Display Panel Housing Grooves for Thermal Expansion Relief
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Solution Overview
Problem
Display devices face issues with moisture permeation defects and component damage due to heat generation, leading to reduced reliability and lifespan.
Innovation Solution
The display device incorporates a molding member that seals the components and a housing with grooves to accommodate expansion, minimizing pressure on insulating layers and reducing moisture ingress, while a sensor monitors expansion to adjust luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing is tightly fitted to the display panel to protect components, then protection against external impacts is improved, but thermal expansion and contraction cause cracks in insulating layers leading to moisture permeation
Solution Approach 1:
The patent applies beforehand cushioning by designing a groove structure in the housing that accommodates thermal expansion and contraction of the display panel before cracks can form in the insulating layers. The groove acts as a pre-prepared cushioning space that absorbs dimensional changes, preventing harmful cracks and subsequent moisture permeation.
Solution Approach 2:
The patent employs a flexible sealing approach by creating a groove structure that allows the housing to flexibly accommodate panel dimensional changes while maintaining the sealing function. This flexible design prevents rigid constraints that would cause cracks, thereby preventing moisture ingress while maintaining reliability.
2Object-affected harmful factors
If the housing is spaced apart from the display panel to accommodate thermal expansion, then cracks in insulating layers are reduced, but protection against external impacts is weakened
Solution Approach 1:
The patent applies segmentation by dividing the housing structure into distinct regions: a groove portion that accommodates thermal expansion and a sealing portion that maintains protection. This segmentation allows the housing to simultaneously provide spacing for thermal movement and maintain impact protection through the sealed configuration.
Solution Approach 2:
The groove structure is nested within the housing, creating a hierarchical structure where the groove accommodates dimensional changes while the overall housing maintains its protective enclosure. This nested design allows both functions to coexist without compromising either thermal accommodation or impact protection.
3Stability of the object's composition
If the display device uses rigid structural components to maintain stability, then structural integrity is improved, but thermal stress causes damage to components reducing lifespan
Solution Approach 1:
The patent applies parameter changes by modifying the housing structure to include a groove that changes the mechanical constraints on the display panel. This structural parameter change allows the system to accommodate thermal stress while maintaining overall structural integrity, thereby extending component lifespan without sacrificing stability.
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 minimizes cracks in insulating layers, reduces moisture permeation, and enhances the reliability and lifespan of the display device by buffering external impacts and heat-related damage.
Implementation Method 1
a housing which encloses a side surface of the cover window and is spaced apart from the display panel to extend to the bottom of the display panel... the housing includes a groove disposed in an inner surface opposite to the molding member
Data Source
AI summary
A display device includes a cover window, a display panel which includes an active area disposed below the cover window and including a plurality of pixels disposed therein, a first non-active area which encloses the active area, and a bending area which extends from one side of the first non-active area to be bent, a housing which encloses a side surface of the cover window and is spaced apart from the display panel to extend to the bottom of the display panel and a molding member which is disposed in a space in which the housing and the display panel are spaced apart from each other, below the cover window. The molding member is disposed so as to cover a side surface of the display panel and the housing includes a groove disposed in an inner surface opposite to the molding member.