CN111948847A - Functional display for vehicle and manufacturing method thereof - Google Patents

Abstract

The display comprises a display panel, a shell and a circuit board assembly, the circuit board assembly comprises a light source, the shell forms an installation cavity, the circuit board assembly is positioned in the installation cavity, the display panel is adopted as an optical display device and comprises a light-transmitting part and a light-shielding part, the light-transmitting part forms display characters, a light-shielding layer is arranged on the upper surface or the lower surface of the light-transmitting part, the light-shielding part forms the light-shielding part, the light-shielding part blocks light emitted by the light source to pass through the display panel, the light-transmitting part and a light-isolating structure act together to enable the light source not to emit light or display the light effect that the characters do not display when.

Description

Functional display for vehicle and manufacturing method thereof

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of vehicles, in particular to a functional display for a vehicle and a manufacturing method thereof.

[ background of the invention ]

The vehicle function display is mainly used for displaying corresponding functions of the air conditioning system, the vehicle function display mainly comprises a light emitting source and a display panel, a light transmission part is arranged on the display panel, the light transmission part generally comprises display characters, and light emitted by the light emitting source presents corresponding light effects on the surface of the display through the display characters, so that the real-time working state of vehicle operation is indicated. Generally, a liquid crystal screen or an in-mold injection molding method is adopted to enable the display to achieve the visual effect that characters are invisible when a luminous source does not emit light, but the cost of the liquid crystal screen and the in-mold injection molding process is higher. How to reduce the production cost while ensuring that the display character is invisible when the light emitting source does not emit light or the light does not reach the preset intensity is a technical problem faced by those skilled in the art.

[ summary of the invention ]

The invention aims to provide a functional display for a vehicle and a manufacturing method thereof, which can reduce the production cost while ensuring that a display character is invisible when a luminous source does not emit light or the light does not reach a preset intensity.

In order to achieve the purpose, the invention adopts the following technical scheme:

a vehicle functional display comprises a display panel, a shell and a circuit board assembly, wherein the shell comprises a base and a rear cover, the base is in sealing connection with the rear cover to form an installation cavity, the display panel is fixedly connected with the base, the circuit board assembly comprises a light source, the direction of the display panel, which is far away from the base, is defined to be upward, the direction of the display panel, which faces the base, is defined to be downward, the display panel comprises a light-transmitting part and a light-shielding part, the circuit board is positioned in the installation cavity, the light-transmitting part forms display characters, the light-shielding part prevents light emitted by the light source from transmitting through the display panel, a shielding layer is arranged on the lower surface or the upper surface of the substrate, the shielding layer forms the light-shielding part at a position except the display characters, when the light source does not emit light or the light source, the occlusion layer causes the display character not to be displayed.

A method of manufacturing a functional display for a vehicle, the functional display for a vehicle including a display panel, the substrate being a main body portion of the display panel, the method of manufacturing the display panel including the steps of,

s10, selecting a proper substrate;

s11, carving or silk-screening a light-transmitting part on the lower surface of the substrate;

s12, forming a light-shielding layer on the lower surface of the light-transmitting portion or the upper surface of the substrate;

the light-transmitting part comprises display characters, the light-transmitting part is carved or silk-screened on the lower surface of the substrate, the display characters are carved on the lower surface of the substrate, black light-transmitting ink is coated on the display characters or the lower surface of the substrate to form a light-transmitting layer, or the display characters are silk-screened on the lower surface of the substrate by the black light-transmitting ink, and the light-transmitting layer and the light-transmitting part are formed at the same time;

arranging a light shielding layer on the lower surface of the light transmission part or the upper surface of the base, wherein a black opaque ink layer is silk-screened at other positions except the display characters, or arranging a light filtering device on the upper surface of the substrate; the euphotic layer can ensure that the display characters display light effect when the light emitting source emits light, and the light shading layer can ensure that the display characters are invisible when the light emitting source does not emit light or the light emitted by the light emitting source does not reach the preset intensity.

The invention provides a functional display for a vehicle and a manufacturing method thereof, wherein the display comprises a display panel and a circuit board assembly, the circuit board assembly comprises a luminous source, the display panel is used as a functional display part, and light emitted by the luminous source is presented on the surface of the display through the display panel; the display panel comprises a light-transmitting part and a light-shielding part, the light-transmitting part is provided with display characters, the lower surface or the upper surface of the light-transmitting part is provided with a shielding layer, the shielding layer forms the light-shielding part, the light-shielding part prevents light emitted by the light-emitting source from passing through the display panel, the light-transmitting part and the light-isolating structure act together to enable the light-emitting source to display a black screen effect that the characters cannot display when the light does not emit or does not reach preset intensity, and meanwhile, the.

[ description of the drawings ]

FIG. 1 is a front isometric view of a functional display for a vehicle according to an aspect of the present invention;

FIG. 2 is an exploded view of the vehicle function display of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the vehicle functional display of FIG. 1;

FIG. 4 is a schematic top view of the base of FIG. 2 from one perspective;

FIG. 5 is a schematic top isometric view of a perspective of the base of FIG. 2;

FIG. 6 is a front view of the base of FIG. 2 from one perspective;

FIG. 7 is a schematic top view of the rear cover of FIG. 2 from one perspective;

FIG. 8 is a front view of the rear cover of FIG. 2 from one perspective;

FIG. 9 is a front view schematic diagram of one perspective of the circuit board assembly of FIG. 2;

FIG. 10 is a schematic isometric view of a second light-blocking structure provided in accordance with the present invention from a perspective of one embodiment;

FIG. 11 is a front view schematic of one perspective of the sign in FIG. 2;

FIG. 12 is an exploded view of the layers of the sign board of FIG. 2;

fig. 13 is a flow chart illustrating a method of manufacturing the identification panel.

[ detailed description ] embodiments

The invention will be further described with reference to the following figures and specific examples:

in the field of vehicle technology, functional displays for vehicles are used primarily for functional input and status display. The functional display for the vehicle generally comprises a display panel, a shell and a circuit board assembly, wherein the display panel can present corresponding light effects when the function is operated; the shell comprises a base and a rear cover, the base and the rear cover are fixedly connected to form a mounting cavity, and the circuit board is positioned in the mounting cavity; the circuit board assembly comprises a circuit board, a luminous source, a contact pin and the like, and electronic components such as the luminous source, the contact pin and the like are fixed with the circuit board and are electrically connected with the circuit board. The shell forms the whole outward appearance of automobile-used function display, and the shell can play certain guard action to the circuit board subassembly in the installation cavity, and circuit board subassembly can be used for function input and the signal conversion of automobile-used function display. The present invention provides a functional display for a vehicle, which is described in detail with reference to the following embodiments.

Referring to fig. 1 to 3 in combination, fig. 1 to 3 are schematic structural diagrams of a functional display for a vehicle according to the present invention. In this embodiment, the display panel of the vehicle function display is an identification panel. The direction of the marking plate towards the shell is defined as downward, and the direction of the marking plate towards the installation cavity is defined as inward. In this embodiment, the vehicle function display 100 includes an identification plate 1, a light guide plate 5, a base 2, a circuit board assembly 4, and a rear cover 3. Light guide plate 5 sets up between signboard 1 and base 2, signboard 1 covers in light guide plate 5, light guide plate 5 and 2 integrated into one piece of base or fixed connection, signboard 1 mainly used vehicle air conditioning system functional state's optical display, light guide plate 5 can make the even outgoing of light that the light source sent, base 2 can support for signboard 1 and light guide plate 5, base 2 and 3 joints of back lid and formation installation cavity, circuit board components 4 installs in this installation cavity, base 2 or the installation cavity still are provided with light-proof structure 6, light-proof structure 6 in this embodiment can with 2 integrated into one piece of base, also can set up alone.

Referring to fig. 4 to 9 in combination, fig. 4 to 9 are schematic structural diagrams of each element of the vehicle function display provided in this embodiment. The base 2 includes a first side wall 28 and a second side wall 29 which are oppositely arranged, a partition plate 20, a light-blocking portion 21, a connecting hole 22, a clamping hole 23, a guide groove 24, a buckle 25, a connecting rib 26 and a step portion 27. The partition board 20 and the light-blocking part 21 form a light-blocking structure 6, the partition board 20 is integrally formed with the first side wall 28 which is arranged oppositely, the partition board 20 divides the inner cavity of the base 2 into a plurality of independent spaces along the longitudinal direction of the base 2, each space corresponds to a preset light-emitting source, and each space corresponds to a display character of the identification board 1, so that the probability of the light channeling phenomenon between the display characters on the surface of the identification board 1 is reduced. The light-insulating part 21 is uniformly distributed along the connection part of the first side wall 28 of the base 2 and the partition plate 20, and the light-insulating part 21 can play a certain role of shielding light penetrating from the outside along the inner peripheral surface of the first side wall 28, so that the invisible black screen effect of the identification plate 1 for displaying characters when the light-emitting source does not emit light or the light-emitting source does not reach the preset intensity is improved; in this embodiment, the light-shielding portions 21 are symmetrically arranged along the partition board 20 and are in a dispersed square groove structure, and the light-shielding portions 21, the first side wall 28 and the partition board 20 form a labyrinth structure together, so as to ensure a better light-shielding effect; the connecting holes 22 are positioned on the first side wall 28 and close to the lower part of the base 2, the clamping holes 23 are positioned between the adjacent connecting holes 22, the guide groove 24 is positioned on the inner surface of the second side wall 29, and the connecting holes 22, the clamping holes 23 and the guide groove 24 can be used for connecting and/or limiting the base 2 and the rear cover 3; the outer peripheral surface of the second side wall 29 of the base 2 is further provided with a buckle 25 and a connecting rib 26, and the buckle and the connecting rib are mainly used for fixedly connecting the vehicle function display 100 and an air conditioning system; a step part 27 is circumferentially arranged along the inner surface of the first side wall 28 of the base 2, the height of the step part 27 is lower than that of the first side wall 28 of the base 2, the height of the step part 27 is the same as that of the partition board 20, the height of the light-insulating part 21 is lower than that of the step part 27, the light guide plate 5 and the identification plate 1 can be placed on the step part 27, the step part 27 supports the light guide plate 5 along the circumferential direction of the light guide plate 5, the partition board 20 supports the light guide plate 5 along the lower surface of the light guide plate, and the step part 27 and the partition board 20.

The rear cover 3 comprises a connecting port 30, a reinforcing rib 31, a convex part 32, a clamping rib 33 and a guide rib 34, wherein the connecting port 30 is arranged on the lower surface of the rear cover 3 and is used for the electric connection and/or signal connection of the circuit board 4 with the outside; the reinforcing ribs 31 are arranged on the side wall of the rear cover 3 and used for enhancing the mechanical strength of the side wall of the rear cover 3; boss 32 and direction muscle 34 set up in the outer peripheral face of back lid 3, joint rib 33 is located the both sides of boss 32, base 2 and back lid 3 seal installation, the inner peripheral surface of base 2 contacts with the outer peripheral face of back lid 3, boss 32 passes connecting hole 2, joint rib 33 passes joint hole 23, direction muscle 34 and guide way 24 swing joint, base 2 and back lid 3 joint, guide way 34 can follow guide way 24 and reciprocate, base 2 can follow the outer peripheral face of back lid 3 and reciprocate.

The circuit board assembly 4 includes a circuit board 40, a pin 41, a light source 42, etc., the pin 41 and the light source 42 are fixed to different sides of the circuit board 40, both the pin 41 and the light source 42 are electrically connected to the circuit board 40, the pin 41 passes through the connector 30 to be connected to an external power source and/or a signal source, the light source 42 is controlled to emit light or extinguish by external operation, and the lights emitted by the different light sources 42 are isolated by the partition board 20 and are displayed on the surface of the vehicle-used functional display 100 through the light guide plate 5 and the identification plate 1.

The light emitted by the light source 42 passes through the installation cavity and reaches the light guide plate 5, and is refracted and diffusely reflected in the light guide plate 5, so that the light brightness passing through the light guide plate 5 is uniform, and the influence of excessive light concentration on the light display effect of the sign board 1 is avoided. Of course, the light guide plate 5 may be designed as an integral structure with the base 2, and the light guide plate 5 provides support for the sign board 1. The light guide plate structure is not required to be arranged, and the light scattering agent is added into the light transmission layer of the identification plate 1, so that the purpose of uniformly transmitting light rays can be achieved.

In this embodiment, the light-blocking structure 6 includes a light-blocking portion 21, the light-blocking portion 21 is disposed at the joint of the base 2 and the partition 20, and is integrally formed with the base 2 and the partition 20, and the light-blocking portion 21 is formed by mutually matching a plurality of annular groove structures, so as to isolate an external light source and reduce the influence of the external light source on the light display effect of the displayed characters; light-proof portion 21 separates the light to external light source along the inner peripheral surface of base 2 to when realizing better that light emitting source 42 does not give out light or give off light and not reach preset intensity, the dark surrounds of installation intracavity can reduce the probability that scurrying light phenomenon on identification plate 1 surface takes place again when the light emitting source is luminous, is favorable to presenting better light display effect.

Of course, the light shielding effect can also be achieved by separately arranging the light shielding structure. Referring to fig. 3 and 10 in combination, the light-shielding structure 6 includes a partition 20 and a light-shielding member 60, and the partition 20 is similar to the first embodiment in structure and function and will not be described again. The light-proof member 60 is an independent detachable structure and made of a light-proof material, the light-proof member 60 is arranged between the base 2 and the circuit board 4 and is abutted against the inner circumferential surface of the base 2 along the outer circumferential surface of the circuit board 4 so as to prevent an external light source from entering the installation cavity through a connection gap, reduce light leakage in the installation cavity and further influence the black screen effect of the identification plate 1 when the light-emitting source 42 does not emit light. The light-shielding member 60 is of an annular structure and comprises a mounting groove 61, the light-shielding member 60 is abutted against the rear cover 3 through the mounting groove 61, and the fixation of the light-shielding member 60 is realized through the butt joint of the base 2 and the rear cover 3. When base 2 is connected with hou gai 3, separate light piece 60 respectively with the inner peripheral surface of base 2 and the outer peripheral face looks butt of hou gai 3, this kind of mounting means is favorable to when the shell is sealed, reduces the probability that external light gets into the installation cavity through joint gap to improve signboard 1's black screen effect. The design of the light-blocking structure can effectively reduce the probability of the display character error display of the identification plate.

Besides the design of the light-isolating structure, the invention also provides the identification plate, the light-isolating structure and the identification plate are mutually matched, so that the invisible black screen effect of the characters can be displayed when the light-emitting source does not emit light or does not emit light to reach the preset intensity, and the corresponding characters can be displayed when the light-emitting source emits light. Referring to fig. 11 to 13, fig. 11 to 13 are schematic diagrams of a first logo plate structure of a vehicle function display and a manufacturing method thereof according to the present invention, respectively. In this embodiment, a transparent PC board is selected as the substrate of the sign board 1, and the substrate is used as the main body of the sign board 1, and needs to have light-transmitting property and certain mechanical strength, and the transparent PC board can allow the light emitted from the light-emitting source 42 to pass through and be presented on the surface of the sign board 1. Identification plate 1 includes printing opacity portion 10 and shading portion 11, in this embodiment, printing opacity portion 10 forms to the display character, can allow the light that light source 42 sent to pass through, shading portion 11 does not allow the light to pass through, thereby make when light source 42 is luminous, only show corresponding light effect in identification plate 1's display character department, the lower surface silk screen printing black printing ink layer of printing opacity portion 10, the black opaque printing ink layer of lower surface silk screen printing of shading portion 11, and thus, because the black transparent printing ink layer of lower surface silk screen printing of printing opacity portion 10, make identification plate 1 demonstrate the invisible black screen effect of display character when light source 42 does not give out light or give out light and do not reach preset intensity. The process for making the sign 1 is as follows: selecting a transparent PC board as a substrate, silk-screening display characters on the lower surface of the substrate by adopting black light-transmitting ink to form a light-transmitting part 10, or engraving the display characters on the lower surface of the substrate and coating a black light-transmitting ink layer on the positions of the display characters, and silk-screening the black light-proof ink layer on other positions except the positions of the display characters to form a light-shielding part 11. The surface of the sign board 1 facing the base 2 is provided with a connecting layer, and the connecting layer is mainly used for connecting the sign board 1 and the light guide plate 5. In this embodiment, adopt M3468 viscose as the articulamentum, the articulamentum is connected base 2 and identification panel 1 and simultaneously can also form the protection to the printing ink layer, is favorable to prolonging identification panel 1's life.

See in particular fig. 13. The identification plate 1 provided by the invention sequentially comprises A, B, C, D four layers from top to bottom, wherein A is a substrate, B is a light transmission layer, C is a light shielding layer and D is a connecting layer. The specific manufacturing method comprises the following steps:

s10, selecting a proper substrate;

the substrate constitutes the main part of the sign 1. Therefore, it is necessary to select an appropriate base material as the substrate. Because the sign board surface only need show that the light effect can in the character department, the board needs to have certain light transmission performance, and other positions except that show the character can not have the light to permeate through. Therefore, light shielding processing is required for positions other than the display character. A transparent PC board is selected as the substrate, which is capable of optical transmission. The PC board has certain thickness and hardness, is convenient for display characters to carve or screen print, and the thickness range of the substrate is 0.35-0.38 mm.

S11, carving or silk-screening a light-transmitting part on the lower surface of the substrate;

and displaying the display characters on the back surface of the substrate in a carving or silk-screen mode after the substrate is selected. Carving or silk-printing a light-transmitting part on the lower surface of the substrate, wherein the step of carving or silk-printing a display character on the lower surface of the substrate comprises the step of carving the display character on the lower surface of the substrate and coating a black light-transmitting ink layer on the position where the display character is displayed or silk-printing the display character on the lower surface of the substrate by adopting the black light-transmitting ink, so that when the light-emitting source normally emits light, light penetrates through the light-transmitting part 10, and the corresponding display character. Different control functions correspond to different display characters, and the light effect presented by the display characters can enable the running state of the vehicle air-conditioning system to be more visual

The thickness range of the black light-transmitting ink layer is 20-30 um. The black light-transmitting ink layer can allow light to pass through, but is black, when the light emitting source does not emit light, and when the installation cavity is dark or the light is dark, the marking plate is seen from the upper side of the vehicle functional display 100, the marking plate 1 is black, and the display characters are invisible. The mode can simplify the production process, and reduce the cost while ensuring that the display characters are invisible when the luminous source does not emit light or the light does not reach the preset intensity.

S12, arranging a light shielding layer on the lower surface of the light transmission part or the upper surface of the marking plate;

the light shielding layer can be made of light-blocking material or black opaque ink, and the step of arranging the light shielding layer on the upper surface or the lower surface of the substrate includes arranging a light filtering device on the upper surface of the substrate or silk-screening the black opaque ink layer on the lower surface of the substrate except the position where the characters are displayed to form the light shielding portion 11. The light filtering device and the black light-tight ink layer are used for isolating light of the light-shielding part of the identification plate 1, the thickness range of the black light-tight ink layer is 20-30 microns, the light filtering device can adopt a black light-passing plate, the thickness of the light filtering device is 1.5-2 mm, the light filtering device is fixedly connected with the identification plate 1 relatively, the light filtering device or the black light-tight ink layer can filter light emitted by the light emitting source, the positions of the identification plate 1 except for display characters are guaranteed not to pass through light, the positions of the display characters can be guaranteed to pass through light by the black light-passing ink layer, therefore, the light emitted by the light emitting source can only be transmitted along the positions of. The light filtering device is arranged on the surface of the identification plate 1 and can also play a certain protection role on the identification plate.

Of course, when the light shielding layer is formed by disposing the light filtering device on the upper surface of the substrate, the sequence of S11 and S12 may be changed, that is, the light filtering device may be disposed on the upper surface of the substrate, and then the display characters may be silk-screened with black transparent ink on the lower surface of the substrate; when the light shielding portion 11 is a black opaque ink screen printing method, the sequence of S11 and S12 may not be changed.

The layer-by-layer silk screen printing of the black light-transmitting ink and the black light-tight ink is selected to better realize the black screen effect of the surface of the identification plate 1 except the display characters when the light-emitting source does not emit light or the light-emitting intensity does not reach the preset intensity.

In order to facilitate the connection of the marking plate and the base, the lower surface of the black ink layer covers the connecting layer after the marking plate is manufactured. In this embodiment, the tie coat adopts M3468 viscose, covers M3468 viscose at the lower surface of signboard 1, and when the signboard was not connected with the base, M3468 viscose was favorable to protecting the printing ink layer of signboard, avoided droing and the scraping of printing ink layer, made the signboard can normally show, can connect signboard and base simultaneously, and the connected mode is simple reliable, is favorable to improving the commonality of signboard. Of course, a snap fit or other mechanical connection may be used to connect the label plate to the base, and this is not to be taken to name a few.

In order to ensure that the displayed characters have uniform brightness, a light guide plate 5 is arranged between the base and the identification plate, and the light guide plate 5 can play a certain supporting role on the identification plate. The light guide plate can be made of frosted materials or light scattering powder is added into transparent materials, so that the transmission of a light path is changed, the refraction and scattering times of light are increased, and the brightness uniformity of the light when the light is emitted from the surface of the vehicle functional display is ensured. The light guide plate and the base are integrally formed or fixedly assembled. The light guide plate may also be disposed between the circuit board assembly 4 and the base 2, and the light emitted from the light source 42 is first scattered by the light guide plate 5 to form uniform light, and then transmitted to the surface of the sign board 1 along the mounting cavity to be displayed by the display characters.

By adopting the manufacturing method provided by the invention, the display characters of the identification plate can be ensured to show good light effect when the light emitting source emits light, the display characters are invisible when the light emitting source does not emit light, the display effect of the display characters is clear and accurate, the user experience is favorably improved, the process is simple, and the cost is lower.

It should be noted that: although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted for those skilled in the art, and all technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered by the claims of the present invention.

Claims (8)

1. A vehicle functional display comprises a display panel, a shell and a circuit board assembly, wherein the shell comprises a base and a rear cover, the base is hermetically connected with the rear cover to form a mounting cavity, the display panel is fixedly connected with the base, the circuit board assembly comprises a luminous source, the direction of the display panel departing from the base is defined to be upward, and the direction of the display panel facing the base is defined to be downward, the vehicle functional display is characterized in that the display panel comprises a light-transmitting part and a light-shielding part, the circuit board assembly is positioned in the mounting cavity, the light-transmitting part forms display characters, the light-shielding part prevents light emitted by the luminous source from transmitting through the display panel, a shielding layer is arranged on the lower surface or the upper surface of the base plate, the shielding layer forms the light-shielding part at a position except the display characters, and when the luminous source does not emit light or the luminous source cannot reach, the occlusion layer causes the display character not to be displayed.

2. The vehicular function display according to claim 1, characterized in that: the shielding layer comprises a black opaque ink layer and a light filtering device, wherein the black opaque ink layer is printed on the lower surface of the light transmission part in a silk-screen mode, or the light filtering device is arranged on the upper surface of the substrate.

3. The vehicular function display according to claim 1 or 2, characterized in that: the vehicle function display further comprises a light-isolating structure, the light-isolating structure can prevent external light from penetrating into the installation cavity, the light-isolating structure and the base are integrally formed, the light-isolating structure comprises a partition plate and light-isolating portions, the light-isolating portions are symmetrically arranged along the partition plate, the base comprises first side walls which are oppositely arranged and second side walls which are oppositely arranged, the first side walls and the second side walls are integrally formed, the partition plate is arranged between the first side walls which are oppositely arranged and integrally formed with the first side walls, and the light-isolating portions are uniformly distributed along the joints of the first side walls and the partition plate.

4. The vehicular function display according to claim 1 or 2, characterized in that: the vehicle function display further comprises a light isolation structure, the light isolation structure can block external light penetration into the installation cavity, the light isolation structure comprises a partition plate and a light isolation piece, the base comprises a first side wall and a second side wall, the first side wall and the second side wall are oppositely arranged, the first side wall and the second side wall are integrally formed, the partition plate is arranged between the first side wall and the first side wall, the first side wall and the second side wall are oppositely arranged, the partition plate is of an annular structure, the light isolation piece comprises a mounting groove, the light isolation piece is connected with the rear cover along the circumferential direction through the mounting groove, the base is fixedly connected with the rear cover, and the light isolation piece is fixed in the installation cavity through the base and the rear cover.

5. The vehicular function display according to any one of claims 1 to 4, characterized in that: the display panel comprises a substrate, the substrate is made of a light-transmitting material, a light-transmitting layer is arranged on the lower surface of the substrate and comprises a black light-transmitting ink layer, display characters are carved on the lower surface of the substrate, the black light-transmitting ink layer is coated on the positions where the characters are displayed, or the display characters are printed on the lower surface of the substrate through black light-transmitting ink silk screen.

6. The vehicular function display according to claim 5, characterized in that: the vehicle functional display further comprises a light guide plate, the light guide plate is arranged between the display panel and the base, and the light guide plate and the base are integrally formed or relatively fixedly connected.

7. The vehicular function display according to claim 6, characterized in that: and covering a connecting layer on the lower surface of the ink layer, and connecting the display panel with the base through the connecting layer.

8. A method for manufacturing a functional display for a vehicle, the functional display for a vehicle including a display panel, the substrate being a main body portion of the display panel, characterized in that: the method of manufacturing the display panel includes the steps of,

s10, selecting a proper substrate;

s11, carving or silk-screening a light-transmitting part on the lower surface of the substrate;

s12, forming a light-shielding layer on the lower surface of the light-transmitting portion or the upper surface of the substrate;

the light-transmitting part comprises display characters, the light-transmitting part is carved or silk-screened on the lower surface of the substrate, the display characters are carved on the lower surface of the substrate, black light-transmitting ink is coated on the display characters or the lower surface of the substrate to form a light-transmitting layer, or the display characters are silk-screened on the lower surface of the substrate by the black light-transmitting ink, and the light-transmitting layer and the light-transmitting part are formed at the same time;

arranging a light shielding layer on the lower surface of the light transmission part or the upper surface of the base, wherein a black opaque ink layer is silk-screened at other positions except the display characters, or arranging a light filtering device on the upper surface of the substrate; the euphotic layer can ensure that the display characters display light effect when the light emitting source emits light, and the light shading layer can ensure that the display characters are invisible when the light emitting source does not emit light or the light emitted by the light emitting source does not reach the preset intensity.

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