Realtek Semiconductor Inc.

Jui-Te Wei

Yung-Chih Chen

Wei-Chih Lin

Po-An Chen

Yuh-Wey Lin

A display control chip includes a first memory and a computing circuit. The first memory is configured to store a plurality of character images respectively corresponds to a plurality of characters of a character encoding format. The computing circuit is coupled with the first memory, and is configured to receive first update data generated by encoding input data according to the character encoding format, and is configured to use the first update data to update text data in a second memory. When the computing circuit reads the text data in the second memory, the computing circuit is configured to: search among the plurality of character images to find a plurality of target images corresponding to the text data; and output first display data according to the plurality of target images, in which the first display data is for generating a first display picture including the plurality of target images.

Display control chip, operating method thereof and display system comprising the same

A method for optimizing a display image based on display content is provided. The method is applicable to a display control chip, and includes following operations: receiving a video signal configured to transmit an image of a frame; with respect to multiple different sub-areas in an area of the image, calculating a pixel number distribution of each sub-area along multiple characteristic values; determining, according to the pixel number distribution, whether the sub-area comprises a corresponding first target pattern of multiple first target patterns; if the multiple sub-areas comprise the multiple first target patterns, respectively, performing a first preset image processing to the image to generate a processed image; if the multiple sub-areas are free from comprising the multiple first target patterns, respectively, omitting the first preset image processing to the image; and generating a display signal according to the processed image or the image.

Method for optimizing display image based on display content, related display control chip and related non-transitory computer-readable medium

A display system includes a display device. The display device is arranged to receive a video signal and a control signal from a host system, and includes a processing circuit and a display screen, wherein the processing circuit is arranged to process an original frame corresponding to the video signal according to the control signal, to generate a magnified frame, and generate a processed frame according to the magnified frame and the original frame, and the display screen is coupled to the processing circuit, and is arranged to display the processed frame.

Control method for magnifying display screen and associated display system

A measurement system for measuring a motion picture response time (MPRT) of a liquid crystal display (LCD) has a computer and a measurement device. The computer controls a display panel of the LCD to switch between a plurality of different gray levels. The measurement device measures variations of brightness of the display panel when the display panel switches its gray level. The computer obtains at least a gray level response time (GLRT) normalized curve according to results of measuring the variations of the brightness. The computer integrates the at least a GLRT normalized curve to obtain at least an MPRT normalized curve, obtains at least a time interval of the at least an MPRT normalized curve, and calculates an average of the at least a time interval to obtain the MPRT of the LCD.

System and method for measuring a motion picture response time of a liquid crystal display

A processor is configured to be coupled to a display panel. The processor includes a first storage circuit, a converter circuit, and an overdrive circuit. The first storage circuit is configured to store input video data. The converter circuit is configured to receive the input video data, and adjust a frame rate of the input video data, to generate adjusted video data. The overdrive circuit is configured to perform an overdrive process according to the adjusted video data, to generate a driving signal, such that the display panel displays a video according to the adjusted video data and the driving signal.

Processor and display method

A measurement system has a photosensitive element, an analog-to-digital converter (ADC), a reference voltage source, and a transmission interface. The photosensitive element senses variations of brightness of a display panel of a liquid crystal display (LCD) to generate a voltage signal. The ADC converts the voltage signal into a digital signal. The reference voltage source provides a reference voltage to the ADC to drive the ADC to dynamically adjust a convertible voltage range of the ADC for any voltage inputted to the ADC according to the reference voltage. The transmission interface transmits the digital signal to a computer to trigger the computer to calculate a response time of the LCD according to the digital signal.

Measurement system and method for measuring a response time of a liquid crystal display

An OSD driving circuit is embedded in the display for controlling OSD operations of the display. The OSD driving circuit has a signal port and a microprocessor. The signal port is coupled to a signal channel for receiving an OSD opening command and for receiving an OSD execution command from a host via the signal channel. The OSD execution command is generated in response to operations of a cursor device of the host, and movement of a cursor displayed on a display panel of the display is controlled by the cursor device. The microprocessor is coupled to the signal port for driving the display panel to display an OSD menu according to the OSD opening command, and for executing OSD operations of the display according to the OSD execution command and coordinates of the cursor.

Growing community of inventors

Hsinchu, Taiwan

Jui-Te Wei