Multi-Segment Protocol for Foldable Display Image Control
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Solution Overview
Problem
Foldable displays face challenges in efficiently managing multiple segments and power consumption during folding operations, leading to incomplete image display and suboptimal user experience due to the limitations of existing multi-single stream transport (MSO) operations and display interface configurations.
Innovation Solution
A multi-segment protocol (MSP) is introduced to control images on foldable displays with two folds and three segments, utilizing MSO enabled on display interface ports like eDP or DP, and MIPI interfaces, which adjusts image aspect ratios and utilizes sensors to optimize image rendering across various operational modes, including folding and rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple segments are used in foldable displays to reduce cost, then device complexity is reduced, but image display completeness deteriorates due to limitations of existing multi-single stream transport operations
Solution Approach 1:
The display interface is divided into multiple independent segments, each capable of receiving and displaying image data separately. The system includes a first segment and a second segment, with each segment having its own data reception and display capabilities. This segmentation allows the display to maintain complete image information across multiple physical segments while reducing overall device complexity through modular architecture.
2Ease of manufacture
If existing display interface configurations are used, then ease of manufacture is maintained, but power consumption increases during folding operations
Solution Approach 1:
The display interface dynamically adjusts its operation based on the folding state. The system detects fold events and automatically configures which segments are active and how data is distributed. During folding operations, the interface can deactivate certain segments or reduce their refresh rates, significantly lowering power consumption while maintaining ease of manufacture through software-controlled adaptability rather than hardware changes.
3Ease of operation
If standard multi-segment protocols are used, then ease of operation is maintained, but user experience deteriorates due to incomplete image display
Solution Approach 1:
The system incorporates fold event detection mechanisms that provide real-time feedback about the physical state of the foldable display. This feedback is used to automatically adjust image rendering and data distribution across segments. The feedback loop ensures that images are always displayed completely and correctly regardless of folding state, dramatically improving user experience while maintaining ease of operation through automatic adaptation.
Solution Approach 2:
The display system dynamically changes operational parameters such as data routing configurations, segment activation states, and image rendering settings based on detected fold events. By adjusting these parameters in response to physical state changes, the system ensures complete and accurate image display across all folding configurations without requiring complex user intervention.
4Device complexity
If fixed display interface configurations are used, then device complexity is reduced, but adaptability deteriorates across different folding modes and orientations
Solution Approach 1:
The display interface is designed with universal capabilities to handle multiple operational modes and orientations through a single unified system. The same interface hardware and protocol can accommodate various folding configurations, rotation states, and display modes by dynamically reconfiguring data flow and segment activation. This multi-functionality provides high adaptability across different usage scenarios while avoiding the complexity of multiple dedicated interfaces for each mode.
Data Source
AI summary
A processing unit, comprising a display interface to control a foldable display with multiple segments created by fold lines in the foldable display. The processing unit also including a plurality of lanes to connect the display interface to the foldable display, where each segment of the foldable display is connected to a lane. The processing unit also including a multi-segment protocol component to instruct the display interface to drive data to each segment of the display through the plurality of lanes.