构造另包含一阶梯部， 设于所述 上表面的一内侧边上， 所述阶梯部的高度较所述上表面为低， 所述阶梯部用 以承载所述显示面板。
在本发明的一实施例中， 所述胶框单元构造另包含一挡墙， 由所述上表 面的一外侧边向下延伸而成， 所述挡墙用以抵靠于所述背板的边缘的一外周 面上。
在本发明的一实施例中， 所述显示面板的一电路板贴设于所述挡墙的一 外表面， 且所述挡墙的一下端向外凸伸形成一勾部， 所述勾部辅助定位所述 显示面板的电路板。
在本发明的一实施例中， 所述下表面另向下凸设至少一固定柱， 用以与 所述背板边缘上的至少一孔口形成对应卡合。
在本发明的一实施例中， 所述胶框单元构造另包含一凸台部， 凸设于所 述胶框单元构造的上表面， 用以承载及结合所述显示器外框。
在本发明的一实施例中， 所述凸台部中央另包含至少一固定孔， 其与所 述背板的边缘上的至少一螺孔及所述显示器外框的至少一孔口相对应， 其中 至少一螺固组件通过所述孔口、 固定孔及螺孔， 而将所述显示器外框及所述 胶框单元构造固定于所述背板的边缘上。
在本发明的一实施例中， 所述凸台部设有多个加强肋， 其分布在所述固 定孔的周边。 所述加强肋形成一田字型的排列。
在本发明的一实施例中， 所述挡墙的一外表面另设有至少二抵接凸部， 以抵接所述显示器外框的一内表面。
为达上述另一目的， 本发明提供一种背光模块， 其包含：
一背板， 具有第一边缘、 第二边缘、 第三边缘及第四边缘， 其中所述第 一边缘与所述第三边缘相对应； 所述第二边缘与所述第四边缘相对应；
其特征在于： 所述背光模块另包含：
二胶框条， 分别设于所述第一边缘及第三边缘；
多个胶框单元构造，其分别设于所述第二边缘及第四边缘，所述胶框单元 构造各具有一上表面及一下表面，所述下表面用以固设于所述背板的第二 或第四边缘上， 且所述上表面用以承载一显示面板及一显示器外框； 及 多个缓冲条， 其分别设于所述第二边缘及第四边缘， 所述缓冲条用以填 补所述胶框单元构造与所述第二边缘或所述第四边缘的长度差值。
为达上述再一目的， 本发明提供一种背光模块， 其包含：
一背板， 具有第一边缘、 第二边缘、 第三边缘及第四边缘， 其中所述第一 边缘与所述第三边缘相对应； 所述第二边缘与所述第四边缘相对应； 其特征在于： 所述背光模块另包含：
多个胶框单元构造， 其分别设于所述第一边缘、第二边缘、第三边缘及第 四边缘，所述胶框单元构造各具有一上表面及一下表面，所述下表面用以 固设于所述背板的第一、第二、第三或第四边缘上， 且所述上表面用以承 载一显示面板及一显示器外框； 及
多个缓冲条，其分别设于所述第一边缘、第二边缘、第三边缘及第四边缘， 所述缓冲条用以填补所述胶框单元构造与所述第一、第二、第三或第四边 缘的长度差值。
在本发明的一实施例中， 所述胶框单元构造的长度短于所述第一边缘、 第二边缘、 第三边缘或第四边缘的长度。 附图说明
图 1 : 现有一种背光模块的立体图分解图。
图 2 : 本发明较佳实施例的一种背光模块的立体分解图。
图 3 : 本发明较佳实施例的一种背光模块的胶框单元构造立体图。
图 4 : 本发明较佳实施例的一种背光模块的局部剖视图。 具体实施方式
为让本发明上述目的、 特征及优点更明显易懂， 下文特举本发明较佳实 施例， 并配合附图， 作详细说明如下：
请参照图 2所示， 图 2是本发明较佳实施例的一种背光模块的立体分解 图。 一种背光模块 20主要包含一背板 21、 二胶框条 22、 多个胶框单元构造 23及多个缓冲条 24， 其中所述背板 21具有第一边缘 21a、 第二边缘 21b、 第 三边缘 21c及第四边缘 21d， 其中所述第一边缘 21a与所述第三边缘 21c相 对应；所述第二边缘 21b与所述第四边缘 21d相对应。所述背板 21的四个边 缘 21a-d上另包含所述二胶框条 22、多个胶框单元构造 23及多个缓冲条 24。
如图 2所示， 所述胶框条 22设于所述第一边缘 21a及第三边缘 21c; 同 时， 所述多个胶框单元构造 23及多个缓冲条 24设于所述第二边缘 21b及第 四边缘 21d上。 所述胶框条 22、 所述胶框单元构造 23及所述多个缓冲条 24 共同构成一胶框， 其主要功能在于向上支撑一显示面板 40 及一显示器外框 50以组成一液晶显示器 (：请参考第 4图：)。 详细来说，所述胶框条 22的本体约呈一长条状且是由工程塑料等材料制 成， 其可用以向上支撑所述显示面板 40及显示器外框 50如图 4所示：)， 并且 通常可用以固定背光源灯管 (未绘示 )。 再者， 所述胶框单元构造 23的本体约 呈一长条状且是由工程塑料等材料制成。 在本发明中， 所述胶框单元构造 23 的长度短于所述第二边缘 21b或所述第四边缘 21 d的长度， 例如所述胶框单 元构造 23的长度为所述背板 21的第二边缘 21b或所述第四边缘 21 d的长度 的二分之一以下， 例如四分之一或五分之一等。 以上举例所述胶框单元构造 的长度并非是对本发明的限制。 因此， 于所述第二边缘 21b及第四边缘 21 d 可设置适当数量的所述胶框单元构造 23， 例如 3个。 并且， 所述胶框条 22、 胶框单元构造 23及缓冲条 24并不是一体成型的封闭框体形式， 而是彼此分 开制造的。同时，各二相邻所述胶框单元构造 23之间或是所述胶框单元构造 23与所述胶框条 22之间皆另设有至少一个所述缓冲条 24， 以填补所述胶框 单元构造 23所形成的空隙， 也就是用以填补所述胶框单元构造 23与所述第 二边缘 21b或所述第四边缘 21 d的长度差值，因此所述缓冲条 24也具有防止 所述背光模块 20内部发生侧向漏光的作用。
如图 2所示， 本发明的所述背光模块 20及其胶框单元构造 23， 是通过 可调式模块化的设计方式，以使所述胶框单元构造 23适用于不同尺寸的背光 模块 20。 也就是说， 对于不同尺寸的液晶显示器， 只要调整所述胶框单元构 造 23的数量与间隔， 且不足的边缘长度部分则以适当数量的缓冲条 24来填 补，如此就能起到支撑所述显示面板 40及显示器外框 50如图 4所示:)的作用， 故不再需要开发不同尺寸的胶框模具， 因此， 除了减少材料的使用外， 亦可 节省所述背光模块开发的成本及时间。
更进一歩来说， 请参照图 3所示， 图 3是图 2的一局部放大图， 亦是本 发明较佳实施例的一种背光模块的胶框单元构造的立体图。 所述胶框单元构 造 23优选自工程塑料， 可以塑料射出成型的方式来制造， 但不限于此， 所述 胶框单元构造 23详细的构造说明如下：
如图 3所示， 所述胶框单元构造 23具有一上表面 231、 一下表面 232、 一内侧边 233及一外侧边 234，所述下表面 232用以固设于所述第二边缘 21b 或所述第四边缘 21d上。
如图 3所示，所述胶框单元构造 23另包含一阶梯部 235，所述阶梯部 235 设于所述上表面 231的内侧边 233上， 所述阶梯部 235的高度较所述上表面 231为低， 形成一阶梯状。 另外， 所述胶框单元构造 23另包含一凸台部 236 凸设于所述胶框单元构造 23的上表面 231， 并相对靠近所述上表面 231的外 侧边 234。所述凸台部 236上优选设有多个加强肋 (未标示：)， 其分布在至少一 固定孔 239的周边， 以加强所述凸台部 236及固定孔 239的强度， 并可节省 材料。 图 3揭示所述加强肋优选的形成一田字型的排列， 但本发明并不限于 此。
再者， 所述胶框单元构造 23可包含一挡墙 237， 所述挡墙 237是由所述 上表面 231的外侧边 234向下延伸而成， 所述挡墙 237用以抵靠于所述背板 21的第二边缘 21b或第四边缘 21d的外周面上。
请同时参照图 2、 3及 4所示， 所述胶框单元构造 23的下表面 232另向 下凸设至少一的固定柱 238， 其用以与所述背板 21边缘上的一孔口 211形成 对应卡合。 所述固定柱 238的数目优选是二个或以上， 以防止所述胶框单元 构造 23安装后转动。 另外， 所述上表面 231另包含所述至少一固定孔 239， 其与所述背板 21边缘上的一螺孔 212及所述显示器外框 50的一孔口 51相对 应， 其中一螺固组件 60可通过所述孔口 51、 固定孔 239及螺孔 212， 而将所 述胶框单元构造 23固定于所述背板 21边缘 (：图 3为第四边缘 21(1；)。虽然本发 明图 3揭示的所述固定孔 239是设于所述凸台部 236中央上， 但本发明并不 限于此， 所述固定孔 239也可以是设于所述胶框单元构造 23上的其它位置。
请再参照图 4所示， 图 4是本发明较佳实施例的一种背光模块的局部剖 视图,其显示所述胶框单元构造 23设于第所述第四边缘 21d上的情形。 所述 第四边缘 21d可选择不同的断面形状以配合本发明的所述胶框单元构造 23， 图 4中显示的所述第四边缘 21d的断面形状约呈一倒 U字型。
如图 4所示，一光学膜片组 30设于所述第四边缘 21d上，所述胶框单元 构造 23的所述固定柱 238由上向下穿过所述背板 21的第四边缘 21d上的所 述孔口 211。 并且， 所述胶框单元构造 23的所述挡墙 237， 抵靠于所述背板 21 的所述第四边缘 21d的外周面上。 因此， 所述胶框单元构造 23正好夹住 所述光学膜片组 30。
另外， 所述胶框单元构造 23 的所述阶梯部 235 因位于所述上表面 231 上靠所述内侧边 233处， 并且所述阶梯部 235的高度较所述上表面 231低， 因此， 所述阶梯部 235适可承载所述显示面板 40， 并限制所述显示面板 40 的水平移动。并且，所述显示面板 40在所述第四边缘 21d上另包含一软性电 路板 (Flexible Printed Circuit, 简称 FPC)41及接设于所述软性电路板 41后的 一电路板 42 PCB：)。 所述软性电路板 41越过所述胶框单元构造 23的上表面 231， 使所述电路板 42大约垂直的贴设于所述挡墙 237的外表面上。 并且， 如图 4所示， 所述挡墙 237的下端优选向外凸伸形成一勾部 237a， 所述勾部 237a可辅助定位所述显示面板 40 的所述电路板 42， 以防止所述电路板 42 的摆动。
如图 4所示，在整个组装的最后，将所述显示器外框 50套设于所述显示 面板 40及所述背光模块 20外部。所述显示器外框 50的内顶面正好抵贴于所 述凸台部 236上。 通过一螺固组件 60依序穿过所述显示器外框 50上对应设 置的孔口 51及所述胶框单元构造 23的所述固定孔 239 位于所述凸台部 236 上：)， 并且固定于所述背板 21的所述第四边缘 21d上的所述螺孔 212。 因此， 所述螺固组件 60即可同时结合所述显示器外框 50、所述胶框单元构造 23及 所述背板 21， 并同时夹掣固定所述显示面板 40及所述光学膜片组 30， 以完 成一液晶显示器的组装。此时，所述显示器外框 50的内顶面或内顶面上的缓 冲块 (未标示：)可以抵接所述显示面板 40 的上表面， 以防止所述显示面板 40 的垂直移动。 另外， 所述挡墙 237 的一外表面优选另设有至少二抵接凸部 237b , 所述至少二抵接凸部 237b可以抵接所述显示器外框 50的一内表面， 以便在锁付所述螺固组件 60期间， 确实防止所述胶框单元构造 23发生不必 要的转动。
另外，虽然本发明较佳实施例揭示的是所述背光模块 20中所述胶框是由 所述胶框条 22、 所述胶框单元构造 23及所述多个缓冲条 24所共同构成。 但 本发明并不限于此，在本发明的另一种可能的状况中，所述背光模块 20的背 光源并不使用所述二胶框条 22， 因此所述背光模块 20可以不包含所述二胶 框条 22。 也就是说， 在此情况下所述多个胶框单元构造 23是分别设于所述 第一边缘 21a、 第二边缘 21b、 第三边缘 21c及第四边缘上 21d上， 并与所述 多个缓冲条 24共同构成所述胶框。
综上所述， 相较于现有的液晶显示器面板的种类与尺寸不断增加， 背光 模块的胶框的尺寸与材料也随之增加， 必须不断的开发新的模具而造成背光 模块开发成本及开发时间的增加。本发明的一种背光模块 20及其胶框单元构 造 23，于所述第二边缘 21b及第四边缘 21d可设置适当数量的所述胶框单元 构造 23。 所述背光模块 20是通过可调式模块化的设计方式， 仅需调整所述 胶框单元构造 23及缓冲条 24的数量， 即可适用于不同尺寸的背光模块 20， 因此除了可减少材料的使用外， 亦可节省所述背光模块 20 开发的成本及时 间。
本发明已由上述相关实施例加以描述， 然而上述实施例仅为实施本发明 的范例。 必需指出的是， 已公开的实施例并未限制本发明的范围。 相反地， 包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围 内。

Claims

权 利 要 求
1. 一种背光模块， 包含：
一背板， 具有第一边缘、 第二边缘、 第三边缘及第四边缘， 其中所述第一 边缘与所述第三边缘相对应； 所述第二边缘与所述第四边缘相对应； 其特征在于： 所述背光模块另包含：
二胶框条， 分别设于所述第一边缘及第三边缘；
多个胶框单元构造，其分别设于所述第二边缘及第四边缘，所述胶框单元 构造各具有一上表面及一下表面，所述下表面用以固设于所述背板的第二 边缘或第四边缘上， 且所述上表面用以承载一显示面板及一显示器外框； 及
多个缓冲条，其分别设于所述第二边缘及第四边缘，所述缓冲条用以填补 所述胶框单元构造与所述第二边缘或所述第四边缘的长度差值。
2. 如权利要求 1所述的背光模块，其特征在于：所述胶框单元构造的长度短 于所述第二边缘或所述第四边缘的长度。
3. 一种背光模块， 包含：
一背板， 具有第一边缘、 第二边缘、 第三边缘及第四边缘， 其中所述第一 边缘与所述第三边缘相对应； 所述第二边缘与所述第四边缘相对应； 其特征在于： 所述背光模块另包含：
多个胶框单元构造， 其分别设于所述第一边缘、第二边缘、第三边缘及第 四边缘，所述胶框单元构造各具有一上表面及一下表面，所述下表面用以 固设于所述背板的第一、第二、第三或第四边缘上， 且所述上表面用以承 载一显示面板及一显示器外框； 及
多个缓冲条，其分别设于所述第一边缘、第二边缘、第三边缘及第四边缘， 所述胶框单元构造的长度短于所述第一边缘、第二边缘、第三边缘或第四 边缘的长度， 所述缓冲条用以填补所述胶框单元构造与所述第一、 第二、 第三或第四边缘的长度差值。
4. 一种背光模块的胶框单元构造，其特征在于：所述胶框单元构造设于一背 光模块的一背板的一边缘上， 所述胶框单元构造具有一上表面及一下表 面，所述下表面用以固设于所述背板的边缘上， 且所述上表面用以承载一 显示面板及一显示器外框。
5. 如权利要求 4所述的背光模块的胶框单元构造，其特征在于：所述胶框单 元构造的长度短于所述背板的边缘的长度。
6. 如权利要求 5所述的背光模块的胶框单元构造，其特征在于：所述胶框单 元构造的长度为所述背板的边缘的长度的二分之一以下。
7. 如权利要求 4所述的背光模块的胶框单元构造，其特征在于：所述胶框单 元构造另包含一阶梯部， 设于所述上表面的一内侧边上，所述阶梯部的高 度较所述上表面为低， 所述阶梯部用以承载所述显示面板。
8. 如权利要求 4所述的背光模块的胶框单元构造，其特征在于：所述胶框单 元构造另包含一挡墙， 由所述上表面的一外侧边向下延伸而成，所述挡墙 用以抵靠于所述背板的边缘的一外周面上。
9. 如权利要求 8所述的背光模块的胶框单元构造，其特征在于：所述显示面 板的一电路板贴设于所述挡墙的一外表面，且所述挡墙的一下端向外凸伸 形成一勾部， 所述勾部辅助定位所述显示面板的电路板。
10.如权利要求 4所述的背光模块的胶框单元构造，其特征在于：所述下表面 另向下凸设至少一固定柱，用以与所述背板的边缘上的至少一孔口形成对 应卡合。
11.如权利要求 4所述的背光模块的胶框单元构造，其特征在于：所述胶框单 元构造另包含一凸台部， 凸设于所述胶框单元构造的上表面，用以承载及 结合所述显示器外框。
12.如权利要求 11所述的背光模块的胶框单元构造， 其特征在于： 所述凸台 部另包含至少一固定孔，其与所述背板的边缘上的至少一螺孔及所述显示 器外框的至少一孔口相对应，其中至少一螺固组件通过所述孔口、固定孔 及螺孔，而将所述显示器外框及所述胶框单元构造固定于所述背板的边缘 上。
如权利要求 12所述的背光模块的胶框单元构造， 其特征在于： 所述凸台 部设有多个加强肋， 其分布在所述固定孔的周边。
如权利要求 13所述的背光模块的胶框单元构造， 其特征在于： 所述加强 肋形成一田字型的排列。
如权利要求 8所述的背光模块的胶框单元构造，其特征在于：所述挡墙的 一外表面另设有至少二抵接凸部， 以抵接所述显示器外框的一内表面。
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