Himax Technologies, Inc.

Himax Media Solutions, Inc.

Kuei-Hsiang Chen

Lin-Kai Bu

Yuan-Kai Chu

Pen-Hsin Chen

Chung-Hsun Huang

Biing-Seng Wu

Shing-Chia Chen

Ming-Yeong Chen

Yao-Hwei Lee

Ying-Chou Tu

An image enhancement apparatus is provided. The image enhancement apparatus includes a global tone mapping curve generator, a local tone mapping curve generator, a reference gamma voltage generator and an image generator. The global tone mapping curve generator generates a global tone mapping curve for an input image according to global characteristic(s) of the input image. The local tone mapping curve generator generates a local tone mapping curve for each image partition within the input image according to the global tone mapping curve and further a feature of the image partition. The reference gamma voltage generator generates a plurality of reference gamma voltages for each image partition according to the corresponding local tone mapping curve for the image partition. The image generator generates an output image according to the reference gamma voltages of the image partitions and the input image.

Image enhancement method and apparatuses utilizing the same

An image processing module with less line buffers is provided. The image processing module receives an original image signal to drive a display panel. The image processing module includes a timing controller and a scaler. The timing controller includes a line buffer and a control unit. The line buffer registers the original image signal and outputs a storage image signal. The scaler receives the storage image signal, adjusts the resolution of the storage image signal, and outputs a scaled image signal to the control unit according to the resolution of the storage image signal. The control unit receives the scaled image signal and outputs a display signal to drive the display panel according to the scaled image signal.

Image processing module with less line buffers

A display driving circuit including a color correction unit and a driving unit is provided. The color correction unit receives a digital video signal and a polarity signal, and outputs a color corrected video signal according to the received digital video signal and the polarity signal, wherein the polarity signal represents the polarity of the driving polarity applied on the display apparatus. The driving unit receives a color corrected video signal and accordingly has the received color corrected video signal converted into an analog driving voltage. The display apparatus displays the frame on the display panel according to the received analog driving voltage.

Display driving circuit and a display apparatus using the display driving circuit and the method thereof

A method for detecting whether or not a display mode has to be switched and for detecting a frame of a liquid crystal display panel. The frame has M vertical blocks each including K display lines each having N horizontal blocks each being composed of multiple display units. First, a horizontal block flag value of each horizontal block is obtained according to energy levels of all of the display units of the horizontal block. Then, a display line flag value of each display line is obtained according to horizontal block flag values of all of the horizontal blocks of the display line. Next, M vertical block flag values are obtained according to the display line flag values of all of the display lines in each vertical block. Then, it is determined whether or not the display mode has to be switched according to the M vertical block flag values.

Method for detecting whether or not display mode has to be switched

A method for video processing which provides a scaled image using two different clock frequencies is provided. The method receives source pixel data using a first clock signal and scales the source pixel data to destination pixel data. After that, the destination pixel data is provided using a second clock signal having a second clock frequency and a third clock signal having a third clock frequency during blanking period and active period, respectively.

Method for video processing and scalar using the same

A method for accessing a single port memory is provided. A single port memory is used as a line buffer and divided into a plurality of memory blocks. The line buffer data is written into or read out from these memory blocks by turns with a special sequence corresponding to the operation mode; for example, a normal mode or a PLM mode. Therefore, the line buffer data can be written into or read out from the line buffer at the same time, and the size and cost of integrated circuit can be reduced.

Growing community of inventors

Tainan County, Taiwan

Kuei-Hsiang Chen