Embodiments disclosed herein provide systems and methods for testing and repairing various aspects of an electronic display. The electronic display includes a reference array and an active array. The electronic display also includes test circuitry used to test individual or any combination of pixels of the electronic display. Switches may be disposed between the pixels and the test circuitry to be to repair the various components of the electronic display.

A timing controller, a clock reset method, and a display panel are provided. When an abnormal working condition occurs in a transition stage of recovering a reset control signal from a jumping state to an initial state, the problem that a clock of the timing controller cannot be synchronized can be avoided when a processing module cannot normally output a clock reset pulse signal and a clock data recovering module cannot normally recover the clock of the timing controller because the reset control signal is in the jumping state. Reliability of the timing controller is increased.

An array checker (AC) is described. The array checker may include software configured to implement a method. By implementing the method, the array checker may detect a location of a defect and then compensate for a shift in the defect. In particular, the method may include generating one or more reference lines in a panel. The reference lines may include a location which is known prior to generating an image of the panel. The array checker may then capture an image of the panel. The image may be captured by voltage imaging. The image may include the defect and the one or more reference lines. The method may then include calculating an offset of the reference line from the known location. The offset may then be applied to the defect location for compensating the shift in the defect.

The liquid crystal display device includes: a control circuit (5) configured to perform input correction for a plurality of pixels (i1 to i12, j1 to j12, and k1 to k12) in each one of blocks (Bi1, Bj1, and Bk1) of a display unit (2), the input correction performed separately for each local area; a first source driver (4a) electrically connected to an end of each one of data signal lines (S1 to S24) that correspond to the pixels; and a second source driver (4b) electrically connected to another end of each data signal line (S1 to S24), wherein the first and second source drivers (4a and 4b) drive the data signal lines (S1 to S24) based on the input correction.

A light emitting display apparatus can include a first pixel and a second pixel. The first pixel can include a first light emitting device and a first pixel driving circuit configured to drive the first light emitting device. The second pixel can include a second light emitting device and a second pixel driving circuit configured to drive the second light emitting device. The light emitting display apparatus can further include a repair transistor connected between the first light emitting device and the second light emitting device, and a repair control transistor connected to a gate of the repair transistor.

A method of driving a display device including a sensing line, a light-emitting element, a capacitor, and a driving transistor, the driving transistor comprising a control terminal that is connected to the capacitor, an input terminal, and an output terminal, the method including: connecting the control terminal and the output terminal; connecting the control terminal and the output terminal to a ground voltage and then disconnecting the control terminal and the output terminal from the ground voltage; sensing a first voltage of the control terminal through the sensing line; and calculating a threshold voltage of the driving transistor based on the first voltage.

A display device is disclosed. In one aspect, the display device includes a display panel including a display area and a non-display area surrounding the display area. The display device also includes a plurality of active pixels formed in the display area extending in first and second directions as a matrix, a plurality of dummy pixels formed in the non-display area and extending in the second direction, a repair test line and one or more active pixel test lines formed in the non-display area and extending in the first direction, a plurality of scan lines electrically connected to the active pixels and the dummy pixels and extending in the first direction, a plurality of data lines electrically connected to the active pixels and extending in the second direction, and at least one dummy data line electrically connected to the dummy pixels and extending in the second direction.

A pixel comprising a light emitting unit comprising at least one light emitting element; a pixel circuit for supplying current to the light emitting in response to a data signal; a sensing transistor electrically connected between a data line and a first node that is a common node of the light emitting unit and the pixel circuit; and a control transistor electrically connected between a scanning line and a gate electrode of the sensing transistor.

The invention relates to this method comprising the following steps, for at least one input/output parameter: duplicating and inserting a list of graphical commands associated with said parameter within a calculation module of said chain, from a current value of said parameter, obtaining a current cyclic redundancy code associated with a current micropattern, generated by executing said at least one list, comparing said current cyclic redundancy code with a reference cyclic redundancy code stored in a dedicated memory space for a substantially identical value of said parameter within a tolerance threshold, in the event of a difference in cyclic redundancy code value, automatic sanctioning of said chain at least by suspending its execution.

A measurement circuit includes a plurality of measurement units, performs, at a same timing, a main measurement for measuring a current or a voltage with respect to a pixel circuit with supplying a measurement voltage to a part of the measurement units and a dummy measurement for measuring a current or a voltage with supplying a dummy signal to remaining measurement units, and performs a calculation on a result of the main measurement and a result of the dummy measurement. As the dummy signal, a signal with which a value to be measured is approximately zero is used. The measurement result of the current or the voltage is used for correcting a video signal. With this, a display device which can remove noise in measurement when measuring the current or the voltage with respect to the pixel circuit is provided.