Press Key Light-Emitting Structure for Uniform Strip Illumination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The 'starburst' phenomenon occurs in press keys due to non-uniform light distribution, causing poor visual experience and color differences, especially when the light-emitting hole is strip-shaped.
Innovation Solution
A light-emitting structure with a circuit substrate, light-emitting element, light-transmitting body, and light-shielding body, featuring two first light-exiting holes arranged at intervals or partially overlapping, with specific geometric configurations to disperse light emission and improve uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the light-emitting hole is constructed as a strip-shaped hole, then the light emission area is increased, but the light transmitted through the hole has higher intensity at the center position and low intensity at two ends
Solution Approach 1:
The strip-shaped light-emitting hole is divided into multiple segments corresponding to different light-emitting regions. Each segment is controlled by a specific light-emitting element or group of elements with tailored luminous intensity, allowing the large area to emit light uniformly across its entire surface.
Solution Approach 2:
The light-emitting structure implements local quality control by positioning light-emitting elements with different luminous intensities at different locations within the strip-shaped hole. This ensures that each local region contributes appropriately to the overall uniform light emission from the extended area.
2Illumination intensity
If traditional light-emitting elements are used, then the light emission function is achieved, but color difference problems occur due to non-uniform light transmission
Solution Approach 1:
The light-emitting structure is divided into multiple segments with controlled light emission characteristics. By segmenting the light source and controlling each segment's output, the patent ensures consistent color across the entire light-emitting area, eliminating color differences that would otherwise result from non-uniform light transmission.
Solution Approach 2:
Different regions of the light-emitting structure are optimized for specific color characteristics. The light-emitting elements are positioned and configured to ensure that each local region emits light with the appropriate color properties, resulting in uniform color output across the entire strip-shaped light-emitting hole.
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
Enhances light-emitting uniformity, reducing the 'starburst' phenomenon and color differences, providing a better visual experience.
Implementation Method 1
a light-transmitting body, arranged on the circuit substrate and packaging an outside of the light-emitting element, the light-transmitting body having a light-exiting surface facing away from the circuit substrate
Implementation Method 2
a light-shielding body, arranged on the circuit substrate and packaging an outside of the light-transmitting body, the light-shielding body having a light-exiting part arranged on the light-exiting surface
Data Source
AI summary
A light-emitting structure including: a circuit substrate; a light-emitting element, arranged on the circuit substrate; a light-transmitting body, arranged on the circuit substrate and packaging an outside of the light-emitting element and having a light-exiting surface facing away from the circuit substrate; and a light-shielding body, arranged on the circuit substrate and packaging an outside of the light-transmitting body and having a light-exiting part. The light-exiting part has two first light-exiting holes for emitting light. The two first light-exiting holes are arranged at intervals; or, the two first light-exiting holes are partially overlapped, centers of the two first light-exiting holes are arranged at intervals along a first direction, a maximum dimension of an overlapping portion of the two first light-exiting holes in a second direction, which is perpendicular to the second direction, is smaller than a maximum dimension of one of the two first light-exiting holes in the second direction.