WO2016206234A1 - 检测电路、像素电信号采集电路、显示面板和显示装置 - Google Patents
检测电路、像素电信号采集电路、显示面板和显示装置 Download PDFInfo
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- WO2016206234A1 WO2016206234A1 PCT/CN2015/091920 CN2015091920W WO2016206234A1 WO 2016206234 A1 WO2016206234 A1 WO 2016206234A1 CN 2015091920 W CN2015091920 W CN 2015091920W WO 2016206234 A1 WO2016206234 A1 WO 2016206234A1
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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]
- G09G3/3225—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] using an active matrix
- G09G3/3233—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] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
- G09G3/035—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays for flexible display surfaces
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- G—PHYSICS
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- 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]
- G09G3/3225—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] using an active matrix
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- 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]
- G09G3/3266—Details of drivers for scan electrodes
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- 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]
- G09G3/3275—Details of drivers for data electrodes
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
- H10K59/1216—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being capacitors
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
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- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
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- G—PHYSICS
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- G09G2320/02—Improving the quality of display appearance
- G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
- G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
- G09G2320/045—Compensation of drifts in the characteristics of light emitting or modulating elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/311—Flexible OLED
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E10/549—Organic PV cells
Definitions
- the present invention relates to the field of display technologies, and in particular, to a detection circuit based on an active matrix organic light emitting diode flexible display panel, a pixel electrical signal acquisition circuit, a display panel, and a display device.
- the flexible display panel performs a quick operation on the application in the device through deformation.
- detecting whether the flexible display panel is deformed or not is usually by using a special macromolecular piezoelectric material, and in this technical solution, it is necessary to set the independence.
- the film structure and the special circuit to cooperate, the technical solution for detecting whether the flexible display panel is deformed is complicated.
- the invention provides a detection circuit, a pixel electrical signal acquisition circuit, a display panel and a display device, which are used to solve the problem that the technical solution for detecting whether the flexible display panel is deformed is complicated.
- Embodiments of the present invention provide a detection circuit based on an active matrix organic light emitting diode flexible display panel, including:
- each of the pixel electrical signal acquisition circuits includes an organic light emitting diode and a pixel capacitor, and an anode or a cathode of the organic light emitting diode is a pixel electrode.
- Each of the pixel electrical signal acquisition circuits inputs an electrical signal of the pixel electrode therein to the integrated circuit through a data acquisition line, and the electrical signal changes according to the pixel capacitance.
- the integrated circuit determines that the flexible display panel is deformed based on a change in the electrical signal.
- the electrical signal of the pixel electrode of the organic light emitting diode can be collected in the embodiment of the present invention, It is measured whether the flexible display panel is deformed, and in this technical solution, it is not necessary to provide a separate film structure, thereby reducing the complexity of detecting whether the flexible display panel is deformed.
- the pixel electrical signal acquisition circuit is specifically configured to:
- the electrical signal is input to the integrated circuit through the data acquisition line; and when the falling edge of the scan signal is received, the input of the electrical signal through the data acquisition line to the integrated circuit is stopped; or
- the electrical signal is input to the integrated circuit through the data acquisition line; and upon receipt of the rising edge of the scan signal, the input of the electrical signal through the data acquisition line to the integrated circuit is stopped.
- At least two of the pixel electrical signal acquisition circuits share one of the data acquisition lines; and the pixel electrical signal acquisition circuit sharing the one of the data acquisition lines has only one of the pixels at a time.
- the electrical signal acquisition circuit inputs the electrical signal to the integrated circuit through a data acquisition line.
- the integrated circuit is specifically used to:
- the deformation of the flexible display panel is determined by determining the electrical signal change. accuracy.
- the integrated circuit is also used to:
- the change of the electrical signal is a change of the electrical signal caused by the writing of the pixel data, thereby determining that the flexible display panel is not deformed, further improving the occurrence of the flexible display panel by the change of the electrical signal.
- the accuracy of the deformation is not less than the set threshold.
- the integrated circuit is also used to:
- Deformation information of the flexible display panel is determined according to the converted signal.
- the deformation information of the flexible display panel can be determined according to the converted signal, it is possible to determine what kind of deformation has occurred in the flexible display panel, thereby increasing the function of the flexible display panel.
- the integrated circuit is also used to:
- the operation processing corresponding to the deformation information of the flexible display panel is determined according to the correspondence between the deformation information and the operation processing.
- Embodiments of the present invention provide a pixel electrical signal acquisition circuit, including:
- a pixel circuit comprising an organic light emitting diode and a pixel capacitor, the anode or cathode of the organic light emitting diode being a pixel electrode;
- the pixel circuit controls an electrical signal of the pixel electrode according to the pixel capacitance
- the output circuit inputs the electrical signal to the integrated circuit through the data acquisition line, so that the integrated circuit determines that the flexible display panel is deformed after the electrical signal changes.
- the embodiment of the present invention is capable of collecting an electrical signal of a pixel electrode of an organic light emitting diode in a pixel circuit, and realizing an organic light emitting diode by increasing an output signal to output an electrical signal of a pixel electrode of the organic light emitting diode on the basis of the pixel circuit.
- the change of the electrical signal of the pixel electrode determines that the flexible display panel is deformed without setting a special circuit, which simplifies the technical solution of collecting the electrical signal, thereby reducing the complexity of detecting whether the flexible display panel is deformed.
- the output circuit is specifically configured to:
- the electrical signal is input to the integrated circuit through the data acquisition line; and when the falling edge of the scan signal is received, the input of the electrical signal through the data acquisition line is stopped The integrated circuit; or
- the electrical signal is input to the integrated circuit through the data acquisition line; and upon receiving the rising edge of the scan signal, stopping inputting the electrical signal through the data acquisition line to The integrated circuit.
- the output circuit of the pixel electrical signal acquisition circuit shares a data acquisition line with the output circuit of the at least one other pixel electrical signal acquisition circuit; and the pixel electrical signal sharing the data acquisition line In the acquisition circuit, only one output circuit inputs the electrical signal output to the integrated circuit through the data acquisition line at a time.
- the present invention also provides a display panel, including the above circuit provided by the embodiment of the present invention.
- the embodiment of the invention further provides a display device, which comprises the above display panel provided by the embodiment of the invention.
- FIG. 1(a) is a schematic diagram of a detection circuit based on an AMOLED flexible display panel according to an embodiment of the present invention
- FIG. 1(b) is a schematic diagram of a detection circuit based on an AMOLED flexible display panel according to Embodiment 2 of the present invention
- FIG. 2 is a schematic diagram of a three-pixel electrical signal acquisition circuit according to an embodiment of the present invention.
- 3(a) is a schematic diagram of a scan signal according to a fourth embodiment of the present invention.
- 3(b) is a schematic diagram of a scan signal according to Embodiment 5 of the present invention.
- FIG. 4 is a schematic diagram of an electrical signal outputted according to Embodiment 6 of the present invention.
- FIG. 5(a) is a schematic diagram showing changes in electrical signals during one-way folding according to Embodiment 7 of the present invention.
- FIG. 5(b) is a schematic diagram showing changes in electrical signals during bidirectional folding according to an embodiment of the present invention.
- FIG. 5(c) is a schematic diagram showing changes in electrical signals during one-way crimping according to Embodiment 9 of the present invention.
- FIG. 5(d) is a schematic diagram showing changes in electrical signals during bidirectional curling according to an embodiment of the present invention.
- FIG. 6 is a schematic diagram of an eleven pixel electrical signal acquisition circuit according to an embodiment of the present invention.
- FIG. 7 is a schematic diagram of the principle of twelve-electric signal acquisition according to an embodiment of the present invention.
- the detection circuit of the active-matrix organic light emitting diode (AMOLED) flexible display panel of the embodiment of the invention includes: an IC (Integrated Circuit) and a plurality of pixel electrical signal acquisition circuits;
- the electrical signal acquisition circuit is configured to input an electrical signal of the pixel electrode of the organic light emitting diode in the pixel electrical signal acquisition circuit to the IC through the data acquisition line, wherein the electrical signal of the pixel electrode of the organic light emitting diode is through the pixel electrical signal acquisition circuit
- the pixel capacitance control for indicating deformation of the flexible display panel; the IC is configured to determine that the flexible display panel is deformed after the electrical signal changes.
- a detection circuit based on an AMOLED flexible display panel according to Embodiment 1 of the present invention includes:
- the pixel electrical signal acquisition circuit 101 is configured to organically use the pixel electrical signal acquisition circuit 101.
- the electrical signal of the pixel electrode of the light emitting diode is input to the IC 100 through the data acquisition line 102, wherein the electrical signal of the pixel electrode of the organic light emitting diode is controlled by the pixel capacitance in the pixel electrical signal acquisition circuit 101 for indicating deformation of the flexible display panel. ;
- the IC 100 is configured to determine that the flexible display panel is deformed after the electrical signal changes.
- the pixel electrode may be the anode of the organic light emitting diode or the cathode of the organic light emitting diode. Specifically, for the commonly used AMOLED, the pixel electrode is the anode of the organic light emitting diode, and for the inverted AMOLED. The pixel electrode is a cathode of the organic light emitting diode.
- the circuit diagram of the pixel electrical signal acquisition circuit 101 of the embodiment of the present invention is as shown in FIG. 2.
- the connection mode is similar to that of FIG. This will not be repeated here.
- organic light emitting diode 200 may be replaced by a resistor or the like which can directly reflect changes in the pixel capacitance through pixel electrode changes.
- the deformation of the flexible display panel can be determined by determining the change of the electrical signal of the pixel electrode of the organic light emitting diode. This is because when the flexible display panel is deformed, the pixel capacitance changes, and the change of the pixel capacitance directly acts.
- the change of the electrical signal of the pixel electrode of the organic light emitting diode can detect the deformation of the flexible display panel by detecting the change of the electrical signal of the pixel electrode of the organic light emitting diode, and compared with the method of directly detecting the change of the pixel capacitance. The manner of detecting the electrical signal of the pixel electrode of the organic light emitting diode is simpler.
- each pixel electrical signal collecting circuit corresponds to a different data collecting line
- the process of collecting the electrical signal of the pixel electrode of the organic light emitting diode is: the pixel electrical signal collecting circuit passes the electrical signal of the pixel electrode of the organic light emitting diode in the pixel electrical signal collecting circuit when the rising edge of the received scanning signal is passed The data acquisition line is input to the IC; and when the falling edge of the scan signal is received, the electrical signal of the pixel electrode of the organic light emitting diode in the pixel electrical signal acquisition circuit is stopped from being input to the IC through the data acquisition line; or
- the electrical signal of the pixel electrode of the organic light emitting diode in the pixel electrical signal acquisition circuit is input to the IC through the data acquisition line; and when the rising edge of the scan signal is received, the pixel electrical signal is stopped.
- the electrical signal of the pixel electrode of the organic light emitting diode in the acquisition circuit is input to the IC through the data acquisition line.
- the input IC of the electrical signal of the pixel electrode of the organic light emitting diode in the embodiment of the present invention may also be as shown in FIG. 1(b), at least two pixel electrical signal collecting circuits share one data collecting line; when at least two pixels When the electric signal acquisition circuit shares a data acquisition line, the wiring of the flexible display panel is reduced.
- the process of collecting the electrical signal of the pixel electrode of the specific organic light emitting diode is: the pixel electrical signal collecting circuit passes the electrical signal of the pixel electrode of the organic light emitting diode in the pixel electrical signal collecting circuit through the rising edge of the received scanning signal
- the acquisition line is input to the IC; and when the falling edge of the scan signal is received, the electrical signal of the pixel electrode of the organic light emitting diode in the pixel electrical signal acquisition circuit is stopped from being input to the IC through the data acquisition line; or
- the electrical signal of the pixel electrode of the organic light emitting diode in the pixel electrical signal acquisition circuit is input to the IC through the data acquisition line; and when the rising edge of the scan signal is received, the pixel electrical signal is stopped.
- the electrical signal of the pixel electrode of the organic light emitting diode in the acquisition circuit is input to the IC through the data acquisition line;
- the pixel electrical signal acquisition circuit sharing a data acquisition line only one pixel electrical signal acquisition circuit inputs the electrical signal to the IC through the data acquisition line at a time.
- the scan signal in the embodiment of the present invention is a signal outputted by the shift register, and may also be a signal provided by the IC, and is selected according to actual needs.
- 103 in FIG. 1(a) and FIG. 1(b) is a gate line, and the scan signal in the embodiment of the present invention can be input to the pixel electric signal acquisition circuit through the gate line.
- the pixel electrical signal acquisition circuit inputs the electrical signal of the pixel electrode of the organic light emitting diode to the IC at the rising edge of the received scan signal, and stops the organic signal when the falling edge of the scan signal is received.
- the electrical signal of the pixel electrode of the light emitting diode is input to the IC, or the pixel electrical signal collecting circuit inputs the electrical signal of the pixel electrode of the organic light emitting diode to the IC when the falling edge of the received scanning signal is received, and the rising of the received scanning signal
- the electrical signal of the pixel electrode of the organic light emitting diode is stopped from being input to the IC, wherein from the electrical signal input to the pixel electrode of the organic light emitting diode of the IC to the electrical signal of the pixel electrode of the organic light emitting diode being stopped input to the IC, this
- the segment time is also referred to as the effective time of the scan signal, that is, the IC in the embodiment of the present invention collects the electrical signal of the pixel electrode of the organic light emitting diode at the effective time of the scan signal.
- the pixel electrical signal acquisition circuit receives the rising edge of the scan signal, the electrical signal of the pixel electrode of the organic light emitting diode is input to the IC, and when the falling edge of the scan signal is received, the stop will be The electrical signal of the pixel electrode of the light emitting diode is input to the IC, that is, the high time of the scanning signal is the effective time; if the pixel electrical signal collecting circuit is at the falling edge of the received scanning signal, the pixel electrode of the organic light emitting diode is electrically The signal is input to the IC, and when the rising edge of the scan signal is received, the electrical signal of the pixel electrode of the organic light emitting diode is stopped from being input to the IC, that is, the low level time of the scan signal is the effective time.
- the low level time is a schematic diagram of the effective time in the embodiment of the present invention
- the high level time in the embodiment of the present invention is a schematic diagram of the effective time.
- the low level time of the scan signal is the effective time, so the IC collects the electrical signal at the low level of the scan signal, that is, the time of the first frame, and the scan signal is high at the second frame. Level, IC does not collect electrical signals.
- an optional method for determining the deformation of the flexible display panel in the embodiment of the present invention is:
- the thresholds set in the embodiments of the present invention are set according to actual needs.
- determining that the flexible display panel is not deformed is that when the pixel data is written, a decrease in the electrical signal is generated, and the change value of the electrical signal is generated.
- the value of the electrical signal change is much larger than that due to the deformation of the flexible display panel. Therefore, when the IC determines that the change value of the electrical signal is greater than or equal to the set threshold, it is determined that the flexible display panel is not deformed.
- an optional method for determining the deformation information of the flexible display panel is further provided in the embodiment of the present invention:
- Deformation information of the flexible display panel is determined according to the converted signal.
- the deformation information of the flexible display panel in the embodiment of the present invention is curling, folding, and the like.
- the change of the electrical signal it is converted into a signal that the IC can recognize, as shown in the reverse deformation in the first frame of FIG. 4, and the change of the electrical signal is changed from large to small, and the IC converts the change of the electrical signal into a recognizable
- the positive signal if the second frame is deformed as shown in Fig. 4, the change of the electrical signal is from small to large, then the IC converts the change of the electrical signal into a negative signal that can be recognized, and determines the deformation according to the converted signal.
- the influence range of the converted signal is a straight line
- the number of creases is determined according to the number of straight lines
- the direction of the deformation is determined according to the positive and negative directions, thereby determining the deformation information of the flexible display panel; if the converted signal has a large influence range, Instead of a straight line, the deformation direction of the flexible display panel is determined by determining the direction of the deformation according to the positive and negative.
- the positively corresponding deformation direction is the front, and the negative corresponding deformation direction is the rear.
- the deformation information of the flexible display panel in the embodiment of the present invention is a schematic diagram of the forward folding; the specific process for determining that the flexible display panel is folded forward is:
- the IC converts it into an identifiable signal positive according to the change of the electrical signal, and determines that the positive range of the signal is a straight line according to the identifiable signal, and determines that the deformation information of the flexible display panel is folded forward.
- the left half of the flexible display panel is folded back, and the right half is folded forward, which specifically determines that the left half of the flexible display panel is folded backward, right.
- the specific process of half-front folding is:
- the IC converts the positive or negative signal into a recognizable signal according to the change of the electrical signal.
- the positive range of the signal is determined according to the identifiable signal as a straight line of the right half of the flexible display panel, and the signal is negative according to the identifiable signal.
- the range is a straight line of the left half of the flexible display panel, and it is determined that the deformation information of the flexible display panel is folded backwards in the left half and the right half is folded forward.
- the deformation information of the flexible display panel of the embodiment of the present invention is a schematic diagram of forward curling, and the specific process for specifically determining the deformation information of the flexible display panel as the forward curl is:
- the IC converts it into a recognizable signal positive according to the change of the electrical signal, and determines the positive range of the signal as a part of the flexible display panel or the entire flexible display panel according to the recognizable signal, that is, the electrical signal variation range of the flexible display panel is large.
- the area change determines that the deformation information of the flexible display panel is forward curl.
- the deformation information of the flexible display panel of the embodiment of the present invention is a schematic diagram in which the left half is curled forward and the right half is curled backward, which specifically determines that the deformation information of the flexible display panel is forwardly curled.
- the specific process is similar to the specific process of determining that the deformation information of the flexible display panel is forward curling in FIG. 5(c), and details are not described herein again.
- the operation processing corresponding to the deformation information of the flexible display panel is determined according to the correspondence between the deformation information and the operation processing.
- the operation processing includes, but is not limited to, fast forward of a video, webpage refresh, text switching, document opening, and the like.
- the operation processing corresponding to the one-way forward curl is fast-forward of the video screen, and after determining that the deformation information of the flexible display panel is one-way forward curl, the IC determines that the corresponding operation processing is fast forward of the video.
- the pixel electrical signal acquisition circuit of the embodiment of the present invention may be a circuit, and may further include a pixel circuit 600 and an output circuit 601 as shown in FIG.
- the pixel circuit 600 is configured to control an electrical signal of the pixel electrode of the output organic light emitting diode according to the pixel capacitance in the pixel circuit;
- the output circuit 601 is configured to input an electrical signal of the pixel electrode of the organic light emitting diode to the IC through the data acquisition line, so that the IC determines that the flexible display panel is deformed after the electrical signal changes.
- the pixel electrode may be the anode of the organic light emitting diode or the cathode of the organic light emitting diode.
- the pixel electrode is the anode of the organic light emitting diode, and for the inverted AMOLED.
- the pixel electrode is a cathode of the organic light emitting diode.
- the circuit diagram of the pixel circuit 600 and the output circuit 601 of the embodiment of the present invention is as shown in FIG. 6.
- the connection mode is similar to that of FIG. I will not repeat them here.
- the pixel circuit 600 is not limited to the connection form in the embodiment of the present invention, and the output circuit 601 may be connected to the pixel electrode terminal P1 of the organic light emitting diode in the pixel circuit 600.
- the output circuit 601 of the embodiment of the present invention outputs the electrical signal of the pixel electrode of the organic light emitting diode. As shown in FIG. 1( a ), the output circuit 601 of each pixel electrical signal collecting circuit corresponds to a different data acquisition. line;
- the process of collecting the electrical signal of the pixel electrode of the specific organic light emitting diode is: the output circuit 601 inputs the electrical signal of the pixel electrode of the organic light emitting diode in the pixel circuit to the IC through the data acquisition line when the rising edge of the received scanning signal is received. And stopping receiving an electrical signal of the pixel electrode of the organic light emitting diode in the pixel circuit through the data acquisition line to the IC when receiving the falling edge of the scan signal; or
- the electrical signal of the pixel electrode of the organic light emitting diode in the pixel circuit is input to the IC through the data acquisition line; and when the rising edge of the scan signal is received, the organic light emission in the pixel circuit is stopped.
- the electrical signal of the pixel electrode of the diode is input to the IC through the data acquisition line.
- the input IC of the electrical signal of the pixel electrode of the organic light emitting diode in the embodiment of the present invention may also be as shown in FIG. 1(b), the output circuit 601 of the pixel electrical signal collecting circuit and the at least one other pixel electrical signal collecting circuit.
- the output circuit shares a single data acquisition line.
- the process of collecting the electrical signals of the pixel electrodes of the specific organic light emitting diode is: the output circuit 601 is Receiving the rising edge of the scan signal, inputting the electrical signal of the pixel electrode of the organic light emitting diode in the pixel circuit to the IC through the data acquisition line; and stopping the organic light emitting diode in the pixel circuit when receiving the falling edge of the scan signal The electrical signal of the pixel electrode is input to the IC through the data acquisition line; or
- the electrical signal of the pixel electrode of the organic light emitting diode in the pixel circuit is input to the IC through the data acquisition line; and when the rising edge of the scan signal is received, the organic light emission in the pixel circuit is stopped.
- the electrical signal of the pixel electrode of the diode is input to the IC through the data acquisition line;
- the scan signal in the embodiment of the present invention is a signal outputted by the shift register, and may also be a signal provided by the IC, and is selected according to actual needs.
- 103 in FIG. 1(a) and FIG. 1(b) is a gate line, and the scan signal in the embodiment of the present invention can be input to the output circuit of the pixel electric signal acquisition circuit through the gate line.
- the output circuit of the pixel electrical signal acquisition circuit inputs the electrical signal of the pixel electrode of the organic light emitting diode to the IC when the rising edge of the received scan signal is received, and when the falling edge of the scan signal is received, Stopping the electrical signal of the pixel electrode of the organic light emitting diode to the IC, or the output circuit of the pixel electrical signal collecting circuit inputs the electrical signal of the pixel electrode of the organic light emitting diode to the IC when the falling edge of the received scanning signal is received, and When receiving the rising edge of the scan signal, stopping inputting the electrical signal of the pixel electrode of the organic light emitting diode to the IC, wherein the input from the electrical signal input to the pixel electrode of the organic light emitting diode to the pixel electrode of the organic light emitting diode is stopped.
- the period of time is referred to as the effective time of the scan signal, that is, the IC in the embodiment of the present invention collects the electrical signal of the pixel electrode of the
- the output circuit of the pixel electrical signal acquisition circuit inputs the electrical signal of the pixel electrode of the organic light emitting diode to the IC at the rising edge of the received scan signal, and stops the organic light emission when the falling edge of the scan signal is received
- the electrical signal of the pixel electrode of the diode is input to the IC, that is, the high level time of the scan signal is the effective time; if the output circuit of the pixel electrical signal acquisition circuit is at the falling edge of the received scan signal, the pixel electrode of the organic light emitting diode is The electrical signal is input to the IC, and when the rising edge of the scan signal is received, the electrical signal of the pixel electrode of the organic light emitting diode is stopped from being input to the IC, that is, the low level time of the scan signal is the effective time.
- an electric signal outputted by only one output circuit at a time is input to the IC through a data acquisition line.
- the flexible display panel can be followed.
- the 32*60 sub-pixel is divided into blocks. If the refresh rate (frame rate of the scanning signal) is increased to 120 Hz, the flexible display panel can be divided into 120 blocks vertically.
- the sub-pixels in the diagonal direction within each of the divided blocks are as shown in FIG.
- an embodiment of the present invention provides a display panel, including the above circuit provided by the embodiment of the present invention. Since the principle of solving the problem of the display panel is similar to the above circuit, the implementation of the display panel can be referred to the implementation of the above circuit, and the repeated description is omitted.
- an embodiment of the present invention provides a display device, including the above display panel provided by the embodiment of the present invention.
- the display device can be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like. Since the principle of solving the problem of the display device is similar to that of the display panel, the implementation of the display device can be referred to the implementation of the display panel, and the repeated description is omitted.
- the detection circuit based on the AMOLED flexible display panel of the embodiment of the present invention comprises: an integrated circuit IC and a plurality of pixel electrical signal acquisition circuits; and a pixel electrical signal acquisition circuit for using the pixel electrical signal acquisition circuit
- the electrical signal of the pixel electrode of the OLED is input to the IC through the data acquisition line, wherein the electrical signal of the pixel electrode of the OLED is controlled by the pixel capacitance of the pixel electrical signal acquisition circuit for indicating deformation of the flexible display panel.
- the IC is used to determine the deformation of the flexible display panel after the electrical signal changes.
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Abstract
Description
Claims (12)
- 一种基于有源矩阵有机发光二极管柔性显示面板的检测电路,其特征在于,包括:集成电路;以及多个像素电信号采集电路,每个所述像素电信号采集电路包括有机发光二极管和像素电容,所述有机发光二极管的阳极或阴极为像素电极,其中,每个所述像素电信号采集电路将其中的像素电极的电信号通过数据采集线输入到所述集成电路,所述电信号根据所述像素电容发生变化;其中,所述集成电路基于所述电信号的变化确定所述柔性显示面板发生形变。
- 如权利要求1所述的电路,其特征在于,所述像素电信号采集电路具体用于:在收到的扫描信号上升沿时,将所述电信号通过数据采集线输入到所述集成电路;以及在收到所述扫描信号下降沿时,停止将所述电信号通过数据采集线输入到所述集成电路;或在收到的扫描信号下降沿时,将所述电信号通过数据采集线输入到所述集成电路;以及在收到所述扫描信号上升沿时,停止将所述电信号通过数据采集线输入到所述集成电路。
- 如权利要求2所述的电路,其特征在于,至少两个所述像素电信号采集电路共用一根所述数据采集线;所述共用一根所述数据采集线的所述像素电信号采集电路中,每次仅一个所述像素电信号采集电路通过数据采集线将所述电信号输入到所述集成电路。
- 如权利要求1所述的电路,其特征在于,所述集成电路具体用于:在确定所述电信号发生变化,且变化值小于设定的阈值后,确定所述柔性显示面板发生形变。
- 如权利要求4所述的电路,其特征在于,所述集成电路还用于:若所述变化值大于或等于设定的阈值,确定所述柔性显示面板不发生形变。
- 如权利要求1~5任一所述的电路,其特征在于,所述集成电路还用于:确定所述柔性显示面板发生形变后,将发生变化的所述电信号转换成所述集 成电路能够识别的信号;根据转换后的信号,确定所述柔性显示面板的形变信息。
- 如权利要求6所述的电路,其特征在于,所述集成电路还用于:确定所述柔性显示面板的形变信息后,根据形变信息与操作处理的对应关系,确定所述柔性显示面板的形变信息对应的操作处理。
- 一种像素电信号采集电路,其特征在于,包括:像素电路,包括有机发光二极管和像素电容,所述有机发光二极管的阳极或阴极为像素电极;以及输出电路,其中,所述像素电路根据所述像素电容控制所述像素电极的电信号;其中,所述输出电路将所述电信号通过数据采集线输入到集成电路,以使所述集成电路在所述电信号发生变化后,确定所述柔性显示面板发生形变。
- 如权利要求8所述的电路,其特征在于,所述输出电路具体用于:在收到的扫描信号上升沿时,将所述电信号通过数据采集线输入到所述集成电路;以及在收到所述扫描信号下降沿时,停止将所述电信号通过数据采集线输入到所述集成电路;或在收到的扫描信号下降沿时,将所述电信号通过数据采集线输入到所述集成电路;以及在收到所述扫描信号上升沿时,停止将所述电信号通过数据采集线输入到所述集成电路。
- 如权利要求9所述的电路,其特征在于,所述像素电信号采集电路的输出电路与至少一个其他像素电信号采集电路中的输出电路共用一根数据采集线;所述共用一根所述数据采集线的所述像素电信号采集电路中,每次仅一个输出电路将输出的电信号通过数据采集线输入到所述集成电路。
- 一种显示面板,其特征在于,包括如权利要求1~7任一所述的电路。
- 一种显示装置,其特征在于,包括如权利要求11所述的显示面板。
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CN105609028B (zh) * | 2016-03-23 | 2018-03-27 | 武汉华星光电技术有限公司 | 假压测试方法与装置 |
KR102475589B1 (ko) * | 2016-04-29 | 2022-12-07 | 엘지디스플레이 주식회사 | 플렉서블 유기발광 표시장치 |
CN105810138B (zh) * | 2016-06-01 | 2019-07-23 | 京东方科技集团股份有限公司 | 显示不良的维修方法 |
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