A transparent oled heads-up display system and method of controlling the same

By introducing eye-tracking and physiological feature detection modules into a transparent OLED display system, combined with parallax compensation algorithms and display optimization technology, isometric imaging effects of the transparent OLED display screen are achieved, enhancing the driver's perception of key information and improving driving safety.

CN119472039BActive Publication Date: 2025-12-05LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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Patent Information

Application Number
CN202411624122.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-12-05
Estimated Expiration
2044-11-14

AI Technical Summary

Technical Problem

Traditional HUD systems are bulky and heavy, making them unsuitable for new vehicles with high integration requirements. Furthermore, transparent OLED displays struggle to achieve the same infinity imaging effect as traditional HUDs.

Method used

Employing an eye-tracking module, a physiological feature detection module, and a display content adjustment module, combined with a parallax compensation algorithm and symbolic image dynamic adjustment technology, the system monitors the driver's head position and viewing angle in real time via a camera. Based on physiological feature data, it dynamically adjusts the transparency, color, and salience of the displayed content to achieve an isometric imaging effect.

Benefits of technology

It achieves the same isometric imaging effect as traditional HUDs with transparent OLED displays, and optimizes the display content in real time according to the driver's physiological characteristics, thereby improving driving safety.

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Abstract

The application belongs to the technical field of head-up display. The application provides a transparent OLED head-up display system and a control method thereof. The head-up display system of the present application monitors the head position and the visual angle of the driver in real time through a camera, combines a parallax compensation algorithm and a symbol picture dynamic adjustment technology, realizes the same isometric imaging effect as the traditional HUD, and makes the image imaging distance approximate to infinity. On the other hand, the system has the function of dynamically adjusting the display content, can optimize the transparency, color and prominence of the display content in real time according to the physiological characteristics (such as blood pressure, heart rate, eye movement, respiratory rate, etc.) of the driver, thereby individually enhances the perception of the driver to the key information, and improves the driving safety.
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Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure relates to the field of head-up display technology, in particular to a transparent OLED head-up display system and a control method thereof. BACKGROUND

[0002] The traditional HUD (Head Up Display) system projects information into the driver's field of view through optical reflection principle, forming an isometric display effect, so that the display content seems to be located at infinity. However, the traditional HUD is large in size, heavy in weight, and depends on specific optical elements, which is not suitable for new vehicles with high integration requirements. With the development of transparent OLED technology and machine vision technology, the HUD system based on transparent display screen provides new possibilities, but due to the fixed position of the transparent display screen, it is difficult to achieve the same infinite imaging effect as the traditional HUD. Therefore, how to realize the same imaging effect as the traditional HUD in the transparent OLED display screen becomes a key technical challenge. At present, there is no solution of the HUD system combining machine vision and transparent OLED technology.

[0003] Therefore, it is necessary to improve one or more problems in the above-mentioned related technical solutions.

[0004] It should be noted that this part aims to provide background or context for the technical solutions of the present disclosure stated in the claims. The description herein is not admitted to be prior art merely because it is included in this part. SUMMARY

[0005] The purpose of the embodiment of the present disclosure is to provide a transparent OLED head-up display system and a control method thereof, thereby at least overcoming one or more problems caused by the limitations and defects of the related art to some extent.

[0006] According to a first aspect of the embodiment of the present disclosure, a transparent OLED head-up display system is provided, which comprises:

[0007] an eye tracking module, a physiological feature detection module, a display content adjustment module and a transparent OLED display screen; wherein the display content adjustment module is electrically connected with the eye tracking module, the physiological feature detection module and the transparent OLED display screen respectively;

[0008] The eye tracking module is configured to acquire head position data and viewing angle data of a driver.

[0009] The physiological feature detection module is configured to acquire physiological feature data of the driver.

[0010] The display content adjustment module comprises a parallax compensation unit and a display optimization unit, the parallax compensation unit is electrically connected with the eye tracking module and the display optimization unit respectively, and the display optimization unit is electrically connected with the physiological characteristic detection module.

[0011] The parallax compensation unit is configured to output a parallax compensation parameter according to the head position data and the visual angle data.

[0012] The display optimization unit is configured to output a display parameter according to the physiological characteristic data and environmental information, and generate display image data according to the display parameter and the parallax compensation parameter.

[0013] The transparent OLED display screen is electrically connected with the display optimization unit, and is configured to directly display information in the driver's field of view.

[0014] Further, the eye tracking module at least comprises:

[0015] A visible light camera, an infrared camera and a millimeter wave radar.

[0016] According to a second aspect of the embodiments of the present disclosure, a control method of a transparent OLED head-up display system is provided, and the method comprises:

[0017] The head position data and the visual angle data of the driver are monitored in real time by the eye tracking module, and the head position data and the visual angle data are transmitted to the display content adjustment module.

[0018] The physiological characteristic data of the driver are acquired in real time by the physiological characteristic detection module, and the physiological characteristic data are transmitted to the display content adjustment module.

[0019] The parallax compensation unit in the display content adjustment module calculates a parallax compensation parameter caused by head movement according to the head position data and the visual angle data, the display optimization unit in the display content adjustment module outputs a display parameter based on the physiological characteristic data and environmental information by using a driver physiological and psychological state evaluation algorithm, generates display image data according to the parallax compensation parameter and the display parameter, and transmits the display image data to the transparent OLED display screen.

[0020] The transparent OLED display screen parses the display image data and displays information.

[0021] Further, in the step of calculating a parallax compensation parameter caused by head movement according to the head position data and the visual angle data, the step comprises:

[0022] Based on the head position data, the head offset along the X, Y, and Z axes is obtained. Then, based on the head offset along the X, Y, and Z axes and the viewing angle data, the distance d from the driver's current eye position to the transparent OLED display screen is calculated.

[0023]

[0024] Where d0 is the initial reference distance, and Δx, Δy and Δz are the offsets of the head on the X, Y and Z axes, respectively;

[0025] Calculate the horizontal offset angle of the HUD characters in the driver's field of vision based on the distance d from the driver's current eye position to the transparent OLED display. and vertical offset angle β :

[0026] The horizontal offset angle for:

[0027]

[0028] The vertical offset angle β for:

[0029]

[0030] Based on the horizontal offset angle and the vertical offset angle β Calculate the horizontal and vertical positions of the HUD characters after parallax compensation:

[0031]

[0032] in, To determine the horizontal position of the HUD characters before parallax compensation, The vertical position of the HUD characters before parallax compensation. The horizontal position of the HUD characters after parallax compensation. The vertical position of the HUD characters after parallax compensation is L, which is the distance from the OLED display to the driver's eyes before the driver moves.

[0033] The parallax compensation parameters are obtained based on the horizontal and vertical positions of the HUD characters after parallax compensation.

[0034] Furthermore, the physiological characteristic data includes at least blood pressure, heart rate, eye movement status, and respiratory rate; the display parameters include at least brightness, contrast, and complexity.

[0035] Furthermore, the step of outputting display parameters using a driver's physiological and psychological state assessment algorithm based on the aforementioned physiological characteristic data and environmental information includes:

[0036] Based on base brightness Blood pressure regulation function Heart rate regulation function Eye-tracking accommodation function respiratory rate regulation function Adjustments are made to achieve the desired display brightness, contrast, and complexity.

[0037] The display parameters are obtained based on the display brightness, the display contrast, and the display complexity.

[0038] Furthermore, the expression for the display brightness is:

[0039]

[0040] The expression for the display contrast is:

[0041]

[0042] in, To display contrast, Basic contrast;

[0043] The display complexity includes a simplified mode and a full-screen mode. When the display brightness is greater than or equal to a first preset value and the display contrast is greater than or equal to a second preset value, the simplified mode is used; otherwise, the full-screen mode is used.

[0044] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0045] In the embodiments of this disclosure, the aforementioned transparent OLED head-up display system and its control method achieve, on the one hand, the driver's head position and viewing angle are monitored in real time by a camera. Combined with parallax compensation algorithms and dynamic symbol adjustment technology, the same isometric imaging effect as a traditional HUD is achieved, making the image imaging distance approximately infinite. On the other hand, the system has the function of dynamically adjusting the displayed content. It can optimize the transparency, color, and salience of the displayed content in real time according to the driver's physiological characteristics (such as blood pressure, heart rate, eye movement, respiratory rate, etc.), thereby personalized enhancing the driver's perception of key information and improving driving safety. Attached Figure Description

[0046] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0047] Figure 1 This diagram illustrates the structure of a transparent OLED head-up display system according to an exemplary embodiment of the present disclosure.

[0048] Figure 2 This diagram illustrates a working scenario of the transparent OLED head-up display system in an exemplary embodiment of this disclosure.

[0049] Figure 3 A step diagram illustrating a control method for a transparent OLED head-up display system according to an exemplary embodiment of the present disclosure is shown. Detailed Implementation

[0050] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0051] Furthermore, the accompanying drawings are merely illustrative diagrams of embodiments of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0052] This example implementation first provides a transparent OLED head-up display system. (See reference...) Figure 1 As shown, the transparent OLED head-up display system may include: an eye-tracking module, a physiological feature detection module, a display content adjustment module, and a transparent OLED display screen; wherein, the display content adjustment module is electrically connected to the eye-tracking module, the physiological feature detection module, and the transparent OLED display screen respectively;

[0053] The eye-tracking module is used to acquire the driver's head position data and viewing angle data;

[0054] The physiological feature detection module is used to acquire the driver's physiological feature data;

[0055] The display content adjustment module includes a parallax compensation unit and a display optimization unit. The parallax compensation unit is electrically connected to both the eye-tracking module and the display optimization unit, and the display optimization unit is electrically connected to the physiological feature detection module. The parallax compensation unit is used to output parallax compensation parameters based on the head position data and the viewing angle data. The display optimization unit is used to output display parameters based on the physiological feature data and environmental information, and to generate display image data based on the display parameters and the parallax compensation parameters.

[0056] The transparent OLED display screen is electrically connected to the display optimization unit and is used to directly display information in the driver's field of vision.

[0057] The aforementioned transparent OLED head-up display system achieves two key benefits. First, it monitors the driver's head position and viewing angle in real time via a camera. Combined with parallax compensation algorithms and dynamic symbol adjustment technology, it achieves the same isometric imaging effect as traditional HUDs, making the image imaging distance nearly infinite. Second, the system dynamically adjusts the displayed content, optimizing its transparency, color, and saturation in real time based on the driver's physiological characteristics (such as blood pressure, heart rate, eye movement, and respiratory rate). This personalized approach enhances the driver's perception of critical information and improves driving safety.

[0058] Below, we will refer to Figures 1 to 2 The various parts of the transparent OLED head-up display system described in this example embodiment will be explained in more detail.

[0059] In one embodiment, such as Figure 2 As shown, the transparent OLED display is used to display information directly in the driver's field of vision and can automatically adjust the brightness, contrast and transparency of the display according to the ambient lighting conditions to adapt to the field of vision requirements in different driving environments.

[0060] The eye-tracking component (i.e., eye-tracking module) includes at least two cameras and other sensors (such as infrared cameras and millimeter-wave radar) to monitor the driver's head and eye positions in real time. It obtains the driver's head and eye positions through image recognition, image classification, and target tracking algorithms, and sends this head position and viewing angle information to a display content adjustment component to ensure that the displayed information is consistent with the driver's line of sight. The camera resolution, focal length, and mounting angle are optimized based on the vehicle or aircraft's interior layout and the driver's position. The eye-tracking component may include visible light cameras, infrared cameras, and millimeter-wave radar to ensure accurate capture of the driver's head position and viewing angle in various environments and improve the overall reliability of the system.

[0061] The display content adjustment component (i.e., the display content adjustment module) dynamically adjusts the content displayed on the transparent OLED screen based on the driver's head position, viewing angle, ambient lighting conditions, and the driver's physiological and emotional characteristics. This includes the position, angle, size, brightness, transparency, and color. The component also compensates for parallax by calculating parallax to ensure the accuracy and consistency of the displayed content across the driver's different viewing angles, thereby achieving the same isometric imaging effect as traditional HUDs.

[0062] In one embodiment, such as Figure 2 As shown, the parallax compensation unit uses driver head position data and viewing angle information to calculate and output parallax compensation parameters. These parameters allow the display content adjustment component to dynamically adjust the position of the displayed content, ensuring that the HUD characters observed by the driver remain at an equiangular angle to the outside world under different viewing positions. The parallax compensation parameters output by the parallax compensation algorithm enable the display content adjustment component to use the display position adjustment parameters to adjust the position of the displayed characters, achieving an equiangular effect.

[0063] The display optimization unit receives feedback data from the ambient light sensor, as well as the driver's physiological and emotional characteristics (including blood pressure, heart rate, eye movement, and respiratory rate). Based on the display mode switching command output by the driver's physiological and psychological state assessment algorithm, it automatically adjusts the display parameters of the transparent OLED display (including brightness, contrast, display complexity, etc.) to ensure that information is clearly visible under various lighting conditions.

[0064] In one embodiment, the camera layout in the eye-tracking component is optimized to ensure accurate head position capture under various driver seating positions and viewing angles, thereby supporting the system's precise display adjustment capabilities.

[0065] In one embodiment, the overall transparency of the transparent OLED display or the transparency and color of a single symbol can be dynamically adjusted according to driving environment conditions and the driver's physiological characteristics (such as blood pressure, heart rate, eye movement, respiratory rate, etc.) to enhance or weaken the visual effect of specific displayed content, ensuring that the driver can obtain key driving information under the most suitable visual conditions.

[0066] In one embodiment, the system also has a safety mechanism that can automatically shut down the display screen and issue visual or audible warning signals in the event of system failure, display screen damage, or other abnormalities, ensuring that the driver's field of vision is not affected, while providing redundant display paths to ensure the continuous availability of information.

[0067] Furthermore, this example embodiment also provides a control method for a transparent OLED head-up display system. (See reference...) Figure 3 As shown, the control method of the transparent OLED head-up display system may include steps S101 to S104.

[0068] Step S101: Use the eye-tracking module to monitor the driver's head position data and viewing angle data in real time, and transmit the head position data and viewing angle data to the display content adjustment module;

[0069] Step S102: Use the physiological feature detection module to acquire the driver's physiological feature data in real time, and transmit the physiological feature data to the display content adjustment module;

[0070] Step S103: The parallax compensation unit in the display content adjustment module calculates the parallax compensation parameters caused by head movement based on head position data and viewing angle data. The display optimization unit in the display content adjustment module outputs display parameters based on physiological characteristic data and environmental information using the driver's physiological and psychological state assessment algorithm. It generates display image data based on the parallax compensation parameters and display parameters and transmits it to the transparent OLED display screen.

[0071] Step S104: The transparent OLED display screen parses and displays image data and information.

[0072] In step S101, the eye-tracking component is activated to monitor the driver's head position and viewing angle in real time, and the relevant data is transmitted to the display content adjustment component.

[0073] In step S102, the physiological feature detection module is activated to acquire the driver's physiological feature data in real time and transmit the physiological feature data to the display content adjustment module.

[0074] In steps S103 and S104, the display content adjustment component dynamically adjusts the position, angle, and size of the display content on the transparent OLED display screen based on eye-tracking data, and activates the imaging distance simulation function to ensure the infinity imaging effect of the display content.

[0075] The parallax compensation unit calculates and compensates for parallax caused by head movement, and adjusts the position and angle of the displayed content in real time to ensure the accuracy and consistency of the displayed content under different viewing angles.

[0076] The display optimization unit automatically adjusts the brightness, contrast, and transparency of the transparent OLED display based on physiological data and ambient lighting conditions to ensure the clarity of the displayed content under various lighting conditions.

[0077] In step S105, the display content is dynamically optimized according to the driver's perspective and environmental changes to provide a head-up display effect consistent with traditional HUDs, and the transparency and color of the display content are adjusted in real time as needed during driving.

[0078] The system monitors the operating status in real time. When a fault or abnormal display is detected, a safety mechanism is activated, automatically turning off the display and issuing a warning signal to ensure the driver's visibility.

[0079] In one embodiment, the steps for calculating the disparity compensation parameters are as follows:

[0080] Based on head position data, the head offset along the X, Y, and Z axes is obtained. Then, based on these head offsets and the viewing angle data, the distance d from the driver's current eye position to the transparent OLED display is calculated.

[0081]

[0082] Where d0 is the initial reference distance, and Δx, Δy and Δz are the offsets of the head on the X, Y and Z axes, respectively;

[0083] Calculate the horizontal offset angle of the HUD characters in the driver's field of vision based on the distance d from the driver's current eye position to the transparent OLED display. and vertical offset angle β :

[0084] Horizontal offset angle for:

[0085]

[0086] Vertical offset angle β for:

[0087]

[0088] Based on the horizontal offset angle and vertical offset angle β Calculate the horizontal and vertical positions of the HUD characters after parallax compensation:

[0089]

[0090] in, To determine the horizontal position of the HUD characters before parallax compensation, The vertical position of the HUD characters before parallax compensation. The horizontal position of the HUD characters after parallax compensation. The vertical position of the HUD characters after parallax compensation is L, which is the distance from the OLED display to the driver's eyes before the driver moves.

[0091] The parallax compensation parameters are obtained based on the horizontal and vertical positions of the HUD characters after parallax compensation.

[0092] In one embodiment, the driver's physiological and psychological state assessment algorithm includes:

[0093] The calculation steps of the brightness adjustment algorithm are as follows:

[0094] Display brightness Based on base brightness Blood pressure regulation function Heart rate regulation function Eye-tracking accommodation function respiratory rate regulation function Adjustments are made, and each adjustment function has a corresponding adjustment weight. The combined function is shown below:

[0095]

[0096] in:

[0097] Blood pressure regulation function As shown below, assuming the pilot's blood pressure is at the standard 120 / 80, when the diastolic blood pressure (BPdia) is higher than 90 or the systolic blood pressure (BPsys) is greater than 140, the following adjustment formula applies, where ΔL is tentatively set to 0.2 times Lbase:

[0098]

[0099] Heart rate regulation function As shown below, assuming a pilot's normal heart rate range is 60-100 bpm, brightness is increased when the heart rate is too high and decreased when the heart rate is too low, conforming to the following adjustment formula:

[0100]

[0101] Eye movement state adjustment function The determination is based on the pilot's eye movement stability. To assess "eye movement stability" and "eye movement instability," the following key parameters are considered:

[0102] Fixation Change Rate (FCR):

[0103] The rate of change of fixation point refers to the number of times the eyes change their fixation point on a screen or scene per unit of time. Frequent changes in fixation point usually indicate distraction or instability.

[0104] Stable: The fixation point changes little, no more than twice per second.

[0105] Unstable: The fixation point changes frequently, more than 5 times per second.

[0106] Fixation Duration (FD):

[0107] Fixation duration refers to the time the eyes remain focused on the same point. When stable, the fixation point usually lasts for a relatively long time.

[0108] Stable: Each fixation lasts for more than 500 milliseconds.

[0109] Unstable: The duration of each fixation is less than 300 milliseconds.

[0110] Saccadic frequency (SF):

[0111] Eye movement frequency refers to the number of times the eyeballs move rapidly per unit of time, which usually occurs frequently when attention is not focused.

[0112] Stable: Eye movement frequency less than 3 times / second.

[0113] Unstable: Eye movement frequency greater than 6 times / second.

[0114] The formula for determining eye movement stability is as follows:

[0115]

[0116] Among them, w1, w2, and w3 are weighting coefficients, which are set to 0.2, 0.4, and 0.4, respectively.

[0117] Eye movement state adjustment function As shown below:

[0118]

[0119] respiratory rate regulation function As shown below, assume a pilot's normal breathing rate is 12-20 breaths / minute. High-frequency breathing: RR > 25 breaths / minute. When the breathing rate is high, increase brightness. This conforms to the following adjustment formula:

[0120]

[0121] The contrast adjustment algorithm uses a similar adjustment model and method to the brightness adjustment algorithm, as shown below. To display contrast, Based on the base contrast.

[0122]

[0123] The display complexity adjustment has two effects: Simple Mode and Full Screen Mode. When the brightness is adjusted to High Brightness Mode and the contrast is adjusted to High Contrast Mode, Simple Mode is used; otherwise, Full Screen Mode is used.

[0124] The aforementioned transparent OLED head-up display system achieves two key benefits. First, it monitors the driver's head position and viewing angle in real time via a camera. Combined with parallax compensation algorithms and dynamic symbol adjustment technology, it achieves the same isometric imaging effect as traditional HUDs, making the image imaging distance nearly infinite. Second, the system dynamically adjusts the displayed content, optimizing its transparency, color, and saturation in real time based on the driver's physiological characteristics (such as blood pressure, heart rate, eye movement, and respiratory rate). This personalized approach enhances the driver's perception of critical information and improves driving safety.

[0125] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., in the above description indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure.

[0126] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0127] In the embodiments of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0128] In embodiments of this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0129] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0130] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A transparent OLED head-up display system, characterized by, The system comprises: The eye tracking module, the physiological characteristic detection module, the display content adjustment module and the transparent OLED display screen; wherein the display content adjustment module is electrically connected with the eye tracking module, the physiological characteristic detection module and the transparent OLED display screen respectively; The eye tracking module is used for acquiring head position data and visual angle data of the driver; The physiological characteristic detection module is used for acquiring physiological characteristic data of the driver; The display content adjustment module comprises a parallax compensation unit and a display optimization unit, the parallax compensation unit is electrically connected with the eye tracking module and the display optimization unit respectively, and the display optimization unit is electrically connected with the physiological characteristic detection module; wherein The parallax compensation unit is used for outputting parallax compensation parameters according to the head position data and the visual angle data; a display optimization unit configured to adjust a display brightness, a display contrast and a display complexity according to the base brightness , a blood pressure regulation function , a heart rate regulation function , an eye movement regulation function , a respiration rate regulation function , to obtain display parameters; and generate display image data according to the display parameters and the parallax compensation parameters; wherein, Display luminance The expression for the display luminance is: The expression of the display contrast is: In the formula, to display contrast, is the base contrast; The display complexity comprises a simple mode and a full screen mode, when the display brightness is greater than or equal to a first preset value, and the display contrast is greater than or equal to a second preset value, the simple mode is adopted; otherwise, the full screen mode is adopted; The transparent OLED display screen is electrically connected with the display optimization unit, and is used for directly displaying information in the driver's field of view.

2. The transparent OLED head-up display system of claim 1, wherein, The eye tracking module at least comprises: The visible light camera, the infrared camera and the millimeter wave radar.

3. A control method of a transparent OLED head-up display system, characterized by, The method comprises: Real-time monitoring of the head position data and the visual angle data of the driver by the eye tracking module, and transmitting the head position data and the visual angle data to the display content adjustment module; Real-time acquisition of the physiological characteristic data of the driver by the physiological characteristic detection module, and transmitting the physiological characteristic data to the display content adjustment module; The parallax compensation unit in the display content adjustment module calculates the parallax compensation parameters caused by the head movement according to the head position data and the visual angle data, the display optimization unit in the display content adjustment module outputs the display parameters based on the physiological characteristic data and the environmental information by using the driver physiological and psychological state evaluation algorithm, generates display image data according to the parallax compensation parameters and the display parameters, and transmits the display image data to the transparent OLED display screen; The transparent OLED display screen parses the display image data and displays information; In the step of outputting the display parameters based on the physiological characteristic data and the environmental information by using the driver physiological and psychological state evaluation algorithm, comprising: According to the base luminance , a blood pressure regulation function , a heart rate regulation function , an eye movement regulation function , a respiration rate regulation function is adjusted to obtain a display luminance, a display contrast and a display complexity; According to the display brightness, the display contrast and the display complexity, the display parameters are obtained; Display luminance The expression for the display luminance is: The expression of the display contrast is: wherein for display contrast, for base contrast; The display complexity comprises a simple mode and a full screen mode, when the display brightness is greater than or equal to a first preset value, and the display contrast is greater than or equal to a second preset value, the simple mode is adopted; otherwise, the full screen mode is adopted.

4. The control method of the transparent OLED head-up display system according to claim 3, wherein, In the step of calculating the parallax compensation parameters caused by the head movement according to the head position data and the visual angle data, comprising: According to the head position data, the offset of the head in X, Y and Z three axes is obtained, and according to the offset of the head in X, Y and Z three axes and the visual angle data, the distance d from the current position of the driver's eyes to the transparent OLED display screen is calculated: Wherein d0 is the initial reference distance, Δx, Δy and Δz are the offset of the head in X, Y and Z three axes respectively; According to the distance d from the current position of the driver's eyes to the transparent OLED display screen, the horizontal offset angle of the HUD character in the driver's field of view is calculated and the vertical offset angle β : horizontal offset angle is: Vertical offset angle β is: According to the horizontal offset angle and the vertical offset angle β , a horizontal position of the parallax-compensated HUD character and a vertical position of the parallax-compensated HUD character are calculated: wherein, L is the distance from the driver to the eyes of the driver before the HUD character is parallax compensated, L is the distance from the driver to the eyes of the driver before the HUD character is parallax compensated, L is the distance from the driver to the eyes of the driver after the HUD character is parallax compensated, L is the distance from the driver to the eyes of the driver after the HUD character is parallax compensated, According to the horizontal position of the HUD character after parallax compensation and the vertical position of the HUD character after parallax compensation, the parallax compensation parameters are obtained.

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