Display panel and display device

Abstract

A display panel and a display device. The display panel has a non-defocus display state and a defocus display state. In the non-defocus display state, sub-pixels (21) each emit light having a positive focus wavelength of a corresponding primary color; and in the defocus display state, the sub-pixels (21) each emit light having a positive defocus wavelength of the corresponding primary color, the positive focus wavelength being greater than the positive defocus wavelength of the corresponding primary color. The display panel solves the problem of poor applicability of a display device.

Description

Display panel and display device

[0001] The present application claims priority from the Chinese patent application No. 2024113792888, filed on September 29, 2024, and entitled "Display panel and display device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application belongs to the technical field of display devices, and in particular relates to a display panel and a display device. BACKGROUND

[0003] With the increasing number of myopic population in China, eye protection technology has become one of the research and development hotspots in the display industry. One eye protection solution is to set a defocus mirror on the light entering side of the eyeball, so that the light passing through the central area of the defocus mirror is normally imaged on the retina, and the light passing through the defocus mirror after refraction is imaged in front of the retina, forming myopic defocus. After the retina perceives the defocus blur, it can inhibit the elongation of the eye axis, thereby achieving the effect of slowing down myopia.

[0004] In related technologies, a defocus display device can emit light of a positive defocus wavelength, thereby forming a defocus surface in the human eye. However, the display device in related technologies can only meet the needs of users who need to watch the defocus picture, and the applicability is poor.

[0005] Therefore, it is necessary to improve the prior art.

[0006] The above information is given as background information only to assist with an understanding of the present disclosure. No admission is made nor should it be inferred that any of the above information can serve as prior art with respect to the present disclosure. TECHNICAL PROBLEM

[0007] The display panel and display device provided by the embodiments of the present application can solve the problem that the display device can only meet the needs of users who need to watch the defocus picture, and the applicability is poor. TECHNICAL SOLUTION

[0008] In a first aspect, the embodiments of the present application provide a display panel, comprising a panel body, the panel body having a plurality of pixel units, the pixel units comprising a plurality of sub-pixels, the plurality of sub-pixels comprising red sub-pixels, green sub-pixels and blue sub-pixels;

[0009] The display panel has a non-afocal display state and an afocal display state, when the display panel is in the non-afocal display state, the red sub-pixel, the green sub-pixel and the blue sub-pixel respectively emit light of the positive focal length of the corresponding primary color, so that the light emitted by the display panel is imaged on the retina of the viewer; when the display panel is in the afocal display state, the red sub-pixel, the green sub-pixel and the blue sub-pixel respectively emit light of the positive afocal length of the corresponding primary color, so that the light emitted by the display panel is imaged in front of the retina of the viewer, the positive focal length is greater than the positive afocal length of the corresponding primary color.

[0010] In a possible implementation, the sub-pixel includes at least one group of secondary sub-pixels, each group of the secondary sub-pixels includes a positive afocal secondary sub-pixel and a negative afocal secondary sub-pixel, the positive afocal secondary sub-pixel is used to emit light of the positive afocal length of the corresponding primary color, and the negative afocal secondary sub-pixel emits light of the negative afocal length of the corresponding primary color, the negative afocal length is greater than the positive afocal length of the corresponding primary color.

[0011] When the display panel is in the non-afocal display state, the positive afocal secondary sub-pixel and the negative afocal secondary sub-pixel emit light at the same time, and the sub-pixel emits light equivalent to the positive focal length of the corresponding primary color; when the display panel is in the afocal display state, the positive afocal secondary sub-pixel emits light, and the negative afocal secondary sub-pixel is turned off, and the sub-pixel emits light of the positive afocal length of the corresponding primary color.

[0012] In a possible implementation, the red sub-pixel includes a red positive afocal secondary sub-pixel and a red negative afocal secondary sub-pixel, the green sub-pixel includes a green positive afocal secondary sub-pixel and a green negative afocal secondary sub-pixel, and the blue sub-pixel includes a blue positive afocal secondary sub-pixel and a blue negative afocal secondary sub-pixel.

[0013] When the display panel is in the non-afocal display state, the red positive afocal secondary sub-pixel and the red negative afocal secondary sub-pixel emit light at the same time and are equivalent to red positive focal length light, the green positive afocal secondary sub-pixel and the green negative afocal secondary sub-pixel emit light at the same time and are equivalent to green positive focal length light, and the blue positive afocal secondary sub-pixel and the blue negative afocal secondary sub-pixel emit light at the same time and are equivalent to blue positive focal length light.

[0014] In a possible implementation, the sub-pixel further includes a positive focal length secondary sub-pixel, and the positive focal length secondary sub-pixel is used to directly emit light of the positive focal length of the corresponding primary color.

[0015] When the display panel is in the non-afocal display state, the positive focal length secondary sub-pixel emits light; when the display panel is in the afocal display state, the positive focal length secondary sub-pixel is turned off.

[0016] In a possible implementation, the sub-pixel comprises at least one group of secondary sub-pixels, each group of the secondary sub-pixels comprising a positive defocus secondary sub-pixel and a positive focus secondary sub-pixel, the positive defocus secondary sub-pixel being configured to emit light of a corresponding positive defocus wavelength, and the positive focus secondary sub-pixel being configured to directly emit light of a corresponding standard emission wavelength.

[0017] In the non-defocus display state of the display panel, the positive focus secondary sub-pixel emits light, and the positive defocus secondary sub-pixel is turned off; and in the defocus display state of the display panel, the positive focus secondary sub-pixel is turned off, and the positive defocus secondary sub-pixel emits light.

[0018] In a possible implementation, the sub-pixel comprises a plurality of groups of secondary sub-pixels, each group of the secondary sub-pixels comprising a positive defocus secondary sub-pixel and a negative defocus secondary sub-pixel, a plurality of the positive defocus secondary sub-pixels being configured to emit light of a positive defocus wavelength corresponding to a primary color respectively, and a plurality of the negative defocus secondary sub-pixels being configured to emit light of a negative defocus wavelength corresponding to the primary color respectively, each of the positive defocus secondary sub-pixel and the negative defocus secondary sub-pixel being independently controllable.

[0019] In the non-defocus display state of the display panel, the positive defocus secondary sub-pixel and the negative defocus secondary sub-pixel of at least one group of secondary sub-pixels emit light simultaneously, and the sub-pixel emits light of a positive focus wavelength equivalent to a corresponding primary color; and in the defocus display state of the display panel, the positive defocus secondary sub-pixel of one group of secondary sub-pixels emits light, and the negative defocus secondary sub-pixel is turned off, and the sub-pixel emits light of a positive defocus wavelength corresponding to the primary color.

[0020] In a possible implementation, the sub-pixel further comprises a positive focus secondary sub-pixel, the positive focus secondary sub-pixel being configured to directly emit light of a corresponding standard emission wavelength.

[0021] In a possible implementation, the display panel further comprises a control unit, the control unit being configured to control the turning on and turning off of the positive focus secondary sub-pixel and the positive defocus secondary sub-pixel.

[0022] In a possible implementation, the panel body has a plurality of display regions arranged in sequence from the center to the periphery, and a variation trend of the positive defocus wavelength of the same primary color increases in sequence from the center to the periphery according to the positions of the display regions.

[0023] In a second aspect, the embodiments of the present application further provide a display device, which comprises the display panel as described above. Advantages

[0024] The embodiment of the present application provides a display panel, by making the display panel have a non-defocus display state and a defocus display state, when a user needs to watch a non-defocus picture, sub-pixels on the display panel respectively emit light of a positive focus wavelength corresponding to an original color, so that the light emitted by the display panel is imaged on the retina of a viewer; when the user needs to watch a non-defocus picture, sub-pixels on the display panel respectively emit light of a positive defocus wavelength corresponding to an original color, so that the light emitted by the display panel is imaged in front of the retina of the viewer; the display panel simultaneously meets the user watching a non-defocus picture and the user watching a defocus picture, has high applicability, and solves the problem of poor applicability that the display device can only meet the needs of the user watching a defocus picture. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Fig. 1 is a partitioning schematic diagram of a display area of a panel body provided by the embodiment one of the present application.

[0027] Fig. 2 is a wavelength diagram of a pixel unit of the display area A1 provided by the embodiment one of the present application.

[0028] Fig. 3 is a wavelength diagram of a pixel unit of the display area A n provided by the embodiment one of the present application.

[0029] Fig. 4 is an optical imaging schematic diagram of a display device in an eye structure provided by the embodiment one of the present application.

[0030] Fig. 5 is a partitioning schematic diagram of a display area of a panel body provided by the embodiment two of the present application.

[0031] Fig. 6 is a wavelength diagram of a pixel unit of the display area A1 provided by the embodiment two of the present application.

[0032] Fig. 7 is a partitioning schematic diagram of a display area of a panel body provided by the embodiment three of the present application.

[0033] Fig. 8 is a wavelength diagram of a pixel unit of the display area A n provided by the embodiment three of the present application.

[0034] Fig. 9 is a partitioning schematic diagram of a display area of a panel body provided by the embodiment four of the present application.

[0035] Fig. 10 is a wavelength diagram of a pixel unit of the display area A1 provided by the embodiment four of the present application.

[0036] FIG. 11 is a structural schematic diagram of a pixel unit provided in an embodiment of the present application.

[0037] In the figure: 1, panel body; 2, pixel unit; 21, sub-pixel; 211, positive defocus sub-sub-pixel; 212, negative defocus sub-sub-pixel; 213, positive focus sub-sub-pixel. Embodiments of the present application

[0038] To describe possible application scenarios, technical principles, specific schemes that can be implemented, purposes and effects that can be achieved of the present application in detail, the following specific embodiments are combined with the accompanying drawings to be described in detail. The embodiments described in this paper are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0039] In the description of the present application, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features.

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the accompanying drawings in the embodiments of the present application.

[0041] The display panel and display device provided in the embodiments of the present application are provided to solve the problem that the display device can only meet the needs of users who need to watch defocus pictures, and the applicability is poor. The following will be described in combination with the accompanying drawings.

[0042] Embodiment 1

[0043] Please refer to FIG. 1, the present application provides a display panel, comprising a panel body 1, the panel body 1 has a plurality of pixel units 2, the pixel unit 2 includes a plurality of sub-pixels 21, the plurality of sub-pixels 21 includes red sub-pixel, green sub-pixel and blue sub-pixel;

[0044] The display panel has a non-defocus display state and a defocus display state, when the display panel is in the non-defocus display state, the red sub-pixel, green sub-pixel and blue sub-pixel respectively emit light of positive focus wavelength corresponding to the original color, so that the light emitted by the display panel is imaged on the retina of the viewer; when the display panel is in the defocus display state, the red sub-pixel, green sub-pixel and blue sub-pixel respectively emit light of positive defocus wavelength corresponding to the original color, so that the light emitted by the display panel is imaged in front of the retina of the viewer, the positive focus wavelength is greater than the positive defocus wavelength corresponding to the original color.

[0045] By making the display panel have a non-axial display state and an axial display state, when a user needs to watch a non-axial picture, the sub-pixels on the display panel respectively emit light of the positive focus wavelength corresponding to the original color, so that the light emitted by the display panel is imaged on the retina of the viewer; when a user needs to watch a non-axial picture, the sub-pixels on the display panel respectively emit light of the positive axial wavelength corresponding to the original color, so that the light emitted by the display panel is imaged in front of the viewer's retina; the display panel simultaneously meets the user watching the non-axial picture and the user watching the axial picture, has high applicability, and solves the problem that the display device can only meet the needs of the user watching the axial picture and has poor applicability.

[0046] Please refer to FIG. 1, in the embodiment, the panel body 1 is arranged in a rectangular shape, the central display area is arranged in a rectangular shape, and the outer display area is arranged in a rectangular ring concentric with the central display area. In some embodiments of the present application, the central display area is arranged in a circular shape, and the outer display area is arranged in a circular ring concentric with the central display area. The display areas are sequentially named A1, A2,..., A n The difference between the positive focus wavelength of the sub-pixel and the positive axial wavelength corresponding to the original color is the deviation wavelength, and the deviation wavelength increases sequentially from the center to the periphery according to the position of the display area, and the deviation wavelengths of all sub-pixels in the same area are the same.

[0047] By arranging a plurality of display areas with different sizes from the inside to the outside on the panel body 1, and arranging the deviation wavelengths of the display areas to increase sequentially from the center to the periphery, when a user watches the display panel, the light emitted by the central display area of the display panel is normally imaged on the retina, and the light emitted by the peripheral display area of the display panel is imaged in front of the retina, so that the retina perceives axial blur, thereby achieving the effect of slowing down myopia.

[0048] Specifically, when the display panel is in a non-axial display state, the red sub-pixel emits light R λ of the red positive focus wavelength, the green sub-pixel emits light G λ of the red positive focus wavelength, and the blue sub-pixel emits light B λ of the red positive focus wavelength. In the embodiment, R λ = 625 nm, G λ = 525 nm, and B λ = 465 nm. When the display panel is in an axial display state, the red sub-pixel in the display area A1 emits light R λ-1 of the positive axial wavelength, the deviation wavelength λ1 of the display area A1 is R λ -R λ-1 , the green sub-pixel in the display area A2 emits light G λ-2 of the positive axial wavelength, and the deviation wavelength λ2 of the display area A2 is G λ-G λ-2 , the display region A n emits light of the positive defocus wavelength B λ-n , the display region A1 emits light of the positive defocus wavelength B n λ -B λ-n , and λ1<λ2<…<λ n .

[0049] In the embodiment, the sub-pixel 21 includes a group of sub-sub-pixels, the group of sub-sub-pixels includes a positive defocus sub-sub-pixel 211 and a negative defocus sub-sub-pixel 212, the positive defocus sub-sub-pixel 211 is used to emit light of a positive defocus wavelength corresponding to a primary color, the negative defocus sub-sub-pixel 212 emits light of a negative defocus wavelength corresponding to the primary color, and the negative defocus emission wavelength is the sum of the positive focus wavelength of the sub-pixel 21 and the deviation wavelength of the display region where the sub-pixel 21 is located.

[0050] Referring to FIGS. 1-3, specifically, the red sub-pixel includes a red positive defocus sub-sub-pixel and a red negative defocus sub-sub-pixel, the green sub-pixel includes a green positive defocus sub-sub-pixel and a green negative defocus sub-sub-pixel, and the blue sub-pixel includes a blue positive defocus sub-sub-pixel and a blue negative defocus sub-sub-pixel. The red positive defocus sub-sub-pixel in the display region A1 emits light of the positive defocus wavelength r λ-1 , the display region A1 emits light of the positive defocus wavelength r λ-1 = R λ - λ1, the red negative defocus sub-sub-pixel in the display region A1 emits light of the positive defocus wavelength r λ+1 , the display region A1 emits light of the positive defocus wavelength r λ+1 = R λ + λ1; the green positive defocus sub-sub-pixel in the display region A2 emits light of the positive defocus wavelength g λ-2 , the display region A2 emits light of the positive defocus wavelength g λ-2 = G λ - λ2, the green negative defocus sub-sub-pixel in the display region A2 emits light of the negative defocus emission wavelength g λ+2 , the display region A2 emits light of the negative defocus emission wavelength g λ+2 = G λ + λ2; the blue positive defocus sub-sub-pixel in the display region A n emits light of the positive defocus wavelength b λ-n , the display region A emits light of the positive defocus wavelength b λ-n = B λ - λ n , the blue negative defocus sub-sub-pixel in the display region A n emits light of the negative defocus emission wavelength b λ+n , the display region A emits light of the negative defocus emission wavelength b λ+n = B λ + λ n .

[0051] ​Please refer to FIG. 1-3, the display panel further comprises a control unit, when the display panel is in the non-defocus display state, the red positive defocus sub-pixel and the red negative defocus sub-pixel are controlled to emit light simultaneously and equivalent to the red positive focus wavelength by the control unit, the green positive defocus sub-pixel and the green negative defocus sub-pixel are controlled to emit light simultaneously and equivalent to the green positive focus wavelength by the control unit, the blue positive defocus sub-pixel and the blue negative defocus sub-pixel are controlled to emit light simultaneously and equivalent to the blue positive focus wavelength by the control unit, so that the display panel can display a normal picture. When the display panel is in the defocus display state, the red negative defocus sub-pixel, the green negative defocus sub-pixel and the blue negative defocus sub-pixel are controlled to be turned off by the control unit, and the red positive defocus sub-pixel, the green positive defocus sub-pixel and the blue positive defocus sub-pixel still remain turned on, so that the display panel displays a defocus picture.

[0052] It should be noted that in the embodiment, the step value D of the deviated wavelength of any adjacent display area is the same, that is, D = λ2- λ1= λ3- λ2= … = λ n -λ n-1 , and 1nm≤D≤10nm, in some embodiments of the present application, the value of the step value D can be selected as any one of 1nm, 2nm, 3nm, 4nm, 5nm, 6nm, 7nm, 8nm, 9nm, 10nm, and each step value corresponds to a display panel with a defocus degree, thereby meeting the use requirements of different users.

[0053] Please refer to FIG. 11, in the embodiment, the shapes of the three sub-pixels are rectangular, in some embodiments of the present application, the shape of the sub-pixel is any one of square, circle, ellipse, triangle, diamond, and the shapes of the three sub-pixels in the same pixel unit are different.

[0054] Please refer to FIG. 4, when the display panel is in the defocus display state, the light emitted by the center display area (A1) can be directly imaged on the retina, and the light emitted by the peripheral display area (A2 … A n ) will be deflected by a larger angle when refracted through the eyeball structure compared with the light at the positive focus wavelength, so that the light generated by the pixel unit 2 is focused in front of the retina, forming myopia defocus, and the retina can inhibit the elongation of the eye axis after perceiving the defocus blur, thereby achieving the effect of slowing down myopia.

[0055] The present application also provides a display device comprising the display panel as described above. Since the display device has the display panel as described above, it at least has part or all of the beneficial effects of the display panel, which will not be repeated here.

[0056] Embodiment 2:

[0057] Please refer to FIG. 5, the difference between the embodiment and the embodiment 2 is that the sub-pixels are different, in the embodiment, the sub-pixels further include a positive focus sub-pixel 213, the positive focus sub-pixel 213 is used for directly emitting light of a positive focus wavelength corresponding to an original color.

[0058] Please refer to FIG. 5 and FIG. 6, specifically, the red sub-pixel includes a red positive focus sub-pixel, the red positive focus sub-pixel is used for emitting light of a red positive focus wavelength R λ , the green sub-pixel includes a green positive focus sub-pixel, the green positive focus sub-pixel is used for emitting light of a green positive focus wavelength G λ , and the blue sub-pixel includes a blue positive focus sub-pixel, the blue positive focus sub-pixel is used for emitting light of a blue positive focus wavelength B λ .

[0059] When the display panel is in the non-afocal display state, the control unit controls the positive focus sub-pixel, the positive afocal sub-pixel and the negative afocal sub-pixel of each sub-pixel to be all turned on. When the display panel is in the afocal display state, the control unit controls the positive focus sub-pixel and the negative afocal sub-pixel of each sub-pixel to be turned off, and the positive afocal sub-pixel remains turned on.

[0060] By setting the positive focus sub-pixel 213 and enabling the positive focus sub-pixel 213 to emit light of a positive focus wavelength corresponding to an original color, the picture brightness when the display panel displays a normal picture is improved, and the display effect of the display panel is enhanced.

[0061] Embodiment 3:

[0062] Please refer to FIG. 7 and FIG. 8, the difference between the embodiment and the embodiment 1 is that the sub-pixels are different, in the embodiment, the sub-pixel 21 includes a group of sub-pixels, each group of sub-pixels includes a positive afocal sub-pixel 211 and a positive focus sub-pixel 213, the positive afocal sub-pixel 211 is used for emitting light of a positive afocal wavelength, and the positive focus sub-pixel 213 is used for directly emitting light of a positive focus wavelength corresponding to an original color.

[0063] When the display panel is in the non-afocal display state, the control unit controls the positive afocal sub-pixel of each sub-pixel to be turned off and controls the positive focus sub-pixel to be turned on. When the display panel is in the afocal display state, the control unit controls the positive afocal sub-pixel of each sub-pixel to be turned on and controls the positive focus sub-pixel to be turned off.

[0064] By enabling the sub-pixel to include the positive afocal sub-pixel 211 and the positive focus sub-pixel 213 and by the control unit controlling the turning on and turning off of the positive afocal sub-pixel 211 and the positive focus sub-pixel 213, the damage of the positive afocal sub-pixel 211 caused by the long-term turning on of the positive afocal sub-pixel 211 can be reduced, thereby avoiding affecting the display effect of the display panel in the afocal mode.

[0065] Example 4:

[0066] Please refer to Figures 9 and 10. The difference between this embodiment and Embodiment 1 lies in the sub-pixels. In this embodiment, the sub-pixels include multiple groups of secondary sub-pixels, which are sequentially named SP1, SP2...SP N Each group of sub-pixels includes a positive defocus sub-pixel 211 and a negative defocus sub-pixel 212. Multiple positive defocus sub-pixels 211 are used to emit light of a positive defocus wavelength corresponding to a primary color, and multiple negative defocus sub-pixels 212 are used to emit light of a negative defocus wavelength corresponding to a primary color. Each positive defocus sub-pixel 211 and negative defocus sub-pixel 212 can be turned on and off independently.

[0067] Each group of secondary sub-pixels has an offset wavelength. The offset wavelengths of positive defocus secondary sub-pixels 211 and negative defocus secondary sub-pixels 212 in the same group are the same. Specifically, the red positive defocus secondary sub-pixels of the secondary sub-pixel group SP1 in the display area A1 emit a positive defocus wavelength r. λ-1-SP1 The light emitted by the corresponding red negative defocus sub-pixel has a negative defocus wavelength r. λ+1+SP1 The light, the offset wavelength λ of the secondary sub-pixel group SP1 within the display area A1. SP1 =R λ -λ1-r λ-1-SP1 =r λ+1+SP1 -R λ -λ1; The green positive defocused secondary sub-pixel of the secondary sub-pixel group SP2 within the display area A2 emits a positive defocus wavelength g. λ-2-SP2 The light emitted by the corresponding green negative defocus sub-pixel has a negative defocus wavelength g. λ+2+SP2 The light, the offset wavelength λ of the secondary sub-pixel group SP1 within the display area A1. SP2 =R λ -λ2-r λ-2-SP2 =r λ+2+SP2 -R λ -λ2; Display area A n Inner sub-pixel group SP N The blue defocused secondary pixel emits a wavelength b that is positively defocused. λ-n-SPN The light emitted by the corresponding blue negative defocus sub-pixel has a negative defocus wavelength b. λ+n+SPN The light, display area A n Inner sub-pixel group SP N offset wavelength λ SPN =R λ -λ n -r λ-n-SPN =r λ+n+SPN -R λ -λ n .

[0068] It should be noted that in the embodiment, the step value d of the offset wavelength of any adjacent sub-pixel group is the same, i.e. d = λ SP2 - λ SP1 = λ SP3 - λ SP2 = … = λ SPN - λ SPN-1 .

[0069] Please refer to FIG. 9 and FIG. 10, the control unit can control all the positive defocus sub-pixels 211, all the positive focus sub-pixels 213 and all the negative defocus sub-pixels 212, when the display panel is in the non-defocus display state, by controlling the control unit to control all the positive defocus sub-pixels 211, all the positive focus sub-pixels 213 and all the negative defocus sub-pixels 212 to be turned on, the display panel can display a normal picture. When the display panel is in the defocus display state, by controlling the control unit to control all the positive focus sub-pixels 213 and all the negative defocus sub-pixels 212 to be turned off, and only control the positive defocus sub-pixels 211 of the same-named sub-pixel group in all display areas to be turned on, for example, control the positive defocus sub-pixels 211 of all the sub-pixel groups SP1 in all the display areas (A1, A2 … A n ) to be turned on, the positive defocus sub-pixels 211 emit defocus light, so that the display panel can display a defocus picture.

[0070] When it is necessary to switch the defocus level, by controlling the switch to turn off the positive defocus sub-pixels 211 that are being turned on in all the display areas, and by controlling the switch to turn on the positive defocus sub-pixels 211 of another group of same-named sub-pixel groups in all the display areas, for example, control the positive defocus sub-pixels 211 of the sub-pixel group SP1 in all the display areas to be turned off, and then control the positive defocus sub-pixels 211 of the sub-pixel group SP2 in all the display areas to be turned on, so as to realize real-time adjustment of the defocus level of the display panel.

[0071] By setting multiple groups of sub-pixels, and making each sub-pixel group have different offset wavelengths, when the display panel displays a defocus picture, by controlling the switch to switch the positive defocus sub-pixels 211 of different groups to be turned on respectively, so as to realize real-time adjustment of the defocus level of the display panel.

[0072] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0073] Finally, it should be noted that the above embodiments have been described in the specification and drawings of the present application, but this does not limit the patent protection scope of the present application. Any equivalent structure or equivalent process replacement or modification based on the essential concept of the present application, using the content described in the specification and drawings of the present application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A display panel, characterized by, The display panel comprises a panel body (1) having a plurality of pixel units (2), each pixel unit (2) comprising a plurality of sub-pixels (21) including a red sub-pixel, a green sub-pixel and a blue sub-pixel; The display panel has a non-hyperopic display state and a hyperopic display state. When the display panel is in the non-hyperopic display state, the red sub-pixel, the green sub-pixel and the blue sub-pixel emit light of a positive focal length of a corresponding primary color respectively, so that the light emitted by the display panel is imaged on the retina of a viewer. When the display panel is in the hyperopic display state, the red sub-pixel, the green sub-pixel and the blue sub-pixel emit light of a positive hyperopic length of a corresponding primary color respectively, so that the light emitted by the display panel is imaged in front of the retina of a viewer. The positive focal length is greater than the positive hyperopic length of the corresponding primary color.

2. The display panel of claim 1, wherein, The sub-pixel (21) comprises at least one group of secondary sub-pixels, each group of secondary sub-pixels comprising a positive hyperopic secondary sub-pixel (211) and a negative hyperopic secondary sub-pixel (212). The positive hyperopic secondary sub-pixel (211) is used to emit light of a positive hyperopic length of a corresponding primary color. The negative hyperopic secondary sub-pixel (212) emits light of a negative hyperopic length of a corresponding primary color. When the display panel is in the non-hyperopic display state, the positive hyperopic secondary sub-pixel (211) and the negative hyperopic secondary sub-pixel (212) emit light simultaneously, and the sub-pixel (21) emits light equivalent to a positive focal length of a corresponding primary color. When the display panel is in the hyperopic display state, the positive hyperopic secondary sub-pixel (211) emits light, and the negative hyperopic secondary sub-pixel (212) is turned off. The sub-pixel (21) emits light of a positive hyperopic length of a corresponding primary color.

3. The display panel of claim 2, wherein, The panel body (1) has a plurality of display regions arranged in sequence from the center to the periphery. The difference between the positive focal length of the sub-pixel (21) and the positive hyperopic length of the corresponding primary color is a deviation length. The negative hyperopic length is greater than the positive hyperopic length of the corresponding primary color. The negative hyperopic emission length is the sum of the positive focal length of the sub-pixel (21) and the deviation length of the display region where the sub-pixel (21) is located.

4. The display panel of claim 2, wherein, The red sub-pixel comprises a red positive hyperopic secondary sub-pixel and a red negative hyperopic secondary sub-pixel. The green sub-pixel comprises a green positive hyperopic secondary sub-pixel and a green negative hyperopic secondary sub-pixel. The blue sub-pixel comprises a blue positive hyperopic secondary sub-pixel and a blue negative hyperopic secondary sub-pixel. When the display panel is in the non-hyperopic display state, the red positive hyperopic secondary sub-pixel and the red negative hyperopic secondary sub-pixel emit light simultaneously and are equivalent to a red positive focal length. The green positive hyperopic secondary sub-pixel and the green negative hyperopic secondary sub-pixel emit light simultaneously and are equivalent to a green positive focal length. The blue positive hyperopic secondary sub-pixel and the blue negative hyperopic secondary sub-pixel emit light simultaneously and are equivalent to a blue positive focal length.

5. The display panel of claim 2, wherein, The sub-pixel (21) further comprises a positive focal secondary sub-pixel (213) used to directly emit light of a positive focal length of a corresponding primary color. When the display panel is in the non-hyperopic display state, the positive focal secondary sub-pixel (213) emits light. When the display panel is in the hyperopic display state, the positive focal secondary sub-pixel (213) is turned off.

6. The display panel of claim 5, wherein, The display panel further comprises a control unit configured to control the on-off of the positive defocus sub-pixel (211) and the positive focus sub-pixel (213).

7. The display panel of claim 1, wherein, The sub-pixel (21) comprises at least one group of sub-pixels, each group of the sub-pixels comprising a positive defocus sub-pixel (211) and a positive focus sub-pixel (213), the positive defocus sub-pixel (211) being configured to emit light of a corresponding positive defocus wavelength, and the positive focus sub-pixel (213) being configured to directly emit light of a corresponding standard emission wavelength. In a non-defocus display state of the display panel, the positive focus sub-pixel (213) emits light, and the positive defocus sub-pixel (211) is turned off; in a defocus display state of the display panel, the positive focus sub-pixel (213) is turned off, and the positive defocus sub-pixel (211) emits light.

8. The display panel of claim 7, wherein, The display panel further comprises a control unit configured to control the on-off of the positive focus sub-pixel (213).

9. The display panel of claim 1, wherein, The sub-pixel (21) comprises a plurality of groups of sub-pixels, each group of the sub-pixels comprising a positive defocus sub-pixel (211) and a negative defocus sub-pixel (212), a plurality of the positive defocus sub-pixels (211) being respectively configured to emit light of a positive defocus wavelength corresponding to a primary color, a plurality of the negative defocus sub-pixels (212) being respectively configured to emit light of a negative defocus wavelength corresponding to the primary color, and each of the positive defocus sub-pixel (211) and the negative defocus sub-pixel (212) being independently controllable. In a non-defocus display state of the display panel, the positive defocus sub-pixel (211) and the negative defocus sub-pixel (212) of at least one group of sub-pixels emit light simultaneously, and the sub-pixel (21) emits light of a positive focus wavelength equivalent to a corresponding primary color; in a defocus display state of the display panel, the positive defocus sub-pixel (211) of one group of sub-pixels emits light, and the negative defocus sub-pixel (212) is turned off, and the sub-pixel (21) emits light of a positive defocus wavelength corresponding to the primary color.

10. The display panel of claim 9, wherein, The sub-pixel (21) further comprises a positive focus sub-pixel (213) configured to directly emit light of a corresponding standard emission wavelength.

11. The display panel of claim 10, wherein, The display panel further comprises a control unit configured to control the on-off of the negative defocus sub-pixel (212), the positive defocus sub-pixel (211), and the positive focus sub-pixel (213).

12. The display panel of claim 9, wherein, Each group of the sub-pixels (21) has an offset wavelength, and the offset wavelengths of the positive defocus sub-pixel (211) and the negative defocus sub-pixel (212) in the same group are the same.

13. The display panel of claim 12, wherein, The offset wavelengths of any adjacent groups of the sub-pixels have the same step value d.

14. The display panel of claim 1, wherein, The panel body (1) has a plurality of display regions arranged in sequence from the center to the periphery, and the variation trend of the positive defocus wavelength of the same primary color increases in sequence from the center to the periphery according to the positions of the display regions.

15. The display panel of claim 1, wherein, The panel body (1) has a plurality of display areas arranged in sequence from the center to the periphery, a difference between the on-focus wavelength of the sub-pixel (21) and the on-off-focus wavelength of the corresponding primary color is an offset wavelength, and the offset wavelength increases in sequence from the center to the periphery according to the position of the display area.

16. The display panel of claim 15, wherein, The difference between the offset wavelengths of any adjacent display areas is the same.

17. The display panel of claim 16, wherein, The difference between the offset wavelengths of any adjacent display areas is a step value D, and 1nm≤D≤10nm.

18. The display panel of claim 1, wherein, The panel body (1) has a plurality of display areas arranged in sequence from the center to the periphery, a difference between the on-focus wavelength of the sub-pixel (21) and the on-off-focus wavelength of the corresponding primary color is an offset wavelength, and the offset wavelengths of all the sub-pixels (21) in the same area are the same.

19. The display panel of claim 1, wherein, The shape of the sub-pixel (21) is any one of a rectangle, a positive direction, a circle, an ellipse, a triangle, or a diamond.

20. A display device, characterized by The display device comprises the display panel according to any one of claims 1-19.

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