Micro-LED Pixel Controller Layout for Wider Viewing Angles
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Solution Overview
Problem
The viewing angle of micro-LED displays is limited due to the height difference between the micro pixel controller and the inorganic light-emitting elements, which restricts the design flexibility and performance of self-emitting displays.
Innovation Solution
The display apparatus is designed with micro pixel controllers positioned in the row space between pixels, allowing each pixel to be a quadrangular region formed by inorganic light-emitting elements arranged vertically, with the micro pixel controllers being longer in the row direction and having a vertical length less than the row space, thereby eliminating viewing angle limitations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a micro pixel controller is used to control pixels, then pixel control functionality is improved, but viewing angle is limited due to height difference between controller and light-emitting elements
Solution Approach 1:
The patent transitions from a three-dimensional arrangement where the micro pixel controller is positioned above the pixel array to a two-dimensional planar arrangement where the controller is integrated within the same plane as the pixels. This dimensional change eliminates the height difference that caused viewing angle limitations while preserving the controller's functionality.
Solution Approach 2:
The micro pixel controller is nested within the pixel structure by positioning it in the row space between pixels rather than placing it separately above the array. This nesting approach allows the controller to be embedded in the existing pixel layout, eliminating the height differential that restricted viewing angles.
2Ease of operation
If micro pixel controllers are positioned above pixels, then control functionality is achieved, but design freedom is restricted due to structural constraints
Solution Approach 1:
The patent repositions the micro pixel controller from a vertical arrangement (above pixels) to a horizontal arrangement (within the same plane), enabling more flexible design configurations and eliminating structural constraints that limited design freedom.
3Manufacturing precision
If inorganic light-emitting elements are arranged vertically in pixels, then color expression is improved, but viewing angle is limited by controller height difference
Solution Approach 1:
The micro pixel controller is nested within the row space between vertically arranged pixels, allowing the vertical arrangement of light-emitting elements for color expression to be maintained while eliminating the viewing angle limitation caused by height difference.
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 enhances the viewing angle and design freedom of micro-LED displays by ensuring the micro pixel controllers do not obstruct the horizontal viewing angle, improving the display's performance and usability.
Implementation Method 1
at least three inorganic light-emitting elements that emit light of different colors
Data Source
AI summary
A display apparatus is provided having a plurality of pixels, which are arranged in M columns and N rows and arranged with a constant row space therebetween. The display apparatus includes a plurality of display modules and a housing configured to support the plurality of display modules. Each of the plurality of display modules includes a plurality of pixel packages each including some pixels of the plurality of pixels, and a plurality of micro pixel controllers each controlling the pixels included in each of the plurality of pixel packages. Each of the micro pixel controllers is disposed in the row space between the plurality of pixels to be long in a horizontal direction that is a row direction.