CN107731865A - OLED display - Google Patents
OLED display Download PDFInfo
- Publication number
- CN107731865A CN107731865A CN201710434485.9A CN201710434485A CN107731865A CN 107731865 A CN107731865 A CN 107731865A CN 201710434485 A CN201710434485 A CN 201710434485A CN 107731865 A CN107731865 A CN 107731865A
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- electrode
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- oled display
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- pressure
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- 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
-
- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- 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
Abstract
A kind of OLED display, it includes a first electrode layer, a luminescent layer and the second electrode lay being cascading, the second electrode lay forms the anode of the luminescent layer, and the first electrode layer is multiplexed with the negative electrode of the luminescent layer, the touch-control sensing electrode and pressure-sensing electrode of the OLED display；The OLED display also includes one the 3rd electrode layer, and the first electrode layer forms a pressure-sensing module with the 3rd electrode layer.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of OLED display.
Background technology
Compared, Organic Light Emitting Diode (Organic with liquid crystal display (Liquid Crystal Display, LCD)
Light-emitting Diode, OLED) display has the advantages that self-luminous, wide viewing angle and fast response time.Mobile whole
Hold in application field, OLED display has started to substitute traditional LCD, integrates the OLED display of touch controllable function and turns into and works as
The study hotspot of modern display field, and as pressure-sensing function is commonly used in field of mobile terminals, it is badly in need of providing one
Kind integrates the technical scheme of the touch control display apparatus of pressure-sensing function simultaneously.
The content of the invention
In view of the foregoing, it is necessary to provide a kind of OLED display, the OLED display integrates touch-control work(simultaneously
Can be with pressure-sensing function.
A kind of OLED display, it includes a first electrode layer, a luminescent layer and one second electricity being cascading
Pole layer, the second electrode lay form the anode of the luminescent layer, and the first electrode layer is multiplexed with the negative electrode of the luminescent layer, the OLED shows
The touch-control sensing electrode and pressure-sensing electrode of showing device；The OLED display also includes one the 3rd electrode layer, first electricity
Pole layer forms a pressure-sensing module with the 3rd electrode layer.
The negative electrode concurrent multiplexing of OLED display is the negative electrode of the luminescent layer by the present invention, the OLED display is touched
Sensing electrode and pressure-sensing electrode are controlled, it is ingenious in design, it is simple in construction.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation of the OLED display of first embodiment of the invention.
Fig. 2 is the plane figure schematic diagram of pixel cell.
Fig. 3 is the plane figure schematic diagram of first electrode layer in Fig. 1.
Fig. 4 is the diagrammatic cross-section of OLED display in Fig. 1.
Fig. 5 is the diagrammatic cross-section of the OLED display of second embodiment of the invention.
Fig. 6 is the diagrammatic cross-section of the OLED display of third embodiment of the invention.
Fig. 7 is plane figure signal of the present invention the 4th to the first electrode layer of the OLED display of sixth embodiment
Figure.
Main element symbol description
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
Referring to Fig. 1, Fig. 1 is the decomposing schematic representation of the OLED display 1 of first embodiment of the invention.The OLED is shown
Device 1 includes first substrate 11, first electrode layer 12, luminescent layer 13, the second electrode lay 14, the film crystal being cascading
Tube layer 15 (Thin Film Transistor, TFT), the electrode layer 17 of second substrate 16 and the 3rd.The luminescent layer 13 includes array
Multiple luminescence units 130 of distribution, the anode of the second electrode lay 14 as the luminescent layer 13, including arranged in array spacings
Multiple pixel electrodes 140, each luminescence unit 130 are correspondingly arranged with a pixel electrode 140.Generally, the luminescent layer 13 includes
Electron injecting layer, electron transfer layer, organic luminous layer, hole transmission layer and the hole injection layer (figure does not show) being stacked,
Wherein, the electron injecting layer is closer to first electrode layer 12, and the hole injection layer is closer to the second electrode lay 14.The first electrode
Layer 12 is multiplexed with the negative electrode of the luminescent layer 13, the touch-control sensing electrode and pressure-sensing electrode of the OLED display 1, and this first
Electrode layer 12 forms a pressure-sensing module with the 3rd electrode layer 17.The first electrode layer 12 is the negative electrode of the luminescent layer 13,
The second electrode lay 14 is the anode of the luminescent layer 13.The tft layer 15 includes multiple TFT (not shown), each TFT
Electrically connected with a pixel electrode 140, driving current is provided for the pixel electrode 140.In the present embodiment, the first electrode layer
12 be multiplexed with by way of working at times the negative electrode of the luminescent layer 13, the OLED display 1 touch-control sensing electrode and
Pressure-sensing electrode.
Each pixel electrode 140 is correspondingly arranged with a luminescence unit 130.Also referring to Fig. 2, per several pixels
Electrode 140 and its corresponding luminescence unit 130 form a pixel cell 150, and the OLED display 1 includes multiple pixel lists
Member 150.Fig. 2 is the plane figure schematic diagram of pixel cell 150.The multiple pixel cell 150 D1 and second in the first direction
Direction D2 is arranged in array.In the present embodiment, a pixel cell 150 includes three pixel electrodes 140, three pixels
Electrode 140 control respectively corresponding to luminescence unit 130 send three primary colors (R, G, B) light.In the present embodiment, the first direction
D1 is substantially vertical with second direction D2.
Also referring to Fig. 3, Fig. 3 is the plane figure schematic diagram of first electrode layer 12.The first electrode layer 12 includes edge
Multiple first electrodes 121 that first direction D1 and second direction D2 are arranged in array.The distribution of the multiple first electrode 121 with
The distribution of the multiple pixel cell 150 has corresponding relation.In the present embodiment, each first electrode 121 is in a first direction
Total spanning length of the length with N number of pixel cell 150 in the first direction on D1 on D1 is suitable, and each first electrode 121 is
Two direction D2 length L2 and a pixel cell 150 D2 in a second direction length are suitable.Each first electrode 121 passes through one
Root wire 123 is connected to IC circuits 10, forms the touch-control sensing electrode of self-tolerant.Wherein, N is natural number.N numerical value depends on
The touch-control resolution ratio of the OLED display 1, touch-control resolution ratio is higher, and the distribution density of first electrode 121 is bigger, N numerical value
It is smaller.And N numerical value determines the area of first electrode 121 and the spacing P of two neighboring touch-control sensing electrode centers,
N is bigger, and spacing P is bigger.In the present embodiment, N span is to be less than or equal to 60 more than or equal to 40.The present invention is using single
Layer self-tolerant touch-control sensing technology, the IC circuits 10 carry out electric control by wire 123 to each first electrode 121 respectively, when
When conductor (such as human body) touch on the first substrate 11 be present, the quantity of electric charge in first electrode 121 corresponding with touch location
Change and export electric signal, the IC circuits 10 realize touch-sensing function according to the electric signal.
Referring to Fig. 4, Fig. 4 is the cross-sectional view of OLED display 1 in Fig. 1.In the present embodiment, the 3rd
Electrode layer 17 is the center of a metal frame, the i.e. OLED display 1, is deposited between the 3rd electrode layer 17 and the second substrate 16
In a air gap 18 (air gap), the first electrode layer 12, the 3rd electrode layer 17 coordinate with the air gap 18 forms one
Capacitive pressure-sensing device 20, realizes pressure-sensing function.When the first substrate 11 is depressed, the 3rd electrode layer
Structure on 17, i.e. first substrate 11, first electrode layer 12, luminescent layer 13, the second electrode lay 14, tft layer 15 and
Two substrates 16 are towards the Direction distortion of the air gap 18, the spacing hair between the electrode layer 17 of first electrode layer 12 and the 3rd
Changing so that the capacitance for the electric capacity that the first electrode layer 12 is formed with the 3rd electrode layer 17 changes, the feeling of stress
Survey device 20 and pressure-sensing, output pressure sensing signal are carried out according to the change of the capacitance.
Position of the pressure-sensing device 20 in the OLED display 1 can carry out numerous variations.
Referring to Fig. 5, Fig. 5 is the diagrammatic cross-section of the OLED display 2 of second embodiment of the invention.The OLED is shown
The structure of the structure of device 2 and the OLED display 1 is essentially identical, and it distinguishes the position for essentially consisting in the 3rd electrode layer 17
It is different.In the present embodiment, the 3rd electrode layer 17 does not borrow the center of the OLED display 2, but to be arranged on this
Transparent conductive semiconductor film between first substrate 11 and the first electrode layer 12, the transparent conductive semiconductor film can be indium oxide
Tin (ITO).And the OLED display 2 also includes an elastic insulating layer 19, the 3rd electrode layer 17, elastic insulating layer 19 and
One electrode layer 12 is cascading and forms the pressure-sensing device 20.When the first substrate 11 is depressed, the elasticity
Insulating barrier 19 is squeezed and deformed upon so that the electric capacity for the electric capacity that the first electrode layer 12 is formed with the 3rd electrode layer 17
Value changes, and the pressure-sensing device 20 carries out pressure-sensing, output pressure sensing signal according to the change of the capacitance.
Referring to Fig. 6, Fig. 6 is the diagrammatic cross-section of the OLED display 3 of third embodiment of the invention.The OLED is shown
The structure of the structure of device 3 and the OLED display 2 is essentially identical, and its difference essentially consists in the 3rd electrode layer 17 and elasticity
The position of insulating barrier 19.3rd electrode layer 17 is also without the center for borrowing the OLED display 3, but for be arranged on this thin
Transparent conductive metal oxide layer between film transistor layer 15 and the second substrate 16.The elastic insulating layer 19 is arranged at this
Between the electrode layer 17 of tft layer 15 and the 3rd.The pressure-sensing device 20 is exhausted by the first electrode layer 12, the elasticity
The electrode layer 17 of edge layer 19 and the 3rd is formed.When the first substrate 11 is depressed, the elastic insulating layer 19 be squeezed and
Deform upon so that the capacitance for the electric capacity that first electrode 121 is formed with the 3rd electrode layer 17 changes, the pressure-sensing
Device 20 carries out pressure-sensing, output pressure sensing signal according to the change of the capacitance.
Ground is changed, referring to Fig. 7, Fig. 7 is the OLED display (not shown) that the present invention the 4th arrives sixth embodiment
First electrode layer 12 plane figure schematic diagram.Wherein, the OLED display of fourth embodiment and the OLED display 1
Structure it is essentially identical, its distinguish essentially consist in the first electrode layer 12 structure it is different.The OLED display dresses of 5th embodiment
Put it is essentially identical with the structure of the OLED display 2, its distinguish essentially consist in the first electrode layer 12 structure it is different.6th
The structure of the OLED display of embodiment and the OLED display 3 is essentially identical, and its difference essentially consists in the first electrode
The structure of layer 12 is different.4th is identical to the structure of first electrode layer 12 in the OLED display of sixth embodiment, below will
Describe in detail the 4th to the first electrode layer 12 in the OLED display of sixth embodiment structure.For convenience of description, with it is preceding
State embodiment identical element and use identical label, repeat no more below.
In the 4th to sixth embodiment OLED display, the first electrode layer 12 also includes multiple second electrodes
122, the first electrode layer 12 is divided into multiple first electrodes 121 and multiple second electrodes 122 by Physical Extents, the multiple
First electrode 121 serves as touch-control sensing electrode and pressure-sensing electrode, and the multiple second electrode 122 serves as the luminescent layer 13
Negative electrode.
Specifically, the multiple second electrode 122 is set with the multiple first electrode 121 with layer, by same conduction material
The bed of material is formed.The strip that each second electrode 122 extends in D1 in the first direction.The multiple second electrode 122 is substantially flat
Go and D2 is intervally arranged in a second direction.In a second direction d 2, per being folded with one the between two neighboring second electrode 122
One electrode 121, i.e. alternate intervals arrange in a second direction d 2 for the multiple second electrode 122 and multiple first electrodes 121.
121 setting insulated from each other of each second electrode 122 and each first electrode.
Also referring to Fig. 2 and Fig. 7, the distribution of the first electrode layer 12 has corresponding with the distribution of the pixel cell 150
Relation.Each first electrode 121 and second electrode 122 adjacent thereto in a second direction d 2 in a second direction d 2 always across
More length L3 is suitable with length L of the pixel cell 150 in a second direction on D2 on the second electrode lay 14, wherein, Mei Ge
/ 3rd phases of one electrode 121 in second direction D2 length and each pixel cell 150 D2 length L1 in a second direction
When.Each first electrode 121 in a first direction D1 length with N number of pixel cell 150 on the second electrode lay 14 in the first direction
D1 total spanning length is suitable, correspondingly, is electrically connected by wire 123 per adjacent N number of first electrode 121 on second direction D2
Connect, form a touch control electrode 120 (as shown in Fig. 7 dotted line frames), each touch control electrode 120 is connected to IC electricity by wire 123
Road 10.Wherein, N is natural number.In the present embodiment, N span is to be less than or equal to 60 more than or equal to 40.N numerical value takes
Certainly in the touch-control resolution ratio of the OLED display 1, touch-control resolution ratio is higher, and the distribution density of first electrode 121 is bigger, N's
Numerical value is smaller.And N numerical value determines the distribution area of touch control electrode 120 and two neighboring touch-control sensing electrode centers
Spacing P), N is bigger, and spacing P is bigger.
In above-mentioned 4th OLED display to sixth embodiment, the first electrode layer is divided by Physical Extents
12, the display function of the OLED display 1 can be realized simultaneously with touch controllable function (or pressure-sensing function), from without sacrificial
Domestic animal shows the working time in stage, avoids display effect from being influenceed by touch controllable function (or pressure-sensing function).Specifically, it is described
Multiple first electrodes 121 serve as touch-control sensing electrode and pressure-sensing electrode by time-sharing multiplex, described in the touch-control sensing stage
The touch control electrode that multiple first electrodes 121 serve as self-tolerant touch-control sensing realizes touch-control sensing function；In the pressure-sensing stage, institute
Stating multiple first electrodes 121 coordinates the 3rd electrode layer 17 to realize pressure-sensing function.The multiple second electrode 122 serves as this
The negative electrode of luminescent layer 13.
The preferred embodiments of the present invention already described above, but those skilled in the art once know basic creativeness generally
Read, then other change and modification can be made to these embodiments.If these changes belong to the claims in the present invention with modification
Extremely equivalent technologies scope, then the present invention be also intended to comprising these change and modification.
Claims (10)
1. a kind of OLED display, it includes a first electrode layer, a luminescent layer and the second electrode being cascading
Layer, the second electrode lay form the anode of the luminescent layer, it is characterised in that：The first electrode layer is multiplexed with the moon of the luminescent layer
Pole, the touch-control sensing electrode and pressure-sensing electrode of the OLED display；The OLED display also includes one the 3rd electrode
Layer, the first electrode layer form a pressure-sensing module with the 3rd electrode layer.
2. OLED display as claimed in claim 1, it is characterised in that：The first electrode layer is included in the first direction with the
Two directions are in multiple first electrodes of array spacings arrangement, and the multiple first electrode time-sharing multiplex is the OLED display
Touch-control sensing electrode and pressure-sensing electrode.
3. OLED display as claimed in claim 2, it is characterised in that：3rd electrode layer is a metal frame, the metal
Frame is arranged at side of the second electrode lay away from the first electrode layer, and has one between the metal frame and the second electrode lay
The air gap, the multiple first electrode, the air gap and the 3rd electrode layer form the pressure-sensing module.
4. OLED display as claimed in claim 2, it is characterised in that：The OLED display also includes a first substrate
With an elastic insulating layer, the first substrate, the 3rd electrode layer and the elastic insulating layer stack gradually remote located at the first electrode layer
From the side of the second electrode lay, and the elastic insulating layer is closer to the first electrode layer；The multiple first electrode, elasticity are absolutely
Edge layer and the 3rd electrode layer form the pressure-sensing module.
5. OLED display as claimed in claim 2, it is characterised in that：The OLED display also includes a first substrate
With an elastic insulating layer, the elastic insulating layer, the 3rd electrode layer and the first substrate stack gradually remote located at the second electrode lay
From the side of the first electrode layer, and the elastic insulating layer is closer to the second electrode lay；The first electrode layer, elastic insulating layer
And the 3rd electrode layer form the pressure-sensing module.
6. the OLED display as described in claim 2~5 any one, it is characterised in that：The second electrode lay includes edge
Multiple pixel electrodes of the first direction and the second direction array arrangement, the luminescent layer include multiple luminescence units, each picture
Plain electrode is correspondingly arranged with a luminescence unit, and per several pixel electrodes and its corresponding luminescence unit forms a pixel list
Member；The each length of first electrode in the first direction is suitable along total spanning length of the first direction with N number of pixel cell.
7. OLED display as claimed in claim 6, it is characterised in that：N span is more than or equal to 40 and is less than
Natural number equal to 60.
8. OLED display as claimed in claim 6, it is characterised in that：The multiple first electrode also time-sharing multiplex is should
The negative electrode of luminescent layer, the total spanning length of each first electrode in a second direction and N number of pixel cell in a second direction on
Total spanning length is suitable.
9. OLED display as claimed in claim 6, it is characterised in that：The first electrode layer also includes the multiple second electricity
Pole, the multiple second electrode are luminous for this with layer and insulation set, the multiple second electrode with the multiple first electrode
The negative electrode of layer；The multiple first electrode and multiple second electrodes are alternately intervally arranged in the second direction.
10. OLED display as claimed in claim 9, it is characterised in that：Each first electrode and in the second direction
Total spanning length in the second direction of second electrode adjacent thereto and a pixel cell are along the length in the second direction
Degree is suitable.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662374084P | 2016-08-12 | 2016-08-12 | |
| US201662374081P | 2016-08-12 | 2016-08-12 | |
| US62/374084 | 2016-08-12 | ||
| US62/374081 | 2016-08-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107731865A true CN107731865A (en) | 2018-02-23 |
| CN107731865B CN107731865B (en) | 2021-04-06 |
Family
ID=61201668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710434485.9A Active CN107731865B (en) | 2016-08-12 | 2017-06-09 | OLED display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107731865B (en) |
| TW (1) | TWI656634B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108829288A (en) * | 2018-06-25 | 2018-11-16 | 昆山国显光电有限公司 | A kind of display device and preparation method thereof |
| CN109101129A (en) * | 2018-07-17 | 2018-12-28 | 武汉华星光电半导体显示技术有限公司 | Pressure sensitivity touch-control display panel and its driving method |
| CN111179768A (en) * | 2019-12-18 | 2020-05-19 | 京东方科技集团股份有限公司 | Display panel, display device and electronic equipment |
| CN111984141A (en) * | 2019-05-24 | 2020-11-24 | 智晶光电股份有限公司 | Touch control display module |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201818537A (en) | 2018-05-16 |
| CN107731865B (en) | 2021-04-06 |
| TWI656634B (en) | 2019-04-11 |
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