Display Panel Optical Structure for Seamless Tiled Boundaries
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Large-sized display devices face increased defect rates and decreased productivity due to the number of pixels, leading to a sense of discontinuity and reduced image immersion when multiple display devices are tiled together, as boundary portions between them can create a disjointed visual experience.
Innovation Solution
A display device configuration featuring light emitting areas, light blocking areas, and non-display areas with specific wavelength conversion and transmissive parts, along with a color filter layer, to minimize the visibility of boundaries between adjacent display devices, enhancing image immersion by preventing recognition of these areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display devices are connected to form a large-sized display, then the display area is increased, but seams between adjacent display devices become visible causing discontinuity
Solution Approach 1:
A non-display area is introduced as an intermediary region between adjacent display devices. This non-display area contains light transmissive parts that allow light to pass through, creating visual continuity across the seam boundaries while physically separating the display devices. The light transmissive parts act as mediators that bridge the visual gap between adjacent displays.
Solution Approach 2:
The non-display area is designed with spatially varying properties: light transmissive parts are positioned at specific locations to maintain visual continuity, while light blocking parts are positioned to prevent unwanted light leakage. This local differentiation of optical properties within the non-display area optimizes both seam visibility reduction and color purity.
2Manufacturing precision
If light blocking areas are increased to improve color purity, then color accuracy is improved, but light transmission efficiency decreases
Solution Approach 1:
The non-display area implements local quality differentiation by positioning light transmissive parts and light blocking parts at specific locations. Light transmissive parts are placed where light transmission is needed for visual continuity, while light blocking parts are placed where color isolation is required. This spatial differentiation optimizes both color purity and light transmission efficiency without requiring uniform light blocking across the entire non-display area.
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 the visibility of boundaries between tiled display devices, thereby improving image immersion and maintaining high display quality by utilizing light emitting elements, wavelength converters, and color filters to ensure seamless integration of adjacent display areas.
Implementation Method 1
The first wavelength shifter may convert a wavelength of light from the light emitting element into red light. The second wavelength shifter may convert the wavelength of the light from the light emitting element into green light.
Implementation Method 2
The first light transmissive part and the second light transmissive part may include a scatterer. The scatterer may scatter the light from the light emitting element.
Data Source
AI summary
A display device includes a display area including a plurality of light emitting area including a first light emitting area, a second light emitting area, a third light emitting area, and a light blocking area disposed between adjacent ones of the plurality of light emitting areas, and a non-display area disposed adjacent to the display area, light emitting elements disposed on a substrate in each of the first light emitting area, the second light emitting area, and the third light emitting area, and a light conversion layer disposed on the light emitting elements. The light conversion layer includes a first wavelength conversion part disposed in the first light emitting area, a second wavelength conversion part disposed in the second light emitting area, a first light transmissive part disposed in the third light emitting area, and a bank disposed in the light blocking area. The non-display area is disposed on an edge of the display area. A second light transmissive part is further disposed in the non-display area.