Micro Pixel Controller Segmentation for Display Module Manufacturing
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Solution Overview
Problem
Current display technologies, such as LCDs, are complex and limited in thickness and design flexibility due to the need for backlight units and liquid crystal layers, whereas emissive displays with inorganic light-emitting elements like micro-LEDs offer better contrast, efficiency, and durability but require complex manufacturing processes.
Innovation Solution
A display module and apparatus featuring a thin-film transistor circuit on a separate chip for driving inorganic light-emitting elements, with micro pixel controllers that include slope waveform generators for controlling pixel brightness, pulse amplitude modulation, and pulse width modulation circuits, allowing for easier circuit inspection and replacement, and simplified manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a thin-film transistor circuit is integrated directly on the module substrate, then manufacturing complexity increases, but circuit inspection and replacement become difficult
Solution Approach 1:
The patent divides the transistor circuit into separate chips that can be independently inspected and replaced, rather than integrating it directly into the module substrate. This segmentation allows for easier manufacturing while maintaining the ability to inspect and replace individual circuit components without affecting the entire display module.
2Device complexity
If micro pixel controllers are integrated into the module substrate, then device complexity increases, but design flexibility is reduced
Solution Approach 1:
The micro pixel controllers are implemented as separate chips rather than being integrated into the module substrate. This allows for greater design flexibility as the controllers can be independently designed, tested, and replaced without affecting the overall module structure, while maintaining manageable device complexity through modular architecture.
3Reliability
If inorganic light-emitting elements are used, then brightness and durability improve, but manufacturing process complexity increases
Solution Approach 1:
The inorganic light-emitting elements are mounted as separate components on the module substrate rather than being integrated during chip fabrication. This segmentation simplifies the manufacturing process by allowing the light-emitting elements to be added as discrete components after the transistor circuits are manufactured and tested, while maintaining the high brightness and durability characteristics of inorganic LEDs.
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 creation of thin, flexible, and high-resolution display modules with improved brightness and durability, facilitating the production of large-area screens and various applications like signage and wearables, while reducing manufacturing complexity and enhancing image quality.
Implementation Method 1
a first inorganic light-emitting element disposed at a first position of the display panel and configured to emit first light
Implementation Method 2
a slope waveform generator configured to generate a slope waveform used to control a brightness of each of the at least two pixels
Data Source
AI summary
A display module is provided. The display module includes a module substrate; a plurality of pixels provided on an upper surface of the module substrate; and a plurality of micro pixel controllers, each of the plurality of micro pixel controllers being configured to control at least two pixels among the plurality of pixels and being provided in a space between the at least two pixels on the upper surface of the module substrate, wherein at least one of the plurality of micro pixel controllers includes a slope waveform generator configured to generate a slope waveform used to control a brightness of each of the at least two pixels.