Light-Adjusting Display Assembly for VR/AR Luminance Uniformity
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Solution Overview
Problem
Existing VR and AR display devices suffer from uneven luminance due to the optical device receiving less light from the peripheral display region compared to the middle display region, resulting in poor display effects.
Innovation Solution
Incorporating a light adjusting layer on the display panel to deflect and redirect light from the peripheral region to a farther region of the optical device, increasing the amount and intensity of light received by the peripheral area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light is emitted from the peripheral display region of the display panel, then the optical device receives light from the peripheral area, but the received light intensity is insufficient compared to the middle display region, resulting in uneven luminance
Solution Approach 1:
A light adjusting layer is introduced as an intermediary component between the display panel and the optical device. This layer includes light adjusting units (lenses) that mediate the light transmission process, deflecting light from the peripheral display region to increase the amount of light reaching the optical device and improve luminance uniformity.
Solution Approach 2:
The light adjusting layer changes the optical parameters of light from the peripheral display region by deflecting and redirecting light paths. This parameter modification increases the light intensity reaching the optical device from peripheral areas, addressing the uneven luminance issue.
2Productivity
If the display panel emits light from both middle and peripheral regions, then the optical device receives light for display, but the peripheral region contributes less light due to geometric optics limitations, causing poor display effects in peripheral areas
Solution Approach 1:
The light adjusting layer acts as a mediator that enhances light collection from the peripheral display region. By positioning light adjusting units at specific locations, the system intermediates the light path to ensure more peripheral light reaches the optical device, improving overall display quality.
Solution Approach 2:
The light adjusting units introduce a new dimensional aspect to light control by using three-dimensional lens structures to deflect and redirect light. This dimensional approach allows for more effective light management from the peripheral regions compared to traditional two-dimensional display structures.
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
Improves luminance uniformity by reducing the intensity difference between the middle and peripheral regions, enhancing the display quality.
Implementation Method 1
The light adjusting layer is configured to: deflect at least a portion of light emitted to a first region of the optical device and at least a portion of light emitted to an outer side of the optical device among light emitted from the peripheral display region of the display panel
Data Source
AI summary
A display assembly includes a display panel and a light adjusting layer disposed on a light-emitting side of the display panel. The display panel has a middle display region and a peripheral display region, and is configured to project light towards an optical device. An orthographic projection of the light adjusting layer on the display panel at least partially overlaps with the peripheral display region. The light adjusting layer is configured to: deflect at least a portion of light emitted to a first region of the optical device and at least a portion of light emitted to an outer side of the optical device among light emitted from the peripheral display region, after passing therethrough; and emit the deflected light to a second region of the optical device. The second region is farther away from a center of the optical device than the first region.