Display panel and display apparatus
By designing a structure consisting of a substrate, a driving circuit layer, a light-emitting layer, and a light-shielding layer in the display panel, a privacy display function with one-click switching is achieved without increasing the thickness, thus solving the problems of increased thickness and limited functionality in existing technologies.
Patent Information
- Application Number
- PCT/CN2024/086551
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-10-16
AI Technical Summary
Existing technologies that increase the thickness of display panels to achieve privacy protection are not conducive to making display panels thinner and lighter, and cannot achieve one-click switching of privacy display functions.
The structure consists of a substrate, a driving circuit layer, a light-emitting layer, and a light-shielding layer. The light-emitting layer includes a privacy-protected light-emitting part and a normal light-emitting part. The driving circuit layer controls the light-emitting mode. The light-shielding layer has openings with different light-emitting angles to achieve switching between privacy-protected and normal modes.
Without increasing the panel thickness, a thinner and lighter display panel is achieved, and the light emission mode can be controlled through the driving circuit layer to meet the needs of privacy protection and provide a privacy display function that can be switched with one click.
Smart Images

Figure CN2024086551_16102025_PF_FP_ABST
Abstract
Description
Display panel and display device TECHNICAL FIELD
[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND
[0002] With the display of more and more applications, we will like to share information with others, but in special circumstances, we hope to have privacy, so the sharing and privacy switching of display will gradually form a functional trend.
[0003] Based on this demand, a liquid crystal layer is added in front of the display screen, and the light emission angle is limited by the liquid crystal turning to meet the demand, but this way will increase the thickness of the display panel, which is not conducive to the thinning of the display panel.
[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art.
[0005] SUMMARY
[0006] The present application aims to overcome the shortcomings of the prior art and provide a display panel and a display device.
[0007] According to one aspect of the present application, a display panel is provided, which comprises a substrate, a light-emitting layer, a drive circuit layer and a light-shielding layer. The light-emitting layer is arranged on one side of the substrate, and the light-emitting layer comprises a pixel definition layer and at least three different color light-emitting units. The pixel definition layer is provided with a plurality of pixel openings. Each color light-emitting unit comprises a privacy light-emitting part and a normal light-emitting part. The privacy light-emitting part and the normal light-emitting part are arranged in different pixel openings, respectively. The normal light-emitting part is arranged in a normal light-emitting row, and the privacy light-emitting part is arranged in a privacy light-emitting row. The privacy light-emitting row and the normal light-emitting row are arranged alternately along the column direction. The drive circuit layer is arranged between the substrate and the light-emitting layer, and the drive circuit layer comprises a pixel circuit. The pixel circuit is used to drive the privacy light-emitting part to emit light, and control the normal light-emitting part not to emit light, or is used to drive the privacy light-emitting part and the normal light-emitting part to emit light simultaneously, or is used to drive the normal light-emitting part to emit light, and control the privacy light-emitting part not to emit light. The light-shielding layer is arranged on the side of the light-emitting layer away from the substrate. The orthographic projection of the light-shielding layer on the substrate overlaps the orthographic projection of the privacy light-emitting row on the substrate. The light-shielding layer is provided with a first opening. The light of the privacy light-emitting part is emitted from the first opening. The light emission angle of the first opening is smaller than the light emission angle of the normal light-emitting part.
[0008] In one embodiment of the present application, the at least three different color light emitting units include a first light emitting unit, a second light emitting unit, and a third light emitting unit, the first light emitting unit is a red light emitting unit, the second light emitting unit is a green light emitting unit, and the third light emitting unit is a blue light emitting unit, the first light emitting unit and the second light emitting unit are located in one column, and the third light emitting unit is located in another column, the normal light emitting part includes a first normal light emitting part, a second normal light emitting part, and a third normal light emitting part, the anti-peep light emitting part includes a first anti-peep light emitting part, a second anti-peep light emitting part, and a third anti-peep light emitting part, the first anti-peep light emitting part and the second anti-peep light emitting part are arranged in an anti-peep light emitting row with the third anti-peep light emitting part, and the first normal light emitting part and the second normal light emitting part are arranged in a normal light emitting row with the third normal light emitting part.
[0009] In one embodiment of the present application, the first normal light emitting part and the first anti-peep light emitting part located adjacent to each other in the column direction are symmetric about a first straight line, the second normal light emitting part and the second anti-peep light emitting part located adjacent to each other in the column direction are symmetric about a second straight line, the first straight line and the second straight line are respectively located at two ends of the third normal light emitting part in the column direction, and the third normal light emitting part and the third anti-peep light emitting part located on both sides of the third normal light emitting part are respectively symmetric about the first straight line and the second straight line.
[0010] In one embodiment of the present application, in the same normal light emitting row, the first normal light emitting part and the second normal light emitting part are located adjacent to each other in the column direction, and the first normal light emitting part and the second normal light emitting part are symmetric about a center line of the third normal light emitting part in the row direction, and in the same anti-peep light emitting row, the first anti-peep light emitting part and the second anti-peep light emitting part are located adjacent to each other in the column direction, and the first anti-peep light emitting part and the second anti-peep light emitting part are symmetric about a center line of the third anti-peep light emitting part in the row direction.
[0011] In one embodiment of the present application, the first normal light emitting part includes a plurality of rows and a plurality of columns of first normal light emitting units, the second normal light emitting part includes a plurality of rows and a plurality of columns of second normal light emitting units, the plurality of columns of first normal light emitting units and the plurality of columns of second normal light emitting units are aligned with each other, the third normal light emitting part includes a plurality of rows and a plurality of columns of third normal light emitting units, the second normal light emitting units and the third normal light emitting units are arranged in a first normal sub-light emitting row, and the first normal light emitting units and the third normal light emitting units are arranged in a second normal sub-light emitting row.
[0012] In one embodiment of the present application, the first normal light emitting part includes a first normal light emitting strip extending in the row direction, the second normal light emitting part includes a second normal light emitting strip extending in the row direction, the third normal light emitting part includes a third normal light emitting strip extending in the row direction, the second normal light emitting strip and the third normal light emitting strip are arranged in a first normal sub-light emitting row, the first normal light emitting strip and the third normal light emitting strip are arranged in a second normal sub-light emitting row, the first normal light emitting strip and the second normal light emitting strip are located in one column, and the third normal light emitting strip is located in another column.
[0013] In an embodiment of the present application, the first anti-peep light-emitting part includes multiple rows and columns of first anti-peep light-emitting units, the second anti-peep light-emitting part includes multiple rows and columns of second anti-peep light-emitting units, the multiple columns of first anti-peep light-emitting units are aligned with the multiple columns of second anti-peep light-emitting units, the third anti-peep light-emitting part includes multiple rows and columns of third anti-peep light-emitting units, the second anti-peep light-emitting units and the third anti-peep light-emitting units form two first anti-peep sub-light-emitting rows, and the first anti-peep light-emitting units and the third anti-peep light-emitting units form a second anti-peep sub-light-emitting row.
[0014] In an embodiment of the present application, the first anti-peep light-emitting part includes a first anti-peep light-emitting strip extending in a row direction, the second anti-peep light-emitting part includes a second anti-peep light-emitting strip extending in the row direction, the third anti-peep light-emitting part includes a third anti-peep light-emitting strip extending in the row direction, the second anti-peep light-emitting strip and the third anti-peep light-emitting strip form a first anti-peep sub-light-emitting row, the first anti-peep light-emitting strip and the third anti-peep light-emitting strip form a second anti-peep sub-light-emitting row, the first anti-peep light-emitting strip and the second anti-peep light-emitting strip are located in one column, and the third anti-peep light-emitting strip is located in another column.
[0015] In an embodiment of the present application, when the first normal light-emitting part includes multiple rows and columns of first normal light-emitting units, the second normal light-emitting part includes multiple rows and columns of multiple second normal light-emitting units, and the third normal light-emitting part includes multiple rows and columns of third normal light-emitting units, the shapes of the first anti-peep light-emitting units, the second anti-peep light-emitting units, the third anti-peep light-emitting units, the first normal light-emitting units, the second normal light-emitting units, and the third normal light-emitting units are circular or regular polygonal.
[0016] In an embodiment of the present application, the ratio of the area of the first normal light-emitting part, the area of the second normal light-emitting part, and the area of the third normal light-emitting part is 1:2:3, and the ratio of the area of the first anti-peep light-emitting part, the area of the second anti-peep light-emitting part, and the area of the third anti-peep light-emitting part is 1:2:3.
[0017] In an embodiment of the present application, the normal light-emitting row further includes a second opening, the light of the normal light-emitting part is emitted from the second opening, and the light-emitting angle of the second opening is greater than the light-emitting angle of the first opening.
[0018] In an embodiment of the present application, the display panel further includes a light filtering unit, the light filtering unit includes a normal light filtering part and an anti-peep light filtering part, the anti-peep light filtering part is arranged in the first opening, the normal light filtering part is arranged in the second opening, the color of the anti-peep light filtering part is the same as that of the corresponding anti-peep light-emitting part, and the color of the normal light filtering part is the same as that of the corresponding normal light-emitting part.
[0019] In an embodiment of the present application, the first opening includes multiple sub-first openings, and the normal light-emitting unit is arranged in the sub-first opening.
[0020] In an embodiment of the present application, the display panel further comprises a protective layer and a touch layer group, the protective layer is arranged on the side of the light shielding layer away from the substrate, the touch layer group comprises a first touch control layer and a second touch control layer, the first touch control layer is arranged on the side of the protective layer away from the substrate, the side of the first touch control layer away from the substrate is provided with a first passivation layer, the second touch control layer is arranged on the side of the first passivation layer away from the substrate, and the side of the second touch control layer away from the substrate is provided with a second passivation layer.
[0021] In an embodiment of the present application, the touch layer group further comprises a third touch control layer and a third passivation layer, the third touch control layer and the third passivation layer are sequentially arranged between the protective layer and the first touch control layer in the direction away from the substrate, the orthographic projection of the third touch control layer on the substrate overlaps the orthographic projection of the peep-proof light-emitting row on the substrate, the third touch control layer is provided with a touch opening, the orthographic projection of the sub-first opening on the substrate is located in the orthographic projection of the touch opening on the substrate, and the area of the touch opening is greater than the area of the sub-first opening.
[0022] In an embodiment of the present application, the third touch control layer is connected with a reference signal with constant potential.
[0023] In an embodiment of the present application, the second touch control layer comprises a plurality of first touch units, a touch opening is formed between any two adjacent first touch units, the orthographic projection of the sub-first opening on the substrate is located in the orthographic projection of the touch opening on the substrate, and the area of the touch opening is greater than the area of the sub-first opening.
[0024] In an embodiment of the present application, the display panel further comprises a peep-proof light path regulation layer and a normal light path regulation layer, the peep-proof light path regulation layer and the normal light path regulation layer are arranged on the side of the touch layer group away from the substrate, the orthographic projection of the peep-proof light path regulation layer on the substrate covers the orthographic projection of the peep-proof light-emitting part on the substrate, the orthographic projection of the normal light path regulation layer on the substrate covers the orthographic projection of the normal light-emitting part on the substrate, the peep-proof light path regulation layer is used for reducing the exit angle of the emitted light of the peep-proof light-emitting part, and the normal light path regulation layer is used for increasing the exit angle of the emitted light of the peep-proof light-emitting part.
[0025] In an embodiment of the present application, the peep-proof light path regulation layer comprises a first sub-light path regulation layer and a second sub-light path regulation layer which are sequentially arranged in the direction away from the substrate, the refractive index of the first sub-light path regulation layer is greater than the refractive index of the second sub-light path regulation layer, the first sub-light path regulation layer comprises a plurality of first sub-lenses, and the orthographic projection of the peep-proof light-emitting part on the substrate is located in the orthographic projection of the first sub-lenses on the substrate.
[0026] In an embodiment of the present application, the display panel further comprises a normal light path regulation layer, the normal light path regulation layer comprises a third sub light path regulation layer and a fourth sub light path regulation layer arranged in sequence in a direction away from the substrate substrate, the refractive index of the third sub light path regulation layer is greater than the refractive index of the fourth sub light path regulation layer, and the fourth sub light path regulation layer comprises a plurality of second sub lenses, the normal light-emitting part is in the normal projection of the second sub lens on the substrate substrate.
[0027] In an embodiment of the present application, the anti-peep light path regulation layer further comprises a fifth sub light path regulation layer, the fifth sub light path regulation layer is arranged on the side of the second sub light path regulation layer away from the substrate substrate, and the refractive index of the fifth sub light path regulation layer is greater than the refractive index of the second sub light path regulation layer.
[0028] In an embodiment of the present application, the normal light path regulation layer further comprises a sixth sub light path regulation layer, the sixth sub light path regulation layer is arranged on the side of the fourth sub light path regulation layer close to the substrate substrate, and the refractive index of the sixth sub light path regulation layer is greater than the refractive index of the fourth sub light path regulation layer.
[0029] In an embodiment of the present application, the first sub light path regulation layer and the third sub light path regulation layer are arranged in the same layer and the same material, the second sub light path regulation layer and the fourth sub light path regulation layer are arranged in the same layer and the same material, and the fifth sub light path regulation layer and the sixth sub light path regulation layer are arranged in the same layer and the same material.
[0030] In an embodiment of the present application, when the anti-peep light-emitting part comprises a first anti-peep light-emitting unit, a second anti-peep light-emitting unit and a third anti-peep light-emitting unit, the first sub lens is a hemispherical lens, and when the normal light-emitting part comprises a first normal light-emitting strip, a second normal light-emitting strip and a third normal light-emitting strip, the second sub lens is a circular arc columnar lens.
[0031] In an embodiment of the present application, the normal light-emitting part is in the normal projection of the second sub lens on the substrate substrate.
[0032] In an embodiment of the present application, the display panel further comprises a polarizing plate layer, the polarizing plate layer is arranged on the side of the anti-peep light path regulation layer and the normal light path regulation layer away from the substrate substrate.
[0033] In an embodiment of the present application, the display panel further comprises an encapsulation layer, the encapsulation layer is arranged on the side of the light-emitting layer away from the substrate substrate, and the light shielding layer is arranged on the side of the encapsulation layer away from the substrate substrate.
[0034] In an embodiment of the present application, the light shielding layer is a black filter layer or a metal light shielding layer.
[0035] In one embodiment of the present application, the pixel circuit comprises a first reset transistor, a compensation transistor, a drive transistor, a write transistor, a first light-emitting control transistor, a second light-emitting control transistor, a third light-emitting control transistor, a fourth light-emitting control transistor, a second reset transistor, and a storage capacitor; the first electrode of the first reset transistor is used for receiving a first reset signal, the second electrode is connected with the gate electrode of the drive transistor and the first electrode plate of the storage capacitor; the first electrode of the compensation transistor is connected with the second electrode of the drive transistor, and the second electrode is connected with the gate electrode of the drive transistor; the compensation transistor has two channels in series; the first electrode of the write transistor is connected with a data line, and the second electrode is connected with the first electrode of the drive transistor; the first electrode of the first light-emitting control transistor and the second electrode plate of the storage capacitor are connected with a power supply line, and the second electrode is connected with the first electrode of the drive transistor; the first electrode of the second light-emitting control transistor is connected with the second electrode of the drive transistor, and the second electrode is connected with the first electrode of the third light-emitting control transistor and the first electrode of the fourth light-emitting control transistor respectively; the first electrode of the second reset transistor is connected with a second reset signal line for receiving a second reset signal, and the second electrode is connected with the second electrode of the third light-emitting control transistor; the second electrode of the third light-emitting control transistor is connected with a normal pixel electrode of a normal light-emitting part; and the second electrode of the fourth light-emitting control transistor is connected with an anti-peep pixel electrode of an anti-peep light-emitting part.
[0036] According to yet another aspect of the present application, there is provided a display device comprising a plurality of display panels according to any one of the other aspects of the present application.
[0037] It should be understood that the general description above and the following detailed description are only exemplary and explanatory, and are not limiting to the present application. BRIEF DESCRIPTION OF DRAWINGS
[0038] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. It is clear that 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 on the basis of these drawings.
[0039] FIG. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present application, when the light-emitting unit is divided into a normal light-emitting part and an anti-peep light-emitting part.
[0040] FIG. 2 is a diagram showing the positional relationship of each color light-emitting unit of a pixel unit according to an embodiment of the present application, when the light-emitting unit is not divided.
[0041] Figure 3 is a position relationship diagram of each color anti-peep light emitting part and normal light emitting part according to an embodiment of the present application, when the first anti-peep light emitting part, the first normal light emitting part, the second anti-peep light emitting part, the second normal light emitting part, the third anti-peep light emitting part and the third normal light emitting part are arranged alternately along the column direction.
[0042] Figure 4 is a position relationship diagram of each color anti-peep light emitting part and normal light emitting part according to an embodiment of the present application, when the first normal light emitting part and the second normal light emitting part are arranged as a normal light emitting row, and the first anti-peep light emitting part and the second anti-peep light emitting part are arranged as an anti-peep light emitting row.
[0043] Figure 5 is a position relationship diagram of each color anti-peep light emitting part and normal light emitting part according to an embodiment of the present application, when the anti-peep light emitting part includes multiple rows and columns of anti-peep light emitting units, and the normal light emitting part includes a normal light emitting strip extending along the row direction.
[0044] Figure 6 is a position relationship diagram of each color anti-peep light emitting part and normal light emitting part according to an embodiment of the present application, when the anti-peep light emitting part includes multiple rows and columns of anti-peep light emitting units, and the normal light emitting part includes a normal light emitting unit extending along the row direction.
[0045] Figure 7 is a position relationship diagram of each color anti-peep light emitting part and normal light emitting part according to an embodiment of the present application, when the anti-peep light emitting part includes an anti-peep light emitting strip extending along the row direction, and the normal light emitting part includes a normal light emitting strip extending along the row direction.
[0046] Figure 8 is a cross-sectional schematic diagram of a normal light emitting area of a display panel according to an embodiment of the present application, when the optical exit angle of the normal light emitting part is increased.
[0047] Figure 9 is a cross-sectional schematic diagram of an anti-peep light emitting area of a display panel according to an embodiment of the present application, when the optical exit angle of the anti-peep light emitting part is reduced.
[0048] Figure 10 is a cross-sectional schematic diagram of an anti-peep light emitting area and a normal light emitting area of a display panel according to an embodiment of the present application, when the light shielding layer is provided with a first opening and a second opening, the third touch control layer is provided with a touch control opening, and the light shielding layer is a black filter layer.
[0049] Figure 11 is a light path schematic diagram of an anti-peep light emitting area and a normal light emitting area of a display panel according to an embodiment of the present application, when the light shielding layer is provided with a first opening and a second opening, the third touch control layer is provided with a touch control opening, and the light shielding layer is a black filter layer.
[0050] Figure 12 is a light path schematic diagram of an anti-peep light emitting area and a normal light emitting area of a display panel according to an embodiment of the present application, when the anti-peep light emitting part is provided with an anti-peep light path control layer, and the normal light emitting part is provided with a normal light path control layer.
[0051] Fig. 13 is a cross-sectional schematic view of a display panel according to an embodiment of the present application, wherein a first opening is provided with a peep-proof filter, a second opening is provided with a normal filter, and a third touch control layer is provided with a touch opening.
[0052] Fig. 14 is a cross-sectional schematic view of a display panel according to an embodiment of the present application, wherein a first opening and a second opening are provided in a light shielding layer, a first touch control layer is provided with a touch opening, and the light shielding layer is a metal light shielding layer.
[0053] Fig. 15 is a cross-sectional schematic view of a display panel according to an embodiment of the present application, wherein a first opening and a second opening are provided in a light shielding layer, a third touch control layer is provided with a touch opening, and the light shielding layer is a metal light shielding layer.
[0054] Fig. 16 is a schematic view of a pixel circuit according to an embodiment of the present application.
[0055] Fig. 17 is a flow chart of a manufacturing method of a display panel according to an embodiment of the present application.
[0056] Fig. 18 is a cross-sectional schematic view of a substrate after a driving circuit layer is formed thereon according to an embodiment of the present application.
[0057] Fig. 19 is a cross-sectional schematic view of a driving circuit layer after a light emitting layer and an encapsulation layer are sequentially formed thereon according to an embodiment of the present application.
[0058] Fig. 20 is a cross-sectional schematic view of an encapsulation layer after a light shielding layer and a protection layer are sequentially formed thereon according to an embodiment of the present application.
[0059] Fig. 21 is a cross-sectional schematic view of a protection layer after a touch layer group is formed thereon according to an embodiment of the present application.
[0060] Fig. 22 is a cross-sectional schematic view of a protection layer after a first refractive layer is formed thereon, and a first sub-lens and a third sub-light path control layer are formed from the first refractive layer according to an embodiment of the present application.
[0061] Fig. 23 is a cross-sectional schematic view of a first refractive layer after a second refractive layer is formed thereon, and a second sub-light path control layer and a second sub-lens are formed from the second refractive layer according to an embodiment of the present application.
[0062] Fig. 24 is a cross-sectional schematic view of a second refractive layer after a third refractive layer is formed thereon according to an embodiment of the present application.
[0063] Explanation of reference signs: 1-substrate substrate; 2-driving circuit layer, 21-pixel circuit, 211-active layer, 212-gate insulating layer, 213-gate, 214-interlayer dielectric layer, 215-source, 216-drain, 217-planarization layer, 218-buffer layer, 3-emitting layer, 31-pixel definition layer, 311-pixel opening, 32-emitting unit, 321-anti-peep emitting part, 3211-anti-peep pixel electrode, 3212-anti-peep emitting material part, 3213-anti-peep common electrode, 322-normal emitting part, 3221-normal pixel electrode, 3222-normal emitting material part, 3223-normal common electrode, 301-first emitting unit, 3011-first anti-peep emitting part, 3012-first normal emitting part, 3013-first anti-peep emitting strip, 3014-first normal emitting strip, 3015-first anti-peep emitting unit, 3016-first normal emitting unit, 302-second emitting unit, 3021-second anti-peep emitting part, 3022-second normal emitting part, 3023-second anti-peep emitting strip, 3024-second normal emitting strip, 3025-second anti-peep emitting unit, 3026-second normal emitting unit, 303-third emitting unit, 3031-third anti-peep emitting part, 3032-third normal emitting part, 3033-third anti-peep emitting strip, 3034-third normal emitting strip, 3035-third anti-peep emitting unit, 3036-third normal emitting unit, 300-pixel unit, 3001-anti-peep pixel part, 3002-normal pixel part, 330-anti-peep emitting row, 340-normal emitting row, 4-encapsulation layer, 5-shielding layer, 51-first opening, 52-second opening, 53-anti-peep light filtering part, 54-normal light filtering part, 6-touch layer group, 61-protection layer, 62-first touch control layer, 63-second touch control layer, 631-touch control driving metal grid, 632-touch control sensing metal grid, 64-first passivation layer, 65-second passivation layer, 66-third touch control layer, 67-third passivation layer, 601-touch opening, 7-light path regulation layer, 71-anti-peep light path regulation layer, 711-first sub-light path regulation layer, 7111-first sub-lens, 712-second sub-light path regulation layer, 713-fifth sub-light path regulation layer, 72-normal light path regulation layer, 721-third sub-light path regulation layer, 722-fourth sub-light path regulation layer, 7221-second sub-lens, 723-sixth sub-light path regulation layer, 8-polarizer layer, 9-cover plate. DETAILED DESCRIPTION
[0064] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations can be implemented in any of various forms, and should not be limited to implementations set forth in the following description; rather, implementations can be implemented in forms that exist today or in forms yet to be developed. Like reference numerals can be used to denote like components throughout the drawings and detailed descriptions thereof can be omitted. Further, the drawings are not necessarily drawn to scale.
[0065] Although relative terms such as "upper", "lower", etc. are used herein to describe one component's relationship to another component of the icon, these terms are used herein for convenience only and are not necessarily limiting. It will be further understood that if the icon is turned over, such that the "upper" component becomes the "lower" component, the aforementioned orientation will be reversed. When a structure is "on" or "under" another structure, it can mean that the structure is formed integrally with the other structure or that the structure is "directly" on the other structure, or that the structure is "indirectly" on the other structure via another structure.
[0066] The terms "one", "a", "an", "said", and "the" are used to indicate the existence of one or more than one element / component / etc.; the terms "including" and "having" are used as synonymous and open-ended terms (i.e., meaning that one can find the other element / component / etc. present) with regard to an open-ended group of one or more elements / components / etc.; and the terms "first", "second", and "third", etc. are merely labels used to indicate whether the referenced object is of a certain category and are not otherwise limiting on the number of objects.
[0067] As more and more applications are displayed, we would like to share information with others, but in special cases, we also want privacy, such as: when dealing with company confidential information, the information is easy to be seen by others next to it; such as when entering personal information on a mobile phone, personal information is also easy to be seen by others; therefore, the sharing and privacy switching of display will gradually form a functional trend. In the early stage, an external anti-peeping film was used, which was manually hung in front of the display screen when privacy was needed, and manually removed when not needed, but one-key switching could not be achieved. In recent years, a liquid crystal layer is added in front of the display screen, and the light emitting angle is limited by the liquid crystal turning, but this increases the thickness of the display panel.
[0068] Based on this, the display panel provided by the embodiment of the present application is shown in FIGS. 1-15. The display panel comprises a substrate 1, a driving circuit layer 2, a light-emitting layer 3, and a light-shielding layer 5. The light-emitting layer 3 is arranged on one side of the substrate 1. The light-emitting layer 3 comprises a pixel definition layer 31 and at least three different colors of light-emitting units 32. The pixel definition layer 31 is provided with a plurality of pixel openings 311. Each color of light-emitting unit 32 comprises a privacy light-emitting part 321 and a normal light-emitting part 322. The privacy light-emitting part 321 and the normal light-emitting part 322 are arranged in different pixel openings 311, respectively. The normal light-emitting part 322 is arranged in a normal light-emitting row 340, and the privacy light-emitting part 321 is arranged in a privacy light-emitting row 330. The privacy light-emitting row 330 and the normal light-emitting row 340 are alternately arranged along the column direction. The driving circuit layer 2 is arranged between the substrate 1 and the light-emitting layer 3. The driving circuit layer 2 comprises a pixel circuit 21. The pixel circuit 21 is used to drive the privacy light-emitting part 321 to emit light and control the normal light-emitting part 322 not to emit light, or is used to drive the privacy light-emitting part 321 and the normal light-emitting part 322 to emit light at the same time, or is used to drive the normal light-emitting part 322 to emit light and control the privacy light-emitting part 321 not to emit light. The light-shielding layer 5 is arranged on the side of the light-emitting layer 3 away from the substrate 1. The light-shielding layer 5 is provided with a first opening 51. The light emitted by the privacy light-emitting part 321 exits from the first opening 51. The light-emitting angle of the first opening 51 is smaller than the light-emitting angle of the normal light-emitting part 322.
[0069] Each color of light-emitting unit 32 comprises a privacy light-emitting part 321 and a normal light-emitting part 322. The light-shielding layer 5 is provided with a first opening 51. The light emitted by the privacy light-emitting part 321 exits from the first opening 51. The light-emitting angle of the first opening 51 is smaller than the light-emitting angle of the normal light-emitting part 322. The privacy light-emitting part 321 can be driven to emit light, so that the display panel is in a privacy mode. The privacy light-emitting part 321 and the normal light-emitting part 322 can also be driven to emit light at the same time, or the normal light-emitting part 322 can be driven to emit light and the privacy light-emitting part 321 can be controlled not to emit light, so that the display panel is in a normal mode. The normal light-emitting part 322 is arranged in a normal light-emitting row 340, and the privacy light-emitting part 321 is arranged in a privacy light-emitting row 330. The privacy light-emitting row 330 and the normal light-emitting row 340 are alternately arranged along the column direction. The distance between any two privacy light-emitting rows 330 along the column direction is equal to the width of the normal light-emitting row 340. Therefore, whether in the normal mode or the privacy mode, the light-emitting area of the light-emitting layer 3 is uniformly distributed in the display area. The display panel is thinned while the visual color performance of the display panel is greatly improved.
[0070] The display panel related to the embodiment of the present application is described in detail below in combination with specific examples.
[0071] As shown in FIG. 1 and FIG. 2, the display panel can generally include a substrate 1, a driving circuit layer 2, a planarization layer 217 and a light-emitting layer 3, the driving circuit layer 2 is arranged on one side of the substrate 1, the planarization layer 217 is arranged on the side of the driving circuit layer 2 away from the substrate 1, and the light-emitting layer 3 is arranged on the side of the planarization layer 217 away from the substrate 1. In addition, the display panel can further include a buffer layer 218 arranged between the substrate 1 and the driving circuit layer 2.
[0072] The substrate 1 can be a substrate 1 of inorganic material or a substrate 1 of organic material. For example, in an embodiment of the present disclosure, the material of the substrate 1 can be a glass material such as soda-lime glass, quartz glass or sapphire glass, or a metal material such as stainless steel, aluminum or nickel.
[0073] In another embodiment of the present disclosure, the substrate 1 can also be a flexible substrate 1, for example, the material of the substrate 1 can be polyimide (PI). The substrate 1 can also be a composite of multiple layers of materials. For example, in an embodiment of the present disclosure, the substrate 1 can include a bottom film layer, a pressure-sensitive adhesive layer, a first polyimide layer and a second polyimide layer arranged in sequence. If the flexible substrate 1 is a multi-layer structure, a buffer layer 218 can be added between the layers, which is an inorganic thin film and can be SiNx, SiOx or a composite layer thereof.
[0074] The driving circuit layer 2 is provided with a pixel circuit 21 for driving a light-emitting unit 32. The pixel circuit 21 is located in a display area, and any one pixel circuit 21 can include a transistor, which can be a thin film transistor selected from a top-gate thin film transistor, a bottom-gate thin film transistor or a dual-gate thin film transistor. Taking the top-gate thin film transistor as an example, the thin film transistor can include an active layer 211, a gate 213, a gate insulating layer 212, a source 215 and a drain 216, wherein:
[0075] The active layer 211 is arranged on one side of the substrate 1, and the material of the active layer 211 can be amorphous silicon semiconductor material, low-temperature polycrystalline silicon semiconductor material, metal oxide semiconductor material, organic semiconductor material or other types of semiconductor material, so that the thin film transistor can be an N-type thin film transistor or a P-type thin film transistor. The active layer 211 can include a channel region and two doped regions of different doping types located on both sides of the channel region.
[0076] The gate insulating layer 212 is arranged on the side of the active layer 211 away from the substrate substrate 1, and can cover the active layer 211 and the substrate substrate 1. The gate electrode 213 is arranged on the side of the gate insulating layer 212 away from the substrate substrate 1, and is opposite to the active layer 211, that is, the projection of the gate electrode 213 on the substrate substrate 1 is within the projection range of the active layer 211 on the substrate substrate 1, for example, the projection of the gate electrode 213 on the substrate substrate 1 coincides with the projection of the channel region of the active layer 211 on the substrate substrate 1. The material of the gate insulating layer 212 is an insulating material such as silicon oxide.
[0077] The thin film transistor can further include an interlayer dielectric layer 214 arranged on the side of the gate electrode 213 away from the substrate substrate 1, which can cover the gate electrode 213 and the gate insulating layer 212. The interlayer dielectric layer 214 is an insulating material. The source electrode 215 and the drain electrode 216 are arranged on the surface of the interlayer dielectric layer 214 away from the substrate substrate 1, and are connected to the active layer 211, for example, the source electrode 215 and the drain electrode 216 are respectively connected to the two doped regions of the corresponding active layer 211 through vias. The side of the source electrode 215 and the drain electrode 216 away from the substrate substrate 1 is provided with a planarization layer 217, and the surface of the planarization layer 217 away from the substrate substrate 1 is a plane.
[0078] The light-emitting layer 3 includes a pixel definition layer 31 and three different colors of light-emitting units 32. The pixel definition layer 31 is arranged on the side of the planarization layer 217 away from the array substrate, and has a plurality of pixel openings 311. The plurality of light-emitting units 32 are respectively arranged in different pixel openings 311. Each color of light-emitting unit 32 includes a privacy light-emitting part 321 and a normal light-emitting part 322, which are respectively arranged in different pixel openings 311.
[0079] Each light-emitting unit 32 can include a pixel electrode, a light-emitting element, and a common electrode. The pixel electrode is located on the surface of the planarization layer 217 away from the substrate substrate 1. The light-emitting element is arranged on the surface of the pixel electrode away from the substrate substrate 1. The common electrode is arranged on the surface of the light-emitting element away from the substrate substrate 1. The common electrode can serve as a cathode, and the pixel electrode can serve as an anode. The light-emitting element can be driven to emit light by the pixel electrode and the common electrode to display an image. The specific light-emitting principle is not described in detail here.
[0080] The light-emitting unit 32 can adopt an electroluminescent device. The light-emitting element can contain electroluminescent organic material and can be formed by evaporation and other processes. For example, the light-emitting element can include a hole injection layer, a hole transport layer, a light generating layer, an electron transport layer, and an electron injection layer, which are sequentially stacked on the pixel electrode layer.
[0081] The light emitting units 32 can be generally divided into a first light emitting unit 301, a second light emitting unit 302 and a third light emitting unit 303 according to the color of light emitted. The first light emitting unit 301 is a red light emitting unit, the second light emitting unit 302 is a green light emitting unit, and the third light emitting unit 303 is a blue light emitting unit. The first light emitting unit 301 and the second light emitting unit 302 are the same in shape and size and are symmetrically arranged about the center line of the third light emitting unit 303 in the row direction. The first light emitting unit 301 and the second light emitting unit 302 are arranged in one column, and the third light emitting unit 303 is arranged in another column.
[0082] As shown in FIG. 1, each light emitting unit 32 includes a privacy light emitting part 321 and a normal light emitting part 322, which can be the same in shape and size. Since the light emitting unit 32 is divided into the privacy light emitting part 321 and the normal light emitting part 322, the pixel electrode includes a privacy pixel electrode 3211 and a normal pixel electrode 3221, the light emitting element includes a privacy light emitting material part 3212 and a normal light emitting material part 3222, and the common electrode includes a privacy common electrode 3213 and a normal common electrode 3223. The privacy light emitting part 321 and the normal light emitting part 322 can share the same common electrode.
[0083] As shown in FIG. 3, the first light emitting unit 301 includes a first privacy light emitting part 3011 and a first normal light emitting part 3012, the first light emitting unit 301 includes a second privacy light emitting part 3021 and a second normal light emitting part 3022, and the third light emitting unit 303 includes a third privacy light emitting part 3031 and a third normal light emitting part 3032. The first privacy light emitting part 3011, the first normal light emitting part 3012, the second privacy light emitting part 3021 and the second normal light emitting part 3022 are alternately arranged in the column direction, the second privacy light emitting part 3021, the second normal light emitting part 3022 and the third privacy light emitting part 3031 are arranged in the same row, and the second privacy light emitting part 3021 and the second normal light emitting part 3022 are the same in shape and size and are symmetrically arranged about the third privacy light emitting part 3031 in the row direction. The first privacy light emitting part 3011, the first normal light emitting part 3012 and the third normal light emitting part 3032 are arranged in the same row, and the first privacy light emitting part 3011 and the first normal light emitting part 3012 are the same in shape and size and are symmetrically arranged about the third normal light emitting part 3032 in the row direction.
[0084] It should be noted that the row direction is the x direction shown in the figure, and the column direction is the y direction shown in the figure.
[0085] The first light emitting unit 301, the second light emitting unit 302 and the third light emitting unit 303 constitute the pixel unit 300, the first anti-peep light emitting part 3011, the second anti-peep light emitting part 3021 and the third anti-peep light emitting part 3031 constitute the anti-peep pixel part 3001, and the first normal light emitting part 3012, the second normal light emitting part 3022 and the third normal light emitting part 3032 constitute the normal pixel part 3002. In the anti-peep mode, the anti-peep pixel part 3001 composed of the first anti-peep light emitting part 3011, the second anti-peep light emitting part 3021 and the third anti-peep light emitting part 3031 displays images alone. In the normal mode, the normal pixel part 3002 composed of the first normal light emitting part 3012, the second normal light emitting part 3022 and the third normal light emitting part 3032 displays images. In the normal mode, the pixel unit 300 composed of the first light emitting unit 301, the second light emitting unit 302 and the third light emitting unit 303 also displays images, that is, the anti-peep pixel part 3001 and the normal pixel part 3002 jointly display images.
[0086] After the pixel unit 300 is divided into the anti-peep pixel part 3001 and the normal pixel part 3002, the first anti-peep light emitting part 3011, the second anti-peep light emitting part 3021 and the third anti-peep light emitting part 3031 are arranged dispersedly, so that in the anti-peep mode, the display panel may not be good in visual color performance. Therefore, the arrangement modes of the first anti-peep light emitting part 3011, the first normal light emitting part 3012, the second anti-peep light emitting part 3021, the second normal light emitting part 3022, the third anti-peep light emitting part 3031 and the third normal light emitting part 3032 are adjusted.
[0087] As shown in FIG. 4, the first normal light emitting part 3012 and the second normal light emitting part 3022 are arranged in a normal light emitting row 340 with the third normal light emitting part 3032, the first anti-peep light emitting part 3011 and the second anti-peep light emitting part 3021 are arranged in an anti-peep light emitting row 330 with the third anti-peep light emitting part 3031, and the anti-peep light emitting row 330 and the normal light emitting row 340 are alternately arranged along the column direction. The first normal light emitting part 3012 adjacent along the column direction to the first anti-peep light emitting part 3011 is symmetrical about a first straight line x1, the second normal light emitting part 3022 adjacent along the column direction to the second anti-peep light emitting part 3021 is symmetrical about a second straight line x2, and the first straight line x1 and the second straight line x2 are respectively located at two ends of the third normal light emitting part 3032 along the column direction, and the third normal light emitting part 3032 and the third anti-peep light emitting parts 3031 on both sides thereof are respectively symmetrical about the first straight line x1 and the second straight line x2.
[0088] The shapes of the privacy light emitting part 321 and the normal light emitting part 322 are the same in size, in the same normal light emitting row 340, the first normal light emitting part 3012 and the second normal light emitting part 3022 are arranged adjacent in the column direction, and the first normal light emitting part 3012 and the second normal light emitting part 3022 are symmetrically arranged about the center line of the third normal light emitting part 3032 in the row direction, in the same privacy light emitting row 330, the first privacy light emitting part 3011 and the second privacy light emitting part 3021 are arranged adjacent in the column direction, and the first privacy light emitting part 3011 and the second privacy light emitting part 3021 are symmetrically arranged about the center line of the third privacy light emitting part 3031 in the row direction.
[0089] In order to further improve the color performance of the display panel in vision, the privacy light emitting part 321 and the normal light emitting part 322 of various colors can be further segmented. As shown in FIG. 5, the first privacy light emitting part 3011 includes a row of two columns of first privacy light emitting units 3015, the second privacy light emitting part 3021 includes two rows of two columns of second privacy light emitting units 3025, the two columns of first privacy light emitting units 3015 and the two columns of second privacy light emitting units 3025 are aligned in a column in the column direction, the third privacy light emitting part 3031 includes three rows of two columns of third privacy light emitting units 3035, the two rows of second privacy light emitting units 3025 and the two rows of third privacy light emitting units 3035 form two first privacy light emitting sub-rows, and the row of first privacy light emitting units 3015 and the row of third privacy light emitting units 3035 form a second privacy light emitting sub-row.
[0090] The first normal light emitting part 3012 includes one first normal light emitting strip 3014 extending in the row direction, the second normal light emitting part 3022 includes two second normal light emitting strips 3024 extending in the row direction, the third normal light emitting part 3032 includes three third normal light emitting strips 3034 extending in the row direction, the two second normal light emitting strips 3024 and the two third normal light emitting strips 3034 are aligned with each other in the row direction and form two first normal light emitting sub-rows, the first normal light emitting strip 3014 and the third normal light emitting strip 3034 are aligned with each other in the row direction and form a second normal light emitting sub-row, the first normal light emitting strip 3014 and the second normal light emitting strip 3024 are located in one column, and the third normal light emitting strip 3034 is located in another column.
[0091] As shown in FIG. 6, compared with FIG. 5, the segmentation and arrangement of the privacy light-emitting part 321 remain unchanged, and will not be repeated here. The normal light-emitting part 322 can be further segmented. The first normal light-emitting part 3012 includes one row and two columns of first normal light-emitting units 3016, the second normal light-emitting part 3022 includes two rows and two columns of second normal light-emitting units 3026, the two columns of first normal light-emitting units 3016 and the two columns of second normal light-emitting units 3026 are aligned with each other, the third normal light-emitting part 3032 includes three rows and two columns of third normal light-emitting units 3036, the two rows of second normal light-emitting units 3026 and the two rows of third normal light-emitting units 3036 form two first normal sub-light-emitting rows, and the row of first normal light-emitting units 3016 and the row of third normal light-emitting units 3036 form a second normal sub-light-emitting row.
[0092] As shown in FIG. 7, in other embodiments, the first privacy light-emitting part 3011, the second privacy light-emitting part 3021 and the third privacy light-emitting part 3031 in FIGS. 5 and 6 can be provided in the following form: the first privacy light-emitting part 3011 includes one first privacy light-emitting strip 3013 extending in the row direction, the second privacy light-emitting part 3021 includes two second privacy light-emitting strips 3023 extending in the row direction, the third privacy light-emitting part 3031 includes three third privacy light-emitting strips 3033 extending in the row direction, the two second privacy light-emitting strips 3023 and the two third privacy light-emitting strips 3033 are aligned with each other in the row direction and form two first privacy sub-light-emitting rows, the first privacy light-emitting strip 3013 and the third privacy light-emitting strip 3033 are aligned with each other in the row direction and form a second privacy sub-light-emitting row, and the first privacy light-emitting strip 3013 and the second privacy light-emitting strip 3023 are located in one column, and the third privacy light-emitting strip 3033 is located in another column.
[0093] The first privacy light-emitting unit 3015, the second privacy light-emitting unit 3025 and the third privacy light-emitting unit 3035 are the same in shape and size, which are circular or regular polygons. The first privacy light-emitting unit 3015, the second privacy light-emitting unit 3025 and the third privacy light-emitting unit 3035 are provided in two columns, and the first privacy light-emitting unit 3015 is provided in one row, the second privacy light-emitting unit 3025 is provided in two rows, and the third privacy light-emitting unit 3035 is provided in three rows. Therefore, when the privacy light-emitting part 321 includes a plurality of privacy light-emitting units 32, the area ratio of the first privacy light-emitting part 3011, the area of the second privacy light-emitting part 3021 and the area of the third privacy light-emitting part 3031 is 1:2:3. When the normal light-emitting part 322 includes a plurality of normal light-emitting units 32, it is known that the segmentation and distribution of the normal light-emitting part 322 are completely the same as those of the privacy light-emitting part 321, and therefore the area ratio of the first normal light-emitting part 3012, the area of the second normal light-emitting part 3022 and the area of the third normal light-emitting part 3032 is 1:2:3.
[0094] In FIGS. 5-7, the first, second, and third anti-peep light bars 3013, 3023, and 3033 have the same size, the first anti-peep light bar 3013 has one number, the second anti-peep light bar has two numbers, and the third anti-peep light bar 3033 has three numbers. Therefore, when the anti-peep light-emitting part 321 is arranged as an anti-peep light bar, the ratio of the area of the first anti-peep light-emitting part 3011, the area of the second anti-peep light-emitting part 3021, and the area of the third anti-peep light-emitting part 3031 is 1:2:3. When the normal light-emitting part 322 is arranged as a normal light bar, it is known that the cutting and distribution of the normal light-emitting part 322 is exactly the same as that of the anti-peep light-emitting part 321. Therefore, the ratio of the area of the first normal light-emitting part 3012, the area of the second normal light-emitting part 3022, and the area of the third normal light-emitting part 3032 is also 1:2:3.
[0095] As shown in FIGS. 8-10, the display panel of the present disclosure can further comprise an encapsulation layer 4 arranged on the side of the light-emitting layer 3 away from the substrate 1, so as to cover the light-emitting layer 3 and prevent water and oxygen from corroding. The encapsulation layer 4 can be a single layer or a multi-layer structure, and the material of the encapsulation layer 4 can include organic or inorganic materials, which are not particularly limited herein. In the present embodiment, the encapsulation layer 4 can include a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer, the first inorganic encapsulation layer is arranged on the side of the light-emitting layer 3 away from the substrate 1, the organic encapsulation layer is arranged on the side of the first inorganic encapsulation layer away from the substrate 1, and the second inorganic encapsulation layer is arranged on the side of the organic encapsulation layer away from the substrate 1.
[0096] The display panel can further comprise a light-blocking layer 5, which can be directly formed on the second inorganic encapsulation layer, and the distance between the side of the light-blocking layer 5 close to the substrate 1 and the side of the light-emitting layer 3 away from the substrate 1 is 6-12 μm. The orthographic projection of the light-blocking layer 5 on the substrate 1 overlaps the orthographic projection of the anti-peep light-emitting row 330 on the substrate 1, and does not overlap the orthographic projection of the anti-peep light-emitting part 321 on the substrate 1. The light-blocking layer 5 can be a black filter layer, and a plurality of first openings 51 are arranged on the light-blocking layer 5, the first openings 51 include a plurality of sub-first openings 51, and the orthographic projection of the sub-first openings 51 on the substrate 1 overlaps the orthographic projection of the anti-peep light-emitting part 321 on the substrate 1. The light of the anti-peep light-emitting part 321 is emitted from the sub-first openings 51, and the part of the light-blocking layer 5 outside the periphery of the sub-first openings 51 will block the light emitted at a large angle. The light emitted by the normal light-emitting part 322 directly passes through the encapsulation layer 4 and is emitted, so the light-emitting angle of the sub-first openings 51 is smaller than that of the normal light-emitting part 322.
[0097] When the pixel circuit 21 drives the anti-peep light-emitting part 321 to emit light alone, the light-emitting angle of the display panel is small, and the displayed content can be seen only at a small viewing angle. At this time, the display panel is in an anti-peep mode. When the pixel circuit 21 drives the anti-peep light-emitting part 321 and the normal light-emitting part 322 to emit light at the same time, the displayed content can be seen at a large viewing angle. At this time, the display panel is in a normal mode.
[0098] The display panel can further include a protective layer 61 and a touch layer group 6. The protective layer 61 is arranged on the side of the light-shielding layer 5 away from the substrate 1. The touch layer group 6 is arranged on the side of the protective layer 61 away from the substrate 1. The touch layer group 6 can be a mutual capacitance touch control. The touch layer group 6 includes a first touch control layer 62, a second touch control layer 63, a first passivation layer 64, and a second passivation layer 65. The first touch control layer 62 is arranged on the side of the encapsulation layer 4 away from the substrate 1. The first touch control layer 62 has the first passivation layer 64 arranged on the side of the first touch control layer 62 away from the substrate 1. The first passivation layer 64 has the second touch control layer 63 arranged on the side of the first passivation layer 64 away from the substrate 1. The second touch control layer 63 has the second passivation layer 65 arranged on the side of the second touch control layer 63 away from the substrate 1.
[0099] The first touch control layer 62 can be a metal mesh layer (MM), and the second touch control layer 63 can be a bridge metal layer (BM). Alternatively, the first touch control layer 62 can be a bridge metal layer BM, and the second touch control layer 63 can be a metal mesh layer MM. Hereinafter, the first touch control layer 62 is taken as a bridge metal layer BM, and the second touch control layer 63 is taken as a metal mesh layer MM. The second touch control layer 63 can be divided into a touch drive metal mesh 631 and a touch sensing metal mesh 632 in the horizontal and vertical directions. One of the touch sensing metal mesh 632 and the touch drive metal mesh 631 is connected to each other, and the other is connected through the second touch control layer 63.
[0100] As shown in FIGS. 9 and 10, in order to ensure the anti-peep effect (to ensure that the brightness of the light rays outside the anti-peep angle is attenuated by more than 99%, and to avoid light leakage outside the anti-peep angle), the touch layer group 6 includes a third touch control layer 66 and a third passivation layer 67. The third touch control layer 66 is arranged on the side of the protective layer 61 away from the substrate 1. The third passivation layer 67 is arranged on the side of the third touch control layer 66 away from the substrate 1. The third touch control layer 66 serves as a touch shielding layer. The third touch control layer 66 has a projection on the substrate 1 that overlaps with a projection of the anti-peep light-emitting row 330 on the substrate 1. The third touch control layer 66 and the anti-peep light-emitting part 321 do not overlap in the projection on the substrate 1.
[0101] The third touch control layer 66 is provided with a touch opening 601, a projection of the sub-first opening 51 on the substrate 1 is located in a projection of the touch opening 601 on the substrate 1, and an area of the touch opening 601 is greater than an area of the sub-first opening 51. A distance between an edge of the sub-first opening 51 and an edge of the touch opening 601 is 1-3 μm. The third touch control layer 66 is connected to a reference signal with constant potential, for example, the third touch control layer 66 can be grounded, so as to reduce interference between display and touch when a signal changes.
[0102] As shown in FIG. 11, because the pixel unit 300 is cut to realize the switch between the privacy mode and the normal mode, the light emitting area of the light emitting layer 3 is reduced, and therefore the light path regulation layer 7 is added on a side of the light emitting layer 3 away from the substrate 1, and can be arranged on a side of the second passivation layer 65 away from the substrate 1. A left side of a straight line h is a privacy pixel area, and a right side of the straight line h is a normal pixel area. The light path regulation layer 7 includes a privacy light path regulation layer 71 and a normal light path regulation layer 72. The privacy light path regulation layer 71 is arranged in the privacy pixel area, and the normal light path regulation layer 72 is arranged in the normal pixel area, so as to improve brightness of the privacy pixel unit 3001 and brightness of the normal pixel unit 3002. A distance between a side of the light path regulation layer 7 close to the substrate 1 and the light emitting layer 3 away from the substrate 1 is 12-20 μm.
[0103] A projection of the privacy light path regulation layer 71 on the substrate 1 covers a projection of the privacy light emitting unit 321 on the substrate 1, a projection of the first opening 51 on the substrate 1, and a projection of the touch opening 601 on the substrate 1. A projection of the normal light path regulation layer 72 on the substrate 1 covers a projection of the normal light emitting unit 322 on the substrate 1. The privacy light path regulation layer 71 is used to reduce an optical exit angle of the privacy light emitting unit 321, and the normal light path regulation layer 72 is used to increase an optical exit angle of the normal light emitting unit 322.
[0104] As shown in FIG. 12, the privacy light path regulation layer 71 includes a first sub light path regulation layer 711 and a second sub light path regulation layer 712 arranged in sequence in a direction away from the substrate substrate 1, the refractive index of the first sub light path regulation layer 711 is greater than the refractive index of the second sub light path regulation layer 712, the first sub light path regulation layer 711 includes a plurality of first sub lenses 7111, and the orthographic projection of the privacy light emitting part 321 on the substrate substrate 1 is within the orthographic projection of the first sub lens 7111 on the substrate substrate 1. The angle between the outgoing light of the privacy light emitting part 321 and the normal (the first privacy incidence angle) is θ1, after refraction through the interface between the first sub light path regulation layer 711 and the second sub light path regulation layer 712, the angle between the first privacy refraction light and the normal (the first privacy refraction angle) becomes θ2, θ2> θ1, because the interface between the first sub light path regulation layer 711 and the second sub light path regulation layer 712 is a curved surface, the first privacy refraction light is inwardly converged compared with the privacy outgoing light, so that the viewing angle of the display panel in the privacy mode becomes smaller.
[0105] The display panel further includes a normal light path regulation layer 72, the normal light path regulation layer 72 includes a third sub light path regulation layer 721 and a fourth sub light path regulation layer 722 arranged in sequence in a direction away from the substrate substrate 1, the refractive index of the third sub light path regulation layer 721 is greater than the refractive index of the fourth sub light path regulation layer 722, the fourth sub light path regulation layer 722 includes a plurality of second sub lenses 7221, and the orthographic projection of the normal light emitting part 322 on the substrate substrate 1 is within the orthographic projection of the second sub lens 7221 on the substrate substrate 1. The angle between the outgoing light of the normal light emitting part 322 and the normal (the first normal incidence angle) is θ3, after refraction through the interface between the third sub light path regulation layer 721 and the fourth sub light path regulation layer 722, the angle between the first normal refraction light and the normal (the first normal refraction angle) becomes θ4, θ4> θ3, because the interface between the first sub light path regulation layer 711 and the second sub light path regulation layer 712 is a plane, the first normal refraction light is outwardly divergent compared with the normal outgoing light, so that the viewing angle of the display panel in the normal mode becomes larger.
[0106] In order to improve the uniformity of display in the privacy mode and the normal mode, the privacy light path regulation layer 71 further comprises a fifth sub-light path regulation layer 713, which is arranged on the side of the second sub-light path regulation layer 712 away from the substrate substrate 1, and the refractive index of the fifth sub-light path regulation layer 713 is greater than that of the second sub-light path regulation layer 712. The angle between the first privacy refracted light of the second sub-light path regulation layer 712 and the normal (the second privacy incident angle) is θ5, and after refraction at the interface between the second sub-light path regulation layer 712 and the fifth sub-light path regulation layer 713, the angle between the second privacy refracted light and the normal (the second privacy refracted angle) becomes θ6, θ6< θ5. Because the interface between the first sub-light path regulation layer 711 and the second sub-light path regulation layer 712 is a plane, the second privacy refracted light is inwardly converged compared with the first privacy refracted light, so that the viewing angle of the display panel in the privacy mode is further reduced, and the privacy effect is further improved.
[0107] In order to improve the uniformity of display in the normal mode, the normal light path regulation layer 72 further comprises a sixth sub-light path regulation layer 723, which is arranged on the side of the fourth sub-light path regulation layer 722 close to the substrate substrate 1, and the refractive index of the sixth sub-light path regulation layer 723 is greater than that of the fourth sub-light path regulation layer 722. The angle between the first normal refracted light of the fourth sub-light path regulation layer 722 and the normal (the second normal incident angle) is θ7, and after refraction at the interface between the fourth sub-light path regulation layer 722 and the sixth sub-light path regulation layer 723, the angle between the second normal refracted light and the normal (the second normal refracted angle) becomes θ8, θ8< θ7. Because the interface between the sixth sub-light path regulation layer 723 and the fourth sub-light path regulation layer 722 is a curved surface, the second normal refracted light is slightly outwardly expanded compared with the first normal refracted light, so that the display in the normal mode is more uniform.
[0108] In order to facilitate the simplification of the manufacturing process of the privacy light path regulation layer 71 and the normal light path regulation layer 72, the first sub-light path regulation layer 711 and the third sub-light path regulation layer 721 are arranged in the same layer and the same material, which can be defined as a first refractive layer. The second sub-light path regulation layer 712 and the fourth sub-light path regulation layer 722 are arranged in the same layer and the same material, which can be defined as a second refractive layer. The fifth sub-light path regulation layer 713 and the sixth sub-light path regulation layer 723 are arranged in the same layer and the same material, which can be defined as a third refractive layer. The refractive index of the first refractive layer can be greater than 1.65, the refractive index of the second refractive layer can be 1.45-1.65, and the refractive index of the third refractive layer can be greater than 1.65. The thickness of the first refractive layer is less than or equal to 6 microns, and the thickness of the second refractive layer is less than or equal to 6 microns.
[0109] Referring to FIGS. 8-12, when the privacy light emitting part 321 includes the first privacy light emitting unit 3015, the second privacy light emitting unit 3025, and the third privacy light emitting unit 3035, the first sub-lens 7111 can be a semi-spherical lens, and when the normal light emitting part 322 includes the first normal light emitting strip 3014, the second normal light emitting strip 3024, and the third normal light emitting strip 3034, the second sub-lens 7221 can be a circular arc columnar lens. Referring to FIG. 6, when the normal light emitting part 322 includes the first normal light emitting unit 3016, the second normal light emitting unit 3026, and the third normal light emitting unit 3036, the second sub-lens 7221 can also be a semi-spherical lens.
[0110] The display panel further includes a polarizer layer 8 and a cover plate 9. The polarizer layer 8 is disposed on the side of the lens layer away from the substrate 1, and the cover plate 9 is disposed on the side of the polarizer layer 8 away from the substrate 1. Because the polarizer layer 8 is relatively thick, a color filter layer can be used instead of the polarizer layer 8. As shown in FIG. 13, the same color filter units fill the first opening 51 and the second opening 52. The color filter units include a normal filter part 54 and a privacy filter part 53. The privacy filter part 53 is disposed in the first opening 51, and the normal filter part 54 is disposed in the second opening 52. The color of the privacy filter part 53 is the same as that of the corresponding privacy light emitting part 321, and the color of the normal filter part 54 is the same as that of the corresponding normal light emitting part 322.
[0111] For example, referring to FIG. 6, the privacy filter part 53 can be divided into a first sub-privacy filter part 53, a second sub-privacy filter part 53, and a third sub-privacy filter part 53 according to color. The orthographic projection of the first sub-privacy filter part 53 on the substrate 1 covers the orthographic projection of the first privacy light emitting unit 3015 on the substrate 1. The orthographic projection of the second sub-privacy filter part 53 on the substrate 1 covers the orthographic projection of the second privacy light emitting unit 3025 on the substrate 1. The orthographic projection of the third sub-privacy filter part 53 on the substrate 1 covers the orthographic projection of the third privacy light emitting unit 3035 on the substrate 1. The normal filter part 54 can be divided into a first sub-normal filter part 54, a second sub-normal filter part 54, and a third sub-normal filter part 54 according to color. The orthographic projection of the first sub-normal filter part 54 on the substrate 1 covers the orthographic projection of the first normal light emitting unit 3016 on the substrate 1. The orthographic projection of the second sub-normal filter part 54 on the substrate 1 covers the orthographic projection of the second normal light emitting unit 3026 on the substrate 1. The orthographic projection of the third sub-normal filter part 54 on the substrate 1 covers the orthographic projection of the third normal light emitting unit 3036 on the substrate 1.
[0112] As shown in FIG. 14, in order to reduce the mask plate and simplify the manufacturing process of the touch layer, the first touch control layer 62 can be directly used as the touch shielding layer, the first touch control layer 62 includes a plurality of first touch units, a touch opening 601 is formed between two adjacent first touch units, the orthographic projection of the sub-first opening 51 on the substrate 1 is located in the orthographic projection of the touch opening 601 on the substrate 1, and the area of the touch opening 601 is greater than the area of the sub-first opening 51. The width of the first touch unit is only increased to reduce the size of the touch opening 601, and there is no need to separately set the third touch control layer 66 and the third passivation layer 67.
[0113] It should be noted that the light shielding layer 5 above can not only use the black filter layer in FIGS. 10-14, but the light shielding layer 5 can also use a metal light shielding layer 5 as shown in FIG. 15.
[0114] As shown in FIG. 16, the pixel circuit 21 can be a 9T1C structure, that is, it can have 7 transistors and 1 capacitor, that is, a first reset transistor T1, a compensation transistor T2, a driving transistor T3, a writing transistor T4, a first light-emitting control transistor T5, a second light-emitting control transistor T6, a second reset transistor T7, a third light-emitting control transistor T8, a fourth light-emitting control transistor T9, and a storage capacitor Cst.
[0115] As shown in FIG. 16, the first electrode of the first reset transistor T1 is connected with the first reset signal line VIL1 for receiving the first reset signal Vinit1, and the second electrode is connected with the gate 213 of the driving transistor T3 and the first plate of the storage capacitor Cst.
[0116] The first electrode of the compensation transistor T2 is connected with the second electrode of the driving transistor T3, and the second electrode is connected with the gate 213 of the driving transistor T3.
[0117] The first electrode of the writing transistor T4 is connected with the data line DAL for receiving the data signal DA, and the second electrode is connected with the first electrode of the driving transistor T3.
[0118] The first electrode of the first light-emitting control transistor T5 and the second plate of the storage capacitor Cst are connected with the power line VDL for receiving the first power signal VDD, and the second electrode is connected with the first electrode of the driving transistor T3.
[0119] The first electrode of the second light-emitting control transistor T6 is connected with the second electrode of the driving transistor T3, and the second electrodes of the third light-emitting control transistor T8 and the fourth light-emitting control transistor T9 are connected with the normal pixel electrode 3221 of the normal light-emitting part 322 and the anti-peep pixel electrode 3211 of the anti-peep light-emitting part 321, respectively. The normal common electrode 3223 of the normal light-emitting part 322 and the anti-peep common electrode 3213 of the anti-peep light-emitting part 321 can receive a common power signal VSS.
[0120] The first electrode of the second reset transistor T7 is connected with the second reset signal line VIL2 for receiving a second reset signal Vinit2, and the second electrode is connected with the second electrode of the third light-emitting control transistor T8.
[0121] Meanwhile, in order to control the on and off of each transistor, the gate 213 of the first reset transistor T1 is connected with the first reset control line REL1 for inputting a first reset control signal RE1, and the gate 213 of the second reset transistor T7 is connected with the second reset control line REL2 for inputting a second reset control signal RE2. The gates 213 of the compensation transistor T2 and the write transistor T4 are connected with the scan line GL for inputting a scan signal G1 and a scan signal G2, respectively. The gates 213 of the first light-emitting control transistor T5 and the second light-emitting control transistor T6 are connected with the light-emitting control line EML1 for inputting a first light-emitting control signal EM1. The gate 213 of the third light-emitting control transistor T8 is connected with the light-emitting control line EML2 for inputting a second light-emitting control signal EM2. The gate 213 of the fourth light-emitting control transistor T9 is connected with the light-emitting control line EML3 for inputting a second light-emitting control signal EM3.
[0122] The pixel circuit 21 can drive the connected normal light-emitting part 322 and anti-peep light-emitting part 321 to emit light in response to the signals provided by the connected signal terminals.
[0123] In addition, according to the characteristics of the transistor, the transistor can be divided into N-type and P-type transistors. The embodiments of the present disclosure take the P-type transistor as an example. Based on the description and teaching of the implementation mode of the present disclosure, those skilled in the art can easily think of using N-type transistors in at least part of the pixel circuit 21 structure of the embodiments of the present disclosure, that is, using N-type transistors or a combination of N-type transistors and P-type transistors, without the need for creative labor, and therefore, these implementation modes are also within the protection scope of the embodiments of the present disclosure.
[0124] The present application provides a manufacturing method of a display panel. As shown in FIGS. 10, 17-24, the method comprises:
[0125] Step S10, forming the driving circuit layer 2 on the substrate 1.
[0126] Step S20, forming the light emitting layer 3 and the encapsulation layer 4 on the driving circuit layer 2 in sequence in the direction away from the substrate 1.
[0127] Step S30, forming the light shielding layer 5 and the protection layer 61 on the encapsulation layer 4 in sequence in the direction away from the substrate 1.
[0128] Step S40, forming the touch layer group 6 on the side of the protection layer 61 away from the substrate 1.
[0129] Step S50, forming the first refractive layer on the side of the protection layer 61 away from the substrate 1, and forming the first sub-lens 7111 and the third sub-optical path control layer 721 from the first refractive layer.
[0130] Step S60, forming the second refractive layer on the side of the first sub-lens 7111 and the third sub-optical path control layer 721 away from the substrate 1, and forming the second sub-optical path control layer 712 and the second sub-lens 7221 from the second refractive layer.
[0131] Step S70, forming the third refractive layer on the side of the second sub-optical path control layer 712 and the second sub-lens 7221 away from the substrate 1.
[0132] Step S80, forming the polarizing layer and the cover plate 9 on the third refractive layer in sequence in the direction away from the substrate 1.
[0133] The manufacturing method of the display panel will be described below in conjunction with the display panel in FIG. 10.
[0134] The display panel is manufactured according to the general normal driving backplane process. First, the substrate 1 is formed, and the structure and material of the substrate 1 have been described in detail above, and will not be described again here. Then, the driving circuit layer 2 is manufactured on the substrate, and the specific process is as follows: forming the buffer layer 218 (Buffer), the patterned active layer 211 (p-si), the gate insulation layer 212 (GI), the gate 213 (Gate), the source 215 and the drain 216, and the planarization layer 217 (PLN) on the substrate 1 in sequence.
[0135] Then, the light-emitting layer 3 and the encapsulation layer 4 are formed on the planarization layer 217. First, the pixel electrode is formed on the planarization layer 217, the light-emitting layer 3 is formed on the side of the pixel electrode away from the substrate 1 by vacuum evaporation, and the common electrode is formed on the side of the light-emitting layer 3 away from the substrate 1. Finally, the encapsulation layer 4 is formed on the common electrode. First, the first inorganic encapsulation layer is deposited on the light-emitting layer 3, then the organic encapsulation layer is prepared on the first inorganic encapsulation layer, and finally the second inorganic encapsulation layer is formed on the organic encapsulation layer.
[0136] The first inorganic encapsulation layer has a protective area greater than the area of the display region. The organic encapsulation layer has a coverage area smaller than that of the first inorganic encapsulation layer, and the orthographic projection of the organic encapsulation layer on the substrate 1 covers at least an area greater than the orthographic projection of the common electrode on the substrate 1. The coverage area of the second inorganic encapsulation layer can be the same as or greater than that of the first inorganic encapsulation layer. The thickness of the organic encapsulation layer is between 4-10 μm, and the overall thickness of the encapsulation layer 4 is less than 12 μm.
[0137] The first and second inorganic encapsulation layers block water and oxygen, and the organic encapsulation layer serves to release stress and planarize. The first and second inorganic encapsulation layers are prepared by chemical vapor deposition or atomic layer deposition, and the materials can be silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, titanium oxide, etc., but are not limited thereto. The organic encapsulation layer is prepared by inkjet printing, screen printing, dispensing, etc.
[0138] The light-shielding layer 5 is formed on the encapsulation layer by coating. The light-shielding layer 5 can be a black filter layer or a metal light-shielding layer 5. A plurality of first sub-openings 51 are formed on the light-shielding layer 5 by exposure and development, and a protective layer 61 is formed on the side of the light-shielding layer 5 away from the substrate 1. The touch layer group 6 is formed on the side of the protective layer 61 away from the substrate 1. The third touch control layer 66 is formed on the peep-proof light-emitting row 330, and the third touch control layer 66 is patterned to form a plurality of touch openings 601. The third passivation layer 67 is formed on the side of the third touch control layer 66 away from the substrate 1. Then, the first touch control layer 62 is formed on the side of the third passivation layer 67 away from the substrate 1, the first passivation layer 64 is formed on the side of the first touch control layer 62 away from the substrate 1, the second touch control layer 63 is formed on the side of the first passivation layer 64 away from the substrate 1, and the second passivation layer 65 is formed on the side of the second touch control layer 63 away from the substrate 1.
[0139] The privacy light path regulation layer 71 and the normal light path regulation layer 72 are formed. A first refractive layer is formed on the side of the second passivation layer 65 away from the substrate 1, the first refractive layer is made of high refractive material with a refractive index greater than 1.65, the thickness of the first refractive layer is less than or equal to 6 μm, the first sub light path regulation layer 711 is patterned to form a plurality of first sub light path regulation portions, and the first sub light path regulation portions are heated to form a plurality of first sub lenses 7111 in a semi-spherical shape, the size of the first sub lenses 7111 is greater than the size of the touch opening 601 and the first sub opening 51. The third sub light path regulation layer 721 is not patterned.
[0140] A second refractive layer is formed on the side of the first refractive layer away from the substrate 1, the second refractive layer is made of high refractive material with a refractive index greater than 1.65, the thickness of the second refractive layer is less than or equal to 6 μm, the fourth sub light path regulation layer 722 is patterned to form a plurality of fourth sub light path regulation portions, and the fourth sub light path regulation portions are heated to form a plurality of second sub lenses 7221 in a semi-spherical shape, the size of the second sub lenses 7221 is greater than the size of the normal light emitting portion 322. The second sub light path regulation layer 712 is not patterned. Finally, a third refractive layer is formed on the side of the second refractive layer away from the substrate 1, the third refractive layer is made of high refractive material with a refractive index greater than 1.65, the part of the third refractive layer belonging to the privacy light emitting portion 321 is the fifth sub light path regulation layer 713, and the part of the third refractive layer belonging to the normal light emitting portion 322 is the sixth sub light path regulation layer 723.
[0141] Finally, a polarizing layer 8 is formed on the side of the third refractive layer away from the substrate 1, and a cover plate 9 is formed on the side of the polarizing layer 8 away from the substrate 1.
[0142] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the features of the application as set forth herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.
Claims
1. A display panel, wherein: include: substrate; a light-emitting layer disposed on one side of the base substrate, the light-emitting layer comprising a pixel definition layer and light-emitting units of at least three different colors, the pixel definition layer being provided with a plurality of pixel openings, the light-emitting units of each color comprising an anti-peeping light-emitting portion and a normal light-emitting portion, the anti-peeping light-emitting portion and the normal light-emitting portion being respectively disposed within different pixel openings, the normal light-emitting portions being arranged in a normal light-emitting row, the anti-peeping light-emitting portions being arranged in an anti-peeping light-emitting row, and the anti-peeping light-emitting rows and the normal light-emitting rows being alternately arranged along a column direction; a driving circuit layer, provided between the base substrate and the light-emitting layer, the driving circuit layer including a pixel circuit, the pixel circuit being used to drive the anti-peeping light-emitting portion to emit light and control the normal light-emitting portion not to emit light, or to drive the anti-peeping light-emitting portion and the normal light-emitting portion to emit light simultaneously, or to drive the normal light-emitting portion to emit light and control the anti-peeping light-emitting portion not to emit light; A light-shielding layer is provided on a side of the light-emitting layer away from the base substrate, the orthographic projection of the light-shielding layer on the base substrate overlaps with the orthographic projection of the anti-peep light-emitting line on the base substrate, the light-shielding layer is provided with a first opening, the light of the anti-peep light-emitting portion is emitted from the first opening, and the light emission angle of the first opening is smaller than the light emission angle of the normal light-emitting portion.
2. The display panel according to claim 1, wherein The at least three light-emitting units of different colors include a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, the first light-emitting unit is a red light-emitting unit, the second light-emitting unit is a green light-emitting unit, and the third light-emitting unit is a blue light-emitting unit, the first light-emitting unit and the second light-emitting unit are located in one column, and the third light-emitting unit is located in another column, the normal light-emitting portion includes a first normal light-emitting portion, a second normal light-emitting portion and a third normal light-emitting portion, the anti-peeping light-emitting portion includes a first anti-peeping light-emitting portion, a second anti-peeping light-emitting portion and a third anti-peeping light-emitting portion, the first anti-peeping light-emitting portion and the second anti-peeping light-emitting portion are arranged in an anti-peeping light row, and the first normal light-emitting portion and the second normal light-emitting portion and the third normal light-emitting portion are arranged in a normal light row.
3. The display panel according to claim 2, wherein: The first normal light-emitting portion and the first anti-peeping light-emitting portion adjacent to each other along the column direction are symmetrical about a first straight line, the second normal light-emitting portion and the second anti-peeping light-emitting portion adjacent to each other along the column direction are symmetrical about a second straight line, the first straight line and the second straight line are respectively located at both ends of the third normal light-emitting portion along the column direction, and the third normal light-emitting portion and the third anti-peeping light-emitting portions on both sides thereof are respectively symmetrical about the first straight line and the second straight line.
4. The display panel according to claim 3, wherein: In the same normal light-emitting row, the first normal light-emitting portion and the second normal light-emitting portion are adjacent to each other along the column direction, and the first normal light-emitting portion and the second normal light-emitting portion are symmetrically arranged about the center line of the third normal light-emitting portion along the row direction. In the same anti-peeping light-emitting row, the first anti-peeping light-emitting portion and the second anti-peeping light-emitting portion are adjacent to each other along the column direction, and the first anti-peeping light-emitting portion and the second anti-peeping light-emitting portion are symmetrically arranged about the center line of the third anti-peeping light-emitting portion along the row direction.
5. The display panel according to claim 2, wherein: The first normal light-emitting portion includes multiple rows and columns of first normal light-emitting units, the second normal light-emitting portion includes multiple rows and columns of multiple second normal light-emitting units, the multiple columns of the first normal light-emitting units and the multiple columns of the second normal light-emitting units are aligned with each other, the third normal light-emitting portion includes multiple rows and columns of the third normal light-emitting units, the second normal light-emitting units and the third normal light-emitting units are arranged into a first normal sub-light-emitting row, and the first normal light-emitting units and the third normal light-emitting units are arranged into a second normal sub-light-emitting row. The display panel according to claim 2 , wherein: The first normal light-emitting portion includes a first normal light-emitting bar extending along the row direction, the second normal light-emitting portion includes a second normal light-emitting bar extending along the row direction, and the third normal light-emitting portion includes a third normal light-emitting bar extending along the row direction. The second normal light-emitting bar and the third normal light-emitting bar are arranged to form a first normal sub-light-emitting row, and the first normal light-emitting bar and the third normal light-emitting bar are arranged to form a second normal sub-light-emitting row. The first normal light-emitting bar and the second normal light-emitting bar are located in one column, and the third normal light-emitting bar is located in another column.
7. The display panel according to claim 5 or 6, wherein: The first anti-peeping light-emitting portion includes multiple rows and columns of first anti-peeping light-emitting units, the second anti-peeping light-emitting portion includes multiple rows and columns of second anti-peeping light-emitting units, the multiple columns of the first anti-peeping light-emitting units and the multiple columns of the second anti-peeping light-emitting units are aligned with each other, the third anti-peeping light-emitting portion includes multiple rows and columns of third anti-peeping light-emitting units, the second anti-peeping light-emitting units and the third anti-peeping light-emitting units are arranged in two first anti-peeping sub-light-emitting rows, and the first anti-peeping light-emitting units and the third anti-peeping light-emitting units are arranged in a second anti-peeping sub-light-emitting row.
8. The display panel according to claim 5 or 6, wherein: The first anti-peeping light-emitting portion includes a first anti-peeping light-emitting bar extending along the row direction, the second anti-peeping light-emitting portion includes a second anti-peeping light-emitting bar extending along the row direction, and the third anti-peeping light-emitting portion includes a third anti-peeping light-emitting bar extending along the row direction. The second anti-peeping light-emitting bar and the third anti-peeping light-emitting bar are arranged to form a first anti-peeping sub-lighting row, and the first anti-peeping light-emitting bar and the third anti-peeping light-emitting bar are arranged to form a second anti-peeping sub-lighting row. The first anti-peeping light-emitting bar and the second anti-peeping light-emitting bar are located in one column, and the third anti-peeping light-emitting bar is located in another column.
9. The display panel according to claim 7, wherein: When the first normal light-emitting portion includes multiple rows and columns of first normal light-emitting units, the second normal light-emitting portion includes multiple rows and columns of multiple second normal light-emitting units, and the third normal light-emitting portion includes multiple rows and columns of third normal light-emitting units, the shapes of the first anti-peeping light-emitting unit, the second anti-peeping light-emitting unit, the third anti-peeping light-emitting unit, the first normal light-emitting unit, the second normal light-emitting unit, and the third normal light-emitting unit are circular or regular polygonal.
10. The display panel according to claim 7, wherein: The ratio of the area of the first normal light-emitting portion, the area of the second normal light-emitting portion, and the area of the third normal light-emitting portion is 1:2:3, and the ratio of the area of the first anti-peeping light-emitting portion, the area of the second anti-peeping light-emitting portion, and the area of the third anti-peeping light-emitting portion is 1:2:
3.
11. The display panel according to claim 1, wherein: The orthographic projection of the light-shielding layer on the base substrate also overlaps with the orthographic projection of the normal light-emitting row on the base substrate. The light-shielding layer is also provided with a second opening, and the light of the normal light-emitting portion is emitted from the second opening. The light-emitting angle of the second opening is greater than the light-emitting angle of the first opening.
12. The display panel according to claim 11, wherein: The display panel also includes a filter unit, which includes a normal filter portion and an anti-peep filter portion. The anti-peep filter portion is arranged in the first opening, and the normal filter portion is arranged in the second opening. The anti-peep filter portion has the same color as the corresponding anti-peep luminous portion, and the normal filter portion has the same color as the corresponding normal luminous portion.
13. The display panel according to claim 7, wherein: The first opening includes a plurality of sub-first openings, and the orthographic projections of the sub-first openings on the base substrate overlap with the orthographic projections of the anti-peeping light-emitting unit on the base substrate.
14. The display panel according to claim 13, wherein: The display panel also includes a protective layer and a touch layer group, the protective layer is arranged on the side of the light-shielding layer away from the base substrate, the touch layer group includes a first touch control layer and a second touch control layer, the first touch control layer is arranged on the side of the protective layer away from the base substrate, a first passivation layer is provided on the side of the first touch control layer away from the base substrate, the second touch control layer is arranged on the side of the first passivation layer away from the base substrate, and a second passivation layer is provided on the side of the second touch control layer away from the base substrate.
15. The display panel according to claim 14, wherein: The touch layer group also includes a third touch control layer and a third passivation layer. The third touch control layer and the third passivation layer are sequentially arranged between the protective layer and the first touch control layer in a direction away from the base substrate. The orthographic projection of the third touch control layer on the base substrate overlaps with the orthographic projection of the anti-peeping luminous line on the base substrate. The third touch control layer is provided with a touch opening. The orthographic projection of the sub-first opening on the base substrate is located within the orthographic projection of the touch opening on the base substrate. The area of the touch opening is larger than the area of the sub-first opening.
16. The display panel according to claim 15, wherein: The third touch control layer is connected to a reference signal with a constant potential.
17. The display panel according to claim 14, wherein: The second touch control layer includes multiple first touch units, a touch opening is formed between two adjacent first touch units, the orthographic projection of the sub-first opening on the base substrate is located within the orthographic projection of the touch opening on the base substrate, and the area of the touch opening is larger than the area of the sub-first opening.
18. The display panel according to claim 15 or 17, wherein: The display panel also includes an anti-peeping light path regulation layer and a normal light path regulation layer, and the anti-peeping light path regulation layer and the normal light path regulation layer are arranged on the side of the touch layer group away from the base substrate. The orthographic projection of the anti-peeping light path regulation layer on the base substrate covers the orthographic projection of the anti-peeping light emitting part on the base substrate, and the orthographic projection of the normal light path regulation layer on the base substrate covers the orthographic projection of the normal light emitting part on the base substrate. The anti-peeping light path regulation layer is used to reduce the optical emission angle of the anti-peeping light emitting part, and the normal light path regulation layer is used to increase the optical emission angle of the anti-peeping light emitting part.
19. The display panel according to claim 18, wherein: The anti-peep light path regulation layer includes a first sub-light path regulation layer and a second sub-light path regulation layer arranged in sequence in a direction away from the base substrate, the refractive index of the first sub-light path regulation layer is greater than the refractive index of the second sub-light path regulation layer, the first sub-light path regulation layer includes a plurality of first sub-lenses, and the orthographic projection of the anti-peep light emitting portion on the base substrate is within the orthographic projection of the first sub-lens on the base substrate.
20. The display panel according to claim 19, wherein The normal light path regulation layer includes a third sub-light path regulation layer and a fourth sub-light path regulation layer arranged in sequence in a direction away from the base substrate, the refractive index of the third sub-light path regulation layer is greater than the refractive index of the fourth sub-light path regulation layer, the fourth sub-light path regulation layer includes a plurality of second sub-lenses, and the orthographic projection of the normal light-emitting portion on the base substrate is within the orthographic projection of the second sub-lens on the base substrate.
21. The display panel according to claim 20, wherein: The anti-peep light path regulation layer further includes a fifth sub-light path regulation layer, which is arranged on a side of the second sub-light path regulation layer away from the base substrate, and the refractive index of the fifth sub-light path regulation layer is greater than the refractive index of the second sub-light path regulation layer.
22. The display panel according to claim 21, wherein: The normal light path regulation layer further includes a sixth sub-light path regulation layer, which is arranged on a side of the fourth sub-light path regulation layer close to the base substrate, and the refractive index of the sixth sub-light path regulation layer is greater than the refractive index of the fourth sub-light path regulation layer.
23. The display panel according to claim 22, wherein: The first sub-light path regulation layer and the third sub-light path regulation layer are provided in the same layer and the same material, the second sub-light path regulation layer and the fourth sub-light path regulation layer are provided in the same layer and the same material, and the fifth sub-light path regulation layer and the sixth sub-light path regulation layer are provided in the same layer and the same material.
24. The display panel according to claim 20, wherein: When the anti-peeping light-emitting portion includes a first anti-peeping light-emitting unit, a second anti-peeping light-emitting unit, and a third anti-peeping light-emitting unit, the first sub-lens is a hemispherical lens; when the normal light-emitting portion includes a first normal light-emitting bar, a second normal light-emitting bar, and a third normal light-emitting bar, the second sub-lens is an arc cylindrical lens.
25. The display panel according to claim 24, wherein: The orthographic projection of the touch opening on the base substrate is located within the orthographic projection of the first sub-lens on the base substrate.
26. The display panel according to claim 20, wherein: The display panel further includes a polarizer layer, which is arranged on a side of the anti-peep light path regulating layer and the normal light path regulating layer away from the base substrate.
27. The display panel according to claim 1, wherein: The display panel further includes an encapsulation layer, which is disposed on a side of the light-emitting layer away from the base substrate, and the light-shielding layer is disposed on a side of the encapsulation layer away from the base substrate.
28. The display panel according to claim 27, wherein: The light shielding layer is a black filter layer or a metal light shielding layer.
29. The display panel according to claim 1, wherein The pixel circuit includes a first reset transistor, a compensation transistor, a driving transistor, a write transistor, a first light emission control transistor, a second light emission control transistor, a third light emission control transistor, a fourth light emission control transistor, a second reset transistor and a storage capacitor; The first electrode of the first reset transistor is used to receive a first reset signal, and the second electrode is connected to the gate of the driving transistor and the first electrode plate of the storage capacitor; The first electrode of the compensation transistor is connected to the second electrode of the driving transistor, and the second electrode is connected to the gate of the driving transistor; the compensation transistor has two channels connected in series; The first electrode of the write transistor is connected to a data line, and the second electrode is connected to the first electrode of the drive transistor; The first electrode of the first light emitting control transistor and the second electrode plate of the storage capacitor are connected to a power line, and the second electrode is connected to the first electrode of the driving transistor; The first electrode of the second light emitting control transistor is connected to the second electrode of the driving transistor, and the second electrode is connected to the first electrode of the third light emitting control transistor and the first electrode of the fourth light emitting control transistor respectively; A first electrode of the second reset transistor is connected to a second reset signal line for receiving a second reset signal, and a second electrode is connected to a second electrode of the third light emitting control transistor; The second electrode of the third light emitting control transistor is connected to the normal pixel electrode of the normal light emitting portion; The second electrode of the fourth light emitting control transistor is connected to the anti-peeping pixel electrode of the anti-peeping light emitting portion.
30. A display device, wherein: A display panel comprising any one of claims 1 to 29.
Citation Information
Patent Citations
Display panel, control method thereof and display equipment
CN116156940A
Display panel, preparation method thereof and display device
CN117177603A
Display panel and display device
CN117580393A
Display panel and display device
CN220368984U
Optical path control filter and image display unit including the same
JP2013068855A