Display panel and its control method, display device

Abstract

This application provides a display panel and its control method and display device. The display panel includes multiple rows of pixel structures extending along a first direction. Each row of pixel structures includes at least one first light-emitting element row and at least one second light-emitting element row. The first and second light-emitting element rows each include at least one light-emitting element. The orthographic projection of the light-shielding layer on the back panel does not overlap with the orthographic projection of the first light-emitting element row on the back panel. The orthographic projection of the light-shielding layer on the back panel does not overlap with the orthographic projection of the multiple light-emitting elements in the second light-emitting element row on the back panel, but overlaps with the orthographic projection of the pixel demarcation layer between the multiple light-emitting elements in the second light-emitting element row on the back panel. This application turns off all first light-emitting element units and turns on all second light-emitting element units. Because the light-shielding layer blocks the peripheral light emitted by the light-emitting elements in the second light-emitting element units, the display viewing angle can be narrowed, realizing flexible switching between sharing mode and privacy mode.

Description

TECHNICAL FIELD

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

[0002] AMOLED (Active-matrix organic light emitting diode) has the characteristics of self-luminous, wide viewing angle, short response time, high luminous efficiency, wide color gamut, low operating voltage, etc., so it is called the next generation display technology.

[0003] At present, users pay more and more attention to the privacy protection performance of AMOLED display panel, however, users can only use the corresponding display device in the privacy protection state, when the user does not need to use the privacy protection function, it cannot be switched back to the sharing state mode, which brings inconvenience to the use of users and reduces the user experience. SUMMARY

[0004] The present application aims at the shortcomings of the prior art, and provides a display panel, a control method thereof and a display device, to solve the technical problem that the prior display panel cannot switch between sharing state and privacy protection state.

[0005] In a first aspect, the embodiments of the present application provide a display panel, comprising

[0006] a back plate;

[0007] a pixel definition layer located on one side of the back plate, the pixel definition layer comprising a plurality of pixel openings;

[0008] a plurality of light emitting elements located in the plurality of pixel openings, the light emitting element comprising a first electrode, a second electrode and a light emitting layer located between the first electrode and the second electrode, the back plate being configured to drive the plurality of light emitting elements to emit light;

[0009] a light shielding layer located on the side of the pixel definition layer away from the back plate;

[0010] wherein the display panel comprises a plurality of pixel structure rows each extending along a first direction, each of the pixel structure rows comprising at least one first light emitting element row and at least one second light emitting element row, the first light emitting element row and the second light emitting element row each comprising at least one light emitting element, and the first direction being parallel to the back plate;

[0011] the light shielding layer has no overlap with the first light emitting element row on the back plate in orthographic projection;

[0012] A normal projection of the light-shielding layer on the back plate does not overlap with normal projections of the plurality of light-emitting elements in the second row of light-emitting elements on the back plate, and overlaps with normal projections of the pixel defining layers between the plurality of light-emitting elements in the second row of light-emitting elements on the back plate.

[0013] Optionally, a normal projection of the light-shielding layer on the back plate is located within normal projections of the pixel defining layers between the plurality of light-emitting elements in the second row of light-emitting elements on the back plate.

[0014] Optionally, the row of pixel structures includes a plurality of pixel structures, the first row of light-emitting elements includes a plurality of first light-emitting element units, and the second row of light-emitting elements includes a plurality of second light-emitting element units; the pixel structure includes the first light-emitting element unit and the second light-emitting element unit in the same column arranged along a second direction.

[0015] If the display panel is in a sharing state, the first light-emitting element unit and the second light-emitting element unit in each pixel structure emit light; if the display panel is in a privacy state, the first light-emitting element unit in each pixel structure does not emit light, and the second light-emitting element unit in each pixel structure emits light; the second direction is parallel to the back plate, the first direction has a design angle with the second direction, and the design angle is greater than 0° and not greater than 90°.

[0016] Optionally, the first light-emitting element unit includes a first light-emitting element, a second light-emitting element, and a third light-emitting element; and the second light-emitting element unit includes a fourth light-emitting element, a fifth light-emitting element, and a sixth light-emitting element.

[0017] Along the second direction, the second light-emitting element, the first light-emitting element, the fourth light-emitting element, and the fifth light-emitting element are arranged in sequence, and the third light-emitting element and the sixth light-emitting element are arranged in sequence.

[0018] Along the first direction, the second light-emitting element and the third light-emitting element are arranged in sequence, and the fifth light-emitting element and the sixth light-emitting element are arranged in sequence.

[0019] Optionally, a first edge of the second light-emitting element away from the first light-emitting element and a first edge of the third light-emitting element away from the sixth light-emitting element are located on the same straight line, and / or a first edge of the fifth light-emitting element away from the fourth light-emitting element and a first edge of the sixth light-emitting element away from the third light-emitting element are located on the same straight line.

[0020] Optionally, the first light emitting element unit comprises a first light emitting element, a second light emitting element and a third light emitting element arranged in sequence along the first direction; and the second light emitting element unit comprises a fourth light emitting element, a fifth light emitting element and a sixth light emitting element arranged in sequence along the first direction.

[0021] Along the second direction, the first light emitting element and the fourth light emitting element are arranged in sequence, the second light emitting element and the fifth light emitting element are arranged in sequence, and the third light emitting element and the sixth light emitting element are arranged in sequence.

[0022] Optionally, the first light emitting element unit comprises a first light emitting element, a second light emitting element and a third light emitting element; the second light emitting element unit comprises a fourth light emitting element, a fifth light emitting element and a sixth light emitting element; the first light emitting element, the third light emitting element, the sixth light emitting element and the fourth light emitting element constitute a virtual quadrilateral, and the second light emitting element and the fifth light emitting element are located in a middle region of the virtual quadrilateral.

[0023] Along the second direction, the first light emitting element is opposite to the sixth light emitting element, the second light emitting element is opposite to at least part of the fifth light emitting element, and the third light emitting element is opposite to the fourth light emitting element.

[0024] Optionally, along the first direction, one first light emitting element or one third light emitting element is shared between two adjacent first light emitting element units; and one fourth light emitting element or one sixth light emitting element is shared between two adjacent second light emitting element units.

[0025] Optionally, the first light emitting element and the fourth light emitting element, the second light emitting element and the fifth light emitting element, and the third light emitting element and the sixth light emitting element are light emitting elements of the same color.

[0026] Optionally, the display panel further comprises a filter, which is arranged between the light emitting layer and the light shielding layer; or the display panel further comprises a polarizer, which is arranged on a side of the light shielding layer away from the light emitting layer.

[0027] In a second aspect, an embodiment of the present application provides a display device comprising the display panel of the first aspect.

[0028] In a third aspect, an embodiment of the present application provides a control method of the display panel of the first aspect, comprising:

[0029] If the display panel is in the anti-peeping state, each first light emitting element row is turned off, each second light emitting element row is turned on, and each light emitting element of each second light emitting element row emits light for display.

[0030] If the display panel is in the sharing state, each first light emitting element row and each second light emitting element row is turned on, so that each light emitting element of each first light emitting element row and each light emitting element of each second light emitting element row emits light to display.

[0031] The technical scheme provided by the embodiments of the present application has the following beneficial technical effects:

[0032] The orthogonal projection of the light shielding layer on the back plate does not overlap with the orthogonal projection of the first light emitting element row on the back plate, meaning that the light shielding layer has no shielding effect on the first light emitting element row. The orthogonal projection of the light shielding layer on the back plate does not overlap with the orthogonal projection of the plurality of light emitting elements in the second light emitting element row on the back plate, and overlaps with the orthogonal projection of the pixel defining layer between the plurality of light emitting elements in the second light emitting element row on the back plate. That is, each light emitting element of the second light emitting element row can emit light to display, but the light shielding layer can shield the light emitted by each light emitting element of the second light emitting element row in all directions, which can help to minimize or block the lateral display viewing angle of each light emitting element of the second light emitting element.

[0033] When the display panel is in the sharing state, all first light emitting element units and all second light emitting element units in each pixel structure row emit light, which can make the display viewing angle of the display panel larger. When the display panel is in the privacy state, all first light emitting element units in each first light emitting element row are turned off, and all second light emitting element units in each second light emitting element row are turned on. Because the light shielding layer blocks the peripheral light emission of the light emitting elements in the second light emitting element unit, the display viewing angle can be reduced, which can help the display panel to realize the privacy function. Therefore, the display panel of the present application can flexibly switch between the sharing state and the privacy state to meet the needs of customers.

[0034] Additional aspects and advantages of the present application will be described in the following description and become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0036] Figure 1 A film layer schematic diagram of a display panel provided by an embodiment of the present application;

[0037] Figure 2 Another film layer schematic diagram of a display panel provided by an embodiment of the present application;

[0038] Figure 3 A first arrangement of light emitting elements in a pixel structure row provided by an embodiment of the present application;

[0039] Figure 4 Fig. 1 is a schematic view of a pixel structure row according to an embodiment of the present application; Figure 3 Fig. 2 is a schematic view of a cross section along AA of the pixel structure row shown in Fig. 1;

[0040] Figure 5 Fig. 3 is a schematic view of a structure of a light shielding layer according to an embodiment of the present application;

[0041] Figure 6 Fig. 4 is a schematic view of an arrangement of light emitting elements of a pixel structure row according to an embodiment of the present application;

[0042] Figure 7 Fig. 5 is a schematic view of a structure of a light shielding layer according to an embodiment of the present application;

[0043] Figure 8 Fig. 6 is a schematic view of an arrangement of light emitting elements of a pixel structure row according to an embodiment of the present application;

[0044] Figure 9 Fig. 7 is a schematic view of an arrangement of light emitting elements of a pixel structure row according to an embodiment of the present application;

[0045] Figure 10 Fig. 8 is a schematic view of a structure of a light shielding layer according to an embodiment of the present application.

[0046] Explanation of Reference Numerals:

[0047] 1 - pixel structure row; AA - cross section line; B - first width; C - second width; D - hole row; E - virtual quadrangle; F - intermediate region;

[0048] 11 - first light emitting element row; 111 - first light emitting element unit; 1111 - first light emitting element; 1112 - second light emitting element; 1113 - third light emitting element;

[0049] 12 - second light emitting element row; 121 - second light emitting element unit; 1211 - fourth light emitting element; 1212 - fifth light emitting element; 1213 - sixth light emitting element;

[0050] 13 - pixel structure;

[0051] 10 - light emitting functional layer; 101 - light emitting element; 1011 - light emitting layer; 1012 - first electrode; 1013 - second electrode;

[0052] 20 - light shielding layer; 201 - opening portion; 202 - first hole; 203 - second hole; 204 - third hole;

[0053] 30 - back plate;

[0054] 40 - filter;

[0055] 50 - polarizing plate;

[0056] 60- cover plate

[0057] 70- pixel defining layer; 701- pixel opening DETAILED DESCRIPTION

[0058] Embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood that the embodiments described below in conjunction with the drawings are exemplary descriptions of the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0059] Those skilled in the art can understand that the singular forms "a", "an" and "the" used herein include plural forms, unless specifically stated otherwise. It should be further understood that the use of the term "comprise" in the specification of the present application means that the features, integers, steps, operations, elements and / or components described exist, but does not exclude other features, information, data, steps, operations, elements, components and / or combinations thereof supported by the present technology. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" can be implemented as "A", or as "B", or as "A and B".

[0060] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below in conjunction with the accompanying drawings.

[0061] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. It should be noted that the following embodiments can be mutually referenced, borrowed or combined, and the same terms, similar features and similar implementation steps in different embodiments will not be described repeatedly.

[0062] It should be noted that the first direction and the second direction are both parallel to the back plate 30, and the first direction and the second direction have a design angle. The first direction can be a row direction or a column direction, and the second direction can be a column direction or a row direction. The design angle between the row direction and the column direction can be designed according to specific needs.

[0063] The display panel provided by the embodiments of the present application has a structure as shown in Figures 1 to 10 The display panel provided by the embodiments of the present application has a structure as shown in Figure 4The pixel defining layer 70 is located on the side of the back plate, and the pixel defining layer includes a plurality of pixel openings 701. The light-emitting functional layer 10 is located on the side of the pixel defining layer 70 away from the back plate 30; and the light-blocking layer 20 is arranged on the light-emitting side of the light-emitting functional layer 10. The light-emitting functional layer 10 further includes a plurality of light-emitting elements 101, and the plurality of light-emitting elements 101 are located in the plurality of pixel openings 701. The light-emitting element 101 includes a first electrode 1012, a second electrode 1013, and a light-emitting layer 1011 located between the first electrode 1012 and the second electrode 1013, and the back plate 30 is configured to drive the plurality of light-emitting elements 101 to emit light.

[0064] The light-emitting functional layer 10 includes a plurality of pixel structure rows 1 each extending along the first direction, and each pixel structure row 1 includes at least one first light-emitting element row 11 and at least one second light-emitting element row 12; and the first light-emitting element row 11 and the second light-emitting element row 12 respectively include at least one light-emitting element 101.

[0065] The light-blocking layer 20 has no overlap with the first light-emitting element row 11 on the back plate 30. The light-blocking layer 20 has no overlap with the plurality of light-emitting elements 101 in the second light-emitting element row 12 on the back plate 30, and has overlap with the pixel defining layer 70 between the plurality of light-emitting elements 101 in the second light-emitting element row 12 on the back plate 30.

[0066] In the embodiment, the light-blocking layer 20 has no overlap with the first light-emitting element row 11 on the back plate 30, which means that the light-blocking layer 20 has no shielding effect on the first light-emitting element row 11.

[0067] The light-blocking layer 20 has no overlap with the plurality of light-emitting elements 101 in the second light-emitting element row 12 on the back plate 30, and has overlap with the pixel defining layer 70 between the plurality of light-emitting elements 101 in the second light-emitting element row 12 on the back plate 30. That is to say, each light-emitting element of the second light-emitting element row 12 can emit light for display, but the light-blocking layer 20 can block the light emitted from the side of each light-emitting element of the second light-emitting element row 12, which can be conducive to minimizing the side display viewing angle of each light-emitting element of the second light-emitting element row 12.

[0068] Optionally, the light-blocking layer 20 can be a black matrix.

[0069] It should be noted that, with reference to the above description of the first aspect of the present application, Figure 3The width of the first light emitting element row 11 along the second direction is a first width B, and the width of the second light emitting element row 12 along the second direction is a second width C. When the demand for the privacy state of the display panel is greater than the demand for the sharing state, the second width C can be greater than the first width B; when the demand for the sharing state of the display panel is greater than the demand for the privacy state, the first width B can be greater than the second width C. When the demand for the sharing state of the display panel is balanced with the demand for the privacy state, the first width B can be equal to the second width C.

[0070] Optionally, the orthographic projection of the light shielding layer 20 on the back plate 30 is located within the orthographic projection of the pixel boundary layer 70 on the back plate 30 between the plurality of light emitting elements 101 in the second light emitting element row 12.

[0071] In this embodiment, the light shielding layer 20 can shield the light emitted from the side of each light emitting element in the second light emitting element row 12, which can help to minimize the lateral display viewing angle of each light emitting element in the second light emitting element row 12.

[0072] Specifically, the orthographic projection of the light shielding layer 20 on the back plate 30 coincides with the orthographic projection of the pixel boundary layer 70 on the back plate 30 between the plurality of light emitting elements 101 in the second light emitting element row 12. For the pixel boundary layer 70 shared by the first light emitting element row 11 and the second light emitting element row 12, the light shielding layer 20 can cover one side of the shared pixel boundary layer 70 close to the second light emitting element row 12. The area covered by the light shielding layer 20 can be half, or one half, or three quarters of the area of the pixel boundary layer 70, as long as the light shielding layer 20 does not affect the light emission from the side of the light emitting element 101 in the first light emitting element row 11, and the light shielding layer 20 can block the light emission from the side of the light emitting element 101 in the second light emitting element row 12.

[0073] Optionally, with reference to Figure 3 The pixel structure row 1 includes a plurality of pixel structures 13, the first light emitting element row 11 includes a plurality of first light emitting element units 111, and the second light emitting element row 12 includes a plurality of second light emitting element units 121. The pixel structure 13 includes the first light emitting element unit 111 and the second light emitting element unit 121 in the same column arranged along the second direction.

[0074] If the display panel is in the sharing state, the first light emitting element unit 111 and the second light emitting element unit 121 in each pixel structure 13 emit light; if the display panel is in the privacy state, the first light emitting element unit 111 in each pixel structure 13 does not emit light, and the second light emitting element unit 121 in each pixel structure 13 emits light. The second direction is parallel to the back plate 30, and the first direction has a design angle with the second direction.

[0075] In the embodiment, the plurality of first light emitting element units 111 are arranged along the first direction (row direction), and the plurality of second light emitting element units 121 are arranged along the first direction (row direction).

[0076] The pixel structure 13 includes the first light emitting element unit 111 and the second light emitting element unit 121 in the same column, that is, the first light emitting element unit 111 and the second light emitting element unit 121 are arranged along the second direction (column direction).

[0077] When the display panel is in the sharing state, the first light emitting element unit 111 and the second light emitting element unit 121 in each pixel structure 13 emit light, which can make the display viewing angle of the display panel larger. When the display panel is in the privacy state, the first light emitting element unit 111 in each pixel structure 13 is turned off, and the second light emitting element unit 121 in each pixel structure 13 is turned on. Thus, in the privacy state, because the light shielding layer 20 blocks the light emission of the light emitting element in the second light emitting element unit 121 from each side, the display viewing angle of each side can be reduced, which can be beneficial to the display panel to realize the privacy function.

[0078] Optionally, the first light emitting element row 11 and the second light emitting element row 12 are arranged alternately.

[0079] In the embodiment, the first light emitting element row 11 and the second light emitting element row 12 are in different rows, that is, the first light emitting element row 11 and the second light emitting element row 12 are displayed in a straight line, the first light emitting element row 11 is not shielded, and the second light emitting element row 12 uses the light shielding layer 20 to shield the periphery of the light emitting element of the second light emitting element row 12. The light shielding layer 20 is beneficial to reduce the display viewing angle of the second light emitting element row 12. The first light emitting element row 11 and the second light emitting element row 12 are arranged alternately, and in the privacy state, even if the first light emitting element row 11 is turned off and only the second light emitting element row 12 displays, the display panel can also display normally.

[0080] The present application improves the pixel arrangement mode of the first light emitting element unit 111 and the second light emitting element unit 121, so that each first light emitting element unit 111 in each row and each second light emitting element unit 121 in each row do not cross. The following will introduce several arrangement modes of the first light emitting element unit 111 and the second light emitting element unit 121.

[0081] In the first achievable mode, the first light emitting element unit 111 includes a first light emitting element 1111, a second light emitting element 1112, and a third light emitting element 1113; the second light emitting element unit 121 includes a fourth light emitting element 1211, a fifth light emitting element 1212, and a sixth light emitting element 1213.

[0082] In the second direction, the second light emitting element 1112, the first light emitting element 1111, the fourth light emitting element 1211 and the fifth light emitting element 1212 are arranged in sequence, and the third light emitting element 1113 and the sixth light emitting element 1213 are arranged in sequence.

[0083] In the first direction, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence, and the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence.

[0084] In this embodiment, with reference to Figure 3 In the first direction, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence; in the second direction, the second light emitting element 1112 and the first light emitting element 1111 are arranged in sequence. That is, the first light emitting element 1111 is located in the adjacent row of the row where the second light emitting element 1112 and the third light emitting element 1113 are located, and the first light emitting element 1111 needs to borrow the second light emitting element 1112 and the third light emitting element 1113 in the adjacent row for display. Similarly, in the first direction, the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence; in the second direction, the fourth light emitting element 1211 and the fifth light emitting element 1212 are arranged in sequence, and the fourth light emitting element 1211 is located in the adjacent row of the row where the fifth light emitting element 1212 and the sixth light emitting element 1213 are located, and the fourth light emitting element 1211 needs to borrow the fifth light emitting element 1212 and the sixth light emitting element 1213 in the adjacent row for display.

[0085] Exemplarily, Figure 3 In the first direction, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence, and the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence. Figure 3 In the first direction, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence, and the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence. Figure 3 In the first direction, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence, and the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence. Figure 3 In the first direction, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence, and the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence.

[0086] Optionally, as Figure 5As shown, the light shielding layer 20 includes a plurality of opening portions 201 extending along the first direction and a plurality of hole rows D extending along the first direction, the opening portions 201 and the hole rows D are arranged alternately along the second direction.

[0087] Each hole row D includes a plurality of arranged hole groups, and each hole group includes a first hole 202, a second hole 203 and a third hole 204.

[0088] The opening portion 201 corresponds to the first display area where the first light emitting element row 11 is located. The hole row D corresponds to the second display area where the second light emitting element row 12 is located. The hole group corresponds to the second light emitting element unit 121, and the first hole 202, the second hole 203 and the third hole 204 correspond to the fourth light emitting element 1211, the fifth light emitting element 1212 and the sixth light emitting element 1213 in the second light emitting element unit 121 respectively.

[0089] In this embodiment, referring to Figure 5 , in order to clearly show the light shielding layer 20, the light emitting elements 101 of the first light emitting element row 11 are not displayed, and the first light emitting element row 11 corresponds to the opening portion 201 of the light shielding layer 20, that is, the light shielding layer 20 has no shielding effect on the first light emitting element row 11. The first hole 202, the second hole 203 and the third hole 204 correspond to the fourth light emitting element 1211, the fifth light emitting element 1212 and the sixth light emitting element 1213 in the second light emitting element unit 121 respectively. That is, each light emitting element 101 of the second light emitting element row 12 is exposed to the light shielding layer 20. The light shielding layer 20 covers at least the periphery of each light emitting element 101 of the second light emitting element row 12 to block the light emission of each light emitting element 101 of the second light emitting element row 12 from the periphery, so as to facilitate the reduction of the display angle of the second light emitting element row 12.

[0090] Optionally, the second light emitting element 1112 is away from the first edge of the first light emitting element 1111 and the third light emitting element 1113 is away from the first edge of the sixth light emitting element 1213 on the same straight line, and / or the fifth light emitting element 1212 is away from the first edge of the fourth light emitting element 1211 and the sixth light emitting element 1213 is away from the first edge of the third light emitting element 1113 on the same straight line.

[0091] In this embodiment, referring to Figure 3On the basis of guaranteeing the spacing requirement between the third light emitting element 1113 and the sixth light emitting element 1213, the first edge of the second light emitting element 1112 away from the first light emitting element 1111 and the first edge of the third light emitting element 1113 away from the sixth light emitting element 1213 are located on the same straight line, and the first edge of the fifth light emitting element 1212 away from the fourth light emitting element 1211 and the first edge of the sixth light emitting element 1213 away from the third light emitting element 1113 are located on the same straight line, which can facilitate the third light emitting element 1113 and the sixth light emitting element 1213 to be made as large as possible, thereby facilitating the improvement of the aperture ratio of the display panel.

[0092] Optionally, the first light emitting element 1111 and the fourth light emitting element 1211 are light emitting elements of the same color, the second light emitting element 1112 and the fifth light emitting element 1212 are light emitting elements of the same color, and the third light emitting element 1113 and the sixth light emitting element 1213 are light emitting elements of the same color.

[0093] In the embodiment, the colors of the first light emitting element 1111 and the fourth light emitting element 1211 can both be red, the colors of the second light emitting element 1112 and the fifth light emitting element 1212 can both be green, and the colors of the third light emitting element 1113 and the sixth light emitting element 1213 can both be blue. Alternatively, the first light emitting element 1111 and the fourth light emitting element 1211 can both be green, and the colors of the second light emitting element 1112 and the fifth light emitting element 1212 can both be red.

[0094] It should be noted that the colors of the first light emitting element 1111, the second light emitting element 1112, the third light emitting element 1113, the fourth light emitting element 1211, the fifth light emitting element 1212 and the sixth light emitting element 1213 all refer to the colors of the respective light emitting layers 1011.

[0095] In the second implementable manner, the first light emitting element unit 111 includes the first light emitting element 1111, the second light emitting element 1112 and the third light emitting element 1113 arranged in sequence along the first direction; and the second light emitting element unit 121 includes the fourth light emitting element 1211, the fifth light emitting element 1212 and the sixth light emitting element 1213 arranged in sequence along the first direction.

[0096] Along the second direction, the first light emitting element 1111 and the fourth light emitting element 1211 are arranged in sequence, the second light emitting element 1112 and the fifth light emitting element 1212 are arranged in sequence, and the third light emitting element 1113 and the sixth light emitting element 1213 are both arranged in sequence.

[0097] In the embodiment, the first light emitting element 1111, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence along the first direction, and the fourth light emitting element 1211, the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence along the first direction. This arrangement can facilitate dividing the first light emitting element 1111, the second light emitting element 1112 and the third light emitting element 1113 into one row, and dividing the fourth light emitting element 1211, the fifth light emitting element 1212 and the sixth light emitting element 1213 into another row.

[0098] Exemplarily, as shown in Figure 6 In the embodiment, the first light emitting element 1111, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence along the first direction, and the fourth light emitting element 1211, the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence along the first direction. This arrangement can facilitate making the first light emitting element row 11 and the second light emitting element row 12 display in a single row.

[0099] Exemplarily, as shown in Figure 7 In the embodiment, the first light emitting element 1111, the second light emitting element 1112 and the third light emitting element 1113 are arranged in sequence along the first direction, and the fourth light emitting element 1211, the fifth light emitting element 1212 and the sixth light emitting element 1213 are arranged in sequence along the first direction. This arrangement can facilitate making the first light emitting element row 11 and the second light emitting element row 12 display in a single row.

[0100] Optionally, the first light emitting element 1111 and the fourth light emitting element 1211, the second light emitting element 1112 and the fifth light emitting element 1212, and the third light emitting element 1113 and the sixth light emitting element 1213 are light emitting elements of the same color.

[0101] In the embodiment, the first light emitting element 1111 and the fourth light emitting element 1211 can both be red, the second light emitting element 1112 and the fifth light emitting element 1212 can both be green, and the third light emitting element 1113 and the sixth light emitting element 1213 can both be blue. Alternatively, the first light emitting element 1111 and the fourth light emitting element 1211 can both be green, and the second light emitting element 1112 and the fifth light emitting element 1212 can both be red.

[0102] In the third implementable manner, referring to Figure 8The first light emitting element unit 111 includes a first light emitting element 1111, a second light emitting element 1112 and a third light emitting element 1113; the second light emitting element unit 121 includes a fourth light emitting element 1211, a fifth light emitting element 1212 and a sixth light emitting element 1213; the first light emitting element 1111, the third light emitting element 1113, the sixth light emitting element 1213 and the fourth light emitting element 1211 constitute a virtual quadrilateral E, and the second light emitting element 1112 and the fifth light emitting element 1212 are located in a middle region F of the virtual quadrilateral E.

[0103] In the second direction, the first light emitting element 1111 is opposite to the fourth light emitting element 1211, the second light emitting element 1112 is opposite to at least part of the fifth light emitting element 1212, and the third light emitting element 1113 is opposite to the sixth light emitting element 1213.

[0104] In the embodiment, the first light emitting element unit 111, the third light emitting element 1113, the sixth light emitting element 1213 and the fourth light emitting element 1211 constitute a virtual quadrilateral E, and the second light emitting element 1112 and the fifth light emitting element 1212 are located in a middle region F of the virtual quadrilateral E. This arrangement can facilitate the division of the first light emitting element row 11 and the second light emitting element row 12. Figure 8

[0105] It should be noted that the second light emitting element 1112 and the fifth light emitting element 1212 can be partially opposite, thereby improving the pixel aperture ratio. Alternatively, the second light emitting element 1112 and the fifth light emitting element 1212 can be completely opposite.

[0106] Optionally, in the first direction, one first light emitting element 1111 or one third light emitting element 1113 is shared between two adjacent first light emitting element units 111; one fourth light emitting element 1211 or one sixth light emitting element 1213 is shared between two adjacent second light emitting element units 121.

[0107] In the embodiment, because one first light emitting element 1111 or one third light emitting element 1113 is shared between two adjacent first light emitting element units 111, and one fourth light emitting element 1211 or one sixth light emitting element 1213 is shared between two adjacent second light emitting element units 121, more light emitting elements can be arranged, thereby improving the pixel aperture ratio.

[0108] Optionally, the first light emitting element 1111 and the fourth light emitting element 1211 are light emitting elements of the same color, the second light emitting element 1112 and the fifth light emitting element 1212 are light emitting elements of the same color, and the third light emitting element 1113 and the sixth light emitting element 1213 are light emitting elements of the same color.

[0109] ​In this embodiment, the color of the first light emitting element 1111 and the fourth light emitting element 1211 can be red, the color of the second light emitting element 1112 and the fifth light emitting element 1212 can be green, and the color of the third light emitting element 1113 and the sixth light emitting element 1213 can be blue. Alternatively, the first light emitting element 1111 and the fourth light emitting element 1211 can be green, and the color of the second light emitting element 1112 and the fifth light emitting element 1212 can be red. As can be seen, this pixel arrangement can reduce the proportion of blue light in the harmful wave band of the display spectrum, and provide a better and healthier eye protection display for the user.

[0110] Exemplarily, referring to Figure 10 , the light shielding layer 20 is arranged at the periphery of each light emitting element in the second light emitting element row 12 to block the light emitted from the periphery of each light emitting element 101 in the second light emitting element row 12, so as to facilitate reducing the display angle of the second light emitting element row 12.

[0111] In the fourth implementable manner, referring to Figure 9 , the fourth arrangement of the light emitting element 101 is different from the third arrangement of the light emitting element 101 in that the third light emitting element 1113 of the first light emitting element row 11 in the middle pixel structure row 1 is opposite to the fourth light emitting element 1211 of the second light emitting element row 12 in the adjacent first row of pixel structure rows 1, and the first light emitting element 1111 of the first light emitting element row 11 in the middle pixel structure row 1 is opposite to the sixth light emitting element 1213 of the second light emitting element row 12 in the adjacent first row of pixel structure rows 1.

[0112] Optionally, the display panel further comprises a filter 40, and the filter 40 is arranged between the light emitting functional layer 10 and the light shielding layer 20.

[0113] In this embodiment, referring to Figure 1 , the filter 40 can be arranged between the light emitting functional layer 10 and the light shielding layer 20, for blocking the reflected light of the electrode, so as to improve the contrast of the display panel. Specifically, the filter 40 is COE.

[0114] Optionally, referring to Figure 2 , the display panel further comprises a polarizer 50, and the polarizer 50 is arranged on the side of the light shielding layer 20 away from the light emitting functional layer 10.

[0115] Optionally, the display panel further comprises a cover plate 60, and the cover plate 60 is arranged on the side of the light shielding layer 20 away from the light emitting functional layer 10.

[0116] Optionally, the back plate 30 comprises a substrate and a thin film transistor layer.

[0117] Based on the same inventive concept, the embodiment of the present application provides a display device, which comprises the display panel provided in the above embodiment.

[0118] In the embodiment, the display device comprises the display panel provided in the above embodiment, and the display device has the advantages of the display panel provided in the above embodiment, which will not be repeated here.

[0119] Based on the same inventive concept, the embodiment of the present application provides a control method of a display panel, which comprises:

[0120] If the display panel is in the privacy state, each first light emitting element row 11 is turned off, and each second light emitting element row 12 is turned on, so that each light emitting element of each second light emitting element row 12 emits light for display.

[0121] If the display panel is in the sharing state, each first light emitting element row 11 is turned on, and each second light emitting element row 12 is turned on, so that each light emitting element of each first light emitting element row 11 and each light emitting element of each second light emitting element row 12 emits light for display.

[0122] In the embodiment, when the display panel is in the sharing state, all the first light emitting element units 111 and all the second light emitting element units 121 emit light, which can make the display angle of the display panel larger. When the display panel is in the privacy state, all the first light emitting element units 111 are turned off, and all the second light emitting element units 121 are turned on. Thus, in the privacy state, the display angle can be reduced due to the blocking of the light emitted by the light emitting elements in the second light emitting element units 121 by the light shielding layer 20, which can be beneficial to the display panel to realize the privacy function.

[0123] By using the embodiment of the present application, the following advantages can be achieved:

[0124] In the embodiment of the present application, the second display area where the second light emitting element row is located is provided with a light shielding layer, and each light emitting element of the second light emitting element row is exposed to the light shielding layer. The light shielding layer covers at least the periphery of each light emitting element of the second light emitting element row. That is, each light emitting element of the second light emitting element can emit light for display, but the light shielding layer can block the light emitted from the periphery of each light emitting element of the second light emitting element, which can be beneficial to reducing the display angle of each light emitting element of the second light emitting element.

[0125] Those skilled in the art can understand that the steps, measures, and schemes in various operations, methods, and processes discussed in the present application can be alternated, changed, combined, or deleted. Further, other steps, measures, and schemes in various operations, methods, and processes discussed in the present application can also be alternated, changed, rearranged, decomposed, combined, or deleted. Further, steps, measures, and schemes in various operations, methods, and processes in the prior art can also be alternated, changed, rearranged, decomposed, combined, or deleted.

[0126] In the description of the present application, the directions or positional relationships indicated by the words "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are the exemplary directions or positional relationships based on the examples shown in the drawings, and are for the convenience of description or simplification of the description of the embodiments of the present application, and do not indicate or imply that the devices or components indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0127] The terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0128] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0129] In the description of the present application, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0130] It should be understood that although each step in the flowchart of the accompanying drawings is shown in sequence according to the indication of the arrow, the implementation sequence of the steps is not limited to the sequence indicated by the arrow. Unless explicitly stated herein, the steps in some implementation scenarios of the embodiments of the present application can be executed in other sequences as required. Moreover, part or all of the steps in each flowchart can include multiple sub-steps or multiple stages based on the actual implementation scenario. Part or all of the sub-steps or stages can be executed at the same time or at different times. In the scenario where the execution times are different, the execution sequence of the sub-steps or stages can be flexibly configured as required, and the embodiments of the present application do not limit this.

[0131] The above only describes some embodiments of the present application, and it should be pointed out that, for those skilled in the art, other similar implementation means based on the technical concept of the present application without departing from the technical concept of the present application also belong to the protection scope of the embodiments of the present application.

Claims

1. A display panel, characterized by, The display panel comprises: a back plate; a pixel definition layer located on one side of the back plate, the pixel definition layer comprising a plurality of pixel openings; a plurality of light emitting elements located in the plurality of pixel openings, the light emitting element comprising a first electrode, a second electrode and a light emitting layer located between the first electrode and the second electrode, the back plate being configured to drive the plurality of light emitting elements to emit light; a light shielding layer located on the side of the pixel definition layer away from the back plate; wherein the display panel comprises a plurality of pixel structure rows each extending along a first direction, each of the pixel structure rows comprising at least one first light emitting element row and at least one second light emitting element row, the first light emitting element row and the second light emitting element row each comprising at least one light emitting element, the first direction being parallel to the back plate; a projection of the light shielding layer on the back plate does not overlap with a projection of the first light emitting element row on the back plate; a projection of the light shielding layer on the back plate does not overlap with a projection of a plurality of light emitting elements in the second light emitting element row on the back plate, and overlaps with a projection of the pixel definition layer between the plurality of light emitting elements in the second light emitting element row on the back plate; the pixel structure row comprises a plurality of pixel structures, the first light emitting element row comprises a plurality of first light emitting element units, and the second light emitting element row comprises a plurality of second light emitting element units; the pixel structure comprises the first light emitting element unit and the second light emitting element unit located in the same column arranged along a second direction; if the display panel is in a sharing state, the first light emitting element unit and the second light emitting element unit in each pixel structure emit light; if the display panel is in a privacy state, the first light emitting element unit in each pixel structure does not emit light, and the second light emitting element unit in each pixel structure emits light; the second direction is parallel to the back plate, the first direction and the second direction have a design angle, the design angle is greater than 0° and not greater than 90°; the first light emitting element unit comprises a first light emitting element, a second light emitting element and a third light emitting element; the second light emitting element unit comprises a fourth light emitting element, a fifth light emitting element and a sixth light emitting element; the first light emitting element, the third light emitting element, the sixth light emitting element and the fourth light emitting element constitute a virtual quadrilateral, and the second light emitting element and the fifth light emitting element are located in a middle region of the virtual quadrilateral; along the second direction, the first light emitting element is opposite to the sixth light emitting element, the second light emitting element is opposite to at least part of the fifth light emitting element, and the third light emitting element is opposite to the fourth light emitting element; along the first direction, one first light emitting element or one third light emitting element is shared between two adjacent first light emitting element units; one fourth light emitting element or one sixth light emitting element is shared between two adjacent second light emitting element units.

2. The display panel of claim 1, wherein, the projection of the light shielding layer on the back plate is located within the projection of the pixel definition layer between the plurality of light emitting elements in the second light emitting element row on the back plate.

3. The display panel of claim 1, wherein, The first light emitting element unit comprises a first light emitting element, a second light emitting element and a third light emitting element; the second light emitting element unit comprises a fourth light emitting element, a fifth light emitting element and a sixth light emitting element; Along the second direction, the second light emitting element, the first light emitting element, the fourth light emitting element and the fifth light emitting element are arranged in sequence, and the third light emitting element and the sixth light emitting element are arranged in sequence; Along the first direction, the second light emitting element and the third light emitting element are arranged in sequence, and the fifth light emitting element and the sixth light emitting element are arranged in sequence.

4. The display panel of claim 3, wherein, The first edge of the second light emitting element away from the first light emitting element and the first edge of the third light emitting element away from the sixth light emitting element are located on the same straight line, and / or the first edge of the fifth light emitting element away from the fourth light emitting element and the first edge of the sixth light emitting element away from the third light emitting element are located on the same straight line.

5. The display panel of claim 1, wherein, The first light emitting element unit comprises a first light emitting element, a second light emitting element and a third light emitting element arranged in sequence along the first direction; the second light emitting element unit comprises a fourth light emitting element, a fifth light emitting element and a sixth light emitting element arranged in sequence along the first direction; Along the second direction, the first light emitting element and the fourth light emitting element are arranged in sequence, the second light emitting element and the fifth light emitting element are arranged in sequence, and the third light emitting element and the sixth light emitting element are arranged in sequence.

6. The display panel of any one of claims 1, 4-5, wherein, The first light emitting element and the fourth light emitting element are light emitting elements of the same color, the second light emitting element and the fifth light emitting element are light emitting elements of the same color, and the third light emitting element and the sixth light emitting element are light emitting elements of the same color.

7. The display panel of claim 1, wherein, Further comprising a filter, which is arranged between the light emitting layer and the light shielding layer; or further comprising a polarizer, which is arranged on the side of the light shielding layer away from the light emitting layer.

8. A display device, characterized by The display panel comprises the display panel according to any one of claims 1 to 7.

9. A method of controlling a display panel as claimed in any one of claims 1 to 7, characterized in that The display panel comprises: If the display panel is in the anti-peep state, each first light emitting element row is turned off, each second light emitting element row is turned on, and each light emitting element of each second light emitting element row emits light for display; If the display panel is in the sharing state, each first light emitting element row and each second light emitting element row are turned on, and each light emitting element of each first light emitting element row and each second light emitting element row emits light for display.

Images