Vehicle Display Panel Surface Geometry for Image Clarity
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Solution Overview
Problem
Conventional vehicle display devices suffer from indistinct visual recognition of image light during lighting and irregular reflection of external light during extinguishing, leading to a deterioration in appearance attractiveness.
Innovation Solution
A vehicle display device with a display panel featuring a planar part and projecting surface parts on its front surface, where the area occupancy of the planar part is adjusted to be equal to or larger than the projecting surface parts, ensuring sharp image light transmission and reduced irregular reflection, thereby inhibiting visual recognition of the boundary between the transmitting window and light shielding part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an embossed surface is formed on the display panel to diffuse external light, then the visual recognition of the boundary between transmitting window and light shielding part is inhibited, but the image light becomes indistinct and the display panel appears white
Solution Approach 1:
The invention divides the front surface into different regions with different properties: a planar part (first region) that maintains sharp image light transmission and a curved part (second region) that diffuses external light. This local differentiation allows each region to perform its specific function optimally without compromising the other
Solution Approach 2:
The front surface is segmented into multiple functional regions: the planar part for sharp display and the curved part for light diffusion. The area ratio between these regions is controlled to balance the competing requirements of image clarity and boundary invisibility
2Manufacturing precision
If the planar part area occupancy is increased to improve image light transmission, then the sharp display is enhanced, but the ability to diffuse external light may be reduced
Solution Approach 1:
The invention optimizes the area ratio parameter between the planar part and curved part to achieve the best balance. By controlling this geometric parameter, the system achieves both sharp image transmission and effective external light diffusion without compromising either function
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 achieves sharp display during lighting and inhibits visual recognition as a white color during extinguishing, enhancing the appearance attractiveness by preventing external light from easily returning to the front side.
Implementation Method 1
A transmission region of a front surface of the display panel that is located at least on the front side of the transmitting window is occupied by a planar part that is formed in a flat surface shape along the screen
Implementation Method 2
a plurality of projecting surface parts that project from the planar part into a curved projecting surface shape
Implementation Method 3
when the external light entering from the front side into the display panel is irregularly reflected by the embossed surface
Implementation Method 4
the external light entering from the front side of the display panel into the surrounding part of the transmitting window is absorbed by the light shielding part which light-shields this surrounding part
Data Source
AI summary
A vehicle display device includes an indicator that luminously displays a display image on its screen by lighting and stops the luminous display of the display image by extinction, and a display panel that includes a light shielding part on a rear surface of the display panel. The light shielding part light-shields a surrounding part of a transmitting window, through which an image light of the display image is transmitted to be capable of being visually recognized from a front side. A transmission region of a front surface of the display panel that is located at least on the front side of the transmitting window is occupied by a planar part that is formed in a flat surface shape along the screen, and a plurality of projecting surface parts that project from the planar part into a curved projecting surface shape. An area occupancy of the planar part at the transmission region is adjusted to be equal to or larger than an area occupancy of all the plurality of projecting surface parts at the transmission region.