44results about How to "Reduce RC load" patented technology

A driving method for a liquid crystal display (LCD) panel is provided. The method comprises applying corresponding overdriving data for source data to the LCD panel at the beginning of a frame; applying black data to the LCD panel before the end of the frame, wherein the polarities of the applied black data are the same as the pixel electrode driving polarity at the beginning of a next frame; and applying the source data to the LCD panel at a time between the application of the overdriving data and the application of the black data. The driving method of the invention eliminates the need for large TFTs by reducing the voltage change between the end of a previous frame and the beginning of a current frame, and also can perform pre-charging for the pixel electrodes without adding any other device.

The invention relates to a touch control display panel, which comprises a substrate, a light shielding matrix layer and a sensing circuit, wherein the sensing circuit is positioned on one side surface of the substrate to form a single layer structure, is positioned in a vertical projection part of the light shielding matrix layer and comprises a plurality of driving electrodes, a plurality of sensing electrodes and a plurality of conducting wires, in addition, the driving electrodes and the sensing electrodes are mutually insulated and separated, and the conducting wires are respectively connected with each driving electrode and each sensing electrode, wherein the sensing electrodes, the driving electrodes and the conducting wires are all positioned in the single layer. The invention also discloses a touch control display device. The touch control display panel and the touch control display device provided by the invention have the advantages that under the condition of not increasing the light transmission loss, the distribution area of the sensing circuit can be increased, so that the goals of improving the sensitivity of the touch control display panel and the touch control display device, reducing the integral resistance-capacitance load and improving the integral efficiency are achieved.

The invention discloses a gate driving circuit and a display device. The gate driving circuit includes first to eighth dock signal lines and first to N^th stage first shift registers, where N is an integer greater than or equal to 9. The first to eighth clock signal lines are configured to provide first to eighth clock signals, respectively. The i^th stage first shift register is coupled to one of the first to eighth clock signal lines and receives one of the first to eighth clock signals, a first input signal and a second input signal and outputs an i^th stage first output signal, where i is any integer from 1 to N.

First touch patterns of a touch display device are disposed on a first substrate, and have bridge units and first electrode portions. The first electrode portions are disposed spaced from each other. The bridge units are connected with adjacent two of the first electrode portions. A second substrate is disposed opposite to the first substrate. A liquid crystal layer is disposed between the first substrate and the second substrate. One of the bridge units has two first portions, a second portion and two third portions. The first portions are located on the first electrode portions, and directly contact with the first electrode portions. The third portions are located on two of the first portions, and the second portion is located between two of the third portions. The first portion has a first width, and the second portion has a second width smaller than the first width.

An in-cell touch panel is disclosed. The in-cell touch panel includes a plurality of pixels. A laminated structure of each pixel includes a substrate, a TFT layer, a liquid crystal layer, a color filter layer, a glass layer and a second conductive layer. The TFT layer is disposed on the substrate. A first conductive layer and a common electrode are disposed in the TFT layer. The first conductive layer is arranged in mesh type. The liquid crystal layer is disposed above the TFT layer. The color filter layer is disposed above the liquid crystal layer. The glass layer is disposed above the color filter layer. The second conductive layer is disposed above the glass layer.

A display panel is disclosed, which includes: a first substrate; plural scan lines disposed on the first substrate and extending along a first direction; plural data lines disposed on the first substrate and extending along a second direction, wherein at least one pixel region is defined by the scan lines and the data lines, and the first direction and the second direction are different; a common electrode disposed in the pixel region; and a metal line electrically connecting to the common electrode and extending along the first direction, wherein the metal line has a first portion overlapping the common electrode and a second portion overlapping one of the data lines; wherein the first portion has a first maximum width along the second direction, the second portion has a second maximum with along the second direction, and the first maximum width is greater than the second maximum width.

The invention provides a CMOS GOA circuit, by disposing a feedback regulation module (4) connected to output buffer module (3) and signal processing module (2) in the GOA unit, to achieve the following: when the scan driver signal (G(N)) becomes high, the positive feedback from the sixth N-type TFT (T6) of feedback regulation module (4) will enhance the pull-down capability of the signal processing module (2) to reduce the rising time of the scan driver signal (G(N)) waveform; when the scan driver signal (G(N)) becomes low, the positive feedback from the fifth P-type TFT (T5) of feedback regulation module (4) will enhance the pull-up capability of the signal processing module (2) to reduce the falling time of scan driver signal (G(N)) waveform; that is, the invention can reduce the RC loading of scan driver signal (G(N)) and improve the stability of high resolution display panel.

The present exemplary embodiments provide a touch display device which connects a touch driving circuit and a plurality of touch sensors using a plurality of dummy pixels disposed on a display panel to recognize touch event of a user. When the touch wiring line is implemented, the same material as the pixel electrode or the source line included in the plurality of dummy pixels is used so that a separate process for implementing the touch wiring line is not necessary. Further, in a pixel structure in which one data line is disposed for every two pixels, the source line is disposed in a region where the data line is not disposed to be used as a touch wiring line. Therefore, the touch recognizable area may expand as compared with a case using a pixel metal.

A pixel structure is provided. The pixel structure has a first substrate, a scan line, a data line, an active device, a pixel electrode, and a conductive strip-shaped pattern. The scan line and the data line are located on the first substrate. The active device is electrically connected to the scan lines and the data line. The pixel electrode is electrically connected to the active device. The conductive strip-shaped pattern is correspondingly disposed over the data line. The conductive strip-shaped pattern has an opening at least partially overlapped with the data line in a vertical projection at the first substrate.

A pixel structure and a fabrication method thereof are provided, and the fabrication method includes steps as follows. A gate and a scan line connected to the gate electrode are formed on a substrate. An insulation layer is formed on the substrate and is patterned to form an opening corresponding to the gate electrode. A gate insulation layer is formed to cover the gate electrode and the scan line. A channel layer is formed on the gate insulation layer and is located in the opening. A first ohmic contact layer and a second ohmic contact layer are formed on the channel layer and are located in the opening. A source electrode, a drain electrode and a data line connected to the source electrode are formed on the first ohmic contact layer and the second ohmic contact layer. A first electrode is formed and is electrically connected to the drain electrode.

A touch panel includes a plurality of driving lines, a plurality of sensing lines and a plurality of sensing units. The sensing lines are arranged intersecting with the driving lines. The sensing units are arranged in an array, and each of the sensing units is electrically coupled to a corresponding one of the driving lines and a corresponding one of the sensing lines. The driving lines or the sensing lines only pass through a single side of the touch panel.

A display panel, a repair method, and an active device array substrate including a substrate, first and second signal lines, active devices, pixel electrodes, a bus line, and a switch device are provided. The bus line and the switch device are disposed outside a display region of the active device array substrate. The switch device has a gate coupled to the bus line, a first electrode coupled to a signal source, and a second electrode coupled to one of the first signal lines. The first and second electrodes are comb-shaped. The first electrode includes first fingers parallel to one another and a first connection portion connected to the first fingers. The second electrode includes second fingers parallel to one another and a second connection portion connected to the second fingers. The first and second fingers are arranged alternately. A portion of the first electrode is located outside the gate.

The present invention concretely discloses a pixel compensation circuit. The pixel compensation circuit comprises a luminescent device emitting light under the action of a drive signal; a drive transistor producing the drive signal under the action of data voltage; a first voltage storage unit used for storing the data voltage; and a data voltage end for switchably writing the data voltage into a grid electrode of the drive transistor through a coupling capacitor, wherein the luminescent device, the first voltage storage unit and the drive transistor are disposed at a first pixel inner region. The pixel compensation circuit provided by the present invention has a voltage compensating effect on the drive transistor, extra current is produced meanwhile to carry out extra compensation on the situation of crossed voltage rise caused by long-time usage of an OLED assembly, the circuit is divided into pixel inner and outer regions, an aperture opening ratio of the pixel inner region is raised, locating and wiring space of the pixel inner region is enlarged, and technical risks and pixel resistance-capacitance loads are lowered.

The invention provides a touch control assembly and a touch control display device. The touch control assembly comprises a touch control layer; the touch control layer comprises a plurality of touch control units; each touch control unit comprises a first electrode arranged along a first direction, and a second electrode arranged in the second direction, wherein the first electrode is electricallyinsulated from the second electrode. At the position close to the intersection of the first electrode and the second electrode, the first electrode comprises at least one concave part, and the secondelectrode comprises at least one convex part matched with the concave part. The concave part is arranged on each first electrode, and the convex part is arranged on each second electrode; therefore,the impedance of the first electrode at the position close to the intersection of the first electrode and the second electrode is not increased, and the impedance of the second electrode at the position close to the intersection of the first electrode and the second electrode is reduced, so that the resistance-capacitance load of the second electrode is reduced, the scanning time of the touch display device is shortened, and the point reporting rate is increased.

The invention discloses a pixel structure and a liquid crystal display panel. The pixel structure includes a substrate, a first metallic layer, a first insulation layer and a transparent electrode layer; the first metallic layer is formed on the substrate, and includes patterns of gate lines; the first insulation layer is formed on the first metallic layer; the transparent electrode layer is formed on the first insulation layer; the transparent electrode layer includes first transparent electrodes; projections of the first transparent electrodes on the gate lines are positioned in local regions of the gate lines, i.e., parts corresponding to the gate lines, of the first transparent electrodes do not completely cover the gate lines. The liquid crystal display panel is a liquid crystal display screen having the pixel structure. The pixel structure can reduce the RC load of the gate lines, the voltage provided by the gate lines is more stable, and influence on the pixel charging rate is reduced. Influence of high-low potential generated by the powered-on gate lines on the transparent electrodes is reduced, lateral light leakage of the gate lines of the pixel structure is avoided, the aperture opening ratio of pixels is improved, and the display quality of the liquid crystal display screen having the pixel structure is improved.

Embodiments of the invention provide a self-capacitance touch liquid crystal grating, a manufacturing method thereof, a driving method thereof, a self-capacitance touch liquid crystal 3D display panel, and a self-capacitance touch liquid crystal 3D display device. In the grating provided by embodiments of the present invention, as orthographic projections of strip-shaped electrodes on a sensing electrode layer are respectively located in row spacing areas or column spacing areas formed through sensing electrodes arranged in a matrix form, the sensing electrode-to-earth capacitance is located between a surface-shaped electrode and the sensing electrodes, and the strip-shaped electrode will not cause the sensing electrode-to-earth capacitance to be increased. Therefore, RC loading of the sensing electrodes can be largely reduced, and also the interference between the sensing electrodes and the grating can be avoided, so that touch operations will not interfere with operations of the grating.