Pixel Circuit Lens Layout for Directional Vehicle Display Viewing
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Solution Overview
Problem
Display apparatuses in vehicles face challenges in adjusting their viewing angles to minimize distractions for drivers while providing information to both drivers and passengers effectively, as existing technologies do not adequately manage light emission signals to optimize viewing angles based on user modes.
Innovation Solution
A display apparatus comprising a first pixel circuit with multiple transistors and light emitting elements, along with lenses disposed on these elements, allows for adjustable viewing angles by using different light emission signals and lens configurations to control the direction and range of light emission, enabling modes for shared or restricted content display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display apparatus provides information to both drivers and passengers, then the versatility and information coverage are improved, but the viewing angle control and driver distraction management become more complex
Solution Approach 1:
The display apparatus is divided into multiple display regions (first display region for driver, second display region for passenger) with separate light emitting elements. Each region can be independently controlled to emit light in specific directions, allowing different viewing angles for different users without requiring complex overall system control.
Solution Approach 2:
Different viewing angle characteristics are assigned to different regions of the display. The first light emitting elements are configured to emit light primarily toward the driver's direction, while the second light emitting elements emit light toward the passenger's direction. This local differentiation simplifies the overall control complexity by assigning fixed viewing characteristics to each region.
2Object-affected harmful factors
If the display apparatus limits content to prevent driver distraction, then driving safety is improved, but the information accessibility for passengers is reduced
Solution Approach 1:
The display content is segmented into different types (first type for driver, second type for passenger) and displayed in corresponding separate regions. The driver's region displays critical driving information with limited content types to prevent distraction, while the passenger's region displays additional entertainment or information content, allowing both safety and accessibility to be maintained simultaneously.
Solution Approach 2:
The directional light emission acts as an intermediary mechanism that physically separates the information streams for driver and passenger. By controlling the light emission direction of different light emitting elements, the system ensures that passenger-facing content does not interfere with driver attention, effectively mediating between safety requirements and information accessibility.
3Adaptability or versatility
If multiple light emitting elements are used to control viewing angles, then the viewing angle adjustment capability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
Instead of using a single complex light emitting element with adjustable viewing angles, the system segments the display into multiple fixed light emitting elements, each oriented toward a specific user direction. This approach trades component count for manufacturing simplicity, as each element can be independently optimized and assembled without requiring complex adjustable mechanisms.
Solution Approach 2:
The viewing angle control function is merged into the physical arrangement and optical design of multiple light emitting elements rather than being achieved through active adjustment mechanisms. By combining the directional emission capabilities of multiple elements in a fixed configuration, the system achieves viewing angle control that is simpler to manufacture than adjustable single-element systems.
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 enables the display apparatus to adjust its viewing angles based on user modes, ensuring that critical information is displayed effectively for drivers without distracting them, while allowing passengers to access additional content, thereby improving usability and safety.
Implementation Method 1
at least one first lens disposed on each of the first light emitting element, the second light emitting element, and the third light emitting element, and at least one second lens disposed on the fourth light emitting element
Data Source
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AI summary
A display apparatus can comprise a first pixel circuit including a first driving transistor, a first transistor receiving a first light emission signal from a gate driving circuit, a second transistor receiving a second light emission signal from the gate driving circuit, a first light emitting element connected to the first transistor and a second light emitting element connected to the second transistor, a second pixel circuit including a second driving transistor, a third transistor receiving the first light emission signal, a fourth transistor receiving the second light emission signal, a third light emitting element connected to the third transistor and a fourth light emitting element connected to the fourth transistor, at least three first lenses disposed on the first light emitting element, the second light emitting element and the third light emitting element, respectively, and at least one second lens disposed on the fourth light emitting element.