Display Substrate Wiring Compensation for Camera-Integrated Screens
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Solution Overview
Problem
Display devices with camera devices integrated into the display region face challenges in achieving full-screen and narrow-frame designs due to varying signal line loads affecting display consistency and efficiency.
Innovation Solution
A display substrate with a flexible printed circuit and compensation method using two different capacitor structures for signal lines with varying loads, ensuring consistent load compensation by adjusting the ratio of these units to match signal line loads, thereby improving display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single type of compensation unit is used for all signal lines, then the device complexity is reduced, but the manufacturing precision of load compensation deteriorates because different signal lines have different loads requiring different compensation amounts
Solution Approach 1:
The compensation units are segmented into at least two different types (first compensation units and second compensation units) with different capacitance values. This segmentation allows different signal lines to receive appropriately matched compensation amounts, resolving the contradiction between device complexity and load compensation precision by introducing structural diversity only where needed for different compensation requirements.
Solution Approach 2:
Different compensation units with different capacitance values are selectively applied to different signal lines based on their specific load characteristics. This local quality approach ensures that each signal line receives the precise compensation it needs, improving overall load compensation precision without unnecessarily increasing device complexity across the entire system.
2Area of stationary object
If camera device is integrated into display region, then the display region area is maximized, but the display consistency deteriorates due to varying signal line loads in different sub-pixel rows
Solution Approach 1:
The patent applies different compensation strategies to different sub-pixel rows based on their specific load characteristics. By analyzing the varying loads in rows affected by camera integration and applying tailored compensation, the patent maintains display consistency across the entire display region while preserving the maximized display area achieved through camera integration.
Solution Approach 2:
The patent changes the compensation parameters (capacitance values) to match the varying signal line loads caused by camera integration. By adjusting compensation parameters according to the specific electrical characteristics of each signal line, the patent eliminates display inconsistencies while maintaining the integrated design that maximizes display region area.
3Stability of the object's composition
If compensation units are added to balance signal line loads, then the display consistency is improved, but the device complexity increases due to additional components and routing
Solution Approach 1:
The patent segments compensation units into different types with different capacitance values, allowing for more precise and efficient compensation. This segmentation reduces the number of compensation units needed compared to using only a single type, thereby improving display consistency while minimizing the increase in device complexity.
Solution Approach 2:
By changing the capacitance parameters of compensation units to match specific load requirements, the patent achieves effective load balancing with fewer components. This parameter-based approach allows precise compensation without proportionally increasing device complexity, as each compensation unit is optimized for its specific function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves more accurate load compensation, enhancing display consistency and efficiency by maintaining uniform signal transmission speeds across different sub-pixel rows, facilitating full-screen and narrow-frame designs.
Implementation Method 1
the first portion is spaced apart and insulated from the semiconductor pattern and the conductive pattern to provide at least one first compensation unit with a first capacitor structure, and the second portion is spaced apart and insulated from one of the semiconductor pattern and the conductive pattern to provide at least one second compensation unit with a second capacitor structure
Data Source
Figure 1~2
Figure 3A~3B
Figure 4A~4B
AI summary
A display substrate and a manufacturing method thereof, and a compensating method for wire load are provided. The display substrate includes a display region (201) and a peripheral region (202). The display region (201) has an opening (201A), and the peripheral region (202) includes an opening peripheral region (203) at least partially in the opening (201A); at least one wire (230) is provided in the display region (201) and the opening peripheral region (203). Each of the at least one wire (230) includes two portions, a first portion (231) is spaced apart and insulated from the semiconductor pattern (220) and the conductive pattern (240), to provide at least one first compensation unit (230A), and a second portion (232) is spaced apart and insulated from one of the semiconductor pattern (220) and the conductive pattern (240), to provide at least one second compensation unit (230B). The display substrate (20) uses two different compensation units to accurately compensate wires with different loads, so as to improve the display effect of the display substrate (20).