CN104409473A - Piezoelectric touch organic light emitting display panel, manufacturing method and organic light emitting display - Google Patents
Piezoelectric touch organic light emitting display panel, manufacturing method and organic light emitting display Download PDFInfo
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- CN104409473A CN104409473A CN201410692162.6A CN201410692162A CN104409473A CN 104409473 A CN104409473 A CN 104409473A CN 201410692162 A CN201410692162 A CN 201410692162A CN 104409473 A CN104409473 A CN 104409473A
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Abstract
The invention relates to a piezoelectric touch organic light emitting display panel, a manufacturing method and an organic light emitting display. The piezoelectric touch organic light emitting display panel comprises a first substrate and a second substrate which are arranged correspondingly, a TFT wiring layer which is arranged on the first substrate and which faces to one side of the second substrate, an OLED lighting layer arranged on the surface of the TFT wiring layer, a pixel definition layer arranged on the surface of the OLED lighting layer, a supporting element arranged on the surface of the pixel definition layer and a piezoelectric touch element arranged on the surface of the support element. Since a piezoelectric touch screen and an OLED panel are integrated, the wight and thickness of the display are reduced greatly, and manufacture cost is saved; since the piezoelectric touch manner is adopted, the display can be touched and controlled by optional items.
Description
Technical field
The present invention relates to technical field of flat panel display, particularly a kind of piezoelectricity touch control organic light-emitting display floater and manufacture method thereof and organic light emitting display.
Background technology
Active matrix/organic light emitting display (English full name Active Matrix Organic Lighting EmittingDisplay, be called for short AMOLED), adopt coating of organic material and it is energized to realize self-luminescence, unlike Thin Film Transistor-LCD (English full name Thin Film Transistor liquid crystal display, be called for short TFT-LCD) need back light system (backlight system) just can light, therefore visibility and brightness are all higher, and more frivolous.Therefore, organic light emitting display technology (OLED technology) obtains the attention of height in technical field of flat panel display.
Touch technology also develops rapidly in recent years, and touch control e product not only can save space, is convenient for carrying, and user just can direct control by finger or pointer etc., uses comfortable, very convenient.Such as, personal digital assistant (PDA), touch-control class mobile phone, portable notebook computer etc. that existing market is common, strengthened the input to touch technology all.The combination of touch technology and OLED technology is a kind of trend that following flat panel display develops.
In-cell touch panel can be divided into resistive touch screen, capacitive touch screen and piezoelectric type touch screen etc. according to touch control manner.Wherein, resistive touch screen wiring congestion, power consumption is large and light transmittance is low.Although capacitive touch screen has higher light transmittance and lower overall power, capacitive touch screen cannot support arbitrary objects touch-control, and contact object can only be human skin or similar material.Compare resistive touch screen and capacitive touch screen, the operation principle of piezoelectric type touch screen is based on piezoelectric effect, therefore particular/special requirement be there is no for the material and shape that contact object, no matter apply active force with the object of any material or any shape to screen, screen can make response in time.
At present, in touch-controllable organic luminescent display structure, organic light-emitting display device and touch-screen (English full name Touch pannel is called for short TP) are assembled after generally making respectively again.This can increase weight and the thickness of display undoubtedly, and runs counter to the advantage of organic light emitting display itself is light, thin.
How in conjunction with the advantage of piezoelectric type touch screen and active matrix/organic light emitting display, active matrix/organic light emitting display is made at the touch-control keeping frivolous basis be supported arbitrary objects, to be those skilled in the art's technical issues that need to address.
Summary of the invention
The object of the present invention is to provide a kind of piezoelectricity touch control organic light-emitting display floater and manufacture method thereof and organic light emitting display, to solve the problems of the prior art.
For solving the problem, the invention provides a kind of piezoelectricity touch control organic light-emitting display floater, described piezoelectricity touch control organic light-emitting display floater comprises:
The first substrate be oppositely arranged and second substrate;
Be arranged at the TFT routing layer of described first substrate towards described second substrate side;
Be arranged at the OLED luminescent layer on described TFT routing layer surface; And
Be arranged at the pixel defining layer on described OLED luminescent layer surface, be arranged at the support component on described pixel defining layer surface, be arranged at the piezoelectricity touch control component on described support component surface.
Optionally, in described piezoelectricity touch control organic light-emitting display floater, the piezoelectric material layer that described piezoelectricity touch control component comprises bottom electrode, top electrode and is arranged between described bottom electrode and top electrode, described piezoelectric material layer covers described bottom electrode completely.
Optionally, in described piezoelectricity touch control organic light-emitting display floater, described bottom electrode and top electrode all in array distribution, and are transparency electrode.
Optionally, in described piezoelectricity touch control organic light-emitting display floater, the array distribution figure of described bottom electrode is identical with the array distribution figure of described top electrode.
Optionally, in described piezoelectricity touch control organic light-emitting display floater, the thickness sum of described pixel defining layer and described support component is between 3 μm to 5 μm.
Accordingly, present invention also offers a kind of piezoelectricity touch-controllable organic luminescent display, described piezoelectricity touch-controllable organic luminescent display comprises piezoelectricity touch control organic light-emitting display floater as above.
Accordingly, present invention also offers a kind of manufacture method of piezoelectricity touch control organic light-emitting display floater, the manufacture method of described piezoelectricity touch control organic light-emitting display floater comprises:
First substrate is provided;
The surface of described first substrate is formed TFT routing layer;
The surface of described TFT routing layer forms OLED luminescent layer;
The surface of described OLED luminescent layer forms pixel defining layer and support component successively;
The surface of described support component is formed piezoelectricity touch control component;
Second substrate is placed on the surface of described piezoelectricity touch control component, and by described second substrate and described first substrate bonded to each other.
Optionally, in the manufacture method of described piezoelectricity touch control organic light-emitting display floater, on the surface of described support component, the process of piezoelectricity touch control component comprises:
Described support component is formed the first conductive layer, and graphically described first conductive layer to form bottom electrode;
The surface of described bottom electrode forms piezoelectric material layer, and described piezoelectric material layer covers described bottom electrode completely; And
Described piezoelectric material layer is formed the second conductive layer, and graphically described second conductive layer to form top electrode.
Optionally, in the manufacture method of described piezoelectricity touch control organic light-emitting display floater, it is characterized in that, described bottom electrode and top electrode share same mask plate.
Optionally, in the manufacture method of described piezoelectricity touch control organic light-emitting display floater, described first conductive layer and the second conductive layer all adopt transparent conductive material.
Optionally, in the manufacture method of described piezoelectricity touch control organic light-emitting display floater, the material that described piezoelectric material layer adopts is lead lanthanum zirconate titanate transparent ceramic or Nano Silver.
Optionally, in the manufacture method of described piezoelectricity touch control organic light-emitting display floater, the material that described pixel defining layer and described support component adopt is organic gel.
In sum, in piezoelectricity touch control organic light-emitting display floater provided by the invention and manufacture method and organic light emitting display thereof, by piezoelectric type touch screen and oled panel are integrated, not only greatly reduce weight and the thickness of display itself, save cost of manufacture, and owing to have employed piezoelectric type touch control manner, make display can support the touch-control of arbitrary objects.
Accompanying drawing explanation
Fig. 1 is the structural representation of the piezoelectricity touch control organic light-emitting display floater of the embodiment of the present invention;
Fig. 2 is the flow chart of the manufacture method of the piezoelectricity touch control organic light-emitting display floater of the embodiment of the present invention.
Embodiment
Propose a kind of piezoelectricity touch control organic light-emitting display floater and manufacture method and organic light emitting display thereof below in conjunction with the drawings and specific embodiments to the present invention to be described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Please refer to Fig. 1, it is the structural representation of the piezoelectricity touch control organic light-emitting display floater of the embodiment of the present invention.As shown in Figure 1, described piezoelectricity touch control organic light-emitting display floater 100 comprises: the first substrate 11 be oppositely arranged and second substrate 12; Be arranged at the TFT routing layer 13 of described first substrate 11 towards described second substrate 12 side; Be arranged at the OLED luminescent layer 14 on described TFT routing layer 13 surface; Be arranged at the pixel defining layer 15 on described OLED luminescent layer 14 surface, be arranged at the support component 16 on described pixel defining layer 15 surface, be arranged at the piezoelectricity touch control component 20 on described support component 16 surface.
Concrete, the piezoelectric material layer 23 that described piezoelectricity touch control component 20 comprises bottom electrode 21, top electrode 22 and is arranged between described bottom electrode 21 and top electrode 22.Described bottom electrode 21 and top electrode 22 realize being electrically connected by described piezoelectric material layer 23, and described piezoelectric material layer 23 produces voltage when being under pressure effect at thickness direction, and the charge signal of this voltage to described bottom electrode 21 and top electrode 22 has an impact.
Patterned first organic glue-line and patterned second organic glue-line is provided with between described piezoelectricity touch control component 20 and described OLED luminescent layer 14, wherein, described patterned first organic glue-line is near described OLED luminescent layer 14, and described patterned second organic glue-line is between described patterned first organic glue-line and described piezoelectricity touch control component 20.
Described OLED luminescent layer 14 comprises multiple organic electroluminescent LED (not shown).Described patterned first organic glue-line is as pixel defining layer (Pixel Define Layer, be called for short PDL) 15, be arranged between adjacent organic electroluminescent LED, described patterned second organic glue-line as support component (SPC) 16, for supporting the second substrate 12 be oppositely arranged with described first substrate 11.Described support component 16 is arranged at described pixel defining layer 15 towards described second substrate 12 side.
The material of described pixel defining layer 15 is identical with described support component 16, is organic gel (Pillar).The thickness sum of described pixel defining layer 15 and described support component 16 is between 3 μm to 5 μm, preferential, and described pixel defining layer 15 is 3.5 μm, 4 μm or 4,5 μm with the thickness sum of described support component 16.
Described TFT routing layer 13 comprises thin film transistor (TFT) array, provide the data wire of data-signal and provide the gate line of sweep signal, and described data wire and gate line are connected with described thin film transistor (TFT) array (not shown) respectively.Owing to being not only provided with OLED luminescent layer 14 between described TFT routing layer 13 and described piezoelectricity touch control component 20, but also be provided with the double-deck organic gel of general thickness about 4 μm, therefore can effectively avoid the data wire of described piezoelectricity touch control component 20 and described TFT routing layer 13 and gate line mutually to disturb.
In the present embodiment, described piezoelectricity touch control component 20 is arranged between described second substrate 12 and described support component 16, and make described piezoelectricity touch control component 20 and described OLED luminescent layer 14 mutually insulated by double-deck organic gel, and increase the distance of described piezoelectricity touch control component 20 and described TFT routing layer 13, thus avoid signal disturbing.
Piezoelectric type touch screen and oled panel are combined into and are integrated by described piezoelectricity touch control organic light-emitting display floater 100, touch-screen and oled panel need not be made rear assembling respectively, therefore greatly reduce weight and the thickness of display itself, and save cost of manufacture.
Present invention also offers a kind of piezoelectricity touch-controllable organic luminescent display, described piezoelectricity touch-controllable organic luminescent display comprises piezoelectricity touch control organic light-emitting display floater 100 as above.
Accordingly, the present embodiment additionally provides a kind of manufacture method of piezoelectricity touch control organic light-emitting display floater.Incorporated by reference to reference to figure 1 and Fig. 2, the manufacture method of described piezoelectricity touch control organic light-emitting display floater comprises the following steps:
S10: first substrate 11 is provided;
S11: form TFT routing layer 13 on the surface of described first substrate 11;
S12: form OLED luminescent layer 14 on the surface of described TFT routing layer 13;
S13: form pixel defining layer 15 and support component 16 successively on the surface of described OLED luminescent layer 14;
S14: form piezoelectricity touch control component 20 on the surface of described support component 16;
S15: place second substrate 12 on the surface of described piezoelectricity touch control component 20.
Concrete, first, provide first substrate 11, described first substrate 11 is transparent glass substrate.
Then, the surface of described first substrate 11 forms TFT routing layer 13, described TFT routing layer 13 comprises thin film transistor (TFT) array and the data wire that is connected with described thin film transistor (TFT) array and gate line.
Then, the surface of described TFT routing layer 13 forms OLED luminescent layer 14, described OLED luminescent layer 14 comprises multiple organic electroluminescent LED (OLED).
Said process can adopt existing technique to complete, and the present invention does not elaborate.
After this, on the surface of described OLED luminescent layer 14 formed first organic glue-line, and graphically described first organic glue-line to form pixel defining layer 15.
Afterwards, on described pixel defining layer 15 formed second organic glue-line, and graphically described second organic glue-line to form support component 16.
Formed after support component 16, described support component 16 form the first conductive layer, and adopt mask plate graphically described first conductive layer to form bottom electrode 21.The array distribution of described bottom electrode 21 in m1 × n1, wherein, m1 is the columns of bottom electrode 21, and n1 is the line number of bottom electrode 21, m1 >=2, n1 >=2.
After forming bottom electrode 21, the surface of described bottom electrode 21 forms piezoelectric material layer 23.Described piezoelectric material layer 23 covers described bottom electrode 21 completely, thus makes described piezoelectric material layer 23 that described bottom electrode 21 can be avoided to occur short circuit with the top electrode 22 of follow-up formation.The material of described piezoelectric material layer 23 can adopt lead lanthanum zirconate titanate (PLZT) transparent ceramic or Nano Silver (Nano Silver) material of the piezoelectric effect with high optical transmittance and excellence.
Formed after piezoelectric material layer 23, described piezoelectric material layer 23 form the second conductive layer, and graphically described second conductive layer to form top electrode 22.The array distribution of described top electrode 22 in m2 × n2, wherein, m2 is the columns of top electrode 22, and n2 is the line number of top electrode 22, m2 >=2, n2 >=2.
In the present embodiment, described first conductive layer and the second conductive layer are transparency conducting layer, such as indium tin metal oxide (Indium Tin Oxides is called for short ITO).Namely described bottom electrode 21 is transparency electrode with described top electrode 22.
In the present embodiment, described bottom electrode 21 shares same mask plate with described top electrode 22.Described in the mask plate adopted due to graphical described first conductive layer and eye diagram, the mask plate that adopts of the second conductive layer is same mask plate, and therefore the array distribution figure of described bottom electrode 21 is identical with the array distribution figure of described top electrode 22.
The live width of described bottom electrode 21 and top electrode 22 and density can be formulated according to the sensitivity level touched.Sensitivity requirement is higher, and the more small and dense degree of live width is larger.Sensitivity requirement is lower, and live width is larger and density is less.
So far, the surface of described support component 16 defines piezoelectricity touch control component 20, the piezoelectric material layer 23 that described piezoelectricity touch control component 20 comprises bottom electrode 21, top electrode 22 and is arranged between described bottom electrode 21 and top electrode 22.
Finally, second substrate 12 is placed on the surface of described piezoelectricity touch control component 20, described second substrate 12 and described first substrate 11 formation bonded to each other described piezoelectricity touch control organic light-emitting display floater 100.
So far, described piezoelectricity touch control organic light-emitting display floater 100 is defined.Described piezoelectricity touch control organic light-emitting display floater 100 adds piezoelectricity touch control component 20 on the basis of traditional organic electroluminescence display panel (oled panel), described piezoelectricity touch control component 20 is arranged between described first substrate 11 and described second substrate 12, makes described piezoelectricity touch control component 20 share first substrate 11 and second substrate 12 with organic light emitting display.
When described second substrate 12 applies active force, described piezoelectric material layer 23 is subject to producing voltage because of pressure, and then affects the charge signal of described bottom electrode 21 and top electrode 22.By detecting the position and size that described charge signal produces, can accurately perception contact position and amount of force.
To sum up, in piezoelectricity touch control organic light-emitting display floater provided by the invention and manufacture method thereof and organic light emitting display, piezoelectric type touch screen and oled panel are made as one, not only greatly reduce weight and the thickness of display itself, save cost of manufacture, and owing to have employed piezoelectric type touch control manner, make display can support the touch-control of arbitrary objects.
Foregoing description is only the description to present pre-ferred embodiments, any restriction not to the scope of the invention, and any change that the those of ordinary skill in field of the present invention does according to above-mentioned disclosure, modification, all belong to the protection range of claims.
Claims (12)
1. a piezoelectricity touch control organic light-emitting display floater, is characterized in that, comprising:
The first substrate be oppositely arranged and second substrate;
Be arranged at the TFT routing layer of described first substrate towards described second substrate side;
Be arranged at the OLED luminescent layer on described TFT routing layer surface; And
Be arranged at the pixel defining layer on described OLED luminescent layer surface, be arranged at the support component on described pixel defining layer surface, be arranged at the piezoelectricity touch control component on described support component surface.
2. piezoelectricity touch control organic light-emitting display floater as claimed in claim 1, it is characterized in that, the piezoelectric material layer that described piezoelectricity touch control component comprises bottom electrode, top electrode and is arranged between described bottom electrode and top electrode, described piezoelectric material layer covers described bottom electrode completely.
3. piezoelectricity touch control organic light-emitting display floater as claimed in claim 2, it is characterized in that, described bottom electrode and top electrode all in array distribution, and are transparency electrode.
4. piezoelectricity touch control organic light-emitting display floater as claimed in claim 3, it is characterized in that, the array distribution figure of described bottom electrode is identical with the array distribution figure of described top electrode.
5. piezoelectricity touch control organic light-emitting display floater as claimed in claim 1, it is characterized in that, the thickness sum of described pixel defining layer and described support component is between 3 μm to 5 μm.
6. an organic light emitting display, is characterized in that, comprises the organic electroluminescence display panel according to any one of claim 1 to 5.
7. a manufacture method for piezoelectricity touch control organic light-emitting display floater, is characterized in that, comprising:
First substrate is provided;
The surface of described first substrate is formed TFT routing layer;
The surface of described TFT routing layer forms OLED luminescent layer;
The surface of described OLED luminescent layer forms pixel defining layer and support component successively;
The surface of described support component is formed piezoelectricity touch control component;
Second substrate is placed on the surface of described piezoelectricity touch control component, and by described second substrate and described first substrate bonded to each other.
8. the manufacture method of piezoelectricity touch control organic light-emitting display floater as claimed in claim 7, it is characterized in that, on the surface of described support component, the process of piezoelectricity touch control component comprises:
Described support component is formed the first conductive layer, and graphically described first conductive layer to form bottom electrode;
The surface of described bottom electrode forms piezoelectric material layer, and described piezoelectric material layer covers described bottom electrode completely; And
Described piezoelectric material layer is formed the second conductive layer, and graphically described second conductive layer to form top electrode.
9. the manufacture method of piezoelectricity touch control organic light-emitting display floater as claimed in claim 8, it is characterized in that, described bottom electrode and top electrode share same mask plate.
10. the manufacture method of piezoelectricity touch control organic light-emitting display floater as claimed in claim 8, it is characterized in that, described first conductive layer and the second conductive layer all adopt transparent conductive material.
11. piezoelectricity touch control organic light-emitting display floaters as claimed in claim 8, is characterized in that, the material that described piezoelectric material layer adopts is lead lanthanum zirconate titanate transparent ceramic or Nano Silver.
12. piezoelectricity touch control organic light-emitting display floaters as claimed in claim 7, is characterized in that, the material that described pixel defining layer and described support component adopt is organic gel.
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| CN109425450B (en) * | 2017-08-23 | 2021-04-23 | 北京纳米能源与***研究所 | Sensor and electronic, bionic skin and bionic communication equipment applying same |
| CN108319394A (en) * | 2018-02-06 | 2018-07-24 | 京东方科技集团股份有限公司 | Touch panel and its driving method, touch device |
| CN108493218A (en) * | 2018-03-30 | 2018-09-04 | 京东方科技集团股份有限公司 | Pressure sensitivity touch-control display panel and preparation method thereof, display device |
| CN108493218B (en) * | 2018-03-30 | 2021-04-06 | 京东方科技集团股份有限公司 | Pressure-sensitive touch display panel, preparation method thereof and display device |
| CN109994451A (en) * | 2018-12-18 | 2019-07-09 | 武汉华星光电半导体显示技术有限公司 | Oled device with and forming method thereof |
| CN110277429A (en) * | 2019-06-20 | 2019-09-24 | 上海天马有机发光显示技术有限公司 | A kind of flexible display panels and flexible display apparatus |
| CN110197844B (en) * | 2019-06-20 | 2021-01-12 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof, display panel and display device |
| CN110197844A (en) * | 2019-06-20 | 2019-09-03 | 京东方科技集团股份有限公司 | Display base plate and preparation method thereof, display panel and display device |
| US11910661B2 (en) | 2019-06-20 | 2024-02-20 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display substrate for double-sided display and manufacturing method thereof, display panel and display device |
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Application publication date: 20150311 Assignee: Yungu (Gu'an) Technology Co., Ltd.|Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd Assignor: Kunshan Guo Xian Photoelectric Co., Ltd. Contract record no.: X2019990000157 Denomination of invention: Piezoelectric touch organic light emitting display panel, manufacturing method and organic light emitting display Granted publication date: 20181016 License type: Common License Record date: 20191031 |
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