Under Display Camera Pixel Density Gradient Circuit Area
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Solution Overview
Problem
In under display camera (UDC) systems, the camera light-receiving area has a low pixel density to increase light transmittance, leading to heterogeneous visibility of the under display area due to the presence of circuits for driving pixels, which decreases pixel density and affects the overall display quality.
Innovation Solution
An electronic device with a display that includes a normal area, a camera light-receiving area with lower pixel density, and a circuit area with pixel density higher than the camera light-receiving area but lower than the normal area, where the circuit transfers a drive voltage to pixels in the camera light-receiving area, utilizing a bottom metal layer for data lines to maintain visibility and light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the camera light-receiving area has a low pixel density to increase light transmittance, then light transmittance is improved, but the visibility of the under display area deteriorates due to heterogeneous appearance
Solution Approach 1:
The patent applies local quality by assigning different pixel densities to different regions of the display. The circuit area has a third pixel density that is higher than the camera light-receiving area but lower than or equal to the normal area. This creates a gradient structure where each region has optimized pixel density for its specific function, resolving the contradiction between light transmittance and visual uniformity.
2Adaptability or versatility
If the area of the circuit area is increased to accommodate circuits for driving pixels, then the functionality is improved, but the pixel density of the circuit area is decreased leading to heterogeneous visibility
Solution Approach 1:
The patent implements local quality by creating a circuit area with a specific third pixel density that differs from both the normal display area and the camera light-receiving area. This intermediate pixel density allows the circuit area to accommodate driving circuits while maintaining adequate visibility and reducing heterogeneous appearance, thus resolving the contradiction between functionality and visual uniformity.
3Device complexity
If the pixel density of the circuit area is decreased to accommodate more circuits, then the device complexity is reduced, but the visibility of the under display area deteriorates
Solution Approach 1:
The patent applies parameter changes by optimizing the third pixel density of the circuit area to a specific range that balances circuit accommodation and visibility. Rather than simply decreasing pixel density, the patent finds an optimal intermediate value that allows sufficient circuit space while maintaining acceptable visual appearance, thus resolving the contradiction between device complexity and visibility.
Data Source
AI summary
An electronic device is provided. The electronic device includes a display, a display driver integrated circuit (IC) that controls the display, a camera disposed in a display area, and a processor connected with the display driver IC and the camera. The display includes a normal area having a first pixel density, a camera light-receiving area where the camera is disposed and at least one pixel is disposed, the camera light-receiving area having a second pixel density lower than first pixel density, and a circuit area provided between the normal area and the camera light-receiving area and having a third pixel density, and a circuit that transfers a drive voltage to the pixel disposed in the camera light-receiving area is disposed in the circuit area. The third pixel density is lower than or equal to the first pixel density, and the third pixel density is higher than the second pixel density.