Stacked Display Light Shielding for Drive Circuit Reflection
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Solution Overview
Problem
The provision of an outer frame to suppress light reflection in display devices increases manufacturing costs and component count, deteriorating image quality and immersion effects.
Innovation Solution
A stacked structure with first and second substrates and light shielding films on both substrates to cover the drive circuit unit, eliminating the need for an outer frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an outer frame is provided to surround the drive circuit unit, then light reflection is suppressed, but the number of components and manufacturing cost increase
Solution Approach 1:
The invention transitions from a two-dimensional outer frame structure to a three-dimensional light shielding film structure that covers the drive circuit unit from multiple surfaces (top, bottom, and sides), effectively blocking light reflection paths without requiring an additional outer frame component
Solution Approach 2:
The invention extracts the light shielding function from the outer frame structure and implements it through dedicated light shielding films positioned directly over the drive circuit unit, separating the shielding function from the structural frame
2Object-affected harmful factors
If an outer frame is provided to surround the drive circuit unit, then light reflection is suppressed, but manufacturing cost increases
Solution Approach 1:
The invention merges the light shielding function with the existing substrate structure by forming light shielding films directly on the first and second substrates, eliminating the need for a separate outer frame component and reducing overall manufacturing complexity and cost
3Object-affected harmful factors
If light shielding films are provided on both substrates, then light reflection is suppressed, but device structure becomes more complex
Solution Approach 1:
The invention utilizes the third dimension (stacking direction) by placing light shielding films on both the first substrate and second substrate, creating a multi-layer light blocking structure that suppresses reflection from multiple angles without increasing planar complexity
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 configuration effectively suppresses light reflection on the drive circuit unit while reducing manufacturing costs and ensuring reliable sealing without peeling or moisture ingress.
Implementation Method 1
a light shielding structure including a first light shielding film that covers at least a part of the drive circuit unit and a second light shielding film that covers at least a part of a region facing the drive circuit unit
Data Source
AI summary
There is provided a display device including a stacked structure in which a first substrate having a display unit including a plurality of light emitting elements and a drive circuit unit provided around the display unit, and a second substrate that transmits light from the plurality of light emitting elements are stacked on each other, and a light shielding structure including a first light shielding film that covers at least a part of the drive circuit unit and a second light shielding film that covers at least a part of a region facing the drive circuit unit on a surface of the second substrate facing the first substrate.