OLED Drive Device Electrical Compensation Circuit Integration
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Solution Overview
Problem
Organic Light Emitting Diode (OLED) display panels face issues with inhomogeneous display brightness, and existing electrical compensation methods require a timing control circuit, which decreases system integration level and response speed.
Innovation Solution
An image display drive device with a detection circuit and a data superposition circuit that obtains an electrical compensation data signal and superposes it with an initial driving data signal to produce a compensated driving data signal, eliminating the need for a timing control circuit by integrating the electrical compensation function within the drive device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If electrical compensation methods are used to improve display brightness uniformity, then display brightness uniformity is improved, but system integration level decreases due to requiring a timing control circuit
Solution Approach 1:
The patent merges the electrical compensation function with the drive device by integrating the detection circuit and data superposition circuit directly into the drive device. This eliminates the need for a separate timing control circuit, thereby improving system integration level while maintaining the brightness uniformity compensation capability.
Solution Approach 2:
The drive device is designed to perform multiple functions: it既能驱动显示面板正常工作，又能通过集成的检测电路和数据叠加电路实现电气补偿。The detection circuit detects electrical signals from the display panel, and the data superposition circuit superposes compensation data with driving data, enabling the drive device to simultaneously handle driving and compensation tasks.
2Illumination intensity
If a timing control circuit is used for electrical compensation, then display brightness uniformity is improved, but response speed decreases due to additional data exchange
Solution Approach 1:
By integrating the detection circuit and data superposition circuit directly into the drive device, the patent eliminates intermediate data exchange with a separate timing control circuit. This reduces communication overhead and latency, thereby improving response speed while maintaining compensation functionality.
Solution Approach 2:
The patent extracts the compensation function from the external timing control circuit and relocates it directly into the drive device. This removal of the intermediate timing control circuit eliminates the data exchange bottleneck, thereby improving response speed.
3Illumination intensity
If electrical compensation is implemented with external circuits, then display brightness uniformity is improved, but device complexity increases due to additional components
Solution Approach 1:
The patent combines the detection circuit and data superposition circuit with the existing drive device structure. This integration approach avoids adding separate external compensation circuits, thereby reducing the overall number of components and simplifying the system architecture while achieving brightness uniformity compensation.
Data Source
AI summary
An image display drive device, a display device and an electrical compensation method are disclosed. The image display drive device includes a detection circuit and a data superposition circuit. The detection circuit is configured to obtain an electrical compensation data signal of a display panel; the data superposition circuit is configured to superpose the electrical compensation data signal and the initial driving data signal, so as to obtain a compensated driving data signal.