Portable Game Console Dual Screen Touch Input 3D Rendering
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Solution Overview
Problem
Portable handheld game devices lack dual screen functionality combined with touch-sensitive technology, limiting interactive experiences.
Innovation Solution
A portable handheld game device with a unique console configuration featuring twin backlit LCD screens, one of which is touch-sensitive, and a single three-dimensional image processing unit capable of displaying different three-dimensional images on both screens without flicker, using a combination of hardware and software to manage image processing between two-dimensional and three-dimensional image units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single three-dimensional image processing unit is used to display different three-dimensional images on two screens simultaneously, then device complexity is reduced, but display quality and flicker prevention become challenging
Solution Approach 1:
The patent divides the display output into two separate buffers (first buffer and second buffer) that are alternately filled by the single three-dimensional image processing unit. This segmentation allows the processor to generate different 3D images for each screen in alternating time slots, preventing flicker while maintaining device simplicity.
Solution Approach 2:
The system employs periodic action by alternately switching between two display buffers in a cyclic manner. The image processing unit fills the first buffer for the first display screen during one time period, then fills the second buffer for the second display screen during the next time period, creating a periodic refresh cycle that eliminates flicker while using a single processing unit.
2Adaptability or versatility
If dual screen functionality with touch-sensitive technology is added, then interactive experience is enhanced, but device complexity increases
Solution Approach 1:
The patent implements universality by making one of the two display screens serve multiple functions: it acts as both a standard three-dimensional display and a touch-sensitive input device. This allows the device to provide enhanced interactive capabilities through touch input while still using the same display hardware, thereby increasing adaptability without proportionally increasing device complexity.
Solution Approach 2:
The system merges the display function and touch input function into a single integrated screen unit. By combining these two functions in one component rather than adding separate input devices, the patent enhances interactivity while minimizing the increase in overall device complexity.
3Productivity
If different three-dimensional images are displayed on two screens simultaneously using a single processing unit, then productivity is improved, but image processing quality may deteriorate
Solution Approach 1:
The patent applies preliminary action by pre-allocating two separate display buffers before image processing begins. The system prepares the first buffer for the first screen and the second buffer for the second screen in advance, allowing the single three-dimensional image processing unit to efficiently process and fill each buffer during its designated time slot without compromising image quality or processing efficiency.
Data Source
AI summary
A portable game system includes two display screens, at least one of which is touch-sensitive. A memory card is selectively connectable to the portable game system.