Display device and driving method thereof

Abstract

The present application discloses a display device and a driving method thereof, wherein the display device comprises a plurality of first pixels and a plurality of second pixels, wherein the first pixels display a preset standby screen when the display device is in standby mode, and the second pixels are used to display a screen when the display device is in operation; wherein the first pixels are electronic paper pixels, and the second pixels are OLED pixels, and the anode of each of the OLED pixels is individually controlled, and each of the electronic paper sub-pixels is controlled by an individual electrode. The present application adds electronic paper pixels to the OLED panel, enables the electronic paper pixels to display a preset screen when in standby mode, and avoids displaying a black screen. The electronic paper pixels and the OLED sub-pixels operate in different display modes, which not only prolongs the standby time, but also avoids a poor product experience caused by a black screen when in standby mode.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display device and its driving method. Background Art

[0002] In the display field, whether it is OLED (Organic Light-Emitting Diode) or LCD (Liquid Crystal Display), products with special application scenarios such as wearables and mobile phones are pursuing extremely low power consumption displays. In particular, wearable watches require long-lasting battery life. Therefore, we need to design corresponding products with longer battery life according to different application scenarios.

[0003] Existing smartwatches and mobile phones, taking smartwatches as an example, mostly only need to display the time. However, every time you check the time, the entire screen needs to be turned on and then the time needs to be displayed. This requires starting up and turning on the screen, resulting in wasted power consumption. In addition, when wearing the watch, the screen is usually black to save power, which also leads to a poor product experience. Summary of the Invention

[0004] The purpose of this application is to provide a display device and its driving method that can reduce the power consumption of OLED display panels and improve the user experience.

[0005] This application discloses a display device, which includes a plurality of first pixels and a plurality of second pixels. The first pixels display a preset standby screen when the display device is in standby mode, and the second pixels are used to display a screen when the display device is in operation.

[0006] Wherein, the first pixel is an electronic paper pixel, the second pixel is an OLED pixel, the anode of each OLED pixel is individually controlled, and each electronic paper sub-pixel is controlled by a separate electrode.

[0007] Optionally, the display area of ​​the first pixel is smaller than the display area of ​​the second pixel, and the first pixel and the second pixel are staggered and arranged in the same layer. The OLED pixel includes red sub-pixels, green sub-pixels and blue sub-pixels arranged in a triangle.

[0008] The display device includes a first display area and a second display area. The first display area is arranged around the second display area. The first display area has only a second pixel. The second display area has a first pixel and a second pixel. The first pixel is arranged between adjacent blue sub-pixels.

[0009] Optionally, the second display area includes multiple preset standby screen display sub-areas, which form a clock graphic area or an 88:88 digital graphic area. Each preset standby screen display sub-area has only a first pixel, and the multiple preset standby screen display sub-areas have a second pixel between them.

[0010] Optionally, the width between two adjacent blue sub-pixels in the second display area is greater than the width between two adjacent blue sub-pixels in the first display area.

[0011] Optionally, the display area of ​​the first pixel is smaller than the display area of ​​the second pixel, and the first pixel and the second pixel are staggered, the first pixel and the second pixel are set on different layers, the first pixel is set on the side of the second pixel closer to the display surface, and in the direction from the first pixel to the second pixel, the projection surface of the first pixel is less than or equal to the width of the pixel definition area between the second pixels.

[0012] Optionally, the first pixel and the second pixel are set on different layers and are staggered. The first pixel is set on the side of the second pixel closer to the display surface. The electronic paper pixel is formed using electrowetting technology. When the display device displays a preset standby screen, the electronic paper pixel expands, and the expanded display area is greater than or equal to the display area of ​​the second pixel. When the display device is in use, the electronic paper pixel shrinks, and the electrophoretic liquid in the electronic paper pixel shrinks to the gap between the second pixels.

[0013] Optionally, the electronic paper pixel includes a first electrode, a second electrode, and an electrophoretic material disposed between the first electrode and the second electrode, wherein the second electrode is interconnected with the cathode of the OLED pixel to form a common electrode.

[0014] Optionally, the display device further includes a color resist layer disposed on the light-emitting surface of the first pixel. The color resist layer includes a black matrix of color resists disposed between the color resists. When the display device is in use, the electronic paper pixel shrinks, and the electrophoretic liquid inside the electronic paper pixel shrinks to directly below the black matrix.

[0015] This application also discloses a driving method for a display device, used to drive any of the display devices described above, the driving method comprising the steps of:

[0016] Detect the input voltage signals of the first and second pixels of the display device;

[0017] The display mode of the display device is determined based on the input voltage signal. If it is in standby display mode, the first pixel is controlled to be displayed and the second pixel is not displayed; if it is in normal use mode, the second pixel is controlled to be displayed and the first pixel is not displayed.

[0018] The first pixel is an electronic paper pixel, and the second pixel is an OLED pixel.

[0019] Optionally, the display area of ​​the first pixel is smaller than that of the second pixel, and the first pixel and the second pixel are staggered, the first pixel and the second pixel are on different layers, the first pixel is disposed on the side of the second pixel closer to the display surface, the display device further includes a color resist layer, the color resist layer is disposed on the light-emitting surface of the first pixel, the color resist layer includes a color resist black matrix, the black matrix is ​​disposed between the color resists, the electronic paper pixels are formed using electrowetting technology, the step of determining the display mode of the display device based on the input voltage signal, if it is a standby screen display mode, then controlling the first pixel to display and the second pixel not to display; if it is a normal use mode, then controlling the second pixel to display and the first pixel not to display includes:

[0020] The display mode of the display device is determined based on the input voltage signal. If it is a standby screen display mode, the first pixel is controlled to be displayed and the second pixel is not displayed. If it is a normal use mode, the electrophoretic liquid of the first pixel is controlled to shrink to the bottom of the black matrix, the second pixel is controlled to be displayed, and the first pixel is not displayed.

[0021] Compared to existing display devices such as watches and mobile phones that use OLED displays, this application adds electronic paper pixels to the OLED display device. That is, the display device not only has OLED pixels, but also adds electronic paper pixels between the OLED pixels. The electronic paper pixels can display preset images, such as the time, when the display device is in standby mode. This means that the user is using the display device even when it is in standby mode, instead of seeing a black screen, thus avoiding a bad user experience. In addition, because the power consumption of displaying preset images with electronic paper pixels in standby mode is lower than that of displaying preset images with OLED pixels, it may also avoid excessive power consumption and affect the usage time of the display device. Attached Figure Description

[0022] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the display device according to the first embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the display device according to the second embodiment of this application;

[0025] Figure 3 This is a top view of the display device according to the second embodiment of this application;

[0026] Figure 4 This application is Figure 3 Enlarged schematic diagram of area A in the middle;

[0027] Figure 5 This application is Figure 3 Enlarged view of area B in the middle;

[0028] Figure 6 This is a schematic diagram of the structure of the display device according to the third embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the structure of the display device according to the fourth embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the structure of the electronic paper pixels of the display device according to the fourth embodiment of this application after shrinkage;

[0031] Figure 9 This is a schematic flowchart of the driving method for the display device according to the fifth embodiment of this application;

[0032] Figure 10 This is a top view schematic diagram of the display device according to the fifth embodiment of this application;

[0033] Figure 11 This is a schematic flowchart of the driving method for the display device according to the sixth embodiment of this application.

[0034] Among them, 100 is a display device; 110 is a first pixel; 111 is a first electrode; 112 is an electronic capsule; 113 is a second electrode; 120 is a second pixel; 121 is an anode; 122 is a cathode; 123 is an organic light-emitting layer; 124 is a pixel definition area; 130 is a first display area; 140 is a second display area; 141 is a preset standby screen display sub-area; 150 is a color resist layer; 151 is a color resist; 152 is a black matrix; and 160 is a common electrode. Detailed Implementation

[0035] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative. However, the present application can be implemented in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0036] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0037] In addition, terms such as “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” that indicate orientation or positional relationship are based on the orientation or relative positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] The present application is described in detail below with reference to the accompanying drawings and optional embodiments.

[0040] Example 1:

[0041] refer to Figure 1As shown in the first embodiment of this application, a display device 100 is disclosed. The display device 100 includes a plurality of first pixels 110 and a plurality of second pixels 120. The first pixels 110 display a preset standby screen when the display device 100 is in standby mode, and the second pixels 120 are used to display a screen when the display device 100 is in operation. The display area of ​​the first pixels 110 is smaller than the display area of ​​the second pixels 120, and the first pixels 110 and the second pixels 120 are staggered. The first pixels 110 are electronic paper pixels, and the second pixels 120 are OLED pixels. The anode 121 of each OLED pixel is individually controlled, and each electronic paper sub-pixel is controlled by a separate electrode. The OLED pixel includes an anode 121, a cathode 122, and an organic light-emitting layer 123. The electronic paper pixel includes a first electrode 111, a second electrode 113, and an electronic capsule 112.

[0042] This application primarily addresses improvements to display devices 100 such as watches and mobile phones that utilize OLED display technology. However, this application is also applicable to other display devices 100. This embodiment uses a watch as an example. Considering that watches mostly only need to display the time, if the display device 100 needs to be activated every time to display the time, it will inevitably cause power consumption, resulting in excessively fast power consumption and short standby time. Therefore, this embodiment incorporates low-power electronic paper pixels to display the time. When the display device 100 is in standby mode, the screen is off, meaning the second pixel 120 does not display, and only the first pixel 110, i.e., electronic paper pixel E, displays the time digits through ambient reflection. This achieves normal time display even in standby mode. Because the electronic paper pixels use a reflective display design and have few pixels, the entire screen does not need to be lit, thus saving extremely little power. This achieves power saving and displays the time dynamically in real time. Users do not need to activate and light up the screen every time they want to check the time, reducing power consumption and improving the user experience.

[0043] Example 2:

[0044] like Figures 2 to 4 As shown, as a second embodiment of this application, it is a further refinement of the first embodiment described above. The first pixel 110 and the second pixel 120 are arranged on the same layer. The OLED pixel includes red sub-pixels, green sub-pixels and blue sub-pixels arranged in a triangular pattern. The display device 100 includes a first display area 130 and a second display area 140. The first display area 130 is arranged around the second display area 140. Only the second pixel 120 is provided in the first display area 130. The second display area 140 is provided with the first pixel 110 and the second pixel 120. The first pixel 110 is arranged between adjacent blue sub-pixels. Through the specific arrangement of the OLED pixels, more space is reserved for the setting of electronic paper pixels.

[0045] Furthermore, the second display area 140 includes multiple preset standby screen display sub-areas 141, which form a clock graphic area or an 88:88 number graphic area. Each preset standby screen display sub-area 141 contains only a first pixel 110, and second pixels 120 are provided between the multiple preset standby screen display sub-areas 141. Taking the number 8 as an example, the display of the number 8 is divided into horizontal and vertical "lines," i.e., preset standby screen display sub-areas 141. The pixel arrangement of this "line" is as follows... Figure 4 and Figure 5 As shown, by adding an electronic paper pixel E (electronic paper capsule display pixel) between the normal pixels; when in standby mode, the screen is off, and only the E pixel displays the time digits through ambient reflection, thus achieving normal time display in standby mode.

[0046] In addition, to ensure the display effect of electronic pixels, the area of ​​electronic paper pixels is generally larger than that of OLED pixels. The width between two adjacent blue sub-pixels in the second display area 140 is greater than the width between two adjacent blue sub-pixels in the first display area 130. The electronic paper pixel includes a first electrode 111, a second electrode 113, and an electrophoretic material disposed between the first electrode 111 and the second electrode 113. The second electrode 113 is interconnected with the cathode 122 of the OLED pixel to form a common electrode 160. The electronic paper pixel (EPD) and the OLED sub-pixel are independently controlled by their respective thin-film transistors and are designed independently, that is, the resolution and refresh rate are independent and designed according to the actual situation. During display, their respective driving circuits are activated for driving.

[0047] Example 3:

[0048] like Figure 6As shown, as a third embodiment of this application, unlike the second embodiment described above, the first pixel 110 and the second pixel 120 are arranged in different layers. The first pixel 110 is arranged on the side of the second pixel 120 that is close to the display surface. In the direction from the first pixel 110 to the second pixel 120, the projection surface of the first pixel 110 is less than or equal to the width of the pixel definition area 124 between the second pixels 120. By arranging the electronic paper pixels and OLED pixels in layers, the width of the display device 100 in the horizontal direction can be appropriately reduced, and the screen of the display device 100 will be smaller when viewed from above. Of course, when setting the electronic paper pixel layer, it can be set only in the display area of ​​the preset image, or it can be set as a whole layer. It can be selected according to the actual situation. If a larger area of ​​the image needs to be displayed, the electronic paper pixels can be set as a whole layer. However, it should be noted that in order to avoid the electronic paper pixels affecting the aperture ratio of the OLED pixels, the electronic paper pixels are usually placed directly above the pixel definition area 124 between the OLED pixels.

[0049] Example 4:

[0050] like Figure 7 and Figure 8 As shown, as the fourth embodiment of this application, unlike the third embodiment described above, the electronic paper pixels are formed using electrowetting technology. When the display device 100 displays a preset standby screen, the electronic paper pixels expand, and the expanded display area is greater than or equal to the display area of ​​the second pixel 120. When the display device 100 is in use, the electronic paper pixels shrink, and the electrophoretic liquid in the electronic paper pixels shrinks to the gap between the second pixels 120.

[0051] Electrophoretic solvents can, in principle, impart any desired color to pixels, thus achieving various display results. Electrowetting uses controlled voltage to control the surface of the surrounding liquid, thereby causing changes in the pixel. When no voltage is applied, a flat thin film forms between the colored liquid and the hydrophobic and insulating electrode layer, forming a colored pixel to display the preset image. When an air gap separates the electrode and the liquid, as the air gap thickness decreases, creating a segregated state, visible light interference weakens, the pixel turns black, and no image is displayed.

[0052] Furthermore, the display device 100 also includes a color resist layer 150, which is disposed on the light-emitting surface of the first pixel 110. The color resist layer 150 includes color resist 151 and a black matrix 152, which are disposed between the color resist 151. When the display device 100 is in use, the electronic paper pixel shrinks. Because the electrophoretic material will appear black after shrinking, the electrophoretic liquid in the electronic paper pixel shrinks to directly below the black matrix 152, so as to avoid the black electrophoretic material affecting the aperture ratio of the OLED pixel.

[0053] Example 5:

[0054] like Figure 9 As shown, as the fifth embodiment of this application, a driving method for a display device 100 is disclosed. The driving method of this embodiment is used to drive the display device 100 as described above, and the driving method includes the following steps:

[0055] S1: Detect the input voltage signal of the first and second pixels of the display device;

[0056] S2: Determine the display mode of the display device based on the input voltage signal. If it is the standby screen display mode, control the first pixel to display and the second pixel not to display; if it is the normal use mode, control the second pixel to display and the first pixel not to display.

[0057] The first pixel 110 is an electronic paper pixel, and the second pixel 120 is an OLED pixel.

[0058] refer to Figure 9 and Figure 10 As shown, when the second pixel 120 has no voltage signal input, it indicates that the display device 100 has turned off the screen and entered standby mode. At this time, the first pixel 110 is controlled to display a preset image, such as the time, while the second pixel 120 does not display, reducing power consumption. In standby mode, the screen is off, and only the electronic paper pixels display the time digits through ambient reflection. This achieves normal time display in standby mode. Because the electronic paper E-pixels adopt a reflective display design and have few pixels, the entire screen does not need to be lit, so it is extremely energy-efficient and consumes almost no power. The corresponding voltage is input to the first electrode 111 of the electronic paper, causing a change in the voltage difference between the first electrode 111 and the second electrode 113, thereby causing the corresponding preset standby image display sub-area 141 to display the time dynamics in real time. When the second pixel 120 receives a voltage signal input, it indicates that the display device 100 has started the screen display. At this time, the second pixel 120 is controlled to display, while the first pixel 110 is turned off, improving the display effect.

[0059] Example 6:

[0060] like Figure 11As shown, the sixth embodiment of this application further limits the fifth embodiment described above, and is intended to protect a driving method. (Refer to...) Figure 7 and Figure 8 As shown, the first pixel 110 and the second pixel 120 are disposed on different layers. The first pixel 110 is disposed on the side of the second pixel 120 closest to the display surface. The display device 100 also includes a color resist layer 150, which is disposed on the light-emitting surface of the first pixel 110. The color resist layer 150 includes color resist 151 and black matrix 152, which are disposed between the color resist 151. The electronic paper pixels are formed using electrowetting technology. The step of determining the display mode of the display device 100 based on the input voltage signal, and controlling the first pixel 110 to display while the second pixel 120 is not displayed if it is a standby screen display mode, includes:

[0061] S21: Determine the display mode of the display device based on the input voltage signal. If it is the standby screen display mode, control the first pixel to display and the second pixel not to display. If it is the normal use mode, control the electrophoretic liquid of the first pixel to shrink to the bottom of the black matrix, control the second pixel to display and the first pixel not to display.

[0062] By layering the first pixel 110 and the second pixel 120, the width in the horizontal direction is reduced, making the display device 100 more compact when viewed from above, thus improving the user's visual experience. In addition, in this embodiment, the electronic paper pixels are displayed using electrowetting technology. In standby mode, the entire layer can be displayed using electronic paper pixels, or electronic paper pixels can be set in a preset display area to display the standby screen. However, it should be noted that in order to avoid the upper layer of electronic paper pixels affecting the aperture ratio of the lower layer of OLED pixels, the electrophoretic material is shrunk by controlling the voltage of the first electrode 111 of the electronic paper pixels. Furthermore, by setting the position of the electronic paper pixels, the electrophoretic liquid in the electronic paper pixels can be shrunk to the gap between the second pixels 120, such as above the pixel definition area 124.

[0063] It should be noted that the limitations on each step involved in this solution, without affecting the implementation of the specific solution, are not considered as limiting the order of the steps. That is, the steps listed first can be executed first, later, or even simultaneously. As long as this solution can be implemented, it should be considered to fall within the scope of protection of this application.

[0064] Furthermore, the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0065] The above content is a further detailed description of the present application in conjunction with specific optional implementation methods, and the specific implementation of the present application cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, they can make several simple deductions or substitutions without departing from the concept of the present application, which should be considered to fall within the scope of protection of the present application.

Claims

1. A display device, characterized in that: The display device comprises a plurality of first pixels and a plurality of second pixels, wherein the first pixels display a preset standby screen when the display device is in standby mode, and the second pixels are used to display a screen when the display device is in operation; Wherein, the first pixel is an electronic paper pixel, the second pixel is an OLED pixel, the anode of each OLED pixel is controlled separately, and each electronic paper pixel is controlled by a separate electrode; The display area of ​​the first pixel is smaller than the display area of ​​the second pixel, and the first pixel and the second pixel are arranged in a staggered manner, the first pixel and the second pixel are arranged in the same layer, and the OLED pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel arranged in a triangle; The display device comprises a first display area and a second display area, the first display area is arranged around the second display area, only a second pixel is arranged in the first display area, the second display area is arranged with a first pixel and a second pixel, and the first pixel is arranged between adjacent blue sub-pixels; The second display area includes a plurality of preset standby screen display sub-areas, wherein the plurality of preset standby screen display sub-areas form a clock graphic area or an 88:88 digital graphic area, wherein only a first pixel is arranged in the preset standby screen display sub-area, and a second pixel is arranged between the plurality of preset standby screen display sub-areas; when in standby mode, the screen is turned off, and only the first pixel performs environmental reflection to display the time digits, so as to display the time normally; Among them, the electronic paper pixels use electrowetting technology to form a display. When the display device displays a preset standby screen, the electronic paper pixels expand, and the expanded display area is greater than or equal to the display area of ​​the blue sub-pixel. When the display device is in use, the electronic paper pixels shrink, and the electrophoretic fluid in the electronic paper pixels shrinks to the gap between the blue sub-pixels.

2. The display device according to claim 1, wherein: A width between two adjacent blue sub-pixels in the second display area is greater than a width between two adjacent blue sub-pixels in the first display area.

3. The display device according to claim 1, wherein: The electronic paper pixel comprises a first electrode, a second electrode and an electrophoretic material arranged between the first electrode and the second electrode, and the second electrode is connected to the cathode of the OLED pixel to form a common electrode.

4. A display device, characterized in that: The display device comprises a plurality of first pixels and a plurality of second pixels, wherein the first pixels display a preset standby screen when the display device is in standby mode, and the second pixels are used to display a screen when the display device is in operation; Wherein, the first pixel is an electronic paper pixel, the second pixel is an OLED pixel, the anode of each OLED pixel is controlled separately, and each electronic paper pixel is controlled by a separate electrode; The display area of ​​the first pixel is smaller than the display area of ​​the second pixel, and the first pixel and the second pixel are arranged staggered, the first pixel and the second pixel are arranged in different layers, the first pixel is arranged on a side of the second pixel close to the display surface, and in the direction from the first pixel to the second pixel, the projection surface of the first pixel is less than or equal to the width of the pixel definition area between the second pixels; The display device comprises a first display area and a second display area, the first display area is arranged around the second display area, only a second pixel is arranged in the first display area, the second display area is arranged with a first pixel and a second pixel, and the first pixel is arranged between adjacent blue sub-pixels; The second display area includes a plurality of preset standby screen display sub-areas, wherein the plurality of preset standby screen display sub-areas form a clock graphic area or an 88:88 digital graphic area, wherein only a first pixel is arranged in the preset standby screen display sub-area, and a second pixel is arranged between the plurality of preset standby screen display sub-areas; when in standby mode, the screen is turned off, and only the first pixel performs environmental reflection to display the time digits, so as to display the time normally; Among them, the electronic paper pixel uses electrowetting technology to form a display. When the display device displays a preset standby screen, the electronic paper pixel expands, and the expanded display area is greater than or equal to the display area of ​​the blue sub-pixel. When the display device is in use, the electronic paper pixel shrinks, and the electrophoretic fluid in the electronic paper pixel shrinks to above the gap between the blue sub-pixels; when on standby, the screen is turned off, and only the first pixel reflects the environment to display the time number to display the time normally.

5. A display device, characterized in that: The display device comprises a plurality of first pixels and a plurality of second pixels, wherein the first pixels display a preset standby screen when the display device is in standby mode, and the second pixels are used to display a screen when the display device is in operation; Wherein, the first pixel is an electronic paper pixel, the second pixel is an OLED pixel, the anode of each OLED pixel is controlled separately, and each electronic paper pixel is controlled by a separate electrode; The first pixel and the second pixel are arranged in different layers, and the first pixel and the second pixel are arranged staggered, the first pixel is arranged on a side of the second pixel close to the display surface, the electronic paper pixel uses electrowetting technology to form a display, when the display device displays a preset standby screen, the electronic paper pixel expands, and the expanded display area is greater than or equal to the display area of ​​the second pixel, when the display device is used, the electronic paper pixel shrinks, and the electrophoretic liquid in the electronic paper pixel shrinks to above the gap between the second pixels.

6. The display device according to claim 5, characterized in that The display device also includes a color resist layer, which is arranged on the light emitting surface of the first pixel. The color resist layer includes color resist and a black matrix, and the black matrix is ​​arranged between the color resists. When the display device is used, the electronic paper pixel shrinks, and the electrophoretic liquid in the electronic paper pixel shrinks to directly below the black matrix.

7. A method for driving a display device, for driving the display device according to any one of claims 1 to 6, characterized in that: The driving method comprises the steps of: detecting an input voltage signal of a first pixel and a second pixel of a display device; Determine the display mode of the display device according to the input voltage signal. If it is a standby screen display mode, control the first pixel to display and the second pixel not to display; if it is a normal use mode, control the second pixel to display and the first pixel not to display; Among them, the first pixel is an electronic paper pixel, and the second pixel is an OLED pixel.

8. The driving method according to claim 7, characterized in that: The display area of ​​the first pixel is smaller than the display area of ​​the second pixel, and the first pixel and the second pixel are arranged staggered, the electronic paper pixel uses electrowetting technology to form a display, and the display mode of the display device is determined according to the input voltage signal. If it is a standby screen display mode, the first pixel is controlled to display, and the second pixel is not displayed; If it is a normal use mode, the step of controlling the second pixel to display and the first pixel not to display includes: Determine the display mode of the display device according to the input voltage signal, and if it is the standby screen display mode, control the first pixel to display and the second pixel not to display; If it is a normal use mode, the electrophoretic liquid of the first pixel is controlled to shrink to just below the black matrix, the second pixel is controlled to display, and the first pixel is controlled not to display.

Images