Display Panel Circuit Layout for Sensor-Ready Transmissive Areas

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Solution Overview

Problem

Current display panels lack an efficient structure to integrate additional functions such as sensors or cameras within the display area while maintaining high light transmittance and image quality, leading to limitations in their versatility and functionality.

Innovation Solution

A display panel design featuring a transmissive area within the display area, with light-emitting diodes and sub-pixel circuits arranged in specific configurations to allow for the integration of components like sensors or cameras, utilizing a conductive bus line and gate lines that bypass the transmissive area to maintain high transmittance and image quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional functional components (sensors, cameras) are integrated into the display area, then the versatility and functionality of the display panel is enhanced, but the light transmittance and image quality may be compromised

Engineering Contradiction:
ImprovefunctionalityVSAvoidlight transmittance
Core Design Contradiction:
Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

The display area is divided into multiple display areas (first, second, third display areas) with different functional zones. The transmissive area is segmented within the second display area, allowing different regions to serve different purposes - some for light transmission and others for functional components, thus maintaining both functionality and light transmittance

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the display panel are assigned different properties: the first display area contains sub-pixel circuits for image display, the second display area contains the transmissive area for light transmission, and the third display area contains additional functional components. This local differentiation allows each region to optimize its specific function without compromising overall performance

Inventive Principle:
Principle #3Local quality

2Ease of manufacture

If sub-pixel circuits are arranged in a conventional grid pattern, then the manufacturing process is simple, but the integration of additional functions within the display area is limited

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidintegration capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The gate lines are configured to extend not only in the first direction (row direction) but also in the second direction (column direction) to connect to sub-pixel circuits in the third display area. This two-dimensional gate line configuration enables additional functional integration without complicating the manufacturing process, as it builds upon the conventional grid structure

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

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables the integration of additional functions like sensors or cameras within the display area while ensuring high light transmittance and image quality, enhancing the panel's versatility and functionality.

Implementation Method 1

a plurality of light-emitting diodes located in a first display area, a second display area, and a third display area

Methodology Applied
Scientific EffectLight-emitting diode: Light Emitting Diode

Implementation Method 2

the second display area is inside the first display area and includes a transmissive area

Methodology Applied
Scientific EffectLight transmission: Light

Data Source

PatentUS20230395770A1Display panel and electronic device including the same
Publication Date: 2023.12.07 SAMSUNG DISPLAY CO LTD
  • US20230395770A1 patent drawing
  • US20230395770A1 patent drawing
  • US20230395770A1 patent drawing

AI summary

A display panel includes a plurality of first sub-pixel circuits in a first display area electrically connected to first light-emitting diodes in the first display area, and subpixel circuits in the third display area, wherein first sub-pixel circuits arranged in a (k)th row (k is a natural number) in a first direction are connected to a first gate line, first sub-pixel circuits arranged in a (k+1)th row are connected to a second gate line, and first sub-pixel circuits arranged in a (k+2)th row are connected to a third gate line, wherein the first and third gate lines are respectively and electrically connected to two sub-pixel circuits adjacent to each other in a second direction intersecting the first direction in the third display area, and the second gate line is not electrically connected to the sub-pixel circuits located in the third display area and bypasses the second display area.