Display Module Fringe LED Layout for Seamless Image Splicing
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Solution Overview
Problem
Splicing technology for large format displays results in discontinuous images due to the space occupied by side traces, which prevents high-resolution displays from achieving seamless pixel continuity.
Innovation Solution
A display module design where an LED display panel is positioned on the fringe region of a backlight module, with light emitted by the LED panel passing through a sealant to the user, and utilizing depolarizing structures or scattering particles within the sealant to adjust polarizing angles, ensuring light rays can pass through polarizers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If splicing technology is used to produce large format displays, then the display size can be increased, but the side traces occupy space and cause discontinuous images
Solution Approach 1:
The patent extracts the LED display panel from the traditional LCD panel structure and places it on the fringe region of the backlight module. This separation allows the LED panel to emit light directly through the sealant without being constrained by the LCD panel's pixel structure, thereby eliminating the discontinuity caused by side traces while maintaining large display size
Solution Approach 2:
The sealant acts as an intermediary medium between the LED display panel and the user's eye. The patent utilizes the sealant's optical properties (specifically its ability to transmit polarized light) to allow LED-emitted light to pass through to the user's eye, creating a seamless visual connection that eliminates the discontinuity problem
2Length of stationary object
If side traces are developed to connect backside chips, then the frame width can be reduced, but the distance between outermost pixels and display edge remains larger than pixel spacing
Solution Approach 1:
The patent transitions from a two-dimensional pixel arrangement to a three-dimensional light emission structure. By placing the LED display panel on the fringe region and utilizing the sealant's thickness as an additional dimension, the light can travel through the sealant to reach the user's eye, effectively eliminating the need for large pixel spacing and achieving continuous images
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 image continuity by allowing light from the LED panel to traverse the sealant, reducing visual discontinuities and enhancing image quality.
Implementation Method 1
the LED display panel can emit the light ray toward the sealant. As a result, the light ray emitted by the LED display panel can enter the user's eyes through the sealant of the LCD panel
Implementation Method 2
The backlight module includes at least an optical film disposed on the light exiting region, and the optical film is located at one side of the backlight module facing to the LCD panel. The optical film extends from the light exiting region to the fringe region of the backlight module and covers the LED display panel
Data Source
AI summary
A display module which includes a backlight module, a LCD panel and a LED display panel is provided. The backlight module has a light exiting region and a fringe region adjacent to the light exiting region. The LCD panel which is disposed on the backlight module includes a sealant. The LED display panel which is disposed on the fringe region of the backlight module has a surface, while at least a part of the sealant overlaps the LED display panel in the normal direction of this surface. The backlight module includes at least one optical film disposed on the light exiting region, and the optical film is located at one side of the backlight module facing to the LCD panel. The optical film extends from the light exiting region to the fringe region of the backlight module and covers the LED display panel.