Lenticular Display Viewer Tracking for Power-Efficient 3D Viewing
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Solution Overview
Problem
Existing electronic devices with displays struggle to efficiently provide three-dimensional content while conserving power and minimizing latency artifacts.
Innovation Solution
The electronic device incorporates a lenticular display with a lenticular lens film over an array of pixels, an eye and/or head tracking system, and control circuitry that enables stereoscopic viewing by determining the viewer's eye position and adjusting the display accordingly, including disabling unoccupied viewing zones and applying brightness profiles to conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all viewing zones are continuously activated to provide seamless 3D content, then viewing experience quality is improved, but power consumption increases
Solution Approach 1:
The display system dynamically adjusts the activation state of viewing zones based on real-time eye position tracking data. The control circuitry receives eye position information from the tracking system and selectively activates only those viewing zones corresponding to the viewer's current gaze location, transitioning zones between active and inactive states as eyes move across the display.
Solution Approach 2:
Different viewing zones are selectively activated or deactivated based on local eye position information. The system applies different operational states to different spatial regions of the display - occupied zones receive full activation while unoccupied zones are deactivated, creating localized quality adjustments that maintain overall viewing experience while reducing total power consumption.
2Use of energy by moving object
If viewing zones are rapidly activated and deactivated to follow eye movement, then power is conserved, but latency artifacts increase
Solution Approach 1:
The control circuitry anticipates eye movement by pre-activating viewing zones before the eyes actually reach them. By predicting future eye position based on current tracking data and activating zones in advance, the system eliminates latency artifacts that would otherwise occur when zones are activated after eye movement is detected.
Solution Approach 2:
The system compensates for potential viewing disruptions by maintaining a buffer of pre-activated zones adjacent to currently occupied zones. This cushioning approach ensures that if eye position estimation has slight inaccuracies or delays, viewers still experience continuous 3D content without noticeable artifacts or blackouts.
3Use of energy by moving object
If unoccupied viewing zones are disabled to conserve power, then energy efficiency is improved, but sharpness may be reduced at zone boundaries
Solution Approach 1:
The system applies different brightness levels to different spatial regions - occupied zones maintain full brightness for optimal sharpness, while unoccupied zones are completely deactivated for power savings. The boundary regions use intermediate brightness levels to create smooth transitions that prevent visible artifacts while maintaining acceptable sharpness.
Solution Approach 2:
The control circuitry dynamically adjusts the brightness parameter of viewing zones based on occupancy status. Occupied zones operate at 100% brightness, unoccupied zones are set to 0% brightness, and boundary zones use intermediate values. This parameter adjustment maintains image sharpness in active regions while enabling power conservation in inactive regions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables efficient power conservation while maintaining a seamless three-dimensional viewing experience by dynamically adjusting the display based on the viewer's position, reducing latency artifacts and improving sharpness.
Implementation Method 1
A plurality of lenticular lenses may extend across the length of the display. The lenticular lenses may be configured to enable stereoscopic viewing of the display
Implementation Method 2
The eye and/or head tracking system uses a camera to capture images of a viewer of the display. The capture images may be used to determine a viewer's eye position
Data Source
AI summary
An electronic device may include a lenticular display. The lenticular display may have a lenticular lens film formed over an array of pixels. The lenticular lenses may be configured to enable stereoscopic viewing of the display such that a viewer perceives three-dimensional images. The display may have a number of independently controllable viewing zones. A eye and/or head tracking system may use a camera to capture images of a viewer of the display. Control circuitry in the electronic device may use the captured images from the eye and/or head tracking system to determine which viewing zones are occupied by the viewer's eyes. The control circuitry may disable or dim viewing zones that are not occupied by the viewer's eyes in order to conserve power. An unoccupied viewing zone and an adjacent, occupied viewing zone may display the same image to increase sharpness in the display.