Data Source Integrated Circuit Gamma Voltage Generation
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Solution Overview
Problem
The production cost of gamma voltage for display panels is high due to the need for a separate gamma integrate circuit, which occupies resources in the data source integrate circuit.
Innovation Solution
A method where the data source integrate circuit generates gamma voltages based on target analog voltage, eliminating the need for a gamma integrate circuit and reducing resource occupation, thereby lowering production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate gamma integrate circuit is used to generate gamma voltages, then the gamma voltages can be generated reliably, but the production cost increases and resources in the data source integrate circuit are occupied
Solution Approach 1:
The patent merges the gamma voltage generation function into the data source integrate circuit by adding a gamma voltage generation module. This module includes a first voltage generator that generates first gamma voltages based on a first input voltage, and a second voltage generator that generates second gamma voltages based on a second input voltage. By combining these functions, the separate gamma integrate circuit is eliminated, reducing device complexity while maintaining reliable gamma voltage generation through dedicated voltage generation pathways.
2Reliability
If a separate gamma integrate circuit is used, then gamma voltage generation is dedicated and reliable, but the lead resources of data source integrate circuit are occupied
Solution Approach 1:
The patent combines the gamma voltage generation function within the data source integrate circuit itself. The first voltage generator receives a first input voltage and generates first gamma voltages, while the second voltage generator receives a second input voltage and generates second gamma voltages. This integration eliminates the need for a separate gamma integrate circuit and its associated lead connections, thereby reducing lead resource occupation while maintaining dedicated voltage generation pathways for reliability.
3Reliability
If a separate gamma integrate circuit is used, then gamma voltage generation is independent, but the production cost increases
Solution Approach 1:
The patent integrates the gamma voltage generation module into the data source integrate circuit, combining multiple functions into a single circuit block. This reduces the total component count and assembly complexity, directly lowering production costs. The first and second voltage generators maintain independent operation within the integrated circuit, preserving generation independence and reliability while achieving cost efficiency through manufacturing simplification.
Data Source
AI summary
Disclosed is a method for generating gray-scale voltage of display panel, which includes: generating, by a data source integrate circuit, a preset number of gamma voltages according to a target analog voltage(S10); and generating the gray-scale voltage of the display panel in accordance with each gamma voltage (S20).

