Display Notch Crosstalk Prevention via Data Modulation
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Solution Overview
Problem
Display devices face challenges in improving image quality due to non-standard planar shapes of display regions, which can lead to image defects like horizontal crosstalk, especially in regions not displaying images such as notch and corner areas.
Innovation Solution
A display device with a data modulator that analyzes and converts notch data for non-display regions into predetermined grayscales or black, based on the average grayscale of adjacent auxiliary display regions, to prevent horizontal crosstalk and enhance image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display region uses non-standard planar shapes (notch region, auxiliary display region), then the display device can provide more versatile display functions and improved user experience, but image defects such as horizontal crosstalk occur in non-display regions
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different display regions. The data modulator processes notch data and auxiliary display region data differently from main display region data. Specifically, the notch data is converted to a predetermined grayscale (e.g., black or dark gray) to match the non-display nature of the notch region, while auxiliary display regions receive appropriate display data. This localized differentiation eliminates horizontal crosstalk in non-display regions while preserving full functionality in display regions.
Solution Approach 2:
The patent changes the grayscale parameter of notch data to a predetermined value (such as black or dark gray) to prevent horizontal crosstalk. The data modulator analyzes the auxiliary display region data to determine an appropriate grayscale level for the notch region, ensuring that the notch region does not produce visual artifacts. This parameter modification transforms the problematic notch data into a visually neutral state that eliminates crosstalk while maintaining the structural integrity of the non-standard display layout.
2Productivity
If notch data is not modulated, then the data processing is simple and fast, but horizontal crosstalk occurs and image quality deteriorates
Solution Approach 1:
The patent implements preliminary action by pre-processing the notch data before it reaches the display panel. The data modulator proactively converts notch data to a predetermined grayscale and modulates it based on auxiliary display region characteristics in advance. This preliminary processing prevents horizontal crosstalk from occurring in the first place, rather than attempting to correct it afterward. The auxiliary display region data is analyzed first to determine appropriate modulation parameters for the notch region, ensuring seamless integration.
3Object-affected harmful factors
If notch data is converted to predetermined grayscale, then horizontal crosstalk is prevented and image quality improves, but additional data processing steps are required
Solution Approach 1:
The patent merges the notch data processing function with the existing data modulation architecture. The data modulator, which already processes main display region data and auxiliary display region data, is extended to also handle notch data. By integrating notch data modulation into the existing data processing pipeline, the patent avoids adding separate complex processing systems. The same data modulator unit that handles other display regions now also processes notch data, converting it to predetermined grayscale levels based on auxiliary region analysis, thereby reducing overall system complexity while maintaining effective crosstalk prevention.
Data Source
AI summary
A display device including a display panel and a data modulator. The display panel includes a main display region, an auxiliary display region adjacent to the main display region in a first direction, and a notch region adjacent to the auxiliary display region in a second direction crossing the first direction, an image not being displayed in the notch region. The data modulator modulates a notch data corresponding to the notch region among an image data.