AMOLED Touch Panel Direct Routing to Reduce Component Count
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Solution Overview
Problem
The existing display apparatuses require a large number of components, leading to low yield rates and high costs due to the use of multiple FPCs, COF connectors, and BTBs in the circuit connection design of flexible displays.
Innovation Solution
The display apparatus integrates the outgoing lines of the AMOLED panel and touch panel using a chip IC, reducing the need for two independent FPCs and one COF connector, and allowing the panels to be connected directly to the printed circuit board, thereby minimizing the number of components and connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple FPCs and connectors are used to route drive lines for touch panel and AMOLED panel, then the circuit connection can be established, but the quantity of components increases resulting in low yield rate and high costs
Solution Approach 1:
The patent merges the drive line routing functions into a single FPC that serves both the touch panel and AMOLED panel. Instead of using separate FPCs for each panel, the invention integrates the routing paths so that one FPC handles all drive lines, thereby reducing component quantity and improving yield rate while maintaining circuit connection functionality
Solution Approach 2:
The single FPC is designed with multi-functionality to route drive lines for both touch panel and AMOLED panel. The FPC serves multiple purposes simultaneously, eliminating the need for separate dedicated FPCs for each panel, thus reducing overall component complexity and improving manufacturing reliability
2Reliability
If multiple FPCs and connectors are used to route drive lines for touch panel and AMOLED panel, then the circuit connection can be established, but the manufacturing cost increases
Solution Approach 1:
The patent merges the drive line routing functions into a single FPC that serves both the touch panel and AMOLED panel. Instead of using separate FPCs for each panel, the invention integrates the routing paths so that one FPC handles all drive lines, thereby reducing component quantity and improving yield rate while maintaining circuit connection functionality
Solution Approach 2:
The invention extracts and eliminates unnecessary intermediate connectors (COF connectors and BTBs) from the signal transmission path. By directly routing drive lines from the FPC to the panels and then to the mainboard, the patent removes redundant components that contribute to manufacturing cost without adding functional value
3Productivity
If three FPCs are used to connect panels and mainboard, then the drive lines can be routed, but the number of connection processes increases reducing efficiency
Solution Approach 1:
The patent merges the drive line routing functions into a single FPC that serves both the touch panel and AMOLED panel. Instead of using separate FPCs for each panel, the invention integrates the routing paths so that one FPC handles all drive lines, thereby reducing component quantity and improving yield rate while maintaining circuit connection functionality
Solution Approach 2:
The patent segments the drive line routing into distinct zones on the single FPC, with separate routing paths for touch panel and AMOLED panel signals. This segmentation allows for organized signal management while maintaining the benefit of a single FPC, reducing connection processes from multiple FPC assemblies to a single FPC installation
Data Source
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AI summary
Embodiments of the present invention relate to a display apparatus, a method for manufacturing the display apparatus, and an electronic device. The display apparatus includes: an active organic light emitting diode AMOLED panel, a touch panel, a chip IC, and a printed circuit board PCB. The touch panel is disposed on an upper surface of the AMOLED panel, and the touch panel and the AMOLED panel each has an outgoing line. The outgoing line of the touch panel and the outgoing line of the AMOLED panel are separately extended to form an outgoing line extension end of the touch panel and an outgoing line extension end of the AMOLED panel. The outgoing line extension end of the AMOLED panel and the outgoing line extension end of the touch panel are electrically connected to the printed circuit board PCB by using the chip IC. The chip IC is configured to drive the display apparatus to display a picture. According to the display apparatus, the method for manufacturing the display apparatus, and the electronic device that are provided in the embodiments, the outgoing line of the touch panel and the outgoing line of the AMOLED panel are extended, to replace a drive line of the touch panel and a drive line of the AMOLED panel that are routed by using an FPC in the prior art, so as to resolve a problem in the prior art that a relatively large quantity of components need to be used to manufacture a display apparatus, resulting in a low yield rate and high costs.