WO2015158029A1 - 小间距led显示屏 - Google Patents

小间距led显示屏 Download PDF

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Publication number
WO2015158029A1
WO2015158029A1 PCT/CN2014/078775 CN2014078775W WO2015158029A1 WO 2015158029 A1 WO2015158029 A1 WO 2015158029A1 CN 2014078775 W CN2014078775 W CN 2014078775W WO 2015158029 A1 WO2015158029 A1 WO 2015158029A1
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WO
WIPO (PCT)
Prior art keywords
small
board
module
led display
bottom case
Prior art date
Application number
PCT/CN2014/078775
Other languages
English (en)
French (fr)
Inventor
贺金锋
马红波
李韵峰
Original Assignee
深圳市洲明科技股份有限公司
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 深圳市洲明科技股份有限公司 filed Critical 深圳市洲明科技股份有限公司
Priority to US14/379,939 priority Critical patent/US9618192B2/en
Priority to RU2014137559A priority patent/RU2621776C2/ru
Publication of WO2015158029A1 publication Critical patent/WO2015158029A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Definitions

  • the present invention relates to the field of image display devices, and more particularly to a small pitch LED display screen.
  • the display has the advantages of low power consumption, long service life, low cost, high brightness, large viewing angle and long viewing distance. It can meet the needs of various application scenarios and is recognized as the most growth potential and the fastest growing display. device.
  • the smaller the pixel pitch means the higher the pixel density per unit area, indicating that the number of pixels on the display that can participate in the edge change is higher.
  • the display area is constant, the higher the pixel density indicates the display. The higher the picture reduction of the screen, the clearer the displayed picture. If you want to show a more delicate picture, you need to make the display screen large enough to meet the full-screen pixels required for high-definition pictures.
  • the structure of the existing LED display screen is a large display panel light board directly connected to the HUB board to the computer controller, and the front side of the display screen module is a lamp body, and the reverse side is a lamp body for driving and controlling.
  • the drive control unit includes a drive IC, a capacitor, a resistor, and a pin header screw connected to the controller. Theoretically, the smaller the display screen spacing is, the more the driving electronic components are required, and the higher the density. The larger the layout of the components, the larger the area of the light board needs to be designed, which is inconvenient for the display module. Production and production will also result in low yield in the production process. If the area of the light board is set within a certain range, increasing the density of components placed on the reverse side of the light board will directly lead to an increase in production costs and maintenance costs.
  • the technical problem mainly solved by the present invention is to provide a small-pitch LED display screen with smaller pitch and high yield.
  • a technical solution adopted by the present invention is to provide a small-pitch LED display screen including a bottom case, a HUB board disposed on one side of the bottom case, and a small connection electrically connected to the HUB board on the other side.
  • the module includes a module body and a driving control unit electrically connected to the module body for driving and controlling the module body, and an adapter plate is further disposed between the small module and the HUB board.
  • the HUB board is electrically connected to the adapter board, and the drive control unit is disposed on the adapter board.
  • the invention adds an adapter plate between the HUB board and the small module, and fixedly connects the driving control unit in the small module to the adapter board, and then
  • the HUB boards are connected to each other and fixed directly to the side of the small module compared with the prior art.
  • the structure can minimize the arrangement of the driving control unit and the like on the side of the small module, thereby reducing the area of the small module. There is no need to design a larger area for the components, and the LED display can be minimized.
  • the lamp body patch and other manufacturing processes are relatively precise, the production process is relatively rigorous, and the defect rate of the small module is greatly reduced.
  • the small module greatly shortens the product development cycle, and the maintenance is convenient, and the maintenance cost of the LED display is relatively reduced compared with the prior art. Maintenance only needs to remove the faulty small module and repair it. When the fault cannot be repaired and needs to be replaced, the theoretical cost is only a small part.
  • Figure 1 is a schematic exploded view of a preferred embodiment of the present invention.
  • the present invention further provides an adapter plate 4 between the small module and the HUB board 2, the HUB board is electrically connected to the adapter board, and the drive control unit is disposed on the adapter board 4.
  • the LED display screen of the invention has smaller spacing and high yield.
  • the small-pitch LED display screen shown in FIG. 1 includes a bottom case 1, a HUB board 2 disposed on one side of the bottom case 1, and a small module electrically connected to the HUB board 2 on the other side, and the small module includes a mold.
  • the assembly body and the drive control unit for electrically driving and controlling the module body are electrically connected to the module body, and the adapter plate 4 is further disposed between the small module and the HUB board 2, and the HUB board 2 is electrically connected to the adapter board 4
  • the invention adds an adapter plate 4 between the HUB board 2 and the small module, and fixedly connects the driving control unit in the small module to the adapter board 4.
  • the driving control unit may be all or part of
  • the small module is not arranged too much, part of it is transferred to the transfer board, and then connected to the HUB board 2, which is directly fixed to the side of the small module compared with the prior art.
  • the structure can make the control module and other components be arranged on the side of the small module at least, thereby reducing the area of the small module, and the LED display screen can be minimized without having to design a larger area for the components. spacing.
  • the lamp body 32 and other manufacturing processes are relatively precise, the production process is relatively rigorous, and the defect rate of the small module is greatly reduced.
  • the small module greatly shortens the product development cycle, and is easy to maintain, and the maintenance cost of the LED display is relatively reduced compared with the prior art. Maintenance only needs to remove the faulty small module and repair it. When the fault cannot be repaired and needs to be replaced, the theoretical cost is only a small part.
  • the HUB board 2 is provided with a module pin
  • the adapter board 4 is provided with a module for the HUB board 2 Module header 3 connected to the pin header.
  • Each of the module bodies includes a PCB board 31, a plurality of lamp bodies 32 disposed on the PCB board 31, and a mask 33 disposed on the lamp body 32.
  • the lamp bodies 32 are arranged in an array on the PCB board 31, and the lampshades are strips.
  • the shape of the lamp body 32 is separately provided for each of the lamp bodies 32, the PCB board 31 is provided with a screw hole, the adapter plate 4 is provided with a connection hole 41, and the first positioning post 6 and the screw are correspondingly arranged on the connection hole 41, the first The positioning post 6 corresponds to the screw hole and fixes the PCB board 31 on the adapter board 4 by screws.
  • the PCB board 31 is further provided with a row mother.
  • the corresponding side of the adapter board 4 is provided with a row of pins, pins and rows.
  • the first positioning post 6 is a copper post, and the copper post has the advantages of easy processing, and the first positioning post 6 is connected to effectively increase the connection between the PCB board 31 and the interposer 4 for setting the driving control unit.
  • the space of the components can effectively enhance the circulation of air between the PCB board 31 and the adapter board 4, which is advantageous for heat dissipation.
  • a second screw hole is further formed on the adapter plate 4, and a corresponding second positioning post 5 is disposed on the bottom case 1, and the adapter plate 4 is The bottom case 1 is fixedly connected to the second positioning post 5 through the second screw hole.
  • the plurality of small modules 3 are four, and the four small modules 3 are spliced.
  • the connection holes 41 disposed on the adapter plate 44 are four groups, and the four groups of connection holes 41 are arranged in an array.
  • the sets of connection holes 41 correspond to the first screw holes on the PCB board 31.
  • a magnet holder 11 is further disposed on the bottom case 1, and the bottom case 1 passes through the magnet holder 11 after being fixedly connected to the bracket 7 It is adsorbed on the casing 8, and of course, a magnetic member corresponding to the magnet holder 11 can be provided on the casing 8.
  • the present invention adds an adapter plate 4 between the HUB board 2 and the small module, and fixedly connects the drive control unit in the small module to the adapter board 4, and then connects with the HUB board 2,
  • it is directly fixed on the side of the small module, and the structure can minimize the arrangement of components such as the driving control unit on the side of the small module, thereby reducing the area of the small module, and eliminating the need to arrange components.
  • the larger area of the design allows for a minimum spacing of the LED display.
  • the lamp body 32 and other manufacturing processes are relatively precise, the production process is relatively rigorous, and the defect rate of the small module is greatly reduced.
  • the first positioning post 6 and the second positioning post 5 are respectively used to space the interposer 4 and the small module and the interposer 4 from the bottom case 1 to facilitate heat dissipation.
  • the connection structure of the first positioning post 6 can also effectively increase the space for arranging the driving control unit, and furtherly, the module pin and the module row 3 are further arranged to effectively increase the internal connection, thereby avoiding chaos. Easy for future maintenance.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Led Device Packages (AREA)

Abstract

一种小间距LED显示屏，包括底壳（1）、设置在底壳（1）一侧的HUB板（2）、设置在另一侧与HUB板（2）电连接的小模组（3），所述小模组（3）包括模组本体及与模组本体电连接的用于驱动及控制模组本体的驱动控制单元，所述小模组（3）与HUB板（2）之间还设置有转接板（4），所述HUB板（2）与所述转接板（4）电连接，所述驱动控制单元设置在所述转接板（4）上。该小间距LED显示屏可以将LED显示屏做到最小间距，并且小模组不良率大大降低。

Description

小间距LED显示屏
技术领域
本发明涉及图像显示设备领域，尤其涉及一种小间距LED显示屏。
背景技术
LED 显示屏具有耗电少、使用寿命长、成本低、亮度高、视角大、可视距离远等优点，可以满足各种不同应用场景的需求，被公认为最具增长潜力也是发展最快的显示设备。对LED显示屏而言，其像素间距越小意味着单位面积内的像素密度越高，表示显示屏上可以参与边线换面的像素点数越多，当显示面积一定时，像素密度越高表明显示屏的画面还原度越高，显示的画面也就越清晰。如果要表现出比较细腻的画面就需要把显示屏做得很大才能满足高清画面所要求的整屏像素数。
现有的LED显示屏的结构均为一大块显示屏灯板直接与HUB板连接到电脑控制器上，且显示屏模组正面为灯体，反面为用于驱动及控制的灯体发光的驱动控制单元，该驱动控制单元则包括驱动IC、电容、电阻以及连接控制器的排针排母螺丝等结构。理论上当显示屏间距越小，所需的驱动电子元器件越多，密集度较高，为布置较多的元器件往往需要将灯板的面积设计较大，这样即不方便显示屏模组的制作生产同时也会在制作过程中造成良品率低下，而如果将灯板的面积设定在一定范围内，增加在灯板反面布置元器件密集度则会直接导致生产费用和维护成本的提高。
发明内容
本发明主要解决的技术问题是提供一种间距更小、良品率高的小间距LED显示屏。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种小间距LED显示屏，包括底壳、设置在底壳一侧的HUB板、设在另一侧与HUB板电连接的小模组，所述小模组包括模组本体及与模组本体电连接的用于驱动及控制模组本体的驱动控制单元，所述小模组与HUB板之间还设置有转接板，所述HUB板与所述转接板电连接，所述驱动控制单元设置在所述转接板上。
本发明的有益效果是：区别于现有技术，本发明在HUB板与小模组之间增设转接板，并将小模组中的驱动控制单元固定连接于转接板上，然后再与HUB板相连接，相比于现有技术直接将其固定在小模组侧面，该结构可使小模组的侧面上可最少的布置驱动控制单元等元器件，从而减少小模组的面积，不用再为布置元器件而特意设计的较大的面积，可以将LED显示屏做到最小间距。此外，由于该结构间距较小，灯体贴片与其他制作工艺比较精密，生产过程相对较严谨，小模组不良率会大大降低。
此外，小模组与现有结构大模组相比，极大地缩短了产品研发周期，并且维护方便、相对现有技术的LED显示屏维护成本极大降低，本发明中如果小模组故障需维修只需将有故障的小模组卸下维修即可，当故障无法维修需要更换时理论上成本只有以前很少部分。
附图说明
图1是本发明一优选实施例结构分解示意图。
标号说明：
1 、底壳；11、磁铁座；2、HUB板；3、模组排母；31、PCB板；32、灯体；33、面罩；4、转接板；41、连接孔；5、第二定位柱；6、第一定位柱；7、托架；8、箱体。
具体实施方式
为详细说明本发明的技术内容、构造特征、所实现目的及效果，以下结合实施方式并配合附图详予说明。
区别于现有技术，本发明在小模组与HUB板2之间还设置有转接板4，该HUB板与所述转接板电连接，驱动控制单元设置在转接板4上。本发明的LED显示屏间距更小、良品率高。
如图1所示小间距LED显示屏，包括底壳1、设置在底壳1一侧的HUB板2、设在在另一侧与HUB板2电连接的小模组，小模组包括模组本体及与模组本体电连接的用于驱动及控制模组本体的驱动控制单元，小模组与HUB板2之间还设置有转接板4，HUB板2与转接板4电连接，小模组为多个，该多个小模组之间拼接，驱动控制单元设置在转接板4上。
本发明在HUB板2与小模组之间增设转接板4，并将小模组中的驱动控制单元固定连接于转接板4上，当然，该驱动控制单元可以是全部也可以是一部分，在小模组布置不了太多的时候就将其一部分转而布置在转接板上，然后再与HUB板2相连接，相比于现有技术直接将其固定在小模组侧面，该结构可使小模组的侧面上可最少的布置驱动控制单元等元器件，从而减少小模组的面积，不用再为布置元器件而设计的较大的面积，可以将LED显示屏做到最小间距。此外，由于该结构间距较小，灯体32贴片与其他制作工艺比较精密，生产过程相对较严谨，小模组不良率会大大降低。
除此之外，小模组与现有结构相比，极大地缩短了产品研发周期，并且维护方便、相对现有技术的LED显示屏维护成本极大降低，本发明中如果小模组故障需维修只需将有故障的小模组卸下维修即可，当故障无法维修需要更换时理论上成本只有以前很少部分。
进一步地为增加HUB板与转接板的连接，减少走线的混乱、便于以后的维修，该HUB板2上设置有模组排针，转接板4上设置有用于与HUB板2模组排针连接的模组排母3。
每个模组本体包括PCB板31、设置在PCB板31上的若干个灯体32及罩在的灯体32上的面罩33，灯体32为阵列排布在PCB板31上，灯罩为条形或者为针对每个灯体32单独设置，该PCB板31上开设螺孔，转接板4上开设连接孔41且在连接孔41上对应设置有第一定位柱6及螺钉，该第一定位柱6与螺孔相对应并通过螺钉将PCB板31固定在转接板4上，PCB板31上还设置有排母，转接板4上对应一侧设置有排针，排针与排母连接。本实施例中，该第一定位柱6为铜柱，铜柱具有易加工等优点，采用第一定位柱6进行连接可有效增加PCB板31与转接板4之间用于设置驱动控制单元等元器件的空间，同时可有效增强空气在PCB板31与转接板4之间的流通，利于散热。
为了进一步增加转接板4与底壳1的连接强度并增强散热，在转接板4上还开设第二螺孔，底壳1上设置相对应的第二定位柱5，转接板4与底壳1通过第二螺孔与第二定位柱5固定连接。
本实施例中，该多个小模组3为四个，四个小模组3之间拼接，设置在转接板44上的连接孔41为四组，该四组连接孔41呈阵列排布且每组连接孔41与PCB板31上的第一螺孔相对应。
为便于组装好的整个装置与LED显示屏箱体8的连接，并实现快速安装及拆卸，在底壳1上还设置有磁铁座11，底壳1通过固定连接托架7后通过磁铁座11吸附在箱体8上，当然在箱体8上也可设置与磁铁座11相对应的磁性件。
综上，本发明在HUB板2与小模组之间增设转接板4，并将小模组中的驱动控制单元固定连接于转接板4上，然后再与HUB板2相连接，相比于现有技术直接将其固定在小模组侧面，该结构可使小模组的侧面上可最少的布置驱动控制单元等元器件，从而减少小模组的面积，不用再为布置元器件而设计的较大的面积，可以将LED显示屏做到最小间距。此外，由于该结构间距较小，灯体32贴片与其他制作工艺比较精密，生产过程相对较严谨，小模组不良率会大大降低。在此基础上，为增加散热效果，分别采用第一定位柱6及第二定位柱5将转接板4与小模组及转接板4与底壳1之间间隔开，在利于散热的同时采用第一定位柱6的连接结构还可有效增加布置驱动控制单元的空间，在该结构中进一步地设置模组排针及模组排母3有效增加内部的连接，避免了走线混乱，便于日后的维修。
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 (7)

1、一种小间距LED显示屏，包括底壳、设置在底壳一侧的HUB板、设在底壳另一侧与HUB板电连接的小模组，所述小模组包括模组本体及与模组本体电连接的用于驱动及控制模组本体的驱动控制单元，其特征在于，所述小模组与HUB板之间还设置有转接板，所述HUB板与所述转接板电连接，所述驱动控制单元设置在所述转接板上。
2、根据权利要求1所述的小间距LED显示屏，其特征在于：所述HUB板上设置有模组排针，所述转接板上设置有用于与HUB板模组排针连接的模组排母。
3、根据权利要求1所述的小间距LED显示屏，其特征在于：所述模组本体包括PCB板、设置在PCB板上的若干个灯体及罩在灯体上的面罩。
4、根据权利要求3所述的小间距LED显示屏，其特征在于：所述PCB板上开设第一螺孔，所述转接板上开设连接孔且在连接孔上对应设置有第一定位柱及定位针，所述第一定位柱与所述第一螺孔相对应并通过定位针将所述PCB板固定在转接板上，所述PCB板上还设置有排母，所述转接板上对应PCB板的一侧设置有排针，所述排针与所述排母连接。
5、根据权利要求1所述的小间距LED显示屏，其特征在于：所述转接板上还开设第二螺孔，所述底壳上设置有与第二螺孔相对应的第二定位柱，所述转接板与底壳通过第二螺孔与第二定位柱固定连接。
6、根据权利要求1-5任一项所述的小间距LED显示屏，其特征在于：所述小模组为四个，该四个小模组之间拼接；所述连接孔为四组，该四组连接孔呈阵列排布。
7、根据权利要求1所述的小间距LED显示屏，其特征在于：所述底壳上还设置有磁铁座。
PCT/CN2014/078775 2014-04-18 2014-05-29 小间距led显示屏 WO2015158029A1 (zh)

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