TWI658683B - Head mount display - Google Patents

Abstract

A head-mounted display device includes a body, a fan, a control module, and a gate. The body has a system side and a visible side. The fan and the control module are respectively arranged on the system side, and the fan is electrically connected to the control module. The gate can be arranged on the body open and closed and is located between the system side and the visible side. The gate is electrically connected to the control module. The control module drives and controls the opening and closing of the fan and the gate to circulate the air on the system side and the visible side.

Description

Head-mounted display

The invention relates to a head-mounted display device.

With the development of display devices, the size and weight of display devices are moving toward miniaturization. Therefore, head mount display (HMD) devices are often used to view virtual reality images and can meet a variety of Usage requirements.

Since the HMD device is used after being attached to the user's body, no matter what the display mode is, the HMD device and the body will form a closed space between the body and the lens chamber due to the mutual attachment. Once the body heats up, Dissipating to a confined space will cause the lens chamber to overheat due to the inability to escape from the HMD device, and even form water vapor to affect the user's vision. At the same time, once the HMD device cannot be tightly attached to the body, light from the external environment is also projected into the lens cavity, which affects the viewing quality.

According to this, how to solve the problems related to light and temperature at the same time is really a problem that technicians should think about.

The invention provides a head-mounted display device, which is provided with a fan and a gate to provide a heat dissipation effect to the system and the user at the same time.

The head-mounted display device of the present invention includes a body, a fan, a control module, and a gate. The body has a system side and a visible side. The fan and the control module are respectively disposed on the system side, and the fan is electrically connected to the control module. The gate can be arranged on the body open and closed and is located between the system side and the visible side. The gate is electrically connected to the control module. The control module drives and controls the opening and closing of the fan and the gate to circulate the air on the system side and the visible side.

Based on the above, the head-mounted display device uses a fan arranged on the system side and a gate that can be opened and closed between the visual side and the system side, so that the control module drives and controls the opening and closing of the fan and the gate according to demand, and then flows through the visual side With the air on the system side. According to this, it can effectively solve the sweltering feeling of the face that may be caused by the user when using the head-mounted display device, improve the comfort of use, and also provide the heat dissipation effect to the related electronic components on the system side.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

100‧‧‧ Head-mounted display device

110‧‧‧body

112, 114‧‧‧ opening

120‧‧‧Display element

130‧‧‧optical element

140‧‧‧control module

150‧‧‧Gate

160‧‧‧fan

162‧‧‧air inlet

164, 166‧‧‧outlet

170‧‧‧Sensor

S1‧‧‧Visible side

S2‧‧‧System side

FIG. 1 is a simplified schematic diagram of a head-mounted display device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of the head-mounted display device of FIG. 1 in another state.

FIG. 3 is an electrical relationship diagram of related components of the head-mounted display device of FIG. 1.

FIG. 4 is a schematic diagram of a head-mounted display device according to another embodiment of the present invention.

FIG. 1 is a simplified schematic diagram of a head-mounted display device according to an embodiment of the present invention. FIG. 2 is a schematic diagram of the head-mounted display device of FIG. 1 in another state. FIG. 3 is an electrical relationship diagram of related components of the head-mounted display device of FIG. 1. Please refer to FIG. 1 to FIG. 3 at the same time. In this embodiment, the head-mounted display device 100 includes a body 110, a display element 120, an optical element 130, a control module 140, a shutter 150, and a fan 160. The body 110 uses the optical element 130 as It is divided into different spaces such as the visible side S1 and the system side S2. Among them, the visible side S1 is used as the user's wearing place, and the system side S2 is used as the setting place of the electronic components for configuring the control module 140 (such as a circuit board) and the display. Element 120 and the like. In this way, the user can view the image generated by the display element 120 from the viewing side S1 through the optical element 130.

Here, the fan 160 is disposed on the system side S2, and the shutter 150 is openably arranged on the body 110 between the visible side S1 and the system side S2, and the shutter 150 corresponds to the fan 160. The fan 160, the display element 120, and the gate 150 are electrically connected to the control module 140, respectively. Accordingly, the control module 140 drives and controls the opening and closing of the fan 160 and the shutter 150 to allow the air between the system side S2 and the visible side S1 to flow smoothly.

In detail, the fan 160 of this embodiment is a cross-flow fan, which has an air inlet 162 and air outlets 164 and 166, and the air inlet 162 communicates with the opening 112 of the body 110 correspondingly, so that the air inlet 162 of the fan 160 can be driven from The external environment draws air. The air outlet 164 corresponds to the shutter 150, and the air outlet 166 faces the system side S2. according to Therefore, when the control module 140 drives the shutter 150 to close, the visible side S1 and the system side S2 are regarded as a space isolated from each other. At this time, the air outlet 164 of the fan 160 is also blocked by the gate 150, so the cooling air flow of the fan 160 is only It is blown to the system side S2 through the air outlet 166, so the fan 160 is mainly used to provide heat dissipation effect to the electronic components (such as the control module 140 and the display element 120) of the system side S2.

Next, referring to FIG. 2, when the control module 140 drives the shutter 150 to open and connects the visible side S1 and the system side S2, the air outlet 164 of the fan 160 is opened in response to the gate 150, so the fan 160 can pass through the air outlet 164 at the same time. 166 provides heat dissipation airflow, wherein the heat dissipation airflow through the air outlet 166 can still provide heat to the electronic components, and the heat dissipation airflow through the air outlet 164 can therefore flow to the visible side S1 to provide a heat dissipation effect on the user's face. According to this, the control module 140 can match the opening and closing of the fan 160 and the gate 150 to provide the required heat dissipation effect for the visible side S1 and the system side S2, and at the same time improve the user's operation of the head-mounted display device 100. Comfort. It should be mentioned that the detailed driving mechanism of the gate 150 is omitted here because it can be known from the prior art, so it will not be repeated here.

It should also be noted that the body 110 also has another opening 114 which is disposed on the opposite side of the aforementioned opening 112 to provide a desired air convection effect.

On the other hand, the head-mounted display device 100 of this embodiment further includes a sensor 170, which is electrically connected to the control module 140, so as to provide sensing data on the use status and environment of the head-mounted display device 100. The parameter conditions sensed by the controller 170 serve as a basis for the control module 140 to drive and control the fan 160 and the gate 150.

Further, the sensor 170 is, for example, at least a thermometer and a hygrometer. The first is to sense the temperature and humidity of the visible side S1 and the system side S2. When the measured temperature or humidity reaches a preset value, the control module 140 can open or close the shutter 150 or adjust the wind speed or volume of the fan 160 to provide the required heat dissipation effect to the visible side S1 or the system side S2. .

In addition, the sensor 170 may also be a gravity sensor, which is used as a sensing means of the movement state of the head-mounted display device 100. It should be noted that when the shutter 150 is opened, the external environment may be exposed to light from the system side S2 to the visible side S1 due to light leakage, thereby affecting the visual environment of the visible side S1, thereby reducing the user's operation of the head-mounted display device. 100 required immersive experience. According to this, the use state of the head-mounted display device 100 can be sensed by a gravity sensor. For example, when the head-mounted display device 100 is in a state of large shaking, the user is less likely to be visually affected by the outside. The influence of ambient light, so that the control module 140 can drive the shutter 150 to open for heat dissipation. Conversely, when the head-mounted display device 100 is in a state of small shaking, the user's vision is easily affected, and the shutter 150 needs to be closed at this time to maintain the completely dark state of the visible side S1.

On the other hand, the control module 140 can also be used as a basis for opening and closing the shutter 150 by sensing the brightness of the display element 120. For example, when the brightness of the display element 120 is high, for a user of the visible side S1, even if external light is irradiated to the visible side S1 through the shutter 150, it still fails to cause a visual effect to the user. The shutter 150 can maintain the open state, which is beneficial to provide heat dissipation to the visible side S1. On the contrary, when the brightness of the display element 120 is low, the light leakage effect caused by the opening of the shutter 150 is more obvious. Therefore, the shutter 150 needs to be maintained in a closed state at this time.

FIG. 4 is a schematic diagram of a head-mounted display device according to another embodiment of the present invention. The difference from the previous embodiment is that the shutter 150 is provided on the upper and lower sides of the optical element 130 in this embodiment. As shown in FIG. 4, the shutter 150 is in an opened state. At this time, by turning on the fan 160, the air convection between the visible side S1 and the system side S2 can be caused, and the heat dissipation effect can be improved accordingly. Other components not mentioned in this embodiment, and the startup timing of the gate 150 and the fan 160 are the same as those in the previous embodiment, and will not be repeated here.

In summary, in the above embodiment of the present invention, the head-mounted display device uses a fan arranged on the system side and a shutter that can be opened between the visible side and the system side, so that the control module drives and The fan and the gate are controlled to open and close, so as to circulate the air on the visible side and the system side. According to this, it can effectively solve the sweltering feeling of the face that may be caused by the user when using the head-mounted display device, improve the comfort of use, and also provide the heat dissipation effect to the related electronic components on the system side.

Furthermore, the control module of the head-mounted display device can also be used as a reference for the control module to drive the fan and the gate according to the parameter conditions sensed by the sensor. In addition to the sensor's ability to sense the temperature and humidity of the visible side and the system side, in order to prevent the light from the external environment from being placed on the visible side through the air inlet when the gate is opened, the sensor can also be a gravity sensor. The sensor determines the timing of opening and closing the gate by sensing the degree of shaking of the head-mounted display device. In addition, the control module can still be used as a basis for opening and closing the gate by the brightness of the display element. Furthermore, while performing the heat dissipation operation, the user's operating environment can also be taken into account to maintain the desired immersive experience effect.

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.

Claims (7)

A head-mounted display device includes: a body having a system side and a visible side; a fan and a control module respectively disposed on the system side, the fan is electrically connected to the control module; and a gate, which can be The gate is electrically connected to the body and is located between the system side and the visible side. The gate is electrically connected to the control module. The control module drives and controls the fan and the gate to open and close to circulate the system side and the gate. The visible side of the air. The head-mounted display device according to item 1 of the patent application scope, wherein the fan is a cross-flow fan. The head-mounted display device according to item 1 of the patent application scope, wherein the fan has at least two air outlets, one of the air outlets faces the gate, and the other air outlet faces the system side. The head-mounted display device described in item 1 of the scope of patent application, further includes a sensor, which is electrically connected to the control module, and the control module is based on a parameter condition sensed by the sensor. Open and close the gate. The head-mounted display device according to item 4 of the scope of patent application, wherein the control module adjusts the air volume and speed of the fan according to the parameter conditions sensed by the sensor. The head-mounted display device according to item 4 of the patent application scope, wherein the sensor includes at least one of a gravity sensor, a thermometer, or a hygrometer. The head-mounted display device according to item 1 of the scope of patent application, further comprising: a display element disposed on the system side and electrically connected to the control module, wherein the control module is based on the display brightness of the display element. To control the fan and the gate to open and close.