Pixel Array Substrate With Refracting Layer For Sensor Integration
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Solution Overview
Problem
Conventional display devices face challenges in integrating sensors, such as cameras, within the display region without compromising image quality or display functionality, particularly in achieving a full-screen display with enhanced resolution and sensor functionality.
Innovation Solution
A display device design featuring a pixel array with distinct resolution regions and a refracting layer, where a high-resolution region is adjacent to a lower-resolution region overlapping a sensor, with refracting portions having different refractive indices to manage light transmission and concentration, allowing for sensor integration without visible boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a sensor is disposed outside the display region, then sensor functionality is achieved, but the display region cannot extend to the whole surface
Solution Approach 1:
The sensor is disposed beneath the pixel array in a stacked configuration, allowing the sensor to be nested within the display structure. This enables the display region to extend to the whole surface while maintaining sensor functionality, as the sensor operates in a different spatial layer than the display elements.
Solution Approach 2:
The solution transitions from a planar arrangement where sensors must be outside the display region to a three-dimensional stacked arrangement. By utilizing the vertical dimension, both the display region and sensor can coexist within the same footprint, enabling full-screen display with integrated sensor functionality.
2Area of stationary object
If a sensor is disposed in the display region, then full-screen display is achieved, but sensor boundaries become visible and image quality deteriorates
Solution Approach 1:
The pixel array is divided into a first region with first resolution overlapping the sensor and a second region with second resolution higher than the first resolution adjacent to the first region. This local differentiation in resolution allows the sensor boundary to be minimized in the high-resolution display area while maintaining overall full-screen coverage.
Solution Approach 2:
The refracting layer includes a first refracting portion with a first refractive index and a second refracting portion with a second refractive index lower than the first refractive index. By changing the refractive index parameter across different regions, light transmission is optimized to reduce visible sensor boundaries and maintain image quality across the entire display surface.
3Manufacturing precision
If resolution is increased in the region overlapping the sensor, then image quality is improved, but light transmission to the sensor is reduced
Solution Approach 1:
The pixel array uses different resolutions in different regions: a first region with first resolution overlapping the sensor and a second region with second resolution higher than the first resolution. This local quality differentiation allows high resolution where needed for display while maintaining light transmission in the sensor region.
Solution Approach 2:
The refracting layer employs different refractive indices in different portions: a first refracting portion with a first refractive index and a second refracting portion with a second refractive index lower than the first. This parameter change optimizes light transmission to the sensor while maintaining display quality in adjacent regions.
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
This design enables a full-screen display with improved image quality and sensor functionality by minimizing the recognition of sensor boundaries and enhancing luminance, thereby achieving a seamless integration of sensors within the display region.
Implementation Method 1
the refracting layer includes a first refracting portion having a first refractive index and a second refracting portion having a second refractive index lower than the first refractive index
Data Source
AI summary
A display device is provided. The display device includes a pixel array including a plurality of pixels arranged in a matrix, a sensor under the pixel array, and a refracting layer over the pixel array. The pixel array includes a first region having a first resolution and overlapping the sensor and a second region having a second resolution higher than the first resolution and adjacent to the first region. The refracting layer includes a first refracting portion having a first refractive index and a second refracting portion having a second refractive index lower than the first refractive index.