Abstract: A display device includes a first pixel row, a first first-structure transmission line, a first second-structure transmission line, a first transistor, and a second transistor. The first pixel row includes a first first-color sub-pixel and a second first-color sub-pixel both for displaying a first color. The first second-structure transmission line neighbors the first first-structure transmission line with no intervening transmission line analogous to the first first-structure transmission line or the first second-structure transmission line being disposed between the first first-structure transmission line and the first second-structure transmission line. The first transistor is electrically connected through the first first-structure transmission line to the first first-color sub-pixel and receives a first test voltage.

Abstract: The present invention provides a display panel including a display area and a terminal area adjacent to each other, the terminal area includes a driving chip area bonded with a driving chip, a plurality of touch leads are provided in the driving chip area, first ends of the plurality of touch leads are electrically connected to a plurality of touch electrodes in the display area, and a plurality of test pins is electrically connected to second ends of the plurality of touch leads and used for transmitting a test signal are also located in the driving chip area.

Abstract: The present disclosure discloses a display driving circuit. The display driving circuit is configured to have a function of detecting a short of a data line occurring on a display panel.

Abstract: A display apparatus includes a display panel in which pixels, signal lines connected to the pixels, and gate lines supplying gate signals to the pixels are provided, and link lines provided on a rear surface of the display panel and connected to the signal lines provided on a front surface of the display panel, wherein a test unit is provided at ends of the link lines on the rear surface.

Abstract: An object is to provide a display device that performs accurate display. A circuit is formed using a transistor that includes an oxide semiconductor and has a low off-state current. A precharge circuit or an inspection circuit is formed in addition to a pixel circuit. The off-state current is low because the oxide semiconductor is used. Thus, it is not likely that a signal or voltage is leaked in the precharge circuit or the inspection circuit to cause defective display. As a result, a display device that performs accurate display can be provided.

Abstract: A display apparatus may include a substrate including a display area and a peripheral area, pixel circuits in the display area, data lines in the display area and connected to the pixel circuits, first circuit driving signal lines in the peripheral area, and configured to transmit a first circuit driving signal to drive the pixel circuits, a data test pad portion at the peripheral area, and including data test pads connected to the data lines, a pad portion on the peripheral area, and including first circuit pads connected to the first circuit driving signal lines, a first test pad portion at the peripheral area, and including first circuit test pads connected to the first circuit pads, and a second test pad portion at the peripheral area, and including second circuit test pads connected to the first circuit test pads.

Abstract: The control circuit for controlling a display panel is provided. The control circuit includes a first driving circuit and a second driving circuit for driving the display panel. The first driving circuit includes first output terminals and first input terminals. The first driving circuit outputs a plurality of test signals to the first output terminals sequentially during different periods in a diagnosis stage. The second driving circuit includes second input terminals and second output terminals. The second driving circuit receives the test signals through the second input terminals in the diagnosis stage, and outputs a plurality of response signals to the second output terminals sequentially during different periods in response to the test signals. The first driving circuit receives the response signals through the first input terminals, and judges a connecting status of the first driving circuit and the second driving circuit according to the response signals.

Abstract: A display panel, comprising a first insulating structural layer, a first crack detection line, a second insulating structural layer and a second crack detection line which are sequentially arranged on a substrate, wherein the first crack detection line and the second crack detection line are both located in a peripheral area and are arranged around a display area, one end of the first crack detection line is configured to receive a detection signal, and the other end of the first crack detection line is configured to output a first output signal, and one end of the second crack detection line is configured to receive a detection signal and the other end of the second crack detection line is configured to output a second output signal.

Abstract: An image sticking test method and an image sticking test device. The image sticking test method includes: acquiring a first correspondence between a source-drain current of a preset drive transistor and time within a first preset time after a voltage of the preset drive transistor in an array substrate is switched from a first preset voltage to a second preset voltage; acquiring a second correspondence between a source-drain current of the preset drive transistor and time within a second preset time after the voltage of the preset drive transistor is switched from a third preset voltage to the second preset voltage; and acquiring a first image sticking test curve of the array substrate according to the first correspondence, the second correspondence and an image sticking evaluation formula, where the first image sticking test curve is a correspondence between time and an image sticking evaluation value.

Abstract: In a display device, when blue (B) light enters a first liquid crystal panel, radiated light radiated from the first liquid crystal panel contains red (R) phosphorescence having a wavelength range longer than blue (B) light due to a deterioration of a liquid crystal material. Thus, in the display device, an optical sensor device is provided behind a mirror comprised of a dichroic mirror to monitor or the like the service life of the first liquid crystal panel on the basis of a result of reception, at the optical sensor device, of light having a frequency band ranging from 600 nm to 650 nm, and makes notification of the result. Furthermore, on the basis of a result from the optical sensor device, an electrode used to suck impurities provided at the first liquid crystal panel is driven to sweep ionic impurities from a display region.

Abstract: An image element is disclosed having first and second supply terminals, a light emitting semiconductor component, a driver circuit comprising a driver transistor, a storage capacitor, and a switching transistor, and a trigger circuit comprising an output transistor and a control capacitor. The light emitting semiconductor component and the driver transistor are arranged in series with each other and between the first supply terminal and the second supply terminal. A first electrode of the storage capacitor is coupled to a control terminal of the driver transistor. The switching transistor is configured to switch on and off a current flow through the light emitting semiconductor component. A first electrode of the control capacitor is connected to a control terminal of the output transistor. A first terminal of the output transistor is connected to a control terminal of the switching transistor. Furthermore, a method for operating an image element, in particular such an image element, is disclosed.

Abstract: This application discloses a method for detecting residual image of a display panel, including: controlling a display panel to display a checkerboard image including pure-color sub-images, gray scales of two adjacent pure-color sub-images are a first gray scale and a second gray scale; controlling, after the checkerboard image has been displayed for a first time period, the display panel to display a detection image with a predetermined gray scale; controlling a reference display panel to display a calibration image including first and second matrix images, a gray scale of each first matrix image is the same as the predetermined gray scale, gray scales of each second matrix image includes a third gray scale being the same as the predetermined gray scale and a fourth gray scale different from the predetermined gray scale; comparing the detection image and the calibration image to obtain a residual image level of the display panel.

Abstract: A display substrate, a display device and a test method of the display substrate are disclosed. The display substrate includes a display region and a peripheral region. The peripheral region includes: a first leading wire extending in a first direction and including a first end and a second end; a first test wire electrically connected with the first leading wire at a first position of the first test wire between the first end and the second end; the display region includes first signal wires of first group extending in a second direction, two first signal wires arranged outermost in the first direction among the first signal wires of first group are respectively connected with the first end and the second end, and remaining first signal wires among the first signal wires of first group are connected with the first leading wire between the first end and the second end.

Abstract: A device for bonding a fingerprint sensor to a display panel including a picker for securing a rear surface of a fingerprint sensing unit with a first planar surface having a (1-1)-th inclination, a stage for securing a front surface of the display panel with a second planar surface having a (2-1)-th inclination, distance measuring units for measuring distances to first points on a front surface of the fingerprint sensing unit and to second points on a rear surface of the display panel, a controller outputting a control signal that adjusts an inclination of the first planar surface or the second planar surface, an inclination adjusting unit for adjusting an inclination of the first and planar surfaces, and a vertical driving unit for moving at least one of the first and second planar surfaces along a first direction to bond the fingerprint sensing unit to the display panel.

Abstract: To provide a camera calibration device and a camera calibration method which can easily calibrate a relationship between a machine coordinate system of a machine tool and a camera coordinate system of a camera. A camera calibration device calibrates an imaging means of a machine tool, the machine tool includes: a touch probe which acquires one point whose machine coordinates are known; a camera which images the one point and a pattern including a feature used for calibration; and a drive mechanism which moves a table or a spindle in two orthogonal directions and an image obtained by imaging the one point and the pattern and images obtained by imaging the pattern or/and the one point when the table or a machining machine is moved in the two directions are used to calculate an external parameter by calculating a positional posture relationship between the machine coordinate system and the pattern.

Abstract: A gate driver IC includes a first diode, a second diode, a first comparator, a second comparator, and a judgement circuit. The first comparator compares a first potential difference between both ends of the first diode and a first threshold. The second comparator compares a second potential difference between both ends of the second diode and a second threshold. Based on comparison results of the first comparator and the second comparator, the judgement circuit determines occurrence of disconnection.

Abstract: The present disclosure provides a display panel, including: a display driving circuit; power signal lines connected to the display driving circuit; an external stress detection terminal; and a stress-detection-miss detection circuit, that first access ports of the external stress detection terminal are one-to-one connected to the power signal lines; a second access port of the external stress detection terminal is connected to the stress-detection-miss detection circuit; any one of the power signal lines transmits a power supply voltage during normal display of the display panel, and transmits a first high-voltage detection voltage from the first access ports during a stress image detection of the display panel; and the stress-detection-miss detection circuit includes: a prompt information path formed responding to a second high-voltage detection voltage from the second access port during the stress image detection, to generate prompt information responding to a low-voltage detection voltage from the second a

Abstract: A display device failure detection method, device and system are disclosed. The display device failure detection method includes that: at least one detection picture image acquired by an image acquisition device when a target display device regularly displays a detection picture sequence is received, and at least one image to be detected is determined from the at least one detection picture image (S11); at least one region to be detected corresponding to at least one display region of the target display device in the at least one image to be detected is determined, and image data of the at least one region to be detected is processed to obtain at least one image processing result (S13); and whether a display exception occurs to the target display device is judged according to the image processing result (S15).

Abstract: A display substrate and a manufacturing method thereof, a display panel, a display motherboard and a testing method thereof, and a display device are provided in the present disclosure. The display substrate is provided with a display region and at least a wiring region outside the display region. The display substrate includes a base substrate and a plurality of connection structures on the base substrate. The plurality of connection structures are connected to a plurality of edge signal terminals through a control module. All of the plurality of connection structures, the plurality of edge signal terminals and the control module are located in the wiring region. The plurality of edge signal terminals are located on an edge of the wiring region. The control circuit is configured to control the connection or disconnection between the plurality of signal terminals and the plurality of connection structures.

Abstract: A wearable visualization system that includes a wearable visualization device. The wearable visualization device includes a housing. A display couples to the housing that displays an image for a user. A camera couples to the housing and captures the image. A computer system receives the image from the camera and compares the image to a master image to determine if the image matches the master image.

Abstract: Provided are a touch display panel and a detection method thereof, and a touch display apparatus. The touch display panel includes a display structure layer, a touch structure layer, a touch detection circuit and a detection signal line. The display structure layer includes a plurality of data lines, and the touch structure layer includes a plurality of touch signal lines. A timing of the touch display panel includes a detection stage. The touch detection circuit is connected with touch signal lines, data lines and the detection signal line, and is configured to provide, in the detection stage, a signal of the touch signal line to a data line under a control of a detection signal of the detection signal line, to detect the touch signal line according to a light emission state of pixel units to which the data line is connected.

Abstract: An electronic device includes a display, a display driver integrated circuit (DDI) electrically coupled with the display, a memory that stores an image, and a processor. The processor is configured to analyze at least one feature of the image and to determine at least one of a movement range, a movement interval, and a movement period of the image based on the at least one feature. The DDI is configured to display the image in the display when at least part of the processor is deactivated, and to change a display location of the image within the movement range depending on the movement interval and the movement period.

Abstract: Disclosed are an apparatus for picture test of a display panel and a test method for a picture of a display panel. The apparatus includes: a first scanning unit, a second scanning unit, a data signal source and a controller. The display panel includes pixel units, and for the same column of pixel units, the odd numbered rows of pixel units and the even numbered rows of pixel units are connected with different data lines, respectively, and the individual pixel units of the same row are connected with the same grid line, respectively. The first scanning unit may be configured for receiving and transmitting a first scanning signal for scanning odd numbered rows of grid lines, and the second scanning unit may be configured for receiving and transmitting a second scanning signal for scanning even numbered rows of grid lines.

Abstract: Provided is a display panel, a panel lighting test method thereof, and a display device. The display panel includes a display area and a non-display area. The display area includes a plurality of data lines, and at least two of data lines are different in length in the display area. The non-display area includes a panel lighting test terminal for inputting panel lighting signals to the display panel and a switching circuit including a plurality of switching units, and each switching units is associated to at least two data lines. The panel lighting test terminal is connected to the plurality of switching units, and connected to an i-th switching unit closest to the panel lighting test terminal through first lines. The display panel for image display solves the problem of the insufficient test accuracy due to signal delay in the related art.

Abstract: A test circuit and a test method for display panels, the test circuit comprising: switch units, first test leads, first test pads, a second test pad and a second test lead; wherein numbers of the switch units, the first test leads and the first test pads are the same; each of the first test leads is configured to be electrically connected to a corresponding one of the display panels; each of the first test pads is electrically connected to an output terminal of the corresponding switch unit, and each of the first test pads is electrically connected to the corresponding first test lead; the second test pad and the second test lead are electrically connected to an input terminals of the switch units.

Abstract: In various examples, defective cells from a first layer of a multi-layer liquid crystal display (LCD) may be compensated for by using one or more cells from a second layer of the multi-layer LCD. Color values corresponding to additional cells of the first layer that may be affected by the compensation of the second layer may also be adjusted to counter the compensation in order to generate a final pixel or sub-pixel value that closely mirrors the desired value from the image data. In addition, backlighting of the LCD may be adjusted such that one or more cells of the backlights—e.g., individual light-emitting diodes (LEDs)—may be adjusted to further aid in compensating for or mitigating the appearance of the defective cell.

Abstract: A medical image processing apparatus includes: a defective pixel specifier configured to specify a defective pixel in a captured image based on a pixel level of each pixel in the captured image; a setting unit configured to set a correction degree of a defect correction process of making a brightness of the defective pixel approach a brightness of a discrimination area including surrounding pixels positioned around the defective pixel; and a defect corrector configured to perform the defect correction process according to the correction degree. When a difference between the brightness of the defective pixel and the brightness of the discrimination area is divided into a first range and a second range in which the difference is larger than that in the first range, the setting unit sets a higher correction degree for the difference is in the second range than the first range.

Abstract: The present disclosure provides a bonding region connection structure, a touch screen, and a display device. The bonding region connection structure for connecting a touch substrate and a flexible printed circuit includes: a plurality of electrode trace pins disposed at the bonding region, wherein the bonding region is between the touch substrate and the flexible printed circuit, each of the plurality of the electrode trace pins being respectively configured to connect to a touch electrode on the touch substrate and an electrode on the flexible printed circuit; and a plurality of dummy pins respectively disposed on both sides of the electrode trace pins, one end of each of the plurality of dummy pins leading to the touch electrode being respectively connected to a corresponding first test point by a lead wire, and configured to measure impedance of the bonding region.

Abstract: A display device includes a display panel, a first memory, and a degradation compensator. The first memory device stores stress data including degradation values representing a degradation degree of each of the blocks in the display panel. The degradation compensator loads the stress data from the first memory device, updates the stress data based on current input data and a maximum degradation value, updates the maximum degradation value based on degradation values included in the updated stress data, and generate compensated data by compensating for the current input data based on the updated stress data. The degradation compensator determines whether a first degradation value included in the stress data is normal by comparing the first degradation value with the maximum degradation value, and updates the first degradation value based on at least one adjacent degradation value adjacent to the first degradation value, when the first degradation value is abnormal.

Abstract: A display device according to an exemplary embodiment includes a display panel that includes a plurality of pixels, and an image shifter that corrects an image corresponding to input image data to be shifted based on age data with respect to the plurality of pixels and an input grayscale of input image data and outputs corrected image data, wherein a shift range of the image is reduced when an age value of the age data exceeds a threshold value.

Abstract: A display device may include an image processor which is configured to process an image signal and includes a detector configured to determine a group of parameters by detecting a waveform of a detected partial discharge and measuring each of parameters of the waveform in the form of a binary number and a controller configured to identify the partial discharge by comparing the determined group with previously stored groups; and a display unit configured to display the image signal.

Abstract: A display module includes a plurality of pixels, a plurality of data lines connected to the pixels, a demultiplexer connected to the data lines, a plurality of first pads connected to the demultiplexer, and a plurality of second pads. The second pads include a plurality of first test pads connected to corresponding data lines of the data lines and a first dummy pad connected to one first test pad of the first test pads.

Abstract: A second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter electrode, the counter electrode is divided into a plurality of blocks, the counter electrodes of the respective divided blocks are commonly provided for the respective pixels of the plurality of display lines in series, and the counter electrodes also serve as scanning electrodes of the touch panel, and a counter electrode selector circuit that selects the counter electrodes. The counter electrode selector circuit includes an address decoder circuit that selects the counter electrodes of the respective blocks for a given period, and a selector circuit that applies a touch panel scanning voltage to the counter electrode of the block selected by the address decoder circuit, and applies a counter voltage to the counter electrodes of the blocks not selected by the address decoder circuit.

Abstract: A system reads a desired circuit parameter from a pixel circuit that includes a light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input, and a storage device to store a programming signal. One embodiment of the extraction system turns off the drive device and supplies a predetermined voltage from an external source to the light emitting device, discharges the light emitting device until the light emitting device turns off, and then reads the voltage on the light emitting device while that device is turned off. The voltages on the light emitting devices in a plurality of pixel circuits may be read via the same external line, at different times.

Abstract: An array substrate includes a base substrate, a plurality of first signal lines extending in a first direction, a plurality of second signal lines located on a different layer from the first signal lines and extending in a second direction intersecting the first direction, and a plurality of touch signal lines extending in the second direction disposed on the base substrate. Each touch signal line includes a first touch line segment and a second touch line segment, the first touch line segment disposed on the same layer as the first signal lines, and at least partially overlapping with at least one of the second signal lines in a direction perpendicular to a surface of the base substrate, the second touch line segment disposed on a different layer from the first signal lines, and the first touch line segment electrically connected with the second touch line segment through a first via.

Abstract: An array substrate, a method for determining an abnormal display thereof, a display panel, and a display device are provided. The array substrate includes: a source IC in a border area of the array substrate, wherein the source IC includes a reset pin and idle output pins; a reset unit in the border area of the array substrate, wherein the reset unit includes an output terminal and input terminals, the input terminals of the reset unit are electrically connected with the idle output pins of the source IC, and the output terminal of the reset unit is electrically connected with the reset pin of the source IC; and the reset unit is configured to determine whether the array substrate displays abnormally, and if so, to reset the source IC.

Abstract: A power supply device includes a power circuit, feedback circuit, compensation circuit, and PWM controller. The power circuit generates an output voltage based on a PWM signal. The feedback circuit outputs a feedback voltage. The compensation circuit compares a reference voltage with the feedback voltage and outputs a compensation signal based on a comparison result. The PWM controller adjusts the duty ratio of the PWM signal based on the compensation signal. The compensation circuit includes a comparator to compare the feedback voltage with the reference voltage, a first voltage adjuster to adjust a voltage level of a compensation voltage based on the comparison result, and a compensator output the compensation signal based on the voltage level of the compensation voltage. The compensation signal has a width in a high section that varies. The booster boosts the response speed of the compensator in a predetermined section based on a control signal.

Abstract: A display device includes a display panel including a plurality of pixels, first and second source boards connected to the display panel, and a control board. The control board is connected to the first source board via a first power cable and to the second source board via a second power cable. The control board is configured to control a power voltage provided to the pixels based on a first connection signal received from a first ground line of the first power cable and a second connection signal received from a second ground line of the second power cable.

Abstract: A short circuit detector includes a first transistor connected between a first portion of a data line and a second portion of the data line and including a gate electrode connected to a first node; a second transistor connected between a first voltage source and the first node and including a gate electrode configured to receive a short-circuit test signal; a third transistor connected between a second node included in the second portion and a third node and including a gate electrode configured to receive the short-circuit test signal; a fourth transistor connected between a second voltage source and the first node and including a gate electrode connected to the third node; and a fifth transistor connected to the first node and a third voltage source and including a gate electrode connected to the third node in common with the gate electrode of the third transistor.

Abstract: A tree-dimensional (3D) touch panel and a manufacturing method thereof, a touch drive device and method, and a display device are provided. The 3D touch panel includes a display backplate and a cover plate opposite to each other. The display backplate includes a display substrate, a plurality of first touch electrodes, first wirings, and a plurality of spacers. The cover plate includes a cover plate substrate, a plurality of second touch electrodes and second wirings formed on a surface of the cover plate substrate facing the display backplate, and a position touch layer formed on a surface of the cover plate substrate away from the display backplate. The position touch layer is configured to detect a touch position; and the first touch electrodes and the second touch electrodes correspond to each other in position and are both disposed at the spacers.

Abstract: A display device may include display pixels configured to emit light at a luminance corresponding to a data signal, at least one auxiliary pixel configured to store an auxiliary voltage, a gate driver configured to supply a gate signal to the display pixels and the auxiliary pixel, a data driver configured to convert image data into the data signal, and supply an auxiliary voltage having a preset level to the auxiliary pixel. A sensing circuit is configured to sense a change in the auxiliary pixel for each frame, and generate compensation voltage information. A timing controller is configured to convert an image signal into the image data, and generate a driving voltage control signal. A voltage generation unit is configured to generate a driving voltage corresponding to the driving voltage control signal, and generate the reference gamma voltage based on the driving voltage.

Abstract: Systems and methods for testing a light emitting display unit having a plurality of light emitting elements are disclosed. Embodiments include a system with a test module, the test module including a plurality of light detection elements. Each of the plurality of light detection elements may generate a signal upon detection of light emitted from a light emitting element. The test module may also include a circuit. The circuit may receive input signals from the plurality of light detection elements, process the input signals based on a pre-determined function of the circuit, and generate an aggregate output signal based on the processing of the input signals. The circuit may also process the input signals based on discrete implementation of a combinational logic. The circuit may further receive instructions determining the combinational logic to be implemented.

Abstract: The disclosure relates to the field of display devices and discloses a test fixture for a display device. The test fixture includes a fixing component, and a test component arranged detachably from the fixing component, wherein the fixing component includes a fixing component body, and a clamp arranged on the fixing component body to clamp the display device, and the test component is configured to be electrically connected with a circuit board of the display device.

Abstract: An imaging system includes an array of photodetectors that produce an array of intensity values. Image and display processing components of the imaging system produce an array of display-formatted pixels for display on an imaging system display. The display-formatted pixels include a first plurality of pixels associated with a color lookup table and a second plurality of pixels associated with a grey-scale lookup table. The image and display processing components compare pixel intensity values to temperature criteria and apply the color lookup table to pixels satisfying the temperature criteria and apply the grey-scale lookup table to pixels not satisfying the temperature criteria.

Abstract: The disclosure provides a method of acquiring an overdrive look-up table of a liquid crystal display. By measuring a plurality of chromaticities in the central area and the edge area of each of the test pictures respectively, a plurality of compliance data is found, and a median of the compliance data is taken as an overdriving value, and then an overdrive look-up table is generated according to the overdriving values acquired from the test, the method can automatically acquire the overdrive look-up table of LCD, thereby improving test efficiency and reducing test costs.

Abstract: A method for testing a display panel includes: applying a first level signal to a first sub-pixel and a third sub-pixel of a first pixel unit and applying a second level signal to a second sub-pixel of the first pixel unit; applying the second level signal to a first sub-pixel and a third sub-pixel of a second pixel unit and applying the first level signal to a second sub-pixel of the second pixel unit; and detecting a short circuit between adjacent sub-pixels. The first level signal has a voltage polarity opposite to a voltage polarity of the second level signal. Therefore, it is ensured that any two adjacent sub-pixels have opposite voltage polarities when the short circuit between adjacent sub-pixels of the display panel is detected. The method also provides improved testing abilities to detect an open circuit in a sub-pixel.

Abstract: A system for calibrating a liquid crystal display (LCD) includes a plurality of temperature sensors, a storage medium, and a controller. Each temperature sensor measures a current temperature of at least one pixel in the LCD. The storage medium stores information about latencies for any LC-based pixel, wherein each latency corresponds to a time period for transition from a starting to an ending illumination state for one temperature of the LC-based pixel. The controller determines, based on the current temperature, the transition information and frame information, a time for each pixel in at least a portion of the LCD to transition from a first to a second illumination state. The controller computes, based on transition times, an LC transition time for at least the portion of the LCD and performs calibration of at least the portion of the LCD based on the LC transition time.

Abstract: A display panel includes a plurality of touch blocks matrix-arranged and corresponding to each of two or more adjacent pixel areas of the plurality of pixel areas, and first, second, third and fourth test signal lines through which first, second, third and fourth test signals are supplied by an auto probing unit. Accordingly, not only a defect in an image output function, but also a defect in a touch sensing function can be inspected prior to a modularization process by using the first, second, third and fourth test signals.

Abstract: Embodiments of the present disclosure provide an organic electroluminescent display panel, an aging testing device and method, and a display device. A signal generator can simultaneously drive a plurality of parallel organic electroluminescent display panels to ensure the high efficiency of the aging test. In addition, during the aging test, the electrical coupling between the normal organic electroluminescent display panel and the signal generator can be maintained, and the electric coupling between the abnormal organic electroluminescent display panel and the signal generator can be disconnected. Thus, it is possible to prevent the abnormal organic electroluminescent display panel from affecting other normal organic electroluminescent display panels in parallel therewith, under the premise of ensuring the high efficiency of the aging test.

Abstract: The present invention provides a test circuit of gate driver on array (GOA) and a test method of GOA. The test circuit of GOA comprises a first wiring arranged outside the area where the plurality of display panels is located; a second wiring located between two of the adjacent regions; a switch unit arranged between the first wiring and the second wiring, wherein the area is divided into a plurality of areas where the display panel is located.