Display panel, display screen and electronic equipment

Abstract

The invention provides a display panel. The display panel comprises a display panel body and an optical film. The display panel body comprises a light emitting surface and a backlight surface which are opposite to each other, the optical film is arranged on one side of the backlight surface of the display panel body, and the optical film is at least used for filtering at least part of light leaked from one side of the backlight surface of the display panel body. The invention further provides a display screen and electronic equipment. According to the display panel, light leaked from one side of the backlight surface of the display panel body can be weakened, and the influence on components, such as a brightness sensor and other light sensors, located on one side of the backlight surface of the display panel body is avoided or weakened.

Description

Technical Field

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

[0002] At present, electronic devices such as mobile phones have been widely used. At present, in order to increase the area of ​​the display screen without increasing the size of the electronic device, the screen-to-body ratio of current electronic devices such as mobile phones is getting higher and higher. At present, full-screen mobile phones and other full-screen electronic devices have gradually become mainstream. In full-screen electronic devices such as full-screen mobile phones, due to the functional requirements of the electronic devices, it is often necessary to set sensors on one side of the display screen of the electronic device, such as brightness sensors, to realize functions such as brightness detection of ambient light. In order to achieve the full-screen effect, one current method is to achieve it through an under-screen sensor, that is, to set the sensor on the backlight side of the display panel body, and detect the current ambient light brightness by detecting the ambient light that the display panel body can pass. However, when the display panel body itself is emitting light, the light emitted by itself will leak to the side, and these leaked lights will also be received by these sensors, which will affect the accuracy of the data detected by the sensors. Summary of the invention

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

[0004] In a first aspect, a display panel is provided, the display panel comprising a display panel body and an optical film. The display panel body comprises a light emitting surface and a backlight surface opposite to each other, the optical film is arranged on the backlight surface side of the display panel body, and the optical film is at least used to filter out at least part of the light leaking from the backlight surface side of the display panel body.

[0005] In a second aspect, a display screen is provided, the display screen comprising a glass cover plate and a display panel. The display panel comprises a display panel body and an optical film. The display panel body comprises a light emitting surface and a backlight surface opposite to each other, the optical film is arranged on the backlight surface side of the display panel body, and the optical film is at least used to filter out at least part of the light leaking from the backlight surface side of the display panel body.

[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 display panel. The display panel comprises a display panel body and an optical film. The display panel body comprises a light emitting surface and a backlight surface opposite to each other, the optical film is arranged on the backlight surface side of the display panel body, and the optical film is at least used to filter out at least part of the light leaking from the backlight surface side of the display panel body.

[0007] The display panel, display screen and electronic device of the present application are provided with the optical film on the backlight side of the display panel body. The optical film is used to filter out at least part of the light leaking from the backlight side of the display panel body, thereby weakening the light leaking from the backlight side of the display panel body and avoiding or weakening the influence on the components located on the backlight side of the display panel body, such as light sensors such as brightness sensors. 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 1 FIG. 1 is a schematic diagram of a stacked structure of a display panel in an embodiment of the present application.

[0010] Figure 2 Schematic diagram of the structure of the optical film in some embodiments of the present application.

[0011] Figure 3 It is a further structural schematic diagram of the optical film in some embodiments of the present application.

[0012] Figure 4 It is a schematic diagram of a further stacking structure of a display panel in some embodiments of the present application.

[0013] Figure 5 Schematic diagram of the light path of the display panel in some embodiments of the present application.

[0014] Figure 6 It is a schematic diagram of a further stacking structure of a display panel in some embodiments of the present application.

[0015] Figure 7 It is a schematic diagram of another further stacked structure of a display panel in some embodiments of the present application.

[0016] Figure 8 This is a further schematic diagram of a stacked structure of a display panel in some embodiments of the present application.

[0017] Fig. 9 It is a further schematic diagram of a stacked structure of a display panel in some embodiments of the present application.

[0018] Fig.10 A partial stacking diagram illustrating a multi-layer structure of a display panel in some embodiments of the present application.

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

[0020] Fig.12 This is a structural block diagram of an electronic device in some embodiments of the present application.

[0021] Fig.13 The figure is a side view schematically showing a partial structure of the electronic device.

[0022] Fig.14 It is a schematic plan view 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 orientation or positional relationship indicated by the terms "upper", "lower", "thickness", "width", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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] See also Figure 1 , is a schematic diagram of the stacked structure of the display panel 100 in one embodiment of the present application. Figure 1 As shown, the display panel 100 includes a display panel body 1 and an optical film 2. The display panel body 1 includes a light emitting surface S1 and a backlight surface S2 opposite to each other, and the optical film 2 is arranged on the backlight surface S2 side of the display panel body 1, and the optical film 2 is at least used to filter out at least part of the light leaking from the backlight surface S2 side of the display panel body 1.

[0026] Therefore, in the present application, the optical film 2 is arranged on the backlight surface S2 side of the display panel body 1, and the optical film 2 is used to filter out at least part of the light leaked from the backlight surface S2 side of the display panel body 1, thereby weakening the light leaked from the backlight surface S2 side of the display panel body 1, and avoiding or weakening the influence on the components located on the backlight surface S2 side of the display panel body 1, such as brightness sensors and other light sensors.

[0027] The light emitting surface S1 of the display panel body 1 may refer to a viewing surface of the display panel body 1 for users to view displayed contents.

[0028] Please also read Figure 2 , is a schematic diagram of the structure of the optical film 2 in some embodiments of the present application.

[0029] like Figure 2 As shown, in some embodiments, the optical film 2 includes a first polarizer layer 21 .

[0030] Among them, since the light leaked from the backlight surface S2 side of the display panel body 1 is the light emitted by the light-emitting element in the display panel body 1, which is similar to natural light, it will become polarized light after passing through the first polarizer layer 21 of the optical film 2, and only part of the light will pass through, thereby filtering out at least part of the light leaked from the backlight surface S2 side of the display panel body 1, and weakening the light leaked from the backlight surface S2 side of the display panel body 1.

[0031] See also Figure 3 , is a further structural schematic diagram of the optical film 2 in some embodiments of the present application.

[0032] In some embodiments, the optical film 2 is used to filter out at least part of the light leaking from the backlight surface S2 side of the display panel body 1, so that the pass rate of the light leaking from the backlight surface S2 side of the display panel body 1 when passing through the optical film 2 is less than or equal to a first pass rate, and is also used to make the pass rate of ambient light entering from the light emitting surface S1 side of the display panel body 1 when passing through the optical film 2 greater than or equal to a second pass rate, and the first pass rate is less than the second pass rate.

[0033] Wherein, in some embodiments, Figure 3 As shown, the optical film 2 includes the first polarizer layer 21 and a first 1 / 4 wave plate layer 22, wherein the first 1 / 4 wave plate layer 22 is stacked on the side of the first polarizer layer 21 close to the display panel body 1, and is located between the first polarizer layer 21 and the display panel body 1.

[0034] That is, in some embodiments, the optical film 2 includes the first polarizer layer 21 and the first quarter wave plate layer 22, and the first polarizer layer 21 and the first quarter wave plate layer 22 are used to filter at least part of the light leaking from the backlight surface S2 side of the display panel body 1, so that the pass rate of the light leaking from the backlight surface S2 side of the display panel body 1 when passing through the optical film 2 is less than or equal to the first pass rate, and the pass rate of the ambient light entering from the light exit surface S1 side of the display panel body 1 when passing through the optical film 2 is greater than or equal to the second pass rate, and the first pass rate is less than the second pass rate. The specific principle will be introduced later.

[0035] Thus, in some embodiments, the optical film 2 has a lower transmittance of light leaking from the backlight surface S2 side of the display panel body 1 than a transmittance of ambient light entering from the light emitting surface S1 side of the display panel body 1. Thus, the degree to which the optical film 2 attenuates ambient light entering from the light emitting surface S1 side of the display panel body 1 is less than the degree to which the optical film 2 attenuates light leaking from the backlight surface S2 side of the display panel body 1. Thus, in addition to filtering out at least part of the light leaking from the backlight surface S2 side of the display panel body 1, the optical film 2 will hardly affect the transmittance of ambient light entering from the light emitting surface S1 side of the display panel body 1 when passing through the optical film 2, and will not attenuate the external ambient light that needs to pass through, or will cause very little attenuation.

[0036] Thus, when a light sensor, such as a brightness sensor, is provided on the side of the optical film 2 of the display panel 100 that is away from the display panel body 1, the ambient light entering from the light-emitting surface S1 of the display panel body 1 will hardly be attenuated / weakened by the optical film 2 when reaching the light sensor after passing through the optical film 2, and will hardly affect the normal lighting of the ambient light by the light sensor. In addition, since at least part of the light leaking from the backlight surface S2 of the display panel body 1 is filtered out, the interference of the light leaking from the backlight surface S2 of the display panel body 1 to the normal data of the light sensor after being transmitted to the light sensor can be effectively avoided or weakened.

[0037] In some embodiments, the first pass rate may be 50%, 40%, etc., and the second pass rate may be 85%, 90%, 95%, etc. Thus, the pass rate of the light leaking from the backlight surface S2 side of the display panel body 1 when passing through the optical film 2 is less than or equal to the first pass rate, for example, less than or equal to 50%, 40%, etc., and half or more of the light can be prevented from passing through, and half or more of the light can be filtered out, and when the light leaking from the backlight surface S2 side of the display panel body 1 passes through the optical film 2, the light leaking from the backlight surface S2 side of the display panel body 1 can be effectively weakened. The pass rate of the ambient light entering from the light emitting surface S1 side of the display panel body 1 when passing through the optical film 2 is greater than or equal to a second pass rate, for example, greater than or equal to 85%, 90%, 95%, etc., so that most or even all of the ambient light entering from the light emitting surface S1 side of the display panel body 1 can pass through the optical film 2, and the ambient light entering from the light emitting surface S1 side of the display panel body 1 is almost not filtered out.

[0038] In some embodiments, when the display panel body 1 has a high transmittance of ambient light entering from the light emitting surface S1 of the display panel body 1 , the optical film 2 may also include only the first polarizer layer 21 .

[0039] Please also read Figure 4 and Figure 5 , Figure 4 is a schematic diagram of a further stacked structure of the display panel 100 in some embodiments of the present application, Figure 5 Schematic diagram of the light path of the display panel 100 in some embodiments of the present application.

[0040] Among them, Figure 4 As shown, the display panel body 1 includes a display layer 11, a second 1 / 4 wave plate layer 12 and a second polarizer layer 13. The second 1 / 4 wave plate layer 12 is stacked on the side of the display layer 11 close to the light exiting surface S1; the second polarizer layer 13 is stacked on the side of the first 1 / 4 wave plate layer 12 away from the display layer 11. In some embodiments, the light leaked from the backlight surface S2 side of the display panel body 1 is the light leaked from the display layer 11 from the backlight surface S2 side of the display panel body 1, and the polarization angle and direction of the second polarizer layer 13 are the same as the polarization angle and direction of the first polarizer layer 21.

[0041] That is, in some embodiments, the display panel body 1 includes a display layer 11, a second quarter wave plate layer 12, and a second polarizer layer 13 stacked in sequence from the backlight surface S2 to the light emitting surface S1. The display layer 11 may include pixel units distributed in an array, and the pixel units at various positions in the pixel units distributed in the array emit light or emit light accordingly according to the content to be displayed, thereby presenting a picture of the corresponding content as a whole.

[0042] Among them, since the display layer 11 is close to the backlight surface S2 of the display panel body 1, and since the light emitted by the display layer 11 is radiated within a certain range, part of the light emitted by the display layer 11 will be emitted from the side of the backlight surface S2 of the display panel body 1 to form the aforementioned light leaked from the side of the backlight surface S2 of the display panel body 1.

[0043] Among them, Figure 4 and Figure 5 As shown, generally speaking, the display panel body 1 sequentially stacks a second quarter wave plate layer 12 and a second polarizer layer 13 on the display layer 11. The ambient light is generally natural light, which can be regarded as unpolarized light. The ambient light L1 entering from the light exit surface S1 of the display panel body 1 will first pass through the second polarizer layer 13 and then become polarized light L2, and then pass through the second quarter wave plate layer 12 and then become, for example, left-handed circularly polarized light L3 after phase delay.

[0044] In the present application, the first 1 / 4 wave plate layer 22 and the second 1 / 4 wave plate layer 12 are used to cause phase delay after the light passes through, wherein the 1 / 4 wave plate layer means that the wave plate layer will delay 1 / 4 wave, that is, delay 90°. Therefore, in some embodiments, the first 1 / 4 wave plate layer 22 and the second 1 / 4 wave plate layer 12 in the present application are both wave plate layers for delaying the phase by 90°.

[0045] In the present application, since the optical film 2 includes the first polarizer layer 21 and the first quarter wave plate layer 22, and the first quarter wave plate layer 22 is stacked on the side of the first polarizer layer 21 close to the display panel body 1, and is located between the first polarizer layer 21 and the display panel body 1, the left-handed circularly polarized light L3 will be phase-delayed again after passing through the first quarter wave plate layer 22, which is equivalent to the ambient light L1 entering from the light-emitting surface S1 side of the display panel body 1 passing through the second polarizer layer 13. The polarized light L2 will undergo two 90° phase delays and be delayed by 180 degrees, so it will still become polarized light. That is, at this time, the left-handed circularly polarized light L3 will become polarized light L4 after passing through the first quarter wave plate layer 22, and the polarization direction of the polarized light L4 is parallel to the polarization direction of the polarized light L2. For example, the two differ by 180°, that is, they are in a parallel relationship, so the direction and angle can still be regarded as the same. Since the polarization angle and direction of the second polarizer layer 13 are the same as the polarization angle and direction of the first polarizer layer 21, the angle and direction of the polarized light L4 will also be the same as the polarization angle and direction of the first polarizer layer 21. When the polarized light L4 passes through the first polarizer layer 21 with basically the same polarization direction and angle, it will basically not be blocked and can pass through the first polarizer layer 21 without loss.

[0046] Among them, when natural light or other unpolarized light passes through the polarizer layer, it will form polarized light with corresponding angle and direction according to the polarization angle and direction of the polarizer layer when passing through the polarizer layer. Therefore, after the ambient light L1 passes through the second polarizer layer 13 and becomes polarized light L2, the angle and direction of the polarized light L2 are respectively the same as the polarization angle and direction of the second polarizer layer 13. As mentioned above, the polarization direction of the polarized light L4 formed by the polarized light L2 passing through the second polarizer layer 13 and the first polarizer layer 21 is parallel to the polarization direction of the polarized light L2, so the direction and angle can still be regarded as the same. Since the polarization angle and direction of the second polarizer layer 13 are the same as the polarization angle and direction of the first polarizer layer 21, the angle and direction of the polarized light L4 will also be the same as the polarization angle and direction of the first polarizer layer 21. When the polarized light L4 passes through the first polarizer layer 21, it will basically not be blocked, and can pass through the first polarizer layer 21 without loss.

[0047] As mentioned above, the light L11 leaked from the backlight surface S2 side of the display panel body 1 is the light emitted by the light-emitting element in the display panel body 1, which is similar to natural light, that is, non-polarized light. After passing through the first polarizer layer 21 of the optical film 2, it will become polarized light L12, and only part of the light will pass through, so as to filter out at least part of the light leaked from the backlight surface S2 side of the display panel body 1, and weaken the light leaked from the backlight surface S2 side of the display panel body 1. Among them, since for non-polarized light, after the phase is delayed by a quarter wavelength after passing through the first 1 / 4 wave plate layer 22, it is still non-polarized light, so the first 1 / 4 wave plate layer 22 can also be regarded as having basically no effect on the light L11 leaked from the backlight surface S2 side of the display panel body 1. Therefore, for the light L11 leaked from the backlight surface S2 side of the display panel body 1, it can be regarded as only becoming polarized light after passing through the first polarizer layer 21 of the optical film 2, and at least part of the light is filtered out.

[0048] Therefore, in the present application, the first polarizer layer 21 and the first quarter wave plate layer 22 can be used to filter out at least a portion of the light leaking from the backlight surface S2 side of the display panel body 1, so that the pass rate of the light leaking from the backlight surface S2 side of the display panel body 1 when passing through the optical film 2 is less than or equal to the first pass rate, and the pass rate of the ambient light entering from the light emitting surface S1 side of the display panel body 1 when passing through the optical film 2 is greater than or equal to the second pass rate, and the first pass rate is less than the second pass rate.

[0049] In some embodiments, the polarization angle of the second polarizer layer 13 and the polarization angle of the first polarizer layer 21 are angles relative to a transmission axis, wherein the transmission axis is parallel to the light-emitting surface S1 or the backlight surface S2 of the display panel body 1, and the polarization angle of the second polarizer layer 13 and the polarization angle of the first polarizer layer 21 are also angles between the light-emitting surface S1 or the backlight surface S2 of the display panel body 1. In some embodiments, the polarization angle of the second polarizer layer 13 and the polarization angle of the first polarizer layer 21 can be 45° or the like.

[0050] Among them, in the present application, "A" is stacked on "B", including "A" and "B" are in direct contact, and directly stacked on "B", and also includes "C" is arranged between "A" and "B", and can be indirectly stacked on "B" through "C". Among them, above or on a certain layer in the present application refers to the side of the layer facing the light emitting surface S1 of the display panel 100. Among them, in the present application, unless otherwise specified, the areas of the layers of the display panel 100 are roughly the same, that is, the projections of the layers of the display panel 100 along the stacking direction roughly overlap, so as to form the display panel 100 with a multi-layer structure.

[0051] See also Figure 6 , which is a further schematic diagram of the stacking structure of the display panel 100 in some embodiments of the present application.

[0052] Among them, Figure 6 As shown, in some embodiments, the display panel body 1 also includes a shading functional layer 14 arranged on the side of the display layer 11 close to the backlight surface S2, wherein a light-transmitting hole K1 is opened in a preset area of ​​the shading functional layer 14 to allow ambient light entering from the light-emitting surface S1 side of the display panel body 1 to pass through.

[0053] That is, in some embodiments, in order to allow the light emitted by the display layer 11 to be mainly emitted from the light emitting surface S1 side of the display panel body 1, the display panel body 1 may further include a light shielding function layer 14 disposed on the side of the display layer 11 close to the backlight surface S2 to block the light of the display layer 11 from the backlight surface S2 side. In order to allow the ambient light entering from the light emitting surface S1 side of the display panel body 1 to be transmitted to the light sensor located on the side of the optical film 2 away from the display panel body 1, a light-transmitting hole K1 is provided in a preset area of ​​the light shielding function layer 14 to allow the ambient light entering from the light emitting surface S1 side of the display panel body 1 to pass through and be received by the light sensor.

[0054] Among them, in some embodiments, the light leaked from the backlight surface S2 side of the display panel body 1 specifically reaches the optical film 2 through the light-transmitting hole K1, and the ambient light entering from the light-emitting surface S1 side of the display panel body 1 specifically passes through the second polarizer layer 13, the second 1 / 4 wave plate layer 12 and the display layer 11 of the display panel body 1, and then reaches the optical film 2 through the light-transmitting hole K1.

[0055] That is, in some embodiments, the backlight surface S2 of the display panel body 1 may refer to the surface of the shading functional layer 14 that faces away from the display layer 11, and the light leaking from the backlight surface S2 side of the display panel body 1 is specifically the light leaking from the light transmission hole K1, and the ambient light entering from the light output surface S1 side of the display panel body 1 is specifically the light passing through the second polarizer layer 13, the second 1 / 4 wave plate layer 12 and the display layer 11 of the display panel body 1, and then passing through the light transmission hole K1 to reach the optical film 2, and then after passing through the optical film 2, it can be received by the corresponding light sensor.

[0056] In some embodiments, all layers of the display panel body 1 except the light-shielding functional layer 14 have a certain degree of light transmittance. Therefore, other layers of the display panel body 1 except the light-shielding functional layer 14 do not need to have holes, thereby reducing the screen openings, increasing the screen-to-body ratio, simplifying the manufacturing process, and saving costs.

[0057] In some embodiments, the first polarizer layer 21 is provided with a polarizer structure 21b at least in a polarizer region 21a corresponding to the light transmission hole K1, and the first 1 / 4 wave plate layer 22 is provided with a 1 / 4 wave plate structure 22b at least in a wave plate region 22a corresponding to the light transmission hole K1.

[0058] That is, in some embodiments, the first polarizer layer 21 may be provided with a polarizer structure 21b at least in the polarizer region 21a corresponding to the light transmission hole K1, and the first 1 / 4 wave plate layer 22 may also be provided with a 1 / 4 wave plate structure 22b at least in the wave plate region 22a corresponding to the light transmission hole K1.

[0059] Among them, the polarizer area 21a corresponding to the light-transmitting hole K1 may refer to the projection of the light-transmitting hole K1 on the first polarizer layer 21 located within the polarizer area 21a, and the wave plate area 22a corresponding to the light-transmitting hole K1 may also refer to the projection of the light-transmitting hole K1 on the first 1 / 4 wave plate layer 22 located within the wave plate area 22a.

[0060] The polarizer structure 21b may refer to a structure having a polarizer or having the function of a polarizer, and the 1 / 4 wave plate structure 22b may refer to a structure having a 1 / 4 wave plate or having the function of a 1 / 4 wave plate.

[0061] Among them, Figure 6 As shown, in some embodiments, the entire first polarizer layer 21 is the polarizer region 21a, and the entire first quarter wave plate layer 22 is the wave plate region 22a. That is, in some embodiments, the entire first polarizer layer 21 is provided with a polarizer structure, and the entire first quarter wave plate layer 22 is provided with a quarter wave plate structure.

[0062] See also Figure 7 , is a further schematic diagram of another stacked structure of the display panel 100 in some embodiments of the present application.

[0063] like Figure 7 As shown, in some embodiments, the first polarizer layer 21 is provided with a polarizer structure 21b in a polarizer region 21a corresponding to the light-transmitting hole K1, and a light-shielding glue 21d is provided in a region 21c outside the polarizer region 21a corresponding to the light-transmitting hole K1.

[0064] That is, in some embodiments, the first polarizer layer 21 may include a polarizer region 21a and a region 21c outside the polarizer region 21a, and the polarizer structure 21b is provided in the polarizer region 21a, and a light shielding glue 21d is provided in the region 21c outside the polarizer region 21a. In this case, the first polarizer layer 21 may be a structural layer in which the polarizer structure 21b and the light shielding glue 21d are co-layered. The light shielding glue 21d can provide a light shielding effect and realize the bonding and fixing function of the first polarizer layer 21 and other layers.

[0065] The thickness of the polarizer structure 21b is the same as the thickness of the light-shielding glue 21d. The polarizer structure 21b is arranged in the polarizer region 21a, and the light-shielding glue 21d is arranged in the region 21c outside the polarizer region 21a to form a complete first polarizer layer 21.

[0066] In some embodiments, Figure 7 As shown, the first 1 / 4 wave plate layer 22 is provided with a 1 / 4 wave plate structure 22b in a wave plate region 22a corresponding to the light transmission hole K1, and a light shielding glue 22d is provided in a region 22c outside the wave plate region 22a corresponding to the light transmission hole K1.

[0067] That is, in some embodiments, the first 1 / 4 wave plate layer 22 may include the wave plate region 22a and the region 22c outside the wave plate region 22a, and the 1 / 4 wave plate structure 22b is provided in the wave plate region 22a, and the light shielding glue 22d is provided in the region 22c outside the wave plate region 22a. In this case, the first 1 / 4 wave plate layer 22 may also be a structural layer in which the 1 / 4 wave plate structure 22b and the light shielding glue 22d are co-layered. The light shielding glue 22d can provide a light shielding effect and realize the bonding and fixing function of the first 1 / 4 wave plate layer 22 and other layers.

[0068] Among them, the thickness of the 1 / 4 wave plate structure 22b is also the same as the thickness of the shading glue 22d. The 1 / 4 wave plate structure 22b is set in the wave plate area 22a, and the shading glue 22d is set in the area 22c outside the wave plate area 22a to form a complete first polarizer layer 21.

[0069] Therefore, in some embodiments, the first polarizer layer 21 may be provided with the polarizer structure 21b only in a partial area, and the first quarter wave plate layer 22 may be provided with the quarter wave plate structure 22b only in a partial area, which can save costs.

[0070] Obviously, in some embodiments, the first polarizer layer 21 may be provided with the polarizer structure 21b on the entire layer, and the first 1 / 4 wave plate layer 22 may only have the 1 / 4 wave plate structure 22b in a partial area. Alternatively, the first polarizer layer 21 may be provided with the polarizer structure 21b only in a partial area, and the first 1 / 4 wave plate layer 22 may be provided with the 1 / 4 wave plate structure 22b on the entire layer, as long as the polarizer structure 21b and the 1 / 4 wave plate structure 22b are provided at the same time in the area corresponding to the light transmission hole K1.

[0071] See also Figure 8 , which is a further schematic diagram of a stacked structure of the display panel 100 in some embodiments of the present application.

[0072] In some embodiments, Figure 8 As shown, the first quarter wave plate layer 22 is accommodated in the light transmission hole K1 of the light shielding functional layer 14 .

[0073] That is, in some embodiments, Figure 8 As shown, the size of the first 1 / 4 wave plate layer 22 can be smaller than the sizes of other layers of the display panel 100, and the size and shape of the first 1 / 4 wave plate layer 22 can be roughly the same as the aperture and shape of the light-transmitting hole K1 of the light-shielding functional layer 14, and can be accommodated in the light-transmitting hole K1 of the light-shielding functional layer 14.

[0074] Thus, through Figure 8 The structure shown can effectively reduce the thickness caused by the first quarter wave plate layer 22 , making the overall thickness of the display panel 100 thinner.

[0075] Among them, Figure 8In the structure shown, the entire layer of the first quarter wave plate layer 22 is provided with the quarter wave plate structure 22b, so that all the light passing through the light transmission hole K1 can be phase shifted. In some embodiments, the first quarter wave plate layer 22 can also be provided with the quarter wave plate structure 22b in only a part of the area, so as to phase shift at least part of the light passing through the light transmission hole K1.

[0076] Among them, Figure 8 As shown, in some embodiments, the thickness of the first quarter wave plate layer 22 may be the same as the thickness of the light shielding functional layer 14, and the light transmission hole K1 is completely blocked. In some embodiments, the thickness of the first quarter wave plate layer 22 may also be less than the thickness of the light shielding functional layer 14.

[0077] See also Fig. 9 , which is a further schematic diagram of a stacked structure of the display panel 100 in some embodiments of the present application.

[0078] In some embodiments, Fig. 9 As shown, the first quarter wave plate layer 22 and the first polarizer layer 21 can both be accommodated in the light-transmitting hole K1 of the light-shielding functional layer 14 .

[0079] That is, in some embodiments, Fig. 9 As shown, the first 1 / 4 wave plate layer 22 and the first polarizer layer 21 can be smaller than the size of other layers of the display panel 100, and the first 1 / 4 wave plate layer 22 and the first polarizer layer 21 can be roughly the same as the aperture and shape of the light-transmitting hole K1 of the light-shielding functional layer 14, and both are accommodated in the light-transmitting hole K1 of the light-shielding functional layer 14.

[0080] Thus, through Fig. 9 The structure shown can further reduce the thickness of the first quarter wave plate layer 22 and the first polarizer layer 21 , so that the overall thickness of the display panel 100 can be thinner.

[0081] Among them, Fig. 9 In the structure shown, the entire first 1 / 4 wave plate layer 22 is provided with the 1 / 4 wave plate structure 22b, and the entire first polarizer layer 21 is provided with the polarizer structure 21b, so that all light passing through the light-transmitting hole K1 can be phase-shifted and polarized. In some embodiments, only a part of the first 1 / 4 wave plate layer 22 may be provided with the 1 / 4 wave plate structure 22b, and only a part of the first polarizer layer 21 may be provided with the polarizer structure 21b.

[0082] Among them, Fig. 9As shown, in some embodiments, the overall thickness of the first 1 / 4 wave plate layer 22 and the first polarizer layer 21 may be the same as the thickness of the light shielding functional layer 14, and the light transmission hole K1 is completely blocked. In some embodiments, the overall thickness of the first 1 / 4 wave plate layer 22 and the first polarizer layer 21 may also be less than the thickness of the light shielding functional layer 14.

[0083] Therefore, in the present application, the optical film 2 is arranged on the side of the backlight surface S2 of the display panel body 1, which may mean that the optical film 2 is stacked on the backlight surface S2 of the display panel body 1, or it may mean that at least a portion of the optical film 2 is located in the light-transmitting hole K1 of the light-shielding functional layer 14, and is located on the side of the backlight surface S2 of the display panel body 1.

[0084] See also Fig.10 , is a partial stacking diagram illustrating a multi-layer structure of the display panel 100 in some embodiments of the present application.

[0085] Among them, Fig.10 The display layer 11 includes pixel units 111 arranged in rows and columns, and the pixel units 111 are used for luminous display. Fig.10 As shown, the display panel body 1 further includes a black matrix layer 15, wherein the black matrix layer 15 is located between the display layer 11 and the second quarter wave plate layer 12. A plurality of through holes 151 are distributed on the black matrix layer 15, and each through hole 151 is arranged corresponding to a pixel unit 111 to allow light of the pixel unit 111 to pass through.

[0086] Among them, the black matrix layer 15 is used to achieve a certain shading effect to avoid light crosstalk between different pixel units 111, and a plurality of through holes 151 are distributed on the black matrix layer 15, each through hole 151 is arranged corresponding to a pixel unit 111, so that the light of the pixel unit 111 can pass through and be transmitted to the light emitting surface S1 side of the display panel body 1, so as to realize the corresponding display function.

[0087] In some embodiments, each pixel unit 111 may include three sub-pixel units, which are the smallest pixel units. The three sub-pixel units correspond to the three primary colors of red, green, and blue. When different combinations of sub-pixel units in the three sub-pixel units emit light and / or the light-emitting brightness of the currently emitting sub-pixel units is different, they can be mixed into different colors, so that the pixel unit 111 can present the corresponding color, that is, emit light of the corresponding color.

[0088] In this application, the pixel unit 111 may also be referred to as a light-emitting unit, and the three sub-pixel units may be three light-emitting elements for emitting light of different colors, for example, three OLEDs (Organic Light-Emitting Diodes), etc. By emitting light through different combinations of light-emitting elements in the pixel unit 111 and / or controlling the light-emitting brightness of the currently emitting light-emitting elements, different colors may be mixed, so that the pixel unit 111 may present corresponding colors, i.e., emit light of corresponding colors.

[0089] In some embodiments, Fig.10 As shown, the display panel 100 further includes a driving layer 16 , which is disposed on a side of the display layer 11 away from the black matrix layer 15 , and is used to drive the pixel units 111 of the display layer 11 to emit light.

[0090] That is, in some embodiments, the display panel 100 may further include a driving layer 16 to drive the pixel units 111 of the display layer 11 to emit light.

[0091] In some embodiments, the driving layer 16 may include a TFT thin film transistor array, and the driving layer 16 is connected between the driving circuit and the pixel units 111 distributed in rows and columns, and is used to apply the driving voltage provided by the driving circuit to the corresponding pixel units 111 to drive the pixel units 111 to emit light and display.

[0092] Among them, as mentioned above, the sub-pixel unit included in the pixel unit 111 can be an OLED, the cathode of the OLED is grounded, and the anode is connected to the driving layer 16, and the driving layer 16 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 111, so that at least part of the sub-pixel units in the corresponding pixel unit 111 are powered on and emit light, so that the at least part of the sub-pixel units that emit light generate corresponding color light and are mixed into the color finally presented by the corresponding pixel unit 111, so that the pixel unit 111 displays the corresponding color.

[0093] In some embodiments, the display panel 100 is a touch display panel. Fig.10 As shown, the display panel 100 further includes a touch layer 17 , wherein the touch layer 17 is located between the display layer 11 and the black matrix layer 15 , and is used to realize a touch function.

[0094] Among them, Fig.10As shown, the touch layer 17 includes a plurality of metal wirings 171 arranged in rows and columns, wherein the plurality of metal wirings 171 arranged in rows and columns intersect to form a light-transmitting area Q1 for light from the pixel unit 111 to pass through.

[0095] Among them, the touch layer 17 is a capacitive touch structure, and the intersection of the metal trace 171 in the row direction and the metal trace 171 in the column direction corresponds to a touch point. In response to pressing a certain position of the touch display panel 100, the distance between the metal trace 171 in the row direction and the metal trace 171 in the column direction at the corresponding position will change, causing a corresponding capacitance change at the position, which can reflect that a touch has occurred at the current position, thereby realizing the touch function.

[0096] in, Fig.10 In order to illustrate the more specific structural layers of the display panel body 1, the optical film 2 is illustrated by taking the structure including the first polarizer layer 21 and the first quarter wave plate layer 22 as the whole layer as an example, that is, Figure 6 Obviously, the optical film 2 can also be a structure in any of the above embodiments.

[0097] in, Fig.10 Only a partial structure is shown schematically, for example, only one pixel unit 111 is shown schematically.

[0098] In some embodiments, the display panel body 1 may be a conventional display panel, and the display panel 100 of the present application may be a conventional display panel with the optical film 2 added thereto.

[0099] In some embodiments, an optical adhesive layer may be provided between two adjacent layers of the display panel 100 as required to bond and fix the two adjacent layers. The optical adhesive layer may be made of a glue material that allows light to pass through, for example, a transparent glue material.

[0100] Thus, the display panel 100 of the present application, by arranging the optical film 2 on the side of the backlight surface S2 of the display panel body 1, the optical film 2 is used to filter out at least part of the light leaking from the side of the backlight surface S2 of the display panel body 1, so as to reduce the light leaking from the side of the backlight surface S2 of the display panel body 1, and avoid or reduce the influence on the components located on the side of the backlight surface S2 of the display panel body 1, such as the brightness sensor. In addition, the optical film 2 of the present application is also used to make the pass rate of the ambient light entering from the side of the light emitting surface S1 of the display panel body 1 greater than or equal to the second pass rate when passing through the optical film 2, so that most or even all of the ambient light entering from the side of the light emitting surface S1 of the display panel body 1 can pass through the optical film 2, without causing attenuation or causing very little attenuation to the light that needs to pass.

[0101] In some embodiments, the present application may also provide the optical film 2 separately, and the optical film 2 is used to be arranged on the backlight surface S2 side of the display panel body 1 to filter at least part of the light leaking from the backlight surface S2 side of the display panel body 1.

[0102] In some embodiments, as described above, the optical film 2 includes a first polarizer layer 21 to prevent at least part of the light leaking from the backlight surface S2 side of the display panel body 1 from passing through the first polarizer layer 21, and to filter out at least part of the light leaking from the backlight surface S2 side of the display panel body 1.

[0103] In some embodiments, as described above, Figure 3As shown, the optical film 2 may include the first polarizer layer 21 and a first 1 / 4 wave plate layer 22, wherein the first 1 / 4 wave plate layer 22 is stacked on the first polarizer layer 21, wherein when the optical film 2 is disposed on the backlight surface S2 side of the display panel body 1, the first 1 / 4 wave plate layer 22 is closer to the display panel body 1, that is, it is stacked on the side of the first polarizer layer 21 close to the display panel body 1, and is located between the first polarizer layer 21 and the display panel body 1. In some embodiments, the optical film 2 includes the first polarizer layer 21 and the first quarter wave plate layer 22, and the first polarizer layer 21 and the first quarter wave plate layer 22 are used to filter at least part of the light leaking from the backlight surface S2 of the display panel body 1, so that the pass rate of the light leaking from the backlight surface S2 of the display panel body 1 when passing through the optical film 2 is less than or equal to the first pass rate, and the pass rate of the ambient light entering from the light exit surface S1 of the display panel body 1 when passing through the optical film 2 is greater than or equal to the second pass rate, and the first pass rate is less than the second pass rate. For more specific content about the optical film 2, please refer to the above description, which will not be repeated here.

[0104] See also Fig.11 , is a schematic diagram of the stacking of the display screen 110 in some embodiments of the present application.

[0105] The display screen 110 includes the display panel 100 in any of the aforementioned embodiments, and further includes a glass cover plate 101 .

[0106] The glass cover plate 101 is stacked on the light emitting surface S1 of the display panel 100 , that is, one side of the display surface, and serves as a protection plate for the display panel 100 .

[0107] Please also read Fig.12 as well as Fig.13 , Fig.12 This is a structural block diagram of an electronic device 200 in some embodiments of the present application. Fig.13 FIG. 2 is a side view schematically showing a partial structure of the electronic device 200. Fig.12 and Fig.13 As shown, the electronic device 200 includes the display screen 110 and the light sensor 120 .

[0108] Among them, Fig.13 As shown, the optical sensor 120 is located on the side of the display panel 100 away from the glass cover 101, that is, located on the side of the optical film 2 of the display panel 100 away from the display panel body 1. Fig.13Specifically, it may be a cross-sectional view showing a partial structure viewed from a side frame of the electronic device 200 that is perpendicular to the plane of the display screen 110 .

[0109] Among them, the optical film 2 in the display panel 100 can filter out at least part of the light leaking from the backlight surface S2 side of the display panel body 1, thereby reducing the light leaking from the backlight surface S2 side of the display panel body 1, and avoiding or reducing the interference caused to the light sensor 120 located on the backlight surface S2 side of the display panel body 1. In addition, the optical film 2 of the present application is also used to make the pass rate of the ambient light entering from the light emitting surface S1 side of the display panel body 1 greater than or equal to the second pass rate when passing through the optical film 2, so that most or even all of the ambient light entering from the light emitting surface S1 side of the display panel body 1 can pass through the optical film 2, without causing attenuation or causing very little attenuation to the ambient light that needs to pass, and can also improve the detection accuracy of the ambient light by the light sensor 120.

[0110] In some embodiments, the light sensor 120 may be a brightness sensor for detecting the brightness of the ambient light of the electronic device 200 so as to adjust the display brightness of the display screen 110 of the electronic device 200 to match the brightness of the ambient light.

[0111] In some embodiments, the light sensor 120 may also be any other suitable light sensor. For example, the light sensor 120 may also be an image sensor, and is used to collect light on one side of the display screen 110 for optical imaging. In some embodiments, when the light sensor 120 is an image sensor, it may specifically be an image sensor in a front camera module, which is used to realize light collection and imaging processing in front shooting. For another example, in some embodiments, the light sensor 120 may also be an optical fingerprint sensor, which is used to collect light on one side of the display screen 110 for optical fingerprint imaging.

[0112] Please return to Fig.12 ,like Fig.12 As shown, in some embodiments, the electronic device 200 may further include a processor 130, wherein the processor 130 is connected to the light sensor 120, and is used to obtain data generated by the light sensor 120 when collecting ambient light, and perform corresponding processing based on the data.

[0113] For example, in some embodiments, when the light sensor 120 is a brightness sensor, the light sensor 120 detects the brightness of the ambient light of the electronic device 200 to obtain brightness data, and the processor 130 controls the display brightness of the display screen 110 of the electronic device 200 according to the brightness data to adjust it to match the brightness of the current ambient light.

[0114] For another example, when the light sensor 120 is an image sensor, which is used to collect light from one side of the display screen 110 and perform optical imaging to obtain image data, the processor 130 processes the image data to generate a corresponding picture or video. For another example, in some embodiments, the light sensor 120 is an optical fingerprint sensor, which is used to collect light from one side of the display screen 110 and perform optical fingerprint imaging to obtain fingerprint image data, the processor 130 can compare the fingerprint image data with the pre-stored fingerprint image template data, and when the two match, control the execution of functions such as unlocking or payment.

[0115] See also Fig.14 , which is a plan view of an electronic device 200 in some embodiments of the present application.

[0116] Among them, Fig.14 As shown, the electronic device 200 includes the aforementioned display screen 110 , that is, also includes the display panel 100 in any of the aforementioned embodiments.

[0117] Among them, Fig.14 As shown, the electronic device 200 includes a top end D1, a bottom end D2 and two side ends D3. The optical sensor 120 can be disposed at a position of the electronic device 200 close to the top end D1.

[0118] 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.

[0119] The optical sensor 120 may also be disposed at other suitable positions of the electronic device 200 . For example, when the optical sensor 120 is an optical fingerprint sensor, it may also be disposed at a position of the electronic device 200 close to the bottom end D2 .

[0120] 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.

[0121] The electronic device 200 of the present application may be a mobile phone, a tablet computer, a laptop computer or other electronic device.

[0122] Through the display panel 100, display screen 110 and electronic device 200 in the present application, the display panel 100 of the present application, by setting the optical film 2 on the side of the backlight surface S2 of the display panel body 1, the optical film 2 is used to filter out at least part of the light leaking from the side of the backlight surface S2 of the display panel body 1, so as to reduce the light leaking from the side of the backlight surface S2 of the display panel body 1, and avoid or reduce the impact on the components located on the side of the backlight surface S2 of the display panel body 1, such as brightness sensors. In addition, the optical film 2 of the present application is also used to make the pass rate of the ambient light entering from the side of the light emitting surface S1 of the display panel body 1 greater than or equal to the second pass rate when passing through the optical film 2, so that most or even all of the ambient light entering from the side of the light emitting surface S1 of the display panel body 1 can pass through the optical film 2, without causing attenuation or causing very little attenuation to the light that needs to pass.

[0123] 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.

[0124] 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 display panel, characterized in that: include: The display panel body comprises a light emitting surface and a backlight surface opposite to each other; as well as The optical film is arranged on one side of the backlight surface of the display panel body, and the optical film is at least used to filter out at least part of the light leaking from the backlight surface of the display panel body.

2. The display panel according to claim 1, characterized in that: The optical film includes a first polarizer layer.

3. The display panel according to claim 1, characterized in that: The optical film is used to filter out at least part of the light leaking from the backlight side of the display panel body, so that the pass rate of the light leaking from the backlight side of the display panel body when passing through the optical film is less than or equal to a first pass rate, and is also used to make the pass rate of ambient light entering from the light emitting side of the display panel body when passing through the optical film greater than or equal to a second pass rate, and the first pass rate is less than the second pass rate.

4. The display panel according to claim 3, characterized in that: The optical film includes a first polarizer layer and a first quarter wave plate layer which are stacked, wherein the first quarter wave plate layer is stacked on a side of the first polarizer layer close to the display panel body and is located between the first polarizer layer and the display panel body.

5. The display panel according to claim 4, characterized in that: The display panel body comprises: Display layer; A second quarter wave plate layer is stacked on a side of the display layer close to the light emitting surface; A second polarizer layer, stacked on a side of the second quarter wave plate layer away from the display layer; The light leaked from the backlight side of the display panel body is the light leaked from the display layer from the backlight side of the display panel body, wherein the polarization angle and direction of the second polarizer layer are the same as the polarization angle and direction of the first polarizer layer.

6. The display panel according to claim 5, characterized in that: The display panel body further comprises a light shielding function layer arranged on a side of the display layer close to the backlight surface, wherein a light-transmitting hole is provided in a preset area of ​​the light shielding function layer to allow ambient light entering from a light-emitting surface side of the display panel body to pass through.

7. The display panel according to claim 6, characterized in that: The first polarizer layer is provided with a polarizer structure at least in the polarizer region corresponding to the light-transmitting hole, and the first 1 / 4 wave plate layer is provided with a 1 / 4 wave plate structure at least in the wave plate region corresponding to the light-transmitting hole.

8. The display panel according to claim 7, characterized in that: The first polarizer layer is provided with a polarizer structure in a polarizer region corresponding to the light-transmitting hole, and a light-shielding glue is provided in a region outside the polarizer region corresponding to the light-transmitting hole.

9. The display panel according to claim 7, characterized in that: The first 1 / 4 wave plate layer is provided with a 1 / 4 wave plate structure in the wave plate region corresponding to the light-transmitting hole, and a light-shielding glue is provided in the region outside the wave plate region corresponding to the light-transmitting hole.

10. The display panel according to claim 7, characterized in that: The first polarizer layer is entirely provided with a polarizer structure, and the first 1 / 4 wave plate layer is entirely provided with a 1 / 4 wave plate structure.

11. A display screen, characterized in that: The display screen comprises a glass cover and a display panel as claimed in any one of claims 1 to 10.

12. An electronic device, characterized in that: The electronic device comprises the display screen as claimed in claim 10.

13. The electronic device according to claim 12, characterized in that: The electronic device further includes a light sensor, which is disposed on a side of the optical film away from the display panel body.

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