Electronic device and partition temperature control method

Abstract

The present disclosure provides an electronic device and a partition temperature control method. The electronic device includes a substrate, a plurality of light emitting units, a first driving unit, a second driving unit, a first temperature sensor, a second temperature sensor, and a control unit. The plurality of light emitting units are disposed on the substrate. The first driving unit and the second driving unit are disposed on the substrate and are respectively used to drive at least one of the plurality of light emitting units. The first temperature sensor and the second temperature sensor are respectively disposed adjacent to the first driving unit and the second driving unit. The control unit is coupled to the first temperature sensor and the second temperature sensor and is used to receive sensing results of the first temperature sensor and the second temperature sensor to adjust the first driving unit and the second driving unit according to the sensing results. The electronic device and the partition temperature control method of the present disclosure can realize effective temperature control function.

Description

Technical Field

[0001] This disclosure relates to an apparatus, and more particularly to an electronic device and a method for zoned temperature control. Background Technology

[0002] Typical backlight panels may experience overheating of the driving unit or light-emitting unit. However, traditional temperature sensors, or a limited number of temperature sensors, cannot detect the temperature of the driving unit. Furthermore, as the panel size increases, traditional temperature sensing functions are no longer sufficient to effectively determine temperature changes in different areas of the panel for effective temperature control. Summary of the Invention

[0003] This disclosure relates to an electronic device and a zoned temperature control method that enables effective temperature control.

[0004] According to embodiments of this disclosure, the electronic device includes a substrate, a plurality of light-emitting units, a first driving unit, a second driving unit, a first temperature sensor, a second temperature sensor, and a control unit. The substrate includes multiple regions. The plurality of light-emitting units are disposed on the substrate. The first driving unit and the second driving unit are disposed on the substrate and are respectively used to drive at least one of the plurality of light-emitting units. The first temperature sensor and the second temperature sensor are respectively disposed adjacent to the first driving unit and the second driving unit. The control unit is coupled to the first temperature sensor and the second temperature sensor. The control unit is used to receive the sensing results from the first temperature sensor and the second temperature sensor, and to adjust the first driving unit and the second driving unit based on the sensing results.

[0005] According to the embodiments disclosed herein, the zoned temperature control method disclosed herein includes the following steps: detecting the temperature of multiple areas of an electronic device; determining whether the temperature of at least one of the multiple areas is greater than a temperature threshold; when the temperature of at least one of the multiple areas is greater than the temperature threshold, determining whether at least one of the multiple areas is a safety information area; when at least one of the multiple areas is a safety information area, activating the heat dissipation device corresponding to at least one of the multiple areas; and when at least one of the multiple areas is a non-safety information area, reducing the brightness of at least one of the multiple areas.

[0006] Based on the above, the electronic device and the zoned temperature control method disclosed herein can effectively detect the temperature of multiple areas of the electronic device, and can effectively cool down areas with excessively high temperatures by reducing brightness or by turning on the heat dissipation device.

[0007] To make the foregoing more understandable, several embodiments, accompanied by accompanying drawings, are described in detail below. Attached Figure Description

[0008] Figure 1This is a schematic diagram of an electronic device according to an embodiment of the present disclosure;

[0009] Figure 2 This is a flowchart of the temperature control method according to an embodiment of the present disclosure;

[0010] Figure 3 This is a schematic diagram of the temperature control range of an embodiment disclosed herein;

[0011] Figure 4 This is a schematic diagram of the information area of ​​an embodiment disclosed herein;

[0012] Figure 5 This is a flowchart of the setting information area in an embodiment of this disclosure;

[0013] Figure 6 This is a flowchart of the zoned temperature control method according to an embodiment of the present disclosure;

[0014] Figure 7 This is a side view of the substrate of an embodiment of this disclosure;

[0015] Figure 8 This is a circuit diagram of an electronic device according to an embodiment of the present disclosure;

[0016] Figure 9 This is a circuit diagram of an electronic device according to an embodiment of the present disclosure;

[0017] Figure 10 This is a circuit diagram of the driving unit of an embodiment disclosed herein;

[0018] Figure 11 This is a circuit diagram of an electronic device according to an embodiment of the present disclosure;

[0019] Figure 12 This is a circuit diagram of an electronic device according to an embodiment of the present disclosure;

[0020] Figure 13 This is a circuit diagram of an electronic device according to an embodiment of the present disclosure;

[0021] Figure 14 This is a circuit diagram of an electronic device according to an embodiment of the present disclosure;

[0022] Figure 15 This is a circuit diagram of an electronic system according to an embodiment of the present disclosure;

[0023] Figure 16 This is a schematic diagram of the partitioned temperature control module of the embodiment disclosed herein.

[0024] Explanation of icon numbers

[0025] 100, 800, 900, 1100, 1300, 1400: Electronic devices;

[0026] 101: Substrate;

[0027] 110_1~110_8, 810_1~810_A, 910_1~910_B, 1110_1~1110_C, 1210_1~1210_D, 1310_1~1310_E, 1410_1~1410_F: Light-emitting units;

[0028] 120_1~120_8: Region;

[0029] 131_1~138_4, 831_1~831_A, 931_1~931_B, 1030, 1131_1~1131_C, 1231_1~1231_D, 1331_1~1331_E, 1431_1~1431_F: Drive units;

[0030] 140~1~140_8, 840_1~840_A, 940_1~940_B, 1040, 1140_1~1140_C, 1240_1~1240_D, 1340_1~1340_E, 140_1~14340_F: Temperature sensors;

[0031] 150, 850, 950, 1150, 1250, 1350, 1450, 1600: Control unit;

[0032] 301, 302, 303: Temperature control zones;

[0033] 400: Display screen;

[0034] 410: Security Information Area;

[0035] 420: Insecure information area;

[0036] 832_1~832_A, 932_1~932_B, 1031, 1160, 1252: Analog-to-digital converters;

[0037] 1032: Detection unit;

[0038] 1033: Current controller;

[0039] 1034: Register;

[0040] 1035: Receiver;

[0041] 1036: Sender;

[0042] 1251, 1351: Analog switchers;

[0043] 1460: Comparator;

[0044] 1500: Electronic systems;

[0045] 1510: Vehicle control unit;

[0046] 1520: Sending interface;

[0047] 1530: Receiving interface;

[0048] 1540: Storage unit;

[0049] 1550: Control unit;

[0050] 1560: Monitor;

[0051] 1570: Backlight module;

[0052] 1610: Image data source;

[0053] 1620: Image pixel path switching module;

[0054] 1630: Data processing module for displaying non-secure areas;

[0055] 1640: Safe zone display data processing module;

[0056] 1650: Local backlight adjustment module;

[0057] 1660: Image data output module;

[0058] 1670: Power control module;

[0059] 1680: Heat dissipation device control module;

[0060] D1: Distance;

[0061] P1~P3: Direction;

[0062] S210~250, S510~S550, S610~S650: Steps;

[0063] VLED: Driving voltage. Detailed Implementation

[0064] Reference will now be made in detail to the exemplary embodiments disclosed herein, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element references are used in the drawings and description to denote the same or similar parts.

[0065] Figure 1 This is a schematic diagram of an electronic device according to an embodiment of this disclosure. Reference Figure 1In this embodiment, the electronic device 100 includes a substrate 101 comprising multiple regions 120_1 to 120_8, multiple light-emitting units 110_1 to 110_M, multiple driving units 131_1 to 138_4, multiple temperature sensors 140_1 to 140_8, and a control unit 150, where M is a positive integer. In one embodiment, the electronic device 100 may further include one or more heat dissipation devices, such as fans. The multiple heat dissipation devices may respectively correspond to the multiple regions 120_1 to 120_8 of the substrate 101. In this embodiment, the electronic device 100 may be implemented as a backlight panel of a display device and may implement local dimming functionality.

[0066] In this embodiment, the control unit 150 is coupled to the driving units 131_1 to 138_4 and the temperature sensors 140_1 to 140_8. The driving units 131_1 to 138_4 are coupled to the light-emitting units 110_1 to 110_M. In this embodiment, the surface of the substrate 101 is parallel to the planes formed by extending along directions P1 and P3, respectively. The surface of the substrate 101 may face direction P2. Directions P1, P2, and P3 are perpendicular to each other. In this embodiment, each of the regions 120_1 to 120_8 includes multiple light-emitting units, multiple driving units, and at least one temperature sensor. Taking region 120_1 of the substrate 101 as an example, region 120_1 includes multiple light-emitting units, driving units 131_1 to 131_4, and temperature sensor 140_1. Similarly, region 120_8 includes multiple light-emitting units, driving units 138_1 to 138_4, and temperature sensor 140_8.

[0067] In this embodiment, the plurality of light-emitting units in region 120_1 can be disposed on the lower surface of substrate 101 (the side facing the opposite direction P2). The driving units 131_1 to 131_4 and the temperature sensor 140_1 in region 120_1 can be disposed on the upper surface of substrate 101 (the side facing direction P2). Similarly, regions 120_2 to 120_8 can also have the same component configuration. In this embodiment, the control unit 150 can be disposed outside substrate 101 or formed on substrate 101, and this disclosure is not limiting.

[0068] In addition, it should be noted that Figure 1 This is merely an example of one embodiment disclosed herein. In one embodiment, the number of regions of substrate 101, the number of light-emitting units, the number of driving units, and the number of temperature sensors are not limited to... Figure 1 As shown. Furthermore, the configuration positions of the light-emitting units 110_1~110_M, the driving units 131_1~138_4, the temperature sensors 140_1~140_8, and the control unit 150 are not limited to... Figure 1 As shown.

[0069] In this embodiment, taking temperature sensors 140_1 and 140_2 as examples, temperature sensors 140_1 and 140_2 are respectively disposed adjacent to driving unit 131_3 and driving unit 132_2. In this embodiment, temperature sensor 140_1 is disposed adjacent to driving unit 131_3. Specifically, as... Figure 1 From a top view, there are no other driving units between driving unit 131_3 and the nearest temperature sensor 140_1. Similarly, the statement that temperature sensor 140_2 is adjacent to driving unit 132_2 means that from a top view, there are no other driving units between driving unit 132_2 and the nearest temperature sensor 140_2. Control unit 150 can receive the sensing results from temperature sensors 140_1 and 140_2 to adjust driving units 131_3 and 132_2 based on the sensing results. Control unit 150 can, for example, adjust the power or driving current of driving units 131_3 and 132_2. In this embodiment, when temperature sensor 140_1 senses that the temperature of driving unit 131_3 is greater than a threshold, the brightness or power of the corresponding light-emitting unit of driving unit 132_2 can be reduced by adjusting the driving current output of driving unit 132_2, thereby reducing the generation of heat sources and achieving the effect of lowering the temperature. Similarly, the control unit 150 can receive the sensing results from temperature sensors 140_1 to 140_8 to adjust the drive units 131_1 to 138_4 based on the sensing results. In this embodiment, the control unit 150 may include a temperature calculation module to calculate the temperature of regions 120_1 to 120_8 or a specific location on the substrate 101.

[0070] In this embodiment, the control unit 150 can control the driving units 131_1 to 138_4 to drive the light-emitting units 110_1 to 110_M. It can also sense the temperature of regions 120_1 to 120_8, or the relative temperature corresponding to the substrate position of a specific driving unit, through temperature sensors 140_1 to 140_8. In this embodiment, the control unit 150 can reduce power or activate the heat dissipation device of the corresponding region through the driving units 131_1 to 138_4.

[0071] Figure 2 This is a flowchart of a temperature control method according to an embodiment of the present disclosure. Figure 3 This is a schematic diagram of the temperature control range according to an embodiment of this disclosure. (See reference) Figure 1 and Figure 2The electronic device 100 can perform the following steps S210 to S260. In step S210, the control unit 150 can turn off the heat dissipation device. In step S220, the control unit 150 can determine whether the temperature is higher than a temperature threshold. In this embodiment, taking region 120_1 as an example, the control unit 150 can sense the temperature of the substrate 101 in region 120_1 through temperature sensor 140_1. Alternatively, the control unit 150 can sense the relative temperature of the substrate 101 at a position adjacent to the driving unit disposed between temperature sensors 140_1 and 140_2 through temperature sensors 140_1 and 140_2. In this embodiment, the control unit 150 can determine whether the temperature of the substrate 101 in region 120_1 or the relative temperature corresponding to a certain driving unit is higher than a temperature threshold. If not, the control unit 150 can re-execute step S210. If yes, in step S230, the control unit 150 can activate the heat dissipation device and wait for a preset time length (e.g., 1 to 300 seconds) to allow the heat dissipation device to dissipate heat.

[0072] In this embodiment, after the heat dissipation device has cooled the air for a period of time (a preset time length), in step S240, the control unit 150 can again determine whether the temperature is higher than the temperature threshold. If not, the control unit 150 can re-execute step S210. If yes, in step S250, the control unit 150 can determine whether the power is higher than a specific ratio. The specific ratio may be, for example, the lower limit of the operating power of the driving unit (e.g., 70%), but this disclosure is not limited thereto. In this embodiment, the control unit 150 can determine whether the power of the driving unit driving the corresponding light-emitting unit in the corresponding area is higher than a specific ratio. If yes, in step S260, the control unit 150 can reduce the power of the corresponding driving unit, and the control unit 150 can then execute steps S230 and S240 to wait for the heat dissipation device to cool the air for a period of time (a preset time length) before determining whether the temperature is higher than the temperature threshold again. If not, the control unit 150 can execute steps S230 and S240 to continue waiting for the heat dissipation device to cool the air for a period of time (a preset time length) before determining whether the temperature is higher than the temperature threshold again.

[0073] In one embodiment, the power reduction can be achieved by adjusting the power of the drive unit in a stepped manner. For example, the control unit 150 can reduce the power by 5% or 10% each time, but this disclosure is not limited to this. In addition, in the aforementioned judgment loop, if the power of the drive unit has been judged to be unable to be reduced multiple times consecutively, the control unit 150 can also determine whether the start-up time of the heat dissipation device exceeds the operation time threshold (indicating that the cooling effect cannot be achieved by means of heat dissipation device and power reduction), and decide to directly shut down the electronic device 100.

[0074] In one embodiment, due to different design, the power reduction step can take precedence over activating the heat dissipation device. For example, when step S220 determines that the temperature is higher than a threshold, step S250 can be executed first. The control unit 150 can determine whether the power of the driving unit driving the corresponding light-emitting unit in the corresponding area is higher than a specific ratio. If yes, in step S260, the control unit 150 can first reduce the power of driving the corresponding driving unit, and after waiting for a period of time (preset time length), execute step S240 to determine whether the temperature is higher than the temperature threshold again. If no, the control unit 150 can re-execute step S210. If yes, steps S250, S260 and S240 are executed repeatedly in sequence until step S250 determines that the power of the driving unit driving the corresponding light-emitting unit is no longer higher than a specific ratio. Then, step S230 is executed to activate the heat dissipation device and wait for a default time length, and then step S240 is executed to determine whether the temperature is higher than the temperature threshold again. If no, the control unit 150 can re-execute step S210. If yes, steps S230 and S240 are re-executed. In this cycle, the control unit 150 may also determine whether the start-up time of the heat dissipation device exceeds the operation time threshold (indicating that the cooling effect cannot be achieved by means of heat dissipation device and power reduction), and decide to directly shut down the electronic device 100.

[0075] For example, pairing reference Figure 3 The temperature threshold can be, for example, 60 degrees Celsius (°C), and a specific percentage can be, for example, 70%, but this disclosure is not limited thereto. In this regard, when the temperature sensed by the temperature sensor by the control unit 150 is below 60 degrees Celsius, corresponding to temperature control range 301, the control unit 150 can shut down the corresponding heat dissipation device without reducing the brightness of the light-emitting unit. When the temperature sensed by the temperature sensor by the control unit 150 is above 60 degrees Celsius and the power is less than 70%, corresponding to temperature control range 302, the control unit 150 can activate the corresponding heat dissipation device for heat dissipation without reducing the brightness of the light-emitting unit. When the temperature sensed by the temperature sensor by the control unit 150 is above 60 degrees Celsius and the power is above 70%, corresponding to temperature control range 303, the control unit 150 can activate the corresponding heat dissipation device and reduce the brightness of the light-emitting unit to accelerate the cooling rate.

[0076] Figure 4 This is a schematic diagram of the information area of ​​an embodiment of this disclosure. Reference Figure 4 , Figure 1 The electronic device 100 may also include a display panel, and display such as Figure 4The display screen 400 is shown. In this embodiment, the electronic device 100 may be implemented as, for example, an in-vehicle display, but this disclosure is not limited thereto. In this embodiment, the display screen 400 may have a safety information area 410 and a non-safety information area 420. The display screen 400 may be parallel to the planes formed by extending along directions P1 and P3, respectively. The display screen 400 may display screen content facing direction P2. In this embodiment, the electronic device 400 may display relevant safety information, such as vehicle speed information or navigation information, or related dashboard information or warning symbols, in the display screen of the safety information area 410. The electronic device 400 may display information with a lower impact on driving safety, such as multimedia information or passenger display information, in the display screen of the non-safety information area 420.

[0077] Figure 5 This is a flowchart of the setting information area in an embodiment of this disclosure. (See also:) Figure 4 as well as Figure 5 In this embodiment, the electronic device 400 can execute the following steps S510 to S550 to set an information area. In step S510, the electronic device 400 can receive a user-input instruction to set the security information area 410. In step S520, the electronic device 400 can set the position and range of the security information area 410 according to the instruction. In step S530, the electronic device 400 can determine whether the setting has been stored. If not, in step S540, the electronic device 400 can store the setting. If yes, in step S550, the electronic device 400 can end the setting process. Therefore, the user can selectively set the position and range of the security information area 410 according to their needs.

[0078] Figure 6 This is a flowchart of a zoned temperature control method according to an embodiment of this disclosure. (See reference...) Figure 1 and Figure 6 The electronic device 100 can execute the following steps S610 to S650 to achieve zoned temperature control. In step S610, the control unit 150 can detect the temperature of multiple regions 120_1 to 120_8 of the electronic device 100. The control unit 150 can detect the temperature of regions 120_1 to 120_8 through temperature sensors 140_1 to 140_8. In step S620, the control unit 150 can determine whether the temperature of at least one of the multiple regions 120_1 to 120_8 is greater than a temperature threshold. If not, the control unit 150 can re-execute step S610 after a preset time length to re-detect. If yes, in step S630, the control unit 150 can determine whether at least one of the multiple regions 120_1 to 120_8 corresponds to a safety information region. The control unit 150 can determine whether the region on the substrate 100 with a temperature greater than a temperature threshold corresponds to... Figure 4The safety information area 410 is shown. If yes, in step S640, the control unit 150 may activate the heat dissipation device corresponding to at least one of the plurality of areas 120_1 to 120_8, and the control unit 150 may maintain the brightness of the light-emitting unit in this area. If not, in step S650, the control unit 150 may reduce the brightness of the light-emitting unit in at least one of the plurality of areas 120_1 to 120_8. In one embodiment, before reducing the brightness of the light-emitting unit in at least one of the plurality of areas 120_1 to 120_8, the heat dissipation device may be activated to dissipate heat, and a preset time length (e.g., 1 to 300 seconds) may be waited for the heat dissipation device to dissipate heat. If the heat dissipation cannot be improved, the brightness of the light-emitting unit may be reduced.

[0079] In one embodiment, the control unit 150 may further determine whether the brightness of at least one of the plurality of regions 120_1 to 120_8 has reached a brightness threshold. When the brightness of at least one of the plurality of regions 120_1 to 120_8 has reached the brightness threshold, the control unit 150 may activate the heat dissipation device to dissipate heat. In other words, when the brightness can no longer be reduced, the control unit 150 may further activate the heat dissipation device to dissipate heat.

[0080] In another embodiment, in the aforementioned means of activating the heat dissipation device for heat dissipation, the control unit 150 can also adjust the heat dissipation speed of the heat dissipation device for the safety information area and the non-safety information area. For example, to prevent damage to the light-emitting unit in the safety information area, which could affect driving safety, the control unit 150 can control the fan corresponding to the safety information area to operate at a higher speed. Conversely, the control unit 150 can control the fan corresponding to the non-safety information area to operate at a lower speed. Therefore, power consumption can be saved, and the backlight function of the safety information area can be effectively protected.

[0081] Figure 7 This is a side view of the substrate according to an embodiment of this disclosure. (See reference...) Figure 1 as well as Figure 7 In this embodiment, a partial side view of the substrate 101 can be shown as follows: Figure 7As shown, in this embodiment, driving units 131_3, 131_4, 132_1, and 132_2 can be disposed between temperature sensors 140_1 and 140_2, and driving units 131_3, 131_4, 132_1, and 132_2 are equidistantly arranged on substrate 101 along direction P1. Any two adjacent temperature sensors 140_1 and 140_2, and driving units 131_3, 131_4, 132_1, and 132_2 can be separated by a distance D1. In this embodiment, the detection results of temperature sensors 140_1 and 140_2 can be used to calculate the relative temperature relative to the relative position of one of the driving units 131_3, 131_4, 132_1, and 132_2, but this disclosure is not limited to this. In one embodiment, drive units 131_3, 131_4, 132_1, and 132_2 can be configured along direction P2, and temperature sensors 140_1 and 140_2 can be configured along direction P1. The detection results from temperature sensors 140_1 and 140_2 can be used to calculate the relative temperature relative to the relative position of one of the drive units 131_3, 131_4, 132_1, and 132_2. In one embodiment, multiple temperature sensors can also be provided in the same area. For example, another temperature sensor can be provided adjacent to drive unit 131_3.

[0082] For example, for Figure 7 For the position on substrate 101 relative to drive unit 131_3, control unit 150 can multiply the temperature sensing result of temperature sensor 140_1 by 4 / 5 and add the result of temperature sensor 140_2 multiplied by 1 / 5 to obtain the relative temperature on substrate 101 relative to drive unit 131_3. Similarly, for the position on substrate 101 relative to drive unit 132_2, control unit 150 can multiply the temperature sensing result of temperature sensor 140_1 by 1 / 5 and add the result of temperature sensor 140_2 multiplied by 4 / 5 to obtain the relative temperature on substrate 101 relative to drive unit 132_2.

[0083] Therefore, the control unit 150 can effectively estimate the relative temperature of the substrate 101 with respect to the positions of the drive units 131_3, 131_4, 132_1, and 132_2 using temperature sensors 140_1 and 140_2, thereby effectively reducing the power of the drive unit corresponding to the higher temperature position or activating the corresponding heat dissipation device. However, the temperature estimation method disclosed herein is not limited to the above-described two-dimensional relationship. In one embodiment, the control unit 150 can also estimate the temperature at multiple locations on the plane of the substrate 101, for example, using three or more temperature sensors.

[0084] Figure 8 This is a circuit diagram of an electronic device according to an embodiment of this disclosure. (See reference...) Figure 8 The electronic devices of some embodiments disclosed herein can realize, for example... Figure 8 The circuit architecture is as follows. In this embodiment, the electronic device 800 includes a control unit 850, multiple light-emitting units 810_1 to 810_A, and multiple driving units 831_1 to 831_A, where A is a positive integer. The driving units 831_1 to 831_A include multiple analog-to-digital converters (ADCs) 832_1 to 832_A and multiple temperature sensors 840_1 to 840_A. The ADCs 832_1 to 832_A are each coupled to a corresponding temperature sensor 840_1 to 840_A. The ADCs 832_1 to 832_A and the temperature sensors 840_1 to 840_A are integrated into the driving units 831_1 to 831_A. Each of the driving units 831_1 to 831_A includes one ADC and one temperature sensor. The control unit 850 is coupled to the driving units 831_1 to 831_A. The driving units 831_1 to 831_A are connected in a cascade manner. Each of the driving units 831_1 to 831_A is coupled to different parts of the light-emitting units 810_1 to 810_A.

[0085] In this embodiment, the light-emitting units 810_1 to 810_A can be multiple light-emitting diodes (LEDs), and one end of each light-emitting unit 810_1 to 810_A is coupled to a driving voltage VLED. The other ends of the light-emitting units 810_1 to 810_A are respectively coupled to driving units 831_1 to 831_A. The driving units 831_1 to 831_A are used to provide driving current and control the brightness of the light-emitting units 810_1 to 810_A through the driving current. In this embodiment, the driving units 831_1 to 831_A can be disposed in different areas of the substrate (e.g., ...). Figure 1 As shown, the brightness of different areas is controlled separately. Furthermore, the driving units 831_1 to 831_A can sense the temperature of different areas through temperature sensors 840_1 to 840_A, and obtain the temperature sensing data through analog-to-digital converters 832_1 to 832_A. Each of the driving units 831_1 to 831_A can sequentially transmit the temperature sensing data to the next-level driving unit, and finally to the control unit 850.

[0086] In this embodiment, temperature sensors 840_1 to 840_A may, for example, include thermistors with a negative temperature coefficient (NTC), but this disclosure is not limited thereto. In this embodiment, control unit 850 may control drive units 831_1 to 831_A based on the temperature sensing data corresponding to different regions, so as to adjust the brightness of light-emitting units 810_1 to 810_A or activate heat dissipation devices corresponding to different regions.

[0087] Figure 9 This is a circuit diagram of an electronic device according to an embodiment of this disclosure. (See reference...) Figure 9 The electronic devices of some embodiments disclosed herein can realize, for example... Figure 9 The circuit architecture is as follows. In this embodiment, the electronic device 900 includes a control unit 950, multiple light-emitting units 910_1 to 910_B, multiple driving units 931_1 to 931_B, and multiple temperature sensors 940_1 to 940_B, where B is a positive integer. The driving units 931_1 to 931_B include multiple analog-to-digital converters 932_1 to 932_B. Each analog-to-digital converter 932_1 to 932_B is coupled to a corresponding temperature sensor 940_1 to 940_B. The analog-to-digital converters 932_1 to 932_B can be integrated into the driving units 931_1 to 931_B. Each driving unit 931_1 to 931_B includes one analog-to-digital converter. The control unit 950 is coupled to the driving units 931_1 to 931_B. The driving units 931_1 to 931_B are connected in a cascaded manner. Each of the driving units 931_1 to 931_B is coupled to different parts of the light-emitting units 910_1 to 910_B.

[0088] In this embodiment, the light-emitting units 910_1 to 910_B can be multiple light-emitting diodes (LEDs), and one end of each light-emitting unit 910_1 to 910_B is coupled to the driving voltage VLED. The other ends of each light-emitting unit 910_1 to 910_B are respectively coupled to the driving units 931_1 to 931_B. The driving units 931_1 to 931_B are used to provide driving current and control the brightness of the light-emitting units 910_1 to 910_B through the driving current. In this embodiment, the driving units 931_1 to 931_B and the temperature sensors 940_1 to 940_B can be disposed in different areas of the substrate (e.g., ...). Figure 1(As shown), to control the brightness of different areas separately. Furthermore, the drive units 931_1 to 931_B can sense the temperature of different areas through temperature sensors 940_1 to 940_B, and obtain the temperature sensing data through analog-to-digital converters 932_1 to 932_B. Each drive unit 931_1 to 931_B can sequentially transmit the temperature sensing data to the next-level drive unit, and finally to the control unit 950.

[0089] In this embodiment, temperature sensors 940_1 to 940_B may, for example, include thermistors with negative temperature coefficients, but this disclosure is not limited thereto. In this embodiment, control unit 950 can control drive units 931_1 to 931_B according to the temperature sensing data corresponding to different regions, so as to adjust the brightness of light-emitting units 910_1 to 910_B or turn on heat dissipation devices corresponding to different regions.

[0090] Figure 10 This is a circuit diagram of the driving unit according to an embodiment of this disclosure. (See reference...) Figure 10 The driving units of some embodiments disclosed herein can implement, for example... Figure 10 The driving unit 1030 is shown. In this embodiment, the driving unit 1030 includes a temperature sensor 1040, an analog-to-digital converter 1031, a detection unit 1032, a current controller 1033, a receiver 1035, and a transmitter 1036. The current controller 1033 includes a register 1034. The temperature sensor 1040 is coupled to the analog-to-digital converter 1031 and the current controller 1033. The analog-to-digital converter 1031 is also coupled to the detection unit 1032. The detection unit 1032 is also coupled to the register 1034. The current controller 1033 is also coupled to the receiver 1035 and the transmitter 1036.

[0091] In this embodiment, the temperature sensor 1040 may be a thermal shutdown protection function circuit built into the drive unit 1030, and is used to sense temperature and output an analog temperature sensing signal to the analog-to-digital converter 1031. In this embodiment, the detection unit 1032 may be a junction thermal detection report circuit built into the drive unit 1030, and is used to store the temperature sensing data output by the analog-to-digital converter 1031 in register 1034, so as to send it to the next-level drive unit via the transmitter 1036. The receiver 1035 can receive the temperature sensing data from the previous-level drive unit and temporarily store it in register 1034, so as to send it sequentially to the next-level drive unit via the transmitter 1036.

[0092] Figure 11 This is a circuit diagram of an electronic device according to an embodiment of this disclosure. (See reference...) Figure 11 The electronic devices of some embodiments disclosed herein can realize, for example... Figure 11 The circuit architecture is as follows. In this embodiment, the electronic device 1100 includes a control unit 1150, multiple light-emitting units 1110_1 to 1110_C, multiple driving units 1131_1 to 1131_C, multiple temperature sensors 1140_1 to 1140_C, and an analog-to-digital converter 1160, where C is a positive integer. The analog-to-digital converter 1160 is coupled to the temperature sensors 1140_1 to 1140_C. The control unit 1150 is coupled to the analog-to-digital converter 1160. The driving units 1131_1 to 1131_C are connected in cascade. Each of the driving units 1131_1 to 1131_C is coupled to a different part of the light-emitting units 1110_1 to 1110_C.

[0093] In this embodiment, the light-emitting units 1110_1 to 1110_C can be multiple light-emitting diodes (LEDs), and one end of each light-emitting unit 1110_1 to 1110_C is coupled to a driving voltage VLED. The other ends of each light-emitting unit 1110_1 to 1110_C are respectively coupled to driving units 1131_1 to 1131_C. The driving units 1131_1 to 1131_C are used to provide driving current, and the brightness of the light-emitting units 1110_1 to 1110_C is controlled by the driving current. In this embodiment, the driving units 1131_1 to 1131_C and the temperature sensors 1140_1 to 1140_C can be disposed in different areas of the substrate (e.g., ...). Figure 1 As shown), the brightness of light emitted in different areas is controlled separately. In addition, temperature sensors 1140_1 to 1140_C can sense the temperature of different areas and send analog temperature sensing signals to analog-to-digital converter 1160 in sequence, so that analog-to-digital converter 1160 can output the corresponding temperature sensing data to control unit 1150 in sequence.

[0094] In this embodiment, temperature sensors 1140_1 to 1140_C may, for example, include thermistors with negative temperature coefficients, but this disclosure is not limited thereto. In this embodiment, control unit 1150 may control drive units 1131_1 to 1131_C based on the temperature sensing data corresponding to different regions, so as to adjust the brightness of light-emitting units 1110_1 to 1110_C or activate heat dissipation devices corresponding to different regions.

[0095] Figure 12 This is a circuit diagram of an electronic device according to an embodiment of this disclosure. (See reference...) Figure 12 The electronic devices of some embodiments disclosed herein can realize, for example... Figure 12The circuit architecture is as follows. In this embodiment, the electronic device 1200 includes a control unit 1250, multiple light-emitting units 1210_1 to 1210_D, multiple driving units 1231_1 to 1231_D, and multiple temperature sensors 1240_1 to 1240_D, where D is a positive integer. The control unit 1250 includes an analog switch 1251 and an analog-to-digital converter 1252. The analog switch 1251 may be a multiplexer circuit. The analog switch 1251 is coupled to the temperature sensors 1240_1 to 1240_D and the analog-to-digital converter 1252. The driving units 1231_1 to 1231_D are connected in cascade. Each of the driving units 1231_1 to 1231_D is coupled to a different part of the light-emitting units 1210_1 to 1210_D.

[0096] In this embodiment, the light-emitting units 1210_1 to 1210_D can be multiple light-emitting diodes, and one end of each light-emitting unit 1210_1 to 1210_D is coupled to the driving voltage VLED. The other end of each light-emitting unit 1210_1 to 1210_D is coupled to the driving units 1231_1 to 1231_D. The driving units 1231_1 to 1231_D are used to provide driving current, and the brightness of the light-emitting units 1210_1 to 1210_D is controlled by the driving current. In this embodiment, the driving units 1231_1 to 1231_D and the temperature sensors 1240_1 to 1240_D can be disposed in different areas of the substrate (e.g., ...). Figure 1 As shown, the brightness of light emitted from different areas is controlled separately. Furthermore, temperature sensors 1240_1 to 1240_D can sense the temperature of different areas and sequentially send analog temperature sensing signals to the analog switch 1251. The analog switch 1251 can sequentially send analog temperature sensing signals to the analog-to-digital converter 1252, so that the analog-to-digital converter 1252 can sequentially output corresponding temperature sensing data.

[0097] In this embodiment, temperature sensors 1240_1 to 1240_D may, for example, include thermistors with negative temperature coefficients, but this disclosure is not limited thereto. In this embodiment, control unit 1250 can control drive units 1231_1 to 1231_D based on the temperature sensing data corresponding to different regions, so as to adjust the brightness of light-emitting units 1210_1 to 1210_D or turn on heat dissipation devices corresponding to different regions.

[0098] Figure 13 This is a circuit diagram of an electronic device according to an embodiment of this disclosure. (See reference...) Figure 13 The electronic devices of some embodiments disclosed herein can realize, for example... Figure 13The circuit architecture is as follows. In this embodiment, the electronic device 1300 includes a control unit 1350, multiple light-emitting units 1310_1 to 1310_E, multiple driving units 1331_1 to 1331_E, multiple temperature sensors 1340_1 to 1340_E, and an analog-to-digital converter 1351, where E is a positive integer. The control unit 1350 includes an analog-to-digital converter 1352. The analog-to-digital converter 1351 may be a multiplexer circuit. The analog-to-digital converter 1351 is coupled to the temperature sensors 1340_1 to 1340_E and the analog-to-digital converter 1352. The driving units 1331_1 to 1331_E are connected in cascade. Each of the driving units 1331_1 to 1331_E is coupled to a different part of the light-emitting units 1310_1 to 1310_E.

[0099] In this embodiment, the light-emitting units 1310_1 to 1310_E can be multiple light-emitting diodes (LEDs), and one end of each light-emitting unit 1310_1 to 1310_E is coupled to the driving voltage VLED. The other ends of the light-emitting units 1310_1 to 1310_E are respectively coupled to the driving units 1331_1 to 1331_E. The driving units 1331_1 to 1331_E are used to provide driving current, and the brightness of the light-emitting units 1310_1 to 1310_E is controlled by the driving current. In this embodiment, the driving units 1331_1 to 1331_E and the temperature sensors 1340_1 to 1340_E can be disposed in different areas of the substrate (e.g., ...). Figure 1 As shown, the brightness of light emitted from different areas is controlled separately. Furthermore, temperature sensors 1340_1 to 1340_E can sense the temperature of different areas and sequentially send analog temperature sensing signals to analog switch 1351. Analog switch 1351 can sequentially send analog temperature sensing signals to analog-to-digital converter 1352, so that analog-to-digital converter 1352 can sequentially output corresponding temperature sensing data.

[0100] In this embodiment, temperature sensors 1340_1 to 1340_E may, for example, include thermistors with negative temperature coefficients, but this disclosure is not limited thereto. In this embodiment, control unit 1350 may control drive units 1331_1 to 1331_E according to the temperature sensing data corresponding to different regions, so as to adjust the brightness of light-emitting units 1310_1 to 1310_E or turn on heat dissipation devices corresponding to different regions.

[0101] Figure 14 This is a circuit diagram of an electronic device according to an embodiment of this disclosure. (See reference...) Figure 14 The electronic devices of some embodiments disclosed herein can realize, for example... Figure 14The circuit architecture is as follows. In this embodiment, the electronic device 1400 includes a control unit 1450, multiple light-emitting units 1410_1 to 1410_F, multiple driving units 1431_1 to 1431_F, multiple temperature sensors 1440_1 to 1440_F, and a comparator 1460, where F is a positive integer. The control unit 1450 is coupled to the comparator 1460. The comparator 1460 is coupled to the temperature sensors 1440_1 to 1440_F. The driving units 1431_1 to 1431_F are connected in cascade. Each of the driving units 1431_1 to 1431_F is coupled to a different part of the light-emitting units 1410_1 to 1410_F.

[0102] In this embodiment, the light-emitting units 1410_1 to 1410_F can be multiple light-emitting diodes (LEDs), and one end of each light-emitting unit 1410_1 to 1410_F is coupled to the driving voltage VLED. The other ends of the light-emitting units 1410_1 to 1410_F are respectively coupled to the driving units 1431_1 to 1431_F. The driving units 1431_1 to 1431_F are used to provide driving current, and the brightness of the light-emitting units 1410_1 to 1410_F is controlled by the driving current. In this embodiment, the driving units 1431_1 to 1431_F and the temperature sensors 1440_1 to 1440_F can be disposed in different areas of the substrate (e.g., ...). Figure 1 As shown, the brightness of different areas is controlled separately. Temperature sensors 1440_1 to 1440_F can sense the temperature of different areas and sequentially send analog temperature sensing signals to comparator 1460. Comparator 1460 can determine whether the temperature is higher than a temperature threshold and output a digital comparison result to control unit 1450. From another perspective, the control unit 1450 of this embodiment can have a lower setup cost (component cost).

[0103] In this embodiment, temperature sensors 1440_1 to 1440_F may, for example, include thermistors with negative temperature coefficients, but this disclosure is not limited thereto. In this embodiment, control unit 1450 may control drive units 1431_1 to 1431_F based on the temperature sensing data corresponding to different regions, so as to adjust the brightness of light-emitting units 1410_1 to 1410_F or activate heat dissipation devices corresponding to different regions.

[0104] Figure 15 This is a circuit diagram of an electronic system according to an embodiment of this disclosure. (See reference...) Figure 15 The control unit disclosed herein can be implemented in Figure 15In the electronic system 1500, in this embodiment, the electronic system 1500 may be a driving assistance system. The electronic system 1500 may include a vehicle control unit (VCU) 1510, a transmitting interface 1520, a receiving interface 1530, a storage unit 1540, a control unit 1550, a display 1560, and a backlight module 1570. The backlight module 1570 may be a backlight panel. In this embodiment, the vehicle control unit 1510 is coupled to the transmitting interface 1520. The transmitting interface 1520 communicates with the receiving interface 1530. The control unit 1550 is coupled to the receiving interface 1530, the storage unit 1540, the display 1560, and the backlight module 1570. The storage unit 1540 may be flash memory. In this embodiment, the light-emitting unit, the driving unit, and the temperature sensor described in the above embodiments may be implemented in the backlight module 1570.

[0105] In this embodiment, the above-mentioned Figure 4 and Figure 5 Taking an example application scenario of this embodiment, a user can input a command to set a safety information area through the vehicle control unit 1510, and send the command to the control unit 1550 for setting through the sending interface 1520 and the receiving interface 1530. Furthermore, the control unit 1550 can store the command to set the safety information area in the storage unit 1540. The control unit 1550 can then perform the following actions on the backlight module 1570 as described above, based on the command to set the safety information area. Figure 6 The zoned temperature control method.

[0106] Figure 16 This is a schematic diagram of a zoned temperature control module according to an embodiment of this disclosure. (See reference) Figure 16 The control unit disclosed herein may have the following characteristics: Figure 16 The architecture is shown. In this embodiment, the control unit 1600 may include an image data source 1610, an image pixel path switching module 1620, a non-safe area display data processing module 1630, a safe area display data processing module 1640, a local backlight adjustment module 1650, an image data output module 1660, a power control module 1670, and a heat dissipation device control module 1680. In this embodiment, the above-mentioned modules may be implemented in the form of algorithms, programs, or software.

[0107] In this embodiment, the image pixel path switching module 1620 can receive image data from the image data source 1610. The image pixel path switching module 1620 can, according to the instructions for setting security information areas described in the above embodiments, divide the image data into display data for non-secure areas and secure areas. The image pixel path switching module 1620 can output non-secure area display data to the non-secure area display data processing module 1630, and can output secure area display data to the secure area display data processing module 1640.

[0108] In this embodiment, the non-safe area display data processing module 1630 and the safe area display data processing module 1640 can respectively output corresponding image data to the image data output module 1660 through the local backlight adjustment module 1650, so that the image data output module 1660 can drive the display panel and the backlight panel according to the image data. In this embodiment, the control unit 1600 can also output a control signal to the non-safe area display data processing module 1630 through the power control module 1670 according to the temperature sensing results described in the above embodiments, so that when the temperature of the corresponding area is too high, the power of the non-safe area of ​​the backlight panel can be reduced. Alternatively, the power control module 1670 can control the heat dissipation device of the corresponding area through the heat dissipation device control module 1680 to achieve an effective heat reduction effect.

[0109] Based on the above reasons, the electronic device and zoned temperature control method disclosed herein can detect when the temperature of the light-emitting unit or driving unit rises, causing the temperature of the area of ​​the substrate electronic device to be too high. It can effectively detect the temperature of the area of ​​the substrate and can effectively cool down the area of ​​the excessive temperature by reducing the brightness or by turning on the heat dissipation device.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions disclosed herein, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic device, characterized in that, include substrate; Multiple light-emitting units are disposed on the substrate; The first driving unit and the second driving unit are disposed on the substrate and are respectively used to drive at least one of the plurality of light-emitting units; The first temperature sensor and the second temperature sensor are respectively disposed adjacent to the first driving unit and the second driving unit; as well as The control unit is coupled to the first temperature sensor and the second temperature sensor, and is used to receive the sensing results of the first temperature sensor and the second temperature sensor, so as to adjust the first drive unit and the second drive unit according to the sensing results.

2. The electronic device according to claim 1, characterized in that, Also includes: A third driving unit is disposed on the substrate and between the first driving unit and the second driving unit.

3. The electronic device according to claim 2, characterized in that, The first driving unit, the second driving unit, and the third driving unit are equidistantly arranged on the substrate.

4. The electronic device according to claim 3, characterized in that, The first driving unit, the second driving unit, and the third driving unit are disposed on the substrate between the first temperature sensor and the second temperature sensor.

5. The electronic device according to claim 2, characterized in that, Also includes: A third temperature sensor is disposed on the substrate and adjacent to the third driving unit.

6. The electronic device according to claim 1, characterized in that, Also includes: An analog-to-digital converter is coupled to the first temperature sensor.

7. The electronic device according to claim 6, characterized in that, The analog-to-digital converter is integrated into the control unit or the first drive unit.

8. The electronic device according to claim 1, characterized in that, The first temperature sensor and the second temperature sensor are respectively integrated into the first driving unit and the second driving unit.

9. The electronic device according to claim 1, characterized in that, The control unit includes a temperature calculation module.

10. A method for zoned temperature control in an electronic device, characterized in that, include: Detecting the temperature of multiple areas of the electronic device; Determine whether the temperature of at least one of the plurality of regions is greater than a temperature threshold. When the temperature of at least one of the plurality of regions is greater than the temperature threshold, it is determined whether at least one of the plurality of regions corresponds to a security information region. When at least one of the plurality of regions corresponds to the security information region, the heat dissipation device corresponding to at least one of the plurality of regions is activated. as well as When at least one of the plurality of regions corresponds to a non-security information region, the brightness of at least one of the plurality of regions is reduced.

11. The zoned temperature control method according to claim 10, characterized in that, Also includes: Determine whether the brightness of at least one of the plurality of regions has reached a brightness threshold; as well as When the brightness of at least one of the multiple regions reaches the brightness threshold, the heat dissipation device is activated.

12. The zoned temperature control method according to claim 10, characterized in that, The steps for activating the heat dissipation device include: The heat dissipation speed of the heat dissipation device is adjusted between the security information area and the non-security information area.

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