Image Display Key Illumination Control for OSD Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In digital television broadcast receiving apparatuses, the on-screen display (OSD) often conceals the desired image or information when activated, leading to operational challenges, especially in low-light environments, and existing solutions do not effectively balance OSD functionality with key operability.
Innovation Solution
An image displaying apparatus with a lighting key module that employs a first light source for key illumination only during key operation, reducing power consumption and enhancing operability by using a two-step operation for key validation, and utilizes key lighting states to represent OSD display settings and volume levels when OSD is off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If OSD display is activated to show volume and channel information, then user guidance is improved, but the desired image or information on the screen is concealed
Solution Approach 1:
The patent segments the display function by introducing a separate OSD display layer that can be independently controlled from the main image display. The OSD display is segmented into different modes (normal display mode and OSD display cut mode) allowing selective visibility of information without permanently obscuring the main image.
Solution Approach 2:
The patent implements dynamic control of OSD display visibility through two display modes. In normal display mode, OSD information is continuously displayed. In OSD display cut mode, the OSD display is temporarily hidden to show the underlying image. The system dynamically switches between these modes based on user operations, allowing the display content to adapt between information presentation and image viewing.
2Ease of operation
If key illumination is provided continuously to enhance operability in low-light environments, then user visibility of keys is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic illumination of keys using a light source that activates only during specific periods - when a key is pressed or when the device is in a power-saving mode. The illumination is turned off after a preset time period without key operation. This periodic action provides key visibility when needed while significantly reducing continuous power consumption.
Solution Approach 2:
The key illumination system is designed to activate automatically in response to user interaction (key press detection) without requiring continuous power supply. The system serves itself by detecting user needs through key press events and activating illumination only when necessary, thereby reducing overall power consumption while maintaining operability.
3Speed
If key operation is validated immediately to respond quickly to user input, then operational responsiveness is improved, but erroneous operations may occur in low-light conditions
Solution Approach 1:
The patent implements preliminary illumination of keys before validation occurs. When a key is pressed, the light source is activated to illuminate the key and surrounding area, allowing the user to confirm the key identity before the operation is validated. This preliminary action ensures accurate key identification while maintaining quick response by validating the operation immediately after illumination confirms the key press.
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 enhances user operability in low-light conditions, prevents erroneous operations, reduces power wastage, and maintains OSD convenience by using key lighting states to represent volume levels and OSD settings, ensuring the image scene is not obscured.
Implementation Method 1
a light source configured to illuminate the plurality of keys
Data Source
Figure 1
Figure 2
Figure 3
AI summary
According to one embodiment, an image displaying apparatus (41) includes a plurality of keys (71a - 71f) provided for respective items to operate the image displaying apparatus (41), and a first light source (21a, 21b) configured to illuminate the plurality of keys (71a ∼ 71f), wherein the image displaying apparatus (41) turns on the first light source (21a, 21b) when one of the plurality of keys (71a - 71f) is operated without making the key operation valid, turns off the first light source (21a, 21b) when one of the plurality of keys is operated in a preset period after a preceding key operation is performed and makes the key operation valid.