Flexible self-luminous display device

Abstract

A flexible self-luminous display device comprises at least one flexible self-luminous display screen; the at least one adjusting unit and the flexible self-luminous display screen are correspondingly arranged on the back face of the flexible self-luminous display screen, and the adjusting unit independently adjusts the curvature of the flexible self-luminous display screen in the mode that the corresponding flexible self-luminous display screen is tightened or loosened. And the adjusting unit independently adjusts the orientation of the flexible self-luminous display screen in a manner of translating one end of the corresponding flexible self-luminous display screen. Thus, the orientation and curvature of the screen can be flexibly adjusted with a simple structure.

Description

Technical Field

[0001] The present application belongs to the field of intelligent display, and specifically relates to a flexible self-luminous display device. Background Art

[0002] As we all know, liquid crystal displays (LCDs) are commonly used in current aircraft cockpits. However, due to display principles, LCD screens cannot be completely shielded from light. There are problems with gray backlight and edge light leakage, which makes the screen still slightly bright in the dark state, and cannot form a striking contrast when it is necessary to attract the pilot's attention. Moreover, because the entire backlight panel must be powered to serve as a white light source, there is also backlight in areas that do not need to be illuminated (such as black), resulting in a waste of electricity and failing to fundamentally solve the problem of black not emitting light. Especially in emergency situations, in order to save power consumption, multiple display screens will be reconstructed. Usually, the display screen on the driver's side will be retained while the display screen on the passenger side will be turned off. This will inevitably make it more difficult for the passenger side to receive information and cause information loss. In addition, the backlight panel of an LCD display is usually made of a rigid and thick material, and its shape and curvature cannot be changed. This makes the screen assembly require a high level of space on the aircraft and difficult to adjust. This not only makes it impossible to flexibly adjust the screen according to the individual differences in the pilot's size and body shape, but also easily causes reflections and glare on the screen during flight. In severe cases, it may affect the pilot's recognition of the screen graphics. Summary of the Invention

[0003] Technical problem to be solved by the invention

[0004] The present application is formed to solve the above-mentioned technical problems, and its purpose is to provide a flexible self-luminous display device that can flexibly adjust the screen orientation and curvature with a simple structure.

[0005] Technical solutions used to solve technical problems

[0006] The present application provides a flexible self-luminous display device, comprising: at least one flexible self-luminous display screen; and at least one adjustment unit, which is configured on the back side of the flexible self-luminous display screen corresponding to the flexible self-luminous display screen, the adjustment unit independently adjusting the curvature of the corresponding flexible self-luminous display screen by tightening or loosening the corresponding flexible self-luminous display screen, and the adjustment unit independently adjusting the orientation of the corresponding flexible self-luminous display screen by translating one end of the corresponding flexible self-luminous display screen.

[0007] Preferably, the adjustment unit includes: a driving mechanism that provides power; a transmission mechanism, one end of which is connected to the driving mechanism for transmitting the power of the driving mechanism; a rotating wheel mechanism that is connected to the other end of the transmission mechanism for adjusting the orientation and curvature of the flexible self-luminous display screen; and a locking mechanism that is installed between the rotating wheel mechanism and the transmission mechanism for switching the rotating wheel mechanism and the transmission mechanism between engagement and non-engagement.

[0008] Preferably, the driving mechanism is a driving motor, and the transmission mechanism is a transmission shaft connected to the driving motor.

[0009] Preferably, the wheel mechanism includes a pair of outer ring wheels, two ends of the flexible self-luminous display screen are respectively wound around and fixed on the pair of outer ring wheels, and are respectively fixedly connected to the other end of the transmission mechanism.

[0010] Preferably, the driving mechanism drives the transmission mechanism to drive the pair of outer ring wheels to rotate in relatively opposite directions, so that the curvature of the flexible self-luminous display screen between the pair of outer ring wheels changes between tension and relaxation of the screen.

[0011] Preferably, the adjustment unit further includes a central spring, and the central spring is installed in a stretched state at approximately the center of the back surface of the flexible self-luminous display screen.

[0012] Preferably, the driving mechanism drives the transmission mechanism to drive the pair of outer ring wheels to rotate in a relatively opposite manner, and the central spring applies force to the flexible self-luminous display screen under the action of the restoring force, so that the curvature of the flexible self-luminous display screen between the pair of outer ring wheels changes smoothly between the tension and relaxation of the screen.

[0013] Preferably, the wheel mechanism also includes: an inner ring gear, which is rotatably mounted on the transmission mechanism in a coaxial configuration with one of the outer ring wheels in a pair of the outer ring wheels; and a rack, which is always engaged with the inner ring gear, and the inner ring gear is formed into a structure that cannot be displaced relative to the outer ring wheel but can rotate independently of each other, and the inner ring gear slides on the rack through rotation, thereby generating lateral displacement together with the outer ring wheel.

[0014] Preferably, the locking mechanism includes: a clamp, which is arranged at a position of the inner ring gear opposite to the transmission mechanism in a manner of protruding toward the transmission mechanism; and a slot, which is formed in an inwardly recessed manner at a position on the transmission mechanism corresponding to the slot. When the clamp is engaged with the slot, the inner ring gear engages with the transmission mechanism, so that the inner ring gear rotates with the rotation of the transmission mechanism. When the clamp is disengaged from the slot, the inner ring gear does not engage with the transmission mechanism, so that the inner ring gear does not rotate with the rotation of the transmission mechanism.

[0015] Preferably, the inner ring gear is engaged with the transmission mechanism by inserting the clamp into the clamping slot.

[0016] The driving mechanism drives the transmission mechanism to drive the inner ring gear and the outer ring wheel coaxially configured with the inner ring gear to rotate, so that the inner ring gear and the outer ring wheel are displaced along the rack together, so that the orientation of the flexible self-luminous display screen between a pair of outer ring wheels changes under the premise that the curvature remains unchanged.

[0017] Preferably, the flexible self-luminous display is a flexible OLED display, which includes: a plurality of OLED pixels arranged in an array; and a plurality of OLED pixel driving circuits, which are independently arranged in a one-to-one correspondence with the plurality of OLED pixels and provide power. The OLED pixel is composed of three sub-pixels, which are respectively an independent red light-emitting layer, a green light-emitting layer and a blue light-emitting layer, and the brightness of the sub-pixels is controlled by the OLED pixel driving circuit. The OLED pixel driving circuit stops the power supply to the OLED pixel in the black background area of the OLED display, and maintains the power supply to the OLED pixel in the color content area.

[0018] Preferably, the flexible self-luminous display device further includes at least one control panel.

[0019] The control panel is configured corresponding to the flexible self-luminous display screen and includes at least a curvature adjusting component and an orientation-curvature assembly component.

[0020] Preferably, the flexible self-luminous display device is provided on an instrument panel in an aircraft cockpit.

[0021] Based on the above, the present application provides a flexible self-luminous display device suitable for civil aircraft instrument panels, which has high adaptability, good control experience and energy optimization. Specifically, through OLED pixel-level screen-off display control, it effectively solves the problems of unsaturated graying of black areas, light leakage at the edges of the screen, and overall glare in dark environments, and significantly improves the display effect and system reliability in dark environments. By activating only the pixels corresponding to key information, the main and co-pilot displays continue to be powered in the emergency power supply state, while ensuring the transmission of necessary information, and maximizing energy conservation and consumption reduction. Through the adjustment structure with separated inner and outer circles, dynamic adjustment of orientation and curvature can be achieved lightly and flexibly, meeting the visual requirements of different pilots' eye positions and the direction of incident light in the cockpit, improving readability and visual comfort, and there is no need to change the overall layout of the cockpit. It is only necessary to reserve a cavity for installing the display device, and it is easy to repair and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a flexible self-luminous display device according to an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the principle of a flexible self-luminous display;

[0024] Figure 3 It is a structural diagram of the regulating unit;

[0025] Figure 4 is a schematic diagram of curvature regulation;

[0026] Figure 5 Schematic diagram of the combined orientation-curvature regulation.

[0027] Explanation of symbols:

[0028] 11 Flexible self-luminous display screen; 12 Control panel; 121 Curvature adjustment member; 122 Orientation-curvature assembly; 123 Screen-off display member; 131 Drive motor; 132 Transmission shaft; 133 Outer ring wheel; 134 Inner ring gear; 135 Rack; 136 Central spring; 137 Pin; 138 Fixture; 139 Slot. DETAILED DESCRIPTION

[0029] The present application is further described below in conjunction with the following embodiments. It should be understood that the following embodiments are only used to illustrate the present application and are not intended to limit the present application. The same or corresponding reference numerals in the figures represent the same components, and repeated descriptions are omitted. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this application and are not to be construed as limitations on this application. The terms "installed," "connected," and "connected" should be understood broadly, and those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0031] The following, combined Figures 1 to 5 A flexible self-luminous display device according to one embodiment of the present application is described. The flexible self-luminous display device is mounted on an instrument panel in an aircraft cockpit and is used to display information to the pilot and co-pilot. In this embodiment, the flexible self-luminous display device includes: at least one flexible self-luminous display screen; at least one control panel configured to correspond to the at least one flexible self-luminous display screen; and at least one adjustment unit mounted to correspond to the at least one flexible self-luminous display screen and the at least one control panel, and capable of independently adjusting the orientation and curvature of the flexible self-luminous display screen.

[0032] Flexible self-luminous display

[0033] like Figure 1 As shown, the flexible self-luminous display device serves as an IDU (Integrated Display Unit) for integrating and displaying key flight information of the aircraft, and four flexible self-luminous display screens are provided on the instrument panel of a civil aircraft. In this embodiment, a flexible organic light emitting diode (OLED) display screen 11 is used as a flexible self-luminous display screen. Specifically, OLED is a self-luminous display technology, which is composed of a substrate, an anode (hole transport layer), a light-emitting layer, a cathode (electron transport layer) and an encapsulation layer in sequence. The light-emitting layer is composed of an organic material, which can be, for example, a small molecule or a polymer material, and thus has a certain degree of flexibility. When current passes through the light-emitting layer, electrons and holes combine in the light-emitting layer to generate excitons and release photons, thereby realizing self-luminescence, and the color displayed varies depending on the energy of the photons (i.e., the energy level difference of the organic material).

[0034] like Figure 2As shown, in this embodiment, the OLED display screen 11 is composed of a plurality of OLED pixels in an array. In addition, an independent OLED pixel driving circuit is provided for each OLED pixel to achieve independent control at the pixel level. Furthermore, each OLED pixel is composed of three sub-pixels, which are respectively an independent red light emitting layer, an independent green light emitting layer, and an independent blue light emitting layer. By controlling the brightness of the sub-pixels of each OLED pixel by the OLED pixel driving circuit, all colors can be mixed to present different colors. As an example, when the organic material is Ir(piq)3, the luminous color is red, when the organic material is Ir(ppy)3, the luminous color is green, and when the organic material is FIrpic, the luminous color is blue.

[0035] Compared to traditional LCD displays, the OLED display 11 can independently control the brightness and color of each pixel, and without the need for a backlight, it can achieve extremely high contrast and true blacks even when the screen is off. Furthermore, the OLED display 11 offers advantages such as wide viewing angles, fast response, a thin structure, and low power consumption, making it particularly suitable for displaying high-speed dynamic content and dark scenes. Furthermore, the OLED display 11's flexibility significantly enhances its adjustability and adaptability within an aircraft cockpit.

[0036] <Adjustment Unit>

[0037] like Figure 3 、 4 As shown in , 5, the adjustment unit includes a driving mechanism, a transmission mechanism, a rotating wheel mechanism and a locking mechanism.

[0038] Figure 3 In the figure, (a) is a schematic diagram showing the structure of the rotating mechanism, (b) is a diagram showing the rotating mechanism meshing with the transmission mechanism without the locking mechanism, and (c) is a diagram showing the rotating mechanism meshing with the transmission mechanism via the locking mechanism. Among them, (b) and (c) are from the same perspective, and both are perpendicular to the perspective of (a). That is, assuming that the perspective of (a) is the main view, the perspectives of (b) and (c) are equivalent to side views. In addition, in order to simplify the diagram, Figure 3 Only one outer ring rotating wheel 133 is shown, and the OLED display screen 11 wrapped around the outer ring rotating wheel 133 is omitted.

[0039] In this embodiment, a drive motor 131 is used as a driving mechanism (i.e., a power source) to provide power. The type of motor is not specifically limited and can be selected according to specific needs. For example, a permanent magnet synchronous motor, a stepper motor, and a servo motor can be selected. The transmission shaft 132 serves as a transmission mechanism, one end of which is connected to the drive motor 131, and the other end extends from the drive motor 131, so that the rotational motion and torque output by the drive motor 131 are transmitted backward (such as a wheel mechanism and a locking mechanism) via the transmission shaft 132. In addition, the transmission shaft 132 and the drive motor 131 can be directly mechanically connected via a coupling, etc., or can be indirectly connected via a belt, etc., or can be connected via a spline, etc., without specific limitation. In addition, Figure 3 Only one drive motor 131 and one transmission shaft 132 are schematically shown, but the present invention is not limited thereto. For example, a single drive motor 131 can synchronously drive multiple transmission shafts 132 through a gear train, or multiple servo motors and transmission shafts 132 can be synchronously controlled through a controller and a CAN bus. Furthermore, the drive motor 131 can be disengaged by disengaging the gear train or by using a controller. All of the above can be achieved through known techniques and will not be elaborated on here.

[0040] The wheel mechanism includes a pair of outer-ring wheels 133, an inner-ring gear 134 coaxially arranged with one of the outer-ring wheels 133, and a rack 135 permanently meshing with the inner-ring gear 134. The outer-ring wheels 133 and the inner-ring gear 134 are designed to prevent relative displacement but to rotate independently of each other. For example, a relative rotation support element can be provided between the outer-ring wheels 133 and the inner-ring gear 134. This relative rotation support element can be, for example, a crossed roller bearing, a thin-walled bearing, or a needle roller bearing.

[0041] like Figure 3 As shown, a pair of outer ring wheels 133 are fixedly connected to the other end of the transmission shaft 132, so as to rotate synchronously but in the opposite direction with the rotation of the driving motor 131. Figure 4 As shown, the two ends of the OLED display screen 11 are wound and fixed on a pair of outer ring wheels 133. For example, the two ends of the OLED display screen 11 can be fixed to the pair of outer ring wheels 133 by pins 137, and the OLED display screen 11 can be tightened or loosened by rotating the pair of outer ring wheels 133 in opposite directions (i.e., one clockwise and the other counterclockwise).

[0042] The adjustment unit also includes a central spring 136. Central spring 136 is positioned in a stretched state between the mounting surface and the OLED display 11. Specifically, one end of central spring 136 is fixed to the mounting surface, while the other end is connected to the approximate center of the back surface of the OLED display 11. The mounting surface for central spring 136 can be any surface that provides both fixing and support, such as a side wall of the cockpit or a frame.

[0043] like Figure 3 As shown, the inner ring gear 134 is mounted concentrically and coaxially (in this embodiment, the transmission shaft 132) with one of the pair of outer ring gears 133 (the upper outer ring gear 133 in the figure). A rack 135 is fixed to a mounting surface, permanently meshing with the inner ring gear 134. Rotation of the inner ring gear 134 causes the rack 135 to slide on it, resulting in lateral displacement. The mounting surface for the rack 135 can be any surface that provides both fixing and support, such as a side wall of the cockpit or a frame.

[0044] In addition, the inner ring gear 134 is rotatably sleeved on the outside of the transmission shaft 132. When the inner ring gear 134 is engaged with the transmission shaft 132 through a locking mechanism, the inner ring gear 134 becomes unable to rotate relative to the transmission shaft 132. Specifically, the locking mechanism includes a clamp 138 and a clamping groove 139. The clamp 138 is provided at a position of the inner ring gear 134 opposite to the transmission shaft 132 in a manner of protruding toward the transmission shaft 132, and the clamping groove 139 is formed at a position on the transmission shaft 132 corresponding to the clamping groove 139 in a manner of being recessed inward. More specifically, as Figure 3 As shown, the clamp 138 is arranged along the inner circumference of the inner ring gear 134 and can be extended and retracted in the radial direction of the transmission shaft 132. However, the clamp 138 is not limited to this structure and can be formed into a structure that engages with the clamping slot 139. For example, an electromagnetic locking structure can also be used. When the clamp 138 is engaged with the clamping slot 139, the inner ring gear 134 meshes with the transmission shaft 132, thereby rotating with the rotation of the transmission shaft 132. In other words, the inner ring gear 134 can rotate together. Conversely, when the clamp 138 is disengaged from the clamping slot 139, the inner ring gear 134 is no longer engaged with the transmission shaft 132 and does not rotate with the rotation of the transmission shaft 132.

[0045] Therefore, the wheel mechanism has two working modes. When the inner ring gear 134 is not engaged with the transmission shaft 132, only the outer ring wheel 133 rotates independently, and the overall position of the wheel mechanism remains unchanged. When the inner ring gear 134 is engaged with the transmission shaft 132, both the outer ring wheel 133 and the inner ring gear 134 rotate, and the position of the wheel mechanism is displaced relative to the position of the rack 135.

[0046] <Control Panel>

[0047] As mentioned above, each OLED display screen 11 is equipped with a control panel 12. The OLED display screens 11 are independent of each other, and the control panels 12 are also independent of each other. Therefore, only one set of OLED display screens 11 and control panels 12 is used as an example for description. Figure 2 As shown, the control panel 12 includes a curvature adjusting member 121 , an orientation-curvature assembly member 122 and a screen-off display member 123 .

[0048] [Screen curvature adjustment]

[0049] The curvature adjustment member 121 is used to adjust the curvature of the OLED display 11 and is electrically connected to the adjustment unit via a wired or wireless connection. When the curvature adjustment member 121 is operated, the clamp 138 on the inner ring gear 134 and the clamping slot 139 on the transmission shaft 132 are not engaged. Therefore, when the drive motor 131 drives the transmission shaft 132 to rotate, the transmission shaft 132 only drives the outer ring rotating wheel 133 to rotate.

[0050] The following, combined Figure 4 Describe screen curvature adjustment in detail. Figure 4 In the figure, (a) shows the OLED display screen 11 in the initial state, and (b) shows the OLED display screen 11 after the curvature is adjusted.

[0051] exist Figure 4 In the initial state shown in (a), the OLED display 11 is a straight screen with no curvature. The central spring 136 is installed between the mounting surface and the OLED display 11 in a stretched state, extending by a length ΔL. In this state, the central spring 136 has an initial length of L + ΔL, providing a tensile strength but not a compressive strength.

[0052] When the curvature of the OLED display screen 11 needs to be changed, the power of the driving motor 131 is transmitted to the pair of outer ring wheels 133 via the transmission shaft 132. The pair of outer ring wheels 133 on both sides of the OLED display screen 11 rotate synchronously in opposite directions to achieve the adjustment of the screen curvature. Figure 4 As shown in (a), the outer ring wheels 133 rotate in opposite directions, that is, the outer ring wheel 133 on the upper side rotates clockwise, and the outer ring wheel 133 on the lower side rotates counterclockwise, so that the OLED display 11 between the outer ring wheels 133 becomes relaxed from being taut, and the central spring 136 exerts a force on the OLED display 11 in the concave direction under the action of the restoring force. As a result, the OLED display 11 becomes Figure 4 The concave state shown in (b) indicates that the OLED display screen 11 has become a curved screen, and the curvature varies with the relative rotation angle of the pair of outer ring wheels 133. With this, since the central spring 136 is installed in a stretched state in the initial state, the screen can be ensured to be concave from the initial state, avoiding convexity.

[0053] Figure 4 The state shown in (b) is a critical state where the length of central spring 136 reaches L when the outer wheels 133 rotate by angle α. Therefore, central spring 136 no longer returns in the direction of screen concavity, meaning it exerts no external force on the OLED display 11. If the outer wheels 133 continue to rotate (i.e., angle α increases further), the OLED display 11 relaxes further and begins to compress central spring 136L. Central spring 136L enters a compressed state, compressed by a length of ΔL. Consequently, the restoring force of central spring 136 applies force to the OLED display 11 in the direction opposite to the concavity, pushing the screen outward and preventing excessive bending. Because central spring 136 maintains a constant length and consistently provides reverse resistance from a roughly central position, with the resistance varying with displacement, a smooth transition in screen curvature is achieved. This also limits excessive displacement during inward concavity, preventing the screen from folding inward and potentially breaking.

[0054] It can be seen from this that during the entire curvature adjustment process, the relationship between the deformation ΔL of the central spring 136 and the angle α should satisfy the following formula:

[0055]

[0056] Where R is the radius of the outer wheel 133, D is the distance between the center of the pair of outer wheels 133, ΔL is the length of the stretched central spring 136, and α is the angle of rotation of the pair of outer wheels 133. This prevents damage to the OLED display 11 due to excessive stretching and ensures that the spring force of the central spring 136 does not exceed the structural tolerance.

[0057] In addition, in this embodiment, the curvature adjustment can be achieved quickly and in a coordinated manner by rotating the pair of outer ring wheels 133 simultaneously. However, the above-mentioned effect can also be achieved by rotating only one of the outer ring wheels 133 .

[0058] [Screen orientation-curvature combination adjustment]

[0059] The orientation-curvature assembly 122 is used to synchronously adjust the curvature and position (i.e., orientation) of the OLED display 11. It is electrically connected to the adjustment unit via a wired or wireless connection. When the orientation-curvature assembly 122 is operated, for example, the clamp 138 on the inner ring gear 134 engages the slot 139 on the transmission shaft 132, and the inner ring gear 134 and the transmission shaft 132 enter a meshing state, rotating together. Therefore, driven by the drive motor 131, the transmission shaft 132 rotates, driving the outer ring gear 133 and the inner ring gear 134 to rotate together.

[0060] The following, combined Figure 5 The screen orientation-curvature combination adjustment is described in detail. Figure 5 In the figure, (a) shows the OLED display screen 11 in the initial state, and (b) shows the OLED display screen 11 after the orientation-curvature combination is adjusted.

[0061] exist Figure 5 In the initial state in (a), the OLED display screen 11 can have any curvature, and the distance between the pair of outer ring wheels 133 (centers) is the shortest distance D. For example, it can be the distance between the pair of outer ring wheels 133 when their centers are on the same vertical line.

[0062] When the orientation of the OLED display screen 11 needs to be changed, the power of the drive motor 131 is transmitted to the inner ring gear 134 and the outer ring wheel 133 on the same side (i.e., the upper side) of the inner ring gear 134 via the transmission shaft 132. As a result, the outer ring wheel 133 and the inner ring gear 134 on the upper side of the OLED display screen 11 rotate together. Since the outer ring wheel 133 is fixedly connected to the transmission shaft 132 and the inner ring gear 134 is meshed with the transmission shaft 132, it can be understood that the two rotate synchronously via the transmission shaft 132. Figure 5 As shown in (a), the outer ring wheel 133 and the inner ring gear 134 rotate clockwise together, so that Figure 5 As shown in (b), the upper outer ring wheel 133 and the inner ring gear 134 as a whole move rightward along the rack 135, and the OLED display 11 tilts downward. Conversely, if the upper outer ring wheel 133 and the inner ring gear 134 rotate counterclockwise together, the OLED display 11 tilts upward.

[0063] like Figure 5 As shown in (b), when the inner ring gear 134 rotates by an angle α and translates a distance d on the gear, the distance between the pair of outer ring wheels 133 (centers) becomes D 2 +d 2 (Pythagorean Theorem). In other words, as the distance between the center of the outer wheels 133 increases, the length of the OLED display 11 required between them also increases. At this point, because the outer wheels 133 also rotate, a certain length of the OLED display 11 is freed to compensate for the increase in screen size caused by the hypotenuse, thereby ensuring that the curvature of the screen itself does not change during the screen orientation adjustment process.

[0064] It can be seen from this that during the entire orientation adjustment process, the relationship between the distance d and the angle α should satisfy the following formula:

[0065]

[0066] Where R is the radius of the outer wheel 133, r is the radius of the inner gear 134, D is the shortest distance between the center of the outer wheels 133, α is the angle of rotation between the outer wheel 133 and the inner gear 134, and d is the distance the inner gear 134 moves along the rack 135 (the distance the outer wheel 133 moves laterally from its center). Therefore, by controlling the relationship between the angle (wheel rotation angle) α and the distance (displacement) d, the released length of the OLED display 11 can be adjusted to precisely compensate for the actual length of the display, preventing curvature changes or tearing.

[0067] In summary, the flexible self-luminous display device of one embodiment of the present application can adjust the curvature and orientation with a simple structure and operation. Therefore, when the aircraft encounters a strong light environment or other lighting sources in the cockpit cause reflections on the screen, the pilot can modify the screen curvature by rotating the curvature adjustment member 121 to prevent the screen from reflecting and enhance the driving experience. Compared to a straight screen, the curved surface design of a curved screen can reduce direct reflection of light. When light is reflected from the screen surface, the curved surface design disperses the light instead of reflecting it directly back into the user's eyes, thereby reducing glare and reflections. In addition, crew members have different body shapes, eye positions, and seat positions. When the pilot needs to adjust the shape of the display in a personalized way, he or she can also adjust the overall shape of the display screen through the curvature adjustment member 121 and the orientation-curvature assembly 122 to obtain the best viewing effect.

[0068] [Screen off display control]

[0069] In addition, the screen-off display element 123 is used to apply a screen-off display effect to the screen, thereby improving the contrast of the screen and reducing the energy consumption of the screen.

[0070] like Figure 1 As shown, when the screen-off display 123 is operated, for example, the power supply to the OLED pixels in the black background area of the OLED display screen 11 can be stopped by a controller (not shown), while the power supply to the OLED pixels in the color content area, specifically, the OLED pixels in the five indicator colors (such as green, red, yellow, cyan, and white), is maintained. As a result, the OLED pixels in the black background area are extinguished due to power outage, forming a true "black" state, eliminating the light pollution caused by gray fluorescence or light leakage (especially white light at the edge) of traditional LCD screens, expanding situational awareness in quiet and dark environments, and helping pilots achieve immersive flight. Moreover, maintaining power to the OLED pixels in the color content area (such as green tire pressure, red warning words, white borders, etc.) results in higher contrast and clearer vision, helping to increase pilots' attention to abnormal conditions and improve operational accuracy in night flights or low-visibility flight missions. The above-mentioned black background area and color content area are determined by the display content and can change as the display content changes.

[0071] Furthermore, under emergency power supply conditions, activating the off-screen display control function significantly reduces power consumption, thereby changing the reconfiguration strategy. Instead of cutting off power to the passenger-side display as in traditional emergency strategies, the system activates a full-screen low-power mode, activating only the critical information areas within the screens to provide global power to all screens. This ensures that both the pilot and co-pilot receive necessary flight instructions, minimizes power consumption, and achieves optimal control of the display system. Furthermore, when operating the off-screen display element 123, for example, an indicator light on the off-screen display element 123 can illuminate to indicate the off-screen display status.

[0072] In summary, the flexible self-luminous display device of the present application takes into account the practicality and adaptability of structural design, the advancement and energy saving of display logic, and the comfort and safety of the control experience. It has obvious advantages in the current iteration of cockpit display systems and is suitable for new civil aircraft modifications, cockpit upgrades and future human-computer interaction technology integration platforms.

[0073] The above specific implementation methods further describe the purpose, technical solutions and beneficial effects of this application in detail. It should be understood that the above is only a specific implementation method of this application and is not limited to the scope of protection of this application. Without departing from the purpose of the basic characteristics of this application, this application can be embodied in various forms. Therefore, the implementation forms in this application are used for illustration rather than limitation. Since the scope of this application is defined by the claims rather than the specification, and all changes that fall within the scope defined by the claims or the equivalent range of the scope defined by them should be understood to be included in the claims. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A flexible self-luminous display device, characterized in that: include: at least one flexible self-luminous display screen; as well as At least one adjustment unit is configured on the back of the flexible self-luminous display screen corresponding to the flexible self-luminous display screen, The adjusting unit independently adjusts the curvature of the flexible self-luminous display screen in a manner that tightens or relaxes the corresponding flexible self-luminous display screen. The adjusting unit independently adjusts the orientation of the flexible self-luminous display screen by translating one end of the corresponding flexible self-luminous display screen.

2. The flexible self-luminous display device according to claim 1, characterized in that: The adjustment unit includes: a drive mechanism, which provides power; a transmission mechanism, one end of which is connected to the driving mechanism and is used to transmit power from the driving mechanism; a rotating wheel mechanism connected to the other end of the transmission mechanism, for adjusting the orientation and curvature of the flexible self-luminous display screen; and A locking mechanism is installed between the rotating wheel mechanism and the transmission mechanism, and is used to switch the rotating wheel mechanism and the transmission mechanism between engagement and non-engagement.

3. The flexible self-luminous display device according to claim 2, characterized in that: The driving mechanism is a driving motor, The transmission mechanism is a transmission shaft connected to the drive motor.

4. The flexible self-luminous display device according to claim 2, characterized in that: The wheel mechanism includes a pair of outer ring wheels. Two ends of the flexible self-luminous display screen are respectively wound around and fixed on a pair of outer ring wheels, and are respectively fixedly connected to the other end of the transmission mechanism.

5. The flexible self-luminous display device according to claim 4, characterized in that: The driving mechanism drives the transmission mechanism to drive the pair of outer ring wheels to rotate in relatively opposite directions, so that the curvature of the flexible self-luminous display screen between the pair of outer ring wheels changes between the tension and relaxation of the screen.

6. The flexible self-luminous display device according to claim 4, characterized in that: The adjustment unit further comprises a central spring, The central spring is installed in a stretched state at approximately the center of the back surface of the flexible self-luminous display screen.

7. The flexible self-luminous display device according to claim 6, characterized in that: The driving mechanism drives the transmission mechanism to drive the pair of outer ring wheels to rotate in a relatively opposite manner. The central spring applies force to the flexible self-luminous display screen under the action of the restoring force, so that the curvature of the flexible self-luminous display screen between the pair of outer ring wheels changes smoothly between the tension and relaxation of the screen.

8. The flexible self-luminous display device according to claim 4, characterized in that: The wheel mechanism further comprises: an inner ring gear, which is coaxially arranged with one of the pair of outer ring wheels and rotatably sleeved on the transmission mechanism; and The rack is always meshed with the inner ring gear. The inner ring gear is formed into a structure that cannot be displaced relative to the outer ring gear but can rotate independently of each other. The inner ring gear slides on the rack by rotating, thereby generating lateral displacement together with the outer ring rotating wheel.

9. The flexible self-luminous display device according to claim 8, characterized in that: The locking mechanism comprises: a clamp, which is provided at a portion of the inner ring gear opposite to the transmission mechanism in a manner of protruding toward the transmission mechanism; and A card slot is formed in an inwardly concave manner at a position on the transmission mechanism corresponding to the card slot, When the clamp is inserted into the clamping slot, the inner ring gear is engaged with the transmission mechanism, so that the inner ring gear rotates along with the rotation of the transmission mechanism. When the clamp is disengaged from the clamping slot, the inner ring gear is not engaged with the transmission mechanism, so that the inner ring gear does not rotate along with the rotation of the transmission mechanism.

10. The flexible self-luminous display device according to claim 9, characterized in that: By inserting the clamp into the clamping slot, the inner ring gear is engaged with the transmission mechanism. The driving mechanism drives the transmission mechanism to drive the inner ring gear and the outer ring wheel coaxially configured with the inner ring gear to rotate, so that the inner ring gear and the outer ring wheel are displaced along the rack together, so that the orientation of the flexible self-luminous display screen between a pair of outer ring wheels changes under the premise that the curvature remains unchanged.

11. The flexible self-luminous display device according to claim 1, characterized in that: The flexible self-luminous display screen is a flexible OLED display screen. The OLED display screen includes: a plurality of OLED pixels arranged in an array; and a plurality of OLED pixel driving circuits, which are independently arranged in a one-to-one correspondence with the plurality of OLED pixels and provide power. The OLED pixel point is composed of three sub-pixels, which are a red light independent light emitting layer, a green light independent light emitting layer and a blue light independent light emitting layer, and the brightness of the sub-pixels is controlled by the OLED pixel point driving circuit. The OLED pixel driving circuit stops supplying power to the OLED pixel points in the black background area of the OLED display screen, and maintains supplying power to the OLED pixel points in the color content area.

12. The flexible self-luminous display device according to claim 1, characterized in that: The flexible self-luminous display device further includes at least one control panel, The control panel is configured corresponding to the flexible self-luminous display screen and includes at least a curvature adjusting component and an orientation-curvature assembly component.

13. The flexible self-luminous display device according to claim 1, characterized in that: The flexible self-luminous display device is arranged on an instrument panel in an aircraft cockpit.

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