CN116709824A - Display panel and display device - Google Patents
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- CN116709824A CN116709824A CN202310362112.0A CN202310362112A CN116709824A CN 116709824 A CN116709824 A CN 116709824A CN 202310362112 A CN202310362112 A CN 202310362112A CN 116709824 A CN116709824 A CN 116709824A
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- 238000005538 encapsulation Methods 0.000 claims description 12
- 239000003086 colorant Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 208000008918 voyeurism Diseases 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims 4
- 238000002955 isolation Methods 0.000 description 12
- 230000004888 barrier function Effects 0.000 description 6
- 230000002265 prevention Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000144985 peep Species 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application relates to a display panel and a display device, wherein the display panel comprises a pixel defining layer and a plurality of display light-emitting units, wherein the pixel defining layer is arranged on a substrate, the display light-emitting units are arranged in an array, the pixel defining layer is provided with a plurality of pixel openings which are arranged at intervals and a pixel defining part which is positioned between the adjacent pixel openings, and the display light-emitting units are positioned in the pixel openings in a one-to-one correspondence manner; the display panel further comprises a light shielding layer, the light shielding layer is arranged on one side, far away from the substrate, of the pixel defining layer, and the light shielding layer is provided with a plurality of display light holes and at least one peep-proof light hole which are distributed at intervals; wherein, the plurality of display light holes are arranged opposite to the plurality of pixel openings; the orthographic projection of the peep-proof light hole on the substrate is positioned in the orthographic projection of the pixel defining part on the substrate, and the light rays emitted by the display light emitting units in the adjacent pixel openings can be emitted through the peep-proof light hole. The display panel and the display device of the scheme can realize the peep-proof function without the peep-proof film.
Description
Technical Field
The application belongs to the technical field of display equipment, and particularly relates to a display panel and a display device.
Background
With popularization and application of display technology, display screens with peep-proof function are increasingly demanded by the public. However, the current peeping prevention mode of the OLED (organic light emitting diode) display panel in the market is to externally attach a peeping prevention film, and the display panel does not have the peeping prevention function.
Disclosure of Invention
The application aims to provide a display panel and a display device, which can realize a peep-proof function without a peep-proof film.
The first aspect of the present application discloses a display panel, comprising: the display device comprises a substrate, a pixel defining layer and a plurality of display light-emitting units, wherein the pixel defining layer is arranged on the substrate and is provided with a plurality of pixel openings which are arranged at intervals and pixel defining parts which are positioned between the adjacent pixel openings, and the display light-emitting units are positioned in the pixel openings in a one-to-one correspondence manner; the display panel further comprises a light shielding layer, wherein the light shielding layer is arranged on one side, far away from the substrate, of the pixel defining layer, and the light shielding layer is provided with a plurality of display light holes and at least one peeping-proof light hole which are distributed at intervals; wherein, a plurality of the display light holes are arranged opposite to a plurality of the pixel openings; the orthographic projection of the peep-proof light hole on the substrate is positioned in the orthographic projection of the pixel defining part on the substrate, and the light rays emitted by the display light-emitting units in the adjacent pixel openings can be emitted through the peep-proof light hole.
In an exemplary embodiment of the present application, the orthographic projections of the peep-proof light holes on the substrate are spaced from the orthographic projections of the adjacent two pixel openings on the substrate, and the spacing between the orthographic projections of the adjacent two pixel openings on the substrate is equal.
In an exemplary embodiment of the present application, the display panel includes a plurality of color filter layers, and the plurality of color filter layers are disposed in the plurality of display light holes in a one-to-one correspondence manner.
In one exemplary embodiment of the application, along the row direction: the orthographic projection of the peep-proof light hole on the substrate is positioned between the orthographic projections of the adjacent two display light-emitting units on the substrate; along the column direction: the length of the orthographic projection of the peep-proof light hole on the substrate is larger than or equal to that of the orthographic projections of the two adjacent display light-emitting units on the substrate.
In one exemplary embodiment of the application, in two adjacent rows: the luminous colors of the luminous layers of the two adjacent display luminous units in the row direction are different; the luminous colors of the luminous layers of the two adjacent display luminous units in the column direction are different; the orthographic projections of at least three display light-emitting units in two adjacent rows of display light-emitting units on the substrate are arranged around the orthographic projections of the peep-proof light holes on the substrate; wherein, along the column direction: orthographic projection of the peep-proof light hole on the substrate and orthographic projection of at least two display light-emitting units on the substrate are arranged in a staggered mode.
In an exemplary embodiment of the present application, a pixel unit is formed by three adjacent display light emitting units with different light emitting colors, the light shielding layer is provided with a plurality of peep-proof light holes, and each of the peep-proof light holes is respectively arranged corresponding to one pixel unit.
In an exemplary embodiment of the present application, the display panel further includes an encapsulation layer disposed on a side of the pixel defining layer away from the substrate, and a touch conductive layer disposed between the encapsulation layer and the color filter layer; the orthographic projection of the touch conductive layer on the substrate is positioned in the orthographic projection of the shading layer on the substrate.
In an exemplary embodiment of the present application, the touch conductive layer is provided with a plurality of through holes, and the plurality of through holes are disposed in one-to-one correspondence with the plurality of peep-proof light holes.
In an exemplary embodiment of the present application, the display panel further includes a first planarization layer disposed on a side of the color filter layer away from the encapsulation layer; wherein the first flat layer is at least partially filled in the peep-proof light holes.
The second aspect of the application discloses a display device, comprising a shell and the display panel, wherein the display panel is connected in the shell.
The scheme of the application has the following beneficial effects:
in the embodiment of the application, when a user looks at the screen of the display panel, only the display picture consisting of the light rays emitted by the display light emitting units from the corresponding display light holes can be watched, that is, the display picture watched by the user at the front viewing angle is a picture which is normally displayed; under the condition of viewing at an oblique viewing angle, not only the display picture formed by the light rays emitted from the display light-transmitting holes, but also the display picture formed by the light rays emitted from the peep-proof light-transmitting holes can be seen, at this time, the light rays emitted from the display light-transmitting holes and the light rays emitted from the peep-proof light-transmitting holes are mixed in light, so that abnormal colors are displayed, information reading is disturbed, that is, the display picture viewed at the oblique viewing angle is the peep-proof picture. Therefore, the display panel realizes the peep-proof function.
Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic view showing a partial cross-sectional structure of a display panel according to an embodiment of the application.
Fig. 2 is a schematic view showing a partial cross-sectional structure of a display panel according to an embodiment of the application after the display panel is provided with a display light emitting unit.
Fig. 3 is a schematic diagram showing a partial cross-sectional structure of a light shielding layer of a display panel according to an embodiment of the application after the light shielding layer is provided with a peep-proof light hole and a display light hole.
Fig. 4 is a schematic view showing a partial plane structure of a display panel according to an embodiment of the application.
Fig. 5 is a schematic view showing a partial sectional structure of the display panel of fig. 4 along the section line A-A in accordance with the embodiment of the present application.
Fig. 6 is a schematic view illustrating a light path of a light emitted from a display light emitting unit of a display panel according to an embodiment of the application when the light passes through a peep-proof light hole.
Fig. 7 is a schematic view showing a partial cross-sectional structure of a touch structure of a display panel according to an embodiment of the application.
Fig. 8 is a schematic diagram illustrating a partial cross-sectional structure of a touch conductive layer of a display panel according to an embodiment of the application.
Fig. 9 is a schematic view showing a partial plane structure of a display panel according to a second embodiment of the application.
Fig. 10 is a schematic view showing a partial sectional structure of the display panel of fig. 9 along the section line B-B in the second embodiment of the present application.
Reference numerals illustrate:
10. a substrate; 11. a pixel defining layer; 111. a pixel opening; 112. a pixel defining section; 12. a display light emitting unit; 121. a light emitting layer; 122. an anode; 123. a cathode; 13. a light shielding layer; 101. peep-proof light holes; 102. displaying the light holes; 14. a color filter layer; 15. an encapsulation layer; 16. a touch conductive layer; 103. a through hole; 17. a touch driving line; 18. a touch detection line; 19. an insulating layer; 21. a first planarization layer; 22. a second flat layer; a. a row direction; b. column direction.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
The application will be described in further detail with reference to the drawings and the specific examples. It should be noted that the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
Example 1
As shown in fig. 1 to 8, a display panel is disclosed in the first embodiment. The display panel is, for example, an oled (organic light emitting diode) display panel.
As shown in fig. 1 to 3, the display panel includes a substrate 10, a pixel defining layer 11 disposed on the substrate 10, and a plurality of display light emitting units 12 arranged in an array, wherein the pixel defining layer 11 has a plurality of pixel openings 111 arranged at intervals and pixel defining portions 112 located between adjacent pixel openings 111, and the plurality of display light emitting units 12 are located in the pixel openings 111 in a one-to-one correspondence.
For example, as shown in fig. 2 and 3, the light emitting unit 12 is an organic light emitting diode, and includes an anode 122, a cathode 123, and a light emitting layer 121 between the anode 122 and the cathode 123.
It should be understood that the number of display light emitting units 12 is the same as the number of pixel openings 111 and corresponds one to one. Among them, the display light emitting unit 12 may include a plurality of types, and the light emitting colors of the light emitting layers 121 of the different types of display light emitting units 12 are different, for example: a red type display light emitting unit 12, a green type display light emitting unit 12, a blue type display light emitting unit 12, and the like, the red type display light emitting unit 12 indicating that the light emitting color of the light emitting layer 121 is red, the green type display light emitting unit 12 indicating that the light emitting color of the light emitting layer 121 is green, the blue type display light emitting unit 12 indicating that the light emitting color of the light emitting layer 121 is blue.
As shown in fig. 3, the display panel further includes a light shielding layer 13, where the light shielding layer 13 is disposed on a side of the pixel defining layer 11 away from the substrate 10.
In this embodiment, the light shielding layer 13 is a non-metal light shielding layer 13 (e.g., BM). For example, the light shielding layer 13 has a thickness of 0.5 μm, 0.75 μm, 0.8 μm, 0.95 μm, 1 μm, 1.35 μm, 1.5 μm, 2.45 μm, 2.5 μm or 2.55 μm.
Of course, in other embodiments, the light shielding layer 13 may also be a light-impermeable metal light shielding layer 13, for example, the thickness of the light shielding layer 13 is 0.1 μm, 0.15 μm, 0.2 μm, 0.25 μm, 0.3 μm, 0.35 μm, 0.4 μm, 0.45 μm, 0.5 μm or 0.55 μm.
It should be understood that when the light shielding layer 13 is a metal light shielding layer 13, it is necessary to use a circular polarizer and/or an anti-reflection layer.
As shown in fig. 1, 3 and 6, the light shielding layer 13 is provided with a plurality of display light holes 102 and at least one peep-proof light hole 101 which are arranged at intervals. Wherein the plurality of display light holes 102 are disposed opposite to the plurality of pixel openings 111. The front projection of the peep-proof light hole 101 on the substrate 10 is located in the front projection of the pixel defining portion 112 on the substrate 10, so as to allow the light emitted by the display light emitting unit 12 adjacent thereto to pass through.
It should be understood that, when the user is looking at the screen of the display panel, only the display screen composed of the light rays emitted from the respective corresponding display light-transmitting holes 102 by the plurality of display light-emitting units 12 can be viewed, that is, the display screen viewed at the front viewing angle by the user is the screen normally displayed; when the display screen is viewed at an oblique angle, not only the display screen formed by the light emitted from the display light-transmitting hole 102 but also the display screen formed by the light emitted from the peep-proof light-transmitting hole 101 are seen, at this time, the light emitted from the display light-transmitting hole 102 and the light emitted from the peep-proof light-transmitting hole 101 are mixed in light, so that the display is abnormal in color, and information reading is disturbed, that is, the display screen viewed at the oblique angle is the peep-proof screen. Therefore, the display panel realizes the peep-proof function.
In addition, in the present embodiment, the peep-proof viewing angle of the display panel is 25 to 60 °, preferably 25 °.
In this embodiment, as shown in fig. 1 and 3, the front projection of the peep-proof light hole 101 on the substrate 10 and the front projections of the adjacent two pixel openings 111 on the substrate 10 are disposed at equal intervals.
For example, the distance between the front projection of the peep-proof light hole 101 on the substrate 10 and the front projection of the two adjacent pixel openings 111 on the substrate 10 is larger than 0 μm; and less than or equal to 25 μm, so that the light emitted from the light emitting layer 121 of the display light emitting unit 12 and passing through the peep-proof light transmitting hole 101 can be seen under a oblique viewing angle, and the light emitted from the light emitting layer 121 of the display light emitting unit 12 and passing through the peep-proof light transmitting hole 101 can be hardly seen under a front viewing angle.
It should be understood that, as shown in fig. 3 and 4, in the plurality of display light emitting units 12 arranged in an array, if along the row direction a: the orthographic projection of the peep-proof light hole 101 on the substrate 10 is located between the orthographic projections of the adjacent two display light emitting units 12 on the substrate 10. Then, along the row direction a: the space between the orthographic projection of the peep-proof light hole 101 on the substrate 10 and the orthographic projection of the two adjacent pixel openings 111 on the substrate 10 is larger than 0 μm; and 25 μm or less.
Further, if along the column direction b: the orthographic projection of the peep-proof light hole 101 on the substrate 10 is located between the orthographic projections of the adjacent two display light emitting units 12 on the substrate 10. Then, along the column direction b: the space between the orthographic projection of the peep-proof light hole 101 on the substrate 10 and the orthographic projection of the two adjacent pixel openings 111 on the substrate 10 is larger than 0 μm; and 25 μm or less.
In the present embodiment, as shown in fig. 1, 3 and 4, the front projection of the peep-proof light-transmitting hole 101 on the substrate 10 is equal to the distance between the front projections of the adjacent pixel openings 111 on the substrate 10.
Of course, in other embodiments, to meet the requirement of one-sided peep prevention, the spacing between the orthographic projection of the peep-preventing light-transmitting hole 101 on the substrate 10 and the orthographic projection of the two adjacent pixel openings 111 on the substrate 10 can be adjusted according to the actual requirement, so that the spacing is unequal. For example, if only left peep prevention of the display panel is required in practical application, the distance between the front projection of the peep-preventing light hole 101 on the substrate 10 and the front projection of the right pixel opening 111 on the substrate 10 may be smaller than the distance between the front projection of the peep-preventing light hole 101 on the substrate 10 and the front projection of the left pixel opening 111 on the substrate 10, so that the user can view more light rays emitted from the display light emitting unit 12 in the right pixel opening 111 through the peep-preventing light hole 101 under the left oblique angle.
It should be understood that when the distance between the front projection of the peep-proof light hole 101 on the substrate 10 is equal to the distance between the front projections of the adjacent two pixel openings 111 on the substrate 10: if the orthographic projections of the two adjacent pixel openings 111 on the substrate 10 are respectively located at the left and right opposite sides of the orthographic projection of the peep-proof light hole 101 on the substrate 10, then the light output of the display light emitting unit 12 in the pixel opening 111 on the right side is almost equal to the light output of the display light emitting unit 12 in the pixel opening 111 on the left side is observed under the oblique viewing angle on the right side of the peep-proof light hole 101, so that the user can see the light passing through the peep-proof light hole 101 under the oblique viewing angles on the left and right sides, the distance difference between the peep-proof light hole 101 and the pixel openings 111 on the left and right opposite sides is avoided as much as possible, and the peep-proof effect is good because the light passing through the peep-proof light hole 101 is strong on one side, and the peep-proof light passing through the peep-proof light hole 101 is weak on the other side.
In the present embodiment, as shown in fig. 1, 3 and 4, adjacent three display light emitting units 12, which are different in light emission color type, among the plurality of display light emitting units 12 form one pixel unit. The light shielding layer 13 is provided with a plurality of peep-proof light holes 101, and each peep-proof light hole 101 in the plurality of peep-proof light holes 101 is respectively corresponding to one pixel unit, so that the whole display area is in a peep-proof state when the display panel displays a picture.
Further, along the row direction a: the adjacent three display light emitting units 12 each having a different emission color type form one pixel unit. For example, the display light emitting units 12 having the light emitting color types of red (R), green (G), and blue (B) form one pixel unit.
Further, the light shielding layer 13 is provided with a plurality of peep-proof light holes 101, and each peep-proof light hole 101 in the plurality of peep-proof light holes 101 is respectively corresponding to one pixel unit.
Further, as shown in fig. 4, in one pixel unit, along the row direction a: at least the region between two adjacent display light emitting units 12 corresponds to the peep-proof light holes 101.
Of course, in other embodiments, two adjacent pixel units may share one peep-proof light hole 101, or a plurality of pixel units may share one peep-proof light hole 101, or one pixel unit may correspond to a plurality of peep-proof light holes 101.
In the present embodiment, as shown in conjunction with fig. 1 and 4, along the row direction a: the orthographic projection of the peep-proof light hole 101 on the substrate 10 is positioned between the orthographic projections of the adjacent two display light emitting units 12 on the substrate 10; along the column direction b: the size of the orthographic projection of the peep-proof light hole 101 on the substrate 10 is larger than or equal to the size of orthographic projections of two adjacent display light emitting units 12 on the substrate 10.
It should be understood that, when the pixel units are arranged in the following manner: after the adjacent three display light emitting units 12 with different light emitting color types jointly form one pixel unit along the row direction a, the distance between the adjacent two display light emitting units 12 in the same pixel unit may be smaller due to the influence of the density (PPI) of the display pixels, especially when the PPI is small in size, the width of the peep-proof light hole 101 along the row direction a is limited by the PPI of the display panel and cannot be increased, and the peep-proof light hole 101 can only be increased in length along the column direction b so as to enlarge the opening area of the peep-proof light hole 101, and further increase the light output quantity of the peep-proof light hole 101 so as to enhance the peep-proof effect.
In this embodiment, as shown in fig. 3 and 5, the display panel includes a plurality of color filter layers 14, and the plurality of color filter layers 14 are disposed in the plurality of display light holes 102 in a one-to-one correspondence manner.
Of course, in other embodiments, the display panel includes or does not include the color filter layer 14.
It should be understood that the color filter layer 14 and the display light emitting unit 12 corresponding thereto have the same light emitting color, and the color filter layer 14 and the light shielding layer 13 together form a color film substrate (CF substrate) for dimming. That is, the display panel in this embodiment is a flexible COE pixel structure, which has lower power consumption.
Referring to fig. 5, the display panel further includes an encapsulation layer 15 and a touch structure, wherein the encapsulation layer 15 is disposed on a side of the pixel defining layer 11 away from the substrate 10, and the touch structure is disposed between the encapsulation layer 15 and the color filter layer 14.
In this embodiment, the encapsulation layer 15 includes a first inorganic isolation layer, an organic isolation layer, and a second inorganic isolation layer, where the first inorganic isolation layer covers a side of each display light emitting unit 12 away from the substrate 10, the organic isolation layer covers the first inorganic isolation layer, and the second inorganic isolation layer covers a side of the organic isolation layer away from the substrate 10.
For example, the first inorganic isolation layer and the second inorganic isolation layer may be formed of inorganic materials, both for water-oxygen barrier function. The organic barrier layer is formed of, for example, an organic material, and functions as a flat film layer.
In some embodiments, the thickness of the first inorganic barrier layer ranges from 0.5 to 2 μm. Alternatively, the first inorganic isolation layer has a thickness of 0.5 μm, 0.7 μm, 0.8 μm, 1.0 μm, 1.2 μm, 1.5 μm, or 2 μm.
In some embodiments, the thickness of the organic barrier layer ranges from 4-20 μm. Alternatively, the thickness of the organic barrier layer is 5 μm, 7 μm, 8 μm, 10 μm, 12.5 μm, 15 μm or 20 μm.
In some embodiments, the thickness of the second inorganic barrier layer ranges from 0.5 to 2 μm. Alternatively, the second inorganic isolation layer has a thickness of 0.5 μm, 0.7 μm, 0.8 μm, 1.0 μm, 1.2 μm, 1.5 μm or 2 μm.
In this embodiment, as shown in fig. 5 to 7, the touch structure includes a touch conductive layer 16, the front projection of the touch conductive layer 16 on the substrate 10 is located in the front projection of the light shielding layer 13 on the substrate 10, so as to avoid affecting the aperture ratio of the display panel, and the front projection of the touch conductive layer 16 on the substrate 10 and the front projection of the color filter layer 14 on the substrate 10 are arranged in a staggered manner.
It should be understood that the touch conductive layer 16 is a metal conductive layer for realizing a touch function of the display panel, that is, the display panel in this embodiment is a display panel with a touch function.
In this embodiment, as shown in fig. 3, a plurality of through holes 103 are disposed on the touch conductive layer 16, the plurality of through holes 103 are disposed in one-to-one correspondence with the plurality of peep-proof light holes 101, and the through holes are used for allowing light emitted by the adjacent display light emitting units 12 to pass through, so as to prevent the touch conductive layer 16 from shielding the peep-proof light holes 101, and further prevent the touch conductive layer 16 from blocking the light through the peep-proof light holes 101.
It should be understood that, in the present embodiment, the touch conductive layer 16 is made of a non-transparent metal material, and the through hole 103 may be formed at the same time when the light shielding layer 13 is perforated to form the peep-proof light hole 101, that is, the peep-proof light hole 101 and the through hole 103 are formed by exposing, developing and etching with the same MASK.
In other embodiments, as shown in fig. 8, the touch conductive layer 16 may also be formed by a transparent metal layer, for example, indium Tin Oxide (ITO), indium Zinc Oxide (IZO), or Indium Gallium Zinc Oxide (IGZO).
It should be understood that when the touch conductive layer 16 is formed by using a transparent metal layer, the shielding effect of the touch conductive layer on the peep-proof light holes 101 can be almost eliminated.
In this embodiment, as shown in fig. 7, the touch structure further includes a touch driving line 17 and a touch detecting line 18. The touch driving lines 17 (Tx) and the touch detecting lines 18 (Rx) are disposed on one side of the color filter layer 14 near the touch conductive layer 16, and the touch conductive layer 16 is isolated from the touch driving lines 17 (Tx) and the touch detecting lines 18 (Rx) by the insulating layer 19. The touch driving line 17 (Tx) is connected to the touch conductive layer 16 through a via hole, and jointly implements a touch function of the display panel with the touch detecting line 18 (Rx) and the touch conductive layer 16.
In addition, a second flat layer 22 is further disposed between the touch driving line 17 (Tx) and the touch detecting line 18 (Rx) and the color filter layer 14, and the surface of the second flat layer 22 facing the color filter layer 14 is a horizontal plane, so that the color film substrate composed of the color filter layer 14 and the light shielding layer 13 can be attached to the color film substrate smoothly.
In this embodiment, as shown in fig. 8, the display panel further includes a first planarization layer 21, where the first planarization layer 21 is disposed on a side of the color filter layer 14 away from the encapsulation layer 15; wherein, the first flat layer 21 is at least partially filled in the peep-proof light holes 101.
It should be appreciated that the surface of the side of the first planarization layer 21 remote from the color filter layer 14 is a horizontal plane, so as to form a planarized subsequent film layer. The first flat layer 21 is at least partially filled in the peep-proof light hole 101, so that the deformation of the light shielding layer 13 after the peep-proof light hole 101 is opened can be reduced.
Example two
As shown in fig. 9 and 10, the display panel of the second embodiment is substantially the same as the display panel of the first embodiment, and is different from the display panel of the first embodiment in the positions of the peep-preventing light holes 101 in the display panel of the second embodiment.
In this embodiment, in two adjacent rows: the light emitting layers 121 of the adjacent two display light emitting units 12 located in the row direction a are different in light emitting color; the light emitting layers 121 of the adjacent two display light emitting units 12 located in the column direction b are different in light emitting color; wherein, the orthographic projection of at least three display light emitting units 12 in two adjacent rows of display light emitting units 12 on the substrate 10 is arranged around the orthographic projection of the peep-proof light hole 101 on the substrate 10; wherein, along the column direction b: the orthographic projection of the peep-proof light hole 101 on the substrate 10 and the orthographic projection of the at least two display light emitting units 12 on the substrate 10 are arranged in a staggered manner.
For example, in the same row: the adjacent three display light emitting units 12, which are different in light emitting color type, among the plurality of display light emitting units 12 form one pixel unit. The orthographic projection of the peep-proof light hole 101 on the substrate 10 is located between two adjacent pixel units along the column direction b.
It should be understood that the area of the light shielding layer 13 between two adjacent pixel units is generally larger than the area of the light shielding layer 13 of two adjacent display light emitting units 12 in the same pixel unit, so that the arrangement of the peep-proof light holes 101 is more convenient.
In some embodiments, when the front projections of at least three display light emitting units 12 in two adjacent rows of display light emitting units 12 on the substrate 10 are disposed around the front projections of the peep-proof light holes 101 on the substrate 10, the display light emitting units 12 in two adjacent rows of display light emitting units 12 may be disposed in a staggered manner along the column direction b, so that the front projections of the peep-proof light holes 101 on the substrate 10 and the front projections of at least two display light emitting units 12 on the substrate 10 are disposed in a staggered manner, that is, along the column direction b: the front projection of the peep-proof light hole 101 on the substrate 10 is arranged corresponding to the gap between the front projections of the two display light emitting units 12 on the substrate 10.
For other structures and working principles of the display panel, please refer to the first embodiment, and the description thereof is omitted.
Example III
The present embodiment provides a display device. The display device comprises a shell and the display panel in the first embodiment or the second embodiment, wherein the display panel is connected in the shell. For example, the display device is an in-vehicle display device, a mobile phone, a computer, or the like.
For other structures and working principles of the display panel, please refer to the first embodiment or the second embodiment, and the description thereof is omitted.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be fixedly attached, detachably attached, or integrally formed, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The meaning of "a plurality of" is two or more, unless specifically defined otherwise. And the description of the terms "some embodiments," "illustratively," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application.
The schematic representations of the above terms are not necessarily for the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the embodiments by those skilled in the art within the scope of the application, which is therefore intended to be covered by the appended claims and their description.
Claims (10)
1. A display panel, comprising: the display device comprises a substrate, a pixel defining layer and a plurality of display light-emitting units, wherein the pixel defining layer is arranged on the substrate and is provided with a plurality of pixel openings which are arranged at intervals and pixel defining parts which are positioned between the adjacent pixel openings, and the display light-emitting units are positioned in the pixel openings in a one-to-one correspondence manner; it is characterized in that the method comprises the steps of,
the display panel further comprises a light shielding layer, wherein the light shielding layer is arranged on one side, far away from the substrate, of the pixel defining layer, and the light shielding layer is provided with a plurality of display light holes and at least one peeping-proof light hole which are distributed at intervals; wherein, the liquid crystal display device comprises a liquid crystal display device,
the display light holes are in one-to-one correspondence with the pixel openings;
the orthographic projection of the peep-proof light hole on the substrate is positioned in the orthographic projection of the pixel defining part on the substrate and is used for allowing light rays emitted by the display light-emitting units adjacent to the orthographic projection to pass through.
2. The display panel of claim 1, wherein the privacy light apertures are spaced apart from the orthographic projections of the pixel openings adjacent thereto on the substrate.
3. The display panel of claim 2, wherein the privacy light holes are equidistant from each of the pixel openings adjacent thereto.
4. The display panel of claim 1, wherein orthographic projections of the privacy light holes on the substrate are located between orthographic projections of adjacent two of the pixel openings on the substrate in a row direction;
the dimension of the peep-proof light hole in the column direction is larger than or equal to the dimension of the pixel opening in the column direction.
5. The display panel of claim 1, wherein the display panel comprises,
the light emission colors of the adjacent display light emitting units are different in the row direction, and the light emission colors of the adjacent display light emitting units are different in the column direction;
the orthographic projection of the peep-proof light hole on the substrate is positioned between orthographic projections of two adjacent rows of pixel openings on the substrate, and at least three pixel openings are arranged in a surrounding mode.
6. The display panel according to claim 1, wherein the display panel comprises a plurality of pixel units including at least three of the display light emitting units having different light emitting colors, wherein,
in the pixel unit: at least the region between two adjacent display light-emitting units corresponds to the peep-proof light holes; or (b)
The display panel comprises a plurality of color filter layers, and each color filter layer is correspondingly arranged in one display light hole and has the same luminous color as the corresponding display luminous unit.
7. The display panel of claim 1, further comprising an encapsulation layer disposed on a side of the pixel defining layer away from the substrate and a touch conductive layer disposed between the encapsulation layer and the light shielding layer.
8. The display panel according to claim 7, wherein the touch conductive layer is a metal conductive layer, and the touch conductive layer is provided with a plurality of through holes, each through hole is disposed corresponding to one of the peep-proof light holes, and the through hole is used for allowing light emitted by the display light emitting unit adjacent to the through hole to pass through.
9. The display panel of claim 1, further comprising a first planarization layer disposed on a side of the light shielding layer away from the encapsulation layer; wherein, the liquid crystal display device comprises a liquid crystal display device,
the first flat layer is at least partially filled in the peep-proof light holes.
10. A display device comprising a housing and the display panel of any one of claims 1-9, the display panel being connected within the housing.
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