Display Panel With Multi-Pixel Data Lines for Dead Space Reduction

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Solution Overview

Problem

Display devices with atypical shaped display regions experience significant dead space due to varying pixel densities, leading to inefficiencies in data line distribution and increased space requirements.

Innovation Solution

The display device is designed with a divided display region, where each data line connects to multiple pixels, and these pixels are connected to different gate lines, allowing for separate scan frequencies and periods to optimize pixel scanning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If data lines are formed in a part where the number of pixels decreases along the pixel row or column in an atypical shaped display region, then the display device can accommodate the atypical shape, but dead space becomes substantially great

Engineering Contradiction:
Improveaccommodation of atypical display shapeVSAvoiddead space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The display region is divided into a first display region with non-constant pixel rows and a second display region with constant pixel rows. Data lines are selectively distributed to different regions: first data lines connect to multiple pixels in the first display region, while second data lines connect to pixels in the second display region. This segmentation allows the display device to accommodate atypical shapes while minimizing dead space by optimizing data line distribution in each region separately.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different data line connection configurations are applied to different regions of the display. In the first display region, data lines connect to multiple pixels (N≥2) to efficiently cover areas with varying pixel densities. In the second display region, data lines connect to one pixel per row to maintain regular scanning. This local differentiation optimizes space utilization while accommodating the atypical overall shape.

Inventive Principle:
Principle #3Local quality

2Reliability

If each pixel row is connected to a separate data line, then each pixel can be addressed individually, but the number of data lines increases and space is wasted

Engineering Contradiction:
Improvepixel addressing accuracyVSAvoidspace utilization
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

Multiple pixels in the same row within the first display region are connected to the same data line (first data line). This merging reduces the total number of data lines required, thereby reducing dead space. The pixels connected to the same data line are distinguished by their connection to different gate lines, maintaining reliable individual addressing while optimizing space utilization.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

A single data line serves multiple pixels (N≥2) in the first display region, making the data line multi-functional. This universal approach allows one data line to address multiple pixels through combination with different gate lines, reducing the overall data line count and minimizing dead space while maintaining addressing reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Area of stationary object

If multiple pixels in the same row are connected to the same data line, then dead space is reduced, but scanning complexity increases

Engineering Contradiction:
Improvedead space reductionVSAvoidscanning control complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The display region is segmented into two distinct regions with different scanning requirements. The first display region uses multi-pixel data line connections with differentiated gate line assignments, while the second display region uses traditional one-pixel-per-data-line connections. This segmentation simplifies the overall scanning control by dividing it into manageable zones with different complexity levels.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Gate lines serve as intermediaries to distinguish between multiple pixels connected to the same data line. By assigning different gate lines to different pixels within the same row, the system resolves the ambiguity of which pixel to activate, managing scanning complexity through the intermediary gate line mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Adaptability or versatility

If the display region has varying pixel density, then atypical shapes are achieved, but uniform scanning becomes difficult

Engineering Contradiction:
Improveatypical display shape capabilityVSAvoidscanning uniformity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The display region is divided into a first display region with non-uniform pixel density (atypical shape) and a second display region with uniform pixel density. Each region is scanned at different frequencies: the first display region is scanned at a higher frequency to compensate for varying pixel densities, while the second display region is scanned at a lower frequency. This segmentation allows atypical shapes to be achieved while maintaining ease of operation through region-specific scanning parameters.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The scanning frequency is made dynamic and region-dependent rather than uniform across the entire display. The first display region operates at a first scan frequency while the second display region operates at a second scan frequency. This dynamic approach accommodates varying pixel densities in atypical shapes while maintaining operational simplicity through adaptive frequency control.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12462744B2Display panel and display device having the same
Publication Date: 2025.11.04 SAMSUNG DISPLAY CO LTD
  • US12462744B2 patent drawing
  • US12462744B2 patent drawing
  • US12462744B2 patent drawing

AI summary

A display panel of a display device includes a display region divided into a first display region and a second display region, pixels disposed in the display region, gate lines each connected to some pixels, a first data line connected to some pixels in the first display region, and a second data line connected to some pixels in the second display region, the first data line is connected to N pixels among the pixels of each of pixel rows in the first display region, where N is a positive integer greater than or equal to 2, the second data line is connected to all of the pixels in a same pixel column in the second display region, the second data line is connected to only one of the pixels in a same pixel row in the second region, and the N pixels are connected to different gate lines, respectively.