Display Device Light Signal Encoding for Screen Space Saving
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Solution Overview
Problem
Displaying two-dimensional codes on screens occupies screen area, reducing available space and affecting user experience, as users need to scan codes to access additional information, which can be cumbersome and distracting.
Innovation Solution
An image display method that determines a code corresponding to an image by extracting macroblock information, replacing pixel values or extracting image feature information, and outputs a light signal corresponding to the code, allowing users to capture and decode this signal using a terminal to access additional information without occupying screen space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a two-dimensional code is displayed on the display screen to provide related information, then the user can access additional information by scanning the code, but the code occupies screen area and reduces the area available for displaying other contents
Solution Approach 1:
The patent transfers information transmission from the two-dimensional screen plane to the temporal dimension by using light signals emitted from the backlight assembly. The code is encoded in the light signal that can be captured by a camera over time, effectively moving the information carrier from spatial occupation to temporal transmission.
Solution Approach 2:
The patent introduces a light signal as an intermediary carrier between the display device and the user's terminal. Instead of displaying the code directly on the screen, the code is transmitted through light signals emitted by the backlight, which can then be captured by a camera without occupying screen space.
2Loss of information
If a two-dimensional code is displayed on the display screen, then related information can be provided to the user, but it affects the user viewing the screen by reducing display area
Solution Approach 1:
The patent moves information transmission from the visual display plane to the optical signal domain. The code is transmitted through light intensity variations that can be captured by a camera, allowing users to access information without visual distraction on the screen.
Solution Approach 2:
The patent creates an optical copy of the code information in the form of light signals emitted by the backlight assembly. This light signal copy contains the same information as a displayed code would, but can be captured by a camera without requiring screen space.
3Area of stationary object
If the display device outputs a light signal corresponding to the code, then users can capture and decode the signal using a terminal without occupying screen space, but the system complexity increases
Solution Approach 1:
The patent makes the backlight assembly multi-functional by enabling it to both illuminate the display panel and transmit coded information through light signals. This eliminates the need for separate components for illumination and information transmission, reducing overall system complexity.
Solution Approach 2:
The patent merges the illumination function and information transmission function into a single component - the backlight assembly. By combining these functions, the patent avoids adding separate hardware components that would increase system complexity.
Data Source
AI summary
An image display method includes: obtaining an image to be displayed in an object to be played; determining a code corresponding to the image to be displayed; and controlling a display device to play the object to be played and output a light signal corresponding to the code when the image to be displayed is displayed.