CN116419637A - Display panel, manufacturing method thereof and display device - Google Patents

Display panel, manufacturing method thereof and display device Download PDF

Info

Publication number
CN116419637A
CN116419637A CN202310340383.6A CN202310340383A CN116419637A CN 116419637 A CN116419637 A CN 116419637A CN 202310340383 A CN202310340383 A CN 202310340383A CN 116419637 A CN116419637 A CN 116419637A
Authority
CN
China
Prior art keywords
layer
substrate
display panel
display
organic light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310340383.6A
Other languages
Chinese (zh)
Inventor
姚雷
许传志
陈方
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Govisionox Optoelectronics Co Ltd
Original Assignee
Kunshan Govisionox Optoelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Govisionox Optoelectronics Co Ltd filed Critical Kunshan Govisionox Optoelectronics Co Ltd
Priority to CN202310340383.6A priority Critical patent/CN116419637A/en
Publication of CN116419637A publication Critical patent/CN116419637A/en
Pending legal-status Critical Current

Links

Images

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
    • H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/1201—Manufacture or treatment
    • 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
    • H10K59/40—OLEDs integrated with touch screens
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Abstract

The application relates to a display panel, a manufacturing method thereof and a display device. The display panel includes: a substrate; the display layer group is arranged on one side of the substrate and comprises a plurality of light-emitting units; the touch control layer group is arranged on one side of the display layer group, which is far away from the substrate, and comprises a plurality of touch control electrode units and a plurality of peep-proof units; the light-emitting unit comprises an organic light-emitting layer, and the orthographic projection of the peep-proof unit on the substrate is at least partially overlapped with the orthographic projection of the organic light-emitting layer on the substrate. In the display panel of the embodiment of the application, the touch control layer group comprises a plurality of touch control electrode units and a plurality of peep prevention units, wherein the orthographic projection of the peep prevention units on the substrate and the orthographic projection of the organic light-emitting layer on the substrate are at least partially overlapped. The peep-proof unit can screen the light that the luminescence unit sent to filter the light of wide-angle, and then restrict display panel's visual angle. Thus, the peep-proof display function of the display panel can be realized.

Description

Display panel, manufacturing method thereof and display device
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel, a manufacturing method thereof, and a display device.
Background
In recent years, OLEDs (Organic Light-Emitting diodes) have been attracting attention in recent years due to their huge application market in the display field. Compared with other display technologies, the OLED display panel has more advantages, such as wide viewing angle, high response speed, no need of backlight illumination, and flexible display. However, since the OLED display panel has a large viewing angle, people can easily snoop by others when viewing the display device, so that personal privacy, trade secrets or technical data are exposed to risks of disclosure. Therefore, the peep-proof display is becoming one of the important demands of display panels.
Disclosure of Invention
Accordingly, it is necessary to provide a display panel, a method for manufacturing the same, and a display device for realizing the peep-proof display function of the display panel.
According to one aspect of the present application, a display panel is provided. The display panel includes: a substrate; the display layer group is arranged on one side of the substrate and comprises a plurality of light-emitting units; the touch control layer group is arranged on one side of the display layer group, which is far away from the substrate, and comprises a plurality of touch control electrode units and a plurality of peep-proof units; the light-emitting unit comprises an organic light-emitting layer, and the orthographic projection of the peep-proof unit on the substrate is at least partially overlapped with the orthographic projection of the organic light-emitting layer on the substrate.
In the display panel of the embodiment of the application, the touch control layer group comprises a plurality of touch control electrode units and a plurality of peep prevention units, wherein the orthographic projection of the peep prevention units on the substrate and the orthographic projection of the organic light-emitting layer on the substrate are at least partially overlapped. The peep-proof unit can screen the light that the luminescence unit sent to filter the light of wide-angle, and then restrict display panel's visual angle. Thus, the peep-proof display function of the display panel can be realized.
In some embodiments, the orthographic projection of the organic light emitting layer on the substrate is located within the orthographic projection of the privacy unit on the substrate. By the arrangement, the light rays emitted by the light-emitting units can be covered by the corresponding peep-proof units, so that the peep-proof units can effectively play a role in filtering the large-angle light rays emitted by the light-emitting units.
In some embodiments, the privacy unit is a grating. Through setting up the grating, can filter the wide-angle light that the luminescence unit sent to realize display panel's peep-proof display function.
In some embodiments, the privacy unit and the touch electrode unit are disposed on the same layer. According to the embodiment of the application, the peep-proof display is realized by arranging the peep-proof unit in the display panel, and the peep-proof unit and the touch electrode unit are arranged on the same layer, so that the thickness of the display panel cannot be increased, and accordingly, the overall thickness of the display device with the display panel cannot be increased. In addition, with peep-proof unit and touch electrode unit homolayer setting, compare in the mode of laminating peep-proof membrane on display device, under the circumstances that the user touched display device, the former can not change distance and the rete quantity between touch electrode unit and the user's finger, and the distance grow and the rete increases between the later touch electrode unit and the user's finger, consequently, with grating and touch electrode unit homolayer setting's mode in this embodiment, than laminating peep-proof membrane's mode on display device, touch sensitivity can be better. In summary, the display panel in the embodiment of the application can realize peep-proof display on the premise of not changing the thickness of the display device and the touch sensitivity.
In some embodiments, the grating is a metal grating, and the metal grating is insulated from the touch electrode unit. Under the condition that the grating is a metal grating, the grating and the touch electrode unit in the touch control layer group can be manufactured through the same manufacturing procedure, at the moment, the number of mask plates used in manufacturing of the display panel is not increased, and cost saving is facilitated.
In some embodiments, the front projection of the touch electrode unit on the substrate does not overlap with the front projection of the organic light emitting layer on the substrate. Therefore, the touch electrode unit avoids the light emission of the light emitting unit, so that the influence on the aperture opening ratio of the display panel is avoided.
In some embodiments, the display panel further includes a pixel defining layer, on which a plurality of pixel openings are disposed, and the organic light emitting layers are disposed in the pixel openings in a one-to-one correspondence; and the distance between the organic light-emitting layer and the touch control layer group is greater than the distance between the pixel definition layer and the touch control layer group along the thickness direction of the display panel. Therefore, the organic light-emitting layer is embedded in the pixel opening in the thickness direction of the display panel, and therefore, a part of large-angle light emitted by the light-emitting unit can reach the side wall of the pixel opening, and is filtered by the pixel definition layer, the visual angle of the display panel can be further limited, and a better peeping-proof display effect is obtained.
In some embodiments, the included angle α between the sidewall of the pixel opening and the organic light emitting layer satisfies:
90°＜α≤105°。
in the case where the above-described limitation condition is satisfied, the filtering effect of the sidewall of the pixel opening on the light of a large angle emitted from the light emitting unit may be remarkable.
In some embodiments, the display panel satisfies the following constraints:
Figure BDA0004158284400000031
in the formula, beta is more than or equal to 45 degrees and less than or equal to 60 degrees; w represents the width of the first side of the organic light emitting layer; h represents a distance between a first side of the organic light emitting layer and a side of the pixel defining layer facing the touch layer group; the first side is the side of the organic light-emitting layer facing the touch control layer group. Under the condition that the limiting condition is met, the filtering effect of the side wall of the pixel opening on the light rays with the large angles emitted by the light emitting unit is further improved, so that the filtering effect of the side wall of the pixel opening on the light rays with the large angles emitted by the light emitting unit becomes obvious.
In some embodiments, the sidewalls of the pixel openings are provided with a light blocking layer. The light blocking layer is arranged on the side wall of the pixel opening, so that the filtering effect of the side wall of the pixel opening on the large-angle light emitted by the light emitting unit is improved, and the purpose of further improving the peep-proof display effect of the display panel is achieved.
In some embodiments, the display panel further includes an encapsulation layer, the encapsulation layer is disposed on a side of the display layer group away from the substrate, and the touch layer group is disposed on a side of the encapsulation layer away from the display layer group. The setting position of the touch layer group in the embodiment of the application is consistent with most display panels in the related art. Thus, no significant changes are necessary to the manufacturing process of the display panel.
According to another aspect of the present application, there is provided a manufacturing method of a display panel, the manufacturing method including:
providing a substrate;
forming a display layer group on one side of the substrate, wherein the display layer group comprises a plurality of light emitting units, and the light emitting units comprise organic light emitting layers;
and forming a touch layer on one side of the display layer group away from the substrate, wherein the touch layer group comprises a plurality of touch electrode units and a plurality of peep-proof units, and the orthographic projection of the peep-proof units on the substrate is at least partially overlapped with the orthographic projection of the organic light-emitting layer on the substrate.
The touch control layer group of the display panel manufactured by the manufacturing method in the embodiment of the application comprises a plurality of touch control electrode units and a plurality of peep-proof units, wherein the orthographic projection of the peep-proof units on the substrate is at least partially overlapped with the orthographic projection of the organic light-emitting layer on the substrate. The peep-proof unit can screen the light that the luminescence unit sent to filter the light of wide-angle, and then restrict display panel's visual angle. Thus, the peep-proof display function of the display panel can be realized.
According to still another aspect of the present application, there is provided a display device including the display panel in any one of the above embodiments.
In the display device of the embodiment of the application, the touch layer group of the display panel includes a plurality of touch electrode units and a plurality of peep-proof units, wherein the orthographic projection of the peep-proof units on the substrate and the orthographic projection of the organic light-emitting layer on the substrate are at least partially overlapped. The peep-proof unit can screen the light that the luminescence unit sent to filter the light of wide-angle, and then restrict display panel's visual angle. Thus, the peep-proof display function of the display panel can be realized.
Drawings
FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present application (arrows indicate light);
FIG. 2 is a schematic top view of a touch layer according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a partial structure of a display panel according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram showing a relationship between an organic light emitting layer and a pixel opening in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a display panel according to another embodiment of the present application.
Reference numerals:
10. a display panel;
100. displaying the layer group; 110. a light emitting unit; 111. a first electrode; 112. a second electrode; 1131. an organic light emitting layer; 1132. an electron transport layer; 1133. an electron injection layer;
200. a touch control layer group; 210. a touch electrode unit;
300. a peep-proof unit;
400. a substrate;
500. a pixel definition layer; 510. a pixel opening; 511. a light blocking layer;
600. and an encapsulation layer.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In describing positional relationships, when an element such as a layer, film or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present unless otherwise indicated. Further, when a layer is referred to as being "under" another layer, it can be directly under, or one or more intervening elements may also be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening elements may also be present.
Where the terms "comprising," "having," and "including" are used herein, another component may also be added unless explicitly defined as such, e.g., "consisting of … …," etc. Unless mentioned to the contrary, singular terms may include plural and are not to be construed as being one in number.
It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.
It will be further understood that when interpreting an element, although not explicitly described, the element is intended to include the range of errors which should be within the acceptable limits of deviation from the particular values identified by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, and is not limited herein.
Further, in the specification, the phrase "planar distribution diagram" refers to the drawing when the target portion is viewed from above, and the phrase "cross-sectional diagram" refers to the drawing when the cross section taken by vertically cutting the target portion is viewed from the side.
Further, the drawings are not 1:1, and the relative dimensions of the various elements are drawn by way of example only in the drawings and are not necessarily drawn to true scale.
In recent years, OLEDs (Organic Light-Emitting diodes) have been attracting attention in recent years due to their huge application market in the display field. Compared with other display technologies, the OLED display panel has more advantages, such as wide viewing angle, high response speed, no need of backlight illumination, and flexible display. However, since the OLED display panel has a large viewing angle, people can easily snoop by others when viewing the display device, so that personal privacy, trade secrets or technical data are exposed to risks of disclosure. Therefore, the peep-proof display is becoming one of the important demands of display panels.
In view of the foregoing, an embodiment of a first aspect of the present application proposes a display panel, which aims to implement a peep-proof display function of the display panel.
As shown in fig. 1, the display panel 10 in the embodiment of the first aspect of the present application includes a substrate 400, a display layer group 100, and a touch layer group 200. Specifically, the display layer set 100 is disposed on one side of the substrate 400, the display layer set 100 includes a plurality of light emitting units 110, the touch layer set 200 is disposed on one side of the display layer set 100 away from the substrate 400, and the touch layer set 200 includes a plurality of touch electrode units 210 and a plurality of peep preventing units 300. The light emitting unit 110 includes an organic light emitting layer 1131, and the front projection of the peep preventing unit 300 on the substrate 400 at least partially overlaps with the front projection of the organic light emitting layer 1131 on the substrate 400.
In the display panel 10 of the embodiment of the present application, the touch layer set 200 includes a plurality of touch electrode units 210 and a plurality of peep-preventing units 300, where the front projection of the peep-preventing units 300 on the substrate 400 at least partially overlaps the front projection of the organic light emitting layer 1131 on the substrate 400. The peep-proof unit 300 can screen the light emitted by the light emitting unit 110, so as to filter out the light with a large angle, and further limit the viewing angle of the display panel 10. This enables the display panel 10 to realize a peep-proof display function.
In some embodiments, the front projection of the organic light emitting layer 1131 on the substrate 400 is located within the front projection of the privacy unit 300 on the substrate 400. By the arrangement, the light rays emitted by the light emitting units 110 can be covered by the corresponding peep preventing units 300, so that the peep preventing units 300 can effectively play a role in filtering the large-angle light rays emitted by the light emitting units 110.
In some embodiments, the privacy unit 300 is a grating. It can be understood that the grating is an optical device having a plurality of slits, and by providing the grating, the light emitted by the light emitting unit 110 with a large angle can be filtered, thereby realizing the peep-proof display function of the display panel 10.
Further, the grating may be a metal grating, and the metal grating is insulated from the touch electrode unit. In the case that the grating is a metal grating, the grating and the touch electrode unit 210 in the touch layer group 200 may be manufactured through the same manufacturing process, and at this time, the number of mask plates used in manufacturing the display panel 10 is not increased, which is beneficial to saving cost. In other embodiments, the grating may be a non-metallic material, for example, the grating may be made of an organic material.
In some embodiments, the privacy unit 300 and the touch electrode unit 210 are disposed on the same layer. One means for implementing the peep-proof display in the related art is to attach a peep-proof film to the display device, which also brings some new inconveniences, such as an increase in the overall thickness of the display device, a deterioration in touch sensitivity, and the like. In contrast, the embodiment of the present application realizes the peep-proof display by disposing the peep-proof unit 300 in the display panel 10, and the peep-proof unit 300 and the touch electrode unit 210 are disposed in the same layer, so that the thickness of the display panel 10 is not increased, and accordingly, the overall thickness of the display device having the display panel 10 is not increased. In addition, the peep-proof unit 300 and the touch electrode unit 210 are arranged on the same layer, compared with the mode of attaching the peep-proof film on the display device, under the condition that a user touches the display device, the distance between the touch electrode unit 210 and the finger of the user and the number of film layers are not changed, and the distance between the touch electrode unit 210 and the finger of the user is increased, so that the mode of arranging the grating 310 and the touch electrode unit 210 on the same layer in the embodiment of the invention is better in touch sensitivity than the mode of attaching the peep-proof film on the display device. In summary, the display panel 10 in the embodiment of the present application can realize peep-proof display without changing the thickness and touch sensitivity of the display device.
In some embodiments, as shown in fig. 1 and 2, the front projection of the touch electrode unit 210 on the substrate 400 does not overlap with the front projection of the organic light emitting layer 1131 on the substrate 400. Thus, the touch electrode unit 210 is prevented from emitting light from the light emitting unit 100, so as to avoid affecting the aperture ratio of the display panel 10.
In some embodiments, as shown in fig. 3, the display panel 10 further includes a pixel defining layer 500, where a plurality of pixel openings 510 are disposed on the pixel defining layer 500, and the organic light emitting layers 1131 are disposed in the pixel openings 510 in a one-to-one correspondence. Along the thickness direction of the display panel 10, the distance between the organic light emitting layer 1131 and the touch layer 200 is greater than the distance between the pixel defining layer 500 and the touch layer 200. In this embodiment, the distance between the organic light emitting layer 1131 and the touch layer group 200 is greater than the distance between the pixel defining layer 500 and the touch layer group 200 along the thickness direction of the display panel 10, so that the organic light emitting layer 1131 is embedded in the pixel opening 510 along the thickness direction of the display panel 10, and thus, a part of the light with a large angle emitted by the light emitting unit 110 can reach the side wall of the pixel opening 510, and be filtered by the pixel defining layer 500, so that the visual angle of the display panel 10 can be further limited, and a better peeping-proof display effect can be obtained.
In a specific example, as shown in fig. 4, an included angle α between a sidewall of the pixel opening 510 and the organic light emitting layer 1131 satisfies:
90°＜α≤105°。
if the angle α between the sidewall of the pixel opening 510 and the organic light emitting layer 1131 is too large, the sidewall of the pixel opening 510 may have a poor filtering effect on the light emitted from the light emitting unit 110 at a large angle. This embodiment therefore defines α. The applicant has verified through a number of experiments that the sidewall of the pixel opening 510 has a significant effect of filtering the light emitted from the light emitting unit 110 at a large angle when the above-described limitation is satisfied. It is worth noting that in conventional designs, the angle is typically 105 ° to 120 °.
Further, as shown in fig. 4, the display panel 10 also satisfies the following limitation conditions:
Figure BDA0004158284400000101
wherein, beta can be understood as an included angle between a connecting line of a point A and a point B and a normal direction of the organic light emitting layer, wherein, beta is more than or equal to 45 degrees and less than or equal to 60 degrees, the point A is any contact point between the edge of the first side of the organic light emitting layer and the inner wall of the pixel opening, the first side is one side of the organic light emitting layer 1131 facing the touch layer group 200, and the point B is a point which is positioned on the edge of the pixel opening 510 and is farthest from the point A; h represents a distance between a first side of the organic light emitting layer 1131 and a side of the pixel defining layer 500 facing the touch layer group 200; w represents the width of the first side of the organic light emitting layer 1131, which is the width of the first side of the organic light emitting layer 1131 on the section where the points a and B are located.
If the value of h is set too small, the filtering effect of the sidewall of the pixel opening 510 on the light of a large angle emitted from the light emitting unit 110 may not be obvious. Therefore, this embodiment also defines the value of h. The applicant has found through a great deal of experiments that, in the case that the above-mentioned limiting condition is satisfied, the filtering effect of the side wall of the pixel opening 510 on the light with a large angle emitted by the light emitting unit 110 is further improved, so that the filtering effect of the side wall of the pixel opening 510 on the light with a large angle emitted by the light emitting unit 110 becomes obvious.
In some embodiments, the light emitting unit 110 further includes a first electrode 111 and a second electrode 112, the first electrode 111 is disposed on a side of the organic light emitting layer 1131 near the substrate 400, and the second electrode 112 is disposed on a side of the organic light emitting layer 1131 far from the substrate 400. The first electrode 111 is an anode, the second electrode 112 is a cathode, and the anode and the cathode may jointly provide an electric field to enable the organic light emitting layer 1131 to emit light.
Further, at least one of an electron transport layer 1132 and an electron injection layer 1133 may be disposed between the organic light emitting layer 1131 and the second electrode 112. In addition, a hole blocking layer may be further disposed between the organic light emitting layer 1131 and the second electrode 112.
Further, at least one of a hole transport layer 1134 and a hole injection layer 1135 may be disposed between the organic light emitting layer 1131 and the first electrode 111. In addition, an electron blocking layer may be further disposed between the organic light emitting layer 1131 and the first electrode 111.
In some embodiments, as shown in fig. 5, the sidewalls of the pixel openings 510 are provided with a light blocking layer 511. The pixel defining layer 500 in the related art is made of transparent material, translucent material, or opaque material. In the case that the pixel defining layer 500 is made of a transparent material or a semitransparent material, the filtering effect of the side wall of the pixel opening 510 on the large-angle light emitted by the light emitting unit 110 can be improved by disposing the light blocking layer 511 on the side wall of the pixel opening 510, so as to achieve the purpose of further improving the peep-proof display effect of the display panel 10.
Specifically, the light blocking layer 511 may be a black film layer having an absorbing effect on light.
In some embodiments, the display panel 10 further includes an encapsulation layer 600, the encapsulation layer 600 is disposed on a side of the display layer group 100 away from the substrate 400, and the touch layer group 200 is disposed on a side of the encapsulation layer 600 away from the display layer group 100. It can be understood that, in most display panels 10 with touch functions in the related art, the touch layer assembly 200 is disposed on the encapsulation layer 600. As can be seen, the placement of the touch layer set 200 in the embodiment of the present application is consistent with most display panels 10 in the related art. Thus, no significant changes are necessary to the manufacturing process of the display panel 10.
An embodiment of the second aspect of the present application proposes a manufacturing method of a display panel 10, the manufacturing method including:
providing a substrate 400;
forming a display layer group 100 on one side of the substrate 400, the display layer group 100 including a plurality of light emitting units 110, the light emitting units 110 including an organic light emitting layer 1131;
the touch layer set 200 is formed on a side of the display layer set 100 away from the substrate 400, where the touch layer set 200 includes a plurality of touch electrode units 210 and a plurality of peep-proof units 300, and the orthographic projection of the peep-proof units 300 on the substrate 400 at least partially overlaps the orthographic projection of the organic light emitting layer 1131 on the substrate 400.
The touch layer set 200 of the display panel 10 manufactured by the manufacturing method in the embodiment of the present application includes a plurality of touch electrode units 210 and a plurality of peep-preventing units 300, where the front projection of the peep-preventing units 300 on the substrate 400 at least partially overlaps the front projection of the organic light-emitting layer 1131 on the substrate 400. The peep-proof unit 300 can screen the light emitted by the light emitting unit 110, so as to filter out the light with a large angle, and further limit the viewing angle of the display panel 10. This enables the display panel 10 to realize a peep-proof display function.
An embodiment of a third aspect of the present application proposes a display device comprising the display panel 10 of any of the embodiments of the first aspect described above. The display device may be any product or component with a display function, such as a display, a television, a digital camera, a mobile phone, a tablet computer, a navigator, etc.
In the display device of the embodiment of the present application, the touch layer set 200 of the display panel 10 includes a plurality of touch electrode units 210 and a plurality of peep-preventing units 300, where the front projection of the peep-preventing units 300 on the substrate 400 at least partially overlaps the front projection of the organic light emitting layer 1131 on the substrate 400. The peep-proof unit 300 can screen the light emitted by the light emitting unit 110, so as to filter out the light with a large angle, and further limit the viewing angle of the display panel 10. This enables the display panel 10 to realize a peep-proof display function.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A display panel, comprising:
a substrate;
the display layer group is arranged on one side of the substrate and comprises a plurality of light-emitting units; and
the touch control layer group is arranged on one side of the display layer group, which is far away from the substrate, and comprises a plurality of touch control electrode units and a plurality of peep-proof units;
the light-emitting unit comprises an organic light-emitting layer, and the orthographic projection of the peep-proof unit on the substrate is at least partially overlapped with the orthographic projection of the organic light-emitting layer on the substrate.
2. The display panel of claim 1, wherein the orthographic projection of the organic light emitting layer on the substrate is located within the orthographic projection of the privacy unit on the substrate.
3. The display panel according to claim 1, wherein the peep-proof unit is a grating;
preferably, the peep-proof unit and the touch electrode unit are arranged on the same layer;
preferably, the grating is a metal grating, and the metal grating is arranged in an insulating manner with the touch electrode unit;
preferably, the front projection of the touch electrode unit on the substrate does not overlap with the front projection of the organic light emitting layer on the substrate.
4. The display panel according to claim 1, further comprising a pixel defining layer, wherein a plurality of pixel openings are provided on the pixel defining layer, and the organic light emitting layers are provided in the pixel openings in a one-to-one correspondence;
and the distance between the organic light-emitting layer and the touch control layer group is greater than the distance between the pixel definition layer and the touch control layer group along the thickness direction of the display panel.
5. The display panel of claim 4, wherein an angle α between a sidewall of the pixel opening and the organic light emitting layer satisfies:
90°＜α≤105°。
6. the display panel according to claim 5, wherein the display panel satisfies the following limitation:
Figure FDA0004158284390000021
in the formula, beta is more than or equal to 45 degrees and less than or equal to 60 degrees; representing a width of a first side of the organic light emitting layer; h represents a distance between a first side of the organic light emitting layer and a side of the pixel defining layer facing the touch layer group; the first side is the side of the organic light-emitting layer facing the touch control layer group.
7. The display panel according to claim 4, wherein a sidewall of the pixel opening is provided with a light blocking layer.
8. The display panel of any one of claims 1 to 7, further comprising an encapsulation layer disposed on a side of the display layer group remote from the substrate, the touch layer group being disposed on a side of the encapsulation layer remote from the display layer group.
9. A method for manufacturing a display panel, comprising:
providing a substrate;
forming a display layer group on one side of the substrate, wherein the display layer group comprises a plurality of light emitting units, and the light emitting units comprise organic light emitting layers;
and forming a touch layer on one side of the display layer group away from the substrate, wherein the touch layer group comprises a plurality of touch electrode units and a plurality of peep-proof units, and the orthographic projection of the peep-proof units on the substrate is at least partially overlapped with the orthographic projection of the organic light-emitting layer on the substrate.
10. A display device comprising the display panel according to any one of claims 1 to 8.
CN202310340383.6A 2023-03-31 2023-03-31 Display panel, manufacturing method thereof and display device Pending CN116419637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310340383.6A CN116419637A (en) 2023-03-31 2023-03-31 Display panel, manufacturing method thereof and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310340383.6A CN116419637A (en) 2023-03-31 2023-03-31 Display panel, manufacturing method thereof and display device

Publications (1)

Publication Number Publication Date
CN116419637A true CN116419637A (en) 2023-07-11

Family

ID=87049137

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310340383.6A Pending CN116419637A (en) 2023-03-31 2023-03-31 Display panel, manufacturing method thereof and display device

Country Status (1)

Country Link
CN (1) CN116419637A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117062488A (en) * 2023-10-12 2023-11-14 惠科股份有限公司 Display panel and display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117062488A (en) * 2023-10-12 2023-11-14 惠科股份有限公司 Display panel and display device
CN117062488B (en) * 2023-10-12 2024-01-12 惠科股份有限公司 Display panel and display device

Similar Documents

Publication Publication Date Title
US11737316B2 (en) Display panels and manufacturing methods thereof
CN110289298B (en) Display device, display panel thereof and transparent display panel
CN109119453B (en) Display panel, manufacturing method thereof and display device
CN110164938B (en) Display panel and display device
US20210141304A1 (en) Mask strips, array substrates and display screens
US9453948B2 (en) Color filter substrate, manufacturing method thereof and display device
CN111682048B (en) Light-transmitting display panel and display panel
US11296184B2 (en) Display panels, display screens, and display terminals
CN109713018B (en) Display device and manufacturing method thereof
WO2021017320A1 (en) Organic light-emitting device, display apparatus, and manufacturing method of organic light-emitting device
US10522602B1 (en) Organic light-emitting display panel and display device
US11139453B2 (en) Flexible display panel having blocking walls
CN109871159B (en) Touch display module and touch display screen
US20120032201A1 (en) Light-emitting display apparatus
CN116648094A (en) Display panel and display device
CN108987447B (en) OLED panel and display device
CN111769210B (en) Display substrate, preparation method thereof and display device
US20210328183A1 (en) Display Substrate Panel and Preparation Method Thereof, and Display Panel
US11545651B2 (en) Optical film, display screen assembly and display device
US20220093690A1 (en) Display panel, display screen and display device
CN111951678A (en) Display panel and display device
CN116419637A (en) Display panel, manufacturing method thereof and display device
CN111987120A (en) Pixel display assembly, screen display assembly, display screen and terminal
US20240099079A1 (en) Display apparatus, and display panel and manufacturing method therefor
KR102608509B1 (en) Display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination