Liquid Crystal Display Data Line Reduction via Blue Sub-Pixel Sharing

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Solution Overview

Problem

Conventional liquid crystal panels have a high number of data lines, leading to increased manufacturing complexity and cost, as well as higher power consumption due to the need for multiple data lines for each sub-pixel column.

Innovation Solution

A liquid crystal panel design where blue sub-pixels from every two columns share a single data line, with a method to ensure identical brightness across these sub-pixels by adjusting their data signals, and maintaining separate data lines for red and green sub-pixels, along with a gate and source controller for signal management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If each sub-pixel in each column is coupled to a data line, then display quality is maintained, but the amount of data lines is increased

Engineering Contradiction:
Improvedisplay qualityVSAvoidamount of data lines
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges data line connections by coupling every second blue sub-pixel in adjacent columns to the same data line, reducing the total number of data lines from N to N/2 while maintaining display quality through coordinated signal control

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces dynamic signal adjustment where the data signal applied to shared blue sub-pixels is modified based on their column position (odd or even columns receive different signal values) to compensate for the shared connection and maintain uniform display quality

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If each sub-pixel in each column is coupled to a data line, then display quality is maintained, but the difficulty of manufacturing process is increased

Engineering Contradiction:
Improvedisplay qualityVSAvoiddifficulty of manufacturing process
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent reduces manufacturing complexity by merging data line connections, decreasing the number of separate data line traces that need to be fabricated and connected, thereby simplifying the manufacturing process while maintaining display quality

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If each sub-pixel in each column is coupled to a data line, then display quality is maintained, but the cost of the liquid crystal panel is increased

Engineering Contradiction:
Improvedisplay qualityVSAvoidcost
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent reduces cost by merging data line connections, which decreases the number of data line components, reduces manufacturing complexity, and lowers production costs while maintaining display quality through coordinated signal control

Inventive Principle:
Principle #5Merging (Combining)

4Manufacturing precision

If each sub-pixel in each column is coupled to a data line, then display quality is maintained, but power consumption is increased

Engineering Contradiction:
Improvedisplay qualityVSAvoidpower consumption
Core Design Contradiction:
Manufacturing precisionVSUse of energy by moving object

Solution Approach 1:

The patent reduces power consumption by merging data line connections, which decreases the total number of active data lines and reduces the overall power required for signal transmission while maintaining display quality through coordinated signal control

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9746733B2Liquid crystal display with reduced number of data lines and method for driving the liquid crystal display
Publication Date: 2017.08.29 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
  • US9746733B2 patent drawing
  • US9746733B2 patent drawing
  • US9746733B2 patent drawing

AI summary

The present invention provides a liquid crystal display panel comprising: a display area in which a display area in which an array of pixel units is disposed, each of the pixel unit at least comprises a blue sub-pixel; a plurality of scan lines for providing a plurality of scan signals to the pixel units; and a plurality of data lines for providing a plurality of data signals to the pixel units, wherein the blue sub-pixels of the pixel units in every two separated columns, which are separated by one column, are coupled to a first data line, and the first data line provides an identical data signal to the blue sub-pixels in a same line of the two separated columns. The present invention further provides a method for driving the liquid crystal panel and a liquid crystal display comprising the above mentioned liquid crystal panel.