Flexible Display Power Management via Region Segmentation
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Solution Overview
Problem
Large-screen display devices offer high browsability but compromise on portability, power efficiency, and display quality due to higher power consumption and potential display unevenness caused by light-emitting element deterioration.
Innovation Solution
A data processing device with a flexible display portion, peripheral driver circuit portions, a sensor for external state detection, and a program that adjusts power consumption and degradation correction based on modes (unfolded or folded states) to minimize power usage and display irregularities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display portion is made large to improve browsability, then the display area increases, but power consumption increases and portability deteriorates
Solution Approach 1:
The display portion is divided into multiple independently controllable regions (first display region and second display region). The controller can selectively activate or deactivate specific regions based on usage mode, allowing the large display to be segmented into active and inactive portions to reduce power consumption when the entire display area is not needed.
Solution Approach 2:
The display device transitions between different operational states (first mode with both regions active, second mode with only first region active, third mode with neither region active). This dynamic switching of display regions allows the system to adapt power consumption to actual usage requirements, maintaining browsability when needed while saving power during portability or idle states.
2Area of stationary object
If the display portion is made large to improve browsability, then the display area increases, but portability deteriorates
Solution Approach 1:
The display device can dynamically change its effective display area by activating or deactivating specific regions. When portability is prioritized, the system can deactivate the second display region, effectively reducing the active display area and making the device more portable while maintaining essential display functionality through the first display region.
3Adaptability or versatility
If different emission intensity or emission time is applied to different pixels, then display adaptability improves, but display unevenness occurs due to light-emitting element deterioration
Solution Approach 1:
The display is divided into distinct regions (first and second display regions) that can be independently controlled. By applying different emission patterns to different regions and using degradation correction processing tailored to each region's usage characteristics, the system maintains display adaptability while compensating for localized deterioration effects in each region.
Solution Approach 2:
The controller implements degradation correction processing that monitors and adjusts emission parameters based on the accumulated usage of each display region. This feedback mechanism detects deterioration trends in light-emitting elements and compensates by adjusting emission intensity or timing, thereby maintaining display quality despite differential usage patterns across regions.
Data Source
AI summary
To provide a highly browsable data processing device, provide a highly portable data processing device, provide a data processing device which consumes low power, or provide a data processing device having high display quality, the data processing device includes a display portion having flexibility, a plurality of driver circuit portions arranged in the periphery of the display portion, a sensor portion discerning an external state of the display portion, an arithmetic portion supplying image data to the driver circuit portions, and a memory portion storing a program executed by the arithmetic portion. A first mode in which the display portion is unfolded or a second mode in which the display portion is folded is sensed by the sensor. Low power consumption processing and degradation correction processing are carried out by the program in accordance with the first mode or the second mode.