Terminal Screen Same-Layer Wiring for Optical Device Transmittance
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Solution Overview
Problem
The challenge in increasing the screen-to-body ratio of mobile phones is how to effectively arrange functional devices like cameras and sensors below the screen without compromising their performance due to light transmission issues caused by the screen.
Innovation Solution
The solution involves a terminal screen with a display layer comprising a primary and secondary display area, where the sub-pixels of three different colors are connected by wirings in the same layer, reducing the number of layers and eliminating the need for metal via holes, thereby improving light transmittance and allowing optical devices to be placed below the secondary display area without performance issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If functional devices (camera, light sensor, etc.) are arranged below the mobile phone screen, then the screen-to-body ratio is increased, but the working performance of these optical devices is affected due to light transmission issues
Solution Approach 1:
The display screen is divided into a first display area and a second display area, where the first display area has higher light transmittance for optical devices and the second display area has lower light transmittance for better display效果. This segmentation allows different regions to serve different functions, resolving the contradiction between screen-to-body ratio and optical device performance.
Solution Approach 2:
Different regions of the display screen are assigned different light transmittance characteristics. The first display area positioned above optical devices has optimized light transmittance to ensure proper device operation, while the second display area has different properties for display purposes. This local differentiation resolves the contradiction by making each region suitable for its specific function.
2Strength
If multiple layers and metal via holes are used to connect sub-pixels of different colors, then the display structure is more robust, but the light transmittance of the screen is reduced
Solution Approach 1:
The patent merges the connection of sub-pixels of different colors into the same layer, eliminating the need for multiple layers and metal via holes. All sub-pixels (red, green, blue) are connected within a single layer structure, which reduces the number of interfaces and materials that block light, thereby improving light transmittance while maintaining structural integrity.
Solution Approach 2:
The patent extracts and removes the metal via holes and intermediate layers that were previously used to connect sub-pixels across multiple layers. By taking out these light-blocking elements and replacing them with a same-layer connection approach, light transmittance is significantly improved while the display structure remains functional.
Data Source
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AI summary
The present disclosure provides a terminal screen and a terminal. The terminal screen includes a substrate, and a display layer on the substrate. The display layer includes a primary display area and a secondary display layer. The secondary display area includes a plurality of pixels, each pixel including sub-pixels of at least three different colors, which includes a first color, a second color and a third color. In the secondary display area, a wiring for connecting the sub-pixels of the first color, a wiring for connecting the sub-pixels of the second color, and a wiring for connecting the sub-pixels of the third color are in a same layer.