Display Refresh Rate Transition via Ambient Light Thresholds

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Display components in computing devices face issues with visual flicker when switching between 60 Hz and 90 Hz refresh rates, especially at low brightness settings or in low ambient light environments, which negatively impacts user experience.

Innovation Solution

The display component dynamically adjusts its brightness transition threshold based on ambient light measurements, allowing transitions between 60 Hz and 90 Hz refresh rates only when the current brightness meets or exceeds the dynamically set threshold, and also adjusts the idle time at higher ambient light levels to minimize flickering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the display component operates at higher refresh rates (90 Hz), then user experience is improved, but power consumption increases

Engineering Contradiction:
Improveuser experienceVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The display component dynamically adjusts its refresh rate between 60 Hz and 90 Hz based on environmental conditions (ambient light level and current brightness). The system transitions to 90 Hz when ambient light is high and brightness is high, and switches to 60 Hz when ambient light is low or brightness is low, optimizing both user experience and power consumption in real-time.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the display component transitions between 60 Hz and 90 Hz refresh rates, then adaptability to different applications is improved, but visual flicker occurs

Engineering Contradiction:
Improveadaptability to different applicationsVSAvoidvisual flicker
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system changes the refresh rate parameter dynamically based on environmental conditions. By using ambient light sensors and brightness thresholds, the system determines when to switch between 60 Hz and 90 Hz, ensuring smooth transitions that minimize visual flicker while maintaining adaptability to different usage scenarios.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the display component operates at 90 Hz in low ambient light environments, then user experience is improved, but visual flicker increases

Engineering Contradiction:
Improveuser experienceVSAvoidvisual flicker
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system adjusts the refresh rate parameter based on ambient light conditions. When ambient light is low, the system switches to 60 Hz to minimize visible flicker, as human eyes are more sensitive to refresh rate changes in dark environments. When ambient light is high, the system can operate at 90 Hz without noticeable flicker, providing better user experience.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12277883B2Seamless transition for multiple display refresh rates
Publication Date: 2025.04.15 GOOGLE LLC
  • US12277883B2 patent drawing
  • US12277883B2 patent drawing
  • US12277883B2 patent drawing

AI summary

An example device includes a display component that is configured to operate at a first refresh rate or a second refresh rate. The device also includes one or more processors operable to perform operations. The operations include identifying a rate change triggering event while the display component is operating at the first refresh rate. The operations further include determining a current brightness value of the display component. The operations also include determining, based on an environmental state measurement associated with an environment around the device, a threshold brightness value. The operations additionally include transitioning the display component from the first refresh rate to the second refresh rate m response to identifying the rate change triggering event if the current brightness value of the display component meets or exceeds the threshold brightness value.