Curved Display Panel Adhered to Lens Member for Compact HMD
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Solution Overview
Problem
Current head-mounted display (HMD) devices, particularly those using organic light emitting displays, face challenges in reducing size and weight while maintaining image quality and brightness, as they require larger lens members to effectively direct light to the user's eyes.
Innovation Solution
The display apparatus incorporates a curved display panel adhered to a lens member with a light guide and reflector system, which includes a compensation member to further reduce the size of the lens member, allowing for efficient light transmission and image projection without the need for additional support structures like glass, thereby minimizing weight and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a lens member is used to direct light from the display panel to the user's eyes, then light transmission efficiency is improved, but the size and weight of the HMD increase
Solution Approach 1:
The display panel is curved to match the curved surface of the lens member, enabling better light transmission efficiency through the lens while maintaining a compact design. The curvature allows the display panel to be adhered directly to the lens member without requiring additional support structures, thus improving light transmission while minimizing weight increase
Solution Approach 2:
The display panel is integrated directly with the lens member through adhesion, merging two separate components into a unified structure. This eliminates the need for additional support structures between the display panel and lens member, reducing overall weight while maintaining effective light transmission
2Use of energy by moving object
If a lens member is used to direct light from the display panel to the user's eyes, then light transmission efficiency is improved, but the size of the HMD increases
Solution Approach 1:
The curved display panel matches the curved surface of the lens member, optimizing light transmission efficiency while enabling a more compact HMD design. The curvature allows direct adhesion without additional support structures, reducing the overall volume occupied by the optical system
Solution Approach 2:
By integrating the display panel directly with the lens member through adhesion, the patent merges two components into one unified structure. This eliminates the need for additional support structures, thereby reducing the overall size and volume of the HMD while maintaining effective light transmission
3Stability of the object's composition
If additional support structures are added to support the display panel, then structural stability is improved, but weight and size increase
Solution Approach 1:
The curved display panel is adhered to the curved surface of the lens member, creating a stable integrated structure without requiring additional support elements. The curvature provides natural structural stability through the adhesion interface between the display panel and lens member
Solution Approach 2:
The display panel is merged with the lens member through direct adhesion, creating a unified structure that eliminates the need for additional support structures. This integration maintains structural stability while minimizing weight by removing unnecessary support components
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 configuration enables a compact and lightweight HMD with improved image quality by concentrating light and reducing the size of the lens member, allowing for reduced weight and omission of support structures, enhancing user experience in virtual and augmented reality applications.
Implementation Method 1
a lens member directing light from the display panel forwards
Implementation Method 2
a light guide guiding light transmitting through the lens member to a user's eyes
Implementation Method 3
a reflector changing a path of light moving along the light guide
Data Source
AI summary
Provided is a display apparatus reduced in size and weight by reducing a size of a lens member. A head-mounted display apparatus includes a display panel emitting light, a lens member directing light from the display panel forwards, a light guide guiding light transmitting through the lens member to a user's eyes, a reflector and a transflective reflector changing a path of light moving along the light guide, and an adhesive layer disposed between the display panel and the lens member and adhering the display panel and the lens member.