Display device and display method

Abstract

The application relates to a display device and a display method. The display device comprises at least two display screens which can be spliced; the display screen comprises a planar display part and a bent display part connected with the planar display part, and a splicing gap is arranged between the bent display parts of two adjacent display screens; the display device further comprises an optical adjustment unit arranged in the splicing gap, the optical adjustment unit has two optical interfaces, the two optical interfaces are arranged correspondingly with the bent display parts of the two adjacent display screens, and the optical interface can make the light rays from the corresponding bent display part incident at a preset angle and exit along a first direction. The frame of the display screen is hidden at the back side of the display screen in a bent mode, so that the non-display area of the splicing part is eliminated. The light rays emitted by the bent display part exit along the first direction after being adjusted by the optical interface, so that the bent display part can also be used for displaying image information, the image information can be observed by an observer, and the problem of display area waste is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device and a display method. BACKGROUND

[0002] The manufacturing of large-size and ultra-large-size OLED display screens has great difficulty and challenge, therefore, at present, the large-size display screen is mainly formed by splicing to meet the display demand of large size. Since the AMOLED technology cannot completely eliminate the frame, the non-display area will appear at the splicing part of adjacent display screens.

[0003] In the related art, the display area of the display screen is bent by the bending technology, and then the display screen is spliced, so that the non-display area at the splicing part can be eliminated, but the bent display area has the problem of waste, resulting in poor economy. SUMMARY

[0004] Therefore, it is necessary to provide a display device and a display method, aiming at eliminating the non-display area at the splicing part and improving the problem of waste of the display area.

[0005] According to an aspect of the present application, a display device is provided, which comprises at least two display screens that can be spliced; the display screen comprises a planar display part and a bent display part connected with the planar display part, and a splicing gap is arranged between the bent display parts of two adjacent display screens; the display device further comprises an optical adjustment unit arranged in the splicing gap, the optical adjustment unit has two optical interfaces, the two optical interfaces are respectively arranged corresponding to the bent display parts of two adjacent display screens, and the optical interface can make the light incident at a preset angle from the corresponding bent display part exit along a first direction, the first direction being the light exit direction of the planar display part.

[0006] The display device in the embodiments of the present application, wherein the display screen comprises a planar display part and a bent display part connected with the planar display part, that is, the frame of the display screen is hidden at the back side of the display screen by means of bending, so that the frame does not appear at the splicing part of the display screen, thereby achieving the purpose of eliminating the non-display area at the splicing part. In addition, a splicing gap is arranged between the bent display parts of two adjacent display screens, and an optical adjustment unit is arranged in the splicing gap, two optical interfaces in the optical adjustment unit correspond to the bent display parts of the two adjacent display screens respectively, and the light emitted by the bent display part is emitted along the first direction after being adjusted by the optical interface, so that the light emitted by the bent display part can be received by an observer in front of the display device. In this way, the bent display part can also be used to display image information, and the image information can be seen by the observer. Therefore, the display area of the display screen can be effectively utilized to the greatest extent, thereby improving the problem of waste of the display area.

[0007] In some embodiments, the optical interface extends along the first direction and is arranged in a direction away from the corresponding bent display part.

[0008] In this way, the light emitted by the bent display part can be adjusted by the optical interface and then emitted along the first direction.

[0009] In some embodiments, the optical interface is at an angle with the corresponding bent display part, and the optical interface and the corresponding bent display part have a first distance, and the first distance gradually increases along the first direction.

[0010] In this way, the light emitted by the bent display part can be adjusted by the optical interface and then emitted along the first direction.

[0011] In some embodiments, the two optical interfaces intersect.

[0012] In this way, there is no gap between the two optical interfaces, so that the phenomenon of discontinuity of the display picture at the position of the optical adjustment unit can be avoided.

[0013] In some embodiments, the bent display part is perpendicular to the planar display part, and the angle between the optical interface and the corresponding bent display part is 45°.

[0014] In this way, the optical path system is relatively simple, and the optical path relationship is easy to grasp and control, thereby being beneficial to improving the optical path control precision and further being beneficial to improving the display effect of the display device.

[0015] In some embodiments, the optical adjustment unit comprises a first medium part and a second medium part connected with the first medium part, the first medium part is made of a first material, the second medium part is made of a second material, and an interface between the first medium part and the second medium part forms the optical interface, wherein the first material has a smaller refractive index than the second material.

[0016] In this way, the interface between the second medium part and the first medium part forms an optical interface capable of total reflection. Through the total reflection of the optical interface, the light emitted by the curved display part is reflected to propagate in the first direction.

[0017] In some embodiments, the first material and the second material are both transparent materials. In this way, when the refractive index of the first material is smaller than that of the second material and the incident angle is greater than the critical angle, total reflection can occur at the interface between the second medium part and the first medium part.

[0018] In some embodiments, the second medium part is arranged between the first medium part and the curved display part. In this way, the light emitted by the curved display part first passes through the second medium part and then reaches the interface between the second medium part and the first medium part, so that total reflection occurs at the interface.

[0019] In some embodiments, the first medium part is a triangular prism structure, the end face of the triangular prism structure is in the shape of an inverted triangle, the second medium part is in contact with two side faces of the triangular prism structure, and the two side faces form the optical interface respectively.

[0020] Since the first medium part is a triangular prism structure and the end face of the triangular prism structure is in the shape of an inverted triangle, the two side faces of the triangular prism structure in contact with the second medium part are intersected, which makes the two optical interfaces intersect, that is, there is no gap between the two optical interfaces, so that the phenomenon of discontinuous display picture at the position of the optical adjustment unit can be avoided.

[0021] In some embodiments, the optical interface is in the shape of a quadrilateral.

[0022] In this way, the area of the optical interface can be larger, so that each light emitted by the curved display part can be adjusted by the optical interface to be emitted in the first direction as much as possible, thereby improving the picture quality of the light emitted by the optical adjustment unit, and further improving the display effect of the display device.

[0023] In some embodiments, the optical interface is in the shape of a rectangle or a parallelogram.

[0024] In some embodiments, the optical adjustment unit comprises a support structure and two reflective layers arranged on the support structure, and surfaces of the two reflective layers are formed as the two optical interfaces respectively.

[0025] In this way, the optical interfaces with reflecting effect are formed by arranging the reflective layers on the support structure, and the light emitted by the display part is reflected by the surfaces of the reflective layers and propagates along the first direction.

[0026] In some embodiments, the reflective layers are metal reflective layers. The metal reflective layers have good reflecting effect, and the manufacturing process is simple and the cost is low.

[0027] In some embodiments, the support structure is a triangular prism structure, an end surface of the triangular prism structure is in the shape of an inverted triangle, and each reflective layer is arranged on a side surface of the triangular prism structure close to the corresponding display part.

[0028] In this way, the two optical interfaces intersect, and there is no gap between the two optical interfaces, so that the phenomenon of discontinuous display picture at the position of the optical adjustment unit can be avoided.

[0029] In some embodiments, the display device further comprises a cover plate and an optical adhesive layer, each display screen is located on the same side of the cover plate, and the flat display part and the optical adjustment unit are connected to the cover plate through the optical adhesive layer.

[0030] In this way, each display screen and the optical adjustment unit are fixed to the cover plate, on the one hand, the display screens and the optical adjustment unit can maintain a relatively fixed positional relationship, so that stable display performance can be maintained. On the other hand, the cover plate can prevent bumping, scratching, dust and water, thereby protecting the display screens and the optical adjustment unit. In this way, it is beneficial to stabilize the operation of the display device and prolong the service life of the display device.

[0031] Optionally, the display device further comprises an image acquisition module and a compensation module, the image acquisition module is configured to acquire a first image reflected by the optical adjustment unit, and the compensation module is configured to compensate driving data of the display part according to a display deviation between the first image and a preset image.

[0032] In this way, the first image reflected by the optical adjustment unit is acquired by the image acquisition module, and the driving data of the display part is compensated by the compensation module according to the display deviation between the first image and the preset image. In this way, the display deviation can be eliminated, and the picture presented by the light emitted by the optical adjustment unit is a normal picture, thereby being beneficial to improve the display effect of the display device.

[0033] According to another aspect of the present application, a display method is provided, which is implemented based on the display device in any of the above embodiments, and the display method comprises:

[0034] displaying a picture on the display screen;

[0035] capturing the picture presented by the optical adjustment unit by using an image capturing device to obtain a first image;

[0036] comparing the first image with a preset image, and compensating the driving data of the pixels in the bending display part according to the display deviation between the first image and the preset image.

[0037] The display device in the embodiments of the present application can not only eliminate the non-display area at the splicing part, but also make full use of the display area of the display screen to improve the problem of display area waste. However, it should be noted that the light emitted by the bending display part is adjusted by the optical adjustment unit to be emitted along the first direction, and there will be a display deviation between the picture generated after the adjustment and the original picture displayed by the bending display part. In the embodiments of the present application, the picture presented by the optical adjustment unit is captured when the display screen displays a picture, so as to obtain a first image, and then the first image is compared with a preset image, wherein the preset image is the image that should be displayed by the optical adjustment unit, and is also the image actually displayed by the bending display part at the moment of capturing. By comparing the first image with the preset image, the display deviation between the two can be obtained, and then the driving data of the pixels in the bending display part is compensated according to the display deviation. In this way, the display deviation can be eliminated, and the picture presented by the optical adjustment unit is a normal picture. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 FIG. 1 is a structural schematic diagram of a display device in the related art;

[0039] Figure 2 FIG. 2 is a structural schematic diagram of a display device in an embodiment of the present application;

[0040] Figure 3 FIG. 3 is a partial enlarged schematic diagram of the display device in the embodiment of the present application (the arrows in the figure represent light rays);

[0041] Figure 4 FIG. 4 is a schematic diagram of an optical adjustment unit in the embodiment of the present application;

[0042] Figure 5 FIG. 5 is a schematic diagram of an optical adjustment unit in another embodiment of the present application;

[0043] Figure 6 FIG. 6 is a flow schematic diagram of a display method in an embodiment of the present application.

[0044] The reference signs are as follows:

[0045] 10: display device;

[0046] 100: display screen;

[0047] 110: flat display portion; 120: bent display portion;

[0048] 200: optical adjustment unit; 201: optical interface; 210: first medium portion; 220: second medium portion; 230: support structure; 240: reflective layer;

[0049] 300: cover plate;

[0050] 400: optical adhesive layer. DETAILED DESCRIPTION

[0051] For the purposes of this application, reference will be made to the accompanying drawings in which the preferred embodiments of the application will be discussed. The drawings are intended for illustrative purposes and the application can be embodied in many different forms. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0053] In describing a position relationship, unless otherwise defined, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, when a layer is referred to as being "under" or "beneath" another layer, it can be directly under the other layer, or intervening elements can also be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers can also be present.

[0054] In the case of using "include", "have", and "contain" described herein, unless the explicit limiting term is used, such as "only", "consisting of", etc., another component can be added. Unless otherwise mentioned, the singular form of the term can include the plural form, and it cannot be understood as the number of one.

[0055] It should be understood that although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present application, a first element can be referred to as a second element, and similarly, a second element can be referred to as a first element.

[0056] It should also be understood that when interpreting elements, although not explicitly described, the elements are interpreted to include an error range that should be within an acceptable deviation range of a specific value determined by a person skilled in the art. For example, "about", "approximately" or "essentially" can mean within one or more standard deviations, without limitation.

[0057] In addition, in the specification, the phrase "plan view schematic diagram" refers to a figure when the target portion is viewed from above, and the phrase "cross-sectional schematic diagram" refers to a figure when a section is taken by cutting the target portion vertically and viewed from the side.

[0058] In addition, the drawings are not drawn to scale 1:1, and the relative sizes of the elements are only drawn by way of example in the drawings, and are not necessarily drawn to true scale.

[0059] The manufacture of large-size and ultra-large-size OLED display screens presents great difficulty and challenge, and therefore, at present, large-size display screens are mainly formed by splicing, so as to meet the display demand of large size. Since the AMOLED technology cannot completely eliminate the frame, a non-display area will appear at the splicing site of adjacent display screens.

[0060] Figure 1 is a structural schematic diagram of a display device 10' in the related art, as Figure 1 shown, the display device 10' includes a plurality of splicable display screens 100'. For each display screen 100', the display area of the display screen 100' is bent by a bending technology, and then the display screen 100' is spliced, so that the non-display area at the splicing site can be eliminated. However, the bent display area has a waste problem, resulting in poor economy.

[0061] In view of the above problems, the embodiments of the first aspect of the present application propose a display device, which aims to eliminate the non-display area at the splicing site and improve the problem of display area waste.

[0062] As Figure 2 , Figure 3As shown, the display device 10 in the first aspect embodiment of this application includes at least two splicable displays 100. Each display 100 includes a flat display section 110 and a curved display section 120 connected to the flat display section 110. A splicing gap is provided between the curved display sections 120 of two adjacent displays 100. The display device 10 also includes an optical adjustment unit 200 disposed in the splicing gap. The optical adjustment unit 200 has two optical interfaces 201, which are respectively disposed corresponding to the curved display sections 120 of the two adjacent displays 100. The optical interfaces 201 enable light rays incident at a preset angle from the corresponding curved display section 120 to exit along a first direction, where the first direction is the light emission direction of the flat display section 110.

[0063] Specifically, the display screen 100 can be an OLED display screen, that is, the light-emitting unit in the display screen 100 is an OLED (Organic Light-Emitting Diode) light-emitting device. OLED displays have the advantage of flexible display, and can be bent to form a bent display section 120.

[0064] It is understandable that the first direction is perpendicular to the flat panel display unit 110 and points towards the light emission direction of the flat panel display unit 110.

[0065] The display device 10 in this embodiment includes a display screen 100 comprising a flat display section 110 and a bent display section 120 connected to the flat display section 110. In other words, by bending, the bezel of the display screen 100 is hidden on the back side of the display screen 100, thus eliminating the non-display area at the splicing point of the display screens 100. Furthermore, a splicing gap is provided between the bent display sections 120 of two adjacent display screens 100, and an optical adjustment unit 200 is provided in the splicing gap. Two optical interfaces 201 in the optical adjustment unit 200 correspond to the bent display sections 120 of the two adjacent display screens 100, respectively. Light emitted from the bent display section 120 is adjusted by the optical interfaces 201 and emitted along a first direction, allowing the light emitted from the bent display section 120 to be received by an observer in front of the display device 10. Thus, the bent display section 120 can also be used to display image information, and this image information can be seen by the observer. Therefore, the display area of ​​the display screen 100 can be used to the maximum extent, thereby improving the problem of wasted display area.

[0066] like Figure 3 As shown, in some embodiments, the optical interface 201 extends along a first direction and is inclined in a direction away from the corresponding bent display portion 120.

[0067] In this way, the light emitted by the bending display part 120 can be conveniently adjusted by the optical interface 201 and then emitted along the first direction.

[0068] As shown in FIG. 1, in some embodiments, the optical interface 201 is at an angle with the corresponding bending display part 120, and the optical interface 201 and the corresponding bending display part 120 have a first distance therebetween, which gradually increases along the first direction. Figure 3 In this way, the light emitted by the bending display part 120 can be conveniently adjusted by the optical interface 201 and then emitted along the first direction.

[0069] As shown in FIG. 1, in some embodiments, the two optical interfaces 201 intersect.

[0070] Figure 3 In this way, there is no gap between the two optical interfaces 201, so that the phenomenon of discontinuous display picture at the position of the optical adjustment unit can be avoided.

[0071] As shown in FIG. 1, in some embodiments, the bending display part 120 is perpendicular to the flat display part 110, and the angle between the optical interface 201 and the corresponding bending display part 120 is 45°.

[0072] In this way, the light emitted by the bending display part 120 along the normal direction thereof is incident on the optical interface 201 at an angle of 45°, is reflected at the optical interface 201, and the reflection angle is also 45°. In this way, the optical path system is relatively simple, and the optical path relationship is easy to grasp and control, thereby facilitating the improvement of the optical path control precision, and further facilitating the improvement of the display effect of the display device 10. Figure 2 Figure 3 As shown in FIG. 1, in some embodiments, the optical adjustment unit 200 includes a first medium part 210 and a second medium part 220 connected with the first medium part 210, the first medium part 210 is made of a first material, the second medium part 220 is made of a second material, and the interface between the first medium part 210 and the second medium part 220 forms the optical interface 201. The refractive index of the first material is less than the refractive index of the second material.

[0073] In this way, the light emitted by the bending display part 120 along the normal direction thereof is incident on the optical interface 201 at an angle of 45°, is reflected at the optical interface 201, and the reflection angle is also 45°. In this way, the optical path system is relatively simple, and the optical path relationship is easy to grasp and control, thereby facilitating the improvement of the optical path control precision, and further facilitating the improvement of the display effect of the display device 10.

[0074] As shown in FIG. 1, in some embodiments, the optical adjustment unit 200 includes a first medium part 210 and a second medium part 220 connected with the first medium part 210, the first medium part 210 is made of a first material, the second medium part 220 is made of a second material, and the interface between the first medium part 210 and the second medium part 220 forms the optical interface 201. The refractive index of the first material is less than the refractive index of the second material. Figure 3 Figure 4 As shown in FIG. 1, in some embodiments, the optical adjustment unit 200 includes a first medium part 210 and a second medium part 220 connected with the first medium part 210, the first medium part 210 is made of a first material, the second medium part 220 is made of a second material, and the interface between the first medium part 210 and the second medium part 220 forms the optical interface 201. The refractive index of the first material is less than the refractive index of the second material.

[0075] ​​​According to the principle of total internal reflection, when light enters a medium with a lower refractive index from a medium with a higher refractive index, if the angle of incidence is greater than a certain critical angle, the refracted light will disappear, and all incident light will be reflected and will not enter the medium with the lower refractive index. Therefore, in this embodiment, the first medium portion 210 is made of a first material with a lower refractive index, and the second medium portion 220 is made of a second material with a higher refractive index. This creates an optical interface 201 at the interface between the second medium portion 220 and the first medium portion 210, which is capable of total internal reflection. Through the total internal reflection of this optical interface 201, the light emitted from the bent display portion 120 is reflected back to propagate along the first direction.

[0076] Furthermore, both the first material and the second material are transparent materials, allowing light to propagate in the first medium section 210 and the second medium section 220. Thus, when the refractive index of the first material is less than that of the second material and the angle of incidence is greater than the critical angle, total internal reflection can occur at the interface between the second medium section 220 and the first medium section 210.

[0077] In some embodiments, such as Figure 3 , Figure 4 As shown, a second medium section 220 is disposed between the first medium section 210 and the bent display section 120. In this way, the light emitted from the bent display section 120 first passes through the second medium section 220 and then reaches the interface between the second medium section 220 and the first medium section 210, thereby causing total internal reflection at the interface.

[0078] In some embodiments, such as Figure 4 As shown, the first dielectric part 210 is a triangular prism structure with an inverted triangular end face. The second dielectric part 220 contacts two sides of the triangular prism structure, and each side forms an optical interface 201. Since the first dielectric part 210 is a triangular pyramid structure with an inverted triangular end face, the two sides of the triangular prism structure that contact the second dielectric part 220 intersect, causing the two optical interfaces 201 to intersect. In other words, there is no gap between the two optical interfaces 201, which avoids the phenomenon of discontinuous display at the location of the optical adjustment unit 200.

[0079] In some embodiments, the optical interface 201 is quadrilateral. Further, the optical interface is rectangular or parallelogram-shaped.

[0080] In this way, the area of ​​the optical interface 201 can be larger, so that each light emitted from the bent display section 120 can be adjusted by the optical interface 201 to be emitted along the first direction as much as possible, thereby improving the image quality presented by the light emitted by the optical adjustment unit 200, and thus improving the display effect of the display device 10.

[0081] In some embodiments, as shown in Figure 5 The optical adjustment unit 200 includes a support structure 230 and two reflective layers 240 arranged on the support structure 230, and surfaces of the two reflective layers 240 are formed as two optical interfaces 201.

[0082] In this embodiment, the optical interface 201 with reflection is configured by arranging the reflective layer 204 on the support structure 230, and the light emitted by the bending display part 120 is reflected by the surface of the reflective layer 240 and propagates in the first direction.

[0083] Further, the reflective layer 240 is a metal reflective layer. It has good reflection effect, and the manufacturing process is simple and the cost is low.

[0084] Further, the support structure 230 is a triangular prism structure, and the end face of the triangular prism structure is an inverted triangle; each reflective layer 240 is arranged on the side of the triangular prism structure close to the corresponding bending display part 120. In this way, the two optical interfaces 201 intersect, so that there is no gap between the two optical interfaces 201, thereby avoiding the phenomenon of discontinuous display picture at the position of the optical adjustment unit 200.

[0085] As shown in Figure 2 In some embodiments, the display device 10 further includes a cover plate 300 and an optical adhesive layer 400, and each display screen 100 is located on the same side of the cover plate 300, and the flat display part 110 and the optical adjustment unit 200 are connected to the cover plate 300 through the optical adhesive layer 400.

[0086] In this way, each display screen 100 and the optical adjustment unit 200 are fixed to the cover plate 300, on the one hand, so that each display screen 100 and the optical adjustment unit 200 can maintain a relatively fixed positional relationship, thereby maintaining stable display performance. On the other hand, the cover plate 300 can prevent bumping, scratching, dust, and water, thereby protecting each display screen 100 and the optical adjustment unit 200, which is conducive to stable operation of the display device 10 and prolonging the service life of the display device 10.

[0087] In some embodiments, the display device 10 further includes an image acquisition module (not shown in the figure) and a compensation module (not shown in the figure), the image acquisition module is used to acquire the first image reflected by the optical adjustment unit 200; and the compensation module is used to compensate the driving data of the bending display part 120 according to the display deviation between the first image and a preset image.

[0088] Thus, the first image reflected by the optical adjustment unit 200 is acquired by the image acquisition module, and the driving data of the bending display part 120 is compensated according to the display deviation between the first image and the preset image, so that the display deviation is eliminated, the picture presented by the light emitted after being adjusted by the optical adjustment unit 200 is a normal picture, and the display effect of the display device 10 is improved.

[0089] As shown in Figure 6 The embodiment of the second aspect of the present application provides a display method, which is implemented based on the display device 10 in any of the above-mentioned embodiments of the first aspect, and the display method comprises the following steps:

[0090] In step S100, the display screen 100 displays a picture.

[0091] In step S200, the picture presented by the optical adjustment unit 200 is photographed by the image acquisition device to obtain a first image.

[0092] In step S300, the first image is compared with a preset image, and the driving data of the pixels in the bending display part 120 is compensated according to the display deviation between the first image and the preset image.

[0093] The display device 10 in the embodiment of the present application can not only eliminate the non-display area of the splicing part, but also make full use of the display area of the display screen 100 to improve the problem of display area waste. However, it cannot be ignored that the light emitted by the bending display part 120 is adjusted by the optical adjustment unit 200 and then emitted along the first direction, and there will be a display deviation between the picture generated after the adjustment and the original picture displayed by the bending display part 120. For example, when the optical interface 201 is a total reflection interface or a reflection interface, the picture after the adjustment has a mirror image relationship with the original picture displayed by the bending display part 120. Therefore, the picture after the adjustment needs to be processed to eliminate the display deviation.

[0094] To achieve the above-mentioned purpose, in the embodiment of the present application, the picture presented by the optical adjustment unit 200 is photographed when the display screen 100 displays a picture, so that a first image is obtained, and then the first image is compared with a preset image, wherein the preset image is the image that should be displayed at the optical adjustment unit 200, and is also the image actually displayed by the bending display part 120 at the photographing moment. By comparing the first image with the preset image, the display deviation between the two can be known, and then the driving data of the pixels in the bending display part 120 is compensated according to the display deviation. For example, the bending display part 120 can be made to present a mirror image display effect (the image actually displayed by the bending display part 120 is a mirror image of the image that should be displayed) by compensating the driving data of the pixels, so that the display deviation is eliminated, and the picture presented by the optical adjustment unit 200 is a normal picture.

[0095] It can be understood that the partial distortion of the image can also be corrected by driving the pixels in the bending display unit 120 according to the driving data compensation after comparing the first image with the preset image.

[0096] Specifically, the process of driving data compensation can apply the commonly used Demura compensation method, which is the existing method, and will not be described here.

[0097] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0098] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. A display device, characterized by comprising: The display device comprises at least two display screens which can be spliced; The display screen comprises a flat display part and a bent display part connected with the flat display part, and a splicing gap is arranged between the bent display parts of two adjacent display screens; The display device further comprises an optical adjustment unit arranged in the splicing gap, the optical adjustment unit has two optical interfaces, the two optical interfaces are arranged corresponding to the bent display parts of two adjacent display screens respectively, and the optical interface can make the light incident at a preset angle from the corresponding bent display part exit along a first direction, the first direction being the light exit direction of the flat display part; The optical adjustment unit comprises a first medium part and a second medium part connected with the first medium part, the first medium part is made of a first material, the second medium part is made of a second material, the interface between the first medium part and the second medium part forms the optical interface, and the refractive index of the first material is smaller than that of the second material; or The optical adjustment unit comprises a support structure and two reflective layers arranged on the support structure, the surfaces of the two reflective layers are formed into the two optical interfaces.

2. The display device according to claim 1, wherein The optical interface extends along the first direction and is arranged in a direction away from the corresponding bent display part.

3. The display device according to claim 2, wherein The optical interface forms an angle with the corresponding bent display part, and the optical interface and the corresponding bent display part have a first distance, the first distance gradually increases along the first direction.

4. The display device according to claim 2, wherein The two optical interfaces intersect.

5. The display device according to claim 2, wherein The bent display part is perpendicular to the flat display part, and the angle between the optical interface and the corresponding bent display part is 45°.

6. The display device according to claim 1, wherein The first material and the second material are both transparent materials.

7. The display device according to claim 1, wherein The second medium part is arranged between the first medium part and the bent display part.

8. The display device according to claim 1, wherein The first medium part is a triangular prism structure, the end face of the triangular prism structure is in the shape of an inverted triangle, the second medium part contacts two side faces of the triangular prism structure, and the two side faces are formed into the optical interfaces.

9. The display device of claim 8, wherein, The optical interface is in the shape of a quadrilateral.

10. The display device according to claim 8, wherein The optical interface is in the shape of a rectangle or a parallelogram.

11. The display device according to claim 1, wherein The reflective layer is a metal reflective layer.

12. The display device according to claim 1, wherein The support structure is a triangular prism structure, the end face of the triangular prism structure is in the shape of an inverted triangle, and each reflective layer is arranged on the side face of the triangular prism structure close to the corresponding bent display part.

13. The display device of claim 1, wherein, The display device further comprises a cover plate and an optical adhesive layer, each display screen is located on the same side of the cover plate, and the flat display part and the optical adjustment unit are connected with the cover plate through the optical adhesive layer.

14. The display device of claim 1, wherein The display device further comprises an image acquisition module and a supplement module, the image acquisition module is used to acquire a first image reflected by the optical adjustment unit, and the supplement module is used to compensate the driving data of the bent display part according to the display deviation between the first image and a preset image.

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