Shared Data Voltage Supply Circuit for High-Resolution Displays
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Solution Overview
Problem
Related display devices cannot drive high-resolution display screens using low-resolution signals, leading to inadequate screen consumption.
Innovation Solution
A data voltage supply circuit with gating circuits that control sub-pixels to receive data voltage from corresponding or adjacent columns, allowing low-resolution signals to drive high-resolution displays by averaging data voltages across multiple columns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each column of sub-pixels receives data voltage from its own dedicated data voltage supply terminal, then the display resolution and image quality are maintained, but the power consumption increases and the device complexity increases
Solution Approach 1:
The patent merges multiple data voltage supply terminals into a shared supply system. Specifically, multiple columns of sub-pixels share common data voltage supply terminals (e.g., Y1-Y6 are shared across multiple pixel columns), reducing the total number of supply terminals needed. This combining approach lowers power consumption while maintaining display resolution through the gating circuit's ability to selectively route voltages.
Solution Approach 2:
The patent segments the data voltage supply function into two parts: shared supply terminals that provide voltage to multiple columns, and gating circuits that selectively distribute the voltage to specific columns. This segmentation allows efficient voltage distribution where N supply terminals can serve 2N columns through the gating mechanism, resolving the contradiction between resolution and power consumption.
2Measurement precision
If multiple data voltage supply terminals are used to drive high-resolution displays, then the image quality is maintained, but the device complexity increases
Solution Approach 1:
The patent combines multiple voltage supply functions into fewer physical supply terminals. By allowing N supply terminals to serve 2N columns through the gating circuit, the number of required supply terminals is reduced by half, directly lowering device complexity while preserving the ability to drive high-resolution displays.
Solution Approach 2:
The gating circuit acts as an intermediary between the reduced number of supply terminals and the larger number of pixel columns. This intermediary component enables efficient voltage distribution where Y1-Y6 supply terminals can control voltages for up to 12 columns through the gating mechanism, resolving the complexity issue without sacrificing display resolution.
3Use of energy by moving object
If low-resolution signals are used to drive high-resolution displays, then power consumption is reduced, but the image quality deteriorates
Solution Approach 1:
The patent uses copying by having pixels in different columns share the same data voltage supply terminals. For example, pixels in different columns can receive identical voltage values from shared terminals (Y1-Y6), effectively copying voltage patterns across columns. This allows low-resolution signal patterns to be copied and distributed across high-resolution pixel arrays, maintaining power efficiency while achieving high-resolution display through the gating circuit's selective routing capability.
Data Source
AI summary
A data voltage supply circuit is applied to a display device, the display device includes a data driver, a plurality of columns of pixels and a plurality of columns data lines, the column of pixels includes M columns of sub-pixels; M is an integer greater than or equal to 3; the data driver includes a plurality of data voltage supply terminals; the data voltage supply circuit includes a plurality of supply circuits; the supply circuit is configured to control the M columns of sub-pixels included in a corresponding column of pixels to respectively receive a data voltage provided by a corresponding data voltage supply terminal, or to control the M columns of sub-pixels included in the corresponding column of pixels to obtain the data voltage provided to the M columns of sub-pixels according to a data voltage provided to at least one other column of pixels.