Transparent Dual-Sided Display Panel Layout Without Left-Right Reversal
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Solution Overview
Problem
Current display devices are limited in their ability to provide a transparent and symmetrical display on both sides, leading to potential reversals of left and right orientations on front and rear surfaces.
Innovation Solution
A display device with a symmetrical arrangement of first and second areas on a display panel, featuring a connection line that electrically connects signal lines between these areas, allowing simultaneous driving of pixels on both sides and incorporating light emitting elements, common electrodes, and a light blocking layer to prevent image interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional display panel structure is used, then the display device can show images on one side, but it cannot provide transparent display on both sides without left-right reversals
Solution Approach 1:
The display panel is divided into a first area and a second area with distinct signal line arrangements. The first signal line is electrically connected to the first pixel in the first area, while the second signal line is electrically connected to the second pixel in the second area. This segmentation allows independent control and optimization of each display area, enabling both-sided transparent display without orientation reversals.
Solution Approach 2:
A connection line is introduced as an intermediary element to electrically connect the first signal line and the second signal line. The connection line extends in a first direction and intersects with the second direction in which the signal lines extend, providing a bridge between the two display areas and enabling coordinated display on both sides of the panel.
2Productivity
If signal lines are extended to connect pixels on both sides, then simultaneous driving of pixels is achieved, but the layout complexity and manufacturing difficulty increase
Solution Approach 1:
The connection line is designed to extend in a first direction that intersects with the second direction of the signal lines. This dimensional arrangement allows the connection line to bridge the first and second signal lines without creating complex planar layouts, simplifying the manufacturing process while enabling simultaneous pixel driving on both display areas.
3Adaptability or versatility
If light emitting elements are disposed on both base layers, then both-sided display is achieved, but light interference between the two sides may occur
Solution Approach 1:
A light blocking layer is introduced to extract or block the harmful light interference between the first and second light emitting elements. The light blocking layer is disposed between the first light emitting element and the second light emitting element, preventing light from one side from interfering with the display on the other side while maintaining the both-sided display capability.
Data Source
AI summary
A display device includes a display panel including a first area and a second area spaced apart from the first area in a plan view. The display panel includes a first base layer including a first pixel, a second base layer facing the first base layer and including a second pixel, a first signal line electrically connected to the first pixel of the first area, a second signal line electrically connected to the second pixel of the second area, and a connection line electrically connecting the first signal line and the second signal line.