Display module, and field-of-view display device used in vehicle

Abstract

A display module, and a field-of-view display device used in a vehicle. A light-emitting functional layer (10) in the display module (100) has a center line (L1) perpendicular to a first direction (X); a dimming main optical axis obtained by means of a main optical axis of a first light-emitting unit (121) passing through a first dimming unit (21) coincides with the main optical axis of the first light-emitting unit (121); and a dimming main optical axis obtained by means of a main optical axis of a second light-emitting unit (122) passing through a second dimming unit (22) is arranged close to the center line relative to the main optical axis of the second light-emitting unit (122).

Description

Display module and field of view display device for vehicle Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a field of view display device for use in a vehicle. Background Art

[0002] Head-up displays (HUDs) are flight-assistance devices originally used in aircraft. Currently, HUDs are widely used in automobiles. Their principle is that an image on a display is reflected by one or two mirrors and projected onto the car's windshield, creating a high-brightness virtual image in front of the eye.

[0003] Affected by the distance between the human eye and the virtual image, as well as the size of the display screen, the brightness of the edge areas of the displayed image decreases as the viewing angle increases. Specifically, the brightness of the central area of ​​the displayed image appears brighter, while the brightness of the edge areas gradually dims. Therefore, improving the brightness uniformity of the displayed image as seen by the human eye is an urgent issue. SUMMARY OF THE INVENTION

[0004] The present application provides a display module and a field of view display device for use in a vehicle, aiming to improve the brightness uniformity of a display image seen by the human eye.

[0005] On the one hand, an embodiment of the present application provides a display module, which includes: a light-emitting functional layer and a plurality of dimming units, the light-emitting functional layer includes a substrate and a plurality of light-emitting units, the plurality of light-emitting units are arranged on the substrate and are arranged in an array, the light-emitting functional layer includes a central display area and two edge display areas, the light-emitting functional layer is sequentially arranged in the order of the edge display area, the central display area and the edge display area in a first direction; the plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit, the first light-emitting unit is located in the central display area, and the second light-emitting unit is located in the edge display area; the plurality of dimming units The light unit is arranged on the light-emitting surface side of the light-emitting functional layer, and includes a first dimming unit and a second dimming unit, the first dimming unit corresponds to the first light-emitting unit, and the second dimming unit corresponds to the second light-emitting unit; wherein, on the plane where the light-emitting functional layer is located, the light-emitting functional layer has a center line perpendicular to the first direction; the dimming main optical axis obtained after the main optical axis of the first light-emitting unit passes through the first dimming unit coincides with the main optical axis of the first light-emitting unit; the dimming main optical axis obtained after the main optical axis of the second light-emitting unit passes through the second dimming unit is relative to the main optical axis of the second light-emitting unit, and is arranged close to the center line.

[0006] On the other hand, the present application also provides a field of view display device for use in a vehicle, wherein the field of view display device includes a display module and a windshield, the windshield is used to reflect light from the display module to the eye box, and the display module includes: a light-emitting functional layer, including a substrate and a plurality of light-emitting units, a plurality of the light-emitting units are arranged on the substrate and are arranged in an array, the light-emitting functional layer includes a central display area and two edge display areas, and the light-emitting functional layer is sequentially arranged in the first direction in the order of the edge display area, the central display area and the edge display area; the plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit, the first light-emitting unit is located in the central display area, and the second light-emitting unit is located in the central display area. The light unit is located in the edge display area; multiple dimming units are arranged on the side of the light-emitting surface of the light-emitting functional layer, including a first dimming unit and a second dimming unit, the first dimming unit corresponds to the first light-emitting unit, and the second dimming unit corresponds to the second light-emitting unit; wherein, on the plane where the light-emitting functional layer is located, the light-emitting functional layer has a center line perpendicular to the first direction; the dimming main optical axis obtained after the main optical axis of the first light-emitting unit passes through the first dimming unit coincides with the main optical axis of the first light-emitting unit; the dimming main optical axis obtained after the main optical axis of the second light-emitting unit passes through the second dimming unit is relative to the main optical axis of the second light-emitting unit, and is arranged close to the center line. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG1 is a schematic structural diagram of a display module provided in a first embodiment of the present application;

[0008] FIG2a is a schematic diagram of the imaging principle of a display module in the prior art;

[0009] FIG2 b is a schematic diagram of the imaging principle of the display module provided in an embodiment of the present application;

[0010] FIG3 a is a schematic diagram showing the brightness of a display image as seen by human eyes in a display module in the prior art;

[0011] FIG3 b is a schematic diagram of the brightness of a display image seen by human eyes in a display module provided in an embodiment of the present application;

[0012] FIG4 is a schematic structural diagram of a display module provided in a second embodiment of the present application;

[0013] FIG5 is a schematic diagram of a first structure of a display module provided in a third embodiment of the present application;

[0014] FIG6 is a schematic diagram of a second structure of a display module provided in the third embodiment of the present application;

[0015] FIG7 is a schematic diagram of a first structure of a display module provided in a fourth embodiment of the present application;

[0016] FIG8 is a schematic diagram of a second structure of a display module provided in the fourth embodiment of the present application;

[0017] FIG9 is a schematic structural diagram of a display module provided in a fifth embodiment of the present application;

[0018] FIG10 is a schematic structural diagram of a display module provided in a sixth embodiment of the present application;

[0019] FIG11 is a schematic structural diagram of a display module provided in the seventh embodiment of the present application. Modes for Carrying Out the Invention

[0020] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The described technical solutions are only used to explain and illustrate the ideas of the present application and should not be regarded as limiting the scope of protection of the present application.

[0021] An embodiment of the present application provides a display module, which includes: a light-emitting functional layer and a plurality of dimming units, the light-emitting functional layer includes a substrate and a plurality of light-emitting units, the plurality of light-emitting units are arranged on the substrate and are arranged in an array, the light-emitting functional layer includes a central display area and two edge display areas, the light-emitting functional layer is sequentially arranged in the order of the edge display area, the central display area and the edge display area in a first direction, the plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit, the first light-emitting unit is located in the central display area, and the second light-emitting unit is located in the edge display area; the plurality of dimming units The element is arranged on the light-emitting surface side of the light-emitting functional layer, and includes a first dimming unit and a second dimming unit, the first dimming unit corresponds to the first light-emitting unit, and the second dimming unit corresponds to the second light-emitting unit; wherein, on the plane where the light-emitting functional layer is located, the light-emitting functional layer has a center line perpendicular to the first direction; the dimming main optical axis obtained after the main optical axis of the first light-emitting unit passes through the first dimming unit coincides with the main optical axis of the first light-emitting unit; the dimming main optical axis obtained after the main optical axis of the second light-emitting unit passes through the second dimming unit is relative to the main optical axis of the second light-emitting unit, and is arranged close to the center line.

[0022] The first dimming unit includes a first lens, the second dimming unit includes a second lens, the first lens and the second lens have the same structure, the multiple light-emitting units include a first light-emitting unit group and a second light-emitting unit group, the first light-emitting unit group includes a plurality of first light-emitting units arranged at intervals along the second direction, the second light-emitting unit group includes a plurality of second light-emitting units arranged at intervals along the second direction, and the edge display area includes a plurality of second light-emitting unit groups arranged in sequence along the first direction; the first direction and the second direction are both located on the plane where the light-emitting functional layer is located, and the second direction is perpendicular to the first direction; wherein, the center of the second lens is offset from the main optical axis of the second light-emitting unit close to the center line in the first direction by a distance w, and the offset distances w of the main optical axes corresponding to the multiple second light-emitting units in the same second light-emitting unit group relative to the center of the corresponding second lens are all equal.

[0023] In the first direction, any two second light-emitting unit groups are included, wherein the offset spacing w of the second light-emitting units in the second light-emitting unit group farther away from the central display area is greater than the offset spacing w of the second light-emitting units in another second light-emitting unit group closer to the central display area.

[0024] According to the following formula, in the kth group of the second light-emitting units arranged in a direction away from the central display area, the offset spacing ,

[0025] Among them, a represents the dimming main optical axis obtained after the main optical axis of the second light-emitting unit in the second light-emitting unit group farthest from the central display area passes through the second dimming unit, the orthographic projection of the main optical axis of the second light-emitting unit on the substrate, and the target spacing away from the center line in the first direction, m represents the total number of the light-emitting units arranged in the light-emitting functional layer along the first direction, and k represents the kth second light-emitting unit group arranged in the direction away from the central display area.

[0026] The two edge display areas are respectively the first display area and the second display area, the central display area is located between the first display area and the second display area, the second light-emitting unit located in the first display area and the second light-emitting unit located in the second display area are mirror-symmetrical about the center line; the distribution of the offset angle of the dimming main optical axis emitted by the second lens located on both sides of the center line with respect to the main optical axis of the second light-emitting unit corresponding to the second lens is mirror-symmetrical about the center line.

[0027] Both the first display area and the second display area include multiple sub-display areas arranged at intervals along the first direction, and each of the multiple sub-display areas is provided with N second light-emitting unit groups. The offset spacing w of the multiple second light-emitting units located in the same sub-display area is equal, and N is a positive integer greater than or equal to 2; and in the first direction, the offset spacing w of the second light-emitting units in the sub-display area that is farther away from the central display area is larger.

[0028] When N is an odd number, the offset spacing w of multiple second light-emitting units in the same sub-display area is equal to the offset spacing w of the second light-emitting units in the second light-emitting unit group located in the center of the sub-display area; when N is an even number, the offset spacing w of multiple second light-emitting units in the same sub-display area is equal to the average value of the offset spacing w of the second light-emitting units in the N second light-emitting unit groups located in the sub-display area.

[0029] The sub-display area that is farther away from the central display area has more second light-emitting unit groups.

[0030] The first light emitting unit group corresponds to at least one of the first lenses, and the second light emitting unit group corresponds to at least one of the second lenses.

[0031] The orthographic projection of the first lens on the substrate covers the orthographic projections of multiple first light-emitting units in the first light-emitting unit group on the substrate, and the orthographic projection of the second lens on the substrate covers the orthographic projections of multiple second light-emitting units in the second light-emitting unit group on the substrate.

[0032] The first lens includes a first sub-lens and a second sub-lens, the orthographic projection of the first sub-lens on the substrate covers the orthographic projections of at least two of the first light-emitting units in the first light-emitting unit group on the substrate, and the orthographic projection of the second sub-lens on the substrate covers the orthographic projection of one of the first light-emitting units in the first light-emitting unit group on the substrate; and / or, the second lens includes a third sub-lens and a fourth sub-lens, the orthographic projection of the third sub-lens on the substrate covers the orthographic projections of at least two of the second light-emitting units in the second light-emitting unit group on the substrate, and the orthographic projection of the fourth sub-lens on the substrate covers the orthographic projection of one of the second light-emitting units in the second light-emitting unit group on the substrate.

[0033] The shape of the lens includes at least one of a cylindrical shape, a truncated cone shape, a conical shape, and a trapezoidal shape.

[0034] The first dimming unit includes a first lens, and the second dimming unit includes a second lens. The vector vertices of the first lens and the second lens are in different positions. The orthographic projection of the vector vertex of the first lens on the substrate coincides with the orthographic projection of the principal optical axis of the first light-emitting unit on the substrate. The orthographic projection of the vector vertex of the second lens on the substrate is located on a side of the orthographic projection of the principal optical axis of the second light-emitting unit on the substrate that is close to the center line.

[0035] The present application also provides a field of view display device for use in a vehicle, wherein the field of view display device includes a display module and a windshield, wherein the windshield is used to reflect light from the display module to the eye box, and the display module includes:

[0036] A light-emitting functional layer, comprising a substrate and a plurality of light-emitting units, wherein the plurality of light-emitting units are disposed on the substrate and arranged in an array, the light-emitting functional layer comprising a central display area and two edge display areas, the light-emitting functional layer being sequentially arranged in the first direction in the order of the edge display areas, the central display area, and the edge display areas, the plurality of light-emitting units comprising a first light-emitting unit and a second light-emitting unit, the first light-emitting unit being located in the central display area, and the second light-emitting unit being located in the edge display area;

[0037] Multiple dimming units are arranged on the light-emitting surface side of the light-emitting functional layer, including a first dimming unit and a second dimming unit, the first dimming unit corresponds to the first light-emitting unit, and the second dimming unit corresponds to the second light-emitting unit; wherein, on the plane where the light-emitting functional layer is located, the light-emitting functional layer has a center line perpendicular to the first direction; the dimming main optical axis obtained after the main optical axis of the first light-emitting unit passes through the first dimming unit coincides with the main optical axis of the first light-emitting unit; the dimming main optical axis obtained after the main optical axis of the second light-emitting unit passes through the second dimming unit is relative to the main optical axis of the second light-emitting unit, and is arranged close to the center line.

[0038] The first dimming unit includes a first lens, the second dimming unit includes a second lens, the first lens and the second lens have the same structure, the multiple light-emitting units include a first light-emitting unit group and a second light-emitting unit group, the first light-emitting unit group includes a plurality of first light-emitting units arranged at intervals along the second direction, the second light-emitting unit group includes a plurality of second light-emitting units arranged at intervals along the second direction, and the edge display area includes a plurality of second light-emitting unit groups arranged in sequence along the first direction; the first direction and the second direction are both located on the plane where the light-emitting functional layer is located, and the second direction is perpendicular to the first direction; wherein, the center of the second lens is offset from the main optical axis of the second light-emitting unit close to the center line in the first direction by a distance w, and the offset distances w of the main optical axes corresponding to the multiple second light-emitting units in the same second light-emitting unit group relative to the center of the corresponding second lens are all equal.

[0039] In the first direction, any two second light-emitting unit groups are included, wherein the offset spacing w of the second light-emitting units in the second light-emitting unit group farther away from the central display area is greater than the offset spacing w of the second light-emitting units in another second light-emitting unit group closer to the central display area.

[0040] According to the following formula, in the kth group of the second light-emitting units arranged in a direction away from the central display area, the offset spacing ,

[0041] Among them, a represents the dimming main optical axis obtained after the main optical axis of the second light-emitting unit in the second light-emitting unit group farthest from the central display area passes through the second dimming unit, the orthographic projection of the main optical axis of the second light-emitting unit on the substrate, and the target spacing away from the center line in the first direction, m represents the total number of the light-emitting units arranged in the light-emitting functional layer along the first direction, and k represents the kth second light-emitting unit group arranged in the direction away from the central display area.

[0042] The two edge display areas are respectively the first display area and the second display area, the central display area is located between the first display area and the second display area, the second light-emitting unit located in the first display area and the second light-emitting unit located in the second display area are mirror-symmetrical about the center line; the distribution of the offset angle of the dimming main optical axis emitted by the second lens located on both sides of the center line with respect to the main optical axis of the corresponding second light-emitting unit is mirror-symmetrical about the center line.

[0043] Both the first display area and the second display area include multiple sub-display areas arranged at intervals along the first direction, and each of the multiple sub-display areas is provided with N second light-emitting unit groups. The offset spacing w of the multiple second light-emitting units located in the same sub-display area is equal, and N is a positive integer greater than or equal to 2; and in the first direction, the offset spacing w of the second light-emitting units in the sub-display area that is farther away from the central display area is larger.

[0044] When N is an odd number, the offset spacing w of multiple second light-emitting units in the same sub-display area is equal to the offset spacing w of the second light-emitting units in the second light-emitting unit group located in the center of the sub-display area; when N is an even number, the offset spacing w of multiple second light-emitting units in the same sub-display area is equal to the average value of the offset spacing w of the second light-emitting units in the N second light-emitting unit groups located in the sub-display area.

[0045] In the display module and field of view display device for use in a vehicle provided by the present application, the dimming main optical axis obtained by passing the main optical axis of the first light-emitting unit through the first dimming unit is coincident with the orthographic projection of the main optical axis of the first light-emitting unit on the substrate, and the dimming main optical axis obtained by passing the main optical axis of the second light-emitting unit through the second dimming unit is arranged close to the center line relative to the orthographic projection of the main optical axis of the second dimming unit on the substrate; so that within a narrow viewing angle range, the brightness of the light-emitting functional layer at a viewing angle of 10° is approximately 65% ​​of that at 0°, relative to the light-emitting functional layer without the dimming unit, and the brightness uniformity of the light-emitting functional layer after the dimming unit is set is greatly improved. The overall brightness is also improved, so that the display brightness of the edge display area within the narrow viewing angle range is greater than or equal to 90% of the display brightness of the center display area.

[0046] The various embodiments provided in this application are similar, and features in different embodiments are combined with each other.

[0047] As shown in FIG1 , an embodiment of the present application provides a display module 100 comprising a light-emitting functional layer 10 and a plurality of dimming units 20. The light-emitting functional layer 10 comprises a substrate 11 and a plurality of light-emitting units 12. The plurality of light-emitting units 12 are disposed on the substrate 11 and arranged in an array. The light-emitting functional layer 10 comprises a central display area A1 and two edge display areas A2. The light-emitting functional layer 10 is sequentially arranged in the order of the edge display area A2, the central display area A1, and the edge display area A2 in a first direction X. The plurality of light-emitting units 12 comprise a first light-emitting unit 121 and a second light-emitting unit 122. The first light-emitting unit 121 is located in the central display area A1, and the second light-emitting unit 122 is located in the edge display area A2. The plurality of dimming units 20 are disposed on the light-emitting surface of the light-emitting functional layer 10. The plurality of dimming units 20 comprise a first dimming unit 21 and a second dimming unit 22. The first dimming unit 21 corresponds to the first light-emitting unit 121, and the second dimming unit 22 corresponds to the second light-emitting unit 122. In the horizontal plane where the light-emitting functional layer 10 is located, the light-emitting functional layer 10 has a center line L1 perpendicular to the first direction X. The main optical axis of the first light-emitting unit 121, obtained by passing through the first dimming unit 21, coincides with the main optical axis of the first light-emitting unit 121. The main optical axis of the second light-emitting unit 122, obtained by passing through the second dimming unit 22, is arranged close to the center line relative to the main optical axis of the second light-emitting unit 122.

[0048] In the display module provided by the present application, the main light axis obtained by passing the main light axis of the first light-emitting unit 121 through the first dimming unit 21 coincides with the main light axis of the first light-emitting unit 121. The main light axis obtained by passing the main light axis of the second light-emitting unit 122 through the second dimming unit 22 is arranged close to the center line relative to the main light axis of the second light-emitting unit 122, so that within a narrow viewing angle range, the brightness of the light-emitting functional layer at a viewing angle of 10° is about 65% of that at 0° relative to the light-emitting functional layer without the dimming unit. After the dimming unit is set, the brightness uniformity of the light-emitting functional layer is greatly improved. The overall brightness is also improved, so that the display brightness of the edge display area within the narrow viewing angle range is greater than or equal to 90% of the display brightness of the center display area.

[0049] In the embodiments of this application, the display module is a HUD display module, also known as a head-up display module, used in automobiles. A head-up display (HUD) projects instrument information (such as speed) and navigation information into the driver's field of view. The driver can see the instrument information and navigation information in front of their field of view without having to look down at the instrument panel below the steering wheel or the central control display. This improves braking reaction time in emergency situations and enhances driving safety.

[0050] In an embodiment of the present application, the first dimming unit 21 includes a first lens 21, and the second dimming unit 22 includes a second lens 22. The first lens 21 and the second lens 22 have the same structure and can be conventional convex lenses. The multiple light-emitting units 12 include a first light-emitting unit group and a second light-emitting unit group. The first light-emitting unit group includes a plurality of first light-emitting units 121 arranged at intervals along the second direction Y, and the second light-emitting unit group includes a plurality of second light-emitting units 122 arranged at intervals along the second direction Y. The edge display area A2 includes a plurality of second light-emitting unit groups arranged in sequence along the first direction X; the second direction Y is perpendicular to the first direction X. The first direction X is the width direction of the light-emitting functional layer, and the second direction Y is the length direction of the light-emitting functional layer.

[0051] The center of the second lens 22 is offset by a distance w from the principal optical axis of the second light-emitting unit 122 near the center line L1 in the first direction X. The offset distances w between the principal optical axes of the plurality of second light-emitting units 122 in the same second light-emitting unit group and the center of the corresponding second lens 22 are all equal.

[0052] In the first direction X, any two second light-emitting unit groups are included, wherein the offset spacing w of the second light-emitting units 122 in the second light-emitting unit group farther away from the central display area A1 is greater than the offset spacing w of the second light-emitting units 122 in another second light-emitting unit group closer to the central display area A1.

[0053] In the embodiment of the present application, the first lens 21 is provided in a one-to-one correspondence with the first light-emitting unit 121, and the second lens 22 is provided in a one-to-one correspondence with the second light-emitting unit 122. That is, the orthographic projection of the first lens 21 on the substrate 11 overlaps the orthographic projection of one first light-emitting unit 121 on the substrate 11. The orthographic projection of the second lens 22 on the substrate 11 overlaps the orthographic projection of one second light-emitting unit 121 on the substrate 11. Furthermore, the orthographic projection of the principal optical axis of the second lens 22 on the substrate 11 is located on the side of the orthographic projection of the principal optical axis of the second light-emitting unit 122 on the substrate 11 that is closer to the center line L1.

[0054] In an embodiment of the present application, the central display area A1 includes at least one first light-emitting unit group. Specifically, if the resolution of the light-emitting functional layer 10 is W*H, that is, the light-emitting functional layer 10 includes W rows of light-emitting units 12 spaced apart along the second direction Y and H columns of light-emitting units 12 spaced apart along the first direction X. Wherein, if H is an odd number, the central display area A1 includes an odd number of first light-emitting unit groups, for example, 1 first light-emitting unit group, 3 first light-emitting unit groups, 5 first light-emitting unit groups, 7 first light-emitting unit groups, 9 first light-emitting unit groups..., preferably, the central display area A1 includes 1 first light-emitting unit group. If H is an even number, the central display area A1 includes an even number of first light-emitting unit groups, for example, 2 first light-emitting unit groups, 4 first light-emitting unit groups, 6 first light-emitting unit groups, 8 first light-emitting unit groups, 10 first light-emitting unit groups..., preferably, the central display area A1 includes 2 first light-emitting unit groups.

[0055] In the embodiment of the present application, the two edge display areas A2 include a first display area and a second display area, and the central display area A1 is located between the first and second display areas. The multiple second light-emitting units 121 located in the first display area and the multiple second light-emitting units 121 located in the second display area are mirror-symmetrical about the center line L1. The distribution of the offset angles of the dimming light emitted by the second lenses 22 on either side of the center line L1 with respect to the primary optical axes of the corresponding second light-emitting units 122 is also mirror-symmetrical about the center line L1.

[0056] In the embodiment of the present application, the edge display area A2 includes a plurality of second light emitting unit groups arranged at intervals along the first direction X. The offset intervals w of the plurality of second light emitting units 121 in the same second light emitting unit group are equal.

[0057] In the embodiment of the present application, in the first direction X, the farther the second light emitting unit 122 is from the central display area A1 , the larger the offset distance w of the second light emitting unit 122 is.

[0058] In the embodiment of the present application, taking a light-emitting unit group with a pitch of 200 microns and a corresponding lens 20 with a diameter of 200 microns (a radius of 100 microns) as an example, the offset pitch w of the plurality of second light-emitting units 121 in the second light-emitting unit group adjacent to the central display area A1 along the first direction X is between 1.5 microns and 2.5 microns, preferably 2 microns. If the angle between the light emitted by the first light-emitting unit 121 and the central axis perpendicular to the lens 20 after passing through the lens 20 is 0 degrees, the angle between the light emitted by the second light-emitting unit 121 and the central axis perpendicular to the lens 20 after passing through the lens 20 is between 0.5 degrees and 1.5 degrees. If the pitch is 2 microns, the angle is 1 degree. Furthermore, the difference between the offset pitch w of the plurality of second light-emitting units 121 in the kth second light-emitting unit group arranged in a direction away from the central display area A1 and the offset pitch w of the plurality of second light-emitting units 121 in the k-1th second light-emitting unit group is 2 microns. Specifically, the value of the spacing can be adjusted according to the actual screen resolution, and the value range of the spacing includes 2 nanometers to 20,000 nanometers.

[0059] In the embodiment of the present application, the offset distance in the first direction close to the center line of the center of the orthographic projection of the second light-emitting unit in the kth second light-emitting unit group arranged away from the central display area A1 relative to the center of the orthographic projection of the second lens on the substrate is obtained according to the following formula: ,

[0060] Among them, a represents the dimming main optical axis obtained after the main optical axis of the second light-emitting unit 122 in the second light-emitting unit group farthest from the central display area A1 passes through the second dimming unit 22, the positive projection of the main optical axis of the second light-emitting unit 122 on the substrate 11, and the target spacing close to the center line in the first direction X, m represents the total number of light-emitting units 12 arranged at intervals in the light-emitting functional layer 10 along the first direction X, and k represents the kth second light-emitting unit group arranged in the direction away from the central display area A1.

[0061] For example, the width of the light-emitting functional layer 10 is 200 microns, and the total number m of light-emitting units 12 spaced apart along the first direction X in the light-emitting functional layer 10 is 650 (the sum of the first and second light-emitting unit groups). According to simulation results, the target pitch a of the second light-emitting units 121 in the second light-emitting unit group farthest from the central display area A1 is 5 microns. Therefore, the offset pitch w of the second light-emitting unit 121 in the second light-emitting unit group (k is 2) arranged away from the central display area A1 is 5 / (650 / 2)*1=15.4 nanometers. Different resolutions and sizes of the light-emitting functional layer 10 correspond to different values ​​of the corresponding offset pitch w. Generally speaking, the value of a / (m / 2) ranges from 2 nm to 1000 nm. For example, the value of a / (m / 2) includes 2 nm, 3 nm, 5 nm, 10 nm, 15 nm, 20 nm, 25 nm, 30 nm....100 nm, 200 nm,...500 nm, 600 nm...800 nm, 900 nm, 1000 nm, etc.

[0062] In the embodiment of the present application, the shape of the lens 20 includes at least one of a cylindrical shape, a truncated cone shape, a conical shape, and a trapezoidal shape.

[0063] In an embodiment of the present application, the display module further includes an optical imaging unit configured to transmit light emitted from the light-emitting functional layer 10 to the windshield. The light, after being reflected by the windshield, forms a virtual image at a first predetermined position. The larger the field of view angle between the eyebox and the edge of the virtual image, the larger the offset distance w of the second light-emitting unit 121 located farther from the central display area A1. The eyebox is the area where the driver's eyes are located.

[0064] As shown in FIG2a , in the existing display module, the light emitted through the first lens 21 and the light emitted through the second lens 22 are parallel light. After being reflected by the windshield, they are emitted parallel to the direction of the human eye, so that the brightness of the central display area of ​​the display image seen by the human eye is brighter, and the brightness of the edge display area of ​​the display image seen by the human eye gradually darkens.

[0065] As shown in Figure 2b, in the display module provided by the embodiment of the present application, the angle of the light emitted through the second lens 22 changes after the second light-emitting unit 121 is offset in the direction away from the central display area (emitted in the direction of the central axis of the second lens 22), and after being reflected by the windshield, it converges in the direction of the light emitted through the first lens 21. As a result, the brightness of the central display area and the edge display area of ​​the display image seen by the human eye tend to be consistent.

[0066] As shown in FIG3a , the display brightness of the display image seen by the human eye in the existing display module is as follows: when the display brightness of the central display area A1 is 120 candelas per square meter to 140 candelas per square meter, the display brightness of the edge display area A2 (exemplarily corresponding to the display brightness at ±10°) is 80 candelas per square meter to 95 candelas per square meter, that is, the display brightness of the central display area A1 is significantly different from the display brightness of the edge display area A2 (the display brightness of the edge display area A2 is less than or equal to 65% of the display brightness of the central display area A1), and the brightness uniformity of the display image seen by the human eye is poor.

[0067] As shown in FIG3b , by offsetting the second light-emitting unit 121 in the light-emitting unit 12 located in the edge display area A2 in a direction away from the central display area A1, when the display brightness of the central display area A1 is 120 candelas per square meter to 140 candelas per square meter, the display brightness of the edge display area A2 (exemplarily corresponding to the display brightness at a horizontal field of view angle of ±10°) is 120 candelas per square meter to 140 candelas per square meter, that is, the display brightness of the central display area A1 is slightly different from the display brightness of the edge display area A2, so that the brightness of the edge area and the brightness of the central area of ​​the display image seen by the eyes tend to be consistent (the display brightness of the edge display area A2 is greater than or equal to 90% of the display brightness of the central display area A1), thereby improving the brightness uniformity of the display image seen by the human eye.

[0068] As shown in FIG4 , an embodiment of the present application provides a display module 200. Display module 200 differs from display module 100 in that an edge display area A2 in display module 200 includes a first display area and a second display area spaced apart along a first direction X, and a center display area A1 is located between the first and second display areas. Both the first and second display areas include multiple sub-display areas A21 spaced apart along the first direction X. Each of the multiple sub-display areas A21 is provided with N second light-emitting unit groups, i.e., the number of second light-emitting unit groups in the multiple sub-display areas A21 is equal. The offset spacing w of the multiple second light-emitting units 121 located in the same sub-display area A21 is equal, and N is a positive integer greater than or equal to 2, for example, N is equal to 3, 4, 5, 6, 7, 8, 9, 10...15...20...25...30...50...100...

[0069] In the first direction X, the offset distance w of the second light emitting units 121 in the sub-display area A21 that is farther away from the central display area A1 is larger.

[0070] In an embodiment of the present application, when N is an odd number, the offset spacing w of multiple second light-emitting units 121 in the same sub-display area A21 is equal to the offset spacing w of the second light-emitting units 121 in the second light-emitting unit group located at the center of the sub-display area A21.

[0071] For example, the sub-display area A21 is adjacent to the central display area A1, that is, the first sub-display area A21 in the first direction X, and the sub-display area A21 includes 5 second light-emitting unit groups, then the offset spacing w of the multiple second light-emitting units 121 in the 5 second light-emitting unit groups in the sub-display area A21 is equal to the offset spacing w of the second light-emitting units 121 in the third second light-emitting unit group arranged in the sub-display area A21 along the direction away from the central display area A1.

[0072] In the embodiment of the present application, taking a light-emitting unit group with a pitch of 200 microns and a corresponding lens 20 with a diameter of 200 microns (a radius of 100 microns) as an example, the difference between the offset pitch w of the plurality of second light-emitting units 121 in the kth second light-emitting unit group and the offset pitch w of the plurality of second light-emitting units 121 in the k-1th second light-emitting unit group, arranged in a direction away from the central display area A1, is 2 microns. Therefore, the offset pitch w of the plurality of second light-emitting units 121 in the sub-display area A21 adjacent to the central display area A1 is 6 microns.

[0073] In an embodiment of the present application, when N is an even number, the offset spacing w of multiple second light-emitting units 121 in the same sub-display area A21 is equal to the average value of the offset spacing w of the second light-emitting units 121 in the N second light-emitting unit groups located in the sub-display area A21.

[0074] For example, the sub-display area A21 is adjacent to the central display area A1, that is, the first sub-display area A21 in the first direction X, and the sub-display area A21 includes 6 second light-emitting unit groups, then the offset spacing w of the multiple second light-emitting units 121 in the 6 second light-emitting unit groups in the sub-display area A21 is equal to the average value of the offset spacing w of the second light-emitting units 121 in the 6 second light-emitting unit groups in the sub-display area A21.

[0075] In the embodiment of the present application, taking a light-emitting unit group with a pitch of 200 microns and a corresponding lens 20 with a diameter of 200 microns (a radius of 100 microns) as an example, the difference between the offset pitch w of the plurality of second light-emitting units 121 in the kth second light-emitting unit group and the offset pitch w of the plurality of second light-emitting units 121 in the k-1th second light-emitting unit group, arranged in a direction away from the central display area A1, is 2 microns. Therefore, the offset pitch w of the plurality of second light-emitting units 121 in the sub-display area A21 adjacent to the central display area A1 is 7 microns.

[0076] Alternatively, when N is an even number, the offset spacing w of multiple second light-emitting units 121 in the same sub-display area A21 is equal to the average offset spacing w of the second light-emitting units 121 in two second light-emitting unit groups located at the center of the sub-display area A21.

[0077] For example, the sub-display area A21 is adjacent to the central display area A1, that is, the first sub-display area A21 in the first direction X, and the sub-display area A21 includes 6 second light-emitting unit groups, then the offset spacing w of the multiple second light-emitting units 121 in the 6 second light-emitting unit groups in the sub-display area A21 is equal to the average of the offset spacing w of the second light-emitting units 121 in the third second light-emitting unit group arranged in the sub-display area A21 along the direction away from the central display area A1 and the offset spacing w of the second light-emitting units 121 in the fourth second light-emitting unit group.

[0078] The display module 200 provided in the present application offsets multiple second light-emitting units 121 in N second light-emitting unit groups at the same interval to expand the offset step size while reducing the process accuracy by N times, thereby avoiding the phenomenon that the process accuracy cannot be achieved when multiple second light-emitting units 121 in a single second light-emitting unit group are offset due to the offset interval w being too small, thereby improving the brightness uniformity of the display module while reducing the process difficulty.

[0079] As shown in FIG5 and FIG6 , an embodiment of the present application provides a display module 300. Display module 300 differs from display module 200 in that the number of second light-emitting unit groups is greater in sub-display areas A21 farther from the central display area A1 in display module 300. That is, the number of second light-emitting unit groups in the sub-display areas A21 farther from the central display area A1 is unequal.

[0080] Specifically, the edge display area A2 of the display module 300 includes a first display area and a second display area, with the central display area A1 located between the first and second display areas. Both the first and second display areas include multiple sub-display areas A21 arranged in a direction away from the central display area A1. The first light-emitting unit group includes multiple first light-emitting units 121 arranged along a second direction Y, and the second light-emitting unit group includes multiple second light-emitting units 122 arranged along the second direction Y. The first and second light-emitting unit groups are arranged along a first direction X.

[0081] Specifically, in two adjacent sub-display areas A21 along the direction away from the central display area A1, the number of second light-emitting unit groups in the sub-display area A21 away from the central display area A1 is t more than the number of second light-emitting unit groups in the sub-display area A21 close to the central display area A1, where t is a positive integer greater than or equal to 1, for example, t is equal to 1, 2, 3, 4, 5, 6, 7, 8, 9, 10...

[0082] FIG5 exemplarily shows that the number of second light-emitting unit groups in the sub-display area A21 adjacent to the central display area A1 is 1, and the number of second light-emitting unit groups in the sub-display area A21 adjacent to the central display area A1 away from the central display area A1 is 3.

[0083] FIG6 exemplarily shows that the number of second light-emitting unit groups in a plurality of sub-display areas A21 arranged in a direction away from the central display area A1 may be increased by 1 sequentially. For example, the number of second light-emitting unit groups in the three sub-display areas A21 arranged in a direction away from the central display area A1 may be 2, 3, and 4, respectively.

[0084] Furthermore, the number of added second light-emitting unit groups in the multiple sub-display areas A21 arranged along the direction away from the central display area A1 is not equal. For example, if the number of added second light-emitting unit groups is a multiple of 2, the number of second light-emitting unit groups in the three sub-display areas A21 arranged along the direction away from the central display area A1 are 2, 4, and 8, respectively.

[0085] As shown in Figures 7 to 10, an embodiment of the present application provides a display module 400. Display module 400 differs from display module 100 in that: in display module 400, a first light-emitting unit group corresponds to n1 first lenses 21, and a second light-emitting unit group corresponds to n2 second lenses 22. n1 and n2 may be equal or unequal, and both n1 and n2 are positive integers greater than or equal to 2. For example, n1 is equal to 3, 4, 5, 6, 7, 8, 9, 10..., and n2 is equal to 3, 4, 5, 6, 7, 8, 9, 10.... That is, the first light-emitting unit group corresponds to at least two first lenses 21, and the second light-emitting unit group corresponds to at least two second lenses 22. The first light-emitting unit group includes a plurality of first light-emitting units 121 arranged along a second direction Y, and the second light-emitting unit group includes a plurality of second light-emitting units 122 arranged along the second direction Y. The first and second light-emitting unit groups are arranged along a first direction X.

[0086] FIG. 7 exemplarily shows that the first light emitting unit group corresponds to two first lenses 21 , and the second light emitting unit group corresponds to two second lenses 22 .

[0087] FIG. 8 exemplarily shows that the first light emitting unit group corresponds to two first lenses 21 , and the second light emitting unit group corresponds to three second lenses 22 .

[0088] In the embodiment of the present application, the orthographic projection of the first lens 21 on the substrate 11 covers the orthographic projections of m1 first light-emitting units 121 in the first light-emitting unit group on the substrate 11, and the orthographic projection of the second lens 22 on the substrate 11 covers the orthographic projections of the principal optical axes of m2 second light-emitting units 121 in the second light-emitting unit group on the substrate 11. m1 and m2 may be equal or unequal, and both m1 and m2 are positive integers greater than or equal to 2. For example, m1 is equal to 3, 4, 5, 6, 7, 8, 9, 10..., and m2 is equal to 3, 4, 5, 6, 7, 8, 9, 10...

[0089] For example, the orthographic projection of the first lens 21 on the substrate 11 covers the orthographic projections of the two first light-emitting units 121 in the first light-emitting unit group on the substrate 11, and the orthographic projection of the second lens 22 on the substrate 11 covers the orthographic projections of the main optical axes of the two second light-emitting units 121 in the second light-emitting unit group on the substrate 11.

[0090] For example, the orthographic projection of the first lens 21 on the substrate 11 covers the orthographic projections of the two first light-emitting units 121 in the first light-emitting unit group on the substrate 11, and the orthographic projection of the second lens 22 on the substrate 11 covers the orthographic projections of the main optical axes of the three second light-emitting units 121 in the second light-emitting unit group on the substrate 11.

[0091] Specifically, the orthographic projection of the first lens 21 on the substrate 11 covers the orthographic projection of at least two first light-emitting units 121 in the first light-emitting unit group on the substrate 11, and the orthographic projection of the second lens 22 on the substrate 11 covers the orthographic projection of the main optical axis of at least two second light-emitting units 121 in the second light-emitting unit group on the substrate 11.

[0092] As shown in FIG9 , an embodiment of the present application provides a display module 500. The difference between display module 500 and display module 100 is that: in display module 500, the first lens 21 includes a first sub-lens 211 and a second sub-lens 212. The orthographic projection of the first sub-lens 211 on the substrate 11 covers the orthographic projections of at least two first light-emitting units 121 in the first light-emitting unit group on the substrate 11, and the orthographic projection of the second sub-lens 212 on the substrate 11 covers the orthographic projection of one first light-emitting unit 121 in the first light-emitting unit group on the substrate 11. And / or, the second lens 22 includes a third sub-lens 221 and a fourth sub-lens 222. The orthographic projection of the third sub-lens 221 on the substrate 11 covers the orthographic projections of the principal optical axes of at least two second light-emitting units 121 in the second light-emitting unit group on the substrate 11, and the orthographic projection of the fourth sub-lens 222 on the substrate 11 covers the orthographic projection of the principal optical axis of one second light-emitting unit 121 in the second light-emitting unit group on the substrate 11.

[0093] FIG9 exemplarily shows that the orthographic projection of the first sub-lens 211 on the substrate 11 covers the orthographic projections of the two first light-emitting units 121 in the first light-emitting unit group on the substrate 11, and the orthographic projection of the second sub-lens 212 on the substrate 11 covers the orthographic projection of one first light-emitting unit 121 in the first light-emitting unit group on the substrate 11. The orthographic projection of the third sub-lens 221 on the substrate 11 covers the orthographic projections of the principal optical axes of the two second light-emitting units 121 in the second light-emitting unit group on the substrate 11, and the orthographic projection of the fourth sub-lens 222 on the substrate 11 covers the orthographic projection of the principal optical axis of one second light-emitting unit 121 in the second light-emitting unit group on the substrate 11.

[0094] As shown in FIG10 , an embodiment of the present application provides a display module 600. The difference between display module 600 and display module 100 is that in display module 600, the multiple first light-emitting units 121 in the first light-emitting unit group correspond to one first lens 21, and the multiple second light-emitting units 122 in the second light-emitting unit group correspond to one second lens 22. Specifically, the orthographic projection of the first lens 21 on the substrate 11 covers the orthographic projection of the multiple first light-emitting units 121 in the first light-emitting unit group on the substrate 11, and the orthographic projection of the second lens 22 on the substrate 11 covers the orthographic projection of the principal optical axes of the multiple second light-emitting units 121 in the second light-emitting unit group on the substrate 11.

[0095] The shapes of the plurality of first lenses 21 may be the same or different, the shapes of the plurality of second lenses 22 may be the same or different, and the shapes of the first lens 21 and the second lens 22 may be the same or different.

[0096] As shown in FIG11 , an embodiment of the present application provides a display module 700. The difference between display module 700 and display module 100 is that, in display module 700, a first lens 21 is provided in a one-to-one correspondence with a first light-emitting unit 121, and a second lens 22 is provided in a one-to-one correspondence with a second light-emitting unit 122. The vector vertices Q of the first lens 21 and the second lens 22 are located at different positions, and the orthographic projection of the vector vertex Q of the first lens 21 on the substrate 11 coincides with the orthographic projection of the principal optical axis of the first light-emitting unit 121 on the substrate 11. The orthographic projection of the vector vertex Q of the second lens 22 on the substrate 11 is located on the side of the orthographic projection of the principal optical axis L2 of the second light-emitting unit 122 on the substrate 11 that is closer to the center line L1. That is, by adjusting the relative positions of the vector vertices Q of the second lenses 22 located on both sides of the center line L1, the distribution of the offset angles of the principal optical axes of the light rays emitted by the second lenses 22 located on both sides of the center line L1 is made mirror-symmetrical about the center line L1.

[0097] The shapes of the plurality of first lenses 21 may be the same or different, the shapes of the plurality of second lenses 22 may be the same or different, and the shapes of the first lens 21 and the second lens 22 may be the same or different.

[0098] On the other hand, an embodiment of the present application also provides a field of view display device for use in a vehicle, which includes the above-mentioned display module and a windshield, and the windshield is used to reflect light from the display module to the eye box, which is the area where the driver's eyes are located.

[0099] The above is a detailed introduction to a display module and a field of view display device for use in a vehicle provided in the embodiments of the present application. The description of the above embodiments is only used to help understand the core idea of ​​the present application, and the above description should not be understood as limiting the scope of protection of the present application.

Claims

1. A display module, comprising: A light-emitting functional layer, comprising a substrate and a plurality of light-emitting units, wherein the plurality of light-emitting units are disposed on the substrate and arranged in an array, wherein the light-emitting functional layer comprises a central display area and two edge display areas, wherein the light-emitting functional layer is sequentially arranged in the first direction in the order of the edge display area, the central display area, and the edge display area, wherein the plurality of light-emitting units comprise a first light-emitting unit and a second light-emitting unit, wherein the first light-emitting unit is located in the central display area, and the second light-emitting unit is located in the edge display area; A plurality of dimming units are arranged on one side of the light emitting surface of the light emitting functional layer, including a first dimming unit and a second dimming unit, wherein the first dimming unit corresponds to the first light emitting unit, and the second dimming unit corresponds to the second light emitting unit; Among them, on the plane where the light-emitting functional layer is located, the light-emitting functional layer has a center line perpendicular to the first direction; the dimming main optical axis obtained after the main optical axis of the first light-emitting unit passes through the first dimming unit coincides with the main optical axis of the first light-emitting unit; the dimming main optical axis obtained after the main optical axis of the second light-emitting unit passes through the second dimming unit is arranged close to the center line relative to the main optical axis of the second light-emitting unit.

2. The display module according to claim 1, wherein: The first dimming unit includes a first lens, the second dimming unit includes a second lens, the first lens and the second lens have the same structure, the plurality of light-emitting units include a first light-emitting unit group and a second light-emitting unit group, the first light-emitting unit group includes a plurality of the first light-emitting units arranged at intervals along a second direction, the second light-emitting unit group includes a plurality of the second light-emitting units arranged at intervals along the second direction, the edge display area includes a plurality of groups of the second light-emitting unit groups arranged in sequence along the first direction; the first direction and the second direction are both located on the plane where the light-emitting functional layer is located, and the second direction is perpendicular to the first direction; Among them, the offset spacing of the center of the second lens relative to the main optical axis of the second light-emitting unit close to the center line in the first direction is w, and the offset spacing w of the main optical axes corresponding to multiple second light-emitting units in the same second light-emitting unit group relative to the corresponding center of the second lens is equal.

3. The display module according to claim 2, wherein: In the first direction, any two of the second light-emitting unit groups are included, wherein the offset spacing w of the second light-emitting units in the second light-emitting unit group farther away from the central display area is greater than the offset spacing w of the second light-emitting units in another second light-emitting unit group closer to the central display area.

4. The display module according to claim 2, wherein: According to the following formula, in the kth second light-emitting unit group arranged in a direction away from the central display area, the offset spacing , Among them, a represents the dimming main optical axis obtained after the main optical axis of the second light-emitting unit in the second light-emitting unit group farthest from the central display area passes through the second dimming unit, relative to the orthographic projection of the main optical axis of the second light-emitting unit on the substrate, and the target spacing away from the center line in the first direction, m represents the total number of the light-emitting units arranged at intervals in the light-emitting functional layer along the first direction, and k represents the kth second light-emitting unit group arranged in the direction away from the central display area.

5. The display module according to claim 2, wherein: The two edge display areas are respectively a first display area and a second display area, the central display area is located between the first display area and the second display area, and the second light-emitting unit located in the first display area is mirror-symmetrical with the second light-emitting unit located in the second display area about the center line; The distribution of the offset angles of the dimming main optical axes emitted by the second lenses located on both sides of the center line with respect to the main optical axis of the second light-emitting unit corresponding to the second lenses is arranged in a mirror-symmetrical manner with respect to the center line.

6. The display module according to claim 5, wherein: The first display area and the second display area each include a plurality of sub-display areas arranged at intervals along the first direction, each of the plurality of sub-display areas is provided with N second light-emitting unit groups, the offset spacings w of the plurality of second light-emitting units in the same sub-display area are all equal, and N is a positive integer greater than or equal to 2; Furthermore, in the first direction, the offset distance w of the second light emitting units in the sub-display area that is farther away from the central display area is larger.

7. The display module according to claim 6, wherein: When N is an odd number, the offset spacing w of the plurality of second light-emitting units in the same sub-display area is equal to the offset spacing w of the second light-emitting units in the second light-emitting unit group located at the center of the sub-display area; When N is an even number, the offset spacing w of the plurality of second light emitting units in the same sub-display area is equal to an average value of the offset spacing w of the second light emitting units in N second light emitting unit groups located in the sub-display area.

8. The display module according to claim 6, wherein: The sub-display area that is farther from the central display area has more second light emitting unit groups.

9. The display module according to claim 2, wherein: The first light-emitting unit group corresponds to at least one of the first lenses, and the second light-emitting unit group corresponds to at least one of the second lenses.

10. The display module according to claim 9, wherein: The orthographic projection of the first lens on the substrate covers the orthographic projections of multiple first light-emitting units in the first light-emitting unit group on the substrate, and the orthographic projection of the second lens on the substrate covers the orthographic projections of multiple second light-emitting units in the second light-emitting unit group on the substrate.

11. The display module according to claim 9, wherein: The first lens includes a first sub-lens and a second sub-lens, the orthographic projection of the first sub-lens on the substrate covers the orthographic projections of at least two of the first light-emitting units in the first light-emitting unit group on the substrate, and the orthographic projection of the second sub-lens on the substrate covers the orthographic projection of one of the first light-emitting units in the first light-emitting unit group on the substrate; And / or, the second lens includes a third sub-lens and a fourth sub-lens, the orthographic projection of the third sub-lens on the substrate covers the orthographic projections of at least two of the second light-emitting units in the second light-emitting unit group on the substrate, and the orthographic projection of the fourth sub-lens on the substrate covers the orthographic projection of one of the second light-emitting units in the second light-emitting unit group on the substrate.

12. The display module according to claim 1, wherein: The shape of the lens includes at least one of a cylindrical shape, a truncated cone shape, a conical shape, and a trapezoidal shape.

13. The display module according to claim 1, wherein: The first dimming unit includes a first lens, and the second dimming unit includes a second lens. The vector vertices of the first lens and the second lens have different positions. The orthographic projection of the vector vertex of the first lens on the substrate coincides with the orthographic projection of the principal optical axis of the first light-emitting unit on the substrate, and the orthographic projection of the vector vertex of the second lens on the substrate is located on a side of the orthographic projection of the principal optical axis of the second light-emitting unit on the substrate that is close to the center line.

14. A field of view display device for use in a vehicle, wherein: The field of view display device includes a display module and a windshield, wherein the windshield is used to reflect light from the display module to the eye box, and the display module includes: A light-emitting functional layer, comprising a substrate and a plurality of light-emitting units, wherein the plurality of light-emitting units are disposed on the substrate and arranged in an array, wherein the light-emitting functional layer comprises a central display area and two edge display areas, wherein the light-emitting functional layer is sequentially arranged in the first direction in the order of the edge display area, the central display area, and the edge display area, wherein the plurality of light-emitting units comprise a first light-emitting unit and a second light-emitting unit, wherein the first light-emitting unit is located in the central display area, and the second light-emitting unit is located in the edge display area; A plurality of dimming units are arranged on one side of the light emitting surface of the light emitting functional layer, including a first dimming unit and a second dimming unit, wherein the first dimming unit corresponds to the first light emitting unit, and the second dimming unit corresponds to the second light emitting unit; Among them, on the plane where the light-emitting functional layer is located, the light-emitting functional layer has a center line perpendicular to the first direction; the dimming main optical axis obtained after the main optical axis of the first light-emitting unit passes through the first dimming unit coincides with the main optical axis of the first light-emitting unit; the dimming main optical axis obtained after the main optical axis of the second light-emitting unit passes through the second dimming unit is arranged close to the center line relative to the main optical axis of the second light-emitting unit.

15. The field of view display device for a vehicle according to claim 14, wherein: The first dimming unit includes a first lens, the second dimming unit includes a second lens, the first lens and the second lens have the same structure, the plurality of light-emitting units include a first light-emitting unit group and a second light-emitting unit group, the first light-emitting unit group includes a plurality of the first light-emitting units arranged at intervals along a second direction, the second light-emitting unit group includes a plurality of the second light-emitting units arranged at intervals along the second direction, the edge display area includes a plurality of groups of the second light-emitting unit groups arranged in sequence along the first direction; the first direction and the second direction are both located on the plane where the light-emitting functional layer is located, and the second direction is perpendicular to the first direction; Among them, the offset spacing of the center of the second lens relative to the main optical axis of the second light-emitting unit close to the center line in the first direction is w, and the offset spacing w of the main optical axes corresponding to multiple second light-emitting units in the same second light-emitting unit group relative to the corresponding center of the second lens is equal.

16. The field of view display device for a vehicle according to claim 15, wherein: In the first direction, any two of the second light-emitting unit groups are included, wherein the offset spacing w of the second light-emitting units in the second light-emitting unit group farther away from the central display area is greater than the offset spacing w of the second light-emitting units in another second light-emitting unit group closer to the central display area.

17. The field of view display device for a vehicle according to claim 15, wherein: According to the following formula, in the kth second light-emitting unit group arranged in a direction away from the central display area, the offset spacing , Among them, a represents the dimming main optical axis obtained after the main optical axis of the second light-emitting unit in the second light-emitting unit group farthest from the central display area passes through the second dimming unit, relative to the orthographic projection of the main optical axis of the second light-emitting unit on the substrate, and the target spacing away from the center line in the first direction, m represents the total number of the light-emitting units arranged at intervals in the light-emitting functional layer along the first direction, and k represents the kth second light-emitting unit group arranged in the direction away from the central display area.

18. The field of view display device for a vehicle according to claim 15, wherein: The two edge display areas are respectively a first display area and a second display area, the central display area is located between the first display area and the second display area, and the second light-emitting unit located in the first display area is mirror-symmetrical with the second light-emitting unit located in the second display area about the center line; The distribution of the offset angles of the dimming main optical axes emitted by the second lenses located on both sides of the center line with respect to the main optical axis of the second light-emitting unit corresponding to the second lenses is arranged in a mirror-symmetrical manner with respect to the center line.

19. The field of view display device for a vehicle according to claim 18, wherein: The first display area and the second display area each include a plurality of sub-display areas arranged at intervals along the first direction, each of the plurality of sub-display areas is provided with N second light-emitting unit groups, the offset spacings w of the plurality of second light-emitting units in the same sub-display area are all equal, and N is a positive integer greater than or equal to 2; Furthermore, in the first direction, the offset distance w of the second light emitting units in the sub-display area that is farther away from the central display area is larger.

20. The field of view display device for a vehicle according to claim 19, wherein: When N is an odd number, the offset spacing w of the plurality of second light-emitting units in the same sub-display area is equal to the offset spacing w of the second light-emitting units in the second light-emitting unit group located at the center of the sub-display area; When N is an even number, the offset spacing w of the plurality of second light emitting units in the same sub-display area is equal to an average value of the offset spacing w of the second light emitting units in N second light emitting unit groups located in the sub-display area.

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