Display Apparatus Shadow Effect via Light Source Position Detection
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Solution Overview
Problem
Conventional display apparatuses face challenges in accurately determining the position of light sources around them, especially when multiple light sources are present or there are obstacles, which complicates the provision of shadow effects for content display, increasing manufacturing costs and reducing user experience.
Innovation Solution
A display apparatus comprising a processor, memory, and display unit that receives light source position information through a user interface, determines shadow images based on this information, and displays content with shadow effects without the need for additional sensor devices, utilizing external information like time and weather to enhance user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single illuminance sensor is used to recognize a light source, then the device complexity is reduced, but the measurement precision of light source position and direction is insufficient
Solution Approach 1:
The patent introduces a camera as an intermediary device to capture images of light sources. The camera system, combined with image processing algorithms, serves as a mediator to determine light source positions and directions without requiring complex sensor arrays. This intermediary approach enables precise measurement while maintaining relatively simple device architecture.
Solution Approach 2:
The patent replaces traditional mechanical sensor-based light detection systems with an optical imaging system using a camera. Instead of using multiple illuminance sensors to mechanically determine light source positions, the system uses image capture and processing to achieve the same function with fewer components and lower complexity.
2Measurement precision
If multiple illuminance sensors are used to recognize light source position, then the measurement precision improves, but the manufacturing cost increases
Solution Approach 1:
The patent uses a camera to capture visual copies (images) of light sources in the environment. By processing these visual copies through image recognition algorithms, the system determines light source positions and directions. This copying approach replaces the need for multiple expensive illuminance sensors, achieving comparable measurement precision at lower manufacturing cost.
Solution Approach 2:
The patent substitutes mechanical sensor-based detection with optical imaging and computational processing. Instead of using multiple illuminance sensors that increase manufacturing complexity and cost, the system uses a single camera and image processing algorithms to achieve the same measurement objectives more economically.
3Measurement precision
If multiple illuminance sensors are used to estimate light source direction, then the measurement precision improves, but it becomes difficult to estimate direction when obstacles are present
Solution Approach 1:
The camera serves as an intermediary that can visually detect light sources and their positions in the environment. Image processing algorithms analyze the captured images to determine light source directions, providing adaptability to various environmental conditions including the presence of obstacles, which cannot be detected by traditional illuminance sensors alone.
Solution Approach 2:
By capturing visual copies of the environment through the camera, the system creates a digital representation that can be processed to identify light source positions and directions. This visual copying mechanism provides versatility in handling different environmental scenarios, including situations with obstacles, by analyzing the visual information directly rather than relying on sensor signals that may be blocked.
Data Source
AI summary
Provided are a display apparatus and a method of displaying content. The display apparatus is capable of obtaining information about a light source around the display apparatus and providing a shadow effect on content to be displayed. The display apparatus may include a processor, a memory connected to the processor, and a display unit. The processor may be configured to receive light source position information about a position of a light source in a space where the display apparatus is located, determine a shadow image for content based on the light source position information, and display the content and the shadow image on the display unit.