40results about How to "Improve screen display quality" patented technology

The invention discloses a gate driving circuit of a display, which is characterized in that at least one transistor is connected between a transistor providing a high potential node and a reference voltage signal input end in series, and a preset high potential is provided between the transistor that is connected to the node and an input end of the at least one transistor. For example, the drive voltage of a gate line corresponding to the gate is fed into the input end, and the preset high potential provided can reduce the potential difference between the source and the drain of the transistor, so that current leakage of the transistor can be reduced, and the stability of the drive voltage of the gate electrode driving circuit is further improved so as to improve the reliability of the gate electrode driving circuit.

A liquid crystal display (LCD) device having a first substrate and a second substrate with liquid crystal sealed therebetween, includes a plurality of gate lines and data lines crossing each other on the first substrate; a gate driving section for driving the gate lines; a source driving section for precharging the data lines for a first time and supplying video signals to the data lines; and a precharge circuit section for precharging the data lines for a second time.

The invention discloses a gate driving circuit of a display, wherein at least one transistor is connected in series between a transistor connected with a node providing a high potential and a reference voltage signal input end, so that voltage load between the source electrode and the drain electrode of the transistor connected with the node is shared by the at least one transistor, thereby reducing the situation of current leakage of the transistor, improving the stability of the driving voltage of the gate driving circuit, and further promoting the reliability of the gate driving circuit.

A gate electrode driving circuit of a display device. Utilized is at least one transistor (T33) serial-connected between a transistor (T31) connected to a node (Q1) providing a high potential and a reference voltage signal input end (Vss), while a voltage load between a source electrode and a drain electrode of the transistor (T31) connected to the node (Q1) is apportioned to the at least one transistor (T33). This reduces the occurrence of current leakage on the transistor (T31), thus increasing the stability of the driving voltage of the gate electrode driving circuit, thereby improving the reliability of the gate electrode driving circuit.

The embodiment of the invention discloses a liquid crystal display device and a common voltage compensation method thereof, and belongs to the technical field of display. The common voltage compensation method comprises the steps that m transverse lines and n vertical lines are simulated in the display area of a liquid crystal display panel; common voltage of the m transverse lines is simulated, and gate and source electrode parasitic capacitance of the corresponding m transverse lines is obtained according to the simulated common voltage of the corresponding m transverse lines; the compensation capacitance value of the corresponding m transverse lines is obtained according to the calculated gate and source electrode parasitic capacitance of the corresponding m transverse lines; the common voltage of the corresponding m transverse lines is calculated again; and whether the difference value between the common voltage of the adjacent transverse lines is less than a standard value is judged, and the gate and source electrode parasitic capacitance of the liquid crystal display device is compensated according to the compensation capacitance value of the corresponding m transverse lines if the judgment result is yes so that the common voltage along the direction of the m transverse lines is enabled to be uniform in distribution. The common voltage along the direction of the m transverse lines is enabled to be uniform in distribution so that frame display quality is enhanced.

The invention provides a screen resolution adjusting method, which is applied to image display of a display device and comprises the following steps of: providing a layout menu by the display device to obtain a screen layout configuration consisting of a plurality of display layouts; the display device performs resolution parameter setting for each display layout according to the screen layout configuration and a screen native resolution parameter of the display device. The display device sets and modifies an original product identification code and a screen native resolution parameter of the display device according to each resolution parameter to generate an updated product identification code and a plurality of updated resolution parameters, and each image source reads the updated product identification code and the corresponding updated resolution parameter. And the corresponding transmission port outputs the image conforming to the updated resolution parameter to the corresponding display layout for display.

The embodiment of the invention relates to a method for improving liquid crystal display image sticking and a liquid crystal display driving device. The method for improving the liquid crystal display image sticking comprises the following steps: judging whether a first image in refresh display on a liquid crystal display within a preset time changes or not; and if not, controlling a second imageto be in refresh display on the liquid crystal display after the preset time so as to improve the image sticking caused by the long-term refresh display of the first image. As for the method and the device provided by the embodiment of the invention, the residual direct current voltage of the first image after long-term display can be reduced by inserting to display the second image opposite to the first image after the first image is displayed for a long term, thus improving the image sticking in liquid crystal display and enhancing the image display quality of the liquid crystal display.