Display panel and display apparatus

Abstract

Disclosed in the present application are a display panel (100) and a display apparatus. The display panel (100) comprises an array substrate (1), a plurality of light-emitting units (2), a plurality of anti-peeping units (3) and a light-shielding unit (6), wherein the plurality of light-emitting units (2) are arranged at intervals on the surface of the array substrate (1) and are connected to each other, and an accommodating space is defined between two adjacent light-emitting units (2); the plurality of anti-peeping units (3) are arranged in corresponding accommodating spaces; each anti-peeping unit (3) comprises a display device (31), a heating electrode (32) and a heat insulation layer (33), the heating electrode (32) being electrically connected to the array substrate (1), and the heat insulation layer (33) surrounding the display device (31) and the heating electrode (32); and the light-shielding unit (6) is arranged corresponding to the anti-peeping unit (3).

Description

Display panel and display device

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202411436576.2, filed on October 15, 2024, the entire contents of which are incorporated herein by reference.

[0003] Technical Field

[0004] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0005] In the field of display technology, Organic Light-Emitting Diode (OLED) displays are widely used in electronic devices such as mobile phones, laptops, and automotive displays due to their advantages such as active light emission, low power consumption, fast response speed, and wide viewing angle. However, OLEDs have certain limitations, such as relatively high power consumption and the ability to reflect ambient light, which can affect display quality. Especially in strong ambient light, the reflected light from the OLED can interfere with the screen's light emission, thus affecting display brightness. Therefore, if some display functions, such as privacy protection, could be implemented using the ambient light incident on the display panel, it would be a beneficial outcome.

[0006] Currently, privacy protection is achieved in two ways: one is by adding a privacy film to the display screen, which reduces display brightness and affects display quality; the other is by using privacy pixels, but this method increases power consumption and cost. Summary of the Invention

[0007] The main objective of this application is to provide a display panel and display device that achieves privacy protection without affecting display brightness and saves power consumption.

[0008] To achieve the above objectives, this application provides a display panel, the display panel comprising:

[0009] Array substrate;

[0010] Multiple light-emitting units are spaced apart on one surface of the array substrate and connected to each other, with an accommodating space defined between two adjacent light-emitting units;

[0011] Multiple privacy protection units are correspondingly disposed within the accommodating space. Each privacy protection unit includes a display device, a heating electrode, and a heat insulation layer. The heating electrode is disposed on the surface of the display device facing the array substrate and is electrically connected to the array substrate. The heat insulation layer is arranged around the outside of the display device and the heating electrode.

[0012] A light-shielding unit is provided corresponding to the privacy protection unit;

[0013] The heating electrode can heat the display device under the action of the circuit on the array substrate, so that the display device displays different colors and the display panel is in a shared mode or a privacy mode.

[0014] This application also proposes a display device, which includes a display panel as described above.

[0015] The technical solution of this application includes a display panel comprising an array substrate, multiple light-emitting units, multiple privacy units, and a light-shielding unit. The multiple light-emitting units are spaced apart and connected to each other on one surface of the array substrate, with an accommodating space defined between adjacent light-emitting units. The multiple privacy units are correspondingly disposed within the accommodating space. Each privacy unit includes a display device, a heating electrode, and a heat insulation layer. The heating electrode is disposed on the surface of the display device facing the array substrate and is electrically connected to the array substrate. The heat insulation layer is arranged around the outside of the display device and the heating electrode. The light-shielding unit is disposed corresponding to the privacy unit. Under the action of the circuitry on the array substrate, the heating electrode can heat the display device, causing it to display different colors, thus enabling the display panel to be in either a shared mode or a privacy mode. This application utilizes the fact that the display device can display different colors at different heating temperatures of the heating electrode and can reflect different colors of ambient light, thereby achieving switching between the privacy mode and the shared mode of the display panel. Furthermore, it improves the luminous efficiency of the display panel, thereby enhancing the display effect. Simultaneously, it eliminates the need for additional privacy pixels, effectively saving power consumption. The privacy protection function of the display panel provided in this application is more comprehensive, which can meet the different needs of users, improve the flexibility of the display panel and enhance the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 is a schematic diagram of the structure of an embodiment of the display panel provided in this application in privacy mode;

[0018] Figure 2 is a schematic diagram of the structure of an embodiment of the display panel provided in this application in the shared mode;

[0019] Figure 3 is a schematic diagram of the structure of an embodiment of the display panel provided in this application in a privacy mode on one side;

[0020] Figure 4 is a schematic diagram of the structure of an embodiment of the display panel provided in this application in privacy mode on the other side;

[0021] Figure 5 is a schematic diagram of the structure of an embodiment of the display panel provided in this application in dual-sided privacy mode;

[0022] Figure 6 is a schematic diagram of another embodiment of the display panel provided in this application in privacy mode;

[0023] Figure 7 is a structural schematic diagram of another embodiment of the display panel provided in this application in the shared mode;

[0024] Figure 8 is a schematic diagram of the structure of another embodiment of the display panel provided in this application in privacy mode;

[0025] Figure 9 is a structural schematic diagram of another embodiment of the display panel provided in this application in the shared mode;

[0026] Figure 10 is a structural schematic diagram of another embodiment of the display panel provided in this application in dual-sided privacy mode.

[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0031] This application proposes a display panel 100, namely an OLED display panel 100, which aims to achieve privacy protection without affecting display brightness and saving power consumption.

[0032] It should be noted that the lines with arrows in Figures 1 to 10 represent light. The light in the figures includes ambient light shining on the privacy unit 3, light reflected by the privacy unit 3, and light emitted by the light-emitting unit 2.

[0033] Please refer to Figures 1 and 2. In one embodiment of this application, the display panel 100 includes an array substrate 1, a plurality of light-emitting units 2, a plurality of privacy protection units 3, and a light-shielding unit 6. The plurality of light-emitting units 2 are spaced apart on one surface of the array substrate 1 and connected to each other, with an accommodating space defined between adjacent light-emitting units 2. The plurality of privacy protection units 3 are correspondingly disposed within the accommodating space. Each privacy protection unit 3 includes a display device 31, a heating electrode 32, and a heat insulation layer 33. The heating electrode 32 is disposed on the surface of the display device 31 facing the array substrate 1 and is electrically connected to the array substrate 1. The heat insulation layer 33 is arranged around the outside of the display device 31 and the heating electrode 32. The light-shielding unit 6 is disposed corresponding to the privacy protection unit 3. Under the action of the circuit of the array substrate 1, the heating electrode 32 can heat the display device 31 so that the display device 31 displays different colors, so that the display panel 100 is in a shared mode or a privacy protection mode.

[0034] Specifically, the array substrate 1 is a metal thin-film transistor array substrate, containing a metal thin-film transistor circuit pattern. This circuit pattern, controlled by a driver IC, can generate a positive or negative electric field. The light-shielding unit 6 is part of the color filter layer, which is disposed 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 the light-shielding unit 6. The color filter layer is conventionally configured, and its specific structure can be referenced from existing technologies. Because the RGB filters allow the transmitted light to match the color emitted by the light-emitting unit 2, when ambient light enters the display panel 100, some of it is absorbed by the light-shielding unit 6, and the remaining portion is filtered out by the RGB filters, leaving only a small portion of a single color of light to pass through. The light-emitting unit 2 corresponds to the RGB filter setting and is used for light emission from a normal viewing angle. The privacy unit 3 is set in the accommodating space defined between two adjacent light-emitting units 2. The accommodating space is set in a trapezoidal shape and corresponds to the light-shielding unit 6. That is, the privacy unit 3 corresponds to the light-shielding unit 6. In this way, the non-light-emitting area can be used to achieve the privacy effect, and the privacy effect is high. The display device 31 is in contact with the heating electrode 32, which is transparent to avoid interference with light from colors. The heating electrode 32 is electrically connected to the array substrate 1 via 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, thus reflecting different colors of light from the ambient light. When the reflected light is colored and the color is different from the light emitted by the corresponding light-emitting unit 2, it will interfere with the wide-viewing angle light of the front display pixels, causing the display panel 100 to not display the image normally at wide viewing angles. At this time, the display panel 100 is in privacy mode. When the display device 31 is entirely black, it will not reflect colored light, and the wide-viewing angle light of the front display pixels will not be interfered with, thus realizing the sharing mode of the display panel 100. When the reflected light is colored and the color is the same as the light emitted by the corresponding light-emitting unit 2, the luminous efficiency of the corresponding light will be improved. The heat insulation 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 privacy protection effect of the display panel 100.

[0035] This application utilizes the ability of the display device 31 to display different colors at different heating temperatures of the heating electrode 32, and to reflect ambient light of different colors, thereby enabling the switching between the privacy mode and sharing mode of the display panel 100. Furthermore, it improves the luminous efficiency of the display panel 100, thus enhancing its display effect. Simultaneously, it eliminates the need for additional privacy pixels, effectively saving power. The privacy function of the display panel 100 provided by this application is more comprehensive, meeting diverse user needs, increasing the flexibility of the display panel 100, and enhancing the user experience.

[0036] In this embodiment, the display device 31 is a polymer-stabilized cholesteric liquid crystal display device or a thermochromic photonic crystal display device.

[0037] Polymer-stabilized cholesteric liquid crystal display devices (MSLCDs) feature high-temperature-sensitive structural colors, photosensitive pigment colors, and progressively tunable fluorescent colors. By adjusting different heating temperatures, MSLCDs can display colors such as red, blue, green, and black, and reflect light of the corresponding colors. MSLCDs exhibit high temperature sensitivity, enabling rapid changes in their structural colors when different temperatures are applied to the heating electrode 32. This allows for quick switching between the privacy mode and sharing mode of the display panel 100, avoiding excessively long switching times due to structural color changes.

[0038] Thermochromic photonic crystal display devices can also rapidly change their structural color when different temperatures are applied to the heating electrode 32, displaying different colors and reflecting different colors of light. They can also quickly switch between the privacy mode and the sharing mode of the display panel 100.

[0039] Please refer again to Figures 1 to 5. In one embodiment of this application, 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 black, and the display panel 100 is in a shared mode. When the heating temperature of the heating electrode 32 is a second preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays color, and the display panel 100 is in a single-sided privacy mode or a double-sided privacy mode.

[0040] Specifically, the first preset temperature is room temperature or 0°C. When the heating electrode 32 is at room temperature or not heated, ambient light shines on the polymer-stabilized cholesteric liquid crystal display device, and the polymer-stabilized cholesteric liquid crystal display device displays black and does not reflect light of other colors. At this time, the wide viewing angle light of the front display pixels is not interfered with, and the display panel 100 is in shared mode. The second preset temperature is room temperature plus 3°C. When the heating electrode 32 is at room temperature plus 3°C, ambient light shines 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.

[0041] 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 light-emitting unit 2, that side will interfere with the wide-viewing-angle light of the front display pixels, causing the display panel 100 to fail to display the image on that side at wide viewing angles. In this case, the display panel 100 is in a one-sided privacy mode (i.e., a single-sided privacy 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 light-emitting unit 2, the light on that side will be enhanced, increasing the luminous efficiency of the corresponding light on that side (i.e., increasing the luminous efficiency of one side). If the color of the light reflected from both sides is the same as the color of the light emitted by the corresponding light-emitting unit 2, the light on both sides will be enhanced, increasing the luminous efficiency of the corresponding light on both sides (i.e., increasing the luminous efficiency of both sides). If the color of the light reflected from both sides is different from the color of the light emitted by the corresponding light-emitting unit 2, both sides will interfere with the wide-viewing-angle light of the front display pixels, causing the images on both sides of the display panel 100 to fail to display normally at wide viewing angles. In this case, the display panel 100 is in a two-sided privacy mode (i.e., a dual-sided privacy mode).

[0042] Please refer to Figure 3 again. In one embodiment of this application, the polymer-stabilized cholesteric liquid crystal display device in the left privacy unit 3 is displayed in red (i.e., R1 in the figure) and reflects red (i.e., R1 in the figure) light. 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, improving the light emission efficiency of the left side. 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, presenting a right-side privacy mode. The polymer-stabilized cholesteric liquid crystal display device in the right-side privacy unit 3 displays green (i.e., G1 in the figure) and reflects green (i.e., G1 in the figure) light. 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 enhances the green (i.e., G1 in the figure) light emitted by the left light-emitting unit 2, improving the luminous efficiency on the left side. The green (i.e., G1 in the figure) light reflected from the right side interferes with the blue (i.e., B1 in the figure) light emitted by the right light-emitting unit 2, presenting a right-side privacy mode. That is, the display panel 100 in this embodiment presents a left-side improved luminous efficiency and a right-side privacy mode.

[0043] Please refer to Figure 4 again. In one embodiment of this application, the polymer-stabilized cholesteric liquid crystal display device in the left privacy unit 3 is displayed as green (i.e., G2 in the figure) and reflects green (i.e., G2 in the figure) light. 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 from the left light-emitting unit 2, presenting a left privacy mode; while 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 from the right light-emitting unit 2, improving the luminous efficiency of the right side. The polymer-stabilized cholesteric liquid crystal display device in the right-side privacy unit 3 displays blue (i.e., Figure B2) and reflects blue (i.e., Figure B2) light. The light emitted by the light-emitting units 2 on the left and right sides are green (i.e., Figure G2) and blue (i.e., Figure B2) respectively. The blue (i.e., Figure B2) light reflected from the left side interferes with the green (i.e., Figure G2) light emitted by the left-side light-emitting unit 2, presenting a left-side privacy mode; while the blue (i.e., Figure B2) light reflected from the right side enhances the blue (i.e., Figure B2) light emitted by the right-side light-emitting unit 2, thus improving the luminous efficiency of the right side. That is, the display panel 100 in this embodiment presents a left-side privacy mode, while the right side improves luminous efficiency.

[0044] Please refer to Figure 5 again. In one embodiment of this application, the polymer-stabilized cholesteric liquid crystal display device in the left privacy unit 3 is displayed in blue (i.e., Figure B3) and reflects blue (i.e., Figure B3) light. The light emitted by the light-emitting units 2 on the left and right sides are red (i.e., Figure R3) and green (i.e., Figure G3) respectively. The blue (i.e., Figure B3) light reflected from the left side will interfere with the red (i.e., Figure R3) light emitted from the left light-emitting unit 2, presenting a left privacy mode. At the same time, the blue (i.e., Figure B3) light reflected from the right side will interfere with the green (i.e., Figure G3) light emitted from the right light-emitting unit 2, presenting a right privacy mode. The polymer-stabilized cholesteric liquid crystal display device in the right-side privacy unit 3 displays red (i.e., R3 in the figure) and reflects red (i.e., R3 in the figure) light. 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 interferes with the green (i.e., G3 in the figure) light emitted from the left light-emitting unit 2, presenting a left-side privacy mode. At the same time, the red (i.e., R3 in the figure) light reflected from the right side interferes with the blue (i.e., B3 in the figure) light emitted from the left light-emitting unit 2, presenting a right-side privacy mode. That is, the display panel 100 in this embodiment presents a dual-side privacy mode.

[0045] In one embodiment of this application, the polymer-stabilized cholesteric liquid crystal display device includes a light-transmitting encapsulation shell and a polymer-stabilized cholesteric liquid crystal disposed within the light-transmitting encapsulation shell; a heating electrode 32 is disposed on the surface of the light-transmitting encapsulation shell facing the array substrate 1, and a heat insulation layer 33 is arranged around the outside of the light-transmitting encapsulation shell.

[0046] In this embodiment, the material of the light-transmitting encapsulation shell is light-transmitting, so as to allow ambient light from the outside to pass through the light-transmitting encapsulation shell and illuminate the polymer-stabilized cholesteric liquid crystal inside, thereby causing the polymer-stabilized cholesteric liquid crystal to display different colors at different heating temperatures and reflect different colors of light.

[0047] The cross-sectional outer contour shape of the light-transmitting encapsulation shell can be semi-circular, triangular, trapezoidal, or other reasonable shapes, and is not limited here.

[0048] The heat insulation layer 33 has the same shape as the light-transmitting encapsulation shell to provide heat insulation, and its structure is relatively compact, which helps to reduce the overall size of the display panel 100.

[0049] As shown in Figures 1 to 5, in one embodiment of this application, the cross-sectional outer contour shape of the light-transmitting encapsulation shell is triangular, and correspondingly, the outer contour shape of the heat insulation layer 33 is triangular.

[0050] As shown in Figures 6 and 7, in another embodiment of this application, the cross-sectional outer contour shape of the light-transmitting encapsulation shell is semi-circular, and correspondingly, the outer contour shape of the heat insulation layer 33 is semi-circular.

[0051] It should be noted that the only difference between the embodiments shown in Figures 6 and 7 and the embodiments shown in Figures 1 and 2 is the shape of the light-transmitting encapsulation shell and the heat insulation layer 33. All other settings are the same. That is, the embodiments shown in Figures 6 and 7 can also realize privacy mode, single-sided privacy mode, double-sided privacy mode and switching between modes, and can also improve the light emission efficiency of one side.

[0052] Please refer to Figures 8 to 10. In one embodiment of this application, the privacy unit 3 further includes an isolation layer 34 extending in a direction perpendicular to the array substrate 1. The isolation layer 34 divides 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.

[0053] In this embodiment, an isolation layer 34 is provided in the middle of the polymer-stabilized cholesteric liquid crystal display device to separate the polymer-stabilized cholesteric liquid crystal display device. The heating electrodes 32 are independent first heating electrodes 321 and second heating electrodes 322. In this way, 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. By independently adjusting the heating temperature of the first heating electrode 321 or the second heating electrode 322, the two parts of the polymer-stabilized cholesteric liquid crystal display device after separation can display different colors and reflect different colors of light. This is beneficial to realize the shared mode, single-sided privacy mode, single-sided improved luminous efficiency, double-sided privacy mode, double-sided improved luminous efficiency, and the switching between modes of the display panel 100.

[0054] In this embodiment, the isolation layer 34 is made of an opaque, heat-insulating material that does not react with the polymer-stabilized cholesteric liquid crystal. This allows the two separated parts of the polymer-stabilized cholesteric liquid crystal display device to independently reflect different colors of light, thereby facilitating the realization of shared mode, single-sided privacy mode, single-sided luminous efficiency enhancement, double-sided privacy mode, double-sided luminous efficiency enhancement, and switching between modes of the display panel 100. It should be noted that the specific material and 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.

[0055] Please refer again to Figure 9. In one embodiment of this application, the left half of the 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) light, while the right half is displayed in green (i.e., G4 in the figure) and reflects green (i.e., G4 in the figure) light. 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 left light-emitting unit 2, thereby improving the luminous efficiency of 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 right light-emitting unit 2, thereby improving the luminous efficiency of the right side. The left half of the polymer-stabilized cholesteric liquid crystal display device on the right is green (i.e., Figure G4) and reflects green (i.e., Figure G4) light, while the right half is blue (i.e., Figure B4) and reflects blue (i.e., Figure B4) light. The light emitted by the light-emitting units 2 on the left and right sides are green (i.e., Figure G4) and blue (i.e., Figure B4) respectively. The green (i.e., Figure G4) light reflected from the left half enhances the green (i.e., Figure G4) light emitted by the left light-emitting unit 2, improving the luminous efficiency on the left side. At the same time, the blue (i.e., Figure B4) light reflected from the right half enhances the blue (i.e., Figure B4) light emitted by the right light-emitting unit 2, improving the luminous efficiency on the right side. That is, the display panel 100 of this embodiment exhibits improved luminous efficiency on both sides.

[0056] Please refer again to Figure 10. In one embodiment of this application, the left half of the polymer-stabilized cholesteric liquid crystal display device is displayed in green (i.e., figure G5) and reflects green (i.e., figure G5) light, while the right half is displayed in blue (i.e., figure B5) and reflects blue (i.e., figure B5) light. The light emitted by the light-emitting units 2 on the left and right sides are red (i.e., figure R5) and green (i.e., figure G5) respectively. The green (i.e., figure G5) light reflected from the left half interferes with the red (i.e., figure R5) light emitted from the left light-emitting unit 2, thus providing privacy protection on the left. At the same time, the blue (i.e., figure B5) light reflected from the right half interferes with the green (i.e., figure G5) light emitted from the right light-emitting unit 2, thus providing privacy protection on the right. The left half of the polymer-stabilized cholesteric liquid crystal display device on the right is displayed in red (i.e., R5 in the figure) and reflects red (i.e., R5 in the figure), while the right half is displayed in green (i.e., G5 in the figure) and reflects green (i.e., G5 in the figure). 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 interferes with the green (i.e., G5 in the figure) light emitted from the left light-emitting unit 2, thus providing privacy protection on the left side. At the same time, the green (i.e., G5 in the figure) light reflected from the right half interferes with the blue (i.e., B5 in the figure) light emitted from the right light-emitting unit 2, thus providing privacy protection on the right side. That is, the display panel 100 in this embodiment presents a dual-sided privacy protection mode.

[0057] Please refer again to Figures 1 to 10. Further, in the above embodiments of this application, the privacy unit 3 also includes a pixel definition layer 35, which is disposed in the accommodating space and located outside the heat insulation layer 33.

[0058] Specifically, the pixel definition layer 35 fills the outer side of the heat insulation layer 33 of the privacy unit 3 within the accommodating space. The pixel definition layer 35 is an optical homogeneous film layer, which can ensure that the direction of external ambient light is not affected during transmission, so that it can be irradiated onto the privacy unit 3 more evenly, thereby helping to ensure a good privacy effect.

[0059] Please refer again to Figures 1 to 10. Further, in the above embodiments of this application, the array substrate 1 includes a substrate 11 and a driving circuit layer 12 disposed on a surface of the substrate 11. The light-emitting unit 2 is located on the surface of the driving circuit layer 12 facing away from the substrate 11, and the heating electrode 32 is electrically connected to the driving circuit layer 12.

[0060] Specifically, the substrate 11 is a glass substrate or a polyvinyl chloride (PVC) plate, and the driving circuit layer 12 is a thin-film transistor (TFT) driving circuit layer with TFT metal lines. It is electrically connected to the heating electrode 32 via connecting wires, which can drive the heating electrode 32 to heat the display device 31. Different heating temperatures can be adjusted by regulating the voltage of the driving circuit layer 12. The specific structures of the substrate 11 and the driving circuit layer 12 can be found in existing technologies and will not be described in detail here.

[0061] Please refer again to Figures 1 to 10. Further, in the above embodiments of this application, the light-emitting unit 2 includes an anode layer 21, a light-emitting layer 22 and a cathode layer 23 stacked together. Two adjacent light-emitting units 2 are connected by the cathode layer 23, and two adjacent light-emitting units 2 and the cathode layer 23 together define an accommodating space.

[0062] The light-emitting unit 2 is used for emitting light. In shared mode, the light-emitting unit 2 can emit light and display under both normal and wide viewing angles, and the luminous efficiency on both sides can be improved under wide viewing angles. In privacy mode, the light-emitting unit 2 can display normally under normal viewing angles, but cannot display normally under wide viewing angles. Specifically, in single-sided privacy mode, the light-emitting unit 2 can display normally under normal viewing angles, but one side cannot display normally under wide viewing angles, while the other side can improve luminous efficiency. In double-sided privacy mode, the light-emitting unit 2 can display normally under normal viewing angles, but both sides cannot display normally under wide viewing angles. The specific structure of the light-emitting unit 2 is a conventional setting, and can be referred to in existing technology. 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 trapezoidal, apex-shaped, semi-circular, or other reasonable shapes, and its internal dimensions are not limited, as long as it can accommodate the privacy unit 3.

[0063] Please refer again to Figures 1 to 10. Further, in the above embodiments of this application, the display panel 100 also includes an encapsulation layer 5, which is disposed between the light-emitting unit 2 and the light-shielding unit 6.

[0064] Specifically, the encapsulation layer 5 is designed to prevent oxygen and moisture from entering the display panel 100, thus protecting the internal components. The encapsulation layer 5 comprises an inorganic encapsulation layer 51, an organic encapsulation layer 52, and the inorganic encapsulation layer 51 stacked sequentially. The inorganic encapsulation layer 51 can be made of a transparent ceramic material (such as SiN). x SiO x SiO x N yThe inorganic encapsulation layer 51 is made of transparent metal oxide materials (such as Al2O3, TiO2, MgO, CrO), and its thickness ranges from 100 to 2000 nm. The organic encapsulation layer 52 is made of organic polymer materials (such as polyethylene terephthalate, polyimide, polycarbonate, epoxy resin, polyethylene, and polyacrylate), and its thickness ranges from 1000 to 12000 nm.

[0065] It should be noted that the manufacturing methods of the encapsulation layer 5 include, but are not limited to, inkjet printing and plasma-enhanced chemical vapor deposition.

[0066] This application also proposes a display device, which includes a display panel 100. The specific structure of the display panel 100 is as described in the above embodiments. Since this display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0067] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A display panel (100), wherein, The display panel includes: Array substrate (1); Multiple light-emitting units (2) are spaced apart on one surface of the array substrate (1) and connected to each other, with an accommodating space defined between two adjacent light-emitting units (2); Multiple privacy protection units (3) are correspondingly disposed in the accommodating space. Each privacy protection unit (3) includes a display device (31), a heating electrode (32), and a heat insulation layer (33). The heating electrode (32) is disposed on the surface of the display device (31) facing the array substrate (1) and is electrically connected to the array substrate (1). The heat insulation layer (33) is arranged around the outside of the display device (31) and the heating electrode (32). A light-shielding unit (6) is provided corresponding to the privacy 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 and the display panel (100) is in a shared mode or a privacy mode.

2. The display panel (100) as claimed in claim 1, wherein, The display device (31) is a polymer-stabilized cholesteric liquid crystal display device or a thermochromic photonic crystal display device.

3. The display panel (100) as described in claim 2, wherein, The display device (31) is a polymer-stabilized cholesteric liquid crystal display device. When the heating temperature of the heating electrode (32) is the first preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays black, and the display panel (100) is in a shared mode. When the heating temperature of the heating electrode (32) is the second preset temperature, the polymer-stabilized cholesteric liquid crystal display device displays in color, and the display panel (100) is in a single-sided privacy mode or a double-sided privacy mode.

4. The display panel (100) as claimed in claim 3, wherein, 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, then the display panel (100) is in a one-sided privacy mode. If the color of the light reflected from both sides 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, then the display panel (100) is in a dual-sided privacy mode.

5. The display panel (100) as claimed in claim 3, wherein, The polymer-stabilized cholesteric liquid crystal display device includes a light-transmitting encapsulation shell and a polymer-stabilized cholesteric liquid crystal disposed within the light-transmitting encapsulation shell; The heating electrode (32) is disposed on the surface of the light-transmitting encapsulation shell facing the array substrate (1), and the heat insulation layer (33) is arranged around the outside of the light-transmitting encapsulation shell.

6. The display panel (100) as claimed in claim 5, wherein, The shape of the heat insulation layer (33) is the same as that of the light-transmitting encapsulation shell.

7. The display panel (100) as claimed in claim 5, wherein, The cross-sectional outer contour shape of the light-transmitting encapsulation shell is triangular, semi-circular, or trapezoidal.

8. The display panel (100) as claimed in claim 5, wherein, The privacy unit (3) further includes an isolation layer (34) extending in a direction perpendicular to the array substrate (1), the isolation layer (34) dividing the polymer-stabilized cholesteric liquid crystal display device into two parts and exposed on the surface of the polymer-stabilized cholesteric liquid crystal display device facing the array substrate; The heating electrode (32) includes a first heating electrode (321) and a second heating electrode (322), which are 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.

9. The display panel (100) as claimed in claim 8, wherein, The isolation layer (34) is made of a material that is opaque, heat-insulating, and does not react with the polymer-stabilized cholesteric liquid crystal.

10. The display panel (100) as claimed in any one of claims 1 to 9, wherein, The privacy unit (3) further includes a pixel definition layer (35), which is disposed within the accommodating space and located outside the heat insulation layer (33).

11. The display panel (100) as claimed in any one of claims 1 to 9, wherein, The array substrate (1) includes a substrate (11) and a driving circuit layer (12) disposed on one surface of the substrate. The light-emitting unit (2) is located on the surface of the driving circuit layer (12) facing away from the substrate (11). The heating electrode (32) is electrically connected to the driving circuit layer (12).

12. The display panel (100) as claimed in any one of claims 1 to 9, wherein, The light-emitting unit (2) includes an anode layer (21), a light-emitting layer (22) and a cathode layer (23) stacked together. Two adjacent light-emitting units (2) are connected by the cathode layer (23), and two adjacent light-emitting units (2) and the cathode layer (23) together define the accommodating space.

13. The display panel (100) as claimed in any one of claims 1 to 9, wherein, The display panel (100) further includes an encapsulation layer (5), which is disposed between the light-emitting unit (2) and the light-shielding unit (6).

14. The display panel (100) as claimed in claim 13, wherein, The encapsulation layer (5) includes an inorganic encapsulation layer (51), an organic encapsulation layer (52), and an inorganic encapsulation layer (51) stacked in sequence.

15. A display device, wherein, The display device includes a display panel (100), the display panel (100) comprising: Array substrate (1); Multiple light-emitting units (2) are spaced apart on one surface of the array substrate (1) and connected to each other, with an accommodating space defined between two adjacent light-emitting units (2); Multiple privacy protection units (3) are correspondingly disposed in the accommodating space. Each privacy protection unit (3) includes a display device (31), a heating electrode (32), and a heat insulation layer (33). The heating electrode (32) is disposed on the surface of the display device (31) facing the array substrate (1) and is electrically connected to the array substrate (1). The heat insulation layer (33) is arranged around the outside of the display device (31) and the heating electrode (32). A light-shielding unit (6) is provided corresponding to the privacy 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 and the display panel (100) is in a shared mode or a privacy mode.

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