Segmented Display Panel for Under-Display Module Light Transmission

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Solution Overview

Problem

Existing electronic devices face challenges in achieving uniform transmittance across different regions, particularly where electronic modules are integrated, leading to inefficiencies in input and output operations.

Innovation Solution

The electronic device incorporates a display panel with distinct regions of varying transmittance, including a first and second display region with enhanced transmittance, utilizing a blocking pattern and pixel circuits with specific material layers and connections to optimize light transmission and module integration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If electronic modules are integrated below the display panel, then the functionality of the electronic device is enhanced, but the transmittance of the display panel in those regions deteriorates

Engineering Contradiction:
ImprovefunctionalityVSAvoidtransmittance
Core Design Contradiction:
Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

The display panel is divided into multiple regions with different transmittance characteristics. The first display region has a first transmittance value while the second display region (where electronic modules are located) has a second transmittance value that is higher than the first. This local differentiation allows the panel to maintain display quality in the first region while providing sufficient light transmission for electronic module operations in the second region.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If the transmittance is increased in regions with electronic modules, then the input and output operations are improved, but the display quality in those regions deteriorates

Engineering Contradiction:
Improveinput and output operationsVSAvoiddisplay quality
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The display panel is segmented into a first display region and a second display region with different transmittance characteristics. The first display region maintains standard transmittance for optimal display quality, while the second display region has enhanced transmittance to facilitate electronic module operations. This segmentation allows each region to be optimized for its specific function without compromising the other.

Inventive Principle:
Principle #1Segmentation

3Illumination intensity

If a blocking pattern is introduced to control transmittance, then the transmittance distribution is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvetransmittance distributionVSAvoidmanufacturing complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The blocking pattern is integrated into the existing pixel electrode structure, combining the functions of the pixel electrode and the blocking pattern into a single integrated component. This merging approach allows the transmittance control function to be achieved without adding separate, independent blocking pattern structures, thereby reducing manufacturing complexity while still achieving the desired transmittance distribution.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250338764A1Electronic device and method for manufacturing the same
Publication Date: 2025.10.30 SAMSUNG DISPLAY CO LTD
  • US20250338764A1 patent drawing
  • US20250338764A1 patent drawing
  • US20250338764A1 patent drawing

AI summary

An electronic device includes: a display panel including a display region including a first display region and a second display region having a higher transmittance than the first display region and an electronic module below the second display region of the display panel, wherein the display panel includes: a base layer; a plurality of first pixel electrodes on the base layer and in the first display region; a plurality of second pixel electrodes on the base layer and in the second display region; a common electrode on the plurality of first pixel electrodes and the plurality of second pixel electrodes and in which a plurality of openings are defined; and a blocking pattern spaced apart from the common electrode with the plurality of second pixel electrodes interposed therebetween and having a plurality of transmission portions overlapping the plurality of openings.