WO2021007890A1 - Oled显示装置 - Google Patents

Oled显示装置 Download PDF

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Publication number
WO2021007890A1
WO2021007890A1 PCT/CN2019/099277 CN2019099277W WO2021007890A1 WO 2021007890 A1 WO2021007890 A1 WO 2021007890A1 CN 2019099277 W CN2019099277 W CN 2019099277W WO 2021007890 A1 WO2021007890 A1 WO 2021007890A1
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WO
WIPO (PCT)
Prior art keywords
light
sensing
emitting
array
touch
Prior art date
Application number
PCT/CN2019/099277
Other languages
English (en)
French (fr)
Inventor
郑园
Original Assignee
武汉华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/630,866 priority Critical patent/US11043541B2/en
Publication of WO2021007890A1 publication Critical patent/WO2021007890A1/zh
Priority to US17/283,277 priority patent/US11822748B2/en
Priority to US18/227,937 priority patent/US12041838B2/en
Priority to US18/676,102 priority patent/US20240324390A1/en

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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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing 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
    • H10K59/40—OLEDs integrated with touch screens
    • 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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
    • 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
    • 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
    • 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
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76—Unipolar devices, e.g. field effect transistors
    • H01L29/772—Field effect transistors
    • H01L29/78—Field effect transistors with field effect produced by an insulated gate
    • H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • 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
    • 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
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
    • 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
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations

Definitions

  • the present invention relates to the field of display technology, in particular to an OLED display device.
  • OLED Organic Light-Emitting Diode
  • CRT Ray Tube
  • OLED usually includes: a substrate, an anode provided on the substrate, a hole injection layer (HIL) provided on the anode, a hole transport layer (HTL) provided on the hole injection layer, and a hole transport layer (HTL) provided on the hole transport layer.
  • HIL hole injection layer
  • HTL hole transport layer
  • HTL hole transport layer
  • HTL hole transport layer
  • HTL hole transport layer
  • the light-emitting principle of OLED display devices is that semiconductor materials and organic light-emitting materials are driven by an electric field to cause light emission through carrier injection and recombination.
  • the existing one adopts the touch layer to be directly arranged on the OLED panel (Direct On-cell Touch (DOT) technology
  • OLED display device includes a glass substrate, a polyimide (PI) film, a thin film transistor (TFT) array layer, a light-emitting function layer, a thin film encapsulation layer, and a touch control layer arranged in sequence.
  • the touch control layer includes A plurality of touch electrodes arranged in an array, the plurality of touch electrodes include transmitting electrodes and receiving electrodes alternately arranged in turn, the adjacent receiving electrodes are directly connected, and the adjacent transmitting electrodes are connected to the multiple touch electrodes
  • the bridges arranged in different layers are connected to realize the touch function.
  • CUP Camera Under panel
  • the so-called CUP technology means that the camera is set on the back of the OLED display panel, and the light-transmitting area corresponding to the camera is set in the OLED display panel.
  • the light-transmitting area can be displayed and touched normally.
  • the light can enter the camera through the light-transmitting area to facilitate imaging. Therefore, the light-transmitting area not only needs to be provided with a pixel unit capable of displaying, but also needs to have a higher transmittance.
  • the existing OLED display device that uses both CUP technology and DOT technology has touch control in the light-transmitting area. The layer seriously affects the transmittance of the light-transmitting area.
  • the object of the present invention is to provide an OLED display device that can increase the transmittance of the light-transmitting area on the basis of ensuring the normal touch function of the light-transmitting area.
  • the present invention provides an OLED display device, including a substrate, a light-emitting function layer, and a touch control layer that are sequentially arranged;
  • the substrate includes a light-transmitting area and a display area adjacent to the light-transmitting area;
  • the light-emitting function layer includes a plurality of light-emitting points arranged in an array in the light-transmitting area, and each light-emitting point includes a plurality of light-emitting points arranged in an array.
  • the touch layer includes a plurality of touch electrodes arranged in an array;
  • the plurality of touch electrodes includes a plurality of emitting electrodes and a plurality of receiving electrodes alternately arranged in sequence, and adjacent emitting electrodes and receiving electrodes are spaced apart;
  • the touch electrode disposed corresponding to the light-transmitting area includes a first part; the first part includes a plurality of sensing blocks and a plurality of sensing traces arranged in an array in the light-transmitting area; the sensing blocks in the same row Two adjacent sensing blocks are connected by at least one sensing wiring; two neighboring sensing blocks in the same row of sensing blocks are connected by at least one sensing wiring; each sensing block is corresponding to Above a light-emitting point, each sensing block has a grid-like structure, and the vertical projection of each sensing block is located outside the area where the multiple light-emitting units of the corresponding light-emitting point are located.
  • the plurality of sensing blocks closest to the other touch electrode in the first part of one touch electrode are respectively connected to the other touch electrode
  • the plurality of sensing blocks closest to the one touch electrode in the first part are arranged in one-to-one correspondence, and the two correspondingly arranged sensing blocks are located above the same luminous point.
  • the first part of each touch electrode is close to the edge of the other touch electrode with a plurality of extensions, and one end of each extension is It is connected to a sensing block, and the other end extends away from the first part where it is located.
  • Each extension includes a plurality of extension traces spaced in parallel, and the length of the extension traces in each extension is different.
  • the multiple extensions of the first part of one touch electrode correspond to the multiple extensions of the first part of the other touch electrode respectively, and the multiple extension traces of one of the two corresponding extensions respectively correspond to the other extensions.
  • One and multiple extension traces are set relative to each other.
  • the grid line width of the sensing block is smaller than the width of the sensing trace; the width of the extension trace is equal to the width of the sensing trace.
  • the angle between the row direction of the multiple light-emitting units in the light-emitting point and the row direction of the multiple sensing blocks in the first part is 45°;
  • the row direction of the multiple light-emitting units in the light-emitting point is consistent with the row direction of the multiple touch electrodes
  • each sensing trace is consistent with the row direction or column direction of the plurality of sensing blocks in the first part;
  • the extension direction of each extension trace is consistent with the column direction of the plurality of sensing blocks in the first part.
  • the touch electrode disposed corresponding to the light-transmitting area further includes a second part located in the display area and connected to the first part; the second part is provided with a plurality of first openings arranged in an array.
  • edges of the plurality of touch electrodes located outside the light-transmitting area are all in a zigzag structure; outside the light-transmitting area, the edges of any two adjacent touch electrodes are matched.
  • Each touch electrode except for the touch electrode provided corresponding to the light-transmitting area is provided with a plurality of second openings arranged in an array.
  • the OLED display device further includes a thin film transistor array layer arranged between the light emitting function layer and the substrate, and a thin film encapsulation layer arranged between the light emitting function layer and the touch control layer.
  • the thin film transistor array layer includes an array wiring, and the first part is located above the array wiring.
  • the light-emitting function layer of the OLED display device of the present invention includes a plurality of light-emitting points arranged in an array in the light-transmitting area, each light-emitting point includes a plurality of light-emitting units arranged in an array, and the touch control layer includes an array A plurality of touch electrodes are arranged.
  • the touch electrodes arranged corresponding to the light-transmitting area include a first part.
  • the first part includes a plurality of sensing blocks and a plurality of sensing traces arranged in an array, and the same row and the same column are sensed.
  • Two adjacent sensing blocks in the block are connected by at least one sensing trace, and each sensing block is correspondingly arranged above a light-emitting point, each sensing block is in a grid structure, and each sensing block is The vertical projection is located outside the area where the multiple light-emitting units of the corresponding light-emitting points are located.
  • the present invention can increase the transmittance of the light-transmitting area on the basis of ensuring the normal touch function of the light-transmitting area.
  • FIG. 1 is a schematic cross-sectional structure diagram of an OLED display device of the present invention.
  • FIG. 2 is a schematic partial top view of the OLED display device of the present invention in the light-transmitting area
  • FIG. 3 is a schematic partial top view of the OLED display device of the present invention in the display area
  • Figure 4 is a partial enlarged schematic diagram of M in Figure 2;
  • Fig. 5 is a partial enlarged schematic diagram of position N in Fig. 2.
  • the present invention provides an OLED display device, which includes a substrate 10, a light-emitting function layer 20, and a touch layer 30 arranged in sequence.
  • the substrate 10 includes a transparent region 11 and a display region 12 adjacent to the transparent region 11.
  • the light-emitting function layer 20 includes a plurality of light-emitting points 21 arranged in an array in the light-transmitting area 11, and each light-emitting point 21 includes a plurality of light-emitting units 211 arranged in an array.
  • the touch layer 30 includes a plurality of touch electrodes 31 arranged in an array.
  • the plurality of touch electrodes 31 includes a plurality of transmitting electrodes 311 and a plurality of receiving electrodes 312 alternately arranged in sequence, and adjacent transmitting electrodes 311 and receiving electrodes 312 are spaced apart.
  • the touch electrode 31 disposed corresponding to the light-transmitting area 11 includes a first part A.
  • the first part A includes a plurality of sensing blocks A1 and a plurality of sensing traces A2 arranged in an array in the transparent region 11. Two adjacent sensing blocks A1 in the same row of sensing blocks A1 are connected via at least one sensing trace A2. Two adjacent sensing blocks A1 in the same row of sensing blocks A1 are connected via at least one sensing trace A2.
  • Each sensing block A1 is correspondingly arranged above a light-emitting point 21, each sensing block A1 has a grid-like structure, and the vertical projection of each sensing block A1 is located at the multiple light-emitting units of the corresponding light-emitting point 21 Outside the area where 211 is located.
  • the first part A of one touch electrode 31 is closest to the other touch electrode 31
  • the plurality of sensing blocks A1 are respectively arranged in one-to-one correspondence with the plurality of sensing blocks A1 closest to the one touch electrode 31 in the first part A of the other touch electrode 31, and the two correspondingly arranged sensing blocks A1 are located at Above the same luminous point 21.
  • each touch electrode 31 is set close to the edge of the other touch electrode 31
  • One end of each extension A3 is connected to a sensing block A1, and the other end extends away from the first part A where it is located.
  • Each extension A3 includes multiple parallel and spaced extensions. Line A31, the lengths of the multiple extension traces A31 in each extension A3 are different, and the multiple extensions A3 of the first part A of each touch electrode 31 are respectively larger than those of the first part A of the other touch electrode 31.
  • the extensions A3 correspond one-to-one, and the multiple extension traces A31 of one of the two corresponding extensions A3 are respectively arranged opposite to the multiple extension traces A31 of the other, so as to enhance the neighboring and respectively communicate with the
  • the light area 11 corresponds to the capacitance formed between the two touch electrodes 31 provided.
  • the grid line width of the sensing block A1 is smaller than the width of the sensing trace A2.
  • the width of the extension trace A31 is equal to the width of the sensing trace A2, so that the trace density of the first part A can be increased.
  • the angle between the row direction of the plurality of light-emitting units 211 in the light-emitting point 21 and the row direction of the plurality of sensing blocks A1 in the first part A is 45°.
  • the row direction of the multiple light-emitting units 211 in the light-emitting point 21 is consistent with the row direction of the multiple touch electrodes 21.
  • the extending direction of each sensing trace A2 is consistent with the row direction or column direction of the plurality of sensing blocks A1 in the first part A.
  • the extension direction of each extension trace A31 is consistent with the column direction of the plurality of sensing blocks A1 in the first part A.
  • the touch electrode 31 provided corresponding to the light-transmitting area 11 further includes a second portion B located in the display area 12 and connected to the first portion A.
  • the second portion B is provided with a plurality of first openings B1 arranged in an array.
  • the edges of the multiple touch electrodes 31 located outside the light-transmitting area 11 are all in a zigzag structure. Outside the light-transmitting area 11, the edges of any two adjacent touch electrodes 31 are In combination, the capacitance formed between adjacent touch electrodes 31 is increased.
  • each touch electrode 31 except for the touch electrode 31 provided corresponding to the light-transmitting area 11 is provided with a plurality of second openings 319 arranged in an array.
  • the OLED display device further includes a thin film transistor array layer 40 disposed between the light emitting function layer 20 and the substrate 10, and a thin film package disposed between the light emitting function layer 20 and the touch layer 30 Layer 50.
  • the thin film transistor array layer 40 includes array wiring (not shown), and the array wiring specifically includes data lines, scan lines, etc., provided in the thin film transistor array layer in the prior art.
  • the first part A is located above the array wiring, so as to maximize the transmittance of the OLED display device in the light-transmitting area 11.
  • the substrate 10 may include a rigid layer and a flexible layer (not shown) arranged in sequence, the material of the rigid layer may be glass, and the material of the flexible layer may be polyimide.
  • the light-emitting functional layer 20 includes a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer that are sequentially arranged.
  • a pixel definition layer (not shown) is provided on the thin film transistor array layer 40, and the pixel definition layer is provided with a plurality of pixel definition grooves located in the light-transmitting area 11, and a plurality of light emitting units 211 are respectively located in the Each pixel defines the slot.
  • the light-emitting function layer 20 of the OLED display device of the present invention includes a plurality of light-emitting points 21 arranged in an array in the light-transmitting area 11, and each light-emitting point 21 includes a plurality of light-emitting units 211 arranged in an array.
  • the control layer 30 includes a plurality of touch electrodes 31 arranged in an array, and the touch electrodes 31 arranged corresponding to the light-transmitting area 11 include a first portion A that includes the array arranged in the light-transmitting area 11 A plurality of sensing blocks A1 and a plurality of sensing traces A2, the two adjacent sensing blocks A1 in the same row of sensing blocks A1 are connected by at least one sensing trace A2, and the sensing blocks A1 in the same row Two adjacent sensing blocks A1 are connected by at least one sensing trace A2.
  • Each sensing block A1 is correspondingly arranged above a light-emitting point 21.
  • Each sensing block A1 is in a grid structure.
  • the vertical projection of the measuring block A1 is located outside the area where the multiple light-emitting units 211 of the corresponding light-emitting point 21 are located, so that the touch electrode 31 provided corresponding to the light-transmitting area 11 in the present invention reduces the design of virtual patterns.
  • the capacitance between the transmitting electrode 311 and the receiving electrode 312 is ensured, and on the basis of ensuring the normal touch function of the light-transmitting area 11, the transmittance of the light-transmitting area 11 is significantly increased.
  • the first part A of the touch electrode 31 corresponding to the area 11 is arranged above the array traces of the thin film transistor array layer 40, which minimizes the influence of the first part A on the transmittance of the light-transmitting area 11, and finally effectively improves
  • the transmittance of the OLED display device in the light-transmitting area 11 is beneficial to the realization of the CUP technology and the realization of a comprehensive screen design.
  • the light-emitting function layer of the OLED display device of the present invention includes a plurality of light-emitting points arranged in an array in the light-transmitting area, each light-emitting point includes a plurality of light-emitting units arranged in an array, and the touch layer includes an array array.
  • the touch electrodes arranged corresponding to the light-transmitting area include a first part, and the first part includes a plurality of sensing blocks and a plurality of sensing traces arranged in an array.
  • each sensing block is correspondingly arranged above a light-emitting point, each sensing block has a grid structure, and each sensing block The projection in the vertical direction is located outside the area where the multiple light-emitting units of the corresponding light-emitting points are located.
  • the present invention can increase the transmittance of the light-transmitting area on the basis of ensuring the normal touch function of the light-transmitting area.

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Abstract

本发明提供一种OLED显示装置。本发明的OLED显示装置的发光功能层包括于透光区内阵列排布的多个发光点，每一发光点包括阵列排布的多个发光单元，触控层包括阵列排布的多个触控电极，与透光区对应设置的触控电极包括第一部分，第一部分包括阵列排布的多个感测块及多条感测走线，同一行及同一列感测块中相邻的两个感测块经至少一条感测走线相连接，每一感测块对应设于一发光点上方，每一感测块呈网格状结构，每一感测块在竖直方向的投影位于对应的发光点的多个发光单元所在区域外侧。本发明能够在保证透光区的触控功能正常的基础上，增加透光区的透过率。

Description

OLED显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种OLED显示装置。
 背景技术
在显示技术领域，有机发光二极管（Organic Light-Emitting Diode，OLED）显示器等平板显示装置具有机身薄、省电、无辐射等众多优点，得到了广泛的应用，已经逐步取代阴极射线管（Cathode Ray Tube，CRT）显示装置。
OLED通常包括：基板、设于基板上的阳极、设于阳极上的空穴注入层（HIL）、设于空穴注入层上的空穴传输层（HTL）、设于空穴传输层上的发光层、设于发光层上的电子传输层（ETL）、设于电子传输层上的电子注入层（EIL）及设于电子注入层上的阴极。OLED显示器件的发光原理为半导体材料和有机发光材料在电场驱动下，通过载流子注入和复合导致发光。
现有的一种采用触控层直接设置于OLED面板上（Direct On-cell Touch，DOT）技术的OLED显示装置包括依次设置的玻璃基板、聚酰亚胺（PI）膜、薄膜晶体管（TFT）阵列层、发光功能层、薄膜封装层、以及触控层，触控层包括阵列排布的多个触控电极，多个触控电极包括依次交替设置的发射电极及接收电极，相邻的接收电极之间直接连接，相邻的发射电极之间通过与多个触控电极异层设置的桥接部连接，从而实现触控功能。
随着显示技术的不断发展，全面屏设计的显示装置越来越受到消费者的青睐，为了实现全面屏设计，面板下设置摄像头（camera under panel，CUP）技术开始出现在人们的视野。所谓CUP技术是指将摄像头设置在OLED显示面板的背面，同时在OLED显示面板中设置与摄像头对应的透光区，不使用摄像头时，透光区可以正常进行显示及触控，需要使用摄像头时，光线能够透过透光区射入摄像头内便于成像。因此，透光区不仅仅需要设置有能够进行显示的像素单元，同时也需要具有较高的透过率，现有的同时采用CUP技术及DOT技术的OLED显示装置中透光区域内的触控层严重影响了透光区的透过率。
 技术问题
本发明的目的在于提供一种OLED显示装置，能够在保证透光区的触控功能正常的基础上，增加透光区的透过率。
 技术解决方案
为实现上述目的，本发明提供一种OLED显示装置，包括依次设置的衬底、发光功能层及触控层；
所述衬底包括透光区及与透光区相邻的显示区；所述发光功能层包括于透光区内阵列排布的多个发光点，每一发光点包括阵列排布的多个发光单元；所述触控层包括阵列排布的多个触控电极；多个触控电极包括依次交替设置的多个发射电极及多个接收电极，相邻的发射电极与接收电极相间隔；
与所述透光区对应设置的触控电极包括第一部分；所述第一部分包括位于透光区内的阵列排布的多个感测块及多条感测走线；同一行感测块中相邻的两个感测块经至少一条感测走线相连接；同一列感测块中相邻的两个感测块经至少一条感测走线相连接；每一感测块对应设于一发光点上方，每一感测块呈网格状结构，每一感测块在竖直方向的投影位于对应的发光点的多个发光单元所在区域外侧。
对于两个相邻且分别与所述透光区对应设置的触控电极，其中一个触控电极的第一部分中最靠近另一个触控电极的多个感测块分别与该另一个触控电极的第一部分中最靠近该一个触控电极的多个感测块一一对应设置，对应设置的两个感测块位于同一发光点上方。
对于两个相邻且分别与所述透光区对应设置的触控电极，每一触控电极的第一部分靠近另一个触控电极的边缘设有多个延长部，每一延长部的一端均与一感测块连接，另一端向远离其所在的第一部分的方向延伸，每一延长部包括多条平行间隔的延长走线，每一延长部中的多条延长走线的长度不同，每一触控电极的第一部分的多个延长部分别与另一触控电极的第一部分的多个延长部一一对应，相对应的两个延长部中的一个的多条延长走线分别与另一个的多条延长走线相对设置。
所述感测块的网格线宽小于感测走线的宽度；所述延长走线的宽度等于感测走线的宽度。
所述发光点中多个发光单元的行方向与第一部分中多个感测块的行方向之间的夹角为45°；
所述发光点中多个发光单元的行方向与多个触控电极的行方向一致；
每一感测走线的延伸方向与第一部分中多个感测块的行方向或列方向一致；
每一延长走线的延伸方向与第一部分中多个感测块的列方向一致。
与所述透光区对应设置的触控电极还包括位于显示区内且与第一部分连接的第二部分；所述第二部分设有阵列排布的多个第一开口。
多个触控电极位于透光区外的边缘均为锯齿状结构；在透光区外，任意两个相邻的触控电极的边缘相配合。
除了与所述透光区对应设置的触控电极外的每一触控电极设有阵列排布的多个第二开口。
所述OLED显示装置还包括设于发光功能层与衬底之间的薄膜晶体管阵列层及设于发光功能层与触控层之间的薄膜封装层。
所述薄膜晶体管阵列层包括阵列走线，所述第一部分位于阵列走线上方。
 有益效果
本发明的有益效果：本发明的OLED显示装置的发光功能层包括于透光区内阵列排布的多个发光点，每一发光点包括阵列排布的多个发光单元，触控层包括阵列排布的多个触控电极，与透光区对应设置的触控电极包括第一部分，第一部分包括阵列排布的多个感测块及多条感测走线，同一行及同一列感测块中相邻的两个感测块经至少一条感测走线相连接，每一感测块对应设于一发光点上方，每一感测块呈网格状结构，每一感测块在竖直方向的投影位于对应的发光点的多个发光单元所在区域外侧。本发明能够在保证透光区的触控功能正常的基础上，增加透光区的透过率。
 附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明的OLED显示装置的剖视结构示意图；
图2为本发明的OLED显示装置在透光区的局部俯视示意图；
图3为本发明的OLED显示装置在显示区的局部俯视示意图；
图4为图2中M处的局部放大示意图；
图5为图2中N处的局部放大示意图。
 本发明的实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1至图5，本发明提供一种OLED显示装置，包括依次设置的衬底10、发光功能层20及触控层30。
所述衬底10包括透光区11及与透光区11相邻的显示区12。所述发光功能层20包括于透光区11内阵列排布的多个发光点21，每一发光点21包括阵列排布的多个发光单元211。所述触控层30包括阵列排布的多个触控电极31。多个触控电极31包括依次交替设置的多个发射电极311及多个接收电极312，相邻的发射电极311与接收电极312相间隔。
与所述透光区11对应设置的触控电极31包括第一部分A。所述第一部分A包括位于透光区11内的阵列排布的多个感测块A1及多条感测走线A2。同一行感测块A1中相邻的两个感测块A1经至少一条感测走线A2相连接。同一列感测块A1中相邻的两个感测块A1经至少一条感测走线A2相连接。每一感测块A1对应设于一发光点21上方，每一感测块A1呈网格状结构，每一感测块A1在竖直方向的投影位于对应的发光点21的多个发光单元211所在区域外侧。
具体地，请结合图5，对于两个相邻且分别与所述透光区11对应设置的触控电极31，其中一个触控电极31的第一部分A中最靠近另一个触控电极31的多个感测块A1分别与该另一个触控电极31的第一部分A中最靠近该一个触控电极31的多个感测块A1一一对应设置，对应设置的两个感测块A1位于同一发光点21上方。
具体地，请结合图5，对于两个相邻且分别与所述透光区11对应设置的触控电极31，每一触控电极31的第一部分A靠近另一个触控电极31的边缘设有多个延长部A3，每一延长部A3的一端均与一感测块A1连接，另一端向远离其所在的第一部分A的方向延伸，每一延长部A3包括多条平行间隔的延长走线A31，每一延长部A3中的多条延长走线A31的长度不同，每一触控电极31的第一部分A的多个延长部A3分别与另一触控电极31的第一部分A的多个延长部A3一一对应，相对应的两个延长部A3中的一个的多条延长走线A31分别与另一个的多条延长走线A31相对设置，从而增强相邻且分别与所述透光区11对应设置的两个触控电极31之间形成的电容值。
优选地，所述感测块A1的网格线宽小于感测走线A2的宽度。所述延长走线A31的宽度等于感测走线A2的宽度，从而能够增加第一部分A的走线密度。
优选地，请参阅图2及图4，所述发光点21中多个发光单元211的行方向与第一部分A中多个感测块A1的行方向之间的夹角为45°。所述发光点21中多个发光单元211的行方向与多个触控电极21的行方向一致。每一感测走线A2的延伸方向与第一部分A中多个感测块A1的行方向或列方向一致。每一延长走线A31的延伸方向与第一部分A中多个感测块A1的列方向一致。
具体地，请参阅图2，与所述透光区11对应设置的触控电极31还包括位于显示区12内且与第一部分A连接的第二部分B。所述第二部分B设有阵列排布的多个第一开口B1。
具体地，请参阅图2及图3，多个触控电极31位于透光区11外的边缘均为锯齿状结构，在透光区11外，任意两个相邻的触控电极31的边缘相配合，从而增加相邻的触控电极31之间形成的电容值。
具体地，请参阅图3，除了与所述透光区11对应设置的触控电极31外的每一触控电极31设有阵列排布的多个第二开口319。
具体地，请参阅图1，所述OLED显示装置还包括设于发光功能层20与衬底10之间的薄膜晶体管阵列层40及设于发光功能层20与触控层30之间的薄膜封装层50。进一步地，所述薄膜晶体管阵列层40包括阵列走线（未图示），该阵列走线具体包括现有技术中薄膜晶体管阵列层中设置的数据线、扫描线等等。所述第一部分A位于阵列走线上方，从而最大限度地提升OLED显示装置在透光区11的透过率。
具体地，所述衬底10可包括依次设置的刚性层及柔性层（未图示），刚性层材料可以为玻璃，柔性层的材料可以为聚酰亚胺。
具体地，所述发光功能层20包括依次设置的空穴注入层、空穴传输层、发光层、电子传输层及电子注入层。
进一步地，所述薄膜晶体管阵列层40上设有像素定义层（未图示），所述像素定义层设有位于透光区11内的多个像素定义槽，多个发光单元211分别位于多个像素定义槽内。
需要说明的是，本发明的OLED显示装置的发光功能层20包括于透光区11内阵列排布的多个发光点21，每一发光点21包括阵列排布的多个发光单元211，触控层30包括阵列排布的多个触控电极31，与所述透光区11对应设置的触控电极31包括第一部分A，所述第一部分A包括位于透光区11内的阵列排布的多个感测块A1及多条感测走线A2，同一行感测块A1中相邻的两个感测块A1经至少一条感测走线A2相连接，同一列感测块A1中相邻的两个感测块A1经至少一条感测走线A2相连接，每一感测块A1对应设于一发光点21上方，每一感测块A1呈网格状结构，每一感测块A1在竖直方向的投影位于对应的发光点21的多个发光单元211所在区域外侧，从而本发明中与所述透光区11对应设置的触控电极31减少了虚拟图案的设计，保证了发射电极311及接收电极312之间的电容，在保证透光区11的触控功能正常的基础上，显著地增加透光区11的透过率，进而，本发明中将与透光区11对应设置的触控电极31的第一部分A设置在薄膜晶体管阵列层40的阵列走线上方，最大限度地降低了第一部分A对透光区11透过率的影响，最终有效地提升了OLED显示装置在透光区11内的透过率，从而有利于CUP技术的实现，有利于实现全面屏设计。
综上所述，本发明的OLED显示装置的发光功能层包括于透光区内阵列排布的多个发光点，每一发光点包括阵列排布的多个发光单元，触控层包括阵列排布的多个触控电极，与所述透光区对应设置的触控电极包括第一部分，第一部分包括阵列排布的多个感测块及多条感测走线，同一行及同一列感测块中相邻的两个感测块经至少一条感测走线相连接，每一感测块对应设于一发光点上方，每一感测块呈网格状结构，每一感测块在竖直方向的投影位于对应的发光点的多个发光单元所在区域外侧。本发明能够在保证透光区的触控功能正常的基础上，增加透光区的透过率。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种OLED显示装置，包括依次设置的衬底、发光功能层及触控层；
    所述衬底包括透光区及与透光区相邻的显示区；所述发光功能层包括于透光区内阵列排布的多个发光点，每一发光点包括阵列排布的多个发光单元；所述触控层包括阵列排布的多个触控电极；多个触控电极包括依次交替设置的多个发射电极及多个接收电极，相邻的发射电极与接收电极相间隔；
    与所述透光区对应设置的触控电极包括第一部分；所述第一部分包括位于透光区内的阵列排布的多个感测块及多条感测走线；同一行感测块中相邻的两个感测块经至少一条感测走线相连接；同一列感测块中相邻的两个感测块经至少一条感测走线相连接；每一感测块对应设于一发光点上方，每一感测块呈网格状结构，每一感测块在竖直方向的投影位于对应的发光点的多个发光单元所在区域外侧。
  2. 如权利要求1所述的OLED显示装置，其中，对于两个相邻且分别与所述透光区对应设置的触控电极，其中一个触控电极的第一部分中最靠近另一个触控电极的多个感测块分别与该另一个触控电极的第一部分中最靠近该一个触控电极的多个感测块一一对应设置，对应设置的两个感测块位于同一发光点上方。
  3. 如权利要求1所述的OLED显示装置，其中，对于两个相邻且分别与所述透光区对应设置的触控电极，每一触控电极的第一部分靠近另一个触控电极的边缘设有多个延长部，每一延长部的一端均与一感测块连接，另一端向远离其所在的第一部分的方向延伸，每一延长部包括多条平行间隔的延长走线，每一延长部中的多条延长走线的长度不同，每一触控电极的第一部分的多个延长部分别与另一触控电极的第一部分的多个延长部一一对应，相对应的两个延长部中的一个的多条延长走线分别与另一个的多条延长走线相对设置。
  4. 如权利要求3所述的OLED显示装置，其中，所述感测块的网格线宽小于感测走线的宽度；所述延长走线的宽度等于感测走线的宽度。
  5. 如权利要求3所述的OLED显示装置，其中，所述发光点中多个发光单元的行方向与第一部分中多个感测块的行方向之间的夹角为45°；
    所述发光点中多个发光单元的行方向与多个触控电极的行方向一致；
    每一感测走线的延伸方向与第一部分中多个感测块的行方向或列方向一致；
    每一延长走线的延伸方向与第一部分中多个感测块的列方向一致。
  6. 如权利要求1所述的OLED显示装置，其中，与所述透光区对应设置的触控电极还包括位于显示区内且与第一部分连接的第二部分；所述第二部分设有阵列排布的多个第一开口。
  7. 如权利要求1所述的OLED显示装置，其中，多个触控电极位于透光区外的边缘均为锯齿状结构；在透光区外，任意两个相邻的触控电极的边缘相配合。
  8. 如权利要求1所述的OLED显示装置，其中，除了与所述透光区对应设置的触控电极外的每一触控电极设有阵列排布的多个第二开口。
  9. 如权利要求1所述的OLED显示装置，还包括设于发光功能层与衬底之间的薄膜晶体管阵列层及设于发光功能层与触控层之间的薄膜封装层。
  10. 如权利要求9所述的OLED显示装置，其中，所述薄膜晶体管阵列层包括阵列走线，所述第一部分位于阵列走线上方。
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