Display panel and display device

By setting a reflective layer and a second anode in the anti-peeping area of ​​the display panel, adjusting the light to improve the anti-peeping brightness, the problem of insufficient brightness in the anti-peeping mode is solved, and better anti-peeping effect and light utilization are achieved.

CN117794313BActive Publication Date: 2025-01-07HKC CORP LTD
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Patent Information

Application Number
CN202311836140.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-27
Publication Date
2025-01-07
Estimated Expiration
2043-12-27

AI Technical Summary

Technical Problem

The existing display panel has a low brightness in the anti-peeping area in anti-peeping mode, which affects the user experience and leads to a less obvious anti-peeping effect.

Method used

The reflective layer and the second anode are arranged in the anti-sighting area of ​​the display panel. Through the coordination of the reflective layer and the second anode, light is reflected and adjusted, so that more light enters the anti-sighting area, and the anti-sighting brightness and light utilization rate are improved.

Benefits of technology

It effectively improves the anti-peeping effect and brightness uniformity of the display panel in anti-peeping mode, improves light utilization, and enhances the display effect and product competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application discloses a display panel and a display device, wherein the display panel includes a substrate, a plurality of first anodes are laid out at intervals on the substrate, a pixel definition layer is arranged between two adjacent first anodes, a cathode layer is laid out on the first light-emitting layer and the pixel definition layer; an encapsulation layer is arranged on the cathode layer; an anti-peeping sub-pixel is arranged in the anti-peeping area, the anti-peeping sub-pixel is arranged on the pixel definition layer in the anti-peeping area, the anti-peeping sub-pixel includes a second anode and a second light-emitting layer, the second light-emitting layer is arranged on the second anode, and the cathode layer covers the second light-emitting layer; a light-shielding layer and a reflective layer are arranged at the position of the encapsulation layer corresponding to the anti-peeping sub-pixel, the light-shielding layer and the reflective layer are both located above the anti-peeping sub-pixel, and the reflective layer is located between the light-shielding layer and the anti-peeping sub-pixel; the second anode reflects part of the light transmitted from the reflective layer into the anti-peeping area. The present application compensates for the anti-peeping brightness of the display panel in the anti-peeping mode and improves the anti-peeping effect by the above method.
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Description

Technical Field

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

[0002] With the increasing use of display devices such as mobile phones and computers, people pay special attention to the privacy of using display devices. In some cases, users hope that the information displayed in the display device will not be known by other users around them. Therefore, more and more display devices have anti-peeping functions.

[0003] Currently, display panels that usually have an anti-peeping function need to enter the anti-peeping mode when the anti-peeping light source is turned on. However, since the brightness in the anti-peeping area is often low, the actual anti-peeping effect is not obvious, which affects the user experience.

[0004] Therefore, how to compensate the anti-peeping brightness of the anti-peeping area of ​​the display panel in the anti-peeping mode and improve the anti-peeping effect of the display panel has become an urgent problem to be solved in the art. Summary of the invention

[0005] The present application discloses a display panel and a display device, the purpose of which is to compensate for the anti-peeping brightness of the anti-peeping area of ​​the display panel in the anti-peeping mode and improve the anti-peeping effect of the display panel.

[0006] The present application discloses a display panel, which is divided into a display area and an anti-peeping area, wherein the display area is arranged adjacent to the anti-peeping area, and the display panel comprises a base substrate, on which a plurality of first anodes are arranged at intervals, and the plurality of first anodes are located in the display area; a pixel definition layer is arranged between two adjacent first anodes, a first light-emitting layer is arranged on the first anode, and a cathode layer is arranged on the first light-emitting layer and the pixel definition layer; an encapsulation layer is arranged on the cathode layer; an anti-peeping sub-pixel is arranged in the anti-peeping area, and the anti-peeping sub-pixel is arranged on the pixel definition layer in the anti-peeping area, and the anti-peeping sub-pixel comprises a second anode and a second light-emitting layer, the second light-emitting layer is arranged on the second anode, and the cathode layer covers the second light-emitting layer; a light-shielding layer and a reflective layer are arranged on the encapsulation layer corresponding to the position of the anti-peeping sub-pixel, the light-shielding layer and the reflective layer are both located above the anti-peeping sub-pixel, and the reflective layer is located between the light-shielding layer and the anti-peeping sub-pixel; the second anode reflects part of the light transmitted from the reflective layer into the anti-peeping area.

[0007] Optionally, the first anode, the second anode and the reflective layer are all polygonal structures.

[0008] Optionally, an angle α between one side of the reflective layer and the light shielding layer satisfies the relationship of 30°<α<75°.

[0009] Optionally, an angle β between a side edge of the second anode and the pixel definition layer in the anti-peeping area satisfies the relationship 0°<β<60°.

[0010] Optionally, at least one of the second anode and the reflective layer is a triangular structure or a trapezoidal structure.

[0011] Optionally, the reflective layer is a right-angled trapezoidal structure, the second anode is a right-angled triangle structure, the inclined surface of the reflective layer faces the display area, and the inclined surface of the second anode faces the anti-peeping area.

[0012] Optionally, the first anode is a right-angled triangle structure, and the right-angled side of the first anode and the right-angled side of the second anode are on the same side or on different sides.

[0013] Optionally, the second anode is an isosceles triangle structure, the reflective layer is an isosceles trapezoid structure, and the vertex angle of the second anode corresponds to the middle of the upper base of the reflective layer.

[0014] Optionally, the first anode is an isosceles triangle structure, and a side of the first anode corresponds to a side of the reflective layer.

[0015] The present application discloses a display device, including a housing. The display device also includes the above-mentioned display panel, and the display panel is arranged in the housing.

[0016] The present application sets a reflective layer in the anti-peeping area of ​​the display panel, corresponding to the position of the light shielding layer above the anti-peeping sub-pixel, so that the reflective layer is below the light shielding layer and corresponds to the second anode in the anti-peeping sub-pixel; when the anti-peeping sub-pixel is turned on, the light emitted by the second light-emitting layer in the anti-peeping sub-pixel is emitted to the reflective layer, and the reflective layer reflects the light to the anti-peeping large viewing angle range for anti-peeping brightness compensation. At the same time, the light emitted downward by the second light-emitting layer is reflected to the anti-peeping large viewing angle range through the second anode for anti-peeping brightness compensation; in this process, part of the light from the reflective layer is emitted to the second anode, and the second anode adjusts the direction of the light and then emits it to the large viewing angle range and the reflective layer; at the same time, part of the light from the second anode is also emitted to the reflective layer, and then the reflective layer adjusts the direction of the light and then emits it to the large viewing angle range and the second anode. In this way, through the cooperation between the reflective layer and the second anode, the light can adjust the light path after repeated reflection, so that more light can enter the anti-peeping area, and the brightness of the anti-peeping area is compensated, thereby improving the anti-peeping effect of the display panel and improving the light utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 A schematic diagram of a first embodiment of a display panel of the present application;

[0019] Figure 2 A light path diagram of light in the anti-peeping area in the first embodiment of the display panel of the present application;

[0020] Figure 3 A schematic diagram of a second embodiment of a display panel of the present application;

[0021] Figure 4 A light path diagram of light irradiating the anti-peeping area in the second embodiment of the display panel of the present application;

[0022] Figure 5 is a schematic diagram of a third embodiment of a display panel of the present application;

[0023] Figure 6 This is a light path diagram of light irradiating the display area in the third embodiment of the display panel of the present application.

[0024] Figure 7 is a schematic diagram of a fourth embodiment of a display panel of the present application;

[0025] Figure 8 A light path diagram of light irradiating the anti-peeping area in the fourth embodiment of the display panel of the present application;

[0026] Fig. 9 is a schematic diagram of a fifth embodiment of a display panel of the present application;

[0027] Fig.10 A light path diagram of light irradiating the display area in the fifth embodiment of the display panel of the present application;

[0028] Fig.11 It is a schematic diagram of an embodiment of a display device of the present application.

[0029] Among them, 10, display device; 100, display panel; 200, shell; 110, display area; 120, anti-peeping area; 130, base substrate; 131, first anode; 132, pixel definition layer; 133, first light-emitting layer; 140, cathode layer; 150, anti-peeping sub-pixel; 151, second anode; 152, second light-emitting layer; 160, shading layer; 170, reflective layer; 180, encapsulation layer. DETAILED DESCRIPTION

[0030] The present application is described in detail below with reference to the accompanying drawings and optional embodiments. It should be noted that, under the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Figure 1 is a schematic diagram of a first embodiment of a display panel of the present application, Figure 2 1 is a light path diagram of light in the anti-peeping area in the first embodiment of the display panel of the present application; the present application discloses a display panel 100, which is divided into a display area 110 and an anti-peeping area 120, the display area 110 and the anti-peeping area 120 are arranged adjacent to each other, the display panel 100 includes a base substrate 130, a plurality of first anodes 131 are arranged on the base substrate 130 at intervals, and the plurality of first anodes 131 are located in the display area 110; a pixel definition layer 132 is arranged between two adjacent first anodes 131, a first light-emitting layer 133 is arranged on the first anode 131, a cathode layer 140 is arranged on the first light-emitting layer 133 and the pixel definition layer 132; an encapsulation layer 180 is arranged on the cathode layer 140; the anti-peeping area An anti-peeping sub-pixel 150 is arranged in the domain 120. The anti-peeping sub-pixel 150 is arranged on the pixel definition layer 132 in the anti-peeping area 120. The anti-peeping sub-pixel 150 includes a second anode 151 and a second light-emitting layer 152. The second light-emitting layer 152 is arranged on the second anode 151, and the cathode layer 140 covers the second light-emitting layer 152; the encapsulation layer 180 is provided with a shading layer 160 and a reflecting layer 170 at the position corresponding to the anti-peeping sub-pixel 150, and the shading layer 160 and the reflecting layer 170 are both located above the anti-peeping sub-pixel 150, and the reflecting layer 170 is located between the shading layer 160 and the anti-peeping sub-pixel 150; the second anode 151 reflects part of the light transmitted from the reflecting layer 170 to enter the anti-peeping area 120.

[0032] The present application sets a reflective layer 170 in the anti-peeping area 120 of the display panel 100, corresponding to the position of the light shielding layer 160 above the anti-peeping sub-pixel 150, so that the reflective layer 170 is below the light shielding layer 160 and corresponds to the second anode 151 in the anti-peeping sub-pixel 150; when the anti-peeping sub-pixel 150 is turned on, the light emitted by the second light-emitting layer 152 in the anti-peeping sub-pixel 150 is emitted to the reflective layer 170, and the reflective layer 170 reflects the light to the anti-peeping large viewing angle range for anti-peeping brightness compensation. At the same time, the light emitted downward by the second light-emitting layer 152 is reflected by the second anode 151 to the anti-peeping large viewing angle range for anti-peeping brightness compensation; in this process, the reflective layer 170 Part of the light from the reflective layer 170 is emitted to the second anode 151, and the second anode 151 adjusts the direction of the light and then emits it to the wide viewing angle range and the reflective layer 170; at the same time, part of the light from the second anode 151 is also emitted to the reflective layer 170, and the reflective layer 170 adjusts the direction of the light and then emits it to the wide viewing angle range and the second anode 151. In this way, through the cooperation between the reflective layer 170 and the second anode 151, the light can adjust the optical path through repeated reflections, so that more light can enter the anti-peeping area 120, and the brightness of the anti-peeping area 120 is compensated, thereby improving the anti-peeping effect of the display panel 100 and improving the light utilization rate.

[0033] It should be noted that Figure 2 In the figure, A represents the light emitted upward from the first light-emitting layer, B represents the light emitted downward from the first light-emitting layer, and since the light emitted from the second light-emitting layer has the same principle as the light emitted from the first light-emitting layer, in order to avoid mixing the light paths and affecting the understanding, the light emitted from the second light-emitting layer is not shown; C represents the light reflected between the reflective layer and the second anode; C1 represents the light emitted from the second anode to the reflective layer and then reflected by the reflective layer to the anti-peeping area; C2 represents the light directly reflected from the second anode to the anti-peeping area.

[0034] Based on the above, the present application improves the brightness of the anti-peeping area 120 by using the reflection layer 170 and the second anode 151 to cooperate with each other. It is worth noting that, in fact, the first anode 131 in the present application will also reflect and adjust the light, that is, the present application adopts the reflection layer 170, the first anode 131, and the second anode 151 to cooperate with each other to improve the display brightness uniformity of the display panel 100 and improve the anti-peeping brightness in the anti-peeping mode. The specific principle is as follows:

[0035] The first anode 131, the second anode 151 and the reflective layer 170 in the present application are all polygonal structures; when the display panel 100 is in normal display, the first light-emitting layer 133 located in the display area 110 directly emits a part of the light to the display area 110, and the other part of the light at a normal viewing angle is reflected to the display area 110 through the first anode 131; in the traditional structure of the first anode 131, the oblique-view light irradiated to the first anode 131 cannot perform brightness compensation for the edge of the pixel, while the present application sets the structure of the first anode 131 to a polygonal structure, for example, a triangular structure. When the oblique-view light reaches the first anode 131, the light will be reflected by the side of the first anode 131. The first anode 131 can change the direction of part of the incident light at an oblique viewing angle and irradiate it toward the anti-peeping area 120, and specifically compensate for the edge brightness of the anti-peeping sub-pixel 150, thereby improving the brightness uniformity of the display area 110.

[0036] At the same time, in the traditional structure, part of the light reflected by the first anode 131 will be absorbed by the shading layer 160, reducing the light utilization rate. In the present application, the first anode 131 with a triangular structure design can compensate for part of the lost light to a large anti-peeping viewing angle, thereby improving the light utilization rate and anti-peeping brightness.

[0037] That is, the present application improves the light utilization rate of the anti-peeping sub-pixel 150 by cooperating with the reflective layer 170 and the second anode 151, and at the same time, the first anode 131 reflects the oblique-angle light for compensation, thereby further improving the light utilization rate of the anti-peeping sub-pixel 150. At the same time, the first anode 131 of the display area 110 can compensate the brightness of the light emitted downward by the first light-emitting layer 133 to the edge position of the pixel, thereby improving the brightness uniformity of the display area 110, and reusing the light absorbed by the light-shielding layer 160 to further improve the brightness in the anti-peeping mode; this method of improving the brightness uniformity of the panel display and compensating the anti-peeping brightness in the anti-peeping mode by cooperating with the reflective layer 170 structure and the anode layer structure can further improve the display effect of the display panel 100, product competitiveness and reach or exceed customer satisfaction at a low cost.

[0038] Specifically, at least one of the second anode 151 and the reflective layer 170 is a triangular structure or a trapezoidal structure. For example, when the reflective layer 170 and the second anode 151 are both triangular structures, when the anti-peeping sub-pixel 150 is turned on, the light emitted by the second light-emitting layer 152 in the anti-peeping sub-pixel 150 is irradiated onto the two side surfaces of the reflective layer 170, and the two inclined side surfaces of the reflective layer 170 reflect the light to the anti-peeping area 120, thereby compensating the brightness of the anti-peeping area 120; at the same time, the light emitted downward by the second light-emitting layer 152 is reflected into the anti-peeping area 120 through the two inclined side surfaces of the second anode 151, thereby compensating the brightness in the anti-peeping area 120, that is, the light reflected by the reflective layer 170 and the light reflected by the second anode 151 work together to further enhance the brightness of the anti-peeping area 120, thereby enhancing the anti-peeping effect.

[0039] In this process, since the two oblique sides of the reflective layer 170 are arranged corresponding to the two oblique surfaces of the second anode 151, a part of the light reflected by the two oblique surfaces of the reflective layer 170 will be irradiated onto the two oblique surfaces of the second anode 151, and the two oblique surfaces of the second anode 151 will adjust the direction of the light and emit it to a wide viewing angle range; at the same time, the two oblique surfaces of the second anode 151 will also emit part of the light to the reflective layer 170, and the light is continuously reflected between the reflective layer 170 and the second anode 151, thereby improving the light utilization rate, increasing the brightness of the anti-peeping area 120, and improving the anti-peeping effect.

[0040] Furthermore, the angle α between one side of the reflective layer 170 and the light shielding layer 160 in the present application satisfies the relationship of 30°<α<75°.

[0041] When the angle α between the side of the reflective layer 170 and the light shielding layer 160 is larger and exceeds 75°, the degree of inclination of the reflective layer 170 toward the anti-peeping area 120 will be smaller, and the smaller the inclination of the reflective layer 170 toward the anti-peeping area 120, when the light irradiates the side of the reflective layer 170, the light reflected by the reflective layer 170 will be further deviated in the direction of the large viewing angle, and it is difficult to enter the anti-peeping area 120 for brightness compensation; when the angle α between the side of the reflective layer 170 and the light shielding layer 160 is close to 90°, the light irradiated on the reflective layer 170 will be emitted in the form of stray light, which will affect the display effect; and when the angle α between the side of the reflective layer 170 and the light shielding layer 160 is smaller and less than 30°, when the light irradiates the inclined surface of the reflective layer 170, the light will exceed the anti-peeping area 120 with a large viewing angle, resulting in an unsatisfactory brightness compensation effect on the anti-peeping area 120.

[0042] Therefore, the present application sets the angle range of the angle α between the side of the reflective layer 170 and the shading layer 160 to be between 30° and 75°, so that when the light is irradiated to the reflective layer 170, the brightness of the anti-peeping area 120 is compensated by the reflective layer 170 while the display effect is not affected.

[0043] Since the second anode 151 is used in the present application to reflect the light reflected by the reflective layer 170 and to reflect the light irradiated by the second light-emitting layer 152 into the anti-peeping area 120, its main purpose is to compensate for the light of the narrow viewing angle of the anti-peeping area 120 and improve the brightness from the narrow viewing angle of the anti-peeping area 120; therefore, in order to enable the second anode 151 to better reflect the light and achieve the brightness compensation of the narrow viewing angle of the anti-peeping area 120, the present application designs the second anode 151 as follows:

[0044] The angle β between one side of the second anode 151 and the pixel definition layer 132 in the privacy protection area 120 satisfies the relationship 0°<β<60°.

[0045] When the angle β between one side of the second anode 151 and the pixel definition layer 132 is greater than 60°, the light reflected from the reflective layer 170 to the second anode 151, or the light irradiated downward from the second light-emitting layer 152 to the second anode 151, will often reflect a light within a large viewing angle range of the anti-peeping area 120 after being reflected by the second anode 151. Moreover, when the angle β between one side of the second anode 151 and the pixel definition layer 132 becomes larger and larger, when the light reflected by the reflective layer 170 irradiates the second anode 151, the second anode 151 is more likely to reflect the light downward rather than entering the anti-peeping area 120, which will fail to achieve the effect of improving the anti-peeping effect and may also cause light interference, affecting the display effect.

[0046] Therefore, the present application limits the angle range of the angle β between one side of the second anode 151 and the pixel definition layer 132 in the anti-peeping area 120 to between 0° and 60°, so that the second anode 151 can better compensate for the light of the narrow viewing angle of the anti-peeping area 120 while not affecting the normal display effect; this is conducive to the present application using the light reflected by the reflective layer 170 to compensate for the light of the large viewing angle of the anti-peeping area 120, and using the light reflected by the second anode 151 to compensate for the light of the narrow viewing angle of the anti-peeping area 120. The reflective layer 170 and the second anode 151 cooperate in processing the light to achieve compensation for the light of the entire anti-peeping area 120, thereby improving the brightness of the anti-peeping area 120 and improving the anti-peeping effect.

[0047] Figure 3 is a schematic diagram of a second embodiment of a display panel of the present application, Figure 4This is a light path diagram of the light irradiating the anti-peeping area in the second embodiment of the display panel of the present application; Figure 3 and Figure 4 As shown, Figure 3 The illustrated embodiment is based on Figure 1 In the improvement, the reflective layer 170 is a right-angled trapezoidal structure, the second anode 151 is a right-angled triangle structure, the inclined surface of the reflective layer 170 faces the display area 110, and the inclined surface of the second anode 151 faces the anti-peeping area 120.

[0048] This embodiment and Figure 1 What is different from the illustrated embodiment is that, in this embodiment, the reflective layer 170 is a right-angled trapezoidal structure, and the second anode 151 is a right-angled triangle structure, and the long inclined surface of the reflective layer 170 with the right-angled trapezoidal structure is directed toward the display area 110, so that the light reflected by the reflective layer 170 through the long inclined surface can be irradiated into the display area 110, thereby compensating for the brightness of the display area 110; and the long inclined surface of the second anode 151 with the right-angled triangle structure is directed toward the anti-peeping area 120, so that when the light is irradiated on the long inclined surface of the second anode 151, the second anode 151 can reflect most of the light to the anti-peeping area 120, thereby compensating for the brightness of the anti-peeping area 120.

[0049] It should be noted that Figure 4 A represents the light emitted by the second generating layer, irradiating the second anode, and reflected by the second anode to the inclined surface of the reflecting layer; B represents the light reflected between the reflecting layer and the second anode; and C represents the light directly reflected from the inclined surface of the second anode.

[0050] The specific principle is as follows: when the display panel 100 is in the anti-peeping mode, part of the light from the second light-emitting layer 152 in the anti-peeping sub-pixel 150 is irradiated upward to the reflective layer 170. Since the reflective layer 170 is a right-angled trapezoidal structure, part of the light irradiated to the reflective layer 170 will be irradiated on the upper bottom position of the reflective layer 170, and part of the light will be irradiated on the inclined surface of the reflective layer 170. The light irradiated on the upper bottom position of the reflective layer 170 will be reflected back in the direction of the second anode 151. The light is continuously reflected between the second anode 151 and the reflective layer 170 to enter the anti-peeping area 120, and the brightness of the anti-peeping area 120 is compensated, thereby improving the anti-peeping effect; and the light irradiated on the inclined surface of the reflective layer 170 will be reflected toward the display area 110, thereby increasing the brightness of the display area 110 of the display panel 100 in the anti-peeping mode.

[0051] At the same time, a portion of the light from the second light-emitting layer 152 will irradiate downward onto the second anode 151. Since the second anode 151 is a right triangle and the inclined surface of the second anode 151 faces the anti-peeping area 120, the light will mainly irradiate the inclined surface of the second anode 151. In this way, the light irradiated on the second anode 151 will be reflected by the second anode 151 toward the anti-peeping area 120, and then the brightness of the anti-peeping area 120 will be compensated, thereby further improving the anti-peeping effect.

[0052] Figure 5 is a schematic diagram of a third embodiment of a display panel of the present application, Figure 6 This is a light path diagram of the light irradiating the display area in the third embodiment of the display panel of the present application, such as Figure 5 and Figure 6 As shown, Figure 5 The illustrated embodiment is based on Figure 3 In the improvement, the first anode 131 is a right-angled triangle structure, and the right-angled side of the first anode 131 and the right-angled side of the second anode 151 are on the same side or different sides.

[0053] The present embodiment is different from the previous embodiment in that the structure of the first anode 131 is also improved in the present embodiment. The first anode 131 of the present embodiment is a right-angled triangle structure, and the inclined surface of the first anode 131 of the right-angled triangle structure can face the privacy protection area 120 or the display area 110.

[0054] When the right-angled side of the first anode 131 and the right-angled side of the second anode 151 are on different sides, the inclined surface of the first anode 131 faces the display area 110. When light shines on the first anode 131, the first anode 131 reflects most of the light back to the display area 110, compensating for the brightness of the display area 110 and improving the display effect of the display area 110.

[0055] When the right-angled side of the first anode 131 is on the same side as the right-angled side of the second anode 151, the inclined surface of the first anode 131 faces the anti-peeping area 120. When light is irradiated to the first anode 131, the first anode 131 reflects the light at a straight angle back to the display area 110 to compensate for the brightness of the display area 110, and reflects the light at an oblique angle toward the anti-peeping area 120 to compensate for the brightness of the anti-peeping area 120, thereby improving the brightness of the anti-peeping area 120 and improving both the anti-peeping effect and the normal display effect.

[0056] It should be noted that Figure 6In the figure, A represents the light emitted from the first light-emitting layer upward into the display area; B represents the light emitted from the first light-emitting layer downward to the first anode, and the light reflected by the first anode to the inclined surface of the reflective layer and then emitted; C represents the light reflected between the reflective layer and the second anode; C1 represents the light directly emitted from the second anode into the anti-peeping area.

[0057] Figure 7 is a schematic diagram of a fourth embodiment of a display panel of the present application, Figure 8 FIG. 1 is a light path diagram of the fourth embodiment of the display panel of the present application in which light is irradiated in the anti-peeping area. Figure 7 and Figure 8 As shown, Figure 7 The illustrated embodiment is based on Figure 5 In the improvement, the second anode 151 is an isosceles triangle structure, the reflective layer 170 is an isosceles trapezoid structure, and the vertex angle of the second anode 151 corresponds to the middle of the upper bottom of the reflective layer 170.

[0058] It should be noted that Figure 8 In the figure, A represents the light reflected between the reflective layer and the second anode, B represents the light emitted from the second light-emitting layer to the reflective layer, and C represents the light emitted from the second light-emitting layer downward to the second anode and the light directly reflected from the second anode.

[0059] The present embodiment is different from the previous embodiment in that, in the present embodiment, the second anode 151 is an isosceles triangle structure, the reflective layer 170 is an isosceles trapezoid structure, and the two side surfaces of the second anode 151 correspond to the two side surfaces of the reflective layer 170, so that the light can be continuously reflected on the inclined surface with the same inclination angle between the second anode 151 and the reflective layer 170, and a part of the light is relatively evenly reflected toward the display area 110 through the reflective layer 170, and the other part of the light is reflected toward the anti-peeping area 120, which is beneficial to improving the uniformity of the brightness of the display area 110 and the anti-peeping area 120 when the display panel 100 is in the anti-peeping mode, thereby further improving the display quality of the display panel 100.

[0060] Fig. 9 is a schematic diagram of a fifth embodiment of a display panel of the present application, Fig.10 FIG. 5 is a light path diagram of the fifth embodiment of the display panel of the present application in which light is irradiated in the display area; Fig. 9 and Fig.10 As shown, Fig. 9 The illustrated embodiment is based on Figure 7 In the improvement, the first anode 131 is an isosceles triangle structure, and the side of the first anode 131 corresponds to the side of the reflective layer 170.

[0061] This embodiment is different from the previous embodiment in that this embodiment improves the structure of the first anode 131 and the reflective layer 170. The first anode 131 is an isosceles triangle structure, and the side of the first anode 131 directly involved in the reflection of light corresponds to the side of the reflective layer 170 directly involved in the reflection of light, and the reflective surface of the first anode 131 and the reflective surface of the reflective layer 170 have the same inclination angle.

[0062] It should be noted that Fig.10 In the figure, A is the light emitted by the first light-emitting layer and irradiated upward toward the display area; B is the light emitted by the first light-emitting layer and irradiated downward toward the first anode, and is reflected by the first anode to the reflective layer and finally irradiated toward the display area.

[0063] When the light emitted by the first light-emitting layer 133 of the display area 110 irradiates downwardly to the first anode 131, the first anode 131 returns the light at a straight angle to the display area 110, and reflects the light at an oblique angle to the reflective layer 170. After receiving the light, the reflective layer 170 can reflect the light toward the display area 110, thereby further improving the light utilization rate of the display area 110, improving the brightness of the display area 110, and further improving the display effect of the display panel 100.

[0064] Fig.11 is a schematic diagram of an embodiment of a display device of the present application, such as Fig.11 As shown, the present application discloses a display device 10 , including a housing 200 . The display device 10 also includes the above-mentioned display panel 100 , and the display panel 100 is disposed in the housing 200 .

[0065] The housing 200 is used to protect the display panel 100 from being damaged by external forces during transportation, and can also prevent external moisture from invading the display panel 100 and corroding electrical components inside the display panel 100, effectively extending the service life of the display device 10.

[0066] It should be noted that the display device 10 of the present application is mainly aimed at a display device 10 with a built-in anti-peeping function display panel 100, which can be a mobile phone, a computer, a tablet, etc. The present application does not impose specific restrictions on the device type of the display device 10.

[0067] In the anti-peeping display device 10 , the anti-peeping area 120 of the display panel 100 in the anti-peeping mode often has low brightness, resulting in an unsatisfactory anti-peeping effect, which affects the user experience.

[0068] Based on the above problems, the present application improves the display panel 100 in the display device 10. The present application sets a reflective layer 170 in the anti-peeping area 120 of the display panel 100, corresponding to the position of the light-shielding layer 160 above the anti-peeping sub-pixel 150, so that the reflective layer 170 is below the light-shielding layer 160 and corresponds to the second anode 151 in the anti-peeping sub-pixel 150; when the anti-peeping sub-pixel 150 is turned on, the light emitted by the second light-emitting layer 152 in the anti-peeping sub-pixel 150 is emitted to the reflective layer 170, and the reflective layer 170 reflects the light to the anti-peeping large viewing angle range for anti-peeping brightness compensation. At the same time, the light emitted downward by the second light-emitting layer 152 is reflected by the second anode 151 to the anti-peeping large viewing angle range for anti-peeping brightness compensation In this process, part of the light from the reflective layer 170 will be emitted to the second anode 151, and the second anode 151 will adjust the direction of the light and then emit it to the wide viewing angle range and the reflective layer 170; at the same time, part of the light from the second anode 151 will be emitted to the reflective layer 170, and the reflective layer 170 will adjust the direction of the light and then emit it to the wide viewing angle range and the second anode 151. In this way, through the cooperation between the reflective layer 170 and the second anode 151, the light path can be adjusted through repeated reflections, so that more light can enter the anti-peeping area 120, and the brightness of the anti-peeping area 120 is compensated, thereby improving the anti-peeping effect of the display panel 100 and improving the light utilization rate, thereby further improving the quality of the display device 10.

[0069] It should be noted that the inventive concept of the present application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effects will be enhanced.

[0070] The above content is a further detailed description of the present application in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A display panel, divided into a display area and an anti-peeping area, wherein the display area is arranged adjacent to the anti-peeping area, the display panel comprises a base substrate, a plurality of first anodes are arranged on the base substrate at intervals, and the plurality of first anodes are located in the display area; a pixel definition layer is arranged between two adjacent first anodes, a first light-emitting layer is arranged on the first anodes, a cathode layer is arranged on the first light-emitting layer and the pixel definition layer; and an encapsulation layer is arranged on the cathode layer; It is characterized in that An anti-peeping sub-pixel is arranged in the anti-peeping area, the anti-peeping sub-pixel is arranged on the pixel definition layer in the anti-peeping area, the anti-peeping sub-pixel includes a second anode and a second light-emitting layer, the second light-emitting layer is arranged on the second anode, and the cathode layer covers the second light-emitting layer; The encapsulation layer is provided with a light shielding layer and a reflective layer at a position corresponding to the anti-peeping sub-pixel, the light shielding layer and the reflective layer are both located above the anti-peeping sub-pixel, and the reflective layer is located between the light shielding layer and the anti-peeping sub-pixel; The second anode reflects part of the light transmitted from the reflective layer into the anti-peeping area; The first anode, the second anode and the reflective layer are all polygonal structures.

2. The display panel according to claim 1, wherein: The angle α between one side of the reflective layer and the light shielding layer satisfies the relationship of 30°<α<75°.

3. The display panel according to claim 2, wherein: An angle β between a side edge of the second anode and the pixel definition layer in the anti-peeping area satisfies the relationship 0°<β<60°.

4. The display panel according to claim 3, wherein: At least one of the second anode and the reflective layer has a triangular structure or a trapezoidal structure.

5. The display panel according to claim 4, wherein: The reflective layer is a right-angled trapezoidal structure, the second anode is a right-angled triangle structure, the inclined surface of the reflective layer faces the display area, and the inclined surface of the second anode faces the anti-peeping area.

6. The display panel according to claim 5, wherein: The first anode is a right-angled triangle structure, and the right-angled side of the first anode and the right-angled side of the second anode are on the same side or on different sides.

7. The display panel according to claim 4, wherein: The second anode is an isosceles triangle structure, the reflective layer is an isosceles trapezoid structure, and the vertex angle of the second anode corresponds to the middle of the upper base of the reflective layer.

8. The display panel according to claim 7, wherein: The first anode is an isosceles triangle structure, and the side of the first anode corresponds to the side of the reflective layer.

9. A display device, comprising a housing, characterized in that: The display device further comprises a display panel as claimed in any one of claims 1 to 8, wherein the display panel is disposed in the housing.

Citation Information

Patent Citations

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