CN-121597156-B - Image display method and device, vehicle-mounted display screen and device

CN121597156BCN 121597156 BCN121597156 BCN 121597156BCN-121597156-B

Abstract

The invention discloses an image display method, an image display device, a vehicle-mounted display screen and image display equipment, and relates to the technical field of display, wherein the method comprises the steps of obtaining an interaction instruction generated by a user on the vehicle-mounted display screen, and generating display information of each first pixel point according to the interaction instruction; the method comprises the steps of analyzing display information to obtain projection parameters of each projection beam, projecting the corresponding projection beams to a vehicle-mounted display screen according to the projection parameters to obtain each second pixel point, forming an interactive interface according to all the second pixel points, wherein the vehicle-mounted display screen comprises a hemispheroidal or hypersphere display carrier, a touch electrode layer covered on the outer surface of the display carrier and a diffraction film layer covered on the inner surface of the display carrier, and obtaining interactive instructions of a user based on the touch electrode layer, wherein the diffraction film layer is used for diffracting the projection beams and forming the second pixel points. The display mode of the interactive interface can be presented to the user in a more visual, vivid and private mode.

Inventors

CHEN XIN
GU HUILIANG
RAN PENG

Assignees

宁波普瑞均胜汽车电子有限公司

Dates

Publication Date: 20260505
Application Date: 20260128

Claims (9)

1. An image display method, the method comprising: Acquiring an interaction instruction generated by a user on a vehicle-mounted display screen, and generating display information of each first pixel point according to the interaction instruction; Analyzing the display information to obtain projection parameters of each projection beam; projecting the corresponding projection light beams to the vehicle-mounted display screen according to the projection parameters to obtain each second pixel point, and forming an interactive interface according to all the second pixel points; The vehicle-mounted display screen comprises a hemispheroidal or hyperspheric display carrier, a touch electrode layer covered on the outer surface of the display carrier and a diffraction film layer covered on the inner surface of the display carrier, wherein an interaction instruction of a user is obtained based on the touch electrode layer, and the diffraction film layer is used for diffracting projection light beams and forming second pixel points; The method comprises the steps of projecting corresponding projection light beams to a vehicle-mounted display screen according to projection parameters to obtain each second pixel point, and forming an interactive interface according to all the second pixel points, and specifically comprises the following steps: Determining a virtual projection point formed by projecting each projection beam onto an original projection surface and a real projection point formed by projecting each projection beam onto a projection receiving surface, and establishing a mapping relationship between the virtual projection point and the real projection point corresponding to the projection beam to obtain a first mapping relationship; Determining the projection length formed by projecting each projection beam onto an original projection surface, and establishing a mapping relation between the projection length and the first deflection component to obtain a second mapping relation, wherein the projection length is the length from the sphere center of the display carrier to the virtual projection point; determining a mapping relation between the vector from the first pixel point corresponding to each projection beam to the sphere center of the display carrier and the second deflection component to obtain a third mapping relation; Analyzing the display information according to the first, second and third mapping relations to obtain projection parameters of each projection beam; The original projection surface is the maximum section passing through the sphere center of the display carrier, the projection bearing surface is the inner surface of the display carrier, the display information comprises display intensity and display color, the projection parameters comprise projection intensity corresponding to the display intensity, projection color corresponding to the display color, deflection angle and deflection speed of the projection beam, the deflection angle is obtained by a first deflection component and a second deflection component, the first deflection component is a positive direction included angle between the projection beam and a positive Z axis of a spherical polar coordinate system, and the second deflection angle component is a positive direction included angle between the projection beam and an XY plane.
2. The method for displaying an image according to claim 1, wherein the step of obtaining the interaction instruction generated by the user on the vehicle-mounted display screen and generating the display information of each first pixel according to the interaction instruction specifically includes: acquiring a touch event generated by a user on a vehicle-mounted display screen, and determining at least one touch point corresponding to the touch event on the vehicle-mounted display screen; and generating an interaction instruction of a user according to the touch point, and determining a display image and display information of each first pixel point in the display image according to the interaction instruction.
3. The image display method according to claim 2, wherein the interactive instruction is obtained by: acquiring at least one touch event generated by a user on a current interactive interface; determining a first interaction area corresponding to the current touch event on the current interaction interface according to the touch point of the current touch event; Determining a second interaction area corresponding to the previous touch event on the current interaction interface according to the touch point of the previous touch event; and determining touch keys and/or interaction tracks interacted by the user at the current interaction interface according to the first interaction area and the second interaction area, and generating interaction instructions of the user according to the touch keys and/or the interaction tracks.
4. The image display method according to claim 2, wherein the outer surface of the touch electrode layer is provided with a plurality of driving electrodes and a plurality of sensing electrodes, each driving electrode has an intersection point with one sensing electrode, and the intersection point of the driving electrode and the sensing electrode forms a capacitance node of the vehicle-mounted display screen.
5. The method for displaying an image according to claim 4, wherein the steps of obtaining a touch event generated by a user on the vehicle-mounted display screen and determining at least one touch point corresponding to the touch event on the vehicle-mounted display screen include: acquiring the capacitance value of each capacitance node in the current frame, comparing the capacitance value of the current frame with the reference capacitance value of each capacitance node, and determining the capacitance value variation of each capacitance node in the current frame; determining whether a touch event of a user is generated in the current frame according to the capacitance value variation; Under the condition that the touch event of a user is determined to be generated, taking a capacitance node with the capacitance value variation exceeding a preset threshold value as an effective node; determining driving electrodes and sensing electrodes corresponding to the effective nodes respectively; According to the driving electrode, the sensing electrode and the capacitance value variation corresponding to the effective nodes, the calculation weight of each effective node is determined, and at least one touch point is determined and obtained according to the position information and the calculation weight of all the effective nodes on the vehicle-mounted display screen.
6. The method for displaying an image according to claim 5, wherein determining the calculation weight of each effective node according to the driving electrode, the sensing electrode and the capacitance value variation corresponding to the effective node, and determining at least one set of longitude coordinates and latitude coordinates according to the position information and the calculation weight of all the effective nodes on the vehicle-mounted display screen, comprises: Determining initial weights of all effective nodes according to the capacitance value variation; determining the position information of each effective node on the vehicle-mounted display screen according to the driving electrode and the sensing electrode corresponding to the effective node, and determining a first compensation factor of each effective node according to the position information, wherein the larger the latitude coordinate corresponding to the sensing electrode is, the larger the first compensation factor of the corresponding effective node is, the smaller the latitude coordinate corresponding to the sensing electrode is, and the smaller the first compensation factor of the corresponding effective node is; The larger the corresponding latitude coordinate of the sensing electrode is, the larger the corresponding second compensation factor of the effective node is, the smaller the corresponding latitude coordinate of the sensing electrode is, and the smaller the corresponding second compensation factor of the effective node is and approaches to 1; Determining the calculation weight of each effective node according to the product of the basic weight of the effective node, the first compensation factor and the second compensation factor; performing spatial clustering grouping on the effective nodes according to the spherical distances of the effective nodes on the vehicle-mounted display screen to obtain at least one group of effective nodes; and carrying out weighted centroid calculation according to the position information and calculation weight of each group of effective nodes to obtain the touch points of each group.
7. An image display device, the device comprising: the display generation module is used for acquiring an interaction instruction generated by a user on the vehicle-mounted display screen and generating display information of each first pixel point according to the interaction instruction; The parameter generation module is used for analyzing the display information to obtain the projection parameters of each projection beam; the projection diffraction module is used for projecting the corresponding projection light beams to the vehicle-mounted display screen according to the projection parameters to obtain each second pixel point, and forming an interactive interface according to all the second pixel points; The vehicle-mounted display screen comprises a hemispheroidal or hyperspheric display carrier, a touch electrode layer covered on the outer surface of the display carrier and a diffraction film layer covered on the inner surface of the display carrier, wherein an interaction instruction of a user is obtained based on the touch electrode layer, and the diffraction film layer is used for diffracting projection light beams and forming second pixel points; The projection diffraction module specifically comprises: Determining a virtual projection point formed by projecting each projection beam onto an original projection surface and a real projection point formed by projecting each projection beam onto a projection receiving surface, and establishing a mapping relationship between the virtual projection point and the real projection point corresponding to the projection beam to obtain a first mapping relationship; Determining the projection length formed by projecting each projection beam onto an original projection surface, and establishing a mapping relation between the projection length and the first deflection component to obtain a second mapping relation, wherein the projection length is the length from the sphere center of the display carrier to the virtual projection point; determining a mapping relation between the vector from the first pixel point corresponding to each projection beam to the sphere center of the display carrier and the second deflection component to obtain a third mapping relation; Analyzing the display information according to the first, second and third mapping relations to obtain projection parameters of each projection beam; The original projection surface is the maximum section passing through the sphere center of the display carrier, the projection bearing surface is the inner surface of the display carrier, the display information comprises display intensity and display color, the projection parameters comprise projection intensity corresponding to the display intensity, projection color corresponding to the display color, deflection angle and deflection speed of the projection beam, the deflection angle is obtained by a first deflection component and a second deflection component, the first deflection component is a positive direction included angle between the projection beam and a positive Z axis of a spherical polar coordinate system, and the second deflection angle component is a positive direction included angle between the projection beam and an XY plane.
8. The method is characterized by comprising a hemispheroidal or hyperspherical display carrier, a touch electrode layer covered on the outer surface of the display carrier and a diffraction film layer covered on the inner surface of the display carrier, interaction instructions of a user are obtained based on the touch electrode layer, the diffraction film layer is used for diffracting projection light beams and forming second pixel points, and the method for displaying images of any one of claims 1 to 6 is executed by the vehicle-mounted display screen to generate the projection light beams.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the image display method according to any one of claims 1 to 6 when the program is executed.

Description

Image display method and device, vehicle-mounted display screen and device Technical Field The invention relates to the technical field of display, in particular to an image display method, an image display device, a vehicle-mounted display screen and vehicle-mounted display equipment. Background Along with rapid development of automobile intellectualization and networking, the importance of a vehicle-mounted information entertainment system and a vehicle-mounted interaction interface in a vehicle is increasingly highlighted, and the traditional vehicle-mounted interaction interface mainly depends on a plane or curved surface display screen and is matched with physical keys, knobs or plane touch controls to realize user interaction. Accurately projecting a two-dimensional planar image onto a spherical or spheroid screen is critical to achieving an immersive visual experience. However, due to the substantial differences between spherical geometry and projection plane, the direct use of conventional planar projection techniques can result in severe image distortion. Specifically, when the projection beam is emitted from a point light source and the ideal planar image is mapped to the spherical receiving screen, the curvature of the spherical surface causes pixels in the edge region of the image to be unevenly compressed or stretched, resulting in distortion of the image perceived by the observer. Therefore, a brand new vehicle-mounted interaction scheme capable of breaking through the limitation of the two-dimensional plane is urgently needed, and an information interaction mode with stereoscopic vision layering sense is brought to a user. Disclosure of Invention In view of the above, the embodiments of the present invention provide an image display method, an image display device, a vehicle-mounted display screen, and a vehicle-mounted display device, so as to solve the problem that the existing vehicle-mounted interaction scheme cannot bring an information interaction mode with stereoscopic vision layering to a user. According to a first aspect, an embodiment of the present invention provides an image display method, including: Acquiring an interaction instruction generated by a user on a vehicle-mounted display screen, and generating display information of each first pixel point according to the interaction instruction; Analyzing the display information to obtain projection parameters of each projection beam; projecting the corresponding projection light beams to the vehicle-mounted display screen according to the projection parameters to obtain each second pixel point, and forming an interactive interface according to all the second pixel points; The vehicle-mounted display screen comprises a hemispheroidal or hyperspheric display carrier, a touch electrode layer covered on the outer surface of the display carrier and a diffraction film layer covered on the inner surface of the display carrier, interaction instructions of users are obtained based on the touch electrode layer, and the diffraction film layer is used for diffracting projection light beams and forming second pixel points. With reference to the first aspect, in a first implementation manner of the first aspect, the projecting a corresponding projection beam to the vehicle-mounted display screen according to the projection parameter, to obtain each second pixel point, and form an interactive interface according to all the second pixel points, specifically includes: Determining a virtual projection point formed by projecting each projection beam onto an original projection surface and a real projection point formed by projecting each projection beam onto a projection receiving surface, and establishing a mapping relationship between the virtual projection point and the real projection point corresponding to the projection beam to obtain a first mapping relationship; Determining the projection length formed by projecting each projection beam onto the original projection surface, and establishing a mapping relation between the projection length and the first deflection component to obtain a second mapping relation; determining a mapping relation between the vector from the first pixel point corresponding to each projection beam to the sphere center of the display carrier and the second deflection component to obtain a third mapping relation; Analyzing the display information according to the first, second and third mapping relations to obtain projection parameters of each projection beam; The original projection surface is the maximum section passing through the sphere center of the display carrier, the projection bearing surface is the inner surface of the display carrier, the display information comprises display intensity and display color, the projection parameters comprise projection intensity corresponding to the display intensity, projection color corresponding to the display color, deflection angle and deflection speed of the projection be