Novatek Microelectronics has patented a display control device for driving a display panel. The device includes a data analyzing circuit and a data compensation circuit to adjust grayscale values for optimal display quality. The system adapts based on frame rate, ensuring accurate compensation values. GlobalData’s report on Novatek Microelectronics gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Novatek Microelectronics, Adaptive video coding was a key innovation area identified from patents. Novatek Microelectronics's grant share as of January 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.

Display control device for driving display panel with compensation grayscale

Source: United States Patent and Trademark Office (USPTO). Credit: Novatek Microelectronics Corp

A recently granted patent (Publication Number: US11887552B1) discloses a display control device designed to manage the driving operation of a source driver for a display panel. The device includes a data analyzing circuit that processes sub-pixel data to obtain a resultant value, a data compensation circuit that determines compensation grayscale values based on the resultant value, and a frame rate detection circuit that adjusts the compensation values according to the frame rate. The device can output a single compensation grayscale value or multiple values during the vertical blank period of a frame period, with corresponding voltages generated by the source driver.

Furthermore, the patent details an operation method for the display control device, outlining the steps involved in analyzing sub-pixel data, determining compensation values, detecting the frame rate, and adjusting the compensation values accordingly. The method allows for different arithmetic operations to be performed on the sub-pixel data, such as average, median, or root mean square calculations. Additionally, the method specifies the output of grayscale voltages by the source driver based on the single or multiple compensation values during the vertical blank period. The patent also covers a display driving device that incorporates the display control device, emphasizing the importance of accurate compensation values and frame rate detection for optimal display panel performance.

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