Dual Display Control for Proximity Triggered Power Management
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Solution Overview
Problem
Existing devices with touch panels and proximity sensors often unintentionally turn off the display unit when a finger or hand comes close to the proximity sensor, leading to unintended power consumption and user inconvenience.
Innovation Solution
A display control apparatus with a touch detection unit and a proximity detection unit that manages the state of two display units, ensuring the first display unit remains on while the second is turned off, even when the proximity sensor detects an object after a touch operation, thereby preventing unintentional shutdowns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the proximity sensor is used to detect object proximity and turn off the display unit, then power consumption is suppressed, but the display unit is unintentionally turned off when a finger or hand performs a touch operation
Solution Approach 1:
The system continuously monitors the state of both the proximity sensor and touch detection sensor, using feedback from both sources to make intelligent decisions about display unit operation. The control unit processes signals from both sensors to distinguish between genuine eye-access events and false triggers during touch operations, thereby maintaining reliable operation while managing power consumption.
Solution Approach 2:
The control unit acts as an intermediary that receives inputs from both the proximity detection sensor and touch detection sensor, processes these signals, and determines the appropriate action. This intermediary processing layer prevents direct coupling between the proximity sensor and display control, allowing the system to filter out false triggers while maintaining power management functionality.
2Loss of energy
If the proximity sensor detects object proximity, then the display unit is turned off to suppress power consumption, but user convenience deteriorates due to unintended shutdowns during touch operations
Solution Approach 1:
The system performs preliminary detection using both the proximity sensor and touch detection sensor before making the decision to turn off the display unit. By checking the state of the touch detection sensor in advance, the system can predict and prevent unintended shutdowns during touch operations, thereby maintaining user convenience while still managing power consumption during genuine eye-access events.
3Measurement precision
If the proximity sensor is placed close to the finder for eye access detection, then eye access detection accuracy is improved, but false detection of fingers or hands increases
Solution Approach 1:
The system merges the functionality of two sensors - the proximity detection sensor for eye access detection and the touch detection sensor for touch operation detection. By combining the detection capabilities of both sensors, the system achieves accurate eye access detection while simultaneously detecting and filtering out false triggers caused by fingers or hands near the finder.
Solution Approach 2:
The control unit continuously processes feedback from both sensors to distinguish between eye access events and false triggers. When the proximity sensor detects an object, the system checks the touch detection sensor state to determine whether the detected object is a user's eye (genuine event) or a finger/hand (false trigger), thereby reducing the false detection rate while maintaining detection accuracy.
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
Prevents the display unit from being unintentionally turned off, improving user experience and reducing power consumption by maintaining the touch panel unit on while allowing the EVF to turn on during intended eye access.
Implementation Method 1
a touch detection unit that detects a touch operation on a first display unit
Implementation Method 2
a proximity detection unit that detects object proximity
Data Source
AI summary
A display control apparatus includes: a touch detection unit that detects a touch operation on a first display unit; a proximity detection unit that detects object proximity; and a control unit that, when the first display unit is turned on and a second display unit is turned off, in response to object proximity being detected by the proximity detection unit before a touch operation is detected by the touch detection unit, turns off the first display unit and starts turning on the second display unit, and when the first display unit is turned on and a second display unit is turned off, in response to object proximity being detected by the proximity detection unit after a touch operation is detected by the touch detection unit and before a first predetermined time is exceeded, starts turning on the second display unit while maintaining the first display unit to be turned on.