Multi-view-field display panel and display device

Abstract

The invention discloses a multi-view-field display panel and a display device. The multi-view-field display panel comprises a display substrate, a first grating assembly and a second grating assembly, and the first grating assembly comprises a first substrate, a second substrate, a barrier liquid crystal layer, a plurality of first electrodes and a plurality of second electrodes. The plurality of first electrodes and the plurality of second electrodes are configured to form an electric field for changing at least one of the size and the position of the light-transmitting area of the first grating assembly, and light emitted by the plurality of view field pixels is emitted through the light-transmitting area; the second grating assembly comprises a first lining plate, a second lining plate, a lens liquid crystal layer, a plurality of third electrodes and a plurality of fourth electrodes, and the third electrodes and the fourth electrodes are configured to form an electric field enabling the lens liquid crystal layer to form a plurality of liquid crystal lenses; the plurality of light-transmitting areas and the plurality of liquid crystal lenses are arranged in pairs, and the orthographic projections of the light-transmitting areas and the liquid crystal lenses on the display substrate are at least partially overlapped, so that the light control accuracy can be improved.

Description

Technical Field

[0001] This article relates to but is not limited to the field of display technology, and in particular to a multi-field of view display panel and a display device. Background Art

[0002] With the development of display technology, display technology that enables different images to be viewed on both sides (e.g., left and right sides) of a display screen is increasingly being applied to display devices, which are also called dual-viewing field display devices. Dual-viewing field display devices can better meet users' ever-changing requirements for display technology, and can enable different users to obtain different display information through a display screen, thereby improving the market competitiveness of display devices.

[0003] However, existing large-scale dual-viewing field display devices have problems such as poor light control accuracy and crosstalk between multiple fields of view. Summary of the invention

[0004] The embodiments of the present disclosure provide a multi-field-of-view display panel and a display device, which can improve the light control accuracy of the existing multi-field-of-view display panel and avoid crosstalk between multiple field lights.

[0005] In one aspect, an embodiment of the present disclosure provides a multi-viewing field display panel, comprising: A display substrate including a plurality of viewing field pixels for forming a plurality of viewing fields; A first grating component is located at the light-emitting side of the display substrate, and includes a first substrate, a second substrate, and a barrier liquid crystal layer located between the first substrate and the second substrate; the first grating component also includes a plurality of first electrodes and a plurality of second electrodes, the plurality of first electrodes are located on the first substrate, the plurality of second electrodes are located on the second substrate, the plurality of first electrodes and the plurality of second electrodes are configured to form an electric field that changes at least one of the size and the position of a light-transmitting area of ​​the first grating component, and the light emitted by the plurality of viewing field pixels is emitted through the light-transmitting area; The second grating component is located between the display substrate and the first grating component, and includes a first backing plate, a second backing plate, and a lens liquid crystal layer located between the first backing plate and the second backing plate; the second grating component also includes a plurality of third electrodes and a plurality of fourth electrodes, the plurality of third electrodes are located on the first backing plate, the plurality of fourth electrodes are located on the second backing plate, and the plurality of third electrodes and the plurality of fourth electrodes are configured to form an electric field that causes the lens liquid crystal layer to form a plurality of liquid crystal lenses; the plurality of light-transmitting areas are arranged in pairs with the plurality of liquid crystal lenses, and the light-transmitting areas at least partially overlap with the orthographic projections of the liquid crystal lenses on the plane where the display substrate is located.

[0006] In some exemplary embodiments, the light-transmitting area has a center line extending in a direction perpendicular to the plane where the display substrate is located, and the liquid crystal lens has a center line; the distance between the center line of the light-transmitting area and the center line of the liquid crystal lenses arranged in a pair is greater than or equal to zero and less than or equal to 30% of the radial dimension of the light-transmitting area.

[0007] In some exemplary embodiments, the light-transmitting area has a center line extending in a direction perpendicular to the plane of the display substrate, the liquid crystal lens has a center line, and there is an angle between the center line of the light-transmitting area and the center lines of the liquid crystal lenses arranged in a pair, and the range of the angle is greater than or equal to 0° and less than or equal to 10°.

[0008] In some exemplary embodiments, the display substrate and the first grating assembly have the same refresh rate.

[0009] In some exemplary embodiments, a refresh rate of the display substrate is greater than or equal to 120 Hz.

[0010] In some exemplary embodiments, the display substrate includes a plurality of pixel groups, each pixel group includes N types of field of view pixels arranged in sequence, the nth field of view pixel is used to form an nth field of view, N is an integer greater than or equal to 2, and n is an integer greater than or equal to 1 and less than or equal to N; a plurality of the light-transmitting areas are arranged in groups with a plurality of the pixel groups.

[0011] In some exemplary embodiments, the display substrate includes a plurality of red sub-pixels, a plurality of green sub-pixels, and a plurality of blue sub-pixels, the red sub-pixels are configured to emit red light, the green sub-pixels are configured to emit green light, and the blue sub-pixels are configured to emit blue light; The plurality of red sub-pixels are sequentially arranged along the first direction to form a red sub-pixel row, the plurality of green sub-pixels are sequentially arranged along the first direction to form a green sub-pixel row, and the plurality of blue sub-pixels are sequentially arranged along the first direction to form a blue sub-pixel row; the red sub-pixel row, the green sub-pixel row and the blue sub-pixel row are sequentially arranged alternately along the second direction; or, The plurality of red sub-pixels are sequentially arranged along the second direction to form a red sub-pixel column, the plurality of green sub-pixels are sequentially arranged along the second direction to form a green sub-pixel column, and the plurality of blue sub-pixels are sequentially arranged along the second direction to form a blue sub-pixel column; the red sub-pixel column, the green sub-pixel column, and the blue sub-pixel column are sequentially arranged alternately along the first direction; The N types of viewing field pixels are arranged in sequence along a second direction, the first direction intersects with the second direction, and the plane formed by the first direction is parallel to the plane where the display substrate is located.

[0012] In some exemplary embodiments, the multi-field display panel further includes a spacer layer, wherein the spacer layer is located between the display substrate and the second grating assembly; and a refractive index of the spacer layer ranges from 1.3 to 1.7.

[0013] In some exemplary embodiments, the multi-field display panel further includes an anti-reflection film, wherein the anti-reflection film is located on a side of the first grating component away from the display substrate; a haze of the anti-reflection film ranges from 10% to 50%.

[0014] On the other hand, an embodiment of the present disclosure provides a display device, comprising the multi-field-of-view display panel described in any one of the aforementioned embodiments.

[0015] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0017] Figure 1 is a partial cross-sectional schematic diagram of a multi-viewing field display panel according to an embodiment of the present disclosure; Figure 2A is a schematic plan view of a display substrate of a multi-viewing field display panel according to an embodiment of the present disclosure; Figure 2B is a schematic plan view of a display substrate of a multi-viewing field display panel according to another embodiment of the present disclosure; Figure 3A A cross-sectional view of a second grating assembly of a multi-field display panel according to an embodiment of the present disclosure Figure 1 ; Figure 3B A second cross-sectional schematic diagram of a second grating assembly of a multi-field display panel according to an embodiment of the present disclosure; Figure 4A A cross-sectional view of a first grating component of a multi-field display panel according to an embodiment of the present disclosure Figure 1 ; Figure 4B A second cross-sectional schematic diagram of a first grating assembly of a multi-field display panel according to an embodiment of the present disclosure; Figure 5A is a schematic cross-sectional view of a multi-viewing field display panel in a first moment according to an embodiment of the present disclosure; Figure 5B FIG. 4 is a cross-sectional schematic diagram of a multi-viewing field display panel according to an embodiment of the present disclosure at a second moment. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The embodiments can be implemented in a plurality of different forms. A person of ordinary skill in the art can easily understand the fact that the method and content can be transformed into one or more forms without departing from the purpose and scope of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited to the contents described in the following embodiments. In the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be arbitrarily combined with each other.

[0019] In the drawings, the size of one or more components, the thickness of a layer, or an area is sometimes exaggerated for the sake of clarity. Therefore, one embodiment of the present disclosure is not necessarily limited to the size, and the shape and size of each component in the drawings do not reflect the true proportion. In addition, the drawings schematically show ideal examples, and one embodiment of the present disclosure is not limited to the shapes or values ​​shown in the drawings.

[0020] The ordinal numbers such as "first", "second", and "third" in the present disclosure are provided to avoid confusion of constituent elements, rather than to limit the quantity. The "plurality" in the present disclosure includes two and more than two.

[0021] In the present disclosure, for the sake of convenience, the words and phrases indicating the orientation or positional relationship, such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing the present specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which the constituent elements are described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the situation.

[0022] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate, or the internal communication of two elements. For ordinary technicians in this field, the meanings of the above terms in the present disclosure can be understood according to the circumstances.

[0023] In the present disclosure, a transistor refers to an element including at least three terminals: a gate electrode, a drain electrode, and a source electrode. The transistor has a channel region between a drain electrode (drain electrode terminal, drain region, or drain) and a source electrode (source electrode terminal, source region, or source), and current can flow through the drain electrode, the channel region, and the source electrode. In the present disclosure, the channel region refers to a region through which current mainly flows.

[0024] In the present disclosure, the first electrode may be a drain electrode and the second electrode may be a source electrode, or the first electrode may be a source electrode and the second electrode may be a drain electrode. In the case of using transistors with opposite polarities or when the current direction changes during circuit operation, the functions of the "source electrode" and the "drain electrode" are sometimes interchanged. Therefore, in the present disclosure, the "source electrode" and the "drain electrode" may be interchanged.

[0025] In the present disclosure, "electrical connection" includes the case where components are connected together through an element having some electrical function. There is no particular limitation on the "element having some electrical function" as long as it can transmit electrical signals between connected components. Examples of "element having some electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having one or more functions.

[0026] In the present disclosure, "parallel" means a state where the angle formed by two straight lines is greater than -10° and less than 10°, and therefore, a state where the angle is greater than -5° and less than 5° may be included. In addition, "perpendicular" means a state where the angle formed by two straight lines is greater than 80° and less than 100°, and therefore, a state where the angle is greater than 85° and less than 95° may be included.

[0027] In the present disclosure, "film" and "layer" may be interchanged. For example, "conductive layer" may be replaced with "conductive film" in some cases. Similarly, "insulating film" may be replaced with "insulating layer" in some cases.

[0028] The term "about" in the present disclosure refers to a numerical value that is not strictly limited to allow for process and measurement errors.

[0029] The present disclosure provides a multi-viewing field display panel, including: A display substrate including a plurality of viewing field pixels for forming a plurality of viewing fields; A first grating component is located at the light-emitting side of the display substrate, and includes a first substrate, a second substrate, and a barrier liquid crystal layer located between the first substrate and the second substrate; the first grating component also includes a plurality of first electrodes and a plurality of second electrodes, the plurality of first electrodes are located on the first substrate, the plurality of second electrodes are located on the second substrate, the plurality of first electrodes and the plurality of second electrodes are configured to form an electric field that changes at least one of the size and the position of a light-transmitting area of ​​the first grating component, and the light emitted by the plurality of viewing field pixels is emitted through the light-transmitting area; The second grating component is located between the display substrate and the first grating component, and includes a first backing plate, a second backing plate, and a lens liquid crystal layer located between the first backing plate and the second backing plate; the second grating component also includes a plurality of third electrodes and a plurality of fourth electrodes, the plurality of third electrodes are located on the first backing plate, the plurality of fourth electrodes are located on the second backing plate, and the plurality of third electrodes and the plurality of fourth electrodes are configured to form an electric field that causes the lens liquid crystal layer to form a plurality of liquid crystal lenses; the plurality of light-transmitting areas are arranged in pairs with the plurality of liquid crystal lenses, and the light-transmitting areas at least partially overlap with the orthographic projections of the liquid crystal lenses on the plane where the display substrate is located.

[0030] In the embodiment of the present disclosure, by providing a second grating component, and the liquid crystal lens formed by the second grating component and the light-transmitting area of ​​the first grating component are provided in pairs, the light control accuracy of the multi-field-of-view display panel can be improved, and the liquid crystal lens can be used to avoid mutual crosstalk between lights of different fields of view, thereby improving the display quality of the multi-field-of-view display panel.

[0031] Figure 1 FIG. 1 is a partial cross-sectional schematic diagram of a multi-viewing field display panel according to an embodiment of the present disclosure. Figure 1 As shown, in a direction perpendicular to the plane where the multi-field-of-view display panel is located, the multi-field-of-view display panel may include a display substrate 10 and a first grating component 11 that are stacked. The plane where the multi-field-of-view display panel is located is the same plane as the plane where the display substrate 10 is located, or the plane where the multi-field-of-view display panel is located is parallel to the plane where the display substrate 10 is located. The first grating component 11 is located on the light-emitting side of the display substrate 10, which is the side where the user can view the information displayed on the multi-field-of-view display panel. The display substrate 10 may include a plurality of pixel groups, each pixel group may include N types of field-of-view pixels arranged in sequence, the nth field-of-view pixel is used to form the nth field of view, N is an integer greater than or equal to 2, and n is an integer greater than or equal to 1 and less than or equal to N. As shown in FIG. Figure 1As shown, only four pixel groups are schematically shown, and the pixel groups are shown as dotted boxes. For example, each pixel group includes four field of view pixels arranged in sequence, and the four field of view pixels are first field of view pixels 1, second field of view pixels 2, third field of view pixels 3, and fourth field of view pixels 4. The light emitted by multiple first field of view pixels 1 is used to form a first field of view S1, the light emitted by multiple second field of view pixels 2 is used to form a second field of view S2, the light emitted by multiple third field of view pixels 3 is used to form a third field of view S3, and the light emitted by multiple fourth field of view pixels 4 is used to form a fourth field of view S4. For example, the first field of view S1, the second field of view S2, the third field of view S3, and the fourth field of view S4 can display different images respectively, and the multi-field of view display panel can also be called a four-field of view display panel.

[0032] like Figure 1 As shown, the first grating component 11 may include a plurality of light-transmitting areas 11a and a plurality of light-impermeable areas 11b, and the light-impermeable areas 11b may be arranged around the light-transmitting areas 11a. Light emitted by the field-of-view pixels may be emitted through the light-transmitting areas 11a. The plurality of light-transmitting areas 11a and the plurality of pixel groups may be arranged in groups, and for example, the plurality of light-transmitting areas 11a and the plurality of pixel groups may be arranged in pairs one by one. Light emitted by the field-of-view pixels included in the pixel groups may be emitted through the light-transmitting areas 11a arranged in pairs.

[0033] like Figure 1 As shown, the first grating component 11 may be a liquid crystal barrier grating. The first grating component 11 may include a first substrate 111, a second substrate 112, and a barrier liquid crystal layer 113 located between the first substrate 111 and the second substrate 112, and the barrier liquid crystal layer 113 may include a plurality of liquid crystal molecules. For example, the first substrate 111 may be closer to the display substrate 10 than the second substrate 112. The first grating component 11 may also include a plurality of first electrodes and a plurality of second electrodes. The plurality of first electrodes may be disposed on the first substrate 111, and the plurality of second electrodes may be disposed on the second substrate 112. The liquid crystal molecules of the barrier liquid crystal layer 113 may be rearranged under the action of the electric field formed by the first electrodes and the second electrodes to form a plurality of light-transmitting areas 11a and a plurality of non-light-transmitting areas 11b. In the embodiment of the present disclosure, by changing the number and position of the first electrodes and the second electrodes forming the electric field, the position and size of the light-transmitting area may be adjusted, the field of view may be increased, and the display quality of the multi-field of view display panel may be improved.

[0034] In some exemplary embodiments, the material of the first substrate 111 and the material of the second substrate 112 may both be transparent materials, for example, transparent resins. The material of the first electrode and the material of the second electrode may both be transparent conductive materials, for example, the transparent conductive materials may include indium tin oxide (ITO) or indium zinc oxide (IZO). The first electrode and the second electrode may be a single-layer structure or a multi-layer composite structure. In the embodiment of the present disclosure, by setting the material of the first substrate 111, the material of the second substrate 112, the material of the first electrode, and the material of the second electrode to transparent materials, the transmittance of the light emitted by the field of view pixel can be ensured.

[0035] In some exemplary embodiments, the plurality of first electrodes or the plurality of second electrodes may be interconnected integral structures, or may be planar electrodes, and the other of the first electrode or the second electrode may be a strip electrode. By designing one of the first electrode and the second electrode as a strip electrode, the electric field formed by the first electrode and the second electrode may be changed by changing the voltage of the strip electrode, thereby reducing the structural complexity of the first grating assembly and improving the design quality of the multi-field display panel.

[0036] In some exemplary embodiments, Figure 1 As shown, the multi-field display panel may also include a second grating component 12, a spacer layer 13 and an anti-peep film 14 which are stacked. In the direction away from the display substrate 10, the spacer layer 13, the second grating component 12, the first grating component 11 and the anti-peep film 14 are arranged in sequence. The refractive index of the spacer layer 13 may be between 1.3 and 1.7. For example, the refractive index of the spacer layer 13 may be 1.4, or the refractive index of the spacer layer 13 may be 1.6. By arranging the spacer layer 13 on the side of the first grating component 11 close to the display substrate 10, the field of view may be increased. By using the anti-peep film 14, the light passing through the anti-peep film 14 may be collimated. By arranging the anti-peep film 14, the display information within the set viewing angle of the multi-field display panel may be visible. For example, the set viewing angle may be 50°. The viewing angle refers to the angle between the user's line of sight and the normal of the multi-field display panel.

[0037] The second grating component 12 may be a liquid crystal lens grating. The second grating component 12 may include a first backing plate 121, a second backing plate 122, and a lens liquid crystal layer 123 located between the first backing plate 121 and the second backing plate 122. The lens liquid crystal layer 123 includes a plurality of liquid crystal molecules. The first backing plate 121 is closer to the display substrate 10 than the second backing plate 122. In some examples, the first substrate 111 and the second backing plate 122 may be shared, which may reduce the number of substrates and the thickness of the multi-field display panel. The second grating component 12 may also include a plurality of third electrodes and a plurality of fourth electrodes. The plurality of third electrodes may be disposed on the first backing plate 121, and the plurality of fourth electrodes may be disposed on the second backing plate 122. The liquid crystal molecules of the lens liquid crystal layer 123 may be rearranged under the action of the electric field formed by the third electrode and the fourth electrode to form a lens-shaped phase distribution, which may achieve spherical and aspherical lens display effects and may achieve focusing of light.

[0038] In some exemplary embodiments, the liquid crystal molecules of the lens liquid crystal layer 123 can be rearranged under the action of the electric field formed by the third electrode and the fourth electrode to form a plurality of liquid crystal lenses, and the plurality of liquid crystal lenses and the plurality of light-transmitting areas 11a can be arranged in pairs one by one, and the orthographic projection of the light-transmitting area 11a on the plane where the multi-field display panel is located overlaps with the orthographic projection of the paired liquid crystal lenses on the plane where the multi-field display panel is located at least partially, and for example, the orthographic projection of the liquid crystal lens on the plane where the multi-field display panel is located includes the orthographic projection of the paired light-transmitting areas 11a on the plane where the multi-field display panel is located. In the embodiment of the present disclosure, by arranging a plurality of liquid crystal lenses, the light control accuracy of the multi-field display panel can be improved, and crosstalk of light from different fields of view can be avoided.

[0039] In some exemplary embodiments, the light-transmitting area 11a has a center line extending in a direction perpendicular to the plane where the multi-field display panel is located, and the liquid crystal lens has a center line, and the center line of the liquid crystal lens is the optical axis of the liquid crystal lens. The distance between the center line of the light-transmitting area 11a and the center line of the liquid crystal lens arranged in pairs can be within a set range. For example, the distance between the center line of the light-transmitting area 11a and the center line of the liquid crystal lens arranged in pairs can be greater than or equal to zero and less than or equal to 30% of the radial dimension of the light-transmitting area 11a. The radial dimension of the light-transmitting area 11a refers to the maximum value from a point in the outline of the light-transmitting area 11a to the center point of the light-transmitting area 11a in a plane parallel to the plane where the multi-field display panel is located. For example, the center line of the light-transmitting area 11a and the center line of the liquid crystal lens arranged in pairs can be collinear. In the embodiment of the present disclosure, by limiting the distance between the center line of the light-transmitting area 11a and the center line of the liquid crystal lens arranged in pairs, the panel preparation accuracy requirements can be reduced on the basis of meeting the light control accuracy of the multi-field display panel, and the preparation cost can be reduced.

[0040] In some exemplary embodiments, the light-transmitting area 11a has a center line extending in a direction perpendicular to the plane where the multi-field display panel is located, and the liquid crystal lens has a center line, and the center line of the liquid crystal lens is the optical axis of the liquid crystal lens. An angle is provided between the center line of the light-transmitting area 11a and the center line of the liquid crystal lenses arranged in pairs, and the range of the angle may be greater than or equal to 0° and less than or equal to 10°. For example, the angle may be 0°, or the angle may be 1°, or the angle may be 3°, or the angle may be 5°, or the angle may be 8°, etc. In the embodiments of the present disclosure, by limiting the range of the angle between the center line of the light-transmitting area 11a and the center line of the liquid crystal lenses arranged in pairs, the panel preparation accuracy requirements can be reduced on the basis of satisfying the light control accuracy of the multi-field display panel, and the preparation cost can be reduced.

[0041] In some exemplary embodiments, the multi-field display panel may further include an anti-reflection film, which may be disposed on the side of the anti-peep film 14 away from the display substrate 10. The anti-reflection film may reduce the surface reflection of the multi-field display panel and increase the light transmittance. The haze range of the anti-reflection film may be 10% to 50%, and for example, the haze range of the anti-reflection film may be 20% to 30%. In the disclosed embodiment, by setting the haze range of the anti-reflection film, the clarity and softness of the multi-field display panel may be better balanced, thereby improving the display quality of the multi-field display panel.

[0042] In some exemplary embodiments, the material of the spacer layer 13 may be a rigid material or a flexible material. For example, the rigid material may be glass or polymethyl methacrylate (PMMA). For example, the flexible material may be an adhesive material. For example, the adhesive material may be an optically clear adhesive (OCA).

[0043] In some exemplary embodiments, the display substrate 10 may be a liquid crystal display substrate (Liquid Crystal Display, LCD), or an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display substrate, or a quantum dot light-emitting diode (Quantum Dot Light Emitting Diodes, QLED) display substrate, or a micro LED (mini-LED or micro-LED) display substrate, etc.

[0044] In some exemplary embodiments, the multi-viewing field display panel may be a medium or large-sized display panel. For example, the resolution of the display panel may be 2560×1440, 3840×2160, or 7680×4320.

[0045] Figure 2Ais a schematic plan view of a display substrate of a multi-viewing field display panel according to an embodiment of the present disclosure, Figure 2B FIG. 1 is a schematic plan view of a display substrate of a multi-viewing field display panel according to another embodiment of the present disclosure. Figure 2A , Figure 2B As shown, the display substrate 10 may include a plurality of red sub-pixels R, a plurality of green sub-pixels G, and a plurality of blue sub-pixels B arranged in a matrix manner, the red sub-pixels R are configured to emit red light, the green sub-pixels G are configured to emit green light, and the blue sub-pixels B are configured to emit blue light. Figure 2A As shown, a plurality of red sub-pixels R are sequentially arranged along the second direction Y to form a red sub-pixel column, a plurality of green sub-pixels G are sequentially arranged along the second direction Y to form a green sub-pixel column, and a plurality of blue sub-pixels B are sequentially arranged along the second direction Y to form a blue sub-pixel column. The red sub-pixel column, the green sub-pixel column, and the blue sub-pixel column are sequentially arranged alternately along the first direction X. The first direction X intersects with the second direction Y and the plane formed is parallel to the plane where the display substrate 10 is located. As shown Figure 2A As shown, only two pixel groups are shown, and the pixel groups are shown as dashed boxes. For example, each pixel group includes four types of field pixels arranged in sequence. The four field pixels are arranged in sequence along the second direction Y. The four field pixels are first field pixels 1, second field pixels 2, third field pixels 3, and fourth field pixels 4. Each field pixel includes a plurality of red sub-pixels R, a plurality of green sub-pixels G, and a plurality of blue sub-pixels B.

[0046] like Figure 2B As shown, a plurality of red sub-pixels R are sequentially arranged along the first direction X to form a red sub-pixel row, a plurality of green sub-pixels G are sequentially arranged along the first direction X to form a green sub-pixel row, and a plurality of blue sub-pixels B are sequentially arranged along the first direction X to form a blue sub-pixel row. The red sub-pixel row, the green sub-pixel row, and the blue sub-pixel row are sequentially arranged alternately along the second direction Y. Figure 2B As shown, only four pixel groups are shown, and the pixel groups are shown as dashed boxes. Taking at least one pixel group including four types of field of view pixels arranged in sequence as an example, the four field of view pixels are arranged in sequence along the second direction Y, and the four field of view pixels are respectively the first field of view pixel 1, the second field of view pixel 2, the third field of view pixel 3, and the fourth field of view pixel 4. Each field of view pixel includes a plurality of red sub-pixels R, a plurality of green sub-pixels G, and a plurality of blue sub-pixels B.

[0047] In some exemplary embodiments, Figure 2A As shown, the plurality of light-transmitting regions 11 a and the plurality of pixel groups may be arranged in groups. For example, the plurality of light-transmitting regions 11 a and the plurality of pixel groups may be arranged in pairs one by one.

[0048] In some exemplary embodiments, Figure 2BAs shown, a plurality of light-transmitting regions 11 a and a plurality of pixel groups may be arranged in a group. For example, one light-transmitting region 11 a and three pixel groups may be arranged in a group.

[0049] In some exemplary embodiments, the display substrate 10 may be an OLED display substrate, each sub-pixel may include a circuit unit and a light-emitting unit, the circuit unit may include at least a pixel driving circuit, the pixel driving circuit is respectively connected to the scanning signal line, the data signal line and the light-emitting signal line, the pixel driving circuit is configured to receive the data voltage transmitted by the data signal line under the control of the scanning signal line and the light-emitting signal line, and output the corresponding current to the light-emitting device. The light-emitting unit may include at least a light-emitting device, the light-emitting device is respectively connected to the pixel driving circuit of the sub-pixel, and the light-emitting device is configured to emit light of corresponding brightness in response to the current output by the pixel driving circuit of the sub-pixel. The light-emitting device may include an anode, an organic light-emitting layer and a cathode, the anode is connected to the pixel driving circuit, the organic light-emitting layer is connected to the anode, the cathode is connected to the organic light-emitting layer, and the organic light-emitting layer emits light of corresponding color under the drive of the anode and the cathode. The pixel driving circuit may include a plurality of transistors and at least one storage capacitor.

[0050] In some exemplary embodiments, the shape of the sub-pixel may be a rectangle, a diamond, a pentagon, or a hexagon. However, the present disclosure is not limited to the shape of the sub-pixel.

[0051] In some exemplary embodiments, the light emitted by the display substrate 10 is linearly polarized light. In some examples, the display substrate 10 may further include a linear polarizer. The linear polarizer may select linear polarized light in a specific direction and block light in other directions.

[0052] In some exemplary embodiments, the refresh rate of the display substrate 10 is greater than or equal to 120 Hz, for example, it can be 180 Hz or 240 Hz, etc. In the embodiment of the present disclosure, by increasing the refresh rate, the picture can be smoother, the stuttering and freeze can be reduced, and the display quality can be improved.

[0053] Figure 3A A cross-sectional view of a second grating assembly of a multi-field display panel according to an embodiment of the present disclosure Figure 1 , Figure 3B FIG2 is a second cross-sectional schematic diagram of a second grating assembly of a multi-viewing field display panel according to an embodiment of the present disclosure. Figure 3A , Figure 3BAs shown, the second grating component 12 may include a first backing plate 121 and a second backing plate 122 which are stacked, and a lens liquid crystal layer 123 located between the first backing plate 121 and the second backing plate 122, wherein the lens liquid crystal layer 123 includes a plurality of liquid crystal molecules. The plane where the first backing plate 121 and the plane where the second backing plate 122 are located are parallel to the plane where the display substrate 10 is located. The second grating component 12 may also include a plurality of third electrodes 12-3 and a plurality of fourth electrodes 12-4, wherein the plurality of third electrodes 12-3 may be disposed on the first backing plate 121, and the plurality of fourth electrodes 12-4 may be disposed on the second backing plate 122. For example, the third electrodes 12-3 may be strip electrodes, and the plurality of fourth electrodes 12-4 may be an integral structure that is interconnected and forms a planar electrode. For example, the second grating component 12 may adopt an electrically controlled birefringence (ECB) mode. As Figure 3A , Figure 3B As shown, the alignment direction of the liquid crystal molecules of the lens liquid crystal layer 123 may be parallel to the light emitting direction of the display substrate.

[0054] like Figure 3A As shown, the third electrode 12-3 and the fourth electrode 12-4 do not form an electric field, and the light emitted by the display substrate 10 (such as Figure 3A The light (indicated by the arrow in the middle) passes through the lens liquid crystal layer 123, and the propagation direction of the light remains unchanged. Figure 3B As shown, the third electrode 12-3 and the fourth electrode 12-4 form an electric field to display the light emitted by the substrate 10 (such as Figure 3B The light (indicated by the arrow in the middle) passes through the lens liquid crystal layer 123, and the propagation direction of the light changes. In the embodiment of the present disclosure, by controlling the electric field formed by the third electrode 12-3 and the fourth electrode 12-4, the second grating component 12 can achieve spherical and aspherical lens display effects. In the embodiment of the present disclosure, by changing the position of the electric field formed by the third electrode 12-3 and the fourth electrode 12-4, the position of the lens can be adjusted, and the display flexibility of the multi-field display panel can be improved.

[0055] Figure 4A A cross-sectional view of a first grating component of a multi-field display panel according to an embodiment of the present disclosure Figure 1 , Figure 4B FIG2 is a second cross-sectional schematic diagram of a first grating component of a multi-viewing field display panel according to an embodiment of the present disclosure. Figure 4A , Figure 4BAs shown, the first grating component 11 may include a first substrate 111 and a second substrate 112 which are stacked, and a barrier liquid crystal layer 113 located between the first substrate 111 and the second substrate 112. The barrier liquid crystal layer 113 may include a plurality of liquid crystal molecules. The plane where the first substrate 111 and the plane where the second substrate 112 are located are parallel to the plane where the display substrate 10 is located. The first grating component 11 may also include a plurality of first electrodes 11-1 and a plurality of second electrodes 11-2. The plurality of first electrodes 11-1 may be disposed on the first substrate 111, and the plurality of second electrodes 11-2 may be disposed on the second substrate 112. For example, the first electrodes 11-1 may be strip electrodes, and the plurality of second electrodes 11-2 may be an integral structure connected to each other and form a planar electrode. The first grating component 11 may adopt a twisted nematic (TN) type or a super twisted nematic (STN) type. As Figure 4A , Figure 4B As shown, the alignment direction of the liquid crystal molecules on the side close to the display substrate in the barrier liquid crystal layer 113 may be parallel to the light emitting direction of the display substrate.

[0056] like Figure 4A , Figure 4B As shown, the first grating assembly 11 may further include an analyzer 15, and the analyzer 15 may be disposed on a side of the second substrate 112 away from the display substrate 10. The analyzer 15 may include a polarizing plate, etc. The analyzer 15 only allows light in a set direction to pass through, and blocks light in other directions. In the embodiment of the present disclosure, the multi-field display panel can be provided with an analyzer to enhance the control capability of light, and thus the display quality.

[0057] like Figure 4A As shown, the first electrode 11-1 and the second electrode 11-2 do not form an electric field, and the light emitted by the display substrate 10 passes through the second grating component 12 (as shown in FIG. Figure 4A The polarization analyzer 15 blocks the polarization analyzer 15. Figure 4B As shown, the first electrode 11-1 and the second electrode 11-2 form an electric field, and the light emitted by the display substrate 10 passes through the second grating component 12 (as shown in FIG. Figure 4B The light (indicated by the arrow in the middle) passes through the analyzer 15, and the propagation direction of the light does not change. In the embodiment of the present disclosure, by controlling the electric field formed by the first electrode 11-1 and the second electrode 11-2, the size and position of the light-transmitting area of ​​the first grating component can be adjusted, the formed field of view can be adjusted, and the display quality can be improved.

[0058] In some exemplary embodiments, the refresh rate of the first grating component 11 is greater than or equal to 120 Hz, for example, it can be 180 Hz or 240 Hz, etc. In the embodiment of the present disclosure, by increasing the refresh rate, the field of view can be increased and the display quality can be improved. The refresh rate of the first grating component 11 refers to the number of times the first grating component updates the light-transmitting area per second.

[0059] In some exemplary embodiments, Figure 4A , Figure 4B As shown, the first grating assembly 11 may further include a polarizer 16, which may be disposed on a side of the first substrate 111 close to the display substrate 10. The polarizer 16 may convert non-polarized light into polarized light, thereby improving the light control effect of the multi-viewing field display panel, reducing stray light, and improving display quality.

[0060] Figure 5A is a cross-sectional schematic diagram of a multi-viewing field display panel at a first moment according to an embodiment of the present disclosure, Figure 5B FIG. 1 is a cross-sectional schematic diagram of a multi-viewing field display panel of an embodiment of the present disclosure at a second moment. The multi-viewing field display panel is at a first moment, and the light-transmitting area 11a of the display substrate 10 and the first grating component 11 is as shown in FIG. Figure 5A The multi-viewing field display panel is in the second moment, and the light-transmitting area 11a of the display substrate 10 and the first grating component 11 is as shown in FIG. Figure 5B The display substrate 10 can display different images at the first moment and the second moment respectively, and the field of view of the multi-field display panel can be increased by changing the position of the light-transmitting area 11a.

[0061] The embodiment of the present disclosure provides a display device, including the multi-field display panel described in any of the above embodiments. The display device can be a naked-eye 3D (Three-Dimensional) TV, or a 3D advertising screen, or a 3D display, or a car navigation system, or a car entertainment system, or a head-up display, or a VR (Virtual Reality) head-mounted display, or AR (Augmented Reality) glasses, etc.

[0062] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted for facilitating understanding of the present invention and are not intended to limit the present invention. It should be noted that the above embodiments or embodiments are merely exemplary and not restrictive. Therefore, the present disclosure is not limited to the contents specifically shown and described herein. Various modifications, substitutions or omissions may be made to the forms and details of implementation without departing from the scope of the present disclosure.

Claims

1. A multi-viewing field display panel, characterized in that: include: A display substrate including a plurality of viewing field pixels for forming a plurality of viewing fields; A first grating component is located at the light-emitting side of the display substrate, and includes a first substrate, a second substrate, and a barrier liquid crystal layer located between the first substrate and the second substrate; the first grating component also includes a plurality of first electrodes and a plurality of second electrodes, the plurality of first electrodes are located on the first substrate, the plurality of second electrodes are located on the second substrate, the plurality of first electrodes and the plurality of second electrodes are configured to form an electric field that changes at least one of the size and the position of a light-transmitting area of ​​the first grating component, and the light emitted by the plurality of viewing field pixels is emitted through the light-transmitting area; A second grating component is located between the display substrate and the first grating component, and includes a first backing plate, a second backing plate, and a lens liquid crystal layer located between the first backing plate and the second backing plate; the second grating component also includes a plurality of third electrodes and a plurality of fourth electrodes, the plurality of third electrodes are located on the first backing plate, the plurality of fourth electrodes are located on the second backing plate, and the plurality of third electrodes and the plurality of fourth electrodes are configured to form an electric field that causes the lens liquid crystal layer to form a plurality of liquid crystal lenses; The plurality of light-transmitting areas and the plurality of liquid crystal lenses are arranged in pairs, and the orthographic projections of the light-transmitting areas and the liquid crystal lenses on the plane where the display substrate is located at least partially overlap.

2. The multi-viewing field display panel according to claim 1, wherein: The light-transmitting area has a center line extending in a direction perpendicular to the plane where the display substrate is located, and the liquid crystal lens has a center line; the distance between the center line of the light-transmitting area and the center line of the liquid crystal lenses arranged in a pair is greater than or equal to zero and less than or equal to 30% of the radial size of the light-transmitting area.

3. The multi-viewing field display panel according to claim 1, wherein: The light-transmitting area has a center line extending in a direction perpendicular to the plane where the display substrate is located, and the liquid crystal lens has a center line. There is an angle between the center line of the light-transmitting area and the center lines of the liquid crystal lenses arranged in a pair, and the range of the angle is greater than or equal to 0° and less than or equal to 10°.

4. The multi-viewing field display panel according to any one of claims 1 to 3, characterized in that: The display substrate and the first grating component have the same refresh rate.

5. The multi-viewing field display panel according to claim 4, wherein: The refresh rate of the display substrate is greater than or equal to 120 Hz.

6. The multi-viewing field display panel according to any one of claims 1 to 3, characterized in that: The display substrate includes a plurality of pixel groups, each pixel group includes N types of viewing field pixels arranged in sequence, the nth viewing field pixel is used to form an nth viewing field, N is an integer greater than or equal to 2, and n is an integer greater than or equal to 1 and less than or equal to N; A plurality of the light-transmitting regions and a plurality of the pixels are arranged in groups.

7. The multi-viewing field display panel according to claim 6, wherein: The display substrate includes a plurality of red sub-pixels, a plurality of green sub-pixels, and a plurality of blue sub-pixels, wherein the red sub-pixels are configured to emit red light, the green sub-pixels are configured to emit green light, and the blue sub-pixels are configured to emit blue light; The plurality of red sub-pixels are sequentially arranged along the first direction to form a red sub-pixel row, the plurality of green sub-pixels are sequentially arranged along the first direction to form a green sub-pixel row, and the plurality of blue sub-pixels are sequentially arranged along the first direction to form a blue sub-pixel row; the red sub-pixel row, the green sub-pixel row and the blue sub-pixel row are sequentially arranged alternately along the second direction; or, The plurality of red sub-pixels are sequentially arranged along the second direction to form a red sub-pixel column, the plurality of green sub-pixels are sequentially arranged along the second direction to form a green sub-pixel column, and the plurality of blue sub-pixels are sequentially arranged along the second direction to form a blue sub-pixel column; the red sub-pixel column, the green sub-pixel column, and the blue sub-pixel column are sequentially arranged alternately along the first direction; The N types of viewing field pixels are arranged in sequence along a second direction, the first direction intersects with the second direction, and the plane formed by the first direction is parallel to the plane where the display substrate is located.

8. The multi-viewing field display panel according to any one of claims 1 to 3, characterized in that: It also includes a spacing layer, which is located between the display substrate and the second grating component; the refractive index of the spacing layer ranges from 1.3 to 1.

7.

9. The multi-viewing field display panel according to any one of claims 1 to 3, characterized in that: It also includes an anti-reflection film, which is located on a side of the first grating component away from the display substrate; the haze of the anti-reflection film ranges from 10% to 50%.

10. A display device, characterized in that: It comprises a multi-viewing field display panel as claimed in any one of claims 1 to 9.

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