Terminal Screen-to-Body Ratio via Ambient Light Sensor Gap
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional intelligent terminal designs with ambient light sensors face challenges in achieving a high screen-to-body ratio due to the need for a large light incident region, which increases the edge width and reduces the screen-to-body ratio, and also require additional light-transmitting spaces that can increase costs and volume.
Innovation Solution
The terminal design incorporates an ambient light sensor located on the inner side of the side frame, below the display panel, with a light-transmitting gap between the display panel and the side frame, and uses a first ink with high diffusion capability to scatter ambient light, allowing it to enter the sensor through a narrow gap, thereby improving the screen-to-body ratio and reducing the need for additional light-transmitting space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the ambient light sensor is arranged on the peripheral side of the display panel with a large light incident region, then the sensing accuracy is improved, but the edge region width increases and screen-to-body ratio decreases
Solution Approach 1:
The patent relocates the ambient light sensor from the peripheral side (2D plane arrangement) to the inner side of the side frame below the display panel (3D spatial arrangement). This dimensional change allows the sensor to receive ambient light through a narrow light-transmitting gap between the display panel and side frame, eliminating the need for a large light incident region and enabling ultra-narrow edges while maintaining sensing accuracy
Solution Approach 2:
The patent introduces a light-transmitting gap as an intermediary structure between the display panel and side frame. This gap serves as a light transmission channel that allows ambient light to reach the sensor located on the inner side of the side frame, resolving the contradiction by providing a compact light path that doesn't require large edge regions
2Measurement precision
If additional light-transmitting spaces are provided for the ambient light sensor, then the sensing function is improved, but the terminal volume and cost increase
Solution Approach 1:
The patent merges the light-transmitting gap (necessary for display panel assembly) with the light transmission path for the ambient light sensor. By utilizing the existing gap between the display panel and side frame for dual purposes (assembly tolerance and light transmission), the design eliminates the need for additional dedicated light-transmitting spaces, reducing terminal volume and cost while maintaining sensing capability
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 achieves a high screen-to-body ratio greater than 90%, allows for a full-screen implementation, and ensures accurate ambient light sensing with a flexible and cost-effective solution that meets the requirements of ambient light intensity sensing.
Implementation Method 1
The first ink has a high diffusion capability. The first ink scatters the ambient light of different angles, and further irradiates light on the light sensing surface, to be sensed by the ambient light sensor.
Implementation Method 2
Ambient light can enter the light sensing surface after undergoing a plurality of times of optical path changes in the first ink
Data Source
AI summary
An embodiment of this application discloses a terminal. The terminal includes a side frame, a front cover, a back cover, a display panel, and an ambient light sensor. The front cover and the back cover respectively cover two opposite sides of the side frame. The display panel is fastened to one side of the front cover facing the back cover. An outer peripheral side of the display panel and an inner peripheral side of the side frame are disposed opposite to each other and form a light-transmitting gap therebetween. The light-transmitting gap forms a first projection on the front cover. Alight sensing surface of the ambient light sensor forms a second projection on the front cover. The terminal has a relatively high screen-to-body ratio.