G09G2310/02

Methods for driving bistable electro-optic displays, and apparatus for use therein

A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.

Method and apparatus for pixel drive control, display panel and storage medium

Embodiments of the present disclosure provide a method and apparatus for pixel drive control, a display panel and a storage medium. The method includes generating a drive control signal based on display data of target columns of sub-pixels and corresponding target display brightnesses. The drive control signal includes sub-drive control signals having at least two duty cycles. The method includes controlling a pixel drive circuit to output a corresponding pixel drive signal based on the drive control signal. The pixel drive signal includes sub-drive signals having at least two duty cycles corresponding to respective sub-drive control signals. Embodiments of the present disclosure enables different rows of sub-pixels to be driven by signals having different duty cycles, thereby achieving adjustment of charging time for different rows of sub-pixels, to reduce charging difference for rows of sub-pixels and enable their display brightnesses to become uniform.

Display device and global dimming control method thereof
11862105 · 2024-01-02 · ·

A display device comprises: a display panel including a first display area comprising a first pixels, and a second display area comprising a second pixels, each pixel including a light emitting element; a data driver circuit configured to output data voltages of an image to the first and second pixels; a gate driver configured to output scan signals to the first and second pixels; and a power supply configured to generate a low-potential power supply voltage that is applied to the light emitting element included in each pixel, the low-potential power supply voltage switching between a first level such that the light emitting element is capable of emitting light, and a second level such that the light emitting element cannot emit light, wherein a frame period of the display device includes an addressing period during which the low-potential power supply voltage switches from the second level to the first level.

DRIVING DEVICE, DRIVING METHOD OF DISPLAY PANEL, AND DISPLAY APPARATUS
20210005153 · 2021-01-07 ·

Disclosed are a driving device, a driving method and a display apparatus of a display panel, the display array of which has two kinds of gate driving lines for sub-pixels in the same row. The pixels in the odd-numbered column has a different gate driving signals with those in the even-numbered column. The driving time sequence of the main gate driving signals is the original gates driving time sequence corresponding to the low voltage subpixels in the row direction, and the driving time sequence of the sub-gate driving signals is the gate driving time sequence and the source driving time sequence corresponding to the previous high voltage subpixels that is adjacent to the low voltage subpixels. As such, the charging capability is different of sub-pixels on two adjacent rows of gate driving lines for the same drive voltage.

Display apparatus and method of driving atypical display panel using the same
10847080 · 2020-11-24 · ·

A display apparatus includes a display panel configured to display an image. A gate driver is configured to output a plurality of gate signals to the display panel. A data driver includes a first area and a second area. The first area of the data driver includes a first channel group configured to output first data voltages in a first output sequence. The second area of the data driver includes a second channel group configured to output second data voltages in a second output sequence opposite to the first output sequence.

DISPLAY MODULE, DISPLAY DEVICE, AND THE DRIVING METHOD THEREOF

A display module including display pixels, driving circuit and first switches is provided. The display pixels are arranged in columns and rows in the display area, and every display pixel includes sub-pixels. The display pixels form pixel rows along the first direction, and the sub-pixels of the display pixels form sub-pixel columns along the second direction. The color of the light emitting from the sub-pixels of the same sub-pixel column are substantially the same. The first direction and the second direction are substantially perpendicular. The driving circuit includes signal connectors, and every signal connector connects one of the pixel rows. The first switch is connected between a power source and one of the pixel rows, transmitting driving signal. The first switch is controlled by the driving circuit. A display device and a driving method are also provided.

Proximity-detection method for electronic device

A proximity-detection method, a non-transitory computer readable medium and an electronic device are disclosed. The proximity-detection method is applied to the electronic device. The electronic device may include a display screen and an infrared-light proximity sensor covered by the display screen and configured to detect whether an object is proximity to the electronic device, the display screen has a capability of allowing infrared lights to pass through. The proximity-detection method may include setting an operation timing of the display screen as a target timing when the infrared-light proximity sensor is enabled, wherein the target timing comprises a target duration and the display screen is controlled to emit no lights during the target timing; controlling the infrared-light proximity sensor to emit the infrared lights during the target duration; and performing proximity detection based on the infrared lights.

Driving method and driving device for display panel, and display device
10777152 · 2020-09-15 · ·

In the method and device of driving display panel, and display device provided in the embodiment of the present disclosure, the display panel is divided into n sub-regions, and an average gray scale value of original pixel cells in each sub-region is determined, a gray scale threshold value range corresponding to the sub-region is determined according to the average gray scale value of the sub-region when the average gray scale value is greater than a preset gray scale threshold value, a ratio of the total number of original pixel cells in the gray scale threshold value range to the total number of original pixel cells contained in the corresponding sub-region is determined, and gamma value of original pixel cell in the corresponding sub-region according to the ratio and a preset gamma value conversion relationship is reset.

DISPLAY DEVICE AND A METHOD FOR DRIVING THE SAME
20200265778 · 2020-08-20 ·

A display device including: an image determiner configured to determine whether a still image is displayed by comparing first partial image data that is a portion of image data of a previous frame with second partial image data that is a portion of image data of a current frame at a first time of a first mode in which a non-moving image is displayed, and determine whether the still image is displayed by comparing first frame data that is all image data of a previous frame with second frame data that is all image data of a current frame at a second time of a second mode in which a moving image is displayed; a display panel including pixels that receive a data signal corresponding to image data; and a panel driver configured to change a frequency at which the pixels are driven according to the first and second modes.

METHOD AND APPARATUS FOR PIXEL DRIVE CONTROL, DISPLAY PANEL AND STORAGE MEDIUM
20200168174 · 2020-05-28 ·

Embodiments of the present disclosure provide a method and apparatus for pixel drive control, a display panel and a storage medium. The method includes generating a drive control signal based on display data of target columns of sub-pixels and corresponding target display brightnesses. The drive control signal includes sub-drive control signals having at least two duty cycles. The method includes controlling a pixel drive circuit to output a corresponding pixel drive signal based on the drive control signal. The pixel drive signal includes sub-drive signals having at least two duty cycles corresponding to respective sub-drive control signals. Embodiments of the present disclosure enables different rows of sub-pixels to be driven by signals having different duty cycles, thereby achieving adjustment of charging time for different rows of sub-pixels, to reduce charging difference for rows of sub-pixels and enable their display brightnesses to become uniform.