CN213892329U

CN213892329U - Instrument for solving silk-screen segment code screen silk-screen color block

Info

Publication number: CN213892329U
Application number: CN202021136532.5U
Authority: CN
Inventors: 魏萍; 刘晓慧; 郑羽; 王庆
Original assignee: Nanjing Xiehe Electronic Technology Co ltd; Jiangsu Xiehe Electronic Co ltd
Current assignee: Nanjing Xiehe Electronic Technology Co ltd; Jiangsu Xiehe Electronic Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-08-06
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a solve instrument of silk screen printing section yard screen silk screen printing color lump relates to car section yard screen technical field. This solve instrument of silk screen printing section sign indicating number screen printing color lump, including the mesochite, one side external fixed surface of mesochite has the LCD screen, the opposite side external fixed surface of mesochite has the circuit board, the inside equidistance of mesochite is provided with a plurality of light check, the LED pilot lamp is all installed to the inside of mesochite and the below that is located every light check. This solve instrument of silk screen section sign indicating number screen silk screen color lump divide into each light check in the inside of mesochite, at every light check below evenly distributed LED light, when certain LED pilot lamp is bright, only light corresponding backlight, other positions are black, have increased the contrast so promptly, have solved the color lump problem at main visual angle and non-main visual angle again, in the use, the driver of being convenient for observes the use.

Description

Instrument for solving silk-screen segment code screen silk-screen color block

Technical Field

The utility model relates to an automobile section sign indicating number screen technical field specifically is an instrument of solution silk screen printing section sign indicating number screen printing color lump.

Background

With the development of automobile technology, the all-liquid-crystal instrument is popularized, and most automobile factories use two schemes, one scheme is an all-TFT screen, the requirements on a system and the stability of the system are high, and the technical cost of the system is about 2-3 times of that of the traditional instrument; the other is the combination of a TFT screen and a segment code screen, and the technology has higher requirements on boundary treatment and light transmittance design of an overlapped part. At present, partial new energy manufacturers also require to use a full liquid crystal instrument for low vehicle distribution type, and due to the fact that the manufacturing cost of the VA-LCD is low, a system scheme of a segment code screen and screen printing is introduced, the segment code screen can increase colors, the segment code screen is called as screen printing in the industry, the screen printing enables the display of the liquid crystal screen to be colored, the principle is that screen printing of colors is carried out on a polaroid of the liquid crystal screen, the ink after the screen printing is attached to the polaroid, white light penetrates through green ink and then irradiates colored light, and the feeling of people is that the font is colored; when the color of the LCD segment code screen needs to be increased, the outer silk screen printing does not need to be opened again, and only the cost of one silk screen printing film needs to be paid.

However, in the prior art, for the car segment code screen, there are two kinds of backlights on the market, one kind is the bottom backlight, a fluorescent tube is evenly distributed on the circuit board, the screen is backlit evenly and displayed after passing through the light guide plate, the other kind is the side backlight, use a backlight light guide plate alone, because the information that the whole screen displays is not more than the speed of a vehicle, electric quantity, etc., still include the pilot lamp that original traditional table tablet shows, the silk screen printing colour includes green, red, blue, yellow four kinds, including original LCD's white display, total 5 kinds of display colors, when using current two kinds of backlight schemes, because LCD only has a main visual angle, the colour piece that the colour differs just can be seen to other visual angles, influence visual effect, especially following scene is obvious: when the vehicle door is opened at night, the position lamp is not opened, the backlight brightness is in a daytime mode, the backlight brightness is high, the environment is dark, only door opening information is displayed at present, and the color block phenomenon of the rest part is particularly obvious.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve instrument of silk screen printing section sign indicating number screen printing color lump divide into each light check in the inside of mesochite, at every light check below evenly distributed LED light, when certain LED pilot lamp is bright, only light the backlight illumination lamp that corresponds, other positions are black, have increased the contrast so promptly, have solved the color lump problem at main visual angle and non-main visual angle again, in using, the driver of being convenient for observes the use.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a solve instrument of silk screen printing section sign indicating number silk screen printing color lump, includes the mesochite, one side external fixed surface of mesochite has the LCD screen, the opposite side external fixed surface of mesochite has the circuit board, the inside equidistance of mesochite is provided with a plurality of light check, the LED pilot lamp is all installed to the inside of mesochite and the below that is located every light check, the circuit board is including LDO power module, CAN communication module, MCU module, aversion deposit module, LED lamp drive module, LCD section sign indicating number screen drive module and LCD display module in a poor light.

In order to transmit the signal, as the utility model relates to a solve preferred of instrument of silk screen printing section sign indicating number screen printing colour piece, LDO power module's output passes through the input electric connection of wire with the MCU module, CAN communication module's output passes through the input electric connection of wire with the MCU module.

In order to transmit the signal, as the utility model relates to a solve the preferred instrument of silk screen printing section yard screen printing colour block, the output of MCU module passes through the wire and shifts the input electric connection who deposits the module.

In order to transmit the signal, as the utility model relates to a solve the preferred instrument of silk screen printing section sign indicating number screen printing colour block, the output of aversion deposit module passes through wire and LED lamp drive module's in a poor light input electric connection.

In order to transmit the signal, as the utility model relates to a solve preferred of instrument of silk screen printing section yard screen printing colour block, LCD display module's output passes through wire and LCD section yard screen drive module's input electric connection.

In order to transmit the signal, as the utility model relates to a solve preferred of instrument of silk screen printing section code screen silk screen printing colour block, LCD section code screen drive module's output passes through the input electric connection of wire and MCU module.

The utility model provides a solve instrument of silk screen printing section sign indicating number screen printing color lump. The method has the following beneficial effects:

(1) this solve instrument of silk screen section sign indicating number screen silk screen printing color lump divide into each light check in the inside of mesochite, at every light check below evenly distributed LED light, when certain LED pilot lamp is bright, only light the backlight that corresponds, other positions are black, have increased the contrast so promptly, have solved the color lump problem at main visual angle and non-main visual angle again, in the use, the driver of being convenient for observes the use.

(2) This solve instrument of silk screen printing section sign indicating number screen printing color lump because every LED pilot lamp can mark alone, so the degree of consistency that is shaded can reach more than 90%, in the use, can effectual improvement show the effect.

(3) The instrument for solving the silk-screen segment code screen silk-screen color lump can adopt a hardware platform of a traditional instrument, and a driving circuit of a bottom backlight is added, so that the cost is low, the system is stable, and the instrument has great competitiveness in low-end vehicle types of new energy vehicles.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a block diagram of the system of the present invention;

fig. 4 is a circuit diagram of the backlight driving circuit of the present invention.

In the figure: 1. a liquid crystal screen; 2. a light grid; 3. a middle shell; 4. a circuit board; 5. the LDO power supply module; 6. a CAN communication module; 7. an MCU module; 8. a shift register module; 9. a backlight LED lamp driving module; 10. The LCD segment code screen driving module; 11. and an LCD display module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a solve instrument of silk screen printing section sign indicating number screen printing color lump, including mesochite 3, one side external fixed surface of mesochite 3 has LCD screen 1, the opposite side external fixed surface of mesochite 3 has circuit board 4, the inside equidistance of mesochite 3 is provided with a plurality of light check 2, LED pilot lamp is all installed to the inside of mesochite 3 and the below that is located every light check 2, circuit board 4 is including LDO power module 5, CAN communication module 6, MCU module 7, aversion is deposited module 8, LED lamp drive module 9 is shaded, LCD section sign indicating number screen drive module 10 and LCD display module 11.

In this embodiment: the positions of the liquid crystal screen 1 and the circuit board 4 can be installed and fixed through the middle shell 3, the inner part of the middle shell 3 is divided into the light lattices 2, the LED illuminating lamps are uniformly distributed below each light lattice 2, when a certain LED indicating lamp is lightened, the corresponding backlight illuminating lamp is only lightened, and other positions are black, so that the contrast is increased, the color block problems of a main visual angle and a non-main visual angle are solved, in use, the LED display screen is convenient for a driver to observe and use, and the light which is irradiated onto the glass screen after passing through the light homogenizing plate is uniform,in addition, in order to prevent light crosstalk, the middle positions of two LED indicator lamps on a screen polarizer are overlapped with the partition part of the light grid 2, black ink is smeared at other non-display positions, and simultaneously the contrast is also improved, because the circuit board 4 comprises a plurality of modules, in use, because the LED indicator lamps of backlight have 48 paths, the expansion of an IO port CAN be carried out through the shift register module 8, the proper expansion number is selected according to the driving number and the synchronization condition of an actual driving port, according to the driving example of 16 bottom backlight LED indicator lamps in the figure 4, the display period and the display state of each LED are driven through serial port communication, wherein U1 CAN be selected from S12G series, S12ZVC series and the like of NXP company, U2 and U3 are shift registers, U4, U5 and U6 are Darlington tubes, the current amplification function is realized, the on-off of the LED indicator lamps are controlled through hard wires or signals in an instrument, the backlight of one LED indicator lamp is synchronously turned on while the other LED indicator lamps and the backlight are turned off, the backlight LED lamp driving module 9 is PWM driven, the backlight brightness of each grid can be independently calibrated by software design, and the calibration range is 0-200 cd/m²In addition, due to the fact that the transmittance of different silk-screen printing (printing ink with different colors) is different, under the condition that a lot of display contents exist, the display uniformity can be guaranteed after calibration, and the display effect can be improved.

Specifically, the output end of the LDO power supply module 5 is electrically connected to the input end of the MCU module 7 through a wire, and the output end of the CAN communication module 6 is electrically connected to the input end of the MCU module 7 through a wire.

In this embodiment: make LDO power module 5 CAN transmit the signal to MCU module 7 for CAN communication module 6 CAN transmit the signal to MCU module 7.

Specifically, the output end of the MCU module 7 is electrically connected to the input end of the shift register module 8 through a wire.

In this embodiment: so that the MCU block 7 can transmit a signal to the shift register block 8.

Specifically, the output end of the shift register module 8 is electrically connected to the input end of the backlight LED lamp driving module 9 through a wire.

In this embodiment: so that the shift register module 8 can transmit a signal to the LED lamp driving module 9.

Specifically, the output end of the LCD display module 11 is electrically connected to the input end of the backlight LCD segment code screen driving module 10 through a wire.

In this embodiment: so that the LCD display module 11 can transmit signals to the LCD segment screen driving module 10.

Specifically, the output end of the LCD segment code screen driving module 10 is electrically connected to the input end of the MCU module 7 through a wire.

In this embodiment: so that the LCD segment screen driver module 10 can transmit signals to the MCU module 7.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a solve instrument of silk screen printing section sign indicating number screen printing color lump, includes mesochite (3), its characterized in that: one side external fixed surface of mesochite (3) has LCD screen (1), the opposite side external fixed surface of mesochite (3) has circuit board (4), the inside equidistance of mesochite (3) is provided with a plurality of light check (2), the LED pilot lamp is all installed to the inside of mesochite (3) and the below that is located every light check (2), circuit board (4) are including LDO power module (5), CAN communication module (6), MCU module (7), aversion register module (8), LED lamp drive module (9), LCD section code screen drive module (10) and LCD display module (11) are shaded.

2. The meter of claim 1, wherein the meter is further configured to resolve the silk-screen segment code and the silk-screen color block: the output end of the LDO power supply module (5) is electrically connected with the input end of the MCU module (7) through a wire, and the output end of the CAN communication module (6) is electrically connected with the input end of the MCU module (7) through a wire.

3. The meter of claim 1, wherein the meter is further configured to resolve the silk-screen segment code and the silk-screen color block: the output end of the MCU module (7) is electrically connected with the input end of the shift register module (8) through a lead.

4. The meter of claim 1, wherein the meter is further configured to resolve the silk-screen segment code and the silk-screen color block: the output end of the shift register module (8) is electrically connected with the input end of the backlight LED lamp driving module (9) through a lead.

5. The meter of claim 1, wherein the meter is further configured to resolve the silk-screen segment code and the silk-screen color block: the output end of the LCD display module (11) is electrically connected with the input end of the LCD segment code screen driving module (10) through a conducting wire.

6. The meter of claim 1, wherein the meter is further configured to resolve the silk-screen segment code and the silk-screen color block: the output end of the LCD segment code screen driving module (10) is electrically connected with the input end of the MCU module (7) through a lead.