Display panel and display device

Abstract

The present invention discloses a display panel and a display device, and relates to the field of display technology. The display panel comprises an array substrate, a plurality of light-emitting units, a plurality of anti-peeping units and a shading unit. The plurality of light-emitting units are arranged on the surface of the array substrate at intervals and are connected to each other, and an accommodation space is defined between two adjacent light-emitting units; the plurality of anti-peeping units are correspondingly arranged in the accommodation space, and the anti-peeping units comprise a display device, a heating electrode and a heat insulating layer, the heating electrode is electrically connected to the array substrate, and the heat insulating layer is arranged around the outer sides of the display device and the heating electrode; the shading unit is arranged corresponding to the anti-peeping unit; the heating electrode can heat the display device under the action of the circuit of the array substrate, so that the display device displays different colors, so that the display panel is in a sharing mode or an anti-peeping mode; the technical solution provided by the present invention can realize the switching between the anti-peeping mode and the sharing mode, improve the light-emitting efficiency of the display panel, and effectively save power consumption.

Description

Technical Field

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

[0002] In the field of display technology, organic light-emitting diode displays (OLED) are more widely used in mobile phones, notebooks, cars and other electronic devices due to their advantages such as active light emission, low power consumption, fast response speed and wide viewing angle. However, OLED has certain limitations in some aspects, such as relatively high power consumption and reflected ambient light affecting the display effect. Especially in the case of strong ambient light, the reflected light of OLED will interfere with the luminous effect of the screen, thereby affecting the display brightness. Therefore, if the ambient light incident on the display panel can be used to realize some display functions, such as anti-peeping function, it is a beneficial effect.

[0003] Currently, the anti-peeping function is achieved by adding an anti-peeping film on the display screen, which will reduce the display brightness and affect the display effect; the other is to achieve it through anti-peeping pixels, but this method will increase power consumption and cost. Summary of the invention

[0004] The main purpose of the present invention is to provide a display panel and a display device, aiming to achieve an anti-peeping function without affecting the display brightness and saving power consumption.

[0005] To achieve the above object, the present invention provides a display panel, the display panel comprising:

[0006] An array substrate;

[0007] A plurality of light emitting units are arranged at intervals on a surface of the array substrate and are connected to each other, and an accommodation space is defined between two adjacent light emitting units;

[0008] A plurality of anti-peeping units are correspondingly arranged in the accommodating space, the anti-peeping units include a display device, a heating electrode and a heat insulating layer, the heating electrode is arranged on the surface of the display device facing the array substrate and is electrically connected to the array substrate, and the heat insulating layer is arranged around the outer sides of the display device and the heating electrode;

[0009] A shading unit, the shading unit is arranged corresponding to the anti-peeping unit;

[0010] The heating electrode can heat the display device under the action of the circuit of the array substrate, so that the display device displays different colors, and the display panel is in a sharing mode or an anti-peeping mode.

[0011] In one embodiment, the display device is a polymer-stabilized cholesteric liquid crystal display device or a thermochromic photonic crystal display device.

[0012] In one embodiment, the display device is a polymer-stabilized cholesteric liquid crystal display device. When the heating temperature of the heating electrode is a first preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays in black, and the display panel is in a sharing mode; when the heating temperature of the heating electrode is a second preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays in color, and the display panel is in a single-sided anti-peeping mode or a double-sided anti-peeping mode.

[0013] In one embodiment, the polymer-stabilized cholesteric liquid crystal display device includes a light-transmitting packaging shell and a polymer-stabilized cholesteric liquid crystal arranged in the light-transmitting packaging shell; the heating electrode is arranged on the surface of the light-transmitting packaging shell facing the array substrate, and the heat insulation layer ring is arranged on the outside of the light-transmitting packaging shell.

[0014] In one embodiment, the shape of the heat insulation layer is the same as the shape of the light-transmitting packaging shell; and / or the cross-sectional outer contour of the light-transmitting packaging shell is in the shape of a triangle, a semicircle, or a trapezoid.

[0015] In one embodiment, the anti-peeping unit also includes an isolation layer extending in a direction perpendicular to the array substrate, the isolation layer separates the polymer-stabilized cholesteric liquid crystal display device into two parts and is exposed on the surface of the polymer-stabilized cholesteric liquid crystal display device facing the array substrate; the heating electrode includes a first heating electrode and a second heating electrode, the first heating electrode and the second heating electrode are respectively located on both sides of the exposed portion of the isolation layer, so that the two parts of the polymer-stabilized cholesteric liquid crystal display device display different colors.

[0016] In one embodiment, the isolation layer is made of a material that is light-proof, heat-insulating, and does not react with the polymer-stabilized cholesteric liquid crystal.

[0017] In one embodiment, the anti-peeping unit also includes a pixel definition layer, which is arranged in the accommodating space and located on the outside of the thermal insulation layer; and / or the array substrate includes a base substrate and a driving circuit layer arranged on a surface of the base substrate, the light-emitting unit is located on the surface of the driving circuit layer facing away from the base substrate, and the heating electrode is electrically connected to the driving circuit layer.

[0018] In one embodiment, the display panel further includes an encapsulation layer, and the encapsulation layer is disposed between the light emitting unit and the light shielding unit.

[0019] The present invention further provides a display device, which includes the display panel as described above.

[0020] The technical solution of the present invention is that the display panel includes an array substrate, a plurality of light-emitting units, a plurality of anti-peeping units and a shading unit. The plurality of light-emitting units are arranged at intervals on a surface of the array substrate and are connected to each other, and an accommodation space is defined between two adjacent light-emitting units; the plurality of anti-peeping units are arranged in the accommodation space correspondingly, and the anti-peeping unit includes a display device, a heating electrode and a heat insulation layer, the heating electrode is arranged on the surface of the display device facing the array substrate and is electrically connected to the array substrate, and the heat insulation layer is arranged around the outside of the display device and the heating electrode; the shading unit is arranged corresponding to the anti-peeping unit; the heating electrode can heat the display device under the action of the circuit of the array substrate, so that the display device displays different colors, so that the display panel is in a sharing mode or an anti-peeping mode. The present invention utilizes that the display device can display different colors under different heating temperatures of the heating electrode, and can reflect different colors of light from the irradiated ambient light, so as to realize the switching between the anti-peeping mode and the sharing mode of the display panel, and improve the luminous efficiency of the display panel, thereby improving the display effect of the display panel; at the same time, there is no need to increase the anti-peeping pixels, which can effectively save power consumption. The display panel provided by the present invention has a more comprehensive anti-peeping function, can meet the different needs of users, improves the use flexibility of the display panel, and enhances the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of an embodiment of a display panel provided by the present invention in an anti-peeping mode;

[0023] Figure 2 A schematic diagram of the structure of an embodiment of a display panel provided by the present invention in a sharing mode;

[0024] Figure 3 A schematic diagram of the structure of an embodiment of a display panel provided by the present invention in a one-side anti-peeping mode;

[0025] Figure 4 A schematic diagram of the structure of an embodiment of a display panel provided by the present invention in the other side anti-peeping mode;

[0026] Figure 5 A schematic diagram of the structure of an embodiment of a display panel provided by the present invention in a double-sided anti-peeping mode;

[0027] Figure 6A schematic diagram of the structure of another embodiment of the display panel provided by the present invention in an anti-peeping mode;

[0028] Figure 7 A schematic structural diagram of another embodiment of a display panel provided by the present invention in a sharing mode;

[0029] Figure 8 A schematic diagram of the structure of another embodiment of the display panel provided by the present invention in an anti-peeping mode;

[0030] Fig. 9 A schematic structural diagram of another embodiment of a display panel provided by the present invention in a sharing mode;

[0031] Fig.10 The present invention is a schematic structural diagram of another embodiment of a display panel in a double-side anti-peeping mode.

[0032] Description of Figure Numbers:

[0033] 100. Display panel; 1. Array substrate; 11. Base substrate; 12. Driving circuit layer; 2. Light-emitting unit; 21. Anode layer; 22. Light-emitting layer; 23. Cathode layer; 3. Anti-peeping unit; 31. Display device; 32. Heating electrode; 321. First heating electrode; 322. Second heating electrode; 33. Heat insulation layer; 34. Isolation layer; 35. Pixel definition layer; 5. Encapsulation layer; 51. Inorganic encapsulation layer; 52. Organic encapsulation layer; 6. Shading unit.

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] 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.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The present invention provides a display panel 100, namely an OLED display panel 100, which is intended to achieve an anti-peeping function without affecting display brightness and saving power consumption.

[0039] It should be noted that Figures 1 to 10 The lines with arrows in the middle represent light, and the light in the figure includes the ambient light irradiated to the anti-peeping unit 3 , the light reflected by the anti-peeping unit 3 , and the light emitted by the light-emitting unit 2 .

[0040] See also Figure 1 and Figure 2 In one embodiment of the present invention, the display panel 100 includes an array substrate 1, a plurality of light-emitting units 2, a plurality of anti-peeping units 3 and a shading unit 6. The plurality of light-emitting units 2 are arranged on a surface of the array substrate 1 at intervals and are connected to each other, and an accommodation space is defined between two adjacent light-emitting units 2; the plurality of anti-peeping units 3 are correspondingly arranged in the accommodation space, and the anti-peeping unit 3 includes a display device 31, a heating electrode 32 and a heat insulation layer 33. The heating electrode 32 is arranged on the surface of the display device 31 facing the array substrate 1 and is electrically connected to the array substrate 1, and the heat insulation layer 33 is arranged around the outer side of the display device 31 and the heating electrode 32; the shading unit 6 is arranged corresponding to the anti-peeping unit 3; the heating electrode 32 can heat the display device 31 under the action of the circuit of the array substrate 1, so that the display device 31 displays different colors, so that the display panel 100 is in a sharing mode or an anti-peeping mode.

[0041] Specifically, the array substrate 1 may be a metal thin film transistor array substrate, which has a metal thin film transistor circuit pattern inside. The metal thin film transistor circuit pattern can generate a positive electric field or a negative electric field under the control of a driving IC. The shading unit 6 is a part of the color filter layer. The color filter layer is arranged on the side of the light emitting unit 2 facing away from the array substrate 1. The color filter layer includes staggered RGB filters and shading units 6, wherein the color filter layer is conventionally arranged, and the specific structural arrangement can refer to the prior art. Since the color of the light allowed to pass through by the RGB filter is consistent with the color of the light emitted by the light emitting unit 2, when the external ambient light enters the interior of the display panel 100, part of it is absorbed by the shading unit 6, and the remaining part is filtered out by the RGB filter, and only a small part of the light of a single color can pass through. The light-emitting unit 2 corresponds to the RGB filter setting and is used for emitting light at a normal viewing angle. An anti-peeping unit 3 is set in the accommodating space defined between two adjacent light-emitting units 2. The accommodating space can be optionally set in a trapezoidal shape and corresponds to the shading unit 6 setting, that is, the anti-peeping unit 3 corresponds to the shading unit 6 setting. In this way, the non-luminous area can be well utilized to achieve an anti-peeping effect, and the anti-peeping effect is relatively high. The display device 31 is arranged in contact with the heating electrode 32. The heating electrode 32 can be a transparent heating electrode to avoid color interfering with light. The heating electrode 32 is electrically connected to the array substrate 1 through a wire. Under the action of the circuit of the array substrate 1, the heating electrode 32 can be energized to heat the display device 31. The heating temperature of the display device 31 by the heating electrode 32 can be adjusted by controlling the circuit voltage of the array substrate 1. At different heating temperatures, the display device 31 will display different colors, and then reflect light of different colors to the irradiated external ambient light. When the reflected light is colored and the color is different from the color of the light emitted by the corresponding light emitting unit 2, it will interfere with the wide viewing angle light of the front display pixel, so that the display panel 100 cannot display the picture normally at a wide viewing angle. At this time, the display panel 100 is in the anti-peeping mode. When the display device 31 is displayed as black as a whole, at this time, no colored light will be reflected, and the wide viewing angle light of the front display pixel will not be interfered, thereby realizing the sharing mode of the display panel 100. When the reflected light is colored and the color is the same as the color of the light emitted by the corresponding light emitting unit 2, the luminous efficiency of the corresponding light will be improved. The heat insulating layer 33 is used to insulate the display device 31 and the heating electrode 32 to effectively prevent the external temperature from affecting the display device 31 and thus affecting the anti-peeping effect of the display panel 100 .

[0042] The present invention utilizes the display device 31 to display different colors at different heating temperatures of the heating electrode 32, and can reflect the irradiated ambient light into light of different colors, so as to realize the switching between the anti-peeping mode and the sharing mode of the display panel 100, and improve the luminous efficiency of the display panel 100, thereby improving the display effect of the display panel 100; at the same time, there is no need to increase the anti-peeping pixels, which can effectively save power consumption. The display panel 100 provided by the present invention has a more comprehensive anti-peeping function, which can meet the different needs of users, improve the flexibility of the display panel 100, and improve the user experience.

[0043] In an optional embodiment of the present invention, the display device 31 is a polymer-stabilized cholesteric liquid crystal display device or a thermochromic photonic crystal display device.

[0044] The polymer-stabilized cholesteric liquid crystal display device has a high temperature-sensitive structural color, a photosensitive pigment color, and a step-by-step adjustable fluorescent color. By adjusting different heating temperatures, the polymer-stabilized cholesteric liquid crystal display device can display colors such as red, blue, green, and black, and can reflect light of corresponding colors. The polymer-stabilized cholesteric liquid crystal display device is highly sensitive to temperature and can quickly change its structural color when different temperatures are applied to the heating electrode 32, so as to realize a fast switch between the anti-peeping mode and the sharing mode of the display panel 100, and avoid the switching time between the anti-peeping mode and the sharing mode being too long due to the switching of the structural color.

[0045] Thermochromic photonic crystal display devices can also quickly change their structural colors when different temperatures are applied to the heating electrode 32, display different colors, and reflect light of different colors, and can also achieve rapid switching between the anti-peeping mode and the sharing mode of the display panel 100.

[0046] Please refer again Figures 1 to 5 In one embodiment of the present invention, the display device 31 is a polymer-stabilized cholesteric liquid crystal display device. When the heating temperature of the heating electrode 32 is a first preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays in black, and the display panel 100 is in a sharing mode; when the heating temperature of the heating electrode 32 is a second preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays in color, and the display panel 100 is in a single-sided anti-peeping mode or a double-sided anti-peeping mode.

[0047] Specifically, the first preset temperature is room temperature or 0°C. When the heating temperature of the heating electrode 32 is room temperature or not heated, the external ambient light is irradiated on the polymer-stabilized cholesteric liquid crystal display device, and the polymer-stabilized cholesteric liquid crystal display device displays black as a whole, and does not reflect light of other colors. At this time, the large viewing angle light of the front display pixel will not be disturbed, and the display panel 100 is in sharing mode. The second preset temperature is room temperature plus 3°C. When the heating temperature of the heating electrode 32 is room temperature plus 3°C, the external ambient light is irradiated on the polymer-stabilized cholesteric liquid crystal display device, and the polymer-stabilized cholesteric liquid crystal display device displays in color (such as red, green, or blue), and reflects red, green, or blue light. As an example, when the heating temperature of the heating electrode 32 is room temperature plus 1°C, the polymer-stabilized cholesteric liquid crystal display device displays red and reflects red light; when the heating temperature of the heating electrode 32 is room temperature plus 2°C, the polymer-stabilized cholesteric liquid crystal display device displays green and reflects green light; when the heating temperature of the heating electrode 32 is room temperature plus 3°C, the polymer-stabilized cholesteric liquid crystal display device displays blue and reflects blue light.

[0048] If the color of the light reflected from one side of the polymer-stabilized cholesteric liquid crystal display device is different from the color of the light emitted by the corresponding side light-emitting unit 2, the side will interfere with the wide-angle light of the front display pixel, so that the display panel 100 cannot display the picture on this side normally at a wide angle. At this time, the display panel 100 is in a one-side anti-peeping mode (that is, a single-side anti-peeping mode). If the color of the light reflected from the other side is the same as the color of the light emitted by the corresponding side light-emitting unit 2, the light on this side will be enhanced, and the luminous efficiency of the corresponding light on this side will be improved (that is, the luminous efficiency of one side will be improved). If the color of the light reflected from both sides is the same as the color of the light emitted by the corresponding side light-emitting unit 2, the light on both sides will be enhanced, and the luminous efficiency of the corresponding light on both sides will be improved (that is, the luminous efficiency of both sides will be improved). If the color of the light reflected from both sides is different from the color of the light emitted by the corresponding side light-emitting unit 2, both sides will interfere with the wide-angle light of the front display pixel, so that the pictures on both sides of the display panel 100 cannot be displayed normally at a wide angle. At this time, the display panel 100 is in a two-side anti-peeping mode (that is, a double-side anti-peeping mode).

[0049] Please refer again Figure 3In one embodiment of the present invention, the polymer-stabilized cholesteric liquid crystal display device in the left anti-peeping unit 3 displays red (i.e., R1 in the figure) and reflects red (i.e., R1 in the figure), and the colors of the light emitted by the light-emitting units 2 on the left and right sides are red (i.e., R1 in the figure) and green (i.e., G1 in the figure), respectively. The red (i.e., R1 in the figure) light reflected from the left side will enhance the red (i.e., R1 in the figure) light emitted by the left light-emitting unit 2, thereby improving the luminous efficiency of the left side, while the red (i.e., R1 in the figure) light reflected from the right side will interfere with the green (i.e., G1 in the figure) light emitted by the right light-emitting unit 2, thereby presenting a right anti-peeping mode. The polymer-stabilized cholesteric liquid crystal display device in the right anti-peeping unit 3 displays green (i.e., G1 in the figure) and reflects green (i.e., G1 in the figure), and the colors of the light emitted by the light-emitting units 2 on the left and right sides are green (i.e., G1 in the figure) and blue (i.e., B1 in the figure), respectively. The green (i.e., G1 in the figure) light reflected from the left side will enhance the green (i.e., G1 in the figure) light emitted by the light-emitting unit 2 on the left side, thereby improving the luminous efficiency on the left side, while the green (i.e., G1 in the figure) light reflected from the right side will interfere with the blue (i.e., B1 in the figure) light emitted by the light-emitting unit 2 on the right side, thereby presenting the right anti-peeping mode. That is, the display panel 100 of this embodiment presents the left side improving the luminous efficiency and the right side anti-peeping mode.

[0050] Please refer again Figure 4 In one embodiment of the present invention, the polymer-stabilized cholesteric liquid crystal display device in the left anti-peeping unit 3 displays green (i.e., G2 in the figure) and reflects green (i.e., G2 in the figure), and the colors of the light emitted by the light-emitting units 2 on the left and right sides are red (i.e., R2 in the figure) and green (i.e., G2 in the figure), respectively. The green (i.e., G2 in the figure) light reflected from the left side will interfere with the red (i.e., R2 in the figure) light emitted by the left light-emitting unit 2, presenting a left anti-peeping mode; and the green (i.e., G2 in the figure) light reflected from the right side will enhance the green (i.e., G2 in the figure) light emitted by the right light-emitting unit 2, thereby improving the luminous efficiency of the right side. The polymer-stabilized cholesteric liquid crystal display device in the right anti-peeping unit 3 displays blue (i.e., B2 in the figure) and reflects blue (i.e., B2 in the figure). The colors of the light emitted by the light-emitting units 2 on the left and right sides are green (i.e., G2 in the figure) and blue (i.e., B2 in the figure), respectively. The blue (i.e., B2 in the figure) light reflected from the left side will interfere with the green (i.e., G2 in the figure) light emitted by the light-emitting unit 2 on the left side, presenting the left anti-peeping mode; while the blue (i.e., B2 in the figure) light reflected from the right side will enhance the blue (i.e., B2 in the figure) light emitted by the light-emitting unit 2 on the right side, which will improve the luminous efficiency on the right side. That is, the display panel 100 of this embodiment presents the left anti-peeping mode, and the luminous efficiency on the right side is improved.

[0051] Please refer again Figure 5In one embodiment of the present invention, the polymer-stabilized cholesteric liquid crystal display device in the left anti-peeping unit 3 displays blue (i.e., B3 in the figure) and reflects blue (i.e., B3 in the figure), and the colors of the light emitted by the light-emitting units 2 on the left and right sides are red (i.e., R3 in the figure) and green (i.e., G3 in the figure), respectively. The blue (i.e., B3 in the figure) light reflected from the left side will interfere with the red (i.e., R3 in the figure) light emitted by the left light-emitting unit 2, presenting a left anti-peeping mode; at the same time, the blue (i.e., B3 in the figure) light reflected from the right side will interfere with the green (i.e., G3 in the figure) light emitted by the right light-emitting unit 2, presenting a right anti-peeping mode. The polymer-stabilized cholesteric liquid crystal display device in the right anti-peeping unit 3 displays red (i.e., R3 in the figure) and reflects red (i.e., R3 in the figure), and the colors of the light emitted by the light-emitting units 2 on the left and right sides are green (i.e., G3 in the figure) and blue (i.e., B3 in the figure), respectively. The red (i.e., R3 in the figure) light reflected from the left side will interfere with the green (i.e., G3 in the figure) light emitted from the left light-emitting unit 2, presenting a left anti-peeping mode; at the same time, the red (i.e., R3 in the figure) light reflected from the right side will interfere with the blue (i.e., B3 in the figure) light emitted from the left light-emitting unit 2, presenting a right anti-peeping mode. That is, the display panel 100 of this embodiment presents a double-sided anti-peeping mode.

[0052] In one embodiment of the present invention, the polymer-stabilized cholesteric liquid crystal display device includes a light-transmitting packaging shell and a polymer-stabilized cholesteric liquid crystal arranged in the light-transmitting packaging shell; the heating electrode 32 is arranged on the surface of the light-transmitting packaging shell facing the array substrate 1, and the heat insulation layer 33 is arranged around the outer side of the light-transmitting packaging shell.

[0053] In this embodiment, the transparent packaging shell is made of a transparent material to allow ambient light to pass through the transparent packaging shell and illuminate the internal polymer-stabilized cholesteric liquid crystal, so that the polymer-stabilized cholesteric liquid crystal displays different colors at different heating temperatures and reflects light of different colors.

[0054] Optionally, the cross-sectional outer contour of the light-transmitting packaging shell may be in a semicircular, triangular, trapezoidal or other reasonable shapes, which are not limited here.

[0055] Optionally, the shape of the heat insulation layer 33 is the same as that of the light-transmitting packaging shell for heat insulation, and the structure is relatively compact, which is beneficial to reducing the overall size of the display panel 100 .

[0056] like Figures 1 to 5 As shown, in one embodiment of the present invention, the outer contour of the cross section of the light-transmitting packaging shell is in the shape of a triangle, and correspondingly, the outer contour of the heat-insulating layer 33 is in the shape of a triangle.

[0057] like Figure 6 and Figure 7As shown, in another embodiment of the present invention, the outer contour of the cross section of the light-transmitting packaging shell is semicircular, and correspondingly, the outer contour of the heat-insulating layer 33 is semicircular.

[0058] It should be noted that if Figure 6 and Figure 7 The embodiment shown is similar to Figure 1 and Figure 2 The difference between the embodiments shown is that the shapes of the light-transmitting packaging shell and the heat-insulating layer 33 are different, and the other configurations are the same, that is, Figure 6 and Figure 7 The illustrated embodiment can also realize an anti-peeping mode, a single-side anti-peeping mode, a double-side anti-peeping mode, and switching between modes, and can also improve the luminous efficiency of a single side.

[0059] See also Figures 8 to 10 In one embodiment of the present invention, the anti-peeping unit 3 further includes an isolation layer 34 extending in a direction perpendicular to the array substrate 1, the isolation layer 34 separates the polymer-stabilized cholesteric liquid crystal display device into two parts, and is exposed on the surface of the polymer-stabilized cholesteric liquid crystal display device facing the array substrate 1; the heating electrode 32 includes a first heating electrode 321 and a second heating electrode 322, the first heating electrode 321 and the second heating electrode 322 are respectively located on both sides of the exposed portion of the isolation layer 34, so that the two parts of the polymer-stabilized cholesteric liquid crystal display device display different colors.

[0060] In the present embodiment, an isolation layer 34 is provided in the middle of the polymer-stabilized cholesteric liquid crystal display device for separating the polymer-stabilized cholesteric liquid crystal display device, and the heating electrode 32 adopts a first heating electrode 321 and a second heating electrode 322 which are independent of each other, so that the two parts of the polymer-stabilized cholesteric liquid crystal display device after separation are independent of each other and do not affect each other, and the two parts of the polymer-stabilized cholesteric liquid crystal display device after separation can display different colors and reflect light of different colors by independently adjusting the heating temperature of the first heating electrode 321 or the second heating electrode 322, thereby facilitating the realization of a sharing mode, a single-sided anti-peeping mode, a single-sided improved luminous efficiency, a double-sided anti-peeping mode, a double-sided improved luminous efficiency, and switching between modes of the display panel 100.

[0061] In an optional embodiment of the present invention, the material of the isolation layer 34 is a light-proof, heat-insulating material that does not react with polymer-stabilized cholesteric liquid crystals. In this way, the two parts of the separated polymer-stabilized cholesteric liquid crystal display device can independently reflect light of different colors, which is conducive to realizing the sharing mode, single-sided anti-peeping mode, single-sided improved luminous efficiency, double-sided anti-peeping mode, double-sided improved luminous efficiency, and switching between modes of the display panel 100. It should be noted that the specific material and setting thickness of the isolation layer 34 are not specifically limited here, as long as the polymer-stabilized cholesteric liquid crystal display devices on both sides of the isolation layer 34 do not affect each other.

[0062] Please refer again Fig. 9 In one embodiment of the present invention, the left half of the left polymer-stabilized cholesteric liquid crystal display device is displayed in red (i.e., R4 in the figure) and reflects red (i.e., R4 in the figure), and the right half is displayed in green (i.e., G4 in the figure) and reflects green (i.e., G4 in the figure). The colors of the light emitted by the light-emitting units 2 on the left and right sides are red (i.e., R4 in the figure) and green (i.e., G4 in the figure), respectively. The red (i.e., R4 in the figure) light reflected from the left half will enhance the red (i.e., R4 in the figure) light emitted by the light-emitting unit 2 on the left, thereby improving the light-emitting efficiency on the left side; at the same time, the green (i.e., G4 in the figure) light reflected from the right half will enhance the green (i.e., G4 in the figure) light emitted by the light-emitting unit 2 on the right, thereby improving the light-emitting efficiency on the right side. The left half of the polymer-stabilized cholesteric liquid crystal display device on the right side is displayed as green (i.e., G4 in the figure), and reflects green (i.e., G4 in the figure), and the right half is displayed as blue (i.e., B4 in the figure), and reflects blue (i.e., B4 in the figure). The colors of the light emitted by the light-emitting units 2 on the left and right sides are green (i.e., G4 in the figure) and blue (i.e., B4 in the figure), respectively. The green (i.e., G4 in the figure) light reflected from the left half will enhance the green (i.e., G4 in the figure) light emitted by the light-emitting unit 2 on the left side, thereby improving the light-emitting efficiency on the left side; at the same time, the blue (i.e., B4 in the figure) light reflected from the right half will enhance the blue (i.e., B4 in the figure) light emitted by the light-emitting unit 2 on the right side, thereby improving the light-emitting efficiency on the right side. That is, the display panel 100 of this embodiment shows that the light-emitting efficiency on both sides is improved.

[0063] Please refer again Fig.10In one embodiment of the present invention, the left half of the left polymer-stabilized cholesteric liquid crystal display device is displayed in green (i.e., G5 in the figure) and reflects green (i.e., G5 in the figure), and the right half is displayed in blue (i.e., B5 in the figure) and reflects blue (i.e., B5 in the figure). The colors of the light emitted by the light-emitting units 2 on the left and right sides are red (i.e., R5 in the figure) and green (i.e., G5 in the figure), respectively. The green (i.e., G5 in the figure) light reflected from the left half will interfere with the red (i.e., R5 in the figure) light emitted by the light-emitting unit 2 on the left, presenting left-side anti-peeping; at the same time, the blue (i.e., B5 in the figure) light reflected from the right half will interfere with the green (i.e., G5) light emitted by the light-emitting unit 2 on the right, presenting right-side anti-peeping. The left half of the polymer-stabilized cholesteric liquid crystal display device on the right side is displayed in red (i.e., R5 in the figure), and reflects red (i.e., R5 in the figure), and the right half is displayed in green (i.e., G5 in the figure), and reflects green (i.e., G5 in the figure), and the colors of the light emitted by the light-emitting units 2 on the left and right sides are green (i.e., G5 in the figure) and blue (i.e., B5 in the figure), respectively. The red (i.e., R5 in the figure) light reflected from the left half will interfere with the green (i.e., G5 in the figure) light emitted by the light-emitting unit 2 on the left, presenting left-side anti-peeping; at the same time, the green (i.e., G5 in the figure) light reflected from the right half will interfere with the blue (i.e., B5 in the figure) light emitted by the light-emitting unit 2 on the right, presenting right-side anti-peeping. That is, the display panel 100 of this embodiment presents a double-sided anti-peeping mode.

[0064] Please refer again Figures 1 to 10 Furthermore, in the above embodiment of the present invention, the anti-peeping unit 3 also includes a pixel definition layer 35 , and the pixel definition layer 35 is arranged in the accommodating space and located on the outside of the heat insulation layer 33 .

[0065] Specifically, the pixel definition layer 35 is filled on the outside of the heat insulation layer 33 of the anti-peeping unit 3 in the accommodating space. The pixel definition layer 35 can be selected as an optically homogeneous film layer, which can ensure that the direction of the external ambient light is not affected during the transmission process, so that it can be irradiated on the anti-peeping unit 3 more evenly, which is conducive to ensuring a good anti-peeping effect.

[0066] Please refer again Figures 1 to 10 Furthermore, in the above embodiment of the present invention, the array substrate 1 includes a base substrate 11 and a driving circuit layer 12 arranged on one surface of the base substrate 11, the light-emitting unit 2 is located on the surface of the driving circuit layer 12 facing away from the base substrate 11, and the heating electrode 32 is electrically connected to the driving circuit layer 12.

[0067] Specifically, the base substrate 11 may be a glass substrate or a polyvinyl chloride substrate, and the driving circuit layer 12 may be a thin film transistor driving circuit layer, which has a TFT metal circuit and is electrically connected to the heating electrode 32 through a connecting wire, and can drive the heating electrode 32 to heat the display device 31, and can adjust different heating temperatures by adjusting the voltage of the driving circuit layer 12. The specific structures of the base substrate 11 and the driving circuit layer 12 can refer to the prior art, and will not be described one by one here.

[0068] Please refer again Figures 1 to 10 Furthermore, in the above-mentioned embodiment of the present invention, the light-emitting unit 2 includes an anode layer 21, a light-emitting layer 22 and a cathode layer 23 which are stacked, two adjacent light-emitting units 2 are connected by the cathode layer 23, and the two adjacent light-emitting units 2 and the cathode layer 23 jointly define an accommodating space.

[0069] The light-emitting unit 2 is used to emit light. In the shared mode, the light-emitting unit 2 can emit light and display at both normal viewing angles and wide viewing angles, and the light-emitting efficiency can be improved on both sides at wide viewing angles; in the anti-peeping mode, the light-emitting unit 2 can display normally at a normal viewing angle, but cannot display normally at a wide viewing angle. Specifically, in the single-sided anti-peeping mode, the light-emitting unit 2 can display normally at a normal viewing angle, but one side cannot display normally at a wide viewing angle, and the light-emitting efficiency can be improved on the other side; in the double-sided anti-peeping mode, the light-emitting unit 2 can display normally at a normal viewing angle, but both sides cannot display normally at a wide viewing angle. The specific structure of the light-emitting unit 2 is a conventional setting, and the specific details can refer to the prior art. The accommodating space is defined by two adjacent light-emitting units 2 and the cathode layer 23. The shape of the accommodating space can be selected as a trapezoid, a vertex shape, a semicircle or other reasonable shapes. Its internal size is not limited, as long as it can accommodate the anti-peeping unit 3.

[0070] Please refer again Figures 1 to 10 Furthermore, in the above embodiment of the present invention, the display panel 100 further includes an encapsulation layer 5 , and the encapsulation layer 5 is disposed between the light emitting unit 2 and the light shielding unit 6 .

[0071] Specifically, the encapsulation layer 5 is used to prevent oxygen and moisture in the environment from entering the display panel 100, thereby protecting the internal components. Optionally, the encapsulation layer 5 includes an inorganic encapsulation layer 51, an organic encapsulation layer 52, and an inorganic encapsulation layer 51 stacked in sequence, wherein the inorganic encapsulation layer 51 can be made of a transparent ceramic material (such as SiN x 、SiO x 、SiO x N y) or transparent metal oxide materials (such as Al2O3, TiO2, MgO, CrO), and the thickness of the inorganic encapsulation layer 51 can be selected to be in the range of 100-2000nm. The organic encapsulation layer 52 is made of organic polymer materials (such as polyethylene terephthalate, polyimide, polycarbonate, epoxy resin, polyethylene and polyacrylate), and the thickness of the organic encapsulation layer 52 can be selected to be in the range of 1000-12000nm.

[0072] It should be noted that the method for manufacturing the encapsulation layer 5 includes but is not limited to inkjet printing and plasma enhanced chemical vapor deposition.

[0073] The present invention further proposes a display device, which includes a display panel 100. The specific structure of the display panel 100 refers to the above embodiment. Since the display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0074] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A display panel, characterized in that: The display panel comprises: An array substrate; A plurality of light emitting units are arranged at intervals on a surface of the array substrate and are connected to each other, and an accommodation space is defined between two adjacent light emitting units; A plurality of anti-peeping units are correspondingly arranged in the accommodating space, the anti-peeping units include a display device, a heating electrode and a heat insulating layer, the heating electrode is arranged on the surface of the display device facing the array substrate and is electrically connected to the array substrate, and the heat insulating layer is arranged around the outer sides of the display device and the heating electrode; A shading unit, the shading unit is arranged corresponding to the anti-peeping unit; The heating electrode can heat the display device under the action of the circuit of the array substrate, so that the display device displays different colors, so that the display panel is in a sharing mode or an anti-peeping mode; Among them, at different heating temperatures, the display device will display different colors, and then reflect light of different colors to the external ambient light. When the reflected light is colored and the color is different from the color of the light emitted by the corresponding light-emitting unit, the display panel is in anti-peeping mode; when the display device is displayed as black as a whole, the display device will not reflect colored light to realize the sharing mode of the display panel; when the reflected light is colored and the color is the same as the color of the light emitted by the corresponding light-emitting unit, the luminous efficiency of the corresponding light will be improved.

2. The display panel according to claim 1, wherein: The display device is a polymer-stabilized cholesteric liquid crystal display device or a thermochromic photonic crystal display device.

3. The display panel according to claim 2, wherein: The display device is a polymer-stabilized cholesteric liquid crystal display device, and when the heating temperature of the heating electrode is a first preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays black, and the display panel is in a sharing mode; When the heating temperature of the heating electrode is the second preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays in color, and the display panel is in a single-side privacy protection mode or a double-side privacy protection mode.

4. The display panel according to claim 3, wherein: The polymer-stabilized cholesteric liquid crystal display device comprises a light-transmitting packaging shell and a polymer-stabilized cholesteric liquid crystal arranged in the light-transmitting packaging shell; The heating electrode is arranged on the surface of the light-transmitting packaging shell facing the array substrate, and the heat-insulating layer is arranged around the outer side of the light-transmitting packaging shell.

5. The display panel according to claim 4, wherein: The shape of the heat insulation layer is the same as the shape of the light-transmitting packaging shell; and / or, The cross-sectional outer contour of the light-transmitting packaging shell is in the shape of a triangle, a semicircle or a trapezoid.

6. The display panel according to claim 4, wherein: The anti-peeping unit further includes an isolation layer extending in a direction perpendicular to the array substrate, wherein the isolation layer separates the polymer-stabilized cholesteric liquid crystal display device into two parts and is exposed on a surface of the polymer-stabilized cholesteric liquid crystal display device facing the array substrate; The heating electrodes include a first heating electrode and a second heating electrode, and the first heating electrode and the second heating electrode are respectively located at two sides of the exposed portion of the isolation layer, so that the two parts of the polymer-stabilized cholesteric liquid crystal display device display different colors.

7. The display panel according to claim 6, wherein: The material of the isolation layer is a light-proof, heat-insulating material that does not react with the polymer-stabilized cholesteric liquid crystal.

8. The display panel according to any one of claims 1 to 7, characterized in that: The anti-peeping unit further includes a pixel definition layer, which is disposed in the accommodating space and located outside the heat insulation layer; and / or, The array substrate comprises a base substrate and a driving circuit layer arranged on a surface of the base substrate, the light emitting unit is located on a surface of the driving circuit layer facing away from the base substrate, and the heating electrode is electrically connected to the driving circuit layer.

9. The display panel according to any one of claims 1 to 7, characterized in that: The display panel further includes an encapsulation layer, and the encapsulation layer is disposed between the light emitting unit and the light shielding unit.

10. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 9.

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