Chunghwa Picture Tubes, Ltd.

Chun-Chieh Chiu

Chien-Hung Zordius Chen

Shih-Chieh Lin

Hsiang-Tan Lin

Bi-Hsien Chen

Shin-Chang Lin

Chien-Yang Chen

Tzu-Chiang Shen

Yue-Li Chao

Shih-Meng Chang

Tien Yung Huang

A method for driving an OLED panel includes the following steps. An image signal is inputted to a power control unit, wherein the power control unit includes a calculator and a power control look-up table. A display loading ratio is calculated by the calculator according to the image signal, wherein the power control unit can find an emitting time ratio by the power control look-up table corresponding to the display loading ratio, the emitting time ratio can be transformed to an emitting time signal, and the emitting time signal can be inputted to the OLED panel so as to control the power consumption of the OLED panel.

Method and device for driving an OLED panel

A double-layer switchable stereo liquid crystal display includes a timing controller, a microprocessor, a backlight module, a first liquid crystal panel, a controller, and a second liquid crystal panel. The timing controller receives an image signal and generates a left/right eye signal and a two-dimensional/three-dimensional control signal. The microprocessor outputs the image signal, and generates a control signal and a backlight control signal according to output timing of the image signal. The first liquid crystal panel receives and displays the image signal. The controller outputs a voltage control signal according to the control signal. The second liquid crystal panel rotates liquid crystal within the second liquid crystal panel according to the voltage control signal. A period for the second liquid crystal panel rotating the liquid crystal to a second angle is longer than a period for the second liquid crystal panel rotating the liquid crystal to a first angle.

Double-layer switchable stereo liquid crystal display and operation method thereof

The present invention provides a 3D image signal controlling method. The method comprises inputting a left eye image into the first liquid crystal layer, turning off the backlight module and switching gray levels of the second liquid crystal layer to a minimum gray level during (4N&#x2212;3)th time interval, wherein N is natural number; stopping inputting the left eye image, turning on the backlight module and remaining the gray levels of the second liquid crystal layer as the minimum gray level during (4N&#x2212;2)th time interval; inputting a right eye image into the first liquid crystal layer, turning off the backlight module and switching the gray levels of the second liquid crystal layer as a maximum gray level during (4N&#x2212;1)th time interval; and stopping inputting the right eye image, turning on the backlight module and remaining the gray levels of the second liquid crystal layer as the maximum gray level during (4N)th time interval.

Signal controlling method for 3D image display device

A driving device and a driving method for a liquid crystal display are provided. The driving device includes a memory unit, a comparator, a compensation unit, and a selector. The memory unit provides a storage image and a previous comparison result. The comparator compares a present image with the storage image and outputs a present comparison result. The compensation unit processes the present image according to the storage image to generate a plurality of processed present images. The selector selects and outputs one of the present image and the processed present images according to the previous comparison result and the present comparison result. Thereby, the space required in the memory unit is reduced and the image display quality is improved.

Driving device and driving method for liquid crystal display

A backlight module driving system and a driving method thereof are applied to a Liquid Crystal Display (LCD). In the LCD, a timing controller obtains a three-dimensional (3D) image signal provided by a graphics processor, generates a Liquid Crystal (LC) driving control signal, and generates a corresponding light adjusting signal according to a data writing time and a Vertical Blanking Interval (VBI) time of the LC driving control signal. A backlight driver obtains and analyzes the light adjusting signal, so as to disable a backlight module during the data writing time, and enable the backlight module during the VBI time.

Backlight module driving system and driving method thereof

An overdriving apparatus including a memory unit, a position unit and an overdriving unit is provided. The memory unit stores a present frame received and outputs a previous frame stored in the memory unit. The position unit generates pixel position information according to a display control signal of the present frame. The overdriving unit determines a corresponding relationship between several pixel grey values of the present frame and several display areas of a display panel according to the pixel position information, so as to select a corresponding specific table group of each of the pixel grey values from a plurality of overdriving tables. The overdriving unit further generates an overdriving frame by looking up the corresponding specific table group of each of the pixel grey values.

Overdriving apparatus and method thereof

An image processing method including the following steps is provided. First, a two-dimensional original image is received. Next, a plurality of depth values corresponding to the two-dimensional original image are received. Afterwards, a two-dimensional shifting image is obtained according to the depth values and a standard value. A plurality of shifting values exist between the two-dimensional shifting image and the two-dimensional original image, and the shifting values are determined by a plurality of differences between the depth values and the standard value. Thereafter, a three-dimensional image is produced according to the two-dimensional original image and the two-dimensional shifting image.

Image processing method

A 3D image display system includes a display equipment and a shutter glasses. The display equipment includes an LCD module. The LCD module has a linear polarizing unit and is able to generate an image light from the linear polarizing unit. The shutter glasses include two liquid crystal optical units, at least one linear polarizing unit, and at least one polarizing optical element. The linear polarizing unit is disposed between the polarizing optical element and the liquid crystal optical units. The image light passes through the polarizing optical element, the linear polarizing unit, and one of the liquid crystal optical units in sequence. When the image light passes through one of the liquid crystal optical units, the other liquid crystal optical unit blocks the image light.

3-D image display system and display equipment and shutter glasses thereof

A driving device and a driving method for a liquid crystal display are provided. The driving device includes a memory unit, a comparator, a compensation unit, and a selector. The memory unit provides a previous image and a previous comparison result. The comparator compares a present image with the previous image and outputs a present comparison result. The compensation unit processes the present image according to the previous image to generate a plurality of processed present images. The selector selects and outputs one of the present image and the processed present images according to the previous comparison result and the present comparison result. Thereby, the space required in the memory unit is reduced and the image display quality is improved.

Growing community of inventors

Taoyuan County, Taiwan

Chun-Chieh Chiu