CN111489692B - Organic light emitting diode display device and driving method thereof - Google Patents
Organic light emitting diode display device and driving method thereof Download PDFInfo
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- CN111489692B CN111489692B CN201910074162.2A CN201910074162A CN111489692B CN 111489692 B CN111489692 B CN 111489692B CN 201910074162 A CN201910074162 A CN 201910074162A CN 111489692 B CN111489692 B CN 111489692B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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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
- H10K59/40—OLEDs integrated with touch screens
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- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
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Abstract
The invention discloses an organic light emitting diode display device and a driving method thereof. The display device comprises a display unit, a touch unit, a grid driver, a source driver, a touch driver and a time schedule controller, wherein the time schedule controller is electrically connected with the grid driver, the source driver and the touch driver respectively; the time sequence controller is used for respectively inputting grid driving time sequence signals to the grid driver, controlling the grid driver to output scanning signals to the display unit, inputting source driving time sequence signals to the source driver, controlling the source driver to output source display signals to the display unit and controlling the display unit to enter a light-emitting stage; the light-emitting stage comprises a dark state stage and a bright state stage of the organic light-emitting diode; the time schedule controller is also used for inputting a touch control time schedule signal to the touch control driver in a dark state stage and controlling the touch control driver to output a touch control driving signal to the touch control unit. The organic light emitting diode display device can improve the signal to noise ratio of the touch unit.
Description
Technical Field
The embodiment of the invention relates to the technical field of organic light emitting diode display, in particular to an organic light emitting diode display device and a driving method thereof.
Background
The signal-to-noise ratio of a touch screen is one of the indexes describing the performance of the touch screen, and is specifically defined as the ratio of the power (or voltage) of a signal to the power (or voltage) of noise.
However, the signal-to-noise ratio of the touch screen is interfered by external noise such as the photoelectric effect of the organic light emitting diode, which is more obvious when the distance between the display screen and the touch screen is small, at this time, the noise of the display screen is more easily coupled to the touch screen, a large noise peak is received at or near the intersection of the capacitance sensing, and the touch screen appears as a false touch, which affects the signal-to-noise ratio of the touch screen.
Disclosure of Invention
The invention provides an organic light emitting diode display device and a driving method thereof, which are used for reducing the influence of a photoelectric effect generated by an organic light emitting diode in a lighting stage on the signal-to-noise ratio of a touch unit.
In a first aspect, an embodiment of the present invention provides an organic light emitting diode display device, where the organic light emitting diode display device includes a display unit and a touch unit;
the organic light emitting diode display device also comprises a grid driver, a source driver, a touch driver and a time schedule controller, wherein the grid driver, the source driver and the touch driver are positioned in a non-display area;
the time sequence controller is used for respectively inputting grid driving time sequence signals to the grid driver, controlling the grid driver to output scanning signals to the display unit, inputting source driving time sequence signals to the source driver, controlling the source driver to output source display signals to the display unit and controlling the display unit to enter a light-emitting stage; the light-emitting stage comprises a dark state stage and a bright state stage of the organic light-emitting diode;
and the time schedule controller is also used for inputting a touch time schedule signal to the touch driver in the dark state stage and controlling the touch driver to output a touch driving signal to the touch unit.
Further, the touch driver is further configured to receive a touch sensing signal returned by the touch unit in the dark state stage, and determine a touch position according to the touch sensing signal.
Further, the dark state phase includes an initialization phase of the organic light emitting diode, a phase of writing a source display signal, an anode initialization phase and a phase of waiting for light emission; the bright state phase comprises a lighting phase of the organic light emitting diode.
Furthermore, the touch control unit is positioned on one side of the light emitting side of the display unit;
or at least part of the touch unit and the cathode electrode in the display unit are arranged in the same layer.
Further, the touch unit includes a self-contained touch unit or a mutual-contained touch unit.
Further, the organic light emitting diode display device further includes an encapsulation unit;
the packaging unit is arranged between the display unit and the touch control unit; or the packaging unit is arranged on one side of the touch unit far away from the display unit.
Further, the packaging unit comprises a film packaging unit or a glass packaging unit.
Furthermore, the packaging unit comprises a glass packaging unit, the organic light emitting diode display device further comprises a bonding adhesive layer, and the packaging unit is bonded with the touch control unit through the bonding adhesive layer.
In a second aspect, an embodiment of the present invention further provides a driving method of the organic light emitting diode display device according to the first aspect, where the organic light emitting diode display device includes a display unit and a touch unit, the organic light emitting diode display device further includes a gate driver, a source driver, a touch driver and a timing controller, the gate driver, the source driver and the touch driver are located in a non-display region, and the timing controller is electrically connected to the gate driver, the source driver and the touch driver, respectively;
the driving method includes:
the time sequence controller respectively inputs grid driving time sequence signals to the grid driver, controls the grid driver to output scanning signals to the display unit, inputs source driving time sequence signals to the source driver, controls the source driver to output source display signals to the display unit, and controls the display unit to enter a light-emitting stage; the light-emitting stage comprises a dark state stage and a bright state stage of the organic light-emitting diode;
and the time schedule controller inputs a touch control time schedule signal to the touch control driver in the dark state stage and controls the touch control driver to output a touch control driving signal to the touch control unit.
Further, the driving method further includes:
and the touch driver receives a touch sensing signal returned by the touch unit in the dark state stage and determines a touch position according to the touch sensing signal.
The organic light emitting diode display device provided by the embodiment of the invention comprises a display unit, a touch unit, a grid driver, a source driver, a touch driver and a time schedule controller, wherein the grid driver, the source driver and the touch driver are positioned in a non-display area of the organic light emitting diode display device; the light-emitting stage comprises a dark state stage and a bright state stage of the organic light-emitting diode; the time schedule controller inputs a touch control time sequence signal to the touch control driver in a dark state stage, and controls the touch control driver to output a touch control driving signal to the touch control unit, so that the problem that the signal-to-noise ratio of the touch control unit is influenced by the photoelectric effect of the organic light emitting diode is solved, and the effect of improving the signal-to-noise ratio of the touch control unit is realized.
Drawings
Fig. 1 is a schematic structural diagram of an oled display device according to an embodiment of the present invention;
fig. 2 is a timing diagram of a touch driving signal according to an embodiment of the invention;
fig. 3 is a timing diagram of a touch driving signal and a touch sensing signal according to an embodiment of the invention;
fig. 4 is a flowchart of a driving method of an organic light emitting diode display device according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural diagram of an oled display device according to an embodiment of the present invention, which includes a display unit 10 and a touch unit 20, because the display unit 10 is located below the touch unit 20, in order to clearly show that a gate driver 30 outputs a scan signal to the display unit 10, and a source driver 40 outputs a source display signal to the display unit 10, the display unit 10 and the touch unit 20 are shown in a staggered manner in fig. 1, and the display unit 10 is shown by a dashed box in fig. 1. As shown in fig. 1, the organic light emitting diode display device further includes a gate driver 30, a source driver 40, a touch driver 50 in the non-display region, and a timing controller 60, wherein the timing controller 60 is electrically connected to the gate driver 30, the source driver 40, and the touch driver 50, respectively; the timing controller 60 is configured to input a gate driving timing signal to the gate driver 30, control the gate driver 30 to output a scan signal to the display unit 10, input a source driving timing signal to the source driver 40, control the source driver 40 to output a source display signal to the display unit 10, and control the display unit 10 to enter a light emitting stage; fig. 2 is a timing diagram of touch driving signals according to a first embodiment of the invention, and as shown in fig. 2, the light-emitting phases include dark phases b1 and b2 … and light phases a1 and a2 … of the organic light emitting diode; the timing controller 60 is further configured to input a touch timing signal to the touch driver 50 during the dark state periods b1 and b2 …, and control the touch driver 50 to output a touch driving signal to the touch unit 20.
With continued reference to fig. 2, T1 and T2 … represent the repetition period of the dark state phase and the bright state phase of the oled. The timing controller 60 inputs a gate driving timing signal to the gate driver 30, controls the gate driver 30 to output a scan signal to the display unit 10, inputs a source driving timing signal to the source driver 40, controls the source driver 40 to output a source display signal to the display unit 10, and controls the display unit 10 to enter a light-emitting stage, because the light-emitting stage of the display unit 10 includes a dark stage b1, b2 … and a bright stage a1, a2 … of the organic light emitting diode, the timing controller 60 inputs a touch timing signal to the touch driver 50 in the dark stage b1, b2 …, controls the touch driver 50 to output a touch driving signal to the touch unit 20, the timing controller 60 controls the time when the touch driver 50 outputs the touch driving signal to the touch unit 20 and controls the source driver 40 to output the source display signal to the display unit 10, and controls the time when the display unit 10 enters the light-emitting stage, the time for the touch driver 50 to output the touch driving signal to the touch unit 20 is not overlapped with the bright state stage of the organic light emitting diode.
According to the technical scheme of the embodiment, the organic light emitting diode display device comprises a display unit, a touch unit, a grid driver, a source driver, a touch driver and a time schedule controller, wherein the grid driver, the source driver and the touch driver are positioned in a non-display area of the organic light emitting diode display device; the light-emitting stage comprises a dark state stage and a bright state stage of the organic light-emitting diode; the time schedule controller inputs a touch control time sequence signal to the touch control driver in a dark state stage, controls the touch control driver to output a touch control driving signal to the touch control unit, and enables the time of the touch control driver outputting the touch control driving signal to the touch control unit not to be overlapped with a bright state stage of the organic light emitting diode, so that the problem that the signal-to-noise ratio of the touch control unit is interfered by the photoelectric effect of the organic light emitting diode is solved, and the effect of improving the signal-to-noise ratio of the touch control unit is realized.
Based on the above technical solution, optionally, the touch driver 50 is further configured to receive touch sensing signals returned by the touch units 20 in the dark state phases b1 and b2 …, and determine the touch position according to the touch sensing signals.
Referring to fig. 3, fig. 3 is a timing diagram of touch driving signals and touch sensing signals according to an embodiment of the invention, because the light-emitting stage of the display unit 10 includes the dark-state stages b1 and b2 … and the bright-state stages a1 and a2 … of the organic light-emitting diodes, the timing controller 60 inputs the touch timing signals to the touch driver 50 in the dark-state stages b1 and b2 …, controls the touch driver 50 to output the touch driving signals to the touch unit 20, and the touch driver 50 is also used to receive the touch sensing signals returned by the touch unit 20 in the dark-state stages b1 and b2 …, the technical solution of this embodiment is to prevent the time when the touch driver 50 outputs the touch driving signals to the touch unit 20 and the time when the touch driver 50 receives the touch sensing signals returned by the touch unit 20 from overlapping with the bright-state stage of the organic light-emitting diodes, so as to solve the problem that the signal-to noise ratio of the touch unit is interfered by the photoelectric effect of the organic light-emitting diodes, the effect of improving the signal-to-noise ratio of the touch unit is achieved.
Optionally, in this embodiment, the time when the touch driver 50 receives the touch sensing signal returned by the touch unit 20 is not overlapped with the bright state stage of the organic light emitting diode, so as to solve the problem that the signal-to-noise ratio of the touch unit is interfered by the photoelectric effect of the organic light emitting diode.
On the basis of the technical scheme, optionally, the dark state stage comprises an initialization stage of the organic light emitting diode, a stage of writing a source display signal, an anode initialization stage and a stage of waiting for light emission; the bright state phase includes a lighting phase of the organic light emitting diode.
On the basis of the above technical solution, optionally, the touch unit 20 is located on one side of the light emitting side of the display unit 10; or at least a part of the touch unit 20 is disposed in the same layer as the cathode electrode of the display unit 10.
The touch unit 20 may be disposed separately from the display unit 10, or at least a portion of the touch unit 20 may be disposed in the same layer as the cathode electrode in the display unit 10.
On the basis of the above technical solution, optionally, the touch unit 20 includes a self-capacitance touch unit or a mutual capacitance touch unit.
When the touch unit 20 includes a self-contained touch unit, the self-contained touch unit may be located on the light emitting side of the display unit 10, or may be disposed on the same layer as the cathode electrode in the display unit 10; when the touch unit 20 includes a mutual capacitance type touch unit, the self-capacitance type touch unit may be located on the light emitting side of the display unit 10, or at least a portion of the self-capacitance type touch unit and the cathode electrode in the display unit 10 are disposed in the same layer, that is, the touch sensing electrode of the self-capacitance type touch unit and the cathode electrode in the display unit 10 are disposed in the same layer, or the touch driving electrode of the self-capacitance type touch unit and the cathode electrode in the display unit 10 are disposed in the same layer, or the touch sensing electrode and the touch driving electrode of the self-capacitance type touch unit and the cathode electrode in the display unit 10 are disposed in the same layer, or the bridge of the self-capacitance type touch unit and the cathode electrode in the display unit 10 are disposed in the same layer.
On the basis of the above technical solution, optionally, the organic light emitting diode display device further includes an encapsulation unit (not shown in the figure); the packaging unit is arranged between the display unit 10 and the touch control unit 20; or the package unit is disposed on a side of the touch unit 20 away from the display unit 10.
When the touch unit 20 can be disposed separately from the display unit 10, the packaging unit is disposed between the display unit 10 and the touch unit 20; when at least a portion of the touch unit 20 and the cathode electrode in the display unit 10 are disposed on the same layer, the encapsulation unit is disposed on a side of the touch unit 20 away from the display unit 10.
On the basis of the above technical solution, optionally, the encapsulation unit includes a film encapsulation unit or a glass encapsulation unit.
Among them, the thin film encapsulation unit may include at least one inorganic layer and at least one organic layer, and exemplarily, the thin film encapsulation unit may include two inorganic layers and one organic layer, and since the inorganic layers have a strong barrier capability, for example, to block oxygen and water, when the thin film encapsulation unit includes two inorganic layers and one organic layer, oxygen and water may be further blocked from entering the inside of the organic light emitting diode display device. According to the technical scheme, water and oxygen can be effectively separated through the film packaging unit or the glass packaging unit, and the service life of the organic light-emitting diode display device is further ensured.
On the basis of the above technical solution, optionally, the encapsulation unit includes a glass encapsulation unit, the organic light emitting diode display device further includes a bonding adhesive layer, and the encapsulation unit is bonded to the touch unit through the bonding adhesive layer.
The adhesive layer includes, but is not limited to, the above examples, and any material capable of adhering the package unit to the display unit 10 and the touch unit 20 falls within the protection scope of the present invention, and is not described herein again.
Alternatively, the touch unit 20 may be directly disposed on a side of the package unit away from the display unit 10 through an adhesive layer. The touch unit 20 may also be prepared on a side of the package unit away from the display unit 10 by preparing the package unit on a light emitting side of the display unit 10. Specifically, the touch unit 20 is prepared on a side of the package unit away from the display unit 10 by an array process, that is, a first electrode layer may be prepared on the side of the package unit away from the display unit 10 by, for example, a physical vapor deposition process or a chemical vapor deposition process, where a material of the first electrode layer includes a metal or a metal oxide, and then the first electrode layer is subjected to a yellow light treatment to form a first electrode pattern, and then, the first electrode layer may be etched by, for example, a dry etching process or a wet etching process to obtain the first electrode pattern. After the first electrode pattern is prepared, a dielectric layer is prepared on one side of the first electrode layer away from the packaging unit, a second electrode layer is prepared on one side of the dielectric layer away from the first electrode layer, a protective layer is prepared on one side of the second electrode layer away from the dielectric layer, and each film layer is stacked on one side of the packaging unit away from the display unit 10, so that the touch unit 20 is formed. If the encapsulation unit is a thin film encapsulation unit, that is, the touch unit 20 is prepared on the side of the thin film encapsulation unit far away from the display unit, the organic light emitting diode display device can be bent and folded, and the thickness of the organic light emitting diode display device is reduced.
Example two
Based on the same inventive concept, an embodiment of the present invention further provides a driving method of an organic light emitting diode display device, and fig. 4 is a flowchart of a driving method of an organic light emitting diode display device according to a second embodiment of the present invention. The organic light emitting diode display device comprises a display unit and a touch unit, and further comprises a gate driver, a source driver, a touch driver and a time schedule controller, wherein the gate driver, the source driver and the touch driver are positioned in a non-display area, and the time schedule controller is electrically connected with the gate driver, the source driver and the touch driver respectively.
As shown in fig. 4, the driving method includes:
s110, respectively inputting a grid driving time sequence signal to a grid driver, controlling the grid driver to output a scanning signal to a display unit, inputting a source driving time sequence signal to a source driver, controlling the source driver to output a source display signal to the display unit, and controlling the display unit to enter a light-emitting stage by the time sequence controller; the light emitting phase includes a dark state phase and a bright state phase of the organic light emitting diode.
And S120, the time schedule controller inputs a touch control time schedule signal to the touch control driver in a dark state stage, and controls the touch control driver to output a touch control driving signal to the touch control unit.
In the technical scheme of this embodiment, the organic light emitting diode display device includes a display unit, a touch unit, and a gate driver, a source driver, a touch driver and a timing controller located in a non-display region of the organic light emitting diode display device, where the timing controller is electrically connected to the gate driver, the source driver and the touch driver, respectively, and inputs gate driving timing signals to the gate driver through the timing controller, controls the gate driver to output scan signals to the display unit, inputs source driving timing signals to the source driver, controls the source driver to output source display signals to the display unit, and controls the display unit to enter a light emitting stage; the light-emitting stage comprises a dark state stage and a bright state stage of the organic light-emitting diode; the time schedule controller inputs a touch control time sequence signal to the touch control driver in a dark state stage, controls the touch control driver to output a touch control driving signal to the touch control unit, and enables the time of the touch control driver outputting the touch control driving signal to the touch control unit not to be overlapped with a bright state stage of the organic light emitting diode, so that the problem that the signal-to-noise ratio of the touch control unit is interfered by the photoelectric effect of the organic light emitting diode is solved, and the effect of improving the signal-to-noise ratio of the touch control unit is realized.
On the basis of the above technical solution, optionally, the driving method further includes: the touch driver receives a touch sensing signal returned by the touch unit in a dark state stage, and determines a touch position according to the touch sensing signal.
According to the technical scheme of the embodiment, the time when the touch driver 50 outputs the touch driving signal to the touch unit 20 and the time when the touch driver 50 receives the touch sensing signal returned by the touch unit 20 are not overlapped with the bright state stage of the organic light emitting diode, so that the problem that the signal-to-noise ratio of the touch unit is interfered by the photoelectric effect of the organic light emitting diode is solved, and the effect of improving the signal-to-noise ratio of the touch unit is realized.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. An organic light emitting diode display device is characterized by comprising a display unit and a touch unit;
the organic light emitting diode display device also comprises a grid driver, a source driver, a touch driver and a time schedule controller, wherein the grid driver, the source driver and the touch driver are positioned in a non-display area;
the time sequence controller is used for respectively inputting grid driving time sequence signals to the grid driver, controlling the grid driver to output scanning signals to the display unit, inputting source driving time sequence signals to the source driver, controlling the source driver to output source display signals to the display unit and controlling the display unit to enter a light-emitting stage; the light-emitting stage comprises a dark state stage and a bright state stage of the organic light-emitting diode;
the time sequence controller is also used for inputting a touch time sequence signal to the touch driver in the dark state stage and controlling the touch driver to output a touch driving signal to the touch unit;
the touch driver is also used for receiving a touch sensing signal returned by the touch unit in the dark state stage and determining a touch position according to the touch sensing signal;
the dark state phase comprises an initialization phase of the organic light emitting diode, a phase of writing a source display signal, an anode initialization phase and a phase of waiting for light emitting; the bright state phase comprises a lighting phase of the organic light emitting diode.
2. The OLED display device of claim 1, wherein the touch unit is located on a light emitting side of the display unit;
or at least part of the touch unit and the cathode electrode in the display unit are arranged in the same layer.
3. The OLED display device of claim 2, wherein the touch unit comprises a self-contained touch unit or a mutual-contained touch unit.
4. The organic light emitting diode display device according to claim 1, further comprising an encapsulation unit;
the packaging unit is arranged between the display unit and the touch control unit; or the packaging unit is arranged on one side of the touch unit far away from the display unit.
5. The organic light emitting diode display device according to claim 4, wherein the encapsulation unit comprises a thin film encapsulation unit or a glass encapsulation unit.
6. The OLED display device according to claim 5, wherein the encapsulation unit comprises a glass encapsulation unit, the OLED display device further comprises an adhesive layer, and the encapsulation unit is adhered to the touch unit through the adhesive layer.
7. The method according to any one of claims 1 to 6, wherein the OLED display device comprises a display unit and a touch unit, and further comprises a gate driver, a source driver, a touch driver and a timing controller in a non-display region, wherein the timing controller is electrically connected to the gate driver, the source driver and the touch driver respectively;
the driving method includes:
the time sequence controller respectively inputs grid driving time sequence signals to the grid driver, controls the grid driver to output scanning signals to the display unit, inputs source driving time sequence signals to the source driver, controls the source driver to output source display signals to the display unit, and controls the display unit to enter a light-emitting stage; the light-emitting stage comprises a dark state stage and a bright state stage of the organic light-emitting diode;
the time schedule controller inputs a touch control time schedule signal to the touch control driver in the dark state stage and controls the touch control driver to output a touch control driving signal to the touch control unit;
the driving method further includes:
the touch driver receives a touch sensing signal returned by the touch unit in the dark state stage and determines a touch position according to the touch sensing signal;
the dark state phase comprises an initialization phase of the organic light emitting diode, a phase of writing a source display signal, an anode initialization phase and a phase of waiting for light emitting; the bright state phase comprises a lighting phase of the organic light emitting diode.
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| CN112735335B (en) | 2020-11-30 | 2022-04-29 | 武汉天马微电子有限公司 | Organic light-emitting display panel, display device and driving method |
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| JP2006243850A (en) * | 2005-02-28 | 2006-09-14 | Toshiba Matsushita Display Technology Co Ltd | Flat display device, image input method therefor, and optical pen |
| CN102402330A (en) * | 2010-09-08 | 2012-04-04 | 乐金显示有限公司 | Display device having touch sensor and method of driving the same |
| CN106371650A (en) * | 2015-07-24 | 2017-02-01 | 瑞鼎科技股份有限公司 | In-cell touch panel driving method |
| CN106409224A (en) * | 2016-10-28 | 2017-02-15 | 京东方科技集团股份有限公司 | Pixel driving circuit, driving circuit, display substrate and display device |
| CN107132948A (en) * | 2017-04-28 | 2017-09-05 | 昆山国显光电有限公司 | Touching display screen driving method |
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