OLED Device Narrow Bezel Design via Overlapping Driving Region
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Solution Overview
Problem
Conventional organic light emitting diode (OLED) devices face difficulties in achieving a narrow bezel due to the non-overlapping border region, which restricts the size of the displaying region relative to the driving region.
Innovation Solution
The OLED device design includes a larger displaying region than the driving region, with the driving unit and circuits strategically positioned to overlap the displaying region, allowing for a smaller border region that can encompass the driving components, thereby enabling a narrower bezel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the driving region is made completely identical in area to the displaying region, then the driving unit can be properly positioned, but the border region becomes larger making narrow bezel difficult to achieve
Solution Approach 1:
The patent applies dimensionality change by allowing the driving region to overlap with the displaying region in the vertical dimension rather than requiring separate horizontal space. The driving unit is positioned in a driving region that extends over the displaying region, enabling circuits to be arranged in overlapping zones rather than requiring additional border space, thus reducing bezel width.
Solution Approach 2:
The patent implements nesting by placing the driving region within or overlapping the displaying region boundaries. The driving unit and its associated circuits are nested within the overall display structure, with the driving region occupying space that also serves the displaying function, thereby eliminating the need for a separate non-overlapping border region.
2Length of moving object
If the driving unit is positioned outside the displaying region, then the organic light emitting units can be fully utilized, but the border region increases making narrow bezel implementation difficult
Solution Approach 1:
The patent merges the driving region with the displaying region by allowing them to overlap spatially. The driving unit is combined with the organic light emitting units in the same physical space, with circuits arranged to share the overlapping region, thereby reducing the overall device footprint and enabling narrow bezel design.
3Area of stationary object
If circuits are disposed outside the displaying region in a border region, then signal routing is simplified, but the displaying region area is reduced relative to the overall device
Solution Approach 1:
The patent uses dimensionality change to route signals through the overlapping vertical space between driving and displaying regions. Wire connections extend vertically through the overlapping region to connect driving transistors with organic light emitting units, allowing signal routing without requiring additional horizontal border space, thus maximizing displaying region area.
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 design facilitates the creation of OLED devices with narrower bezels by optimizing the layout of the driving and displaying regions, enhancing the device's aesthetic and functional capabilities.
Implementation Method 1
When the organic light emitting diode device works, a hole at the anode 111 and an electron at the cathode 112 are recombined at the organic emitting layers 113 and thereby an exciton forms. When the exciton goes back to a ground state, energy is released and thus light rays are emitted.
Data Source
AI summary
The present invention relates to an organic light emitting diode device and a display apparatus corresponding thereto. The organic light emitting diode device comprises a plurality of pixels. Each pixel comprises an organic light emitting unit and a driving unit. The organic light emitting unit is disposed in a displaying region. The driving unit is disposed in a driving region. The driving region overlaps the displaying region and the driving region is smaller than the displaying region. According to the organic light emitting diode device and corresponding display apparatus of the present invention, it is easier to fulfill the organic light emitting diode device with narrow bezel.