Electronic Paper Display Data Processing Efficiency

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Solution Overview

Problem

Current electronic paper display apparatus driving methods are inefficient in data processing as they can only compare the gray tone of one pixel between frames at a time, leading to uncompetitive performance in displaying image frames.

Innovation Solution

The method involves converting a first look-up table into a second look-up table and merging current and previous frames into a combined frame, allowing the data processor to generate image data by looking up the third grayscale digital code combination, which includes both frames, thereby improving data processing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the data processor compares gray tones of one pixel at a time between frames, then the processing method is simple, but the data processing efficiency is low

Engineering Contradiction:
Improvedata processing efficiencyVSAvoidprocessing method complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple pixel data processing operations into a single unified process. By combining the current frame and previous frame into a combined frame with interleaved pixel columns, and converting the first look-up table into a second look-up table that stores combined grayscale digital code combinations, the system processes multiple pixels simultaneously in one operation rather than comparing one pixel at a time, thereby significantly improving data processing efficiency

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transforms the processing approach from sequential single-pixel comparison to parallel multi-pixel processing by reorganizing data in a new dimensional structure. The combined frame interleaves pixel columns from current and previous frames, and the second look-up table is restructured to map combined grayscale code combinations directly to drive signals, enabling dimensional expansion of processing capacity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10019931B2Electronic paper display apparatus and driving method thereof
Publication Date: 2018.07.10 E INK HLDG INC
  • US10019931B2 patent drawing
  • US10019931B2 patent drawing
  • US10019931B2 patent drawing

AI summary

An electronic paper display apparatus including an electronic paper display panel to display an image page, a display driver coupled to the electronic paper display panel, and a data processor coupled to the display driver. The display driver drives the electronic paper display panel to display a plurality of image frames according to image data, so as to display the image page. The data processor converts a first look-up table into a second look-up table and merges a current frame and a previous frame into a combined frame. The data processor generates the image data according to the combined frame and the second look-up table and outputs the image data. The image frames include the current frame and the previous frame. A driving method of the electronic paper display apparatus is also provided.