CN206163493U - OLED display device - Google Patents

Abstract

The utility model provides a OLED display device, includes OLED display module assembly, shielding layer and is used for NFC communication and the wireless sharing coil that charges that this shielding layer lies in between this OLED display module assembly and this the sharing coil for the screen body signal that shields in this OLED display module assembly leads to the fact the interference to this sharing coil. OLED display device that this embodiment provided communicates by letter NFC with coil and wireless charging coil preparation at same one deck, utilize NFC communication and wireless charging operation frequency and use different time, adopt the multiplexing or same coil of the multiplexing principle of timesharing sharing of frequency division, the sharing coil does not need the dismouting after setting up, no wear problem, need not to make respectively alone NFC communication and wireless charging coil on PCB or FPC, and space is saved, reduces the preparation cost, and set up the shielding layer between the coil at OLED display module assembly and sharing, the screen body signal that can effectively shield in the OLED display module assembly leads to the fact the interference to the sharing coil of top, the signal intensity of sharing coil has been guaranteed.

Description

A kind of OLED display

Technical field

The utility model is related to display technology field, more particularly to a kind of OLED display.

Background technology

At present the species of Display Technique is more, including liquid crystal display (Liquid Crystal Display, LCD) and organic Diode displaying (organic light-emitting diode, OLED) etc..That what is wherein had a great attraction is OLED Show, its have the advantages that self-luminous shows, frivolous power saving, can also be based on flexible material and make flexible display, can be by Crimp, fold or as a part for wearable device.The principle of luminosity of OLED be deposit between two electrodes it is very thin Luminous organic material, electric current is passed to luminous organic material, injected by carrier and compound and cause to light.

NFC (Near Field Communication) is the short distance wireless communication technology, and the technology allows electronic equipment Between carry out contactless Point-to-Point Data Transmission (in ten centimetres).This technology is drilled by contact-free formula RF identification (RFID) Become, and backward compatible RFID, it is mainly used in the handheld devices such as mobile phone providing the logical of M2M (Machine to Machine) Letter.Because near-field communication has natural security, therefore, NFC technique is considered as in fields such as mobile-phone payments with very big Application prospect.

With the exploitation of fast development and the various applications of the electronic equipments such as mobile phone so that people fill for the battery of mobile phone More frequently electric, traditional wired charging is very restricted for mobile phone during the journey charges, very inconvenient.So in recent years, It is more and more stronger for the demand of wireless charging (wireless charging), in August, 2010 by wireless charging alliance (WPC, Wireless Power Consor1um) unified wireless charging standard Qi has been issued, obtain at present more and more Manufacturer support and develop product so that mobile phone is provided with the function of wireless charging.Because wireless charging standard is operated in 110KHz-205KHz, needs a larger-size antenna (substantially in 30mm × 50mm) to do magnetic field induction.And the frequency of NFC Rate is 13.56MHz, and its antenna size is also than larger (also in 30mm × 50mm or so).

Current NFC communication coil and Wireless charging coil is in PCB (Printed Circuit Board, printing electricity Road plate) or FPC (Flexible Printed Circuit, FPC) on the loop construction made by metal lead wire, Then PCB the or FPC plates that this contains coil are attached on battery or shell, its major defect is：

Conventional NFC communication coil and Wireless charging coil due to being attached to battery or case surface, in the process of repeated disassembled and assembled In, easily cause abrasion；Need individually to make on PCB or FPC base materials, increase product thickness；NFC communication coil is made respectively And Wireless charging coil increases cost.

Utility model content

The purpose of this utility model is the OLED display for providing a kind of integrated NFC communication and wireless charging, to solve Certainly repeated disassembled and assembled causes coil easily abrasion and need to respectively make NFC communication coil and Wireless charging coil and cause in prior art The problems such as increasing product thickness and cost of manufacture.

The utility model embodiment provides a kind of OLED display, including OLED display modules, screen layer and is used for The shared coil of NFC communication and wireless charging, the screen layer is located between the OLED display modules and the shared coil, for shielding Cover the interference that the screen body signal in the OLED display modules is caused to the shared coil.

Further, the shared coil is made using transparent conductor material and correspondence is located at the display of the OLED display Area and/or non-display area.

Further, the shared coil is made up of ITO, Graphene or nano-silver thread.

Further, the OLED display modules include underlay substrate, image element circuit layer, first electrode layer, organic luminous layer, The second electrode lay and encapsulated layer, wherein the image element circuit layer, the first electrode layer, the organic luminous layer, the second electrode lay and The encapsulated layer is successively set on the underlay substrate.

Further, the encapsulated layer is near the screen layer, or the underlay substrate is near the screen layer.

Further, the screen layer is the whole face membrane structure by made by transparent conductor material.

Further, the screen layer is made up of Graphene.

Further, insulated substrate is provided between the screen layer and the shared coil, it is exhausted that the bridging line circle is formed in this On edge substrate.

Further, cover plate is provided with the screen layer, the shared coil is directly produced on the inner surface of the cover plate.

Further, the OLED display also includes determination module, wireless charging module and NFC communication module, should Determination module is connected with the shared coil, and the wireless charging module and the NFC communication module are connected respectively with the determination module, should Shared coil is used to receive wireless charging signal and NFC signals, and the determination module is used to judge the signal that the shared coil is received Wireless charging signal or NFC signals, the wireless charging module is used to receive radio energy, the NFC communication module be used for into Row NFC communication.

The OLED display that the utility model embodiment is provided, NFC communication coil and Wireless charging coil are produced on Same layer, it is different with wireless charging operating frequency and use time using NFC communication, using frequency dividing multiplexing or time-sharing multiplex principle Share same coil, sharing coil need not dismount after setting, without wear problem, without the need for individually on PCB or FPC respectively NFC communication and Wireless charging coil are made, save space reduces cost of manufacture, it is to avoid repeated disassembled and assembled causes in prior art Coil easily abrasion and need to respectively make NFC communication coil and Wireless charging coil and cause to increase product thickness and cost of manufacture The problems such as, and screen layer is set between OLED display modules and shared coil, can effectively shield in OLED display modules Screen body signal to share coil interfere, it is ensured that share coil signal strength signal intensity.

Description of the drawings

Fig. 1 is the cross section structure diagram of OLED display in the utility model first embodiment.

Fig. 2 is a kind of cross section structure diagram of structure of OLED display in Fig. 1.

Fig. 3 is the cross section structure diagram of another kind of structure of OLED display in Fig. 1.

Fig. 4 is the cross section structure diagram of OLED display in the utility model second embodiment.

Fig. 5 is the cross section structure diagram of OLED display in the utility model 3rd embodiment.

Fig. 6 is the planar structure schematic diagram that coil is shared in the utility model embodiment.

Fig. 7 is the operation principle block diagram that coil is shared in the utility model embodiment.

Fig. 8 is the operation principle flow chart that coil is shared in the utility model embodiment.

Fig. 9 is for NFC communication and the time diagram of wireless charging in the utility model embodiment.

Specific embodiment

Further to illustrate that the utility model is to reach technical approach and effect that predetermined utility model purpose is taken, Below in conjunction with drawings and Examples, to specific embodiment of the present utility model, structure, feature and its effect, describe in detail such as Afterwards.

Fig. 1 is the cross section structure diagram of OLED display in the utility model first embodiment, refers to Fig. 1, should OLED display includes OLED display modules 10, screen layer 20 and for NFC communication and the shared coil 30 of wireless charging, Wherein screen layer 20 is located between OLED display modules 10 and shared coil 30, for shielding the screen body in OLED display modules 10 Signal is interfered to sharing coil 30.

As shown in Figures 2 and 3, OLED display modules 10 can include underlay substrate 11, image element circuit layer 12, first electrode Layer 13, organic luminous layer 14, the second electrode lay 15 and encapsulated layer 16.Underlay substrate 11 is generally glass substrate.Image element circuit layer 12nd, first electrode layer 13, organic luminous layer 14, the second electrode lay 15 and encapsulated layer 16 are successively set on underlay substrate 11.

Image element circuit layer 12 includes the signal lead of TFT elements and correlation, and organic luminous layer 14 is arranged on first electrode layer Between 13 and the second electrode lay 15, Light-Emitting Diode is constituted by first electrode layer 13, organic luminous layer 14 and the second electrode lay 15 (OLED), each Light-Emitting Diode is driven by the display signal exported in image element circuit layer 12.First electrode layer 13 is general For transparent conductive layer.The second electrode lay 15 is generally Al, Ag, Mg or alloy.Organic luminous layer 14 generally comprises hole injection The organic function layers such as layer, luminous material layer, electron injecting layer.

Encapsulated layer 16 is generally glass back cover, and OLED display device is played a protective role.Glass back cover and underlay substrate Typically by packaging plastic (such as UV glue) encapsulation connection between 11, inner chamber the inside therein arranges image element circuit layer 12, first electrode Layer 13, organic luminous layer 14 and the second electrode lay 15.Glass back cover in encapsulated layer 16 can also be replaced using thin-film package, together Sample can play a protective role to OLED display device.

OLED display modules 10 can be divided into two kinds of situations according to the exit direction difference of light：One kind is from the side of underlay substrate 11 To emergent light, referred to as bottom illumination mode；Another kind is the direction emergent light from dorsad underlay substrate 11, referred to as pushes up illumination mode.

As shown in Fig. 2 the encapsulated layer 16 of OLED display modules 10 is near screen layer 20, OLED display modules 10 take top to send out Light mode, the light that Light-Emitting Diode sends in OLED display modules 10 is from the direction of dorsad underlay substrate 11 via the He of screen layer 20 Outgoing after shared coil 30.

As shown in figure 3, the underlay substrate 11 of OLED display modules 10 is near screen layer 20, OLED display modules 10 take bottom Illumination mode, the light that Light-Emitting Diode sends in OLED display modules 10 is from the direction of underlay substrate 11 is via screen layer 20 and shares Outgoing after coil 30.

Preferably, the shared coil 30 for NFC communication and wireless charging is transparent using ITO, Graphene, nano-silver thread etc. Conductor material is made, and shared coil 30 not only can be located at the non-display area 10b of OLED display modules 10, may be located on The viewing area 10a of OLED display modules 10, or while it is located at non-display area 10b and viewing area 10a.Adopt due to sharing coil 30 Made with transparent conductor material, even if will not also impact display effect positioned at viewing area 10a, be no longer influenced by only to arrange In the restriction of non-display area 10b, can effectively increase the area of shared coil 30, it is ensured that share the signal strength signal intensity of coil 30, and And be very beneficial for realizing the narrow frame of OLED display.

Graphene is most thin, the most hard nano material in known world, and it is almost fully transparent, is that one kind has The transparent conductor of fabulous application prospect.Nano-silver thread (silver-nanowire) technology, is to smear nano-silver thread ink material On plastic cement or glass substrate, then using radium-shine photoetching technique, portray and make with Nano grade silver wire conductive network figure The transparent conductive film of case.Nano-silver thread, due to the dimensional effect of Nano grade, is gone back in addition to the excellent electric conductivity of silver With excellent translucency, resistance to tortuosity, it is the most possible material for substituting traditional ito transparent electrode to be accordingly regarded as.

Screen layer 20 is located between OLED display modules 10 and shared coil 30.Screen layer 20 is adopted with shield effectiveness Material is made, and the Main Function of screen layer 20 is that the screen body signal shielded in OLED display modules 10 is made to the shared coil 30 of top Into interference.The coverage rate of screen layer 20 should be not less than the coverage rate of the corresponding shared coil 30 in top, preferably to shield lower section Screen body signal in OLED display modules 10 is interfered to the shared coil 30 of top.Screen layer 20 is preferably the film in whole face Structure.

Fig. 4 is the cross section structure diagram of OLED display in the utility model second embodiment, refers to Fig. 4, is shielded It is the membrane structure for being coated with the transparent conductor materials such as ITO, Graphene to cover layer 20.Screen layer 20 is made preferably by Graphene, Because the magnetic field for sharing coil 30 is easily disturbed by metal, if screen layer 20 is made using Graphene, the suction ripple of Graphene Property can preferably ensure to share the signal strength signal intensity of coil 30, make the screen body signal in OLED display modules 10 will not be to bridging line The signal of circle 30 is interfered.

Further, insulated substrate 40 is additionally provided between screen layer 20 and shared coil 30, coil 30 is shared and is formed in On insulated substrate 40, can make to be electrically insulated between screen layer 20 and shared coil 30 by insulated substrate 40, and favorably Coil 30 is shared in making on insulated substrate 40.

Fig. 5 is the cross section structure diagram of OLED display in the utility model 3rd embodiment, refers to Fig. 5, is shielded Cover and cover plate 50 is additionally provided with layer 20, to protect to sharing coil 30.Especially, sharing coil 30 can directly be produced on On the inner surface of cover plate 50, then again by inner surface make have shared coil 30 cover plate 50 fitted with screen layer 20 Connection.

Fig. 6 is that the planar structure schematic diagram of coil is shared in the utility model embodiment, as shown in fig. 6, sharing coil 30 Be with transparent conductor material (such as ITO, Graphene, nano-silver thread etc.) by multiturn cabling 301 made by cabling mode, for example with The transparent conductor materials such as ITO, Graphene, nano-silver thread make multiturn cabling 301, multiturn cabling by way of cabling coiling 301 rectangular coilings or circular coiling, can extend to viewing area 10a from non-display area 10b, and the two of cabling 301 End forms the first joint sheet 302 and the second joint sheet 303.First joint sheet 302 and the second joint sheet 303 are used for and FPC bondings Or after alternate manner is drawn, externally connected circuit.

Fig. 7 is the operation principle block diagram that coil is shared in the utility model embodiment, and Fig. 8 is in the utility model embodiment The operation principle flow chart of shared coil, incorporated by reference to shown in Fig. 7 and Fig. 8, the present embodiment can be using NFC communication and wireless charging electrician Working frequency and use time are different, carry out dividing multiplexing or time-sharing multiplex to sharing coil 30, with using coil reality simultaneously Existing NFC communication and wireless charging function.The OLED display is additionally provided with determination module 81, wireless charging module 82 and NFC and leads to Letter module 83, determination module 81 is connected with shared coil 30, wireless charging module 82 and NFC communication module 83 respectively with judgement mould Block 81 is connected (referring to Fig. 7).

Shared coil 30 is used to receive wireless charging signal and NFC signals, and it is wireless charging and NFC communication to share coil 30 Shared carrier, as needed can be used as the coil of wireless charging, it is also possible to used as the coil of NFC communication.

Determination module 81 is used to judge that the signal for sharing the reception of coil 30 is wireless charging signal or NFC signals, judges Module 81 is intelligent determination module, it is possible to determine that the function of being currently needed for completing is wireless charging or NFC communication.

When it is wireless charging signal that shared coil 30 judges currently received signal, wireless charging module 82 is used to connect Receive and share the radio energy that the transmission of coil 30 comes, and be processed into galvanic current source signal and export to enter to OLED display Row wireless charging.

When it is NFC signals that shared coil 30 judges currently received signal, NFC communication module 83 is used to carry out NFC Communication, completes the function related to NFC communication.

It is, if it is determined that module 81 judges that currently received is wireless charging signal, then shared coil 30 is received Wireless charging signal sends wireless charging module 82 to, to receive radio energy by wireless charging module 82, and is processed into steady Fixed DC power signal is exported and is charged to the rechargeable battery (not shown) of OLED display；If it is determined that module 81 is sentenced It is NFC signals to determine currently received, then the NFC signals for receiving shared coil 30 send NFC communication module 83 to, to utilize NFC module carries out near-field communication via shared coil 30 (referring to Fig. 8).

The business function that the Intelligent Recognition of determination module 81 is currently carried out, implementation has various.

For example, sharing coil 30 can adopt the principle of frequency dividing multiplexing to be operated.Due to wireless charging and the frequency of NFC Different, determination module 81 can be identified according to the frequency difference for receiving signal, judge that currently received signal is nothing Line charging signals or NFC signals.

Again for example, sharing coil 30 can adopt the principle of time-sharing multiplex to be operated.Fig. 9 is the utility model embodiment In for NFC communication and wireless charging time diagram, refer to Fig. 9, include for NFC in a period of time T First time period T1 of communication and second time period T2 for wireless charging, wherein in first time period T1, sharing coil 30 are used to transmit NFC signals, and by NFC communication module 83 near-field communication is realized；In second time period T2, sharing coil 30 is used for Transmission wireless charging signal, by wireless charging module 82 wireless charging to battery is realized.First time period T1 and the second time Section T2 is not overlapped in time.

In the above-described embodiments, it is different with wireless charging operating frequency and use time using NFC communication, it is multiple using frequency dividing With or time-sharing multiplex principle share same coil, NFC communication coil and Wireless charging coil are produced on into same layer and are shared, Shared coil need not be dismounted after setting, without wear problem, without the need for individually making on PCB or FPC NFC communication and nothing respectively Line charge coil, save space reduces cost of manufacture, it is to avoid in prior art repeated disassembled and assembled cause coil easily abrasion and NFC communication coil and Wireless charging coil need to respectively be made causes the problems such as increasing product thickness and cost of manufacture, Er Qie Screen layer is set between OLED display modules and shared coil, the screen body signal in OLED display modules can be effectively shielded to upper The shared coil of side is interfered, it is ensured that share the signal strength signal intensity of coil.

The above, is only preferred embodiment of the present utility model, not makees any formal to the utility model Restriction, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any ripe Professional and technical personnel is known, in the range of without departing from technical solutions of the utility model, when in the technology using the disclosure above Appearance is made a little change or is modified to the Equivalent embodiments of equivalent variations, as long as being without departing from technical solutions of the utility model Hold, above example is made any simple modification, equivalent variations and modification according to technical spirit of the present utility model, still Belong in the range of technical solutions of the utility model.

Claims (10)

1. a kind of OLED display, it is characterised in that including OLED display modules (10), screen layer (20) and for NFC Communication and the shared coil (30) of wireless charging, the screen layer (20) is positioned at the OLED display modules (10) and the shared coil (30) between, for shielding the interference that the screen body signal in the OLED display modules (10) is caused to the shared coil (30).

2. OLED display according to claim 1, it is characterised in that the shared coil (30) is using transparent conductor material Material is made and correspondence is positioned at the viewing area (10a) of the OLED display and/or non-display area (10b).

3. OLED display according to claim 1, it is characterised in that the shared coil (30) by ITO, Graphene or Nano-silver thread is made.

4. OLED display according to claim 1, it is characterised in that the OLED display modules (10) are including substrate base Plate (11), image element circuit layer (12), first electrode layer (13), organic luminous layer (14), the second electrode lay (15) and encapsulated layer (16), wherein the image element circuit layer (12), the first electrode layer (13), the organic luminous layer (14), the second electrode lay (15) And the encapsulated layer (16) is successively set on the underlay substrate (11).

5. OLED display according to claim 4, it is characterised in that the encapsulated layer (16) is near the screen layer , or the underlay substrate (11) is near the screen layer (20) (20).

6. OLED display according to claim 1, it is characterised in that the screen layer (20) is by transparent conductor material Made by whole face membrane structure.

7. OLED display according to claim 5, it is characterised in that the screen layer (20) is made up of Graphene.

8. OLED display according to claim 5, it is characterised in that the screen layer (20) and the shared coil (30) Between be provided with insulated substrate (40), the shared coil (30) is formed on the insulated substrate (40).

9. OLED display according to claim 1, it is characterised in that be provided with cover plate on the screen layer (20) (50), the shared coil (30) is directly produced on the inner surface of the cover plate (50).

10. the OLED display according to any one of claim 1-9, it is characterised in that the OLED display is also wrapped Determination module (81), wireless charging module (82) and NFC communication module (83) are included, the determination module (81) and the shared coil (30) it is connected, the wireless charging module (82) and the NFC communication module (83) are connected respectively with the determination module (81), this is shared For receiving wireless charging signal and NFC signals, the determination module (81) connects coil (30) for judging the shared coil (30) The signal of receipts is wireless charging signal or NFC signals, and for receiving radio energy, the NFC leads to the wireless charging module (82) Believe module (83) for carrying out NFC communication.