Search

CN-224210908-U - OLED (organic light emitting diode) working circuit of afterloading instrument

CN224210908UCN 224210908 UCN224210908 UCN 224210908UCN-224210908-U

Abstract

The utility model discloses a post-loading instrument OLED working circuit which comprises a processor, wherein a processor display data output end is connected with an OLED screen display data input end, a processor OLED power supply setting output end is connected with an OLED screen power supply setting input end, a processor OLED reset output end is connected with an OLED screen reset input end, an OLED screen synchronizing signal output end is connected with a processor OLED synchronizing signal input end, a first processor display data positive electrode output end is connected with a first OLED screen display data positive electrode input end, a first processor display data negative electrode output end is connected with a first OLED screen display data negative electrode input end, a second processor display data positive electrode output end is connected with an OLED screen display data second channel negative electrode input end, a processor display data clock channel positive electrode output end is connected with an OLED screen display data clock channel input end, and a processor display data clock channel negative electrode output end is connected with an OLED screen display data clock channel negative electrode input end. The display can be performed through the OLED screen, and the OLED screen is stably driven.

Inventors

  • WANG YINGLI
  • ZHAO ZHONGRUI
  • LI YANAN

Assignees

  • 重庆德科电子仪表有限公司
  • 上海仪电电子(集团)有限公司

Dates

Publication Date
20260508
Application Date
20250721

Claims (8)

  1. 1. The OLED working circuit of the rear instrument is characterized by comprising a processor (U1), wherein a display data output end of the processor (U1) is connected with an OLED screen display data input end, an OLED power supply setting output end of the processor (U1) is connected with an OLED screen power supply setting input end, an OLED reset output end of the processor (U1) is connected with an OLED screen reset input end, an OLED screen synchronizing signal output end is connected with an OLED synchronizing signal input end of the processor (U1), a first channel positive electrode output end of display data of the processor (U1) is connected with a first channel positive electrode input end of display data of the OLED screen, a first channel negative electrode output end of display data of the processor (U1) is connected with a first channel negative electrode input end of display data of the OLED screen, a second channel positive electrode output end of display data of the processor (U1) is connected with a second channel negative electrode input end of display data of the OLED screen, a positive electrode output end of display data clock channel of the processor (U1) is connected with a positive electrode input end of the OLED screen display data of the OLED screen, and a clock output end of the processor (U1) is connected with a clock input end of the display data of the OLED screen.
  2. 2. The post-load instrument OLED working circuit according to claim 1, wherein the OLED screen is connected through a wiring board FPC1, the OLED screen is further provided with an OLED power supply module (U6), the end LX3 of the OLED power supply module (U6) is connected with one end of an inductor L5, the other end of the inductor L5 is connected with the other end of an inductor L2, the end LX1 of the OLED power supply module (U6) is connected with one end of an inductor L4, the other end of the inductor L4 is connected with the other end of the inductor L2, the end LX2 of the OLED power supply module (U6) is connected with one end of an inductor L3, and the other end of the inductor L3 is connected with power ground; the OLED power supply module (U6) PVIN end is connected with one end of a capacitor C58, one end of a capacitor C60 and one end of an inductor L2, the end AVIN of the OLED power supply module (U6) is connected with one end of a capacitor C59, one end of a capacitor C61 and one end of an inductor L2, the grounding end of the OLED power supply module (U6), the other end of the capacitor C59, the other end of the capacitor C61, the other end of the capacitor C58 and the other end of the capacitor C60 are all connected with power supply ground, the end VO3 of the OLED power supply module (U6) is connected with one end of the capacitor C55, one end of the capacitor C70 and the end of a wiring bank FPC1AVDD end, the other end of the capacitor C55, the other end of the capacitor C70 and the end PGND2 of the OLED power supply module (U6) are all connected with power supply ground, the end of the end VO1 of the OLED power supply module (U6) is connected with one end of a capacitor C56, one end of a capacitor C98, one end of a capacitor C68 and the wiring bank 1 ELND end of the capacitor C56, the other end of the capacitor C98, the other end of the capacitor C68 and the end of the wiring bank FPC 6, the other end of the capacitor C68 are all connected with power supply ground, the end of the capacitor C6, and the end of the capacitor C57, the end of the capacitor C57 is connected with the capacitor C57, the capacitor C end of the wiring bank, and the end of the capacitor C69 is connected with the capacitor C end of the capacitor C1 The other end of the capacitor C100 and the other end of the capacitor C69 are both connected with power ground, the end of the wiring board FPC1IDVCC is connected with the voltage output end of the low-dropout linear voltage regulator (U5), and the end of the wiring board FPC1VCI is connected with the drain electrode of the triode Q4.
  3. 3. The afterloading meter OLED operating circuit of claim 1, wherein: the power supply module comprises a battery output power supply end, a capacitor C45 end, a capacitor C46 end, a capacitor C47 end and a capacitor C48 end, wherein the other end of the capacitor C45, the other end of the capacitor C46, the other end of the capacitor C47 and the other end of the capacitor C48 are all connected with power ground, the enabling end of the first DC-DC converter (U3) is connected with the first end of a switch diode D2 and one end of a resistor R39, the second end of the switch diode D2 is connected with a USB power supply, the third end of the switch diode D2 is connected with the enabling end of a processor (U1) 3.3V, the power supply voltage of the first DC-DC converter (U3) is connected with one end of a capacitor C44, the other end of the resistor R39 and the first DC-DC converter (U3) are grounded, the first DC-DC converter (U3) is connected with one end of a resistor R34, the other end of the resistor R34 is connected with one end of a capacitor C38, the other end of the capacitor C38 is connected with one end of a capacitor C3.3V, and the other end of the capacitor C36, the other end of the capacitor C3, the capacitor R42 and the other end of the capacitor C3 is connected with the capacitor C42, the other end of the capacitor C42, the capacitor C42 and the other end of the capacitor C36 is connected with the capacitor C42, the other end of the capacitor C3 and the capacitor C42, and the capacitor C42.
  4. 4. The post-load instrument OLED operating circuit according to claim 3, wherein the power supply module further comprises a second DC-DC converter (U4) voltage input end connected with the other end of the inductor L2, one end of the capacitor C31, one end of the capacitor C32 and one end of the resistor R28, the other end of the capacitor C31, the other end of the capacitor C32, the ground end of the second DC-DC converter (U4) and one end of the capacitor C34 are all connected with the power supply ground, the other end of the resistor R28 is connected with the enable end of the second DC-DC converter (U4), the PG end of the second DC-DC converter (U4) is an SOC power supply enable end, one end of the resistor R29 is connected with the SW end of the second DC-DC converter (U4) and one end of the inductor L1, the other end of the inductor L1 outputs 1.3V voltage, and the other end of the resistor R29, one end of the resistor R31, one end of the capacitor C33, one end of the capacitor C34 and one end of the capacitor C35 are all connected with the other end of the resistor R30 and the other end of the resistor R30 are all connected with the ground; The second DC-DC converter (U4) PG end is connected with the SOC power supply enabling circuit enabling signal input end, the SOC power supply enabling circuit comprises a resistor R44, one end of the resistor R44 is connected with the second DC-DC converter (U4) PG end, the other end of the resistor R44 is connected with one end of a capacitor C51 and a base electrode of a triode Q2, the other end of the capacitor C51 and an emitting electrode of the triode Q2 are both connected with power ground, a collector electrode of the triode Q2 is connected with one end of the resistor R40, the other end of the resistor R40 is connected with a grid electrode of the field effect transistor Q1, one end of the resistor R41 and one end of the capacitor C49, the other end of the resistor C41 is connected with the other end of the capacitor C49, the drain electrode of the triode Q1 is a SOC3.3V power supply end for supplying power to the processor (U1), one end of the resistor R42 and one end of the capacitor C50 are connected, and the other end of the resistor R42 and the other end of the capacitor C50 are both connected with power ground.
  5. 5. The post-load instrument OLED operating circuit according to claim 1, further comprising a battery sampling circuit, wherein one end of a resistor R51 is connected with an enabling end of a processor (U1) battery sampling signal, the other end of the resistor R51 is connected with one end of a resistor R53, one end of a capacitor C63 and a base electrode of a triode Q5, the other end of the resistor R53, the other end of the capacitor C63 and an emitter electrode of the triode Q5 are all connected with power ground, a collector electrode of the triode Q5 is connected with one end of a resistor R54, the other end of the resistor R54 is connected with one end of a triode Q6, one end of the resistor R52 and one end of a capacitor C62, an emitter electrode of the triode Q6 is connected with one end of a resistor R56 and one end of a capacitor C67, the other end of the resistor R56 is connected with one end of a resistor R57, one end of a capacitor C91 and the battery sampling signal input end of the processor (U1), and the other end of the resistor R57 and the other end of the capacitor C91 are all connected with power ground.
  6. 6. The post-load instrument OLED operating circuit of claim 1, further comprising an OLED power supply enabling circuit, wherein one end of a resistor R45 is connected with a power supply enabling end of a processor (U1) OLED3.3V, the other end of the resistor R45 is connected with one end of a resistor R47, one end of a capacitor C53 and a base electrode of a triode Q3, the other end of the resistor R47, the other end of the capacitor C51 and an emitter electrode of the triode Q3 are all connected with power supply ground, a collector electrode of the triode Q3 is connected with one end of a resistor R48, the other end of the resistor R48 is connected with a grid electrode of a field effect transistor Q4, one end of the resistor R46 and one end of the capacitor C52, a source electrode of the triode Q4 is connected with the other end of the resistor R46, the other end of the capacitor C52 and the other end of the inductor L2, a drain electrode of the triode Q4 is a OLED3.3V power supply end for supplying power to an OLED screen, one end of the resistor R49 and one end of the capacitor C54 are all connected with power supply ground.
  7. 7. The post-load instrument OLED operating circuit according to claim 1, further comprising a low dropout linear regulator (U5), wherein a voltage input end of the low dropout linear regulator (U5) is connected with the other end of the inductor L2 and one end of the capacitor C36, an enabling end of the low dropout linear regulator (U5) is connected with a power supply enabling end of the processor (U1) OLED1.8V and one end of the resistor R33, a ground end of the low dropout linear regulator (U5), the other end of the resistor R33 and the other end of the capacitor C36 are all connected with a power supply ground, and a voltage output end of the low dropout linear regulator (U5) outputs 1.8V voltage for supplying power to an OLED screen and is connected with one end of the capacitor C37, and the other end of the capacitor C37 is connected with the power supply ground.
  8. 8. The post-load meter OLED operating circuit according to claim 1, wherein a 3.3V positive power supply voltage terminal of a processor power supply unit (U1A) is connected with a triode Q1 drain, a capacitor C20 terminal, a capacitor C19 terminal, a capacitor C18 terminal, a capacitor C17 terminal and a capacitor C16 terminal, the capacitor C20 terminal, the capacitor C19 terminal, the capacitor C18 terminal, the capacitor C17 terminal and the capacitor C16 terminal are all connected with power supply ground, a 3.3V analog circuit power supply terminal of the processor power supply unit (U1A) is connected with a resistor R7 terminal, a capacitor C14 terminal and a capacitor C15 terminal, the other end of the resistor R7 is connected with a triode Q1 drain, the 3.3V PLL power supply terminal is connected with a resistor R6 terminal and a capacitor C13 terminal, the other end of the resistor R6 is connected with a triode Q1 drain, the other end of the capacitor C13 terminal, the capacitor C14 terminal and the capacitor C15 terminal are all connected with power supply ground, the other end of the processor power supply unit (U1A) is connected with a capacitor L1 terminal, a capacitor C14 terminal and a capacitor C15 terminal, the other end of the capacitor C9 terminal is connected with a capacitor C8 terminal, and the other end of the capacitor C8 terminal is connected with one end of the capacitor C8 terminal; the power supply circuit comprises a processor power supply unit (U1A) SDVREF, a resistor R2, a resistor R1 and a capacitor C5, wherein the other end of the resistor R1 and the other end of the capacitor C5 are connected with power ground, the other end of the resistor R2 is connected with one end of a resistor R27, the other end of the resistor R27 is connected with a processor power supply unit (U1A) 1.8VDDR, the processor power supply unit (U1A) AVDD_RTC is connected with one end of a resistor R3 and one end of a capacitor C6, the other end of the resistor R3 is connected with a drain electrode of a triode Q1, the other end of the processor power supply unit (U1A) AVSS_RTC is connected with one end of a resistor R4, and the other end of the resistor R4 and the other end of the capacitor C6 are connected with power ground.

Description

OLED (organic light emitting diode) working circuit of afterloading instrument Technical Field The utility model relates to the technical field of automobile instrument equipment, in particular to an OLED working circuit of a rear-mounted instrument. Background After the automobile leaves the factory, many users can add or reconfigure the instrument panel system by themselves in order to improve the functionality, the aesthetic degree or the technological sense of the automobile. Most of common automobile instruments adopt LCD or LED for display, but the traditional LCD or LED instruments have the following defects that 1, backlight is easy to leak light, the use look is reduced, the backlight is always bright, the required power consumption is larger, 2, liquid crystal molecules are turned over to delay, the response speed is slower, 3, the protocol compatibility is poor, LVDS video input is required, a CAN/LIN bus cannot be directly connected, and an additional conversion box is required. Disclosure of utility model The utility model aims to solve the technical problems in the prior art, and particularly creatively provides an OLED working circuit of a rear-mounted instrument, which can display through an OLED screen and stably drive the OLED screen. In order to achieve the above purpose, the utility model provides an OLED working circuit of a post-load instrument, which comprises a processor, wherein the output end of display data of the processor is connected with the input end of display data of an OLED screen, the setting output end of OLED power supply of the processor is connected with the setting input end of OLED screen, the resetting output end of OLED power supply of the processor is connected with the resetting input end of OLED screen, the output end of OLED screen synchronizing signal is connected with the input end of OLED synchronizing signal of the processor, the positive output end of display data of the processor is connected with the positive input end of display data of the first channel of OLED screen, the negative output end of display data of the processor is connected with the positive input end of display data of the second channel of OLED screen, the positive output end of display data of the processor is connected with the positive input end of display data of the OLED screen clock channel, and the negative output end of display data of the processor is connected with the negative input end of the display data of the clock channel of the OLED screen. According to the scheme, the OLED screen is connected through a wiring board FPC1, the OLED screen is further provided with an OLED power module, the end 3 of the OLED power module LX is connected with one end of an inductor L5, the other end of the inductor L5 is connected with the other end of an inductor L2, the end 1 of the OLED power module LX is connected with one end of an inductor L4, the other end of the inductor L4 is connected with the other end of the inductor L2, the end 2 of the OLED power module LX is connected with one end of the inductor L3, and the other end of the inductor L3 is connected with power ground; the OLED power supply module PVIN end is connected with one end of a capacitor C58, one end of a capacitor C60 and one end of an inductor L2, the end of the OLED power supply module AVIN is connected with one end of a capacitor C59, one end of a capacitor C61 and one end of an inductor L2, the grounding end of the OLED power supply module, the other end of the capacitor C59, the other end of the capacitor C61, the other end of the capacitor C58 and the other end of the capacitor C60 are all connected with power supply ground, the end of the OLED power supply module VO3 is connected with one end of the capacitor C55, one end of the capacitor C70 and one end of a wiring drain FPC1AVDD end, the other end of the capacitor C55, the other end of the capacitor C70 and one end of the OLED power supply module PGND2 are all connected with power supply ground, the end of the capacitor C56, one end of the capacitor C98, the other end of the capacitor C68 and one end of the OLED power supply module PGND1 are all connected with power supply ground, the other end of the capacitor C57, one end of the capacitor C100, one end of the capacitor C69 and one end of the wiring drain FPC1, the other end of the capacitor C69 and one end of the wiring drain FPC1 are all connected with one end of the wiring drain FPC1, and the voltage of the wiring drain terminal of the capacitor C69 is connected with one end of the drain terminal FPC1, and the voltage regulator is connected with one end of the drain terminal of the capacitor. In the scheme, the power supply module further comprises a power supply module, wherein the power supply module comprises a first DC-DC converter voltage input end, a battery output power supply end, a capacitor C45 end, a capacitor C46 end, a capacitor C47 end and a capacitor C48 end, the other end of the capacito