CN111240121B - Transparent control device and display screen - Google Patents

Abstract

The application discloses a transparent control device and a display screen, which comprise a plurality of black electrophoresis ions suspended in the transparent control device and a first electrode plate arranged in the transparent control device, wherein the transparent control device comprises a first area and a second area, the first electrode plate is arranged in the second area, the first area is light-transmitting through the adsorption of the black electrophoresis ions by the first electrode plate, and the black electrophoresis ions cover the first area to realize the light-tightness of the first area. According to the technical scheme provided by the embodiment of the application, the transparent control device is an electrophoresis device, the black electrophoresis ions and the electrode plates are arranged in the device, the transparent state of light transmission is realized by adsorbing the black electrophoresis ions on the electrode plates through electrifying the electrode plates, the black state of light-tight is realized when the electrophoresis ions are not adsorbed on the electrode plates, and the transparent control device is integrated with other black layers when the transparent control device is in the black state, so that the black on a screen is in the same color, and the condition of dark holes of the screen can not occur.

Description

Transparent control device and display screen

Technical Field

The present invention generally relates to the field of screen display, and in particular to a transparent control device and a display screen.

Background technique

In the past two years, the development of full-screen phones has been booming, and the pursuit of a higher screen-to-body ratio requires solving the problem of front-facing camera settings. The solution is to use the "bangs" special-shaped screen to remove the forehead to hide the camera, but the earliest design based on this was Sharp's widow's peak. Today, the emergence of under-screen fingerprint technology and hidden earpiece design has made full-screen technology increasingly mature, and the water drop screen has come into being, so hiding the camera has become the last problem.

The mainstream solution for under-screen cameras is to dig a hole in the display function area to place the camera. However, when an opening, through hole or blind hole is set in the display function area, the panel area where the camera is located is not displayed. Therefore, it appears as a "dark hole" on the product, which does not match the surrounding black state when the screen is off and appears very dazzling.

Summary of the invention

In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a transparent control device and a display screen.

In a first aspect, a transparent control device is provided, comprising a plurality of black electrophoretic ions suspended in the transparent control device and a first electrode plate disposed in the transparent control device.

The transparent control device includes a first area and a second area. The first electrode plate is arranged in the second area. The first area is transparent by the adsorption of the black electrophoretic ions by the first electrode plate. The black electrophoretic ions cover the first area to make the first area opaque.

In a second aspect, a display screen is provided, comprising the above-mentioned transparent control device, wherein the transparent control device is arranged at a camera opening position.

According to the technical solution provided in the embodiment of the present application, a transparent control device is provided, which has black electrophoretic ions and an electrode plate. By energizing the electrode plate, the black electrophoretic ions are adsorbed on the electrode plate to achieve a light-transmitting transparent state, and the electrophoretic ions are not adsorbed on the electrode plate to achieve an opaque black state. When the transparent control device is in a black state, it merges with other black layers, so that the black on the screen appears as the same color, and there will be no dark holes on the screen.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG1 is a schematic structural diagram of a transparent control device in one embodiment;

FIG2 is a dark state schematic diagram of FIG1 ;

FIG3 is a schematic diagram of the bright state of FIG1 ;

FIG4 is a schematic diagram of the structure of a transparent control device in the second embodiment;

FIG5 is a schematic diagram of the structure of a transparent control device in the third embodiment;

FIG6 is a schematic diagram of the structure of a transparent control device in the fourth embodiment;

FIG7 is a schematic diagram of the bright state of FIG6 ;

FIG8 is a schematic diagram of the screen structure.

Detailed ways

The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the inventions. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

1 to 7 , this embodiment provides a transparent control device 1, including a plurality of black electrophoretic ions 13 suspended in the transparent control device 1 and a first electrode plate 11 disposed in the transparent control device 1.

The transparent control device 1 includes a first area 14 and a second area. The first electrode plate 11 is arranged in the second area. The first electrode plate adsorbs the black electrophoretic ions to achieve light transmission in the first area. The black electrophoretic ions cover the first area to achieve light opacity in the first area.

The present embodiment provides a transparent control device in which a plurality of black electrophoretic ions and an electrode plate are suspended. When the electrode plate is energized, the black electrophoretic ions are adsorbed on the electrode plate to achieve a light-transmitting transparent state. When the electrophoretic ions are not adsorbed on the electrode plate, a light-opaque black state is achieved. When the transparent control device is in a black state, it merges with other black layers, so that the black on the screen appears as the same color, and there will be no dark holes on the screen.

The transparent control device in this embodiment includes a first area, which is an area that needs to be light-transmitting. The first electrode plate is set in a non-first area, that is, the second area, to form a structure as shown in Figure 7. When the device needs to be in a black state, the electrophoretic ions are suspended in the device in a disorderly manner, covering the first area, so that the entire device is in a black state. When the device needs to be in a transparent state, the first electrode plate is charged with a polarity opposite to that of the electrophoretic ions, and all the electrophoretic ions are adsorbed onto the first electrode plate. The internal channel of the device is opened, and no electrophoretic ions are suspended at the position where the first area is located. The entire device appears in a transparent state, realizing the function of light transmission. The black state shown in this embodiment is achieved by the suspension of black electrophoretic ions. When the black state time is required to be high, the device can achieve the black state without powering on, which is more energy-saving.

As shown in FIG. 1 , FIG. 4 and FIG. 5 , the first electrode plate is also arranged in the second area of the transparent control device to adsorb black electrophoretic ions in the non-transparent display area, so that the device appears in a transparent state.

Furthermore, it also includes a second electrode plate 12 disposed in the first area 14 , and the second electrode plate 12 is disposed to cover the first electroplating area 14 .

As shown in Figures 1 to 5, this embodiment further provides a second electrode plate in the transparent control device, and the second electrode plate is provided to cover the first area, so that when the electrophoretic ions are adsorbed on the second electrode plate, they can completely cover the first area, so that the first area appears in an opaque black state, and the electrophoretic ions are adsorbed by passing charges with opposite polarity to the electrophoretic ions through the second electrode plate, so that the transparent control device quickly realizes the black state, and the switching speed between the black state and the transparent state is increased, and the response time of the device is faster.

Furthermore, the second electrode plate 12 is a transparent electrode plate.

In this embodiment, a plurality of black electrophoretic ions and two electrode plates are suspended in a transparent control device, and charges with opposite polarities to the electrophoretic ions are passed to different electrode plates so that the black electrophoretic ions are adsorbed on different electrode plates to realize two states: a light-transmitting bright state and an opaque black state. When the opaque black state is displayed, the transparent control device is integrated with the other layers, so that the entire screen appears to be the same black color, and there will be no dark hole at the position of the camera.

The transparent control device in this embodiment includes a first area, which is a position where light needs to be transmitted. A transparent second electrode plate is arranged in the first area, as shown in FIG2. When the transparent display device needs to be displayed in a black state, for example, in the screen-off state, the second electrode plate is charged with a charge opposite to the electrophoretic ions, and the electrophoretic ions are adsorbed on the second electrode plate so that the second electrode plate appears in a light-proof black state, and is integrated with other layers to appear in a black state; as shown in FIG3, when the transparent display device needs to be displayed in a transparent state, the first electrode plate is charged with a charge opposite to the electrophoretic ions, and the electrophoretic ions are adsorbed on the first electrode plate, and no electrophoretic ions are adsorbed on the second electrode plate, and no electrophoretic ions are suspended inside the transparent control device. The first electrode plate is arranged in the second area, that is, a position outside the first area. At this time, there is no adsorption of electrophoretic ions in the first area, and it appears in a transparent state.

Furthermore, the black electrophoretic ions 13 are arranged to at least cover the second electrode plate 12. The transparent control device in this embodiment needs to be displayed in a black state, and the first area must be completely covered to ensure that the first area is completely in a black state. Therefore, the size of the second electrode plate needs to completely cover the first area and be not less than the size of the first area. The black electrophoretic ions are arranged to completely cover the second electrode plate to ensure that when the transparent display device needs to be displayed in a black state, the first area is completely black. In Figures 6 and 7, the black state of the transparent control device is achieved by suspending electrophoretic ions, and more suspended electrophoretic ions are required. In Figures 1 to 5, the black state of the transparent control device is achieved by adsorbing electrophoretic ions on the second electrode plate, and fewer electrophoretic ions are required, and the response time is also shorter. The diameter of the black electrophoretic ions is different, and the number of ions required is also different. For ions with the same diameter, the electrophoretic ion data required by the devices shown in Figures 1 and 5 are basically the same. The number of electrophoretic ions required for the device in Figure 4 is 2-3 times that in Figure 1, and the number of electrophoretic ions required for the device in Figure 6 is 5-10 times that in Figure 1.

Furthermore, the second electrode plate 12 is ITO (Indium Tin Oxide) conductive glass or IZO conductive glass. In this embodiment, the second electrode plate 12 is configured as a transparent conductive electrode, and can be made of ITO or IZO material.

Furthermore, the second electrode plate 12 is specifically arranged at the top or bottom of the transparent control device 1. In this embodiment, the setting position of the second electrode plate can be adjusted, and it can be arranged at the top or the bottom, as shown in Figure 1 or Figure 4. In Figure 1, the second electrode plate is arranged at the bottom of the transparent control device, and in Figure 4, the second electrode plate is arranged at the top of the transparent control device. When the device is required to be in a black state, it is only necessary to energize the second electrode plate so that the electrophoretic ions are adsorbed on the second electrode plate and completely cover the second electrode plate. When the device is required to be in a bright state, the first electrode plate is energized so that all the electrophoretic ions are adsorbed on the first electrode plate, and no electrophoretic ions are suspended inside the transparent control device.

Furthermore, the first electrode plate 11 and the second electrode plate 12 are arranged opposite to each other, or the first electrode plate 11 and the second electrode plate 12 are located in the same plane.

In this embodiment, the first electrode plate is arranged in the second area, and its setting position can be adjusted. As shown in Figures 1, 4 and 5, the first electrode plate is arranged at different positions to adsorb electrophoretic ions so that the device is transparent. In Figures 1 and 4, the first electrode plate and the second electrode plate are arranged relative to each other, and the positions of electrophoretic ion adsorption are different. According to the actual size of the transparent control device and other conditions, the electrophoretic ions are selected to be adsorbed horizontally on the first electrode plate or vertically on the first electrode plate. In this method, the movement path of the electrophoretic ions is shorter, the dark state or bright state response time required to be achieved after power is turned on is short, and the reaction is faster; as shown in Figure 5, the first electrode plate can also be arranged on the same plane as the second electrode plate. In this method, only one layer of electrode plates needs to be set, and one layer of electrode plates is distinguished, and charges of different polarities are added to achieve the adsorption of electrophoretic ions at different positions. The structure is relatively simple, and the process is simple and uncomplicated.

Furthermore, the first electrode plate 11 includes two oppositely disposed parts, which are respectively disposed on two sides of the first region 14 .

In this embodiment, it is necessary to make the transparent display device appear in a black state when the camera is not in use, and the second electrode plate is powered on so that the electrophoretic ions are adsorbed on the second electrode plate. However, when the black state takes a long time, for example, when it is used as a camera light-transmitting structure, the camera is mostly not in use, and the mobile phone screen is off for a long time, so more suspended electrophoretic ions can be set in the transparent control device. As shown in Figure 4, the electrophoretic ions are randomly distributed in the device in the non-powered state, so that the entire transparent control device appears in a black state, which can achieve the purpose of appearing in a black state when not powered on, and achieve the purpose of power saving; further, there are more electrophoretic ions suspended in the transparent control device. When the device needs to reach a transparent state, all the electrophoretic ions need to be adsorbed on the first electrode plate, so the first electrode plate is set to two opposite parts, which are placed on both sides of the first area, and the adsorption area of the first electrode plate is increased, so that the suspended electric further, the second electrode plate is powered on with a low-frequency pulse voltage. In this embodiment, the second electrode plate is powered on to adsorb the electrophoretic ions, so that the transparent control device appears in a black state. In order to save electric energy and reduce power consumption, the second electrode plate is powered on with a low-frequency pulse voltage when necessary to keep the device in a black state.

Furthermore, the first electrode plate 11 is a flat electrode plate or a wavy electrode plate. In this embodiment, the first electrode plate adsorbs electrophoretic ions to make the transparent control device transparent, wherein all electrophoretic ions need to be adsorbed, and the first electrode plate adsorbs more electrophoretic ions, so the first electrode plate can be set as a wavy plate with a larger area to increase the adsorption area.

As shown in FIG. 8 , this embodiment further provides a display screen, comprising the transparent control device 1 mentioned above, and the transparent control device 1 is arranged at the opening position of the camera 2 .

In this embodiment, the transparent control device is applied to the display screen and is set at the camera opening position. When the camera is not in use, the transparent control device appears black and blends in with the black on the screen, so that the entire screen appears the same black, and no dark holes appear on the screen.

Among them, the display screen includes an orientation layer 3, a backplane layer 4 is provided on the orientation layer 3, a light-emitting layer 5 and other packaging materials are provided on the backplane layer 4, a camera through hole is opened on the orientation layer 3, the backplane layer 4, the light-emitting layer 5 and other packaging materials, and the transparent control device 1 is installed in the through hole, a touch layer is arranged above the transparent control device 1, and an under-screen camera 2 is installed below.

Furthermore, the first area of the transparent control device 1 corresponds to the camera opening position.

The above-mentioned transparency control device is installed at a position where the camera is facing the screen opening, and the first area corresponds to the opening position, so as to realize the switching between the transparent light-transmitting state and the black state of the opening position, and the method is simple.

The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims (7)

1. A transparent control device, characterized in that it comprises a plurality of black electrophoretic ions suspended in the transparent control device and a first electrode plate arranged in the transparent control device, The transparent control device includes a first area and a second area, the first electrode plate is arranged in the second area, the first area is made transparent by the adsorption of the black electrophoretic ions by the first electrode plate, and the first area is made opaque by the black electrophoretic ions covering the first area; It also includes a second electrode plate arranged in the first area, the second electrode plate is arranged to cover the first area, the second electrode plate is a transparent electrode plate, the first electrode plate and the second electrode plate are located in the same plane, or the first electrode plate and the second electrode plate are arranged opposite to each other. 2 . The transparent control device according to claim 1 , wherein the second electrode plate is ITO conductive glass or IZO conductive glass. 3 . 3 . The transparent control device according to claim 1 , wherein the second electrode plate is disposed on the top or bottom of the transparent control device. 4 . 4 . The transparent control device according to claim 1 , wherein the first electrode plate comprises two oppositely disposed parts, which are respectively disposed on two sides of the first region. 5 . The transparent control device according to claim 4 , wherein the first electrode plate is a planar electrode plate or a wavy electrode plate. 6. A display screen, characterized in that it comprises the transparent control device according to any one of claims 1 to 5, wherein the transparent control device is arranged at a camera opening position. 7. The display screen according to claim 6, characterized in that the first area of the transparent control device corresponds to the position of the camera opening.