Display Device with Melatonin-Control Pixel Unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices that control melatonin levels for improved productivity require a separate light source, increasing manufacturing costs and thickness, which affects competitiveness and efficiency.
Innovation Solution
A display device with a first pixel unit for image display and a second pixel unit emitting light with a peak wavelength band of 460 to 470 nm, formed in the same layer on a substrate, allowing independent driving and melatonin control without a separate light source, thereby enhancing productivity and competitiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate light source is added to control melatonin levels, then the melatonin control effect is improved, but the device thickness and manufacturing cost increase
Solution Approach 1:
The patent combines the melatonin control light source function with the existing display pixel structure. The second pixel unit, formed in the same layer as the first pixel unit, serves dual purposes: it can display images like the first pixel unit and emit light with peak wavelength of 460-470 nm to control melatonin secretion. This integration eliminates the need for a separate light source while maintaining the melatonin control effect.
Solution Approach 2:
The display device is designed with multi-functionality where the pixel units can operate in different modes. The second pixel unit can be independently driven to emit blue light for melatonin control, or work together with the first pixel unit for image display. This universal design allows a single structure to perform multiple functions, avoiding additional thickness from separate components.
2Reliability
If a separate light source is added to control melatonin levels, then the melatonin control effect is improved, but the manufacturing cost increases
Solution Approach 1:
The patent combines the melatonin control light source function with the existing display pixel structure. The second pixel unit, formed in the same layer as the first pixel unit, serves dual purposes: it can display images like the first pixel unit and emit light with peak wavelength of 460-470 nm to control melatonin secretion. This integration eliminates the need for a separate light source while maintaining the melatonin control effect.
Solution Approach 2:
The display device is designed with multi-functionality where the pixel units can operate in different modes. The second pixel unit can be independently driven to emit blue light for melatonin control, or work together with the first pixel unit for image display. This universal design allows a single structure to perform multiple functions, avoiding additional thickness from separate components.
3Length of stationary object
If the second pixel unit is formed in the same layer as the first pixel unit, then the device thickness is reduced, but the manufacturing complexity increases
Solution Approach 1:
The display area is segmented into a first display area with first pixel units and a second display area with second pixel units. This segmentation allows different regions to have different functions: the first area for image display and the second area for melatonin control. By dividing the display area, the patent manages complexity through functional zoning while keeping both pixel units in the same layer to maintain thinness.
Solution Approach 2:
Different regions of the display device have different local qualities and functions. The first pixel units are optimized for image display, while the second pixel units are optimized for emitting blue light to control melatonin. This local differentiation allows each region to be optimized for its specific function while maintaining overall device thinness through integrated layer structure.
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 solution achieves melatonin control without increasing the device's thickness, improving productivity and competitiveness by integrating the second pixel unit outside the first pixel unit, thus eliminating the need for a separate light source and maintaining product thinness.
Implementation Method 1
Each second pixel may include a narrow-band organic light emitting element (organic light emitting diode (OLED)) having a peak wavelength band of about 464 nm
Implementation Method 2
a narrow-band organic light emitting element (organic light emitting diode (OLED)) having a peak wavelength band of about 464 nm
Data Source
AI summary
Embodiments provide a display device including a first pixel unit and a second pixel unit. The first pixel unit may be formed on a first display area of a substrate so as to display an image. The second pixel unit may be formed on a second display area at the outside of the first display area and emit light with a peak wavelength band of about 460 to about 470 nm.