CN205751475U - A kind of brightness adjustable OLED drive circuit - Google Patents

Abstract

This utility model provides a kind of brightness adjustable OLED drive circuit, including mu balanced circuit, microprocessor, driving chip, OLED, intensity of illumination sensor, vibrating sensor and intervalometer.Brightness of the present utility model adjustable OLED drive circuit can automatically carry out the regulation of brightness according to ambient brightness, is also provided with vibrating sensor and intervalometer simultaneously, closes for timing and can light device according to the contact movement of human body.

Description

A kind of brightness adjustable OLED drive circuit

Technical field

This utility model relates to OLED actuation techniques field, in particular to a kind of adjustable OLED of brightness Component driving circuit.

Background technology

OLED is the active that one utilizes Organic Light Emitting Diode (being called for short OLED) display image Luminous display device, its display mode is different from traditional LCD display mode, it is not necessary to backlight, and There is the advantages such as contrast is high, response is fast, be very popular display of new generation.

Each pixel of OLED be by an OLED and correspondence for driving this The pixel-driving circuit composition of OLED.Existing drive circuit uses control signal to make drive circuit pair OLED is driven, but, regardless of daytime or night, the brightness constancy of OLED, at dim ring Under border, brightness is the highest not only bad to human eye, and power consumption is big.

Utility model content

This utility model purpose is to provide a kind of brightness adjustable OLED drive circuit, can be according to ring Border brightness carries out the regulation of brightness automatically, is also provided with vibrating sensor and intervalometer, for timed-shutoff simultaneously Close and device can be lighted according to the contact movement of human body.

Above-mentioned purpose of the present utility model is realized by the technical characteristic of independent claims, dependent claims The technical characteristic of independent claims is developed in the way of selecting else or be favourable.

For reaching above-mentioned purpose, the utility model proposes a kind of brightness adjustable OLED drive circuit, Including mu balanced circuit, microprocessor, driving chip, OLED, intensity of illumination sensor, vibrating sensing Device and intervalometer, wherein:

The power supply circuits that the input of described mu balanced circuit is externally connected, supply for OLED drive circuit Electricity；

Described microprocessor is sequentially connected with driving chip, OLED, drives OLED by driving chip Device is luminous；

Described intensity of illumination sensor is connected with described microprocessor, for induced environment intensity of illumination and feed back To microprocessor, microprocessor controls driving chip to OLED according to intensity of illumination and/or its change Drive；

Described intervalometer is connected with described microprocessor, and microprocessor timing based on intervalometer controls OLED Device was automatically switched off after the time lighting setting；

Described vibrating sensor is connected with described microprocessor, for induction vibration signal, microprocessor based on The vibration signal that vibrating sensor transmits controls to light OLED；

Described microprocessor uses PIC16F690 single-chip microcomputer, and described mu balanced circuit uses ASM1117 voltage stabilizing core Sheet, described intensity of illumination sensor uses TSL2561 illumination sensing chip, and described driving chip uses NCL30160 driving chip.

In further embodiment, described vibrating sensor is Piezoelectric film Vibrating Sensors.

In further embodiment, described Piezoelectric film Vibrating Sensors use MEAS company model be The Piezoelectric film Vibrating Sensors of LDT1-028K.

The beneficial effects of the utility model are: OLED can automatically carry out the tune of brightness according to ambient brightness Joint, it is to avoid under dim condition the brightness of OLED lamp too high wasting while also protect vision.It addition, Be also provided with vibrating sensor and intervalometer, for timing close and can according to the contact movement of human body point Bright device, more intelligent and hommization.

Accompanying drawing explanation

Fig. 1 is the theory diagram of the OLED drive circuit of this utility model embodiment.

Fig. 2 is the physical circuit figure of drive circuit in Fig. 1.

Detailed description of the invention

In order to know more about technology contents of the present utility model, especially exemplified by specific embodiment and coordinate institute's accompanying drawings explanation As follows.

As it is shown in figure 1, the brightness of the present embodiment adjustable OLED drive circuit include mu balanced circuit, Microprocessor, driving chip, OLED, intensity of illumination sensor, vibrating sensor and intervalometer. The power supply circuits that the input of mu balanced circuit is externally connected, for OLED drive circuitry；Micro-place Reason device is sequentially connected with driving chip, OLED, drives OLED luminous by driving chip；Light Being connected with described microprocessor according to intensity sensor, induced environment intensity of illumination also feeds back to microprocessor, micro- Processor controls the driving chip driving to OLED according to intensity of illumination and/or its change；Intervalometer with Described microprocessor connects, and microprocessor timing based on intervalometer controls OLED and lighting setting It is automatically switched off after time；Vibrating sensor is connected with described microprocessor, for induction vibration signal, micro-place Reason device controls to light OLED based on the vibration signal that vibrating sensor transmits.Microprocessor uses PIC16F690 single-chip microcomputer, described mu balanced circuit uses ASM1117 voltage stabilizing chip, and described intensity of illumination senses Device uses TSL2561 illumination sensing chip, and described driving chip uses NCL30160 driving chip.

It addition, in the present embodiment, vibrating sensor uses the pressure that model is LDT1-028K of MEAS company Conductive film vibrating sensor.

Fig. 2 is the concrete schematic diagram of drive circuit in Fig. 1, and i.e. described drive circuit includes chip NCL30160, the CS pin of described chip NCL30160 connects and has the resistance R1 of ground connection, chip Connect on the ROT pin of NCL30160 and have the resistance R2 and electric capacity C1 being in series, the not common of electric capacity C1 End ground connection, the VCC pin of chip NCL30160 is connected on the common port of resistance R2 and electric capacity C1, Connect on the VIN pin of described chip NCL30160 and have the electric capacity C5, chip NCL30160 of ground connection LX pin on connect and have inductance L1 and be connected with the positive pole of diode by resistance R3, two described poles The negative pole of pipe is connected on VIN pin.

OLED of the present utility model can automatically carry out the regulation of brightness according to ambient brightness, it is possible to avoids Under dim condition the brightness of OLED lamp too high wasting while also protect vision.It addition, be also provided with Vibrating sensor and intervalometer, close for timing and can light device according to the contact movement of human body, More intelligent and hommization.

Although this utility model is disclosed above with preferred embodiment, so it is not limited to this utility model. This utility model art has usually intellectual, without departing from spirit of the present utility model and model In enclosing, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is when regarding claim Book defined person be as the criterion.

Claims (3)

1. a brightness adjustable OLED drive circuit, it is characterised in that include mu balanced circuit, micro- Processor, driving chip, OLED, intensity of illumination sensor, vibrating sensor and intervalometer, its In:

The power supply circuits that the input of described mu balanced circuit is externally connected, supply for OLED drive circuit Electricity；

Described microprocessor is sequentially connected with driving chip, OLED, drives OLED by driving chip Device is luminous；

Described intensity of illumination sensor is connected with described microprocessor, for induced environment intensity of illumination and feed back To microprocessor, microprocessor controls driving chip to OLED according to intensity of illumination and/or its change Drive；

Described intervalometer is connected with described microprocessor, and microprocessor timing based on intervalometer controls OLED Device was automatically switched off after the time lighting setting；

Described vibrating sensor is connected with described microprocessor, for induction vibration signal, microprocessor based on The vibration signal that vibrating sensor transmits controls to light OLED；

Described microprocessor uses PIC16F690 single-chip microcomputer, and described mu balanced circuit uses ASM1117 voltage stabilizing core Sheet, described intensity of illumination sensor uses TSL2561 illumination sensing chip, and described driving chip uses NCL30160 driving chip.

Brightness the most according to claim 1 adjustable OLED drive circuit, described vibrating sensing Device is Piezoelectric film Vibrating Sensors.

Brightness the most according to claim 1 adjustable OLED drive circuit, described piezoelectric membrane Vibrating sensor uses the Piezoelectric film Vibrating Sensors that model is LDT1-028K of MEAS company.