Display method and display equipment

Abstract

The invention provides a display method and display equipment, and belongs to the technical field of display equipment. The display method is applied to the display equipment, the display equipment comprises a transparent screen and a dimming screen overlapped with the transparent screen, external light can penetrate through the dimming screen to irradiate a transparent display area, and the display method comprises the steps that at least one target display area is determined on the transparent screen, and position coordinates of the target display area are obtained; obtaining a mapping coordinate corresponding to the position coordinate on the dimming screen, and generating a target dimming area corresponding to the target display area based on the mapping coordinate; and adjusting the light transmittance of the whole area or the local area of the target dimming area so as to enhance or weaken the display effect of the target display area.

Description

Technical Field

[0001] The present invention belongs to the technical field of display devices, and in particular relates to a display method and a display device. Background Art

[0002] Compared with traditional display screens, transparent screens have the problem of poor privacy. Due to their transparent nature, content can be more easily peeped in some public scenarios, posing the problem of data leakage. Summary of the Invention

[0003] In view of the above problems in the prior art, an object of the embodiments of the present invention is to provide a display method and a display device.

[0004] The technical solution adopted in the embodiment of the present invention is:

[0005] A display method is provided for use on a display device, wherein the display device includes a transparent screen and a dimming screen superimposed on the transparent screen, wherein external light can pass through the dimming screen and illuminate the transparent display area, the display method comprising:

[0006] Determining at least one target display area on the transparent screen, and obtaining the position coordinates of the target display area;

[0007] Acquire mapping coordinates corresponding to the position coordinates on the dimming screen;

[0008] generating a target dimming area corresponding to the target display area based on the mapping coordinates;

[0009] The transmittance of the entire area or a partial area of the target dimming area is adjusted to enhance or weaken the display effect of the target display area.

[0010] In some embodiments, obtaining the position coordinates of the target display area includes:

[0011] In response to obtaining a target operation, determining the target display area based on the target operation;

[0012] Determine target position information of the target operation on the transparent screen;

[0013] Based on the target position information, the position coordinates of the target display area are acquired.

[0014] In some embodiments, the target operation includes at least a first interaction operation, and in response to obtaining the target operation, determining the target display area based on the target operation includes:

[0015] In response to obtaining a first interactive operation, the first interactive operation represents moving or scaling the target window to form the target display area;

[0016] The position coordinates of the target window are obtained in real time.

[0017] In some embodiments, obtaining the position coordinates of the target window in real time includes:

[0018] Acquire a first position coordinate of the target window during the moving process and an instantaneous speed corresponding to the first position coordinate;

[0019] A second position coordinate of the target window is predicted based on at least the first position coordinate and the instantaneous velocity.

[0020] In some embodiments, obtaining the position coordinates of the target window in real time includes:

[0021] Obtaining the acceleration of the target window during the movement;

[0022] When the acceleration exceeds the first threshold, obtaining a third position coordinate of the target window after the target window stops moving;

[0023] and / or,

[0024] Obtaining the path curvature of the target window during the moving process;

[0025] When the path curvature exceeds the second threshold, a third position coordinate of the target window after the target window stops moving is acquired.

[0026] In some embodiments, the target operation includes at least a second interaction operation, and in response to obtaining the target operation, determining the target display area based on the target operation includes:

[0027] In response to obtaining a second interactive operation, the second interactive operation represents selecting a custom area on the transparent screen to form the target display area;

[0028] The position coordinates of the target window are obtained in real time.

[0029] In some embodiments, obtaining mapping coordinates corresponding to the position coordinates on the dimming screen includes:

[0030] Determine a first polar coordinate system corresponding to the transparent screen and a second polar coordinate system corresponding to the dimming screen;

[0031] Determine a first polar diameter and a polar angle corresponding to the position coordinates in a first polar coordinate system;

[0032] Determining the maximum polar diameter ratio of the transparent screen and the dimming screen in the corresponding polar coordinate system;

[0033] Obtaining a second polar diameter corresponding to the first polar diameter in a second polar coordinate system according to the maximum polar diameter ratio and the first polar diameter;

[0034] The mapping coordinates are obtained according to the second polar diameter and polar angle.

[0035] In some embodiments, the target display area includes a first target display area and a second target display area, and the method includes:

[0036] In the case where the first target dimming zone corresponding to the first target display area and the second target dimming zone corresponding to the second target display area partially overlap,

[0037] Obtaining an overlapping area and a non-overlapping area of the first target dimming zone and the second target dimming zone;

[0038] The light transmittance of the overlapping area is maintained, and the light transmittance of the non-overlapping area is adjusted separately to enhance or weaken the display effect of the target display area.

[0039] In some embodiments, further comprising:

[0040] Acquire an edge area of the target dimming zone;

[0041] Perform linear transparency attenuation on the edge area.

[0042] A display device, comprising:

[0043] a transparent screen, on which a target display area can be determined;

[0044] a dimming screen, superimposed on the dimming screen, wherein external light can pass through the dimming screen and illuminate the transparent display area, and a target dimming area corresponding to the target display area can be generated on the dimming screen;

[0045] A control system is electrically connected to the transparent screen and the dimming screen respectively, and is used to adjust the transmittance of the target shading area to enhance or weaken the display effect of the target display area.

[0046] This disclosure is an overview of various implementations or examples of the technology, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. The drawings illustrate various embodiments generally by way of example and not limitation, and together with the description and claims, serve to explain the embodiments of the invention. Where appropriate, like reference numerals are used throughout the drawings to refer to the same or similar parts.

[0048] Figure 1 A schematic diagram of the implementation flow of the display method provided in Example 1 of the present application;

[0049] Figure 2 A schematic diagram of the implementation flow of the display method provided in Example 2 of the present application;

[0050] Figure 3 A schematic diagram of the implementation flow of the display method provided in Example 3 of the present application;

[0051] Figure 4 A schematic diagram of the implementation flow of the display method provided in Example 4 of the present application;

[0052] Figure 5 A schematic diagram of the implementation flow of the display method provided in Example 5 of the present application;

[0053] Figure 6 A schematic diagram of the implementation flow of the display method provided in Example 6 of the present application;

[0054] Figure 7 A schematic diagram of the implementation flow of the display method provided in Example 7 of the present application;

[0055] Figure 8 A schematic diagram of the three-dimensional structure of a display device provided in an embodiment of the present application;

[0056] Figure 9 This is an exploded view of the display device provided in an embodiment of the present application.

[0057] In the figure: 1. Transparent screen; 2. Dimming screen; 3. Target display area; 4. Eye dimming area. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0060] Transparent screens currently offer a disadvantage compared to traditional screens, however, in bright sunlight, particularly when the screen's back is strongly illuminated, resulting in poor display quality. The traditional solution involves a physical black background that electrically lifts and lowers to block backlight for a better display. This approach is not only slow, resulting in a poor user experience, but also prevents the user from selecting areas to hide on the transparent screen.

[0061] To solve the above technical problems, an embodiment of the present application provides a display method for use on a display device, wherein the display device can be a television, a laptop computer, or other display device with a smart display screen.

[0062] The display device may include a transparent screen 1 and a dimming screen 2 stacked on the transparent screen 1 , and external light can pass through the dimming screen 2 and illuminate the transparent display area.

[0063] The transparent screen 1 may be a transparent OLED display screen, a transparent LCD display screen, a transparent LED display screen, etc.

[0064] The dimming screen 2 may be a liquid crystal screen, and the arrangement of liquid crystal molecules in the liquid crystal screen may be controlled by an electric field, thereby adjusting the transmittance of light on the liquid crystal screen.

[0065] like Figure 1 and Figure 9 As shown, the display method of the embodiment of the present application includes at least the following steps:

[0066] Step 100 : Determine at least one target display area 3 on the transparent screen 1 , and obtain the position coordinates of the target display area 3 .

[0067] In this embodiment, the target display area 3 can be determined by taking a screenshot or selecting a frame to determine an area, and the area can be determined as the target display area 3. For example, a cursor on the display screen can be controlled to move to capture an area on the display screen, and the captured area can form the target display area 3.

[0068] Alternatively, a target window on the transparent screen 1 may be directly selected to determine the target window as the target display area 3 .

[0069] In addition, the position coordinates of the target display area 3 may be a combination of coordinates that can display the entire area or size of the area. For example, if the target display area 3 is rectangular, the position coordinates of the target display area 3 are the position coordinates of its four corners; if the target display area 3 is circular, the position coordinates of the target display area 3 may be the coordinates of any three points along the circumference.

[0070] Step 200 : Obtain mapping coordinates corresponding to the position coordinates on the dimming screen 2 .

[0071] The number of mapping coordinates may be equal to the number of position coordinates. For example, if the number of position coordinates is four, the number of corresponding mapping coordinates may also be four.

[0072] Step 300: Generate a target dimming zone 4 corresponding to the target display zone 3 based on the mapping coordinates;

[0073] The target dimming zone 4 can be understood as an area on the dimming screen 2 whose transmittance can be independently controlled. The area of the target dimming zone 4 is at least larger than or equal to the area of the target display zone 3 to avoid affecting the display effect around the target display zone 3.

[0074] Step 400 : Adjust the transmittance of the entire area or a partial area of the target dimming area 4 to enhance or weaken the display effect of the target display area 3 .

[0075] Among them, the transmittance of the target dimming area 4 can be reduced to change the background brightness of the target display area 3, thereby enhancing the display effect of the target display area 3; or, the transmittance of the target dimming area 4 can be increased to weaken the display effect of the target display area 3.

[0076] The display method of this embodiment can independently select the target display area 3 on the transparent screen 1 without affecting the display effect of the transparent screen 1, and generate a target dimming area 4 corresponding to the target display area 3 on the dimming screen 2. The display effect of the target display area 3 is enhanced or weakened by adjusting the transmittance of the target dimming area 4. This display method can independently select the area to be hidden on the transparent screen 1, and can adjust its transmittance according to the selected hidden area, thereby improving the privacy of the transparent screen and enhancing the user experience.

[0077] like Figure 2 As shown, in some embodiments, obtaining the position coordinates of the target display area 3 in the embodiment of the present application may include:

[0078] Step 101: In response to obtaining a target operation, determining a target display area 3 based on the target operation;

[0079] In the embodiment of the present application, the transparent screen 1 can respond to a specific trigger operation to achieve a target operation.

[0080] The specific triggering operation may be to control the cursor of the display screen with a mouse to determine the target display area 3. For example, the cursor may be controlled to frame a specific area on the transparent screen 1, thereby determining the selected specific area as the target display area 3. Alternatively, the cursor may be controlled to select a target window on the transparent screen 1, thereby determining the target window as the target display area 3.

[0081] Of course, the transparent screen 1 can also determine the target display area 3 by the user performing a specific gesture operation on its display interface.

[0082] Step 102: Determine target position information of the target operation on the transparent screen 1;

[0083] Step 103: Based on the target position information, obtain the position coordinates of the target display area 3.

[0084] The target position information of the target operation on the transparent screen 1 may be determined according to the type of the target operation.

[0085] For example, when the target operation is to use the cursor to select or cut out the target display area 3 on the transparent screen 1, the cursor position coordinates can be directly obtained, and the cursor position coordinates are the position coordinates of the target display area 3. For example, when the user presses the left mouse button, the starting point of the cursor (x1, y1) is recorded, and after dragging the cursor to select the range of the target display area 3, when the left mouse button is released, the end point of the cursor (x2, y2) is recorded, and the position coordinates of the target display area 3 can be (x1, y1, x2, y2).

[0086] Alternatively, when the target operation is to select a target window by controlling the cursor with a mouse to determine the target display area 3, a mouse hook can be installed on the transparent screen 1, and then the Set Windows Hook Ex function of the Windows API is used to monitor mouse events to obtain the position coordinates of the target window.

[0087] In some embodiments, the target operation may include at least a first interaction operation. In response to obtaining the target operation, determining the target display area 3 based on the target operation may include:

[0088] Step 104: In response to obtaining a first interactive operation, the first interactive operation represents moving or scaling the target window to form a target display area 3;

[0089] The first interactive operation may be an interactive operation with the transparent screen 1. For example, if the transparent screen 1 is a non-touch screen, if the user wants to move a target window, they can use the mouse to control the cursor on the screen to select the target window, and then move the mouse to move the target window. If the user wants to zoom in or out of the target window, they can also use the mouse wheel to zoom in or out of the target window after selecting the target window.

[0090] Alternatively, when the transparent screen 1 is a touch screen, if the user wants to move a target window, the user can touch the corresponding target window on the screen and then move the finger on the screen to move the target window.

[0091] Step 105: Acquire the position coordinates of the target window in real time.

[0092] It is understandable that during the process of moving or scaling the target window, the position coordinates of the target window are continuously obtained. For example, during the process of moving the target window from position A to position B, the position coordinates continuously change, and the corresponding mapping coordinates also change accordingly, thereby achieving the movement of the target dimming area 4 following the movement of the target display area 3.

[0093] When the target window is selected, the target window can be moved, and the movement of the target window will inevitably cause the position of the eye dimming zone on the dimming screen 2 to change. Therefore, obtaining the position coordinates of the target window in real time can facilitate the adjustment of the position of the target dimming zone 4.

[0094] like Figure 3 As shown, in some embodiments, obtaining the position coordinates of the target window in real time may include:

[0095] Step 106: Acquire the first position coordinates of the target window during the movement process and the instantaneous speed corresponding to the first position coordinates;

[0096] Step 107: Predicting a second position coordinate of the target window based at least on the first position coordinate and the instantaneous velocity.

[0097] For example, assuming that when the transparent screen 1 is in the t-1 frame, the position coordinates of the target window during the movement process on the transparent screen 1 are (x (t-1) ,y (t-1) ), when the transparent screen 1 is in the t-th frame, the position coordinates of the target window moving on the transparent screen 1 are (x (t) ,y (t) ), the corresponding instantaneous speed can be (vx (t) ,v y (t) ), then according to (x (t) ,y (t) ) and (v x (t) ,v y (t) ) predicts that when the transparent screen 1 is in the t+1 frame, the position coordinates of the target window moving on the transparent screen 1 are (x (t+1) ,y (t+1) ).

[0098] Among them, (x (t) ,y (t) ) can be understood as the first position coordinate of the target window, (x (t+1) ,y (t+1) ) can be understood as the second position coordinate of the target window.

[0099] For example, first obtain the instantaneous speed of the target window corresponding to the first position coordinate:

[0100]

[0101] Among them, x (t) ,y (t) is the position coordinate of the target window at the tth frame.

[0102] v x (t) ,v y (t) is the instantaneous velocity of the target window at the tth frame.

[0103] Secondly, the second position coordinate of the target window is predicted according to the obtained first position coordinate and instantaneous speed.

[0104]

[0105] Where: α is the experimental value of the predicted attenuation factor, which can be 0.6-0.8.

[0106] Compared to traditional methods that rely on real-time coordinate updates and cannot cope with sudden changes in movement, the method of obtaining the position coordinates of the target window in this application can achieve real-time tracking while avoiding abnormal displays caused by misoperation. At the same time, when the target window moves continuously, its next frame position is predicted based on historical coordinate data, and the mapping coordinates on the dimming screen 2 can be updated in advance, reducing visual delay.

[0107] Since the target window may freeze or disappear during the process of moving or scaling, the corresponding target dimming area 4 may display abnormally. Figure 4As shown, in some embodiments, obtaining the position coordinates of the target window in real time may include:

[0108] Step 108: Obtain the acceleration and path curvature of the target window during the movement process;

[0109] Step 109: when the acceleration exceeds the first threshold or when the path curvature exceeds the second threshold, obtaining third position coordinates of the target window after it stops moving;

[0110] It should be noted that the third position coordinate of the target window can be understood as the coordinate of the position where the target window is located when the moving operation is terminated.

[0111] For example, assuming that when the transparent screen 1 is in the t-1 frame, the corresponding speed of the first position of the target window is When the transparent screen 1 is in the tth frame, the corresponding speed of the second position of the target window is

[0112] Then the acceleration a of the target window movement (t) for:

[0113]

[0114] when a (t) >a threshold It can be determined as abnormal movement, and the third position coordinate of the target window is obtained. threshold This is an empirical value, taking the maximum acceleration of a human hand dragging the target window. The experimentally measured value is about 5000px / s 2 .

[0115] Assume that the path curvature κ of the target window during movement is:

[0116]

[0117] When κ>κ max When κ is detected, it can be determined as abnormal motion, and the third position coordinate of the target window is obtained. The threshold of κ can be determined according to the motion type of the target window.

[0118] Compared with the traditional single threshold judgment, this implementation method combines the two parameters of acceleration and curvature, and combines experimental experience values to judge the abnormality during the movement of the target window, which is more reasonable and avoids abnormal display problems in the target dimming zone 4.

[0119] In some embodiments, the target operation may include at least a second interactive operation. In response to obtaining the target operation, determining the target display area 3 based on the target operation may include:

[0120] Step 110: In response to obtaining a second interactive operation, the second interactive operation represents selecting a custom area on the transparent screen 1 to form a target display area 3;

[0121] The second interactive operation may also be an interactive operation with the transparent screen 1 .

[0122] For example, when the transparent screen 1 is a non-touch screen, if the user wants to determine the target window, he or she can press the left or right button of the mouse and drag the cursor on the control screen to capture a part of the display area on the screen. The captured display area can form the target display area 3, so that the range of the target display area 3 can be determined independently according to the user's needs.

[0123] Of course, the user can also capture the target display area 3 on the screen by using a combination of mouse and shortcut keys.

[0124] In the case where the transparent screen 1 is a touch screen, the user can touch the display screen and intercept a portion of the display area on the screen with the user's finger, thereby forming a target display area 3.

[0125] Step 111: Acquire the position coordinates of the target window in real time.

[0126] It is understandable that during the process of moving or scaling the target window, the position coordinates of the target window are continuously acquired. For example, during the process of moving the target window from position A to position B, the position coordinates are constantly changing, and the corresponding mapping coordinates will also change accordingly. Real-time acquisition of the position coordinates of the target window can update the mapping coordinates in real time, thereby achieving the movement of the target dimming area 4 following the movement of the target display area 3.

[0127] When the target window is selected, the target window can be moved, and the movement of the target window will inevitably cause the position of the eye dimming zone on the dimming screen 2 to change. Therefore, the position of the target dimming zone 4 can be easily adjusted by obtaining the position coordinates of the target window in real time.

[0128] like Figure 5 As shown, in some embodiments, obtaining mapping coordinates corresponding to the position coordinates on the dimming screen 2 may include:

[0129] Step 201: Determine a first polar coordinate system corresponding to the transparent screen 1 and a second polar coordinate system corresponding to the dimming screen 2;

[0130] Step 202: Determine a first polar diameter and a first polar angle corresponding to the position coordinates in a first polar coordinate system;

[0131] Step 203: determining the maximum polar diameter ratio of the transparent screen 1 and the dimming screen 2 in the corresponding polar coordinate system;

[0132] Step 204: Obtaining a second polar diameter corresponding to the first polar diameter in a second polar coordinate system according to the maximum polar diameter ratio and the first polar diameter;

[0133] Step 205: Obtain mapping coordinates according to the second polar diameter and polar angle.

[0134] For example, assume that the position coordinates of the target window on the transparent screen 1 are (x a ,y a ), firstly, the position coordinates of the target window (x a ,y a ) to polar coordinates (r a ,θ a ).

[0135] Where: r a It can be understood as the first polar diameter corresponding to the position coordinate in the first polar coordinate system, θ a It can be understood as the polar angle corresponding to the position coordinate in the first polar coordinate system.

[0136]

[0137] Among them, x a and y a is the position coordinate on the transparent screen 1;

[0138] C ax =Wa / 2 and C ay =Ha / 2 the center coordinate of the transparent screen 1.

[0139] Secondly, according to the maximum polar diameter ratio of transparent screen 1 and dimming screen 2 in the corresponding polar coordinate system The first polar radius r corresponding to the position coordinate a , to obtain the first polar radius r a The corresponding second polar diameter r in the second polar coordinate system b .

[0140]

[0141] in, is the maximum polar diameter of the transparent screen 1;

[0142] is the maximum pole diameter of the dimming screen 2.

[0143] Finally, according to the second polar radius r b and polar angle θ a , get the mapping coordinates (x b ,y b ).

[0144]

[0145] Among them, C bx =W b / 2,C by =H b / 2 are the center coordinates of dimming screen 2.

[0146] Compared with traditional linear mapping, when the aspect ratio and resolution of transparent screen 1 and dimming screen 2 are significantly different, polar scaling rather than scaling the X / Y axis separately can ensure that the shape of the target dimming holding area is not deformed, avoiding stretching distortion.

[0147] like Figure 6 As shown, in some embodiments, the target display area 3 may include a first target display area and a second target display area. The method of this embodiment may further include:

[0148] Step 500: When a first target dimming zone corresponding to a first target display area partially overlaps with a second target dimming zone corresponding to a second target display area, obtaining an overlapping area and a non-overlapping area between the first target dimming zone and the second target dimming zone;

[0149] The first target dimming zone and the second target dimming zone can be understood as two different dimming areas located on the dimming screen, and the two dimming areas are generated successively. For example, after the first target dimming zone is generated, the second target dimming zone is generated. The two different dimming areas have overlapping areas and non-overlapping areas.

[0150] Step 600 : Maintaining the transmittance of the overlapping area and adjusting the transmittance of the non-overlapping area separately to enhance or weaken the display effect of the target display area 3 .

[0151] For example, assuming A represents the first target display area and B represents the second target display area, then the overlapping area C = A∩B and the non-overlapping area D = (AC)∪(BC). Adjusting the transmittance of the non-overlapping area separately can reduce the full-screen refresh overhead of the dimming screen 2.

[0152] like Figure 7 As shown, in some embodiments, it also includes:

[0153] Step 700: Acquire the edge area of the target dimming zone 4;

[0154] The edge area of the target dimming zone 4 can be represented by an edge distance field, and the edge area of the target dimming zone 4 can be obtained by calculating using a geometric edge distance field algorithm.

[0155] For example, the edge equations of the target dimming zone 4 may be standardized first: a=Δy, b=-Δx, c=Δx*y1-Δy*x1.

[0156] Then calculate the edge distance field d(x,y):

[0157]

[0158] Where (Δx, Δy) is the coordinate difference of the edges of the quadrilateral in the selected area (x2-x1, y2-y1).

[0159] (x1,y1) is the coordinate of the starting point of the edge.

[0160] d(x,y) is the minimum signed distance from a pixel to an edge.

[0161] Step 800: Perform linear transparency attenuation on the acquired edge area.

[0162] A nonlinear attenuation function may be used to perform linear transparency attenuation on the acquired edge region.

[0163] Specifically, the nonlinear attenuation model is

[0164]

[0165] Where: r is the softening radius (unit: pixel), and it is recommended to be 1-3% of the target display size.

[0166] k is the attenuation exponent (k=1.5), which adjusts the shape of the transition curve (when k>1, the edge is sharper, when k<1, it is softer). It is recommended to set k=1.2-1.8. If artistic effects are required, it can be expanded to k=0.5-3.0.

[0167] d(x,y) is the signed distance value from the distance field.

[0168] In this method, linear transparent attenuation is performed on the edge area of the target dimming zone 4, which is more in line with the gradient effect perceived by the human eye and can support target dimming zones 4 with complex shapes.

[0169] like Figures 8 and 9 As shown, an embodiment of the present application further provides a display device, which includes a transparent screen 1, a dimming screen 2 and a control system.

[0170] A target display area 3 can be determined on the transparent screen 1. The transparent screen 1 can be a transparent OLED display screen, a transparent LCD display screen, a transparent LED display screen, and the like.

[0171] The target display area 3 may be a system window on the transparent screen 1 , such as a floating window, or may be a certain display area of the transparent screen 1 .

[0172] The target display area 3 may be determined by selecting a system window with a cursor on the transparent screen 1 , and the system window becomes the target display area 3 .

[0173] Alternatively, a portion of the transparent screen 1 is cut out by frame selection, and the cut out region becomes the target display area 3 .

[0174] The dimming screen 2 is stacked with the transparent screen 1, and external light can pass through the dimming screen 2 and illuminate the transparent display area, and the dimming screen 2 can generate a target dimming area 4 corresponding to the target display area 3. The dimming screen 2 can be a liquid crystal screen.

[0175] The control system is electrically connected to the transparent screen 1 and the dimming screen 2 respectively, and is used to adjust the light transmittance of the target shading area to enhance or weaken the display effect of the target display area 3.

[0176] The display device of this embodiment can independently select the target display area 3 on the transparent screen 1 without affecting the display effect of the transparent screen 1, and generate a target dimming area 4 corresponding to the target display area 3 on the dimming screen 2. The display effect of the target display area 3 is enhanced or weakened by adjusting the transmittance of the target dimming area 4. The display device can independently select the area to be hidden on the transparent screen 1, and can adjust the transmittance of the eye dimming area on the dimming screen 2 according to the selected hidden area, thereby improving the privacy of the transparent screen and enhancing the user experience.

[0177] In some embodiments, the area of the dimming screen 2 may be greater than or equal to the area of the entire transparent screen 1. When the area of the dimming screen 2 is greater than the area of the transparent screen 1, the dimming screen 2 may enhance or weaken the display effect of the entire transparent screen 1.

[0178] When the area of the dimming screen 2 is equal to the area of the transparent screen 1 , the aesthetics of the entire display device can be improved.

[0179] The dimming screen 2 can be attached to the transparent screen 1, or the two screens can be connected together with the help of a specific connector to reduce the thickness of the entire display device.

[0180] In some embodiments, the dimming screen 2 may include a panel assembly and a panel control circuit. The panel assembly includes two parallel transparent electrode plates and liquid crystal molecules positioned between the two transparent electrode plates. Liquid crystal material is filled between the two transparent electrode plates to form the dimming screen 2. The transmittance of the dimming screen 2 is adjusted by electrically deflecting the liquid crystal.

[0181] Specifically, based on the existing LCD screen, the horizontal polarizer, color filter, vertical filter, and backlight layer can be removed, leaving only the liquid crystal detection and control circuits, thereby forming a dimming screen 2. It should be noted that the eye dimming zone is an area on the dimming screen 2, and the transmittance of this area can be adjusted independently by adjusting the electric field in this area.

[0182] The panel control circuit is connected to the panel assembly, and the panel control circuit is electrically connected to the control system. The control system can change the electric field of the target light-transmitting area through the panel control circuit to change the transmittance of the target display area 3.

[0183] Combine the LCD screen and the transparent screen 1. In normal mode, the LCD screen can be in a translucent state (the display effect is similar to a full white display). After the eye dimming zone is determined, the electric field of the eye dimming zone can be changed to deflect the liquid crystal in the eye dimming zone, so that the eye dimming zone becomes black, so as to reduce the transmittance of the eye dimming zone and improve the display effect of the target display area 3.

[0184] An LCD screen is selected as the dimming screen 2, which can adjust the transmittance of the vision dimming area at a fast speed and can achieve rapid adjustment.

[0185] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure. Furthermore, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A display method for a display device, wherein the display device includes a transparent screen and a dimming screen superimposed on the transparent screen, wherein external light can pass through the dimming screen and illuminate the transparent display area, the display method comprising: Determining at least one target display area on the transparent screen, and obtaining the position coordinates of the target display area; Acquire mapping coordinates corresponding to the position coordinates on the dimming screen; generating a target dimming area corresponding to the target display area based on the mapping coordinates; The transmittance of the entire area or a partial area of the target dimming area is adjusted to enhance or weaken the display effect of the target display area.

2. The display method according to claim 1, wherein obtaining the position coordinates of the target display area comprises: In response to obtaining a target operation, determining the target display area based on the target operation; Determine target position information of the target operation on the transparent screen; Based on the target position information, the position coordinates of the target display area are acquired.

3. The display method according to claim 2, wherein the target operation includes at least a first interactive operation, and in response to obtaining the target operation, determining the target display area based on the target operation comprises: In response to obtaining a first interactive operation, the first interactive operation represents moving or scaling the target window to form the target display area; The position coordinates of the target window are obtained in real time.

4. The display method according to claim 3, wherein acquiring the position coordinates of the target window in real time comprises: Acquire a first position coordinate of the target window during the moving process and an instantaneous speed corresponding to the first position coordinate; A second position coordinate of the target window is predicted based on at least the first position coordinate and the instantaneous velocity.

5. The display method according to claim 3, wherein acquiring the position coordinates of the target window in real time comprises: Obtaining the acceleration of the target window during the movement; When the acceleration exceeds the first threshold, obtaining a third position coordinate of the target window after the target window stops moving; and / or, Obtaining the path curvature of the target window during the movement; When the path curvature exceeds the second threshold, a third position coordinate of the target window after the target window stops moving is acquired.

6. The display method according to claim 2, wherein the target operation includes at least a second interactive operation, and in response to obtaining the target operation, determining the target display area based on the target operation comprises: In response to obtaining a second interactive operation, the second interactive operation represents selecting a custom area on the transparent screen to form the target display area; The position coordinates of the target window are obtained in real time.

7. The display method according to claim 1, wherein obtaining mapping coordinates corresponding to the position coordinates on the dimming screen comprises: Determine a first polar coordinate system corresponding to the transparent screen and a second polar coordinate system corresponding to the dimming screen; Determine a first polar diameter and a polar angle corresponding to the position coordinates in a first polar coordinate system; Determining the maximum polar diameter ratio of the transparent screen and the dimming screen in the corresponding polar coordinate system; Obtaining a second polar diameter corresponding to the first polar diameter in a second polar coordinate system according to the maximum polar diameter ratio and the first polar diameter; The mapping coordinates are obtained according to the second polar diameter and polar angle.

8. The display method according to claim 1, wherein the target display area includes a first target display area and a second target display area, and the method comprises: In the case where the first target dimming zone corresponding to the first target display area and the second target dimming zone corresponding to the second target display area partially overlap, Obtaining an overlapping area and a non-overlapping area of the first target dimming zone and the second target dimming zone; The light transmittance of the overlapping area is maintained, and the light transmittance of the non-overlapping area is adjusted separately to enhance or weaken the display effect of the target display area.

9. The display method according to claim 1, further comprising: Acquire an edge area of the target dimming zone; Perform linear transparency attenuation on the edge area.

10. A display device comprising: a transparent screen, on which a target display area can be determined; a dimming screen, superimposed on the dimming screen, wherein external light can pass through the dimming screen and illuminate the transparent display area, and a target dimming area corresponding to the target display area can be generated on the dimming screen; The control system is electrically connected to the transparent screen and the dimming screen respectively, and is used to adjust the transmittance of the target shading area to enhance or weaken the display effect of the target display area.

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