Transparent Display Panel Shielding Layout for Double-Sided Crosstalk Control
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Solution Overview
Problem
Existing transparent display technologies, such as liquid crystal displays, suffer from low transmittance, rapid brightness attenuation, short service life, and high power consumption, as well as issues with crosstalk and slow response speed.
Innovation Solution
A display panel comprising a first substrate and a second substrate with a polymer-stabilized liquid crystal layer in between, where the substrates include sub-pixels with thin film transistors and pixel electrodes, and shielding patterns to control light emission from opposite sides, enhancing transparency and response speed while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If liquid crystal display technology is used for transparent display, then display functionality is achieved, but transmittance is low and power consumption is high
Solution Approach 1:
The display panel is divided into first sub-pixels for front surface display and second sub-pixels for back surface display. Each sub-pixel type has dedicated shielding patterns on specific substrates to control light emission direction. This segmentation allows independent optimization of light transmission paths for front and back displays, improving overall transmittance by preventing light waste and enabling more efficient power utilization.
Solution Approach 2:
Different shielding pattern configurations are applied to different substrate sides based on local display requirements. The first substrate has shielding patterns for front display areas, while the second substrate has shielding patterns for back display areas. This local quality approach ensures that each region of the display panel optimizes light transmission for its specific function, thereby improving transmittance and reducing unnecessary power consumption.
2Speed
If conventional liquid crystal display is used, then display is achieved, but response speed is slow and crosstalk occurs
Solution Approach 1:
The display panel segments front surface display and back surface display into separate sub-pixel groups with dedicated shielding patterns. This segmentation prevents light from front display sub-pixels from reaching back display sensors and vice versa, eliminating crosstalk. The isolated light paths enable faster response speeds as each sub-pixel type operates independently without interference from the other display surface.
Solution Approach 2:
The shielding patterns, which might seem to block light and reduce transmittance, actually convert potential harmful light leakage into beneficial directed light paths. By strategically placing shielding patterns on specific substrates for specific sub-pixel types, the design prevents crosstalk and enables faster response speeds while maintaining high transmittance for the intended display direction.
3Adaptability or versatility
If double-sided transparent display is implemented, then display versatility is improved, but light leakage and crosstalk increase
Solution Approach 1:
The display panel is segmented into first sub-pixels for front surface display and second sub-pixels for back surface display, with each type having dedicated shielding patterns on specific substrates. This segmentation enables double-sided transparent display functionality while preventing light leakage and crosstalk between the two display surfaces, as each sub-pixel type's light is directed only to its intended viewing side.
Solution Approach 2:
Different shielding pattern configurations are applied locally to different substrate sides and sub-pixel types. The first substrate has shielding patterns for front display areas, while the second substrate has shielding patterns for back display areas. This local quality approach enables versatile double-sided display while maintaining high transmittance and preventing light leakage for each specific display region.
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 achieves higher transparency and faster response speed for double-sided transparent displays, while significantly reducing power consumption and minimizing crosstalk between front and back surface displays.
Implementation Method 1
a polymer-stabilized liquid crystal layer provided between the first substrate and the second substrate
Implementation Method 2
By controlling a common electrode and a pixel electrode, an electric field is formed to drive the liquid crystal to deflect
Implementation Method 3
the first substrate in a first sub-pixel is provided with a first shielding pattern, and an orthographic projection of the pixel electrode in the first sub-pixel on a plane of the display panel is within a range of an orthographic projection of the first shielding pattern on the first substrate
Data Source
AI summary
A display panel and a preparation method therefor, and a display device are provided. The display panel includes first and second substrates oppositely provided, and a polymer-stabilized liquid crystal layer; multiple sub-pixels include at least one first sub-pixel emitting light from a side of the second substrate away from the first substrate and at least one second sub-pixel emitting light from a side of the first substrate away from the second substrate; the first substrate in a first sub-pixel has a first shielding pattern, and an orthographic projection of the pixel electrode therein on a display panel plane is within that of the first shielding pattern on the first substrate; the second substrate in a second sub-pixel has a second shielding pattern, and an orthographic projection of the pixel electrode therein on the display panel plane is within that of the second shielding pattern on the second substrate.