Abstract: A voltage regulator includes an error amplification circuit, a voltage detection circuit, a loop current prevention circuit, a voltage regulation circuit, and a stable voltage output terminal; the voltage regulation circuit outputs a voltage of the second power supply to the stable voltage output terminal when receiving a first control signal and second control signal output by the voltage detection circuit and stops outputting the voltage of the second power supply when receiving a third control signal and fourth control signal output by the voltage detection circuit; the loop current prevention circuit prevents a loop from being formed between the first power supply and the stable voltage output terminal when receiving the first control signal and the second control signal and controls the error amplification circuit to output an error amplification signal to the stable voltage output terminal when receiving the third control signal and the fourth control signal.

Abstract: Provided are a pixel circuit, a silicon-based display panel, and a display device. The pixel circuit includes a pixel drive circuit and a pixel compensation circuit; the pixel drive circuit includes a drive transistor and an organic light-emitting element; the drive transistor includes an output terminal and a body terminal, where the output terminal is connected to an anode of the organic light-emitting element, and a cathode of the organic light-emitting element is connected to a cathode signal input terminal and configured to receive a cathode potential inputted from the cathode signal input terminal, the cathode potential being fixed; the body terminal is connected to the pixel compensation circuit at a first node, and a potential of the first node is a body potential; and the cathode potential Vcom, a crossover voltage Voled of the organic light-emitting element, and the body potential Vbody satisfy that Vcom+Voled>Vbody.

Abstract: Provided are a pixel circuit, a silicon-based display panel, and a display device. The pixel circuit includes a pixel drive circuit and a pixel compensation circuit; the pixel drive circuit includes a drive transistor and an organic light-emitting element; the drive transistor includes an output terminal and a body terminal, where the output terminal is connected to an anode of the organic light-emitting element, and the body terminal is connected to a body signal input terminal and configured to receive a body potential inputted from the body signal input terminal, the body potential being fixed; and a cathode of the organic light-emitting element is connected to the pixel compensation circuit at a first node, a potential of the first node is a cathode potential, and the cathode potential Vcom, a crossover voltage Voled of the organic light-emitting element, and the body potential Vbody satisfy that Vcom+Voled>Vbody.

Abstract: A display apparatus includes a substrate, a plurality of pixelated first electrodes disposed on the substrate, an uneven surface structure or a porous structure disposed between adjacent pixelated first electrodes, a plurality of OLED lighting elements disposed on the pixelated first electrodes and the uneven surface structure or the porous structure, a second electrode layer disposed on the OLED lighting elements. Equivalent transport distance of carriers along the uneven or porous surface increases accordingly, thereby resulting in reduced lateral leakage current between adjacent pixelated first electrodes.

Abstract: A display panel includes: a substrate; a first electrode layer disposed on one side of the substrate; a pixel definition layer with a plurality of opening structures disposed on one side of the first electrode layer facing away from the substrate, where the opening structure exposes part of first electrodes. The barrier control gate is then disposed on the pixel definition layer. The first-type carrier layer, then is the light-emitting layer, the second-type carrier layer, and finally the second electrode layer, are sequentially deposit on the display panel as formed above.

Abstract: A voltage regulator includes an error amplification circuit, a voltage detection circuit, a loop current prevention circuit, a voltage regulation circuit, and a stable voltage output terminal; the voltage regulation circuit outputs a voltage of the second power supply to the stable voltage output terminal when receiving a first control signal and second control signal output by the voltage detection circuit and stops outputting the voltage of the second power supply when receiving a third control signal and fourth control signal output by the voltage detection circuit; the loop current prevention circuit prevents a loop from being formed between the first power supply and the stable voltage output terminal when receiving the first control signal and the second control signal and controls the error amplification circuit to output an error amplification signal to the stable voltage output terminal when receiving the third control signal and the fourth control signal.

Abstract: The present disclosure relates to a pixel circuit and a display device. The pixel circuit includes: a pixel unit including: an operation current generating module including a gate voltage terminal and a drain voltage terminal and adapted to generate an operation current based on a voltage at the gate voltage terminal; and a light-emitting control module connected in series with the operation current generating module and adapted to control whether or not to provide the operation current to a light-emitting device based on a light-emitting control signal; and a driving control circuit, including: a feedback module for receiving a first input voltage and a data current and adapted to provide a feedback loop between the gate voltage terminal and the drain voltage terminal; and a data current module adapted to provide the data current.

Abstract: A pixel driving circuit includes a driving transistor connected in series between a first power supply voltage terminal and a second power supply voltage terminal. The driving transistor has a control terminal electrically connected to a first node, a first terminal electrically connected to a second node, and a second terminal electrically connected to a third node. The second node is located between the first power supply voltage terminal and the driving transistor. The third node is located between the second power supply voltage terminal and the driving transistor. A light-emitting element is connected in series between the third node and the second power supply voltage terminal. A voltage maintaining module is configured to maintain a voltage of the third node unchanged.

Abstract: A pixel structure, a method for forming the pixel structure, and a display screen are provided. The method includes: providing a substrate for forming an OLED device, the substrate having a first pixel area, a second pixel area, and a third pixel area; and forming a compensation layer on the substrate, the compensation layer having different thicknesses in the first pixel area, the second pixel area, and the third pixel area. In the present disclosure, the compensation layer is formed on the substrate, and the compensation layer has different thicknesses respectively in the first pixel area, the second pixel area and the third pixel area, so that the cavity of the first pixel area, the cavity of the second pixel area, and the cavity of the third pixel area can be individually controlled.

Abstract: A display panel is provided. The display panel includes sub-pixels arranged in an array, pixel driving circuits corresponding to sub-pixels in each column being connected through at least one data line. One data driving process for the sub-pixels includes: a first phase in which a data signal transmission circuit writes a data signal for an n-th row into a data signal storage circuit, and a second phase in which a data signal writing circuit receives the data signal output by the data signal storage circuit and writes the data signal into pixel driving circuits corresponding to sub-pixels in the n-th row, and the second phase of the data driving process for the n-th row is reused as the first phase of the data driving process for a (n+1)-th row, where n is a positive integer.

Abstract: Provided is a pixel compensation circuit, which includes a signal amplification circuit, a signal storage circuit, a comparison calculation circuit and a signal compensation circuit. The signal amplification circuit collects an anode potential of an organic light emitting element and a driving current, such that the signal storage circuit can determine a threshold voltage of the driving transistor and a preset gray-scale voltage based on the anode potential and the driving current. The comparison calculation circuit calculates a compensation voltage required for the pixel while actually operating based on the threshold voltage, the anode potential and the preset gray-scale voltage. Thus, when a display gray-scale voltage is inputted, it can be compensated using the compensation voltage and then outputted to a gate of the driving transistor, such that the driving transistor can drive the organic light emitting element to emit light.

Abstract: The present disclosure provides a display panel. The display panel includes a short circuit protection circuit, a pixel driving circuit, and an organic light-emitting element. The short circuit protection circuit includes a detection circuit electrically connected to the organic light-emitting element, and a control circuit electrically connected to the detection circuit and the pixel driving circuit. The detection circuit is configured to detect whether the organic light-emitting element is short-circuited. The control circuit is configured to control, in response to a detection result of the detection circuit, whether the pixel driving circuit performs driving. In the present disclosure, the display panel includes a plurality of pixel units arranged in rows and columns. This prevents the pixel driving circuit from burning the organic light-emitting element that is short-circuited or other adjacent organic light-emitting element.

Abstract: Provided are a display panel and a display device. The display panel includes a substrate, light-emitting units, a first organic layer, and light extraction structures located between the light-emitting units and the first organic layer. The first light extraction layer has a first central axis and is symmetrical about the first central axis, the second light extraction layer has a second central axis and is symmetrical about the second central axis, and the first central axis and the second central axis are perpendicular to the substrate. A surface of the second light extraction layer connecting the first light extraction layer is a first surface, a surface of the second light extraction layer facing away from the first light extraction layer is a second surface, and at least one of the first surface and the second surface comprises straight lines in a cross-section perpendicular to the substrate.

Abstract: Provided is an interpolation operational amplifier circuit, including: at least two sets of differential input pair transistors, each differential input pair transistor including first and second transistors, wherein base terminals of the first and second transistors are electrically connected to serve as a base terminal of the differential input pair transistor, and source electrodes of the first and second transistors are electrically connected to serve as a source electrode of the differential input pair transistor; and a voltage control unit electrically connected to the base terminal and source electrode of the differential input pair transistor, and configured to control a voltage of the base terminal of the P-type differential input pair transistor to be smaller than the first power supply voltage, and/or to control a voltage of the base terminal of the N-type differential input pair transistor to be larger than the second power supply voltage.

Abstract: A organic light-emitting diode (OLED) on Silicon product includes a circuit board, a central control board and an OLED on Silicon display panel located on the circuit board. A core control module and a timing control module are integrated in the central control board. The OLED on Silicon display panel has a display region, a gate row driving region, a source signal driving region, and a bonding region. OLED display pixels are provided in the display region. A gate row driving circuit is integrated in the gate row driving region. A source signal driving circuit is integrated in the source signal driving region. The bonding region is a region where the OLED on Silicon display panel is bound to the central control board. The OLED on Silicon product simplifies the processing process, reduces the cost and overall size of the product, and increases the area proportion of the display region.

Abstract: A shadow mask used for OLED evaporation and a manufacturing method therefor, and an OLED panel manufacturing method. The shadow mask used for OLED evaporation includes: a semiconductor substrate including a front surface and a back surface opposite thereto, a recess penetrating the front surface and the back surface being provided in the semiconductor substrate; and a grid film layer provided on the front surface of the semiconductor substrate. A number of openings arranged in an array are provided in the grid film layer. Each of the openings has an upper portion and a lower portion. A width of the upper portion is greater than a width of the lower portion. The recess exposes the number of openings in the grid film layer and the grid film layer between adjacent openings.

Abstract: Provided is a pixel compensation circuit, which includes a signal amplification circuit, a signal storage circuit, a comparison calculation circuit and a signal compensation circuit. The signal amplification circuit collects an anode potential of an organic light emitting element and a driving current, such that the signal storage circuit can determine a threshold voltage of the driving transistor and a preset gray-scale voltage based on the anode potential and the driving current. The comparison calculation circuit calculates a compensation voltage required for the pixel while actually operating based on the threshold voltage, the anode potential and the preset gray-scale voltage. Thus, when a display gray-scale voltage is inputted, it can be compensated using the compensation voltage and then outputted to a gate of the driving transistor, such that the driving transistor can drive the organic light emitting element to emit light.

Abstract: The present disclosure provides a virtual reality display device including an OLED display panel and an optical system. The optical system is disposed between the OLED display panel and a user viewing side. The optical system includes a first linear polarizing sheet disposed between the OLED display panel and the user viewing side, a first reflective-transmissive optical film disposed between the first linear polarizing sheet and the OLED display panel, and a first quarter-wave plate disposed between the first reflective-transmissive optical film and the OLED display panel.

Abstract: A pixel circuit and a display device are provided. The pixel circuit includes a pixel unit which includes an operating current generating module and a light emission control module. The operating current generating module has a gate voltage terminal and is configured to generate an operating current according to a voltage of the gate voltage terminal. The light emission control module is connected in series with the operating current generating module and configured to control whether to provide the operating current to a light emitting device according to a light emission control signal. The driving control circuit includes: a data current module, configured to provide a data current and to input the data current to the gate voltage terminal; and a current adjusting module, configured to control whether to input a compensation current to the gate voltage terminal according to a current value of the operating current.

Abstract: The present disclosure provides a driving system. The driving system includes: a voltage generating circuit configured to generate (2m+k+1) initial grayscale voltages; a ramp voltage curve generating circuit configured to generate (2m+1) ramp voltage curves by using the (2m+k+1) initial grayscale voltages based on k-bit data of received pixel data, each ramp voltage curve of the (2m+1) ramp voltage curves including 2k step voltages; a source driving circuit configured to generate additional 2n ramp voltage curves by using any two adjacent ramp voltage curves of the (2m+1) ramp voltage curves based on m-bit data of the received pixel data; and an output control circuit configured to select a grayscale voltage of the ramp voltage curves based on the received pixel data and send the selected grayscale voltage to the data signal input terminals of the pixel circuit.