Rotary Display Dynamic Refresh Rate Control

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Solution Overview

Problem

Rotary display devices face challenges in processing large amounts of data due to limited data processing capabilities, making it difficult to display images at high refresh rates, which affects the display effect and user experience.

Innovation Solution

A rotary display device with a display module, rotating shaft, transmission apparatus, acquisition apparatus, and control apparatus that adjusts refresh rate and color depth dynamically based on the presence of a user, reducing data processing workload by controlling the display in different conditions depending on whether a user is detected within the sweep space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the display module operates at high refresh rate and high color depth, then the display effect is improved, but the data processing workload increases

Engineering Contradiction:
Improvedisplay effectVSAvoiddata processing workload
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent implements dynamic adjustment of display parameters (refresh rate and color depth) based on real-time user detection. When a user is detected in the sweep space, the system switches to high refresh rate and high color depth modes for optimal display effect. When no user is present, the system reduces to low refresh rate and low color depth modes, significantly reducing data processing workload and power consumption.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the display module rotates continuously at preset speed, then the sweep space is covered, but power consumption increases

Engineering Contradiction:
Improvesweep space coverageVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent employs periodic user detection through image acquisition and face recognition algorithms. The display module alternates between different operating states based on detection results: when users are detected, high-performance display modes are activated; when no users are present, the system enters low-power mode with reduced refresh rates and color depths, thereby covering the sweep space effectively while managing power consumption.

Inventive Principle:
Principle #19Periodic action

3Manufacturing precision

If the control apparatus processes all image data at high quality, then the display quality is improved, but the processing time increases

Engineering Contradiction:
Improvedisplay qualityVSAvoidprocessing time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent applies different processing qualities to different spatial and temporal regions. When users are detected within the sweep space, high-quality image processing is applied only during the periods when the display module is positioned in the user's viewing area. During other periods or when no users are present, lower-quality processing suffices, reducing overall processing time while maintaining display quality where it matters most.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11805239B2Rotary display device and control method therefor, and rotary display system
Publication Date: 2023.10.31 BEIJING BOE OPTOELECTRONCIS TECH CO LTD
  • US11805239B2 patent drawing
  • US11805239B2 patent drawing
  • US11805239B2 patent drawing

AI summary

A rotary display device includes a display module, a rotating shaft, a transmission apparatus, an acquisition apparatus and a control apparatus. The transmission apparatus is configured to drive the display module to rotate with the rotating shaft. The control apparatus is configured to: receive information of picture(s), acquired by the acquisition apparatus, of an outside of the display module and determine whether a picture includes face figure(s); if no face figure is included in the picture, control the display module to display images in a first condition; if the face figure(s) are included in the picture, control the display module to display images in a second condition. A second refresh rate in the second condition is greater than a first refresh rate in the first condition, and a second color depth in the second condition is greater than a first color depth in the first condition.