CN116300176A - Image generating device - Google Patents

Abstract

An image generating apparatus includes a housing, a liquid crystal display unit, a backlight unit, and a first fan. The shell is provided with a communicated space, a first opening and a second opening. The liquid crystal display unit is arranged in the space and at least partially aligned between the first opening and the second opening, and the liquid crystal display unit is configured to display images. The backlight unit is disposed in the space and configured to provide light to the liquid crystal display unit. The first fan is arranged outside the shell and is provided with an air outlet, the air outlet is communicated with the first opening, and the first fan is configured to blow air to the liquid crystal display unit. The image generating device can effectively dissipate heat of the liquid crystal display unit, so that the operation stability of the image generating device can be maintained.

Description

Image generating device

technical field

The present invention relates to an image generating device, and in particular to an image generating device for a head-up display (Head-Up Display; HUD).

Background technique

With the increasingly tense pace of life of modern people, the traffic on the road has become more and more busy, which will inevitably lead to traffic accidents. In order to enable the driver to keep paying attention to the situation on the road without looking down at the information on the dashboard, the head-up display for the car came into being.

Generally speaking, the head-up display can project the image on the front windshield, so that the driver can keep looking at the front and see the projected image at the same time, and the driver no longer needs to look down at the dashboard while the car is moving. Therefore, the operational stability of the head-up display is particularly important.

Contents of the invention

One of the objectives of the present invention is to provide an image generating device capable of effectively dissipating heat from a liquid crystal display unit disposed therein, thereby maintaining the operational stability of the image generating device.

According to an embodiment of the present invention, an image generating device includes a casing, a liquid crystal display unit, a backlight unit, and a first fan. The casing has a communicating space, a first opening and a second opening. The liquid crystal display unit is disposed in the space and at least partly aligned between the first opening and the second opening, and the liquid crystal display unit is configured to display images. The backlight unit is arranged in the space, and the backlight unit is configured to provide light to the liquid crystal display unit. The first fan is arranged outside the casing. The first fan has an air outlet connected to the first opening. The first fan is configured to blow air to the liquid crystal display unit.

In one or more embodiments of the present invention, the above-mentioned first opening has a first width greater than 10 mm, the air outlet is aligned with the first opening, and the area of the air outlet is the same as that of the first opening.

In one or more embodiments of the present invention, the above-mentioned first opening has a first width, and the first width is less than 10 mm. The image generating device further includes a first air duct. The first air guide pipe has a first nozzle and a second nozzle opposite, the second nozzle is larger than the first nozzle, the first air guide pipe is connected between the casing and the first fan, the first nozzle is aligned with the second nozzle One opening, the area of the first nozzle is the same as the area of the first opening, the second nozzle is aligned with the air outlet, and the area of the second nozzle is the same as the area of the air outlet.

In one or more embodiments of the present invention, the above-mentioned first opening may be slit-shaped, rectangular or circular.

In one or more embodiments of the present invention, the above-mentioned first fan may be an axial fan or a centrifugal fan.

In one or more embodiments of the present invention, the above-mentioned image generating device further includes a plurality of fins. The fins are arranged outside the casing.

In one or more embodiments of the present invention, the above-mentioned second opening has a second width, and the second width is greater than 10 mm. The image generating device further includes a second fan. The second fan is arranged outside the housing. The second fan has an air outlet. The air outlet communicates with and aligns with the second opening. The area of the air outlet is the same as the area of the second opening. The second fan is configured to exhaust the space.

In one or more embodiments of the present invention, the above-mentioned second opening has a second width, and the second width is less than 10 mm. The image generating device further includes a second fan and a second air duct. The second fan is arranged outside the casing, and the second fan has an air outlet. The second air guide pipe has a third nozzle and a fourth nozzle opposite to each other, the fourth nozzle is larger than the third nozzle, the second air guide pipe is connected between the casing and the second fan, and the third nozzle is aligned with the first fan. Two openings, the area of the third nozzle is the same as the area of the second opening, the fourth nozzle is aligned with the air outlet, the area of the fourth nozzle is the same as the area of the air outlet, the second fan is configured to pass through the second air duct Space convulsions.

The above embodiments of the present invention have at least the following advantages: since the air outlet of the first fan is aligned with the first opening of the casing, and the liquid crystal display unit is at least partially aligned between the first opening and the second opening in the space, therefore, from the first opening The airflow blown from the air outlet of a fan will take away the heat energy of the liquid crystal display unit through the second opening of the casing, thereby effectively dissipating heat from the liquid crystal display unit, thereby maintaining the operation stability of the image generating device.

Description of drawings

FIG. 1 is a schematic diagram illustrating the application of an image generating device according to an embodiment of the present invention.

FIG. 2 is an enlarged schematic diagram of a partial cross-section of the image generating device shown in FIG. 1 .

3-5 are front views illustrating the first opening according to different embodiments of the present invention.

FIG. 6 is a partial cross-sectional schematic diagram illustrating an image generating device according to another embodiment of the present invention.

FIG. 7 is a schematic partial cross-sectional view of an image generating device according to yet another embodiment of the present invention.

FIG. 8 is a schematic partial cross-sectional view of an image generating device according to another embodiment of the present invention.

Reference signs:

100: Image generating device

110: shell

120: Liquid crystal display unit

130: backlight unit

140: The first fan

150: The first air duct

160: fins

170: second fan

180: Second air duct

200: Head-up display

210: plane mirror

220: curved mirror

230:Adjust components

240: Front windshield

300: eyes

AI: Vent

AO: air outlet

OP1: first opening

OP2: second opening

SP: space

TO1: the first nozzle

TO2: the second nozzle

TO3: the third nozzle

TO4: the fourth nozzle

WD1: first width

WD2: second width

Detailed ways

A number of implementations of the present invention will be disclosed below with the accompanying drawings. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventional structures and components will be schematically shown in the drawings, and in all the drawings, the same reference numerals will be used to represent the same or similar components. And if possible in practice, the features of different embodiments can be used interchangeably.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have their ordinary meanings that can be understood by those skilled in the art. Furthermore, the definitions of the above-mentioned words in the commonly used dictionaries should be interpreted in the content of this specification as meanings consistent with the relevant fields of the present invention. Unless specifically defined, these terms are not to be interpreted in an idealized or overly formal sense.

Please refer to Figure 1. FIG. 1 is a schematic diagram illustrating the application of an image generating device 100 according to an embodiment of the present invention. In this embodiment, as shown in FIG. 1 , the present invention provides an image generating device 100, and the image generating device 100 is suitable for application in a head-up display (Head-Up Display; HUD) 200, such as a head-up display for a vehicle. . Specifically, the head-up display 200 includes a flat mirror 210, a curved mirror 220, an adjustment assembly 230, a front windshield 240, and the image generating device 100 provided by the present invention. The image generating device 100 is configured to project an image, the flat mirror 210 and the curved mirror 220 are configured to reflect the image, and the front windshield 240 is configured to reflect the image into the driver's eyes 300 to allow the user to see a virtual image. The adjustment component 230 is mechanically connected to the curved mirror 220 and configured to adjust the reflection angle of the curved mirror 220 to meet the driver's viewing angle.

Please refer to Figure 2. FIG. 2 is an enlarged schematic diagram of a partial cross-section of the image generating device 100 shown in FIG. 1 . In this embodiment, as shown in FIG. 2 , the image generating device 100 includes a housing 110 , a liquid crystal display unit 120 , a backlight unit 130 and a first fan 140 . The casing 110 has a communicating space SP, a first opening OP1 and a second opening OP2. The liquid crystal display unit 120 is disposed in the space SP and is at least partially aligned between the first opening OP1 and the second opening OP2, and the liquid crystal display unit 120 is configured to display images. The backlight unit 130 is disposed in the space SP, and the backlight unit 130 is configured to provide light to the liquid crystal display unit 120 . The first fan 140 is disposed outside the housing 110 . The first fan 140 has an air outlet AO connected to the first opening OP1 . The first fan 140 is configured to blow air to the LCD unit 120 from the air outlet AO. In practical applications, the first fan 140 may be an axial fan or a centrifugal fan, but the present invention is not limited thereto.

Further, the first opening OP1 of the casing 110 has a first width WD1 , and the first width WD1 is greater than 10 mm. The air outlet AO of the first fan 140 is aligned with the first opening OP1 of the housing 110 , and the area of the air outlet AO is the same as that of the first opening OP1 .

When the image generating device 100 is in operation, the image generating device 100 will generate heat energy to increase the temperature of the liquid crystal display unit 120. However, as mentioned above, since the air outlet AO of the first fan 140 is aligned with the first opening OP1 of the housing 110 , and the liquid crystal display unit 120 is at least partially aligned between the first opening OP1 and the second opening OP2 in the space SP, therefore, the airflow blown from the air outlet AO of the first fan 140 will pass the heat energy of the liquid crystal display unit 120 through The second opening OP2 of the casing 110 is taken away, thereby effectively dissipating heat from the liquid crystal display unit 120 , so that the operation stability of the image generating device 100 can be maintained.

Furthermore, as shown in FIG. 2 , since the first fan 140 is directly in contact with the housing 110, the airflow blown out from the air outlet AO of the first fan 140 and reaching the liquid crystal display unit 120 will encounter resistance. Therefore, the air volume and dynamic pressure blowing to the liquid crystal display unit 120 can be increased to improve the cooling effect on the liquid crystal display unit 120 .

On the other hand, as shown in FIG. 2 , the image generating device 100 further includes a plurality of fins 160 , and the fins 160 are disposed outside the casing 110 to improve the heat dissipation effect of the image generating device 100 .

Please refer to Figures 3-5. 3-5 are front views illustrating the first opening OP1 according to different embodiments of the present invention. According to actual conditions, as shown in FIGS. 3-5 , the first opening OP1 of the casing 110 may be slit-shaped, rectangular or circular.

Please refer to Figure 6. FIG. 6 is a schematic partial cross-sectional view of an image generating device 100 according to another embodiment of the present invention. In this embodiment, as shown in FIG. 6 , the second opening OP2 of the casing 110 has a second width WD2 , and the second width WD2 is greater than 10 mm. Furthermore, the image generating device 100 further includes a second fan 170 . The second fan 170 is arranged outside the casing 110. The second fan 170 has an air inlet AI. The air outlet AI is connected to and aligned with the second opening OP2. The area of the air inlet AI is the same as the area of the second opening OP2. The second fan 170 is configured Air is drawn from the space SP of the housing 110 through the air outlet AI. With the first fan 140 blowing air to the liquid crystal display unit 120, and the second fan 170 drawing air to the space SP of the casing 110, the flow velocity of the airflow in the space SP of the casing 110 can be increased, thereby enhancing the cooling effect on the liquid crystal display unit 120 . In practical applications, similarly, the second fan 170 can also be an axial fan or a centrifugal fan, but the present invention is not limited thereto.

Please refer to Figure 7. FIG. 7 is a schematic partial cross-sectional view of an image generating device 100 according to yet another embodiment of the present invention. In this embodiment, as shown in FIG. 7 , the first width WD1 of the first opening OP1 is less than 10 mm, and the image generating device 100 further includes a first air duct 150 . The first air guide pipe 150 has a first nozzle TO1 and a second nozzle TO2 opposite to each other. The second nozzle TO2 is larger than the first nozzle TO1. The first air guide pipe 150 is connected between the casing 110 and the first fan 140. Between, the first nozzle TO1 is aligned with the first opening OP1, the area of the first nozzle TO1 is the same as that of the first opening OP1, the second nozzle TO2 is aligned with the air outlet AO, and the area of the second nozzle TO2 is the same as that of the air outlet The area of AO. The first air duct 150 is configured to limit the airflow path blown from the air outlet AO of the first fan 140 to reach the first opening OP1.

Specifically, the airflow blown from the air outlet AO of the first fan 140 will pass through the first air duct 150 and arrive at the liquid crystal display unit 120 located in the casing 110, and the airflow then passes the heat energy of the liquid crystal display unit 120 through the casing. The second opening OP2 of 110 is taken away, so as to effectively dissipate heat from the liquid crystal display unit 120 .

Please refer to Figure 8. FIG. 8 is a schematic partial cross-sectional view of an image generating device 100 according to another embodiment of the present invention. In this embodiment, as shown in FIG. 8 , the second width WD2 of the second opening OP2 is less than 10 mm, and the image generating device 100 further includes a second fan 170 and a second air duct 180 . The second fan 170 is disposed outside the casing 110, and the second fan 170 has an air inlet AI. The second air guide pipe 180 has a third nozzle TO3 and a fourth nozzle TO4 opposite to each other, the fourth nozzle TO4 is larger than the third nozzle TO3, and the second air guide pipe 180 is connected between the casing 110 and the second fan 170 In between, the third nozzle TO3 is aligned with the second opening OP2, the area of the third nozzle TO3 is the same as that of the second opening OP2, the fourth nozzle TO4 is aligned with the air inlet AI, and the area of the fourth nozzle TO4 is the same as that of the air outlet In the area of AI, the second fan 170 is configured to exhaust the space SP through the second air duct 180 . The second air duct 180 is configured to limit the path of air drawn from the second opening OP2 to the air inlet AI.

Specifically, the airflow blown from the air outlet AO of the first fan 140 will pass through the first air duct 150 and reach the liquid crystal display unit 120 in the casing 110, while the air outlet AI of the second fan 170 will pass through the first air duct 150. The two air ducts 180 draw air to the space SP of the housing 110 to increase the flow velocity of the air in the space SP of the housing 110 , thereby enhancing the heat dissipation effect on the liquid crystal display unit 120 .

In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages: since the air outlet of the first fan is aligned with the first opening of the housing, the liquid crystal display unit is at least partially aligned with the first opening and the first opening in the space. Between the second openings, therefore, the airflow blown from the air outlet of the first fan will take away the heat energy of the liquid crystal display unit through the second opening of the casing, thereby effectively cooling the liquid crystal display unit, so the image can be maintained Generate operational stability of the device.

Although the present invention has been disclosed above in terms of implementation, it is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection should be defined by the scope of the attached patent application.

Claims (8)

1. An image generating apparatus, comprising:

a housing having a space, a first opening, and a second opening that are communicated;

a liquid crystal display unit disposed in the space and at least partially aligned between the first opening and the second opening, the liquid crystal display unit configured to display an image;

a backlight unit disposed in the space, the backlight unit configured to provide light to the liquid crystal display unit; and

the first fan is arranged outside the shell and is provided with an air outlet, the air outlet is communicated with the first opening, and the first fan is configured to blow air to the liquid crystal display unit.

2. The image generation device of claim 1, wherein the first opening has a first width, the first width being greater than 10 millimeters, the air outlet being aligned with the first opening, an area of the air outlet being the same as an area of the first opening.

3. The image generation device of claim 1, wherein the first opening has a first width, the first width being less than 10 millimeters, the image generation device further comprising:

the first air guide pipe is provided with a first pipe orifice and a second pipe orifice which are opposite, the second pipe orifice is larger than the first pipe orifice, the first air guide pipe is connected between the shell and the first fan, the first pipe orifice is aligned with the first opening, the area of the first pipe orifice is identical to that of the first opening, the second pipe orifice is aligned with the air outlet, and the area of the second pipe orifice is identical to that of the air outlet.

4. The image generation device of claim 1, wherein the first opening may be slit-shaped, rectangular, or circular.

5. The image generating apparatus according to claim 1, wherein the first fan may be an axial fan or a centrifugal fan.

6. The image generation apparatus of claim 1, further comprising: the fins are arranged outside the shell.

7. The image generation device of claim 1, wherein the second opening has a second width, the second width being greater than 10 millimeters, the image generation device further comprising:

the second fan is arranged outside the shell and is provided with an exhaust port, the exhaust port is communicated with and aligned with the second opening, the area of the exhaust port is identical to that of the second opening, and the second fan is configured to exhaust air to the space.

8. The image generation device of claim 1, wherein the second opening has a second width, the second width being less than 10 millimeters, the image generation device further comprising:

the second fan is arranged outside the shell and is provided with an exhaust opening; and

the second air guide pipe is provided with a third pipe orifice and a fourth pipe orifice which are opposite, the fourth pipe orifice is larger than the third pipe orifice, the second air guide pipe is connected between the shell and the second fan, the third pipe orifice is aligned with the second opening, the area of the third pipe orifice is identical to that of the second opening, the fourth pipe orifice is aligned with the air suction orifice, the area of the fourth pipe orifice is identical to that of the air suction orifice, and the second fan is configured to perform air suction on the space through the second air guide pipe.

Images