Display module and display method thereof

Abstract

The invention discloses a display module and a display method thereof. The display module comprises a display panel, the display panel comprises a plurality of pixels arranged in an array along a first direction and a second direction, and each pixel comprises a plurality of sub-pixels with different light-emitting colors; the visual angle control box is positioned on the light emitting surface of the display panel; the visual angle control box comprises a plurality of dimming units, and each dimming unit is used for adjusting the light emitting direction of the pixels collinear in the first direction; orthographic projections of the pixels collinear in the first direction on the visual angle control box are located in the corresponding dimming units; conductive liquid is sealed in the dimming unit, and when a preset electric field is loaded, the first surface of the conductive liquid is inclined relative to the light emitting surface of the display panel; wherein the first surface is the surface, away from the display panel, of the conductive liquid; in the double-view-angle display mode, the inclination directions of the first surfaces of the conductive liquids in the two adjacent dimming units relative to the light emitting surface of the display panel are opposite. According to the invention, different pictures can be displayed under double viewing angles.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and particularly to a display module and a display method thereof. Background Art

[0002] With the progress of display technologies, display modules are more and more widely used, and correspondingly, the requirements for display modules are also getting higher and higher.

[0003] In the related art, a display module can only display a picture within a single viewing angle at the same time, and cannot display different pictures separately in a dual-viewing angle, which limits the further application of the display module. Summary of the Invention

[0004] The present invention provides a display module and a display method thereof, which can display different pictures in a dual-viewing angle.

[0005] According to one aspect of the present invention, a display module is provided. The display module includes:

[0006] A display panel, the display panel includes a plurality of pixels arranged in an array along a first direction and a second direction, and each pixel includes a plurality of sub-pixels with different light-emitting colors;

[0007] A viewing angle control box, located on the light-emitting surface of the display panel; the viewing angle control box includes a plurality of dimming units, and each dimming unit is used to adjust the light-emitting direction of the pixels collinear along the first direction; wherein, the orthographic projection of the pixels collinear along the first direction on the viewing angle control box is located within the corresponding dimming unit; the dimming unit is sealed with a conductive liquid, and when a preset electric field is applied, a first surface of the conductive liquid is inclined relative to the light-emitting surface of the display panel; wherein, the first surface is the surface of the conductive liquid away from the display panel;

[0008] In the dual-viewing angle display mode, the inclination directions of the first surfaces of the conductive liquid in two adjacent dimming units relative to the light-emitting surface of the display panel are opposite.

[0009] Optionally, the dimming unit includes a first substrate and a second substrate arranged oppositely, and the first substrate is located on the side of the second substrate close to the display panel;

[0010] The conductive liquid and a non-conductive liquid are arranged between the first substrate and the second substrate, and the conductive liquid is arranged close to the first substrate; the conductive liquids corresponding to different dimming units are isolated from each other.

[0011] Optionally, the sub-pixels of different emission colors in the pixel are arranged along the second direction; among the pixels collinear along the first direction, the sub-pixels of the same emission color are collinear along the first direction; in the dual-view display mode, the first surface of the conductive liquid is axially inclined along the first direction with respect to the light-emitting surface of the display panel; and the inclination directions of the first surfaces of the conductive liquid in two adjacent dimming units are opposite.

[0012] Optionally, retaining walls are provided around the dimming unit; the dimming unit includes a first electrode and a second electrode respectively disposed on the side surfaces of the retaining walls along the second direction.

[0013] Alternatively, the dimming unit includes a plurality of first sub-dimming units, and each first sub-dimming unit is configured to adjust the light-emitting direction of the sub-pixels collinear along the first direction; wherein, the orthographic projections of the sub-pixels collinear along the first direction on the view control box are located within the corresponding first sub-dimming units; retaining walls are provided around the first sub-dimming units; the first sub-dimming units further include a first electrode and a second electrode respectively disposed on the side surfaces of the retaining walls on both sides of the first sub-dimming unit along the second direction.

[0014] Alternatively, the dimming unit includes a plurality of second sub-dimming units, and each second sub-dimming unit is configured to adjust the light-emitting direction of one sub-pixel; the orthographic projection of the sub-pixel on the view control box is located within the corresponding second sub-dimming unit; retaining walls are provided around the second sub-dimming units; along the second direction, the second sub-dimming units further include a first electrode and a second electrode respectively disposed on the side surfaces of the retaining walls on both sides of the second sub-dimming unit along the second direction.

[0015] Optionally, the display module further includes a first driving chip and a second driving chip; the first direction is the column direction, the first driving chip is configured to provide data signals for the pixels in odd columns, and the second driving chip is configured to provide data signals for the pixels in even columns.

[0016] In the dual-view display mode, the first driving chip and the second driving chip respectively transmit the data signals corresponding to different pictures.

[0017] Optionally, the sub-pixels of different emission colors in the pixel are arranged along the first direction; among the pixels collinear along the second direction, the sub-pixels of the same emission color are collinear along the second direction; in the dual-view display mode, the first surface of the conductive liquid is axially inclined along the first direction with respect to the light-emitting surface of the display panel; and the inclination directions of the first surfaces of the conductive liquid in two adjacent dimming units are opposite.

[0018] Optionally, along the second direction, retaining walls are provided around the dimming unit; the dimming unit includes a first electrode and a second electrode respectively disposed on the side surfaces of the retaining walls along the second direction;

[0019] Alternatively, the dimming unit includes a plurality of third sub-dimming units, each of the third sub-dimming units being configured to adjust the light-emitting direction of one of the pixels; the orthographic projection of the pixel on the viewing angle control box is located within the corresponding third sub-dimming unit; retaining walls are provided around the third sub-dimming unit; along the second direction, the third sub-dimming unit further includes a first electrode and a second electrode respectively disposed on the side surfaces of the retaining walls on both sides of the third sub-dimming unit along the second direction;

[0020] Alternatively, the dimming unit includes a plurality of fourth sub-dimming units, each of the fourth sub-dimming units being configured to adjust the light-emitting direction of one of the sub-pixels; the orthographic projection of the sub-pixel on the viewing angle control box is located within the corresponding fourth sub-dimming unit; retaining walls are provided around the fourth sub-dimming unit; along the second direction, the fourth sub-dimming unit further includes a first electrode and a second electrode respectively disposed on the side surfaces of the retaining walls on both sides of the fourth sub-dimming unit along the second direction.

[0021] Optionally, the display panel includes a backlight and a liquid crystal cell;

[0022] The liquid crystal cell is located between the backlight and the viewing angle control box.

[0023] According to another aspect of the present invention, there is provided a display method for a display module, the display module being the display module as described above;

[0024] The display method includes:

[0025] In the dual-view display mode, controlling the first surface of the conductive liquid in two adjacent dimming units to be inclined in opposite directions with respect to the light-emitting surface of the display panel.

[0026] Optionally, the display method further includes:

[0027] In the front-view display mode, controlling the first surface of the conductive liquid in the dimming unit to be parallel to the light-emitting surface of the display panel.

[0028] The technical solution of the embodiment of the present invention adopts a display module including a display panel. The display panel includes a plurality of pixels arranged in an array along a first direction and a second direction. Each pixel includes a plurality of sub-pixels with different emission colors; a viewing angle control box located on the light-emitting surface of the display panel; the viewing angle control box includes a plurality of dimming units, and each dimming unit is used to adjust the light-emitting direction of the pixels collinear along the first direction; wherein, the orthographic projection of the pixels collinear along the first direction on the viewing angle control box is located within the corresponding dimming unit; a conductive liquid is sealed in the dimming unit, and when a preset electric field is applied, the first surface of the conductive liquid is inclined relative to the light-emitting surface of the display panel; wherein, the first surface is the surface of the conductive liquid away from the display panel; in the dual-view display mode, the inclination directions of the first surfaces of the conductive liquid in two adjacent dimming units relative to the light-emitting surface of the display panel are opposite. By providing a dimming unit with a conductive liquid, applying different electric fields to the conductive liquid can control the inclination direction of the first surface of the conductive liquid in different directions, so that the display module can simultaneously display two different pictures at different viewing angles.

[0029] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 It is a schematic structural diagram of a display module provided by an embodiment of the present invention;

[0032] Figure 2 It is a top view of a display module provided by an embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the principle of a conductive liquid dimming towards a first viewing angle provided by an embodiment of the present invention;

[0034] Figure 4 It is a schematic diagram of the principle of a conductive liquid dimming towards a second viewing angle provided by an embodiment of the present invention;

[0035] Figure 5 It is a schematic diagram of the initial state of a conductive liquid provided by an embodiment of the present invention;

[0036] Figure 6 It is a top view of another display module provided by an embodiment of the present invention;

[0037] Figure 7 The top view of another display module provided by an embodiment of the present invention;

[0038] Figure 8 The top view of another display module provided by an embodiment of the present invention;

[0039] Figure 9 The top view of another display module provided by an embodiment of the present invention;

[0040] Figure 10 The top view of another display module provided by an embodiment of the present invention;

[0041] Figure 11 The top view of another display module provided by an embodiment of the present invention;

[0042] Figure 12 The flowchart of a display method of a display module provided by an embodiment of the present invention;

[0043] Figure 13 The structural schematic diagram of a display device provided by an embodiment of the present invention. Detailed implementation manners

[0044] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0046] Figure 1 The structural schematic diagram of a display module provided by an embodiment of the present invention, Figure 2 The top view of a display module provided by an embodiment of the present invention, referenceFigure 1 and Figure 2 。The display module includes a display panel 1 and a viewing angle control box 2; the display panel 1 includes a plurality of pixels PX arranged in an array along a first direction X and a second direction Y, and each pixel PX includes a plurality of sub-pixels SPX with different light-emitting colors. The viewing angle control box 2 is located on the light-emitting surface of the display panel 1; the viewing angle control box 2 includes a plurality of dimming units 2A, and each dimming unit 2A is used to adjust the light-emitting direction of the pixels PX collinear along the first direction X; wherein, the orthographic projection of the pixels PX collinear along the first direction X on the viewing angle control box 2 is located within the corresponding dimming unit 2A; a conductive liquid 23 is sealed in the dimming unit 2A, and when a preset electric field is applied, the first surface of the conductive liquid 23 is inclined relative to the light-emitting surface of the display panel 1; wherein, the first surface of the conductive liquid 23 is the surface of the conductive liquid away from the display panel 1. In the dual-view display mode, the inclination directions of the first surfaces of the conductive liquid 23 in two adjacent dimming units 2A relative to the light-emitting surface of the display panel are opposite.

[0047] Specifically, the display module of this embodiment can display two different images simultaneously, and different images can be seen from different viewing angles. The pixels PX in the display module can achieve full-color display, and the pixels PX achieve full-color display through the brightness mixing of sub-pixels SPX with different light-emitting colors. Each pixel PX can include three sub-pixels: a first-color sub-pixel, a second-color sub-pixel, and a third-color sub-pixel. The light-emitting color of the first-color sub-pixel can be red, the light-emitting color of the second-color sub-pixel can be green, and the light-emitting color of the third-color sub-pixel can be blue. In this text, the first-color sub-pixel is marked as R, the second-color sub-pixel is marked as G, and the third-color sub-pixel is marked as B.

[0048] The pixels PX in the display panel 1 are arranged in an array, and one of the first direction X and the second direction Y is the column direction, and the other is the row direction. For ease of understanding, this embodiment is described with the first direction X as the column direction.

[0049] In the dual-view display mode, that is, when a dual-view display screen is required, a column of pixels PX corresponding to two adjacent dimming units 2A displays content of different screens. For example, the content to be displayed in the first view is navigation content, and the content to be displayed in the second view is video content. Then, the pixels PX in the odd-numbered columns can be controlled to display the screen corresponding to the navigation content, and the pixels PX in the even-numbered columns can be controlled to display the video screen. Further, the light-emitting directions of the dimming units 2A corresponding to the pixels PX in the odd-numbered columns and the dimming units 2A corresponding to the pixels PX in the even-numbered columns are controlled to be different. For example, the light-emitting direction of one of them is the positive light-emitting direction and is deflected to the left, and the light-emitting direction of the other is the positive light-emitting direction and is deflected to the right. At this time, different views correspond to the left and right sides of the display module, and users on the left and right sides of the display module will see different display contents, thereby realizing dual-view display. Among them, the pixels in the odd-numbered columns display one picture, and the pixels in the even-numbered columns display another picture. Of course, it should be noted that the left and right described in this article are only used to distinguish different directions. In some embodiments, as Figure 2 shown, the view control box 2 can also control the light-emitting direction of the pixels PX in the odd-numbered columns and one of the light-emitting directions of the pixels PX in the even-numbered columns to deflect Figure 1 upward as shown in Figure 1 and the other to deflect

[0050] downward as shown in Figures 3 to 5 . Thus, users on the upper and lower sides of the display module will see different display contents, thereby realizing dual-view display. Figure 3 FIG. Figure 4 is a schematic diagram of the principle of the conductive liquid dimming toward the first view provided by an embodiment of the present invention, Figure 5 FIG.

[0051] is a schematic diagram of the initial state of the conductive liquid provided by an embodiment of the present invention. The conductive liquid includes opposite first surface 231 and second surface 232, and the first surface 231 is the surface away from the display panel 1. The second surface 232 is the surface close to the display panel 1. The second surface 232 is always parallel to the light-emitting surface of the display panel 1. In the initial state, that is, when no electric field is applied to the conductive liquid, the first surface 231 is parallel to the second surface 232, and the light emitted by the display panel 1 will be perpendicularly emitted to the outside of the display module. At this time, the display module is in the positive-view display mode. When a preset electric field is applied to both ends of the conductive liquid, the first surface 231 of the conductive liquid is inclined; applying different electric fields will cause the first surface 231 of the conductive liquid to be inclined in different directions. Thus, the inclination direction of the first surface 231 can be controlled by applying different electric fields to the conductive liquid, and further the light-emitting direction of this column of pixels can be controlled to realize dual-view display.

[0051] The technical solution of this embodiment adopts a display module including a display panel. The display panel includes a plurality of pixels arranged in an array along a first direction and a second direction. Each pixel includes a plurality of sub-pixels with different light-emitting colors; a viewing angle control box located on the light-emitting surface of the display panel; the viewing angle control box includes a plurality of dimming units, and each dimming unit is used to adjust the light-emitting direction of the pixels collinear along the first direction; wherein, the orthographic projection of the pixels collinear along the first direction on the viewing angle control box is located within the corresponding dimming unit; a conductive liquid is sealed in the dimming unit, and when a preset electric field is applied, the first surface of the conductive liquid is inclined relative to the light-emitting surface of the display panel; wherein, the first surface is the surface of the conductive liquid away from the display panel; in the dual-view display mode, the inclination directions of the first surfaces of the conductive liquids in two adjacent dimming units are opposite to each other relative to the light-emitting surface of the display panel. By providing dimming units with conductive liquid, applying different electric fields to the conductive liquid can control the inclination direction of the first surface of the conductive liquid, so that the display module can simultaneously display two different images at different viewing angles.

[0052] It should be noted that the viewing angle mentioned above can be understood as the optimal viewing angle. The optimal viewing angle is the direction in which the light emitted directly from the display panel 1 is emitted to the outside of the display module after being dimmed by the dimming unit. It can be understood that in the dual-view display mode, the resolution of each display image is one-half of the resolution of the display module.

[0053] Optionally, continue to refer to Figures 1 to 5 , the dimming unit 2A includes a first substrate 21 and a second substrate 22 arranged opposite to each other. The first substrate 21 is located on the side of the second substrate 22 close to the display panel 1; a conductive liquid 23 and a non-conductive liquid 24 are provided between the first substrate 21 and the second substrate 22; the conductive liquid 23 is provided close to the first substrate 21; the conductive liquids 23 corresponding to different dimming units 2A are isolated from each other.

[0054] Specifically, both the first substrate 21 and the second substrate 22 are transparent substrates. The non-conductive liquid 24 can be non-conductive silicone oil, and the refractive index n1 of the non-conductive silicone oil is 1.9, and the density ρ1 is 1.2 g / cm 3 . The conductive liquid 23 is, for example, composed of a copolymer PMMA of methyl methacrylate and glycidyl methacrylate. The refractive index n₂ of the conductive liquid 23 is 1.4, and the density p1 is 1.5 g / cm 3 .

[0055] The conductive liquid 23 is in contact with the non-conductive liquid 24, and the density of the non-conductive liquid 24 is less than that of the conductive liquid 23. According to the electro-wetting principle, by adjusting the electric field strength applied to the conductive liquid 23, the surface tension of the conductive liquid can be changed, thereby changing the water droplet angle on the surface of the conductive liquid 23, that is, the contact angle between the conductive liquid 23 and the non-conductive liquid 24 changes, and finally the first surface tilts. In some embodiments, the direction of the electric field applied to the conductive liquid 23 is parallel to the light-emitting surface of the display panel 1. That is to say, electrodes can be arranged on both sides of the conductive liquid 23 along the first direction or the second direction, so that the direction of the electric field applied to the conductive liquid 23 is parallel to the light-emitting surface of the display panel 1. When the direction of the electric field is opposite, the tilting direction of the first surface 231 is also opposite. The preset electric field can be a high-voltage electric field. For example, when the electric field strength is 4V and the direction of the electric field is different, the tilting direction of the first surface 231 is different.

[0056] Optionally, in some embodiments, the non-conductive liquids corresponding to different dimming units 2A can be isolated or connected.

[0057] Optionally, in the front view display mode, no electric field is applied to the conductive liquid 23, and at this time the conductive liquid 23 is in Figure 5 the initial state shown.

[0058] Optionally, as Figure 2 shown, the sub-pixels SPX of different light-emitting colors in the pixel PX are arranged along the second direction Y. Among the pixels collinear along the first direction X, the sub-pixels SPX of the same light-emitting color are collinear along the first direction X; in the dual-view display mode, the first surface 231 of the conductive liquid along the axis in the first direction X is inclined to the light-emitting surface of the display panel 1, and the tilting directions of the first surfaces of the conductive liquid in two adjacent dimming units 2A are opposite.

[0059] Specifically, as Figure 2 shown, the first direction X in this embodiment can be understood as the column direction, and the second direction Y can be understood as the row direction. In the dual-view display mode, the first surface 231 of the conductive liquid corresponding to the same column of pixels PX along the axis in the first direction X is inclined to the light-emitting surface of the display panel 1; that is to say, the axis extends along the first direction X. In the same dimming unit 2A, in the cross-section along the second direction Y and the thickness direction of the display module, the distance between the first surface 231 of the conductive liquid 23 and the display panel 1 is different at different positions; while in the cross-section along the first direction X and the thickness direction of the display module, the distance between the first surface 231 of the conductive liquid 23 and the display panel 1 is the same at different positions. Or in other words, in Figure 2In the structure shown, each dimming unit 2A can modulate the light-emitting direction of the corresponding column of pixels PX to the left or right. And in the dual-view display mode, after the light-emitting directions of two adjacent columns of pixels PX are modulated by the dimming unit 2A, one faces the left side and the other faces the right side.

[0060] Optionally, continue to refer to Figures 2 to 5 . In some embodiments, light-blocking walls 25 are provided around the dimming unit 2A; the dimming unit 2A includes a first electrode 26 and a second electrode 27 respectively disposed on the side surfaces of the light-blocking walls 25 along the second direction Y.

[0061] Specifically, the first electrode 26 can be a transparent electrode, such as ITO, etc.; the second electrode 27 can be a transparent electrode, such as ITO, etc. The light-blocking wall 25 can be an opaque structure, for example, a black matrix structure can be adopted. The light-blocking wall 25 can penetrate the area between the first substrate 21 and the second substrate 22, that is to say, one end of the light-blocking wall 25 is in contact with the first substrate 21, and the other end is in contact with the second substrate 22; at this time, the non-conductive liquids 24 of different dimming units 2A are isolated from each other. In some other embodiments, the thickness of the light-blocking wall 25 can be less than the distance between the first substrate 21 and the second substrate 22, that is to say, one end of the light-blocking wall 25 is in contact with the first substrate 21, and the other end is not in contact with the second substrate 22. At this time, the non-conductive liquids 24 corresponding to all the dimming units 2A are connected. In this embodiment, the light-blocking wall 25 is set as an opaque structure, which can improve the problem of pixel light crosstalk between adjacent two columns.

[0062] The thickness of the first electrode 21 can be less than the thickness of the light-blocking wall 25, and the thickness of the second electrode 22 can be less than the thickness of the light-blocking wall 25. The thickness of the first electrode 26 can be the same as the thickness of the second electrode 27. It should be noted that the thickness of the first electrode 26 described in this embodiment refers to the dimension of the first electrode 26 along the thickness direction of the display module, and the thickness of the second electrode 27 refers to the dimension of the second electrode 27 along the thickness direction of the display module.

[0063] Optionally, the orthographic projection of the pixels PX collinear along the first direction X on the viewing angle control box 2 is located in the conductive liquid 23 of the corresponding dimming unit 2A. So that all the light emitted directly from the pixels PX can be incident on the conductive liquid 23 and be modulated by the conductive liquid 23, avoiding the problem of light crosstalk caused by some light not being modulated by the conductive liquid.

[0064] Optionally, the light-blocking walls 25 between two adjacent dimming units 2A are shared.

[0065] Optionally, the same dimming unit 2A only includes one first electrode 26 and one second electrode 27. It is more convenient for the wiring of the display module, that is, it is convenient to arrange the signal lines that provide signals for the first electrode 26 and the second electrode 27 in the display module.

[0066] It should be noted that in this embodiment, electrodes are only provided on both sides of each dimming unit 2A with respect to the pixel PX. That is, in the dual-view display mode, in the same dimming unit, in the cross-section along the second direction Y and the thickness direction of the display module, the distance between the first surface of the conductive liquid and the display panel changes in a gradient manner.

[0067] Optionally, Figure 6 is a top view of another display module provided by an embodiment of the present invention. Refer to Figure 6 . In this embodiment, the dimming unit 2A includes a plurality of first sub-dimming units 2A1. Each first sub-dimming unit 2A1 is configured to adjust the light-emitting direction of sub-pixels SPX collinear along the first direction X. Among them, the orthographic projection of the sub-pixels collinear along the first direction X on the viewing angle control box is located within the corresponding first sub-dimming unit 2A1. A retaining wall 25 is provided around the first sub-dimming unit 21A. The first sub-dimming unit 2A1 further includes a first electrode 26 and a second electrode 27 respectively disposed on the side surfaces of the retaining wall 25 on both sides of the first sub-dimming unit 2A1 along the second direction Y.

[0068] Specifically, different from the above embodiment, in this embodiment, each column of sub-pixels corresponds to a first sub-dimming unit 2A1. The conductive liquids 23 in different first sub-dimming units 2A1 are isolated from each other. While the conductive liquids in the same first sub-dimming unit 2A1 are connected. With such a setting, along the second direction Y, the distance between the first electrode 26 and the second electrode 27 on both sides of the conductive liquid 23 is small, which can ensure that the first surface of the conductive liquid 23 can be tilted according to the applied electric field. In addition, retaining walls 25 are provided on both sides of each first sub-dimming unit 2A1, which can improve the light crosstalk problem between adjacent columns of sub-pixels SPX. In this embodiment, each column of sub-pixels corresponds to a first sub-dimming unit 2A1. It can be understood that in the dual-view display mode, in the same dimming unit, the tilting directions of the conductive liquids in the first sub-dimming units 2A1 corresponding to different sub-pixels are the same.

[0069] Optionally, in the above embodiment, the retaining walls between different first sub-dimming units 2A1 are shared.

[0070] Optionally, Figure 7 is a top view of another display module provided by an embodiment of the present invention. Refer to Figure 7。The dimming unit 2A includes a plurality of second sub-dimming units 2A2, and each second sub-dimming unit 2A2 is configured to adjust the light-emitting direction of a sub-pixel; the orthographic projection of the sub-pixel SPX on the viewing angle control box is located within the corresponding second sub-dimming unit 2A2; retaining walls 25 are provided around the second sub-dimming unit 2A2; along the second direction Y, the second sub-dimming unit 2A2 further includes a first electrode 26 and a second electrode 27 respectively disposed on the side surfaces of the retaining walls 25 on both sides of the second sub-dimming unit 2A2 along the second direction Y.

[0071] Specifically, different from the above embodiments, in this embodiment, each sub-pixel SPX corresponds to a second sub-dimming unit 2A2. The conductive liquids 23 in different second sub-dimming units 2A2 are isolated from each other. With such an arrangement, along the second direction Y, the distance between the first electrode 26 and the second electrode 27 on both sides of the conductive liquid 23 is small, which can ensure that the first surface of the conductive liquid 23 can be tilted according to the applied electric field. In addition, retaining walls 25 are provided on all four sides of each second sub-dimming unit 2A2, which can improve the light crosstalk problem between any two adjacent sub-pixels SPX. It can be understood that in the dual-view display mode, in the same dimming unit, the tilting directions of the conductive liquids in the second sub-dimming units 2A2 corresponding to different sub-pixels are the same.

[0072] Optionally, in the above embodiments, the retaining walls between different second sub-dimming units 2A2 are shared.

[0073] Optionally, Figure 8 A top view of another display module provided by an embodiment of the present invention, refer to Figure 8 The display module further includes a first driving chip 71 and a second driving chip 72; the first direction X is the column direction, and the second direction Y is the row direction. The first driving chip 71 is configured to provide data signals for the pixels PX in odd columns; the second driving chip 72 is configured to provide data signals for the pixels PX in even columns. In the dual-view display mode, the first driving chip 71 and the second driving chip 72 respectively transmit data signals corresponding to different pictures.

[0074] Specifically, each sub-pixel can be connected to a pixel driving circuit, and the driving chip can provide data signals for the pixel driving circuit, thereby driving the sub-pixel to emit light. The sub-pixels in the same column are electrically connected to the corresponding driving chip through the same data line; the sub-pixels in different columns are electrically connected to the corresponding driving chip through different data lines. In this embodiment, in the dual-view display mode, the two driving chips respectively transmit the display pictures corresponding to different viewing angles. For example, one driving chip transmits the data signals corresponding to the navigation picture, and the other driving chip transmits the data signals corresponding to the video picture. By providing two driving chips, there is no need to process the two pictures that need to be displayed in different viewing angles, which is beneficial to simplifying the display process and improving the real-time performance of the display.

[0075] Optionally, referring to Figure 8 Along the first direction X, the first driving chip 71 and the second driving chip 72 can be respectively arranged on both sides of a plurality of pixels arranged in an array. Or in other words, the display panel includes a display area and a non-display area surrounding the display area, the pixels are arranged in the display area, and the first driving chip 71 and the second driving chip 72 are arranged in the non-display areas on different sides of the display area along the first direction X.

[0076] Optionally, Figure 9 Another top view of the display module provided by the embodiment of the present invention, referring to Figure 9 In this embodiment, the sub-pixels SPX of different light-emitting colors in each pixel PX are arranged along the first direction X; among the pixels collinear along the second direction Y, the sub-pixels of the same light-emitting color are collinear along the second direction Y; in the dual-view display mode, the first surface of the conductive liquid is inclined with respect to the light-emitting surface of the display panel along the axial direction of the first direction X; and the inclination directions of the first surfaces of the conductive liquid in two adjacent dimming units are opposite.

[0077] Specifically, in this embodiment, the first direction X is the row direction, and the second direction Y is the column direction. Combining Figure 9 and Figure 1 , in the dual-view display mode, the first surface 231 of the conductive liquid 23 corresponding to the pixels PX in the same column is inclined with respect to the light-emitting surface of the display panel 1 along the axis of the first direction X; that is to say, the axis extends along the first direction X. In the same dimming unit 2A, along the cross-section of the second direction Y and the thickness direction of the display module, the distance between the first surface 231 of the conductive liquid 23 and the display panel 1 is different at different positions; while along the cross-section of the first direction X and the thickness direction of the display module, the distance between the first surface 231 of the conductive liquid 23 and the display panel 1 is the same at different positions. Or in other words, in the Figure 9 structure shown, each dimming unit 2A can modulate the light-emitting direction of the corresponding row of pixels PX upward or downward. And in the dual-view display mode, after the light-emitting directions of two adjacent rows of pixels PX are modulated by the dimming unit 2A, one is directed to the upper left and the other is directed to the lower side.

[0078] Optionally, continuing to refer to Figure 9 Along the second direction Y, a retaining wall 25 is arranged around the dimming unit 2A, and the dimming unit 2A includes a first electrode 26 and a second electrode 27 respectively arranged on the side surfaces of the retaining wall along the second direction Y.

[0079] Specifically, each dimming unit 2A has electrodes disposed only on both sides of the pixel PX. That is, in the dual-view display mode, in the same dimming unit, in the cross-section along the second direction Y and the thickness direction of the display module, the distance between the first surface of the conductive liquid and the display panel varies in a gradient manner. The same dimming unit 2A includes only one first electrode 26 and one second electrode 27. This is more convenient for the wiring of the display module, that is, it is convenient to arrange the signal lines that supply signals to the first electrode 26 and the second electrode 27 in the display module.

[0080] Optionally, Figure 10 is a top view of another display module provided by an embodiment of the present invention, referring to Figure 10 . The dimming unit 2A includes a plurality of third sub-dimming units 2A3, and each third sub-dimming unit 2A3 is used to adjust the light-emitting direction of one pixel PX; the orthographic projection of the pixel PX on the view control box is located within the corresponding third sub-dimming unit 2A3; there are barriers 25 disposed around the third sub-dimming unit 2A3; along the second direction Y, the third sub-dimming unit 2A3 further includes a first electrode 26 and a second electrode 27 respectively disposed on the side surfaces of the barriers 25 on both sides of the third sub-dimming unit along the second direction Y.

[0081] Specifically, different from the above-described embodiment, in this embodiment, each pixel corresponds to one third sub-dimming unit 2A3. The conductive liquids 23 in different third sub-dimming units 2A3 are isolated from each other. And the conductive liquids in the same third sub-dimming unit 2A3 are connected. With such an arrangement, the problem of light crosstalk between adjacent two sub-pixels SPX can be improved. It can be understood that in the dual-view display mode, in the same dimming unit, the inclination directions of the conductive liquids in the third sub-dimming units 2A3 corresponding to different pixels are the same.

[0082] Optionally, in the above-described embodiment, the barriers between different third sub-dimming units 2A3 are shared.

[0083] Optionally, Figure 11 is a top view of another display module provided by an embodiment of the present invention, referring to Figure 11 . The dimming unit 2A includes a plurality of fourth sub-dimming units 2A4, and each fourth sub-dimming unit 2A4 is used to adjust the light-emitting direction of one sub-pixel SPX; the orthographic projection of the sub-pixel on the view control box is located within the corresponding fourth sub-dimming unit 2A4; there are barriers 25 disposed around the fourth sub-dimming unit 2A4; along the second direction Y, the fourth sub-dimming unit 2A4 further includes a first electrode 26 and a second electrode 27 respectively disposed on the side surfaces of the barriers 25 on both sides of the fourth sub-dimming unit 2A4 along the second direction Y.

[0084] Specifically, different from the above embodiments, in this embodiment, each sub-pixel SPX corresponds to a fourth sub-dimming unit 2A4. The conductive liquids 23 in different fourth sub-dimming units 2A4 are isolated from each other. With such a setting, along the second direction Y, the distance between the first electrode 26 and the second electrode 27 on both sides of the conductive liquid 23 is small, which can ensure that the first surface of the conductive liquid 23 can be tilted according to the applied electric field. In addition, retaining walls 25 are provided on all four sides of each fourth sub-dimming unit 2A4, which can improve the problem of light crosstalk between any two adjacent sub-pixels SPX. It can be understood that in the dual-view display mode, in the same dimming unit, the tilting directions of the conductive liquids in the fourth sub-dimming units corresponding to different sub-pixels are the same.

[0085] Optionally, in the above embodiment, the retaining walls between different fourth sub-dimming units are shared.

[0086] Optionally, in some embodiments, the display panel is an actively emitting display panel such as an OLED (Organic Light Emitting Diode) display panel, a MicroLED display panel, or a Mini-LED display panel.

[0087] Optionally, in some embodiments, the display panel is a liquid crystal display panel. As Figure 1 shown, the display panel includes a backlight 12 and a liquid crystal cell 11; the liquid crystal cell 11 is located between the backlight 12 and the viewing angle control box 2.

[0088] Specifically, the specific structure and working principle of the liquid crystal display panel are well known to those skilled in the art and will not be elaborated here.

[0089] Optionally, the display panel 1 and the viewing angle control box 2 can be fixedly connected by an optical adhesive 5.

[0090] Optionally, the display module further includes a cover plate 3 covering the side of the viewing angle control box 2 away from the display panel 1.

[0091] Based on the same inventive concept, the present invention also provides a display method for a display module, as Figure 12 shown, Figure 12 is a flowchart of a display method for a display module provided by an embodiment of the present invention. The display module is the display module provided by any embodiment of the present invention, and the display method includes:

[0092] Step S101, in the dual-view display mode, control the first surfaces of the conductive liquids in two adjacent dimming units to tilt in opposite directions with respect to the light-emitting surface of the display panel.

[0093] Specifically, the tilt direction of the first surface can be controlled by controlling the electric field applied to the conductive liquid. Different data signals corresponding to different pictures are provided for the pixels corresponding to two adjacent dimming units, so that the display module can display two pictures simultaneously, and the viewing angles of the two pictures are different, that is, dual-view display of the display module is realized.

[0094] The display method of the display module in this embodiment enables the display module to achieve dual-view display.

[0095] Optionally, the display method further includes: in the front-view display mode, controlling the first surface of the conductive liquid in the dimming unit to be parallel to the light-emitting surface of the display panel. That is to say, an electric field can be not applied to the conductive liquid, so that the display module can be in the front-view display.

[0096] Based on the same inventive concept, the present invention also provides a display device. As Figure 13 shown, Figure 13 is a schematic structural diagram of a display device provided by an embodiment of the present invention. The display device can be an in-vehicle display, a mobile phone, a tablet computer, etc. The display device includes the display module provided by any embodiment of the present invention and has the same beneficial effects, which will not be elaborated herein.

[0097] It should be understood that the various forms of the processes shown above can be used, steps can be reordered, added or deleted. For example, the steps described in the present invention can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, which is not limited herein.

[0098] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A display module, characterized in that, The display module includes: A display panel, the display panel including a plurality of pixels arranged in an array along a first direction and a second direction, each pixel including a plurality of sub-pixels of different light-emitting colors; A viewing angle control box located on the light-emitting surface of the display panel; the viewing angle control box includes a plurality of dimming units, each dimming unit being configured to adjust the light-emitting direction of the pixels collinear along the first direction; wherein, the orthographic projection of the pixels collinear along the first direction on the viewing angle control box is located within the corresponding dimming unit; a conductive liquid is sealed within the dimming unit, and when a preset electric field is applied, a first surface of the conductive liquid is inclined relative to the light-emitting surface of the display panel; wherein, the first surface is the surface of the conductive liquid away from the display panel; In the dual-view display mode, the inclination directions of the first surfaces of the conductive liquid in two adjacent dimming units relative to the light-emitting surface of the display panel are opposite.

2. The display module according to claim 1, wherein The dimming unit includes a first substrate and a second substrate disposed opposite to each other, the first substrate being located on the side of the second substrate closer to the display panel; The conductive liquid and a non-conductive liquid are disposed between the first substrate and the second substrate, the conductive liquid being disposed closer to the first substrate; the conductive liquids corresponding to different dimming units are isolated from each other.

3. The display module according to claim 2, wherein The sub-pixels of different light-emitting colors in the pixel are arranged along the second direction; among the pixels collinear along the first direction, the sub-pixels of the same light-emitting color are collinear along the first direction; in the dual-view display mode, the first surface of the conductive liquid is axially inclined along the first direction relative to the light-emitting surface of the display panel; and the inclination directions of the first surfaces of the conductive liquid in two adjacent dimming units are opposite.

4. The display module according to claim 3, wherein A retaining wall is provided around the dimming unit; the dimming unit includes a first electrode and a second electrode respectively disposed on the side surfaces of the retaining wall along the second direction; Alternatively, the dimming unit includes a plurality of first sub-dimming units, each first sub-dimming unit being configured to adjust the light-emitting direction of the sub-pixels collinear along the first direction; wherein, the orthographic projection of the sub-pixels collinear along the first direction on the viewing angle control box is located within the corresponding first sub-dimming unit; a retaining wall is provided around the first sub-dimming unit; the first sub-dimming unit further includes a first electrode and a second electrode respectively disposed on the side surfaces of the retaining wall on both sides of the first sub-dimming unit along the second direction; Alternatively, the dimming unit includes a plurality of second sub-dimming units, each second sub-dimming unit being configured to adjust the light-emitting direction of one sub-pixel; the orthographic projection of the sub-pixel on the viewing angle control box is located within the corresponding second sub-dimming unit; a retaining wall is provided around the second sub-dimming unit; along the second direction, the second sub-dimming unit further includes a first electrode and a second electrode respectively disposed on the side surfaces of the retaining wall on both sides of the second sub-dimming unit along the second direction.

5. The display module according to claim 3, wherein The display module further includes a first driving chip and a second driving chip; the first direction is the column direction, the first driving chip is configured to provide data signals for the pixels in odd columns, and the second driving chip is configured to provide data signals for the pixels in even columns; In the dual-view display mode, the first driving chip and the second driving chip respectively transmit the data signals corresponding to different pictures.

6. The display module according to claim 2, wherein The sub-pixels of different light-emitting colors in the pixel are arranged along the first direction; among the pixels collinear along the second direction, the sub-pixels of the same light-emitting color are collinear along the second direction; in the dual-view display mode, the first surface of the conductive liquid is inclined along the axial direction of the first direction with respect to the light-emitting surface of the display panel; and the inclination directions of the first surfaces of the conductive liquid in two adjacent dimming units are opposite.

7. The display module according to claim 6, wherein Along the second direction, barriers are provided around the dimming unit; the dimming unit includes a first electrode and a second electrode respectively disposed on the side surfaces of the barriers along the second direction. Alternatively, the dimming unit includes a plurality of third sub-dimming units, each of the third sub-dimming units being configured to adjust the light-emitting direction of one pixel; the orthographic projection of the pixel on the view control box is located within the corresponding third sub-dimming unit; barriers are provided around the third sub-dimming unit; along the second direction, the third sub-dimming unit further includes a first electrode and a second electrode respectively disposed on the side surfaces of the barriers on both sides of the third sub-dimming unit along the second direction. Alternatively, the dimming unit includes a plurality of fourth sub-dimming units, each of the fourth sub-dimming units being configured to adjust the light-emitting direction of one sub-pixel; the orthographic projection of the sub-pixel on the view control box is located within the corresponding fourth sub-dimming unit; barriers are provided around the fourth sub-dimming unit; along the second direction, the fourth sub-dimming unit further includes a first electrode and a second electrode respectively disposed on the side surfaces of the barriers on both sides of the fourth sub-dimming unit along the second direction.

8. The display module according to claim 1, wherein The display panel includes a backlight and a liquid crystal cell; The liquid crystal cell is located between the backlight and the view control box.

9. A display method of a display module, characterized in that, The display module is the display module according to any one of claims 1-7; The display method includes: In the dual-view display mode, controlling the first surfaces of the conductive liquid in two adjacent dimming units to be inclined in opposite directions with respect to the light-emitting surface of the display panel.

10. The display method of the display module according to claim 9, wherein The display method further includes: In the front-view display mode, controlling the first surface of the conductive liquid in the dimming unit to be parallel to the light-emitting surface of the display panel.

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