Double-Sided Display Using Single Panel and Pixel Blanking
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Solution Overview
Problem
Conventional double-sided display devices have high manufacturing costs and thickness due to the need for two separate display sheets attached to a single lighting device.
Innovation Solution
A double-sided display device is implemented using a single display panel with a light diffusion unit and blank means, such as paints or adhesive tape, to alternately block and reveal pixels on both sides, allowing the same image to be viewed from either side while minimizing manufacturing costs and thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate display sheets are attached to a single lighting device, then double-sided display function is achieved, but manufacturing cost increases and thickness increases
Solution Approach 1:
The display panel is segmented into multiple pixel rows, with alternating pixel rows blocked on the front side and alternating pixel rows blocked on the back side. This segmentation allows a single display panel to function as two separate displays by spatially separating the visible pixel regions on each side, eliminating the need for two separate display sheets and reducing manufacturing cost.
Solution Approach 2:
The patent transitions from a single-sided display to a double-sided display by utilizing the third dimension (depth/thickness) of the display panel. By blocking specific pixel rows on the front and back sides, the system creates separate viewing zones in different spatial dimensions, allowing one panel to serve dual purposes without adding lateral or frontal complexity.
2Adaptability or versatility
If two separate display sheets are attached to a single lighting device, then double-sided display function is achieved, but thickness increases
Solution Approach 1:
The display panel is segmented into multiple pixel rows, with alternating pixel rows blocked on the front side and alternating pixel rows blocked on the back side. This segmentation allows a single display panel to function as two separate displays by spatially separating the visible pixel regions on each side, eliminating the need for two separate display sheets and reducing manufacturing cost.
Solution Approach 2:
The patent merges the functionality of two separate display sheets into a single display panel by using blanking means to block specific pixel rows on the front and back sides. This consolidation reduces the number of components and overall thickness while maintaining the double-sided display function.
3Adaptability or versatility
If blank means is used to block pixels, then double-sided display function is achieved, but boundaries are generated and image quality deteriorates
Solution Approach 1:
A light diffusion unit is introduced as an intermediary component between the display panel and the viewer. This light diffusion unit scatters and diffuses the light from the blocked pixel rows, softening the boundaries and reducing the visual impact of the blanking means. The diffusion unit acts as a mediator that maintains the double-sided display function while improving image quality by eliminating sharp boundaries.
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 reduces manufacturing costs and minimizes thickness, providing sharper image quality by eliminating boundaries and allowing a single display panel to function as both sides, while maintaining clear image visibility from either side.
Implementation Method 1
the light diffusion unit is included in the blank means, and thus an image having sharper picture quality can be provided
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3(a)~3(e)
AI summary
The present invention relates to a double-sided display that enables a user to watch images on both sides thererof. A double-sided display device, according to an embodiment of the present invention, comprises: a display panel that has a plurality of pixels arranged in a matrix form and displays an image; a blank means that blanks out some pixels on one surface of the display panel with an arbitrary pattern to prevent an image which the pixels display from being shown and blanks out other pixels, except for the pixels blanked out with the arbitrary pattern, on the other surface of the display panel; and a conversion unit that makes a conversion such that the left and right sides of the image displayed through the pixels blanked out by the blank means and the image displayed through the pixels which are not blanked out are reversed with respect to the one surface of the display panel, and provides the converted images to the display panel. Therefore, a double-sided display can be implemented with one panel, thereby reducing manufacturing costs.