WO2023130373A1

WO2023130373A1 - Display panel and manufacturing method therefor, and display device

Info

Publication number: WO2023130373A1
Application number: PCT/CN2022/070797
Authority: WO
Inventors: 樊勇
Original assignee: 厦门市芯颖显示科技有限公司
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2023-07-13
Also published as: CN116724266A

Abstract

Disclosed are a display panel and a manufacturing method therefor, and a display device. The display panel comprises: a plurality of light-emitting units; a narrow view angle structure, covering the light-emitting sides of the plurality of light-emitting units and used for selectively transmitting first light within a first view angle range in light emitted by the plurality of light-emitting units; and an angle deflection structure, located on the side of the narrow view angle structure away from the plurality of light-emitting units and used for adjusting the first light to second light within a second view angle range.

Description

Display panel, manufacturing method thereof, and display device

technical field

The present application relates to the field of display technology, in particular to a display panel, a manufacturing method thereof, and a display device.

Background technique

With the development of automobile technology, in-vehicle displays are becoming more and more popular. Equipped with a Head Up Display (HUD) in a car, the driver can see information such as navigation and vehicle speed without turning or looking down, which improves driving safety.

At present, there are two main technical schools of head-up displays: reflective liquid crystal projection technology (Liquid Crystal on Silicon, LCOS), which uses reflection to form color images; digital light processing technology (Digital Light Processing, DLP), this technology is to digitally process the image signal first, and then project the light.

However, the head-up displays based on these two types of technologies all have the problems of low brightness and slow response speed.

technical problem

The present application provides a display panel, a manufacturing method thereof, and a display device, so as to improve the brightness and response speed of a head-up display.

technical solution

In order to solve the above problems, an embodiment of the present application provides a display panel, the display panel includes: a plurality of light-emitting units; Among the emitted light rays, the first light rays within the first viewing angle range; the angle deflection structure, located on the side of the narrow viewing angle structure away from the plurality of light emitting units, is used to adjust the first light rays to the first light rays within the second viewing angle range Two rays.

Wherein, the light emitting unit is Micro-LED.

Wherein, the narrow viewing angle structure includes a spacer layer and a selective light-emitting layer, the spacer layer is located on the light-emitting side of the plurality of light-emitting units, the selective light-exit layer is located on the side of the spacer layer away from the plurality of light-emitting units, and the selective light-exit layer includes multiple There are two light-transmitting areas and light-blocking areas located between the light-transmitting areas, and the first light is emitted from the multiple light-transmitting areas.

Wherein, the centers of the orthographic projections of the plurality of light emitting units on the selective light-exiting layer respectively coincide with the centers of the plurality of light-transmitting regions; The center of the plurality of light-transmitting regions is shifted upward by a preset distance, and the first direction is parallel to the selective light-exiting layer.

Wherein, the selective light output layer is a first black matrix with a plurality of opening areas.

Wherein, the angle deflection structure includes a plurality of prisms, the prisms include a first surface and a second surface, the first surface is parallel to the second direction, the angle between the second surface and the second direction is an acute angle, and the second direction is perpendicular to The narrow view angle structure, and the first light enters the angle deflection structure through the narrow view angle structure, and is refracted by the second surface and exits from the angle deflection structure to obtain the second light.

Wherein, the display panel further includes: an array substrate located on the side of the plurality of light emitting units away from the narrow viewing angle structure, the array substrate includes a control circuit, and the light emitting units are electrically connected to the control circuit; a second black matrix is located on the array substrate and the narrow viewing angle structure between and around the periphery of the light emitting unit.

In order to solve the above problems, the embodiment of the present application also provides a method for manufacturing a display panel. The method for manufacturing a display panel includes: providing a plurality of light emitting units; On the side, it is used to selectively emit the first light within the first viewing angle range among the light rays emitted by the multiple light emitting units; an angle deflection structure is formed, and the angle deflection structure is located on the side of the narrow viewing angle structure away from the multiple light emitting units , used to adjust the first ray to a second ray within the range of the second viewing angle.

Wherein, forming the narrow viewing angle structure specifically includes: forming a narrow viewing angle structure including a spacer layer and a selective light-emitting layer, the spacer layer is located on the light-emitting side of the plurality of light-emitting units, and the selective light-emitting layer is located on a side of the spacer layer away from the plurality of light-emitting units On the side, and the selective light-exiting layer includes a plurality of light-transmitting regions and light-blocking regions located between the light-transmitting regions, and the first light is emitted from the plurality of light-transmitting regions.

Wherein, forming the angle deflection structure specifically includes: forming an angle deflection structure including a plurality of prisms, the prisms include a first surface and a second surface, the first surface is parallel to the second direction, and the gap between the second surface and the second direction is The included angle is an acute angle, the second direction is perpendicular to the narrow view angle structure, and the first ray enters the angle deflection structure through the narrow view angle structure, is refracted by the second surface, and exits the angle deflection structure to obtain the second light.

In order to solve the above problems, an embodiment of the present application further provides a display device, the display device includes a driving circuit and a display panel, and the driving circuit is used to provide a driving voltage to the display panel, wherein the display panel includes: a plurality of light emitting units; The viewing angle structure is covered on the light-emitting side of the multiple light emitting units, and is used to selectively emit the first light within the first viewing angle range among the light emitted by the multiple light emitting units; the angle deflection structure is located on the narrow viewing angle structure away from the multiple On one side of the light emitting unit, it is used to adjust the first light to the second light within the second viewing angle range.

Wherein, the light emitting unit is Micro-LED.

Beneficial effect

The beneficial effects of the present application are: the display panel provided by the present application, its manufacturing method, and the display device include a plurality of light emitting units, a narrow viewing angle structure covering the light emitting side of the plurality of light emitting units, and a structure located away from the narrow viewing angle structure. The angle deflection structure on one side of the plurality of light emitting units, the narrow viewing angle structure can selectively emit the first light within the range of the first viewing angle among the light emitted by the plurality of light emitting units, and the angle deflection structure can convert the first light It is adjusted to the second light within the second viewing angle range, thereby providing a display panel with a new structure that can be used for a head-up display in a vehicle, and when the display panel is applied to a vehicle display, it can use fast response and high brightness. High light-emitting units (for example, Micro-LED), which can improve the brightness and response speed of the head-up display in the vehicle.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present application;

Fig. 2 is a schematic diagram of a first viewing angle range corresponding to the narrow viewing angle structure in Fig. 1;

Fig. 3 is a schematic diagram of a second viewing angle range corresponding to the angle deflection structure in Fig. 1;

FIG. 4 is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present application;

FIG. 5 is a schematic top view of the array substrate provided by the embodiment of the present application;

FIG. 6 is a schematic flowchart of a method for manufacturing a display panel provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a display device provided by an embodiment of the present application.

Embodiments of the present invention

The application will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present application, but not to limit the scope of the present application. Likewise, the following embodiments are only some of the embodiments of the present application but not all of them, and all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

In addition, when describing the structure of a component, when a layer or a region is referred to as being “on” or “over” another layer or another region, it may mean that it is directly on another layer or another region, or on There are other layers or regions between it and another layer or another region. And, if the part is turned over, the layer, one region, will be "under" or "beneath" the other layer, another region. Furthermore, the features, structures, or characteristics described hereinafter may be combined in any suitable manner in one or more embodiments.

Please refer to FIG. 1 to FIG. 3. FIG. 1 is a schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present application. FIG. 2 is a schematic diagram of the first viewing angle range corresponding to the narrow viewing angle structure in FIG. 1. FIG. A schematic diagram of the second viewing angle range corresponding to the folding structure. As shown in FIGS. 1 to 3 , the display panel 10 includes a plurality of light emitting units 11 , a narrow viewing angle structure 12 covering the light emitting sides of the plurality of light emitting units 11 , and a narrow viewing angle structure 12 located away from the plurality of light emitting units. Angled deflection structure 13 on one side of 11. Wherein, the narrow viewing angle structure 12 can selectively emit the first light beam L1 within the first viewing angle range A among the light beams emitted by the plurality of light emitting units 11 . The angle deflection structure 13 can adjust the first light L1 to the second light L2 within the second viewing angle range B.

Moreover, for the convenience of understanding and description, the angle between the light and the normal N of the display panel 10 is defined as: the angle formed by the light turning to the normal N of the display panel 10 in an acute angle direction, wherein, if the turning is clockwise, the corresponding light The included angle with the normal N is a positive acute angle, and if the direction of rotation is counterclockwise, the corresponding angle between the light and the normal N is a negative acute angle. Wherein, the normal line N of the display panel 10 is parallel to the thickness direction of the display panel 10 (ie, the Z direction in FIG. 1 ).

Specifically, as shown in FIG. 2, the above-mentioned first viewing angle range A may be from -β1 to +β2, wherein the value range of β1 and β2 may be from 0° to 30°, and β1 and β2 may be equal, for example, β1 and β2 may be equal to 20°, or may not be equal, for example, β1 may be equal to 10°, and β2 may be equal to 30°.

Among the light rays emitted by the above-mentioned light-emitting unit 11, only the light rays whose included angle with the normal N is between -β1 and +β2 (that is, the above-mentioned first light rays L1) can enter the above-mentioned narrow viewing angle structure 12 and pass through the narrow viewing angle structure 12. The light-emitting side of 12 shoots out. Moreover, among the light rays emitted by the light-emitting unit 11, the light L3 whose included angle with the normal line N is outside -β1 to +β2 will be absorbed by the narrow-viewing-view structure 12 after entering the narrow-viewing-view structure 12, so as not to pass from the narrow-viewing-view structure 12 The narrow viewing angle structure 12 is emitted.

Therefore, the angle range between the first light L1 and the normal N (that is, the first viewing angle range A) will be smaller than the angle range between the light emitted by the light emitting unit 11 and the normal N (that is, the light emitting unit 11 light emitting angle), and this is because the narrow viewing angle structure 12 absorbs the large viewing angle light emitted by the light emitting unit 11, so the narrow viewing angle structure 12 can have a better narrow viewing angle effect.

In this embodiment, as shown in FIG. 3 , the second viewing angle range B may be the viewing angle of a user of the display panel 10 . For example, when the display panel 10 is applied to a vehicle display, the above-mentioned second viewing angle range B may specifically be a driver's viewing angle. Moreover, compared with the main viewing angle direction of the conventional display panel parallel to the normal direction, the distance between the main viewing angle direction of the display panel 10 and the normal direction of the display panel 10 (that is, the Z direction in FIG. 3 ) in this embodiment is There is an acute angle between them, that is, the viewing direction of the user of the display panel 10 deviates from the normal direction of the display panel 10 .

In a specific embodiment, as shown in FIG. 3, the above-mentioned second viewing angle range B may be β3 to β4, wherein β4 is greater than β3, and the value range of β3 and β4 may be 0° to 30°, for example, β3 It can be equal to 20°, and β4 can be equal to 36°.

Specifically, as shown in FIG. 1, after the above-mentioned first light beam L1 enters the angle deflection structure 13 through the above-mentioned narrow viewing angle structure 12, the angle deflection structure 13 will change the directivity of the propagation direction of the first light beam L1, so as to The second light L2 directed at a specific viewing angle (ie, the second viewing angle range B) emitted from the angle deflecting structure 13 is obtained, so that the display panel 10 can be used in a head-up display of a vehicle.

In one embodiment, the above-mentioned light emitting unit 11 may be a light emitting diode (Light Emitting Diode, LED), for example, red LED, green LED or blue LED, etc.

In a specific embodiment, the above-mentioned light emitting unit may specifically be a Micro-Light Emitting Diode (Micro-LED), such as a red Micro-LED, a green Micro-LED or a blue Micro-LED. Due to the use of inorganic light-emitting diode technology, Micro-LED can achieve ns-level response speed, and has the advantages of low power consumption, high brightness, and long life.

Therefore, compared with the head-up display based on reflective liquid crystal projection technology (Liquid Crystal on Silicon, LCOS) and digital light processing technology (Digital Light Processing, DLP) in the prior art, there are problems of slow response and low brightness. , the display panel 10 of this embodiment can improve the brightness and response speed of the head-up display in the vehicle when it is applied to the vehicle display by using the light-emitting unit 11 (for example, Micro-LED) with fast response speed and high brightness. Moreover, the narrow viewing angle structure 12 in this embodiment can absorb the light with a large viewing angle emitted by the light-emitting unit 11, so that a light-emitting device with a large light-emitting angle can also be used as the light-emitting unit 11 of the display panel 10 in this embodiment, which greatly expands the range of light-emitting units. The selected type of 11 can use an ultra-high-brightness light-emitting device with a large light-emitting angle as the above-mentioned light-emitting unit 11, so that the brightness and response speed of the head-up display in the vehicle can be improved.

Specifically, as shown in FIG. 1 , the plurality of light emitting units 11 may include red Micro-LEDs 11a , green Micro-LEDs 11b and blue Micro-LEDs 11c to realize full-color display of the display panel 10 . Moreover, during specific implementation, the above-mentioned plurality of light emitting units 11 may be arranged in an array to form a light emitting unit array. Wherein, the light-emitting unit array may have a minimum repeating unit (for example, a minimum repeating unit including red Micro-LED11a, green Micro-LED11b, and blue Micro-LED11c), and each minimum repeating unit may correspond to one of the above-mentioned display panels 10 Display pixels.

In one embodiment, as shown in FIG. 1 , the narrow viewing angle structure 12 may include a spacer layer 121 and a selective light-extracting layer 122 . Wherein, the spacer layer 121 is located on the light emitting side of the plurality of light emitting units 11 , and the selective light output layer 122 is located on the side of the spacer layer 121 away from the plurality of light emitting units 11 . Specifically, the selective light output layer 122 may include a plurality of light-transmitting regions 122a and a light-blocking region 122b located between the light-transmitting regions 122a, and the first light L1 emitted by the above-mentioned plurality of light-emitting units 11 can respectively pass through the plurality of light-transmitting regions 122a. The area 122a is emitted, and the light L3 incident on the position of the light blocking area 122b among the light emitted by the plurality of light emitting units 11 will be absorbed by the light blocking area 122b, so as to achieve the purpose of narrowing the viewing angle.

Specifically, the above-mentioned plurality of light-transmitting regions 122a may correspond to the above-mentioned plurality of light-emitting units 11 one-to-one, and each light-transmitting region 122a may be located directly above its corresponding light-emitting unit 11, and is used to emit light from its corresponding light-emitting unit 11. The first light L1 within the range A of the first viewing angle among the emitted light rays.

Moreover, during specific implementation, the size of the above-mentioned light-transmitting region 122a can be correspondingly set according to the pre-selected above-mentioned first viewing angle range A, so that the light-transmitting region 122a can only allow the light emitted by its corresponding light-emitting unit 11 to be located at the first viewing angle. The first light L1 within a viewing angle range A passes through. Wherein, the orthographic projection of the light-emitting unit 11 on the selective light-exiting layer 122 may completely or partially overlap with the corresponding light-transmitting region 122a.

In a possible application scenario, the sum of the maximum value and the minimum value in the first viewing angle range A may be zero, for example, the first viewing angle range A may be -20° to 20°. Moreover, in order to enable the light-transmitting region 122a to emit the first light L1 emitted by its corresponding light-emitting unit 11 within the first viewing angle range A, as shown in FIG. 1 , the above-mentioned multiple light-emitting units 11 selectively emit light The centers of the orthographic projections on the layer 122 may respectively coincide with the centers of the plurality of light-transmitting regions 122a, so as to ensure that the sum of the maximum value and the minimum value within the range A of the first viewing angle can be zero.

In another possible application scenario, the sum of the maximum value and the minimum value in the first viewing angle range A may not be zero, for example, the first viewing angle range A may be -10° to 30°. Moreover, in order to enable the light-transmitting region 122a to selectively emit the first light L1 emitted by its corresponding light-emitting unit 11 within the first viewing angle range A, as shown in FIG. 4 , the plurality of light-emitting units 11 are selected The centers of the orthographic projections on the light-exiting layer 122 can be offset by a preset distance D1 relative to the centers of the above-mentioned multiple light-transmitting regions 122a in the first direction (for example, the X direction in FIG. 4 ), so as to ensure that the first The sum of the maximum value and the minimum value within a viewing angle range A can be non-zero.

Wherein, the above-mentioned first direction is parallel to the selective light output layer 122 and perpendicular to the thickness direction of the selective light output layer 122 (that is, the Z direction in FIG. 4 ). The size of the above-mentioned preset distance D1 can be correspondingly set according to the first viewing angle range A set according to actual needs.

In this embodiment, the spacer layer 121 is transparent, and may specifically be a transparent adhesive layer, wherein the material of the transparent adhesive layer may be an optically transparent resin. Specifically, when the size and position of the light-transmitting region 122a are fixed, the greater the thickness of the spacer layer 121, the smaller the range A corresponding to the first viewing angle will be, and the smaller the thickness of the spacer layer 121, the smaller the range A will be corresponding to the first viewing angle. The viewing angle range A will be larger. Therefore, in the above-mentioned display panel 10 , the purpose of setting the selected first viewing angle range A can be achieved by adjusting the size and position of the light-transmitting region 122 a and the thickness of the spacer layer 121 .

Specifically, the above-mentioned selective light output layer 122 can be a first black matrix with multiple opening areas, wherein the above-mentioned multiple light-transmitting areas 122a can be respectively multiple opening areas on the first black matrix, and the above-mentioned light-blocking area 122b may be a non-opening area on the first black matrix.

In a specific embodiment, as shown in FIG. 1 , the above-mentioned display panel 10 may further include a second black matrix 15, the second black matrix 15 is located on the side of the narrow viewing angle structure 12 away from the angle deflection structure 13, and is surrounded by The periphery of the light-emitting units 11 can separate each light-emitting unit 11 from other light-emitting units 11 located around it, and absorb light irradiated to the second black matrix 15 , thereby reducing light crosstalk between adjacent light-emitting units 13 .

Moreover, the second black matrix 15 and the first black matrix can form upper and lower double absorption cavities, so that by adjusting the thickness of the spacer layer 121 between the double cavities, the purpose of adjusting the above-mentioned first viewing angle range A can be realized, because the above-mentioned second The viewing angle range B will follow the change of the first viewing angle range A, so that the user's viewing angle of the display panel 10 can be adjusted. Compared with the display panel used for the head-up display in the prior art, the display panel 10 in this embodiment can not only meet the requirements of the head-up display on the narrow viewing angle of the display panel and the user's viewing angle and the normal direction of the screen, but also has a structural process The manufacturing process is mature and simple, the cost is low and the advantages are easy to implement.

In a possible application scenario, the above-mentioned second black matrix 15 and the first black matrix may have the same opening pattern, so that there is no need to design a new black matrix, which is beneficial to reduce production costs. Specifically, the above-mentioned orthographic projections of the plurality of light emitting units 11 on the first black matrix may completely overlap with the plurality of opening regions on the first black matrix.

Moreover, it can be understood that, when the second black matrix 15 and the first black matrix have the same opening pattern, that is, when the size and position of the light-transmitting region 122a in the above-mentioned narrow viewing angle structure 12 are fixed, The purpose of setting the selected first viewing angle range A can be achieved by adjusting the above-mentioned offset distance D1 and/or the thickness of the above-mentioned spacer layer 121 .

In some embodiments, as shown in FIG. 1 , the above-mentioned narrow viewing angle structure 12 may also include a transparent substrate 123 located on the side of the selective light-extracting layer 122 away from the spacer layer 121, and the above-mentioned selective light-extracting layer 122 may be formed on the on the transparent substrate 123 .

In the above embodiment, as shown in FIG. 1 , the above-mentioned angle deflection structure 13 may include a plurality of prisms 131, wherein the prisms 131 may include a first surface 131A and a second surface 131B, and the first surface 131A may be parallel to the second surface 131A. Two directions (that is, the Z direction in FIG. 1 ), the angle between the second surface 131B and the second direction may be an acute angle, and the second direction is perpendicular to the narrow viewing angle structure 12 and parallel to the narrow viewing angle structure 12 the thickness direction. The first light L1 can enter the angle deflection structure 13 through the narrow viewing angle structure 12 , and can be emitted from the angle deflection structure 13 after being refracted by the second surface 131B to obtain the second light L2 .

Specifically, the second surfaces 131B of the plurality of prisms 131 can be inclined to a selected viewing direction, so that the first light L1 can be inclined to the selected viewing direction after being refracted by the second surfaces 131B. Moreover, during specific implementation, the purpose of setting the selected second viewing angle range B can be achieved by adjusting the angle between the second surface 131B and the normal N in the above-mentioned angle deflection structure 13 and the inclination direction of the second surface 131B. .

In a specific embodiment, the angle deflection structure 13 may further include a prism base 132 , and the prism base 132 and the plurality of prisms 131 may be integrally formed. Specifically, the plurality of prisms 131 may be formed by the surface of the prism base 132 facing away from the narrow viewing angle structure 12 protruding away from the narrow viewing angle structure 12 at positions corresponding to the plurality of light emitting units 11 .

In some embodiments, as shown in FIG. 1 , the above-mentioned display panel 10 may further include a first adhesive layer 18, and the first adhesive layer 18 is located between the narrow viewing angle structure 12 and the role deflection structure 13, for The narrow viewing angle structure 12 and the role deflection structure 13 are bonded and fixed. Wherein, the first adhesive layer 18 may specifically be an optically transparent adhesive film, an optically transparent adhesive tape, or an optically transparent resin.

In some embodiments, as shown in FIG. 1 , the above display panel 10 may further include a cover plate 17 located on a side of the role deflection structure 13 away from the narrow viewing angle structure 12 . Specifically, the cover plate 17 may be a glass cover plate, and a touch layer or the like may also be disposed on the glass cover plate.

Specifically, the display panel 10 may further include a second adhesive layer 16, the second adhesive layer 16 is located on the edge area of the above-mentioned angle deflection structure 13, and can deflect the edge area of the above-mentioned cover plate 17 from the above-mentioned angle. The edge regions of the fold structure 13 are adhesively fixed. Wherein, the material of the second adhesive layer 16 may include a black light-shielding material, so as to avoid light leakage in the non-display area of the display panel 10 mentioned above.

In the above embodiment, as shown in FIG. 1 , the display panel 10 may further include an array substrate 14 , wherein the array substrate 14 may be located on a side of the plurality of light emitting units 11 away from the narrow viewing angle structure 12 . In addition, the array substrate 14 may include a control circuit, and the light emitting unit 11 may be electrically connected to the control circuit, wherein the control circuit can control the light emitting unit 13 to emit light.

Specifically, as shown in FIG. 5, the above-mentioned array substrate 14 may include a substrate, and a plurality of gate lines, a plurality of data lines disposed on the substrate, and A plurality of pixel regions, wherein the plurality of pixel regions may include a red pixel region 141, a green pixel region 142, a blue pixel region 143, and the like. The plurality of light-emitting units 11 can be fixed on the corresponding pixel regions of the array substrate 14 by welding, and the plurality of light-emitting units 11 can correspond to the plurality of pixel regions.

The display panel of this embodiment includes a plurality of light emitting units, a narrow viewing angle structure covering the light emitting side of the plurality of light emitting units, and an angle deflection structure located on a side of the narrow viewing angle structure away from the plurality of light emitting units, The narrow viewing angle structure can selectively emit the first light rays within the first viewing angle range among the light rays emitted by the plurality of light emitting units, and the angle deflection structure can adjust the first light rays to the second light rays within the second viewing angle range, thereby A display panel with a novel structure for a head-up display in a vehicle is provided, which is beneficial to improving the brightness and response speed of the head-up display in a vehicle.

Please refer to Figure 6, Figure 6 is a schematic flow chart of the method for manufacturing the display panel provided by the embodiment of the present application, please refer to Figures 1 to 5 at the same time, Figures 1 to 5 are the process of preparing the display panel provided by the embodiment of the present application Schematic diagram of the structure. This embodiment takes the formation of the display panel 10 as an example to illustrate the preparation method, and the specific process of the production method of the display panel 10 can be as follows:

Step S11 : providing a plurality of light emitting units 11 .

Wherein, the above step S11 may specifically include: providing an array substrate 14, and disposing a plurality of light emitting units 11 on the array substrate 14, the array substrate 14 includes a control circuit, and the plurality of light emitting units 11 are electrically connected to the control circuit.

Moreover, in a specific implementation, a mass transfer of a plurality of light emitting units 11 to the array substrate 14 may be performed, so as to arrange a plurality of light emitting units 11 on the array substrate 14 .

In a specific embodiment, the above light emitting unit 11 may specifically be a Micro-LED. Specifically, multiple Micro-LEDs can be formed on a single crystal silicon substrate, and then the multiple Micro-LEDs on the single crystal silicon substrate can be cut to obtain multiple independent Micro-LEDs, which can then be welded Each Micro-LED is transferred to a corresponding area on the array substrate 14 (that is, a corresponding pixel area).

Step S12: forming a narrow viewing angle structure 12, the narrow viewing angle structure 12 covers the light emitting side of the plurality of light emitting units 11, and is used to selectively emit the first light within the first viewing angle range A among the light emitted by the plurality of light emitting units 11 L1.

Wherein, the above step S12 may specifically include: forming a narrow viewing angle structure 12 including a spacer layer 121 and a selective light-emitting layer 122, the spacer layer 121 is located on the light-emitting side of the plurality of light-emitting units 11, and the selective light-exit layer 122 is located on the spacer layer 121 On the side away from the plurality of light-emitting units 11, the selective light-exiting layer 122 includes a plurality of light-transmitting regions 122a and a light-blocking region 122b between the light-transmitting regions 122a, and the first light L1 can pass through the plurality of light-transmitting regions 122a. Zone 122a shoots out.

Moreover, during specific implementation, the selective light-emitting layer 122 can be formed on the transparent substrate 123, and then through the transparent adhesive layer as the spacer layer 121, the selective light-emitting layer 122 faces the orientation of the above-mentioned multiple light-emitting units 11, and the selective light-emitting layer 122 will be formed. The transparent substrate 123 of the light-exiting layer 122 is bonded and fixed on the light-emitting sides of the plurality of light-emitting units 11 to obtain the narrow viewing angle structure 12 including the spacer layer 121 , the selective light-exiting layer 122 and the transparent substrate 123 .

Step S13: Forming the angle deflection structure 13, the angle deflection structure 13 is located on the side of the narrow viewing angle structure 12 away from the plurality of light emitting units 11, and is used to adjust the first light L1 to the second light beam L1 within the second viewing angle range B. Light L2.

Wherein, the above step S13 may specifically include: forming the angle deflection structure 13 comprising a plurality of prisms 131, the prisms 131 comprising a first surface 131A and a second surface 131B, the first surface 131A is parallel to the second direction, and the second surface 131B is parallel to the second direction. The included angle between the second directions is an acute angle, and the second direction is perpendicular to the narrow viewing angle structure 12, and the first light L1 can enter the angle deflection structure 13 through the narrow viewing angle structure 12, and be refracted by the second surface 131B from the angle The deflection structure 13 emits to obtain the second light L2.

Moreover, during specific implementation, the angle deflection structure 13 can be provided, and the angle deflection structure 13 can be fixed on the side of the narrow viewing angle structure 12 away from the plurality of light emitting units 11 through the first adhesive layer 18 .

In some embodiments, after the above step S13, it may also include:

Step S14 : forming the cover plate 17 on the side of the angle deflection structure 13 away from the narrow viewing angle structure 12 .

Specifically, the cover plate 17 can be fixed on the side of the angle deflection structure 13 away from the narrow viewing angle structure 12 through the second adhesive layer 16 .

It should be noted that, for the specific structure of the display panel 10 in this embodiment, reference may be made to the specific implementation manners in the above embodiments of the display panel, so details are not repeated here.

The manufacturing method of the display panel in this embodiment provides a plurality of light emitting units and forms a narrow viewing angle structure, and the narrow viewing angle structure is covered on the light emitting side of the plurality of light emitting units, and is used to selectively emit light emitted by the plurality of light emitting units. The narrow viewing angle structure of the first light within the first viewing angle range forms an angle deflection structure, and the angle deflection structure is located on the side of the narrow viewing angle structure away from the plurality of light emitting units, and is used to adjust the first light to be positioned at the first The second light within the range of two viewing angles can provide a display panel with a new structure for the head-up display in the vehicle, which is beneficial to improving the brightness and response speed of the head-up display in the vehicle.

Please refer to FIG. 7 . FIG. 7 is a schematic structural diagram of a display device provided by an embodiment of the present application. As shown in FIG. 7 , the display device 100 includes a driving circuit and the display panel 101 of any one of the above-mentioned embodiments, and the driving circuit is used to provide a driving voltage to the display panel 101 .

The display panel 101 includes a plurality of light emitting units, a narrow viewing angle structure covering the light emitting side of the plurality of light emitting units, and an angle deflection structure located on a side of the narrow viewing angle structure away from the plurality of light emitting units, wherein the narrow viewing angle The structure can selectively emit the first light within the first viewing angle range among the light emitted by the plurality of light emitting units, and the angle deflection structure can adjust the first light to the second light within the second viewing angle range.

A display device provided in an embodiment of the present application has the same beneficial effect as the above-mentioned display panel because it is provided with the display panel provided in the embodiment of the present application.

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the protection of the application. within range.

Claims

A display panel comprising:

Multiple lighting units;

A narrow viewing angle structure, covering the light-emitting side of the plurality of light-emitting units, for selectively emitting the first light within the range of the first viewing angle among the light emitted by the plurality of light-emitting units;

The angle deflection structure is located on the side of the narrow viewing angle structure away from the plurality of light emitting units, and is used to adjust the first light to the second light within the second viewing angle range.
The display panel according to claim 1, wherein the light emitting unit is a Micro-LED.
The display panel according to claim 1, wherein the narrow viewing angle structure comprises a spacer layer and a selective light output layer, the spacer layer is located on the light output side of the plurality of light emitting units, and the selective light output layer is located on the light output side of the plurality of light emitting units. The side of the spacer layer away from the plurality of light-emitting units, and the selective light-exiting layer includes a plurality of light-transmitting regions and light-blocking regions between the light-transmitting regions, and the first light comes from the A plurality of light-transmitting regions are emitted.
The display panel according to claim 3, wherein the centers of the orthographic projections of the plurality of light-emitting units on the selective light-exiting layer respectively coincide with the centers of the plurality of light-transmitting regions; or,

Centers of orthographic projections of the plurality of light-emitting units on the selective light-exiting layer are respectively offset by a preset distance in a first direction relative to the centers of the plurality of light-transmitting regions, and the first direction is parallel to the The selective light-extracting layer.
The display panel according to claim 3, wherein the selective light output layer is a first black matrix having a plurality of opening areas.
The display panel according to claim 1, wherein the angle deflection structure comprises a plurality of prisms, the prisms comprise a first surface and a second surface, the first surface is parallel to the second direction, the second The included angle between the surface and the second direction is an acute angle, the second direction is perpendicular to the narrow viewing angle structure, and the first light enters the angle deflection structure through the narrow viewing angle structure, and After being refracted by the second surface, it is emitted from the angle deflection structure to obtain the second light.
The display panel according to claim 1, wherein the display panel further comprises:

An array substrate, located on a side of the plurality of light emitting units away from the narrow viewing angle structure, the array substrate includes a control circuit, and the light emitting units are electrically connected to the control circuit;

The second black matrix is located between the array substrate and the narrow viewing angle structure, and surrounds the periphery of the light emitting unit.
A method of manufacturing a display panel, comprising:

Provide multiple lighting units;

A narrow viewing angle structure is formed, and the narrow viewing angle structure is covered on the light emitting side of the plurality of light-emitting units, and is used to selectively emit the first light within the first viewing angle range among the light emitted by the plurality of light-emitting units;

An angle deflection structure is formed, the angle deflection structure is located on the side of the narrow viewing angle structure away from the plurality of light emitting units, and is used to adjust the first light beam to a second light beam within a second viewing angle range .
The method for manufacturing a display panel according to claim 8, wherein said forming a narrow viewing angle structure specifically comprises:

forming a narrow viewing angle structure comprising a spacer layer and a selective light-emitting layer, the spacer layer is located on the light-emitting side of the plurality of light-emitting units, and the selective light-exit layer is located on a side of the spacer layer away from the plurality of light-emitting units side, and the selective light-exiting layer includes a plurality of light-transmitting regions and light-blocking regions between the light-transmitting regions, and the first light is emitted from the plurality of light-transmitting regions.
The method for manufacturing a display panel according to claim 8, wherein said forming the angle deflection structure specifically comprises:

forming an angle deflection structure comprising a plurality of prisms, the prisms comprising a first surface and a second surface, the first surface being parallel to a second direction, an included angle between the second surface and the second direction is an acute angle, the second direction is perpendicular to the narrow viewing angle structure, and the first light enters the angle deflection structure through the narrow viewing angle structure, and is refracted by the second surface from the angle The deflection structure emits to obtain the second light.
A display device, which includes a drive circuit and a display panel, the drive circuit is used to provide a drive voltage to the display panel, wherein the display panel includes:

Multiple lighting units;

A narrow viewing angle structure, covering the light-emitting side of the plurality of light-emitting units, for selectively emitting the first light within the range of the first viewing angle among the light emitted by the plurality of light-emitting units;

The angle deflection structure is located on the side of the narrow viewing angle structure away from the plurality of light emitting units, and is used to adjust the first light to the second light within the second viewing angle range.
The display device according to claim 11, wherein the light emitting unit is a Micro-LED.
The display device according to claim 11, wherein the narrow viewing angle structure comprises a spacer layer and a selective light output layer, the spacer layer is located on the light output side of the plurality of light emitting units, and the selective light output layer is located on the light output side of the plurality of light emitting units. The side of the spacer layer away from the plurality of light-emitting units, and the selective light-exiting layer includes a plurality of light-transmitting regions and light-blocking regions between the light-transmitting regions, and the first light comes from the A plurality of light-transmitting regions are emitted.
The display device according to claim 13, wherein the centers of the orthographic projections of the plurality of light-emitting units on the selective light-exiting layer respectively coincide with the centers of the plurality of light-transmitting regions; or,

Centers of orthographic projections of the plurality of light-emitting units on the selective light-exiting layer are respectively offset by a preset distance in a first direction relative to the centers of the plurality of light-transmitting regions, and the first direction is parallel to the The selective light-extracting layer.
The display device according to claim 13, wherein the selective light output layer is a first black matrix having a plurality of opening areas.
The display device according to claim 11, wherein the angle deflection structure comprises a plurality of prisms, the prisms comprise a first surface and a second surface, the first surface is parallel to the second direction, the second The included angle between the surface and the second direction is an acute angle, the second direction is perpendicular to the narrow viewing angle structure, and the first light enters the angle deflection structure through the narrow viewing angle structure, and After being refracted by the second surface, it is emitted from the angle deflection structure to obtain the second light.
The display device according to claim 11, wherein the display panel further comprises:

The array substrate is located on the side of the plurality of light emitting units away from the narrow viewing angle structure, the array substrate includes a control circuit, and the light emitting units are electrically connected to the control circuit;

The second black matrix is located between the array substrate and the narrow viewing angle structure, and surrounds the periphery of the light emitting unit.