CN216139832U

CN216139832U - Double TFT screen motormeter dish and car

Info

Publication number: CN216139832U
Application number: CN202121934093.7U
Authority: CN
Inventors: 许佳慧; 李怡蒙
Original assignee: Heilongjiang Tianyouwei Electronic Co ltd
Current assignee: Heilongjiang Tianyouwei Electronics Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-29
Anticipated expiration: 2031-08-17

Abstract

The utility model provides a double-TFT (thin film transistor) screen automobile instrument panel and an automobile, which comprise two TFT display screens and a light-reflecting and light-transmitting plate obliquely arranged between the two TFT display screens, wherein the first TFT display screen is used for displaying a first image, a second image displayed by the second TFT display screen is positioned behind the light-reflecting and light-transmitting plate about a mirror image of the front surface of the light-reflecting and light-transmitting plate and has a preset distance with the first image, so that the mirror image and the first image can be seen from the front surface of the light-reflecting and light-transmitting plate. The light reflecting and transmitting plate comprises the polarizer layer, after the light of the second TFT display screen is irradiated on the front surface of the light reflecting and transmitting plate, a part of light is reflected by the light reflecting and transmitting plate to form a mirror image, the rest of light is refracted to enter the polarizer layer, and the included angle between the polarization direction of the part of light and the polarization direction of the polarizer layer is close to or equal to 90 degrees, so that most or all of light refracted to enter the polarizer layer can be filtered by the polarizer layer, the light reflected by the back surface of the light reflecting and transmitting plate is reduced, and the double image phenomenon is avoided.

Description

Double TFT screen motormeter dish and car

Technical Field

The utility model relates to the technical field of automobile instrument panels, in particular to a double TFT (thin film transistor) screen automobile instrument panel and an automobile.

Background

The prior art discloses publication numbers as follows: CN104960422A, name: patent application document of a motormeter 3D display structure, in which an image of an upper TFT screen is reflected by a semi-transmissive semi-reflective coated mirror to form a reflected virtual image; in addition, the light emitting diode on the PCB board shows an image through the dial plate, the image is transmitted out through the semi-transparent semi-reflective coating mirror to form a real image, and the real image and the virtual image are displayed in a staggered layer to form a 3D effect.

Light directive semi-transparent half reflection coating film mirror's that the TFT screen sent front, partly light forms a virtual image through semi-transparent half reflection coating film mirror's front reflection, remaining light refraction enters into semi-transparent half reflection coating film mirror in, this part light can be reflected again by semi-transparent half reflection coating film mirror's the back, form another virtual image, visible semi-transparent half reflection coating film mirror forms two the same virtual images, these two virtual images are at the fore-and-aft to leaving certain interval, the size of this interval depends on semi-transparent half reflection coating film mirror's thickness, two virtual images can form the ghost image, the ghost image can influence the presentation of 3D effect.

SUMMERY OF THE UTILITY MODEL

Based on the current situation, the utility model mainly aims to provide a double-TFT-screen automobile instrument panel and an automobile, so as to solve the problem of double images in the prior art.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a double TFT screen automobile instrument panel comprises two TFT display screens and a light reflecting and transmitting plate obliquely arranged between the two TFT display screens, the front surface of the light-reflecting and light-transmitting plate has light-reflecting property, the back surface of the light-reflecting and light-transmitting plate has light-transmitting property, the two TFT display screens are respectively a first TFT display screen and a second TFT display screen, the front surface of the first TFT display screen faces the back surface of the light-reflecting and light-transmitting plate, the front surface of the second TFT display screen faces the front surface of the light-reflecting and light-transmitting plate, the first TFT display screen is used for displaying a first image, the second TFT display screen is used for displaying a second image, the mirror image of the second image relative to the front surface of the light-reflecting and light-transmitting plate is positioned at the back of the light-reflecting and light-transmitting plate and has a preset distance with the first image, enabling the superposition of the mirror image and the first image to be seen from the front side of the light-reflecting and light-transmitting plate so as to form a 3D display effect through the cooperation of the first image and the second image;

wherein, the reflection of light-passing board includes range upon range of each other's polarisation lamella and glass layer, the lateral surface of polarisation lamella constitutes the front of reflection of light-passing board, the polarization direction of the positive polaroid of first TFT display screen is in projection on the lateral surface of the polarisation lamella of reflection of light-passing board is first direction, the polarization direction of the positive polaroid of second TFT display screen is in projection on the lateral surface of the polarisation lamella of reflection of light-passing board is the second direction, the polarization direction of the polarisation lamella of reflection of light-passing board is the third direction, first direction with contained angle between the third direction is located interval [0, 20 ] ], the second direction with contained angle between the third direction is located interval [70, 110 ] ].

The front of first TFT display screen with contained angle between the lateral surface of polarisation lamella is located interval [40, 50 ° ], the polarization direction of the positive polaroid of first TFT display screen with contained angle between the length direction of first TFT display screen is 45, the polarization direction of the positive polaroid of second TFT display screen with contained angle between the length direction of second TFT display screen is 45, the third direction for contained angle between the length direction of reflection of light transparent board is 45, wherein, the length direction of first TFT display screen the length direction of second TFT display screen with the length direction of reflection of light transparent board is roughly parallel.

The double-TFT-screen automobile instrument panel further comprises a control device, the control device comprises a plurality of input interfaces, the control device is connected with the first TFT display screen and the second TFT display screen, and the control device can control the display contents of the first TFT display screen and the second TFT display screen based on data input by the input interfaces so as to display information matched with the data through the matching of the first image and the second image.

The double-TFT-screen automobile instrument panel further comprises a first control unit and a second control unit, wherein the first control unit and the second control unit comprise a plurality of input interfaces, the first control unit is connected with the first TFT display screen, the second control unit is connected with the second TFT display screen, the first control unit can control the display content of the first TFT display screen based on first data input by the input interfaces, and the second control unit can control the display content of the second TFT display screen based on second data input by the input interfaces, so that the first image and the second image are matched to display information matched with the first data and the second data together.

The light reflecting and transmitting plate further comprises an antireflection film layer, and the antireflection film layer is arranged on the back side of the glass layer.

Each TFT display screen comprises a back shell, a circuit board, a backlight source, liquid crystal glass and a partition board, wherein the backlight source is arranged on the front side of the partition board, the liquid crystal glass is arranged on the front side of the backlight source, the circuit board is arranged on the back side of the partition board, the circuit board is connected with the liquid crystal glass through a first flat cable, the circuit board is connected with the backlight source through a second flat cable, and the back shell is positioned on the back side of the circuit board and fixedly connected with the partition board; the back shells of the two TFT display screens are fixedly connected through a connecting arm.

Each TFT display screen also comprises an outer frame which surrounds the periphery of the partition plate, the front side of the partition board and the outer frame form a first mounting space, the back side of the partition board and the outer frame form a second mounting space, the circuit board is positioned in the second mounting space, the backlight source and the liquid crystal glass are arranged in the first mounting space, the front surface of the liquid crystal glass is rectangular, the front surface of the backlight source is rectangular, the back surface of the liquid crystal glass is attached to the front surface of the backlight source, the four side edges of the liquid crystal glass are respectively flush with the four side edges of the backlight source, the four side edges of the liquid crystal glass are abutted against the inner side surface of the outer frame, the outer frame comprises four outer frame plates which are sequentially connected end to end, and at least part of the outer side face of the same outer frame plate is parallel to the inner side face of the outer frame plate.

The mirror image and the first image are both rectangular images, wherein:

the mirror image is equal to the first image in area, and the mirror image is overlapped with the first image in the direction perpendicular to the front surface of the first TFT display screen; alternatively, the first and second electrodes may be,

the mirror image and the first image are different in area, and in a direction perpendicular to the front face of the first TFT display screen, the image with the smaller area is located in the image range with the larger area.

The utility model also provides an automobile comprising the double TFT screen automobile instrument panel.

The utility model has the beneficial effects that:

in the automobile instrument panel provided by the utility model, the light rays emitted by the first TFT display screen and the second TFT display screen are linearly polarized light, due to the arrangement of the polarizer layer, after the light rays of the second TFT display screen are irradiated on the front surface of the light-reflecting and light-transmitting plate, a part of light rays are reflected by the front surface of the light-reflecting and light-transmitting plate to form a mirror image, the rest light rays are refracted into the polarizer layer, the polarization direction of the part of light rays is the second direction, and the included angle between the polarization direction of the part of light rays and the polarization direction of the polarizer layer is close to or equal to 90 degrees, so that most or all of the light rays refracted into the polarizer layer can be filtered by the polarizer layer, and the light rays reflected by the back surface of the light-reflecting and light-transmitting plate are reduced, and the ghost phenomenon is reduced or avoided.

Light irradiation of first TFT screen is at the back of reflection of light-passing board and gets into to the polarisation lamella, because the contained angle between the polarization direction of the light of first TFT screen and the polarization direction of polarisation lamella is less or be 0, therefore only few light can be filtered by the polarisation lamella in the light of first TFT screen, most light can see through the polarisation lamella smoothly, therefore the first image that first TFT screen was shown can not be observed from the external world to the polarisation lamella, therefore the stack of mirror image and first image can be seen simultaneously to people's eye, realize the demonstration of 3D effect.

Drawings

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

FIG. 1 is a schematic structural diagram of a dual TFT screen automobile dashboard according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the positions between a first image, a second image, and a mirror image;

FIG. 3 is a schematic diagram illustrating the positional shift of the mirror image with respect to the first image when the human eye switches between the A position and the B position;

FIG. 4 is a schematic view of the first TFT display screen, the second TFT display screen and the light-reflecting and light-transmitting plate in each polarization direction (the first TFT display screen is shown by liquid crystal glass on the first TFT display screen, and the second TFT display screen is shown by liquid crystal glass on the second TFT display screen);

fig. 5 is a schematic view of the mutual positions of the first direction, the second direction and the third direction on the light-reflecting and light-transmitting plate (the first TFT display screen is illustrated by liquid crystal glass on the first TFT display screen, and the second TFT display screen is illustrated by liquid crystal glass on the second TFT display screen) of the automobile instrument panel at the viewing angle of the front side of the light-reflecting and light-transmitting plate in front view;

FIG. 6 is a schematic view showing the first TFT display screen, the second TFT display screen and the light-reflecting and light-transmitting plate with polarization directions of 45 ° (the first TFT display screen is shown by liquid crystal glass on the first TFT display screen, and the second TFT display screen is shown by liquid crystal glass on the second TFT display screen);

FIG. 7 is an exploded view of the components of the TFT display;

FIG. 8 is a schematic structural view of the partition and the outer frame;

FIG. 9 is a cross-sectional view taken in the direction A-A of FIG. 8;

FIG. 10 is a schematic view of another structure of a dual TFT screen automobile instrument panel;

FIG. 11 is a schematic diagram of the light paths of the first light and the second light to the light-reflecting and light-transmitting plate.

In the figure:

1. a first TFT display screen; 2. a second TFT display screen; 3. a light reflecting and transmitting plate; 4. a connecting arm; 5. a first image; 6. a second image; 7. mirroring;

11. a back shell; 12. a circuit board; 13. a partition plate; 14. a backlight source; 15. liquid crystal glass; 16. an outer frame; 17. a first installation space; 18. a second installation space;

31. the polarization direction of the front polarizer of the first TFT display screen; 31', a first direction; 32. a third direction; 33. the polarization direction of the front polarizer of the second TFT display screen; 33', a second direction; 34. a polarizer layer; 35. a glass layer; 36. an anti-reflection film layer;

51. a pattern of a first image; 71. a mirrored pattern;

a. a second light ray; b. a portion of the second light; c. the rest of the second light; d. the first light ray.

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 nature of the present invention, well-known methods, procedures, 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 the orientation descriptions "back" and "front", the side facing the driver is the front, and the side facing away from the driver is the back. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The directions of upper, lower, front and rear are that the automobile instrument panel is in normal use state, the driver sits on the main driver seat, the side close to the eyes of the driver is front, the side far away from the eyes of the driver is back, the upper is upper, and the lower is lower, as shown in fig. 1 and fig. 2.

Referring to fig. 1, 2, 4, 5, and 11, an embodiment of the present invention relates to a dual TFT screen dashboard (hereinafter referred to as "dashboard") including two TFT display screens and a light-reflecting and light-transmitting plate 3 obliquely disposed between the two TFT display screens, wherein a front surface of the light-reflecting and light-transmitting plate 3 has a light-reflecting property, and a back surface of the light-reflecting and light-transmitting plate 3 has a light-transmitting property, and the light-reflecting and light-transmitting plate 3 only needs to be partially light-reflecting, i.e., has a light-reflecting property, and similarly, the back surface of the light-reflecting and light-transmitting plate 3 has a light-transmitting property, i.e., light directed to the back surface of the light-reflecting and light-transmitting plate 3 can pass through the light-reflecting and light-transmitting plate 3 and be emitted from the front surface of the light-reflecting and light-transmitting plate 3. For example, a smooth transparent plate, such as a glass plate, has both light-reflecting and light-transmitting properties, and thus can be used as the light-reflecting and light-transmitting plate 3; the two TFT display screens are respectively a first TFT display screen 1 and a second TFT display screen 2, the front (display surface) of the first TFT display screen 1 faces the back surface of the light-reflecting and light-transmitting plate 3, the front (display surface) of the second TFT display screen 2 faces the front surface of the light-reflecting and light-transmitting plate 3, the first TFT display screen 1 is used for displaying a first image 5, the second TFT display screen 2 is used for displaying a second image 6, the second image 6 is positioned behind the light-reflecting and light-transmitting plate 3 relative to the mirror image 7 on the front surface of the light-reflecting and light-transmitting plate 3 and has a preset distance with the first image 5, so that the superposed image of the mirror image 7 and the first image 5 can be seen from the front surface of the light-reflecting and light-transmitting plate 3, and a 3D display effect can be formed by the cooperation of the first image 5 and the second image 6; wherein, reflection of light-passing board 3 includes the polarizer layer 34 and the glass layer 35 that stack up each other, the lateral surface of polarizer layer 34 constitutes reflection of light-passing board 3's front, the polarization direction 31 of the positive polaroid of first TFT display screen is in projection on the lateral surface of polarizer layer 34 of reflection of light-passing board 3 is first direction 31', the polarization direction 33 of the positive polaroid of second TFT display screen is in projection on the lateral surface of polarizer layer 34 of reflection of light-passing board 3 is second direction 33', the polarization direction of polarizer layer 34 of reflection of light-passing board 3 is third direction 32, first direction 31' with contained angle alpha between the third direction 32 is located interval [0 ], 20 ° ], second direction 33' with contained angle beta between the third direction 32 is located interval [70 °, 110 ° ].

The front surface of the first TFT display screen 1 faces the back surface of the light-reflecting and light-transmitting plate 3, which does not mean that the front surface of the first TFT display screen 1 is parallel to the back surface of the light-reflecting and light-transmitting plate 3, and only light emitted by the first TFT display screen 1 needs to be ensured to be capable of irradiating the back surface of the light-reflecting and light-transmitting plate 3; in a similar way, "the front" of second TFT display screen 2 is towards reflection of light-passing board 3's front also only needs to ensure that the light that second TFT display screen 2 sent can shine reflection of light-passing board 3's front can.

For convenience of description, the dashboard of the vehicle is laid out as described in the following orientation. As shown in fig. 1, the front surface of the first TFT display screen 1 is in a vertical state or close to the vertical state (e.g., an included angle between the front surface of the first TFT display screen 1 and a vertical direction is within 10 °), the front surface of the first TFT display screen 1 is substantially forward, the light-reflecting and light-transmitting plate 3 is located on the front side of the first TFT display screen 1, and the light-reflecting and light-transmitting plate 3 is disposed in a front-back direction with respect to the vertical direction (the inclined angle of the light-reflecting and light-transmitting plate 3 with respect to the vertical direction is greater than 10 °), so that the upper side of the light-reflecting and light-transmitting plate 3 is backward with respect to the lower side of the light-reflecting and light-transmitting plate 3, that is, the front surface of the light-reflecting and light-transmitting plate 3 faces forward and upward, and the back surface of the light-reflecting and light-transmitting plate 3 faces backward and downward; the front surface of the second TFT display screen 2 is substantially horizontal or close to horizontal (for example, the included angle between the front surface of the second TFT display screen 2 and the horizontal plane is within 10 °), the second TFT display screen 2 is located above the light-reflecting and light-transmitting plate 3, and the front surface of the second TFT display screen 2 faces downward, so that the front surface of the second TFT display screen 2 faces the front surface of the light-reflecting and light-transmitting plate 3, and the front surface of the first TFT display screen 1 faces the back surface of the light-reflecting and light-transmitting plate 3. It should be noted that the above arrangement is only for convenience of understanding the present application, and does not mean the limitation of the included angle between the front surface of the first TFT display panel 1 and the front surface of the second TFT display panel 2.

Referring to fig. 2, 4, 5 and 11, when the first TFT display panel 1 is in a lighting state, the front surface of the first TFT display panel 1 displays a first image 5, the first image 5 emits a corresponding first light ray d forward, the first light ray d is polarized light, the polarization direction is the same as the polarization direction 31 of the front polarizer of the first TFT display panel, when the first light ray d passes through the glass layer 35 to the polarizer layer 34, the projection direction of the polarization direction of the first light ray d on the polarizer layer 34 is the first direction 31', since the angle alpha between the polarization direction of polarizer layer 34 (i.e. third direction 32) and first direction 31' is small (0 deg. -20 deg.), thus, only a small portion of the total first light rays d is filtered by the polarizer layer 34, and a large portion of the first light rays can pass through the polarizer layer 34, so that the first image 5 can be seen by human eyes positioned at the front side of the light-reflective and light-transmissive sheet.

Referring to fig. 2, 4, 5 and 11, when the second TFT display screen 2 is in a lighting state, the front surface of the second TFT display screen 2 displays a second image 6, the second image 6 emits a corresponding second light ray a downward, the second light ray a is also polarized light, and the polarization direction of the second light ray is the same as the polarization direction 33 of the front polarizer of the second TFT display screen, when the second light ray a irradiates the front surface of the polarizer layer 34, a part of the second light ray b is reflected (mirror-reflected) by the front surface of the polarizer layer 34, the part of the second light ray b is reflected and irradiates the human eye on the front side of the light reflecting and transmitting plate 3, so that a virtual image, that is, the mirror image 7 of the second image 6, is formed on the back surface of the light reflecting and transmitting plate 3, the rest of the second light ray c enters the polarizer layer 34, the polarization direction of the part of the second light ray c is a second direction 33' relative to the projection direction on the polarizer layer 34, since the angle β between the second direction 33 'and the polarization direction of the polarizer layer 34 (i.e., the third direction 32) is 70 ° -110 °, the second direction 33' is perpendicular or nearly perpendicular to the third direction 32, most or all of the second light c is filtered by the polarizer layer 34, thereby reducing the light reflected by the back surface of the light-reflecting and light-transmitting plate 3, and reducing or avoiding the occurrence of ghost image phenomenon.

In a state that the first TFT display screen 1 and the second TFT display screen 2 are simultaneously turned on, a human eye can simultaneously see the first image 5 and the mirror image 7, the first image 5 and the mirror image 7 form a preset distance in the front-rear direction, and when the human eye sees a combined image formed by the mirror image 7 and the first image 5, the combined image forms a 3D effect because the combined image has a depth gradation.

In a preferred embodiment, the mirror image 7 is parallel to the first image 5, so that the distances between each point in the mirror image 7 and the first image 5 are preset distances, and when the position of human eyes changes, the mirror image 7 in the combined image can shift relative to the first image 5, thereby preventing the mirror image 7 and the first image 5 from being staggered, and avoiding the situation of visual confusion.

Referring to fig. 3, taking the mirror image 7 in front and the first image 5 in back as an example, when the human eye observes the pattern 51 of the first image and the mirror image pattern 71 at the a position, since the mirror image pattern 71 is in front and the pattern 51 of the first image is in back, the mirror image pattern 71 blocks the X area of the pattern 51 of the first image, and it can be seen that the mirror image pattern 71 is located in the X area of the pattern 51 of the first image; when the human eye observes the pattern 51 of the first image and the mirrored pattern 71 at the B position, the mirrored pattern 71 blocks the Y area of the pattern 51 of the first image, and the mirrored pattern 71 is visible at the Y area of the pattern 51 of the first image. It can be seen that the pattern 51 of the first image is used as a reference due to the variation of the position of the human eye, and the pattern 71 of the mirror image is changed from the pattern 51 of the first image according to the variation of the position of the human eye, thereby realizing the aforementioned 3D effect.

Specifically, the included angle between the front surface of the first TFT display screen 1 and the front surface of the light-reflecting and light-transmitting plate 3 is equal to the included angle between the front surface of the second TFT display screen 2 and the front surface of the light-reflecting and light-transmitting plate 3, so that the mirror image 7 can be ensured to be parallel to the first image 5.

Since the TFT display screen is used to display the first image 5 and the second image 6, the TFT display screen can display dynamic images, and thus both the mirror image 7 and the first image 5 can be dynamic images, so that the continuous combined image seen by human eyes can form a dynamic naked-eye 3D effect.

Optionally, the first image 5 is located on the front side of the mirror image 7.

In a preferred embodiment, referring to fig. 6, the included angle between the front surface of the first TFT display screen 1 and the outer side surface of the polarizer layer 34 is located in an interval [40 °, 50 ° ], similarly, the included angle between the front surface of the second TFT display screen 2 and the outer side surface of the polarizer layer 34 is located in an interval [40 °, 50 ° ], the included angle between the polarization direction 31 of the front polarizer of the first TFT display screen and the length direction of the first TFT display screen 1 is 45 °, the polarization direction 33 of the front polarizer of the second TFT display screen and the length direction of the second TFT display screen 2 are 45 °, the included angle between the third direction 32 and the length direction of the light-reflecting and light-transmitting plate 3 is 45 °, wherein the length direction of the first TFT display screen 1, the length direction of the second TFT display screen 2 and the length direction of the light-reflecting and light-transmitting plate 3 are substantially parallel, the three should be kept parallel in theory, but considering the error in manufacturing, installation, etc., the "approximately parallel" may include the three being slightly inclined to each other, for example, the inclination angle is within 10 °.

An included angle between the polarization direction 31 of the front polarizer of the first TFT display screen and the length direction of the first TFT display screen 1 is 45 °, which means that: under the vertical state of putting of first TFT display screen 1, the front of first TFT display screen 1 is forward, and the bottom side of first TFT display screen 1 is located the downside, and at this moment, the contained angle between the polarization direction 31 of the front polaroid of first TFT display screen and the horizontal plane is 45.

The included angle between the polarization direction 33 of the front polarizer of the second TFT display screen and the length direction of the second TFT display screen 2 is 45 degrees, which means that: under the vertical state of putting of second TFT display screen 2, the front of second TFT display screen 2 is forward, and the front side of second TFT display screen 2 is located the downside (the front side of second TFT display screen 2 means, under the state shown in fig. 1, the front side of second TFT display screen 2, and under the state shown in fig. 6, the front side of second TFT display screen 2 just lies in the downside this moment), and the contained angle between the polarization direction 33 and the horizontal plane of the front polaroid of second TFT display screen this moment is 45.

The included angle between the third direction 32 and the length direction of the light reflecting and transmitting plate 3 is 45 °, which means that: under the vertical state of putting of reflection of light-passing board 3, the front of reflection of light-passing board 3 is forward, and the bottom side of reflection of light-passing board 3 is located the downside, and at this moment, the contained angle between polarization direction and the horizontal plane of the polarizer layer 34 of reflection of light-passing board 3 is 45.

Under the special placing condition (vertical placing state), the polarization direction 31 of the front polarizer of the first TFT display, the polarization direction 33 of the front polarizer of the second TFT display and the polarization direction of the polarizer layer 34 are the same for the first TFT display 1, the second TFT display 2 and the light-reflecting and light-transmitting plate 3, then the bottom side of the light-reflecting and light-transmitting plate 3 rotates forwards (rotates relative to the top side of the light-reflecting and light-transmitting plate 3) by a certain angle, the light-reflecting and light-transmitting plate 3 is positioned in front of the first TFT display 1, the second TFT display 2 is turned over by 180 degrees by taking one short side as an axis, the front side of the second TFT display 2 faces backwards, the front side of the second TFT display 2 rotates forwards (rotates relative to the rear side of the second TFT display 2) by twice the angle of the light-reflecting and light-transmitting plate 3, the front side of the second TFT display 2 faces downwards, the second TFT display screen 2 is moved to the upper side of the light-reflecting and light-transmitting plate 3, and the front side of the second TFT display screen 2 faces the front side of the light-reflecting and light-transmitting plate 3, so that the dashboard is formed.

Because the second TFT display screen 2 is turned 180 ° with one short side as an axis, the polarization direction 33 of the front polarizer of the second TFT display screen is also rotated 180 °, and at this time, the polarization direction 33 of the front polarizer of the second TFT display screen is also rotated 180 ° relative to the vertically placed state, so as to ensure that when the second TFT display screen 2 is located above the light-reflecting and light-transmitting plate 3, the second direction 33' is close to and perpendicular to the third direction 32, thereby preventing the ghost phenomenon.

Take the angle between the front surface of the first TFT display panel 1 and the front surface of the second TFT display panel 2 as an example of 90 °.

The included angle between the front surface of the first TFT display screen 1 and the front surface of the light-reflecting and light-transmitting plate 3 is 45 °, the included angle between the front surface of the second TFT display screen 2 and the front surface of the light-reflecting and light-transmitting plate 3 is 45 °, the polarization direction 31 of the front surface polarizer of the first TFT display screen is 45 °, the polarization direction of the first light is 45 ° with respect to the horizontal plane, the included angle α between the first direction 31 'and the third direction 32 is 9.6 °, the angle between the polarization direction 33 of the front surface polarizer of the second TFT display screen with respect to the long side direction thereof is 45 °, and the included angle β between the second direction 33' and the third direction 32 is 80.4 °.

In general, the angle of the polarization direction of the front polarizer on the TFT display screen relative to the length direction thereof is 45 °, so that the present invention does not need to specially adjust the polarizer on the TFT display screen, and only needs to ensure that the angle of the polarization direction of the polarizer layer 34 on the light-reflecting and light-transmitting plate 3 relative to the length direction thereof is 45 °, thereby solving the problem of double images.

In a preferred embodiment, the dashboard of the vehicle further includes a control device, the control device includes a plurality of input interfaces, the control device is connected to both the first TFT display screen 1 and the second TFT display screen 2, and the control device can control the display contents of the first TFT display screen 1 and the second TFT display screen 2 based on data input by the input interfaces, so as to display information matched with the data through the cooperation of the first image 5 and the second image 6.

The first TFT display 1 displays a first image 5, the second TFT display 2 displays a second image 6, a mirror image 7 of the second image 6 forms a combined image with the first image 5, the combined image is visible to the human eye, and the control device may receive signals from the input interface, which may include vehicle speed, engine speed, left turn, right turn, fuel quantity, vehicle light on, selected background images, etc. And changes the first image 5 or/and the second image 6 according to the received signal, so that the combined image seen by human eyes is changed, and the specific state of the vehicle is visually displayed through the transformation of the combined image.

In another preferred embodiment, the dashboard of the vehicle further includes a first control unit and a second control unit, the first control unit and the second control unit include a plurality of input interfaces, the first control unit is connected to the first TFT display screen 1, the second control unit is connected to the second TFT display screen 2, the first control unit can control the display content of the first TFT display screen 1 based on first data input by the input interfaces, and the second control unit can control the display content of the second TFT display screen 2 based on second data input by the input interfaces, so that information matching with the first data and the second data is displayed together through cooperation of the first image 5 and the second image 6.

The first control unit and the second control unit have respective input interfaces, and in some cases, some signals are only transmitted to the first control unit or the second control unit separately, for example, a left turn signal is only transmitted to the input interface on the first control unit, so that when a driver turns a left turn light, the left turn signal is transmitted to the first control unit, and a left turn icon is displayed on the first image 5. In other cases, some signals are transmitted to the first control unit and the second control unit at the same time, for example, a vehicle speed signal is transmitted to the first control unit and the second control unit at the same time, the first control unit controls the pointer position in the first image 5 to rotate, the vehicle speed signal is transmitted to the second control unit at the same time, and the second control unit controls the lighted area and color of the icon corresponding to the vehicle speed in the second image 6 to change (for example, the faster the vehicle speed, the more the lighted area, the faster the vehicle speed, the darker the color).

In a preferred embodiment, referring to fig. 11, the light-reflecting and light-transmitting plate 3 further includes an antireflection film layer 36, and the antireflection film layer 36 is disposed on the back side of the glass layer 35.

Because polarizer layer 34 can't be completely filtered the second light that refracts entering polarizer layer 34, there is the second light of less strong illuminance, by another virtual image that the back reflection of glass layer 35 formed the illuminance weak, through setting up anti-reflection film layer 36, the second light that passes polarizer layer 34 most can see through anti-reflection film layer 36 to the illuminance of another virtual image that makes to form is weaker, makes this another virtual image can't be perceived to people's eye.

In a preferred embodiment, referring to fig. 7 and 10, each of the TFT display panels includes a back shell 11, a circuit board 12, a backlight 14, a liquid crystal glass 15 and a partition 13, when an image is displayed on the TFT display panel, when the TFT display panel is in an on state, a direction of light emitted by the TFT display panel is a front direction, and an opposite direction is a back direction, the backlight 14 is disposed on a front side of the partition 13, the liquid crystal glass 15 is disposed on the front side of the backlight 14, the circuit board 12 is disposed on a back side of the partition 13, the circuit board 12 is connected to the liquid crystal glass 15 by a first flat cable, the circuit board 12 is connected to the backlight 14 by a second flat cable, and the back shell 11 is disposed on the back side of the circuit board 12 and fixedly connected to the partition 13; the back shells 11 of the two TFT display screens are connected and fixed through the connecting arm 4.

The circuit board 12 is connected with the backlight source 14 through a first flat cable, whether the backlight source 14 is lighted or not can be controlled through the circuit board 12, the circuit board 12 is connected with the liquid crystal glass 15 through a second flat cable, and the torsion of liquid crystal in the liquid crystal glass 15 can be controlled through the circuit board 12. When the backlight 14 is turned on, the backlight 14 emits white light toward the liquid crystal glass 15 on the front surface side, the circuit board 12 controls the twist of the liquid crystal in the liquid crystal glass 15, and partial light can pass through the liquid crystal glass 15 due to the twist of the liquid crystal to form an image. Specifically, the first TFT display panel 1 displays a first image 5, and the second TFT display panel 2 displays a second image 6.

In a preferred embodiment, the circuit board 12 of each TFT display panel can control the brightness of the backlight 14 connected to it, which means that the brightness of the backlight 14 of the first TFT display panel 1 can be the same as or different from the brightness of the backlight 14 of the second TFT display panel 2, and further, the brightness of the first image 5 can be the same as or different from the brightness of the second image 6; when the mirror image 7 and the first image 5 form a combined image, the brightness of the mirror image 7 is directly hooked with the brightness of the second image 6, so that the brightness of the first image 5 and the mirror image 7 can be adjusted according to actual needs, and a more vivid 3D effect is formed.

The setting of linking arm 4, make first TFT display screen 1 and second TFT display screen 2 even as an organic whole, make the position of first TFT display screen 1 and the position reciprocal anchorage of second TFT display screen 2, therefore when installing motormeter platform with motormeter, first TFT display screen 1, second TFT display screen 2 and linking arm 4 monolithic erection are on motormeter platform, thereby ensure that the mutual position relation between first TFT display screen 1 and the second TFT display screen 2 can not change, finally ensure that the 3D effect of composed image can remain stable.

In a preferred embodiment, referring to fig. 8 and 9, each of the TFT display panels further includes an outer frame 16, the outer frame 16 surrounds the partition 13, a first installation space 17 is formed between the front side of the partition 13 and the outer frame 16, a second installation space 18 is formed between the back side of the partition 13 and the outer frame 16, the circuit board 12 is located in the second installation space 18, the backlight 14 and the liquid crystal glass 15 are disposed in the first installation space 17, the front side of the liquid crystal glass 15 is rectangular, the front side of the backlight 14 is rectangular, the back side of the liquid crystal glass 15 is attached to the front side of the backlight 14, the four side edges of the liquid crystal glass 15 are flush with the four side edges of the backlight 14, the four side edges of the liquid crystal glass 15 abut against the inner side surface of the outer frame 16, the outer frame 16 includes four outer frame plates connected end to end in sequence, at least part of the outer side face of the same outer frame plate is parallel to the inner side face of the outer frame plate.

The partition board 13 and the outer frame 16 respectively form a first mounting space 17 and a second mounting space 18 which are independent of each other, so that the backlight source 14 and the liquid crystal glass 15 are respectively located in different mounting spaces relative to the circuit board 12, the backlight source 14 can generate certain heat under the condition of lighting, and the two independent spaces prevent the heat generated by the backlight source 14 from easily entering the space where the circuit board 12 is located, and prevent the excessive heat from influencing the operation of the circuit board 12.

At least part of the outer side surface of each outer frame plate is parallel to the inner side surface, so that the outer side surface is also parallel to the corresponding side edge of the liquid crystal glass 15, when the angle of the first TFT display screen 1 and the second TFT display screen 2 is adjusted, the position relation between the front surface of the first TFT display screen 1 and the front surface of the second TFT display screen 2 can be judged according to the position relation between the outer frame of the first TFT display screen 1 and the outer frame of the second TFT display screen 2, and whether the angle between the front surface of the first TFT display screen 1 and the front surface of the second TFT display screen 2 is approximately the designed angle can be judged visually

In a preferred embodiment, the mirror image 7 and the first image 5 are both rectangular images, wherein:

the mirror image 7 is equal in area to the first image 5, and the mirror image 7 coincides with the first image 5 in a direction perpendicular to the front surface of the first TFT display screen 1.

The area of the first image 5 is an area corresponding to the first image 5 (i.e., the maximum area of the first image 5) when all the liquid crystal glass 15 is twisted in the first TFT display panel 1; similarly, the area of the second image 6 is the area corresponding to the second image 6 (i.e. the maximum area of the second image 6) when all the liquid crystal in the liquid crystal glass 15 in the second display screen is twisted. In forming the combined image, the mirror image 7 corresponds dimensionally to the first image 5, so that any pattern element displayed on the mirror image 7, the corresponding location on the first image 5 (the projected location of the pattern element on the mirror image 7 on the first image 5) or/and the peripheral location (the peripheral location of the corresponding location) may display a mating pattern element corresponding to the aforementioned pattern element, with the pattern element on the mirror image 7 forming a 3D effect with the mating pattern element on the first image 5. The mirror image 7 thus coincides with the first image 5 in a direction perpendicular to the front of the first TFT display screen 1, enabling the display of cooperating pattern elements on the first image 5 that match the pattern elements on the mirror image 7, ensuring a 3D effect of the combined image.

In another preferred embodiment, the mirror image 7 has an area different from that of the first image 5, and the image with the smaller area is located in the image with the larger area in a direction perpendicular to the front surface of the first TFT display panel 1. Preferably, the area of the mirror image 7 is smaller than that of the first image 5, the mirror image 7 is located within the range of the first image 5 when the human eye views the combined image, and the mirror image 7 is located within the display range of the first TFT display screen 1 because the first image 5 is directly displayed by the first TFT display screen 1, so that the human eye intuitively generates that the first TFT display screen 1 simultaneously displays the first image 5 and the mirror image 7, and the reality of the combined image is enhanced.

The utility model also relates to an automobile which comprises the double TFT screen automobile instrument panel. Since the automobile instrument panel is mounted on the automobile, 3D display can be realized without generating a ghost problem.

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

Claims

1. The utility model provides a two TFT screen motormeter dish, its characterized in that includes that two TFT display screens and slope set up the reflection of light-passing board between two TFT display screens, the front of reflection of light-passing board has reflection of light characteristic, the back has the printing opacity characteristic, two the TFT display screen is first TFT display screen and second TFT display screen respectively, the front orientation of first TFT display screen the back of reflection of light-passing board, the front orientation of second TFT display screen the front of reflection of light-passing board, first TFT display screen is used for showing first image, second TFT display screen is used for showing the second image, the second image about the positive mirror image of reflection of light-passing board is located behind one's back of reflection of light-passing board and with preset interval has between the first image for can see from the front of reflection of light-passing board the mirror with the stack of first image, so as to form a 3D display effect by cooperation of the first image and the mirror image;

2. The double-TFT screen automobile instrument panel according to claim 1, wherein the included angle between the front surface of the first TFT display screen and the outer side surface of the polarizer layer is located within an interval [40 °, 50 ° ], the polarization direction of the front polarizer of the first TFT display screen and the included angle between the length directions of the first TFT display screen are 45 °, the polarization direction of the front polarizer of the second TFT display screen and the included angle between the length directions of the second TFT display screen are 45 °, the third direction is relative to the included angle between the length directions of the light-reflecting light-transmitting plate is 45 °, wherein the length direction of the first TFT display screen, the length direction of the second TFT display screen and the length direction of the light-reflecting light-transmitting plate are substantially parallel.

3. The dual TFT screen dashboard as recited in claim 1, further comprising a control device, wherein the control device comprises a plurality of input interfaces, the control device is connected to the first TFT display screen and the second TFT display screen, and the control device is capable of controlling display contents of the first TFT display screen and the second TFT display screen based on data input by the input interfaces, so as to display information matching with the data through cooperation of the first image and the second image.

4. The dual-TFT-screen dashboard of claim 1, further comprising a first control unit and a second control unit, wherein the first control unit and the second control unit comprise a plurality of input interfaces, the first control unit is connected to the first TFT display screen, the second control unit is connected to the second TFT display screen, the first control unit can control display contents of the first TFT display screen based on first data input through the input interfaces, and the second control unit can control display contents of the second TFT display screen based on second data input through the input interfaces, so that information matched with the first data and the second data is displayed through cooperation of the first image and the second image.

5. The double-TFT-screen automobile instrument panel according to claim 1, wherein the light reflecting and transmitting plate further comprises an antireflection film layer, and the antireflection film layer is arranged on the back side of the glass layer.

6. The dual-TFT-screen automobile dashboard according to any one of claims 1-5, wherein each of the TFT display screens comprises a back cover, a circuit board, a backlight source, a liquid crystal glass and a partition board, the backlight source is disposed on a front side of the partition board, the liquid crystal glass is disposed on a front side of the backlight source, the circuit board is disposed on a back side of the partition board, the circuit board and the liquid crystal glass are connected by a first flat cable, the circuit board and the backlight source are connected by a second flat cable, and the back cover is disposed on a back side of the circuit board and fixedly connected to the partition board; the back shells of the two TFT display screens are fixedly connected through a connecting arm.

7. The double-TFT automobile instrument panel according to claim 6, wherein each TFT display screen further comprises an outer frame surrounding the periphery of the partition plate, a first installation space is formed between the front side of the partition plate and the outer frame, a second installation space is formed between the back side of the partition plate and the outer frame, the circuit board is located in the second installation space, the backlight source and the liquid crystal glass are arranged in the first installation space, the front side of the liquid crystal glass is rectangular, the front side of the backlight source is rectangular, the back side of the liquid crystal glass is attached to the front side of the backlight source, the four side edges of the liquid crystal glass are flush with the four side edges of the backlight source respectively, the four side edges of the liquid crystal glass abut against the inner side surface of the outer frame, and the outer frame comprises four outer frame plates which are sequentially connected end to end, at least part of the outer side face of the same outer frame plate is parallel to the inner side face of the outer frame plate.

8. The dual TFT screen automotive instrument panel of any one of claims 1-7, wherein the mirror image and the first image are both rectangular images, wherein:

9. An automobile comprising the dual TFT screen automobile dashboard of any one of claims 1-8.