WO2021008294A1 - Module d'écran d'affichage à del - Google Patents

Module d'écran d'affichage à del Download PDF

Info

Publication number
WO2021008294A1
WO2021008294A1 PCT/CN2020/096704 CN2020096704W WO2021008294A1 WO 2021008294 A1 WO2021008294 A1 WO 2021008294A1 CN 2020096704 W CN2020096704 W CN 2020096704W WO 2021008294 A1 WO2021008294 A1 WO 2021008294A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
display module
led display
glue
light board
Prior art date
Application number
PCT/CN2020/096704
Other languages
English (en)
Chinese (zh)
Inventor
刘垣贤
陈文艺
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
Publication of WO2021008294A1 publication Critical patent/WO2021008294A1/fr

Links

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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings

Definitions

  • the present invention relates to the technical field of LED display screens, in particular to an LED display screen module.
  • the side wall of the bottom shell is required to be higher than the height of the glue, that is, the upper end of the side wall of the bottom
  • the glue is located in the frame structure, but for small-pitch LED display modules, especially for modules with a distance between LED lamp beads less than 4mm on the LED display module, the existing bottom shell is generally They are all made of plastic materials, and the thickness of the upper end of the side wall of the bottom shell is very thin, and cannot be molded by injection molding, that is, the frame-like structure cannot be injection molded. Therefore, the top surface of the bottom shell in the small-pitch LED display module in the prior art directly abuts the back of the light board, and there is no frame-like structure surrounding the light board.
  • the present invention provides a Outside water vapor will not enter the display module inside the module through the gap between the light board and the contact surface of the bottom shell light board and the bottom shell.
  • the display module includes: an LED display module, including a bottom shell and a light board, the back of the light board conflicts with the top surface of the bottom shell, the front of the light board is covered with a glue layer, and the top surface of the bottom shell A step is formed between the outer peripheral wall of the lamp board, and a part of the glue filling layer fills the step.
  • the outer peripheral wall of the glue potting layer is flush with the outer peripheral wall of the bottom shell.
  • a mounting hole is provided on the bottom surface of the bottom shell, a connector for connecting the light board is provided in the mounting hole, and a first potting glue is filled in the mounting hole.
  • the connecting member is a screw, and the head of the screw is wrapped in the first potting glue.
  • the length of the top surface of the bottom shell is greater than the length of the back surface of the light panel
  • the width of the top surface of the bottom shell is greater than the width of the back surface of the light panel
  • the top surface of the bottom case is provided with a first groove
  • the bottom surface of the bottom case is provided with a second groove opposite to the first groove
  • the first groove and the second groove are connected by a through hole
  • the first groove is annular and a second potting glue is potted in the first groove
  • the second potting glue is in contact with the back surface of the light board.
  • a first connecting rib is provided in the first groove, and the first connecting rib connects the two opposite inner side walls of the first groove, and there is an interval between the first connecting rib and the back surface of the light board.
  • a second connecting rib is provided in the second groove, and the second connecting rib connects the two opposite inner side walls of the second groove, and the height of the second connecting rib is smaller than the depth of the second groove.
  • the remaining part of the second potting glue is located in the second groove.
  • the number of the through holes is multiple.
  • the beneficial effect of the present invention is that after the step part is filled by the glue layer, the entrance of the gap between the top surface of the bottom shell and the back of the lamp board is blocked, and water vapor cannot enter the interior of the display module through the gap.
  • the above improves the waterproof performance of the display module, which is especially suitable for the small-pitch display module; the structure is simple, no additional parts are needed, and it is beneficial to control the manufacturing cost.
  • FIG. 1 is a cross-sectional view of a display module structure according to the first embodiment of the present invention
  • Figure 2 is an enlarged view of detail A in Figure 1;
  • FIG. 3 is a schematic structural diagram (front side) of the bottom shell in the display module structure of the first embodiment of the present invention
  • Figure 4 is an enlarged view of detail B in Figure 3;
  • FIG. 5 is a schematic structural diagram (bottom surface) of the bottom shell in the display module structure of the first embodiment of the present invention.
  • Figure 6 is an enlarged view of detail C in Figure 5.
  • the key idea of the present invention is that the length of each side of the lamp panel is smaller than the length of the corresponding sides of the bottom shell, so that a step is formed between the top surface of the bottom shell and the outer peripheral wall of the lamp panel, and the lamp panel is in contact with the bottom shell.
  • the gap of the surface is connected to the step. After a part of the potting layer fills the step, the entrance of the gap will be blocked, and water vapor cannot enter the display module through the gap.
  • an LED display module includes a bottom shell 1 and a light board 2.
  • the back of the light board 2 conflicts with the top surface of the bottom shell 1, and the front of the light board 2 is provided with a plurality of arrays.
  • LED lamp beads the front surface of the light board 2 is covered with a glue layer 3, a step 4 is formed between the top surface of the bottom shell 1 and the outer peripheral wall of the light board 2, and a part of the glue layer 3 fills the step portion 4.
  • the beneficial effect of the present invention is that after the potting layer 3 fills the step 4, the entrance of the gap between the top surface of the bottom shell 1 and the back of the lamp panel 2 is blocked, and water vapor cannot enter through the gap.
  • the waterproof performance of the display module is greatly improved, which is especially suitable for small-pitch display modules; the structure is simple, no additional parts are required, and it is beneficial to control the manufacturing cost.
  • the outer peripheral wall of the glue potting layer 3 is flush with the outer peripheral wall of the bottom shell 1.
  • the flush arrangement of the outer peripheral wall of the glue layer 3 and the outer peripheral wall of the bottom case 1 can make the glue layer 3 and the bottom case 1 smoothly transition, improve the aesthetics of the display module, and more importantly, can The thickness of the glue layer 3 located in the step portion 4 is ensured, thereby further improving the waterproof performance of the display screen module.
  • a mounting hole 5 is provided on the bottom surface of the bottom shell 1, and a connector for connecting the light board 2 is provided in the mounting hole 5, and the mounting hole 5 is filled with a first potting glue 13 .
  • the connecting member is a screw 6, and the head of the screw 6 is wrapped in the first potting glue 13.
  • locking the light board 2 with the screw 6 can improve the structural stability of the display module; the setting of the first potting glue 13 can prevent water vapor from entering the display module through the mounting hole 5, which is beneficial to ensure the display module The waterproof performance of the group.
  • the length of the top surface of the bottom shell 1 is greater than the length of the back surface of the light board 2, and the width of the top surface of the bottom shell 1 is greater than the width of the back surface of the light board 2.
  • the light board 2 is surrounded by the stepped portion 4, so that the surroundings of the light board 2 are sealed.
  • the top surface of the bottom case 1 is provided with a first groove 8, and the bottom surface of the bottom case 1 is provided with a second groove 9 opposite to the first groove 8, the first groove 8 and the second groove 8
  • the groove 9 is communicated with the through hole 10, the first groove 8 is ring-shaped and the first groove 8 is potted with a second potting glue 14, which is opposite to the back of the light board 2. contact.
  • the first groove 8 is arranged along the periphery of the lamp board 2; the second potting glue 14 flows into the first groove 8 through the second groove 9 and the through hole 10 and condenses, which can further prevent water vapor from passing through
  • the gap between the contact surface of the light board 2 and the bottom shell 1 enters the inside of the display module, which is beneficial to further improve the waterproof performance of the display module.
  • the through hole 10 also functions to provide an exhaust path for the air in the first groove 8.
  • first connecting rib 11 is provided in the first groove 8.
  • the first connecting rib 11 connects the two opposite inner side walls of the first groove 8, between the first connecting rib 11 and the back of the light board 2. With intervals.
  • the arrangement of the first connecting rib 11 can increase the structural strength of the bottom shell 1 and help ensure the structural stability of the display module; the space between the first connecting rib 11 and the light board 2 can ensure that it is liquid
  • the second potting glue 14 can flow smoothly on the back of the light board 2 to prevent glue leakage in a local area of the first groove 8 and help ensure the waterproof performance of the display module.
  • a second connecting rib 12 is provided in the second groove 9.
  • the second connecting rib 12 is connected to two opposite inner side walls of the second groove 9, and the height of the second connecting rib 12 is smaller than that of the second groove 9. depth.
  • the arrangement of the second connecting rib 12 can improve the structural strength of the bottom shell 1 and help ensure the structural stability of the display module; the height of the second connecting rib 12 is less than the depth of the second groove 9 to ensure the The liquid second potting glue 14 can flow smoothly in the second groove 9 to facilitate the self-leveling of the second potting glue 14.
  • the remaining part of the second potting glue 14 is located in the second groove 9.
  • the second potting glue 14 when the second potting glue 14 is filled in the second groove 9, it means that the through hole 10 has been completely filled by the second potting glue 14. After filling the second groove 9 with the second potting glue 14, the aesthetics of the display screen module can be improved, which is beneficial to enhance the user experience.
  • the number of the through holes 10 is multiple.
  • a plurality of through holes 10 can improve the potting efficiency of the first groove 8, reduce production time, and at the same time can accelerate the discharge of air in the first groove 8 to ensure that the potting device can
  • the first groove 8 is continuously filled with glue.
  • the first embodiment of the present invention is: please combine Figure 1 and Figure 2, an LED display module, including a bottom shell 1 and a light board 2, the back of the light board 2 and the bottom shell 1
  • the top surface of the light board 2 conflicts, the front surface of the light board 2 is covered with a glue layer 3
  • a step 4 is formed between the top surface of the bottom shell 1 and the outer peripheral wall of the light board 2, and a part of the glue layer 3 fills the step Part 4, the outer peripheral wall of the glue potting layer 3 and the outer peripheral wall of the bottom shell 1 are arranged flush.
  • the step portion 4 is annular.
  • the length of each side of the lamp panel 2 is smaller than the length of the corresponding sides of the bottom shell 1 to form the step 4, that is, the length of the top surface of the bottom shell 1 is greater than that of the back surface of the lamp panel 2.
  • the width of the top surface of the bottom shell 1 is greater than the width of the back surface of the light board 2.
  • a mounting hole 5 is provided on the bottom surface of the bottom housing 1, and a connecting piece for connecting the light board 2 is provided in the mounting hole 5.
  • the hole 5 is filled with the first potting glue 13.
  • the connecting member is a screw 6, and the head of the screw 6 is wrapped in the first potting glue 13; the lamp board 2 is provided with a nut that matches the screw 6 Column 7.
  • the top surface of the bottom case 1 is provided with a first groove 8
  • the bottom surface of the bottom case 1 is provided with the first groove 8 8 is opposite to the second groove 9
  • the first groove 8 and the second groove 9 are connected through the through hole 10
  • the first groove 8 is ring-shaped and the first groove 8 is filled with a second pot
  • the encapsulant 14 and the second encapsulant 14 are in contact with the back of the light board 2. It is easy to understand that the second groove 9 is also ring-shaped.
  • the number of the through holes 10 is multiple.
  • a first connecting rib 11 is provided in the first groove 8.
  • the first connecting rib 11 connects the two opposite inner side walls of the first groove 8, and the first connecting rib 11 and There is a gap between the back of the lamp board 2;
  • the second groove 9 is provided with a second connecting rib 12, the second connecting rib 12 connects the two opposite inner side walls of the second groove 9, and the second connecting rib 12
  • the height is smaller than the depth of the second groove 9.
  • the first connecting rib 11 is connected to the bottom surface of the first groove 8.
  • Another part of the second potting glue 14 is located in the through hole 10, and the remaining part of the second potting glue 14 is located in the second groove 9.
  • the LED display module provided by the present invention has good waterproof performance, stable structure and low manufacturing cost, and is especially suitable for small-pitch display modules.

Landscapes

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

Abstract

La présente invention concerne un module d'écran d'affichage à DEL comprenant un boîtier inférieur (1) et un panneau de lampe (2). La surface arrière du panneau de lampe (2) est en opposition par rapport à la surface supérieure du boîtier inférieur (1), la surface avant du panneau de lampe (2) est recouverte d'une couche de scellement à base de colle (3), une partie étage (4) est formée entre la surface supérieure du boîtier inférieur (1) et la paroi périphérique du panneau de lampe (2), et la partie étage (4) est remplie par une partie de la couche de scellement à base de colle (3). Le module d'écran d'affichage à DEL présente de bonnes propriétés de résistance à l'eau et est particulièrement applicable à un module d'affichage à faible écartement.
PCT/CN2020/096704 2019-07-17 2020-06-18 Module d'écran d'affichage à del WO2021008294A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201921126380.8U CN210181973U (zh) 2019-07-17 2019-07-17 一种led显示屏模组
CN2019211263808 2019-07-17

Publications (1)

Publication Number Publication Date
WO2021008294A1 true WO2021008294A1 (fr) 2021-01-21

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Application Number Title Priority Date Filing Date
PCT/CN2020/096704 WO2021008294A1 (fr) 2019-07-17 2020-06-18 Module d'écran d'affichage à del

Country Status (2)

Country Link
CN (1) CN210181973U (fr)
WO (1) WO2021008294A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113663870A (zh) * 2021-08-14 2021-11-19 尹梦梦 一种led硬灯条生产工艺

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210181973U (zh) * 2019-07-17 2020-03-24 深圳市洲明科技股份有限公司 一种led显示屏模组
CN113941474B (zh) * 2021-10-12 2023-01-10 湖南湘能智城科技有限公司 一种led户外亮化灯具生产工艺
CN115390312B (zh) * 2022-08-31 2024-04-02 京东方科技集团股份有限公司 光源模组及显示装置

Citations (7)

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Publication number Priority date Publication date Assignee Title
US20080057627A1 (en) * 2006-08-29 2008-03-06 Roger Chang Method of manufacturing a combined multilayer circuit board having embedded chips
CN103237435A (zh) * 2013-04-27 2013-08-07 信利光电(汕尾)有限公司 一种显示装置及其盖板
CN106652803A (zh) * 2017-03-03 2017-05-10 深圳市华星光电技术有限公司 超薄曲面显示装置
CN207560552U (zh) * 2017-12-18 2018-06-29 深圳市锦欣晟科技有限公司 一种高平整度底壳
CN109764289A (zh) * 2019-03-11 2019-05-17 安徽艳阳电气集团有限公司 一种便于营造夜间观看电视氛围的led吸顶灯
CN109949712A (zh) * 2019-04-13 2019-06-28 深圳市奥拓电子股份有限公司 一种led显示模组及显示屏
CN210181973U (zh) * 2019-07-17 2020-03-24 深圳市洲明科技股份有限公司 一种led显示屏模组

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080057627A1 (en) * 2006-08-29 2008-03-06 Roger Chang Method of manufacturing a combined multilayer circuit board having embedded chips
CN103237435A (zh) * 2013-04-27 2013-08-07 信利光电(汕尾)有限公司 一种显示装置及其盖板
CN106652803A (zh) * 2017-03-03 2017-05-10 深圳市华星光电技术有限公司 超薄曲面显示装置
CN207560552U (zh) * 2017-12-18 2018-06-29 深圳市锦欣晟科技有限公司 一种高平整度底壳
CN109764289A (zh) * 2019-03-11 2019-05-17 安徽艳阳电气集团有限公司 一种便于营造夜间观看电视氛围的led吸顶灯
CN109949712A (zh) * 2019-04-13 2019-06-28 深圳市奥拓电子股份有限公司 一种led显示模组及显示屏
CN210181973U (zh) * 2019-07-17 2020-03-24 深圳市洲明科技股份有限公司 一种led显示屏模组

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113663870A (zh) * 2021-08-14 2021-11-19 尹梦梦 一种led硬灯条生产工艺

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