Display Sub-Pixel Reflective Electrode and Light Blocking Member Integration
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Solution Overview
Problem
The existing display device manufacturing processes are complex and costly, and there is a need for improved external visibility, particularly in terms of light reflectivity and simplified fabrication steps.
Innovation Solution
A display device design featuring sub-pixels with a reflective electrode and a light blocking member, where the reflective electrode is formed from a second conductive pattern layer, and the light blocking member includes a first and second light blocking member with different widths, positioned between and within sub-pixel areas to control light emission and external light reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional manufacturing process is used for display devices, then the manufacturing precision and reliability are maintained, but the process complexity and cost increase
Solution Approach 1:
The patent merges the reflective electrode and light blocking member into a single integrated structure formed by a single conductive pattern layer. This integration reduces the number of separate manufacturing steps while maintaining the functional performance of both components, directly addressing the contradiction between manufacturing simplicity and device complexity
Solution Approach 2:
The conductive pattern layer serves multiple functions simultaneously: it acts as both the reflective electrode for light emission enhancement and the light blocking member for controlling light reflection. This multi-functionality reduces the overall device complexity and simplifies the manufacturing process by eliminating the need for separate components
2Illumination intensity
If external light reflectivity is increased to improve visibility, then external visibility improves, but light reflection interference increases
Solution Approach 1:
The patent applies different properties to different regions of the conductive pattern layer. The first light blocking member has a different width than the second light blocking member, creating local variations in light blocking capability. This allows selective control of light reflection in different areas, improving external visibility while minimizing reflection interference in specific directions
Solution Approach 2:
The patent converts potentially harmful light reflection into a beneficial effect by using the reflective electrode to deliberately reflect light in controlled directions. The light blocking members then manage this reflected light to enhance visibility from desired viewing angles while suppressing reflections from unwanted directions, turning a harmful factor into a useful feature
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
This design enhances light output efficiency, reduces production costs by simplifying the manufacturing process, and improves external visibility by effectively managing light reflection and absorption, thereby enhancing the display device's performance and user experience.
Implementation Method 1
a reflective electrode overlapping the sub-pixel areas
Implementation Method 2
the light blocking member may include a light absorbent material
Data Source
AI summary
A display device is disclosed that includes sub-pixels forming respective sub-pixel areas. Each of the sub-pixels may include: a display part; a sensor part disposed on the display part, and including a reflective electrode overlapping the sub-pixel areas; and an outer part disposed on the sensor part, and including a light blocking member overlapping the reflective electrode.