Transparent Display Structure for Camera Integration

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Solution Overview

Problem

The integration of an image collection device in mobile terminals for photographing functions compromises the aesthetics and reduces the display area ratio, as it requires a hole in the front, which affects the layout efficiency of display devices.

Innovation Solution

A display structure with a transparent first area for the image collection device, where the organic light emitting diodes are placed, and the driving circuits are positioned outside this area, allowing for a higher display area ratio and improved aesthetics by maintaining transparency and efficient wiring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a hole is opened in the front of the mobile terminal for installing the image collection device, then the photographing function is implemented, but the aesthetics and display area ratio are reduced

Engineering Contradiction:
Improvephotographing functionVSAvoiddisplay area ratio
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent extracts the driving circuit from the light emission area and places it in the non-light-emitting area. This separation allows the light emission area to be fully utilized for display purposes while the extracted driving circuit occupies the previously wasted non-emitting space, thereby increasing the display area ratio without compromising the photographing function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent utilizes the non-light-emitting area (a different spatial dimension/zone within the display structure) to accommodate the driving circuit. By transitioning the driving circuit placement from the light emission plane to the non-emission plane, the display area is maximized while still providing space for necessary circuitry.

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

2Adaptability or versatility

If a hole is opened in the front of the mobile terminal for installing the image collection device, then the photographing function is implemented, but the aesthetics are affected

Engineering Contradiction:
Improvephotographing functionVSAvoidaesthetics
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

The driving circuit is extracted from the light emission area and relocated to the non-light-emitting area, eliminating the need for holes or openings in the front display. This extraction allows the front surface to maintain its aesthetic integrity while still accommodating the image collection device and providing space for driving circuits elsewhere in the structure.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If the driving circuit is formed in the circuit formation area (annular area) and organic elements are formed in the light emission area, then the display function is achieved, but the layout efficiency is reduced

Engineering Contradiction:
Improvedisplay functionVSAvoidlayout efficiency
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the driving circuit and organic light-emitting elements into a single integrated display structure where the driving circuit is positioned in the non-light-emitting area and the organic elements are positioned in the light emission area. This unified integration eliminates the need for separate circuit formation areas and improves layout efficiency while maintaining display functionality.

Inventive Principle:
Principle #5Merging (Combining)

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 the integration of an image collection device without shading the display area, enhancing the display area ratio and aesthetics, while allowing for richer pattern display and improved viewing effects.

Implementation Method 1

Each pixel includes an organic light emitting diode, and each organic light emitting diode includes a first electrode, a second electrode, and an organic light emitting layer provided between the first electrode and the second electrode

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentEP3629321B1Display structure, display panel and display device
Publication Date: 2024.02.28 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3629321B1 patent drawingFigure 1
  • EP3629321B1 patent drawingFigure 2
  • EP3629321B1 patent drawingFigure 3~4

AI summary

The present disclosure relates to a display structure, a display panel, and a display device. The display structure includes: a plurality of pixels and a plurality of first driving circuits. The plurality of pixels are provided in a first area of the display structure. The plurality of pixels are arranged based on a preset pattern. An area of the preset pattern is less than that of the first area. Each pixel includes sub-pixels of a plurality of colors, and each sub-pixel includes an organic light emitting diode. The plurality of first driving circuits are provided in a second area outside the first area, connected to the organic light emitting diodes, and configured to drive the organic light emitting diodes to emit light.