The invention provides a GOA circuit for LTPS-TFT, using a resistor (R1) and a tenth TFT (T10) to replace the second capacitor in known technology, and change the diode-style connection of the ninth TFT (T9) in known technology to connect one end of the resistor (R1) to the constant high voltage (VGH) and the other to the gate of the ninth TFT (T9) so that during the output end (G(n)) staying at low, the voltage of the second node (P(n)) follows the (M+1)-th clock signal (CK(M+1)) to switch between high and low, that is, following a fixed frequency to pull down the voltage of the second node (P(n)), prevents the second node from staying at high for long duration and prevents the sixth TFT (T6) and the seventh TFT (T7) from prolonged operation to cause threshold voltage shift and improve GOA circuit stability.

The present invention provides an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit utilizes the 5T1C structure and comprises a first, a second, a third, a fourth and a fifth thin film transistors (M1, M2, M3, M4 and M5), a capacitor (C1) and an organic light emitting diode (D1). The AMOLED pixel driving circuit directly acquires a threshold voltage of the fourth thin film transistor (M4), i.e. the drive thin film transistor to implement threshold voltage compensation; by inputting the data signal (Data) to the source of the fourth thin film transistor (M4), i.e. the drive thin film transistor, the circuit reads the data signal (Data) at the same time while acquiring the threshold voltage of the drive thin film transistor to promote the working efficiency of the circuit; by setting one end of the capacitor (C1) to be coupled to a gate of the fourth thin film transistor (M4), i.e. the drive thin film transistor, and the other end to be coupled to the earth (GND), the signal input of the capacitor end can be reduced to simplify the required input signal.

An organic light emitting display device includes: pixels at crossing regions of scan lines and data lines; i (i is a natural number of 2 or more) blocks divided such that each of the blocks includes two or more scan lines; a control driver configured to supply a first control signal to i first control lines coupled, respectively, to the i blocks, and to supply a second control signal to i second control lines coupled, respectively, to the i blocks; a scan driver configured to supply a scan signal to the scan lines; and a data driver configured to supply a data signal to the data lines, wherein the scan driver is configured to supply the scan signals on a block-by-block basis, a sequence of supplying the scan signals being supplied alternately in a first direction and a second direction that is different from the first direction.

The present disclosure provides a gate driving circuit comprising multiple stages of cascaded shift registers, each stage of shift register comprising an input subcircuit, a first reset subcircuit, a second reset subcircuit, an energy storage subcircuit, an output subcircuit and a pull-down node potential generation subcircuit, wherein at least two stages of shift registers share a pull-down node potential generation subcircuit. The present disclosure further provides a display panel comprising the gate driving circuit, and a method for driving the gate driving circuit.

A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24), and an auxiliary capacitor (25) of which one terminal is connected to a source node of the drive transistor (22); and a control unit (90) that provides a potential change to a source electrode of the drive transistor (22) by coupling through the auxiliary capacitor (25) to set an operation point of the drive transistor (22) as a cut-off region after the threshold value correction process.

A scan driver may include a first stage, a second stage, and a third stage. The first stage may include a first output transistor. The first output transistor may have a first buffer value. The second stage may be electrically connected to the first output transistor and may include a second output transistor. The second output transistor may have a second buffer value. The third stage may be electrically connected to the second output transistor and may include a third output transistor. The third output transistor may have a third buffer value. At least one of the second buffer value and the third buffer value may be unequal to the first buffer value.

An image drawing device includes a laser light source controller controlling a laser light output timing of a laser light source unit and an output value of laser light so that a drawing image based on input image data is generated in a scanning region; a scanner controller controlling scanning so that the laser light is scanned with an amplitude; and a characteristic detection controller controlling the scanner controller to scan in a range in which an amplitude of scanning exceeds a scanning range corresponding to an amplitude when the laser light output value is adjusted, control the laser light source controller to output characteristic detection laser light during scanning outside of a range in which the drawing image is generated and beyond the amplitude of the scanning range, and adjust the output value of the laser light based on a detected output value of the characteristic detection laser light.

A driving method for a display panel is disclosed. The display panel includes a plurality of gate lines. The driving method includes: driving the plurality of gate lines in a first preset sequence and a second preset sequence by turns, wherein the first preset sequence is defined from the first of the plurality of gate lines to the last of the plurality of gate lines, the second preset sequence is defined from the last of the plurality of gate lines to the first of the plurality of gate lines, and driving periods of each two adjacent gate lines partially overlap; and adjusting a voltage difference, between a high-voltage level and a low-voltage level, of each gate pulse provided to the gate lines when the gate lines are driven either in the first sequence or in the second sequence.

An organic light emitting display includes: a data driver configured to supply a data signal to data lines, corresponding to a data enable signal during a driving period in which an image is displayed; and a timing controller configured to supply data and the data enable signal to the data driver, wherein a first data enable signal having a first period and a second data enable signal having a second period differing from the first period are included in the data enable signal supplied during one frame period.

The present application discloses a gate driver control circuit including an encoder configured to encode instruction information to obtain a coded instruction and to transmit the coded instruction. The gate driver control circuit further includes a decoder coupled to the encoder and configured to decode the coded instruction to obtain the instruction information. Additionally, the gate driver circuit includes at least one multiplexer coupled to the decoder. Each multiplexer is configured to receive a first set of multiple timing-control signals and the instruction information, to adjust the first set of multiple timing-control signals to a second set of multiple timing-control signals based on the instruction information, and to output the second set of multiple timing-control signals. The gate driver control circuit further includes at least one gate-array sub-circuit. Each gate-array circuit is configured to output multiple row-scanning signals in response to the second set of multiple timing-control signals.