CN103984442A - Embedded active matrix OLED (organic light emitting diode) touch panel - Google Patents
Embedded active matrix OLED (organic light emitting diode) touch panel Download PDFInfo
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- CN103984442A CN103984442A CN201410228741.5A CN201410228741A CN103984442A CN 103984442 A CN103984442 A CN 103984442A CN 201410228741 A CN201410228741 A CN 201410228741A CN 103984442 A CN103984442 A CN 103984442A
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- touch sensing
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- 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
Abstract
The invention relates to an embedded active matrix OLED touch panel and belongs to the technical field of display screens. According to the embedded active matrix OLED touch panel, an OLED board comprises a lower touch sensor layer and an upper touch sensor layer, the lower touch sensor layer comprises a lower touch sensor matrix, the upper touch sensor layer comprises an upper touch sensor array, the distribution direction of the lower touch sensor array is perpendicular to that of the upper touch sensor array, and the lower touch sensor array and the upper touch sensor array compose a mutual-capacitance touch sensing unit for sensing touch signals. Therefore, touch signal sensing elements can be integrated with the OLED board to form an embedded touch panel. The embedded active matrix OLED touch panel is simple structure, thinner in thickness, lower in cost and applicable to more light-weight, thinner and shorter electronic products, and meanwhile, can effectively improve the penetrating degree of the panel, reducing rainbow rings and greatly improve usage experience of users.
Description
Technical field
The present invention relates to display screen technology field, particularly light emitting diode (LED) display screen technical field, specifically refers to a kind of embedded active matrix organic light-emitting diode contact panel.
Background technology
In current electronic product, the display panel with touch controllable function is generally equipped on all kinds of Intelligent handhold devices, and therefore electronic product is added on contact panel too for compact requirement.Through the effort research and development of manufacturer, from externally embedded type contact panel (Out-Cell Touch) to table embedded contact panel (On-Cell Touch), and even the solutions such as single glass touch-control (One Glass Solution, OGS) just occur one after another.
Wherein show the conventional structure of embedded contact panel (On-Cell Touch) as shown in Figure 1.On-cell sticks touch sensing sensor and relevant film (film) material, a slice cover glass (Cover lens) of finally fitting again in the top on upper cover plate glass.Its shortcoming is: panel penetration poor (Low transmittance); Easily produce rainbow line phenomenon (Moire), and panel is thicker, cost is also higher
Single glass touch-control (OGS) panel construction of commonly using in prior art as shown in Figure 2.OGS is attached on panel (Panel cell) for upper cover plate glass and sensor are integrated into single glass state, with this, glass number is reduced to two, thereby can reduce to a certain extent panel integral thickness compared to table embedded contact panel, reduce production cost, but the touch panel structure provided problem that has equally the poor and easy generation rainbow line phenomenon of panel penetration of single glass of the prior art.
Therefore how to provide a kind of and reducing plate thickness, reduce cost, when being applicable to compact electronic product, can improve again panel penetration, reduce the generation of rainbow line phenomenon, and the contact panel that finally improves user's experience becomes the art problem demanding prompt solution.
Summary of the invention
The object of the invention is to have overcome above-mentioned shortcoming of the prior art, provide one can effectively improve panel penetration, reduce the generation of rainbow line phenomenon, simultaneously simple in structure, thickness is thinner, cost is lower, can be applicable to more compact electronic product, and significantly promotes embedded (In-Cell Touch) active matrix organic light-emitting diode contact panel of user's experience.
In order to realize above-mentioned object, embedded active matrix organic light-emitting diode contact panel of the present invention has and comprises:
Substrate, be positioned at the TFT backboard on described substrate and be positioned at OLED plate on described TFT backboard, this OLED plate comprises the oled layer between lower electrode layer, upper electrode layer and described lower electrode layer and described upper electrode layer.This embedded active matrix organic light-emitting diode contact panel also comprises lower touch sensing layer and upper touch sensing layer, described lower touch sensing layer comprises lower touch sensing array, lower touch sensing in described lower touch sensing array is patterned among the lower clearance channel forming between each bottom electrode in described lower electrode layer, described upper touch sensing layer comprises touch sensing array, and the upper touch sensing in described upper touch sensing array is patterned among the upper clearance channel forming between each top electrode in described upper electrode layer; Described lower touch sensing array arrangement direction is vertical with described upper touch sensing array arrangement direction, described lower touch sensing array and described upper touch sensing array composition are in order to the mutual appearance touch sensing unit of touch sensitive signal, and described lower touch sensing array and the equal circuit of described upper touch sensing array are connected in touching signals circuit.
In this embedded active matrix organic light-emitting diode contact panel, described lower electrode layer is OLED plate anode layer, and described upper electrode layer is OLED plate cathode layer.
In this embedded active matrix organic light-emitting diode contact panel, the lower clearance channel forming between each bottom electrode in described lower electrode layer is first direction, and described lower touch sensing array is the sweep signal sensor array of being located at the lower clearance channel of first direction; The upper clearance channel forming between each top electrode in described upper electrode layer is the second direction vertical with described first direction, and described upper touch sensing array is the driving signal transducer array of being located at the upper clearance channel of second direction.
In this embedded active matrix organic light-emitting diode contact panel, the lower clearance channel forming between each bottom electrode in described lower electrode layer is second direction, and described lower touch sensing array is the driving signal transducer array of being located at the lower clearance channel of second direction; The upper clearance channel forming between each top electrode in described upper electrode layer is the first direction vertical with described second direction, and described upper touch sensing array is the sweep signal sensor array of being located at the upper clearance channel of first direction.
In this embedded active matrix organic light-emitting diode contact panel, described touching signals circuit is arranged at described TFT backboard.Adopt the embedded active matrix organic light-emitting diode contact panel of this invention, due to touch sensing layer under the comprising of its OLED plate and upper touch sensing layer, described lower touch sensing layer comprises lower touch sensing array, lower touch sensing in described lower touch sensing array is patterned among the lower clearance channel forming between each bottom electrode in described lower electrode layer, described upper touch sensing layer comprises touch sensing array, upper touch sensing in described upper touch sensing array is patterned among the upper clearance channel forming between each top electrode in described upper electrode layer, described lower touch sensing array arrangement direction is vertical with described upper touch sensing array arrangement direction, and described lower touch sensing array and described upper touch sensing array composition are in order to the mutual appearance touch sensing unit of touch sensitive signal.Thereby the sensing element of touching signals and OLED plate can be integrated, form embedded (In-Cell Touch) contact panel, that embedded active matrix organic light-emitting diode contact panel of the present invention is not only simple in structure, thickness is thinner, cost is lower, is applicable to more compact electronic product, and can effectively improve panel penetration, reduce the generation of rainbow line phenomenon, significantly promote user's experience.
Brief description of the drawings
Fig. 1 is the structural representation of externally embedded type contact panel of the prior art.
Fig. 2 is the structural representation of single glass contact panel of the prior art.
Fig. 3 is the structural representation of embedded active matrix organic light-emitting diode contact panel of the present invention.
Fig. 4 is the detail sections structural representation of embedded active matrix organic light-emitting diode contact panel of the present invention.
Fig. 5 is the embedded active matrix organic light-emitting diode contact panel of the present invention XY axle arrangement mode schematic diagram of upper/lower electrode layer in one embodiment.
Fig. 6 is the embedded active matrix organic light-emitting diode contact panel of the present invention XY axle arrangement mode schematic diagram of upper/lower electrode in another embodiment.
Embodiment
In order more clearly to understand technology contents of the present invention, describe in detail especially exemplified by following examples.
Referring to shown in Fig. 3, is the structural representation of embedded active matrix organic light-emitting diode contact panel of the present invention.
In one embodiment, this embedded active matrix organic light-emitting diode contact panel has substrate, is positioned at the TFT backboard on described substrate and is positioned at OLED plate on described TFT backboard, and this OLED plate comprises the oled layer between lower electrode layer, upper electrode layer and described lower electrode layer and described upper electrode layer.As shown in Figures 3 and 4, this embedded active matrix organic light-emitting diode contact panel also comprises lower touch sensing layer and upper touch sensing layer, described lower touch sensing layer comprises lower touch sensing array, lower touch sensing in described lower touch sensing array is patterned among the lower clearance channel forming between each bottom electrode in described lower electrode layer, described upper touch sensing layer comprises touch sensing array, upper touch sensing in described upper touch sensing array is patterned among the upper clearance channel forming between each top electrode in described upper electrode layer, described lower touch sensing array arrangement direction is vertical with described upper touch sensing array arrangement direction, described lower touch sensing array and described upper touch sensing array composition are in order to the mutual appearance touch sensing unit of touch sensitive signal, and described lower touch sensing array and the equal circuit of described upper touch sensing array are connected in touching signals circuit.Described touching signals circuit is arranged at described TFT backboard.In a preferred embodiment, described lower electrode layer is OLED plate anode layer, and described upper electrode layer is OLED plate cathode layer.
In preferred embodiment, the lower clearance channel forming between each bottom electrode in described lower electrode layer is first direction, and described lower touch sensing array is the sweep signal sensor array of being located at the lower clearance channel of first direction; The upper clearance channel forming between each top electrode in described upper electrode layer is the second direction vertical with described first direction, and described upper touch sensing array is the driving signal transducer array of being located at the upper clearance channel of second direction.
Or the lower clearance channel forming between each bottom electrode in described lower electrode layer is second direction, described lower touch sensing array is the driving signal transducer array of being located at the lower clearance channel of second direction; The upper clearance channel forming between each top electrode in described upper electrode layer is the first direction vertical with described second direction, and described upper touch sensing array is the sweep signal sensor array of being located at the upper clearance channel of first direction.
In an application of the invention, embedded active matrix organic light-emitting diode contact panel of the present invention, its Design Mode is that touch sensor is incorporated into the projecting type capacitor touch-control mechanism in TFT processing procedure.Utilize original TFT processing procedure to produce can to carry out the axial signal scanning of XY, thereby reach the function of touch sensor.Can successfully reduce costs thus, improve penetration and reduce the generation of rainbow line phenomenon.
When concrete manufacture, first the anode of OLED is carried out to patterning, be made into the axial sweep signal of X (or Y); Again the negative electrode of OLED is carried out to patterning and be made into the axial driving signal of Y (or X), thereby form embedded touch sensible.
As illustrated in Figures 5 and 6, the practice of actual design figure is that the vacant Position Design of anode is gone out to sweep signal, and the negative electrode pattern of whole covering is originally dissolved to relevant driving signal, the touch-control scan mechanism that the anode sweep signal of cross arrangement and negative electrode driving signal formation hold (mutual capacitance) formula mutually is mutually as touch sensing element.
Concrete anode and negative electrode are arranged and can be adopted either method as shown in Figure 5 or Figure 6, arrange in the shaft staggered mode of XY according to double-deck pattern.The outside surrounding of electrode has respectively wire that electrode axial XY is electrically connected in the induction channels of control circuit.In the time that reality is used, in the time approaching without any conductive body, each touch-control electrode has a fixing coupling capacitance each other, now the Electric Field Distribution between electrode and electrode is fixed, and control circuit will see through each induction channels every online electrode capacitance value of XY axle is carried out to record.When human finger touch panel, originally the electric field of stationary distribution on each electrode can be because part line of electric force be connected to finger skin and changes, thereby form a new electric capacity at contact point, and then the total capacitance value of change contact point, control end senses the variation of capacitance, with set feeler, realize touch controllable function.
Adopt the embedded active matrix organic light-emitting diode contact panel of this invention, due to touch sensing layer under the comprising of its OLED plate and upper touch sensing layer, described lower touch sensing layer comprises lower touch sensing array, lower touch sensing in described lower touch sensing array is patterned among the lower clearance channel forming between each bottom electrode in described lower electrode layer, described upper touch sensing layer comprises touch sensing array, upper touch sensing in described upper touch sensing array is patterned among the upper clearance channel forming between each top electrode in described upper electrode layer, described lower touch sensing array arrangement direction is vertical with described upper touch sensing array arrangement direction, and described lower touch sensing array and described upper touch sensing array composition are in order to the mutual appearance touch sensing unit of touch sensitive signal.Thereby the sensing element of touching signals and OLED plate can be integrated, form embedded (In-Cell Touch) contact panel, that embedded active matrix organic light-emitting diode contact panel of the present invention is not only simple in structure, thickness is thinner, cost is lower, is applicable to more compact electronic product, and can effectively improve panel penetration, reduce the generation of rainbow line phenomenon, significantly promote user's experience.
In this instructions, the present invention is described with reference to its specific embodiment.But, still can make various amendments and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (5)
1. an embedded active matrix organic light-emitting diode contact panel, comprising:
Substrate;
TFT backboard, is positioned on described substrate;
OLED plate, is positioned on described TFT backboard, comprises the oled layer between lower electrode layer, upper electrode layer and described lower electrode layer and described upper electrode layer;
It is characterized in that,
Also comprise lower touch sensing layer and upper touch sensing layer, described lower touch sensing layer comprises lower touch sensing array, lower touch sensing in described lower touch sensing array is patterned among the lower clearance channel forming between each bottom electrode in described lower electrode layer, described upper touch sensing layer comprises touch sensing array, and the upper touch sensing in described upper touch sensing array is patterned among the upper clearance channel forming between each top electrode in described upper electrode layer; Described lower touch sensing array arrangement direction is vertical with described upper touch sensing array arrangement direction, described lower touch sensing array and described upper touch sensing array composition are in order to the mutual appearance touch sensing unit of touch sensitive signal, and described lower touch sensing array and the equal circuit of described upper touch sensing array are connected in touching signals circuit.
2. embedded active matrix organic light-emitting diode contact panel according to claim 1, is characterized in that, described lower electrode layer is OLED plate anode layer, and described upper electrode layer is OLED plate cathode layer.
3. embedded active matrix organic light-emitting diode contact panel according to claim 2, is characterized in that,
The lower clearance channel forming between each bottom electrode in described lower electrode layer is first direction, and described lower touch sensing array is the sweep signal sensor array of being located at the lower clearance channel of first direction; The upper clearance channel forming between each top electrode in described upper electrode layer is the second direction vertical with described first direction, and described upper touch sensing array is the driving signal transducer array of being located at the upper clearance channel of second direction.
4. embedded active matrix organic light-emitting diode contact panel according to claim 2, is characterized in that,
The lower clearance channel forming between each bottom electrode in described lower electrode layer is second direction, and described lower touch sensing array is the driving signal transducer array of being located at the lower clearance channel of second direction; The upper clearance channel forming between each top electrode in described upper electrode layer is the first direction vertical with described second direction, and described upper touch sensing array is the sweep signal sensor array of being located at the upper clearance channel of first direction.
5. according to the embedded active matrix organic light-emitting diode contact panel described in any one in claim 1 to 4, it is characterized in that, described touching signals circuit is arranged at described TFT backboard.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228741.5A CN103984442B (en) | 2014-05-27 | 2014-05-27 | Embedded active matrix organic light-emitting diode contact panel |
| TW103124368A TWI522867B (en) | 2014-05-27 | 2014-07-16 | In-cell organic light emitting diode touch panel |
| JP2014146228A JP2015225649A (en) | 2014-05-27 | 2014-07-16 | Touch control panel of embedded type active matrix organic light-emitting diode |
| KR1020140096367A KR101617140B1 (en) | 2014-05-27 | 2014-07-29 | In-cell amoled touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228741.5A CN103984442B (en) | 2014-05-27 | 2014-05-27 | Embedded active matrix organic light-emitting diode contact panel |
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| Publication Number | Publication Date |
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| CN103984442A true CN103984442A (en) | 2014-08-13 |
| CN103984442B CN103984442B (en) | 2017-10-31 |
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| CN201410228741.5A Active CN103984442B (en) | 2014-05-27 | 2014-05-27 | Embedded active matrix organic light-emitting diode contact panel |
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| JP (1) | JP2015225649A (en) |
| KR (1) | KR101617140B1 (en) |
| CN (1) | CN103984442B (en) |
| TW (1) | TWI522867B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201545014A (en) | 2015-12-01 |
| JP2015225649A (en) | 2015-12-14 |
| CN103984442B (en) | 2017-10-31 |
| KR101617140B1 (en) | 2016-05-02 |
| TWI522867B (en) | 2016-02-21 |
| KR20150136566A (en) | 2015-12-07 |
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Address after: 201506, No. nine, No. 1568, Jinshan Industrial Zone, Shanghai, Jinshan District Patentee after: Shanghai Hehui optoelectronic Co., Ltd Address before: 201508, building two, building 100, 1, Jinshan Industrial Road, 208, Shanghai, Jinshan District Patentee before: EverDisplay Optronics (Shanghai) Ltd. |