Shutter Control for Selective 3D Content Viewing
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Solution Overview
Problem
Existing 3D reproduction apparatuses impose inconvenient parental controls, requiring adults to view content in restricted mode even when watching with children who do not meet the age requirements, limiting simultaneous enjoyment of content between adults and children.
Innovation Solution
An image display apparatus with a shutter device that includes shutters for the right and left eyes, a light-source control unit, and a shutter control unit, which adjusts the light source intensity and shutter operation to differentiate between limited and unlimited content, allowing adults to view restricted content while preventing children from doing so by controlling the shutter device's opening and closing based on viewing limitation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If viewing limitation mode is applied to prevent children from viewing restricted content, then content protection is improved, but adult viewing convenience deteriorates because adults must also comply with viewing limitations
Solution Approach 1:
The patent applies different shutter control strategies to different users based on their age groups. Children's shutter devices are controlled to close during the first period (lighting period) to prevent viewing of restricted content, while adult shutter devices are controlled to open during the first period to maintain viewing convenience. This local differentiation resolves the contradiction by tailoring the viewing experience to each user's needs.
Solution Approach 2:
The patent segments the viewing population into children and adults, applying different control rules to each segment. The shutter control unit receives user identification information and applies age-group-specific control strategies, thereby protecting children from restricted content while preserving adult viewing freedom.
2Reliability
If shutter is closed during first period to prevent child viewing, then content restriction is improved, but light emission efficiency deteriorates due to unnecessary light blocking
Solution Approach 1:
The patent applies selective shutter control based on user identity. When a child is identified, the shutter closes during the first period to prevent viewing of restricted content. When an adult is identified, the shutter remains open during the first period, allowing efficient light emission and viewing without unnecessary blocking.
3Adaptability or versatility
If viewing limitation mode is set for children, then parental control is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The patent implements a universal parental control system that works across multiple shutter devices. The control unit receives user identification information and automatically applies appropriate control strategies without requiring complex manual configuration for each device, thereby achieving versatile parental control with manageable system complexity.
Data Source
AI summary
An image display apparatus includes an image display unit that displays an image for a stereoscopic image, a light-source control unit that controls a light source of the image display unit, a content discriminating unit that discriminates whether the image displayed on the image display unit is a limited image requiring viewing limitation or an unlimited image not requiring the viewing limitation, and a shutter control unit that controls shutter of shutter devices. The light-source control unit controls the light source to reduce light emission in a second period compared with light emission in a first period. The shutter control unit controls, during the display of the limited image, the shutter device set in a viewing limitation mode for limiting viewing of the limited image, to close the shutter in the first period and open the shutter in the second period.