Display Panel Sealing Structure for Peripheral Light Blocking
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Solution Overview
Problem
Conventional display units without outer frames face challenges in widening the video display surface while reducing the outer shape size, leading to image quality degradation due to light entry from the periphery and uncured photocurable resin entering the light-blocking region.
Innovation Solution
A layered structure with a first substrate containing light-emitting elements and a second substrate with a light-blocking member, using a photocurable resin in the pixel region and a thermosetting resin in the light-blocking region, and incorporating a protrusion structure made of transparent or semitransparent material to prevent photocurable resin from entering the light-blocking region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the outer frame is removed to widen the video display surface, then the display area is increased, but light enters from the periphery causing image quality degradation
Solution Approach 1:
The display unit is segmented into a pixel region and a light-blocking region, with the light-blocking region divided into a first light-blocking region and a second light-blocking region. This segmentation allows the video display surface to be maximized while peripheral light is blocked by the divided light-blocking regions, resolving the contradiction between display area and light intrusion prevention.
Solution Approach 2:
Different regions of the display unit are assigned different functional qualities: the pixel region is optimized for light transmission and display, while the light-blocking regions are optimized for light obstruction. The first sealant region and second sealant region are also differentiated, with the second sealant region specifically designed to prevent uncured resin from entering the light-blocking region. This local differentiation resolves the contradiction by allowing each region to perform its specific function optimally.
2Reliability
If photocurable resin is used to seal the pixel region, then sealing effectiveness is improved, but uncured resin may enter the light-blocking region
Solution Approach 1:
A first sealant region is introduced as an intermediary between the pixel region and the light-blocking region. This first sealant region, filled with photocurable resin, acts as a barrier that prevents uncured resin from migrating into the light-blocking region during the curing process. The second sealant region provides additional sealing. This intermediary structure resolves the contradiction by maintaining sealing effectiveness while blocking the harmful migration of uncured resin.
3Reliability
If a protrusion structure is added to prevent resin entry, then resin containment is improved, but manufacturing complexity increases
Solution Approach 1:
The protrusion structure is merged with the second substrate, and the first sealant region and second sealant region are combined into an integrated sealing system. The light-blocking regions are also merged into the overall substrate structure. This merging approach provides effective resin containment through the protrusion and sealant regions while avoiding the need for separate, complex components, thus resolving the contradiction between reliability and manufacturing 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
Prevents photocurable resin from being uncured and entering the light-blocking region, maintaining image quality by ensuring the resin is cured and reducing the width of the slit region, allowing for a wider video display surface.
Implementation Method 1
a protrusion structure provided between the first substrate and the second substrate in a boundary region between the pixel region and the light-blocking region, the protrusion structure including a transparent or semitransparent material that transmits light
Implementation Method 2
a first resin including a photocurable resin that seals a part between the first substrate and the second substrate in a pixel region
Data Source
AI summary
A semiconductor apparatus including a layered structure is disclosed. In one example, a first substrate with a light-emitting element and a second substrate with a light-blocking member on a periphery are layered with each other. The layered structure includes a first resin including a photocurable resin that seals a part between the first substrate and the second substrate in a pixel region. A second resin seals a part between the first substrate and the second substrate in a light-blocking region at a periphery. A protrusion structure is arranged between the first substrate and the second substrate in a boundary region between the pixel region and the light-blocking region, and includes a transparent or semitransparent material that transmits light.