Integrated Gate Driver Layout for Multi-Antenna Bandwidth Scaling
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Solution Overview
Problem
The increasing number of antenna units in electronic apparatuses requires more source and gate driver chips, increasing costs and reducing yield due to chip bonding processes.
Innovation Solution
The electronic apparatus incorporates multiple gate driver units and gate lines on a substrate, where each gate line is connected to a corresponding gate driver unit, allowing for simultaneous signal transmission on non-adjacent lines, reducing the need for additional chips and improving yield through on-substrate fabrication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of antenna units is increased to receive greater bandwidth, then the bandwidth is improved, but the number of required chips increases
Solution Approach 1:
The patent merges the gate driver function directly into the antenna substrate by fabricating gate driver units using the same thin film transistor process as the antenna units. This integration eliminates the need for separate gate driver chips, reducing chip count while maintaining the capability to control multiple antenna units for increased bandwidth
Solution Approach 2:
The antenna substrate is designed to serve multiple functions: it acts as both the antenna array and the gate driver circuit substrate. The gate driver units are fabricated using the same thin film transistor process, making the substrate universal for both antenna and driver functions, thereby reducing the total number of chips required
2Quantity of substance
If the number of antenna units is increased to receive greater bandwidth, then the bandwidth is improved, but the cost is increased
Solution Approach 1:
By combining the gate driver fabrication with the antenna substrate manufacturing process, the patent eliminates the need for separate gate driver chip production and bonding operations. This integration reduces manufacturing steps, material usage, and assembly complexity, thereby lowering overall production cost while supporting multiple antenna units for greater bandwidth
3Ease of operation
If additional source driver chip and gate driver chip are disposed on the peripheral region by chip bonding, then the antenna unit can be controlled, but the yield is reduced
Solution Approach 1:
The patent merges the gate driver units directly onto the antenna substrate using the same thin film transistor fabrication process, eliminating the chip bonding step entirely. This integration removes a potential failure point in the manufacturing process, improving yield while maintaining full control capability over the antenna units
Solution Approach 2:
The antenna substrate becomes self-sufficient by incorporating its own gate driver units fabricated through the same process. This self-service approach eliminates the need for external chip bonding, reducing manufacturing complexity and improving production yield while maintaining control functionality
Data Source
AI summary
The disclosure provides an electrical apparatus (100), including a substrate (110), a plurality of gate driver units (122_1, 122_2, 122_3, 122_4) and a plurality of gate lines (GL1, GL2, GL3, GL4, GL5, GL6, GL7, GL8, GL9, GL10, GL11, GL12, GL13, GL14, GL15, GL16, GL17, GL18, GL19, GL20, GL21, GL22, GL23, GL24, GL25, GL31). The gate driver units are disposed on the substrate. The gate lines are disposed on the substrate. Each of the gate lines is respectively electrically connected to the corresponding gate driver unit. Each of the gate lines is configured to transmit a respective gate signal (XI, X2, X3, X4, X5, X6, X7). The gate lines include a first gate line (GL1, GL7) and a second gate line (GL4, GL7, GL13, GL19). The first gate line and the second gate line are configured to transmit the respective gate signals at a same time.