Transparent Cable PMOLED Bezel-less Camera Lighting
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Solution Overview
Problem
Existing bezel-less screen terminal devices face challenges in meeting the lighting requirements of front-facing cameras due to limited light transmission through small physical via holes, which affects camera performance.
Innovation Solution
Incorporating a PMOLED display panel with a transparent cable that has high light transmittance, positioning the camera below the transparent cable area to enhance light transmission, and using a combination of PMOLED and AMOLED display panels to achieve a bezel-less screen while ensuring normal camera operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a small physical via hole is disposed between pixels of the display panel above the camera, then the front-facing camera can receive light, but the light transmission is limited and cannot meet the lighting requirement of the camera
Solution Approach 1:
The patent changes the material parameter of the cable from opaque to transparent, specifically using transparent conductive materials like ITO (indium tin oxide) or IZO (indium zinc oxide) for the data cable. This parameter change allows light to pass through the cable region, effectively increasing the light transmission area above the camera without requiring a larger via hole.
2Area of stationary object
If a relatively large display panel is used to achieve a bezel-less screen, then the screen-to-body ratio increases, but the camera lighting requirement cannot be met due to limited light transmission through small via holes
Solution Approach 1:
The patent changes the optical parameter of the cable from opaque to transparent by using transparent conductive materials. This allows the display panel to maintain a large area for bezel-less screen design while the transparent cable region above the camera provides sufficient light transmission path for the front-facing camera to receive adequate light.
Solution Approach 2:
The patent uses composite material structure where transparent conductive materials (such as ITO or IZO layers) are integrated into the cable structure. This composite approach combines the electrical conductivity function of the cable with the optical transparency needed for light transmission, enabling both large display panel area and sufficient camera lighting.
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 effectively meets the lighting requirements of the camera while maintaining a bezel-less screen design by utilizing high light transmittance transparent cables and strategically positioning the camera and display panels, ensuring optimal camera performance and display quality.
Implementation Method 1
a transparent cable, and an area in which an orthographic projection of a lighting region of the camera on a display surface of the PMOLED display panel is located is located in a display area in which the transparent cable is located
Data Source
AI summary
A terminal device includes a display screen module, wherein the display screen module comprises a passive matrix organic light-emitting diode (PMOLED) display panel, and an electrode cable of the PMOLED display panel comprises a transparent cable and a camera, wherein an orthographic projection of a lighting region of the camera on a display surface of a PMOLED display panel is located in the display region in which the transparent cable is located.