Display Panel Frame Rate Conversion for Multi-View Cost Reduction
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Solution Overview
Problem
Conventional display devices struggle to smoothly reproduce high-frame-rate contents, such as those with 120 Hz, due to their typically lower operation frequencies, leading to increased manufacturing costs and a need for cost-effective solutions that maintain image quality.
Innovation Solution
A display device and control method that adjust the frame rates and vertical resolutions of multiple contents to a unified frame rate, allowing for efficient output at a higher frame rate than the device's operation frequency, using image processing units, a processor, and frame rate change units to mix and interpolate frames, while maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operation frequency of the display device is increased to 120 Hz or higher to reproduce high-frame-rate contents smoothly, then the content reproduction smoothness is improved, but the manufacturing cost increases
Solution Approach 1:
The patent changes the frame rate parameter of the content from its original high frame rate (e.g., 120 Hz) to a lower frame rate (e.g., 60 Hz) that matches the display device's operation frequency. This parameter transformation allows the content to be displayed smoothly on devices with lower operation frequencies, eliminating the need to increase hardware specifications and thereby reducing manufacturing costs while maintaining acceptable reproduction quality
Solution Approach 2:
The patent creates a copy of the high-frame-rate content at a reduced frame rate. By generating a version of the content adapted to the display device's operation frequency, the system can reproduce the content smoothly without requiring the display device to operate at higher frequencies, thus avoiding increased manufacturing costs
2Ease of manufacture
If the frame rate of the content is reduced to match the display device's operation frequency, then the manufacturing cost is reduced, but the content reproduction smoothness deteriorates
Solution Approach 1:
The patent performs preliminary frame rate conversion before the content is displayed. By pre-processing the content to match the display device's operation frequency, the system ensures smooth reproduction without requiring real-time high-frequency operation, thus maintaining cost-effectiveness while preserving reproduction quality
Solution Approach 2:
The patent transforms the frame rate parameter of the content to match the display device's operation frequency. This parameter adaptation allows the content to be reproduced smoothly on devices with lower operation frequencies, maintaining both manufacturing cost-effectiveness and reproduction smoothness
3Adaptability or versatility
If multiple contents are displayed simultaneously in multi-view mode, then the functionality is improved, but the frame rate consistency and display smoothness deteriorate
Solution Approach 1:
The patent applies a universal frame rate conversion process to multiple contents displayed simultaneously. By standardizing the frame rate of all contents to match the display device's operation frequency, the system ensures smooth display of multiple contents in multi-view mode without requiring different processing for each content, thus maintaining both functionality and display smoothness
Solution Approach 2:
The patent changes the frame rate parameter of multiple contents to a common value that matches the display device's operation frequency. This uniform parameter adjustment ensures that all contents, regardless of their original frame rates, are displayed smoothly and consistently in multi-view mode, maintaining display smoothness while providing versatile functionality
Data Source
AI summary
A display device comprising: a display panel to display a frame having a resolution up to a first frame rate; a plurality of image processing units; and a processor. The processor configured to, based on change from a first mode of displaying a content, among a plurality of modes of the display device, to a second mode of displaying plural contents, change frame rates of a plurality of contents output from the plurality of image processing units to a same frame rate, mix the plurality of contents with the frame rates changed to the same frame rate, and change a vertical resolution of the mixed content. The display panel is enabled to output the mixed content, at a second frame rate greater than the first frame rate.