Light Bar Gap Absorber for Spliced Display Emission Matching
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Solution Overview
Problem
The large difference in emission angles between light bars and display panels in splicing display screens affects the overall display effect, leading to inconsistencies in luminance and visual integrity.
Innovation Solution
Incorporating a light absorbing layer in the gaps between light emitting elements of the light bar, which reduces the emission angle of the light bar to match that of the display panel, enhancing compatibility and display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light bar is attached on the display panel to eliminate black edge phenomenon, then the luminance of the display panel is improved, but the emission angle of the light bar is too large compared to the display panel, causing inconsistent luminous effect
Solution Approach 1:
The patent applies local quality by introducing a light absorbing layer specifically in the gap between light emitting elements, rather than modifying the entire light bar structure. This localized modification selectively absorbs side light in the lateral direction while preserving forward light emission, thereby adjusting the emission angle profile locally to match the display panel's characteristics without affecting overall luminance output
Solution Approach 2:
The light absorbing layer acts as an intermediary element between the light emitting elements and the surrounding environment. It mediates the light emission by selectively absorbing side light in the gap region, transforming the light distribution pattern from a wide emission angle to a narrower profile that is compatible with the display panel's emission characteristics
2Area of stationary object
If multiple display panels are spliced together to form large display screens, then the display screen size and application range are expanded, but splicing slits appear between panels, affecting display integrity
Solution Approach 1:
The light bar with adjusted emission angle serves as an intermediary element that covers the splicing slits between display panels. By positioning the light bar at the edges and adjusting its emission angle to match the panel characteristics, it optically masks the splicing slits, making them less visible and improving the overall display integrity while maintaining the expanded screen area
3Adaptability or versatility
If the emission angle of the light bar is reduced to match the display panel, then the compatibility and overall display effect are improved, but the light emitting structure becomes more complex
Solution Approach 1:
The patent reduces device complexity by applying local quality - adding the light absorbing layer only in the gap between light emitting elements rather than redesigning the entire light bar structure. This localized approach achieves emission angle adjustment with minimal structural modification, avoiding the need for complex optical systems or complete structural redesign
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 solution improves the display effect by aligning the emission angles of the light bar and display panel, reducing side light absorption and ensuring consistent luminance across the screen, particularly at splicing slits, thereby enhancing the visual integrity and application range of splicing display screens.
Implementation Method 1
the light absorbing layer is arranged in the first gap between at least two adjacent light emitting elements... the side light of the corresponding light emitting elements can be partially absorbed
Data Source
AI summary
According to an embodiment of the present disclosure, a display screen, a display device, and a method for manufacturing the display screen are disclosed. The display screen includes a display panel and a light bar. The light bar includes an array substrate and a plurality of light emitting elements, and a first gap is provided between two adjacent light emitting elements. A light absorbing layer is arranged in the first gap between at least two adjacent light emitting elements. By arranging the light absorbing layer, the side light of the light emitting elements can be partially absorbed, thereby reducing an emission angle of the light bar.