Electronic device and display device

Abstract

To appropriately control the power supply to two communication circuits.SOLUTION: An electronic device includes a first communication circuit that controls the first communication, a second communication circuit that controls the second communication and has a heat generation amount greater than that of the first communication circuit when driven, one or more processors that control the supply of power to the first communication circuit and the second communication circuit, a temperature adjustment system for adjusting the temperature of the second communication circuit, and a first sensor that detects the state of the temperature adjustment system, and when the one or more processors determine on the basis of the detection result of the first sensor that the temperature adjustment system is not operating normally, they execute a first mode in which power is supplied to the first communication circuit and power is not supplied to the second communication circuit.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an electronic device and a display device. [Background technology]

[0002] Patent Document 1 discloses a projector device that executes a standby state C in which both wired and wireless network communication functions are enabled. In the technology of Patent Document 1, in standby state C, not only is power supplied to a wired network I / F that handles wired communication turned on, but also to a wireless network I / F that handles wireless network communication. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-164833 Summary of the Invention [Problem to be solved by the invention]

[0004] Control of power supply to the wired network I / F and wireless network I / F in standby state C needs to be optimized according to the operating state of the projector device, but this is not taken into consideration in Patent Document 1. [Means for solving the problem]

[0005] An electronic device according to one embodiment of the present invention comprises a first communication circuit that controls first communication, a second communication circuit that controls second communication and generates a heat output greater than that of the first communication circuit when driven, one or more processors that control the supply of power to the first communication circuit and the second communication circuit, a temperature adjustment system that adjusts the temperature of the second communication circuit, and a first sensor that detects the state of the temperature adjustment system, and when the one or more processors determine based on the detection result of the first sensor that the temperature adjustment system is not operating normally, the one or more processors execute a first mode in which power is supplied to the first communication circuit and power is not supplied to the second communication circuit.

[0006] A display device according to one embodiment of the present invention comprises an optical system for displaying an image, a first communication circuit for controlling first communication, a second communication circuit for controlling second communication and having a heat generation amount greater than that of the first communication circuit when driven, one or more processors for controlling the supply of power to the first communication circuit and the second communication circuit, a temperature adjustment system for adjusting the temperature of the second communication circuit, and a first sensor for detecting the state of the temperature adjustment system, and when the one or more processors determine based on the detection result of the first sensor that the temperature adjustment system is not operating normally, they execute a first mode in which power is supplied to the first communication circuit and power is not supplied to the second communication circuit. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a diagram showing a schematic configuration of a projector according to an embodiment of the present invention. [Figure 2] 10 is a flowchart showing each process executed by a processor. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following drawings, the scale of each component may be different from the actual scale in order to make each component large enough to be recognizable.

[0009] Fig. 1 is a diagram showing a schematic configuration of a projector 1 according to the present embodiment. The projector 1 is an example of an electronic device and also an example of a display device. As shown in Fig. 1, the projector 1 includes an optical system 30, a first communication circuit 40, a second communication circuit 50, a temperature adjustment system 60, a first sensor 70, a second sensor 80, a storage device 90, and a processor 100.

[0010] The optical system 30 is a system for displaying an image and includes a light source device 10, two dichroic mirrors 11 and 14, three reflecting mirrors 12, 17, and 19, five relay lenses 13, 15, 16, 18, and 20, a dichroic prism 21, a projection optical system 22, and three liquid crystal panels 23R, 23G, and 23B.

[0011] The light source device 10 emits white light L0 to a dichroic mirror 11. The amount of white light L0 emitted from the light source device 10 is controlled by a processor 100. The light source device 10 includes a blue laser device 31, a laser driving device 32, a phosphor wheel 33, and a wheel motor 34.

[0012] Blue laser device 31 emits blue light at an amount of light corresponding to a drive current supplied from laser drive device 32. Laser drive device 32 supplies a drive current to blue laser device 31 based on a current command value instructed by processor 100. Phosphor wheel 33 is a disc-shaped phosphor, and is rotated by wheel motor 34. Wheel motor 34 rotates at a rotation speed corresponding to a rotation speed command value instructed by processor 100.

[0013] Yellow light is generated by irradiating a portion of the blue light emitted from the blue laser device 31 onto the phosphor wheel 33. The light source device 10 generates white light L0 by combining the blue light emitted from the blue laser device 31 and the yellow light generated by the phosphor wheel 33.

[0014] The dichroic mirror 11 separates the white light L0 into a first color light L1 and a second color light L2. For example, the first color light L1 is red light, and the second color light L2 is a mixture of green and blue light. The dichroic mirror 11 outputs the first color light L1 to the reflecting mirror 12 and the second color light L2 to the dichroic mirror 14.

[0015] The dichroic mirror 14 separates the second color light L2 into a third color light L3 and a fourth color light L4. For example, the third color light L3 is green light, and the fourth color light L4 is blue light. The dichroic mirror 14 outputs the third color light L3 to a relay lens 15 and the fourth color light L4 to a relay lens 16.

[0016] The first color light L1 emitted from the dichroic mirror 11 passes through a reflecting mirror 12 and a relay lens 13 and is incident on the liquid crystal panel 23R. The third color light L3 emitted from the dichroic mirror 14 passes through a relay lens 15 and is incident on the liquid crystal panel 23G. The fourth color light L4 emitted from the dichroic mirror 14 passes through a relay lens 16, a reflecting mirror 17, a relay lens 18, a reflecting mirror 19, and a relay lens 20 and is incident on the liquid crystal panel 23B.

[0017] The liquid crystal panels 23R, 23G, and 23B are each a liquid crystal panel for displaying an image. The liquid crystal panel 23R is disposed on the optical path of the first colored light L1. The liquid crystal panel 23G is disposed on the optical path of the third colored light L3. The liquid crystal panel 23B is disposed on the optical path of the fourth colored light L4. Hereinafter, when it is not necessary to distinguish between the liquid crystal panels 23R, 23G, and 23B, these three liquid crystal panels 23R, 23G, and 23B may be collectively referred to as the liquid crystal panel 23.

[0018] , For example, the liquid crystal panel 23 in this embodiment is an active drive type liquid crystal panel provided with a TFT (Thin Film Transistor) as a pixel switching element for each pixel. Furthermore, for example, the liquid crystal panel 23 is a VA (Vertical Alignment) type liquid crystal panel. The liquid crystal panel 23 functions as a light modulation device in the projector 1. The liquid crystal panel 23R modulates the first red color light L1. The liquid crystal panel 23G modulates the third green color light L3. The liquid crystal panel 23B modulates the fourth blue color light L4. Although not shown in FIG. 1, the transmittance of the pixels of each of the liquid crystal panels 23R, 23G, and 23B is controlled by the processor 100.

[0019] The dichroic prism 21 generates image light L5 representing a color image by mixing the first color light L1 modulated by the liquid crystal panel 23R, the third color light L3 modulated by the liquid crystal panel 23G, and the fourth color light L4 modulated by the liquid crystal panel 23B. The dichroic prism 21 outputs the image light L5 to the projection optical system 22. The projection optical system 22 enlarges and projects the image light L5 onto the projection screen SC. A color image is displayed on the projection screen SC by projecting the image light L5 onto the projection screen SC.

[0020] Within the housing of the projector 1, the dichroic mirrors 11 and 14, the reflecting mirrors 12, 17 and 19, the relay lenses 13, 15, 16, 18 and 20, the dichroic prism 21, the projection optical system 22, and the liquid crystal panels 23R, 23G and 23B are housed inside a resin case 110, for example. The case 110 is configured so that light other than the white light L0 emitted from the light source device 10 does not enter the liquid crystal panel 23.

[0021] The first communication circuit 40 is a communication circuit that controls wired communication between the processor 100 and an external device. Wired communication is an example of first communication. The second communication circuit 50 is a communication circuit that controls wireless communication between the processor 100 and an external device, and generates a larger amount of heat when driven than the first communication circuit 40. Wireless communication is an example of second communication.

[0022] The temperature adjustment system 60 is a system for adjusting the temperature of the second communication circuit 50. The temperature adjustment system 60 includes an airflow applying device 61, an air volume sensor 62, and a temperature sensor 63.

[0023] The airflow generating device 61 is a device that generates an airflow to the second communication circuit 50 based on an airflow command value instructed by the processor 100. For example, the airflow generating device 61 is a cooling fan or a diaphragm pump. The airflow sensor 62 detects the airflow of the airflow generating device 61 and outputs a signal indicating the detection result to the processor 100. For example, the airflow sensor 62 is a pressure sensor. The temperature sensor 63 detects the temperature of the second communication circuit 50 and outputs a signal indicating the detection result to the processor 100. For example, the temperature sensor 63 is a thermistor.

[0024] The first sensor 70 detects the state of the temperature adjustment system 60 and outputs a signal indicating the detection result to the processor 100. The first sensor 70 may be a sensor configured in hardware or software. For example, the first sensor 70 detects the state of the temperature sensor 63. Furthermore, the air volume sensor 62 detects the air volume of the airflow applying device 61 as a state of the temperature adjustment system 60, and therefore can be said to be included in the first sensor 70.

[0025] The second sensor 80 detects the state of the optical system 30 and outputs a signal indicating the detection result to the processor 100. The second sensor 80 may be a sensor configured by hardware or a sensor configured by software.

[0026] The storage device 90 includes a nonvolatile memory that stores programs and various setting data required for the processor 100 to execute various processes, and a volatile memory that is used as a temporary storage destination for data when the processor 100 executes various processes. For example, the nonvolatile memory is an EEPROM (Electrically Erasable Programmable Read-Only Memory) or a flash memory. For example, the volatile memory is a RAM (Random Access Memory).

[0027] The processor 100 is an arithmetic processing device that controls the overall operation of the projector 1 in accordance with a program stored in the storage device 90. As an example, the processor 100 is configured with one or more processors such as a CPU (Central Processing Unit). Some or all of the functions of the processor 100 may be configured with circuits such as a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). The processor 100 executes various processes in parallel or sequentially. The processor 100 controls the supply of power to the first communication circuit 40 and the second communication circuit 50, as will be described in detail later.

[0028] 2 is a flowchart showing each process executed by the processor 100. The processor 100 executes a program stored in the storage device 90 to execute each process shown in FIG.

[0029] 2, the processor 100 acquires the detection results of the first sensor 70 and the second sensor 80 (step S1). That is, in step S1, the processor 100 acquires the detection result of the state of the temperature adjustment system 60 from the first sensor 70, and acquires the detection result of the state of the optical system 30 from the second sensor 80.

[0030] When the processor 100 determines that the temperature adjustment system 60 is not operating normally based on the detection results of the first sensor 70, it executes a first mode in which power is supplied to the first communication circuit 40 but not to the second communication circuit 50 (step S7).

[0031] For example, the processor 100 determines that the temperature adjustment system 60 is not operating normally based on the detection result of the first sensor 70, and determines that the optical system 30 is operating normally based on the detection result of the second sensor 80 (step S3). When determining that the temperature adjustment system 60 is not operating normally, the processor 100 determines that the temperature adjustment system 60 is not operating normally if it determines that at least one of the following has occurred: a high temperature abnormality inside the projector 1, a high temperature abnormality in the second communication circuit 50, an abnormality in the airflow applying device 61, an abnormality in the temperature sensor 63, or an abnormality of a decrease in the air volume of the airflow applying device 61. Note that if the electronic device is not a display device such as the projector 1, step S3 may be a step that only executes determining that the temperature adjustment system 60 is not operating normally based on the detection result of the first sensor 70.

[0032] When the processor 100 determines that the temperature adjustment system 60 is not operating normally based on the detection result of the first sensor 70 and determines that the optical system 30 is operating normally based on the detection result of the second sensor 80, it executes the first mode described above (step S7).

[0033] For example, the processor 100 determines that a serious abnormality has occurred in the optical system 30 based on the detection result of the second sensor 80 (step S4). The processor 100 determines that a serious abnormality has occurred in the optical system 30 when it determines that at least one of a power supply voltage abnormality in the light source device 10, a rotation abnormality in the wheel motor 34, and a communication abnormality between the laser drive device 32 and the processor 100 has occurred.

[0034] When the processor 100 determines that a serious abnormality has occurred in the optical system 30 based on the detection result of the second sensor 80, the processor 100 executes the first mode described above (step S7).

[0035] For example, the processor 100 determines that the temperature adjustment system 60 is operating normally based on the detection result of the first sensor 70, and determines that the optical system 30 is operating normally based on the detection result of the second sensor 80 (step S5). If the electronic device is not the projector 1, the processor 100 may only determine that the temperature adjustment system 60 is operating normally based on the detection result of the first sensor 70 in step S5. If the processor 100 determines that the temperature adjustment system 60 is operating normally based on the detection result of the first sensor 70, it executes the second mode in which power is supplied to both the first communication circuit 40 and the second communication circuit 50 (step S8).

[0036] For example, the processor 100 determines that the temperature adjustment system 60 is operating normally based on the detection result of the first sensor 70, and determines that a minor abnormality has occurred in the optical system 30 based on the detection result of the second sensor 80 (step S6). The processor 100 determines that a minor abnormality has occurred in the optical system 30 when it determines that an abnormality other than a power supply voltage abnormality in the light source device 10, a rotation abnormality in the wheel motor 34, or a communication abnormality between the laser drive device 32 and the processor 100 has occurred. Note that if the electronic device is not the projector 1, the processor 100 may execute only the step of determining that the temperature adjustment system 60 is operating normally based on the detection result of the first sensor 70 in step S6. Step S6 in this case is the same as step S5 when the electronic device is not the projector 1, and therefore step S6 may be omitted when the electronic device is not the projector 1.

[0037] When the processor 100 determines that a minor abnormality has occurred in the optical system 30 based on the detection result of the second sensor 80, the processor 100 executes the second mode (step S8).

[0038] (Effects of this embodiment) As described above, projector 1, which is an example of an electronic device, includes a first communication circuit 40 that controls wired communication, a second communication circuit 50 that controls wireless communication and generates a larger amount of heat when driven than the first communication circuit 40, a processor 100 that controls the supply of power to first communication circuit 40 and second communication circuit 50, a temperature adjustment system 60 that adjusts the temperature of second communication circuit 50, and a first sensor 70 that detects the state of temperature adjustment system 60. When processor 100 determines, based on the detection result of first sensor 70, that temperature adjustment system 60 is not operating normally, it executes a first mode in which power is supplied to first communication circuit 40 and power is not supplied to second communication circuit 50. According to the present embodiment as described above, the supply of power to the first communication circuit 40 or the second communication circuit 50 can be controlled based on the detection results of the first sensor 70, so that the standby state (state in which power is supplied) can be set to a state in which the appropriate communication circuit operates depending on the state of the temperature adjustment system 60.

[0039] In this embodiment, the temperature adjustment system 60 includes an airflow applying device 61 that applies an airflow to the second communication circuit 50 , and the first sensor 70 detects the state of the airflow applying device 61 . According to the present embodiment as described above, the processor 100 can execute the first mode depending on the state of the airflow providing device 61. This allows a state in which an appropriate communication circuit operates depending on the state of the airflow providing device 61 to be the standby state.

[0040] In this embodiment, the temperature adjustment system 60 includes an airflow providing device 61 that provides airflow to the second communication circuit 50 and an airflow sensor 62 that detects the airflow of the airflow providing device 61, and the first sensor 70 is the airflow sensor 62. According to the present embodiment as described above, the processor 100 can execute the first mode in accordance with the detection result of the air volume sensor 62. This allows the standby state to be a state in which an appropriate communication circuit operates in accordance with the detection result of the air volume sensor 62.

[0041] In this embodiment, the temperature adjustment system 60 includes a temperature sensor 63 that detects the temperature of the second communication circuit 50 , and the first sensor 70 detects the state of the temperature sensor 63 . According to the present embodiment as described above, the processor 100 can execute the first mode in accordance with the state of the temperature sensor 63. This allows the state in which an appropriate communication circuit operates to be the standby state in accordance with the state of the temperature sensor 63.

[0042] In this embodiment, when the processor 100 determines that the temperature adjustment system 60 is operating normally based on the detection results of the first sensor 70, it executes a second mode in which power is supplied to both the first communication circuit 40 and the second communication circuit 50. According to the present embodiment described above, when the temperature adjustment system 60 is operating normally, the processor 100 executes the second mode in which power is supplied to both the first communication circuit 40 and the second communication circuit 50, thereby improving the freedom of communication.

[0043] A projector 1, which is an example of a display device, includes an optical system 30 for displaying an image, a first communication circuit 40 for controlling wired communication, a second communication circuit 50 for controlling wireless communication and generating a larger amount of heat when driven than the first communication circuit 40, a processor 100 for controlling the supply of power to the first communication circuit 40 and the second communication circuit 50, a temperature adjustment system 60 for adjusting the temperature of the second communication circuit 50, and a first sensor 70 for detecting the state of the temperature adjustment system 60. When the processor 100 determines, based on the detection result of the first sensor 70, that the temperature adjustment system 60 is not operating normally, the processor 100 executes a first mode in which power is supplied to the first communication circuit 40 and power is not supplied to the second communication circuit 50. According to the present embodiment as described above, the supply of power to the first communication circuit 40 or the second communication circuit 50 can be controlled based on the detection results of the first sensor 70, so that the standby state can be set to a state in which the appropriate communication circuit operates depending on the state of the temperature adjustment system 60.

[0044] The above projector 1 further includes a second sensor 80 that detects the state of the optical system 30, and the processor 100 executes the first mode when it determines that the temperature adjustment system 60 is not operating normally based on the detection result of the first sensor 70 and determines that the optical system 30 is operating normally based on the detection result of the second sensor 80. According to the present embodiment as described above, even if the optical system 30 is operating normally, i.e., an image can be displayed normally, if the temperature adjustment system 60 is not operating normally, the first mode can be executed, thereby preventing malfunctions due to overheating of the second communication circuit 50.

[0045] The above describes embodiments of the present disclosure, but the technical scope of the present disclosure is not limited to the above embodiments, and various modifications can be made within the scope that does not deviate from the spirit of the present disclosure.

[0046] In the above embodiment, a projector is illustrated as an example of the electronic device and display device of the present disclosure, but the electronic device and display device of the present disclosure are not limited to a projector. For example, the electronic device of the present disclosure may be a relay device that controls network communication between a projector and a personal computer. That is, the electronic device does not have to be a device that includes an optical system such as the projector 1. Furthermore, the display device of the present disclosure may be a liquid crystal television or a liquid crystal display that includes a liquid crystal panel as an optical system for displaying images. The display device of the present disclosure may be a display device that includes an OLED (Organic Light Emitting Diode) panel as an optical system for displaying images.

[0047] In the above embodiment, the second communication circuit controlling wireless communication is exemplified as the second communication, but the second communication circuit of the present disclosure is not limited to this. For example, the second communication circuit that generates a larger amount of heat than the first communication circuit when driven may be a High-Definition Multimedia Interface (HDMI) communication circuit that controls HDMI communication.

[0048] Summary of the Disclosure A summary of this disclosure is provided below.

[0049] (Supplementary Note 1) An electronic device comprising: a first communication circuit that controls first communication; a second communication circuit that controls second communication and generates a heat output greater than that of the first communication circuit when driven; one or more processors that execute control of the supply of power to the first communication circuit and the second communication circuit; a temperature adjustment system that adjusts the temperature of the second communication circuit; and a first sensor that detects the state of the temperature adjustment system, wherein the one or more processors execute a first mode in which power is supplied to the first communication circuit and power is not supplied to the second communication circuit when it is determined that the temperature adjustment system is not operating normally based on the detection result of the first sensor.

[0050] According to the electronic device described in Appendix 1, the supply of power to the first communication circuit or the second communication circuit can be controlled based on the detection result of the first sensor, so that the state in which the appropriate communication circuit operates depending on the state of the temperature adjustment system can be set to a standby state (a state in which power is supplied).

[0051] (Supplementary Note 2) The electronic device described in Supplementary Note 1, wherein the temperature adjustment system includes an airflow applying device that applies airflow to the second communication circuit, and the first sensor detects a state of the airflow applying device.

[0052] According to the electronic device described in Supplementary Note 2, the one or more processors can execute the first mode depending on the state of the airflow providing device, thereby making it possible to set a state in which an appropriate communication circuit operates depending on the state of the airflow providing device as a standby state.

[0053] (Appendix 3) The electronic device described in Appendix 1 or Appendix 2, wherein the temperature adjustment system includes an airflow providing device that provides airflow to the second communication circuit and an airflow sensor that detects the airflow of the airflow providing device, and the first sensor is the airflow sensor.

[0054] According to the electronic device described in Supplementary Note 3, the one or more processors can execute the first mode in response to the detection result of the airflow sensor. This allows the standby state to be a state in which an appropriate communication circuit operates in response to the detection result of the airflow sensor.

[0055] (Appendix 4) The electronic device described in any one of Appendices 1 to 3, wherein the temperature adjustment system includes a temperature sensor that detects the temperature of the second communication circuit, and the first sensor detects the state of the temperature sensor.

[0056] According to the electronic device described in Supplementary Note 4, the one or more processors can execute the first mode depending on the state of the temperature sensor. This allows a state in which an appropriate communication circuit operates depending on the state of the temperature sensor to be the standby state.

[0057] (Appendix 5) An electronic device described in any one of Appendices 1 to 4, wherein the one or more processors execute a second mode in which power is supplied to both the first communication circuit and the second communication circuit when it is determined that the temperature adjustment system is operating normally based on the detection result of the first sensor.

[0058] According to the electronic device described in Appendix 5, when the temperature adjustment system is operating normally, one or more processors execute a second mode in which power is supplied to both the first communication circuit and the second communication circuit, thereby improving the freedom of communication.

[0059] (Appendix 6) A display device comprising: an optical system for displaying an image; a first communication circuit for controlling first communication; a second communication circuit for controlling second communication and having a heat generation amount greater than that of the first communication circuit when driven; one or more processors for controlling the supply of power to the first communication circuit and the second communication circuit; a temperature adjustment system for adjusting the temperature of the second communication circuit; and a first sensor for detecting the state of the temperature adjustment system, wherein the one or more processors execute a first mode in which the power is supplied to the first communication circuit and the power is not supplied to the second communication circuit when it is determined based on the detection result of the first sensor that the temperature adjustment system is not operating normally.

[0060] According to the display device described in Appendix 6, the supply of power to the first communication circuit or the second communication circuit can be controlled based on the detection result of the first sensor, so that the standby state can be set to a state in which the appropriate communication circuit operates depending on the state of the temperature adjustment system.

[0061] (Appendix 7) A display device as described in Appendix 6, further comprising a second sensor that detects the state of the optical system, and wherein the one or more processors execute the first mode when they determine that the temperature adjustment system is not operating normally based on the detection result of the first sensor and determine that the optical system is operating normally based on the detection result of the second sensor.

[0062] According to the display device described in Appendix 7, even if the optical system is operating normally, i.e., the image can be displayed normally, the first mode can be executed if the temperature adjustment system is not operating normally, thereby preventing malfunctions due to overheating of the second communication circuit. [Explanation of symbols]

[0063] 1...Projector, 30...Optical system, 40...First communication circuit, 50...Second communication circuit, 60...Temperature adjustment system, 61...Airflow application device, 62...Air volume sensor, 63...Temperature sensor, 70...First sensor, 80...Second sensor, 90...Storage device, 100...Processor

Claims

1. a first communication circuit that controls the first communication; a second communication circuit that controls second communication and generates a larger amount of heat when driven than the first communication circuit; one or more processors that execute power supply control to the first communication circuit and the second communication circuit; a temperature regulation system for regulating the temperature of the second communication circuit; a first sensor for detecting a state of the temperature adjustment system; Equipped with the one or more processors: when it is determined that the temperature adjustment system is not operating normally based on the detection result of the first sensor, a first mode is executed in which the power is supplied to the first communication circuit and the power is not supplied to the second communication circuit. electronic equipment.

2. the temperature adjustment system includes an airflow applying device that applies an airflow to the second communication circuit, the first sensor detects a state of the airflow applying device; The electronic device according to claim 1 .

3. the temperature adjustment system includes an airflow applying device that applies airflow to the second communication circuit, and an airflow sensor that detects an airflow of the airflow applying device; The first sensor is the air volume sensor. The electronic device according to claim 1 .

4. the temperature adjustment system includes a temperature sensor that detects the temperature of the second communication circuit; The first sensor detects the state of the temperature sensor. The electronic device according to claim 1 .

5. the one or more processors: when it is determined that the temperature adjustment system is operating normally based on the detection result of the first sensor, a second mode is executed in which the power is supplied to both the first communication circuit and the second communication circuit. The electronic device according to claim 1 .

6. an optical system for displaying an image; a first communication circuit that controls the first communication; a second communication circuit that controls second communication and generates a larger amount of heat when driven than the first communication circuit; one or more processors that execute power supply control to the first communication circuit and the second communication circuit; a temperature adjustment system that adjusts the temperature of the second communication circuit; a first sensor for detecting a state of the temperature adjustment system; Equipped with the one or more processors: when it is determined that the temperature adjustment system is not operating normally based on the detection result of the first sensor, a first mode is executed in which the power is supplied to the first communication circuit and the power is not supplied to the second communication circuit. Display device.

7. Further, a second sensor is provided to detect a state of the optical system. the one or more processors: executing the first mode when it is determined that the temperature adjustment system is not operating normally based on the detection result of the first sensor and when it is determined that the optical system is operating normally based on the detection result of the second sensor; The display device according to claim 6.

Images