Display Driving Device Using Blank Signals for Memoryless Upscaling
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Solution Overview
Problem
Existing display driving devices require internal memory to store original images for upscaling, leading to increased size and manufacturing costs, and data transmission and power consumption between the processor and display driving device.
Innovation Solution
Implementing an upscaling function in the display driving device without a memory by using synchronization signals with active and blank synchronization signals to generate high-resolution images, minimizing data transmission and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the upscaling function is implemented in the display driving device with an internal memory to store the original image, then the upscaling quality is improved, but the device size and manufacturing costs increase
Solution Approach 1:
The patent extracts the memory storage function from the display driving device and relocates it to the processor. The processor stores the original image and transmits only necessary data to the display driving device, which then performs upscaling without requiring internal memory. This resolves the contradiction by maintaining upscaling quality while reducing device size.
Solution Approach 2:
The processor performs preliminary actions by storing the original image and pre-processing data before transmission. It transmits line image data and synchronization signals that contain all necessary information for upscaling, allowing the display driving device to perform the upscaling function without needing internal storage capacity.
2Adaptability or versatility
If the upscaling function is implemented in the display driving device with an internal memory, then the upscaling capability is improved, but the manufacturing costs increase
Solution Approach 1:
The memory component is extracted from the display driving device and placed in the processor. This eliminates the need for additional memory chips in the display driving device, reducing component count and manufacturing complexity while preserving the upscaling capability through alternative data transmission methods.
Solution Approach 2:
The processor creates and transmits copies of necessary image data (line image data and synchronization signals) to the display driving device. This allows the display driving device to perform upscaling operations without needing to store the original image, reducing hardware requirements and manufacturing costs.
3Manufacturing precision
If the processor transmits the result image to the display driving device, then the display quality is improved, but the data transmission amount and power consumption increase
Solution Approach 1:
The patent segments the image data into line image data corresponding to individual horizontal lines, transmitted in synchronization with horizontal synchronization signals. This segmentation allows the display driving device to process and upscale data line-by-line in real-time, reducing the amount of data that needs to be transmitted and stored compared to transmitting complete high-resolution frames.
Solution Approach 2:
The processor transmits only the necessary line image data and synchronization signals required for upscaling, rather than transmitting complete high-resolution image data. This partial transmission approach provides sufficient information for the display driving device to generate high-quality output while minimizing data transmission volume and power consumption.
4Manufacturing precision
If the processor transmits the result image to the display driving device, then the display quality is improved, but the power consumption increases
Solution Approach 1:
Image data is segmented into line-by-line transmissions synchronized with horizontal synchronization signals. This allows the display driving device to perform incremental upscaling operations rather than processing large batches of data at once, reducing peak power consumption and enabling more efficient energy utilization during the display refresh cycle.
Solution Approach 2:
The processor transmits only partial data (line image data and synchronization signals) necessary for upscaling, rather than complete high-resolution image data. This reduces the computational burden and power consumption associated with data transmission and processing while still achieving high display quality through the upscaling function.
Data Source
Figure 1A~1B
Figure 2
Figure 3A
AI summary
An electronic system may include a processor configured to output image data corresponding to an original image having a first resolution and a synchronization signal; and a display driving device configured to generate a result image having a higher than the first resolution, based on the image data and the synchronization signal, the image data including line image data corresponding to horizontal lines of the original image, and the synchronization signal including horizontal synchronization signals output at horizontal periods, the horizontal synchronization signals including active synchronization signals determining output timing of the line image data, and blank synchronization signals unrelated to the line image data, and the processor configured to output at least one of the blank synchronization signals between at least some of the active synchronization signals, based on scaling information determined based on the first resolution and the second resolution.