Prismatic Optical Element for Multi-Screen Frame Masking
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Solution Overview
Problem
The frames surrounding multi-screen displays can affect viewing quality and cause uneven brightness when multiple screens are assembled, leading to suboptimal display quality and visual experience.
Innovation Solution
A display apparatus with a prismatic structure optical element is used between adjacent screens, covering their frames and display areas, which refracts light to minimize frame visibility and adjusts brightness to ensure uniformity, improving the display quality and visual experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display screens are assembled together to form a multi-screen display system, then the display area and information presentation capability are improved, but the frames surrounding each screen become visible and affect viewing quality
Solution Approach 1:
A prismatic optical element is introduced as an intermediary component between adjacent display screens. This element refracts light to redirect the viewer's line of sight away from the frames and toward the display areas, effectively masking the frames without physically removing them. The prism structure acts as an optical mediator that transforms the visual path to eliminate frame visibility while preserving the expanded display area.
Solution Approach 2:
The patent applies a light-absorbing coating (such as black coating) to the frames surrounding each display screen. This coating reduces the reflectivity and visibility of the frames by absorbing incident light, making the frames less conspicuous to viewers. This approach modifies the optical properties of the frame surfaces to minimize their visual impact on the overall display quality.
2Object-affected harmful factors
If a prismatic optical element is used to mask frames between screens, then frame visibility is reduced, but uneven brightness appears in the display image
Solution Approach 1:
The patent implements local brightness compensation by adjusting the backlight intensity in specific regions. The control unit detects the uneven brightness caused by the prismatic optical element and applies different brightness levels to different portions of the display - specifically increasing brightness in areas where the prism causes darkening. This localized adjustment restores overall brightness uniformity while maintaining the frame-masking function of the prism.
Solution Approach 2:
The patent dynamically adjusts the backlight intensity parameter in response to the optical effects of the prismatic element. By changing the brightness parameter locally in different display regions, the system compensates for the uneven lighting distribution introduced by the prism. This parameter adjustment ensures that the perceived brightness remains uniform across the entire multi-screen display area.
3Object-affected harmful factors
If the included angle between adjacent display screens is reduced to minimize frame visibility, then frame visibility improves, but the viewing angle and immersive experience are compromised
Solution Approach 1:
The prismatic optical element serves as an intermediary that allows the screens to be positioned at larger included angles for better viewing experience while still masking the frames. The prism refracts light to redirect the viewer's perception away from the frames, enabling the system to maintain both large screen angles and frame invisibility simultaneously.
Solution Approach 2:
The patent employs asymmetric optical design in the prismatic elements, where the prism angles and orientations are specifically tailored to match the asymmetric arrangement of multiple screens. This asymmetric configuration optimizes the light refraction paths to effectively mask frames while preserving the intended viewing angles and immersive display geometry.
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 prismatic structure optical element enhances the display quality by reducing frame visibility and achieving uniform brightness across the display, resulting in an improved visual experience when multiple screens are used together.
Implementation Method 1
The prismatic structure optical element directs the light emitting out from the display area covered by the prismatic structure optical element to a viewer's eyes
Data Source
AI summary
Display apparatus with multi screens and corresponding display signal control method are provided. The display apparatus with multi screens includes a plurality of display screens arranged adjacent one by one and a prismatic structure optical element. At least two adjacent display screens of the plurality of display screens have an included angle between 90-180 degrees. Each display screen includes a display area and a frame surrounding the display area. The prismatic structure optical element is arranged between the two adjacent display screens with the included angle and to cover two adjacent side edges of the frames of the two adjacent display screens and a portion of the two display areas. The prismatic structure optical element includes a base and a plurality of prisms disposed on the base and arranged adjacent one by one. An extension direction of the prism is substantially parallel to the two adjacent side edges.