WO2022161405A1 - Dispositif électronique et module d'affichage - Google Patents

Dispositif électronique et module d'affichage Download PDF

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Publication number
WO2022161405A1
WO2022161405A1 PCT/CN2022/074031 CN2022074031W WO2022161405A1 WO 2022161405 A1 WO2022161405 A1 WO 2022161405A1 CN 2022074031 W CN2022074031 W CN 2022074031W WO 2022161405 A1 WO2022161405 A1 WO 2022161405A1
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WO
WIPO (PCT)
Prior art keywords
nfc
display screen
display
coil
cover plate
Prior art date
Application number
PCT/CN2022/074031
Other languages
English (en)
Chinese (zh)
Inventor
杨浩
刘风
Original Assignee
维沃移动通信有限公司
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 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2022161405A1 publication Critical patent/WO2022161405A1/fr

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    • H04B5/70—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Definitions

  • the application belongs to the technical field of communication equipment, and in particular relates to an electronic equipment and a display module.
  • an electronic device is configured with a Near Field Communication (Near Field Communication, NFC) module.
  • NFC Near Field Communication
  • the NFC module enables the electronic device to have a short-range wireless communication function.
  • electronic devices can be used for payment, motion monitoring, access control, etc. Obviously, this can further expand the application scenarios of electronic devices.
  • the electronic device is equipped with a display module, and the NFC module is attached to the back of the display module (ie, the surface opposite to the display surface of the display module), thereby realizing the stacked installation of the NFC module and the display module.
  • the NFC module is attached to the back of the display module (ie, the surface opposite to the display surface of the display module), thereby realizing the stacked installation of the NFC module and the display module.
  • such an assembly structure will lead to a larger thickness of the electronic device, and thus cannot meet the requirement of developing the electronic device in a thinner direction.
  • the purpose of the embodiments of the present application is to provide an electronic device and a display module, which can solve the problem that the thickness of the current display module is relatively thick.
  • the present application discloses a display module, including an NFC module and a display screen;
  • the NFC module includes an NFC coil and an NFC ferrite
  • the display screen includes a cover plate, an insulating layer and a display screen main body, the cover plate, the insulating layer and the display screen main body are stacked in sequence, and the NFC coil is arranged on the cover plate facing the display screen main body. the surface of one side, the NFC coil is arranged in the insulating layer, and the NFC ferrite is arranged on the side of the display screen body facing away from the cover plate.
  • the present application provides an electronic device including the above display module.
  • the display module disclosed in the embodiment of the present application integrates an NFC module.
  • an insulating layer is stacked on the side of the cover plate facing away from the display direction of the display screen, and the NFC coil is deposited on the cover plate facing away from the display direction.
  • the surface of the display screen showing the direction is located in the insulating layer.
  • the NFC coil arranged in this way effectively utilizes the space in the insulating layer and does not increase the thickness of the display module.
  • the NFC coil deposited on the surface of the cover will not interfere
  • the structure of the cover plate affects the display stability of the display module.
  • FIG. 1 is a schematic diagram of a display module disclosed in an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1 in the display module disclosed in the embodiment of the present application.
  • 100-NFC module 110-NFC coil, 111-First coil end, 112-Second coil end, 120-NFC ferrite,
  • 200-display screen 210-cover plate, 210a-end outer edge, 210b-first electrode sheet, 210c-second electrode sheet, 220-insulating layer, 230-polarizing layer, 231-transparent adhesive, 240- Substrate layer, 250-protective layer, 260-touch layer, 270-encapsulation layer,
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • an embodiment of the present application discloses a display module, which includes an NFC module 100 and a display screen 200 , and the display module can be applied to an electronic device.
  • the NFC module 100 can provide NFC functions for the electronic device, and the NFC module 100 can enable the electronic device to have near field communication functions such as payment, simulated access control, contact passing, browsing, and linking.
  • the display screen 200 is used to display images.
  • the display screen 200 includes a cover plate 210, an insulating layer 220 and a display screen main body, and the cover plate 210, the insulating layer 220 and the display screen main body are stacked in sequence. Specifically, the cover plate 210, the insulating layer 220 and the display screen main body are arranged along their The thickness directions are stacked one after the other.
  • the NFC module 100 includes an NFC coil 110 and an NFC ferrite 120, wherein the NFC coil 110 is disposed on the side of the cover plate 210 facing the display screen body, and the NFC coil 110 is disposed on the surface of the cover plate 210, and the cover plate 210 is provided with One side of the NFC coil 110 is overlapped with the insulating layer 220.
  • the NFC coil 110 is located in the insulating layer 220.
  • the insulating layer 220 can protect the surface of the NFC coil 110 and the cover plate 210 facing the display main body, preventing the NFC coil 110 is short-circuited, while the NFC coil 110 is stacked on the surface of the cover plate 210, the structure of the cover plate 210 will not be changed for this purpose.
  • the structural integrity and stability of the cover plate 210 are improved, and the processing difficulty of the cover plate 210 is reduced.
  • the NFC ferrite 120 is disposed on the side of the display screen body facing away from the cover plate 210 .
  • the NFC ferrite 120 is made of a material with high magnetic permeability, and the NFC ferrite 120 can play the role of focusing magnetic flux , by increasing the magnetic field strength in the display module, the sensing distance of the NFC coil 110 is effectively increased, so that the display module has better NFC sensing performance.
  • the NFC coil 110 is disposed on the cover plate 210, and the NFC coil 110 is located in the insulating layer 220.
  • the NFC coil 110 effectively utilizes the internal space of the insulating layer 220 and does not require additional Increasing the thickness of the display module is beneficial to the lightness and thinness of the display module, and further, is conducive to the lightness and thinning of the electronic device applying the display module.
  • the NFC ferrite 120 is disposed on the side of the cover plate 210 facing away from the insulating layer 220 , and there is a certain distance between the NFC ferrite 120 and the NFC coil 110 , so as to ensure a sufficient incoming communication distance between the two.
  • the NFC coil 110 when disposing the NFC coil 110, the NFC coil 110 may be deposited on the surface of the cover plate 210 facing away from the display direction side of the display screen 200, and then the insulating layer 220 may be deposited on the cover plate 210 facing away from the display screen. In this way, the insulating layer 220 can also cover the NFC coil 110 on the surface on one side of the display direction, which further reduces the technological difficulty of the display module.
  • the main body of the display screen includes a polarizing layer 230 and a substrate layer 240.
  • the cover plate 210, the insulating layer 220, the polarizing layer 230 and the substrate layer 240 are sequentially stacked along their thickness directions.
  • the cover plate 210 It can play the role of protecting the display module, the polarizing layer 230 plays the role of polarizing light, and the insulating layer 220 and the polarizing layer 230 can be connected by a light-transmitting adhesive 231 .
  • the substrate layer 240 is the basic component of the display screen 200 , and the substrate layer 240 can carry various components for mounting the display screen 200 .
  • the layer 240 can be a glass substrate, so it can transmit light.
  • the substrate layer 240 generally includes a stacked lower glass layer and an upper glass layer.
  • the light-transmitting adhesive 231 may be an optical adhesive (Optically Clear Adhesive, OCA) layer.
  • the above-mentioned NFC coil 110 may also be disposed on opposite sides of the polarizing layer 230 in the thickness direction or on opposite sides of the substrate layer 240 in the thickness direction.
  • the NFC coil 110 when it is disposed on the polarizing layer 230, it can be arranged on the side of the polarizing layer 230 facing away from the display direction of the display screen 200 or on the side facing the display direction of the display screen 200.
  • the insulating layer 220 should also be arranged on the polarizing layer 230 facing away from the display screen. On one side of the display direction of 200 or the side facing the display direction of the display screen 200 , the insulating layer 220 also plays the role of protecting the NFC coil 110 .
  • the NFC coil 110 When the NFC coil 110 is disposed on the substrate layer 240, it can be disposed on the side of the substrate layer 240 facing away from the display direction of the display screen 200, or on the side of the substrate layer 240 facing the display direction of the display screen 200.
  • the insulating layer 220 is selectively disposed on the side of the substrate layer 240 facing away from the display direction of the display screen 200 or facing the display direction of the display screen 200 , and the insulating layer 220 should also cover the NFC coil 110 .
  • the NFC coil 110 When the NFC coil 110 is disposed on the substrate layer 240 or the polarizing layer 230 , the NFC coil 110 can also be disposed by means of deposition.
  • the insulating layer 220 is also deposited on the surface of the polarizing layer 230 or the substrate layer 240 by means of deposition. .
  • a backlight assembly is usually provided on the side of the substrate layer 240 facing away from the display direction of the display screen 200 .
  • the display screen 200 includes a display area 200a and a non-display area 200b, wherein the non-display area 200b is arranged around the display area 200a, the display area 200a can display image information, and the non-display area 200b serves as the boundary of the display screen 200, from to protect the display area 200a.
  • the display area 200a has a corresponding projection position on the cover plate 210, the projection position is the display projection, and the non-display area 200b also has a corresponding projection position on the cover plate 210, and the projection position is the non-display projection, the non-display projection
  • the projection will also be set around the display projection.
  • the NFC coil 110 can be arranged in multiple circles, and in order to reduce the influence of the NFC coil 110 on the display effect of the display screen 200 , the multi-circle NFC coil 110 should extend at the edge of the display screen 200 Specifically, a part of the NFC coil 110 is located in the non-display area 200b of the display screen 200, corresponding to the non-display projection area on the cover 210, and another part of the NFC coil 110 is located in the display area 200a of the display screen 200, and is the display area 200a
  • the position close to the non-display area 200b corresponds to the position on the cover plate 210 where the display projection is close to the non-display projection, so that the NFC coil 110 can be arranged in multiple circles while reducing the influence of the NFC coil 110 on the display effect of the display screen 200.
  • the problem of screen flicker caused by the NFC coil 110 being too close to the center of the display screen 200 can also be alleviated.
  • each circle of the NFC coil 110 arranged in multiple turns should be arranged on the same layer to avoid stacking of the NFC coil 110. .
  • the NFC coil 110 can use transparent wiring, transparent wiring.
  • the NFC coil 110 without any influence on the displayed image of the display area 200 a is beneficial to improve the screen ratio of the display screen 200 .
  • the material of the NFC coil 110 with transparent wiring can be indium tin oxide, TiAlTi or nano-silver, etc.
  • the NFC coil 110 When indium tin oxide and TiAlTi are used as the NFC coil 110, the NFC coil 110 is usually deposited by magnetron sputtering On the cover plate 210 , when nano-silver is used as the NFC coil 110 , the NFC coil 110 is usually deposited on the cover plate 210 by a solution coating method.
  • the thickness of the display module is further reduced, and correspondingly, the thickness of the insulating layer 220 can also be further reduced, thereby further reducing the overall thickness of the display module.
  • the NFC coil 110 includes a first coil end 111 adjacent to the center of the display screen 200 and a second coil end 112 adjacent to the edge of the display screen 200, so there is a certain distance between the first coil end 111 and the second coil end 112.
  • the display module of the embodiment of the present application may further include a flexible electrical connector 300 , one end of the flexible electrical connector 300 is electrically connected to the NFC coil 110, and the other end is electrically connected to the main board of the electronic device.
  • the second coil end 112 of the NFC coil 110 can be directly electrically connected to one end of the flexible electrical connector 300 because it is adjacent to the edge of the display screen 200 , while the first coil end 111 of the NFC coil 110 is connected to the display screen 200 directly.
  • the edges of the coils have a certain distance, so the first coil end 111 can be electrically connected to one end of the flexible electrical connector 300 through the bridging trace 400 .
  • the bridging wire 400 will cross over part of the NFC coil 110.
  • the surface of the bridging wire 400 can be covered with an insulating material .
  • the flexible electrical connector 300 may be a flexible circuit board.
  • the above-mentioned display screen 200 further includes a protective layer 250 , and the protective layer 250 is stacked on the side of the insulating layer 220 facing away from the cover plate 210 .
  • the bridging trace 400 will pass through the insulating layer 220 .
  • the protective layer 250 is stacked on the insulating layer 220 , the first part of the bridging trace 400 is In the insulating layer 220, the second part is in the protective layer 250, the protective layer 250 wraps the insulating layer 220 and the bridge wiring 400, and the protective layer 250 can serve the purpose of encapsulating the insulating layer 220 and the bridging wiring 400, Water vapor and oxygen are prevented from corroding the NFC coil 110 and the bridge wiring 400 , so as to achieve the purpose of protecting the NFC coil 110 and the bridge wiring 400 .
  • the protective layer 250 can be encapsulated glass of organic photoresist type.
  • one end of the cover plate 210 has an end outer edge 210a
  • the insulating layer 220 forms a first projection on the cover plate 210
  • the end outer edge 210a forms a second projection on the cover plate 210
  • the first projection and the second projection are formed on the cover plate 210.
  • the projections are coplanar on the same layer, and the first projection is located on the side of the second projection. Therefore, the above-mentioned outer edge 210a of the end portion is the part of one end edge of the cover plate 210 that extends to the side away from the center of the cover plate 210.
  • the outer edge of the end portion 210a The insulating layer 220 is not stacked.
  • a first electrode sheet 210b and a second electrode sheet 210c are fixedly connected to the surface of the outer edge 210a of the end portion facing the display direction of the display screen 200, and the outer edge 210a of the end portion provides a mounting basis for the first electrode sheet 210b and the second electrode sheet 210c, and further Easy to install.
  • the first electrode sheet 210b and the second electrode sheet 210c are electrical connectors, the NFC coil 110 is connected to the flexible electrical connector 300 through the first electrode sheet 210b and the second electrode sheet 210c, and the first electrode sheet 210b and the second electrode sheet 210c A connecting glue 600 is disposed thereon, so that the first electrode sheet 210b and the second electrode sheet 210c are connected with the flexible electrical connector 300, and then communicated with the main board of the electronic device.
  • the connecting glue 600 is more favorable for fixing the flexible electrical connector 300 , thereby making the connection with the first electrode sheet 210 b and the second electrode sheet 210 c more stable. Bending at a larger angle, so as to protect the flexible electrical connector 300 .
  • the first coil end 111 of the NFC coil 110 is connected to the first electrode sheet 210b through the bridging wire 400. Therefore, the end of the bridging wire 400 away from the first coil end 111 extends to the outer edge 210a of the end, and the NFC coil
  • the second coil end 112 of 110 is connected to the second electrode sheet 210c, and the flexible electrical connector 300 is connected to the first electrode sheet 210b and the second electrode sheet 210c at the same time, so the first electrode sheet 210b and the second electrode sheet 210c should be arranged close to each other , so that the flexible electrical connector 300 can be connected to both at the same time.
  • the distance between the first coil end 111 and the second coil end 112 should not be too large.
  • the first coil end 111 and the second coil end 112 are vertically
  • the pitch of the projections on the surface of the display screen 200 should be set smaller, so that the length of the bridge wiring 400 can be reduced, and the stability of the display module disclosed in the embodiment of the present application can be better.
  • the above-mentioned NFC coil 110, the first electrode sheet 210b and the second electrode sheet 210c are arranged on the same layer.
  • the above three can be arranged on the side of the cover plate 210 facing away from the display direction of the display screen 200, so that The redundant arrangement of the NFC coil 110 can be reduced without additionally increasing the thickness of the display module disclosed in the embodiments of the present application.
  • the buffer layer 500 is stacked on the side of the display screen body facing away from the NFC coil 110 , and the NFC ferrite 120 is stacked on the buffer layer 500 and is located on the side of the buffer layer 500 facing away from the NFC coil 110 .
  • the purpose of setting the buffer layer 500 is to protect the display screen 200 .
  • the buffer layer 500 can be made of materials with shock-absorbing and shock-absorbing functions such as shock-absorbing foam.
  • the buffer layer 500 is disposed on the side of the substrate layer 240 facing away from the NFC coil 110 , so that the NFC ferrite 120 fixed on the buffer layer 500 and the NFC coil 110 can maintain a certain spacing.
  • the display module disclosed in the embodiments of the present application may further be provided with a touch layer 260 and an encapsulation layer 270.
  • the touch layer 260 is stacked on the side of the polarizing layer 230 facing away from the cover plate 210.
  • the layer 260 can provide a touch function for the display module.
  • the encapsulation layer 270 is stacked on the side of the substrate layer 240 facing the cover plate 210 , and the function of the encapsulation layer 270 is to encapsulate the substrate layer 240 .
  • an embodiment of the present application further discloses an electronic device including the above-mentioned display module.
  • the electronic device disclosed in the embodiments of the present application may be a smart phone, a tablet computer, an e-book reader, or a wearable device.
  • the electronic device may also be other devices, which are not limited in this embodiment of the present application.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un dispositif électronique et un module d'affichage. Le module d'affichage comprend un module de communication en champ proche (NFC) et un écran d'affichage, le module NFC comprenant une bobine NFC et un corps de ferrite NFC ; l'écran d'affichage comprend une plaque de couverture, une couche isolante et un corps principal d'écran d'affichage ; la plaque de couverture, la couche isolante et le corps principal d'écran d'affichage sont empilés séquentiellement ; la bobine NFC est disposée sur la surface du côté de la plaque de recouvrement qui fait face au corps principal de l'écran d'affichage ; et la bobine NFC est située dans la couche isolante, et le corps de ferrite NFC est disposé sur le côté du corps principal de l'écran d'affichage qui est opposé à la plaque de recouvrement.
PCT/CN2022/074031 2021-01-28 2022-01-26 Dispositif électronique et module d'affichage WO2022161405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110118223.8 2021-01-28
CN202110118223.8A CN112787691A (zh) 2021-01-28 2021-01-28 电子设备及显示模组

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WO2022161405A1 true WO2022161405A1 (fr) 2022-08-04

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112927613B (zh) * 2021-01-28 2023-07-07 维沃移动通信有限公司 电子设备及显示模组
CN112787691A (zh) * 2021-01-28 2021-05-11 维沃移动通信有限公司 电子设备及显示模组
CN114464084A (zh) * 2021-06-21 2022-05-10 电子科技大学 一种智能化穿戴设备及其制备工艺
CN114464092B (zh) * 2022-02-14 2023-12-05 京东方科技集团股份有限公司 一种显示模组及其制备方法、显示装置

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KR20160059291A (ko) * 2014-11-18 2016-05-26 주식회사 에이치시티엠 디스플레이 점착층에 형성된 안테나 장치 및 그 제조방법
CN110633031A (zh) * 2019-08-08 2019-12-31 昆山龙腾光电有限公司 集成nfc天线的触摸屏及显示装置
CN110941113A (zh) * 2019-11-27 2020-03-31 上海天马微电子有限公司 显示装置及其制作方法
CN111399286A (zh) * 2020-04-30 2020-07-10 厦门天马微电子有限公司 显示装置及电子设备
CN111489647A (zh) * 2020-04-26 2020-08-04 京东方科技集团股份有限公司 显示模组及其制造方法、显示装置
CN112787691A (zh) * 2021-01-28 2021-05-11 维沃移动通信有限公司 电子设备及显示模组

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KR20160059291A (ko) * 2014-11-18 2016-05-26 주식회사 에이치시티엠 디스플레이 점착층에 형성된 안테나 장치 및 그 제조방법
CN110633031A (zh) * 2019-08-08 2019-12-31 昆山龙腾光电有限公司 集成nfc天线的触摸屏及显示装置
CN110941113A (zh) * 2019-11-27 2020-03-31 上海天马微电子有限公司 显示装置及其制作方法
CN111489647A (zh) * 2020-04-26 2020-08-04 京东方科技集团股份有限公司 显示模组及其制造方法、显示装置
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CN112787691A (zh) * 2021-01-28 2021-05-11 维沃移动通信有限公司 电子设备及显示模组

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