Rotating Display Panel Current Layout for Uniform 3D Brightness
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Solution Overview
Problem
Existing three-dimensional display devices suffer from uneven brightness due to differences in rotational speed, leading to non-uniform display effects, and current solutions either require structural changes or complex algorithm adjustments.
Innovation Solution
A display device design where the display panel rotates around a rotation axis, featuring a light emitting layer and a driving device layer with varying driving currents and densities of light emitting devices, adjusted to compensate for rotational speed differences, ensuring uniform brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display panel rotates around a rotation axis to form a cylindrical display space, then a three-dimensional display effect is achieved, but the brightness becomes uneven with higher brightness near the rotating axis
Solution Approach 1:
The patent applies local quality by differentiating the driving currents for light emitting devices at different radial positions. Devices closer to the rotation axis receive smaller driving currents, while devices farther away receive larger driving currents. This localized adjustment compensates for the rotational speed differences and achieves uniform brightness across the display panel.
Solution Approach 2:
The patent changes the driving current parameter based on the radial position of light emitting devices. By adjusting the driving current magnitude according to distance from the rotation axis, the system compensates for the varying linear speeds during rotation and maintains consistent brightness throughout the display area.
2Manufacturing precision
If the driving current is increased for light emitting devices farther from the rotation axis, then brightness uniformity is improved, but the overall energy consumption increases
Solution Approach 1:
Instead of uniformly increasing driving current across all devices, the patent applies local quality by selectively increasing current only for devices farther from the rotation axis that require it for brightness uniformity, while maintaining lower current for devices near the axis.
Solution Approach 2:
The patent implements partial action by applying current compensation only where necessary (at specific radial distances from the axis) rather than uniformly across the entire display panel, thereby achieving brightness uniformity with minimized energy consumption.
Data Source
AI summary
The present application discloses a display device, including a display panel rotating around a rotation axis. The display panel includes a plurality of driving thin-film transistors arranged along a first direction, and a driving thin film transistor group includes at least two driving thin film transistors. The driving thin film transistors are used to control the corresponding light emitting device to emit light. A current of each driving thin film transistor in the driving thin film transistor group close to the rotation axis is smaller than a current of each driving thin film transistor in the driving thin film transistor group away from the rotating axis.