Cockpit display system

Abstract

The application discloses a cockpit display system, which comprises a cockpit, a first display device, a second display device, a first light sensor, a second light sensor and a brightness distribution calculation module. The first light sensor is adapted to detect a first ambient light brightness. The second light sensor is adapted to detect a second ambient light brightness. The brightness distribution calculation module is adapted to calculate, according to different first ambient light brightness and second ambient light brightness, a first brightness, a second brightness, a third brightness and a fourth brightness of a first display area and a second display area of the first display device and a third display area and a fourth display area of the second display device under the same display gray scale, and the first brightness, the second brightness, the third brightness and the fourth brightness are different from each other.

Description

Technical Field

[0001] This invention relates to a display system, and more particularly to a cockpit display system. Background Technology

[0002] The application of displays in the automotive field has gradually emerged as display technology has matured. In recent years, in some high-end car models on the market, traditional dashboards, rearview mirrors, or center consoles have been gradually replaced by flat or curved displays. As the size of in-vehicle displays continues to increase, screen brightness control has a significant impact on driving comfort. For example, during vehicle operation, changes in ambient light can sometimes make in-vehicle displays difficult to see clearly due to strong external light, or the screen brightness may be too glaring in dim environments, affecting driving safety. In addition, the brightness of most current in-vehicle displays needs to be manually adjusted by the driver, and the number of brightness settings available is limited, failing to meet the needs of various operating scenarios. Summary of the Invention

[0003] This invention provides a cockpit display system that can achieve good display effects under different ambient light distribution conditions.

[0004] The cockpit display system of the present invention includes a cockpit, a first display device, a second display device, a first light sensor, a second light sensor, and a brightness distribution calculation module. The first and second display devices are arranged side-by-side in the cockpit along an arrangement direction. The first display device has a first display area and a second display area. The second display device has a third display area and a fourth display area. The second display area is located between the first and third display areas. The third display area is located between the second and fourth display areas. The first and second light sensors are arranged along the arrangement direction and are adapted to detect a first ambient light brightness and a second ambient light brightness, respectively. The brightness distribution calculation module is adapted to calculate, based on the first and second ambient light brightness, a first brightness, a second brightness, a third brightness, and a fourth brightness of the first, second, third, and fourth display areas at the same first display grayscale, respectively. When the first ambient light brightness is different from the second ambient light brightness, the first, second, third, and fourth brightness are all different.

[0005] Based on the above, in a cockpit display system according to an embodiment of the present invention, a first light sensor disposed on one side of a first display device and a second light sensor disposed on one side of a second display device are adapted to detect ambient light levels in real time. A brightness distribution calculation module can calculate multiple brightness levels of multiple display areas of the first and second display devices at the same grayscale based on the first and second ambient light levels detected by the two light sensors. Since the brightness relationship of these display areas changes according to the relationship between the first and second ambient light levels, the display quality of the cockpit display system under different ambient light sources can be effectively improved, thereby optimizing the user's visual experience. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of a cockpit display system according to an embodiment of the present invention.

[0007] Figure 2 yes Figure 1 A block diagram of the cockpit display system.

[0008] Figure 3 yes Figure 2 The flowchart of the operation of the calibration module of the cockpit display system.

[0009] Figure 4 yes Figure 2 The flowchart of the brightness distribution calculation module during operation.

[0010] Figure 5A and Figure 5B yes Figure 1 A schematic diagram of the operation of the first and second display devices under external sunlight.

[0011] Figure 6 yes Figure 4 This is a diagram illustrating how the brightness range adjustment module is set via the user interface.

[0012] Figure 7 yes Figure 2 The flowchart of the object analysis module and the brightness adjustment module during operation.

[0013] Figure 8A and Figure 8B yes Figure 1 A schematic diagram of the operation of the first and second display devices for display objects of different importance.

[0014] Figure 9 yes Figure 2 The flowchart of the brightness adjustment module during operation.

[0015] Figure 10A and Figure 10B yes Figure 1 A schematic diagram of the operation of the first and second display devices under streetlight illumination.

[0016] Figure 11 yes Figure 2 The flowchart of the operation of multiple head-up displays and brightness distribution calculation modules.

[0017] Figure 12 yes Figure 1 A schematic diagram of multiple head-up displays operating under streetlight illumination.

[0018] Figure 13 yes Figure 2 The flowchart of the image adjustment module during operation.

[0019] Figure 14 yes Figure 2 A side view of the head-up display during image adjustment module operation.

[0020] Figure 15 yes Figure 2 The flowchart of the transparent display and brightness distribution calculation module during operation.

[0021] Figure 16 yes Figure 1 A schematic diagram of the transparent display operating under streetlight illumination.

[0022] Figure 17 This is a schematic diagram of a cockpit display system according to another embodiment of the present invention.

[0023] In the attached figures, the following labels are used:

[0024] 100, 100A: Cockpit Display System

[0025] 111: First display device

[0026] 112: Second display device

[0027] 121, 122, 123: Head-up Display

[0028] 121P, 122P, 123P: Projection optical engine

[0029] 130: Transparent Display

[0030] 150: Eye-tracking module

[0031] 151: First camera element

[0032] 152: Second camera element

[0033] 200: Control Unit

[0034] 210: Calibration Module

[0035] 230: Brightness Distribution Calculation Module

[0036] 250: Brightness Range Adjustment Module

[0037] 270: Object Analysis Module

[0038] 280: Brightness Adjustment Module

[0039] 290: Image Adjustment Module

[0040] AD: Arrangement Direction

[0041] APP: Application

[0042] BR1~BR4, HBR1~HBR3, OBJ-BR: Brightness

[0043] BRI1~BRI3: First brightness range~Third brightness range

[0044] BLBR1~BLBR4: First backlight brightness~Fourth backlight brightness

[0045] BLU1: First backlight module

[0046] BLU2: Second backlight module

[0047] CB: Ambient Light Corrected Brightness

[0048] CONF: Configuration

[0049] CP: Cockpit

[0050] DA1~DA4: First display area~Fourth display area

[0051] DBIF: Dashboard Information

[0052] DP1: First non-self-emissive display panel

[0053] DP2: Second non-self-emissive display panel

[0054] DPB_LUT: Panel brightness setting lookup table

[0055] DR, DR2: Driving

[0056] DS: Driver's Seat

[0057] DSB1~DSB3: First display brightness setting~Third display brightness setting

[0058] EVB1: First Ambient Light Intensity

[0059] EVB2: Second Ambient Light Intensity

[0060] EVB_LUT: Ambient Light Intensity Range Lookup Table

[0061] EYE, EYE2: Eyes

[0062] GZ-BR: Brightness

[0063] GZDA: Gaze Area

[0064] HDA1~HDA3: First display area~Third display area

[0065] IM1, IM2, IM1a: Image Information

[0066] IMS: Image Signal

[0067] LL: Lower limit of the interval

[0068] LSR1, LSR1-A: First photosensor

[0069] LSR2, LSR2-A: Second photosensor

[0070] LSR3-A: Third Light Sensor

[0071] MUS: Music Controller

[0072] OBJ_LUT: Object Importance Lookup Table

[0073] OBJ1, OBJ2, OBJ3: Display objects

[0074] OBJ1DA, OBJ2DA, OBJ3DA: Display areas

[0075] PSS: Passenger Seat

[0076] SB: Standard brightness

[0077] TBR1, TBR2: Display brightness

[0078] TDA1, TDA2: Transparent display area

[0079] UI: User Interface

[0080] UL: Upper limit of the range

[0081] VD: Direction of vision

[0082] WD: View Window Detailed Implementation

[0083] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0084] As used herein, “about,” “approximately,” “essentially,” or “substantially” includes the value and the average value within an acceptable range of deviations from a particular value as determined by one of ordinary skill in the art, taking into account the measurement under discussion and a particular number of errors associated with the measurement (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the value, or, for example, within ±30%, ±20%, ±15%, ±10%, ±5%. Furthermore, the use of “about,” “approximately,” “essentially,” or “substantially” herein may be chosen to select a more acceptable range of deviations or standard deviations depending on the nature of the measurement, the cutting nature, or other properties, and may not require a single standard deviation to apply to all properties.

[0085] In the accompanying drawings, the thicknesses of layers, films, panels, regions, etc., are enlarged for clarity. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected" to another element, it may be directly on or connected to the other element, or intermediate elements may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected" to another element, no intermediate elements are present. As used herein, "connection" can refer to a physical and / or electrical connection. Furthermore, an "electrical connection" may mean the presence of other elements between two elements.

[0086] Furthermore, relative terms such as “down” or “bottom” and “up” or “top” may be used herein to describe the relationship between one element and another, as illustrated in the figures. It should be understood that relative terms are intended to include different orientations of the device beyond those shown in the figures. For example, if a device in one figure is flipped, an element described as being “down” to another element will be oriented “up” to that element. Thus, the exemplary term “down” can include both “down” and “up” orientations, depending on the specific orientation of the figure. Similarly, if a device in one figure is flipped, an element described as being “below” or “under” another element will be oriented “above” that element. Thus, the exemplary terms “above” or “below” can include both “up” and “down” orientations.

[0087] This document describes exemplary embodiments with reference to cross-sectional views, which are schematic diagrams of idealized embodiments. Therefore, variations in the shape of the illustrations can be expected as a result of, for example, manufacturing techniques and / or tolerances. Consequently, the embodiments described herein should not be construed as limited to the specific shapes of the regions shown herein, but rather include, for example, shape deviations caused by manufacturing processes. For example, regions shown or described as flat may generally have rough and / or non-linear characteristics. Furthermore, the acute angles shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to show the precise shapes of the regions, nor are they intended to limit the scope of the claims.

[0088] The invention will now be described in detail with reference to exemplary embodiments thereof, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element symbols are used in the drawings and description to denote the same or similar parts.

[0089] Figure 1 This is a schematic diagram of a cockpit display system according to an embodiment of the present invention. Figure 2 yes Figure 1 A block diagram of the cockpit display system. Figure 3 yes Figure 2 The flowchart illustrates the operation of the calibration module for the cockpit display system. Please refer to... Figure 1 and Figure 2 A cockpit display system 100, suitable for installation within a cockpit (CP), includes a first display device 111, a second display device 112, a plurality of head-up displays, and a transparent display 130. In this embodiment, the cockpit (CP) is, for example, a car cockpit, but is not limited thereto. In other embodiments, the cockpit may also be a simulator cockpit or a computer cockpit.

[0090] The first display device 111 is located in front of the driver's seat DS within the cockpit CP and can serve as the vehicle's instrument panel. That is, the first display device 111 is suitable for displaying vehicle information such as vehicle speed, power consumption, engine speed, and instrument panel indicator lights, but is not limited to these. The second display device 112 is located in front of the passenger seat PSS within the cockpit CP and is suitable for displaying interactive content that can be operated by the passenger (or front passenger). In other words, the first display device 111 and the second display device 112 are arranged side-by-side within the cockpit CP along the arrangement direction AD of the driver's seat DS and the passenger seat PSS.

[0091] Multiple head-up displays (HUDs) are positioned above the first display device 111 and are adapted to display navigation information, driving information (e.g., warning signs and distance indicators), or other image information either patchwork-on or independently on the view window WD of the cockpit CP. In this embodiment, the cockpit display system 100 may have three HUDs: a first HUD 121, a second HUD 122, and a third HUD 123, but this is not a limitation. For example, the first HUD 121, the second HUD 122, and the third HUD 123 may each have a first projection optical engine 121P, a second projection optical engine 122P, and a third projection optical engine 123P, respectively. These projection optical engines are positioned on a platform behind the first display device 111 and the second display device 112 and project images toward the view window WD.

[0092] The transparent display 130 overlaps with the cockpit CP's see-through window WD setting and is suitable for displaying, for example, Figure 12The image information IM2 in the image. The image information IM2 includes, for example, vehicle speed limit, vehicle gear, vehicle speed, or other driving information, but is not limited thereto. In this embodiment, the transparent display 130 may be positioned between the projection range of the three projection engines on the viewing window WD and the first display device 111.

[0093] In this embodiment, the display sizes of the first display device 111, the second display device 112, the head-up display, and the transparent display 130 are, for example, 30.4 inches, 21.6 inches, 10.3 inches, and 15.5 inches, respectively, but are not limited thereto.

[0094] Furthermore, the cockpit display system 100 includes a control unit 200, which is electrically connected to the first display device 111, the second display device 112, the first head-up display 121, the second head-up display 122, the third head-up display 123, and the transparent display 130.

[0095] In this embodiment, the control unit 200 is, for example, a cockpit domain controller (CDC), which has high-performance computing capabilities and is suitable for executing various algorithms to realize the function of actively adjusting the display screen.

[0096] Firstly, to execute these algorithms, the cockpit display system 100 further includes a first light sensor LSR1 positioned corresponding to the driver's seat DS (or the first display device 111), a second light sensor LSR2 positioned corresponding to the passenger seat PSS (or the second display device 112), and an eye-tracking module 150 positioned corresponding to both the driver's seat DS and the passenger seat PSS. The first light sensor LSR1 and the second light sensor LSR2 can be arranged at intervals along the arrangement direction AD of the driver's seat DS and the passenger seat PSS, and are suitable for detecting the ambient light around the cockpit CP.

[0097] The eye-tracking module 150 is adapted to detect the eye position or gaze direction of the driver (DR) in the driver's seat (DS) or the front passenger (i.e., passenger) in the front passenger seat (PSS). For example, the eye-tracking module 150 may include a first camera element 151 corresponding to the driver's seat (DS) and a second camera element 152 corresponding to the front passenger seat (PSS). To perform detection in a dimly lit cockpit (CP), the eye-tracking module 150 may also optionally include an infrared (IR) light source, but is not limited thereto.

[0098] The control unit 200 can select and execute a specific algorithm to actively adjust the brightness of the display screen or the position of the displayed content on the screen based on the ambient light brightness obtained by the first light sensor LSR1 and the second light sensor LSR2 or the eye position or gaze direction obtained by the eye tracking module 150 for the driver DR or the passenger (not shown). The algorithms mentioned here include, for example, the correction module 210, the brightness distribution calculation module 230, and the image adjustment module 290 included in the control unit 200.

[0099] The following will provide an illustrative explanation of how the cockpit display system 100 adjusts the display brightness of the display device or monitor in various scenarios.

[0100] Figure 4 yes Figure 2 The flowchart of the brightness distribution calculation module during operation. Figure 5A and Figure 5B yes Figure 1 A schematic diagram of the operation of the first and second display devices under external sunlight. Figure 6 yes Figure 4 This is a diagram illustrating how the brightness range adjustment module is set via the user interface.

[0101] Please refer to Figure 4 , Figure 5A and Figure 5B The first display device 111 includes a first backlight module BLU1 and a first non-self-emissive display panel DP1 arranged overlapping each other, and has a first display area DA1 and a second display area DA2. The second display device 112 includes a second backlight module BLU2 and a second non-self-emissive display panel DP2 arranged overlapping each other, and has a third display area DA3 and a fourth display area DA4. Along the arrangement direction AD of the first display device 111 and the second display device 112, the second display area DA2 is located between the first display area DA1 and the third display area DA3, and the third display area DA3 is located between the second display area DA2 and the fourth display area DA4.

[0102] The brightness distribution calculation module 230 is adapted to calculate the first brightness BR1, second brightness BR2, third brightness BR3, and fourth brightness BR4 of the first display area DA1 and the second display area DA2 of the first display device 111 and the third display area DA3 and the fourth display area DA4 of the second display device 112, respectively, at the same display grayscale (e.g., the first display grayscale), based on the first ambient light brightness EVB1 detected by the first light sensor LSR1 and the second ambient light brightness EVB2 detected by the second light sensor LSR2. It should be noted that when the first ambient light brightness EVB1 is different from the second ambient light brightness EVB2, the first brightness BR1, second brightness BR2, third brightness BR3, and fourth brightness BR4 are all different.

[0103] More specifically, since the first display device 111 and the second display device 112 in this embodiment are each a combination of a non-self-emissive display panel and a backlight module, the brightness distribution calculation module 230 actually calculates the first backlight brightness BLBR1 and the second backlight brightness BLBR2 of the first backlight module BLU1 in the first display area DA1 and the second display area DA2, and the third backlight brightness BLBR3 and the fourth backlight brightness BLBR4 of the second backlight module BLU2 in the third display area DA3 and the fourth display area DA4, based on the first ambient light brightness EVB1 and the second ambient light brightness EVB2. When the first ambient light brightness EVB1 is different from the second ambient light brightness EVB2, the first backlight brightness BLBR1, the second backlight brightness BLBR2, the third backlight brightness BLBR3, and the fourth backlight brightness BLBR4 are all different.

[0104] However, the present invention is not limited thereto. In other embodiments, the first display device and the second display device may also be self-emissive display panels, so the brightness calculated by the aforementioned brightness distribution calculation module 230 for each display area is the self-emissive brightness of the display panel.

[0105] In detail, during the calculation of the brightness of each display area of ​​the display device, the brightness distribution calculation module 230 is also adapted to classify the first ambient light brightness EVB1 and the second ambient light brightness EVB2 according to the standard brightness SB in the system's factory-set configuration CONF. The classification of ambient light can be performed based on the ambient light brightness range lookup table EVB_LUT, which can be generated based on the standard brightness SB. Please refer to... Figure 3It should be noted that, in this embodiment, the calibration module 210 of the control unit 200 is used to calibrate the standard brightness SB in the configuration CONF before the system leaves the factory. During the calibration process, the first light sensor LSR1 and the second light sensor LSR2 are adapted to detect an ambient light calibration brightness CB, and the calibration module 210 can adjust the standard brightness SB according to the ambient light calibration brightness CB. For example, when the ambient light calibration brightness CB is not equal to the preset standard brightness SB, the ambient light calibration brightness CB is set as the calibrated standard brightness SB and written into the configuration CONF.

[0106] Please refer to Figure 4 , Figure 5A and Figure 5B For example, in this embodiment, different ambient light levels can be divided into three brightness ranges, for example... Figure 6 The ambient light intensity range is defined by three luminance intervals: BRI1, BRI2, and BRI3, but is not a limitation thereof. The ambient light intensity in the second luminance interval (BRI2) is greater than that in the first luminance interval (BRI1) and less than that in the third luminance interval (BRI3). The standard luminance (SB) is located within the second luminance interval (BRI2). The ambient light intensity range lookup table (EVB_LUT) defines the ambient light intensity ranges corresponding to the first luminance interval (BRI1), the second luminance interval (BRI2), and the third luminance interval (BRI3), respectively.

[0107] After completing the classification of the first ambient light brightness EVB1 and the second ambient light brightness EVB2, the brightness distribution calculation module 230 calculates the first brightness BR1 and the second brightness BR2 of the first display device 111 and the third brightness BR3 and the fourth brightness BR4 of the second display device 112 according to the classification structure (or the first backlight brightness BLBR1 and the second backlight brightness BLBR2 of the first backlight module BLU1 and the third backlight brightness BLBR3 and the fourth backlight brightness BLBR4 of the second backlight module BLU2).

[0108] For example, when the first ambient light luminance EVB1 is in the third luminance range BRI3 and the second ambient light luminance EVB2 is in the second luminance range BRI2 or the first luminance range BRI1, the luminance distribution calculation module 230 will calculate the first luminance BR1, the second luminance BR2, the third luminance BR3, and the fourth luminance BR4 based on the third display setting luminance corresponding to the third luminance range BRI3 and the second display setting luminance corresponding to the second luminance range BRI2 or the first display setting luminance corresponding to the first luminance range BRI1. The second luminance BR2 is greater than the third luminance BR3 and less than the first luminance BR1, and the fourth luminance BR4 is less than the third luminance BR3. In this embodiment, the correspondence between different luminance ranges of ambient light and the display setting luminance of the display device can be defined in a panel luminance setting lookup table DPB_LUT, but is not limited thereto.

[0109] In other words, when the first ambient light brightness EVB1 is greater than the second ambient light brightness EVB2, the brightness of each display area of ​​the first display device 111 and the second display device 112 is arranged from largest to smallest as follows: the first brightness BR1 of the first display area DA1, the second brightness BR2 of the second display area DA2, the third brightness BR3 of the third display area DA3, and the fourth brightness BR4 of the fourth display area DA4.

[0110] When an external light source (such as sunlight) shines on one side of the first display device 111, the backlight brightness of each display area, arranged from largest to smallest, is as follows: the first backlight brightness BLBR1 of the first display area DA1, the second backlight brightness BLBR2 of the second display area DA2, the third backlight brightness BLBR3 of the third display area DA3, and the fourth backlight brightness BLBR4 of the fourth display area DA4 (e.g., ...). Figure 5B (As shown). In other words, the backlight brightness of the first backlight module BLU1 and the second backlight module BLU2 decreases from the side closer to the sunlight to the side farther away from the sunlight (i.e., they are distributed in a gradual manner).

[0111] By increasing the backlight brightness on the side closer to sunlight, the visibility of dashboard information DBIF displayed in the first display area DA1 on the first display device 111 under strong external light can be effectively improved. Since the third display area DA3 and the fourth display area DA4 of the second display device 112 are located on the side further away from sunlight, even if their backlight brightness is lower than that of the first display area DA1, interactive content (such as multiple applications APP) displayed on the second display device 112 can still have visibility comparable to the dashboard information DBIF.

[0112] For example, when the cockpit display system 100 of this embodiment is equipped with (e.g. Figure 1When the vehicle (as shown) is driving on the road, if it encounters a significant change in the external ambient light, the detection result of the light sensor can trigger the brightness distribution calculation module 230 of the control unit 200 to perform the aforementioned calculation process based on the currently detected ambient light brightness and update the backlight brightness distribution of the first display device 111 and the second display device 112 in real time, so as to optimize the visual experience of the driver and passengers under different ambient light conditions.

[0113] Furthermore, to allow users (such as vehicle drivers) to set the brightness range for ambient light grading after the cockpit display system 100 leaves the factory, the control unit 200 may optionally include a brightness range adjustment module 250. Please refer to Figure 4 and Figure 6 The brightness range adjustment module 250 is adapted to adjust the upper limit UL and lower limit LL of the first brightness range BRI1, the second brightness range BRI2 and the third brightness range BRI3 according to the user's settings on the user interface UI.

[0114] Additionally, the user can adjust the first display setting brightness DSB1 of the first brightness range BRI1, the second display setting brightness DSB2 of the second brightness range BRI2, and the third display setting brightness DSB3 of the third brightness range BRI3 using the user interface (UI). For example, the user interface (UI) can be displayed on at least one of the first display device 111 and the second display device 112, but is not limited thereto.

[0115] Figure 7 yes Figure 2 The flowchart of the object analysis module and the brightness adjustment module during operation. Figure 8A and Figure 8B yes Figure 1 The diagram illustrates the operation of the first and second display devices on display objects of different importance. Please refer to... Figure 7 , Figure 8A and Figure 8B In this embodiment, the control unit 200 may further include an object analysis module 270 and a brightness adjustment module 280, which are adapted to classify the importance of the image content of the first display device 111 and the second display device 112 and enhance the display effect of specific content.

[0116] The object analysis module 270 is adapted to analyze the image signals (IMS) of the first display device 111 and the second display device 112 to obtain the importance of the displayed objects and their corresponding display areas. For example, in this embodiment, the object analysis module 270 can analyze the image signals (IMS) of the first display device 111 and the second display device 112 to obtain the importance of the displayed objects and their corresponding display areas. Figure 8AThe display content on the first display device 111 and the second display device 112 is analyzed in real time, and display objects OBJ1 (e.g., dashboard information DBIF) located in display area OBJ1DA, display objects OBJ2 (e.g., music controller MUS) located in display area OBJ2DA, and display objects OBJ3 (e.g., application APP) located in display area OBJ3DA are distinguished. The display areas of the display objects may overlap with at least one of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4.

[0117] After obtaining the quantity and type of displayed objects, the object analysis module 270 further classifies the importance of the displayed objects based on their content. For example, in this embodiment, the importance analysis step may include classifying the displayed objects according to a pre-set object importance lookup table OBJ_LUT, such as setting the importance of displayed objects OBJ1, OBJ2, and OBJ3 to high importance, medium importance, and low importance respectively, but is not limited to this.

[0118] After classifying the importance of the displayed objects, the brightness adjustment module 280 adjusts the brightness OBJ-BR of at least one of the first display device 111 and the second display device 112 within the display area of ​​the displayed object according to the importance of the displayed object. In this embodiment, the brightness adjustment module 280 may adjust the brightness of the display area of ​​the displayed object for different importance objects by different amounts. For example, it may increase the brightness of the display area of ​​a high-importance displayed object by 10%, increase the brightness of the display area of ​​a medium-importance displayed object by 5%, and decrease the brightness of the display area of ​​a low-importance displayed object by 10%, but this is not a limitation.

[0119] Figure 9 yes Figure 2 The flowchart of the brightness adjustment module during operation. Figure 10A and Figure 10B yes Figure 1 A schematic diagram showing the operation of the first and second display devices under streetlight illumination. Please refer to... Figure 9 , Figure 10A and Figure 10B In this embodiment, the brightness adjustment module 280 of the control unit 200 is also adapted to actively adjust the brightness of the display area being looked at by the user based on the user's (e.g., driver or passenger's) gaze direction VD obtained by the eye-tracking module 150.

[0120] For example, the first camera element 151 of the eye-tracking module 150 can be used to detect the gaze direction VD of the driver's eyes. When the driver's gaze direction VD falls on the dashboard information DBIF (i.e., the display area of ​​the dashboard information DBIF displayed on the first display device 111 is the gaze area GZDA), the brightness adjustment module 280 will actively adjust the brightness GZ-BR of the gaze area GZDA on the first display device 111 that is being gazed at by the driver. Here, the gaze area GZDA overlaps with at least one of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4. In this embodiment, the brightness adjustment of the gaze area GZDA is, for example, adjusting the backlight brightness of the first backlight module BLU1 of the first display device 111 in the gaze area GZDA, but is not limited to this.

[0121] It is easy to understand that the second camera element 152 of the eye-tracking module 150 can also be used to detect the direction of the passenger's gaze in the front passenger seat, and the brightness adjustment module 280 is also adapted to adjust the brightness of the display area of ​​the display device being viewed according to the direction of the passenger's gaze.

[0122] It should be noted that, in Figure 10A The first display device 111 and the second display device 112 are used for display, for example, at night, and the vehicle in motion is illuminated by streetlights on one side of the second display device 112. Therefore, the first ambient light brightness detected by the first light sensor LSR1 is less than the second ambient light brightness detected by the second light sensor LSR2. The brightness of each display area of ​​the first display device 111 and the second display device 112 is arranged from smallest to largest as follows: the first brightness BR1 of the first display area DA1, the second brightness BR2 of the second display area DA2, the third brightness BR3 of the third display area DA3, and the fourth brightness BR4 of the fourth display area DA4.

[0123] By progressively reducing the backlight brightness of the first display device 111 and the second display device 112 towards the direction away from the streetlights, driving safety can be prevented from being affected by excessively bright screens in dim environments. The brightness adjustment of each display area here is also based on... Figure 4 The operation mode of the brightness distribution calculation module 230 shown is implemented as described above. For detailed explanation, please refer to the relevant paragraphs above, and it will not be repeated here.

[0124] It should be noted that, in this scenario, the brightness adjustment module 280 adjusts the brightness of the first display device 111 in the viewing area GZDA based on the brightness distribution adjustment of the display device by the brightness distribution calculation module 230 according to changes in ambient light. That is, brightness adjustments for different needs can be cumulative. For example, the brightness adjustment module 280 can increase the brightness of the viewing area GZDA within the first display area DA1 by a preset increase (e.g., 10%) based on the brightness calculated by the brightness distribution calculation module 230 for the first display area DA1, thereby optimizing the display effect of the dashboard information DBIF in dim environments.

[0125] Figure 11 yes Figure 2 The flowchart of the operation of multiple head-up displays and brightness distribution calculation modules. Figure 12 yes Figure 1 A schematic diagram showing the operation of multiple head-up displays under streetlight illumination. Please refer to... Figure 11 and Figure 12 The aforementioned dimming methods for the first display device 111 and the second display device 112 can also be applied to head-up displays. That is, the brightness distribution calculation module 230 can also calculate the brightness of each display area of ​​the multiple head-up displays at the same display grayscale (i.e., the second display grayscale) based on the first ambient light brightness EVB1 and the second ambient light brightness EVB2 detected by the first light sensor LSR1 and the second light sensor LSR2. When the first ambient light brightness EVB1 is different from the second ambient light brightness EVB2, the brightness of each display area of ​​these head-up displays will be different.

[0126] For example, Figure 12 The first head-up display 121, the second head-up display 122, and the third head-up display 123 are, for example, displayed at night, and the moving vehicle is illuminated by streetlights on the side away from the first head-up display 121. Therefore, the first ambient light luminance EVB1 detected by the first light sensor LSR1 will be less than the second ambient light luminance EVB2 detected by the second light sensor LSR2. The brightness of the first display area HDA1 of the first head-up display 121, the second display area HDA2 of the second head-up display 122, and the third display area HDA3 of the third head-up display 123, arranged from smallest to largest, are: the first brightness HBR1 of the first display area HDA1, the second brightness HBR2 of the second display area HDA2, and the third brightness HBR3 of the third display area HDA3.

[0127] By progressively reducing the brightness of the first display area HDA1, the second display area HDA2 of the second head-up display 122, and the third head-up display 123 in a direction away from the streetlights, it is possible to prevent the driver's DR from being affected by excessively bright screens in dim environments, thus ensuring driving safety. The brightness adjustment of each display area (e.g.) Figure 11 (As shown) is also based on Figure 4 The operation mode of the brightness distribution calculation module 230 shown is implemented as described above. For detailed explanation, please refer to the relevant paragraphs above, and it will not be repeated here.

[0128] It is worth mentioning that, in this embodiment, the first head-up display 121, the second head-up display 122, and the third head-up display 123 can be displayed in a tiled arrangement along the orientation, for example, directional indicators (such as...). Figure 12 Image information IM1 (such as the right turn instruction shown), but not limited to this. In other usage scenarios, these head-up displays can also independently display different image information.

[0129] Figure 13 yes Figure 2 The flowchart of the image adjustment module during operation. Figure 14 yes Figure 2 This is a side view diagram of the head-up display during image adjustment module operation. Please refer to... Figure 12 and Figure 13 In this embodiment, the control unit 200 may optionally include an image adjustment module 290, adapted to adjust the display position of the image information IM1 of the first head-up display 121, the second head-up display 122, and the third head-up display 123 on the perspective window WD according to the eye position obtained by the eye-tracking module 150 for the user (e.g., driving DR). Accordingly, the image information IM1 (e.g., guidance indicators) can be appropriately integrated into the real scene, which helps to enhance the user's immersive visual experience.

[0130] Please refer to Figure 13 and Figure 14 From another perspective, the adjustment mechanism of the image adjustment module 290 is applicable to drivers of different heights. More specifically, when the same vehicle is operated by drivers of different heights, the aforementioned image adjustment module 290 can be used to display the image information on the head-up display in the corresponding positions.

[0131] For example, when the vehicle is operated by a taller driver (DR), the image adjustment module 290 displays image information IM1 on the WD window at a first position that overlaps with the road surface, based on the height of DR's eyes (EYE). When the vehicle is operated by a shorter driver (DR2), the image adjustment module 290 also displays image information IM1a on the WD window at a second position that overlaps with the road surface, based on the height of DR's eyes (EYE2). Because driver DR2 is shorter, the second position of image information IM1a on the WD window will be lower than the first position of image information IM1 on the WD window.

[0132] Figure 15 yes Figure 2 The flowchart of the transparent display and brightness distribution calculation module during operation. Figure 16 yes Figure 1 A schematic diagram showing the operation of the transparent display under streetlight illumination. Please refer to... Figure 15 and Figure 16 The aforementioned dimming methods for the first display device 111 and the second display device 112 can also be applied to the transparent display 130. That is, the brightness distribution calculation module 230 can also calculate the brightness of different display areas of the transparent display 130 at the same display grayscale (i.e., the second display grayscale) based on the first ambient light brightness EVB1 and the second ambient light brightness EVB2 detected by the first light sensor LSR1 and the second light sensor LSR2. When the first ambient light brightness EVB1 is different from the second ambient light brightness EVB2, the display brightness of different display areas of the transparent display 130 is different. In this embodiment, the transparent display 130 may have a first transparent display area TDA1 and a second transparent display area TDA2 arranged along the arrangement direction AD.

[0133] For example, Figure 16 The transparent display 130 is used for displaying information at night, and a moving vehicle is illuminated by streetlights on the side closest to the transparent display 130. Therefore, the first ambient light luminance EVB1 detected by the first light sensor LSR1 is greater than the second ambient light luminance EVB2 detected by the second light sensor LSR2. Accordingly, the first display luminance TBR1 calculated by the luminance distribution calculation module 230 for the first transparent display area TDA1 of the transparent display 130 is greater than the second display luminance TBR2 calculated for the second transparent display area TDA2.

[0134] By gradually reducing the display brightness of the transparent display 130 towards the direction away from the streetlights, driving safety can be prevented from being affected by excessively bright screens in dimly lit environments. The brightness adjustment of different transparent display areas of the transparent display 130 (e.g.) Figure 15 (As shown) is also based on Figure 4The operation mode of the brightness distribution calculation module 230 shown is implemented as described above. For detailed explanation, please refer to the relevant paragraphs above, and it will not be repeated here.

[0135] Figure 17 This is a schematic diagram of a cockpit display system according to another embodiment of the present invention. Please refer to... Figure 17 The cockpit display system 100A in this embodiment and Figure 1 The main difference between the cockpit display system 100 and the previous one lies in the location of the light sensor. Specifically, in this embodiment, the light sensor can be located on the projection optical engine of the head-up display. For example, the first projection optical engine 121P and the third projection optical engine 123P are respectively equipped with a first light sensor LSR1-A and a second light sensor LSR2-A.

[0136] Since the operation modes of the first photosensor LSR1-A and the second photosensor LSR2-A in this embodiment are similar... Figure 1 The first light sensor LSR1 and the second light sensor LSR2 are described in detail in the relevant paragraphs of the foregoing embodiments, and will not be repeated here. However, the present invention is not limited thereto. In other embodiments not shown, the transparent display 130 may also be provided with light sensors to meet the adjustment requirements of the transparent display 130 in terms of display brightness distribution.

[0137] Of particular note is that, in this embodiment, the cockpit display system 100A further includes a third light sensor LSR3-A disposed on the second projection optical engine 122P. For example, the first light sensor LSR1-A, the third light sensor LSR3-A, and the second light sensor LSR2-A are respectively adapted to detect the ambient light brightness at the left front, center front, and right front of the cockpit CP. The control unit can select and execute a specific algorithm to actively adjust the brightness of the display screen based on the ambient light brightness obtained by these three light sensors. The algorithm mentioned here is, for example, the correction module 210 and the brightness distribution calculation module 230 included in the control unit 200 in the aforementioned embodiment. For detailed descriptions, please refer to the relevant paragraphs of the aforementioned embodiments, which will not be repeated here.

[0138] In summary, in a cockpit display system according to an embodiment of the present invention, a first light sensor disposed on one side of the first display device and a second light sensor disposed on one side of the second display device are adapted to detect ambient light levels in real time. The brightness distribution calculation module can calculate multiple brightness levels of multiple display areas of the first and second display devices at the same grayscale based on the first and second ambient light levels detected by the two light sensors. Since the brightness relationship of these display areas changes according to the relationship between the first and second ambient light levels, the display quality of the cockpit display system under different ambient light sources can be effectively improved, thereby optimizing the user's visual experience.

[0139] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A cockpit display system, characterized in that, include: One cabin; A first display device and a second display device are arranged side by side in the cockpit along an arrangement direction. The first display device has a first display area and a second display area, and the second display device has a third display area and a fourth display area. The second display area is located between the first display area and the third display area, and the third display area is located between the second display area and the fourth display area. A first light sensor and a second light sensor are arranged along the arrangement direction and are adapted to detect a first ambient light intensity and a second ambient light intensity, respectively; and A brightness distribution calculation module is adapted to calculate a first brightness, a second brightness, a third brightness, and a fourth brightness of the first display area, the second display area, the third display area, and the fourth display area respectively under the same first display grayscale based on the first ambient light brightness and the second ambient light brightness, wherein when the first ambient light brightness is different from the second ambient light brightness, the first brightness, the second brightness, the third brightness, and the fourth brightness are different from each other; The brightness distribution calculation module is also adapted to classify the first ambient light brightness and the second ambient light brightness according to a standard brightness. The grading steps for the first ambient light brightness and the second ambient light brightness include determining that the first ambient light brightness and the second ambient light brightness are each located within a first brightness range, a second brightness range, or a third brightness range, wherein the ambient light brightness of the second brightness range is greater than that of the first brightness range and less than that of the third brightness range, and the standard brightness is located within the second brightness range.

2. The cockpit display system as described in claim 1, characterized in that, The first display device includes a first backlight module and a first non-self-emissive display panel arranged overlapping each other. The second display device includes a second backlight module and a second non-self-emissive display panel arranged overlapping each other. The brightness distribution calculation module is adapted to calculate a first backlight brightness and a second backlight brightness of the first backlight module in the first display area and the second display area respectively, and a third backlight brightness and a fourth backlight brightness of the second backlight module in the third display area and the fourth display area respectively, based on the first ambient light brightness and the second ambient light brightness, so that the first backlight brightness, the second backlight brightness, the third backlight brightness and the fourth backlight brightness are different from each other.

3. The cockpit display system as described in claim 1, characterized in that, Including: A calibration module, wherein the first light sensor and the second light sensor are further adapted to detect an ambient light correction brightness, and the calibration module is adapted to adjust the standard brightness according to the ambient light correction brightness.

4. The cockpit display system as described in claim 1, characterized in that, The brightness distribution calculation module calculates the first brightness, the second brightness, the third brightness, and the fourth brightness based on the classification results of the first ambient light brightness and the second ambient light brightness.

5. The cockpit display system as described in claim 4, characterized in that, When the first ambient light brightness is in the third brightness range and the second ambient light brightness is in the second brightness range or the first brightness range, the brightness distribution calculation module calculates the first brightness, the second brightness, the third brightness and the fourth brightness based on a third display setting brightness corresponding to the third brightness range and a second display setting brightness corresponding to the second brightness range or a first display setting brightness corresponding to the first brightness range. The second brightness is greater than the third brightness and less than the first brightness, and the fourth brightness is less than the third brightness.

6. The cockpit display system as described in claim 1, characterized in that, Including: A brightness range adjustment module is suitable for adjusting the upper and lower limits of the first brightness range, the second brightness range, and the third brightness range according to a user's settings.

7. The cockpit display system as described in claim 6, characterized in that, A first display setting brightness corresponding to the first brightness range, a second display setting brightness corresponding to the second brightness range, and a third display setting brightness corresponding to the third brightness range are suitable for adjustment by the user.

8. The cockpit display system as claimed in claim 1, characterized in that, Including: An object analysis module is adapted to analyze the image signals of the first display device and the second display device to obtain the importance and display area of ​​a displayed object, wherein the display area of ​​the displayed object overlaps with at least one of the first display area, the second display area, the third display area, and the fourth display area; and A brightness adjustment module is adapted to adjust the brightness of at least one of the first display device and the second display device in the display area of ​​the display object according to the importance of the display object.

9. The cockpit display system as described in claim 8, characterized in that, The importance analysis step of the displayed object includes: classifying the importance of the displayed object according to an object importance lookup table, and the brightness adjustment module adjusts the brightness of the display area of ​​the displayed object according to the different importance of the displayed object.

10. The cockpit display system as claimed in claim 1, characterized in that, Including: An eye-tracking module is installed in a cockpit corresponding to a driver's seat and is suitable for detecting the direction of a user's gaze in that driver's seat; as well as A brightness adjustment module is adapted to increase the brightness of a viewing area on the first display device or the second display device that is being viewed by the user according to the user's line of sight, wherein the viewing area overlaps with at least one of the first display area, the second display area, the third display area and the fourth display area.

11. The cockpit display system as claimed in claim 1, characterized in that, Including: Multiple head-up displays are installed within the cockpit. These head-up displays are adapted to display image information on a view window of the cockpit, and each has a display area. The brightness distribution calculation module is also adapted to calculate the brightness of each of the multiple display areas of the head-up displays under the same second display grayscale based on the first ambient light brightness and the second ambient light brightness. When the first ambient light brightness is different from the second ambient light brightness, the brightness of each of the display areas is different.

12. The cockpit display system as claimed in claim 11, characterized in that, Including: An eye-tracking module is configured to correspond to a driver's seat in the cockpit and is suitable for detecting the position of a user's eyes in that driver's seat; as well as An image adjustment module is adapted to adjust the display position of the image information of the head-up displays on the perspective window according to the position of the user's eyes.

13. The cockpit display system as claimed in claim 11, characterized in that, These head-up displays show the image information in a mosaic pattern along the arrangement direction.

14. The cockpit display system as claimed in claim 1, characterized in that, Including: A transparent display is arranged overlapping a view window of the cockpit, and has a first transparent display area and a second transparent display area arranged along the arrangement direction. The brightness distribution calculation module is also adapted to calculate a first display brightness and a second display brightness of the first transparent display area and the second transparent display area of ​​the transparent display respectively under the same second display grayscale based on the first ambient light brightness and the second ambient light brightness. When the first ambient light brightness is different from the second ambient light brightness, the first display brightness is different from the second display brightness.

Images