SOURCE DRIVER AND DISPLAY APPARATUS

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SOURCE DRIVER AND DISPLAY APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18609588 titled 'SOURCE DRIVER AND DISPLAY APPARATUS

Simplified Explanation: The patent application describes a source driver for display devices, which includes various components such as gradation wiring, output amplifiers, voltage generation units, bias current supply units, comparison units, and bias current adjustment units.

The output amplifiers are arranged in parallel with the gradation wiring.
The gradation voltage generation unit and bias current supply unit are located in the center region of the driver IC.
The comparison unit compares pixel drive voltages from different output amplifiers.
The bias current adjustment unit adjusts bias currents based on the comparison results.

Key Features and Innovation:

Parallel arrangement of output amplifiers for efficient operation.
Central placement of voltage generation and bias current supply units for optimal performance.
Dynamic adjustment of bias currents based on voltage comparison results for accurate pixel drive.

Potential Applications: This technology can be used in various display devices such as LCDs, OLEDs, and LED screens.

Problems Solved: The source driver addresses issues related to pixel drive voltage discrepancies and bias current optimization in display devices.

Benefits:

Improved display performance and accuracy.
Enhanced energy efficiency through optimized bias current adjustments.
Consistent pixel drive voltages for high-quality images.

Commercial Applications: This technology can be applied in the manufacturing of smartphones, tablets, TVs, and other electronic devices with display screens.

Prior Art: Readers can explore prior patents related to source drivers in display technology to understand the evolution of this innovation.

Frequently Updated Research: Stay informed about advancements in display technology, particularly in the field of source drivers and pixel drive optimization.

Questions about Source Drivers: 1. How does the placement of output amplifiers impact the overall performance of a source driver? 2. What are the key factors to consider when adjusting bias currents in a source driver for display devices?

Original Abstract Submitted

A source driver includes a gradation wiring, a plurality of output amplifiers, a gradation voltage generation unit, a bias current supply unit, a comparison unit, and a bias current adjustment unit. The plurality of output amplifiers are arranged side by side in parallel with the gradation wiring. The gradation voltage generation unit is disposed in a center region located close to a center portion of a driver IC. The bias current supply unit is disposed in the center region. The comparison unit compares the pixel drive voltages output from each of a first output amplifier and a second output amplifier disposed at opposed positions across the center region among the plurality of output amplifiers. The bias current adjustment unit adjusts at least one of the bias current supplied to each of the first output amplifier and the second output amplifier based on a comparison result.