Display Scan Control With Overlapping Gate Periods for Lower Data Load
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in reducing the amount of transmission data per unit time while maintaining image quality, particularly in integer-fold height displays where image quality is either too low or excessively high.
Innovation Solution
A display device configuration that includes a source drive circuit with switches and a control circuit to overlap gate and source signal periods, allowing for non-integer-fold height displays, reducing the amount of transmission data per unit time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If n-fold height display is performed using integer multiples of basic clock signals, then the amount of transmission data is reduced, but image quality becomes either too low or excessively high
Solution Approach 1:
The patent changes the fundamental parameter from integer-fold height display to non-integer-fold height display by making the ratio of m to n a rational number excluding integers. This allows precise control over the display resolution and image quality while maintaining data reduction benefits
Solution Approach 2:
The patent introduces dynamic switching between different display modes (n-fold height display and non-integer-fold height display) based on overlapping period control, allowing the system to adaptively adjust between data reduction and image quality requirements
2Quantity of substance
If gate signal periods are overlapped to achieve non-integer-fold height display, then transmission data amount is reduced, but the control complexity increases
Solution Approach 1:
The patent segments the source lines into multiple groups (first source line group and second source line group) and assigns different switches to control each group, allowing independent control of overlapping periods for different line groups
Solution Approach 2:
The patent introduces switch control signals as intermediary control elements that mediate between the basic clock signals and the actual source line selection, simplifying the overall control logic by providing a clear signaling mechanism for overlapping period management
Data Source
AI summary
A display device includes a control circuit. The control circuit transmits a gate control signal to a gate drive circuit so that part of a first period in which a gate signal is supplied to a gate line GL1 overlaps with part of a second period in which a gate signal is supplied to a gate line GL2 and which starts at a time point later than a start time point of the first period. The control circuit transmits a source control signal to a source drive circuit so that each of a first switch and a second switch is turned on once in one cycle of a horizontal synchronization signal. The control circuit transmits the source control signal to the source drive circuit so that one of the first switch and the second switch is turned on in a period in which the first period and the second period overlap each other.