Touch display panel, display screen and electronic equipment

Abstract

The invention provides a touch display panel. The touch display panel comprises a display layer, a touch layer and a black matrix layer. The display layer comprises a plurality of pixel units distributed in rows and columns, and the plurality of pixel units comprise a plurality of pixel units of a first type and a plurality of pixel units of a second type. The touch layer is arranged on the display layer in a stacked mode and comprises a plurality of metal wires which are distributed in a determinant mode and form a light-transmitting area in a crossed mode. The black matrix layer is arranged on the touch control layer in a stacked mode, and metal wires of the black matrix layer and the touch control layer shield part of light emitting paths of the first type of pixel units so as to limit the display visual angle range of the first type of pixel units. The invention further provides a display screen and electronic equipment. The peep-proof effect can be effectively achieved.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a touch display panel, a display screen and an electronic device having the touch display panel. Background Art

[0002] At present, with the development of science and technology, the functions of electronic devices such as mobile phones are becoming increasingly rich, and people are increasingly relying on electronic devices such as mobile phones in their daily lives. At present, due to various needs, people usually use electronic devices such as mobile phones in crowded places. However, when there are many people around, the content displayed by the electronic devices is often seen by people around, exposing privacy. At present, anti-peep films are launched on the market. By sticking anti-peep films on electronic devices such as mobile phones, people around can be prevented from peeping and achieve the purpose of protecting personal privacy. However, the anti-peep film is based on the principle of blinds polarization, blocking part of the light. For example, the transmittance is low, and it is only about 70% when looking directly at the screen, resulting in a decrease in display brightness under the same luminous brightness of the electronic device. In order to increase the display brightness, the display brightness of the mobile phone itself, that is, the luminous brightness, has to be increased, which leads to an increase in luminous power and deterioration in power consumption. Moreover, the clarity of the anti-peep film is poor, with obvious graininess, which makes the screen font blurred and affects the user's perception. In addition, the anti-peep film is thick, and the fingerprint of the electronic device is easy to fail, resulting in low fingerprint recognition efficiency. It often takes several attempts to successfully recognize, affecting the user's experience of using fingerprint recognition for unlocking and payment. Summary of the invention

[0003] The present application provides a touch display panel, a display screen and an electronic device to solve the above problems.

[0004] In a first aspect, a touch display panel is provided, the touch display panel comprising a display layer, a touch layer and a black matrix layer. The display layer comprises a plurality of pixel units distributed in rows and columns, the plurality of pixel units comprising a plurality of first-type pixel units and a plurality of second-type pixel units. The touch layer is stacked on the display layer, the touch layer comprising a plurality of metal traces distributed in a determinant. The black matrix layer is stacked on the touch layer, wherein the black matrix frame and the metal traces of the touch layer block part of the light emitting path of the first-type pixel unit, thereby limiting the display viewing angle range of the first-type pixel unit, wherein the display viewing angle range of the first-type pixel unit is smaller than the display viewing angle range of the second-type pixel unit.

[0005] In a second aspect, a display screen is provided, the display screen comprising a glass cover plate and a touch display panel. The touch display panel comprises a display layer, a touch layer and a black matrix layer. The display layer comprises a plurality of pixel units distributed in rows and columns, the plurality of pixel units comprising a plurality of first-type pixel units and a plurality of second-type pixel units. The touch layer is stacked on the display layer, the touch layer comprising a plurality of metal traces distributed in a determinant. The black matrix layer is stacked on the touch layer, wherein the black matrix frame and the metal traces of the touch layer block part of the light emitting path of the first-type pixel unit, thereby limiting the display viewing angle range of the first-type pixel unit, wherein the display viewing angle range of the first-type pixel unit is smaller than the display viewing angle range of the second-type pixel unit.

[0006] In a third aspect, an electronic device is also provided, the electronic device comprising a display screen, the display screen comprising a glass cover plate and a touch display panel. The touch display panel comprises a display layer, a touch layer and a black matrix layer. The display layer comprises a plurality of pixel units distributed in rows and columns, the plurality of pixel units comprising a plurality of first-type pixel units and a plurality of second-type pixel units. The touch layer is stacked on the display layer, the touch layer comprising a plurality of metal traces distributed in a determinant. The black matrix layer is stacked on the touch layer, wherein the black matrix frame and the metal traces of the touch layer block part of the light emitting path of the first-type pixel unit, thereby limiting the display viewing angle range of the first-type pixel unit, wherein the display viewing angle range of the first-type pixel unit is smaller than the display viewing angle range of the second-type pixel unit.

[0007] The touch display panel, display screen and electronic device of the present application, by shielding part of the light emitting path of the first type of pixel unit through the metal wiring of the black matrix layer and the touch layer, limit the display viewing angle range of the first type of pixel unit, so that the display viewing angle range of the first type of pixel unit can be made smaller than the display viewing angle range of the second type of pixel unit. Thus, the touch display panel can only emit light and display through the first type of pixel unit when necessary, and since the display viewing angle range of the first type of pixel unit is small, a better anti-peeping effect can be achieved. In addition, in the present application, by shielding part of the light emitting path of the first type of pixel unit through the metal wiring of the black matrix layer and the touch layer, a larger range of shielding can be achieved, which can effectively improve the anti-peeping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0009] Figure 1The following is a schematic diagram showing a stacking structure of a partial structure of a touch display panel in an embodiment of the present application.

[0010] Figure 2 Schematic diagram of light emission path of a touch display panel in some embodiments of the present application.

[0011] Figure 3 Schematic diagram of a black matrix layer of a touch display panel in some embodiments of the present application.

[0012] Figure 4 It is a schematic plan view of a display layer of a touch display panel in some embodiments of the present application.

[0013] Figure 5 It is a further schematic plan view of the black matrix layer of the touch display panel in some embodiments of the present application.

[0014] Figure 6 This is another further schematic plan view of the black matrix layer of the touch display panel in some embodiments of the present application.

[0015] Figure 7 Schematic diagram of a touch layer of a touch display panel in some embodiments of the present application.

[0016] Figure 8 A schematic diagram of stacking a plurality of layers of a touch display panel in some embodiments of the present application is shown.

[0017] Fig. 9 Another schematic plan view of a display layer of a touch display panel in some embodiments of the present application.

[0018] Fig.10 It is a partial top view illustrating a partial structure of a touch display panel in some embodiments of the present application.

[0019] Fig.11 A schematic diagram of the stacking of display screens in some embodiments of the present application.

[0020] Fig.12 It is a schematic plan view of an electronic device in some embodiments of the present application.

[0021] Fig.13 Schematic diagram comparing brightness attenuation curves of electronic devices in some embodiments of the present application and a reference electronic device.

[0022] Fig.14 This is a structural block diagram of an electronic device in some embodiments of the present application. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "thickness", "width", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than implying or indicating that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The term "connection" in this application includes the meanings of physical structural connection, electrical connection, direct connection or indirect connection, and can be determined specifically according to the required connection situation. In the description of the embodiments of the present invention, the terms "first", "second", etc. are not specific, but are used to distinguish objects with the same name. If there is a description in the specification, the objects with the same name referred to by the terms "first", "second", etc. may be the same objects.

[0025] Please also read Figure 1 , is a schematic diagram of a stacking structure of a part of a touch display panel 100 in an embodiment of the present application. Figure 1 As shown, the touch display panel 100 includes a display layer 1, a touch layer 2 and a black matrix layer 3. The display layer 1 includes a plurality of pixel units 11 distributed in rows and columns, and the plurality of pixel units 11 include a plurality of first-type pixel units 12 and a plurality of second-type pixel units 13. The touch layer 2 is stacked on the display layer 1, wherein the black matrix frame 31 and the metal wiring 21 of the touch layer 2 block part of the light emitting path of the first-type pixel unit 12, thereby limiting the display viewing angle range of the first-type pixel unit 12, wherein the display viewing angle range of the first-type pixel unit 12 is smaller than the display viewing angle range of the second-type pixel unit 13.

[0026] Thus, the touch display panel 100 of the present application blocks part of the light emitting path of the first type of pixel unit 12 through the black matrix layer 3 and the metal wiring 21 of the touch layer 2, thereby limiting the display viewing angle range of the first type of pixel unit 12, so that the display viewing angle range of the first type of pixel unit 12 can be made smaller than the display viewing angle range of the second type of pixel unit 13. Thus, the touch display panel 100 can only emit light and display through the first type of pixel unit 12 when necessary, and since the display viewing angle range of the first type of pixel unit 12 is small, a better anti-peeping effect can be achieved. In addition, in the present application, by blocking part of the light emitting path of the first type of pixel unit 12 through the black matrix layer 3 and the metal wiring 21 of the touch layer 2, a larger range of blocking can be achieved, and the anti-peeping effect can be effectively improved.

[0027] In the present application, the display layer 1 includes a plurality of pixel units 11 distributed in rows and columns, and the plurality of pixel units 11 include a plurality of first-type pixel units 12 and a plurality of second-type pixel units 13, so that the plurality of first-type pixel units 12 and the plurality of second-type pixel units 13 are distributed in an array, that is, distributed in various regions of the display layer 1. Therefore, when the touch display panel 100 is required to emit light only through the first-type pixel unit 12, within the display viewing angle range of the first-type pixel unit 12, the user can normally view the display content of the touch display panel 100.

[0028] Among them, in the present application, the display viewing angle range of the first type of pixel unit 12 is smaller than the display viewing angle range of the second type of pixel unit 13, which may mean that the display viewing angle range of the first type of pixel unit 12 is a partial viewing angle range in the display viewing angle range of the second type of pixel unit 13.

[0029] Among them, in the present application, the "A" layer is stacked on the "B" layer, including that the "A" layer is in direct contact with the "B" layer, and is directly stacked on the "B" layer, and also includes that a "C" layer is arranged between the "A" layer and the "B" layer, and can be indirectly stacked on the "B" layer through the "C" layer. Among them, above or on a certain layer in the present application refers to the side of the layer facing the light-emitting surface of the touch display panel 100. Among them, in the present application, the areas of the various layers of the touch display panel 100 are roughly the same, that is, the projections of the various layers of the touch display panel 100 along the stacking direction roughly overlap, so as to form a touch display panel 100 with a multi-layer structure.

[0030] In some embodiments, Figure 1As shown, the light outlet K1 of the multiple pixel units 11 faces the side of the touch layer 2, and the display viewing angle within the display viewing angle range of each pixel unit 11 is an angle with the normal line L1 direction of the light outlet K1, wherein the display viewing angle within the display viewing angle range of each pixel unit 11 includes a 0° viewing angle.

[0031] That is, in some embodiments, the display viewing angle range of the pixel unit 11, that is, the first type of pixel unit 12 or the second type of pixel unit 13, is an angle range including 0° with the normal line L1 of the surface where the light outlet K1 of the pixel unit 11 is located, that is, a viewing angle range including the viewing angle in the direction of the normal line L1. Figure 1 As shown, the display viewing angle range of the first type pixel unit 12 includes viewing angles within an angle θ1 less than or equal to the normal line L1, and the display viewing angle range of the second type pixel unit 13 includes viewing angles within an angle θ0 less than or equal to the normal line L1.

[0032] Among them, the surface where the light outlet K1 of the pixel unit 11 is located is also the display surface or light outlet surface of the display layer 1. The normal line L1 direction of the light outlet K1 of the pixel unit 11 may also refer to the direction perpendicular to the display surface of the display layer 1 and toward one side of the display surface.

[0033] In some embodiments, the display viewing angle within the display viewing angle range of each pixel unit 11 may be specifically the angle between the unblocked outgoing light of the pixel unit 11 and the direction of the normal line L1 of the light outlet K1. That is, the display viewing angle range of each pixel unit 11 is the angle range formed by the angles between all outgoing light rays of the pixel unit 11 that are not blocked by the black matrix layer 3 and the touch layer 2 and can pass through the outermost layer of the touch display panel 100 and the normal line L1.

[0034] Among them, the display viewing angle range of the pixel unit 11 is the visible viewing angle range that can be viewed by the viewer, that is, the visible viewing angle range when the viewer looks directly at the display surface of the touch display panel 100, wherein, when the viewer is located directly in front of the touch display panel 100, the line of sight direction is parallel to the normal line L1, and the user's viewing angle and display viewing angle are 0° at this time, and the content displayed by the touch display panel 100 can be clearly viewed by the user, and when the user looks sideways at the touch display panel 100, the user's viewing angle at this time is the angle between the user's line of sight at the position of the pixel unit 11 and the normal line L1, and when the user's viewing angle is outside the display viewing angle range of the pixel unit 11, the user's eyes cannot receive the outgoing light emitted by the pixel unit 11, and cannot view the display content at the corresponding pixel unit 11 position. Therefore, by limiting the display viewing angle range of the first type pixel unit 12 to a smaller range, only the first type pixel unit 12 can be controlled to emit light as needed, which can effectively ensure that the display content of the touch display panel 100 cannot be viewed from the side at angles exceeding a certain range, thereby effectively achieving anti-peeping.

[0035] See also Figure 2 , is a schematic diagram of the light emission path of the touch display panel 100 in some embodiments of the present application.

[0036] Among them, Figure 2 As shown, each pixel unit 11 emits light in various directions from the light outlet to form a plurality of light outlet paths L2. In some embodiments, the black matrix layer 3 blocks part of the light outlet path L2 of the first type of pixel unit 12 and covers the first preset viewing angle interval of the first type of pixel unit 12, and the metal wiring 21 of the touch layer 2 blocks part of the light outlet path of the first type of pixel unit 12 and covers the second preset viewing angle interval of the first type of pixel unit 12, and the first preset viewing angle interval and the second preset viewing angle interval at least overlap at the boundary, and the viewing angles in the first preset viewing angle interval and the second preset viewing angle interval are both angles with the normal line L1 direction of the light outlet K1, that is, they are both angles between the light of the pixel unit 11 and the normal line L1 direction of the light outlet K1.

[0037] The first preset viewing angle interval and the second preset viewing angle interval are intervals ranging from a viewing angle greater than 0° to another viewing angle.

[0038] Thus, in some embodiments, the black matrix layer 3 blocks a portion of the light emitting path L2 of the first type of pixel unit 12 to cover the first preset viewing angle range of the first type of pixel unit 12, and the metal wiring 21 of the touch layer 2 blocks a portion of the light emitting path of the first type of pixel unit 12 to cover the second preset viewing angle range of the first type of pixel unit 12, and the first preset viewing angle range and the second preset viewing angle range at least overlap at a boundary, thereby being able to cover the wider viewing angle range of the first type of pixel unit 12, so that the display content of the touch display panel 100 when only the first type of pixel unit 12 is visible only within the corresponding display viewing angle range.

[0039] In some embodiments, the black matrix layer 3 and the metal wiring 21 of the touch layer 2 block part of the light emitting path of the first type of pixel unit 12, which may also mean that the black matrix layer 3 and the metal wiring 21 of the touch layer 2 cooperate to block part of the light emitting path of the first type of pixel unit 12. For example, the first preset viewing angle interval and the second preset viewing angle interval at least overlap at the boundary, and therefore, cooperate to form a continuous blocking viewing angle interval, which can ensure that the display content of the touch display panel 100 when only the first type of pixel unit 12 is visible only within the corresponding display viewing angle range.

[0040] Among them, in the present application, compared with only using the black matrix layer 3 for shielding, the cooperation of the black matrix layer 3 and the metal wiring 21 can shield a wider viewing angle range and achieve a better anti-peeping effect.

[0041] Among them, in the present application, multiple metal wirings 21 distributed in a matrix form a light-transmitting area Q1 for light from the pixel unit 11 to pass through, and multiple metal wirings 21 distributed in a matrix on the touch layer 2 cross to form a light-transmitting area Q1 for light from the pixel unit 11 to pass through.

[0042] In some embodiments, Figure 1 As shown, the black matrix layer 3 includes a plurality of black matrix frames 31 , each black matrix frame 31 corresponds to a first type pixel unit 12 , and the projection of the black matrix frame 31 on the display layer 1 surrounds the corresponding first type pixel unit 12 .

[0043] In some embodiments, the black matrix layer 3 is provided with a plurality of through holes, each of which is provided corresponding to each first-type pixel unit 12, and part of the light of the first-type pixel unit 12 is transmitted through the corresponding through hole. That is, in some embodiments, the black matrix layer 3 may also be a whole black shielding layer, and the black matrix layer 3 is provided with a plurality of through holes, each of which is provided corresponding to each first-type pixel unit 12. In some implementations, in the structure in which the black matrix layer 3 is provided with a plurality of through holes, it can also be understood as including the black matrix frame 31, in which case the plurality of black matrix frames 31 may be frames formed by the black matrix layer 3 around the through holes.

[0044] Among them, in the present application, the black matrix layer 3 includes a plurality of black matrix frames 31, and in some embodiments, the black matrix layer 3 may only include the black matrix frames 31 whose projections on the display layer 1 surround the corresponding first-type pixel units 12. That is, in some embodiments, the black matrix layer 3 and the metal wiring 21 of the touch layer 2 block part of the light-emitting path of the first-type pixel units 12, which may refer to the black matrix frames 31 of the black matrix layer 3 and the metal wiring 21 of the touch layer 2 blocking part of the light-emitting path of the first-type pixel units 12.

[0045] Wherein, whether the black matrix layer 3 is provided with a plurality of through holes and each through hole is provided corresponding to each first type pixel unit 12, or the black matrix layer 3 includes a plurality of black matrix frames 31, the black matrix layer 3 is formed with Figure 1 The light-transmitting area Q2 corresponding to the first type of pixel unit 12 is shown in FIG. 1 , wherein the light-transmitting area Q2 is the area corresponding to each of the through holes or the area surrounded by the black matrix frame 31 .

[0046] Among them, since the projection of the black matrix frame 31 on the display layer 1 surrounds the corresponding first-type pixel unit 12, the black matrix frame 31 actually surrounds and forms a light-transmitting area Q2 for the light of the first-type pixel unit 12 to further pass through. Therefore, for the first-type pixel unit 12, the outgoing light of the first-type pixel unit 12 with a smaller angle with the normal line L1 can pass through the light-transmitting area Q1 formed by the intersection of the multiple metal traces 21 distributed in a determinant on the touch layer 2 and the light-transmitting area Q2 formed by the black matrix frame 31, and can also block the outgoing light with a larger angle through the cooperation of the black matrix frame 31 and the metal traces 21 of the touch layer 2, which is beneficial to anti-peeping.

[0047] In some embodiments, in the present application, the normal line L1 of the pixel unit 11 can be regarded as the center line of the light outlet of the pixel unit 11, and because the pixel unit 11 is relatively small, in the present application, the pixel unit 11 is regarded as a point light source, and the outgoing light of the pixel unit 11 is emitted toward one side of the touch layer 2 in a direction parallel to or at an angle to the normal line L1.

[0048] in, Figure 1 and Figure 2 Only partial structures are shown, and only partial structures of some layers are shown. Figure 1 and Figure 2 In the figure, only one first-type pixel unit 12 and one second-type pixel unit are illustrated, and the first-type pixel unit 12 is arranged adjacent to the second-type pixel unit.

[0049] In some embodiments, at least part of the viewing angles in the first preset viewing angle range are smaller than the viewing angles in the second preset viewing angle range.

[0050] That is, in some embodiments, Figure 1 and Figure 2 As shown, since the touch layer 2 is arranged on the display layer 1, and the black matrix layer 3 is arranged on the touch layer 2. Therefore, the distance between the black matrix layer 3 and the display layer 1 will be greater than the distance between the touch layer 2 and the display layer 1. The multiple metal traces 21 distributed in a determinant on the touch layer 2 cross to form a light-transmitting area Q1 for the light of the pixel unit 11 to pass through. Therefore, the projection of the metal traces 21 on the touch layer 2 on the display layer 1 will surround each pixel unit 11, that is, it will also surround the first type of pixel unit 12. Since the projection of the black matrix frame 31 on the display layer 1 surrounds the corresponding first type of pixel unit 12, the projection of the metal traces 21 on the touch layer 2 on the display layer 1 and the projection of the black matrix frame 31 of the black matrix layer 3 on the display layer 1 will at least partially overlap, that is, as shown in FIG. Figure 1 and Figure 2 As shown, the distances between the side of the metal wiring 21 close to the normal line L1 and the side of the black matrix frame 31 close to the normal line L1 and the normal line L1 of the first type of pixel unit 12 are substantially equal. Therefore, the black matrix frame 31 of the black matrix layer 3 is more suitable for shielding the outgoing light with a relatively smaller viewing angle than the metal wiring 21 on the touch layer 2.

[0051] Therefore, in the present application, the black matrix frame 31 blocks part of the light emitting path L2 of the first type of pixel unit 12 and covers the first preset viewing angle interval with a smaller viewing angle, and the metal wiring 21 of the touch layer 2 blocks part of the light emitting path of the first type of pixel unit 12 and covers the second preset viewing angle interval with a larger viewing angle, so that the layout of the metal wiring 21 of the touch layer 2 can be more reasonably utilized. And through the cooperation between the black matrix frame 31 and the metal wiring 21, the width of the black matrix frame 31 can be smaller, and the metal wiring 21 and the black matrix frame 31 can be as close to the first type of pixel unit 12 as possible, so, for example Figure 1 and Figure 2 As shown, when the pixel unit 11 adjacent to the first-type pixel unit 12 is the second-type pixel unit 13, the second-type pixel unit 13 will be less obstructed by the black matrix frame 31 and the metal wiring 21, which is beneficial to improving the display viewing angle range of the second-type pixel unit 13.

[0052] Figure 1 and Figure 2 Specifically, it can be a cross-sectional schematic diagram taken along a certain target direction of the touch display panel 100, and the display viewing angle range of the first type of pixel unit 12 includes Figure 1 and Figure 2 The viewing angle range on the left side of the normal line L1 and the viewing angle range on the right side shown in the figure form a roughly symmetrical viewing angle range centered on the normal line L1. Figure 2 As shown, the display viewing angle range of the first type of pixel unit 12 includes a viewing angle range of 0° to θ1. Among them, the 0° viewing angle coincides with the direction of the normal L1, and the display viewing angle range on one side of the target direction is 0°~θ1, and the display viewing angle range on the other side of the target direction is also 0°~θ1, that is, the display viewing angle ranges on both sides of the target direction are the same. In some embodiments, the display viewing angle range of the first type of pixel unit 12 on one side of the target direction may also be different from the display viewing angle range on the other side of the target direction. In some embodiments, the display viewing angle range of the second type of pixel unit 13 includes a viewing angle range of 0° to θ0, and the display viewing angle range of the second type of pixel unit 13 on one side of the target direction may be the same as the display viewing angle range on the other side of the target direction, for example, both are in the viewing angle range of 0° to θ0, or they may be different, for example, only Figure 1 and Figure 2 The display viewing angle range of the left side shown in FIG. 1 is 0° to θ0, while the right side may not be the first type of pixel unit 12 and does not have the corresponding black matrix frame 31, and the display viewing angle range of the right side may be larger.

[0053] in, Figure 2FIG. 3 shows a frame edge 310 of the black matrix frame 31. Figure 2 As shown, each frame edge 310 of the black matrix frame 31 includes a first end 31a close to the normal L1 of the first type of pixel unit 12 and a second end 31b away from the normal L1, wherein the width of the frame edge 310 of the black matrix frame 31, that is, the distance between the first end 31a and the second end 31b of the frame edge 310 of the black matrix frame 31 satisfies so that the angle θ2 between the first end 31a and the line L11 between the light outlet K1 and the second end 31b and the line L12 between the light outlet K1 is the angle range covered by the first preset viewing angle interval.

[0054] In some embodiments, Figure 2 As shown, the metal wiring 21 of the touch layer 2 is located in the line L12 between the second end 31b of the frame edge 310 of the black matrix frame 31 and the light outlet K1. The metal wiring 21 also includes a first end 21a and a second end 21b along the width direction, and the first end 21a is close to the normal line L1. For example, the end or non-end position of the first end 21a of the metal wiring 21 close to the normal line L1 can be located in the line L12, so that it can cooperate with the black matrix frame 31 to form a continuous shielding, so that the first preset viewing angle interval and the second preset viewing angle interval at least overlap at the boundary.

[0055] Among them, Figure 2 As shown, the distance between the first end 21a of the metal trace 21 of the touch layer 2 close to the normal line L1 and the second end 21b satisfies that the angle θ3 between the line L13 between the first end 21a and the light outlet K1 and the line L14 between the second end 21b and the light outlet K1 is within the angle range covered by the second preset viewing angle interval.

[0056] in, Figure 2 In the figure, the first end 21a of the metal wiring 21 close to the normal line L1 is located on the line L12 as an example. At this time, the line L12 between the second end 31b and the light outlet K1 coincides with the line L13 between the first end 21a and the light outlet K1.

[0057] Among them, in the present application, the width of the metal trace 21, that is, the distance between the first end 21a close to the normal line L1 and the second end 21b is not limited, and the width of the black matrix frame 31, that is, the distance between the first end 31a and the second end 31b of the frame edge 310 of the black matrix frame 31 is also not limited, as long as it can cover the corresponding preset viewing angle range.

[0058] In some embodiments, the black matrix layer 3 is provided with the black matrix frame 31 only at the position corresponding to the first type of pixel unit 12. That is, in some embodiments, the black matrix layer 3 only includes the black matrix frame 31 projected on the display layer 1 and surrounding the first type of pixel unit 12, while the second type of pixel unit 13 is not provided with the black matrix frame 31, thereby ensuring that when the display viewing angle range of the first type of pixel unit 12 is limited, it is also beneficial to increase the display viewing angle range of the second type of pixel unit 13.

[0059] See also Figure 3 , is a plan view of the black matrix layer 3 of the touch display panel 100 in some embodiments of the present application.

[0060] in, Figure 3 , which is a schematic top view of the black matrix layer 3 viewed from the side away from the display layer 1. Figure 3 In the figure, the first type of pixel unit 12 and the second type of pixel unit 13 are also indicated in the form of dotted lines.

[0061] like Figure 3 As shown, in some embodiments, the black matrix frame 31 is provided only at the position corresponding to the first type of pixel unit 12 , that is, the projection of each black matrix frame 31 of the black matrix layer 3 on the display layer 1 only surrounds the corresponding first type of pixel unit 12 .

[0062] Among them, Figure 3 As shown, since there will be an arrangement structure in which the first type of pixel unit 12 is adjacent to the second type of pixel unit 13, although the projection of each black matrix frame 31 of the black matrix layer 3 on the display layer 1 only surrounds the corresponding first type of pixel unit 12, the projection of part of the frame edge 310 of the black matrix frame 31 on the display layer 1 will be located between the first type of pixel unit 12 and the second type of pixel unit 13, and will also be close to the second type of pixel unit 13 to a certain extent. Therefore, in the present application, the width of the frame edge 310 of the black matrix frame 31 can be smaller, and the black matrix frame 31 can be as close to the first type of pixel unit 12 as possible. Therefore, when the pixel unit 11 adjacent to the first type of pixel unit 12 is the second type of pixel unit 13, the second type of pixel unit 13 will be less blocked by the black matrix frame 31, which is conducive to improving the display viewing angle range of the second type of pixel unit 13. Due to the cooperation of the metal wiring 21 of the touch layer 2, even if the width of the frame edge 310 of the black matrix frame 31 becomes smaller, it can ensure that a wider viewing angle range is covered, thereby achieving an anti-peeping effect.

[0063] Therefore, if Figure 1-Figure 2As shown, the outgoing light L3 of the second-type pixel unit 13 will be less blocked, and the display viewing angle range of the second-type pixel unit 13 will be larger. Therefore, when there is no need for privacy protection, at least the second-type pixel unit 13 can be controlled to emit light, that is, the second-type pixel unit 13 can be controlled to emit light, or the second-type pixel unit 13 and the first-type pixel unit 12 can be controlled to emit light at the same time, so as to meet a better display effect.

[0064] In some embodiments, the width of the frame edge 310 of the black matrix frame 31, that is, the distance between the first end 31a and the second end 31b of the frame edge 310 of the black matrix frame 31 as described above, can be 3 to 5 um (micrometers), which can be reduced by about half compared to the conventional 7 to 10 um.

[0065] Obviously, as mentioned above, the width of the black matrix frame 31, that is, the distance between the first end 31a and the second end 31b of the frame edge 310 of the black matrix frame 31, can also be other values ​​as long as it can cover the corresponding preset viewing angle range.

[0066] In some embodiments, the first preset viewing angle interval is at least a portion of a viewing angle interval between 25° and 42°, and the second preset viewing angle interval is at least a portion of a viewing angle interval between 40° and 65°.

[0067] That is, in some embodiments, the black matrix frame 31 blocks part of the light emitting path L2 of the first type of pixel unit 12 and covers a first preset viewing angle range that may be part or all of the viewing angle range within the range of 25° to 42°, while the metal traces 21 of the touch layer 2 block part of the light emitting path L2 of the first type of pixel unit 12 and cover a second preset viewing angle range that may be part or all of the viewing angle range within the range of 40° to 65°, and it is sufficient to ensure that at least the boundaries of the two overlap.

[0068] For example, the first preset viewing angle interval may be 30° to 40°, and the second preset viewing angle interval may be 40° to 60°, or the first preset viewing angle interval may be 30° to 45°, and the second preset viewing angle interval may be 42° to 65°, or the first preset viewing angle interval may be 25° to 42°, and the second preset viewing angle interval may be 40° to 65°, and so on.

[0069] In some embodiments, the first preset viewing angle range may specifically be 30° to 42°, and the second preset viewing angle range may specifically be 40° to 60°.

[0070] In this application, "A" to "B" generally refers to a range greater than or equal to "A" and less than or equal to "B".

[0071] Therefore, in some embodiments, with the cooperation of the black matrix frame 31 and the metal wiring 21 of the touch layer 2, at least the light emitted by the first type of pixel unit 12 in at least a partial range of 25° to 65° with the normal line L1 can be blocked. Therefore, the first type of pixel unit 12 is invisible in at least a partial viewing angle range of 25° to 65°, and the display viewing angle range of the first type of pixel unit 12 is within a range greater than or equal to 0° to 25°.

[0072] Among them, in some embodiments, for the viewing angle range greater than 65°, the angle between the normal L1 is already large, and it is generally difficult to see the display content of the touch display panel 100 clearly from an angle greater than 65°. Therefore, in the present application, in fact, by covering a viewing angle range of 25° to 65° at most with the cooperation of the black matrix frame 31 and the metal wiring 21 of the touch layer 2, the display viewing angle range of the touch display panel 100, that is, the visible viewing angle range is only within a smaller viewing angle range, for example, within the range of 0° to 25°, and therefore, the anti-peeping effect can be effectively achieved.

[0073] In some embodiments, the display viewing angle within the aforementioned display viewing angle range includes viewing angles located on both sides of the normal line L1 along the row direction, or further includes viewing angles located on both sides of the normal line along the column direction.

[0074] That is, in some embodiments, the display viewing angle range of the first type of pixel unit 12 and the display viewing angle range of the second type of pixel unit 13 both include viewing angles along the row direction and on both sides of the normal direction, that is, along the row direction and on both sides of the normal L1 within a range of less than a certain angle with the normal L1.

[0075] Wherein, in some embodiments, Figure 1 and Figure 2 Specifically, it can be a schematic cross-sectional view taken along the row direction of the touch display panel 100 , and as mentioned above, Figure 1 and Figure 2 FIG. 1 schematically shows two adjacent pixel units 13, the first type pixel unit 12 and the second type pixel unit 13. Figure 1 and Figure 2 As shown, and as mentioned above, the display viewing angle range of the first type of pixel unit 12 includes Figure 1 and Figure 2 The viewing angles on the left and right of the normal line L1 shown in the figure form a roughly symmetrical viewing angle range centered on the normal line L1.

[0076] Among them, the row direction in the present application refers to the arrangement direction of each row of pixel units 11 in the multiple row-column distributed pixel units 11, and also refers to the extension direction of each row of metal wiring 21 in the multiple determinant-distributed metal wiring 21. The column direction in the present application refers to the arrangement direction of each column of pixel units 11 in the multiple row-column distributed pixel units 11, and also refers to the extension direction of each column of metal wiring 21 in the multiple determinant-distributed metal wiring 21.

[0077] In some embodiments, when the touch display panel 100 is applied to electronic devices such as mobile phones, the row direction of the touch display panel 100 can be the normal holding state of the electronic device such as a mobile phone, such as the left-right direction when a user holds it with one hand and normally views the electronic device, and the column direction can be the normal holding state of the electronic device such as a mobile phone, such as the up-down direction when a user holds it with one hand and normally views the electronic device, that is, the direction perpendicular to the left-right direction.

[0078] In some embodiments, the row direction may also be the left-right direction of the display content when the touch display panel 100 displays the corresponding display content and the display content is displayed upright. That is, the row direction may not depend on the holding state of the electronic device, but may be the left-right direction of the display content / display screen when it is upright in any holding state.

[0079] Therefore, in some embodiments, the display viewing angle within the aforementioned display viewing angle range includes viewing angles on both sides of the normal line L1 along the row direction, and the display viewing angle range of the first type of pixel unit 12 can be limited at least in the row direction, so that the left and right sides can be protected from peeping, and the user can normally watch the display content of the touch display panel 100 within the display viewing angle ranges on the left and right sides. In some embodiments, when the display viewing angle within the aforementioned display viewing angle range further includes viewing angles on both sides of the normal line along the column direction, the display viewing angle range of the first type of pixel unit 12 can be limited at least in the column direction, so that the upper and lower sides can be protected from peeping, and the user can normally watch the display content of the touch display panel 100 within the display viewing angle ranges on the upper, lower and right sides.

[0080] In some embodiments, the display viewing angle range of each pixel unit 11, that is, the display viewing angle range of the first type of pixel unit 12 and the display viewing angle range of the second type of pixel unit 13, may also be the viewing angles located on both sides of the normal direction along any direction of the touch display panel 100. For example, it may include the angle between the outgoing light of the pixel unit 11 in any direction that is not blocked and the normal line L1 direction of the light outlet K1.

[0081] Please also read Figure 4 and Figure 5 , Figure 4 1 is a schematic plan view of a display layer 1 of a touch display panel 100 in some embodiments of the present application. Figure 5 1 is a further schematic plan view of the black matrix layer 3 of the touch display panel 100 in some embodiments of the present application.

[0082] In some embodiments, Figure 4 As shown, each first-type pixel unit 12 includes three first-type sub-pixel units 121, such as Figure 5 As shown, each black matrix frame 31 includes at least one black matrix sub-frame 311 , each black matrix sub-frame 311 corresponds to one of the first-type sub-pixel units 121 in the corresponding first-type pixel unit 12 , and the projection on the display layer 1 surrounds the corresponding first-type sub-pixel unit 121 .

[0083] That is, in some embodiments, each pixel unit 11 may include three sub-pixel units, for example, the first-type pixel unit 12 includes three first-type sub-pixel units 121, and each black matrix frame 31 includes at least one black matrix sub-frame 311, each black matrix sub-frame 311 corresponds to one of the first-type sub-pixel units 121 in the corresponding first-type pixel unit 12, and the projection on the display layer 1 surrounds the corresponding first-type sub-pixel unit 121.

[0084] In some embodiments, Figure 5 As shown, each black matrix frame 31 includes three black matrix sub-frames 311, each black matrix sub-frame 311 corresponds to a first-type sub-pixel unit 121, and the projection on the display layer 1 surrounds the corresponding first-type sub-pixel unit 121, so that part of the light emitting path of each first-type sub-pixel unit 121 can be blocked.

[0085] Therefore, in some embodiments, each black matrix frame 31 also includes three black matrix sub-frames 311, each black matrix sub-frame 311 corresponds to a first-type sub-pixel unit 121, and the projection on the display layer 1 surrounds the corresponding first-type sub-pixel unit 121, so that the light output path of each first-type sub-pixel unit 121 can be blocked to a certain extent, and the display viewing angle range of each first-type sub-pixel unit 121 can be limited, thereby achieving the limitation of the display viewing angle range of the first-type pixel unit 12.

[0086] In some embodiments, each pixel unit 11 may include three sub-pixel units. For example, the first-type pixel unit 12 includes three first-type sub-pixel units 121, wherein the first-type sub-pixel unit 121 is the smallest pixel unit, and the three first-type sub-pixel units 121 correspond to the three primary colors of red, green, and blue. By controlling the light emission of different combinations of the three first-type sub-pixel units 121 and / or controlling the light emission brightness of the currently emitting first-type sub-pixel units 121, different colors can be mixed, so that the first-type pixel unit 12 can present the corresponding color, that is, emit light of the corresponding color.

[0087] In the present application, the pixel unit 12 may also be a light-emitting unit, and the three sub-pixel units, such as the first sub-pixel unit 121, may be three light-emitting elements for emitting light of different colors, such as three OLEDs (Organic Light-Emitting Diodes), etc. By controlling the light-emitting elements of different combinations in the pixel unit 12 to emit light and / or controlling the light-emitting brightness of the currently emitting light-emitting elements, different colors can be mixed, so that the pixel unit 11 can present the corresponding color, that is, emit light of the corresponding color.

[0088] The aforementioned light outlet K1 of the pixel unit 11 may specifically include a light outlet of a sub-pixel unit included in the pixel unit 11. Figure 1 and Figure 2 The first type of pixel unit 12 shown in the figure is actually a first type of sub-pixel unit 121 included in the first type of pixel unit 12 and corresponding to a black matrix frame 31 .

[0089] in, Figure 3-Figure 5 These are merely schematic diagrams and do not represent the actual number or arrangement of the pixel units 11 in the touch display panel 100 .

[0090] See also Figure 6 , is another further planar schematic diagram of the black matrix layer 3 of the touch display panel 100 in some embodiments of the present application.

[0091] In some embodiments, Figure 5 and Figure 6 As shown, the three first-type sub-pixel units 121 include a first-type R (Red) pixel unit 121a, a first-type G (Green) pixel unit 121b and a first-type B (Blue) pixel unit 121c, and at least the first-type G pixel unit 121b corresponds to a black matrix sub-frame 311.

[0092] That is, in some embodiments, at least one black matrix sub-frame 311 included in each black matrix frame 31 includes at least a black matrix sub-frame 311 corresponding to the first type G pixel unit 121b, and the projection on the display layer 1 surrounds the corresponding first type G pixel unit 121b.

[0093] Among them, for a touch display panel 100, generally speaking, the number of green sub-pixel units, that is, G pixel units, is the largest, and generally speaking, the size of the green sub-pixel units, that is, G pixel units, is also larger. Therefore, limiting the display viewing angle range of the first type of pixel unit 12 can also be at least limiting the first type of G pixel unit 121b. When the display viewing angle range of the first type of G pixel unit 121b is limited, when viewing from within the display viewing angle range, more positions cannot be viewed, resulting in missing or unclear display content, and the purpose of anti-peeping can also be achieved.

[0094] in, Figure 6 In the figure, it is illustrated by taking as an example that only the first-type G pixel unit 121b corresponds to a black matrix sub-frame 311, and each black matrix frame 31 only includes a black matrix sub-frame 311 corresponding to the first-type G pixel unit 121b.

[0095] In some embodiments, the first type G pixel unit 121b and the first type R pixel unit 121a may have a corresponding black matrix sub-frame 311, or the first type G pixel unit 121b and the first type B pixel unit 121c may have a corresponding black matrix sub-frame 311. Figure 5 As shown, the first type R pixel unit 121 a , the first type G pixel unit 121 b , and the first type B pixel unit 121 c all correspond to a black matrix sub-frame 311 .

[0096] Please also read Figure 7 , is a plan view of the touch layer 2 of the touch display panel 100 in some embodiments of the present application.

[0097] Among them, in some embodiments, as mentioned above Figure 4 As shown, each second-type pixel unit 13 also includes three second-type sub-pixel units 131. Figure 4 As shown, each first-type pixel unit 12 includes three first-type sub-pixel units 121, and each second-type pixel unit 13 also includes three second-type sub-pixel units 131. Figure 7As shown, the plurality of metal wirings 21 distributed in a determinant manner include a plurality of first metal wirings 211 extending in a row direction and spaced apart from each other, and a plurality of second metal wirings 212 extending in a column direction and spaced apart from each other, the plurality of first metal wirings 211 and the plurality of second metal wirings 212 cross-enclose to form a plurality of light-transmitting areas Q1, wherein each light-transmitting area Q1 corresponds to a sub-pixel unit for light emission of the corresponding sub-pixel unit, wherein the area of ​​the light-transmitting area Q1 corresponding to the first type of sub-pixel unit 121 is smaller than the area of ​​the light-transmitting area Q1 corresponding to the second type of sub-pixel unit 131.

[0098] Thus, in some embodiments, the area of ​​the light-transmitting region Q1 corresponding to the first-type sub-pixel unit 121 is smaller than the area of ​​the light-transmitting region Q1 corresponding to the second-type sub-pixel unit 131, so that the first-type sub-pixel unit 121 can be shielded from more light by the matrix-distributed metal wiring 21, thereby making the display viewing angle range of each first-type sub-pixel unit 121 in the first-type pixel unit 12 smaller than the display viewing angle range of each corresponding second-type sub-pixel unit 131 in the second-type pixel unit 13, thereby ensuring that the display viewing angle range of the first-type pixel unit 12 is smaller than the display viewing angle range of the second-type pixel unit 13.

[0099] In some embodiments, Figure 4 As shown, as mentioned above, the three first-type sub-pixel units 121 include a first-type R pixel unit 121a, a first-type G pixel unit 121b and a first-type B pixel unit 121c. Figure 4 As shown, the three second-type sub-pixel units 131 include a second-type R pixel unit 131a, a second-type G pixel unit 131b, and a second-type B pixel unit 131c. The area of ​​the light-transmitting region Q1 corresponding to the first-type R pixel unit 121a is smaller than the area of ​​the light-transmitting region Q1 of the second-type R pixel unit 131a, the area of ​​the light-transmitting region Q1 corresponding to the first-type G pixel unit 121b is smaller than the area of ​​the light-transmitting region Q1 of the second-type G pixel unit 131b, and the area of ​​the light-transmitting region Q1 corresponding to the first-type B pixel unit 121c is smaller than the area of ​​the light-transmitting region Q1 of the second-type B pixel unit 131c.

[0100] That is, in some embodiments, the area of ​​the light-transmitting region Q1 corresponding to the first type of sub-pixel unit 121 is smaller than the area of ​​the light-transmitting region Q1 corresponding to the second type of sub-pixel unit 131, and the area of ​​the light-transmitting region Q1 corresponding to the first type of sub-pixel unit 121 of a certain color is smaller than the area of ​​the light-transmitting region Q1 of the second type of sub-pixel unit 131 of the same color.

[0101] Among them, generally speaking, the sizes of red sub-pixel units, green sub-pixel units and blue sub-pixel units are different. For example, the size of a red sub-pixel unit is often smaller than the sizes of a green sub-pixel unit and a blue sub-pixel unit. Regardless of the size relationship of those sub-pixel units, as long as the area of ​​the light-transmitting region Q1 corresponding to a first-type sub-pixel unit 121 of a certain color is smaller than the area of ​​the light-transmitting region Q1 of a second-type sub-pixel unit 131 of the same color, the display viewing angle range of the first-type sub-pixel unit 121 of a certain color can be made smaller than the display viewing angle range of the second-type sub-pixel unit 131 of the corresponding color, thereby ensuring that the display viewing angle range of the first-type pixel unit 12 is smaller than the display viewing angle range of the second-type pixel unit 13.

[0102] In some embodiments, as described above, the plurality of first metal traces 211 and the plurality of second metal traces 212 cross and enclose to form a plurality of light-transmitting regions Q1, wherein each light-transmitting region Q1 corresponds to a sub-pixel unit, so that the corresponding sub-pixel unit can emit light. Figure 7 As shown, the plurality of light-transmitting regions Q1 are also arranged roughly in a matrix. Figure 7 As shown, in some embodiments, the size of the light-transmitting area Q1 corresponding to the first type of sub-pixel unit 121 along the column direction is equal to the size of the light-transmitting area Q1 corresponding to the second type of sub-pixel unit 131 along the column direction, and the size of the light-transmitting area Q1 corresponding to the first type of sub-pixel unit 121 along the row direction is smaller than the size of the light-transmitting area Q1 corresponding to the second type of sub-pixel unit 131 along the row direction.

[0103] That is, in some embodiments, the light-transmitting region Q1 corresponding to the first type of sub-pixel unit 121 may only be smaller in size along the row direction than the light-transmitting region Q1 corresponding to the second type of sub-pixel unit 131, so that the area of ​​the light-transmitting region Q1 corresponding to the first type of sub-pixel unit 121 is smaller than the area of ​​the light-transmitting region Q1 corresponding to the second type of sub-pixel unit 131.

[0104] Among them, as mentioned above, the row direction is mainly the left and right direction. Therefore, the multiple first metal wirings 211 and the multiple second metal wirings 212 can make the size of the light-transmitting area Q1 corresponding to the first type of sub-pixel unit 121 in the left and right directions smaller, so that more viewing angles of light of the first type of sub-pixel unit 121 in the left and right directions are blocked, and left and right peeping protection can be effectively achieved.

[0105] Obviously, in some embodiments, the size of the light-transmitting area Q1 corresponding to the first type of sub-pixel unit 121 along the column direction may also be smaller than the size of the light-transmitting area Q1 corresponding to the second type of sub-pixel unit 131 along the column direction. Thus, more viewing angles of light of the first type of sub-pixel unit 121 in the up and down directions can be blocked, and up and down peeping protection can be effectively achieved.

[0106] In some embodiments, when the size of the light-transmitting area Q1 corresponding to the first-type sub-pixel unit 121 along the column direction may also be smaller than the size of the light-transmitting area Q1 corresponding to the second-type sub-pixel unit 131 along the column direction, the first metal routing 211 extending along the row direction may be widened toward the inner side of the light-transmitting area Q1 it encloses at the position of each light-transmitting area Q1 corresponding to the first-type sub-pixel unit 121, thereby reducing the size of the light-transmitting area Q1 corresponding to the first-type sub-pixel unit 121 along the column direction.

[0107] For example, in some embodiments, the width of the first metal routing and the second metal routing 212 that enclose the light-transmitting area Q1 corresponding to the second-type sub-pixel unit 131 may be 3 to 4 um (micrometers), which is approximately the same as the width of the metal routing 211 of the conventional touch layer, and the width of the first metal routing and the second metal routing 212 that enclose the light-transmitting area Q1 corresponding to the first-type sub-pixel unit 121 may be increased to 6 to 9 um (micrometers), for example, it may be widened to 6 to 9 um (micrometers) toward the inner side of the light-transmitting area Q1 it encloses, so that the size of the light-transmitting area Q1 corresponding to the first-type sub-pixel unit 121 along the column direction becomes smaller.

[0108] Obviously, as mentioned above, the width of the metal routing 21, that is, the first metal routing and the second metal routing 212 can be any suitable width. For example, the width of the first metal routing and the second metal routing 212 that surround and form the light-transmitting area Q1 corresponding to the first type of sub-pixel unit 121 can be sufficient to block the second preset viewing angle range.

[0109] Therefore, in the present application, there is no need to add a new process. Only by adjusting the width of the metal trace 21 of the touch layer 2 and the width of the frame edge 310 of the black matrix frame 31 of the black matrix layer 3, a better anti-peeping effect can be achieved, and the process is simple.

[0110] In some embodiments, the plurality of first metal traces 211 extending in the row direction and spaced apart from each other and the plurality of second metal traces 212 extending in the column direction and spaced apart from each other are located in different layers in the touch layer 2, and the plurality of first metal traces 211 and the plurality of second metal traces 212 cross and enclose to form a plurality of light-transmitting areas Q1, which means that the projection of the plurality of first metal traces 211 on the layer where the plurality of second metal traces 212 are located intersects with the plurality of second metal traces 212. The touch layer 2 is a capacitive touch structure. Each intersection of the first metal trace 211 and the second metal trace 212 corresponds to a touch point, wherein, in response to a certain position of the touch display panel 100 being pressed, the distance between the first metal trace 211 and the second metal trace 212 at the corresponding position will change, so that a corresponding capacitance change is generated at the position, which can reflect that a touch has occurred at the current position, thereby realizing a touch function.

[0111] See also Figure 8 , is a schematic diagram of a stacking structure of more layers of the touch display panel 100 in some embodiments of the present application.

[0112] like Figure 8 As shown, the area outside the black matrix frame 31 in the black matrix layer 3 is provided with optical glue 32, and the black matrix layer 3 is fixedly connected to the touch layer 2 by bonding and fixing the optical glue 32. The optical glue 32 is a light-transmitting glue that allows light to pass through.

[0113] That is, in some embodiments, the black matrix layer 3 and the optical adhesive layer formed by the optical adhesive 32 are co-layered, so that the light shielding function of the black matrix and the bonding and fixing function of the optical adhesive can be realized at the same time.

[0114] The thickness of the black matrix frame 31 may be the same as the thickness of the black matrix layer 3, or may be less than the thickness of the black matrix layer 3. For example, the thickness of the black matrix frame 31 may be the same as the thickness of the black matrix layer 3, and an optical glue 32 of the same thickness is arranged in the area outside the black matrix frame 31 in the black matrix layer 3 to form a complete black matrix layer 3. For another example, the thickness of the black matrix frame 31 may be less than the thickness of the black matrix layer 3, and the optical glue 32 may be stacked with the black matrix frame 31 so that the thickness of the area where the black matrix frame 31 is located is the same as the thickness of the black matrix layer 3, and in addition, the optical glue 32 of the same thickness as the thickness of the black matrix layer 3 is filled in other areas to form a complete black matrix layer 3.

[0115] In some embodiments, Figure 8As shown, the touch display panel 100 further includes a packaging layer 4, which is disposed between the display layer 1 and the touch layer 2. The packaging layer 4 is used to package the display layer 1 and to bond and fix the display layer 1 and the touch layer 2 together.

[0116] In some embodiments, Figure 8 As shown, the touch display panel 100 further includes a driving layer 5 , which is disposed on a side of the display layer 1 away from the touch layer 2 and is used to drive the pixel units 11 of the display layer 1 to emit light.

[0117] That is, in some embodiments, the touch display panel 100 may further include a driving layer 5 to drive the pixel units 11 of the display layer 1 to emit light.

[0118] In some embodiments, the driving layer 5 may include a TFT thin film transistor array, and the driving layer 5 is connected between the driving circuit and the pixel units 11 distributed in rows and columns, and is used to apply the driving voltage provided by the driving circuit to the corresponding pixel units 11 to drive the pixel units 11 to emit light and display.

[0119] Among them, as mentioned above, the sub-pixel unit included in the pixel unit 11 can be an OLED, the cathode of the OLED is grounded, and the anode is connected to the driving layer 5, and the driving layer 5 is used to control the driving voltage provided by the driving circuit to be applied to the anode of at least part of the sub-pixel units in the corresponding pixel unit 11, so that at least part of the sub-pixel units in the corresponding pixel unit 11 are powered on and emit light, so that the at least part of the sub-pixel units that emit light generate light of corresponding colors and are mixed into the color finally presented by the corresponding pixel unit 11, so that the pixel unit 11 displays the corresponding color.

[0120] In some embodiments, the driving layer 5 includes structural layers such as a planar layer and a buffer layer in terms of a stacking structure, which will not be described in detail here.

[0121] In some embodiments, the driving layer 5 is used to drive at least the second-type pixel unit 13 of the display layer 1 to emit light, or only drive the first-type pixel unit 12 to emit light.

[0122] That is, in some embodiments, the driving layer 5 can drive the second type of pixel unit 13 of the display layer 1 to emit light, or the second type of pixel unit 13 and the first type of pixel unit 12 of the display layer 1 can both emit light, so that, since the display viewing angle range of the second type of pixel unit 13 is large, it can be applied to scenes where anti-peeping is not required, and the display effect can be improved. Alternatively, the driving layer 5 can only drive the first type of pixel unit 12 of the display layer 1 to emit light, and since the display viewing angle range of the first type of pixel unit 12 is small, in scenes where anti-peeping is required, only the first type of pixel unit 12 of the display layer 1 can be driven to emit light, which can effectively achieve anti-peeping.

[0123] Among them, Figure 8 As shown, the touch display panel 100 further includes a polarizer layer 6 , and the polarizer layer 6 is stacked on a side of the black matrix layer 3 away from the touch layer 2 .

[0124] like Figure 8 As shown, the touch display panel 100 further includes a first optical adhesive layer 7 , which is disposed between the polarizer layer 6 and the black matrix layer 3 , and is used to bond and fix the polarizer layer 6 and the black matrix layer 3 .

[0125] Among them, Figure 8 As shown, the touch display panel 100 further includes a protection layer 8 , which is stacked on a side of the polarizer layer 6 away from the black matrix layer 3 and can serve as the outermost layer of the touch display panel 100 .

[0126] The side of the protective layer 8 facing away from the polarizer layer 6 is the light emitting side of the touch display panel 100 , that is, the display side.

[0127] In some embodiments, Figure 8 As shown, the touch display panel 100 further includes a second optical adhesive layer 23 , which is disposed between the touch layer 2 and the black matrix layer 3 and is used to bond and fix the touch layer 2 and the black matrix layer 3 .

[0128] like Figure 8 As shown, the touch display panel 100 further includes a base layer 9 , which is disposed on a side of the driving layer 5 away from the display layer 1 , and is used as a base of the touch display panel 100 and carries other layers of the touch display panel 100 .

[0129] Please return to Figure 4In some embodiments, the plurality of pixel units 11 constitute a plurality of repeating units 10, that is, the plurality of first-type pixel units 12 and the plurality of second-type pixel units 13 constitute a plurality of repeating units 10. Figure 4 As shown, the multiple repeating units 10 are distributed in rows and columns, and each repeating unit 10 includes at least one first type pixel unit 12 and at least one second type pixel unit 13, and the at least one first type pixel unit 12 and at least one second pixel unit 13 in each repeating unit 10 are arranged along the row direction.

[0130] That is, in some embodiments, the display layer 1 may include a plurality of repeating units 10, each repeating unit 10 includes at least one first-type pixel unit 12 and at least one second-type pixel unit 13, and the at least one first-type pixel unit 12 and at least one second pixel unit 13 in each repeating unit 10 are arranged along a row direction. Thus, in this way, it is convenient to manufacture and form the display layer 1.

[0131] In some embodiments, as described above, each first-type pixel unit 12 includes three first-type sub-pixel units 121, and each second-type pixel unit 13 includes three second-type sub-pixel units 131. Figure 4 As shown, the three first-type sub-pixel units 121 are arranged along the column direction, and the three second-type sub-pixel units 131 are also arranged along the column direction.

[0132] That is, in some embodiments, three first-type sub-pixel units 121 in the same first-type pixel unit 12 are arranged along the column direction, and three second-type sub-pixel units 131 in the same second-type pixel unit 13 are also arranged along the column direction.

[0133] Thus, through the above arrangement, Figure 4 As shown, in the same column of the touch display panel 100, all are the first type of sub-pixel units 121, or all are the second type of sub-pixel units 131. In the same row of the touch display panel 100, the first type of sub-pixel units 121 and the second type of sub-pixel units 131 are arranged in a mixed manner. Therefore, when only the first type of pixel unit 12 emits light for display, better peek protection in the left and right directions can be achieved, and when at least the second type of sub-pixel unit 131 emits light for display, better display effect can be achieved.

[0134] In some embodiments, as described above, the three first-type sub-pixel units 121 include a first-type R pixel unit 121a, a first-type G pixel unit 121b, and a first-type B pixel unit 121c, and the three second-type sub-pixel units 131 include a second-type R pixel unit 131a, a second-type G pixel unit 131b, and a second-type B pixel unit 131c. Figure 4 As shown, the first type R pixel unit 121a, the first type G pixel unit 121b and the first type B pixel unit 121c in each first type pixel unit 12 are arranged sequentially along the column direction, and the second type B pixel unit 131b, the second type R pixel unit 131a, and the second type G pixel unit 131c in each second type pixel unit 13 are arranged sequentially along the column direction.

[0135] That is, in some embodiments, the three sub-pixel units in each first-type pixel unit 12 are arranged along the column direction, and specifically the first-type R pixel unit 121a, the first-type G pixel unit 121b, and the first-type B pixel unit 121c are arranged in sequence along the column direction, and the three sub-pixel units in each second-type pixel unit 13 are also arranged along the column direction, and specifically the second-type B pixel unit 131b, the second-type R pixel unit 131a, and the second-type G pixel unit 131c are arranged in sequence along the column direction.

[0136] in, Figure 4 In the example, each repeating unit 10 includes a first type pixel unit 12 and a second type pixel unit 13, and the first type pixel units and the second pixel units in each repeating unit 10 are alternately arranged along the row direction. Figure 4 The pixel arrangement shown adopts 2 / 3SPR sub-pixel rendering technology to achieve a display effect of three pixels with two pixel units 11 in the row direction through the SPR algorithm, which can effectively improve the overall pixel aperture ratio.

[0137] Obviously, in some embodiments, each repeating unit 10 may also include other numbers of first-type pixel units 12 and second-type pixel units 13. For example, each repeating unit 10 may also include two first-type pixel units 12 and one second-type pixel unit 13, and along the row direction, the second-type pixel unit 13 in each repeating unit 10 is located between two first-type pixel units 12. For another example, each repeating unit 10 may also include one first-type pixel unit 12 and two second-type pixel units 13, and along the row direction, the first-type pixel unit 12 in each repeating unit 10 is located between two second-type pixel units 13, and so on.

[0138] in, Figure 4The above example is only an example, and the first type of pixel unit 12 and the second type of pixel unit 13 and the sub-pixel units included therein may also have other arrangements, as long as it can be achieved that when only the first type of pixel unit 12 emits light for display, anti-peeping in certain directions can be achieved, and normal viewing within the display viewing angle range can be achieved. For example, in some embodiments, the at least one first type of pixel unit 12 and the at least one second pixel unit 13 in each repeating unit 10 are arranged along the column direction, and each first type of pixel unit 12 includes three first type of sub-pixel units 121, and each second type of pixel unit 13 includes three second type of sub-pixel units 131, and the three first type of sub-pixel units 121 are arranged along the row direction, and the three second type of sub-pixel units 131 are also arranged along the row direction.

[0139] In some embodiments, in addition to the repeating unit 10, the display layer 1 further includes a plurality of first-type G pixel units 121b and a plurality of second-type G pixel units 131b. Generally speaking, there are more green sub-pixel units such as the first-type G pixel units 121b and the second-type G pixel units 131b in the display layer 1, and the size of the green sub-pixel units is also larger. Thus, as mentioned above, at least the first-type G pixel unit 121b may be limited. When the display viewing angle range of the first-type G pixel unit 121b is limited, more positions cannot be viewed when viewed from within the display viewing angle range, resulting in missing or unclear display content, and the purpose of anti-peeping can also be achieved. That is, only the first-type G pixel unit 121b may correspond to a black matrix sub-frame 311, that is, each black matrix frame 31 may only include a black matrix sub-frame 311 corresponding to the first-type G pixel unit 121b.

[0140] See also Fig. 9 , is another plan view schematically showing the display layer 1 of the touch display panel 100 in some embodiments of the present application.

[0141] In some embodiments, the plurality of pixel units 11 on the display layer 1 may not constitute a repeated unit, and the plurality of first-type pixel units 12 and second-type pixel units 13 may be arbitrarily arranged in rows and columns, as long as the first-type pixel units 12 and second-type pixel units 13 that meet the display requirements are distributed in each region of the display layer 1. That is, as long as it is satisfied that when only the first-type pixel unit 12 emits light for display, a complete and clear display content can be viewed within the display viewing angle range of the first-type pixel unit 12, and when at least the second-type pixel unit 13 emits light for display, a complete and clear display content can be viewed within the corresponding display viewing angle range.

[0142] For example, Fig. 9As shown, in each row of the display layer 1 , a plurality of first-type pixel units 12 and a plurality of second-type pixel units 13 are interspersed, and the arrangement of the plurality of first-type pixel units 12 and the plurality of second-type pixel units 13 in different rows may be different.

[0143] In some embodiments, Figure 4 The shapes of the sub-pixel units included in the pixel unit 11 in the figure, that is, the first type of sub-pixel unit 121 and the second type of sub-pixel unit 131, are the shapes of the light outlets K1 of the sub-pixel units included in the pixel unit 11.

[0144] The light outlet K1 of the sub-pixel unit included in the pixel unit 11 in the present application is an opening formed on the (Pixel Definition Layer, PDL pixel definition layer), that is, it can also be called the opening of the sub-pixel unit.

[0145] Among them, Figure 4 As shown, the openings of the first sub-pixel units 121 and the second sub-pixel units 131 are square. Obviously, the openings of the first sub-pixel units 121 and the second sub-pixel units 131 can also be other shapes such as circular, elliptical, polygonal or diamond.

[0146] Among them, the shape of the black matrix sub-frame 311 corresponding to the first-type sub-pixel unit 121 can be the same as the shape of the first-type sub-pixel unit 121, that is, when the openings of those first-type sub-pixel units 121 are square, the shape of the black matrix sub-frame 311 corresponding to the first-type sub-pixel unit 121 is also square, and when the openings of those first-type sub-pixel units 121 are circular, elliptical, polygonal or diamond-shaped, the shape of the black matrix sub-frame 311 corresponding to the first-type sub-pixel unit 121 is also circular, elliptical, polygonal or diamond-shaped.

[0147] The shape of the black matrix sub-frame 311 corresponding to the first-type sub-pixel unit 121 is the shape of the projection of the black matrix sub-frame 311 of the first-type sub-pixel unit 121 on the display layer 1 .

[0148] In some embodiments, when the opening of the first type of sub-pixel unit 121 and the shape of the black matrix sub-frame 311 corresponding to the first type of sub-pixel unit 121 are circular or the like, the aforementioned Figure 1-Figure 2 The screenshots in the figure may be screenshots in any direction, and the size of the light-transmitting area Q1 corresponding to the first type of sub-pixel unit 121 along any direction is smaller than the size of the light-transmitting area Q1 corresponding to the second type of sub-pixel unit 131 along the corresponding direction.

[0149] In some embodiments, an encapsulation layer formed by COE (color filter onencapsulation) technology may also be provided above the black matrix layer 3. Since the encapsulation layer formed by COE technology can achieve the effect of the polarizer layer 6, the polarizer layer 6 can be omitted at this time. In addition, since the COE encapsulation layer itself has a black matrix structure, it can accelerate the attenuation of a large viewing angle, which is beneficial to improving the anti-peeping effect. Among them, the black matrix structure in the COE encapsulation layer is located at a position corresponding to the first type of pixel unit 12, that is, the projection of the black matrix structure in the COE encapsulation layer on the display layer 1 can also surround the corresponding first type of pixel unit 12, and specifically can surround the first type of sub-pixel unit 121 in the corresponding first type of pixel unit 12.

[0150] In some embodiments, an MLA (microlens array) structure layer having material properties with different high and low refractive indices may also be provided above the black matrix layer 3, and the MLA structure layer may include multiple MLA structures, which can further enhance the anti-peeping effect and reduce power consumption by 12%. The multiple MLA structures included in the MLA structure layer are located at positions corresponding to the first type of pixel unit 12, that is, the projections of the multiple MLA structures included in the MLA structure layer on the display layer 1 may also surround the corresponding first type of pixel unit 12, and specifically surround the first type of sub-pixel unit 121 in the corresponding first type of pixel unit 12.

[0151] In some embodiments, an MLA (microlens array) structure and an encapsulation layer formed by COE technology may be stacked on top of the black matrix layer 3 at the same time. For example, the encapsulation layer formed by the COE technology and the MLA (microlens array) structure may be stacked in sequence on top of the black matrix layer 3, thereby better improving the anti-peeping effect.

[0152] See also Fig.10 , which is a partial top view illustrating a partial structure of the touch display panel 100 in some embodiments of the present application.

[0153] in, Fig.10 The schematic diagram shows that the projections of a plurality of MLA structures S1 on the display layer 1 surround the first-type sub-pixel units 121 in the corresponding first-type pixel units 12 .

[0154] Among them, Fig.10As shown, the shape of the first type of sub-pixel unit 121 is illustrated as a circle, the shape of the MLA structure S1 is illustrated as a square, and the hollow area formed by the MLA structure S1 is also a circle, which is consistent with the shape of the first type of sub-pixel unit 121 and surrounds the first type of sub-pixel unit 121.

[0155] As mentioned above, the MLA structure layer may include a plurality of MLA structures S1, which can further enhance the anti-peeping effect and reduce power consumption by 12%.

[0156] Thus, the touch display panel 100 of the present application includes a plurality of black matrix frames 31 through the black matrix layer 3, each black matrix frame 31 corresponds to a first type of pixel unit 12, and the projection on the display layer 1 surrounds the corresponding first type of pixel unit 12, and the black matrix frame 31 cooperates with the metal wiring 21 of the touch layer 2 to block part of the light exit path of the first type of pixel unit 12, thereby limiting the display viewing angle range of the first type of pixel unit 12, so that the display viewing angle range of the first type of pixel unit 12 can be made smaller than the display viewing angle range of the second type of pixel unit 13. Thus, the touch display panel 100 can only emit light through the first type of pixel unit 12 when necessary, and because the display viewing angle range of the first type of pixel unit 12 is small, a better anti-peeping effect can be achieved. In addition, in the present application, the black matrix frame 31 cooperates with the metal wiring 21 of the touch layer 2 to block part of the light exit path of the first type of pixel unit 12, so that a larger range of blocking can be achieved, and the anti-peeping effect can be effectively improved. In addition, in the present application, there is no need to add new process steps. A better anti-peeping effect can be achieved by simply adjusting the width of the metal trace 21 of the touch layer 2 and the width of the frame edge 310 of the black matrix frame 31 of the black matrix layer 3. The process step is simple.

[0157] In some embodiments, the light outlet K1 of the first type of pixel unit 12 is smaller than the light outlet K1 of the second type of pixel unit 13 .

[0158] Among them, although the pixel unit 11, that is, the first type of pixel unit 12 and the second type of pixel unit 13 are relatively small in size and can be regarded as a point light source, the size of the light outlet K1 of the first type of pixel unit 12 and the second type of pixel unit 13 will still affect the angle of divergence of the emitted light to a certain extent. Therefore, in some embodiments, the light outlet K1 of the first type of pixel unit 12 is smaller than the light outlet K1 of the second type of pixel unit 13, so that the display viewing angle range of the first type of pixel unit 12 can be better ensured to be a smaller display viewing angle range, thereby further improving the anti-peeping effect.

[0159] In some embodiments, as described above, the first type pixel unit 12 includes three first type sub-pixel units 121, and specifically includes a first type R pixel unit 121a, a first type G pixel unit 121b and a first type B pixel unit 121c. Figure 4 As shown, the second type pixel unit 13 includes three second type sub-pixel units 131, and the three second type sub-pixel units 131 include a second type R pixel unit 131a, a second type G pixel unit 131b, and a second type B pixel unit 131c. Specifically, the size of the light outlet K1 of the first type R pixel unit 121a is smaller than the size of the light outlet K1 of the second type R pixel unit 131a, the size of the light outlet K1 corresponding to the first type G pixel unit 121b is smaller than the size of the light outlet K1 of the second type G pixel unit 131b, and the size of the light outlet K1 of the first type B pixel unit 121c is smaller than the size of the light outlet K1 of the second type B pixel unit 131c.

[0160] That is, in some embodiments, the size of the light exit K1 corresponding to the first type of sub-pixel unit 121 is smaller than the size of the light exit K1 corresponding to the second type of sub-pixel unit 131, that is, the area of ​​the size of the light exit K1 of the first type of sub-pixel unit 121 of a certain color is smaller than the size of the light exit K1 of the second type of sub-pixel unit 131 of the same color.

[0161] In some embodiments, the size of the light outlet K1 of the pixel unit 11 may refer to the size of the light outlet K1 of the pixel unit 11 along certain directions, that is, specifically refers to the size of the light outlet K1 of the sub-pixel unit included in the pixel unit 11 along certain directions, such as the size in the row direction. In some embodiments, the size of the light outlet K1 of the pixel unit 11 may also refer to the area of ​​the light outlet K1 of the pixel unit 11, that is, specifically refers to the area of ​​the light outlet K1 of the sub-pixel unit included in the pixel unit 11.

[0162] See also Fig.11 , is a schematic diagram of the stacking of the display screen 110 in some embodiments of the present application.

[0163] The display screen 110 includes the touch display panel 100 in any of the aforementioned embodiments, and further includes a glass cover plate 111 .

[0164] The glass cover plate 111 is stacked on the light emitting surface of the touch display panel 100 , that is, one side of the display surface, and serves as a protection plate for the touch display screen 110 .

[0165] See also Fig.12 , which is a plan view of an electronic device 200 in some embodiments of the present application.

[0166] The electronic device 200 includes the aforementioned display screen 110, that is, also includes the touch display panel 100 in any of the aforementioned embodiments. That is, the display screen 110 can be a touch display screen of the electronic device 200, thereby realizing the functions of touch input and display output.

[0167] Among them, Fig.12 As shown, the electronic device 200 includes a top end D1, a bottom end D2 and two side ends D3.

[0168] In some embodiments, when the electronic device 200 is in normal use, the top D1 is generally located at the top, or at the end away from the user.

[0169] In some embodiments, the aforementioned row direction may refer to the direction from one side end D3 of the electronic device 200 to the other side end D3 when the touch display panel 100 is installed in the electronic device 200, and the aforementioned column direction may refer to the direction from the top end D1 to the bottom end D2 or the bottom end D2 to the top end D1 of the electronic device 200 when the touch display panel 100 is installed in the electronic device 200.

[0170] In some embodiments, the row direction may also be the left-right direction of the display content when the touch display panel 100 displays the corresponding display content and the display content is displayed upright. That is, the row direction may not depend on the holding state of the electronic device, but may be the left-right direction when the display content / display screen is upright in any holding state. For example, when the electronic device 200 is currently held, the top D1 is located at the top and the bottom D2 is located at the bottom. At this time, the direction from one side end D3 of the electronic device 200 to the other side end D3 may be the aforementioned row direction, and when the electronic device 200 is currently held, one of the two side ends D3 is located at the top and the other is located at the bottom. At this time, the direction from the top D1 of the electronic device 200 to the bottom D2 may be the aforementioned row direction.

[0171] Among them, the directional terms such as "top" and "bottom" used in the embodiments of the present application to describe the electronic device 200 are mainly explained based on the orientation when the user holds the electronic device 200 and uses it. The position toward the top side of the electronic device 200 is the "top", and the position toward the bottom side of the electronic device 200 is the "bottom". It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the orientation of the electronic device 200 in actual application scenarios. In some embodiments, the bottom end D2 of the electronic device 200 is the end where the headphone jack and the USB port are provided, and the top end D1 of the electronic device 200 is the other end opposite to the end where the headphone jack and the USB port are provided, and may also refer to the end where a camera, a receiver, etc. are provided.

[0172] In some embodiments, the display mode of the electronic device 200 includes a normal display mode and an anti-peeping display mode. In the normal display mode, at least the second-type pixel unit 13 of the touch display panel 100 emits light. In the anti-peeping display mode, only the first-type pixel unit 12 in the touch display panel 100 emits light.

[0173] As mentioned above, when only the first type of pixel unit 12 is used for light display, a better anti-peeping effect can be achieved due to the small display viewing angle range of the first type of pixel unit 12. In addition, in the present application, the black matrix frame 31 cooperates with the metal wiring 21 of the touch layer 2 to block part of the light output path of the first type of pixel unit 12, which can achieve a larger range of blocking and effectively improve the anti-peeping effect. In addition, in the present application, there is no need to add a new process. Only by adjusting the width of the metal wiring 21 of the touch layer 2 and the width of the frame edge 310 of the black matrix frame 31 of the black matrix layer 3, a better anti-peeping effect can be achieved, and the process is simple.

[0174] When at least the second-type pixel unit 13 of the touch display panel 100 emits light for display, that is, only the second-type pixel unit 13 emits light for display, or both the second-type pixel unit 13 and the first-type pixel unit 12 emit light for display, since the second-type pixel unit 13 has less viewing angle occlusion, normal display can be performed in a larger display viewing angle range.

[0175] The structure of the touch display panel 100 included in the electronic device 200 can be found in the above-mentioned related introduction of the touch display panel 100 for more details, which will not be repeated here.

[0176] See also Fig.13 , which is a schematic diagram comparing the brightness attenuation curves of the electronic device 200 in some embodiments of the present application and a reference electronic device.

[0177] The reference electronic device may be a common electronic device without an anti-peeping display mode, wherein: Fig.13 The figure illustrates the brightness attenuation curve S11 of the reference electronic device at various viewing angles, the brightness attenuation curve S12 of the electronic device 200 of the present application at various viewing angles when working in the normal display mode, and the brightness attenuation curve S13 of the electronic device 200 of the present application at various viewing angles when working in the anti-peep display mode.

[0178] in, Fig.13 The horizontal axis in can be the viewing angle, and the vertical axis can be the display brightness of the electronic device. As mentioned above, the viewing angle can also be the angle between the line of sight and the normal line L1 of the pixel unit 11, which is also equivalent to the display angle corresponding to the electronic device.

[0179] Among them, Fig.13 As shown in FIG. 1 , the reference electronic device still has a display brightness of 40% to 70% within a viewing angle range of 30° to 50°, so that the display content of the reference electronic device can be clearly viewed from the side, and the anti-peeping effect is poor. Fig.13 As shown, when the electronic device 200 of the present application works in the anti-peeping display mode, the display brightness at a viewing angle greater than 30° is close to zero, and is almost completely invisible, indicating that the display viewing angle range of the electronic device does not include the viewing angle / display viewing angle, that is, the light emitted by the touch display panel 100 at the viewing angle / display viewing angle is basically invisible. At this time, the display content of the electronic device 200 cannot be viewed from the side with a viewing angle greater than 30°, and the anti-peeping effect is very good. In addition, the display brightness within the range of less than 10° viewing angle also exceeds 80%, which meets normal viewing. When the electronic device 200 of the present application works in the normal display mode, the display brightness at a viewing angle less than 30° exceeds 50%, and the display brightness at a viewing angle less than 10° is close to 90%, which can meet the display brightness when viewing the display content of the electronic device 200 normally, and does not affect the normal display of the electronic device 200.

[0180] It can be seen that the electronic device 200 of the present application, when equipped with the touch display panel 100, can achieve a good anti-peeping effect without affecting the normal use of the electronic device 200.

[0181] See also Fig.14 , which is a structural block diagram of an electronic device 200 in some embodiments of the present application.

[0182] like Fig.14 As shown, the electronic device 200 includes the touch display panel 100 and a processor 101 .

[0183] The processor 101 may be used to control the display mode of the electronic device 200 to switch to the normal display mode or the anti-peeping display mode.

[0184] For example, the processor 101 may control the electronic device 200 to enter the anti-peeping display mode in response to the anti-peeping on operation, for example, the processor 101 may control the driving layer 5 of the touch display panel 100 to only conduct the electrical connection between the driving circuit and the first type of pixel unit 12, and only drive the first type of pixel unit 12 to emit light and display. The processor 101 may also control the electronic device 200 to enter the normal display mode in response to the anti-peeping off operation, for example, the processor 101 may control the driving layer 5 of the touch display panel 100 to conduct the electrical connection between the driving circuit and the second type of pixel unit 13, or conduct the connection between the driving circuit and all the pixel units 11, and drive the second type of pixel unit 13 to emit light and display, or drive all the pixel units 11, that is, all the first type of pixel units 12 and the second type of pixel units 13 to emit light and display.

[0185] In some embodiments, Fig.14 As shown, the electronic device 200 further includes an input unit 102 . The anti-peeping on operation and the anti-peeping off operation may be operations inputted through the input unit 102 .

[0186] In some embodiments, the anti-peeping on operation or the anti-peeping off operation may be an operation of entering a function menu option through the input unit 102 and selecting a “turn on detection” or “turn off detection” function option.

[0187] In some embodiments, the input unit 102 is the touch display panel 100, and the detection-on operation and the detection-off operation may be touch gesture operations with specific touch tracks input on the touch display panel 100. For example, the detection-on operation may be a touch gesture operation with a “√”-shaped track input on the touch screen, and the detection-off operation may be a touch gesture operation with a “×”-shaped track input on the touch screen, and so on.

[0188] In some embodiments, the input unit 102 may also include physical buttons, such as a power button and / or a volume button located on the side frame of the electronic device 200. The detection-on operation and the detection-off operation may be specific pressing operations performed on the physical buttons. For example, the detection-on operation and the detection-off operation may both be operations of pressing the volume button and the power button at the same time. When the detection function is currently in the on state, the operation of pressing the volume button and the power button at the same time is the detection-off operation, and when the detection function is currently in the off state, the operation of pressing the volume button and the power button at the same time is the detection-on operation, and when the detection function is currently in the off state, the operation of pressing the volume button and the power button at the same time is the detection-on operation, and so on.

[0189] The electronic device 200 also includes a memory, a battery, etc., which are irrelevant to the improvement of the present application and will not be described in detail.

[0190] The electronic device 200 of the present application may be a mobile phone, a tablet computer, a laptop computer or other electronic device.

[0191] Through the touch display panel 100, the touch display screen 110 and the electronic device 200 in the present application, the black matrix layer 3 cooperates with the metal wiring 21 of the touch layer 2 to block part of the light emitting path of the first type of pixel unit 12, thereby limiting the display viewing angle range of the first type of pixel unit 12, so that the display viewing angle range of the first type of pixel unit 12 can be made smaller than the display viewing angle range of the second type of pixel unit 13. Therefore, the touch display panel 100 can only emit light through the first type of pixel unit 12 when necessary, and since the display viewing angle range of the first type of pixel unit 12 is small, a better anti-peeping effect can be achieved. In addition, in the present application, by blocking part of the light emitting path of the first type of pixel unit 12 through the black matrix layer 3 and the metal wiring 21 of the touch layer 2, a larger range of blocking can be achieved, which can effectively improve the anti-peeping effect. In addition, in the present application, there is no need to add new process steps. A better anti-peeping effect can be achieved by simply adjusting the width of the metal trace 21 of the touch layer 2 and the width of the frame edge 310 of the black matrix frame 31 of the black matrix layer 3. The process step is simple.

[0192] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0193] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A touch display panel, characterized in that: include: A display layer, the display layer comprising a plurality of pixel units distributed in rows and columns, the plurality of pixel units comprising a plurality of first-type pixel units and a plurality of second-type pixel units; A touch layer, stacked on the display layer, the touch layer comprising a plurality of metal traces distributed in a matrix; A black matrix layer, stacked on the touch layer; The black matrix layer and the metal wiring block part of the light emitting path of the first type of pixel unit to limit the display viewing angle range of the first type of pixel unit, wherein the display viewing angle range of the first type of pixel unit is smaller than the display viewing angle range of the second type of pixel unit.

2. The touch display panel according to claim 1, characterized in that: The light outlets of the plurality of pixel units face toward one side of the touch layer, and the display viewing angle within the display viewing angle range is an angle with the normal direction of the light outlet.

3. The touch display panel according to claim 2, characterized in that: The black matrix layer blocks part of the light emitting path of the first type of pixel units and covers the first preset viewing angle range of the first type of pixel units, the metal wiring of the touch layer blocks part of the light emitting path of the first type of pixel units and covers the second preset viewing angle range of the first type of pixel units, the first preset viewing angle range and the second preset viewing angle range at least overlap in boundaries, and the viewing angles in the first preset viewing angle range and the second preset viewing angle range are both angles with the normal direction of the light outlet.

4. The touch display panel according to claim 3, characterized in that: At least part of the viewing angles in the first preset viewing angle range is smaller than the viewing angles in the second preset viewing angle range.

5. The touch display panel according to claim 2, characterized in that: The first preset viewing angle interval is at least a portion of a viewing angle interval between 25° and 42°, and the second preset viewing angle interval is at least a portion of a viewing angle interval between 40° and 65°.

6. The touch display panel according to claim 2, characterized in that: The display viewing angles within the display viewing angle range include viewing angles located on both sides of the normal direction along the row direction, or further include viewing angles located on both sides of the normal direction along the column direction.

7. The touch display panel according to claim 3, characterized in that: The viewing angles in the first preset viewing angle interval and the second preset viewing angle interval include viewing angles located on both sides of the normal direction along the row direction, or further include viewing angles located on both sides of the normal direction along the column direction.

8. The touch display panel according to claim 1, characterized in that: A plurality of through holes are distributed on the black matrix layer, each through hole is arranged corresponding to each first-type pixel unit, and part of the light of the first-type pixel unit is transmitted through the corresponding through hole.

9. The touch display panel according to claim 1, characterized in that: The black matrix layer includes a plurality of black matrix frames, each of which corresponds to a first type pixel unit, and a projection of the black matrix frame on the display layer surrounds the corresponding first type pixel unit.

10. The touch display panel according to claim 9, characterized in that: Each first-type pixel unit includes three first-type sub-pixel units, each black matrix frame includes at least one black matrix sub-frame, each black matrix sub-frame corresponds to one of the first-type sub-pixel units in the corresponding first-type pixel unit, and the projection on the display layer surrounds the corresponding first-type sub-pixel unit.

11. The touch display panel according to claim 10, characterized in that: The three first-type sub-pixel units include a first-type R pixel unit, a first-type G pixel unit and a first-type B pixel unit, and at least the first-type G pixel unit corresponds to a black matrix sub-frame.

12. The touch display panel according to claim 10, characterized in that: Each first type pixel unit includes three first type sub-pixel units, each black matrix frame includes three black matrix sub-frames, each black matrix sub-frame corresponds to a first type sub-pixel unit, and the projection on the display layer surrounds the corresponding first type sub-pixel unit.

13. The touch display panel according to claim 1, characterized in that: Each first-type pixel unit includes three first-type sub-pixel units, and each second-type pixel unit includes three second-type sub-pixel units. The multiple metal wirings distributed in a determinant include multiple first metal wirings extending in a row direction and spaced apart from each other, and multiple second metal wirings extending in a column direction and spaced apart from each other. The multiple first metal wirings and the multiple second metal wirings cross-enclose to form multiple light-transmitting areas, wherein each light-transmitting area corresponds to a sub-pixel unit to allow the corresponding sub-pixel unit to emit light, wherein the area of ​​the light-transmitting area corresponding to the first-type sub-pixel unit is smaller than the area of ​​the light-transmitting area corresponding to the second-type sub-pixel unit.

14. The touch display panel according to claim 12, characterized in that: The three first-category sub-pixel units include a first-category R pixel unit, a first-category G pixel unit, and a first-category B pixel unit, and the three second-category sub-pixel units include a second-category R pixel unit, a second-category G pixel unit, and a second-category B pixel unit; the area of ​​the light-transmitting region corresponding to the first-category R pixel unit is smaller than the area of ​​the light-transmitting region of the second-category R pixel unit, the area of ​​the light-transmitting region corresponding to the first-category G pixel unit is smaller than the area of ​​the light-transmitting region of the second-category G pixel unit, and the area of ​​the light-transmitting region corresponding to the first-category B pixel unit is smaller than the area of ​​the light-transmitting region of the second-category B pixel unit.

15. The touch display panel according to claim 9, characterized in that: An area outside the black matrix frame in the black matrix layer is provided with optical glue, and the black matrix layer is fixedly connected to the touch layer through the optical glue.

16. The touch display panel according to claim 1, characterized in that: The touch display panel further includes a first optical adhesive layer, which is disposed between the display layer and the touch layer and is used to bond and fix the display layer and the touch layer together.

17. The touch display panel according to claim 1, characterized in that: The touch display panel further includes a driving layer, which is disposed on a side of the display layer away from the touch layer and is used to drive the pixel units of the display layer to emit light.

18. The touch display panel according to claim 17, characterized in that: The driving layer is used to drive at least the second type of pixel units in the display layer to emit light, or only drive the first type of pixel units to emit light.

19. The touch display panel according to claim 1, characterized in that: The multiple pixel units constitute multiple repeating units, the multiple repeating units are distributed in rows and columns, and each repeating unit includes at least one first type pixel unit and at least one second type pixel unit, and the at least one first type pixel unit and at least one second pixel unit in each repeating unit are arranged along the row direction.

20. The touch display panel according to claim 18, characterized in that: Each first-type pixel unit includes three first-type sub-pixel units, and each second-type pixel unit includes three second-type sub-pixel units. The three first-type sub-pixel units are arranged along a column direction, and the three second-type sub-pixel units are also arranged along a column direction.

21. A display screen, characterized in that: The display screen includes a glass cover and a touch display panel as described in any one of claims 1-20.

22. An electronic device, characterized in that: The electronic device comprises the display screen as claimed in claim 21.

23. The electronic device according to claim 22, characterized in that: The display mode of the electronic device includes a normal display mode and an anti-peeping display mode. In the normal display mode, at least the second type of pixel units in the touch display panel emit light. In the anti-peeping display mode, only the first type of pixel units in the touch display panel emit light.

Images