WO2016155354A1 - Oled touch-control substrate and fabrication method thereof, and display apparatus - Google Patents

Oled touch-control substrate and fabrication method thereof, and display apparatus Download PDF

Info

Publication number
WO2016155354A1
WO2016155354A1 PCT/CN2015/097029 CN2015097029W WO2016155354A1 WO 2016155354 A1 WO2016155354 A1 WO 2016155354A1 CN 2015097029 W CN2015097029 W CN 2015097029W WO 2016155354 A1 WO2016155354 A1 WO 2016155354A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
electrodes
control
electrode lines
electrode
Prior art date
Application number
PCT/CN2015/097029
Other languages
French (fr)
Inventor
Xiangdan DONG
Weiyun Huang
Original Assignee
Boe Technology Group Co., Ltd.
Chengdu Boe Optoelectronics Technology Co., Ltd.
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 Boe Technology Group Co., Ltd., Chengdu Boe Optoelectronics Technology Co., Ltd. filed Critical Boe Technology Group Co., Ltd.
Priority to US15/031,068 priority Critical patent/US10263051B2/en
Priority to EP15851612.0A priority patent/EP3281226B1/en
Publication of WO2016155354A1 publication Critical patent/WO2016155354A1/en

Links

Images

Classifications

    • 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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/17—Passive-matrix OLED displays
    • H10K59/179—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/60—Forming conductive regions or layers, e.g. electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/20—Changing the shape of the active layer in the devices, e.g. patterning

Definitions

  • the present invention generally relates to the field of the display technologies and, more particularly, to an OLED touch-control substrate and fabrication methods thereof, and a display apparatus.
  • OLED Organic Light-Emitting Diode
  • the basic structure of an OLED includes an anode, a cathode, and a light-emitting layer between the anode and the cathode.
  • Light-emitting of OLED is caused by the injection and combination of carriers through the anode and the cathode when an external electric field is applied on the light-emitting layer.
  • the carriers e.g., holes and electrons
  • the carriers are transported between the anode to the cathode under the electric field; and combined into exitons when the holes and the electrons meet within the light-emitting layer.
  • the exitons release energy to activate the light-emitting molecules.
  • the activated light-emitting molecules emit visible light by a radiation relaxation process.
  • OLED touch-control substrates usually formed by a plug-in architecture. That is, a touch-control screen and an OLED display are fabricated separately, and then bonded together.
  • Such a technology has many disadvantages, such as large module thickness, low light transparency and high production cost, etc.
  • the disclosed device structures, methods and systems are directed to at least partially solve one or more problems set forth above and other problems.
  • the organic light-emitting diode (OLED) touch-control substrate comprises a plurality of OLEDs, each of the OLEDs having a first electrode, a second electrode and a light-emitting layer between the first electrode and the second electrode; a plurality of first touch-control electrodes disposed in a same layer with the first electrodes and insulated from the first electrodes; and a plurality of second touch-control electrodes disposed in a same layer with the second electrodes and insulated from the second electrodes and the first touch-control electrodes.
  • the first touch-control electrodes and the second touch-control electrodes configured for realizing a touch-control function are embedded in the OLED touch-control substrate.
  • the thickness of the modules of the OLED touch-control substrate may be significantly reduced; the light transmittance may be increased; and the production cost may be reduced.
  • the organic light-emitting diode (OLED) touch-control substrate further includes a first dielectric layer disposed between the layer having the first touch-control electrodes and the first electrodes and the layer having the second touch-control electrodes and the second electrodes, having via holes at positions corresponding to the light-emitting layer.
  • a first dielectric layer disposed between the layer having the first touch-control electrodes and the first electrodes and the layer having the second touch-control electrodes and the second electrodes, having via holes at positions corresponding to the light-emitting layer.
  • the organic light-emitting diode (OLED) touch-control substrate further includes a plurality of insulation blocks disposed at cross-positions of the first touch-control electrodes.
  • one first touch-control electrode is disposed between at least two adjacent first electrode lines; and one second touch-control electrode is disposed between at least two adjacent second electrode lines
  • the OLEDs comprises passive matrix OLEDs (PMOLEDs) having a plurality of first electrode lines and second electrode lines, the first electrode lines electrically connecting the first electrodes, the second electrode lines connecting the second electrodes; the plurality of first touch-control electrodes are parallel to the plurality of first electrode lines and insulated from the plurality of the first electrode lines; and the plurality of second touch-control electrodes are parallel to the plurality of second electrode lines and insulated from the second electrode lines.
  • PMOLEDs passive matrix OLEDs
  • the OLEDs comprises active matrix OLEDs (AMOLEDs) ; the plurality of first touch-control electrodes are electrically insulated from the plurality of first electrodes of the AMOLEDs; and a plurality of second electrode of the AMOLEDs are electrically connected.
  • AMOLEDs active matrix OLEDs
  • the organic light-emitting diode (OLED) touch-control substrate further includes thin film transistors for controlling the plurality of OLEDs.
  • the organic light-emitting diode (OLED) touch-control substrate further includes gate lines connecting to gates of thin film transistors; and data lines connecting to sources of the thin film transistors.
  • the first touch-control electrodes are parallel to one of the gate lines and the data lines; and the second touch-control electrodes are parallel to the other one of the gate lines and the data lines.
  • the first electrodes are one of the anodes and the cathode; and the second electrodes are the other one of the anodes and the cathodes.
  • the first touch-control electrodes are one of the driving electrode lines and sensing electrode lines; and the second touch-control electrodes are the other one of the driving electrodes and sensing electrodes.
  • Another aspect of the present disclosures is providing a method for fabricating an OLED touch-control substrate.
  • the method comprises forming a plurality of first touch-control electrodes and a plurality of first electrodes of OLEDs insulated from the plurality of first touch-control electrodes in a same layer on a substrate; forming a light-emitting layer on the plurality of first touch-control electrodes and the plurality of first electrodes; and forming a plurality of second touch-control electrodes and a plurality of second electrodes insulated from the second touch-control electrodes in a same layer on the light-emitting layer.
  • the thicknesses of the modules of the OLED touch-control substrate fabricated by the disclosed method may be relatively small; and the light transmittance may be relatively large. Further, comparing with existing methods, the production cost may be relatively low.
  • the method further includes forming a first insulation layer having a plurality of via holes corresponding to positions of the light-emitting layer of the OLEDs on the plurality of first touch-control electrodes and the plurality of first electrodes; and forming the light-emitting layer in each of the openings.
  • the method further includes forming a plurality of insulation blocks at cross positions of the first touch-control electrodes and the second touch-control electrodes.
  • the OLEDs are passive matrix OLEDs (PMOLEDs) having a plurality of first electrode lines and second electrode lines; the plurality of first touch-control electrodes are parallel to the plurality of first electrode lines and insulated from the first electrode lines; and the plurality of second touch-control electrodes are parallel to the plurality of second electrode lines and insulated from the second electrode lines.
  • PMOLEDs passive matrix OLEDs
  • the OLEDs comprises active matrix OLEDs (AMOLEDs; the plurality of first touch-control electrodes are electrically insulated from the plurality of first electrodes; and the plurality of second electrodes are electrically connected.
  • AMOLEDs active matrix OLEDs
  • the plurality of first touch-control electrodes are electrically insulated from the plurality of first electrodes
  • the plurality of second electrodes are electrically connected.
  • the method further includes forming a plurality of thin-film transistors for controlling the plurality of OLEDs on the substrate; and forming a second insulation layer having a plurality of openings corresponding to drains of thin-film transistors connecting the drains with the first electrodes.
  • the first electrodes are one of the anodes and the cathodes; and the second electrodes are the other one of the anodes and the cathodes
  • the first touch-control electrodes are one of the driving electrodes and the sensing electrode; and the second touch-control electrodes are the other one of the anodes and the sensing electrodes.
  • the display apparatus comprises at least the disclosed OLED touch-control substrate.
  • Figure 1 illustrates an exemplary PMOLED touch-control substrate according to the disclosed embodiments
  • Figure 2 illustrates an exemplary AMOLED touch-control substrate according to the disclosed embodiments
  • Figure 3 illustrates an exemplary fabrication process of an OLED display according to the disclosed embodiments
  • Figures 4a ⁇ 4c illustrate structures corresponding to certain stages of an exemplary fabrication process of a PMOLED touch-control substrate according to the disclosed embodiments
  • Figures 5a ⁇ 5f illustrate structures corresponding to certain stages of an exemplary fabrication process of an AMOLED touch-control substrate according to the disclosed embodiments.
  • Figure 6 illustrates a block diagram of an exemplary display apparatus according to the disclosed embodiments.
  • an OLED touch-control substrate and a fabrication process thereof are provided in the present disclosure.
  • OLEDs can be categorized as Passive Matrix OLEDs (PMOLEDs) and Active Matrix OLED (AMOLEDs) .
  • PMOLEDs Passive Matrix OLEDs
  • AMOLEDs Active Matrix OLED
  • the anodes and cathodes form a matrix, and pixels in the matrix are turned on/off by a scanning mode. Each pixel is operated under a short pulse mode; and the emission of light in the PMOLEDs is a transient process with a relatively high light intensity.
  • Figure 1 illustrates the top view of an exemplary PMOLED touch-control substrate according to the disclosed embodiments.
  • the PMOLED touch-control substrate may include a plurality of OLEDs (not labeled) .
  • the plurality of OLEDs may be distributed as an array, i.e., a plurality of rows and a plurality of columns.
  • Each of the plurality of OLEDs may include a first electrode 11, a second electrode 12, and a light-emitting layer 13 between the first electrode 11 and the second electrode 12.
  • the PMOLED touch-control substrate may also include a plurality of first touch-control electrodes 14.
  • the plurality of touch-control electrodes 14 may be disposed on a same layer with the first electrodes 11.
  • the PMOLED touch-control substrate may also include a plurality of second touch-control electrodes 15.
  • the plurality of the second touch-control electrodes 15 may be disposed on a same layer with the second electrodes 12.
  • Each row or column of first electrode 11 may be electrically connected by a first electrode line 18; and each row or column of the second electrodes 12 may be electrically by a second electrode line 19.
  • the first touch-control electrodes 14 and the second touch-control electrodes 15 may be electrically insulated by any appropriate structures.
  • the PMOLED may include a first insulation layer 16 between the layer having the first electrodes 11 and the first touch-control electrodes 14 and the layer having the second electrodes 12 and the second touch-control electrodes 15; and the first insulation 16 may be used to electrically insulate the first touch-control electrodes 14 and the second touch-control electrodes 15.
  • the portions of the first insulation layer 16 corresponding to the light-emitting layers 13 may have via holes (not labeled in Figure 1) . That is, the light-emitting layers 13 may be in the via holes of the first insulation layer 16.
  • insulation blocks may be formed between portions of the first touch-control electrodes 14 and the portions of the second touch-control electrodes 15 at the cross positions of the first touch-control electrodes 14 and the second touch-control electrodes 15.
  • the first touch-control electrodes 14 and the second touch-control electrodes 15 may be electrically insulated.
  • the OLEDs may be top-emitting OLEDs, or bottom-emitting OLEDs.
  • the OLEDs may include red OLEDs, green OLEDs, or white OLEDs, etc.
  • PMOLED display may also include transport layer and shared layers, etc.
  • the first electrodes 11 may be anodes and the second electrodes 12 may be cathodes. In certain other embodiments, the first electrodes 11 may be cathodes and the second electrodes 12 may be anodes.
  • the first electrodes 11 may be close to the substrate.
  • the second electrodes 12 may be close to the substrate.
  • the first touch-control electrodes 14 may be driving electrode lines, and the second touch-control electrodes 15 may be sensing electrode lines.
  • the first touch-control electrodes 14 may be touch-control sensing electrode lines and the second touch-control electrodes 15 may be driving electrode lines.
  • the first touch-control electrodes 14 may be close to the substrate.
  • the second touch-control electrodes 15 may be close to the substrate.
  • the PMOLED may also include a plurality of first electrode lines 18, and a plurality of second electrode lines 19.
  • One first electrode line 18 may electrically connect one row, or one column of first electrodes 11; and one second electrode line 19 may electrically connect one row or one column of second electrodes 12.
  • the plurality of first touch-control electrodes 14 may be parallel to the plurality of first electrode lines 18; and the plurality of second touch-control electrodes 15 may be parallel to the plurality of second electrode lines 19.
  • first electrode lines 18 and the second electrode lines 19 corresponding to one OLED may be any appropriate value.
  • the light-emitting layer 13 of one OLED may be disposed at the cross-position of a first electrode line 18 and a second electrode line 19, as shown in Figure 1.
  • the line density of the first touch-control electrodes 14 and the second touch-control electrodes 15 may be any appropriate value.
  • one first touch-control electrode line14 may be disposed between two adjacent first electrode lines 18, or one first touch-control electrode line 14 may be disposed between two sets of first electrode lines 18; and each set of first electrode lines 18 may include a plurality of first electrode lines 18.
  • one second touch-control electrode line 15 may be disposed between two adjacent second electrode lines 19, or one second touch-control electrode line 15 may be disposed between two sets of second electrode lines 19; and each set of second electrode lines 19 may include a plurality of second electrode lines 19.
  • FIG. 2 illustrates the top view of an exemplary AMOLED touch-control substrate according to the disclosed embodiments.
  • the AMOLED touch-control substrate may include a plurality of OLEDs (not labeled) .
  • the plurality of OLEDs may be distributed as an array, i.e., a plurality of rows and a plurality of columns.
  • Each of the plurality of OLEDs may include a first electrode 11, a second electrode 12, and a light-emitting layer 13 between the first electrode 11 and the second electrode 12.
  • the AMOLED touch-control substrate may also include a plurality of first touch-control electrodes 14.
  • the plurality of touch-control electrodes 14 may be disposed on a same layer with the first electrodes 11.
  • the AMOLED touch-control substrate may also include a plurality of second touch-control electrodes 15.
  • the plurality of second touch-control electrodes 15 may be disposed on a same layer with the second electrodes 12.
  • the first touch-control electrodes 14 and the second touch-control electrodes 15 may be electrically insulated by any appropriate structures.
  • the AMOLED touch-control substrate may include a first insulation layer 16 between the layer having the first electrodes 11 and the first touch-control electrodes 14 and the layer having the second electrodes 12 and the second touch-control electrodes 15; and the first insulation layer 16 may be used to electrically insulate the first touch-control electrodes 14 and the second touch-control electrodes 15.
  • the portions of the first insulation layer 16 corresponding to the light-emitting layers 13 may have via holes (not labeled in Figure 2) . That is, the light-emitting layers 13 may be in the via holes of the first insulation layer 16.
  • insulation blocks may be formed between portions of the first touch-control electrodes 14 and the portions of the second touch-control electrodes 15 at the cross-positions of the first touch-control electrodes 14 and the second touch-control electrodes 15.
  • the first touch-control electrodes 14 and the second touch-control electrodes 15 may be electrically insulated.
  • the OLEDs may be top-emitting OLEDs, or bottom-emitting OLEDs.
  • the OLEDs may include red OLEDs, green OLEDs, or white OLEDs, etc.
  • an AMOLED display may also include transport layers and shared layers, etc.
  • the first electrodes 11 may be anodes and the second electrodes 12 may be cathodes. In certain other embodiments, the first electrodes 11 may be cathodes and the second electrodes 12 may be anodes.
  • the first electrodes 11 may be close to the substrate.
  • the second electrodes 12 may be close to the substrate.
  • the first touch-control electrodes 14 may be driving electrode lines, and the second touch-control electrodes 15 may be touch-sensing electrode lines.
  • the first touch-control electrodes 14 may be touch-sensing electrode lines and the second touch-control electrodes 15 may driving electrode lines.
  • the first touch-control electrodes 14 may be close to a substrate.
  • the second touch-control electrodes 15 may be close to a substrate.
  • the first electrodes 11 of the plurality of OLEDs may be insulated from each other; and the second electrodes 12 of the plurality of second electrodes 12 may be electrically connected.
  • the AMOLED touch-control substrate may include TFTs 20 for controlling the corresponding OLEDs.
  • the drain (not labeled) of the TFTs 20 may electrically connect with the first electrodes 11.
  • the OLEDs may be turned on or off by controlling the TFTs 20.
  • the AMOLED touch-control substrate may also include gate lines 22 and data lines 23.
  • the sources of TFTs 20 may electrically connect with the data lines 23; and the gates of the TFTs 20 may electrically connect with the gate lines 23.
  • the first touch-control electrodes 14 may be parallel to the data lines 23; and the second touch-control electrodes 15 may be parallel to the gate lines 22. In certain other embodiments, the first touch-control electrodes 14 may be parallel to the gate lines 22; and the second touch-control electrodes 15 may be parallel to the data lines 23.
  • the first touch-control electrodes 14 and the second touch-control electrodes 15 configured to realize a touch-control function may be embedded in the OLED display.
  • the thickness of the modules of the OLED touch- control substrate may be significantly reduced, the light transmittance may be increased; and the production cost may be reduced.
  • Figure 3 illustrates an exemplary fabrication process of an OLED touch-control substrate.
  • Figures 4a ⁇ 4c illustrate structures corresponding certain stages of the exemplary fabrication for forming a PMOLED touch-control substrate.
  • a plurality of first touch-control electrodes and a plurality of first electrodes of the PMOLEDs may be formed on a substrate (S101) .
  • Figure 4a illustrates a corresponding structure.
  • a substrate (not labeled) is provided; and a plurality of first touch-control electrodes 14 and a plurality of first electrode lines 18 may be formed.
  • the plurality of first touch-control electrodes 14 may be parallel to each other; and the plurality of first electrode lines 18 may be parallel to each other.
  • the dashed areas on the first electrode lines 18 may be corresponding to the first electrodes 11 of the PMOLEDs. That is, the dashed areas of the first electrode lines 18 may be configured as the first electrodes 11 of the PMOLEDs, i.e., one light-emitting layer 13 may be subsequently formed on each of the dashed regions of the first electrode lines 18.
  • one first electrode line 18 may be used to electrically connect one row of first electrodes 11, or one column of first electrodes 11. Further, the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18 may be on a same layer, i.e., a surface of the substrate.
  • the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18 may be formed by a patterning process.
  • the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18 may be formed by forming a metal layer on the surface of the substrate; and followed by patterning the metal layer.
  • the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18 may be formed by a lift-off process.
  • a first insulation layer may be formed.
  • Figure 4b illustrates a corresponding structure.
  • a first insulation layer 16 may be formed on the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18.
  • the first insulation layer 16 may have a plurality of via holes 17.
  • the portions of the first electrode lines 18 exposed by the via holes 17 may be configured as the first electrodes 11 of the PMOLEDs.
  • the via holes 17 may be used to subsequently form a light-emitting layer.
  • the light-emitting layer may be formed on the first electrodes 11.
  • the first insulation layer 16 may be formed by a patterning process. Specifically, an insulation material layer may be formed on the plurality of first touch-control electrodes 14, the plurality of first electrode lines 18 and the substrate; and followed by etching the insulation material layer to expose the portion of the first electrode lines 18 corresponding to the first electrodes 11.
  • a light-emitting layer may be formed (S102) .
  • Figure 4c illustrates a corresponding structure.
  • a light-emitting layer 13 is formed in each of the via holes 17. That is, a light-emitting layer 13 is formed on each of the first electrodes 11.
  • the light-emitting layer 13 may be formed by a patterning process. Specifically, a light-emitting material layer may be formed in the via holes 17 and on the first insulation layer 16; and followed by removing the portion of the light-emitting material layer on the first insulation layer 16. Thus, a light-emitting layer 13 is formed in each of the via holes 17, or on each of the first electrodes 11.
  • a plurality of second touch-control electrodes and a plurality of second electrode lines may be formed (S103) .
  • a corresponding structure may refer to Figure 1.
  • a plurality of second touch-control electrodes 15 and a plurality of second electrodes lines 19 are formed on the first insulation layer 16 and the light-emitting layer 13.
  • the plurality of second touch-control electrodes 15 and the plurality of second electrodes lines 19 may be on a same layer.
  • the plurality of second touch-control electrodes 15 and the plurality of second electrode lines 19 may be parallel to each other. Further, the portions of the second electrode lines 19 contacting with the light-emitting layer 13 may be referred as second electrodes 12.
  • the plurality of second touch-control electrodes 15 and the plurality of second electrodes lines 19 may be formed by a patterning process. Specifically, a second material layer may be formed on the light-emitting layer 13 and the first insulation layer 16; and followed by patterning the second material layer to form the plurality of second touch-control electrodes 15 and the plurality of second electrodes lines 19. In certain other embodiments, the plurality of second touch-control electrodes 15 and the plurality of second electrodes lines 19 may be formed by a lift-off process.
  • Figures 5a ⁇ 5f illustrate structures corresponding to certain stages of the exemplary fabrication process illustrated in Figure 3 for forming an AMOLED touch-control substrate according to the disclosed embodiments.
  • an AMOLED touch-control substrate may include TFTs 20, data lines 23, and gate lines 22. Further, the first electrodes 11 of the plurality of AMOLEDs may be electrically insulated; and the second electrodes 12 of the plurality of the AMOLEDs may be electrically connected.
  • a plurality of TFTs 20 may be formed on a substrate; and a second insulation layer may be formed on the TFTs. The portions of the second insulation layer corresponding to the drains of the TFTs 20 may have a plurality of corresponding via holes.
  • a plurality of gate lines 22 may be formed on a substrate.
  • Figure 5a illustrates a corresponding structure.
  • the plurality of gate lines 22 may be parallel to each other.
  • the plurality of gate lines 22 may be formed by a patterning process.
  • a gate dielectric layer (not shown) may be formed on the gate lines 22.
  • the gate dielectric layer may be formed by any appropriate process; and may be patterned to be configured as the gate dielectric layer of the plurality of OLEDs.
  • an active layer (not shown) may be formed on the gate dielectric layer.
  • the active layer may be formed by any appropriate processes; and may be patterned to be configured as an active layer of the plurality of OLEDs.
  • a plurality of data lines 23 may be formed on the active layer.
  • TFTs 20 may be formed.
  • Figure 5b illustrates the schematic of the TFTs 20.
  • a second insulation layer 21 may be formed on the data lines 23 and the TFTs 20.
  • the positions of the second insulation layer 21 corresponding to the drains of the TFTs 20 may have a plurality of via holes (not shown) .
  • a plurality of first touch-control electrodes 14 and first electrodes 11 of the plurality of OLEDs may be formed on the substrate.
  • the first electrodes 11 of the plurality of OLEDs may be separated.
  • the plurality of first touch-control electrodes 14 and the plurality of first electrodes 11 may be on a same layer.
  • the plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of the OLEDs may be formed by a patterning process. Specifically, a first material layer may be formed on the second insulation layer 21; and followed by patterning the first material layer. Thus, the plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of OLEDs may be formed. In certain other embodiments, the plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of OLEDs may be formed by a lift-off process.
  • a first insulation layer 16 may be formed on the plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of OLEDs.
  • the positions of the first insulation layer 16 corresponding to the subsequently formed light-emitting layer of OLEDs may have a plurality of via holes 17. That is, the first electrodes 11 may be exposed.
  • the first insulation layer 16 having the plurality of via holes 17 may be formed by a patterning process. Specifically, a first insulation material layer may be formed on the plurality of first touch-control electrodes 14, the first electrodes 11 of the plurality of OLEDs and the second insulation layer 23; and followed by etching the first insulation material layer to form the plurality of via holes 17.
  • a light-emitting layer 13 is formed in each of the via holes 17. That is, the first light-emitting layer 13 is formed on the first electrodes 11.
  • the light-emitting layer 13 may be formed by a patterning process. Specifically, a light-emitting material layer may be formed on the first electrodes 11 and a portion of the first insulation layer 16; and followed by removing the portion of the light-emitting material layer on the first insulation layer 16. Thus, the light-emitting layer 13 may be formed on each of the first electrodes 11.
  • a plurality of second touch-control electrodes 15 and second electrodes 12 of the plurality of OLEDs may be formed on the first insulation layer 16 and the light-emitting layer 13.
  • a corresponding structure is illustrated in Figure 2.
  • the plurality of second electrodes 12 of the OLEDs may be electrically connected.
  • the plurality of second touch-control electrodes 15 and the second electrodes 12 may be formed on a same layer.
  • the plurality of second touch-control electrodes 15 and the second electrodes 12 of the plurality of OLEDs may be formed by a patterning process. Specifically, a second material layer may be formed on the first insulation layer 16 and the light-emitting layer 13 and followed by patterning the second material. Thus, the plurality of second touch-control electrodes 15 and the second electrodes 12 of the plurality of OLEDs may be formed. In certain other embodiments, the plurality of second touch-control electrodes 15 and the second electrodes 12 of the plurality of OLEDs may be formed by a lift-off process.
  • the TFTs 20 may be bottom-gated TFTs. In certain other embodiments, the TFTs 20 may be top-gated TFTs. The TFTs 20 may be used to control the light-emitting of the OLEDs.
  • the module thickness of the OLED touch-control substrate formed by the disclosed methods may be relatively small, and the light transmittance may be relatively high. Further, because the first touch-control electrodes and the first electrodes of the OLEDs may be made of a same material; and the second touch-control electrodes and the second electrode may be made of a same material, it may not need extra masks and patterning processes. Thus, the production cost may be relatively low.
  • a display apparatus is provided.
  • Figure 6 illustrates an exemplary display apparatus 400 incorporating at least a disclosed OLED touch-control substrate and other aspects of the present disclosure.
  • the display device 400 may be any appropriate device, panel or component with certain display function, such as an OLED panel, an OLED TV, an OLED monitor, an OLED cell phone, an OLED navigation system, or e-paper, etc.
  • the display apparatus 400 includes a controller 402, a driver circuit 404, a memory 406, peripherals 408, and an OLED touch-control substrate 410. Certain devices may be omitted and other devices may be included.
  • the controller 402 may include any appropriate processor or processors. Further, the controller 402 can include multiple cores for multi-thread or parallel processing.
  • the memory 406 may include any appropriate memory modules. The memory 406 may store computer programs for implementing various processes, when executed by the controller 402.
  • Peripherals 408 may include any interface devices for providing various signal interfaces. Further, peripherals 408 may include any input and output (I/O) devices. Peripherals 408 may also include any appropriate communication module for establishing connections through wired or wireless communication networks.
  • the driver circuitry 404 may include any appropriate driving circuits to drive the OLED touch-control substrate 410.
  • the OLED touch-control substrate 410 may be provided with image signals by the controller 402 and the driver circuit 404 for display. Because the module thickness of the disclosed OLED touch-control substrate be relatively small, the light-transmittance may be relative high; and the production cost may be reduced, the display apparatus having such a OLED touch-control substrate may also have similar advantages.

Abstract

An organic light-emitting diode (OLED) touch-control substrate, a fabrication method thereof, and a display apparatus are provided. The organic light-emitting diode (OLED) touch-control substrate comprises a plurality of OLEDs, each of the OLEDs having a first electrode (11), a second electrode (12) and a light-emitting layer (13) between the first electrode (11) and the second electrode (12); a plurality of first touch-control electrodes (14) disposed in the same layer with the first electrodes (11) and insulated from the first electrodes (11); and a plurality of second touch-control electrodes (15) disposed in the same layer with the second electrodes (12) and insulated from the second electrodes (12) and the first touch-control electrodes (14).

Description

OLED TOUCH-CONTROL SUBSTRATE AND FABRICATION METHOD THEREOF, AND DISPLAY APPARATUS
CROSS-REFERENCES TO RELATED APPLICATIONS
This PCT patent application claims priority of Chinese Patent Application No. 201510144816.6, filed on March 30, 2015, the entire contents of which are incorporated by reference herein.
FIELD OF THE INVENTION
The present invention generally relates to the field of the display technologies and, more particularly, to an OLED touch-control substrate and fabrication methods thereof, and a display apparatus.
BACKGROUND
Organic Light-Emitting Diode (OLED) displays have many advantages, including ultra-thin, light weight, low cost, wide viewing-angle, self-emitting, continuously adjustable emitting color, fast response speed, low driving voltage, low power-consumption, broad working temperature range, simple manufacturing process, high light-emitting efficiency, and flexible display, etc. Thus, the OLED has become a new generation of display device technology.
The basic structure of an OLED includes an anode, a cathode, and a light-emitting layer between the anode and the cathode. Light-emitting of OLED is caused by the injection and combination of carriers through the anode and the cathode when an external electric field is applied on the light-emitting layer. Specifically, the carriers, e.g., holes and electrons, are transported between the anode to the cathode under the electric field； and combined into exitons when the holes and the electrons meet within the light-emitting layer. The exitons release energy to activate the light-emitting molecules. Then, the activated light-emitting molecules emit visible light by a radiation relaxation process.
In the existing display technologies, OLED touch-control substrates usually formed by a plug-in architecture. That is, a touch-control screen and an OLED display are fabricated separately, and then bonded together. Such a technology has many disadvantages, such as large module thickness, low light transparency and high production cost, etc.
The disclosed device structures, methods and systems are directed to at least partially solve one or more problems set forth above and other problems.
BRIEF SUMMARY OF THE DISCLOSURE
One aspect of the present disclosure includes providing an organic light-emitting diode (OLED) touch-control substrate and a fabrication method thereof. The organic light-emitting diode (OLED) touch-control substrate comprises a plurality of OLEDs, each of the OLEDs having a first electrode, a second electrode and a light-emitting layer between the first electrode and the second electrode； a plurality of first touch-control electrodes disposed in a same layer with the first electrodes and insulated from the first electrodes； and a plurality of second touch-control electrodes disposed in a same layer with the second electrodes and insulated from the second electrodes and the first touch-control electrodes.
The first touch-control electrodes and the second touch-control electrodes configured for realizing a touch-control function are embedded in the OLED touch-control substrate. Thus, the thickness of the modules of the OLED touch-control substrate may be significantly reduced； the light transmittance may be increased； and the production cost may be reduced.
Optionally, the organic light-emitting diode (OLED) touch-control substrate further includes a first dielectric layer disposed between the layer having the first touch-control electrodes and the first electrodes and the layer having the second touch-control electrodes and the second electrodes, having via holes at positions corresponding to the light-emitting layer.
Optionally, the organic light-emitting diode (OLED) touch-control substrate further includes a plurality of insulation blocks disposed at cross-positions of the first touch-control electrodes.
Optionally, one first touch-control electrode is disposed between at least two adjacent first electrode lines； and one second touch-control electrode is disposed between at least two adjacent second electrode lines
Optionally, the OLEDs comprises passive matrix OLEDs (PMOLEDs) having a plurality of first electrode lines and second electrode lines, the first electrode lines electrically connecting the first electrodes, the second electrode lines connecting the second electrodes； the plurality of first touch-control electrodes are parallel to the plurality of first  electrode lines and insulated from the plurality of the first electrode lines； and the plurality of second touch-control electrodes are parallel to the plurality of second electrode lines and insulated from the second electrode lines.
Optionally, the OLEDs comprises active matrix OLEDs (AMOLEDs) ； the plurality of first touch-control electrodes are electrically insulated from the plurality of first electrodes of the AMOLEDs； and a plurality of second electrode of the AMOLEDs are electrically connected.
Optionally, the organic light-emitting diode (OLED) touch-control substrate further includes thin film transistors for controlling the plurality of OLEDs.
Optionally, the organic light-emitting diode (OLED) touch-control substrate further includes gate lines connecting to gates of thin film transistors； and data lines connecting to sources of the thin film transistors.
Optionally, the first touch-control electrodes are parallel to one of the gate lines and the data lines； and the second touch-control electrodes are parallel to the other one of the gate lines and the data lines.
Optionally, the first electrodes are one of the anodes and the cathode； and the second electrodes are the other one of the anodes and the cathodes.
Optionally, the first touch-control electrodes are one of the driving electrode lines and sensing electrode lines； and the second touch-control electrodes are the other one of the driving electrodes and sensing electrodes.
Another aspect of the present disclosures is providing a method for fabricating an OLED touch-control substrate. The method comprises forming a plurality of first touch-control electrodes and a plurality of first electrodes of OLEDs insulated from the plurality of first touch-control electrodes in a same layer on a substrate； forming a light-emitting layer on the plurality of first touch-control electrodes and the plurality of first electrodes； and forming a plurality of second touch-control electrodes and a plurality of second electrodes insulated from the second touch-control electrodes in a same layer on the light-emitting layer.
The thicknesses of the modules of the OLED touch-control substrate fabricated by the disclosed method may be relatively small； and the light transmittance may be relatively large. Further, comparing with existing methods, the production cost may be relatively low.
Optionally, the method further includes forming a first insulation layer having a plurality of via holes corresponding to positions of the light-emitting layer of the OLEDs on the plurality of first touch-control electrodes and the plurality of first electrodes； and forming the light-emitting layer in each of the openings.
Optionally, the method further includes forming a plurality of insulation blocks at cross positions of the first touch-control electrodes and the second touch-control electrodes.
Optionally, the OLEDs are passive matrix OLEDs (PMOLEDs) having a plurality of first electrode lines and second electrode lines； the plurality of first touch-control electrodes are parallel to the plurality of first electrode lines and insulated from the first electrode lines； and the plurality of second touch-control electrodes are parallel to the plurality of second electrode lines and insulated from the second electrode lines.
Optionally, the OLEDs comprises active matrix OLEDs (AMOLEDs； the plurality of first touch-control electrodes are electrically insulated from the plurality of first electrodes； and the plurality of second electrodes are electrically connected.
Optionally, the method further includes forming a plurality of thin-film transistors for controlling the plurality of OLEDs on the substrate； and forming a second insulation layer having a plurality of openings corresponding to drains of thin-film transistors connecting the drains with the first electrodes.
Optionally, the first electrodes are one of the anodes and the cathodes； and the second electrodes are the other one of the anodes and the cathodes
Optionally, the first touch-control electrodes are one of the driving electrodes and the sensing electrode； and the second touch-control electrodes are the other one of the anodes and the sensing electrodes.
Another aspect of the present disclosure includes providing a display apparatus. The display apparatus comprises at least the disclosed OLED touch-control substrate.
Other aspects of the present disclosure can be understood by those skilled in the art in light of the description, the claims, and the drawings of the present disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 illustrates an exemplary PMOLED touch-control substrate according to the disclosed embodiments；
Figure 2 illustrates an exemplary AMOLED touch-control substrate according to the disclosed embodiments；
Figure 3 illustrates an exemplary fabrication process of an OLED display according to the disclosed embodiments；
Figures 4a～4c illustrate structures corresponding to certain stages of an exemplary fabrication process of a PMOLED touch-control substrate according to the disclosed embodiments；
Figures 5a～5f illustrate structures corresponding to certain stages of an exemplary fabrication process of an AMOLED touch-control substrate according to the disclosed embodiments； and
Figure 6 illustrates a block diagram of an exemplary display apparatus according to the disclosed embodiments.
DETAILED DESCRIPTION
For those skilled in the art to better understand the technical solution of the invention, reference will now be made in detail to exemplary embodiments of the invention, which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
In order to reduce the thicknesses of the modules of OLED touch-control substrate, and to increase the light transmittance and lower the production cost, an OLED touch-control substrate and a fabrication process thereof are provided in the present disclosure.
According to driving methods, OLEDs can be categorized as Passive Matrix OLEDs (PMOLEDs) and Active Matrix OLED (AMOLEDs) . For PMOLEDs, the anodes and cathodes form a matrix, and pixels in the matrix are turned on/off by a scanning mode. Each pixel is operated under a short pulse mode； and the emission of light in the PMOLEDs is a transient process with a relatively high light intensity. Figure 1 illustrates the top view of an exemplary PMOLED touch-control substrate according to the disclosed embodiments.
As shown in Figure 1, the PMOLED touch-control substrate may include a plurality of OLEDs (not labeled) . The plurality of OLEDs may be distributed as an array, i.e.,  a plurality of rows and a plurality of columns. Each of the plurality of OLEDs may include a first electrode 11, a second electrode 12, and a light-emitting layer 13 between the first electrode 11 and the second electrode 12.
Further, the PMOLED touch-control substrate may also include a plurality of first touch-control electrodes 14. The plurality of touch-control electrodes 14 may be disposed on a same layer with the first electrodes 11.
Further, the PMOLED touch-control substrate may also include a plurality of second touch-control electrodes 15. The plurality of the second touch-control electrodes 15 may be disposed on a same layer with the second electrodes 12.
Each row or column of first electrode 11 may be electrically connected by a first electrode line 18； and each row or column of the second electrodes 12 may be electrically by a second electrode line 19.
The first touch-control electrodes 14 and the second touch-control electrodes 15 may be electrically insulated by any appropriate structures. In one embodiment, as shown in Figure 1, the PMOLED may include a first insulation layer 16 between the layer having the first electrodes 11 and the first touch-control electrodes 14 and the layer having the second electrodes 12 and the second touch-control electrodes 15； and the first insulation 16 may be used to electrically insulate the first touch-control electrodes 14 and the second touch-control electrodes 15. The portions of the first insulation layer 16 corresponding to the light-emitting layers 13 may have via holes (not labeled in Figure 1) . That is, the light-emitting layers 13 may be in the via holes of the first insulation layer 16.
In certain other embodiments, insulation blocks (not labeled) may be formed between portions of the first touch-control electrodes 14 and the portions of the second touch-control electrodes 15 at the cross positions of the first touch-control electrodes 14 and the second touch-control electrodes 15. Thus, the first touch-control electrodes 14 and the second touch-control electrodes 15 may be electrically insulated.
The OLEDs may be top-emitting OLEDs, or bottom-emitting OLEDs. The OLEDs may include red OLEDs, green OLEDs, or white OLEDs, etc. In the OLED layer, PMOLED display may also include transport layer and shared layers, etc.
According to the type of the OLEDs, the first electrodes 11 may be anodes and the second electrodes 12 may be cathodes. In certain other embodiments, the first electrodes 11 may be cathodes and the second electrodes 12 may be anodes.
In a PMOLED display structure, the first electrodes 11 may be close to the substrate. In certain other embodiments, the second electrodes 12 may be close to the substrate.
Further, as electrode lines for realizing a touch-control function, the first touch-control electrodes 14 may be driving electrode lines, and the second touch-control electrodes 15 may be sensing electrode lines. In certain other embodiments, the first touch-control electrodes 14 may be touch-control sensing electrode lines and the second touch-control electrodes 15 may be driving electrode lines.
In a PMOLED display structure, the first touch-control electrodes 14 may be close to the substrate. In certain other embodiments, the second touch-control electrodes 15 may be close to the substrate.
Further, as shown in Figure 1, the PMOLED may also include a plurality of first electrode lines 18, and a plurality of second electrode lines 19. One first electrode line 18 may electrically connect one row, or one column of first electrodes 11； and one second electrode line 19 may electrically connect one row or one column of second electrodes 12. The plurality of first touch-control electrodes 14 may be parallel to the plurality of first electrode lines 18； and the plurality of second touch-control electrodes 15 may be parallel to the plurality of second electrode lines 19.
The number of first electrode lines 18 and the second electrode lines 19 corresponding to one OLED may be any appropriate value. For example, the light-emitting layer 13 of one OLED may be disposed at the cross-position of a first electrode line 18 and a second electrode line 19, as shown in Figure 1.
The line density of the first touch-control electrodes 14 and the second touch-control electrodes 15 may be any appropriate value. For example, one first touch-control electrode line14 may be disposed between two adjacent first electrode lines 18, or one first touch-control electrode line 14 may be disposed between two sets of first electrode lines 18； and each set of first electrode lines 18 may include a plurality of first electrode lines 18. Similarly, one second touch-control electrode line 15 may be disposed between two adjacent second electrode lines 19, or one second touch-control electrode line 15 may be disposed between two sets of second electrode lines 19； and each set of second electrode lines 19 may include a plurality of second electrode lines 19.
AMOLEDs utilize independent Thin Film Transistors (TFTs) to drive each pixel； and each pixel is able to independently and continuously emit light. Figure 2 illustrates the top view of an exemplary AMOLED touch-control substrate according to the disclosed embodiments. As shown in Figure 2, the AMOLED touch-control substrate may include a plurality of OLEDs (not labeled) . The plurality of OLEDs may be distributed as an array, i.e., a plurality of rows and a plurality of columns. Each of the plurality of OLEDs may include a first electrode 11, a second electrode 12, and a light-emitting layer 13 between the first electrode 11 and the second electrode 12.
Further, the AMOLED touch-control substrate may also include a plurality of first touch-control electrodes 14. The plurality of touch-control electrodes 14 may be disposed on a same layer with the first electrodes 11.
Further, the AMOLED touch-control substrate may also include a plurality of second touch-control electrodes 15. The plurality of second touch-control electrodes 15 may be disposed on a same layer with the second electrodes 12.
The first touch-control electrodes 14 and the second touch-control electrodes 15 may be electrically insulated by any appropriate structures. In one embodiment, as shown in Figure 2, the AMOLED touch-control substrate may include a first insulation layer 16 between the layer having the first electrodes 11 and the first touch-control electrodes 14 and the layer having the second electrodes 12 and the second touch-control electrodes 15； and the first insulation layer 16 may be used to electrically insulate the first touch-control electrodes 14 and the second touch-control electrodes 15. The portions of the first insulation layer 16 corresponding to the light-emitting layers 13 may have via holes (not labeled in Figure 2) . That is, the light-emitting layers 13 may be in the via holes of the first insulation layer 16.
In certain other embodiments, insulation blocks (not labeled) may be formed between portions of the first touch-control electrodes 14 and the portions of the second touch-control electrodes 15 at the cross-positions of the first touch-control electrodes 14 and the second touch-control electrodes 15. Thus, the first touch-control electrodes 14 and the second touch-control electrodes 15 may be electrically insulated.
The OLEDs may be top-emitting OLEDs, or bottom-emitting OLEDs. The OLEDs may include red OLEDs, green OLEDs, or white OLEDs, etc. In the OLED layer, an AMOLED display may also include transport layers and shared layers, etc.
According to the type of the OLEDs, the first electrodes 11 may be anodes and the second electrodes 12 may be cathodes. In certain other embodiments, the first electrodes 11 may be cathodes and the second electrodes 12 may be anodes.
In an AMOLED touch-control substrate structure, the first electrodes 11 may be close to the substrate. In certain other embodiments, the second electrodes 12 may be close to the substrate.
Further, as electrode lines for realizing a touch-control function, the first touch-control electrodes 14 may be driving electrode lines, and the second touch-control electrodes 15 may be touch-sensing electrode lines. In certain other embodiments, the first touch-control electrodes 14 may be touch-sensing electrode lines and the second touch-control electrodes 15 may driving electrode lines.
In an AMOLED display structure, the first touch-control electrodes 14 may be close to a substrate. In certain other embodiments, the second touch-control electrodes 15 may be close to a substrate.
Further, as shown in Figure 2, the first electrodes 11 of the plurality of OLEDs may be insulated from each other； and the second electrodes 12 of the plurality of second electrodes 12 may be electrically connected. Further, the AMOLED touch-control substrate may include TFTs 20 for controlling the corresponding OLEDs.
Specifically, as shown in Figure 2, the drain (not labeled) of the TFTs 20 may electrically connect with the first electrodes 11. The OLEDs may be turned on or off by controlling the TFTs 20.
Further, as shown in Figure 2, the AMOLED touch-control substrate may also include gate lines 22 and data lines 23. The sources of TFTs 20 may electrically connect with the data lines 23； and the gates of the TFTs 20 may electrically connect with the gate lines 23. The first touch-control electrodes 14 may be parallel to the data lines 23； and the second touch-control electrodes 15 may be parallel to the gate lines 22. In certain other embodiments, the first touch-control electrodes 14 may be parallel to the gate lines 22； and the second touch-control electrodes 15 may be parallel to the data lines 23.
Therefore, as shown in Figure 1 and Figure 2, in the PMOLED and the AMOLED, the first touch-control electrodes 14 and the second touch-control electrodes 15 configured to realize a touch-control function may be embedded in the OLED display. Comparing with the existing technologies, the thickness of the modules of the OLED touch- control substrate may be significantly reduced, the light transmittance may be increased； and the production cost may be reduced.
Figure 3 illustrates an exemplary fabrication process of an OLED touch-control substrate. Figures 4a～4c illustrate structures corresponding certain stages of the exemplary fabrication for forming a PMOLED touch-control substrate.
As shown in Figure 3, at the beginning of the fabrication process, a plurality of first touch-control electrodes and a plurality of first electrodes of the PMOLEDs may be formed on a substrate (S101) . Figure 4a illustrates a corresponding structure.
As shown in Figure 4a, a substrate (not labeled) is provided； and a plurality of first touch-control electrodes 14 and a plurality of first electrode lines 18 may be formed. The plurality of first touch-control electrodes 14 may be parallel to each other； and the plurality of first electrode lines 18 may be parallel to each other. The dashed areas on the first electrode lines 18 may be corresponding to the first electrodes 11 of the PMOLEDs. That is, the dashed areas of the first electrode lines 18 may be configured as the first electrodes 11 of the PMOLEDs, i.e., one light-emitting layer 13 may be subsequently formed on each of the dashed regions of the first electrode lines 18. Or, one first electrode line 18 may be used to electrically connect one row of first electrodes 11, or one column of first electrodes 11. Further, the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18 may be on a same layer, i.e., a surface of the substrate.
The plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18 may be formed by a patterning process. For example, the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18 may be formed by forming a metal layer on the surface of the substrate； and followed by patterning the metal layer. In certain other embodiments, the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18 may be formed by a lift-off process.
After providing the substrate and forming the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18, a first insulation layer may be formed. Figure 4b illustrates a corresponding structure.
As shown in Figure 4b, a first insulation layer 16 may be formed on the plurality of first touch-control electrodes 14 and the plurality of first electrode lines 18. The first insulation layer 16 may have a plurality of via holes 17. The portions of the first electrode lines 18 exposed by the via holes 17 may be configured as the first electrodes 11 of  the PMOLEDs. The via holes 17 may be used to subsequently form a light-emitting layer. Thus, the light-emitting layer may be formed on the first electrodes 11.
The first insulation layer 16 may be formed by a patterning process. Specifically, an insulation material layer may be formed on the plurality of first touch-control electrodes 14, the plurality of first electrode lines 18 and the substrate； and followed by etching the insulation material layer to expose the portion of the first electrode lines 18 corresponding to the first electrodes 11.
Returning to Figure 3, after forming the first insulation layer 16, a light-emitting layer may be formed (S102) . Figure 4c illustrates a corresponding structure.
As shown in Figure 4c, a light-emitting layer 13 is formed in each of the via holes 17. That is, a light-emitting layer 13 is formed on each of the first electrodes 11.
The light-emitting layer 13 may be formed by a patterning process. Specifically, a light-emitting material layer may be formed in the via holes 17 and on the first insulation layer 16； and followed by removing the portion of the light-emitting material layer on the first insulation layer 16. Thus, a light-emitting layer 13 is formed in each of the via holes 17, or on each of the first electrodes 11.
Returning to Figure 3, after forming the light-emitting layer 13, a plurality of second touch-control electrodes and a plurality of second electrode lines may be formed (S103) . A corresponding structure may refer to Figure 1.
As shown in Figure 1, a plurality of second touch-control electrodes 15 and a plurality of second electrodes lines 19 are formed on the first insulation layer 16 and the light-emitting layer 13. The plurality of second touch-control electrodes 15 and the plurality of second electrodes lines 19 may be on a same layer. The plurality of second touch-control electrodes 15 and the plurality of second electrode lines 19 may be parallel to each other. Further, the portions of the second electrode lines 19 contacting with the light-emitting layer 13 may be referred as second electrodes 12.
The plurality of second touch-control electrodes 15 and the plurality of second electrodes lines 19 may be formed by a patterning process. Specifically, a second material layer may be formed on the light-emitting layer 13 and the first insulation layer 16； and followed by patterning the second material layer to form the plurality of second touch-control electrodes 15 and the plurality of second electrodes lines 19. In certain other embodiments,  the plurality of second touch-control electrodes 15 and the plurality of second electrodes lines 19 may be formed by a lift-off process.
Figures 5a～5f illustrate structures corresponding to certain stages of the exemplary fabrication process illustrated in Figure 3 for forming an AMOLED touch-control substrate according to the disclosed embodiments.
Referring to Figure 1 and Figure 2, comparing with the PMOLED touch-control substrate, an AMOLED touch-control substrate may include TFTs 20, data lines 23, and gate lines 22. Further, the first electrodes 11 of the plurality of AMOLEDs may be electrically insulated； and the second electrodes 12 of the plurality of the AMOLEDs may be electrically connected. Thus, before forming the first touch-control electrodes 14 and the first electrode lines 18, a plurality of TFTs 20 may be formed on a substrate； and a second insulation layer may be formed on the TFTs. The portions of the second insulation layer corresponding to the drains of the TFTs 20 may have a plurality of corresponding via holes.
Specifically, at the beginning of the fabrication process, a plurality of gate lines 22 may be formed on a substrate. Figure 5a illustrates a corresponding structure. As shown in Figure 5a, the plurality of gate lines 22 may be parallel to each other. The plurality of gate lines 22 may be formed by a patterning process.
Further, after forming the plurality of gates lines 22, a gate dielectric layer (not shown) may be formed on the gate lines 22. The gate dielectric layer may be formed by any appropriate process； and may be patterned to be configured as the gate dielectric layer of the plurality of OLEDs.
Further, after forming the gate dielectric layer, an active layer (not shown) may be formed on the gate dielectric layer. The active layer may be formed by any appropriate processes； and may be patterned to be configured as an active layer of the plurality of OLEDs.
Further, after forming the active layer, a plurality of data lines 23 may be formed on the active layer. Thus, as shown in Figure 5b, TFTs 20 may be formed. Figure 5b illustrates the schematic of the TFTs 20.
Further, as shown in Figure 5c, after forming the TFTs, a second insulation layer 21 may be formed on the data lines 23 and the TFTs 20. The positions of the second insulation layer 21 corresponding to the drains of the TFTs 20 may have a plurality of via holes (not shown) .
Further, as shown in Figure 5d, after forming the second insulation layer 21, a plurality of first touch-control electrodes 14 and first electrodes 11 of the plurality of OLEDs may be formed on the substrate. The first electrodes 11 of the plurality of OLEDs may be separated. The plurality of first touch-control electrodes 14 and the plurality of first electrodes 11 may be on a same layer.
The plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of the OLEDs may be formed by a patterning process. Specifically, a first material layer may be formed on the second insulation layer 21； and followed by patterning the first material layer. Thus, the plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of OLEDs may be formed. In certain other embodiments, the plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of OLEDs may be formed by a lift-off process.
Further, as shown in Figure 5e, after forming the plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of OLEDs, a first insulation layer 16 may be formed on the plurality of first touch-control electrodes 14 and the first electrodes 11 of the plurality of OLEDs. The positions of the first insulation layer 16 corresponding to the subsequently formed light-emitting layer of OLEDs may have a plurality of via holes 17. That is, the first electrodes 11 may be exposed.
The first insulation layer 16 having the plurality of via holes 17 may be formed by a patterning process. Specifically, a first insulation material layer may be formed on the plurality of first touch-control electrodes 14, the first electrodes 11 of the plurality of OLEDs and the second insulation layer 23； and followed by etching the first insulation material layer to form the plurality of via holes 17.
Further, as shown in Figure 5f, after forming the first insulation layer 16 having the plurality of via holes 17, a light-emitting layer 13 is formed in each of the via holes 17. That is, the first light-emitting layer 13 is formed on the first electrodes 11.
The light-emitting layer 13 may be formed by a patterning process. Specifically, a light-emitting material layer may be formed on the first electrodes 11 and a portion of the first insulation layer 16； and followed by removing the portion of the light-emitting material layer on the first insulation layer 16. Thus, the light-emitting layer 13 may be formed on each of the first electrodes 11.
Further, after forming the light-emitting layer 13, a plurality of second touch-control electrodes 15 and second electrodes 12 of the plurality of OLEDs may be formed on the first insulation layer 16 and the light-emitting layer 13. A corresponding structure is illustrated in Figure 2. As shown in Figure 2, the plurality of second electrodes 12 of the OLEDs may be electrically connected. The plurality of second touch-control electrodes 15 and the second electrodes 12 may be formed on a same layer.
The plurality of second touch-control electrodes 15 and the second electrodes 12 of the plurality of OLEDs may be formed by a patterning process. Specifically, a second material layer may be formed on the first insulation layer 16 and the light-emitting layer 13 and followed by patterning the second material. Thus, the plurality of second touch-control electrodes 15 and the second electrodes 12 of the plurality of OLEDs may be formed. In certain other embodiments, the plurality of second touch-control electrodes 15 and the second electrodes 12 of the plurality of OLEDs may be formed by a lift-off process.
The TFTs 20 may be bottom-gated TFTs. In certain other embodiments, the TFTs 20 may be top-gated TFTs. The TFTs 20 may be used to control the light-emitting of the OLEDs.
According to the disclosed embodiments, the module thickness of the OLED touch-control substrate formed by the disclosed methods may be relatively small, and the light transmittance may be relatively high. Further, because the first touch-control electrodes and the first electrodes of the OLEDs may be made of a same material； and the second touch-control electrodes and the second electrode may be made of a same material, it may not need extra masks and patterning processes. Thus, the production cost may be relatively low.
Further, according to the disclosed embodiments, a display apparatus is provided. Figure 6 illustrates an exemplary display apparatus 400 incorporating at least a disclosed OLED touch-control substrate and other aspects of the present disclosure. The display device 400 may be any appropriate device, panel or component with certain display function, such as an OLED panel, an OLED TV, an OLED monitor, an OLED cell phone, an OLED navigation system, or e-paper, etc. As shown in Figure 6, the display apparatus 400 includes a controller 402, a driver circuit 404, a memory 406, peripherals 408, and an OLED touch-control substrate 410. Certain devices may be omitted and other devices may be included.
The controller 402 may include any appropriate processor or processors. Further, the controller 402 can include multiple cores for multi-thread or parallel processing. The memory 406 may include any appropriate memory modules. The memory 406 may store computer programs for implementing various processes, when executed by the controller 402.
Peripherals 408 may include any interface devices for providing various signal interfaces. Further, peripherals 408 may include any input and output (I/O) devices. Peripherals 408 may also include any appropriate communication module for establishing connections through wired or wireless communication networks.
The driver circuitry 404 may include any appropriate driving circuits to drive the OLED touch-control substrate 410. During operation, the OLED touch-control substrate 410 may be provided with image signals by the controller 402 and the driver circuit 404 for display. Because the module thickness of the disclosed OLED touch-control substrate be relatively small, the light-transmittance may be relative high； and the production cost may be reduced, the display apparatus having such a OLED touch-control substrate may also have similar advantages.
The above detailed descriptions only illustrate certain exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Those skilled in the art can understand the specification as whole and technical features in the various embodiments can be combined into other embodiments understandable to those persons of ordinary skill in the art. Any equivalent or modification thereof, without departing from the spirit and principle of the present invention, falls within the true scope of the present invention.

Claims (20)

  1. An organic light-emitting diode (OLED) touch-control substrate, comprising:
    a plurality of OLEDs, each of the OLEDs having a first electrode, a second electrode and a light-emitting layer between the first electrode and the second electrode；
    a plurality of first touch-control electrodes disposed in a same layer with the first electrode and insulated from the first electrode； and
    a plurality of second touch-control electrodes disposed in a same layer with the second electrode and insulated from the second electrode and the first touch-control electrodes.
  2. The organic light-emitting diode (OLED) touch-control substrate according to claim 1, further comprising:
    a first dielectric layer disposed between the layer having the first touch-control electrodes and the first electrodes and the layer having the second touch-control electrodes and the second electrodes, having via holes at positions corresponding to the light-emitting layer.
  3. The organic light-emitting diode (OLED) touch-control substrate according to claim 1, further comprising:
    a plurality of insulation blocks disposed at cross positions of the first touch-control electrodes and the second touch-control electrodes.
  4. The organic light-emitting diode (OLED) touch-control substrate according to claim 1, wherein:
    one first touch-control electrode is disposed between at least two adjacent first electrode lines； and
    one second touch-control electrode is disposed between at least two adjacent second electrode lines.
  5. The organic light-emitting diode (OLED) touch-control substrate according to any one of claims 1～4, wherein:
    the OLEDs comprise passive matrix OLEDs (PMOLEDs) having a plurality of first electrode lines and second electrode lines, the first electrode lines electrically connecting the first electrodes, and the second electrode line connecting the second electrodes；
    a plurality of first touch-control electrode lines are parallel to the plurality of first electrode lines and insulated from the plurality of the first electrode lines； and
    a plurality of second touch-control electrode lines are parallel to a plurality of second electrode lines and insulated from the second electrode lines.
  6. The organic light-emitting diode (OLED) touch-control substrate according to any one of claims 1～4, wherein:
    the OLEDs comprise active matrix OLEDs (AMOLEDs) ；
    the first touch-control electrodes are electrically insulated from the first electrodes of the AMOLEDs； and
    the second electrodes of the AMOLEDs are electrically connected.
  7. The organic light-emitting diode (OLED) touch-control substrate according to claim 6, further comprising:
    a plurality of thin film transistors for controlling the plurality of OLEDs.
  8. The organic light-emitting diode (OLED) touch-control substrate according to claim 6 or claim 7, further comprising:
    gate lines connecting to gates of the thin film transistors； and
    data lines connecting to sources of the thin film transistors.
  9. The organic light-emitting diode (OLED) touch-control substrate according to claim 8, wherein:
    the first touch-control electrode lines are parallel to one of the gate lines and the data lines； and
    the second touch-control electrode lines are parallel to the other one of the gate lines and the data lines.
  10. The organic light-emitting diode (OLED) touch-control substrate according to any one of claims 1～9, wherein:
    the first electrodes are one of anodes and cathodes； and
    the second electrodes are the other one of anodes and cathodes.
  11. The organic light-emitting diode (OLED) touch-control substrate according to any one of claims 1～9, wherein:
    the first touch-control electrodes are driving electrode lines； and
    the second touch-control electrodes are sensing electrode lines.
  12. A method for fabricating an organic light-emitting diode (OLED) touch-control substrate, comprising:
    forming a plurality of first touch-control electrodes and a plurality of first electrodes of OLEDs insulated from the plurality of first touch-control electrodes in a same layer on a substrate；
    forming a light-emitting layer on the plurality of first touch-control electrodes and the plurality of first electrodes； and
    forming a plurality of second touch-control electrodes and a plurality of second electrodes insulated from the plurality of second touch-control electrodes in a same layer on the light-emitting layer.
  13. The method according to claim 12, further comprising:
    forming a first insulation layer having a plurality of via holes corresponding to positions of the light-emitting layer of the OLEDs on the plurality of first touch-control electrodes and the plurality of first electrodes； and
    forming the light-emitting layer in each of the via holes.
  14. The method according to claim 12, further comprising:
    forming a plurality of insulation blocks at cross positions of the first touch-control electrodes and the second touch-control electrodes.
  15. The method according to any one of claims 12～14, wherein:
    the OLEDs comprise passive matrix OLEDs (PMOLEDs) having a plurality of first electrode lines and second electrode lines, the first electrode lines electrically connecting the first electrodes, and the second electrode lines electrically connecting the second electrodes；
    the plurality of first touch-control electrode lines are parallel to the plurality of first electrode lines and insulated from the plurality of the first electrode lines； and
    the plurality of second touch-control electrode lines are parallel to a plurality of second electrode lines and insulated from the second electrode lines.
  16. The method according to any one of claims 12～14, wherein:
    the OLEDs comprise active matrix OLEDs (AMOLEDs) ；
    the plurality of first touch-control electrodes are electrically insulated from a plurality of first electrodes of the AMOLEDs； and
    a plurality of second electrodes of the AMOLEDs are electrically connected.
  17. The method according to claim 16, further comprising:
    forming a plurality of thin-film transistors for controlling the OLEDs on the substrate； and
    forming a second insulation layer having a plurality of via holes corresponding to drains of thin-film transistors connecting the drains with the first electrodes.
  18. The method according to any one of claims 12～17, wherein:
    the first electrodes are one of anodes and cathodes； and
    the second electrodes are the other one of anodes and cathodes.
  19. The method according to any one of claims 12～17, wherein:
    the first touch-control electrodes are one of the driving electrodes and the sensing electrodes； and
    the second touch-control electrodes are the other one of the driving electrodes and the sensing electrodes.
  20. A display apparatus comprising the OLED touch-control substrate according to any one of claims 1～11.
PCT/CN2015/097029 2015-03-30 2015-12-10 Oled touch-control substrate and fabrication method thereof, and display apparatus WO2016155354A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/031,068 US10263051B2 (en) 2015-03-30 2015-12-10 OLED touch-control substrate and fabrication method thereof, and display apparatus
EP15851612.0A EP3281226B1 (en) 2015-03-30 2015-12-10 Oled touch-control substrate and fabrication method thereof, and display apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510144816.6A CN104795425A (en) 2015-03-30 2015-03-30 Organic light emitting diode touch display screen and manufacturing method thereof
CN201510144816.6 2015-03-30

Publications (1)

Publication Number Publication Date
WO2016155354A1 true WO2016155354A1 (en) 2016-10-06

Family

ID=53560108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/097029 WO2016155354A1 (en) 2015-03-30 2015-12-10 Oled touch-control substrate and fabrication method thereof, and display apparatus

Country Status (4)

Country Link
US (1) US10263051B2 (en)
EP (1) EP3281226B1 (en)
CN (1) CN104795425A (en)
WO (1) WO2016155354A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11563061B2 (en) 2017-05-12 2023-01-24 Boe Technology Group Co., Ltd. OLED array substrate, manufacturing method thereof and touch display device

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104795425A (en) 2015-03-30 2015-07-22 京东方科技集团股份有限公司 Organic light emitting diode touch display screen and manufacturing method thereof
CN105093547B (en) * 2015-08-20 2019-06-07 京东方科技集团股份有限公司 3D display device and its driving method
CN106356394B (en) 2016-10-27 2018-09-04 北京小米移动软件有限公司 Display base plate and preparation method thereof and electronic equipment
CN106328685B (en) * 2016-10-31 2019-08-02 上海天马有机发光显示技术有限公司 Organic light emitting display panel and display device comprising it
CN108206196A (en) 2016-12-16 2018-06-26 京东方科技集团股份有限公司 A kind of organic electroluminescence display device and method of manufacturing same
CN106654067A (en) * 2017-01-11 2017-05-10 京东方科技集团股份有限公司 Touch control substrate, fabrication method thereof and display device
CN107026191B (en) * 2017-05-03 2020-05-26 京东方科技集团股份有限公司 OLED display device and control method thereof
CN107170780A (en) * 2017-05-17 2017-09-15 京东方科技集团股份有限公司 OLED display panel and preparation method thereof, OLED display
CN109256407B (en) * 2017-07-12 2020-11-06 晶门科技（中国）有限公司 Touch sensing display panel
CN109558025B (en) * 2017-09-27 2024-04-02 京东方科技集团股份有限公司 Touch panel, manufacturing method thereof and display device
TW201918844A (en) * 2017-10-31 2019-05-16 瑞鼎科技股份有限公司 In-cell capacitive touch panel
CN108183121A (en) * 2017-12-15 2018-06-19 武汉华星光电半导体显示技术有限公司 Flexible display panels and preparation method thereof
CN112346599B (en) * 2020-11-30 2022-08-12 湖北长江新型显示产业创新中心有限公司 Display panel and touch display device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1811571A2 (en) 2006-01-23 2007-07-25 Samsung SDI Co., Ltd. Organic light emitting display and method of fabricating the same
CN103887324A (en) * 2014-04-14 2014-06-25 友达光电股份有限公司 AMOLED display device of integrated touch panel
CN203858617U (en) * 2014-05-30 2014-10-01 京东方科技集团股份有限公司 Array substrate and capacitive embedded touch screen
CN104182112A (en) * 2014-07-30 2014-12-03 京东方科技集团股份有限公司 Touch control display panel and display device
CN104393025A (en) * 2014-12-09 2015-03-04 京东方科技集团股份有限公司 Array substrate, touch display panel and touch display device
CN104409467A (en) 2014-10-13 2015-03-11 上海天马有机发光显示技术有限公司 A touch panel and manufacturing method thereof and a display device
CN204204861U (en) 2014-12-09 2015-03-11 京东方科技集团股份有限公司 A kind of array base palte, touch-control display panel and touch control display apparatus
CN104461092A (en) * 2013-09-13 2015-03-25 宸鸿科技(厦门)有限公司 Touch panel and touch electrode structure thereof
CN104795425A (en) * 2015-03-30 2015-07-22 京东方科技集团股份有限公司 Organic light emitting diode touch display screen and manufacturing method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101563237B1 (en) * 2007-06-01 2015-10-26 가부시키가이샤 한도오따이 에네루기 켄큐쇼 Manufacturing apparatus and manufacturing method of light-emitting device
JP2011037556A (en) * 2009-08-07 2011-02-24 Canon Inc Image forming device
KR101756656B1 (en) * 2010-06-25 2017-07-11 엘지디스플레이 주식회사 Organic light emitting diode display device including touch panel
TW201349033A (en) * 2012-05-17 2013-12-01 Wintek Corp Touch display panel
CN104346010B (en) * 2013-08-08 2017-08-08 群创光电股份有限公司 Array base palte and apply its display panel
CN103927043A (en) * 2013-12-26 2014-07-16 上海天马有机发光显示技术有限公司 Double-face touch OLED (organic light emitting diode) display panel and touch display device
US9886158B2 (en) * 2014-07-30 2018-02-06 Boe Technology Group Co., Ltd. In-cell electromagnetic touch display panel and display device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1811571A2 (en) 2006-01-23 2007-07-25 Samsung SDI Co., Ltd. Organic light emitting display and method of fabricating the same
CN104461092A (en) * 2013-09-13 2015-03-25 宸鸿科技(厦门)有限公司 Touch panel and touch electrode structure thereof
CN103887324A (en) * 2014-04-14 2014-06-25 友达光电股份有限公司 AMOLED display device of integrated touch panel
CN203858617U (en) * 2014-05-30 2014-10-01 京东方科技集团股份有限公司 Array substrate and capacitive embedded touch screen
CN104182112A (en) * 2014-07-30 2014-12-03 京东方科技集团股份有限公司 Touch control display panel and display device
CN104409467A (en) 2014-10-13 2015-03-11 上海天马有机发光显示技术有限公司 A touch panel and manufacturing method thereof and a display device
CN104393025A (en) * 2014-12-09 2015-03-04 京东方科技集团股份有限公司 Array substrate, touch display panel and touch display device
CN204204861U (en) 2014-12-09 2015-03-11 京东方科技集团股份有限公司 A kind of array base palte, touch-control display panel and touch control display apparatus
CN104795425A (en) * 2015-03-30 2015-07-22 京东方科技集团股份有限公司 Organic light emitting diode touch display screen and manufacturing method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3281226A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11563061B2 (en) 2017-05-12 2023-01-24 Boe Technology Group Co., Ltd. OLED array substrate, manufacturing method thereof and touch display device

Also Published As

Publication number Publication date
EP3281226A1 (en) 2018-02-14
US10263051B2 (en) 2019-04-16
US20180158875A1 (en) 2018-06-07
EP3281226B1 (en) 2020-09-30
CN104795425A (en) 2015-07-22
EP3281226A4 (en) 2018-10-31

Similar Documents

Publication Publication Date Title
US10263051B2 (en) OLED touch-control substrate and fabrication method thereof, and display apparatus
CN112071882B (en) Display substrate, preparation method thereof and display device
US9985085B2 (en) Array substrate for narrow frame design, manufacturing method thereof and display device
US11195897B2 (en) OLED array substrate and OLED display device
US10756291B2 (en) Method of manufacturing an OLED panel and OLED panel
US10756292B2 (en) Method of manufacturing an OLED panel and an OLED panel
US9831461B2 (en) Display substrate and manufacturing method thereof, display panel and mask
US9741782B2 (en) Active matrix organic light-emitting display and display apparatus
US20170338293A1 (en) Array Substrate and Method for Fabricating the Same, and Display Apparatus
US11580904B2 (en) Transparent display panels and display panels
WO2016090854A1 (en) Array substrate, touch-control display panel and touch-control display device
US10466820B2 (en) OLED array substrate, manufacturing method thereof and touch display device
US20170069271A1 (en) Display apparatus
US20150090989A1 (en) Organic el display device and method for manufacturing the organic el display device
US20140183502A1 (en) Organic light emitting diode display
CN108400154B (en) OLED panel
JP2005331919A (en) Flat display device and electroluminescence display device
KR20140104844A (en) Flexible display device and method of fabricating the same
US20170192566A1 (en) Array substrate, oled display panel, methods of manufacturing the same, and display device
US11527735B2 (en) Flexible display panel with connecting portion and flexible bridging portion, method for manufacturing the same and display device
US10289229B2 (en) Touch panel with reduced electromagnetic interference
US10963081B2 (en) Drive method and drive circuit for driving organic light-emitting diode panel and display device
US8129722B2 (en) Light emitting display and method of manufacturing the same
US10014360B2 (en) Array substrate comprising a power wire layer and manufacturing method thereof
US20160343779A1 (en) Woled display device and manufacture method thereof

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 15031068

Country of ref document: US

REEP Request for entry into the european phase

Ref document number: 2015851612

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15851612

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2015851612

Country of ref document: EP