Optical Compensation Module for Angle-Dependent Pattern Display
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Solution Overview
Problem
The challenge is to display a pattern, such as a trademark, on a display device with a narrow bezel without compromising its aesthetic appearance or viewing effect, as traditional methods of displaying patterns on the bezel are no longer feasible due to the shrinking size of the bezel.
Innovation Solution
Incorporating an optical compensation module with a first and second compensation area, where the phase compensation values differ, allowing the pattern to be invisible at normal viewing angles but visible at specific angles, achieved through the use of a light emitting display module and optical compensation layer with polarizing layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the bezel is made narrower to improve appearance and compact size, then the aesthetic appearance and compactness are improved, but the ability to display trademarks or slogans on the bezel is lost
Solution Approach 1:
The patent moves the trademark display from the traditional 2D bezel surface to the 3D display screen space by utilizing angular viewing differences. The pattern is embedded in the optical compensation layer and only becomes visible when viewed from specific angles (greater than 10 degrees from normal), effectively using the viewing angle dimension to resolve the contradiction between narrow bezel and trademark visibility.
Solution Approach 2:
The optical compensation layer is divided into different regions with different optical properties. The first area has different phase compensation characteristics than the second area, creating a pattern that is locally distinguishable only at specific viewing angles. This local differentiation allows trademark display without affecting the overall screen appearance during normal viewing.
2Loss of information
If a pattern is displayed on the screen at normal viewing angles, then the advertising effect is improved, but the viewing quality and aesthetic appearance are degraded
Solution Approach 1:
The patent applies different optical compensation values to different areas of the display screen, creating a pattern that is only distinguishable at specific viewing angles. The first area and second area have different phase compensation characteristics, but this difference is only perceptible when viewed from angles greater than 10 degrees from the normal viewing direction, thus maintaining viewing quality while enabling advertising.
Solution Approach 2:
The visibility of the pattern is dynamic rather than static - it transitions from invisible at normal viewing angles to visible at oblique angles. This dynamic characteristic allows the screen to maintain high viewing quality during normal use while automatically displaying the advertisement pattern when viewed from the sides, resolving the contradiction between advertising effectiveness and viewing quality.
3Ease of manufacture
If the phase compensation value is made uniform across the screen, then the manufacturing simplicity is improved, but the ability to display patterns at specific angles is lost
Solution Approach 1:
The patent implements local variation in phase compensation values within the optical compensation layer. Different areas (first area and second area) have different phase compensation characteristics, enabling pattern formation at specific viewing angles. This localized differentiation is achieved through selective application of optical compensation films with different properties to different regions of the display screen.
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
This solution enables the display of a pattern on the screen only at certain viewing angles, maintaining the aesthetic appeal and viewing quality of the display device while allowing for effective advertising without being visible to the viewer at normal angles.
Implementation Method 1
The optical compensation layer is disposed between the light emitting display module and the first polarizing layer along the transmission direction of the image beam and has a first compensation area and a second compensation area which forms a pattern, wherein the phase compensation value of the first compensation area is different from the phase compensation value of the second compensation area.
Implementation Method 2
The optical compensation module allows the image beam to penetrate through and includes a first polarizing layer and an optical compensation layer.
Data Source
AI summary
The disclosure provides a display device and an optical compensation module. The display device includes a light emitting display module and the optical compensation module. The optical compensation module is disposed on the light emitting display module along the transmission direction of an image beam emitted by the light emitting display module, and includes: a first polarizing layer and an optical compensation layer. The optical compensation layer is disposed between the light emitting display module and the first polarizing layer along the transmission direction of the image beam and has a first compensation area and a second compensation area which forms a pattern, wherein the phase compensation value of the first compensation area and the phase compensation value of the second compensation area are different. The display device and the optical compensation module have the effect of displaying the pattern on the display panel at a specific angle.