The invention provides a digital driving method for OLED display device, by using a 3T1C pixel driving circuit comprising a first TFT, a second TFT, a third TFT, a capacitor, and an OLED to drive each sub-pixel, and by dividing a frame of OLED display device into a plurality of unequal-length sub-frames and equal-length sub-frames, and by changing the time gap between the first TFT charging and the third TFT discharging to control the illuminating time of each equal-length sub-frame. By combining the unequal-length and equal-length sub-frames, compared to the unequal-length sub-frame driving only in prior arts, the method can effectively reduce required hardware specification, improve luminance of OLED display device, and ensure the display quality of the OLED display device.

A controller includes a frame memory configured to store an image frame, a frame memory controller coupled to the frame memory and configured to obtain image data from the image frame. The image data is associated with a color component of the image frame. The controller also includes a dither noise mask generator configured to provide dither noise masks according to dither noise levels for the image data, and a bit plane generator coupled to the frame memory controller and the dither noise mask generator and configured to generate bit planes based on the dither noise masks for the image data.

A novel method for driving a digital display having a plurality of pixel rows includes receiving a frame of data to be written to the display in a predetermined frame time, dividing the frame time into a plurality of time intervals, defining a plurality of row groups, and defining a unique sequence for each row group to display corresponding multi-bit data words and a number of off states on the pixels of the rows of the row groups. The drive sequence of each row is offset with respect to an initial row by a unique predetermined number of off states. The predetermined numbers of off states ensure that the pixel updates of the groups do not overlap.

A display apparatus includes a timing controller and a display panel, in which the timing controller generates first output image data based on first input image data corresponding to a first frame set, the display panel includes a plurality of pixels and displays a first output image based on the first output image data during the first frame set, and the first frame set includes a first frame and a second frame, where the duration of the second frame is different from the duration of the first frame.

An organic light emitting display and a driving method of the organic light emitting display capable of reducing or minimizing power consumption. The driving method includes setting a number of selection times constituting one frame, and setting a number of unit times constituting the one frame. Each of the unit times includes j (j is a natural number of 2 or more) of the selection times. Scan signals are non-sequentially supplied to scan lines during each of the unit times. The one frame includes a number of subframes. Data signals for ones of the subframes having a same length are supplied corresponding to i (i is a natural number of 2 or more) consecutive ones of the scan signals.

The inventors found out that in the case of performing a low gray scale display in which a very small amount of current is supplied to a light emitting element, variations in threshold voltages of driving transistors become notable since the gate-source voltage is low. In view of this, the invention provides a display device in which variations in the threshold voltages of the driving transistors are reduced even in the low gray scale display, and a driving method thereof. According to the invention, a gate-source voltage of the driving transistor is set higher in the low gray scale display than that in the high gray scale display. As one mode to achieve this, different power source lines are provided for the low gray scale display and the high gray scale display and their potentials are set to be different.

A display device that achieves both high detection sensitivity of the touch sensor unit and smooth input on the touch sensor unit is provided. A method for driving a display device includes a first period and a second period. The display device includes pixels, a gate driver, and a touch sensor unit. The touch sensor unit detects a touch in the first period and stops detecting a touch in the second period. The gate driver supplies signals to some of the pixels and does not supply signals to the other pixels in the second period.

A display apparatus includes a plurality of light modulation elements configured to modulate light from a light source for each color, and a driver configured to drive the plurality of light modulation elements using drive signals in accordance with a digital drive method. The driver makes different from one another start timings of the drive signals corresponding to one frame period for the plurality of light modulation elements.

A method for generating a drive signal for driving a light emitting element of a display. The method includes: dividing the M bits into MN1+1 data ranges, each including N1 consecutive bits of the M bits; determining N2 bits for uniquely identifying the MN1+1 data ranges; generating a coded signal of N1+N2 bits for representing the M bits of the input signal; based on the coded signal, generating the drive signal comprising a sequence of N1 bits, each bit of said sequence of N1 bits controlling a current through the light emitting element or a voltage across the light emitting element, during a time interval, one bit at a time.

A system, includes a controller configured to obtain, for an image frame stored in a frame memory image, data associated with a color component and generate dithered bit planes having a dither noise pattern, the dithered bit planes including time repeated bit plane sequences in the image frame. The system also includes a spatial light modulator (SLM) coupled to the controller. The SLM is configured to project an image of the image frame according to the dithered bit planes. Additionally, the system includes a light source optically coupled to the SLM. The light source is configured to provide light for projecting the image.