Shutter Portion for Afterimage Correction in Display Devices
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Solution Overview
Problem
Display devices experience undesirable afterimage correction patterns that are perceivable by users during the afterimage correction process, which occurs when the device is powered off.
Innovation Solution
Incorporating a shutter portion, such as an electro wetting display (EWD) or liquid crystal display (LCD), that selectively blocks light over the afterimage correction patterns generated by photo sensors, preventing users from viewing these patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If afterimage correction is performed using photo sensors, then afterimage quality is improved, but visible correction patterns are generated that degrade user experience
Solution Approach 1:
A shutter portion is introduced as an intermediary component between the display portion and the user. This shutter selectively blocks light from areas where correction patterns are generated, preventing these patterns from reaching the user's eyes while allowing the photo sensor to continue its correction function uninterrupted.
Solution Approach 2:
The shutter is designed to selectively block light only in specific regions where correction patterns are generated, rather than blocking light uniformly across the entire display. This localized approach maintains afterimage correction quality in unaffected areas while hiding patterns only where necessary.
2Object-affected harmful factors
If a shutter portion is added to block correction patterns, then user perception is improved, but device complexity increases
Solution Approach 1:
The shutter portion serves multiple functions: it blocks visible correction patterns from reaching users, allows photo sensors to continue correcting afterimages, and can be integrated into existing display structures. This multi-functionality justifies the added complexity by delivering multiple benefits from a single component.
Solution Approach 2:
The shutter is implemented as a thin film or flexible structure that can be integrated into the display assembly without adding significant bulk or rigidity. This approach minimizes the physical complexity added to the device while maintaining the light-blocking function.
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
The shutter portion effectively reduces or eliminates the perception of afterimage correction patterns by either entirely covering or selectively masking the affected areas of the display, ensuring a clear image even during afterimage correction.
Implementation Method 1
a shutter positioned and configured to selectively block light over an afterimage correction pattern generated by the correction of the afterimage
Implementation Method 2
the shutter may include an electro wetting display (EWD)
Implementation Method 3
the shutter may include a liquid crystal display
Data Source
AI summary
Provided is a display device. The display device includes a display portion configured to display an image, a photo sensor electrically connected to the display portion and configured to facilitate correction of an afterimage of the display portion; and a shutter portion disposed on the display portion and comprising a shutter positioned and configured to selectively block light over an afterimage correction pattern generated by the correction of the afterimage facilitated by the photo sensor, so as to selectively prevent a user from viewing a portion of the display portion upon which the afterimage correction pattern occurs.