Lg display co., ltd. (20240212629). DRIVING DEVICE AND DRIVING METHOD OF ELECTROLUMINESCENT DISPLAY APPARATUS simplified abstract
Contents
DRIVING DEVICE AND DRIVING METHOD OF ELECTROLUMINESCENT DISPLAY APPARATUS
Organization Name
Inventor(s)
Moo Kyoung Hong of Paju-si (KR)
DRIVING DEVICE AND DRIVING METHOD OF ELECTROLUMINESCENT DISPLAY APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240212629 titled 'DRIVING DEVICE AND DRIVING METHOD OF ELECTROLUMINESCENT DISPLAY APPARATUS
The driving device of an electroluminescent display apparatus described in the abstract includes various circuits and controllers to optimize the performance of the display.
- Pixel line determiner selects a representative pixel line with the largest accumulation stress caused by the input image.
- First sensing & driving circuit pre-senses pixels of the representative pixel line for each color.
- Over driving control (ODC) controller selects a color-based sample pixel characteristic value and controls sensing priority based on the variation amount of this value.
- Second sensing & driving circuit performs ODC sensing on color pixels of all pixel lines based on the sensing priority.
- Compensation value generator updates compensation values of the color pixels based on pixel characteristic values obtained through ODC sensing.
Potential Applications: - This technology can be used in various display devices such as TVs, monitors, and digital signage. - It can also be applied in automotive displays, wearable technology, and medical devices.
Problems Solved: - Optimizes the performance of electroluminescent displays by controlling sensing priorities and compensation values. - Enhances image quality and reduces stress on the display components.
Benefits: - Improved display quality and longevity. - Enhanced color accuracy and brightness. - Efficient power consumption and overall performance.
Commercial Applications: Title: Advanced Driving Device for Electroluminescent Displays This technology can be commercially used in the manufacturing of high-end displays for consumer electronics, automotive industry, and medical equipment. It can provide a competitive edge in the market by offering superior display performance and durability.
Questions about the technology: 1. How does the over driving control (ODC) controller improve the performance of the electroluminescent display? 2. What are the key advantages of using multi-voltage levels in the sensing data voltage for color pixels in the display?
Original Abstract Submitted
a driving device of an electroluminescent display apparatus includes a pixel line determiner selecting a representative pixel line, disposed at a position at which an accumulation stress caused by an input image is largest, from among all pixel lines, a first sensing & driving circuit pre-sensing pixels of the representative pixel line for each color, an over driving control (odc) controller selecting a color-based sample pixel characteristic value from among pixel characteristic values of the representative pixel line obtained through the pre-sensing and controlling a sensing priority of each color, based on a relative magnitude of a variation amount of the color-based sample pixel characteristic value, a second sensing & driving circuit performing odc sensing on color pixels of all pixel lines, based on the sensing priority, and a compensation value generator updating compensation values of the color pixels, based on pixel characteristic values of the color pixels obtained through the odc sensing, wherein a sensing data voltage supplied to each of the color pixels has multi-voltage levels, in a sensing period for the odc sensing.
