Display Device Bezel Protection via Adhesive Block Pattern
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Solution Overview
Problem
Display devices face deterioration of the deco member, which defines the bezel, leading to changes in the bezel's appearance, affecting the device's aesthetic quality.
Innovation Solution
A display device design featuring a transparent base member with a deco member and a block pattern printed on its bottom surface, preventing contact between the adhesive member and the deco member, along with an auxiliary block pattern and blocking tape, to maintain the bezel's appearance and prevent deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the adhesive member is applied to bond the window member and display panel, then the bonding strength is improved, but the deco member deteriorates due to contact with adhesive
Solution Approach 1:
The window member is segmented into multiple layers: the transparent base member, the deco member, and the block pattern layer. This segmentation allows the adhesive member to bond only to the block pattern layer, preventing direct contact with the deco member and thus preventing deterioration while maintaining bonding strength.
Solution Approach 2:
The block pattern layer acts as an intermediary between the adhesive member and the deco member. It provides a bonding surface for the adhesive while preventing the adhesive from reaching and deteriorating the deco member, thus resolving the contradiction between bonding strength and deco member durability.
2Area of stationary object
If the adhesive member contacts the deco member, then the bonding area is increased, but the bezel appearance deteriorates
Solution Approach 1:
The block pattern layer is applied locally at the boundary between the display area and non-display area, specifically where the adhesive member would contact the deco member. This local application prevents appearance deterioration at the critical boundary region while allowing bonding to occur, thus resolving the contradiction between bonding area and bezel appearance quality.
3Ease of manufacture
If the deco member is directly printed on the transparent base member, then the manufacturing process is simplified, but the deco member is more susceptible to adhesive damage
Solution Approach 1:
The manufacturing process is segmented into distinct steps: first forming the transparent base member with deco member, then adding the block pattern layer. This segmentation maintains manufacturing simplicity while protecting the deco member from adhesive damage by introducing the protective block pattern layer in a subsequent step.
Solution Approach 2:
The block pattern layer is applied in advance before the adhesive member is applied. This preliminary action creates a protective barrier that prevents the subsequent adhesive application from damaging the deco member, thus resolving the contradiction between manufacturing simplicity and deco member vulnerability.
Data Source
AI summary
A display device includes a window member including a transparent base member having a first area and a second area, and a deco member under the transparent base member and overlapping with the second area, a display panel under the window member and having a display area overlapping with the first area, and a non-display area overlapping with the second area, the display panel including a pad unit on a portion of the non-display area, an adhesive member between the window member and the display panel for bonding the window member and the display panel to each other, a printed circuit board connected to the pad unit of the display panel, and a block pattern printed on a portion of a bottom surface of the deco member that is adjacent the adhesive member, the block pattern overlapping with the pad unit.