Display device for vehicle

Abstract

The present invention relates to a display device for a vehicle. A display device for a vehicle according to one embodiment disclosed herein comprises: a display; and a signal processing device for outputting an image signal to the display, wherein the signal processing device, while displaying a vehicle information image in a first area of the display, varies the luminance of the vehicle information image or a camera-based image, to be displayed in a second area of the display, if the luminance difference between the vehicle information image and the camera-based image is equal to or greater than a predetermined value. Accordingly, it is possible to reduce glare caused by a luminance difference in the display.

Description

Vehicle display device

[0001] The present disclosure relates to a vehicle display device, and more particularly, to a vehicle display device capable of reducing glare caused by a difference in brightness in a display.

[0002] A vehicle is a device that allows the user to move in the desired direction. A representative example is an automobile.

[0003] Meanwhile, for the convenience of vehicle users, vehicle display devices are being installed inside vehicles.

[0004] For example, displays are placed in clusters and other areas to display various types of information. Meanwhile, vehicles are increasingly equipped with various displays, such as Audio Video Navigation (AVN) displays, separate from the cluster to display driving information and other information.

[0005] Recently, cluster displays and AVN displays are being integrated to create an integrated display.

[0006] However, when implementing an integrated display, there is a problem of glare due to differences in brightness because different images are displayed for each area.

[0007] The problem of the present disclosure is to provide a vehicle display device capable of reducing glare caused by a difference in brightness in the display.

[0008] Another problem of the present disclosure is to provide a vehicle display device capable of stably displaying a vehicle warning image on a display.

[0009] According to one embodiment of the present disclosure for achieving the above-described problem, a vehicle display device includes a display and a signal processing device for outputting an image signal to the display, wherein the signal processing device, when a vehicle information image is displayed in a first area of ​​the display, and a difference in brightness between the vehicle information image and a camera-based image to be displayed in a second area of ​​the display is greater than a predetermined value, changes the brightness of the vehicle information image or the camera-based image.

[0010] Meanwhile, the signal processing device can control the brightness of the camera-based image to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value during night driving.

[0011] Meanwhile, the signal processing device can control the brightness of the camera-based image to increase stepwise when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image.

[0012] Meanwhile, when the signal processing device displays a vehicle information image in a first area of ​​the display and displays a map image in a second area, and the camera is activated so that the image displayed in the second area is switched to a camera-based image, if the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value, the signal processing device can vary the brightness of the vehicle information image or the camera-based image.

[0013] Meanwhile, the signal processing device can vary the brightness of the vehicle information image or camera-based image based on the ambient illumination of the vehicle.

[0014] Meanwhile, the signal processing device can vary the predetermined value based on the illumination around the vehicle.

[0015] Meanwhile, the signal processing device can vary the brightness of the vehicle information image or camera-based image based on the setting input.

[0016] Meanwhile, the signal processing device can vary a predetermined value based on the setting input.

[0017] Meanwhile, the signal processing device can control a second layer including a vehicle warning image to be overlaid on a first layer including surrounding vehicle information when displaying a vehicle information image in a first area of ​​the display.

[0018] Meanwhile, the signal processing device can control the safety level of the first layer including surrounding vehicle information and the safety level of the second layer including vehicle warning images to be different.

[0019] Meanwhile, the signal processing device can control the safety level of the second layer including the vehicle warning image to be higher than the safety level of the first layer including the surrounding vehicle information.

[0020] Meanwhile, the signal processing device can control the second layer and the first layer to be overlaid on the third layer including the camera-based image.

[0021] Meanwhile, the vehicle information image may include vehicle speed information, vehicle driving information, vehicle temperature information, vehicle warning images, or battery charging information.

[0022] Meanwhile, camera-based images may include images of the vehicle's surroundings, the vehicle's front, or the vehicle's rear.

[0023] Meanwhile, the display includes a liquid crystal panel and a backlight that outputs light to the liquid crystal panel, and the signal processing device can control the light of the backlight arranged in the first area or the second area to be varied when the difference in brightness between the vehicle information image in the first area of ​​the display and the camera-based image to be displayed in the second area of ​​the display is greater than a predetermined value.

[0024] Meanwhile, the signal processing device can control the light of the backlight placed in the second area to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value during night driving.

[0025] Meanwhile, the signal processing device can control the light of the backlight placed in the second area to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image.

[0026] Meanwhile, the display includes an organic light-emitting panel, and the signal processing device can vary the brightness of the vehicle information image or the camera-based image displayed on the organic light-emitting panel when the difference in brightness between the vehicle information image in the first area of ​​the display and the camera-based image to be displayed in the second area of ​​the display is greater than a predetermined value.

[0027] Meanwhile, the signal processing device can control the brightness of the camera-based image displayed on the organic light-emitting panel to gradually increase when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value during night driving.

[0028] Meanwhile, the signal processing device can control the brightness of the camera-based image displayed on the organic light-emitting panel to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image.

[0029] Meanwhile, the display further includes a driving control unit that outputs a driving signal to the organic light-emitting panel, and the driving control unit can output at least one vehicle warning image to a portion of the organic light-emitting panel using at least one vehicle warning image stored in the memory.

[0030] A vehicle display device according to another embodiment of the present disclosure includes a display and a signal processing device that outputs an image signal to the display, wherein the signal processing device, in a state where a vehicle information image is displayed in a first area of ​​the display and a map image is displayed in a second area, changes the brightness of the camera-based image to be displayed in place of the vehicle information image in the first area, and the map image or the vehicle information image, when the difference in brightness between the map image or the vehicle information image is greater than a predetermined value.

[0031] Meanwhile, the signal processing device can control the brightness of the camera-based image to increase in steps when the difference in brightness between the map image and the camera-based image is greater than a predetermined value during night driving.

[0032] Meanwhile, the signal processing device can control the brightness of the camera-based image to increase stepwise when the difference in brightness between the map image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the map image or the vehicle information image.

[0033] A vehicle display device according to one embodiment of the present disclosure includes a display and a signal processing device that outputs an image signal to the display, wherein the signal processing device, when a vehicle information image is displayed in a first area of ​​the display, and a difference in brightness between the vehicle information image and a camera-based image to be displayed in a second area of ​​the display is greater than a predetermined value, changes the brightness of the vehicle information image or the camera-based image. Accordingly, glare due to a difference in brightness in the display can be reduced.

[0034] Meanwhile, the signal processing device can control the brightness of the camera-based image to increase gradually when the difference in brightness between the vehicle information image and the camera-based image exceeds a predetermined value during night driving. This reduces glare caused by the difference in brightness on the display.

[0035] Meanwhile, the signal processing device can control the brightness of the camera-based image to increase in stages when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image. Accordingly, glare caused by the brightness difference on the display can be reduced.

[0036] Meanwhile, when the signal processing device displays a vehicle information image in a first area of ​​the display and displays a map image in a second area, and the camera is activated so that the image displayed in the second area switches to a camera-based image, if the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value, the signal processing device can vary the brightness of the vehicle information image or the camera-based image. Accordingly, glare caused by the difference in brightness on the display can be reduced.

[0037] Meanwhile, the signal processing device can vary the brightness of the vehicle information image or camera-based image based on the ambient lighting of the vehicle. Accordingly, the brightness of the image can be varied in response to the ambient lighting of the vehicle.

[0038] Meanwhile, the signal processing device can vary a predetermined value based on the ambient lighting of the vehicle. This reduces glare caused by differences in brightness on the display in response to the ambient lighting of the vehicle.

[0039] Meanwhile, the signal processing device can vary the brightness of a vehicle information image or a camera-based image based on a setting input. Accordingly, the brightness of the image can be varied in response to the setting input.

[0040] Meanwhile, the signal processing device can vary a predetermined value based on a setting input. Accordingly, the brightness of the image can be varied in response to the setting input.

[0041] Meanwhile, the signal processing device can control a second layer including a vehicle warning image to be overlaid on a first layer including surrounding vehicle information when displaying a vehicle information image in the first area of ​​the display. This reduces glare caused by differences in brightness on the display.

[0042] Meanwhile, the signal processing device can control the safety level of the first layer, which includes surrounding vehicle information, to be different from the safety level of the second layer, which includes vehicle warning images. Accordingly, the layers can be displayed separately based on safety level.

[0043] Meanwhile, the signal processing device can control the safety level of the second layer, which includes vehicle warning images, to be higher than the safety level of the first layer, which includes surrounding vehicle information. Accordingly, layers can be displayed separately based on safety level.

[0044] Meanwhile, the signal processing device can control the second layer and the first layer to be overlaid on the third layer containing the camera-based image. This reduces glare caused by differences in brightness on the display.

[0045] Meanwhile, vehicle information images may include vehicle speed information, vehicle driving information, vehicle temperature information, vehicle warning images, or battery charge information. This reduces glare caused by differences in brightness on the display.

[0046] Meanwhile, camera-based images may include images of the vehicle's surroundings, the vehicle's front, or the vehicle's rear. This reduces glare caused by differences in brightness on the display.

[0047] Meanwhile, the display includes a liquid crystal panel and a backlight that outputs light to the liquid crystal panel, and the signal processing device can control the light of the backlight arranged in the first area or the second area to be varied when the difference in brightness between the vehicle information image in the first area of ​​the display and the camera-based image to be displayed in the second area of ​​the display is greater than a predetermined value. Accordingly, glare caused by the difference in brightness in the display can be reduced.

[0048] Meanwhile, the signal processing device can control the backlight positioned in the second area to gradually increase its brightness when the difference in brightness between the vehicle information image and the camera-based image exceeds a predetermined value during night driving. This reduces glare caused by the difference in brightness on the display.

[0049] Meanwhile, the signal processing device can control the light of the backlight placed in the second area to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image.

[0050] Meanwhile, the display includes an organic light-emitting panel, and the signal processing device can vary the brightness of the vehicle information image or the camera-based image displayed on the organic light-emitting panel when the difference in brightness between the vehicle information image in the first area of ​​the display and the camera-based image to be displayed in the second area of ​​the display is greater than a predetermined value.

[0051] Meanwhile, the signal processing device can control the brightness of the camera-based image displayed on the organic light-emitting panel to gradually increase when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value during night driving.

[0052] Meanwhile, the signal processing device can control the brightness of the camera-based image displayed on the organic light-emitting panel to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image.

[0053] Meanwhile, the display further includes a driving control unit that outputs a driving signal to the organic light-emitting panel, and the driving control unit can output at least one vehicle warning image to a portion of the organic light-emitting panel using at least one vehicle warning image stored in the memory. Accordingly, glare caused by a difference in brightness in the display can be reduced.

[0054] According to another embodiment of the present disclosure, a vehicle display device includes a display and a signal processing device that outputs an image signal to the display, wherein the signal processing device displays a vehicle information image in a first area of ​​the display and displays a map image in a second area, and when a difference in brightness between a camera-based image to be displayed in place of the vehicle information image in the first area and the map image or the vehicle information image is greater than a predetermined value, changes the brightness of the camera-based image, the map image, or the vehicle information image. Accordingly, glare due to a difference in brightness in the display can be reduced.

[0055] Meanwhile, the signal processing device can control the brightness of the camera-based image to increase gradually when the difference in brightness between the map image and the camera-based image exceeds a predetermined value during night driving. This reduces glare caused by the difference in brightness on the display.

[0056] Meanwhile, the signal processing device can control the brightness of the camera-based image to increase in stages when the difference in brightness between the map image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the map image or the vehicle information image. Accordingly, glare caused by the brightness difference on the display can be reduced.

[0057] Figure 1 is a drawing showing an example of the exterior and interior of a vehicle.

[0058] FIG. 2 is a drawing illustrating the appearance of a vehicle display device according to an embodiment of the present disclosure.

[0059] FIG. 3 illustrates an example of an internal block diagram of the vehicle display device of FIG. 2.

[0060] Figure 4 is an example of an internal block diagram of the first display of Figure 3.

[0061] FIGS. 5A to 5C are drawings illustrating various examples of the arrangement of the backlight of FIG. 4.

[0062] FIG. 6 is an example of an internal block diagram of a vehicle display device related to the present disclosure.

[0063] FIG. 7 is an example of an internal block diagram of a vehicle display device according to one embodiment of the present disclosure.

[0064] FIG. 8A is an example of an internal block diagram of a vehicle display device according to another embodiment of the present disclosure.

[0065] Figure 8b is a drawing referenced in the description of Figure 8a.

[0066] FIG. 9 is a flowchart illustrating an operation method of a vehicle display device according to one embodiment of the present disclosure.

[0067] Figures 10a to 22c are drawings referenced in the description of Figure 9.

[0068] Fig. 22 is another example of an internal block diagram of the first display of Fig. 3.

[0069] Figures 23a to 23d are drawings for reference in the description of the organic light-emitting panel of Figure 22.

[0070] Hereinafter, the present disclosure will be described in more detail with reference to the drawings.

[0071] The suffixes "module" and "part" used in the following description are given solely for the convenience of writing this specification and do not impart any particularly significant meaning or role to the components themselves. Therefore, the terms "module" and "part" may be used interchangeably.

[0072] Figure 1 is a drawing showing an example of the exterior and interior of a vehicle.

[0073] Referring to the drawing, the vehicle (200) is operated by a plurality of wheels (103FR, 103FL, 103RL, etc.) that rotate by a power source and a steering wheel (150) for controlling the direction of travel of the vehicle (200).

[0074] Meanwhile, the vehicle (200) may further be equipped with a camera (195) for capturing images of the front of the vehicle.

[0075] Meanwhile, the vehicle (200) may be equipped with multiple displays (180, 180h) for displaying images, information, etc. inside.

[0076] For example, among the plurality of displays (180, 180h), the first display (180) may be a cluster display and an AVN (Audio Video Navigation) display, and the second display (180h) may be a HUD display, which is a head-up display (HUD) in which an image is projected onto a predetermined area (ARa) of a windshield (WS).

[0077] As another example, the first display (180) may be a cluster display, an AVN (Audio Video Navigation) display, and a passenger seat display.

[0078] Meanwhile, the vehicle display device of the present disclosure (100 in FIG. 7) displays a vehicle information image and a camera-based image on a first display (180) among a plurality of displays (180, 180h).

[0079] Meanwhile, a vehicle display device (100 of FIG. 7) according to one embodiment of the present disclosure includes a display (180) and a signal processing device (170) that outputs an image signal to the display (180), and the signal processing device (170) changes the brightness of the vehicle information image or the camera-based image when the difference in brightness between the vehicle information image and a camera-based image to be displayed in a second area (Arb of FIG. 10d) of the display (180) is greater than or equal to a predetermined value while displaying a vehicle information image in a first area (Ara of FIG. 10d) of the display (180). Accordingly, glare due to the difference in brightness in the display (180) can be reduced.

[0080] In particular, the signal processing device (170) can control the brightness of the camera-based image to increase in stages when the difference in brightness between the vehicle information image and the camera-based image exceeds a predetermined value during night driving. Accordingly, glare caused by the difference in brightness on the display (180) can be reduced.

[0081] Meanwhile, a vehicle display device (100 of FIG. 7) according to another embodiment of the present disclosure includes a display (180) and a signal processing device (170) that outputs an image signal to the display (180), and the signal processing device (170) displays a vehicle information image in a first area (Ara of FIG. 13b) of the display (180) and displays a map image in a second area (Arb of FIG. 13b), and when a difference in brightness between a camera-based image to be displayed in place of the vehicle information image in the first area (ARa) and the map image or the vehicle information image is greater than a predetermined value, the signal processing device changes the brightness of the camera-based image or the map image or the vehicle information image. Accordingly, glare due to the difference in brightness in the display (180) can be reduced.

[0082] Meanwhile, the signal processing device (170) can control the brightness of the camera-based image to increase in stages when the difference in brightness between the map image and the camera-based image exceeds a predetermined value during night driving. Accordingly, glare caused by the difference in brightness on the display (180) can be reduced.

[0083] Meanwhile, the vehicle (200) described in this specification may be a concept that includes all of a vehicle equipped with an engine as a power source, a hybrid vehicle equipped with an engine and an electric motor as a power source, and an electric vehicle equipped with an electric motor as a power source.

[0084] FIG. 2 is a drawing illustrating the appearance of a vehicle display device according to an embodiment of the present disclosure.

[0085] A vehicle display device (100) according to an embodiment of the present disclosure may include a signal processing device (170) that performs signal processing for displaying images, information, etc. on at least one of a plurality of displays (180, 180h).

[0086] Among the plurality of displays (180, 180h), the first display (180) may be a cluster display for displaying driving status, operation information, etc., and an AVN (Audio Video Navigation) display for displaying vehicle driving information, navigation maps, various entertainment information, or images, and the second display (180h) may be a HUD display for displaying vehicle driving information.

[0087] The signal processing device (170) has a memory (508) and a processor (175) inside and can control at least one of a plurality of displays (180, 180h).

[0088] Meanwhile, the signal processing device (170) can execute a first virtual machine to a third virtual machine (not shown) on a hypervisor (505) within a processor (175).

[0089] The first virtual machine (not shown) is a server virtual machine and can control the second virtual machine (not shown) and the third virtual machine (not shown), which are guest virtual machines.

[0090] Meanwhile, the second virtual machine can be named the first guest virtual machine (Guest Virtual Maschine), and the third virtual machine can be named the second guest virtual machine.

[0091] A first guest virtualization machine (not shown) can operate for a first display (180), and a second guest virtualization machine (not shown) can operate for a second display (180h).

[0092] Meanwhile, the server virtualization machine (not shown) within the processor (175) can control the memory (508) based on the hypervisor (505) to be set for the same data transmission to the first guest virtualization machine (not shown) and the second guest virtualization machine (not shown). Accordingly, the same information or the same image can be displayed in synchronization on the first display (180) and the second display (180h) within the vehicle.

[0093] Meanwhile, a server virtualization machine (not shown) within the processor (175) can receive and process wheel speed sensor data of the vehicle, and transmit the processed wheel speed sensor data to at least one of the first guest virtualization machine (not shown) or the second guest virtualization machine (not shown). Accordingly, the wheel speed sensor data of the vehicle can be shared with at least one virtual machine, etc.

[0094] Accordingly, it is possible to control multiple displays (180, 180h) using one signal processing device (170).

[0095] Meanwhile, some of the multiple displays (180, 180h) may operate under Linux OS, while others may operate under Web OS.

[0096] The signal processing device (170) according to the embodiment of the present disclosure can control multiple displays (180, 180h) operating under various operating systems (OS) to display the same information or the same image in synchronization.

[0097] FIG. 3 illustrates an example of an internal block diagram of a vehicle display device according to an embodiment of the present disclosure.

[0098] Referring to the drawings, a vehicle display device (100) according to an embodiment of the present disclosure may include an input unit (110), a communication device (120), an interface (130), a memory (140), a signal processing device (170), a plurality of displays (180, 180h), an audio output unit (185), and a power supply unit (190).

[0099] The input unit (110) may be equipped with physical buttons, pads, etc. for button input, touch input, etc.

[0100] Meanwhile, the input unit (110) may be equipped with a microphone (not shown) for user voice input.

[0101] The communication device (120) can exchange data wirelessly with a mobile terminal (800) or a server (not shown).

[0102] In particular, the communication device (120) can wirelessly exchange data with the vehicle driver's mobile terminal. Various data communication methods are possible, such as Bluetooth, WiFi, WiFi Direct, and APiX.

[0103] The communication device (120) can receive weather information, road traffic information, for example, TPEG (Transport Protocol Expert Group) information, from a mobile terminal (800) or a server (not shown). To this end, the communication device (120) may be equipped with a mobile communication module (not shown).

[0104] The interface (130) can receive sensor information, etc. from the ECU (770) or sensor device (760) and transmit the received information to the signal processing device (170).

[0105] Here, the sensor information may include at least one of vehicle direction information, vehicle location information (GPS information), vehicle angle information, vehicle speed information, vehicle acceleration information, vehicle inclination information, vehicle forward / backward information, battery information, fuel information, tire information, vehicle lamp information, vehicle interior temperature information, and vehicle interior humidity information.

[0106] Such sensor information may be obtained from a heading sensor, a yaw sensor, a gyro sensor, a position module, a vehicle forward / backward sensor, a wheel sensor, a vehicle speed sensor, a body tilt detection sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor based on steering wheel rotation, a vehicle internal temperature sensor, a vehicle internal humidity sensor, etc. Meanwhile, the position module may include a GPS module for receiving GPS information.

[0107] Meanwhile, the interface (130) can receive vehicle front image data, vehicle side image data, vehicle rear image data, vehicle surrounding obstacle distance information, etc. from a camera (195) or a rider (not shown), and transmit the received information to a signal processing device (170).

[0108] The memory (140) can store various data for the overall operation of the vehicle display device (100), such as a program for processing or controlling the signal processing device (170).

[0109] For example, the memory (140) may store data regarding a hypervisor, a server virtualization machine (not shown), and multiple guest virtualization machines for execution within the processor (175).

[0110] The audio output unit (185) converts an electric signal from the signal processing device (170) into an audio signal and outputs it. For this purpose, a speaker or the like may be provided.

[0111] The power supply unit (190) can supply power required for the operation of each component under the control of the signal processing device (170). In particular, the power supply unit (190) can receive power from a battery or the like inside the vehicle.

[0112] The third display, the HUD display (180h), includes an image generating device (300 in FIG. 1) for image projection and can output an augmented reality-based object under the control of a signal processing device (170).

[0113] For example, the HUD display (180h) can output vehicle speed information, vehicle direction information, front vehicle object, distance indicator from the front vehicle, etc.

[0114] As another example, the HUD display (180h) can output an augmented reality rain carpet, an augmented reality route carpet, or an augmented reality dynamic carpet corresponding to the lane image.

[0115] The signal processing device (170) can control multiple displays (180, 180h).

[0116] The signal processing device (170) controls the overall operation of each unit within the vehicle display device (100).

[0117] For example, the signal processing device (170) may include a memory (508) and a processor (175) that performs signal processing for a vehicle display (180, 180h).

[0118] The processor (175) executes a hypervisor (not shown), and can execute a server virtualization machine (not shown) and multiple guest virtualization machines (not shown) on the executed hypervisor.

[0119] At this time, the first guest virtualization machine (not shown) can operate for the first display (180), and the second guest virtualization machine (not shown) can operate for the second display (180h).

[0120] Meanwhile, the signal processing device (170) can process various signals such as audio signals, video signals, and data signals. To this end, the signal processing device (170) can be implemented in the form of a system on chip (SOC).

[0121] Figure 4 is an example of an internal block diagram of the first display of Figure 3.

[0122] Referring to the drawing, a display (180a) based on a liquid crystal display panel (LCD display panel) may include a liquid crystal panel (210), a driving control unit (285a), and a backlight (250).

[0123] A liquid crystal panel (210) includes a first substrate on which a plurality of gate lines (GL) and data lines (DL) are arranged in a matrix form to cross each other to display an image, and thin film transistors and pixel electrodes connected thereto are formed in the crossing area, a second substrate having a common electrode, and a liquid crystal layer formed between the first substrate and the second substrate.

[0124] The driving control unit (285a) drives the liquid crystal panel (210) through control signals and data signals supplied from the signal processing device (170) of Fig. 3. To this end, the driving control unit (285a) includes a timing controller (232a), a gate driver (234a), and a data driver (236a).

[0125] The timing controller (232a) receives a control signal and an R, G, B data signal, a vertical synchronization signal (Vsync), etc. from a signal processing device (170), controls a gate driver (234a) and a data driver (236a) in response to the control signal, rearranges the R, G, B data signals, and provides them to the data drive (236a).

[0126] Under the control of the gate driver (234a), the data driver (236a), and the timing controller (232a), the scanning signal and the image signal are supplied to the liquid crystal panel (210) through the gate line (GL) and the data line (DL).

[0127] The backlight (250) supplies light to the liquid crystal panel (210). To this end, the backlight (250) may include a plurality of light sources (252), a scan driving unit (254) that controls scanning operation of the light sources (252), and a light source driving unit (256) that turns the light sources (252) on / off.

[0128] A predetermined image is displayed using light emitted from a backlight (250) while the light transmittance of the liquid crystal layer is controlled by an electric field formed between the pixel electrode and the common electrode of the liquid crystal panel (210).

[0129] The power supply unit (190) supplies a common electrode voltage (Vcom) to the liquid crystal panel (210) and can supply a gamma voltage to the data driver (236a). In addition, it can supply driving power for driving a light source (252) to the backlight (250).

[0130] FIGS. 5A to 5C are drawings illustrating various examples of the arrangement of the backlight of FIG. 4.

[0131] First, FIG. 5a illustrates a plurality of light sources (252-1, 252-2, 252-3, 252-4) arranged on the rear, upper, and lower sides of the liquid crystal panel (210). The plurality of light sources (252-1, 252-2, 252-3, 252-4) may include a plurality of LEDs (light emitting diodes).

[0132] Next, FIG. 5b illustrates a plurality of light sources (252-1, 252-2, 252-3, 252-4, 252-5, 252-6) arranged on the rear, upper, lower, and central sides of the liquid crystal panel (210). The plurality of light sources (252-1, 252-2, 252-3, 252-4, 252-5, 252-6) may include a plurality of LEDs (light emitting diodes).

[0133] Next, FIG. 5c illustrates a plurality of light sources (252-a, 252-b, 252-c) arranged on the upper side of the rear surface of the liquid crystal panel (210), a plurality of light sources (252-g, 252-h, 252-i) arranged on the lower side, and a plurality of light sources (252-d, 252-e, 252-f) arranged in a central region between the upper and lower sides. Each light source may include a plurality of LEDs (light emitting diodes).

[0134] FIG. 6 is an example of an internal block diagram of a vehicle display device related to the present disclosure.

[0135] Referring to the drawings, a vehicle display device (100x) related to the present disclosure includes a signal processing device (170), a safety processor (186), a timing controller (232), and a panel (210).

[0136] The signal processing device (170) outputs a video signal, and the safety processor (186) receives the video signal and outputs a signal corresponding to the video signal and a vehicle warning image.

[0137] The vehicle warning (tell-tale) image may include at least one of steering wheel information, battery information, ABS information, front lighting information, airbag information, electronic parking brake information, auto hold information, door information, seat belt information, Diesel Particulate Filter (DPF) information, taillight information, low beam information, high beam information, and Hill Descent Control (HDC) information.

[0138] The timing controller (232) can receive a video signal and a signal corresponding to a vehicle warning image and output a scan signal and a data signal to the panel (210).

[0139] Accordingly, an image corresponding to the image signal and a vehicle warning image can be displayed on the panel (210).

[0140] Meanwhile, a signal processing device (170) and a safety processor (186) in a vehicle display device (100x) related to the present disclosure may be mounted on a first circuit board (not shown), and a timing controller (232) may be mounted on a second circuit board (not shown).

[0141] Accordingly, the safety processor (186) can convert the image signal and the signal corresponding to the vehicle warning image into a low-voltage differential signal (LVDS) and transmit the converted LVDS signal to the timing controller (232).

[0142] Meanwhile, since the safety processor (186) and the timing controller (232) are separated from each other, there is a disadvantage in that if the timing controller (232) does not receive a signal from the safety processor (186), it cannot display a video or vehicle warning image.

[0143] For example, if the safety processor (186) fails, a vehicle warning image related to safety cannot be displayed on the panel (210), which poses a significant risk to vehicle safety.

[0144] Accordingly, in this disclosure, a method for stably displaying a vehicle warning image is proposed.

[0145] FIG. 7 is an example of an internal block diagram of a vehicle display device according to one embodiment of the present disclosure.

[0146] Referring to the drawings, a vehicle display device (100) according to one embodiment of the present disclosure includes a display (180) and a signal processing device (170) that outputs a video signal to the display (180).

[0147] Meanwhile, a signal processing device (170) according to an embodiment of the present disclosure, when a vehicle information image is displayed on a first area (Ara of FIG. 10d) of a display (180), and a difference in brightness between the vehicle information image and a camera-based image to be displayed on a second area (Arb of FIG. 10d) of the display (180) is greater than a predetermined value, changes the brightness of the vehicle information image or the camera-based image. Accordingly, glare due to a difference in brightness on the display (180) can be reduced.

[0148] Meanwhile, the signal processing device (170) can control the brightness of the camera-based image to increase in stages when the difference in brightness between the vehicle information image and the camera-based image exceeds a predetermined value during night driving. Accordingly, glare caused by the difference in brightness on the display (180) can be reduced.

[0149] Meanwhile, a signal processing device (170) according to another embodiment of the present disclosure displays a vehicle information image in a first area (Ara of FIG. 13b) of a display (180) and displays a map image in a second area (AraArb of FIG. 13b), and when a difference in brightness between a camera-based image to be displayed in place of the vehicle information image in the first area (ARa) and the map image or vehicle information image is greater than a predetermined value, the device changes the brightness of the camera-based image, the map image, or the vehicle information image. Accordingly, glare due to the difference in brightness in the display (180) can be reduced.

[0150] Meanwhile, the signal processing device (170) can control the brightness of the camera-based image to increase in stages when the difference in brightness between the map image and the camera-based image exceeds a predetermined value during night driving. Accordingly, glare caused by the difference in brightness on the display (180) can be reduced.

[0151] Meanwhile, the display (180) may include a panel (210) and a driving control unit (285) that outputs a driving signal to the panel (210).

[0152] The drive control unit (285) may include a memory (240), a timing controller (232) that outputs a drive signal to the panel (210), and a current detection unit (510) that detects current flowing in the panel (210).

[0153] Meanwhile, the driving control unit (285) can output at least one vehicle warning image to the panel (210) using at least one vehicle warning image stored in the memory (240).

[0154] Accordingly, the vehicle warning image can be displayed stably. In particular, the vehicle warning image can be output separately from the signal processing device (170), thereby enabling the vehicle warning image to be displayed stably.

[0155] Meanwhile, at least one vehicle warning image stored in the memory (240) may include a steering wheel information image, a battery information image, an ABS information image, an AFS (front lighting) information image, an airbag information image, an electronic parking brake (EPB) information image, and an auto hold information image.

[0156] Meanwhile, the driving control unit (285) can output at least one vehicle warning image and a predetermined image stored in the memory (240) to the panel (210) when the video signal output of the signal processing device (170) is stopped. Accordingly, at least one vehicle warning image can be stably displayed.

[0157] Meanwhile, the signal processing device (170) can output a video signal including a plurality of vehicle warning images.

[0158] Meanwhile, the driving control unit (285) can receive multiple vehicle warning images from the signal processing device (170) and output multiple vehicle warning images to the panel (210) separately from at least one vehicle warning image. Accordingly, multiple vehicle warning images can be displayed.

[0159] The plurality of vehicle warning images output from the signal processing device (170) at this time may include a door information image, a seat belt information image, a diesel particulate filter (DPF) information image, a taillight information image, a low beam information image, a high beam information image, and a hill descent control (HDC) information image.

[0160] Meanwhile, the driving control unit (285) can output at least one vehicle warning image instead of outputting multiple vehicle warning images when the video signal output of the signal processing device (170) is interrupted. Accordingly, the vehicle warning image can be stably displayed.

[0161] Meanwhile, the safety level of at least one vehicle warning image output from the driving control unit (285) may be higher than the safety level of a plurality of vehicle warning images output from the signal processing device (170).

[0162] Accordingly, even if the signal output from the signal processing device (170) is interrupted due to a failure of the signal processing device (170), etc., at least one vehicle warning image can be stably displayed using the driving control unit (285).

[0163] FIG. 8A is an example of an internal block diagram of a vehicle display device according to another embodiment of the present disclosure.

[0164] Referring to the drawings, a vehicle display device (100b) according to another embodiment of the present disclosure includes a signal processing device (170) and a first display (180), similar to FIG. 7.

[0165] The operation of the signal processing device (170) in the vehicle display device (100b) can be performed as described in FIG. 7.

[0166] Meanwhile, the vehicle display device (100b) may further include an image distribution unit (177) that distributes the input image signal.

[0167] That is, the vehicle display device (100b) of FIG. 8a differs from that of FIG. 7 in that it controls the first display (180) and the second display (180h) through the image distribution unit (177).

[0168] The first image signal distributed from the image distribution unit (177) is input to the driving control unit (285) in the first display (180), and the timing controller (232) in the driving control unit (285) outputs a driving signal to the first display (180) based on the panel (210) based on the first image signal.

[0169] Meanwhile, the driving control unit (285) outputs at least one vehicle warning image to the first display (180) including the panel (210) using at least one vehicle warning image stored in the memory (240).

[0170] The signal processing device (170) can output a first image signal for the first display (180) and a second image signal for the second display (180h).

[0171] Meanwhile, the signal processing device (170) can output a signal corresponding to a plurality of vehicle warning images for displaying a plurality of vehicle warning images on the first display (180).

[0172] A signal corresponding to a plurality of vehicle warning images is input to a driving control unit (285), and the driving control unit (285) can control the plurality of vehicle warning images to be displayed on the first display (180) based on the signal corresponding to the plurality of vehicle warning images.

[0173] Meanwhile, the second video signal distributed from the video distribution unit (177) can be input to the second display (180h).

[0174] Meanwhile, in the drawing, a driving control unit for the second display (180h) is not separately shown, but similar to the first display (180), a second driving control unit (not shown) for the second display (180h) may be provided.

[0175] Meanwhile, a second drive control unit (not shown) for the second display (180b) can control the display of at least one vehicle warning image using internal memory. Accordingly, at least one vehicle warning image can be stably displayed.

[0176] Meanwhile, the vehicle warning image for the second display (180h) can also be output from the driving control unit (285).

[0177] Figure 8b is a drawing referenced in the description of Figure 8a.

[0178] Referring to the drawing, FIG. 8b illustrates that a vehicle information image is displayed on the first display (180) based on the operation of the driving control unit.

[0179] Referring to the drawing, a drive control unit (285) is arranged within a control circuit board (CPB), and the drive control unit (285) can receive a video signal from a signal processing device (170) and output a gate drive signal (Sgaaa, Sgab) and a data signal (Sda) based on the video signal.

[0180] The drivers (DRa, DRb, DRc) within the source circuit board (SPB) receive gate drive signals (Sgaaa, Sgab) and data signals (Sda) from the drive control unit (285), and based on the gate drive signals (Sgaaa, Sgab) and data signals (Sda), control the vehicle information image (900) to be displayed in the first area of ​​the first display (180).

[0181] At this time, the vehicle information image (900) may include vehicle speed information, vehicle driving information, vehicle temperature information, vehicle warning image, or battery charging information.

[0182] In the drawing, it is exemplified that vehicle speed information, vehicle driving information, and multiple vehicle warning images are displayed within a vehicle information image (900).

[0183] Meanwhile, the vehicle warning image displayed in the vehicle information image (900) may include at least one vehicle warning image stored in the above-described memory (240) and a plurality of vehicle warning images output from the signal processing device (170).

[0184] Meanwhile, the signal processing device (170) can control to display at least one vehicle warning image stored in the memory (240) and a plurality of vehicle warning images output from the signal processing device (170) in the first area of ​​the first display (180).

[0185] The first region at this time may correspond to the cluster region where the cluster image is displayed.

[0186] Meanwhile, the signal processing device (170) can control a map image or a camera-based image to be displayed in the second area of ​​the first display (180).

[0187] The second area at this time may be an AVN area where an image corresponding to the AVN display is displayed.

[0188] In the drawing, it is exemplified that a map image (930) is displayed in the second area of ​​the first display (180).

[0189] FIG. 9 is a flowchart illustrating an operation method of a vehicle display device according to one embodiment of the present disclosure.

[0190] Referring to the drawing, a signal processing device (170) in a vehicle display device (100) according to one embodiment of the present disclosure displays a vehicle information image in a first area of ​​a display (180) (S1010).

[0191] For example, the signal processing device (170) can control the display (180) to display a vehicle information image including vehicle speed information, vehicle driving information, vehicle temperature information, vehicle warning image, or battery charging information in the first area, which is the cluster area of ​​the display (180).

[0192] Next, the signal processing device (170), while displaying a vehicle information image in the first area of ​​the display (180), determines whether the difference in brightness between the vehicle information image and the camera-based image to be displayed in the second area of ​​the display (180) is greater than or equal to a predetermined value (S1015), and if so, varies the brightness of the vehicle information image or the camera-based image (S1020). Accordingly, glare caused by the difference in brightness in the display (180) can be reduced.

[0193] For example, when the difference in brightness between the vehicle information image and the camera-based image exceeds a predetermined value during night driving, the signal processing device (170) can control the brightness of the camera-based image to increase in stages to prevent glare from the camera-based image. Accordingly, glare from the display (180) due to the difference in brightness can be reduced.

[0194] Meanwhile, the signal processing device (170) can control the brightness of the camera-based image to increase in stages when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image. Accordingly, glare caused by the brightness difference on the display (180) can be reduced.

[0195] Meanwhile, the signal processing device (170) can control the brightness of the vehicle information image to increase in stages when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the vehicle information image is higher than the brightness of the camera-based image. Accordingly, glare caused by the brightness difference on the display (180) can be reduced.

[0196] Meanwhile, in step 1015 (S1015), if the difference in brightness between the vehicle information image and the camera-based image to be displayed in the second area of ​​the display (180) is less than a predetermined value, the signal processing device (170) can control the display to be performed without varying the brightness of the vehicle information image and the camera-based image.

[0197] Meanwhile, the signal processing device (170) can vary the brightness of the vehicle information image or camera-based image based on the illumination around the vehicle.

[0198] For example, the signal processing device (170) may receive vehicle surrounding illumination information from the sensor device (760) and vary the brightness of a vehicle information image or camera-based image based on the vehicle surrounding illumination information. Accordingly, the brightness of the image may be varied in response to the vehicle surrounding illumination.

[0199] Specifically, the signal processing device (170) can control the brightness of the vehicle information image or camera-based image to increase as the ambient illumination of the vehicle increases.

[0200] Meanwhile, the signal processing device (170) can control the brightness of the vehicle information image or camera-based image to decrease as the ambient illumination of the vehicle decreases.

[0201] Meanwhile, the signal processing device (170) can vary a predetermined value based on the illumination around the vehicle.

[0202] For example, the signal processing device (170) can control the brightness to be lowered to a predetermined value to prevent glare, as the glare phenomenon during image display may become more severe as the ambient illumination of the vehicle decreases. Accordingly, glare due to differences in brightness in the display can be reduced in response to the ambient illumination of the vehicle.

[0203] Meanwhile, the signal processing device (170) can vary the brightness of the vehicle information image or camera-based image based on the setting input.

[0204] For example, the signal processing device (170) can receive a brightness setting input from the input unit (110) and vary the brightness of a vehicle information image or a camera-based image based on the brightness setting input. Accordingly, the brightness of the image can be varied in response to the brightness setting input.

[0205] Specifically, the signal processing device (170) can control the brightness of the vehicle information image or camera-based image to increase as the level of the brightness setting input increases.

[0206] Meanwhile, the signal processing device (170) can control the brightness of the vehicle information image or camera-based image to decrease as the level of the brightness setting input decreases.

[0207] Meanwhile, the signal processing device (170) can vary a predetermined value based on the brightness setting input.

[0208] For example, the signal processing device (170) can control the brightness setting input to be lowered to a predetermined level to prevent glare, since the lower the level of the brightness setting input, the more severe the glare phenomenon may be when displaying an image. Accordingly, it is possible to reduce glare due to differences in brightness in the display in response to the brightness setting input.

[0209] Meanwhile, the signal processing device (170) can control the brightness of the vehicle information image to increase more during the day than at night. Accordingly, the visibility of the vehicle information image can be secured during the day.

[0210] Meanwhile, the signal processing device (170) can control the brightness of the map image or camera image displayed in the second area to increase more during the day than at night. Accordingly, the visibility of the map image or camera image can be secured during the day.

[0211] Figures 10a to 22c are drawings referenced in the description of Figure 9.

[0212] First, FIG. 10a illustrates that a vehicle information image (910) is displayed in a first area (ARa) of a first display (180a), and a map image (930) is displayed in a second area (ARb).

[0213] For example, the signal processing device (170) can control the vehicle information image (910) to be displayed in the first area (ARa) of the first display (180a) and the map image (930) to be displayed in the second area (ARb) during daytime driving.

[0214] At this time, since the difference in brightness between the vehicle information image (910) and the map image (930) is less than a predetermined value, a glare phenomenon due to the difference in brightness between the vehicle information image (910) and the map image (930) does not occur during daytime driving.

[0215] Next, FIG. 10b illustrates that a vehicle information image (910) is displayed in a first area (ARa) of a first display (180a), and a camera-based image (940) is displayed in a second area (ARb).

[0216] For example, when the vehicle is parked after driving during the day, the signal processing device (170) can control the map image (930) displayed in the second area (ARb) to be switched to display a camera-based image while the vehicle information image (910) is displayed in the first area (ARa) of the first display (180a).

[0217] That is, the signal processing device (170) can control the vehicle information image (910) to be displayed in the first area (ARa) of the first display (180a) and the camera-based image (940) to be displayed in the second area (ARb) when the vehicle is parked during the daytime.

[0218] At this time, since the difference in brightness between the vehicle information image (910) and the camera-based image (940) is less than a predetermined value, a glare phenomenon due to the difference in brightness between the vehicle information image (910) and the camera-based image (940) does not occur during daytime parking.

[0219] Meanwhile, the signal processing device (170) can control the display of camera-related menu information (935) in a portion (ARb1) of the second portion (ARb), and the display of a camera-based image (940) including a camera image (942) and an around-view image (944) based on the camera image in another portion (ARb2) of the second portion (ARb). Accordingly, a graphical user interface for parking convenience can be provided.

[0220] Next, FIG. 10c illustrates that a vehicle information image (910b) is displayed in a first area (ARa) of a first display (180a), and a map image (930b) is displayed in a second area (ARb).

[0221] For example, the signal processing device (170) can control the vehicle information image (910b) to be displayed in the first area (ARa) of the first display (180a) and the map image (930b) to be displayed in the second area (ARb) during night driving.

[0222] Meanwhile, the signal processing device (170) can control the brightness of the vehicle information image (910b) displayed in the first area (ARa) of the first display (180a) during night driving to be lower than the brightness of the vehicle information image (910) displayed during daytime driving.

[0223] Meanwhile, the signal processing device (170) can control the brightness of the map image (930b) displayed in the second area (ARb) of the first display (180a) during night driving to be lower than the brightness of the map image (930) displayed during day driving.

[0224] At this time, since the difference in brightness between the vehicle information image (910b) and the map image (930b) is less than a predetermined value, the glare phenomenon due to the difference in brightness between the vehicle information image (910b) and the map image (930b) does not occur during night driving.

[0225] Next, FIG. 10d illustrates that a vehicle information image (910b) is displayed in a first area (ARa) of a first display (180a), and a camera-based image (940b) is displayed in a second area (ARb).

[0226] For example, when the vehicle is parked after driving at night, the signal processing device (170) can control the map image (930b) displayed in the second area (ARb) to be switched to display a camera-based image while the vehicle information image (910b) is displayed in the first area (ARa) of the first display (180a).

[0227] That is, the signal processing device (170) can control the vehicle information image (910b) to be displayed in the first area (ARa) of the first display (180a) and the camera-based image (940b) to be displayed in the second area (ARb) when the vehicle is parked at night.

[0228] At this time, the difference in brightness between the vehicle information image (910b) and the camera-based image (940b) may be greater than a predetermined value.

[0229] For example, if you are parking in a bright parking space rather than a dark parking space during night parking, the brightness of the camera-based image (940b) may be significantly higher than the brightness of the vehicle information image (910b).

[0230] Due to this difference in luminance, glare may occur in camera-based images (940b).

[0231] Accordingly, the signal processing device (170) according to the embodiment of the present disclosure, when a vehicle information image is displayed on a first area (ARa) of a display (180), and a difference in brightness between the vehicle information image and a camera-based image to be displayed on a second area (ARb) of the display (180) is greater than a predetermined value, changes the brightness of the vehicle information image or the camera-based image.

[0232] For example, the signal processing device (170) can control the brightness of the camera-based image to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value during night driving.

[0233] Figure 11 is a diagram illustrating a stepwise increase in the brightness of a camera-based image in a liquid crystal panel-based display.

[0234] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 11, to display a vehicle information image (910a) in a first area (ARa) of a liquid crystal panel-based display (180a) at a first point in time, and to display a map image (940b1) in a second area (ARb).

[0235] Meanwhile, the signal processing device (170) can be controlled to display a predetermined image (937b) between the first area (ARa) and the second area (ARb).

[0236] For example, the signal processing device (170) can set the brightness of the backlight (250) to 5% at the first point in time, as shown in (a) of FIG. 11, and control the transmittance blocking ratio of the liquid crystal panel (210a) to be 0%, 0%, and 0% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively.

[0237] That is, the signal processing device (170) can set the brightness of the backlight (250) to 5% at the first point in time, as shown in (a) of FIG. 11, and control the transmittance of the liquid crystal panel (210a) to be 100%, 100%, and 100% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively.

[0238] Accordingly, the liquid crystal panel-based display (180a) can display images (910b, 937b, 940b1) with a brightness of 5%, 5%, and 5% in the first area (ARa), the third area (ARm), and the second area (ARb), respectively.

[0239] Meanwhile, the signal processing device (170) displays a vehicle information image (910b) in the first area (ARa) of the display (180) and displays a map image (940b1) in the second area (ARb), and when the camera is activated and the image displayed in the second area (ARb) is switched to a camera-based image, it determines whether the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value.

[0240] For example, if the brightness of the vehicle information image displayed in the first area (ARa) corresponds to 5% and the brightness of the camera-based image to be displayed in the second area (ARb) corresponds to approximately 23%, and since it is greater than a predetermined value (e.g., 15%), the signal processing device (170) can vary the brightness of the vehicle information image or the camera-based image to prevent glare.

[0241] Specifically, the signal processing device (170) can set the brightness of the backlight (250) to 13% at the second point in time, as shown in (b) of FIG. 11, and control the transmission blocking ratio of the liquid crystal panel (210a) to be 8%, 8%, and 0% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively.

[0242] That is, the signal processing device (170) can set the brightness of the backlight (250) to 13% at the second point in time, as shown in (b) of FIG. 11, and control the transmittance of the liquid crystal panel (210a) to be 92%, 92%, and 100% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively.

[0243] Accordingly, the liquid crystal panel-based display (180a) can display images (910b, 937b, 940b2) with brightness of 5%, 5%, and 13% in the first area (ARa), the third area (ARm), and the second area (ARb), respectively.

[0244] Next, the signal processing device (170) can set the brightness of the backlight (250) to 18% at the third point in time, as shown in (c) of FIG. 11, and control the transmission blocking ratio of the liquid crystal panel (210a) to be 13%, 13%, and 0% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively.

[0245] That is, the signal processing device (170) can set the brightness of the backlight (250) to 18% at the third point in time, as shown in (c) of FIG. 11, and control the transmittance of the liquid crystal panel (210a) to be 87%, 87%, and 100% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively.

[0246] Accordingly, the liquid crystal panel-based display (180a) can display images (910b, 937b, 940b3) with brightness of 5%, 5%, and 18% in the first area (ARa), the third area (ARm), and the second area (ARb), respectively.

[0247] Next, the signal processing device (170) can set the brightness of the backlight (250) to 23% at the fourth time point, as shown in (d) of FIG. 11, and control the transmittance blocking ratio of the liquid crystal panel (210a) to be 18%, 18%, and 0% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively.

[0248] That is, the signal processing device (170) can set the brightness of the backlight (250) to 23% at the fourth point in time, as shown in (d) of FIG. 11, and control the transmittance of the liquid crystal panel (210a) to be 82%, 82%, and 100% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively.

[0249] Accordingly, the liquid crystal panel-based display (180a) can display images (910b, 937b, 940b4) with brightness of 5%, 5%, and 23% in the first area (ARa), the third area (ARm), and the second area (ARb), respectively.

[0250] Finally, the signal processing device (170) can be controlled to display images (910b, 937b, 940b1) with luminances of 5%, 5%, and 5% in the first region (ARa), the third region (ARm), and the second region (ARb), respectively, as in (a) of FIG. 11, and then, instead of immediately displaying images (910b, 937b, 940b4) with luminances of 5%, 5%, and 23%, respectively, as in (d) of FIG. 11, through the steps of (b) and (c) of FIG. 11, so as to display images (910b, 937b, 940b4) with luminances of 5%, 5%, and 23%, respectively, as in (d) of FIG. 11. Accordingly, glare can be reduced.

[0251] Meanwhile, in the drawing, the brightness of the backlight (250) is exemplified as being the same in the first region (ARa), the third region (ARm), and the second region (ARb), but alternatively, local dimming may also be performed.

[0252] That is, the signal processing device (170) can control the light of the backlight (250) arranged in the first area (ARa) or the second area (ARb) to be variable when the difference in brightness between the vehicle information image of the first area (ARa) of the display (180) and the camera-based image to be displayed in the second area (ARb) of the display (180) is greater than a predetermined value. Accordingly, glare caused by the difference in brightness in the display (180) can be reduced.

[0253] Meanwhile, the signal processing device (170) can control the light of the backlight (250) positioned in the second area (ARb) to increase in stages when the difference in brightness between the vehicle information image and the camera-based image exceeds a predetermined value during night driving. Accordingly, glare caused by the difference in brightness on the display (180) can be reduced.

[0254] Meanwhile, the signal processing device (170) can control the light of the backlight (250) arranged in the second area (ARb) to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image.

[0255] For example, the signal processing device (170) can control the brightness of the backlight (250) to be 5%, 5%, and 5% in the first region (ARa), the third region (ARm), and the second region (ARb) at a first point in time, and the transmittance of the liquid crystal panel (210a) to be 100%, 100%, and 100%, respectively.

[0256] Similarly, the signal processing device (170) can control the brightness of the backlight (250) in the first region (ARa), the third region (ARm), and the second region (ARb) to be 5%, 5%, and 13%, respectively, at a second time point, the brightness of the backlight (250) in the first region (ARa), the third region (ARm), and the second region (ARb) to be 5%, 5%, and 18%, respectively, at a fourth time point, the brightness of the backlight (250) in the first region (ARa), the third region (ARm), and the second region (ARb) to be 5%, 5%, and 23%, respectively.

[0257] Figure 12 is a drawing illustrating a stepwise increase in the brightness of a camera-based image in an organic light-emitting panel-based display.

[0258] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 12, to display a vehicle information image (910c) in a first area (ARc) of a display (180b) based on an organic light-emitting panel (210b) at a first point in time, and to display a map image (940c1) in a second area (ARd).

[0259] Meanwhile, the signal processing device (170) can be controlled to display a predetermined image (935c) between the first area (ARc) and the second area (ARd).

[0260] For example, as shown in (a) of FIG. 12, the signal processing device (170) can control the brightness of the first region (ARc), the third region (ARn), and the second region (ARd) of the organic light-emitting panel (210b) to be 5%, 5%, and 5%, respectively, at the first point in time.

[0261] Accordingly, the display (180b) based on the organic light-emitting panel (210b) can display images (910c, 935c, 940c1) with a brightness of 5%, 5%, and 5% in the first region (ARc), the third region (ARn), and the second region (ARd), respectively.

[0262] Meanwhile, the signal processing device (170) displays a vehicle information image (910c) in the first area (ARc) of the display (180b) and displays a map image (940c1) in the second area (ARd), and when the camera is activated and the image displayed in the second area (ARd) is switched to a camera-based image, it determines whether the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value.

[0263] For example, if the brightness of the vehicle information image displayed in the first area (ARc) corresponds to 5% and the brightness of the camera-based image to be displayed in the second area (ARd) corresponds to approximately 23%, and since it is greater than a predetermined value (e.g., 15%), the signal processing device (170) can vary the brightness of the vehicle information image or the camera-based image to prevent glare.

[0264] Specifically, the signal processing device (170) can control the brightness of the first region (ARc), the third region (ARn), and the second region (ARd) of the organic light-emitting panel (210b) to be 5%, 5%, and 13%, respectively, at the second point in time, as shown in (b) of FIG. 12.

[0265] Accordingly, the display (180b) based on the organic light-emitting panel (210b) can display images (910c, 935c, 940c2) with brightness of 5%, 5%, and 13% in the first region (ARc), the third region (ARn), and the second region (ARd), respectively.

[0266] Next, the signal processing device (170) can control the brightness of the first region (ARc), the third region (ARn), and the second region (ARd) of the organic light-emitting panel (210b) to be 5%, 5%, and 18%, respectively, at the third point in time, as shown in (c) of FIG. 12.

[0267] Accordingly, the display (180b) based on the organic light-emitting panel (210b) can display images (910c, 935c, 940c3) with brightness of 5%, 5%, and 18% in the first region (ARc), the third region (ARn), and the second region (ARd), respectively.

[0268] Next, the signal processing device (170) can control the brightness of the first region (ARc), the third region (ARn), and the second region (ARd) of the organic light-emitting panel (210b) to be 5%, 5%, and 23%, respectively, at the fourth time point, as shown in (d) of FIG. 12.

[0269] Accordingly, the display (180b) based on the organic light-emitting panel (210b) can display images (910c, 935c, 940c4) with brightness of 5%, 5%, and 23% in the first region (ARc), the third region (ARn), and the second region (ARd), respectively.

[0270] Finally, the signal processing device (170) can be controlled to display images (910c, 935c, 940c1) with luminances of 5%, 5%, and 5% in the first region (ARc), the third region (ARn), and the second region (ARd), as shown in (a) of FIG. 12, and then display images (910c, 935c, 940c4) with luminances of 5%, 5%, and 23%, respectively, as shown in (d) of FIG. 12, through the steps of (b) and (c) of FIG. 12, as shown in (d) of FIG. 12. Accordingly, glare can be reduced.

[0271] According to the above, the signal processing device (170) can vary the brightness of the vehicle information image or the camera-based image displayed on the organic light-emitting panel (210b) when the difference in brightness between the vehicle information image of the first area (ARa) of the display (180b) and the camera-based image to be displayed on the second area (ARb) of the display (180) is greater than a predetermined value.

[0272] Meanwhile, the signal processing device (170) can control the brightness of the camera-based image displayed on the organic light-emitting panel (210b) to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value during night driving.

[0273] Meanwhile, the signal processing device (170) can control the brightness of the camera-based image displayed on the organic light-emitting panel (210b) to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image.

[0274] FIG. 13a illustrates that a vehicle information image (910b) is displayed in a first area (ARa) of a first display (180a), and a map image (930b) is displayed in a second area (ARb).

[0275] For example, the signal processing device (170) can control the vehicle information image (910b) to be displayed in the first area (ARa) of the first display (180a) and the map image (930b) to be displayed in the second area (ARb) during night driving.

[0276] FIG. 13b illustrates that a camera-based image (940b) is displayed in a first area (ARa) of a first display (180a), and a vehicle information image (910b) is displayed in a second area (ARb).

[0277] Referring to the drawing, the signal processing device (170) can control the display of a camera-based image (940b) in the first area (ARa) of the first display (180a) and the display of a vehicle information image (910b) in the second area (Arb) when the vehicle is parked after driving at night.

[0278] Meanwhile, unlike the drawing, the signal processing device (170) can control the display of a camera-based image (940b) in the first area (ARa) of the first display (180a) and a map image (930b) in the second area (Arb) when the vehicle is parked after driving at night.

[0279] At this time, the difference in brightness between the camera-based image (940b) and the vehicle information image (910b) may be greater than a predetermined value.

[0280] For example, if you are parking in a bright parking space rather than a dark parking space during night parking, the brightness of the camera-based image (940b) may be significantly higher than the brightness of the vehicle information image (910b).

[0281] Accordingly, a signal processing device (170) according to another embodiment of the present disclosure, as shown in FIG. 13a, displays a vehicle information image (910b) in a first area (ARa) of a display (180a) and displays a map image (920b) in a second area (ARb), and, when the difference in brightness between a camera-based image to be displayed in place of the vehicle information image in the first area (ARa) and the map image or vehicle information image is greater than a predetermined value, changes the brightness of the camera-based image or the map image or the vehicle information image.

[0282] That is, when the difference in brightness between the map image (920b) and the camera-based image is greater than a predetermined value during night driving, the signal processing device (170) can control the display of a camera-based image with gradually increasing brightness, rather than displaying the camera-based image (940b) directly on the first area (ARa) of the first display (180a), as shown in FIG. 13b. Accordingly, glare due to the difference in brightness on the display (180a) can be reduced.

[0283] Figure 14 is a diagram illustrating a stepwise increase in the brightness of a camera-based image in a liquid crystal panel-based display.

[0284] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 14, to display a camera-based image (940b1) in a first area (ARa) of a liquid crystal panel-based display (180a) at a first point in time, and to display a vehicle information image (910b) in a second area (ARb).

[0285] For example, the signal processing device (170) can set the brightness of the backlight (250) to 5% at the first point in time, as shown in (a) of FIG. 14, and control the transmittance blocking ratio of the liquid crystal panel (210a) to be 0% and 0% in the first region (ARa) and the second region (ARb), respectively.

[0286] That is, the signal processing device (170) can set the brightness of the backlight (250) to 5% at the first point in time, as shown in (a) of FIG. 14, and control the transmittance of the liquid crystal panel (210a) to be 100% and 100% in the first region (ARa) and the second region (ARb), respectively.

[0287] Accordingly, the liquid crystal panel-based display (180a) can display images (940b1, 910b) with a brightness of 5% and 5% in the first area (ARa) and the second area (ARb), respectively.

[0288] Meanwhile, the signal processing device (170) can set the brightness of the backlight (250) to 13% at the second point in time, as shown in (b) of FIG. 14, and control the transmission blocking ratio of the liquid crystal panel (210a) to be 0% and 8% in the first region (ARa) and the second region (ARb), respectively.

[0289] That is, the signal processing device (170) can set the brightness of the backlight (250) to 13% at the second point in time, as shown in (b) of FIG. 14, and control the transmittance of the liquid crystal panel (210a) to be 100% and 92% in the first region (ARa) and the second region (ARb), respectively.

[0290] Accordingly, the liquid crystal panel-based display (180a) can display images (940b2, 910b) with a brightness of 13% and 5% in the first area (ARa) and the second area (ARb), respectively.

[0291] Next, the signal processing device (170) can set the brightness of the backlight (250) to 18% at the third point in time, as shown in (c) of FIG. 14, and control the transmittance blocking ratio of the liquid crystal panel (210a) to be 0% and 13% in the first region (ARa) and the second region (ARb), respectively.

[0292] That is, the signal processing device (170) can set the brightness of the backlight (250) to 18% at the third point in time, as shown in (c) of FIG. 14, and control the transmittance of the liquid crystal panel (210a) to be 100% and 87% in the first region (ARa) and the second region (ARb), respectively.

[0293] Accordingly, the liquid crystal panel-based display (180a) can display images (940b3, 910b) with a brightness of 18% and 5% in the first area (ARa) and the second area (ARb), respectively.

[0294] Next, the signal processing device (170) can set the brightness of the backlight (250) to 23% at the fourth time point, as shown in (d) of FIG. 14, and control the transmittance blocking ratio of the liquid crystal panel (210a) to be 0% and 18% in the first region (ARa) and the second region (ARb), respectively.

[0295] That is, the signal processing device (170) can set the brightness of the backlight (250) to 23% at the fourth point in time, as shown in (d) of FIG. 14, and control the transmittance of the liquid crystal panel (210a) to be 100% and 82% in the first region (ARa) and the second region (ARb), respectively.

[0296] Accordingly, the liquid crystal panel-based display (180a) can display images (940b4, 910b) with a brightness of 23% and 5% in the first area (ARa) and the second area (ARb), respectively.

[0297] Finally, the signal processing device (170) can be controlled to display images (940b1, 910b) with luminances of 5% and 5% in the first area (ARa) and the second area (ARb), respectively, as in (a) of Fig. 14, and then display images (940b4, 910b) with luminances of 23% and 4%, respectively, as in (d) of Fig. 14, rather than immediately displaying images (940b4, 910b) with luminances of 23% and 5%, respectively, as in (d) of Fig. 14, through the steps of (b) and (c) of Fig. 14. Accordingly, glare can be reduced.

[0298] Meanwhile, in the drawing, the brightness of the backlight (250) is exemplified as being the same in the first area (ARa) and the second area (ARb), but alternatively, local dimming may also be performed.

[0299] That is, the signal processing device (170) can control the light of the backlight (250) arranged in the first area (ARa) or the second area (ARb) to be variable when the difference in brightness between the camera-based image to be displayed in the first area (ARa) of the display (180) and the vehicle information image to be displayed in the second area (ARb) of the display (180) is greater than a predetermined value. Accordingly, glare caused by the difference in brightness in the display (180) can be reduced.

[0300] Meanwhile, the signal processing device (170) can control the light of the backlight (250) positioned in the first area (ARa) to increase in stages when the difference in brightness between the vehicle information image and the camera-based image exceeds a predetermined value during night driving. Accordingly, glare caused by the difference in brightness on the display (180) can be reduced.

[0301] Meanwhile, the signal processing device (170) can control the light of the backlight (250) arranged in the first area (ARa) to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image.

[0302] For example, the signal processing device (170) can control the brightness of the backlight (250) to be 5% and 5% in the first region (ARa) and the second region (ARb) at a first point in time, and the transmittance of the liquid crystal panel (210a) to be 100% and 100%, respectively.

[0303] Similarly, the signal processing device (170) can control the brightness of the backlight (250) in the first region (ARa) and the second region (ARb) to be 13% and 5%, respectively, at a second time point, the brightness of the backlight (250) in the first region (ARa) and the second region (ARb) to be 18% and 5%, respectively, at a third time point, and the brightness of the backlight (250) in the first region (ARa) and the second region (ARb) to be 23% and 5%, respectively, at a fourth time point.

[0304] Figure 15 is a drawing illustrating a stepwise increase in the brightness of a camera-based image in an organic light-emitting panel-based display.

[0305] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 15, to display a camera-based image (940c1) in a first area (ARc) of a display (180b) based on an organic light-emitting panel (210b) at a first point in time, and to display a vehicle information image (910c) in a second area (ARd).

[0306] For example, the signal processing device (170) can control the brightness of the first region (ARc) and the second region (ARd) of the organic light-emitting panel (210b) to be 5% and 5%, respectively, at the first point in time, as shown in (a) of FIG. 15.

[0307] Accordingly, the display (180b) based on the organic light-emitting panel (210b) can display images (940c1, 910c) with a brightness of 5% and 5% in the first area (ARc) and the second area (ARd), respectively.

[0308] Meanwhile, the signal processing device (170) can control the brightness of the first region (ARc) and the second region (ARd) of the organic light-emitting panel (210b) to be 13% and 5%, respectively, at the second time point, as shown in (b) of FIG. 15.

[0309] Accordingly, the display (180b) based on the organic light-emitting panel (210b) can display images (940c2, 910c) with a brightness of 13% and 5% in the first region (ARc) and the second region (ARd), respectively.

[0310] Next, the signal processing device (170) can control the brightness of the first region (ARc) and the second region (ARd) of the organic light-emitting panel (210b) to be 18% and 5%, respectively, at the third point in time, as shown in (c) of FIG. 15.

[0311] Accordingly, the display (180b) based on the organic light-emitting panel (210b) can display images (940c3, 910c) with a brightness of 18% and 5% in the first region (ARc) and the second region (ARd), respectively.

[0312] Next, the signal processing device (170) can control the brightness of the first region (ARc) and the second region (ARd) of the organic light-emitting panel (210b) to be 23% and 5%, respectively, at the fourth time point, as shown in (d) of FIG. 15.

[0313] Accordingly, the display (180b) based on the organic light-emitting panel (210b) can display images (940c4, 910c) with a brightness of 23% and 5% in the first region (ARc) and the second region (ARd), respectively.

[0314] Finally, the signal processing device (170) can be controlled to display images (940c1, 910c) with luminances of 5% and 5% in the first area (ARc) and the second area (ARd), respectively, as in (a) of FIG. 15, and then display images (940c4, 910c) with luminances of 23% and 4%, respectively, as in (d) of FIG. 15, rather than immediately displaying images (940c4, 910c) with luminances of 23% and 4%, respectively, as in (d) of FIG. 15, through the steps of (b) and (c) of FIG. 15. Accordingly, glare can be reduced.

[0315] According to the above, the signal processing device (170) can vary the brightness of the vehicle information image or the camera-based image displayed on the organic light-emitting panel (210b) when the difference in brightness between the camera-based image to be displayed on the first area (ARa) of the display (180b) and the vehicle information image to be displayed on the second area (ARb) of the display (180) is greater than a predetermined value.

[0316] Meanwhile, the signal processing device (170) can control the brightness of the camera-based image displayed on the organic light-emitting panel (210b) to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value during night driving.

[0317] Meanwhile, the signal processing device (170) can control the brightness of the camera-based image displayed on the organic light-emitting panel (210b) to increase in steps when the difference in brightness between the vehicle information image and the camera-based image is greater than a predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image. Accordingly, glare caused by the brightness difference on the display (180b) can be reduced.

[0318] Fig. 16a is a drawing showing an example of luminance variation of a portion of each area in a liquid crystal panel-based display (180a).

[0319] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 16a, to display a vehicle information image (910b), a predetermined image (937b1), and a map image (1540b1) with a brightness of 5%, 5%, and 5%, respectively, in the first area (ARa), the third area (Arm), and the second area (ARb) of the liquid crystal panel-based display (180a) at a first point in time.

[0320] Next, the signal processing device (170) can control, as shown in (b) of FIG. 16a, to display a vehicle information image (910b), a predetermined image (937b4), and a map image (1540b4) with a brightness of 5%, 23%, and 23%, respectively, in the first area (ARa), the third area (Arm), and the second area (ARb) of the liquid crystal panel-based display (180a) after the first point in time.

[0321] At this time, the signal processing device (170) can control the brightness of the predetermined image (937b4) and the map image (1540b4) displayed in the third area (Arm) and the second area (ARb) to increase stepwise, without directly switching from (a) of FIG. 16a to (b) of FIG. 16a.

[0322] For example, the signal processing device (170) can control to display a vehicle information image (910b), a predetermined image (937b2), and a map image (1540b2) having a brightness of 5%, 13%, and 13%, respectively, in the first area (ARa), the third area (Arm), and the second area (ARb) of the liquid crystal panel-based display (180a) at a second point in time after the first point in time, and can control to display a vehicle information image (910b), a predetermined image (937b3), and a map image (1540b3) having a brightness of 5%, 18%, and 18%, respectively, in the first area (ARa), the third area (Arm), and the second area (ARb) of the liquid crystal panel-based display (180a) at a third point in time after the second point in time, and can control to display them, as in (b) of FIG. 16a, at a fourth point in time after the third point in time. Accordingly, glare caused by the difference in brightness in the display (180a) can be reduced.

[0323] Fig. 16b is a drawing showing an example of luminance variation of a portion of each area in an organic light-emitting panel-based display (180b).

[0324] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 16b, to display a vehicle information image (910b), a predetermined image (937b1), and a map image (1540b1) with a brightness of 5%, 5%, and 5%, respectively, in the first area (ARc), the third area (ARn), and the second area (ARd) of the organic light-emitting panel-based display (180b) at a first point in time.

[0325] Next, the signal processing device (170) can control the display of a vehicle information image (910b), a predetermined image (937b4), and a map image (1540b4) with a brightness of 5%, 23%, and 23%, respectively, in the first area (ARc), the third area (ARn), and the second area (ARd) of the organic light-emitting panel-based display (180b), after the first point in time, as shown in (b) of FIG. 16b.

[0326] At this time, the signal processing device (170) can control the brightness of the predetermined image (937b4) and the map image (1540b4) displayed in the third area (ARn) and the second area (ARd) to increase stepwise, without directly switching from (a) of FIG. 16b to (b) of FIG. 16b.

[0327] Fig. 17a is a drawing showing another example of luminance variation of a portion of each area in a liquid crystal panel-based display (180a).

[0328] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 17a, to display a vehicle start-off image (1610b1) having a brightness of 5% in the first area (ARa) among the first area (ARa), the third area (Arm), and the second area (ARb) of the liquid crystal panel-based display (180a) at a first point in time.

[0329] Next, the signal processing device (170) can control the display (180a) based on the liquid crystal panel to display vehicle charging information images (1610b4, 1635b4, 1640b4) having a brightness of 23%, 23%, and 23%, respectively, in the first area (ARa), the third area (Arm), and the second area (ARb) of the display (180a) when the vehicle engine is turned on after the first time point, as shown in (b) of FIG. 17a.

[0330] At this time, the signal processing device (170) can control the brightness of the vehicle charging information images (1610b1, 1635b1, 1640b1) displayed in the first area (ARa), the third area (Arm), and the second area (ARb) to increase in steps, without directly switching from (a) of FIG. 17a to (b) of FIG. 17a.

[0331] Fig. 17b is a drawing showing another example of luminance variation of a portion of each area in an organic light-emitting panel-based display (180b).

[0332] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 17b, to display a vehicle start-off image (1610c1) with a brightness of 5% in the first area (ARc) among the first area (ARc), the third area (ARn), and the second area (ARd) of the organic light-emitting panel-based display (180b) at a first point in time.

[0333] Next, the signal processing device (170) can control the display (180b) based on the organic light-emitting panel to display vehicle charging information images (1610c4, 1635c4, 1640c4) having a brightness of 23%, 23%, and 23%, respectively, in the first area (ARc), the third area (ARn), and the second area (ARd) of the display (180b) when the vehicle engine is turned on after the first time point, as shown in (b) of FIG. 17b.

[0334] At this time, the signal processing device (170) can control the brightness of the vehicle charging information images (1610c1, 1635c1, 1640c1) displayed in the first area (ARc), the third area (ARn), and the second area (ARd) to increase in steps, without directly switching from (a) of FIG. 17b to (b) of FIG. 17b.

[0335] FIG. 18a is a drawing showing another example of luminance variation of a portion of each area in a liquid crystal panel-based display (180a).

[0336] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 18a, to display a vehicle start-off image (1710b1) having a brightness of 5% in the first area (ARa) among the first area (ARa), the third area (Arm), and the second area (ARb) of the liquid crystal panel-based display (180a) at a first point in time.

[0337] Next, the signal processing device (170) can control the display (180a) based on the liquid crystal panel to display a vehicle information image (1710b4), a predetermined image (1735b4), and a map image (1740b4) with a brightness of 5%, 5%, and 5%, respectively, in the first area (ARa), the third area (Arm), and the second area (ARb) of the display (180a) when the vehicle engine is turned on after the first time point, as shown in (b) of FIG. 18a.

[0338] At this time, the signal processing device (170) can be controlled to immediately switch from (a) of Fig. 18a to (b) of Fig. 18a.

[0339] FIG. 18b is a drawing showing another example of luminance variation of a portion of each area in an organic light-emitting panel-based display (180b).

[0340] Referring to the drawing, the signal processing device (170) can control, as shown in (a) of FIG. 18b, to display a vehicle start-off image (1710c1) with a brightness of 5% in the first area (ARc) among the first area (ARc), the third area (ARn), and the second area (ARd) of the organic light-emitting panel-based display (180b) at a first point in time.

[0341] Next, the signal processing device (170) can control the display (180b) based on the organic light-emitting panel to display a vehicle information image (1710c4), a predetermined image (1735c4), and a map image (1740c4) with a brightness of 5%, 5%, and 5%, respectively, in the first area (ARc), the third area (ARn), and the second area (ARd) of the display (180b) after the first time point, when the vehicle engine is turned on, as shown in (b) of FIG. 18b.

[0342] At this time, the signal processing device (170) can be controlled to immediately switch from (a) of Fig. 18b to (b) of Fig. 18b.

[0343] FIG. 19a is a drawing showing another example of luminance variation of a portion of each area in a liquid crystal panel-based display (180a).

[0344] Referring to the drawing, the signal processing device (190) can control, as shown in (a) of FIG. 19a, to display a vehicle start-off image (1810b1) having a brightness of 5% in the first area (ARa) among the first area (ARa), the third area (Arm), and the second area (ARb) of the liquid crystal panel-based display (180a) at a first point in time.

[0345] Next, the signal processing device (190) can control the display (180a) based on the liquid crystal panel to display a vehicle charging information image (1810b4) and a clock image (1835b4) with a brightness of 5% and 23%, respectively, in the first area (ARa) and the third area (Arm) of the display (180a) based on the liquid crystal panel, when the vehicle engine is turned on after the first time point, as shown in (b) of FIG. 19a.

[0346] At this time, the signal processing device (190) can control the brightness of the clock image (1835b4) displayed in the third area (Arm) among the first area (ARa), the third area (Arm), and the second area (ARb) to increase stepwise, without directly switching from (a) of FIG. 19a to (b) of FIG. 19a.

[0347] FIG. 19b is a drawing showing another example of luminance variation of a portion of each area in an organic light-emitting panel-based display (180b).

[0348] Referring to the drawing, the signal processing device (190) can control, as shown in (a) of FIG. 19b, to display a vehicle start-off image (1810c1) with a brightness of 5% in the first area (ARc) among the first area (ARc), the third area (ARn), and the second area (ARd) of the organic light-emitting panel-based display (180b) at a first point in time.

[0349] Next, the signal processing device (190) can control the display (180b) based on the organic light-emitting panel to display a vehicle charging information image (1810c4) and a clock image (1835c4) with a brightness of 5% and 23%, respectively, in the first area (ARc) and the third area (ARn) of the display (180b) when the vehicle engine is turned on after the first time point, as shown in (b) of FIG. 19b.

[0350] At this time, the signal processing device (190) can control the brightness of the clock image (1835c4) displayed in the third area (Arn) among the first area (ARc), the third area (ARn), and the second area (ARd) to increase stepwise, without directly switching from (a) of FIG. 19b to (b) of FIG. 19b.

[0351] FIG. 20 is an example of an internal block diagram of a signal processing device according to an embodiment of the present disclosure.

[0352] Referring to the drawings, a vehicle display device (1000b) according to one embodiment of the present disclosure includes a signal processing device (170).

[0353] In the drawing, a signal processing device (170a) executes a hypervisor (505) and, on the hypervisor (505), executes a plurality of virtual machines (820 to 850) according to the automotive safety integrity level (Automotive SIL; ASIL).

[0354] Meanwhile, a signal processing device (170) according to one embodiment of the present disclosure may be equipped with a plurality of processor cores (CR1 to CRn, MR).

[0355] Meanwhile, some (CR1 to CRn) of the multiple processor cores (CR1 to CRn, MR) operate based on a hypervisor (505), and the hypervisor can execute multiple virtual machines (820 to 850).

[0356] Meanwhile, some other (MR) of the plurality of processor cores (CR1 to CRn, MR) can execute an operating system (805a) corresponding to the first safety level, which is the highest safety level, such as ASIL D, without executing a hypervisor (505), and execute a fourth virtual machine (840) on the operating system (805a).

[0357] Meanwhile, the fourth virtual machine (840) can execute an application corresponding to a first safety level, such as ASIL D, or a microservice (843) corresponding to an application corresponding to the first safety level. Accordingly, the application or microservice (843) corresponding to the first safety level can be stably performed.

[0358] Meanwhile, among the plurality of processor cores (CR1 to CRn, MR), the first processor core (CR1) can execute a hypervisor (505), execute an operating system (805b) on the hypervisor (505), and execute a first virtual machine (850) on the operating system (805b).

[0359] Meanwhile, the first virtual machine (850) can execute an application corresponding to a second safety level, such as ASIL B, or a microservice (853a) corresponding to an application corresponding to the second safety level. Accordingly, the application or microservice (853a) corresponding to the second safety level can be stably performed.

[0360] Meanwhile, the second safety level may be a lower safety level than the first safety level.

[0361] Meanwhile, among the plurality of processor cores (CR1 to CRn, MR), the second processor core (CR2) and the third processor core (CR3) can execute a hypervisor (505), execute an operating system (805c) corresponding to a second safety level such as ASIL B on the hypervisor (505), and execute a second virtualization machine (830) on the operating system (805c).

[0362] Meanwhile, the second virtual machine (830) can execute a third application corresponding to a second safety level, such as ASIL B, or a microservice (833a to 833c) corresponding to the third application corresponding to the second safety level, on an operating system (805c) corresponding to a second safety level. Accordingly, the application or microservice (833a to 833c) corresponding to the second safety level can be stably performed.

[0363] Meanwhile, among the plurality of processor cores (CR1 to CRn, MR), the remaining processor cores (CR4 to CRn) can execute a hypervisor (505), execute an operating system (805d) corresponding to a third safety level such as QM on the hypervisor (505), and execute a third virtualization machine (820) on the operating system (805d).

[0364] Meanwhile, the third virtual machine (820) can execute a fourth application corresponding to the third safety level, such as QM, or a microservice (823a to 823b) corresponding to the fourth application, on an operating system (805d) corresponding to the third safety level, which is lower than the second safety level. Accordingly, the application or microservice (823a to 823b) corresponding to the third safety level can be stably performed.

[0365] Figures 21a to 21c are drawings for reference in the description of the operation of the signal processing device of Figure 20.

[0366] Figure 21a illustrates displaying an image in each area of ​​a liquid crystal panel-based display (180a).

[0367] Referring to the drawing, the signal processing device (170) can display a vehicle information image in a first area (ARa) of the display (180a) and display a camera-based image in a second area.

[0368] Meanwhile, the signal processing device (170) can control a second layer (2010) including a vehicle warning image to be overlaid on a first layer (2020) including surrounding vehicle information when displaying a vehicle information image on the first area (ARa) of the display (180a).

[0369] Meanwhile, the signal processing device (170) can control the safety level of the first layer (2020) including surrounding vehicle information and the safety level of the second layer (2010) including vehicle warning images to be different.

[0370] In particular, the signal processing device (170) can control the safety level of the second layer (2010) including the vehicle warning image to be higher than the safety level of the first layer (2020) including the surrounding vehicle information.

[0371] Specifically, the first layer (2020) including surrounding vehicle information may be generated by the fourth virtualization machine (840) of the signal processing device (170) in response to the first safety level, and the second layer (2010) including vehicle warning images may be generated by the first virtualization machine (850) or the second virtualization machine (830) in response to the second safety level. Accordingly, layers may be displayed separately according to safety levels.

[0372] Meanwhile, the signal processing device (170) can control the first layer (2020) and the second layer (2010) to be overlaid on the third layer (2030) including vehicle speed information, etc.

[0373] Meanwhile, the signal processing device (170) can control the second layer (2010) and the first layer (2020) to be overlaid on the fourth layer (2050) including a camera-based image.

[0374] Meanwhile, the signal processing device (170) can control the fifth layer (2040) including camera-related menu information to be overlaid on the fourth layer (2050) including the camera image and the camera-based image such as the around view image when displaying the camera-based image in the second area (ARb) of the display (180a).

[0375] Meanwhile, the fourth layer (2050) including camera-based images may be generated by the second virtualization machine (830) of the signal processing device (170), and the fifth layer (2040) including camera-related menu information may be generated by the third virtualization machine (840). Accordingly, the layers can be displayed separately.

[0376] Finally, on the backlight (2060), the fourth layer (2050), the fifth layer (2040), the third layer (2030), the first layer (2020), and the second layer (2010) can be sequentially overlaid, respectively.

[0377] Figure 21b illustrates displaying an image in each area of ​​an organic light-emitting panel-based display (180b).

[0378] Referring to the drawing, the signal processing device (170) can display a vehicle information image in a first area (ARc) of the display (180b) and display a camera-based image in a second area.

[0379] Meanwhile, the signal processing device (170) can control a second layer (2010c) including a vehicle warning image to be overlaid on a first layer (2020c) including surrounding vehicle information when displaying a vehicle information image in the first area (ARc) of the display (180b).

[0380] Meanwhile, the signal processing device (170) can control the safety level of the first layer (2020c) including surrounding vehicle information and the safety level of the second layer (2010c) including vehicle warning images to be different.

[0381] In particular, the signal processing device (170) can control the safety level of the second layer (2010c) including the vehicle warning image to be higher than the safety level of the first layer (2020c) including the surrounding vehicle information.

[0382] Specifically, the first layer (2020c) including surrounding vehicle information may be generated by the fourth virtualization machine (840) of the signal processing device (170) in response to the first safety level, and the second layer (2010c) including the vehicle warning image may be generated by the first virtualization machine (850) or the second virtualization machine (830) in response to the second safety level. Accordingly, layers may be displayed separately according to the safety level.

[0383] Meanwhile, the signal processing device (170) can control the first layer (2020c) and the second layer (2010c) to be overlaid on the third layer (2030c) including vehicle speed information, etc.

[0384] Meanwhile, the signal processing device (170) can control a fifth layer (2040c) including camera-related menu information to be overlaid on a fourth layer (2050c) including camera-based images such as camera images and around-view images when displaying camera-based images in the second area (ARd) of the display (180b).

[0385] Meanwhile, the fourth layer (2050c) including camera-based images may be generated by the second virtualization machine (830) of the signal processing device (170), and the fifth layer (2040c) including camera-related menu information may be generated by the third virtualization machine (840). Accordingly, the layers can be displayed separately.

[0386] Figure 21c is a diagram illustrating an operating system for multiple displays.

[0387] Referring to the drawing, the signal processing device (170) executes a first operating system (OSa) for the first display (180) and can control the display of corresponding images in the first area (ARa), the third area (ARm), and the second area (ARb) through a plurality of virtual machines, etc.

[0388] Meanwhile, the signal processing device (170) can control the second display (180h) to execute a second operating system (OSh) and display an image including vehicle speed information, etc.

[0389] Meanwhile, the first operating system (OSa) and the second operating system (OSh) may be the same as in the drawing, but are not limited thereto, and may be different from each other.

[0390] Fig. 22 is another example of an internal block diagram of the first display of Fig. 3.

[0391] Below, the first display (180b) will be described.

[0392] Referring to the drawing, a display (180b) based on an organic light-emitting panel may include an organic light-emitting panel (210b), a first interface unit (230), a second interface unit (231), a timing controller (232b), a gate driver (234b), a data driver (236b), a memory (240), a power supply unit (290), a current detector (510b), etc.

[0393] The display (180b) receives a video signal (Vd), a first DC power source (V1), and a second DC power source (V2), and can display a predetermined image based on the video signal (Vd).

[0394] Meanwhile, the first interface unit (230) within the display (180b) can receive a video signal (Vd) and a first direct current power source (V1) from the signal processing device (170).

[0395] Here, the first DC power supply (V1) can be used for the operation of the power supply unit (290) and the timing controller (232b) within the display (180b).

[0396] Next, the second interface unit (231) can receive a second DC power supply (V2) from an external power supply unit (190). Meanwhile, the second DC power supply (V2) can be input to a data driving unit (236b) within the display (180b).

[0397] The timing controller (232b) can output a data driving signal (Sda) and a gate driving signal (Sga) based on a video signal (Vd).

[0398] For example, when the first interface unit (230) converts an input image signal (Vd) and outputs a converted image signal (va1), the timing controller (232b) can output a data driving signal (Sda) and a gate driving signal (Sga) based on the converted image signal (va1).

[0399] The timing controller (232) can receive, in addition to the video signal (Vd) from the signal processing device (170), a control signal, a vertical synchronization signal (Vsync), etc.

[0400] In addition, the timing controller (232) can output a gate drive signal (Sga) for the operation of the gate drive unit (234b) and a data drive signal (Sda) for the operation of the data drive unit (236b) based on a control signal, a vertical synchronization signal (Vsync), etc., in addition to a video signal (Vd).

[0401] The data driving signal (Sda) at this time may be a data driving signal for driving RGB subpixels when the panel (210) has RGB subpixels.

[0402] Meanwhile, the data driving signal (Sda) may be a data driving signal for driving RGBW subpixels when the panel (210) has RGBW subpixels.

[0403] Meanwhile, the timing controller (232b) can further output a control signal (Cs) to the gate driver (234b).

[0404] The gate driving unit (234b) and the data driving unit (236b) supply scan signals and data signals to the organic light-emitting panel (210b) through the gate line (GL) and the data line (DL), respectively, in response to the gate driving signal (Sga) and the data driving signal (Sda) from the timing controller (232b). Accordingly, the organic light-emitting panel (210b) displays a predetermined image.

[0405] Meanwhile, the organic light-emitting panel (210b) may include an organic light-emitting layer, and in order to display an image, a plurality of gate lines (GL) and data lines (DL) may be arranged in a matrix form to cross each pixel corresponding to the organic light-emitting layer.

[0406] Meanwhile, the gate line (GL) may also be called a scan line because a scan signal is input.

[0407] Meanwhile, the data driving unit (236b) can output a data signal to the organic light-emitting panel (210b) based on the second direct current power supply (V2) from the second interface unit (231).

[0408] The power supply unit (290) can supply various power sources to the gate driver unit (234b), the data driver unit (236b), the timing controller (232b), etc.

[0409] The current detection unit (510b) can detect the current flowing in the subpixel of the panel (210). The detected current can be input to a processor (270) or the like for cumulative current calculation.

[0410] Meanwhile, the timing controller (232b), gate driver (234b), data driver (236b), and memory (240) in the drawing can be implemented as a single integrated circuit (IC).

[0411] Accordingly, the timing controller (232b), gate driver (234b), data driver (236b), and memory (240) may be named a drive control unit (285b).

[0412] Meanwhile, the drive control unit (285b) may include a buffer (not shown) that stores frame data.

[0413] In particular, the timing controller (232b) in the drive control unit (285b) can output a gate drive signal and a data drive signal based on frame data stored in a buffer (not shown) or memory (240).

[0414] The timing controller (232b) or the driving control unit (285b) can perform various controls within the display (180b). For example, it can control the gate driving unit (234b), the data driving unit (236b), the timing controller (232b), etc.

[0415] Meanwhile, the timing controller (232b) or the driving control unit (285b) can receive information on the current flowing in the subpixel of the panel (210) from the current detection unit (510b).

[0416] In addition, the timing controller (232b) or the driving control unit (285b) can calculate the accumulated current of the subpixels of each panel (210) based on the current information flowing in the subpixels of the panel (210). The calculated accumulated current can be stored in the memory (240).

[0417] Meanwhile, the timing controller (232b) or the driving control unit (285b) can determine that burn-in has occurred when the accumulated current of the subpixels of each panel (210) exceeds the allowable value.

[0418] For example, the timing controller (232b) or the driving control unit (285b) may determine that a subpixel of each panel (210) has a burnt-in subpixel if the accumulated current of the subpixel is 300,000 A or more.

[0419] Meanwhile, the timing controller (232b) or the driving control unit (285b) may determine that a subpixel among the subpixels of each panel (210) is a subpixel predicted to be subject to burn-in when the accumulated current of the subpixel approaches the allowable value.

[0420] Meanwhile, the timing controller (232b) or the driving control unit (285b) can determine the subpixel with the largest accumulated current as the burn-in prediction subpixel based on the current detected by the current detection unit (510b).

[0421] Meanwhile, the timing controller (232b) or the driving control unit (285b) may predict current information to flow in a subpixel based on an image signal from the signal processing device (170), regardless of the operation of the current detection unit (510b), and may determine a subpixel in which burn-in is predicted based on the predicted current information.

[0422] Figures 23a to 23d are drawings for reference in the description of the organic light-emitting panel of Figure 22.

[0423] First, FIG. 23a is a drawing showing an example of a pixel in an organic light-emitting panel (210b).

[0424] Referring to the drawing, the organic light-emitting panel (210b) may have a plurality of scan lines (Scan 1 to Scan n) and a plurality of data lines (R1, G1, B1 to Rm, Gm, Bm) intersecting therewith.

[0425] Meanwhile, a pixel (subpixel) is defined in the intersection area of ​​the scan line and the data line within the organic light-emitting panel (210b). The drawing illustrates a pixel having RGB subpixels (SR1, SG1, SB1).

[0426] Meanwhile, red organic light-emitting diodes, green organic light-emitting diodes, and blue organic light-emitting diodes are placed in the RGB subpixels (SR1, SG1, SB1), respectively.

[0427] Next, FIG. 23b is a drawing showing another example of pixels within the panel (210).

[0428] Referring to the drawing, the panel (210) may have a plurality of scan lines (Scan 1 to Scan n) and a plurality of data lines (R1, G1, B1, W1 to Rm, Gm, Bm, Wm) intersecting therewith.

[0429] Meanwhile, a pixel (subpixel) is defined in the intersection area of ​​a scan line and a data line within the panel (210). In the drawing, a pixel (Pixel) having RGBW subpixels (SR1, SG1, SB1, SW1) is illustrated.

[0430] Meanwhile, red organic light-emitting diodes, green organic light-emitting diodes, blue organic light-emitting diodes, and white organic light-emitting diodes are placed in the RGBW subpixels (SR1, SG1, SB1, SW1), respectively.

[0431] FIG. 23c illustrates an example of a circuit of a sub-pixel within a pixel of the panel of FIG. 23a or FIG. 23b.

[0432] Referring to the drawing, the sub-pixel circuit (CRTm) may be an active type and include a scan switching element (SW1), a storage capacitor (Cst), a driving switching element (SW2), and an organic light-emitting layer (OLED).

[0433] The scan switching element (SW1) is turned on according to an input scan signal (Vdscan) by connecting a scan line to the gate terminal. When turned on, the input data signal (Vdata) is transmitted to the gate terminal of the driving switching element (SW2) or one end of the storage capacitor (Cst).

[0434] The storage capacitor (Cst) is formed between the gate terminal and the source terminal of the driving switching element (SW2), and stores a predetermined difference between the data signal level transmitted to one end of the storage capacitor (Cst) and the DC voltage (VDD) level transmitted to the other end of the storage capacitor (Cst).

[0435] For example, if the data signal has different levels according to the PAM (Plus Amplitude Modulation) method, the power level stored in the storage capacitor (Cst) changes depending on the level difference of the data signal (Vdata).

[0436] As another example, when the data signal has different pulse widths according to the Pulse Width Modulation (PWM) method, the power level stored in the storage capacitor (Cst) changes depending on the difference in the pulse width of the data signal (Vdata).

[0437] The driving switching element (SW2) is turned on according to the power level stored in the storage capacitor (Cst). When the driving switching element (SW2) is turned on, a driving current (IOLED) proportional to the stored power level flows to the organic light-emitting layer (OLED). Accordingly, the organic light-emitting layer (OLED) performs a light-emitting operation.

[0438] The organic light-emitting layer (OLED) includes an emission layer (EML) corresponding to a subpixel, and may include at least one of a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL), and may also include a hole blocking layer.

[0439] Meanwhile, in the drawing, a case in which a p-type MOSFET is used as the scan switching element (SW1) and the driving switching element (SW2) is exemplified, but an n-type MOSFET, or other switching elements such as a JFET, IGBT, or SIC may also be used.

[0440] Meanwhile, a pixel is a hold-type element that continues to emit light in an organic light-emitting layer (OLED) after a scan signal is applied during a unit display period, specifically, during a unit frame.

[0441] Meanwhile, the sub-pixel circuit (CRTm) in the drawing is driven by an active matrix method.

[0442] FIG. 23d illustrates another example of a circuit of a sub-pixel within a pixel of the panel of FIG. 23a or FIG. 23b.

[0443] Referring to the drawing, the organic light-emitting sub-pixel circuit (CRTm) may be of a passive type and may only include an organic light-emitting diode (LED) without a separate switching element.

[0444] As shown in the drawing, the anode of the organic light-emitting diode (LED) is connected to a data line, so that a data signal (Vdata) can be input, and the cathode of the organic light-emitting diode (LED) is connected to a scan line, so that a scan signal (Vscan) can be input.

[0445] Meanwhile, organic light-emitting diodes can emit organic light or non-organic light based on multiple sub-frames in a passive matrix manner.

[0446] Meanwhile, unlike the drawing, the anode of the organic light-emitting diode (LED) may be connected to a scan line, so that a scan signal (Vscan) may be input, and the cathode of the organic light-emitting diode (LED) may be connected to a data line, so that a data signal (Vdata) may be input.

[0447] Meanwhile, the sub-pixel circuit (CRTm) in the drawing is driven by a passive matrix method.

[0448] Meanwhile, the operating method of the signal processing device (170) described in FIGS. 10 to 21c can be applied to a first display (180b) based on an organic light-emitting panel (180b).

[0449] Meanwhile, when various vehicle warning images, such as those in FIGS. 10 to 21c, are displayed on an organic light-emitting panel (210b), the signal processing device (170) or the driving control unit (285b) can perform deterioration compensation for pixels of the vehicle warning images to reduce deterioration due to burn-in.

[0450] This may occur. In this disclosure, deterioration judgment or deterioration compensation of various vehicle warning images is also described.

[0451] For example, when an alpha blending region is included in a first vehicle warning image among at least one vehicle warning image, the signal processing device (170) or the driving control unit (285b) may perform brightness compensation for each color of the alpha blending region when compensating for deterioration of the alpha blending region.

[0452] As another example, the signal processing device (170) or the driving control unit (285b) can control the luminance compensation value for each color of the alpha blending area to be different when compensating for deterioration of the alpha blending area when the alpha blending value for each color of the alpha blending area is different.

[0453] Specifically, the signal processing device (170) or the driving control unit (285b) can control the brightness compensation values ​​for red, orange, and green to be different when compensating for deterioration.

[0454] Meanwhile, the signal processing device (170) or the driving control unit (285b) can control the brightness compensation values ​​for red, orange, and green in the alpha blending area to be different when the alpha blending values ​​for each color in the alpha blending area are different. Accordingly, deterioration of the vehicle warning image can be prevented.

[0455] The signal processing device (170) or the driving control unit (285b) can perform deterioration compensation by shifting only a plurality of vehicle warning images within the vehicle information image.

[0456] For example, the signal processing device (170) or the driving control unit (285b) can perform pixel shift, first axis line shift, or second axis line shift only on a plurality of vehicle warning images within the vehicle information image.

[0457] Meanwhile, although the preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person having ordinary skill in the art to which the present invention pertains without departing from the gist of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical idea or prospect of the present disclosure.

Claims

1. Display; A signal processing device for outputting a video signal to the display; The above signal processing device, A vehicle display device that changes the brightness of the vehicle information image or the camera-based image when the difference in brightness between the vehicle information image and the camera-based image to be displayed in the second area of the display is greater than a predetermined value while displaying the vehicle information image in the first area of the display.

2. In paragraph 1, The above signal processing device, A vehicle display device, wherein, during night driving, when the difference in brightness between the vehicle information image and the camera-based image is greater than the predetermined value, the brightness of the camera-based image is controlled to increase in steps.

3. In paragraph 1, The above signal processing device, A vehicle display device, wherein the difference in brightness between the vehicle information image and the camera-based image is greater than the predetermined value, and when the brightness of the camera-based image is higher than the brightness of the vehicle information image, the brightness of the camera-based image is controlled to increase stepwise.

4. In paragraph 1, The above signal processing device, A vehicle display device, wherein when the vehicle information image is displayed in the first area of the display and a map image is displayed in the second area, and the camera is activated and the image displayed in the second area is switched to the camera-based image, if the difference in brightness between the vehicle information image and the camera-based image is greater than or equal to the predetermined value, the brightness of the vehicle information image or the camera-based image is varied.

5. In paragraph 1, The above signal processing device, A vehicle display device that varies the brightness of the vehicle information image or the camera-based image based on the ambient illumination of the vehicle.

6. In paragraph 1, The above signal processing device, A vehicle display device that varies the brightness of the vehicle information image or the camera-based image based on a setting input.

7. In paragraph 1, The above signal processing device, A vehicle display device that controls a second layer including a vehicle warning image to be overlaid on a first layer including surrounding vehicle information when displaying the vehicle information image in the first area of the display.

8. In paragraph 7, The above signal processing device, A vehicle display device that controls the safety level of the first layer including the surrounding vehicle information and the safety level of the second layer including the vehicle warning image to be different.

9. In paragraph 7, The above signal processing device, A vehicle display device that controls the second layer and the first layer to be overlaid on the third layer including the camera-based image.

10. In paragraph 1, The above display is, liquid crystal panel; including a backlight that outputs light to the liquid crystal panel; The above signal processing device, A vehicle display device that controls the light of the backlight arranged in the first area or the second area to be variable when the difference in brightness between the vehicle information image in the first area of the display and the camera-based image to be displayed in the second area of the display is greater than a predetermined value.

11. In paragraph 10, The above signal processing device, A vehicle display device, wherein, during night driving, when the difference in brightness between the vehicle information image and the camera-based image is greater than the predetermined value, the light of the backlight arranged in the second area is controlled to increase in steps.

12. In paragraph 10, The above signal processing device, A vehicle display device, wherein when the difference in brightness between the vehicle information image and the camera-based image is greater than the predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image, the light of the backlight arranged in the second area is controlled to increase in steps.

13. In paragraph 1, The above display is, Contains an organic light-emitting panel, The above signal processing device, A vehicle display device that varies the brightness of the vehicle information image or the camera-based image displayed on the organic light-emitting panel when the difference in brightness between the vehicle information image in the first area of the display and the camera-based image to be displayed in the second area of the display is greater than a predetermined value.

14. In paragraph 13, The above signal processing device, A vehicle display device, wherein, during night driving, when the difference in brightness between the vehicle information image and the camera-based image is greater than the predetermined value, the brightness of the camera-based image displayed on the organic light-emitting panel is controlled to increase in steps.

15. In paragraph 13, The above signal processing device, A vehicle display device, wherein when the difference in brightness between the vehicle information image and the camera-based image is greater than or equal to the predetermined value and the brightness of the camera-based image is higher than the brightness of the vehicle information image, the brightness of the camera-based image displayed on the organic light-emitting panel is controlled to increase in steps.

16. In paragraph 13, The above display is, Further comprising a driving control unit that outputs a driving signal to the organic light-emitting panel; The above driving control unit, A vehicle display device that outputs at least one vehicle warning image to a portion of the organic light-emitting panel using at least one vehicle warning image stored in memory.

17. Display; A signal processing device for outputting a video signal to the display; The above signal processing device, A vehicle display device that displays a vehicle information image in a first area of the display and a map image in a second area, and changes the brightness of a camera-based image displayed in place of the vehicle information image in the first area, and the map image or the vehicle information image when the difference in brightness between the map image or the vehicle information image is greater than a predetermined value.

18. In paragraph 17, The above signal processing device, A vehicle display device, wherein, during night driving, when the difference in brightness between the map image and the camera-based image is greater than the predetermined value, the brightness of the camera-based image is controlled to increase in steps.

19. In paragraph 17, The above signal processing device, A vehicle display device, wherein when the difference in brightness between the map image and the camera-based image is greater than the predetermined value and the brightness of the camera-based image is higher than the brightness of the map image or the vehicle information image, the brightness of the camera-based image is controlled to increase in steps.

Images