Novatek Microelectronics Corp.

Chieh-Hsiang Chang

Huang-Chin Tang

Wen-Pin Tsai

Chun-Hung Chen

Feng-Jung Kuo

Chia-Hsin Tung

Wen-Ching Huang

Chun-Ta Wu

Chien-Chuan Huang

Hong-Jun Hsiao

Hao-Jan Yang

Shih-Hsiang Pan

Po-Shen Chu

Chi-Hung Lin

Kuo-Yuan Lu

A display driver circuit is configured to drive a display panel having a multiplexer. A method for the display driver circuit includes steps of: sending, by the display driver circuit, a plurality of first data voltages to the display panel through a switch of the multiplexer; and outputting, by the display driver circuit, a control signal to the switch during a first period in which the plurality of first data voltages sent through the switch remain unchanged, wherein the control signal controls the switch to be turned on and keep in a conducted status until the display driver circuit sends a second data voltage different from the plurality of unchanged first data voltages through the switch.

Method for controlling switching of multiplexer of display panel according to image content and display driver circuit thereof

A method for a display driver circuit configured to drive a display panel includes steps of: determining whether a plurality of first data codes corresponding to first data voltages to be output through a multiplexer to data lines in the display panel during a first horizontal line period equal; determining whether each of the first data codes equals a corresponding second data code among a plurality of second data codes corresponding to second data voltages to be output through the multiplexer to the data lines during a second horizontal line period immediately after the first horizontal line period; and in response to that the first data codes equal and each of the first data codes equal the corresponding second data code, outputting a control signal to keep a switch of the multiplexer staying in a turn-on state after the switch is turned on for outputting a first data voltage.

A method for a driver circuit configured to drive a display panel includes steps of: outputting a plurality of control signals according to a first control timing scheme to control a multiplexing circuit comprising a plurality of switches disposed in the display panel in a first operation mode; and outputting the plurality of control signals according to a second control timing scheme to control the multiplexing circuit in a second operation mode. Wherein, the first control timing scheme comprises a pre-charge period in which the plurality of switches of the multiplexing circuit are turned on, and the second control timing scheme comprises no pre-charge period.

Method for driving display panel and related driver circuit

A display device driving method, suitable for a driver circuit, includes the following steps: determining magnitude of a plurality of data voltages according to received display data, and the plurality of data voltages are configured to be transmitted to a plurality of pixel circuits via a plurality of data lines; comparing the magnitude of the plurality of data voltages to generate a comparison result; and before providing corresponding ones of the plurality of data voltages to a first pixel group arranged at an i-th row of the plurality of pixel circuits, providing a first reset voltage having a value determined according to the comparison result to the plurality of data lines, or providing a second reset voltage to m data lines selected according to the comparison result from the plurality of data lines, i is a positive integer, and m is an integer.

Display device driving method and related driver circuit

A display driving circuit, a calibration module, and an associated calibration method are provided. The display driving circuit includes an internal clock circuit and the calibration module. The internal clock circuit generates an internal clock signal. The calibration module includes a counting circuit and a trimming circuit. The counting circuit counts pulses of a reference clock signal to generate a detected reference-clock count and counts pulses of the internal clock signal to generate a detected internal-clock count. The trimming circuit generates a calibration signal to adjust frequency of the internal clock signal when a predefined condition is satisfied. The predefined condition is related to comparison between a first preset count and one of the detected reference-clock count and the detected internal-clock count.

Display driving circuit, calibration module, and associated calibration method

A gamma curve and a color coordinate adjusting apparatus and method are provided. The method includes: receiving a display image and generating a color analyzing data, wherein the color analyzing data comprises a plurality of stimulus values respectively corresponding to a plurality of driven gray levels; receiving a target color coordinate value and a target luminance value; operating a searching operation according to a setting range on the color analyzing data, calculating a simulation color coordinate value and a simulation luminance value according to the stimulus values of each of the driven voltage levels, and obtaining a plurality of adjusted node information for the gamma curve and the color coordinate according to a difference between the target color coordinate value and the simulation color coordinate value and a difference between the target luminance value and the simulation luminance value corresponding to each of the driven voltage levels.

Gamma curve and color coordinate adjusting apparatus and adjusting method thereof

A semiconductor device includes a chip, a plurality of first bumps, and a plurality of second bumps. The chip includes an active surface. The first bumps are disposed on the active surface along a first direction. The second bumps are disposed on the active surface along a second direction parallel to the first direction, wherein one of the second bumps is located between adjacent two of the first bumps, a closest distance from the second bumps to the fan-out region is smaller than a closest distance from the first bumps to the fan-out region, and a first width of one of the first bumps is larger than a second width of one of the second bumps.

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Miaoli County, Taiwan

Chieh-Hsiang Chang