Display Driver Converter for RGBG Pixel Structure

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Solution Overview

Problem

Conventional display apparatuses with RGBG pixel structures require data remapping, increasing logic size and power consumption, and prolonging data operation time.

Innovation Solution

A display apparatus and method that generates conversion data corresponding to an RGBG pixel structure without data rearrangement, using a converter to process input image data and apply output data directly to subpixels, reducing logic size and power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If data remapping is performed to match input image data to the RGBG pixel structure, then the display apparatus can drive the display panel, but the logic size of data operation increases

Engineering Contradiction:

Improvecompatibility with RGBG pixel structureVSAvoidlogic size of data operation

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Instead of remapping input RGB data to match the RGBG pixel structure (conventional approach), the patent inverts the approach by generating conversion data that directly corresponds to the RGBG structure from the input RGB data without rearrangement. The converter generates conversion data where odd columns contain R and G data and even columns contain B and G data, eliminating the need for complex data remapping operations.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent changes the parameter organization of data by generating conversion data with a specific column structure where odd columns hold (R, G) pairs and even columns hold (B, G) pairs. This parameter reorganization allows direct mapping to the RGBG pixel structure without requiring data remapping, thus reducing logic size while maintaining adaptability.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If data remapping is performed to match input image data to the RGBG pixel structure, then the display apparatus can drive the display panel, but power consumption increases

Engineering Contradiction:

Improvecompatibility with RGBG pixel structureVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent inverts the conventional data processing approach by generating conversion data that directly matches the RGBG pixel structure without remapping. This inversion eliminates the need for complex data rearrangement operations, thereby reducing power consumption while maintaining full compatibility with the RGBG display panel structure.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent extracts and eliminates the unnecessary data remapping process from the system. By generating conversion data that directly corresponds to the RGBG structure from the input RGB data, the patent removes the power-consuming remapping operation while preserving the required adaptability to the display panel structure.

Inventive Principle:

Principle #2Taking out (Extraction)

3Adaptability or versatility

If data remapping is performed to match input image data to the RGBG pixel structure, then the display apparatus can drive the display panel, but data operation time is prolonged

Engineering Contradiction:

Improvecompatibility with RGBG pixel structureVSAvoiddata operation time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent inverts the conventional approach by generating conversion data that directly corresponds to the RGBG pixel structure without requiring data remapping. This inversion significantly reduces data operation time while maintaining full compatibility with the RGBG display panel, as the converter can process data in a straightforward manner without complex rearrangement steps.

Inventive Principle:

Principle #13The other way round (Inversion)

4Measurement precision

If pixel size is reduced by sharing subpixels between adjacent pixels, then resolution of the display panel is increased, but data processing complexity increases

Engineering Contradiction:

Improveresolution of display panelVSAvoiddata processing complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies the inversion principle by generating conversion data that directly matches the shared subpixel structure of the RGBG pixel format. Instead of complicating data processing to accommodate the reduced pixel size and shared subpixels, the patent inverts the approach to produce conversion data that naturally aligns with this structure, thereby maintaining high resolution while reducing data processing complexity.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS11900847B2Display apparatus and method of driving the same

Publication Date: 2024.02.13 SAMSUNG DISPLAY CO LTD

AI summary

A display apparatus includes a display panel and a display driver. The display panel has a first pixel structure. The display driver is configured to receive input image data including first data, and generate a driving signal for driving the display panel based on conversion data. The display driver includes a converter configured to convert the first data into the conversion data. The conversion data include conversion data in N rows and M columns. Each of (2K−1)-th column conversion data include first color conversion data representing a first color and second color conversion data representing a second color. Each of 2K-th column conversion data include third color conversion data representing a third color and fourth color conversion data representing the second color. N, M and K are positive integers.