Display Panel Data Segmentation for False Contour Prevention
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Solution Overview
Problem
Time-division driving methods in display devices often result in screen failures and color division issues due to the division of pixels into groups, leading to disruptive patterns such as false contours and color imbalances during image display.
Innovation Solution
A method and device that rearrange image data by dividing input data into first and second field data, inserting black data between neighboring data units, and transmitting these data signals to specific pixels in a display panel to ensure balanced color distribution across fields, thereby preventing color division and screen failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If pixels are divided into groups for time-division driving, then wiring complexity is reduced, but screen failures and color division occur
Solution Approach 1:
The patent divides pixels into first pixels and second pixels that emit light in different fields, and further segments field data into line units. Black data is inserted between neighboring line units to create a segmented data structure that prevents disruptive patterns while maintaining the time-division driving scheme's wiring simplicity.
Solution Approach 2:
Black data is introduced as an intermediary element between neighboring first field data and second field data. This intermediary prevents direct adjacency of certain pixel groups, thereby avoiding disruptive patterns and false contours while allowing the time-division driving scheme to function.
2Productivity
If pixels are divided into groups for time-division driving, then data transmission efficiency is improved, but color division and false contours occur
Solution Approach 1:
Field data is divided into multiple line units, and black data is inserted between these segments. This segmentation prevents continuous patterns that cause false contours while maintaining efficient data transmission through the time-division scheme.
Solution Approach 2:
Black data serves as a mediating element between different field data line units. This intermediary prevents the formation of disruptive patterns and false contours by breaking up continuous color patterns that would otherwise occur during time-division driving.
3Reliability
If black data is inserted between neighboring field data, then disruptive patterns are prevented, but data volume increases
Solution Approach 1:
Black data is inserted selectively between certain neighboring field data line units rather than uniformly across all data. This partial application prevents disruptive patterns where they occur while minimizing the overall increase in data volume.
Data Source
AI summary
A display device including a display panel having first pixels emitting light in a first field and second pixels emitting light in a second field is disclosed. According to one aspect, the display device includes a controller configured to extract first field data transmitted to the first pixels and second field data transmitted to the second pixels from input data, divide the first field data, insert black data between two neighboring first field data to generate first output data, divide the second field data, and insert black data between two neighboring second field data to generate second output data. The display device also includes a data driver configured to transmit a first data signal based on the first output data to the display panel in the first field and transmitting a second data signal based on the second output data to the display panel in the second field.