76results about How to "Solve the insufficient charging time" patented technology

A liquid crystal display device having a plurality of pixel cells for displaying an image and sensing light incident on the pixel cells, each of the pixel cells includes a pixel circuit that displays an image based on a data voltage supplied from a data line in accordance with a gate signal from a gate line; and a touch sensor that senses light incident on the pixel cell, storing a light sensing signal based on the sensed light, and supplying the stored light sensing signal to a read-out integrated circuit via a read-out line in accordance with a scan signal from a scan line.

Provided is a noncontact type power feeder system for feeding an electric power to a mobile object, which enables a quick charge and transmission of a high electric power and in which a power feeder and a power receiver can be readily manufactured at low cost, comprising a power feeder arranged along a running road surface for the mobile object 1, and a power receiver mounted to the mobile object, the power feeder and the power receiver being opposed fact-to-face to each other for feeding an electric power, wherein the power feeder is secured on the running road surface for the mobile object, or aerially above the running road surface while the power receiver is mounted at a position where the power receiver is opposed face-to-face to the power feeder with a predetermined gap therebetween when the mobile object is stopped at a position where the power feeder is set up, and each of the power feeder and the power receiver is composed of a planer core having long sides extended in the travel direction of the mobile object while the power feeder is fed thereto with an electric power through a power feed line laid underground or aerially.

The invention provides a detecting method and a device of pixel charging compensation, its compensation method and a display device. The detecting method includes steps of classifying a display zone of the display device into at least two compensation zones, and detecting the first brightness of a target pixel in every compensation zone; calculating the compensation time of charging the pixel in the compensation zone where the target pixel locates according to the differential value of the first brightness and the preset brightness. Thus, after compensating the pixel charging time in the compensation zone by the detected compensation time, the charging time of every pixel is approximately the same, so that the charging difference of pixels on different positions caused by the improvement of resolution rate, pixel density and image refreshing rate and delay of the signal line is reduced, the charging uniformity and sufficient charging time of pixels at different positions are guaranteed; besides, the brightness of different positions on the display zone of the display device is uniform.

The invention provides a pixel charging method and an electronic device. The method comprises the following steps: determining the polarity of a voltage signal supplied by a multiplexing control circuit to a target data line among M data lines; if the polarity is the first polarity, controlling the duration of the voltage signal supplied to the target data line to be equal to the first charging duration; If the polarity is the second polarity, controlling the duration of the voltage signal supplied to the target data line to be equal to the second charging duration; the first charge duration is longer than the first minimum charge duration required when the sub-pixel is charged by the voltage signal of the first polarity; the second charge duration is longer than that of the sub-pixel whenthe sub-pixel is charged by the voltage signal of the second polarity, and the second minimum charge duration is smaller than that of the predetermined charge duration. The predetermined charge duration is longer than the second minimum charge duration and smaller than the first minimum charge duration. The invention can ensure that the sub-pixel charging time is sufficient.

A method for driving a liquid crystal display (LCD) in which a single frame is divided into a plurality of sub-frames includes applying a first scan pulse signal and a second scan pulse signal to each gate line for each sub-frame, applying a first data signal to a data line by replying to the first scan pulse signal, applying a second data signal to the data line by replying to the second scan pulse signal, and switching on different light sources at each sub-frame, wherein the first and second scan pulse signals are simultaneously applied to different gate lines. Therefore, the LCD can transmit two scan pulse signals to a single gate line, thereby doubling a driving time of each gate line.

A liquid crystal display (“LCD”) has first, second, and third pixels adjacent to one another in a column direction. The LCD includes a first gate line connected to each of the second and third pixels in common, a capacitance electrode line connected to each of the first and second pixels in common, a first data line connected to the second pixel, and a second data line connected to the first and third pixels.

A liquid crystal display (LCD) device includes: a plurality of gate lines; a plurality of data lines that cross the gate lines to define pixel regions; a plurality of thin film transistors at the crossings of the gate and data lines, the thin film transistors of vertically adjacent pixels each connected to a shared gate line of the plurality of gate lines and on opposite sides of the shared gate line; and a plurality of pixel electrodes in the pixel regions, wherein each pixel electrode of the plurality of pixel electrodes is formed in two horizontally-adjacent pixel regions.

The invention provides a display device integrating a touch function and a driving method thereof. The display device integrating the touch function comprises a display unit, a touch detection circuit and a driving unit, wherein the touch detection circuit is used for touch detection to generate multiple touch detection signals, the driving unit is used for driving data refreshing of the display unit and touch detection of the touch detection circuit, and the data refreshing area and the touch detection area are not overlapped. According to the display device integrating the touch function and the driving method thereof, touch and display are driven at the same time, the charging time of display pixels is prolonged, and the problem that the charging time of the display device integrating the touch function is insufficient is solved. Meanwhile, reference voltages which are free of touch influences and reflect signal interference brought by display driver (namely, data refreshing) in real time by adding a reference unit, background noise in touch detection can be removed, the signal to noise ratio is improved, and accuracy of touch recognition is guaranteed.

The invention discloses a display method, a display device and a display system for a shutter type three dimensional image. According to the display method provided by the invention, a black picture frame image signal is displayed before a next monocular frame image signal, a frame of a black picture is inserted between displayed left and right single-frame images, double images of left and right single-frame images can be eliminated, a crosstalk problem of the three dimensional image is ameliorated, display time of the black picture frame image signal is shorter than display time of the monocular frame image signal, so a refresh frequency of the required display device is relatively low, and a pixel electrode in the display device is guaranteed to have enough charging time, quality of the displayed picture is improved, moreover, the display device with the low refresh frequency has a relatively high yield, and cost of three dimensional display products can be reduced.

The invention provides a pixel driving circuit and a driving method thereof, an array substrate and a display device. The pixel driving circuit comprises a reset module, a driving transistor, a compensation module, a data writing module and a storage module, the first voltage input by the first voltage input end connected with each pixel driving circuit is the same; the second voltage input by thesecond voltage input end connected with each pixel driving circuit is the same; the fourth voltage input by the fourth voltage input end connected with each pixel driving circuit is the same; therefore, the pixel driving circuit of each pixel unit can be reset and compensated at the same time through the reset module and the compensation module; for example, all pixel units can be controlled to be reset and compensated uniformly at the initial stage of each frame; and then data writing and light emitting are carried out through line-by-line scanning, so that sufficient charging time can be ensured, insufficient charging caused by refresh rate and resolution improvement is eliminated, and the problem of non-uniform pictures caused by drifting of threshold voltage Vth of a driving transistor is thoroughly eliminated.

A display apparatus and a method for driving a display panel thereof are provided. The display apparatus comprises a display panel and a gate driver. The display panel comprises two gate lines, two source lines, a pixel and two transistors. The pixel is electrically coupled to the two gate lines and the two source lines through the two transistors respectively. The gate driver is for providing a first pulse to one of the gate lines according to a predetermined frequency and providing a second pulse to another one according to the predetermined frequency. An enabling period of the second pulse is behind an enabling period of the first pulse, and a predetermined time interval is existed between a rising edge of the second pulse and a rising edge of the first pulse. The predetermined time interval is longer than a time length of the enabling period of the first pulse.

The embodiment of the invention discloses an array substrate, a display panel, a display device and a driving method. The array substrate includes: a plurality of pixel circuit rows, each pixel circuit row including a plurality of pixel circuits; a plurality of scanning line group, each pixel circuit row comprising at least two pixel circuit groups, each scanning line group comprising at least twoscanning lines, the at least two pixel circuit groups and the at least two scanning lines in the corresponding scanning line groups being arranged in a one-to-one correspondence mode, and the pixel circuits in the same pixel circuit group being connected with the same scanning line. Different scanning line groups provide scanning signals for each pixel circuit row in sequence, and the scanning lines in the same scanning line group provide scanning signals for the pixel circuits in the corresponding pixel circuit rows at the same time. According to the embodiment of the invention, the problemof charging delay caused by excessive load of the existing display panel is solved. Each row of pixel circuits can be ensured to have sufficient charging duration, the pixel circuits can be opened accurately and timely, and the pixel charging delay is avoided.

Embodiments of the present disclosure relate to a touch display device, a touch circuit, and a touch sensing method. More particularly, by performing differential sensing on touch electrodes, noise components which the touch electrodes receive from display electrodes (e.g., data line, gate line, etc.) may be removed to accurately sense a touch, so that display driving and touch sensing may be normally performed simultaneously. In this manner, the display driving and the touch sensing may be normally performed simultaneously, thereby enabling implementation of a high-resolution display.

A liquid crystal display (LCD) device and an LCD panel are disclosed. The LCD panel comprises charging scanning lines, discharging scanning lines, first data lines, second data lines and pixel units. The charging scanning lines and the discharging scanning lines are arranged alternately and parallel with each other in a first direction. The first data lines and the second data lines are arranged parallel with each other in a second direction and insulatedly intersect the charging scanning lines and the discharging scanning lines. Each pixel unit comprises a charging TFT, a discharging TFT and a pixel electrode. When two adjacent charging scanning lines are being scanned in the LCD panel, two adjacent discharging scanning lines located in other rows different from those of the two adjacent charging scanning lines being scanned are scanned within a same scanning time frame. The LCD panel can extend the charging time of gates.

The invention discloses a display panel, a driving method thereof and a display device, which utilize a plurality of gating circuits to provide data signals for data lines and are beneficial for realizing the design of a high screen-to-body ratio and a narrow frame. Moreover, for the same sub-pixel group connected with the same gating circuit, the gating circuit outputs a data signal to the sub-pixel group in sequence when the first scanning line corresponding to the sub-pixel group outputs a scanning signal, and completes the output of the data signal to the sub-pixel group before the secondscanning line corresponding to the sub-pixel group outputs the scanning signal. Namely, for the same sub-pixel group, the sub-pixels are divided into multiple sub-pixels; the time of outputting the scanning signal by the first scanning line is overlapped with the time of outputting the data signal by the gating circuit; therefore, the charging time of the scanning signal can be ensured to be the time for scanning a row of pixels, namely, the scanning signal is ensured to have enough charging time, so that vertical stripes caused by relatively short charging time of the scanning signal can be eliminated while high-frequency display is realized, and the display effect is improved.

A display apparatus and a data read-out controller thereof are provided. The display apparatus comprises a touch display module, a first data read-out controller, and a second data read-out controller. Each of the first and the second data read-out controllers comprises a first read-out switch, a second read-out switch, a first sampling unit, and a second sampling unit. According to the time division multiple output operated by the first sampling units, the first read-out switches, the second sampling units, and the second read-out switches of the first and the second data read-out controllers, the number of the output points and power loss can be reduced effectively.