2967 results about "Scan line" patented technology

The invention provides a display panel, a driving method thereof, a driving circuit and a display device.The display panel comprises a plurality of scanning lines, a plurality of data lines and pixel units arranged in an array mode, and each pixel unit comprises a pixel electrode, a storage capacitor, a first transistor, a comparison circuit and a switch logic circuit; the comparison circuit compares a signal input by a data line with a first reference voltage and outputs a comparison signal corresponding to high and low levels, and the switch logic circuit performs logic judgment and corresponding on-off on the level of the signal input by the scanning line and the comparison signal, so that the line scanning signal and the data signal are input to the first transistor; the data lines and the scanning lines are connected to control whether data signals of the pixel electrodes and the storage capacitors are written and refreshed or not, the pixel units can be controlled to maintain a current picture and switch a display picture by inputting data signals and line scanning signals of different sizes to the data lines and the scanning lines, independent control over the single pixel unit can be achieved, and the display requirements of different refresh rates are met.

The invention belongs to the technical field of display driving, and particularly relates to a display panel, a display driving method and a display device.The display panel comprises N rows of scanning lines, M columns of data lines and 2N rows * 2M columns of pixel circuits; each pixel circuit comprises a pixel unit and a control unit, and when the nth row of scanning line outputs a first scanning signal, a data signal on the mth row of data line controls any one of the control units in the (2m-1) th row and the (2n-1) th row and the control units in the (2m) th row and the (2n-1) th row to be switched on or switched on alternately in a time-sharing manner; when the nth scanning line outputs a second scanning signal, the data signal on the mth data line controls any one of the (2m-1) th and 2nth control units and the 2m and 2nth control units to be switched on or switched on alternately in a time-sharing manner; according to the display panel, the number of the scanning lines and the number of the data lines are reduced by at least half under the display condition of the same resolution, the power consumption and the cost of the panel are reduced, and the refresh rate and the aperture opening rate are improved.

The invention belongs to the technical field of display driving, and particularly relates to a driving circuit repairing device and a display panel, and the repairing device comprises a first repairing line which is arranged between a first gate driving circuit and a display area; the second repairing line is arranged between the second gate driving circuit and the display area; the third repairing line is arranged between the first repairing line and the display area; and the signal repairing circuit is used for repairing the driving signal introduced on the first repairing line when the nth GOA unit of the second gate driving circuit is abnormal, so that the repaired driving signal drives the nth scanning line on the second side of the display area through the second repairing line, meanwhile, the nth scanning line on the first side of the display area is driven through the third repairing line; according to the invention, the consistency of the repairing signal is ensured while the abnormal GOA unit is repaired, and the repairing precision is improved.

The invention discloses a display panel and a driving method thereof, the display panel comprises a plurality of first switches and a plurality of second switches, N columns of pixels are arranged in a first display area, and M columns of pixels are arranged in a second display area; the first scanning line is connected with N columns of pixels in the first display area and M columns of pixels in the second display area, the second scanning line is connected with the N columns of pixels in the first display area, and each first switch is connected with two data lines corresponding to sub-pixels with the same color in the first display area and the second display area; each second switch is connected with a data driving chip and a data line corresponding to a pixel in the first display area; wherein N and M are natural numbers greater than or equal to 2. The two data lines corresponding to the sub-pixels with the same color in the first display area and the second display area respectively receive the same data signal or different data signals to realize display in different display modes by switching on or switching off the first switch and the second switch, so that insufficient charging under a high refresh rate is improved.

The invention relates to the technical field of cholesteric liquid crystal electronic paper display, and discloses a cholesteric liquid crystal electronic paper display panel and a driving method thereof, and the cholesteric liquid crystal electronic paper display panel comprises an upper substrate, a lower substrate, a grid scanning line and a signal line, the electrode strip blocks continuously extend in the direction of a grid scanning line, each electrode strip block corresponds to one row of pixels, a single pixel corresponds to one pixel electrode, the electrode strip block corresponding to each row of pixels is conducted with the ITO electrode in the corresponding row through a conductive spacer, the ITO electrode is located on the periphery of a display area of the display panel, and in the direction of a signal line, the ITO electrode is connected with the electrode strip block in the corresponding row. The size of a single pixel is larger than the width L of each electrode strip block and larger than or equal to the width L'of a pixel electrode, and the distance S between every two adjacent electrode strip blocks is larger than or equal to the width W of a grid scanning line. According to the display panel and the driving method thereof, by optimizing the common electrode structure and the driving time sequence, the display performance and the refreshing efficiency of cholesteric liquid crystal electronic paper are remarkably improved.

A display device includes a display panel having a display area and a non-display area. The display panel includes a pixel disposed in the display area and including a light emitting element and a pixel driving circuit electrically connected with the light emitting element, a sensor disposed in the display area and including a photo sensing element and a sensor driving circuit electrically connected with the photo sensing element, a data line electrically connected with the pixel and extended along a first direction, a scan line electrically connected with the pixel and extended along a second direction intersecting the first direction, and a readout line including a first readout portion in the display area. The first readout portion is electrically connected with the sensor and extended along the second direction in the display area.

The invention discloses a transparent material detection method, a transparent material detection system and a transparent material correction method. The detection method comprises the following steps: matching a corresponding relationship between the number of wave crests in a spectrogram at each position on a scanning line and the number of wave crests corresponding to each defect type; identifying defect types with the same number of wave crests in the defect types; according to the identification method, the defect types with the same crest number are distinguished by judging whether the variable quantity of the measured height data corresponding to the second peak wavelength in the spectrogram at the adjacent position on the scanning line is within the allowable distance error range or not. According to the invention, the defect type at each position can be accurately identified, and the measured height data corresponding to each peak wavelength in the spectrogram at the position of the defect type can be compensated according to the defect type, so that the real measured height data of the surface and the interior of the transparent material can be obtained; the accuracy of surface and internal data detection of the transparent material is improved, and the quality of the transparent material can be accurately identified.

A display panel and a display device. Because the pixel distribution density in a second display subarea (A12) is lower than that in a first display subarea (A11), the quantities of sub-pixels (pix) connected to scanning lines are not completely the same; a sub-pixel row having the greatest quantity of sub-pixels (pix) in the display panel is taken as a reference sub-pixel row, the quantity of the sub-pixels (pix) of the reference sub-pixel row is taken as a reference value, a sub-pixel row having the quantity of sub-pixels (pix) smaller than the reference value is taken as a compensation sub-pixel row, and a scanning line connected to the compensation sub-pixel row is taken as a first scanning line; the display panel is provided with load compensation units corresponding to at least part of the first scanning lines, and the load compensation units are located in the second display subarea.

A pixel circuit includes a driving sub-circuit, a data writing sub-circuit, a compensation sub-circuit, a storage sub-circuit, and a first control sub-circuit. The data writing sub-circuit is configured to write a data signal provided by a data line into a second node under control of a first scan line. The compensation sub-circuit is configured to write a threshold voltage of the driving sub-circuit into the first node under control of a second scan line. The first control sub-circuit is configured to provide a reference voltage signal provided by a reference voltage line to the second node under control of the first control line after the data writing sub-circuit writes the data signal into the second node, so that the data signal written into the second node is coupled to the first node through the storage sub-circuit.

The invention belongs to the technical field of display driving, and particularly relates to a display panel, a display driving method and a display device.The display panel comprises N rows of scanning lines, M columns of data lines and N rows * 2M columns of pixel circuits; each pixel circuit comprises a pixel unit and a control unit, the first control end of the control unit in the nth row is connected with the scanning line in the nth row, and the second control end of the control unit in the (2m-1) th column, the input end of the control unit in the (2m-1) th column, the second control end of the control unit in the (2m) th column and the input end of the control unit in the (2m) th column are all connected with the data line in the (m) th column; when the nth row of scanning line is opened, a data signal on the mth row of data line controls any one of the nth row of (2m-1) th row of control units and the nth row of (2m-1) th row of control units to be switched on or switched on alternately in a time-sharing manner; according to the display panel, the number of the data lines is reduced by half under the display condition of the same resolution, the power consumption and cost of the panel are reduced, and the refresh rate and the aperture opening rate are improved.

The invention provides an array substrate, a driving method and a display device. The array substrate comprises a plurality of scanning lines extending along a first direction, a plurality of data lines extending along a second direction and a plurality of pixels, wherein each pixel comprises at least three sub-pixels with different colors; a scanning line is arranged between every two adjacent rows of sub-pixels, and a data line is arranged between every two adjacent columns of sub-pixels; in two adjacent rows of sub-pixels, two sub-pixels electrically connected with the same data line have the same color, and the two sub-pixels are electrically connected with different scanning lines respectively; the sub-pixel comprises a pixel electrode; the length of the pixel electrode in the first direction is larger than the length of the pixel electrode in the second direction. According to the invention, the adjacent sub-pixels on the same data line have the same color in the frequency doubling mode, and the picture quality is improved.

The invention belongs to the technical field of display driving, and particularly relates to a display panel, a display driving method and a display device.The display panel comprises N rows of scanning lines, M columns of data lines and pixel circuits arranged in an array; each pixel circuit comprises a pixel unit and a control unit, and the first control end of the (2n-1) th row of control unit and the first control end of the (2n) th row of control unit are respectively connected with the nth row of scanning line; when the nth row of scanning line is started, a data signal on the mth column of data line controls any one of the control units in the mth column and the 2n-1 row and the control units in the mth column and the 2n row to be switched on or switched on alternately in a time-sharing manner, or the data signal on the mth column of data line controls any one of the control units in the mth column and the 2n-1 row and the control units in the m-1 column and the 2n row to be switched on or switched on alternately in a time-sharing manner; the number of scanning lines is reduced by half under the display condition of the same resolution, the power consumption and the cost of the panel are reduced, and the refresh rate and the aperture opening rate are also improved.

The invention discloses a display panel and a driving method, the display panel comprises a plurality of rows of pixels, a data signal output by a data output channel on a data driving chip is received for driving, each row of pixels is divided into a plurality of pixel groups, and each pixel group comprises a first pixel, a second pixel, a third pixel and a fourth pixel; the first pixel and the second pixel are connected with the Nth row of scanning lines, and the third pixel and the fourth pixel are connected with the (N + 1) th row of scanning lines; the Mth column of data lines connected with the first pixel and the (M + 2) th column of data lines connected with the third pixel are connected to the Sth data channel on the data driving chip, and the (M + 1) th column of data lines connected with the second pixel and the (M + 3) th column of data lines connected with the fourth pixel are connected to the (S + 1) th data channel on the data driving chip. Each data channel is connected with two data lines, and the two data lines are respectively connected with two pixels controlled by two rows of scanning lines, so that the cost of a data driving chip is further saved, and head shaking lines caused by polarity overturning are improved.

An e-book reader in which destruction of a driver circuit at the time when a flexible panel is handled is inhibited. In addition, an e-book reader having a simplified structure. A plurality of flexible display panels each including a display portion in which display control is performed by a scan line driver circuit and a signal line driver circuit, and a binding portion fastening the plurality of display panels together are included. The signal line driver circuit is provided inside the binding portion, and the scan line driver circuit is provided at the edge of the display panel in a direction perpendicular to the binding portion.

The invention provides a display panel and a display device, relates to the technical field of display, and optimizes the design of a pixel circuit. The display panel comprises a pixel circuit, and the pixel circuit comprises a driving transistor which is an N-type transistor; the grid electrode of the first light-emitting control transistor and the grid electrode of the second light-emitting control transistor are electrically connected with the same light-emitting control line, the first pole of the first light-emitting control transistor is electrically connected with the first power line, and the second pole of the first light-emitting control transistor is electrically connected with the first pole of the driving transistor; the first electrode of the second light-emitting control transistor is electrically connected with the second electrode of the driving transistor, and the second electrode is electrically connected with the light-emitting element; a grid electrode of the first transistor is electrically connected with the first scanning line, a first pole is electrically connected with the first power line, and a second pole is electrically connected with the driving transistor.

The present disclosure provides a display substrate and a display device. The display substrate comprises a base substrate, a plurality of sub-pixels, and first scan lines; the sub-pixels each comprise a sub-pixel driving circuit; the sub-pixel driving circuit comprises a driving transistor and a compensation transistor; a gate of the compensation transistor is coupled to a corresponding first scan line, a first electrode of the compensation transistor is coupled to a second electrode of the driving transistor, and a second electrode of the compensation transistor is coupled to a gate of the driving transistor; the compensation transistor comprises a compensation active layer; the compensation active layer comprises a first channel part, a second channel part, and a first conductor part; the first conductor part is separately coupled to the first channel part and the second channel part; and at least part of the orthographic projection of the first conductor part on the base substrate is located between the orthographic projection of the first scan line on the base substrate and the orthographic projection of the gate of the driving transistor on the base substrate.

The invention discloses a variable refresh rate control circuit and method, a display panel and a display device, and relates to the technical field of display, the circuit comprises pixel units arranged in an array and a corresponding refresh control module, and the refresh control module comprises a mode judgment unit, a refresh enable unit and a data write-in unit. The mode determination unit determines a pixel refresh mode through a row strobe signal of a scan line and a data signal of a source line, and outputs a first / second potential of a first / second potential line. The refresh enabling unit turns off the data write-in unit based on a first potential output by the mode judgment unit in a static refresh mode so as to maintain pixel data of the corresponding pixel unit, and turns on the data write-in unit based on a second potential output by the mode judgment unit in a dynamic refresh mode so as to write a data signal into the corresponding pixel unit. Pixel-level variable refresh rate adjustment is achieved, high-refresh-rate and low-refresh-rate display can be supported at the same time, and power consumption is effectively reduced while the display effect is guaranteed.

A gate driving circuit includes a first gate driving circuit and a second gate driving circuit. The first driving circuit includes 1st to Nth first shift registers that are configured to output 1st to Nth first scan signals to N number of scan lines, respectively. The second driving circuit includes 1st to Nth second shift registers that are configured to output 1st to Nth second scan signals to the other N number of scan lines, respectively. The number of transistors in each of the 1st to Nth second shift registers is less than the number of transistors in each of the 1st to Nth first shift registers.

A display device includes a data driver for supplying a reference voltage and a plurality of data signals to each of output lines, a divider including demultiplexers for supplying the reference voltage and the plurality of data signals, which are supplied from the each of the output lines, to a plurality of data lines, corresponding to control signals, a timing controller for supplying the control signals, and pixels connected to scan lines and the data lines. The pixels located on at least two different horizontal lines are simultaneously supplied with the reference voltage.

A display device includes a display panel including pixels connected to scan lines, a scan driving circuit including scan stages corresponding to the scan lines, respectively, where each of the scan stages receives a masking signal and a carry signal and outputs a scan signal, and a driving controller which divides the display panel into the first display area and the second display area, controls the scan driving circuit such that the first display area and the second display area operate with different frequencies, and outputs start signals provided at different timings. A first scan stage disposed in the first display area from among the scan stages receives a first start signal of the start signals as the carry signal, and a first scan stage disposed in the second display area from among the scan stages receives a second start signal of the start signals as the carry signal.

The invention discloses a display panel, a driving method and a display device. The disclosed display panel comprises a driving chip, a driving power supply and a plurality of pixel units, each pixel unit comprises a transistor and a light emitting diode; the driving chip is connected with the control end of each transistor through a scanning line or a data line, and the driving power supply is connected with each light emitting diode through each transistor; and the line width of the data line and / or the scanning line is smaller than that of the transmission line between the driving power supply and the light-emitting diode. The driving chip outputs a PWM scanning control signal to any transistor through a scanning line, or outputs a PWM data control signal to any transistor through a data line; when the transistor receives the PWM scanning control signal or the PWM data control signal, the driving power supply is connected to the light-emitting diode in the same pixel unit, so that the driving power supply drives the light-emitting diode, a large line width does not need to be designed, the stray capacitance of a wire can be reduced, and power consumption waste is avoided.

The invention provides a display brightness adjusting device and method and a medium, and relates to the technical field of display, and the method comprises the steps: dividing a display screen into a plurality of display regions according to the state of a scanning line on the display screen through a dividing module in a process of displaying a reference image through the display screen; determining brightness adjustment parameter values for the plurality of display areas through a determination module according to the states of the scanning lines respectively associated with the plurality of display areas; when the gray scale of the to-be-displayed image is smaller than a first threshold value, brightness adjustment is performed on the image data of the to-be-displayed image according to the brightness adjustment parameter values corresponding to the plurality of display areas through a first adjustment module; and displaying the image through the first display module according to the image data after brightness adjustment of the to-be-displayed image. The different display areas are divided according to the states of the scanning lines in the display screen, the different brightness adjusting parameter values are determined for the different display areas, targeted brightness adjustment is conducted on the scanning lines in the different areas, and the display effect of the display screen is improved.

A camera system has at least a first and a second camera each with an image sensor. Active areas of the image sensors of the first and second camera are determined and define an extended image space of a real-time panoramic video. A bounding box captures a fixed position in space or an object is set. The bounding box moves through extended image space. Image data determined only by the bounding box is harvested from camera image sensors and displayed within a window on a screen in real-time. Scan-line control of images sensors based on the bounding box is updated in real-time to form an e-gimbal. Steps of the e-gimbal are performed by a machine learning inference phase on a processor.

The embodiment of the invention provides a display panel, a driving method thereof and a display device, relates to the technical field of display, and can effectively improve the flicker phenomenon under low-frequency driving. The display panel comprises a pixel circuit, the pixel circuit comprises a driving module and a bias adjusting module, the control end of the bias adjusting module is electrically connected with a first scanning line, the first end of the bias adjusting module is electrically connected with a bias signal line, the second end of the bias adjusting module is electrically connected with the first end of the driving module, the first scanning line provides a first scanning signal, and the bias signal line provides bias voltage; the display panel has a first frequency, a driving period under the first frequency comprises a write-in frame and a plurality of holding frames, and the write-in frame and the holding frames respectively comprise at least one light emitting period; in the light emitting period, the total duration of the effective level of the first scanning signal is the first duration; at the first frequency, the first durations corresponding to at least part of the holding frames and the write-in frames are different, and / or the bias voltages corresponding to at least part of the holding frames and the write-in frames are different.

A pixel circuit, a display panel, and a display device. The pixel circuit includes a light-emitting element, a pre-charging circuit, a first energy storage circuit, a data writing circuit and a driving circuit; the pre-charging circuit writes a data voltage into a pre-charging node under the control of a pre-charging scanning signal; the first energy storage circuit is electrically connected to the pre-charging node for storing electric energy; the data writing circuit controls the connection or disconnection between the pre-charging node and the first terminal of the driving circuit under the control of the first scanning signal; the first terminal of the driving circuit is electrically connected to the light-emitting element for driving the light-emitting element. The present disclosure enables the threshold voltage compensation to be completed during the data writing phase without the line scan time limitation during high frequency display.

The embodiment of the invention provides a laser direct-writing imaging control method, a laser direct-writing imaging control system and related equipment, which are used for improving the precision and the consistency of laser direct-writing imaging. The method provided by the embodiment of the invention comprises the following steps: calculating a difference value Di between a theoretical position and a fitting coordinate of each laser light source, wherein i is a laser light source number; calculating a small-cycle scanning line number L = (Di (max)-Di (min)) / P + 1; after the laser array is reversely moved for Di (max) in the direction perpendicular to the scanning direction, the laser array is controlled to conduct small-period scanning; in each small-cycle scanning process, L times of scanning are sequentially carried out, in each scanning process, only the laser light source with the current position located at the theoretical exposure position is started and scans the corresponding pixel row, and after each time of scanning is completed, one pixel interval is moved in the vertical direction of scanning; and after each small-period scanning, moving S1 relative to the initial position of the previous small period in the vertical direction of the scanning direction, and then continuing the next small-period scanning until C times of small-period scanning are completed.

Provided in the present disclosure are a display substrate and a preparation method therefor, and a display apparatus. The display substrate comprises a plurality of display units, each display unit comprising a display area and a transparent area, and the display area comprising a plurality of sub-pixels; each sub-pixel comprises a second metal layer and a third metal layer, the second metal layer comprising a first scanning line and a second scanning line defining a display row, the third metal layer comprising a first power source line, a second power source line, a compensation line, and a data line defining the plurality of sub-pixels; the first power source line, the second power source line, the compensation line, and the data line all comprise a vertical linear section and a horizontal polyline section.

There is provided an ultrasound diagnostic apparatus including an ultrasound probe and an apparatus main body wirelessly connected to the ultrasound probe, the ultrasound probe including a B-mode processing unit and an M-mode processing unit configured to generate a B-mode image and an M-mode image, a wireless communication circuit configured to wirelessly transmit the B-mode image and the M-mode image to the apparatus main body, and a probe control unit configured to control the wireless communication circuit such that, each time a generation of a certain number of scanning lines in the B-mode image, which is less than the number of scanning lines in a single frame of the B-mode image, is completed, wireless transmission of the certain number of scanning lines in the B-mode image and wireless transmission of the M-mode image are alternately performed.

The invention discloses a display panel and a display device. The display panel comprises a driving circuit, a plurality of pixels, a plurality of first scanning lines and a plurality of clock lines, the driving circuit comprises N cascaded first shift register units; the clock line is electrically connected with the plurality of first shift register units; the first shift register unit is used for at least receiving an input signal and a clock signal on a clock line, and providing the clock signal of the clock line as a first scanning signal to a first scanning line; the effective time of the first scanning signals of at least part of the first shift register units connected with the same clock line is overlapped; the process that the clock signal jumps from the invalid level to the valid level is a first voltage edge, and the process that the clock signal jumps from the valid level to the invalid level is a second voltage edge; the hopping duration of the second voltage edge of the clock signal is greater than or equal to the second preset duration in at least part of the time period of the display time of one frame of picture. By adopting the technical scheme, the problem of non-uniform display of the display panel can be improved.

The present disclosure relates to a display device including scan lines, data lines, control signal lines, and subpixels. A first subpixel among the subpixels includes a first light emitting element including an anode electrode and a cathode electrode; a first driving circuit connected to a first scan line of the plurality of scan lines and a first data line of the plurality of data lines and configured to drive the first light emitting element; a first light emitting control transistor configured to be turned on or off according to a first light emitting control signal supplied to its gate node and control a connection between the first light emitting element and the first driving circuit; and a first light emitting control circuit configured to output a first light emitting control signal to the gate node of the first light emitting control transistor.