CN104991683B - A kind of OLED touch-control display panel and its control method, display device - Google Patents
A kind of OLED touch-control display panel and its control method, display device Download PDFInfo
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- CN104991683B CN104991683B CN201510435674.9A CN201510435674A CN104991683B CN 104991683 B CN104991683 B CN 104991683B CN 201510435674 A CN201510435674 A CN 201510435674A CN 104991683 B CN104991683 B CN 104991683B
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Abstract
The embodiment of the present invention provides a kind of OLED touch-control display panel and its control method, display device, is related to touch-control display field, is able to solve the problem that existing OLED display light transmission rate is lower, thickness is thicker.OLED touch-control display panel includes anode, cathode and the functional layer between anode and cathode, further includes the touch-control sensing electrode with the different layer setting of cathode.Wherein in the touch-control stage, touch-driven electrode is made in cathode multiplexing.It is shown for touch-control.
Description
Technical field
The present invention relates to touch-control display field more particularly to a kind of OLED touch-control display panel and its control methods, display
Device.
Background technique
OLED rapidly improves with display technology, and the semiconductor component technology as display device core also obtains therewith
Tremendous progress.For existing display device, Organic Light Emitting Diode (Organic Light Emitting
Diode, OLED) it is used as a kind of current mode luminescent device, because of its self-luminous, quick response, wide viewing angle and can make
On flexible substrates the features such as and be applied in high-performance display field more and more.
With the development of portable electronic display device, touch display unit provides a kind of new man-machine interaction interface,
It is more direct in use, more humane.OLED touch control display apparatus is generallyd use OLED display screen and touch screen point at present
It comes and does, then again combine the two.The OLED touch control display apparatus usually may include oled substrate, OLED cover board,
Touch screen base plate and touch screen cover board.However this technology there are light transmission rates it is lower, display device is thicker the disadvantages of.
Summary of the invention
The embodiment of the present invention provides a kind of OLED touch-control display panel and its control method, display device, is able to solve
The problem that existing OLED display light transmission rate is lower, thickness is thicker.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The one side of the embodiment of the present invention, provides a kind of OLED touch-control display panel, including anode, cathode and is located at institute
The functional layer between anode and the cathode is stated, further includes the touch-control sensing electrode with the different layer setting of the cathode；Wherein touching
Touch-driven electrode is made in control stage, the cathode multiplexing.
Preferably, the cathode is the strip shaped electric poles of multiple first directions setting, and the touch-control sensing electrode is multiple the
The strip shaped electric poles of two directions setting, the first direction and second direction intersection.
Preferably, the cathode is multiple block type electrodes arranged in a matrix；The touch-control sensing electrode is multiple
The strip shaped electric poles of second direction setting, and each strip shaped electric poles are located between block type electrode described in adjacent rows；Along first
The block type electrode that direction is located at same row is connected by the first scan line of same.
The cathode is multiple block type electrodes arranged in a matrix；The touch-control sensing electrode is multiple second directions
The strip shaped electric poles of setting, and each strip shaped electric poles are located between block type electrode described in adjacent rows；It is located at along first direction same
The block type electrode of column connects the first different scan lines.
It preferably, further include being set to pixel control circuit of the anode far from the cathode side, the pixel control
Circuit processed includes display module, touch-control module and the modulation module being connected with the display module and the touch-control module,
The touch scanning signals of data-signal and touch-control module output that the modulation module is used to export the display module
It is overlapped；The cathode is connected with the display module and the touch-control module respectively by first scan line；Institute
It states touch-control sensing electrode and is connected by the second scan line with the touch-control module；The anode by third scan line respectively with
The display module is connected with the modulation module.
Preferably, the lead direction of the second scan line described in adjacent rows is opposite.
Preferably, the functional layer includes being sequentially located at the anode close to hole injection layer, the sky of the cathode side
Cave transport layer, organic luminous layer, electron transfer layer and electron injecting layer.
The another aspect of the embodiment of the present invention, providing a kind of display device includes any one OLED touch-control as described above
Display panel.
The another aspect of the embodiment of the present invention provides one kind and shows for controlling any one OLED touch-control as described above
The method of panel, comprising:
In the display stage, public voltage signal is inputted to cathode, to anode input data signal；In the touch-control stage, to institute
Cathode input touch scanning signals are stated, to the anode input modulating signal；Wherein, the modulated signal is the data-signal
With the superposed signal of the touch scanning signals.
Preferably, when the OLED touch-control display panel includes pixel control circuit, the pixel control circuit includes aobvious
When showing module, touch-control module and modulation module, which comprises in the display stage, the display module is to the cathode
The public voltage signal is inputted, and inputs the data-signal to the anode；In the touch-control stage, the touch-control module is to institute
It states cathode and inputs the touch scanning signals, the modulation module inputs the modulated signal to the anode.
The embodiment of the present invention provides a kind of OLED touch-control display panel and its control method, display device.The OLED touching
Controlling display panel includes anode, cathode and the functional layer between anode and cathode, further includes being arranged with the different layer of cathode
Touch-control sensing electrode.Wherein in the touch-control stage, touch-driven electrode is made in cathode multiplexing.It so, can be by the OLED touch-control
The time that each frame of display panel is shown is divided into display stage (Display) and touch-control stage (Touch).Display the stage to
Cathode loads public voltage signal, so that OLED touch-control display panel is shown.It is swept in the touch-control stage to cathode load touch-control
Signal is retouched, touch-driven electrode is made into cathode multiplexing, position of touch is acquired with realizing, achievees the purpose that touch-control.
Due to the OLED touch-control display panel touch-control show during, will cathode multiplexing make touch-driven electrode, so
Without touch screen plug-in in OLED display panel.Therefore for external hanging type touching display screen, structure is simple, thickness
Thin, light transmittance is high.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of OLED touch-control display panel provided in an embodiment of the present invention；
Fig. 2 be it is provided in an embodiment of the present invention it is a kind of for controlling the signal of OLED touch-control display panel shown in FIG. 1 when
Sequence figure；
Fig. 3 is a kind of touch-control sensing electrode for OLED touch-control display panel that Fig. 1 is provided and the structure of touch-driven electrode
Schematic diagram；
Fig. 4 is a kind of concrete structure schematic diagram for OLED touch-control display panel that Fig. 1 is provided；
Fig. 5 is the touch-control sensing electrode for another OLED touch-control display panel that Fig. 1 is provided and the knot of touch-driven electrode
Structure schematic diagram；
Fig. 6 is the touch-control sensing electrode for another OLED touch-control display panel that Fig. 1 is provided and the knot of touch-driven electrode
Structure schematic diagram；
Fig. 7 is the structural schematic diagram of the pixel control circuit in Fig. 4；
Fig. 8 is the control method flow chart of Fig. 1 or OLED touch-control display panel shown in Fig. 4.
Detailed description of the invention:
01- pixel unit；10- anode；20- cathode；30- functional layer；301- hole injection layer；302- hole transmission layer；
303- organic luminous layer；304- electron transfer layer；305- electron injecting layer；40- protective layer；41- array substrate；50- pixel control
Circuit processed；501- display module；502- touch-control module；503- modulation module；RX- touch-control sensing electrode；TX- touch-control driving electricity
Pole；The first scan line of S1-；The first different scan lines that S11-S14- is connected from the touch-driven electrode of same row respectively；
The second scan line of S2-；S3- third scan line.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of OLED touch-control display panel, as shown in Figure 1, include anode 10, cathode 20 and
Functional layer 30 between anode 10 and cathode 20 further includes the touch-control sensing electrode RX with the setting of the different layer of cathode 20.Wherein
In the touch-control stage, cathode 20, which can be multiplexed, makees touch-driven electrode TX.
It should be noted that being typically provided with insulation between the cathode 20 and touch-control sensing electrode RX of the setting of first, different layer
Layer, the signal to avoid cathode 20 and touch-control sensing electrode RX interfere with each other.
The second, the multiplexing of cathode 20 is made touch-driven electrode TX and is referred in the touch-control stage, as shown in Fig. 2, can will be each
The time that frame is shown is divided into display stage (Display) and touch-control stage (Touch).Common electrical is loaded to cathode in the display stage
Signal VCOM is pressed, so that OLED touch-control display panel is shown.At touch-control stage (Touch), touch-control is loaded to cathode 20 and is swept
Signal is retouched, touch-driven electrode TX is made into the multiplexing of cathode 20, position of touch is acquired to realize, reaches the mesh of touch-control
's.
Third is exposed in air in order to avoid touch-control sensing electrode RX, can be arranged on the surface of touch-control sensing electrode RX
Protective layer 40, the protective layer 40 can be the substrate that glass substrate or transparent resin material are constituted.In addition, in order to improve touching
The sensitivity of control can select the higher material of dielectric constant to constitute above-mentioned protective layer 40.
The embodiment of the present invention provides a kind of OLED touch-control display panel, including anode, cathode and is located at anode and cathode
Between functional layer, further include the touch-control sensing electrode with cathode different layer setting.Wherein in the touch-control stage, touch-control is made in cathode multiplexing
Driving electrodes.So, the time that each frame of the OLED touch-control display panel is shown can be divided into the display stage
(Display) and the touch-control stage (Touch).Public voltage signal is loaded to cathode in the display stage, so that OLED touch-control is shown
Panel is shown.Touch scanning signals are loaded to cathode in the touch-control stage, touch-driven electrode is made into cathode multiplexing, with
Realization is acquired position of touch, achievees the purpose that touch-control.The mistake shown due to the OLED touch-control display panel in touch-control
Cheng Zhong, will cathode multiplexing make touch-driven electrode, so without in OLED display panel plug-in touch screen.Therefore opposite
For external hanging type touching display screen, structure is simple, thickness is thin, and light transmittance is high.
Detailed illustrate is carried out below by way of specific structure of the specific embodiment to above-mentioned OLED touch-control display panel
It is bright.
Embodiment one
As shown in figure 3, above-mentioned cathode 20 can be the strip shaped electric poles of multiple first direction Y setting, touch-control sensing electrode RX
It can be the strip shaped electric poles of multiple second direction X setting.So, touch-driven electrode is made in touch-control sensing electrode RX and multiplexing
Mutual capacitance is formed between the cathode 20 of TX；At touch-control stage (Touch), touch drive signal is loaded to touch-driven electrode TX
When, the induced voltage signal that detection touch-control sensing electrode RX is coupled out by mutual capacitance has human contact's touching in the process
When control screen, human body electric field will be acted in mutual capacitance, and the capacitance of mutual capacitance is made to change, to change touch-control sensing electricity
The induced voltage signal that pole RX is coupled out by mutual capacitance, and then according to the variation of the induced voltage signal, determine contact position.
It should be noted that first, above-mentioned first direction Y and second party X are two cross one another directions, the present invention this
It is secondary with no restrictions, as long as above-mentioned two direction can illustrate that the cathode 20 of strip and the touch-control sensing electrode RX of strip are arranged in a crossed manner
?., but it is preferable that first direction Y and second direction X can be vertically arranged.For example, one in array substrate 41 as shown in Figure 3
As be provided with transverse and longitudinal intersection grid line Gate and data line Data.So working as the extending direction of first direction Y and data line Data
When parallel, above-mentioned second direction X can refer to the direction parallel with the extending direction of grid line Gate.Alternatively, working as first direction Y
When parallel with the extending direction of grid line Gate, above-mentioned second direction X can refer to parallel with the extending direction of data line Data
Direction.
The second, as shown in Figure 1, anode 10 is bulk, the grid line Gate and data line Data such as Fig. 3 institute that above-mentioned transverse and longitudinal is intersected
Show, multiple pixel units arranged in a matrix 01 can be defined, be provided in each pixel unit 01 one it is block-like
Anode 10.Since the size of pixel unit 01 is smaller with respect to for finger, during touch-control, finger may arrive touch-control simultaneously
Multiple pixel units 01, so the shape regardless of cathode 20 and touch-control sensing electrode RX, can cover multiple pixels
Unit 01.
" multiple " in multiple strip shaped electric poles in third, the present invention refer generally at least two.
In addition, as shown in figure 4, functional layer 30 may include being sequentially located at anode 10 close to the hole of 20 side of cathode
Implanted layer 301, hole transmission layer 302, organic luminous layer 303, electron transfer layer 304 and electron injecting layer 305.
However in the present embodiment, due to transverse and longitudinal intersect strip touch-control sensing electrode RX and strip cathode 20 (or touch-control drive
Moving electrode TX) between have overlapping part.So mutual capacitance can be generated between touch-control sensing electrode RX and cathode 20, thus
Touching signals are interfered.In order to avoid the above problem, the present invention provides following embodiment.
Embodiment two
In the present embodiment, the specific structure of functional layer 30 is the same as example 1, the shape of touch-control sensing electrode RX also shape
Together, details are not described herein again.The difference is that the shape of cathode 20 is different.
Specifically, as shown in figure 5, cathode 20 is multiple block type electrodes arranged in a matrix.
Touch-control sensing electrode RX is the strip shaped electric poles of multiple second direction X setting, and each strip shaped electric poles are located at adjacent two
Between row block type electrode.
Pass through above-mentioned set-up mode, when touch-driven electrode TX is made in the multiplexing of cathode 20, touch-control sensing electrode RX and bulk
Touch-driven electrode TX between the part that does not overlap, so as to avoid what is generated between touch-control sensing electrode RX and cathode 20
Mutual capacitance is interfered caused by touching signals.
Furthermore, it is possible to be connected along the block type electrode that first direction Y is located at same row by the first scan line of same S1,
To which touch scanning signals can be inputted to touch-driven electrode TX by column in the touch-control stage.In order to enable the bulk of same row
Electrode can be connected with the first scan line of same S1, can be corresponding in the insulating layer for being located at the surface touch-driven electrode TX
The position production via hole of each block-like touch-driven electrode TX (is located at black on block-like touch-driven electrode TX in figure
Point), then the block type electrode of same row is electrically connected by plain conductor.
It, can be directly in the edge of touch-control sensing electrode RX production the since touch-control sensing electrode RX is strip shaped electric poles
Two scan line S2 are used for touch-control sensing electrode RX input control signal.However, due to each block-like touch-driven electrode TX
Corresponding position is provided with via hole, so, is provided with the position of the touch-driven electrode TX of via hole and was not provided with
The display effect of the position of the touch-control sensing electrode RX in hole can difference.Therefore, in order to enable the display of entire display panel
Uniform in effect can be arranged multiple uniform via holes in the touch-control sensing corresponding position electrode RX and (be located at the touch-control of strip in figure
Stain on induction electrode RX) so that setting is in touch control electrode (including touch-control sensing electrode RX and touch-control on entire display panel
Driving electrodes TX) on all via holes be evenly distributed.
Embodiment three
In the present embodiment, the shape of the structure of functional layer 30, touch-control sensing electrode RX and cathode 20 is identical as embodiment two,
Details are not described herein again.The difference is that the connection type of cathode 20 is different.
Specifically, cathode 20 is multiple block type electrodes arranged in a matrix.
Touch-control sensing electrode RX is the strip shaped electric poles of multiple second direction X setting, and each strip shaped electric poles are located at adjacent two
Between row block type electrode；
The block type electrode for being located at same row along first direction Y connects different the first scan lines (S11-S14).
The present embodiment is for embodiment two, since each block-like touch-driven electrode TX is independent by one
Scan line is to its input control signal, therefore the detection of position of touch is more accurate.But wiring space is larger, structure is more multiple
It is miscellaneous.
It, should for any one embodiment of above-described embodiment one to embodiment three in order to realize that touch-control is shown
OLED touch-control display panel can also include being set to pixel control circuit of the anode 10 far from 20 side of cathode as shown in Figure 4
50。
The pixel control circuit 50, may include as shown in Figure 7 display module 501, touch-control module 502 and with display
The modulation module 503 that module 501 is connected with touch-control module 502, data-signal Data for exporting display module 501 and
The touch scanning signals TX that touch-control module 502 exports is overlapped.
Cathode 20 is connected with display module 501 and touch-control module 502 respectively by the first scan line S1.
Touch-control sensing electrode TX is connected by the second scan line S2 with touch-control module 502.
Anode 20 is connected with display module 501 and modulation module 502 respectively by third scan line S3.
So, in display stage (Display), display module 501 is inputted by the first scan line S1 to cathode 20
Public voltage signal VCOM, and pass through third scan line S1 to 10 input data signal Data of anode.In the touch-control stage
(Touch), touch-control module 502 inputs touch scanning signals TX to cathode 20 by the first scan line S1, and modulation module 503 passes through
Superposed signal (Data&TX) from third scan line S3 to anode 10 input data line signal Data and touch scanning signals TX, with
So that remained unchanged in display stage (Display) and touch-control stage (Touch), the pressure difference between anode 10 and cathode 20, from
And the electric current for passing through the OLED of each pixel unit is constant.
In addition, enabling the frame of display device left and right symmetrical in order to during making display device.It is preferred that
, the lead direction of the second scan line of adjacent rows S2 can be opposite.
The embodiment of the present invention provides a kind of display device, including any one of the above OLED touch-control display panel, have with
The identical structure of previous embodiment and beneficial effect.Since previous embodiment to the structure of OLED touch-control display panel and has
Beneficial effect is described in detail, and details are not described herein again.
It should be noted that any such as OLED touch-control display panel TV, Digital Frame, mobile phone or the tablet computer
Product or component having a display function.
The embodiment of the present invention provides a kind of method for controlling any one of the above OLED touch-control display panel, such as Fig. 8
It is shown, may include:
S101, number is inputted to anode 10 to the input public voltage signal Vcom of cathode 20 in display stage (Display)
It is believed that number Data.
S102, modulation is inputted to anode 10 and is believed to the input touch scanning signals TX of cathode 20 at touch-control stage (Touch)
Number.So that the pressure difference between anode 10 and cathode 20 is kept in display stage (Display) and touch-control stage (Touch)
It is constant, so that the electric current for flowing through the OLED of each pixel unit is constant.
Wherein, modulated signal is the superposed signal of data-signal Data and touch scanning signals TX.
The embodiment of the present invention provides a kind of control method of OLED touch-control display panel, comprising: first display the stage, to
Cathode inputs public voltage signal, to anode input data signal.Then, in the touch-control stage, to cathode input touch-control scanning letter
Number, to anode input modulating signal.So, public voltage signal is loaded to cathode in the display stage, so that OLED touch-control
Display panel is shown.Touch scanning signals are loaded to cathode in the touch-control stage, touch-control driving electricity is made into cathode multiplexing
Pole is acquired position of touch with realizing, achievees the purpose that touch-control.Since the OLED touch-control display panel is shown in touch-control
During, will cathode multiplexing make touch-driven electrode, so without in OLED display panel plug-in touch screen.Therefore
For external hanging type touching display screen, structure is simple, thickness is thin, and light transmittance is high.
It on this basis, as shown in Figure 4 include pixel control circuit 50, pixel control when OLED touch-control display panel
When circuit 50 may include display module 501, touch-control module 502 and modulation module 503 as shown in Figure 7, above-mentioned control method
Include:
Firstly, display stage (Display), display module 501 to cathode 20 input public voltage signal Vcom, and to
10 input data signal Data of anode.
Then, at touch-control stage (Touch), touch-control module 502 inputs touch scanning signals TX, modulation module to cathode 20
503 to 10 input modulating signal of anode (Data&TX).
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (5)
1. a kind of OLED touch-control display panel, including anode, cathode and the function between the anode and the cathode
Layer, which is characterized in that further include the touch-control sensing electrode with the different layer setting of the cathode；
Wherein in the touch-control stage, touch-driven electrode is made in the cathode multiplexing；
The cathode is multiple block type electrodes arranged in a matrix；
The touch-control sensing electrode is the strip shaped electric poles of multiple second directions setting, and each strip shaped electric poles are located at adjacent two
Between the row block type electrode；
Insulating layer is provided between the cathode and touch-control sensing electrode of different layer setting；
The block type electrode for being located at same row along first direction is connected by the first scan line of same, alternatively, along first
The block type electrode that direction is located at same row connects the first different scan lines；
It further include being set to pixel control circuit of the anode far from the cathode side, the pixel control circuit includes aobvious
Show module, touch-control module and the modulation module being connected with the display module and the touch-control module, the modulation module
The touch scanning signals of data-signal and touch-control module output for exporting the display module are overlapped；
The cathode is connected with the display module and the touch-control module respectively by first scan line；
The touch-control sensing electrode is connected by the second scan line with the touch-control module；
The anode is connected with the display module and the modulation module respectively by third scan line.
2. OLED touch-control display panel according to claim 1, which is characterized in that the second scan line described in adjacent rows
Lead direction is opposite.
3. OLED touch-control display panel according to claim 1, which is characterized in that the functional layer includes being sequentially located at institute
Anode is stated to infuse close to the hole injection layer of the cathode side, hole transmission layer, organic luminous layer, electron transfer layer and electronics
Enter layer.
4. a kind of display device, which is characterized in that including OLED touch-control display panel as described in any one of claims 1-3.
5. a kind of for controlling the method such as any one of claim 1-3 OLED touch-control display panel characterized by comprising
In the display stage, public voltage signal is inputted to cathode, to anode input data signal；
In the touch-control stage, touch scanning signals are inputted to the cathode, to the anode input modulating signal；
Wherein, the modulated signal is the superposed signal of the data-signal and the touch scanning signals；
When the OLED touch-control display panel includes pixel control circuit, the pixel control circuit includes display module, touch-control
When module and modulation module, which comprises
In the display stage, the display module inputs the public voltage signal to the cathode, and inputs institute to the anode
State data-signal；
In the touch-control stage, the touch-control module inputs the touch scanning signals to the cathode, and the modulation module is to described
Anode inputs the modulated signal.
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| CN103455189A (en) * | 2012-06-01 | 2013-12-18 | 联胜（中国）科技有限公司 | Touch display panel |
| CN104752466A (en) * | 2013-12-30 | 2015-07-01 | 昆山国显光电有限公司 | Organic light emitting display device with touch screen function and manufacturing method thereof |
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| US8629842B2 (en) * | 2008-07-11 | 2014-01-14 | Samsung Display Co., Ltd. | Organic light emitting display device |
| CN103226412A (en) * | 2013-04-10 | 2013-07-31 | 北京京东方光电科技有限公司 | In-cell touch panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103455189A (en) * | 2012-06-01 | 2013-12-18 | 联胜（中国）科技有限公司 | Touch display panel |
| CN102760405A (en) * | 2012-07-11 | 2012-10-31 | 深圳市华星光电技术有限公司 | Display device and imaging displaying and touch sensing method thereof |
| CN104752466A (en) * | 2013-12-30 | 2015-07-01 | 昆山国显光电有限公司 | Organic light emitting display device with touch screen function and manufacturing method thereof |
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