Display Panel Viewing-Angle Control for Driver and Passenger
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Solution Overview
Problem
Existing display apparatuses for vehicles have fixed regions that limit the viewability of images, restricting where they can be seen from the driver's or passenger's seat, as they are not adjustable for different viewing angles.
Innovation Solution
A display panel and apparatus with a display area divided into first and second regions, each containing subpixels with specific light emitting elements and lenses that control viewing angles, allowing for independent adjustment of the ratio and area of these regions to optimize viewing angles for both drivers and passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed regions are provided for wide viewing angle mode and narrow viewing angle mode, then the display apparatus can provide different viewing angles for driver and passenger, but the image viewability is limited to specific seats and cannot be adjusted flexibly
Solution Approach 1:
The display panel dynamically adjusts the area ratio of first and second regions by controlling the emission of first and second subpixels through separate emission control signals. This allows the viewing angle characteristics to change dynamically based on operational mode rather than being fixed, resolving the contradiction between providing different viewing angles and maintaining flexibility in image viewability.
Solution Approach 2:
The display area is segmented into first and second regions with different emission characteristics. The first region (first subpixels) provides wide viewing angle while the second region (second subpixels) provides narrow viewing angle. By independently controlling the emission area of each region through separate emission control drivers, the system achieves both differentiated viewing angles and flexible adjustability.
2Reliability
If the display area is divided into fixed first and second regions with different lens regions, then different viewing angles can be controlled, but the ratio and area of these regions cannot be adjusted
Solution Approach 1:
The emission control drivers dynamically adjust the effective area ratio of first and second regions by controlling which subpixels emit light in each frame. This allows the region configuration to adapt to different viewing requirements while maintaining reliable viewing angle control through the fixed lens structures.
Solution Approach 2:
The patent changes the operational parameters of the display by independently controlling the emission timing and duration of first and second subpixels. By adjusting emission control signals, the effective display area ratio changes without physically altering the panel structure, achieving adaptability while maintaining control reliability.
3Ease of operation
If separate emission control signals are used for first and second subpixels, then independent control of different viewing angle regions is achieved, but the device complexity increases
Solution Approach 1:
The emission control drivers perform multiple functions: they control the timing of subpixel emission, adjust the effective display area ratio, and determine which region (first or second) is active. This multi-functionality reduces the need for separate control systems for each function, managing complexity while achieving independent region control.
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
Enables flexible control of viewing angles, allowing images to be viewed optimally from different seats without disturbing the driver, enhancing user experience and safety by adjusting the ratio and area of display regions dynamically.
Implementation Method 1
a first lens region disposed on the first light emitting element, and a second lens region disposed on the second light emitting element, wherein the first lens region and the second lens region control a viewing angle in a first direction to be different
Data Source
AI summary
A display panel includes a display area including a first area in which first subpixels are disposed and a second area in which second subpixels are disposed, wherein each of the first and second subpixels includes a first light emitting element driven through a first light emitting control transistor, a second light emitting element driven through a second light emitting control transistor, a first lens region disposed on the first light emitting element, and a second lens region disposed on the second light emitting element, wherein the first lens region and the second lens region control a viewing angle in a first direction to be different, the first light emitting control transistor of the first subpixel is controlled by a first light emitting control signal, the second light emitting control transistor of the first subpixel is controlled by a second light emitting control signal, the first light emitting control transistor of the second subpixel is controlled by a third light emitting control signal, and the second light emitting control transistor of the second subpixel is controlled by a fourth light emitting control signal.