Display Panel Layout With Rear-Bent Films for Bezel and RC Balance
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Solution Overview
Problem
Display apparatuses with heterogeneous structures face challenges in minimizing the bezel area and reducing resistor-capacitor (RC) load differences, which affect the visibility and performance of the display.
Innovation Solution
The display apparatus incorporates a design with a first area and a second area extending from one side, where flexible films are connected to the display panel such that the distance between the ends of the first area is less than the distance between the ends of the second area, and the flexible films are bent to the rear side, reducing the bezel area and using compensation patterns to equalize RC loads across different areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the printed circuit board is disposed on the front surface of the display apparatus, then the area for image display is reduced, but the bezel area increases
Solution Approach 1:
The patent applies dimensionality change by bending the substrate on which the printed circuit board is disposed to the rear side of the display apparatus. This transforms the spatial arrangement from a planar front-surface configuration to a three-dimensional configuration where the circuit board extends backward, effectively removing it from the front display area without increasing the visible bezel area.
2Area of stationary object
If the substrate is bent to the rear side to minimize bezel area, then the bezel area is reduced, but RC load difference increases
Solution Approach 1:
The patent applies local quality by creating a heterogeneous structure where the first area and second area have different properties. The first area has a shorter distance between ends and the second area has a longer distance, allowing different RC load compensation strategies to be applied to different regions. This local differentiation enables RC load balance while maintaining the reduced bezel area design.
Solution Approach 2:
The patent applies parameter changes by introducing compensation patterns that modify the electrical parameters (capacitance and resistance) in different areas. By adjusting the capacitance values through compensation patterns in the first and second areas, the RC load differences caused by the bent substrate configuration are compensated, maintaining signal integrity across the display.
3Reliability
If the display apparatus has a heterogeneous structure with different area distances, then RC load difference is reduced, but the structural complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the display apparatus into distinct first and second areas with different structural characteristics. The first area has a shorter end-to-end distance while the second area has a longer distance, allowing independent optimization of RC load parameters in each segment. This segmentation enables targeted RC load compensation without requiring complete redesign of the entire structure.
Data Source
AI summary
A display apparatus is disclosed. The display apparatus comprises a display panel including a first area and a second area extending from a first side of the first area, and a plurality of flexible films connected to the display panel. A distance between a first end and a second end of the first area is less than a distance between a first end and a second end of the second area and the plurality of flexible films are connected to the first end of the first area and the first end of the second area.