Display Panel Light-Transmitting Hole Barrier Dam and Separation Component
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Solution Overview
Problem
Display panels with openings face challenges in effectively realizing functions like under-screen photography or detection due to varying lighting conditions, which affect image display and image collection efficiency.
Innovation Solution
A display panel design featuring a light-transmitting hole, a display area, a peripheral area, and a transition area, including a driving backplane, barrier dams, separation components, light-emitting devices, photoelectric sensing devices, and an encapsulation layer, which allows for ambient light detection and improved image collection without occupying display area space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If photoelectric sensing devices are integrated into the display panel, then ambient light detection capability is improved, but device complexity increases
Solution Approach 1:
The photoelectric sensing device is integrated within the display panel structure by placing it in the transition area between the light-transmitting hole and the display area. This merging approach allows the sensing function to be combined with the existing display structure, enabling ambient light detection without adding a separate independent device, thus improving adaptability while controlling complexity.
2Area of stationary object
If the transition area is used for photoelectric sensing devices, then display area is preserved, but manufacturing precision requirements increase
Solution Approach 1:
The barrier dam is designed with a specific height that is greater than the thickness of the encapsulation layer, creating a localized structural feature in the transition area. This local quality differentiation allows the photoelectric sensing device to be positioned precisely without affecting the overall display area, while the specific dimensional relationships provide clear manufacturing guidelines to manage precision requirements.
3Reliability
If barrier dam height is greater than encapsulation layer thickness, then water vapor intrusion is prevented, but device complexity increases
Solution Approach 1:
The encapsulation structure is segmented into distinct functional layers with the barrier dam forming a separate protective element. The barrier dam is positioned to extend beyond the encapsulation layer thickness, creating a stepped structure that segments the protection mechanism. This segmentation provides clear functional differentiation for moisture protection while maintaining a relatively simple overall structure through the use of discrete, well-defined components.
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
The solution enables effective ambient light detection, adjustment of display brightness, and improved imaging effects by integrating photoelectric sensing devices without compromising the display area, while also preventing water vapor intrusion through the light-transmitting hole.
Implementation Method 1
at least one photoelectric sensing device, disposed between the barrier dam and the first separation component
Data Source
AI summary
The present disclosure relates to a display panel. The display panel has a light-transmitting hole, a display area, a peripheral area and a transition area between the light-transmitting hole and the display area. The display panel includes a driving backplane, a barrier dam, a first separation component, a light-emitting device, a photoelectric sensing device and an encapsulation layer. The barrier dam is disposed on the driving backplane and at least surrounds a partial area of the light-transmitting hole. The first separation component is disposed on the driving backplane, the first separation component and the barrier dam are distributed at intervals in a radial direction of the light-transmitting hole, the first separation component includes a first separation pillar at least surrounding the partial area of the light-transmitting hole, and a sidewall of the first separation pillar is provided with a cut-off groove.