Spliced Display Module Privacy Layer for Side-View Brightness Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Seamless spliced display technologies face issues with inconsistent visual brightness between display sub-screens and compensation devices, leading to uneven brightness at side viewing angles due to differing luminance and attenuation degrees.
Innovation Solution
A display module comprising a main display panel, a secondary display panel, and a privacy protection function layer where the orthographic projection of the privacy protection layer overlaps both panels, simultaneously restricting side outgoing light and reducing brightness differences between the display parts, thereby improving display uniformity and assembly stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If compensation display devices are added above the non-display areas to achieve seamless spliced display effect, then the seamless display effect is improved, but the visual brightness consistency between display areas and compensation devices deteriorates at side viewing angles
Solution Approach 1:
The patent applies different functional layers to different regions: the privacy protection function layer is specifically applied to the compensation display device region, while the display area maintains its original structure. This local differentiation allows the compensation region to have controlled light emission characteristics that match the display area at side viewing angles, resolving the brightness inconsistency without affecting the seamless display effect
Solution Approach 2:
The patent modifies the optical parameters of the compensation display device by introducing the privacy protection function layer, which changes the light emission and attenuation characteristics. This parameter adjustment ensures that the luminance and attenuation degrees of the compensation device match those of the display area at side viewing angles, thereby maintaining visual brightness consistency
2Ease of manufacture
If privacy protection function layer is disposed only on secondary display panel, then the assembly process is simplified, but the brightness uniformity between display part and secondary display panel deteriorates at side viewing angles
Solution Approach 1:
The patent extends the privacy protection function layer from only the secondary display panel region to include both the display part and the secondary display panel region. This localized application ensures that both regions have consistent light emission characteristics, achieving brightness uniformity at side viewing angles while maintaining a relatively simple assembly process
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 effectively reduces brightness differences between display areas, enhancing display uniformity and quality at side viewing angles, while simplifying the arrangement and assembly of the privacy protection function layer, thus improving the overall display quality and service life.
Implementation Method 1
a privacy protection function layer disposed on a side of the secondary display panel away from the main display panel; and an orthographic projection of the privacy protection function layer on the main display panel overlaps the display part and the secondary display panel
Data Source
AI summary
A display module includes a main display panel having a light-emitting side and including a display part and a non-display part, a secondary display panel disposed on the light-emitting side of the main display panel and corresponding to the non-display part, and a privacy protection function layer disposed on a side of the secondary display panel away from the main display panel. An orthographic projection of the privacy protection function layer on the main display panel overlaps the display part and the secondary display panel.