Dual-Edge Driver Chip Layout for High-Resolution Displays
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Solution Overview
Problem
The challenge of securing space for a large number of driver chips in high-resolution display panels hinders the advancement of higher display resolutions, as the limited space restricts the arrangement of driver chips on the display panel.
Innovation Solution
A configuration where first and second driver chips are connected to opposite edges of the display panel, with signal lines alternately arranged, allowing for efficient use of space and narrow pitch arrangements, thereby enabling high-definition displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the display panel is increased, then the display quality is improved, but the number of driver chips required increases, making it difficult to secure arrangement space
Solution Approach 1:
The invention divides the driver chip functionality into multiple segments: a first driver chip mounted on the display panel and a second driver chip mounted on a flexible substrate. This segmentation allows the driver functions to be distributed across different locations, resolving the space constraint problem while maintaining high-resolution display capability.
Solution Approach 2:
The invention transitions from a two-dimensional arrangement of driver chips on the display panel to a three-dimensional configuration where driver chips are distributed across multiple planes (display panel and flexible substrate). This dimensional change enables efficient space utilization and accommodates high-resolution requirements.
2Ease of operation
If driver chips are arranged on the display panel, then video signals can be supplied to pixels, but space for other components is reduced
Solution Approach 1:
The invention extracts part of the driver chip functionality from the display panel and places it on a flexible substrate. This extraction reduces the space occupation on the display panel while maintaining the complete driver functionality needed for signal supply to pixels.
Solution Approach 2:
The flexible substrate acts as an intermediary carrier for the second driver chip, enabling signal supply functionality without directly occupying space on the display panel. This intermediary approach resolves the conflict between signal supply capability and space availability.
3Measurement precision
If signal lines are arranged with narrow pitch, then display resolution is improved, but space for driver chips and flexible substrates becomes limited
Solution Approach 1:
The invention segments the signal line routing into multiple paths: some signal lines are connected to the first driver chip on the display panel, while others are connected to the second driver chip on the flexible substrate. This segmentation allows narrow pitch signal line arrangement in the display area while providing adequate space for driver chip and flexible substrate arrangement in peripheral areas.
Data Source
AI summary
According to one embodiment, a display device comprises a display panel, first and second driver chips. The display panel includes first and second edge portions, a display area between the first and second edge portions in a first direction, first signal lines extending to the display area, and second signal lines extending to the display area. The first driver chip is connected to the first edge portion to supply video signals to the first signal lines. The second driver chip is connected to the second edge portion to supply video signals to the second signal lines. Number N of the first signal lines and number M of the second signal lines are alternately arranged in a second direction.