CN212322588U

CN212322588U - Display device for preventing display interface brightness from being attenuated and infrared thermometer

Info

Publication number: CN212322588U
Application number: CN202021019588.2U
Authority: CN
Inventors: 朱长铭
Original assignee: Shenzhen Urion Technology Co ltd
Current assignee: Shenzhen Urion Technology Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-01-08
Anticipated expiration: 2030-06-05

Abstract

The utility model provides a display device and an infrared thermometer for preventing the brightness attenuation of a display interface, which comprises a LED lamp, a sticker, a bracket with a through hole and a PCB; the backlight surface of the LED lamp is pasted on the PCB, the bracket is connected with the PCB, the LED lamp is positioned in the through hole, and the sticker is arranged on the bracket and covers the through hole; the boost circuit is arranged on the PCB, so that the brightness of the display interface can be kept stable, and the display can still be clearly observed under the condition of less electric quantity or darkness; in addition, the sticker is arranged on the LED lamp, so that the display interface can achieve white display, and the brightness cannot be attenuated; by setting the thickness of the support glue, each display area can be prevented from transmitting light mutually; the dark brown acrylic display panel is selected, so that weak light rays penetrating from the edges of some stickers can be shielded; the stability of display interface luminance has been kept, and the information of being convenient for is looked over, and is high-efficient convenient.

Description

Display device for preventing display interface brightness from being attenuated and infrared thermometer

Technical Field

The utility model relates to an infrared radiation thermometer technical field, concretely relates to prevent display device and infrared radiation thermometer that shows interface luminance decay.

Background

Most substances in nature (higher than absolute zero-273.15 ℃), which can continuously emit infrared energy to the outside; the temperature of the surface of a substance can be read by measuring the energy, which is the working principle of an infrared thermometer; with the progress of science and technology and the development of society, high-precision temperature measurement can be realized at present, and temperature measuring instruments with display devices are more and more popular; in the use process of most thermometers, the brightness of a display interface becomes dark along with the reduction of electric quantity, and when the display interface is viewed after the temperature is measured, information in the display interface is not clearly seen, and the angle needs to be adjusted or light needs to be carefully viewed; when the thermometer is used for measuring a large amount of body temperature at one time, inconvenience is brought to working personnel and tested personnel.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists in the above-mentioned technique, the utility model provides a prevent display device and infrared radiation thermometer of display interface luminance decay aims at solving the display interface among the prior art and can't continuously maintain the technical problem of luminance because of its self characteristic.

To achieve the above object, the present invention provides a display device for preventing the brightness of the display interface from being attenuated,

comprises an LED lamp, a sticker, a bracket with a through hole and a PCB;

the backlight surface of the LED lamp is attached to the PCB, the bracket is connected with the PCB, and the LED lamp is positioned in the through hole; the sticker is arranged on the bracket and covers the through hole; the LED lamp is electrically connected with the PCB voltage boosting circuit, and the voltage boosting circuit controls the brightness of the LED lamp.

Preferably, the LED lamp is a blue light emitting lamp, fluorescent oil is applied to one side of the sticker, and light of the LED lamp is mixed into white light after passing through the sticker.

Preferably, the LED lamp comprises a plurality of LED lamp beads, and the plurality of LED lamp beads are electrically connected with the booster circuit; the PCB is provided with a plurality of through holes corresponding to the LED lamp beads, the through holes are adjacent to each other, a support adhesive is arranged between the through holes, and the thickness of the support adhesive is 0.8 mm.

Preferably, the booster circuit comprises a processing module and a driving module, the output end of the processing module is connected with the input end of the driving module, the output end of the driving module is electrically connected with the LED lamp, and the input end of the processing module is connected with an external power supply.

Preferably, the output end of the processing module outputs 3.3V voltage.

Preferably, the driving module comprises a driving IC of the LED lamp, the output end of the processing module is connected with the input end of the driving IC of the LED lamp, the output end of the processing module is connected with the LED lamp, and the driving IC of the LED lamp adopts TM 1650.

The utility model also provides an infrared thermometer, including temperature sensor and as above display device, display device is used for showing the outside temperature value that temperature sensor acquireed.

Preferably, the temperature-sensing display device further comprises a display panel, a battery bin and a shell, the display device is arranged in the shell, the temperature sensor is fixed to the top of the shell, the display panel is arranged at the front end of the shell, the battery bin is arranged at the tail of the shell, and the display panel is fixedly connected with the shell.

Preferably, the display panel is made of brown acrylic, the display panel covers the sticker, and the display panel covers the edge of the sticker.

The utility model has the advantages that: compared with the prior art, the utility model discloses a display device and infrared radiation thermometer are through being equipped with boost circuit on the PCB board, thereby for LED drive IC provides stable voltage, make the luminance of this display interface can remain stable, the observation that still can be clear under the less or dark condition of electric quantity shows, furthermore, through set up the sticker of brushing fluorescent oil on blue LED lamp, thereby the phenomenon of decay can not appear in the white display luminance that can make the display interface reach, through setting up support gluey thickness, can prevent every display area printing opacity each other, display panel through chooseing for use the taka yakeli material, can shelter from light and hole site that some weak sticker edges were revealed, the stability of display interface luminance has been kept, convenient to information is looked over, high efficiency is convenient, people's life has been facilitated greatly.

Drawings

FIG. 1 is an overall view of the infrared thermometer of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

fig. 3 is an overall block diagram of the boost circuit according to an embodiment of the present invention;

FIG. 4 is a partial circuit diagram of the boost circuit according to an embodiment of the present invention;

fig. 5 is a diagram of a driving IC of an LED lamp according to an embodiment of the present invention.

The main element symbols are as follows:

1. a display panel; 2. a display device; 21. pasting a paper; 22. a support; 221. bracket glue; 23. a PCB; a plate; 24.

an LED lamp; 5. a temperature sensor; 6. screws; 7. a housing; 9. and (6) hole location.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

Thermometers are gaining more and more attention in our lives. The prior thermodetector is mostly supplied to people with fever in hospitals or clinics, and the problem that the display interface brightness of the thermodetector becomes dark along with electric quantity is rarely noticed by people due to the small use range of the conventional thermodetector. In some special periods inconvenient for off-line communication, whether people go home or enter a company, visit a supermarket, sit in a subway or play, people need to measure the body temperature in advance to ensure normal work and life. Therefore, before entering some public places, a worker can use the temperature measuring instrument to measure the body temperature of people, and if the use frequency of the measuring instrument is too high, the electric quantity is consumed, so that the information brightness of the display interface becomes dark, and the inconvenience influence is caused to the worker and the person to be measured.

Based on this, the present inventors have proposed a display device 2 for preventing the brightness of the display interface from being attenuated, please refer to fig. 2, which includes an LED lamp 24, a sticker 21, a bracket 22 with a through hole, and a PCB 23;

the backlight surface of the LED lamp 24 is attached to the PCB 23, the bracket 22 is connected with the PCB 23, and the LED lamp 24 is positioned in the through hole; the paster 21 is arranged on the bracket 22 and covers the through hole, wherein, the LED lamp 24 is electrically connected with the booster circuit of the PCB 23, the booster circuit controls the brightness of the LED lamp 24, by arranging the boost circuit on the PCB 23, a stable voltage is provided to the LED lamp 24, so that the brightness of the display interface can be kept stable, the display can still be clearly observed under the condition of low power or darkness, and in addition, by arranging the paster 21 on the LED lamp 24, therefore, the white display brightness achieved by the display interface can not be attenuated, and by setting the glue thickness of the bracket 22, can prevent each display area from transmitting light, and by selecting the display panel 1 made of tawny acrylic material, the weak light and the hole positions 9 which are transmitted out from the edges of the stickers 21 can be shielded, the stability of the brightness of the display interface is kept, the information can be conveniently checked, and the application range of the display device 2 is enlarged.

In this embodiment, the LED lamp 24 is a blue light emitting lamp, fluorescent oil is brushed on one side of the sticker 21, the color of the fluorescent oil is formed by mixing red and green, human eyes generally determine uniform strong light as white, determine uniform areas which are obviously darker than the surrounding environment as black, pure white light can be decomposed into red, green and blue monochromatic lights, a combination mode of forming a new color by superimposing the monochromatic lights is called a color adding system, when the three colors are added, the white light is turned back to be white light, by using the above principle, the blue LED lamp 24 and the red and green lights can be superimposed to form white display, so that the light of the LED lamp 24 can be ensured to form white light after passing through the sticker 21, and the white brightness mixed by the superimposing mode can not be attenuated, and high-brightness display can be achieved.

In this embodiment, the LED lamp 24 includes a plurality of LED lamp beads, and the plurality of lamp beads are electrically connected to the voltage boost circuit; the PCB 23 is provided with a plurality of through holes corresponding to the LED lamp beads, a support adhesive 221 is arranged between the adjacent through holes, preferably, the thickness of the support adhesive 221 is specially set to be 0.8mm, so that each display area is prevented from transmitting light, the visual effect is guaranteed, the support adhesive 221 with other thicknesses can be set, and the limitation is not limited herein.

In this embodiment, please refer to fig. 3, the boost circuit includes a processing module 11 and a driving module 12, an output end of the processing module 11 is connected to an input end of the driving module 12, an output end of the driving module 12 is electrically connected to the LED lamp 24, an input end of the processing module 11 is connected to the external power supply 10, and the processing module 11 and the driving module 12 are arranged to keep the circuit stable.

IN this embodiment, please refer to fig. 4 and 5, an output end of the processing module 11 outputs a 3.3V voltage, the processing module 11 includes an inductor L1, an IC processor U6, and a diode IN5818, an output end of the inductor L1 is connected to an input end of the IC processor U6, the diode IN5818 and the IC processor U6 are connected IN parallel between an output end of the inductor L1 and an external power supply circuit VCC, the power supply circuit VCC and an input end of the inductor L1 form a closed loop, and the processing module 11 supplies power to the driving module 12 alone by setting the 3.3V output voltage, so that the problem of unstable voltage of the driving module 12 when the electric quantity drops is prevented, and the problem of display brightness reduction caused by electric quantity loss is effectively solved.

In this embodiment, the driving module 12 includes the driving IC U2 of the LED lamp 24, the pin 10 of the input terminal of the driving IC U2 of the LED lamp 24 is connected to the output terminal of the processing module 11, the output terminal is connected to the LED lamp 24, the driving IC U2 of the LED lamp 24 adopts TM1650 to improve the stability of the LED lamp 24, and the driving IC of the LED lamp 24 has strong anti-interference capability, and is suitable for an application occasion of 24-hour long-term continuous operation.

The invention further provides an infrared thermometer, which comprises a temperature sensor 5 and the display device 2, wherein the display device 2 is used for displaying the external temperature value acquired by the temperature sensor 5, so that the brightness of the temperature value acquired by the display device 2 can still be kept unchanged under the condition that the electric quantity of the infrared thermometer is low, the reading information is efficient and convenient, and the application range of the display device 2 is expanded.

In this embodiment, still include display panel 1, battery compartment and casing 7, display device 2 sets up inside casing 7, and temperature sensor 5 fixes at casing 7 top, and display panel 1 arranges casing 7 front end portion in, and the battery compartment is installed in casing 7 afterbody, and display panel 1 and casing 7 fixed connection are through installing display device 2 inside casing 7 to this infrared thermometer display panel 1's clear effect has been strengthened.

The material of display panel 1 is tawny ya keli, display panel 1 with casing 7 uses screw 6 to connect, screw 6 can form hole site 9 after fixed, display panel 1 cover in on the sticker 21, display panel 1 shelters from the sticker 21 edge reaches hole site 9.

In this embodiment, display panel 1 and casing 7 use screw 6 to be connected, and screw 6 can form hole site 9 after fixed, and display panel 1's material is tawny ya keli, and display panel 1 covers on display device 2's sticker 21, through choosing this kind of high rigidity of tawny yakeli for use, display panel 1 of high strength and high rigidity material, thereby makes display panel 1 shelters from sticker 21 edge reaches hole site 9, like this, can effectually reach the possible weak light that sees through in sticker 21 edge the hole site 9 shelters from by a wide margin, makes the display effect better.

In this embodiment, the boost circuit is disposed on the PCB 23 to provide stable voltage for the LED driver IC, so that the brightness of the display interface can be kept stable, and the display can be clearly observed and displayed under the condition of less power or darkness, in addition, the fluorescent oil sticker 21 formed by mixing red and green is disposed on the blue LED lamp 24, so that the white display brightness of the display interface can not be attenuated, the thickness of the bracket glue 221 of the LED lamp 24 is made to be 0.8mm, so that each display area can be prevented from transmitting light, the display panel 1 made of takraw acrylic material is selected to substantially shield weak light and holes 9 from the edges of some stickers 21, so that the brightness of the display interface is kept stable, and the information on the display interface can still be clearly seen under the condition of low power of the thermometer, high efficiency, convenience and great convenience for people's life.

The utility model has the advantages that:

1) the brightness of the display interface can be kept stable in the electricity use process;

2) the white brightness of the display area does not have the attenuation phenomenon;

3) the phenomenon of mutual light transmission does not occur in each display area, and the display effect is better.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A display device for preventing the brightness attenuation of a display interface is characterized by comprising an LED lamp, a sticker, a bracket with a through hole and a PCB;

2. The display device of claim 1, wherein the LED lamp is a blue light-emitting lamp, one side of the sticker is painted with fluorescent oil, and lights of the LED lamp pass through the sticker and are mixed into white lights.

3. The display device for preventing brightness attenuation of the display interface of claim 1, wherein the LED lamp comprises a plurality of LED lamp beads, and the plurality of LED lamp beads are electrically connected to the voltage boost circuit; a plurality of through holes corresponding to the LED lamp beads are formed in the PCB; and a support adhesive is arranged between the adjacent through holes, and the thickness of the support adhesive is 0.8 mm.

4. The display device according to claim 1, wherein the boost circuit comprises a processing module and a driving module, an input terminal of the processing module is connected to an external power supply, an output terminal of the processing module is connected to an input terminal of the driving module, and an output terminal of the driving module is electrically connected to the LED lamp.

5. The apparatus according to claim 4, wherein the output of the processing module outputs 3.3V voltage.

6. The display device according to claim 4, wherein the driving module comprises a driving IC of the LED lamp, the output end of the processing module is connected to the input end of the driving IC of the LED lamp, the output end of the processing module is connected to the LED lamp, and the driving IC of the LED lamp adopts TM 1650.

7. An infrared thermometer, comprising a temperature sensor and the display device of any one of claims 1 to 6, wherein the display device is configured to display an external temperature value obtained by the temperature sensor.

8. The infrared thermometer of claim 7, further comprising a display panel, a battery compartment and a housing, wherein the display device is disposed inside the housing, the temperature sensor is fixed to the top of the housing, the display panel is disposed at the front end of the housing, the battery compartment is mounted at the rear end of the housing, and the display panel is fixedly connected to the housing.

9. The infrared thermometer of claim 8, wherein said display panel is made of takraw acrylic, said display panel covers said sticker edge.