Backlight setting method of analog instrument panel

• US 20040212579A1
• Filed: 04/22/2003
• Published: 10/28/2004
• Est. Priority Date: 04/22/2003
• Status: Active Grant

• Current Assignee: Jui-Yang Lo
• Original Assignee: Jui-Yang Lo
• Inventors: Lo, Jui-Yang
• Granted Patent: US 7,015,891 B2
• Time in Patent Office: Days
• US Class Current: 345/102
• CPC Class Codes: B60K 2360/33 Illumination features
• CPC Class Codes: B60K 2370/33 Illumination features
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: B60K 37/02 Arrangement of instruments arrangement of lighting devices for dashboards B60Q3/10

Abstract

A backlight setting method of an analog instrument panel is provided. Through a cooperation between a microprocessor and an electronic control circuit, the backlight of the analog instrument panel can be cyclically varied. Moreover, the present invention employs the key set mounted outside the instrument panel to be pressed by the user for choosing a favorite backlight color during the backlight of the instrument panel is mixing changed. Furthermore, because the program design in the microprocessor, the illuminating element, through an asynchronous color mixing theory, can provide various colors to be set by the user for complying the backlight of the analog instrument panel with the like and demands of the user.

Claims

1. A backlight setting method of an analog instrument panel, wherein said backlight has a variation mode loaded in a program of a microprocessor, when a first backlight is changed into a second backlight, because said first backlight becomes weaker and weaker until said first backlight is burned out, a delay phenomenon of said first backlight is formed, and, at the same time, said second backlight becomes more and more brightening, so that said weakening first backlight and said brightening second backlight produce a multiple color mixing efficiency, and when said backlight is changing, a user utilizes an external key set to lock different colors which are favorite;

and so on, when said second backlight is changed into a third backlight, said user is also capable of setting said color.

2. The backlight setting method of an analog instrument panel according to claim 1, wherein said method is achieved through:

a microprocessor for controlling a variation of said backlight through a program burned therein and connected to an electronic control circuit for receiving a setting signal inputted by a key set;

an electronic control circuit connected to said microprocessor, a key set and a RGB illuminating element so as to receive a control signal inputted by said key set, transmit said signal to said microprocessor, and outputting a proceeded result to said RGB illuminating element;

a key set connected to said electronic control circuit and mounted on an external portion of said instrument panel for being used by the user when setting;

a RGB illuminating element for receiving a signal from said microprocessor and transforming said signal into a backlight output through said electronic control circuit;

wherein said backlight of said analog instrument panel is cyclically varied through a cooperation between said microprocessor and said electronic control circuit, and said key set mounted outside said instrument panel is employed to be pressed by said user for choosing a favorite backlight color during said backlight of said instrument panel is mixing changed.

3. The backlight setting method of an analog instrument panel according to claim 1, wherein the color, quantity and arrangement said backlight does not influence a design of said microprocessor and only influence said achieved efficiency.

4. The backlight setting method of an analog instrument panel according to claim 1, wherein said color which is set by said user is memorized by said microprocessor which owns a memorizing function and is still shown on said instrument panel when starting next time only if a reset order is not commanded.