CN212694209U

CN212694209U - Segment code screen of automobile instrument panel, automobile instrument panel and automobile

Info

Publication number: CN212694209U
Application number: CN202022091780.9U
Authority: CN
Inventors: 温洪亮; 孙兴伟
Original assignee: Heilongjiang Tianyouwei Electronics Co ltd
Current assignee: Heilongjiang Tianyouwei Electronics Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-03-12
Anticipated expiration: 2030-09-22
Also published as: WO2022062091A1

Abstract

The utility model provides a section sign indicating number screen, motormeter dish and car of motormeter dish, section sign indicating number screen includes screen body and circuit unit, and the screen body includes first polaroid, first glass substrate, first drive ITO layer, liquid crystal layer, second drive ITO layer, second glass substrate, the second polaroid that stacks gradually the setting to and arrange in first polaroid with static derivation ITO layer between the first glass substrate, the edge of first polaroid is provided with the breach; a first electrical connection structure is arranged in the area of the static electricity lead-out ITO layer corresponding to the notch; the circuit unit comprises an electrostatic lead-out circuit board connected with the grounding end of the control circuit board, and the electrostatic lead-out circuit board is connected with a first electric connection structure of the electrostatic lead-out ITO layer through a binding process. The utility model discloses can improve on the section yard screen static discharge efficiency and avoid the influence of static discharge in-process to the display effect.

Description

Segment code screen of automobile instrument panel, automobile instrument panel and automobile

Technical Field

The utility model relates to an motormeter technical field, concretely relates to motormeter's section yard screen, motormeter dish and car.

Background

With the increasing improvement of people on the quality of life, automobiles are no longer simple tools for transportation, an instrument panel on the automobile generally comprises a segment code screen, a screen body of the segment code screen comprises a first polaroid, a first glass substrate, a first driving ITO layer (namely a nano indium tin metal oxide layer), a liquid crystal layer, a second driving ITO layer, a second glass substrate and a second polaroid which are sequentially stacked, the segment code screen often generates static electricity in the assembling and using processes, and in the existing segment code screen, the static electricity needs to sequentially pass through the first polaroid, the first glass substrate, the first driving ITO layer, the liquid crystal layer and the second driving ITO layer so as to be transmitted to a grounding end of a driving circuit board connected with the first driving ITO layer and the second driving ITO layer, and then is released.

However, in this way, on one hand, the path of electrostatic transmission is long, which is not favorable for rapid discharge of static electricity; and the first drive ITO layer and the second drive ITO layer on the segment code screen are both of graphical structures, and the actual effective transmission line is too thin, so that the transmission rate of static electricity transmitted to the segment code screen and the segment code screen is low, and static electricity is leaked too slowly. On the other hand, part of static electricity needs to pass through the liquid crystal layer, so that the display effect of the segment code screen is influenced in the static electricity discharge process.

SUMMERY OF THE UTILITY MODEL

Based on the above-mentioned current situation, the utility model discloses a main aim at provides motormeter dish's section yard screen, motormeter dish and car to solve the slow problem of static discharge on the section yard screen and the influence of static discharge in-process to the display effect.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a first aspect provides a section yard screen of motormeter dish, including screen body and circuit unit, the screen body includes the first polaroid, first glass substrate, first drive ITO layer, liquid crystal layer, second drive ITO layer, second glass substrate, the second polaroid that stacks gradually; the circuit unit comprises a driving circuit board connected with the first driving ITO layer and the second driving ITO layer;

a notch is arranged at the edge of the first polarizer; the screen body further comprises an electrostatic lead-out ITO layer, the electrostatic lead-out ITO layer is arranged between the first polarizer and the first glass substrate and covers the first glass substrate, and a first electric connection structure is arranged in an area, corresponding to the notch, of the electrostatic lead-out ITO layer;

the circuit unit further comprises a static electricity leading-out circuit board connected with the grounding end of the control circuit board on the instrument panel, the static electricity leading-out circuit board is provided with a second electric connection structure, and the first electric connection structure is connected with the second electric connection structure.

Preferably, the notches and the first electrical connection structures are provided with two groups and are respectively located on two sides of the driving circuit board.

Preferably, the static electricity derivation circuit board and the driving circuit board are located on the same side of the segment code screen.

Preferably, the first electrical connection structure and the second electrical connection structure form a hot-press connection structure through a binding process; the first electric connection structure comprises a first pin, the second electric connection structure comprises a second pin, and the projection of the first pin is located in the projection of the second pin along the thickness direction of the segment code screen.

Preferably, the static electricity is derived the circuit board with set up the counterpoint mark on the static electricity is derived the ITO layer respectively, the counterpoint mark is located in the breach, the counterpoint mark includes cruciform structure and M shape structure.

The invention provides an automobile instrument panel, which comprises a front shell, a segment code screen, a liquid crystal screen, a light guide cover, a control circuit board and a rear shell, wherein the front shell, the segment code screen, the liquid crystal screen, the light guide cover, the control circuit board and the rear shell are sequentially arranged, the segment code screen is any one of the segment code screens, a first polaroid of the segment code screen is opposite to the front shell, and the static electricity leading-out circuit board is connected with the grounding end of the control circuit board.

Preferably, a first installation cavity is formed in one side, facing the front shell, of the light guide cover, a second installation cavity is formed in the bottom surface of the first installation cavity, and a positioning groove is formed in the side wall of the first installation cavity; the liquid crystal display screen is installed in the second installation cavity, the segment code screen is installed in the first installation cavity, a positioning protrusion is arranged on the side wall of the segment code screen, and the positioning protrusion is matched with the positioning groove in a positioning mode.

Preferably, a first wire passing hole for the driving circuit board to pass through and a second wire passing hole for the static electricity leading-out circuit board to pass through are formed in the light guide cover, and the segment code screen and the control circuit board are respectively located on two sides of the light guide cover.

Preferably, a platform body connecting structure is arranged on the front shell, and a platform body locking hole is formed in the light guide cover and used for being connected with an instrument desk of the automobile.

Preferably, the segment code screen further comprises a color filter, and the color filter is attached to one surface, close to the liquid crystal screen, of the segment code screen.

A third aspect of the present invention provides an automobile, including an instrument desk and the automobile instrument panel as described in any one of the above, wherein an instrument window is provided on the instrument desk, and the automobile instrument panel is mounted on the instrument desk, and a display area of the instrument panel is exposed through the instrument window.

The utility model discloses a section sign indicating number screen, it derives the ITO layer to increase static between first polaroid and first glass substrate, the static on first polaroid surface can be transmitted to static fast and derive the ITO layer, be about to whole static derives the ITO layer as a ground plane, derive the ITO layer through static and be connected with control circuit board's earthing terminal, make static bleed fast, on the one hand, this structure does not need to transmit to first drive ITO layer because static, more do not need to pass through the liquid crystal layer, the route of static transmission has been shortened greatly, and then the efficiency of static bleed is improved; just the utility model discloses all set up the static with the whole face of first glass substrate and derive the ITO layer, and the structure of non-patterning, even whole static is derived the ITO layer and is the conductor, greatly increased the area of effectual static transmission line to further improve static transmission's efficiency.

The second aspect, the utility model discloses a section yard screen does not need to pass through the liquid crystal layer at the static in-process of releasing, consequently, can not exert an influence to the demonstration of section yard screen basically, and then is favorable to guaranteeing the high quality display of section yard screen.

In a third aspect, the static electricity leading-out ITO layer is disposed between the first glass substrate and the first polarizer, and first, the light of the light-transmitting static electricity leading-out ITO layer is not affected by the first polarizer, thereby further improving the display effect of the segment code screen; secondly, during manufacturing, after the static electricity lead-out ITO layer is formed on the first glass substrate, because the first polaroid is not arranged at the moment, the glass substrate has better temperature resistance, the first electric connection structure can be directly arranged on the first glass substrate, the static electricity lead-out circuit board is firstly bound with the static electricity lead-out ITO layer through a binding process, then the first polaroid is attached to the static electricity lead-out ITO layer, and at the moment, a notch is only required to be arranged at the position of the first polaroid corresponding to the electric connection structure, so that the performance of the first polaroid is not influenced, and the size of the static electricity lead-out ITO layer is consistent with that of the first glass substrate, so that the size of the whole segment code screen is reduced, and the space arrangement of the segment code screen and other structures is facilitated; more importantly, the connection part of the static lead-out ITO layer and the static lead-out circuit board is arranged in the projection surface of the screen body, and basically, the connection part cannot be touched in links such as transportation and assembly of the segment code screen, so that the possibility of damage to the segment code screen is reduced, and the reliability of the whole segment code screen is improved. And when the segment code screen is installed on the light guide cover, the light guide cover does not need to reserve an installation space for the first electric connection structure at one side of the light guide cover provided with the first electric connection structure, so that the size of the whole light guide cover can be reduced, and the structure of the whole instrument panel is more compact.

Other advantages of the present invention will be described in the detailed description, and those skilled in the art can understand the technical advantages brought by the technical features and technical solutions through the descriptions of the technical features and the technical solutions.

Drawings

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure:

FIG. 1 is a cross-sectional view of a preferred embodiment of a segment code screen provided by the present invention;

FIG. 2 is a top view of a preferred embodiment of a segment code screen provided by the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at I;

fig. 4 is a schematic structural diagram of a preferred embodiment of the dashboard of the vehicle provided by the present invention;

fig. 5 is an exploded view of a preferred embodiment of the instrument panel of the vehicle provided by the present invention;

fig. 6 is a schematic structural view of a preferred embodiment of the light guide cover in the dashboard of the vehicle provided by the present invention.

In the figure, the position of the upper end of the main shaft,

100. segment code screen; 110. a screen body; 111. a first polarizer; 1111. a notch; 112. a first glass substrate; 113. a first driving ITO layer; 114. a liquid crystal layer; 115. a second driving ITO layer; 116. a second glass substrate; 117. a second polarizer; 118. electrostatically deriving the ITO layer; 120. a circuit unit; 121. a drive circuit board; 122. a static electricity leading-out circuit board; 1221. a second electrical connection structure; 1222. an outgoing line; 1223. aligning and marking;

200. a front housing; 210. platform body connecting structure

300. A cover plate;

400. a liquid crystal screen;

500. a light guide cover; 510. a platform body locking hole; 520. a first wire passing hole; 530. a second wire passing hole; 540. a second mounting cavity; 550. a first mounting cavity;

600. a control circuit board;

700. a rear housing.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the spirit of the present invention, well-known methods, procedures, flows, and components have not been described in detail.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The utility model provides a section sign indicating number screen 100 for motormeter dish, as shown in fig. 1-3, including screen body 110 and circuit unit 120, screen body 110 is including the first polaroid 111 that stacks gradually the setting, first glass substrate 112, first drive ITO layer 113, liquid crystal layer 114, second drive ITO layer 115, second glass substrate 116, second polaroid 117, first drive ITO layer 113, second drive ITO layer 115 is graphical structure layer, liquid crystal layer 114 has a plurality of liquid crystal molecules, can encapsulate liquid crystal molecules at first drive ITO layer 113, second drive ITO layer 115 through gluing isotructure with frame. The circuit unit 120 includes a driving circuit board 121 connected to the first driving ITO layer 113 and the second driving ITO layer 115, so as to make liquid crystal molecules in the liquid crystal layer 114 show different states, such as different light transmission effects, by driving the first driving ITO layer 113 and the second driving ITO layer 115.

The edge of the first polarizer 111 is provided with a notch 1111, that is, the notch 1111 may be formed by inward recessing of the edge of the first polarizer 1111, and may specifically be in a rectangular structure, a semicircular structure, or other structures. The panel body 110 further includes an electrostatic discharge ITO layer 118, the electrostatic discharge ITO layer is disposed between the first polarizer 111 and the first glass substrate 112 and covers the first glass substrate 112, that is, the size of the electrostatic discharge ITO layer 118 is the same as that of the first glass substrate 112, so that static electricity at each position of the first polarizer 111 can be directly transmitted to the electrostatic discharge ITO layer 118 along the thickness direction of the segment code panel 100 (i.e., the stacking direction of the first polarizer 111, the first glass substrate 112, the first driving ITO layer 113, the liquid crystal layer 114, the second driving ITO layer 115, the second glass substrate 116, and the second polarizer 117), and a first electrical connection structure (not shown in the figure) is disposed in a region of the electrostatic discharge ITO layer 118 corresponding to the notch 1111. The circuit unit 120 further includes a static electricity derivation circuit board 122 for connecting with a ground terminal of a control circuit board 600 (described in detail below) on the dashboard, the static electricity derivation circuit board 122 is provided with a second electrical connection structure 1221, and the first electrical connection structure is connected with the second electrical connection structure 1221, specifically, through a binding process, so as to discharge static electricity on the static electricity derivation ITO layer 118 through the static electricity derivation circuit board 121.

In the segment code screen 100 provided in the above embodiment, the static electricity lead-out ITO layer 118 is added between the first polarizer 111 and the first glass substrate 112, during the manufacturing, assembling or using process of the segment code screen 100, when static electricity is generated on the surface of the first polarizer 111, the static electricity is directly conducted to the static electricity lead-out ITO layer 118, that is, the whole static electricity lead-out ITO layer 118 is used as a ground layer, and then the static electricity lead-out ITO layer is quickly discharged through the static electricity lead-out circuit board 122, after the segment code screen 100 is installed on an automobile instrument panel, the static electricity lead-out circuit board 122 is connected with the ground terminal of the control circuit board 600, so that the static electricity is quickly discharged through the. According to the segment code screen structure, on the first hand, static electricity on the first polarizer 111 does not need to be transmitted to the first driving ITO layer 113 and does not need to pass through the liquid crystal layer 114, so that a static electricity transmission path is greatly shortened, and the static electricity leakage efficiency is further improved.

Wherein, above-mentioned static is derived ITO layer 118 and also can be set to graphical structure, if only set up at first glass substrate 112's edge all around, however, the static of the first polaroid 111 center department of this kind must conduct earlier and just can reach static and derive ITO to the edge, has reduced the efficiency of static transmission, and the utility model discloses all set up static and derive ITO layer 118 with first glass substrate 112's whole face, but not graphical structure, that is to say, make whole face static derive ITO layer and be the conductor, greatly increased the area of effectual static transmission line to further improve the efficiency of static transmission, and adopt this kind of whole ITO layer, manufacturing process is also fairly simple, can also improve the manufacturing efficiency of section code screen.

In a second aspect, the utility model discloses a section yard screen 100 need not pass through liquid crystal layer 114 at the static in-process of releasing, consequently, can not exert an influence to the display effect of section yard screen 100 basically, and then is favorable to guaranteeing the high quality display of section yard screen 100.

In some embodiments, the static electricity guiding ITO layer 118 is disposed on a side of the first polarizer 111 away from the first glass substrate 112, so as to also achieve an effect of quickly guiding static electricity on the surface of the segment code screen 100. However, in this manner, since the first polarizer 111 has regions that are transparent to light and regions that are opaque to light, the color of the regions of the ITO layer 118 through which static electricity is conducted is weakened, thereby affecting the display effect of the segment code screen 100. In this way, because the temperature of the binding process is high and is limited by the material of the polarizer (such as TAC composite material mentioned later), the polarizer cannot bear the high temperature, so the connection between the static electricity derivation ITO layer 118 and the static electricity derivation circuit board 122 generally cannot adopt the binding process, and even if the binding process is forcibly adopted, the first electrical connection structure of the static electricity derivation ITO layer 118 is necessarily arranged at the outer side of the first glass substrate 112, but in this way, the first polarizer 111 may still be affected during the binding process with the static electricity derivation circuit board 122; more seriously, the joint of the static electricity lead-out ITO layer 118 and the static electricity lead-out circuit board 122 is arranged outside the projection of the screen body 110, so that the joint is easily damaged in the processes of transportation, assembly and the like, and the reliability of the segment code screen 100 is reduced; at the same time, the overall size of the segment yard screen 100 is increased, which is not conducive to fit and spatial arrangement with other structures. In the present invention, the static electricity leading-out ITO layer 118 is disposed between the first glass substrate 112 and the first polarizer 111, and firstly, the light passing through the static electricity leading-out ITO layer 118 is not affected, so that the display effect of the segment code screen 100 can be improved; secondly, during manufacturing, after the static electricity lead-out ITO layer 118 is formed on the first glass substrate 112, since the first polarizer 111 is not provided, and the glass substrate has good temperature tolerance, the static electricity lead-out circuit board 122 and the static electricity lead-out ITO layer 118 can be bound through a binding process, and then the first polarizer 111 is attached to the static electricity lead-out ITO layer 118, only the notch 1111 needs to be arranged at a position of the first polarizer 111 corresponding to the first electrical connection structure, so that the performance of the first polarizer 111 is not affected, and the size of the static electricity lead-out ITO layer 118 is consistent with that of the first glass substrate 112, that is, the first electrical connection structure is located on the first glass substrate 112, thereby reducing the volume of the whole segment code screen 100, and facilitating spatial arrangement of the segment code screen and other structures. More importantly, by adopting the structure, the joint of the static electricity lead-out ITO layer 118 and the static electricity lead-out circuit board 122 is arranged in the projection (along the thickness direction of the screen body 110) of the screen body 110, the joint is not easy to touch in the processes of transportation, assembly and the like, the possibility of damage of the joint is reduced, and therefore the reliability of the segment code screen 100 is improved. And when the segment code screen 100 is installed in the light guide cover 500, the light guide cover 500 does not need to reserve an installation space for the first electrical connection structure at the side thereof where the first electrical connection structure is provided, so that the size of the whole light guide cover 500 can be reduced, and the structure of the whole instrument panel is more compact.

The formation processes of the first glass substrate 112, the first driving ITO layer 113, the liquid crystal layer 114, the second driving ITO layer 115, and the second glass substrate 116 may use processes well known to those skilled in the art, and thus, details are not described herein, for example, the first driving ITO layer 113 and the second driving ITO layer 115 may be formed by a plating process. The ITO layer 118 may be formed on the first glass substrate 112 by a coating process using a segment code screen forming process commonly used in the art.

Specifically, the first polarizer 111 and the second polarizer 117 are TAC composite films and are respectively bonded to the electrostatic discharge ITO layer 118 and the second driving ITO layer 115 by an optical adhesive. The static electricity derivation ITO layer 118, the first driving ITO layer 114, and the second driving ITO layer 115 are light-permeable conductive film layers. The driving circuit board 1221 and the static electricity discharge circuit board 122 are both flexible circuit boards to facilitate connection of the segment code screen 100 to other components. When the static electricity leading-out circuit board 122 and the static electricity leading-out ITO layer 118 are bound, the static electricity leading-out circuit board 122 and the static electricity leading-out ITO layer 118 can be mechanically and electrically connected through an ACF adhesive, specifically, the ACF adhesive can be firstly pressed to a first electric connection structure under the temperature of 130-150 ℃ and the pressing force of 0.1-0.2 MPa, the pressing is continuously carried out for 4.5-5.5 seconds, then a second electric connection structure 122 is aligned to the first electric connection structure, the pressing force of 0.072-0.172 MPa is selected to carry out pre-pressing for 2.5-3.5 seconds under the temperature of 40-60 ℃, then the pressing force of 0.317-0.333 MPa is selected to carry out the first pressing for 12-14 seconds under the temperature of 215-235 ℃, and the pressing force of 0.372-0.388 MPa is selected to carry out the second pressing for 12-14 seconds under the temperature of 215-235 ℃, so that the first electric connection structure and the second electric connection structure 1221 can be better. The driving circuit board 1221 may also be connected to the first driving ITO layer and the second driving ITO layer by using a binding process, which may be referred to above specifically, and will not be described herein again. It should be noted that, although the above binding process has given the temperature range, pressure range and pressing time of each process step, the present invention is not limited thereto, and in actual operation, the value may be in any range, or may be selected according to actual needs.

Preferably, the static electricity exporting circuit board 122 is a bar structure, one end of which is provided with the second electrical connection structure 1221, and the other end of which is connected to the ground terminal of the control circuit board 600. Specifically, as shown in fig. 3, the static electricity discharging circuit board 122 further includes a lead 1222 connected to the second electrical connection structure 1221, the lead 1222 extends along the length direction of the bar structure, and has one end connected to the second electrical connection structure 1221 and the other end provided with a third electrical connection structure (not shown) connected to the ground terminal of the control circuit board 600.

The first electrical connection structure includes a first pin, the second electrical connection structure 1221 includes a second pin, the first pin and the second pin may be a circular structure or a bar structure, the sizes of the first pin and the second pin may be equal or unequal, preferably, along the thickness direction of the segment code screen 100, the projection of the first pin is located in the projection of the second pin, i.e., the area of the first leads is smaller than that of the second leads, and thus, when the static electricity derivation circuit board 122 is bonded to the static electricity derivation ITO layer 118, even if the second electrical connection structure 1221 is slightly deviated, the contact area between the static electricity discharging circuit board 122 and the static electricity discharging ITO layer 118 can be ensured, the conduction efficiency and the reliability of the connection between the two can be ensured, therefore, the alignment difficulty in the process of binding the static electricity leading-out circuit board 122 and the static electricity leading-out ITO layer 118 is reduced, and the assembly efficiency of the segment code screen 100 is improved. For example, as shown in fig. 3, the first lead and the second lead are both bar-shaped structures, and the width of the first lead is smaller than that of the second lead.

It is understood that the alignment mark 1223, also called as an alignment mark, is disposed on the static electricity output circuit board 122 and the static electricity output ITO layer 118, respectively, and is located in the projection of the gap, that is, the alignment mark 1223 is disposed near the first electrical connection structure, specifically, the alignment mark 1223 includes a cross-shaped structure and an M-shaped structure. In the binding process, the alignment marks 1223 of the static electricity leading-out circuit board 122 and the static electricity leading-out ITO layer 118 are aligned, and then the subsequent processes such as pressing are performed.

The static electricity leading-out circuit board 122 may be only provided with one, or may be provided with two or more, when a plurality of (including two) static electricity leading-out ITO layers 118 are provided with a plurality of first electrical connection structures, and correspondingly, the first polarizer 111 is also provided with a plurality of gaps 1111, so that static electricity on the static electricity leading-out ITO layers 118 can be conducted out through the plurality of static electricity leading-out circuit boards 122, thereby further improving the static electricity conduction efficiency of the whole segment code screen 100, and reducing the influence of the static electricity on the segment code screen 100. As shown in fig. 2, the notch 1111 and the first electrical connection structure are provided with two sets of structures, and are respectively located on two sides of the driving circuit board 1221, so as to further improve the efficiency of static electricity derivation, and by adopting such a structure, the structure of the whole segment code screen can be optimized, and the structural arrangement is more reasonable. Of course, two or more first electrical connection structures may be disposed on only one side of the driving circuit board 1221, or a plurality of first electrical connection structures may be disposed on both sides of the driving circuit board 1221.

No matter first electric connection structure 1221 is provided with several, outgoing line 1222 can all be provided with many, many outgoing lines 1222 set up side by side, if two, three, five, six, ten, twelve etc. when adopting many outgoing lines 1222, can further increase electrostatic transmission's efficiency, improve the antistatic effect of section yard screen 100. In one embodiment of the present invention, ten outgoing lines 1222 are provided for connecting with the ground terminal of the control circuit board 600. By adopting the static electricity lead-out circuit board 122, the efficiency of static electricity lead-out on the static electricity lead-out ITO layer 118 can be improved, the width of the whole static electricity lead-out circuit board 122 is not too large, the space is saved, the wiring of the segment code screen 100 on the whole instrument panel is facilitated, and the cost is lower by adopting the structure of the ten lead-out wires 1222.

When the static electricity lead-out circuit board 122 is disposed, the static electricity lead-out circuit board 122 and the driving circuit board 121 may be located on the same side of the segment code screen 100, or may be located on different sides, and when the static electricity lead-out circuit board 122 and the driving circuit board 121 are located on the same side, the wiring of the whole segment code screen 100 is facilitated, and particularly, when the segment code screen 100 is installed on an instrument panel, each outgoing line 1222 of the segment code screen 100 may be connected to the control circuit board 300 from one side of the segment code screen 100, and even if there are other components (such as a light guide cover 500 described later) between the segment code screen 100 and the control circuit board 300, a line passing hole may be formed only on one.

The utility model also provides an automobile instrument panel, as shown in fig. 4-6, including the procapsid 200 that sets gradually, section sign indicating number screen 100, LCD screen 400, leaded light cover 500, control circuit board 600 and back casing 700, the first polaroid 111 of section sign indicating number screen 100 is relative with procapsid 200 (in the embodiment that provides later on, when being provided with apron 300), one side that first polaroid 111 belonged to is the demonstration side of section sign indicating number screen 100 promptly, static is derived circuit board 122 and is connected with control circuit board 600's earthing terminal, specifically, static is derived circuit board 122's third electrical property link and is connected with control circuit board 600. As described above, when the segment code screen 100 is installed on the dashboard, the static electricity on the segment code screen 100 is transferred to the ground terminal of the control circuit board 600 through the static electricity conducting circuit board 122, and then is discharged quickly, so as to improve the anti-static performance of the entire dashboard.

It is understood that the driving circuit board 121 is also connected to the control circuit board 600 to control the operation of the segment code screen 100 through the control circuit board 600 and the driving circuit board 121.

Specifically, the segment code screen 100 and the liquid crystal screen 400 are installed on the front side of the light guide cover 500 (i.e., the side facing the front housing 200), as shown in fig. 6, the front side of the light guide cover 500 is provided with a first installation cavity 550, the bottom surface of the first installation cavity 550 is provided with a second installation cavity 540, the liquid crystal screen 400 is installed on the second installation cavity 540, and the segment code screen 100 is installed on the first installation cavity 550. In order to improve the installation accuracy of the segment code screen 100, the sidewall of the segment code screen 100 is provided with a positioning protrusion, the positioning protrusion may be formed by protruding outward from the sidewall of the segment code screen 100, the positioning protrusion may be provided in plurality and may be disposed on the top surface of the segment code screen 100, and the positioning protrusion may be specifically disposed on at least one of the first glass substrate 112 and the second glass substrate 116 of the segment code screen 100. The lateral wall of first installation cavity 550 is provided with positioning groove, can be by the inside sunken formation of lateral wall, positioning groove with fix a position protruding correspond the setting can, when section yard screen 100 is installed in first installation cavity 550, fix a position protruding and positioning groove location fit.

The control circuit board 600 is installed at the rear side of the light guide cover 500 and can be connected in a screw connection mode, a clamping connection mode and the like, and a backlight source such as an LED light source is installed on the control circuit board 600; the light guide cover 500 is provided with a light hole 551, the light hole 551 is arranged on the bottom surface of the first installation cavity 550 and is arranged on the outer side of the second installation cavity 540, and the light hole 551 corresponds to the backlight source. Thus, after the backlight source is turned on, light irradiates the segment code screen 100 through the light holes, and can be used as the backlight of the segment code screen 100.

The dashboard of the vehicle may further include a cover plate 300, which may be disposed at the front side of the front case 200 to make the entire dashboard of the vehicle look like a whole, or may be disposed between the front case 200 and the segment yard screen 100, that is, the cover plate 300 covers the display side of the segment yard screen 100, and regardless of how the cover plate 300 is disposed, it is preferably an integral black glass plate to make the entire dashboard of the vehicle form a whole, thereby improving the visual effect of the dashboard of the vehicle; and the cover plate 300 can protect the segment code screen 100 and the liquid crystal screen 400. The front housing 200 and the rear housing 700 are respectively connected to the light guide cover 500, and may be specifically connected by means of clamping, screwing, and the like, as shown in fig. 4 to 6, the front housing 200 is clamped to the light guide cover 500, and the rear housing 700 is screwed to the light guide cover 500. Preferably, in order to ensure the assembly accuracy, the front case 200, the rear case 700 and the light guide cover 500 may be further provided with a positioning structure.

Be provided with stage body connection structure 210 on the procapsid 200, light guide cover 500 is provided with stage body locking hole 510 for be connected with the instrument desk of car, specifically, stage body connection structure 210 can be elastic buckle to install motormeter panel in the car through stage body connection structure 210, then retaining member locks motormeter panel and instrument desk through stage body locking hole 510 like the screw. By adopting the structure, the automobile instrument panel can be directly arranged on the front surface of the instrument desk, thereby being beneficial to installation and later maintenance.

When the segment code screen 100 and the control circuit board 600 are respectively located at two sides of the light guide cover 500, the driving circuit board 121 and the static electricity leading-out circuit board 122 can bypass the edge of the light guide cover 500 to be connected with the control circuit board 600, in a preferred embodiment, a first wire passing hole 520 for the driving circuit board 121 to pass through and a second wire passing hole 530 for the static electricity leading-out circuit board 122 to pass through are arranged on the light guide cover 500, the first wire passing hole 520 and the second wire passing hole 530 can be arranged at the edge of the light guide cover 500 to avoid the influence on other structures, after the arrangement, the space of the light guide cover 500 can be fully utilized, the driving circuit board 121 and the static electricity leading-out circuit board 122 cannot expose the automobile instrument panel, so that the segment code screen 100 and the control circuit board 600 can be better protected, and. The control circuit board 600 may be provided with an external connection terminal, so that the dashboard is electrically connected to other components of the vehicle, and specifically, the external connection terminal may be disposed on one side of the control circuit board 600 departing from the light guide cover 600 and penetrates out or exposes out of the rear housing 700.

Generally, section yard screen 100 is black and white to show, certainly also has the section yard screen of color display, but this kind of section yard screen price ratio is higher, the utility model discloses a preferred embodiment, motormeter dish still includes color filter (not shown in the figure), color filter laminates in the one side that section yard screen 100 is close to LCD 400, specifically, have the window that corresponds with LCD 400 on the color filter, and with the corresponding colored printing opacity district of display area of section yard screen 100 and the black area that corresponds with the non-display area of section yard screen 100, color filter also is located the one side that light guide cover 500 deviates from control circuit board 600, it can through double faced adhesive tape etc. adhere in the one side that section yard screen 100 deviates from apron 300, so set up after, after the backlight is lighted, light passes through color filter, appear to be the color display effect at the demonstration side of section yard screen 100.

Furthermore, the utility model also provides a car, including instrument desk and foretell motormeter dish, be provided with the instrument window on the instrument desk, motormeter dish passes through procapsid 200 and installs in the instrument desk, specifically is connected with the instrument desk through stage body connection structure 210, and exposes the display area of panel board through the instrument window.

It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.

It will be understood that the above-described embodiments are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions may be made in the details described herein by those skilled in the art without departing from the basic principles of the invention.

Claims

1. The segment code screen (100) of the automobile instrument panel comprises a screen body (110) and a circuit unit (120), wherein the screen body (110) comprises a first polaroid (111), a first glass substrate (112), a first driving ITO layer (113), a liquid crystal layer (114), a second driving ITO layer (115), a second glass substrate (116) and a second polaroid (117) which are sequentially stacked; the circuit unit (120) comprises a driving circuit board (121) connected with the first driving ITO layer (113) and the second driving ITO layer (115); it is characterized in that the preparation method is characterized in that,

a notch (1111) is formed in the edge of the first polarizer (111); the screen body (110) further comprises an electrostatic discharge ITO layer (118), the electrostatic discharge ITO layer (118) is arranged between the first polarizer (111) and the first glass substrate (112) and covers the first glass substrate (112), and a first electric connection structure is arranged in a region, corresponding to the notch (1111), of the electrostatic discharge ITO layer (118);

the circuit unit (120) further comprises a static electricity leading-out circuit board (122) connected with a grounding end of the control circuit board (600) on the instrument panel, the static electricity leading-out circuit board (122) is provided with a second electric connection structure (1221), and the first electric connection structure is connected with the second electric connection structure (1221).

2. The segment code screen (100) according to claim 1, wherein the notches (1111) and the first electrical connection structure are provided in two sets, and are respectively located on two sides of the driving circuit board (121).

3. The segment code screen (100) according to claim 1, characterized in that the static electricity derivation circuit board (122) and the driving circuit board (121) are located on the same side of the segment code screen (100).

4. The segment code screen (100) according to any of claims 1-3, wherein the first electrical connection structure and the second electrical connection structure (1221) form a thermocompression connection structure by a bonding process; the first electrical connection structure comprises a first pin, the second electrical connection structure (1221) comprises a second pin, and the projection of the first pin is located in the projection of the second pin along the thickness direction of the segment code screen (100).

5. Segment code screen (100) according to any one of claims 1 to 3, characterized in that alignment marks (1223) are provided on the static electricity derivation circuit board (122) and the static electricity derivation ITO layer (118), respectively, the alignment marks (1223) are located in the notch (1111), and the alignment marks (1223) comprise a cross-shaped structure and an M-shaped structure.

6. The automobile instrument panel is characterized by comprising a front shell (200), a segment code screen (100), a liquid crystal screen (400), a light guide cover (500), a control circuit board (600) and a rear shell (700), wherein the front shell (200), the segment code screen (100), the light guide cover (500), the control circuit board (600) and the rear shell (700) are sequentially arranged, the segment code screen (100) is the segment code screen (100) of any one of claims 1 to 5, a first polaroid (111) of the segment code screen (100) is opposite to the front shell (200), and a static electricity derivation circuit board (122) is connected with a grounding end of the control circuit board (.

7. The instrument panel according to claim 6, wherein a side of the light guide cover (500) facing the front housing (200) is provided with a first mounting cavity (550), a bottom surface of the first mounting cavity (550) is provided with a second mounting cavity (540), and side walls are provided with positioning grooves; liquid crystal display (400) install in second installation cavity (540), section yard screen (100) install in first installation cavity (550), the lateral wall of section yard screen (100) is provided with the location arch, the location arch with positioning groove location fit.

8. The dashboard according to claim 6, wherein the light guide cover (500) is provided with a first wire through hole (520) for the driving circuit board (121) to pass through and a second wire through hole (530) for the static electricity leading-out circuit board (122) to pass through, and the segment code screen (100) and the control circuit board (600) are respectively located at two sides of the light guide cover (500).

9. The dashboard of claim 6, wherein said front housing (200) is provided with a platform connection structure (210), and said light guide cover (500) is provided with a platform locking hole (510) for connecting with the dashboard of said vehicle.

10. The dashboard of any of claims 6 to 9, further comprising a color filter attached to a side of the segment code screen (100) adjacent to the liquid crystal screen (400).

11. An automobile comprising an instrument desk and the automobile instrument panel of any one of claims 6 to 10, wherein an instrument window is provided on the instrument desk, the automobile instrument panel is mounted on the instrument desk, and a display area of the instrument panel is exposed through the instrument window.