Integrated OLED Driver Chip Reducing Frame Size
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Solution Overview
Problem
Existing OLED display devices have a large frame size due to the distribution of gate lines, data input lines, and power supply lines around the display region, which increases the non-display area and affects connection stability of signal lines.
Innovation Solution
The OLED display device incorporates an integrated driver chip with symmetrically arranged primary and secondary driving units, which generates scan and data signals and connects with scan lines and data lines through optimized connection lines, reducing the frame size by minimizing the non-display area and improving signal line stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gate lines, data input lines, and power supply lines are distributed around the display region to form a frame region, then each sub-pixel can be arranged by TFT with switch function and storage capacitor, but this creates a larger frame region of the display device
Solution Approach 1:
The patent merges the gate driver and source driver into a single integrated driver chip, consolidating multiple functions into one component. This integration reduces the overall frame region by eliminating the need for separate driver chips and their associated connection lines, while still maintaining the capability to drive all sub-pixels through coordinated gate and source signals.
Solution Approach 2:
The patent changes the arrangement dimension of driving units from a distributed peripheral layout to a concentrated same-side layout. By placing multiple driving units on one side of the display region and using vertical connection lines to connect to scan lines, the design reduces the horizontal frame region while maintaining full sub-pixel control capability.
2Adaptability or versatility
If multiple driver chips are used for gate driver and source driver, then scan signals and data signals can be generated independently, but this increases the complexity of connection lines and frame region size
Solution Approach 1:
The patent combines multiple driver functions (gate driver and source driver) into a single integrated driver chip. This merger maintains the independent signal generation capability while significantly reducing connection line complexity by having all connection lines emerge from one location rather than multiple scattered connection points.
Solution Approach 2:
The integrated driver chip performs multiple functions - generating both gate signals and source signals, driving multiple scan lines simultaneously. This multi-functional design eliminates the need for separate specialized driver chips while maintaining full signal generation capability.
3Ease of operation
If connection lines are led out from multiple locations of the driver chip, then scan lines and data lines can be connected independently, but this affects connection stability of signal lines
Solution Approach 1:
The patent extracts the connection lines and consolidates them to emerge from a single location on the driver chip. This extraction of connection points from multiple locations to one centralized location improves connection stability by reducing the number of potential failure points while maintaining the ability to connect to both scan lines and data lines independently through the unified connection interface.
Data Source
AI summary
An organic light emitting diode (OLED) display device includes a plurality of scan lines, a plurality of data lines, and a driver chip. The scan lines are configured to receive scan signals. The data lines are configured to receive data signals. The driver chip is connected with the scan lines and the data lines, and configured to generate the scan signals and the data signals. A plurality of connection lines that are connected the driver chip with the data lines and scan lines are led out from a side of the driver chip.