Flat Panel Display Intra-System Interface Unit for Data Transfer Efficiency
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Solution Overview
Problem
Current interfaces between control IC and driving IC in flat panel displays have low data transfer efficiency due to repeated transfer of gray data for each pixel point, leading to high transfer clock frequency and electromagnetic interference.
Innovation Solution
An intra-system interface unit that compresses and processes image signal data by classifying and address-encoding sub-pixel points with the same gray level, allowing data to be sent only once, reducing repeated transfers and improving bus utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transferred pixel by pixel in order using traditional interfaces (TTL, mini-LVDS, RSDS), then the interface is simple and compatible, but data transfer efficiency is low due to repeated transfer of gray data
Solution Approach 1:
The patent segments the data transfer process by grouping pixel points with the same gray level together. Instead of transferring data pixel by pixel in order, the system identifies and groups adjacent pixels that have identical gray level values, then transfers them as a single data unit. This segmentation approach reduces the number of repeated gray data transfers while maintaining interface simplicity.
Solution Approach 2:
The patent merges multiple pixel points with the same gray level into a single data transfer unit. By combining adjacent pixels that share identical gray level values, the system reduces the total number of data transfer operations required. This merging technique directly addresses the efficiency problem by eliminating redundant transfers of the same gray data across multiple pixels.
2Reliability
If gray data is transferred repeatedly for each pixel point, then all pixel points can be updated, but transfer clock frequency must be high leading to electromagnetic interference
Solution Approach 1:
The patent segments the data transfer process by grouping pixel points with the same gray level together. Instead of transferring data pixel by pixel in order, the system identifies and groups adjacent pixels that have identical gray level values, then transfers them as a single data unit. This segmentation approach reduces the number of repeated gray data transfers while maintaining interface simplicity.
Solution Approach 2:
The patent merges multiple pixel points with the same gray level into a single data transfer unit. By combining adjacent pixels that share identical gray level values, the system reduces the total number of data transfer operations required. This merging technique directly addresses the efficiency problem by eliminating redundant transfers of the same gray data across multiple pixels.
3Productivity
If data is transferred one pixel point by one pixel point in order, then the transfer process is simple, but many gray data are transferred repeatedly reducing efficiency
Solution Approach 1:
The patent applies preliminary action by pre-identifying and grouping pixel points with the same gray level before the actual data transfer occurs. The system analyzes the image data in advance, identifies adjacent pixels with identical gray levels, and prepares grouped data units for transfer. This preliminary processing eliminates the need for repeated transfers during the actual data transmission, reducing overall transfer time.
Solution Approach 2:
The patent merges multiple pixel points with the same gray level into a single data transfer unit. By combining adjacent pixels that share identical gray level values, the system reduces the total number of data transfer operations required. This merging technique directly addresses the efficiency problem by eliminating redundant transfers of the same gray data across multiple pixels.
Data Source
AI summary
The present invention discloses an intra-system interface unit in a flat panel display comprising: a control IC unit and a driving IC unit. The control IC unit receives an external image data signal and compresses and processes the image signal data. The control IC unit sends the resulting signal to the driving IC unit through an interface therein. The data is decompressed within the driving IC unit and then output. The control IC unit comprises a signal receiver, a gray level data classifier, a data and address encoder, and a differential signal sender. The driving IC unit comprises a differential signal receiver, a data and address separator, a gray level data processor, an address decoder, a channel addresser, and an output circuit. The present invention lowers the repeated transfer of the same gray data in a row, thereby lowering the interface clock frequency, which facilitates transferring data with higher resolution and lowering the electromagnetic interference of the system.