Full-screen display device of automobile taillights

• US 20150251591A1
• Filed: 05/26/2014
• Published: 09/10/2015
• Est. Priority Date: 09/08/2013
• Status: Active Grant

• Current Assignee: Zhanping Lu
• Original Assignee: Zhanping Lu
• Inventors: Lu, Zhanping
• Granted Patent: US 9,321,397 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60Q 1/0076 Switches therefor B60Q1/1446, B60Q1/343, B60Q1/40 take precedence
• CPC Class Codes: B60Q 1/0094 Arrangement of electronic circuits separated from the light source, e.g. mounting of housings for starter circuits for discharge lamps arrangements being part of the light source holder F21V17/06, F21S43/195
• CPC Class Codes: B60Q 1/22 for reverse drive
• CPC Class Codes: B60Q 1/2607 comprising at least two indicating lamps
• CPC Class Codes: B60Q 1/2696 Mounting of devices using LEDs
• CPC Class Codes: B60Q 1/34 for indicating change of drive direction B60Q1/22 takes precedence
• CPC Class Codes: B60Q 2400/20 Multi-color single source or LED matrix, e.g. yellow blinker and red brake lamp generated by single lamp

Abstract

A full-screen display device of automobile taillights relates to a light-emitting display technology for automobile taillights, including left and right taillights, a linked switch and a light-emitting display controlling circuit. The left and the right taillights are divided into three light-emitting zones I, II and III, wherein light-emitting diodes (LEDs), respectively for displaying red, yellow and white light, are arranged in each light-emitting zone. The light-emitting display controlling circuit includes a signal inputting circuit, a single-chip microcomputer controlling circuit, a metal-oxide-semiconductor field-effect transistor (MOS FET) switching constant-current source circuit, a light-emitting executive circuit and a power source. The signal inputting circuit is connected with a signal inputting terminal of a single-chip microcomputer; a signal outputting terminal of the single-chip microcomputer is connected with an inputting terminal of the MOS FET switching constant-current source circuit; and the MOS FET switching constant-current source circuit is connected in series with the LEDs. One advantage of the present invention is that emitted colors and brightness of each light-emitting zone are controlled by a single-chip microcomputer program. When a single function is chosen, the three light-emitting zones all display light and no light-emitting zone is idle, which makes a full use of an effective light-emitting display area of each taillight. The present invention has beautiful and striking light-emitting display, clear and intuitional light-emitting display effect, and is able to effectively reduce traffic accidents.

Claims

1. A full-screen display device of automobile taillights, comprising left and right taillights, a linked switch and a light-emitting display controlling circuit, wherein:

said left taillight and said right taillight are respectively divided into three light-emitting zones I, II and III, wherein light-emitting diodes (LEDs), respectively for displaying red light, yellow light and white light, are arranged in each said light-emitting zone; and

said light-emitting display controlling circuit comprises a signal inputting circuit, a single-chip microcomputer controlling circuit, a metal-oxide-semiconductor field-effect transistor (MOS FET) switching constant-current source circuit, a light-emitting executive circuit and a power source, wherein;

said signal inputting circuit is connected with a signal inputting terminal of a single-chip microcomputer;

a signal outputting terminal of said single-chip microcomputer is connected with an inputting terminal of said MOS FET switching constant-current source circuit; and

said MOS FET switching constant-current source circuit is connected in series with said LEDs.

2. The full-screen display device of automobile taillights, as recited in claim 1, wherein:

linked switching buttons, which are linked with an automobile operating mechanism and output corresponding signals, are successively defined as “

braking”

, “

reversing”

, “

night mode (hand switch)”

, “

double flashing” and

“

left and right steering”

;

switching button signals generated by said linked switching buttons, respectively through optical couplers U1, U2, U3, U4, U5 and U6, are successively connected with inputting terminals P0.0, P0.1, P0.2, P0.3, P0.4 and P0.5 of an inputting port P0 of said single-chip microcomputer;

outputting terminals P1.0-P1.7 of a first outputting port P1 and an outputting terminal P2.0 of a second outputting port P2 of said single-chip microcomputer are successively connected with gate electrode circuits of MOS FET switching constant-current source circuits VT1-VT9;

drain electrodes of said MOS FET switching constant-current source circuits VT1-VT9 are successively connected in series with LEDs, LED1-LED9 in said left taillight;

an emitted color order of said LED1-LED9 is successively red, yellow, white, red, yellow, white, red, yellow and white, wherein;

said LED1-LED3, respectively for displaying red, yellow and white light, are arranged in said light-emitting zone I;

said LED4-LED6, respectively for displaying red, yellow and white light, are arranged in said light-emitting zone II; and

said LED7-LED9, respectively for displaying red, yellow and white light, are arranged in said light-emitting zone III;

outputting terminals P2.1-P2.7 of said second outputting port P2 and outputting terminals P3.0-P3.1 of a third outputting port P3 of said single-chip microcomputer are successively connected with gate electrode circuits of MOS FET switching constant-current source circuits VT10-VT18;

drain electrodes of said MOS FET switching constant-current source circuits VT10-VT18 are successively connected in series with LEDs, LED 10-LED 18 in said right taillight; and

an emitted color order of said LED10-LED18 is successively red, yellow, white, red, yellow, white, red, yellow and white, wherein;

said LED10-LED12, respectively for displaying red, yellow and white light, are arranged in said light-emitting zone I of said right taillight;

said LED13-LED15, respectively for displaying red, yellow and white light, are arranged in said light-emitting zone II of said right taillight; and

said LED16-LED18, respectively for displaying red, yellow and white light, are arranged in said light-emitting zone III of said right taillight.

3. The full-screen display device of automobile taillights, as recited in claim 1, wherein an outputting terminal P3.2 of said single-chip microcomputer is further connected with a sound circuit, wherein:

said outputting terminal P3.2 of a third outputting port P3 of said single-chip microcomputer is connected with a base inputting terminal of a triode switching circuit VT19; and

a collector outputting terminal of said triode switching circuit is connected in series with a sound relay K.

4. The full-screen display device of automobile taillights, as recited in claim 2, wherein an outputting terminal P3.2 of said single-chip microcomputer is further connected with a sound circuit, wherein:

said outputting terminal P3.2 of said third outputting port P3 of said single-chip microcomputer is connected with a base inputting terminal of a triode switching circuit VT19; and

a collector outputting terminal of said triode switching circuit is connected in series with a sound relay K.