TWI826015B - Angular display device and image compensation method - Google Patents

Abstract

An angular display device and an image compensation method are provided in the present disclosure. The image compensation method includes simulating a first display surface and a second display surface of an angular display to respectively create a first simulation surface and a second simulation surface in a three-dimensional (3D) space , wherein the first display surface and the second display surface are not coplanar; creating a projection surface in the 3D space; projecting an original image onto the projection surface to form a first projection image; parallel projecting the first projection image toward a viewing position onto the first simulation surface and the second simulation surface to form a second projection image; forming a display image on the first display surface and the second display surface according to the first simulation surface, the second simulation surface, and the second projection image.

Description

Corner display device and image compensation method

The present invention relates to an image display technology, and in particular to a folding angle display device and an image compensation method.

Display devices are often used in various fields (such as shopping malls, offices, etc.). Display devices generally use two-dimensional display technology. However, the two-dimensional display technology cannot make the image displayed by the display device have a three-dimensional sense. Furthermore, if the display surface of the display device has a special shape (such as an angle), the two-dimensional display technology may cause discontinuity in the image displayed by the display device.

In view of the above, the present invention provides a folding display device and an image compensation method. The folding display device includes a folding display, a memory and a processor. The corner display includes a first display surface and a second display surface. The first display surface and the second display surface are not coplanar. The memory is used to store one or more commands. The processor is coupled to the memory and the fold-angle display. The processor is used to access and execute one or more commands in the memory. One or more commands include simulating the first display surface and the second display surface to respectively establish a first simulation surface and a second simulation surface in a three-dimensional space; establishing a projection surface in the three-dimensional space; and projecting an original image to The projection surface is used to form a first projection image; the first projection image is projected parallel to the first simulation surface and the second simulation surface toward a viewing position to form a second projection image; and based on the first simulation surface, the second simulation surface The simulation surface and the second projected image form a display image on the first display surface and the second display surface.

The image compensation method includes simulating a first display surface and a second display surface of a folding display to establish a first simulation surface and a second simulation surface respectively in a three-dimensional space, wherein the first display surface and the second display surface Non-coplanar; establish a projection surface in a three-dimensional space; project an original image to the projection surface to form a first projection image; project the first projection image parallel to the first simulation surface and the second simulation surface toward a viewing position , to form a second projection image; and based on the first simulation surface, the second simulation surface and the second projection image, form a display image on the first display surface and the second display surface.

In summary, according to the embodiments of the present invention, the display image of the corner display can have a three-dimensional effect. In addition, the present invention can also make the display image of the folding display have continuity without being affected by the folding angle.

Referring to FIG. 1 , a schematic block diagram of a corner display device 10 according to some embodiments of the present invention is shown. The corner display device 10 includes a corner display 11 , a memory 13 and a processor 15 . The processor 15 is coupled to the memory 13 and the fold-angle display 11 . The memory 13 is used to store one or more commands. The processor 15 is used to access and execute one or more commands in the memory 13 to execute the image compensation method of the present invention. The processor 15 can be obtained from a built-in or external input/output device (such as a camera, a scanner, or a device with a universal serial bus interface (USB), etc.) of the fold-angle display device 10 (not shown). The first image signal (hereinafter referred to as the original image), and after performing the image compensation method on the original image, the second image signal (hereinafter referred to as the display image 115) is output to the corner display 11, so that the corner display 11 presents the display Image 115.

In some embodiments, the memory 13 is such as, but not limited to, a traditional hard drive, a solid state drive, a flash memory, an optical disk, etc. In some embodiments, the processor 15 is, for example, but not limited to, a central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or a system on a chip (SOC). circuit.

Refer to Figures 2 and 3. FIG. 2 is a three-dimensional schematic diagram of a folding display 11 according to some embodiments of the present invention. FIG. 3 is a schematic front view of the foldable display 11 according to some embodiments of the present invention. The corner display 11 includes a first display surface 110 , a second display surface 111 and a back panel 113 . The first display surface 110 and the second display surface 111 are not coplanar. For example, there is a folding corner 112 between the first display surface 110 and the second display surface 111 . Specifically, as shown in FIGS. 2 and 3 , one side of the first display surface 110 is connected to one side of the second display surface 111 , so that the first display surface 110 and the second display surface 111 form a The display surface is raised. That is, the folding angle 112 between the first display surface 110 and the second display surface 111 is greater than 180 degrees. In some embodiments, the first display surface 110 and the second display surface 111 may have the same shape or different shapes. The back plate 113 is located on the other side of the light emitting surface of the first display surface 110 and the second display surface 111 to support the first display surface 110 and the second display surface 111 .

Refer to Figure 2, Figure 4 to Figure 9. FIG. 4 is a flow chart of an image compensation method according to some embodiments of the present invention. FIG. 5 is a three-dimensional perspective view of the first simulation surface 20 , the second simulation surface 21 and the projection surface 24 in the three-dimensional space 100 according to some embodiments of the present invention. Figure 6 is a schematic front view of the first simulation surface 20, the second simulation surface 21 and the projection surface 24 in the three-dimensional space 100 according to some embodiments of the present invention. Figure 7 is a schematic rear view of the first simulation surface 20, the second simulation surface 21 and the projection surface 24 in the three-dimensional space 100 according to some embodiments of the present invention. FIG. 8 is a three-dimensional perspective view of the first simulation surface 20 , the second simulation surface 21 and the projection surface 24 in the three-dimensional space 100 according to some embodiments of the present invention. Figure 9 is a schematic front view of the first simulation surface 20, the second simulation surface 21 and the projection surface 24 in the three-dimensional space 100 according to some embodiments of the present invention. In some embodiments, one or more commands executed by the processor 15 include steps S601 to S609 to implement the image compensation method. First, the processor 15 simulates the first display surface 110 and the second display surface 111 to respectively establish the first simulation surface 20 and the second simulation surface 21 in the three-dimensional space 100 (step S601). Since the first simulation surface 20 and the second simulation surface 21 are simulated from the first display surface 110 and the second display surface 111 , the first simulation surface 20 and the second simulation surface 21 are not coplanar. For example, the processor 15 can define a three-dimensional coordinate system (for example, a rectangular coordinate system) of the three-dimensional space 100 by using a certain point on the folded display 11 as a reference point. The processor 15 obtains the first three-dimensional coordinate parameter set of the three-dimensional coordinate system based on the relative position between the reference point and the first display surface 110 (for example, its four boundary points), and based on the reference point and the second display surface 111 ( For example, the relative positions between its four boundary points) are used to obtain the second three-dimensional coordinate parameter set of the three-dimensional coordinate system. The first three-dimensional coordinate parameter set and the second three-dimensional coordinate parameter set may respectively include multiple three-dimensional coordinate parameters. In some embodiments, the three-dimensional coordinate parameters can be represented by (x, y, z), where x is the horizontal axis value of the three-dimensional coordinate system, y is the vertical axis value of the three-dimensional coordinate system, and z is the vertical axis value of the three-dimensional coordinate system. Vertical axis value. The processor 15 can respectively establish the first simulation surface 20 and the second simulation surface 21 in the three-dimensional space 100 based on the first three-dimensional coordinate parameter set and the second three-dimensional coordinate parameter set.

In some embodiments, in addition to simulating the first display surface 110 and the second display surface 111 , the processor 15 can also simulate other components of the corner display 11 or the entire corner display 11 to establish a corresponding relationship in the three-dimensional space 100 model. For example, as shown in FIGS. 5 and 8 , the processor 15 can also simulate the back panel 113 of the foldable display 11 to establish the back panel model 23 in the three-dimensional space 100 .

Next, the processor 15 creates a projection plane 24 in the three-dimensional space 100 (step S603). For example, as shown in FIGS. 5 and 7 , while the first simulation surface 20 and the second simulation surface 21 are located on the front side of the back panel model 23 , the projection surface 24 is located on the rear side of the back panel model 23 . However, the present invention is not limited thereto. For example, as shown in FIGS. 8 and 9 , the projection surface 24 , the first simulation surface 20 and the second simulation surface 21 are all located on the same side (front side) of the back panel model 23 . In some embodiments, the projection surface 24 is a plane or a curved surface.

As shown in FIGS. 4 and 5 , after establishing the first simulation surface 20 , the second simulation surface 21 and the projection surface 24 , the processor 15 projects the original image to the projection surface 24 to form a first projection image 30 ( Step S605). For example, the processor 15 can align the center point of the original image with the center point of the projection plane 24 , and project each pixel to the projection plane 24 in the three-dimensional space 100 according to the pixel coordinate parameters of each pixel of the original image. The corresponding three-dimensional coordinate parameters in the coordinate system (hereinafter referred to as the projection surface coordinate parameters) are used to form the first projection image 30 . That is to say, the processor 15 can directly project the original image to the projection surface 24 to form the first projected image 30 . Specifically, the processor 15 can convert the original image into the first projected image 30 according to the first conversion function, where the first conversion function can be expressed as Equation 1, Pv is the first conversion function, and Vo is the pixel of the pixel of the original image. Mvtran is a matrix of coordinate parameters that converts pixel coordinate parameters into projection plane coordinate parameters of the projection plane 24 .

……………………………………(Formula 1)

As shown in FIGS. 4 to 6 , after forming the first projection image 30 , the processor 15 projects the first projection image 30 toward a viewing position 40 in parallel to the first simulation surface 20 and the second simulation surface. 21 to form a second projected image 31 (step S607). For example, the processor 15 can convert the first projection image 30 into the second projection image 31 according to the second conversion function, where the second conversion function can be expressed as Equation 2, Ps is the second conversion function, and Pv is in step S605 The conversion function (such as the first conversion function or the third conversion function described later) performed in The corresponding three-dimensional coordinate parameters of the simulation surface 20 and the second simulation surface 21 in the three-dimensional coordinate system of the three-dimensional space 100 (hereinafter referred to as simulation surface coordinate parameters).

……………………………… (Formula 2)

In some embodiments, parallel projection includes orthographic projection and oblique projection. In some embodiments of step S607, the first projection image 30 is projected onto the first simulation surface 20 and the second simulation surface 21 according to different viewing positions 40 and the distribution positions of the first projection image 30 on the projection surface 24. The method can be to use one or both of orthographic projection and oblique projection.

Refer to Figure 4, Figure 6, Figure 10 and Figure 11. FIG. 10 is a schematic front view of the fold-angle display 11 according to a comparative example of the present invention. FIG. 11 is a schematic front view of a foldable display 11 according to some embodiments of the present invention. After forming the second projection image 31 , the processor 15 forms a display image 115 on the first display surface 110 and the second display surface 111 based on the first simulation surface 20 , the second simulation surface 21 and the second projection image 31 (step S609). For example, since the first simulation surface 20 and the second simulation surface 21 are simulated from the first display surface 110 and the second display surface 111, the processor 15 can, based on the coordinate parameters of the simulation surface and its corresponding pixels in the original image, The first display surface 110 and the second display surface 111 are controlled to present the second projected image 31 as the display image 115 . In this way, instead of presenting the original image as the display image 116 (as shown in FIG. 10 ) on the first display surface 110 and the second display surface 111 , the second projected image 31 is used as the display image 115 (as shown in FIG. 11 ). Presented on the first display surface 110 and the second display surface 111, the pattern of the displayed image 115 can have a three-dimensional effect, and the pattern will not be affected by the folding angle 112 and will have continuity. In addition, the second projected image 31 as the display image 115 will not be visually deformed due to different viewing positions 40 (for example, whether the viewer views the fold-angle display 11 from a top-down position or from a downward-view position). .

Refer to Figures 12 and 13. FIG. 12 is a schematic perspective view of the first simulation surface 20 , the second simulation surface 21 and the projection surface 24 in the three-dimensional space 100 according to some embodiments of the present invention. Figure 13 is a flow chart of an image compensation method according to some embodiments of the present invention. In some embodiments of step S605, the processor 15 projects the original image to the first simulation surface 20 and the second simulation surface 21 to form a third projected image 32 (step S6051), and converts the third projected image 32 It is forward projected onto the projection surface 24 to form the first projection image 30 (step S6052). Since the first simulation surface 20 and the second simulation surface 21 are simulated from the first display surface 110 and the second display surface 111 , the processor 15 can project the original image onto the first simulation surface 20 and the second simulation surface 21 . The third projected image 32 is formed to simulate the situation when the original image is directly presented as the display image 116 (as shown in FIG. 10 ) on the first display surface 110 and the second display surface 111 . For example, the processor 15 may display the original image on the first display surface 110 and the second display surface 111 based on the pixel coordinate parameters of each pixel of the original image when the original image is directly presented on the first display surface 110 and the second display surface 111 . At the position of 111, the original image is projected onto the simulation surface coordinate parameters of the first simulation surface 20 and the second simulation surface 21 to form the third projection image 32. Then, the processor 15 forward projects the third projection image 32 to the projection surface 24 to form the first projection image 30 . That is to say, the processor 15 can indirectly project the original image to the projection surface 24 to form the first projected image 30 . Specifically, the processor 15 can convert the original image into the first projected image 30 according to the third conversion function, where the third conversion function can be expressed as Equation 3, Pv is the third conversion function, and Vo is the pixel of the pixel of the original image. The matrix of coordinate parameters, Mort is the transformation matrix of the orthographic projection, and Mvtran is the transformation matrix that converts the pixel coordinate parameters processed by the orthographic projection into the coordinate parameters of the projection surface of the projection surface 24 . In this way, compared to directly projecting the original image to the projection surface 24 , the first projection image 30 formed by indirectly projecting the original image to the projection surface 24 can be closer to the first display surface 110 and the second display of the corner display 11 The actual display state of the surface 111 is adjusted to ensure that the second projected image 31 as the displayed image 115 will not be visually deformed.

…………………………(Formula 3)

In some embodiments, the size of the projection surface 24 may be determined according to the sizes of the first simulation surface 20 and the second simulation surface 21 . For example, the size of the projection surface 24 is determined by the two sides defined by the joint edge between the first simulation surface 20 and the second simulation surface 21 being displaced a distance to both sides. Different sizes of the projection surface 24 can make the second projected image 31 as the displayed image 115 have different degrees of three-dimensionality. For example, when the displacement distance of the joining edge to both sides is small, the size of the projection surface 24 is small and the second projected image 31 has a visually distant effect; when the distance of the joining edge displacement to both sides is large, the size of the projection surface 24 The larger and second projected image 31 has a visual closer effect.

Refer to Figure 7 and Figure 14. Figure 14 is a schematic rear view of the first simulation surface 20, the second simulation surface 21 and the projection surface 24 in the three-dimensional space 100 according to some embodiments of the present invention. In some embodiments, two sides of the projection surface 24 (ie, the first side 241 and the second side 242 ) are respectively connected to the first simulation surface 20 and the second simulation surface 21 . As shown in FIG. 7 , in the first exemplary example, one of the two sides of the projection surface 24 (ie, the first side 241 ) is connected to both sides of the first simulation surface 20 (ie, the third side 201 and the fourth side 202), the other of the two sides of the projection surface 24 (i.e., the second side 242) is connected to both sides of the second simulation surface 21 (i.e., the fifth side 211 and The area between the sixth side 212). The distance between the first side 241 and the third side 201 and the distance between the first side 241 and the fourth side 202 may be the same as or different from the second side 242 and the fifth side respectively. The distance between the sides 211 and the distance between the second side 242 and the sixth side 212. As shown in FIG. 14 , in the second exemplary example, one of the two sides of the projection surface 24 (i.e., the first side 241 ) is connected to one of the two sides of the first simulation surface 20 (i.e., the third side). side 201), the other of the two sides of the projection surface 24 (ie, the second side 242) is connected to one of the two sides of the second simulation surface 21 (ie, the fifth side 211), the first simulation The other of the two sides of the surface 20 (that is, the fourth side 202) is connected to the other of the two sides of the second simulation surface 21 (that is, the sixth side 212), that is to say, the fourth side 202 And the sixth side 212 is the joint side. Compared with the first exemplary example, in the second exemplary example, the size of the projection surface 24 is larger.

As shown in FIGS. 5 and 7 , in some embodiments, the viewing position 40 is based on the distance between two sides of the first simulation surface 20 (ie, the third side 201 and the fourth side 202 ), the second It is calculated based on the distance between the two sides of the simulation surface 21 (ie, the fifth side 211 and the sixth side 212 ), the viewing angle, and a folding angle 50 between the first simulation surface 20 and the second simulation surface 21 . Here, the folding angle 50 refers to the angle formed by the other side of the light-emitting surface of the first display surface 110 and the second display surface 111 . The viewing angle is the line of sight of the viewer's eyes. In some embodiments, the fold angle 50 between the first simulation surface 20 and the second simulation surface 21 is less than 180 degrees. In some embodiments, the viewing angle is between 20 degrees and 30 degrees. For example, assume that the first simulation surface 20 and the second simulation surface 21 have the same size (that is, the distance between the third side 201 and the fourth side 202 of the first simulation surface 20 is the same as that of the second simulation surface). (the distance between the fifth side 211 and the sixth side 212 of the surface 21 ), the processor 15 can calculate the three-dimensional coordinate parameters of the viewing position 40 in the three-dimensional coordinate system of the three-dimensional space 100 according to the viewing position function. The viewing position function can be expressed as Equation 4, L1 is the distance between the viewing position 40 and the fourth side 202 (or the sixth side 212), L2 is the center between the third side 201 and the fifth side 211 The distance between the axis and the fourth side 202 (or the sixth side 212), L3 is the distance between the third side 201 and the fourth side 202 of the first simulation surface 20 (or the second simulation surface 21), θa is the half value of the fold angle 50 between the first simulation surface 20 and the second simulation surface 21, and θb is the half value of the viewing angle.

……………………………… (Formula 4)

Refer to FIG. 15 , which is a schematic three-dimensional view of a corner display 11 according to some embodiments of the present invention. In some embodiments, the fold-angle display 11 further includes a third display surface 114 connected between the first display surface 110 and the second display surface 111 . In some embodiments, the third display surface 114 and the first display surface 110 are not co-planar, and the third display surface 114 and the second display surface 111 are not co-planar. For example, the first display surface 110 and the third display surface 114 have a first folding angle 112A, and the second display surface 111 and the third display surface 114 have a second folding angle 112B. Specifically, both sides of the third display surface 114 are respectively connected to one side of the first display surface 110 and one side of the second display surface 111, so that the first display surface 110, the second display surface 111 and The display surface formed by the third display surface 114 is convex. That is, the first folding angle 112A and the second folding angle 112B are folding angles greater than 180 degrees. In some embodiments, the back plate 113 is located on the other side of the light emitting surface of the first display surface 110 , the second display surface 111 and the third display surface 114 to support the first display surface 110 , the second display surface 111 and the third display surface 114 . The third display surface 114.

Refer to Figures 16 and 17. Figure 16 is a schematic perspective view of the first simulation surface 20, the second simulation surface 21, the third simulation surface 25 and the projection surface 24 in the three-dimensional space 100 according to some embodiments of the present invention. Figure 17 is a flow chart of an image compensation method according to some embodiments of the present invention. In some embodiments, one or more commands executed by the processor 15 include steps S1601 to S1609 to implement the image compensation method. Since steps S1601, S1603, and S1605 are the same as steps S601, 603, and 605, they will not be repeated here. In step S1602 , the processor 15 simulates the third display surface 114 to establish the third simulation surface 25 connected between the first simulation surface 20 and the second simulation surface 21 in the three-dimensional space 100 . In some embodiments, since the first simulation surface 20 , the second simulation surface 21 and the third simulation surface 25 are simulated from the first display surface 110 , the second display surface 111 and the third display surface 114 , the third simulation surface 25 is not coplanar with the first simulation surface 20 , and the third simulation surface 25 is not coplanar with the second simulation surface 21 . For example, the processor 15 obtains the third three-dimensional coordinate parameter set of the three-dimensional coordinate system of the three-dimensional space 100 based on the relative position between the reference point and the third display surface 114 (for example, its four boundary points). The third three-dimensional coordinate parameter set may include multiple three-dimensional coordinate parameters. The processor 15 can establish the third simulation surface 25 in the three-dimensional space 100 based on the third three-dimensional coordinate parameter set.

In some embodiments, while the first simulation surface 20 , the second simulation surface 21 and the third simulation surface 25 are located on the front side of the back panel model 23 , the projection surface 24 is located on the rear side of the back panel model 23 . However, the present invention is not limited to this. The projection surface 24 , the first simulation surface 20 , the second simulation surface 21 and the third simulation surface 25 are all located on the same side (front side) of the back panel model 23 .

The difference from step S607 is that in step S1607 , in addition to projecting the first projection image 30 parallel to the first simulation surface 20 and the second simulation surface 21 toward the viewing position 40 , the processor 15 also projects the first projection image 30 Parallel projection toward the viewing position 40 to the third simulation surface 25 , that is to say, the processor 15 projects the first projection image 30 toward the viewing position 40 to the first simulation surface 20 , the second simulation surface 21 and the third simulation surface in parallel. 25 to form the second projected image 31. For example, the processor 15 can convert the first projection image 30 into the second projection image 31 according to the aforementioned second conversion function. Among them, in this embodiment, Mtran converts the coordinate parameters of the projection surface after parallel projection processing into the first simulation surface 20 , the second simulation surface 21 and the third simulation surface 25 corresponding to the three-dimensional coordinate system of the three-dimensional space 100 The three-dimensional coordinate parameters (ie, the simulation surface coordinate parameters). In some embodiments, parallel projection includes orthographic projection and oblique projection. Therefore, in some embodiments of step S1607, the first projection image 30 is projected to the first simulation surface 20 and the second simulation surface 21 according to different viewing positions 40 and the distribution positions of the first projection image 30 on the projection surface 24. The projection method of the third simulation surface 25 may be to use one or both of orthographic projection and oblique projection.

The difference from step S609 is that in step S1609, in addition to considering the first simulation surface 20, the second simulation surface 21 and the second projected image 31, the processor 15 also considers the third simulation surface 25, that is to say, The processor 15 forms a display image 115 on the first display surface 110 , the second display surface 111 and the third display surface 114 based on the first simulation surface 20 , the second simulation surface 21 , the third simulation surface 25 and the second projection image 31 . For example, since the first simulation surface 20 , the second simulation surface 21 and the third simulation surface 25 are simulated from the first display surface 110 , the second display surface 111 and the third display surface 114 , the processor 15 can be configured according to the first simulation surface 20 , the second simulation surface 21 and the third simulation surface 25 . The simulation surface coordinate parameters of the first simulation surface 20 , the second simulation surface 21 and the third simulation surface 25 and their corresponding pixels in the original image control the first display surface 110 , the second display surface 111 and the third display surface 114 to move the first display surface 110 to the third display surface 114 . The two projected images 31 are presented as display images 115 . In this way, the pattern of the displayed image 115 can have a three-dimensional effect, and the pattern will not be affected by the folding corners 112 and have continuity. In addition, the display image 115 will not be visually deformed due to different viewing positions 40 .

Refer to FIG. 18 , which is a flow chart of an image compensation method according to some embodiments of the present invention. In some embodiments of step S1605, the processor 15 projects the original image to the first simulation surface 20, the second simulation surface 21 and the third simulation surface 25 to form the third projected image 32 (step S16051), and The third projection image 32 is projected onto the projection surface 24 to form the first projection image 30 (step S16052). For example, the processor 15 may display the original image on the first display surface based on the pixel coordinate parameters of each pixel of the original image when the original image is directly presented on the first display surface 110, the second display surface 111, and the third display surface 114. 110. According to the positions of the second display surface 111 and the third display surface 114, the original image is projected onto the simulation surface coordinate parameters of the first simulation surface 20, the second simulation surface 21 and the third simulation surface 25 to form a third projection. Image 32. Then, the processor 15 forward projects the third projection image 32 to the projection surface 24 to form the first projection image 30 . Specifically, the processor 15 may convert the original image into the first projected image 30 according to the aforementioned third conversion function. In this way, it can be ensured that the second projected image 31 as the displayed image 115 is close to the actual display states of the first display surface 110 , the second display surface 111 and the third display surface 114 without visual distortion.

In summary, according to the embodiments of the present invention, the display image of the corner display can have a three-dimensional effect. In addition, the present invention can also make the display image of the folding display have continuity without being affected by the folding angle.

10: Corner display device 11: Corner display 110: First display surface 111: Second display surface 112: folded corners 112A: First corner 112B: Second corner 113:Back panel 114:Third display surface 115, 116: Display image 13:Memory 15: Processor 100: Three-dimensional space 20: First simulation side 201:Third side 202:Fourth side 21:Second simulation side 211:Fifth side 212:Sixth side 23: Backplane model 24: Projection surface 241:First side 242:Second side 25: The third simulation surface 30: First projected image 31: Second projected image 32: The third projected image 40:Viewing position 50: folded corner S601~S609: steps S6051~S6052: steps S1601~S1609: steps S16051~S16052: Steps

[Fig. 1] is a block diagram of a corner display device according to some embodiments of the present invention. [Fig. 2] is a three-dimensional schematic diagram of a corner display according to some embodiments of the present invention. [Fig. 3] is a schematic front view of a corner display according to some embodiments of the present invention. [Fig. 4] is a flow chart of an image compensation method according to some embodiments of the present invention. [Fig. 5] is a three-dimensional perspective view of the first simulation surface, the second simulation surface and the projection surface in the three-dimensional space according to some embodiments of the present invention. [Fig. 6] is a schematic front view of the first simulation surface, the second simulation surface and the projection surface in the three-dimensional space according to some embodiments of the present invention. [Fig. 7] is a schematic rear view of the first simulation surface, the second simulation surface and the projection surface in the three-dimensional space according to some embodiments of the present invention. [Fig. 8] is a three-dimensional perspective view of the first simulation surface, the second simulation surface and the projection surface in the three-dimensional space according to some embodiments of the present invention. [Fig. 9] is a schematic front view of the first simulation surface, the second simulation surface and the projection surface in the three-dimensional space according to some embodiments of the present invention. [Fig. 10] is a schematic front view of a corner display according to a comparative example of the present invention. [Fig. 11] is a schematic front view of a corner display according to some embodiments of the present invention. [Fig. 12] is a three-dimensional perspective view of the first simulation surface, the second simulation surface and the projection surface in the three-dimensional space according to some embodiments of the present invention. [Fig. 13] is a flow chart of an image compensation method according to some embodiments of the present invention. [Fig. 14] is a schematic rear view of the first simulation surface, the second simulation surface and the projection surface in the three-dimensional space according to some embodiments of the present invention. [Fig. 15] is a three-dimensional schematic diagram of a corner display according to some embodiments of the present invention. [Fig. 16] is a three-dimensional perspective view of the first simulation surface, the second simulation surface, the third simulation surface and the projection surface in the three-dimensional space according to some embodiments of the present invention. [Fig. 17] is a flow chart of an image compensation method according to some embodiments of the present invention. [Fig. 18] is a flow chart of an image compensation method according to some embodiments of the present invention.

S601~S609: steps

Claims (20)

A corner display device, including: A fold-angle display includes a first display surface and a second display surface, and the first display surface and the second display surface are not coplanar; a memory to store one or more commands; and A processor, coupled to the memory and the corner display, is used to access and execute the one or more commands of the memory. The one or more commands include: Simulate the first display surface and the second display surface to respectively establish a first simulation surface and a second simulation surface in a three-dimensional space; Establish a projection surface in the three-dimensional space; Project an original image onto the projection surface to form a first projected image; Project the first projection image parallel to the first simulation surface and the second simulation surface toward a viewing position to form a second projection image; and According to the first simulation surface, the second simulation surface and the second projection image, a display image is formed on the first display surface and the second display surface. The corner display device of claim 1, wherein the command to form the first projection image is to project the original image to the first simulation surface and the second simulation surface to form a third projection image, The third projection image is forward projected onto the projection surface to form the first projection image. The corner display device of claim 1, wherein both sides of the projection surface are respectively connected to the first simulation surface and the second simulation surface. The corner display device according to claim 3, wherein one of the two sides of the projection surface is connected to an area between the two sides of the first simulation surface, and one of the two sides of the projection surface is The other one is connected to the area between the two sides of the second simulation surface. The corner display device according to claim 3, wherein one of the two sides of the projection surface is connected to one of the two sides of the first simulation surface, and the other of the two sides of the projection surface is connected to one of the two sides of the first simulation surface. One is connected to one of the two sides of the second simulation surface, and the other of the two sides of the first simulation surface is connected to the other of the two sides of the second simulation surface. The corner display device as claimed in claim 4 or 5, wherein the viewing position is based on the distance between the two sides of the first simulation surface and the distance between the two sides of the second simulation surface. , a viewing angle and a folding angle between the first simulation surface and the second simulation surface. The corner display device of claim 1, wherein the corner display further includes a third display surface connected between the first display surface and the second display surface, and the one or more commands further include simulating the The third display surface is used to establish a third simulation surface connected between the first simulation surface and the second simulation surface in the three-dimensional space; wherein, the command to form the second projection image is to convert the first simulation surface to the third display surface. The projected image is projected parallel to the first simulation surface, the second simulation surface and the third simulation surface toward the viewing position to form the second projection image; wherein the command to form the display image is based on the first The simulation surface, the second simulation surface, the third simulation surface and the second projection image form the display image on the first display surface, the second display surface and the third display surface. The corner display device of claim 7, wherein the command to form the first projected image is to project the original image to the first simulation surface, the second simulation surface and the third simulation surface to form A third projection image is projected onto the projection surface to form the first projection image. The corner display device according to claim 1, wherein the projection surface is a plane. The corner display device of claim 1, wherein the projection surface is a curved surface. An image compensation method, including: Simulating a first display surface and a second display surface of a fold-angle display to respectively establish a first simulation surface and a second simulation surface in a three-dimensional space, wherein the first display surface and the second display surface are different flat; Establish a projection surface in the three-dimensional space; Project an original image onto the projection surface to form a first projected image; Project the first projection image parallel to the first simulation surface and the second simulation surface toward a viewing position to form a second projection image; and According to the first simulation surface, the second simulation surface and the second projection image, a display image is formed on the first display surface and the second display surface. The image compensation method according to claim 11, wherein the step of forming the first projection image is to project the original image to the first simulation surface and the second simulation surface to form a third projection image, and The third projection image is forward projected onto the projection surface to form the first projection image. The image compensation method as claimed in claim 11, wherein both sides of the projection surface are respectively connected to the first simulation surface and the second simulation surface. The image compensation method according to claim 13, wherein one of the two sides of the projection surface is connected to the area between the two sides of the first simulation surface, and the two sides of the projection surface are The other one is connected to the area between the two sides of the second simulation surface. The image compensation method according to claim 13, wherein one of the two sides of the projection surface is connected to one of the two sides of the first simulation surface, and the other of the two sides of the projection surface is connected to one of the two sides of the first simulation surface. One is connected to one of the two sides of the second simulation surface, and the other of the two sides of the first simulation surface is connected to the other of the two sides of the second simulation surface. The image compensation method as described in claim 14 or 15, wherein the viewing position is based on the distance between the two sides of the first simulation surface and the distance between the two sides of the second simulation surface. , a viewing angle and a folding angle between the first simulation surface and the second simulation surface. The image compensation method according to claim 11, wherein a third display surface of the corner display is connected between the first display surface and the second display surface, and the image compensation method further includes simulating the third display surface , to establish a third simulation surface connected between the first simulation surface and the second simulation surface in the three-dimensional space; wherein the step of forming the second projection image is to direct the first projection image toward the viewing Positions are projected parallel to the first simulation surface, the second simulation surface and the third simulation surface to form the second projection image; wherein, the step of forming the display image is based on the first simulation surface, the second simulation surface The simulation surface, the third simulation surface and the second projection image form the display image on the first display surface, the second display surface and the third display surface. The image compensation method according to claim 17, wherein the step of forming the first projected image is to project the original image to the first simulation surface, the second simulation surface and the third simulation surface to form a A third projection image is projected onto the projection surface to form the first projection image. The image compensation method as claimed in claim 11, wherein the projection plane is a plane. The image compensation method as claimed in claim 11, wherein the projection surface is a curved surface.

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