Display Apparatus Eye Direction Screen Area Control
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Solution Overview
Problem
Current display apparatuses lack the ability to selectively execute functions based on a user's eye direction and do not differentiate between areas the user is looking at and those they are not, leading to potential malfunctions.
Innovation Solution
A display apparatus with an eye direction sensor that divides the screen into multiple areas, performing specific control operations only when a touch input is detected in the area the user is looking at, while ignoring inputs from areas the user is not focusing on, using a combination of touch sensors, eye direction detection, and infrared output for precise eye tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display apparatus executes functions based on touch inputs from any area of the screen, then the ease of operation is improved, but the reliability deteriorates due to potential malfunctions from unintended inputs
Solution Approach 1:
The patent applies local quality by making the touch sensitivity and function execution capability different across different areas of the screen. Specifically, the screen is divided into a first area (where the user is looking) and other areas (where the user is not looking), with different touch input response characteristics assigned to each area. This allows the system to maintain ease of operation in the focused area while preventing unintended inputs in non-focused areas, thus resolving the contradiction between ease of operation and reliability.
2Productivity
If the display apparatus uses eye tracking to control all touch inputs, then the productivity is improved through faster interaction, but the device complexity increases due to additional sensors and processing
Solution Approach 1:
The patent applies segmentation by dividing the screen into multiple areas based on eye tracking data, specifically separating the area where the user is looking (first area) from other areas. This segmentation allows the system to apply different control logic to different regions, enabling productivity improvement through eye-guided interaction while limiting the complexity increase to only the necessary eye tracking components and area division logic, rather than requiring complex control mechanisms for the entire system.
3Measurement precision
If the display apparatus divides the screen into multiple areas for eye tracking, then the measurement precision of eye direction is improved, but the device complexity increases due to additional sensing and processing components
Solution Approach 1:
The patent applies partial action by implementing eye tracking functionality only for the purpose of determining which area of the screen the user is looking at, rather than implementing full eye tracking capabilities for all possible applications. The system divides the screen into areas and uses eye direction sensing only to identify which area is being viewed, which is sufficient for the intended function. This approach improves measurement precision for the specific purpose of area identification while avoiding the complexity of comprehensive eye tracking systems.
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 malfunctions by ensuring that only intended functions are executed based on the user's gaze direction, enhancing user interaction and control precision by activating functions only when the user is actively looking at specific areas of the screen.
Implementation Method 1
an infrared output unit configured to output infrared rays in a user direction
Implementation Method 2
an imaging unit configured to perform image capturing with respect to a user to generate a captured image
Implementation Method 3
The eye direction sensor may detect a pupil, an iris, and a glint area generated by the infrared rays from the captured image and sense the eye direction of the user based on a position relation between the pupil, the iris, and the glint area
Data Source
AI summary
A display apparatus is provided. The display apparatus includes: a display unit; a sensor configured to sense a touch input into the display unit; an eye direction sensor configured to sense an eye direction of a user; and a controller configured to divide a screen of the display unit into a plurality of areas, in response to an eye of the user being sensed toward a first area of the plurality of areas and a first touch input being sensed into the first area, perform a first control operation corresponding to the first touch input, and in response to a second touch input being sensed into the other areas except the first area, not perform a second control operation corresponding to the second touch input. Therefore, whether a function will be executed is determined according to an area in which an eye of a user is sensed and an area in which the eye of the user is not sensed. As a result, a malfunction of a display apparatus is prevented.