50results about How to "Fix uneven display" patented technology

The invention provides an organic light-emitting diode pixel driving circuit comprising a pixel capacitor used for storing the received voltage and coupling the change value of the voltage on a first pole to a second pole thereof, a first transistor used for providing a reference voltage for the first pole of the pixel capacitor under the control of a first light emitting signal, and a third transistor and a fourth transistor used for transferring a data voltage to the second pole of the pixel capacitor under the control of a second scanning signal. The problem that image display is non-uniform as the driving currents for driving different organic light-emitting diodes to emit light are different when the organic light-emitting diodes receive the same image data voltage due to the threshold voltage drift of a driving transistor and the voltage drop of a high-level power source is overcome.

The invention discloses an organic electroluminescence diode display panel which comprises m grid lines, n data lines, at least one compensation unit and a plurality of pixel circuit units, wherein the grid lines extend in a first direction; the data lines extend in a second direction; the pixel circuit units comprise first transistors and light emitting elements; the compensation units are used for acquiring and compensating threshold voltage of the first transistors; one compensation unit is connected with at least one pixel circuit unit through the data lines; one grid line is connected with at least one pixel circuit unit; the working procedures of the organic electroluminescence diode display panel comprise data writing procedures and the light emitting procedures; in the data writing procedure, the light emitting elements of the pixel circuit units connected with the m grid lines are powered off; in the light emitting procedure, the light emitting elements are powered on simultaneously. By adopting the organic electroluminescence diode display panel disclosed by the invention, requirements of VR display devices on display modes can be met, and the sensual experience can be improved.

The invention provides a pixel circuit and a driving method thereof, an OLED display panel and a display device. The pixel circuit comprises first to sixth transistors, a capacitor and an organic light emitting device, wherein the first transistor is used for providing a signal of a first voltage signal end to a first electrode of the second transistor, the third transistor is used for making a second electrode of the second transistor and an anode of the organic light emitting device realize conduction, the fourth transistor and the sixth transistor are used for storing a data signal of a data signal end and the threshold voltage of the second transistor to the capacitor to compensate the threshold voltage of the second transistor, and the second transistor is used for generating the driving current according to the data signal to drive the organic light emitting device to emit light. Through mutual cooperation of the transistors and the capacitor, the threshold voltage of the secondtransistor is compensated, the display effect of the whole frame is improved, the quantity of the utilized transistors is further reduced, and high-resolution display is facilitated.

The invention provides a curved liquid crystal display, comprising a liquid crystal display panel and a metal wire grid polarizer stacked on the liquid crystal display panel, the liquid crystal display panel includes a display surface, and the display surface includes a first display area and a first display area. A second display area connected to the first display area, the arc of the first display area is greater than the arc of the second display area; the surface of the metal wire grid polarizer is provided with several parallel and spaced wire grids, The metal wire grid polarizer includes a first polarizing area corresponding to the first display area and a second polarizing area corresponding to the second display area, and the wire grid duty ratio of the first polarizing area is smaller than that of the first polarizing area. The duty cycle of the wire grid in the two polarizing regions, wherein the duty cycle of the wire grid is the ratio of the width of one wire grid to the distance between two adjacent wire grids.

The invention discloses an array substrate and a driving method thereof, a liquid crystal display device and a driving method thereof. The array substrate is provided with a plurality of scanning lines, a plurality of data lines and a plurality of pixel units, and a plurality of common lines and a plurality of Common electrode blocks, each common electrode block covers two adjacent pixel units at the same time, and the pixel electrodes in the first pixel unit are connected to two adjacent scanning lines and one data line through the first switching element and the second switching element , the control end of the first switching element is connected to one of the scanning lines, one of the conductive ends of the first switching element is connected to the other scanning line, and the other conductive end of the first switching element is connected to the control end of the second switching element, The two conductive ends of the second switching element are respectively connected to the pixel electrode and the data line, the pixel electrode in the second pixel unit is connected to the adjacent scanning line and the data line through the third switching element, and each common electrode block is connected to the adjacent scanning line and the data line through the fourth switch. The components are connected to adjacent scan lines and common lines.

The invention discloses a pixel circuit, a driving method thereof and a display panel. The pixel circuit comprises: a first transistor, a second transistor, a third transistor, a fourth transistor, a driving transistor, a first capacitor and an organic light-emitting element; The control terminal of the transistor is electrically connected to the scanning signal input terminal of the pixel circuit; the first pole of the first capacitor is electrically connected to the control signal input terminal of the pixel circuit, and the second pole of the first capacitor is electrically connected to the control terminal of the driving transistor; The control end of the second transistor is electrically connected to the scanning signal input end; the control end of the third transistor is electrically connected to the light emission control signal input end of the pixel circuit; the first end of the fourth transistor is electrically connected to the second end of the driving transistor, and the fourth The second end of the transistor is electrically connected to the anode of the light-emitting element. The pixel circuit can reduce the number of transistors and signal lines, thereby reducing the area of ​​the pixel circuit, which is beneficial to wiring and improves pixel density.