Display Driver Pixel Interpolation for 8K Compatibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices supporting 8K resolution face inefficiencies when displaying 4K content, requiring external converters that increase device size and cost, and lead to communication waveform degradation due to high information volume and encoding complexities.
Innovation Solution
A display driver that interpolates pixels by generating gradation voltage signals using a combination of latches and interpolation data units, allowing for internal signal processing without external converters, thereby reducing device size and communication issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If external converters are coupled to display devices to convert video signals, then compatibility with lower resolution content is improved, but device scale and cost increase
Solution Approach 1:
The patent integrates the video signal conversion function directly into the display device's internal circuitry, merging the converter and display device into a single integrated unit. This eliminates the need for external converters while maintaining compatibility with lower resolution content, thereby reducing device scale and eliminating additional cost.
Solution Approach 2:
The display device is designed with multi-functional capability to handle both native high-resolution content and lower resolution content through internal conversion. The single device performs multiple functions (displaying native resolution and converting external signals), replacing the need for separate external converter devices.
2Adaptability or versatility
If external converters are used to convert video signals, then compatibility with lower resolution content is improved, but communication waveform degradation occurs due to increased information volume
Solution Approach 1:
By integrating the conversion function internally, the patent eliminates additional external communication interfaces and signal transmission paths. This reduces the risk of communication waveform degradation that occurs when signals pass through external converters, while still enabling compatibility with lower resolution content.
3Adaptability or versatility
If pixel interpolation is performed to display lower resolution content on high resolution displays, then compatibility is improved, but device complexity increases
Solution Approach 1:
The patent divides the display panel into multiple regions and processes pixel data in segments. By dividing the high-resolution display into regions that can be mapped from lower-resolution input, the interpolation process becomes more manageable and less complex, while still achieving compatibility with lower resolution content.
Data Source
AI summary
A first latch retrieves a pixel data piece for each one horizontal scanning period of a video data signal and holds the pixel data piece as a first pixel data piece. A second latch retrieves the first pixel data piece from the first latch at a timing when the retrieval by the first latch is completed and holds the first pixel data piece as a second pixel data piece. An interpolation data generating unit obtains the first pixel data piece and the second pixel data piece and generates an interpolation data piece. A third latch alternately performs a retrieval of the second pixel data piece and a retrieval of the interpolation data piece, and sequentially outputs the retrieved data piece as a third pixel data piece. A gradation voltage output unit outputs the gradation voltage signal based on the third pixel data piece.