Liquid Crystal Display Driving Device Interpolation

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Solution Overview

Problem

The increasing resolution of liquid crystal displays leads to a significant increase in the complexity and cost of the sequence control chip, as the number of pixel dots to be processed doubles, resulting in higher demands on the chip's processing capabilities.

Innovation Solution

A driving device comprising a sequence control chip and a data driving chip, where the sequence control chip selectively receives and sends gray scale values of pixel dots, with the data driving chip interpolating to restore the full set of gray scale values, reducing the number of pixel dots the sequence control chip needs to process by using interpolation techniques such as receiving values from every other line or column, and interpolating central pixel values from adjacent pixels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the resolution of liquid crystal display is increased, then the image quality gets better, but the complexity and cost of the sequence control chip increases significantly

Engineering Contradiction:

Improveimage qualityVSAvoidsequence control chip complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent divides the processing tasks between two separate chips: the sequence control chip and the data driving chip. The sequence control chip handles only a subset of pixel data (e.g., every other line or column), while the data driving chip performs interpolation to reconstruct the full-resolution image. This segmentation reduces the processing burden on the sequence control chip, thereby reducing its complexity and cost while maintaining high-resolution display capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The data driving chip acts as an intermediary between the sequence control chip and the display panel. It receives reduced-resolution data from the sequence control chip, performs interpolation processing to generate full-resolution data, and then drives the display panel. This intermediary approach allows the sequence control chip to operate with lower complexity while the system as a whole maintains high resolution.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If the resolution of liquid crystal display is increased, then the image quality gets better, but the cost of the sequence control chip increases several times

Engineering Contradiction:

Improveimage qualityVSAvoidsequence control chip cost

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

By segmenting the processing responsibilities between two chips, the sequence control chip only needs to handle a subset of pixel data, reducing its manufacturing complexity and cost. The data driving chip handles the more complex interpolation tasks, which can be implemented using standard integrated circuit design techniques, keeping overall system cost manageable.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The data driving chip creates copies of the reduced-resolution data through interpolation, generating the full set of pixel values needed for high-resolution display. This copying approach allows the system to achieve high resolution without requiring the sequence control chip to directly process all pixel data, thereby reducing cost.

Inventive Principle:

Principle #26Copying

3Loss of information

If the sequence control chip processes all pixel dots, then complete image data is obtained, but the chip complexity and processing burden increases

Engineering Contradiction:

Improveimage data completenessVSAvoidsequence control chip processing burden

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The patent extracts only a subset of pixel data (e.g., every other line or column) from the full image data and sends it to the data driving chip. This extraction approach reduces the amount of data the sequence control chip must process while the data driving chip reconstructs the complete image through interpolation, maintaining data completeness with reduced processing burden.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of processing all pixel data, the sequence control chip processes only a partial set of pixel data. The data driving chip then performs additional interpolation processing to complete the full image reconstruction. This partial action approach reduces the immediate processing burden on the sequence control chip while achieving complete image data through the combined system.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9886919B2Driving device and liquid crystal display

Publication Date: 2018.02.06 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD

AI summary

The present invention discloses a driving device and a liquid crystal display. The driving device comprises: a sequence control chip and a data driving chip, and the sequence control chip selectively receives gray scale values of pixel dots, of which an amount is a second value in the gray scale values of pixel dots, of which an amount is a first value, and sends the same to the data driving chip, wherein the data driving chip obtains the gray scale values of the pixel dots, of which the amount is the first value according to the gray scale values of the pixel dots, of which the amount is the second value, and to output the gray scale values of the pixel dots, of which the amount is the first value after interpolation to drive a liquid crystal display.