Stacked Gate and Data Driving Chips for Reduced Display Bezel
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Solution Overview
Problem
The existing display apparatuses have a large bezel size due to the separate mounting of gate and data driving chips on the display panel, which increases production costs and manufacturing time.
Innovation Solution
The display apparatus includes a display panel with a first and second substrate, where the gate driving chip is stacked on the data driving chip, and both are connected through a flexible substrate and bonding pads, reducing the need for separate mounting on the short side of the display panel, thereby decreasing the bezel size and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If gate driving chip and data driving chip are mounted separately on the display panel, then electrical connection is maintained, but bezel size becomes large and manufacturing time increases
Solution Approach 1:
The gate driving chip and data driving chip are merged into a single integrated driving chip that includes both gate driving circuits and data driving circuits. This integration eliminates the need for separate mounting of two chips, thereby reducing the bezel size and decreasing manufacturing time while maintaining all necessary electrical connections to the display panel.
Solution Approach 2:
The integrated driving chip performs multiple functions by incorporating both gate driving circuits and data driving circuits in a single device. This multi-functional design allows the chip to control both gate lines and data lines of the display panel simultaneously, replacing what previously required two separate specialized chips.
2Device complexity
If gate driving chip and data driving chip are mounted separately, then functional independence is maintained, but device complexity increases
Solution Approach 1:
By combining gate driving and data driving functions into a single chip, the patent reduces the complexity of mounting and connecting multiple separate chips. The integrated design simplifies the overall device structure while maintaining reliable electrical connections through a unified interface with the display panel.
Data Source
AI summary
A display apparatus includes a display panel and a display panel driver. The display panel includes a first substrate and a second substrate facing the first substrate, wherein the first substrate includes a switching element, a data line and a gate line, wherein the data line and the gate line are electrically connected to the switching element. The display panel driver includes a data driving chip and a gate driving chip, wherein the data driving chip applies a data signal to the data line and the gate driving chip applies a gate signal to the gate line, wherein the gate driving chip is disposed on a surface of the data driving chip.