Double-Sided Display Panel With Reflective Micro LED Layer

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Solution Overview

Problem

Current self-illuminating double-sided display panels require two display panels bonded together, resulting in increased thickness and power consumption.

Innovation Solution

A single display panel with two micro light emitting diodes and a reflective layer above one of them, allowing for double-sided display without the need for two panels, reducing thickness and power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two display panels are bonded together to achieve double-sided display, then double-sided display function is realized, but the thickness of the display panel increases

Engineering Contradiction:
Improvedouble-sided display functionVSAvoidthickness of display panel
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent merges two display panels into a single integrated panel structure. The first and second display regions are formed on the same panel substrate, with microcavities containing light-emitting elements integrated within the panel layers. This consolidation eliminates the need for bonding two separate panels, achieving double-sided display while reducing overall thickness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from a three-dimensional stacked configuration (two bonded panels) to a planar integrated configuration (single panel with embedded microcavities). By arranging display regions and light-emitting elements within the same panel plane and utilizing vertical microcavities, the design achieves double-sided functionality without increasing the horizontal thickness dimension.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If two display panels are bonded together to achieve double-sided display, then double-sided display function is realized, but power consumption increases

Engineering Contradiction:
Improvedouble-sided display functionVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent combines two display functions into a single panel with shared structural components and control circuits. The first and second display regions share the same panel substrate, driving circuits, and power supply system, reducing redundant energy consumption associated with operating two separate panels and their individual control systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single panel structure serves multiple functions simultaneously - the first display region and second display region both operate from the same panel, sharing common resources including driving circuits, power supply, and structural support, thereby improving overall system efficiency and reducing total power consumption compared to two independent panels.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If two display panels are used for double-sided display, then double-sided display is achieved, but device complexity increases

Engineering Contradiction:
Improvedouble-sided display capabilityVSAvoidnumber of display panels
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent integrates two display functions into one unified panel structure. The first and second display regions, along with their respective microcavities and light-emitting elements, are all formed within a single panel substrate, reducing the number of discrete components from two panels to one and simplifying the overall device architecture.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent segments the single panel into distinct functional regions - first and second display regions with embedded microcavities - allowing independent operation of each display side while maintaining a unified structural foundation. This segmentation enables double-sided functionality without requiring two complete panel assemblies.

Inventive Principle:
Principle #1Segmentation

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

The solution enables a thinner and more energy-efficient double-sided display by directing light from the micro light emitting diodes towards both surfaces of the panel, eliminating the need for a second panel and improving display performance.

Implementation Method 1

a reflective layer disposed above the second micro light emitting diode... light of the second micro light emitting diode is emitted toward a back surface of the display panel

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS11263955B2Display panel and electronic device
Publication Date: 2022.03.01 SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
  • US11263955B2 patent drawing
  • US11263955B2 patent drawing

AI summary

A display panel and an electronic device are provided. The display panel includes a driving substrate, an insulating layer, which is provided with a first receiving groove and a second receiving groove, a first micro light emitting diode disposed in the first receiving groove, a second micro light emitting diode disposed in the second receiving groove, and a first reflective layer disposed above the second micro light emitting diode. The display panel and the electronic device can reduce a thickness of the display panel.