48results about How to "Improve afterimage phenomenon" patented technology

A display method including the following steps is provided. In a first frame, a first image is displayed by a plurality of first regions of a display area of a display apparatus, and a dark image is displayed by a plurality of second regions of the display area of the display apparatus at the same time. The display area has a plurality of pixels arranged as an array. Each first region and each second region respectively includes at least one of the pixels, and the first regions and the second regions are uniformly distributed in the display area, respectively. In a second frame immediately after the first frame, the dark image is displayed by the first regions, and a second image is displayed by the second regions at the same time. The first image and the second image construct a three-dimensional (3D) image.

The invention discloses a driving method, a driving device and a display device. The driving method is used for driving a display panel, and comprises the step of outputting a scan driving signal for each scan line in the display panel, wherein the scan driving signal comprises a plurality of frames of signals periodically distributed, each frame of signal comprises first voltage and second voltage, the first voltage is used for maintaining gating of each scan line in a first period, and is DC first high-level voltage; the second voltage is used for maintaining switching-off of each scan line in a second period, and is AC voltage, particularly, second low-level voltage and second high-level voltage output alternately; the first high-level voltage is larger than the second high-level voltage. According to the method and the devices provided by the invention, the second voltage for maintaining switching-off of each scan line is converted into the second low-level voltage and the second high-level voltage output alternately, so that the change of leakage current of a TFT in the display panel is effectively improved, image sticking phenomena in the display device are reduced, and the driving method is simple and easy to realize.

The invention provides a liquid crystal display device and a method for improving picture flash and image persistence. The device comprises a liquid crystal panel with N pixels, and a video controller capable of controlling display content of the liquid crystal panel; and the video controller displays a normal picture in modes that p is equal to n-m, p is equal to n+m and p is equal to n (n is more than m), and makes the normal picture reciprocate between p, n p and n pixels.

A voltage adjustment method and apparatus of a liquid crystal display (LCD) panel. The method comprises: acquiring initial reference voltage (RV) values of gamma voltage pairs corresponding to respective gray scales, which includes a first and a second gamma voltage; fixing the first gamma voltages, adjusting respectively the second gamma voltages in accordance with flicker values of the brightness of the LCD panel and the initial RV values of the second gamma voltages, and acquiring the adjusted voltage values of the second gamma voltages; and adjusting synchronously, with an equal proportion, the initial RV value of the first gamma voltage and the adjusted voltage value of the second gamma voltage corresponding to each gray scale respectively, so that the brightness corresponding to the gray scale is adjusted to be the same as the brightness corresponding to the same gray scale in the gamma standard voltage curve.

A driving method of a display unit includes: executing a first display procedure, for displaying a first frame on a display unit of the display driving circuit, and executing a counting mechanism; determining, if a second display procedure for displaying a second frame on the display unit is confirmed to be executed, whether or not a counting value of the counting mechanism is larger than a predetermined value; sequentially executing a specific display procedure and the second display procedure if the counting value is larger than the predetermined value; and directly executing the second display procedure if the counting value is equal to or smaller than the predetermined value. A display driving circuit applicable to be used by the display unit is also provided.

Embodiments of the present invention provide a display panel driving method, a driving device, and a display device. By taking the gray scale data in the current display screen, it is determined that the display brightness ratio of two adjacent pixels in the current display screen is greater than the preset ratio. The pixel is a boundary pixel, and the first driving mode is used to drive at least one boundary pixel in the display panel, so as to first write a data voltage corresponding to a grayscale value of 0 to the boundary pixel, and then write the display of the boundary pixel to the boundary pixel. The data voltage corresponding to the gray scale value makes the data voltage written in the boundary pixel switch between the data voltage corresponding to the 0 gray scale value and the data voltage corresponding to the displayed gray scale value. The implementation of the present invention can effectively improve the afterimage phenomenon caused by the hysteresis effect of the driving transistor when the display gray scale value is switched, and can improve the display effect of the display panel.

The invention discloses a pixel circuit, a driving method of the pixel circuit and a display panel. The pixel circuit comprises a data voltage write-in module, a driving transistor, a light emitting module, a storage module, a first transistor and an electric leakage compensation module. The data voltage write-in module is used for writing data voltage into the driving transistor. The first transistor is electrically connected with the grid electrode of the driving transistor, and the first transistor is a compensation transistor or a reset transistor. The storage module is electrically connected with the driving transistor and used for storing grid voltage of the driving transistor. The electric leakage compensation module is electrically connected with the grid electrode of the driving transistor for compensating the potential of the grid electrode of the driving transistor. The driving transistor is used for outputting a driving signal to drive the light-emitting module to emit light according to the gate voltage. When the voltage is written into the grid electrode of the driving transistor, the electric leakage compensation module performs electric leakage compensation on the grid electrode of the driving transistor, so that the residual time of a frame of ghost shadow on the display panel can be reduced, and the ghost shadow phenomenon of the display panel is improved.

The invention discloses a display device, a pixel circuit and a control method thereof. The circuit comprises: a reset charging module, which is used for charging a capacitance between a gate of a driving transistor connected across the pixel circuit and a positive electrode of a light-emitting diode. After resetting, the capacitor is charged; a writing module is used to write a data signal to the gate of the driving transistor; a driving module includes the driving transistor and is used to receive the data signal at the driving transistor When driving the light emitting diode to emit light; wherein, the driving transistor used for driving the light emitting diode to emit light adopts oxide TFT, and other transistors in the pixel circuit adopt LTPS TFT. The invention can improve the hysteresis characteristic of the pixel circuit and reduce the leakage current, thereby improving the problem of afterimage and low contrast of the display screen.

Embodiments of the present invention provide a display panel, a driving method thereof, and a display device, relating to the field of display technology, capable of making charging more sufficient, weakening the difference between the brightness of the first frame and other frames, and effectively improving the afterimage phenomenon. The above display panel includes: n pixel groups, each pixel group includes 2m pixel rows arranged along the first direction, n and m are positive integers greater than or equal to 1; each pixel row includes multiple pixel rows arranged along the second direction A pixel circuit; the pixel circuit includes: a driving transistor; a first reset module, configured to transmit the first reset signal provided by the first reset signal line to the gate of the driving transistor in response to the first scanning signal provided by the first scanning signal line , the first reset signal includes alternating high level and low level; the second reset module is used to respond to the second scan signal provided by the second scan signal line, and transmit the second reset signal provided by the second reset signal line to the organic The anode of the light-emitting element.