WO2022213990A1 - 一种oled灯片及照明装置 - Google Patents

一种oled灯片及照明装置 Download PDF

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Publication number
WO2022213990A1
WO2022213990A1 PCT/CN2022/085345 CN2022085345W WO2022213990A1 WO 2022213990 A1 WO2022213990 A1 WO 2022213990A1 CN 2022085345 W CN2022085345 W CN 2022085345W WO 2022213990 A1 WO2022213990 A1 WO 2022213990A1
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WIPO (PCT)
Prior art keywords
light
area
emitting unit
peripheral
display
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PCT/CN2022/085345
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English (en)
French (fr)
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WO2022213990A9 (zh
Inventor
鲁天星
张国辉
许显斌
朱映光
于倩倩
康建喜
王静
谢静
胡永岚
董艳波
Original Assignee
固安翌光科技有限公司
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Application filed by 固安翌光科技有限公司 filed Critical 固安翌光科技有限公司
Priority to US18/283,938 priority Critical patent/US20240159370A1/en
Priority to EP22784056.8A priority patent/EP4296563A1/en
Publication of WO2022213990A1 publication Critical patent/WO2022213990A1/zh
Publication of WO2022213990A9 publication Critical patent/WO2022213990A9/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/503—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text
    • B60Q1/5035—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text electronic displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F21S43/145—Surface emitters, e.g. organic light emitting diodes [OLED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F21Y2115/15—Organic light-emitting diodes [OLED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • the present disclosure generally relates to the technical field of lighting OLEDs, and in particular, to an OLED light sheet and a lighting device.
  • OLEDs are gradually gaining acceptance in the automotive field. With the improvement of the requirements for intelligent and comfortable lamps in automobiles, the design space of lighting devices for automobile lamps is compressed, and the number of OLEDs is gradually reduced, but OLEDs are required to display more and more content. At the same time, in the car In the light distribution standard of lamps, there are minimum light distribution requirements; therefore, the conditions and environment of OLED lights are becoming more and more severe, but the display and light distribution requirements are not reduced, and there are even more design requirements on the display; therefore Existing OLED lamps have been difficult to meet the design requirements of lighting devices for OLED vehicle lamps.
  • an OLED light sheet the display area of which includes:
  • At least one display main area is regular in shape and is formed by splicing several main light-emitting units with the same shape;
  • the display peripheral area is composed of a peripheral I area and/or a peripheral II area, the peripheral I area is formed by several first peripheral light-emitting units with regular shapes, and the peripheral II area is formed by several II peripheral light-emitting units
  • the shape of the first peripheral light-emitting unit or the second peripheral light-emitting unit is the same as that of the main light-emitting unit.
  • the distance between adjacent light-emitting units in the display area is D-ne ⁇ D-d ; wherein D is the distinguishable distance of the human eye, which satisfies the following formula:
  • L is the minimum distance between people and vehicles; ⁇ is the main light-emitting wavelength of the main light-emitting unit; n is the refractive index of the pupil of the human eye; R is the set radius of the pupil of the human eye.
  • the side length of the main light-emitting unit and/or the first peripheral light-emitting unit is greater than or equal to 5* D .
  • the shape of the main light-emitting unit is an n-sided shape or a figure formed by cutting n-sided shapes, and n ⁇ 3; the main light-emitting unit is composed of any one of polygonal pixels or special-shaped pixels, Two or more combinations are formed; the main light-emitting unit is composed of at least 3 adjacent pixels, and the driving voltage of each pixel in the main light-emitting unit is completely different or partially different, so that the light-emitting unit forms a three-dimensional lighting pattern.
  • the shape of the first peripheral light-emitting unit is an n-gon; the shape of the second peripheral light-emitting unit is at least one of an n-gon or a figure formed by cutting the n-gon, n ⁇ 3.
  • the corners of the main light-emitting unit and/or the first peripheral light-emitting unit and/or the second peripheral light-emitting unit are rounded, and the area of the rounded corner removal area is the same as the rounded corners
  • the area ratio of the light-emitting units after is less than or equal to 0.25.
  • a fractal pattern is formed between the display main body region and the main light-emitting unit.
  • the area of the largest pixel in the second peripheral light-emitting unit and/or the area ratio of the largest pixel area in the first peripheral light-emitting unit to the largest pixel in the main light-emitting unit is in the range of 0.8-1.2.
  • the present application provides a lighting device, the lighting device comprising:
  • a light-reflecting structure, a light-emitting cavity is formed between the light-reflecting structure and the OLED light sheet; the light-reflecting structure has at least two light-reflecting mirror surfaces located in the light-emitting cavity.
  • the display area is a flat area, and the display area has a light emitting direction perpendicular to its surface; the display area along the light emitting direction of the display area is on the light projection area of any one of the reflective mirror surfaces
  • the ratio of the light projection area is greater than or equal to 70%; the light projection area ratio is the ratio of the light projection area area of the display area on the reflector surface along its light outgoing direction to its own area.
  • the display area of the OLED light sheet is designed to include at least one display main area and a display peripheral area; wherein, the display main area has a regular shape and is formed by splicing several main light-emitting units with the same shape, Therefore, the main display area can realize a variety of display elements, such as triangles, quadrilaterals, diamonds, trapezoids, hexagons and other graphic units can be spliced, so as to realize a variety of modes, such as steering, rhythm, warning, welcome, etc. .
  • the display peripheral area is composed of peripheral I area and peripheral II area, so it can realize the full-screen display of OLED lamps, which not only meets the shape requirements of automobile tail lamps, but also under the design requirements that the number and position of OLED lamps are limited. , which improves the utilization rate of brightness space and area, and can meet the difficult design requirements of lighting devices.
  • the distance between the light-emitting units in the display area is limited, so that the distance between the light-emitting units in the display area cannot be perceived by the human eye, thereby ensuring the integrity of the graphics.
  • the side length of the light-emitting unit is set to be more than 5 times the distinguishable distance of the human eye, so that the light-emitting pattern can be better perceived by the human eye.
  • a light-emitting cavity is formed between the OLED light sheet and the light-reflecting structure, and the light-reflecting structure has at least two reflecting mirror surfaces located in the light-emitting cavity, and each reflecting mirror surface can reflect The light emitted by the OLED light sheet and the reflected light of other reflective mirror surfaces, when the OLED light sheet is formed with one light-emitting shape, the lighting device of the present application can form multiple light-emitting shapes through specular reflection, thereby forming multiple lighting device modeling effects, At the same time, the light distribution intensity is improved, and the space used inside the lighting device is improved; therefore, compared with other lighting devices, under the same light distribution intensity, the solution correspondingly reduces the number of light sources used, thereby effectively reducing the overall cost.
  • Figures 1a-1b are schematic structural diagrams of Example 1 of the application.
  • FIG. 2 is a schematic structural diagram of the main light-emitting unit in Embodiment 1 of the present application;
  • FIG. 3 is a schematic structural diagram of the first peripheral light-emitting unit in Embodiment 1 of the present application.
  • FIG. 4 is another schematic structural diagram of the first peripheral light-emitting unit in Embodiment 1 of the application;
  • Embodiment 2 of the application is a schematic structural diagram of Embodiment 2 of the application.
  • Embodiment 6 is a schematic structural diagram of Embodiment 3 of the application.
  • Embodiment 7 is a schematic structural diagram of Embodiment 4 of the application.
  • Embodiment 8 is a schematic structural diagram of Embodiment 5 of the application.
  • FIG. 9 is a schematic diagram of the first structure of the OLED light sheet in Embodiment 6 of the present application.
  • FIG. 10 is a schematic diagram of the second structure of the OLED light sheet in Example 6 of the application.
  • FIG. 11 is a schematic diagram of the third structure of the OLED light sheet in Example 6 of the application.
  • Example 12 is a schematic structural diagram of an OLED lamp sheet in Example 7 of the application.
  • Example 13 is a schematic structural diagram of the rounded corners of the OLED light sheet in Example 7 of the application.
  • Example 14 is a schematic diagram of the first structure of the OLED light sheet in Example 8 of the application.
  • FIG. 15 is a schematic diagram of the second structure of the OLED light sheet in Example 8 of the application.
  • Example 9 is a schematic structural diagram of a certain implementation manner of Example 9 of the application.
  • Example 17 is a schematic structural diagram of a certain implementation manner of Example 9 of the application.
  • Example 9 of the application is a schematic structural diagram of a certain implementation manner of Example 9 of the application.
  • Example 9 is a schematic structural diagram of a certain implementation of Example 9 of the application.
  • Example 9 is a schematic structural diagram of a certain implementation manner of Example 9 of the application.
  • FIG. 21 is a schematic structural diagram of the lighting device in Embodiment 10 of the present application.
  • FIG. 23 is a schematic cross-sectional view of the light outlet of the lighting device shown in FIG. 28;
  • FIG. 24 is a schematic cross-sectional structural diagram of the A-A plane of FIG. 23;
  • FIG. 25 is a schematic structural diagram illustrating the area of the light-transmitting region of the lighting device in Embodiment 11 of the present application corresponding to FIG. 23;
  • 26 is a schematic structural diagram illustrating the area of the light-transmitting region of the second lighting device in Embodiment 11 of the present application.
  • FIG. 27 is a schematic structural diagram of a lighting device in Embodiment 12 of the present application.
  • Reference numerals in the figure 100, OLED light sheet; 110, display area; 120, non-display area; (111, 111a, 111b, 111c, 111d, 111e), main light-emitting unit; 112, the first peripheral light-emitting unit; 113, the first light-emitting unit II Peripheral light-emitting unit; 114, display main body area; 115, display peripheral area; 116, peripheral I area; 117, peripheral II area; 20, reflective structure; 30, light-emitting cavity; 21, reflective mirror surface; 22, opening; 21a, 21b, the second mirror surface; 21c, the third mirror surface; 31, the first end; 32, the second end; 100a, the first OLED light sheet; 100b, the second OLED light sheet; (2a, 2b, 2c, 2d, 2e), pixels.
  • the present embodiment provides an OLED light sheet 100.
  • the light sheet 100 has an irregular shape surrounded by three straight sides and a circular arc side; the light sheet 100 is provided with a display area 110 and non-display area 120, wherein the display area 110 includes:
  • At least one display main body area 114 has a regular shape and is formed by splicing a plurality of main light-emitting units 111 with the same shape;
  • the display peripheral area 115 is composed of the peripheral I area 116 and/or the peripheral II area 117.
  • the display peripheral area 115 includes both the peripheral I area 116 and the peripheral II area 117;
  • the I region 116 is formed by a plurality of first peripheral light-emitting cells 112 with regular shapes, and the peripheral II region 117 is formed by a plurality of the second peripheral light-emitting cells 113 .
  • the display peripheral area 115 may only include the peripheral I area 116 ; in some embodiments of the present application, the display peripheral area 115 may only include the peripheral II area 117 .
  • the peripheral II area 117 is the part of the display area 110 other than the display main area 114 and the peripheral I area 116 , that is, the closed figure portion enclosed by the outer edge of the peripheral II area 117 and the outermost edge outline of the display area .
  • the above-mentioned design of the display main area 114 and the display peripheral area 115 realizes a full-screen display on the special-shaped OLED light sheet, so that the space of the OLED light sheet is maximized, and it is ensured that when applied to automobile lights, even if the number and the The space is compressed, and the brightness of the car lights can also be guaranteed;
  • the number of display main areas is designed to be one, which is square; in other embodiments, multiple OLED light sheets can be designed according to the shape of the OLED light sheet.
  • the main body areas are displayed, and the shape and size of each display main body area can be the same or different.
  • the shape of the display main area may also be a triangle or a regular n-gon, where n ⁇ 5.
  • the display main body area 114 has a regular square shape, which is formed by several right-angled triangular main light-emitting units 111 with the same shape and area.
  • different main light-emitting units 111 can be lighted by , to achieve steering, rhythm, warning, welcome and other indication functions;
  • the rhythmic indication can be realized by lighting the main light-emitting unit 111 in the shadow of the display main body area 114, and the lighting of each light-emitting unit can be expressed by a time sequence function, or the lighting of the OLED can be controlled at different time intervals. extinguish;
  • the warning indication function can be realized by lighting the main light-emitting unit 111 that displays the shaded portion in the main body area 114 at a set frequency;
  • an indication of welcoming a guest can be realized, and the indication of welcoming a guest can be similar to a rhythm, for example.
  • the shape of the main light-emitting unit 111 is a right-angled triangle
  • the display main body area 114 includes at least a pair of the first main light-emitting unit T 1 and the second main light-emitting unit T 2 , and further includes at least one pair of the third main light-emitting unit T 3 and the fourth main light-emitting unit T 4 ;
  • the second main light-emitting unit T2 is obtained by mirroring the first main light-emitting unit T1 along its hypotenuse;
  • the third main light-emitting unit T3 is obtained by mirroring the first main light-emitting unit T1 along any straight edge thereof;
  • the fourth main light-emitting unit T4 is obtained by mirroring the third main light-emitting unit T3 along its hypotenuse.
  • the shape and arrangement of the above-mentioned main light-emitting units 111 are designed so that an arrow shape for steering requirements can be formed in the display main body area 110 .
  • the ratio of the area S of all the display main areas 114 to the total area S of the light sheet display area is greater than or equal to 80%. In this way, various element information can be displayed to the maximum extent through the display main body area 114, the display effect of the graphics can be enhanced, and the advantages of the OLED surface light source can be highlighted.
  • the first peripheral light-emitting unit 112 and the main light-emitting unit 111 have the same shape, and such a design can make the brightness of the entire OLED light sheet more uniform.
  • the design shape is preferably selected as a pair of the first main light-emitting unit T1 and the second main light-emitting unit T2. That is, the shape shown in FIG. 3; when the area area is not satisfied, it is designed into the shape of the first main light-emitting unit T1, that is, the shape shown in FIG.
  • the peripheral II area 117 is composed of several second peripheral light-emitting units 113, and the second peripheral light-emitting units 113 are designed in the peripheral II area 117, which may be regular or irregular; in some embodiments of the present application Among them, the area of the second peripheral light-emitting unit 113 is 80%-120% of the area of the first peripheral light-emitting unit 112; the design of each light-emitting unit area is equivalent, which can further improve the uniformity of screen brightness.
  • the area S a of the peripheral II region 117 and the area S b of the peripheral I region 116 satisfy the following formula:
  • the unit is cd/m 2
  • S is the area
  • the unit is m 2
  • ⁇ is the luminous efficiency
  • the unit is cd/A
  • A is the current I
  • the above area ratio is set at 80%-120%, which can ensure the better uniformity of the OLED light-emitting sheet.
  • the distance between adjacent light-emitting units in the display area 110 is D-ne ⁇ D- distinction ;
  • the adjacent light-emitting units include: between two adjacent main light-emitting units 111, Between two adjacent first peripheral light-emitting units 112, between adjacent two second peripheral light-emitting units 113, between adjacent main light-emitting units 111 and the first peripheral light-emitting unit 112, adjacent first Between the peripheral light-emitting unit 112 and the second peripheral light-emitting unit 113; where D is the distinguishable distance of the human eye, which satisfies the following formula:
  • L is the minimum distance between people and vehicles; ⁇ is the wavelength of the main light-emitting unit.
  • ⁇ refers to the wavelength of red light.
  • the wavelength of red light is relatively long, and the penetration rate of red light is relatively strong.
  • the invention is mainly applied to red OLED vehicle lights; of course, in other embodiments, for example, when the color of the OLED vehicle lamp is other colors, it can also be the wavelength of the light wave of other colors.
  • ⁇ is the wavelength of the main light-emitting unit with the longest wavelength
  • n is the refractive index of the pupil of the human eye
  • R is the set radius of the pupil of the human eye.
  • the side length of the main light-emitting unit 111 and/or the first peripheral light-emitting unit 112 is greater than or equal to 5* D .
  • the side length of the main light-emitting unit 111 and/or the first peripheral light-emitting unit 112 is greater than or equal to 5* D , that is, the light-emitting units corresponding to the right triangle in this embodiment (including the main light-emitting unit 111 and the first peripheral light-emitting unit 112).
  • the side length of the peripheral light-emitting unit 112) is greater than or equal to 2.8 mm, and the area of the corresponding light-emitting unit is greater than or equal to 3.92 mm 2 .
  • the side length of the main light-emitting unit 111 and/or the first peripheral light-emitting unit 112 is greater than or equal to 9* D , that is, the light-emitting units corresponding to the right triangle in this embodiment (including the main light-emitting unit 111 and the first peripheral light-emitting unit 112)
  • the side length of the peripheral light-emitting unit 112) is greater than or equal to 5 mm, and correspondingly, the area of the right-angled triangular light-emitting unit is greater than or equal to 12.5 mm 2 .
  • the OLED light sheet provided in this embodiment is in the shape of a snowflake, which has three types of 19 display main areas 114 and 16 display peripheral areas 115 ;
  • the display main area 114 includes respectively The first display main body area 114a located in the center, the second display main body area 114b located on the branches, and the third display main body area 114c located on the branches and leaves;
  • the first display main body area 114a located in the center includes a
  • the rectangular second display main body area 114b located on the branches includes 32 right-angled triangle main light-emitting units 111 with an area of 8 mm 2
  • the rectangular third display main body area located on the branches and leaves 114c includes a total of 4 right-angled triangular main light-emitting units 111 with an area of 8 mm 2 ;
  • the main light-emitting units in different display main body regions have the same shape.
  • the display peripheral area 115 includes one peripheral I area 116 and two peripheral II areas 117a, 117b; the display peripheral area 115 near the center includes both the peripheral I area 116 and the peripheral II area 117a, wherein the peripheral I area 116 includes 12 right triangles
  • the display peripheral area 115 attached to the branches only includes the peripheral II area 117b, and the peripheral II area 117b includes 12 second peripheral light-emitting units 113 with an area of 13.7 mm 2 .
  • a snowflake shape can be formed; when some main light-emitting units are selectively lighted in the central display body area alone, some basic vehicle lamp indication shapes can be achieved.
  • the OLED light sheet provided in this embodiment is in the shape of a leaf, which has one display main body area 114 and one display peripheral area 115 ; the display main body area 114 includes 64 light-emitting
  • the main light-emitting unit 111 with an area of 25 mm 2 shows that the peripheral area 115 includes a peripheral I area 116 and a peripheral II area 117; the peripheral I area 116 includes 25 regular first peripheral light-emitting units 112 (filled with oblique lines), and the peripheral II area includes Several irregular second peripheral light-emitting units 117 (box filling).
  • the shape of leaves can be formed; when some main light-emitting units are selected to be lit in the central display main area alone, some basic vehicle lamp indication shapes can be achieved.
  • the OLED light sheet provided in this embodiment is circular, and has one display main body area 114 and one display peripheral area 115 ;
  • the display main body area 114 includes 32 light-emitting The main light-emitting unit 111 with an area of 25 mm 2
  • the display peripheral area 115 includes 8 regular first peripheral light-emitting units 112 (filled with squares) and several irregular second peripheral light-emitting units 113 (filled with diagonal lines).
  • a circle can be formed; when some main light-emitting units are selected to be lit in the central display main area alone, some basic vehicle lamp indication shapes can be achieved.
  • this embodiment provides an OLED light sheet 100, the light sheet 100 is provided with a display area and a non-display area 120, wherein the display area includes:
  • Two hexagonal display main areas (114a, 114b), for ease of viewing, in FIG. 8, the display main area 114a and the display main area 114b are defined by dotted lines; the display main area 114a is mainly composed of 12 triangles with the same shape.
  • the unit 111a is formed; the display main area 114b is also formed by 12 triangular main light-emitting units 111b with the same shape; the main light-emitting units 111a in the display main area 114a are symmetrically arranged in the center of the hexagon; the main light-emitting units in the display main area 114b 111b is formed by dividing the diagonal connection of the hexagon.
  • the display peripheral area 115 is formed by the first peripheral light-emitting unit 112 in a triangular shape; that is, it can be understood that in this embodiment, the display peripheral area only includes the peripheral I area, and no peripheral II area.
  • the main light-emitting unit may be other n-sided shapes, such as triangles, quadrilaterals, pentagons, heptagons, etc.; or the shape of the main light-emitting unit may be any two on the edge of the n-gon.
  • the point-to-point line is cut and formed (the line can be a straight line or a bent line), n ⁇ 3.
  • the shape of the first peripheral light-emitting unit 112 is an n-gon, such as a rhombus, a pentagon, a rhombus, a triangle, and the like.
  • the shape of the second peripheral light-emitting unit is at least one of an n-sided shape or a figure formed by cutting an n-sided shape, or the shape of the second peripheral light-emitting unit is an n-sided shape.
  • a line connecting two points on the sideline is arbitrarily cut to form (the line can be a straight line or a bent line), n ⁇ 3.
  • the main light-emitting unit is formed by any one, two or more combinations of polygonal pixels or special-shaped pixels; the main light-emitting unit is composed of at least three adjacent The driving voltage of each pixel in the main light-emitting unit is completely different or partially different, so that the light-emitting unit forms a three-dimensional lighting pattern.
  • an OLED light sheet sequentially includes a substrate, an anode, an organic functional layer and a cathode, wherein the organic functional layer forms a complete display area.
  • the organic functional layer forms a complete display area.
  • the main light-emitting unit of an OLED light sheet provided in this embodiment is divided into three pixels; the three pixels are of the same color, and the anode is isolated by the insulating layer at this time, and power is supplied to each pixel independently.
  • the lighting of different pixels thus, through the formation of lighting patterns with different shapes of the lit pixels, the intelligence and pixelization of the OLED lighting screen is realized.
  • the main light-emitting unit of another OLED light sheet provided in this embodiment is divided into 3 pixels; the 3 pixels are of different colors, and the 3 pixels are separated from the corresponding anode and/or organic functional layer by an insulating layer.
  • the pixels are powered separately, and the lighting of different pixels is realized by supplying power to different pixels, so that the lit pixels form lighting patterns with different shapes and colors, which realizes the intelligence and pixelization of the OLED lighting screen.
  • the shapes of the pixels include various triangle shapes such as equilateral triangles, right triangles, irregular triangles, etc., and also include various quadrilateral shapes such as parallelograms and irregular quadrilaterals, and also include pentagons, hexagons, and heptagons. Shape, octagon and other polygonal shapes, and can also be any other shape designed according to requirements.
  • the cooperation of some different pixels can form main light-emitting units of different shapes; at the same time, one, two or more adjacent pixels of the same shape can form a light-emitting unit, and two or more different shapes and adjacent pixels can also be formed a light unit.
  • the shape of the pixels (2a, 2b, 2c) is a rhombus, and the number of pixels is 33 in total; a group of pixels (2a, 2b, 2c) forms a main The light-emitting unit 111; at the same time, in this embodiment, the display area is hexagonal, and the shape of the OLED light sheet 100 is also designed to be a corresponding hexagon; so that the shape of the OLED light sheet 100 is adapted to the shape of the display area, and at the same time The OLED light sheet 100 also conforms to the shape of the main light emitting unit 111 .
  • the appearance of the OLED light sheet 100 is improved; as shown in FIG.
  • three diamond-shaped pixels form a main light-emitting unit 111, and when the driving voltages of the three pixels (2a, 2b, 2c) in the main light-emitting unit 111 are all different, A cube-shaped lighting pattern can be formed.
  • the illumination pattern of the cube formed by the main light-emitting unit 111 is shown in the shaded part of FIG. 9 , by lighting up some diamond-shaped pixels, and the brightness of the pixel 2a on the top surface of the cube is lower than the brightness of the pixels (2b, 2c) on the side , so as to achieve the stereoscopic visual effect of the superposition of multiple cubes.
  • the pixel (2c) provided by this embodiment is a rhombus
  • the shape of the pixel (2d) is a pentagon
  • the shape of the OLED light sheet is an octagon.
  • An octagonal main light-emitting unit 111 when two adjacent pentagonal pixels and rhombic pixels adjacent to the two pentagonal pixels are used as a main light-emitting unit 111, different main light-emitting units are lit by lighting
  • the unit 111 can realize the three-dimensional polyhedron-shaped lighting pattern shown in the shaded part of FIG. 10 .
  • a driving voltage such as 4.3V
  • the two Each diamond-shaped pixel 2c has another driving voltage, such as 4V, so that the pixels in the main light-emitting unit 111 have two brightnesses, and the combination of these two brightnesses and the pixel shapes in the main light-emitting unit 111 forms a three-dimensional bubble shape Illumination pattern; similarly, in this embodiment, only some of the pixels can be lit to form other illuminable patterns.
  • the shape of the pixel provided by this embodiment is a right triangle, and the pixel arrangement of the right triangle forms a display area 110 with a rectangular shape and a rice-shaped middle; the shape of the OLED light sheet is corresponding to a rectangle, so that the OLED
  • the shape of the light sheet is adapted to the shape of the display area and is more beautiful; in this embodiment, the combination formed by the pixels covered by the shaded part in FIG.
  • some pixels in one main light-emitting unit 111 share one driving voltage, and three different driving voltages form different brightness of the three sides of the cube, thus achieving The effect of a three-dimensional lighting pattern.
  • the illumination brightness of the OLED light sheet can be appropriately reduced compared with the prior art screen for lighting, so as to improve the service life of the lighting screen.
  • the brightness of the screen is 800cd/ m 2 to 900cd/m 2 .
  • the main light-emitting unit 111 of the OLED light sheet by dividing the main light-emitting unit 111 of the OLED light sheet, three or more pixels are formed, and the pixels are designed as polygons. Pixels of the same or different shapes form different main light-emitting units 111. Power on different main light-emitting units 1114, so that the lighted main light-emitting units 111 form a three-dimensional lighting pattern; when the colors of different pixels in the same main light-emitting unit 111 are different or the colors of pixels in different main light-emitting units 111 are different, It can realize the lighting pattern of color matching and change, and realize the intelligence and pixelization of the OLED lighting screen.
  • the shape of the OLED light sheet may also be other polygonal or special-shaped geometric pixels; for example, the shape of the display area may be are other polygons or shaped geometry pixels.
  • the pixel adopts a polygonal shape, so that the pattern can be more continuous and beautiful when formed. Based on the design idea of the present invention, it is not ruled out that the pixel is designed in a special-shaped form, such as a scattered four-leaf clover shape, Circles and the like are all within the scope of protection of the present application.
  • the corners of the main light-emitting unit and/or the first peripheral light-emitting unit and/or the second peripheral light-emitting unit are rounded, and the area of the rounded corner removal area is the same as the rounded corners
  • the area ratio of the light-emitting units after is less than or equal to 0.25.
  • the OLED light sheet is in the shape of a racetrack as a whole, and its display area is provided with three rectangular display main areas (114c, 114d, 114e), and two peripheral I areas 116; display main areas (114c, 114d, 114e) ) includes a main light-emitting unit 111c and a main light-emitting unit 111d; wherein the main light-emitting unit 111c is a triangle with rounded top corners, and the main light-emitting unit 111d is also a triangle with a rounded bottom corner.
  • the peripheral I region 116 includes the first peripheral light-emitting unit 112, and its corners are not rounded. In some embodiments, the corners of the first peripheral light-emitting unit 112 may also be rounded.
  • peripheral I area is set in the display peripheral area.
  • the peripheral II area may be further provided, and the second peripheral light-emitting unit in the peripheral II area may also be Set the corner rounding.
  • the corners of the main light-emitting unit and/or the first peripheral light-emitting unit and/or the second peripheral light-emitting unit are rounded, and the area of the rounded corner removal area is the same as the rounded corners
  • the area ratio of the light-emitting units after is less than or equal to 0.25.
  • the area of the largest pixel in the second peripheral light-emitting unit and/or the area ratio of the largest pixel area in the first peripheral light-emitting unit to the largest pixel in the main light-emitting unit is in the range of 0.8-1.2.
  • a fractal pattern is formed between the display main body region 114 and the main light-emitting unit 111 .
  • Fractal is usually defined as "a rough or fragmented geometric shape that can be divided into several parts, each of which is at least approximately a reduced shape of the whole", that is, it has the property of self-similarity.
  • Koch curves, Sierpinski triangles, and Cantor sets are all fractal geometric figures.
  • the OLED light sheet 100 is square, its display area is also approximately square, and its display main area 114 is circular, which is composed of several circular main light-emitting units 111 of different sizes; A fractal pattern is formed between the main body area 114 and the circular main light-emitting unit 111; the display main body area 114 and the peripheral I area composed of four triangular first peripheral light-emitting units 112 together form a display area similar to a square outline.
  • the OLED light sheet 100 is an oblique triangle, and its display area is also similar to its outline as an oblique triangle, and its display main area 114 is an equilateral triangle, which is composed of a number of equilateral triangle main light-emitting units 111 of different sizes.
  • a fractal pattern is formed between the display main body area 114 of the equilateral triangle and the main light-emitting unit 111 of the equilateral triangle; the display main body area 114 and the peripheral I area formed by the first peripheral light-emitting unit 112 of several triangles together form a Its outline approximates the display area of the oblique triangular outline.
  • This embodiment provides a lighting device, the lighting device is composed of the OLED light sheet of Embodiment 4; a fractal pattern is formed between the shape of the lighting device and the OLED light sheet.
  • the lighting device is circular as a whole, which is formed by a fractal design of several circular OLED light sheets 100 of different sizes, and the design of each OLED light sheet adopts the solution described in Embodiment 4.
  • the lighting device as a whole can also be a triangle, which is formed by a fractal design of several circular OLED light sheets 100 of different sizes.
  • the lighting device as a whole can also be hexagonal, which is formed by a fractal design of several circular OLED light sheets 100 of different sizes.
  • the lighting device as a whole is in a spiral shape, which is formed by a fractal design of several irregular OLED light sheets 100 of different sizes, and the design of each OLED light sheet adopts a solution similar to that described in the above embodiment.
  • the lighting device as a whole is an irregular polygonal shape, which is formed by a fractal design of several diamond-shaped OLED light sheets 100 of different sizes, and the design of each OLED light sheet adopts a solution similar to that described in the above embodiment.
  • the lighting device is triangular as a whole, and is formed by a fractal design of several triangular OLED light sheets 100 of different sizes, and the design of each OLED light sheet adopts a solution similar to that described in the above embodiments.
  • the lighting device is an OLED vehicle lamp.
  • This embodiment provides a lighting device, including at least one OLED light sheet 100 described in the above-mentioned embodiments;
  • a light-reflecting structure 20 , a light-emitting cavity 30 is formed between the light-reflecting structure and the OLED light sheet; the light-reflecting structure 20 has at least two light-reflecting mirror surfaces 21 located in the light-emitting cavity 30 .
  • the number of OLED light sheets 100 is one, and the structure of the reflective structure 20 is similar to a quadrangular pyramid structure, which is made of PC material, and has an opening 22 on one side.
  • the opening 22 is installed. During the actual assembly process, the opening may be downward, that is, the OLED light sheet 100 is located below the reflective structure 20, or the opening may be upward, that is, the OLED light sheet 100 is located in the reflective structure.
  • the reflective structure 20 forms a U-shaped cross-section; the side close to the OLED light sheet 100 has a first reflective mirror surface 21a, a second reflective mirror surface 21b and a first reflective mirror surface 21b. Three mirror surfaces 21c.
  • the first reflecting mirror surface 21a, the second reflecting mirror surface 21b and the third reflecting mirror surface 21c are all arranged on an integrated reflecting structure 20.
  • the reflective mirror surfaces can be arranged on different reflective structures.
  • the reflective structure is composed of three independent reflective plates.
  • the first reflective mirror surface 21a, the second reflective mirror surface 21b and the third reflective mirror surface 21c are respectively located on the three independent reflective plates. .
  • the number of OLED light sheets 100 may also be 2 or 3, and the number of reflective structures 20 may also be 3 or more:
  • the display area 110 of the OLED light sheet 100 and each reflective mirror surface 21 form a light-emitting cavity 30 ; Multiple reflections increase the light intensity.
  • the reflectivity of the reflective mirror surface 21 is greater than or equal to 80%, preferably greater than or equal to 95%.
  • the formation method of the reflective mirror surface 21 can optionally adopt any one of the following methods:
  • the material of the reflective structure 20 can be, for example, PC, and the reflective mirror surface 21 can form a mirror effect by performing an electroplating process or PVD on the PC material;
  • the electroplating material can be, for example, nickel and/or nickel-chromium alloy; or nichrome based further containing other materials such as aluminum or silver.
  • the base material of the reflective structure 20 is not limited.
  • the reflective mirror surface 21 can be formed by attaching a metal film layer with high reflectivity on the base surface of the reflective structure 20; the material of the metal film can be selected from a silver-aluminum film.
  • a high refractive index can further ensure the light output intensity of the lighting device.
  • the light-emitting cavity 30 has a first end 31 and an opposite second end 32, and the aperture of the light-emitting cavity gradually increases from the first end to the second end, and a light outlet is formed at the second end.
  • the aperture setting of the above-mentioned light-emitting cavity 30 makes the light emitted by the light-emitting cavity 30 have a deep, three-dimensional, and technological sense; the above-mentioned setting of the light-emitting cavity 30 also enables the entire light-emitting cavity 30 to form an engine nozzle, a vector transmitter, a flamethrower, Speaker, magic box, sound, and other effects modeling, the modeling is rich and beautiful.
  • the display area 110 is a flat area. As shown in FIG. 24 , there is a first angle ⁇ between the reflective mirror surface 21 and the display area 110 .
  • An included angle ⁇ is an acute angle.
  • the range of the first included angle ⁇ is 10° to 75°. This range of the first included angle can not only satisfy the space requirement of the narrow strip of the lighting device, but also ensure the lighting effect.
  • the reflecting mirror surface 21 is a plane; in other embodiments, the reflecting mirror surface 21 can also be set as a curved surface, for example, each reflecting mirror surface 21 can be a wavy curved surface;
  • the effect of the convex lens; it can also be an inner concave surface, or a part of a plane and/or a part of a curved surface and/or a part of an outer convex surface and/or an inner concave surface; through the use of the above-mentioned part of the surface shape, the light reflectivity of each reflecting mirror surface 21 is further improved. , thereby further increasing the luminous intensity of the lighting device.
  • the reflecting mirror surface 21 is provided with a convex prism structure, and the convex prism structure can further increase the reflectivity of the reflecting mirror surface 21.
  • each convex prism reflects light. The effect is stronger than other parts, shining like diamonds, resulting in a diamond-like glow.
  • the reflective structure 20 and the OLED light sheet 100 may be integrally and fixedly connected, or may be separated, specifically:
  • the OLED light sheet 100 is fixedly connected to the edge of the reflective structure 20 correspondingly.
  • the non-light-emitting surface of the OLED light sheet 100 faces the back of the reflective structure 20, the OLED light sheet 100 is installed at the opening 22 of the light reflective structure 20, and the OLED light sheet 100 is in contact with the light reflective structure 20; in this way, the light reflective structure 20 can give the OLED light sheet 100 to support.
  • the edge of the reflective structure 20 in contact with the OLED light sheet is flanged, and the OLED light sheet 100 is fixedly connected to the flanging of the reflective structure by means of snaps, snaps, screws, gluing, heat riveting, and the like.
  • the light-emitting cavity 30 forms a closed space on the longitudinal section; the end of the light-emitting cavity 30 with a relatively smaller diameter may be completely closed or have a certain opening.
  • the OLED light sheet 100 is suspended on the reflective structure 20 .
  • the OLED light sheet 100 is fixed with the lamp housing of the lighting device or the decorative strip of the lighting device by means of a bracket: the OLED light sheet 100 is fixed on the bracket by means of snaps, snaps, screws, gluing, hot riveting, etc., and then the bracket is fixed. It is fixed on the trim strip or housing of the lighting device.
  • the light-emitting cavity 30 forms a semi-closed space with a slit in the longitudinal section; the end of the light-emitting cavity 30 with a relatively smaller diameter may be completely closed or have a certain opening.
  • the structure of the lighting device in this embodiment is matched with the structure of the OLED light sheet of the present application, especially when the OLED light sheet is provided with a plurality of independent light-emitting units, different lighting levels of different light-emitting units can be controlled to achieve different lighting levels.
  • Lighting device effects after these lighting device effects are reflected by the reflective mirror surface 21, multiple sets of lighting device effects are presented, which not only improves the light intensity, but also further realizes the three-dimensional effect of the lighting device.
  • the display area 110 is a plane area, and the display area 110 has a light-emitting direction perpendicular to its surface;
  • the light-projecting area ratio is greater than or equal to 70%; the light-projecting area ratio is the ratio of the light-projecting area area of the display area 110 on the reflective mirror surface along its light-emitting direction to its own area.
  • the light output rate is equal to the ratio of the light output from the light outlet to the original light output of the OLED light sheet.
  • the larger the ratio the higher the light intensity under the same conditions.
  • Equal to the limit of 70% a large proportion of the primary light source is projected on the facing mirror surface, which increases the light output of the light outlet, improves the light output rate of the lighting device, and further increases the light intensity of the lighting device.
  • the reflective mirror surface 21 includes a first reflective mirror surface 21a, a second reflective mirror surface 21b and a third reflective mirror surface 21c; wherein the first reflective mirror surface 21a and the The included angle of the second reflecting mirror surface 21b is less than or equal to 90°, and the included angle between the second reflecting mirror surface 21b and the third reflecting mirror surface 21c is less than or equal to 90°, so that the light on both sides of the display area 110 in the first direction can be projected on the second reflecting light
  • the mirror surface 21b, the total area of the display area of the OLED light sheet 100 is S
  • the light projection area on the second reflective mirror surface 21b is S5
  • the projection area ratio S5/S is greater than or equal to 70%.
  • the light area ratio is 100%.
  • the area of the display area 110 of the first OLED light sheet 100a is S 100a
  • the second OLED light sheet 100a The area of the display area of 100b is S 100b
  • the light projection area of the display area of the first OLED light sheet 100a on the second reflecting mirror surface 21b is S6, and the projection area of the display area of the second OLED light sheet 100b on the second reflecting mirror surface 21b is S6.
  • the light area is S7; the light projection area ratio S6/S 10a of the first OLED light sheet 100a is equal to 85%; the light projection area ratio S7/S 10b of the second OLED light sheet 10b is equal to 85%.
  • the first reflecting mirror surface 21a and the third reflecting mirror surface 21c for illustration.
  • the OLED light sheet 100 achieves a large proportion of light projection area ratio on one of the reflecting mirror surfaces, the primary light source reflection of the OLED light sheet 100 is realized with high efficiency. Combined with the reflectivity of the reflecting mirror surface above 80%, the lighting device can be further effectively increased. of light intensity.
  • this embodiment provides a vehicle lamp
  • the vehicle lamp is provided with two or more of the lighting devices described in Embodiment 10 or Embodiment 11; preferably, the number of the lighting devices is more than or equal to three
  • the setting rule is, for example, linear arrangement, curved arrangement or circular arrangement.

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Abstract

一种OLED灯片（100）及照明装置，灯片的显示区（110）包括：至少一个显示主体区（114），形状规则，且由若干形状相同的主发光单元（111）拼接形成；显示外围区（115），由外围I区（116）和/或外围II区（117）组成，外围I区（116）由若干形状规则的第I外围发光单元（112）形成。通过将OLED灯片（100）的显示区（110）设计为包括至少一个显示主体区（114）和显示外围区（115）的方式；其中，显示主体区（114）的形状规则，可以实现多种显示元素，从而可以实现多种模式，如转向、律动、警示、迎宾等等。其中显示外围区（115），可以实现OLED灯片（100）的整屏显示，不仅仅满足了汽车尾灯异形的造型需求，且OLED灯片（100）数量和位置受限的设计要求下，提高了亮度空间和面积的利用率，可满足高难度的照明装置设计要求。

Description

一种OLED灯片及照明装置
本申请要求于2021年4月7日向中国国家专利局提交的发明专利申请号为CN202110372084.1，发明名称为“一种OLED灯片及OLED车灯”的中国专利申请的优先权权益。其全部内容作为引用，合并于此。
技术领域
本公开一般涉及照明OLED技术领域，具体涉及一种OLED灯片及照明装置。
背景技术
OLED在车载领域逐渐被广为接受。随着汽车智能化、舒适化灯要求的提高，用于汽车车灯的照明装置，其设计的空间压缩，OLED片数逐渐减少，但却要求OLED显示的内容越来越多，同时，在车灯的配光标准中，均有最小配光要求；因此OLED车灯的条件和环境越来越严苛，而显示和配光要求并不降低，甚至在显示上有更多的设计要求；因此现有的OLED灯已经很难满足OLED车灯用照明装置的设计要求了。
发明内容
鉴于现有技术中的上述缺陷或不足，期望提供一种OLED灯片，所述灯片的显示区包括：
至少一个显示主体区，形状规则，且由若干个形状相同的主发光单元拼接形成；
显示外围区，由外围I区和/或外围II区组成，所述外围I区由若干形状规则的第I外围发光单元形成，所述外围II区由若干个第II外围发光单元形成
根据本申请实施例提供的技术方案，所述第I外围发光单元或第II外围发光单元与所述主发光单元的形状相同。
根据本申请实施例提供的技术方案，所述显示区的相邻发光单元之间的间距D 邻<D 辨；其中D 辨为人眼可分辨距离，其满足以下公式：
D 辨＝2*L*Sin[(Θ/2)*57.3]；
Θ＝1.22*λ/2*n*R；
其中L为最小人车距离；λ所述主发光单元的主发光波长；n表示人眼瞳孔的折射率；R为设定的人眼瞳孔的半径。
根据本申请实施例提供的技术方案，所述主发光单元和/或所述第I外围发光单元的边长大于等于5*D 辨。
根据本申请实施例提供的技术方案，主发光单元的形状为n边形或n边形分切形成的图形，n≥3；所述主发光单元由多边形像素或异形像素中的任意一种、两种或多种组合形成；所述主发光单元由至少3个相邻的像素组成，且所述主发光单元内各个像素的驱动电压完全不同或部分不同，使得所述发光单元形成立体的照明图案。
根据本申请实施例提供的技术方案，所述第I外围发光单元的形状为n边形；第II外围发光单元的形状为n边形或n边形分切形成的图形中的至少一种，n≥3。
根据本申请实施例提供的技术方案，所述主发光单元和/或第I外围发光单元和/或第II外围发光单元的边角倒圆角，且倒圆角去除区域的面积与倒圆角后的发光单元面积比小于等于0.25。
根据本申请实施例提供的技术方案，所述显示主体区与所述主发光单元之间形成分形图案。
根据本申请实施例提供的技术方案，所述第II外围发光单元中最大像素的面积和/或所述第I外围发光单元面积最大像素面积与所述主发光单元中最大像素的面积比范围为0.8‐1.2。
第二方面，本申请提供一种照明装置，所述照明装置包括；
至少一个上述的OLED灯片；
反光结构，所述反光结构与所述OLED灯片之间形成发光腔体；所述反光结构具有位于所述发光腔体内的至少2个反光镜面。
根据本申请实施例提供的技术方案，所述显示区为平面区域，所述显示区具有垂直于其表面的出光方向；所述显示区沿其出光方向在任意一个所述反光镜面的投光面积比大于等于70％；所述投光面积比为显示区沿其出光方向在反光镜面上的投光区域面积与其自身面积的占比。
本申请的上述技术方案，通过将OLED灯片的显示区设计为包括至少一个显示主体区和显示外围区的方式；其中，显示主体区的形状规则，由若干形状相同的主发光单元拼接形成，因此显示主体区可以实现多种显示元素，比如可以拼接出三角形、四边形、菱形、梯形、六边形等多种图形单元，从而可以实现多种模式，如转向、律动、警示、迎宾等等。其中显示外围区，由外围I区和外围II区组成，因此可以实现OLED灯片的整屏显示，不仅仅满足了汽车尾灯异形的造型需求，且OLED灯片数量和位置受限的设计要求下，提高了亮度空间和面积的利用率，可满足高难度的照明装置设计要求。
根据本申请实施例提供的技术方案，通过将显示区的发光单元之间的距离进行限定，使得显示区的发光单元之间的间距人眼感知不到，保证图形的完整性。同时，将发光单元的边长设为人眼可分辨距离的5倍以上，实现发光图形能更好的被人眼感知。
根据本申请实施例提供的技术方案，通过将OLED灯片与反光结构之间形成发光腔体，所述反光结构具有位于所述发光腔体内的至少2个反光镜面,每个反光镜面均可反射OLED灯片发射的光线及其他反光镜面的反射光，当OLED灯片形成有一个发光形状时，本申请的照明装置通过镜面反射，可以形成多个发光形状，从而形成多个照明装置造型效果，同时还提高了配光强度，提高了照明装置内部利用空间；因此与其他照明装置相比，在相同的配光强度下，本方案相应减少了光源的使用数量，从而有效减低整体的成本。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显：
图1a‐图1b为本申请实施例1的结构示意图；
图2为本申请实施例1中主发光单元的结构示意图；
图3为本申请实施例1中第I外围发光单元的一种结构示意图；
图4为本申请实施例1中第I外围发光单元的另一种结构示意图；
图5为本申请实施例2的结构示意图；
图6为本申请实施例3的结构示意图；
图7为本申请实施例4的结构示意图；
图8为本申请实施例5的结构示意图；
图9为本申请实施例6中OLED灯片的第一种结构示意图；
图10为本申请实施例6中OLED灯片的第二种结构示意图；
图11为本申请实施例6中OLED灯片的第三种结构示意图；
图12为本申请实施例7中OLED灯片的结构示意图；
图13为本申请实施例7中OLED灯片的倒圆角的结构示意图；
图14为本申请实施例8中OLED灯片的第一种结构示意图；
图15为本申请实施例8中OLED灯片的第二种结构示意图；
图16为本申请实施例9某一种实施方式的结构示意图；
图17为本申请实施例9某一种实施方式的结构示意图；
图18为本申请实施例9某一种实施方式的结构示意图；
图19为本申请实施例9某一种实施方式的结构示意图；
图20为本申请实施例9某一种实施方式的结构示意图；
图21为本申请实施例10中照明装置的结构示意图；
图22为本申请实施例10中反光结构的结构示意图；
图23为图28所示的照明装置的出光口的剖切结构示意图；
图24为图23的A‐A面剖视结构示意图；
图25为本申请实施例11对应图23的照明装置的透光区域面积说明的结构示意图；
图26为本申请实施例11第二种照明装置的透光区域面积说明的结构示意图；
图27为本申实施例12中照明装置的结构示意图；
图中标号：100、OLED灯片；110、显示区；120、非显示区；(111、111a、111b、111c、111d、111e)、主发光单元；112、第I外围发光单元；113、第II外围发光单元；114、显示主体区；115显示外围区；116、外围I区；117、外围II区；20、反光结构；30、发光腔体；21、反光镜面；22、开口；21a、第一反光镜面；21b、第二反光镜面；21c、第三反光镜面；31、第一端；32、第二端；100a、第一OLED灯片；100b、第二OLED灯片；(2a、2b、2c、2d、2e)、像素。
具体实施方式
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释相关发明，而非对该发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与发明相关的部分。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
实施例1
请参考图1a，本实施例提供一种OLED灯片100，该灯片100的形状为由三段直边和一段圆弧边围成的不规则的异形形状；所述灯片100设有显示区110和非显示区120，其中显示区110包括：
至少一个显示主体区114，形状规则，且由若干形状相同的主发光单元111拼接形成；
显示外围区115，由外围I区116和/或外围II区117组成，在图1a所示的示例中，显示外围区115即包括外围I区116，也包括外围II区117；其中所述外围I区116由若干形状规则的第I外围发光单元112形成，所述外围II区117由若干第II外围发光单元113形成。
在本申请的某些实施例中，显示外围区115也可以仅仅包括外围I区116；在本申请的某些实施例中，显示外围区115也可以仅仅包括外围II区117。
其中，外围II区117为显示区110内除了显示主体区114和外围 I区116外的部分，也即外围II区117的外缘线与显示区的最外边缘轮廓线围成的封闭图形部分。
上述显示主体区114和显示外围区115的设计在异形的OLED灯片上实现了整屏显示，使得OLED灯片的空间得到了最大化的使用，保证了在应用到汽车车灯时，即使数量和空间受到压缩，也可保证汽车车灯的亮度；
在本申请的某些实施例中，由于OLED灯片的形状相对连续完整，因此设计显示主体区的数量为一个，且为正方形；在其他实施例中，可根据OLED灯片的形状设计多个显示主体区，且每个显示主体区的形状和大小可以相同，也可以不同。
在本申请的某些实施例中，所述显示主体区的形状也可以是三角形、或正n边形,n≥5。
由于显示主体区114的规则化设计，可以通过选择性地点亮不同组合的主发光单元111，来满足不同的车灯指示需求。
如图1a和图1b所示，显示主体区114具有规则的方形，其由若干形状和面积相等的直角三角形主发光单元111形成，在点亮时，可以通过对不同的主发光单元111点亮，实现转向、律动、警示、迎宾等指示功能；
例如如图1a所示，通过点亮显示主体区114内的阴影内的主发光单元111可以实现右转的转向指示；
在其他实施方式中，通过点亮显示主体区114内的阴影内的主发光单元111可以实现律动的指示，将各个发光单元的点亮用时序函数表达，或者以不同的时间间隔控制OLED的亮灭；
例如如图1b所示，通过以设定频率点亮显示主体区114内的阴影部分的主发光单元111可以实现警示的指示功能；
在其他实施方式中，通过点亮显示主体区114内的阴影内的主发光单元111可以实现迎宾的指示，迎宾的指示例如也可以和律动类似。
如图2所示，在本实施例中，主发光单元111的形状为直角三角形，所述显示主体区114包括至少一对第一主发光单元T 1和第二主发光单元T 2，还包括至少一对第三主发光单元T 3和第四主发光单元T 4；
所述第二主发光单元T 2由所述第一主发光单元T 1沿其斜边镜像得到；
所述第三主发光单元T 3由所述第一主发光单元T 1沿其任一直边镜像得到；
所述第四主发光单元T 4由所述第三主发光单元T 3沿其斜边镜像得到。
上述主发光单元111的形状与排布设计，使得在显示主体区110可以形成转向需求的箭头形状。
在本申请的某些实施例中，所有显示主体区114的面积S 主与所述灯片显示区的总面积S 总的比值大于等于80％。如此可以通过显示主体区114最大限度的显示各种元素信息，增强图形的显示效果，彰显OLED面光源的优势。
其中本实施例中，优选的，所述第I外围发光单元112与所述主发光单元111的形状相同，如此设计可以使得整个OLED灯片的亮度更均匀。且在外围I区116进行第I外围发光单元112设计的时候，在区域面积满足的前提下，优先选择设计形状为一对第一主发光单元T 1加第二主发光单元T 2的形状，也即如图3所示的形状；在区域面积不满足时再设计成第一主发光单元T 1的形状，也即图4所示的形状，在其他实施例中也可以设计成第二主发光单元T2或第三主发光单元T3或第四主发光单元T4。这样使得整体造型更加统一美观。
外围II区117由若干第II外围发光单元113组成，第II外围发光单元113在外围II区117内进行设计，其可以是规则的，也可以是不规则的；在本申请的某些实施例中，第II外围发光单元113的面积为第I外围发光单元112面积的80％‐120％；各个发光单元面积相当的设计，可以进一步提高屏体亮度的均匀性。
在本申请的某些实施例中，所述外围II区117的面积S a与外围I区116的面积S b之间满足以下公式：
0.8≤S a/S b≤1.2。
在相同器件结构下，根据公式BS＝η*I，B是亮度，单位为cd/m 2，S代表面积，单位为m 2，η代表发光效率，单位为cd/A，A代表电流 I，在面积一定的条件下，亮度与电流成正比，因此为了保证发光的均匀性，将上述面积比设定在80％‐120％，可以保证OLED发光片较好的发光均匀性。
在本申请的某些实施例中，所述显示区110的相邻发光单元之间的间距D 邻<D 辨；相邻发光单元之间包括：相邻的两个主发光单元111之间、相邻的两个第I外围发光单元112之间、相邻的两个第II外围发光单元113之间、相邻的主发光单元111与第I外围发光单元112之间、相邻的第I外围发光单元112与第II外围发光单元113之间；其中D 辨为人眼可分辨距离，其满足以下公式：
D 辨＝2*L*Sin[(Θ/2)*57.3]；
Θ＝1.22*λ/2*n*R；
其中L为最小人车距离；λ为所述主发光单元的波长，在本实施例中，λ指的是红光的波长，红光的波长比较长，红光的穿透率比较强，本发明主要是应用于红光OLED车灯；当然，在其他实施例中，如OLED车灯的颜色为其他颜色时也可以是其他颜色光波的波长，当OLED车灯有多个不同颜色的主发光单元的时候，λ为波长最长的主发光单元的波长；n表示人眼瞳孔的折射率；R为设定的人眼瞳孔的半径。
例如，本实施例提供的OLED灯片用作红色的汽车尾灯，则λ＝624nm最小人车距离L一般依据习惯设定，本实施例中取L＝3m；n＝1.34；瞳孔直径取设定值3mm，可以得人眼的视觉最小分辨角度Θ为：
Θ＝1.22λ/2*n*R＝1.22*624*10 ‐9/(1.34*3*10 ‐3)＝0.0001893(rId)
D 辨＝2*L*Sin(Θ/2*57.3)＝0.56mm。
这样可以使得相邻发光单元的间距人眼感知不到，保证图形的完整性。
为了实现发光图形能更好的被人眼感知，保证发光图形的易辨识性，所述主发光单元111和/或所述第I外围发光单元112的边长大于等于5*D 辨。
例如假定所述主发光单元111和/或所述第I外围发光单元112的边长大于等于5*D 辨，即对应本实施例中的直角三角形的发光单元(包括主发光单元111和第I外围发光单元112)的边长≥2.8mm，相应的发 光单元的面积≥3.92mm 2。
例如假定所述主发光单元111和/或所述第I外围发光单元112的边长大于等于9*D 辨，即对应本实施例中的直角三角形的发光单元(包括主发光单元111和第I外围发光单元112)的边长≥5mm，相应的，直角三角形发光单元的面积≥12.5mm 2。
实施例2
如图5所示，在实施例1的基础上，本实施例提供的OLED灯片为雪花状，其具有3种19个显示主体区114和16个显示外围区115；显示主体区114包括分别为位于中心的第一显示主体区114a、位于枝干上的第二显示主体区114b、位于枝叶上的第三显示主体区114c；位于中心的第一显示主体区114a包括面积为17.7mm 2的直角三角形主发光单元111共计32个，位于枝杆上的长方形的第二显示主体区114b包含面积为8mm 2的直角三角形主发光单元111共32个，位于枝叶上的长方形的第三显示主体区114c包含面积为8mm 2的直角三角形主发光单元111共4个；不同显示主体区内的主发光单元形状相同。
显示外围区115包含一个外围I区116和两个外围II区117a、117b；靠近中心的显示外围区115即包括外围I区116又包括外围II区117a，其中外围I区116包括12个直角三角形第I外围发光单元112，其中外围II区117a包括16个发光面积为10mm 2的非直角三角形第II外围发光单元113。枝干附件的显示外围区115仅包含外围II区117b，且外围II区117b包含12个面积为13.7mm 2的第II外围发光单元113。
显示区内的所有发光单元均被点亮时，可以形成雪花形状；单独在中心的显示主体区内选择性点亮一些主发光单元时，可以实现一些基本车灯指示形状的要求。
实施例3
如图6所示，在实施例1的基础上，本实施例提供的OLED灯片为树叶状，其具有1个显示主体区114和1个显示外围区115；显示主体区114包含64个发光面积为25mm 2的主发光单元111，显示外围区115包括外围I区116和外围II区117；外围I区116包含25个规则的第I外围发光单元112(斜线填充)，外围II区包括若干若干个不规则的第II外围发 光单元117(方框填充)。显示区内的所有发光单元均被点亮时，可以形成树叶形状；单独在中心的显示主体区内选择得点亮一些主发光单元时，可以实现一些基本车灯指示形状的要求。
实施例4
如图7所示，在实施例1的基础上，本实施例提供的OLED灯片为圆形，其具有1个显示主体区114和1个显示外围区115；显示主体区114包含32个发光面积为25mm 2的主发光单元111，显示外围区115包含8个规则的第I外围发光单元112(方框填充)以及若干个不规则的第II外围发光单元113(斜线填充)。显示区内的所有发光单元均被点亮时，可以形成圆形；单独在中心的显示主体区内选择得点亮一些主发光单元时，可以实现一些基本车灯指示形状的要求。
实施例5
如图8所示，本实施例提供的一种OLED灯片100，该灯片100设有显示区和非显示区120，其中显示区包括：
两个六边形的显示主体区(114a,114b)，为了便于查看，图8中通过虚线圈定形成显示主体区114a，和显示主体区114b；其中显示主体区114a由12个形状相同三角形主发光单元111a形成；其中显示主体区114b也由12个形状相同三角形主发光单元111b形成；显示主体区114a内的主发光单元111a以六边形的中心对称设置；显示主体区114b内的主发光单元111b通过对六边形的对角连线分切形成。
其中，显示外围区115，由三角形的由第I外围发光单元112形成；也即可以理解为，本实施例中，显示外围区仅仅包括外围I区，不设外围II区。
在某些实施例中，主发光单元可以是其他n边形，例如三角形、四边形、五边形、七边形等等图形；或者主发光单元的形状为在n边形的边线上任意取两点连线分切形成(该连线可以为直线或者弯折线)，n≥3。
在本申请的某些实施例中，所述第I外围发光单元112的形状为n边形，例如菱形、五边形、菱形、三角形等。
在本申请的某些实施例中，第II外围发光单元的形状为n边形或 n边形分切形成的图形中的至少一种，或者第II外围发光单元的形状为在n边形的边线上任意取两点连线分切形成(该连线可以为直线或者弯折线)，n≥3。
实施例6
本实施例在上述任意一种实施例的基础上，所述主发光单元由多边形像素或异形像素中的任意一种、两种或多种组合形成；所述主发光单元由至少3个相邻的像素组成，且所述主发光单元内各个像素的驱动电压完全不同或部分不同，使得所述发光单元形成立体的照明图案。
在现有技术中，OLED灯片依次包括基板、阳极、有机功能层和阴极，其中有机功能层形成一个完整的显示区，工作时，只需要给阳极和阴极通电即实现了整个屏体的点亮。
本实施例提供的一种OLED灯片的主发光单元被分割形成了3个像素；3个像素同色，此时阳极被绝缘层隔绝，单独给各个像素供电，通过给不同的像素供电即实现了不同像素的点亮；从而通过点亮的像素的形成形状不同的照明图案，实现了OLED照明屏体的智能化和像素化。
本实施例提供的另一种OLED灯片的主发光单元被分割形成了3个像素；3个像素不同色，3个像素和对应的阳极和/或有机功能层之间通过绝缘层间隔，各个像素单独供电，通过给不同的像素供电即实现了不同像素的点亮，从而通过点亮的像素形成形状不同和颜色搭配不同的照明图案，实现了OLED照明屏体的智能化和像素化。
其中，所述像素的形状包括等边三角形、直角三角形、不规则三角形等各种三角形状，还包括平行四边形、不规则四边形等各种四边形形状，还包括五边形、六边形、七边形、八边形等多种其他多边形的形状，还可以是其他任意根据需求设计的形状。部分不同像素的配合可形成不同形状的主发光单元；同时1个、2个或者多个相同形状且相邻的像素可以形成一个发光单元，2个或者多个不同形状且相邻像素也可形成一个发光单元。
如图9所示：本实施方式提供的OLED灯片100中，像素(2a,2b,2c) 的形状为菱形，像素的数量总共33个；一组像素(2a,2b,2c)形成一个主发光单元111；同时本实施方式下，其显示区为六边形，OLED灯片100的形状也设计成了相应的六边形；使得OLED灯片100的外形与显示区的外形相适应，同时OLED灯片100与主发光单元111的外形也相适应。提高了OLED灯片100的美观；如图9所示，三个菱形像素形成一个主发光单元111，该主发光单元111内3个像素(2a,2b,2c)的驱动电压均不相同时，可形成一个立方体的照明图案。
主发光单元111形成的立方体的照明图案如图9的阴影部分所示，通过点亮部分菱形的像素，且立方体的顶面的像素2a亮度比侧边的像素(2b，2c)的亮度更低，从而达到了多个立方体叠加的立体视觉效果。
如图10所示，本实施方式提供的像素(2c)为菱形，像素(2d)的形状为五边形，OLED灯片的形状为八边形，所有五边形像素、菱形像素排列形成了一个八边形的主发光单元111；以两个相邻的五边形像素和分别与这两个五边形像素相邻的菱形像素为一个主发光单元111时，通过点亮不同的主发光单元111可以实现图10阴影部分所示的立体多面体形状的照明图案，该主发光单元111内通过给两个五边形像素2d一个驱动电压，例如4.3V，给该主发光单元111内的两个菱形像素2c另一个驱动电压，例如4V，从而使得该主发光单元111内的像素具有两种亮度，这两种亮度和主发光单元111内的像素形状的配合即形成了立体的泡泡状照明图案；同理，本实施方式中，也可只点亮其中部分像素，以形成其他可照明图案。
如图11所示，本实施方式提供的像素的形状为直角三角形，直角三角形的像素排列形成了外形为长方形，中部呈米字状的显示区110；OLED灯片的形状相应的长方形，使得OLED灯片外形与显示区外形相适应，更加美观；本实施方式中，可以定义图11中阴影部分覆盖的像素形成的组合为一个主发光单元111，通过点亮该主发光单元111可以形成图11阴影部分像素所示的立体状的照明图案，该实施方式中，一个主发光单元111内部分像素共用一个驱动电压，三种不同的驱动电压形成了立方体的三个面的不同亮度，从而达到了立体化的照明图 案的效果。
在某些实施例中，OLED灯片的照明亮度相对于现有技术的用于照明的屏体，亮度可以适当降低，以提高照明屏体的使用寿命，例如所述屏体的亮度为800cd/m 2至900cd/m 2。
本实施例，通过将OLED灯片的主发光单元111进行了分割，形成了大于等于三个数量的像素，将像素设计为多边形，相同或不同形状的像素形成不同的主发光单元111，通过分别给不同的主发光单元1114通电，使得点亮的主发光单元111形成立体的照明图案；当同一主发光单元111内不同像素的颜色不同时或者不同主发光单元111内的像素颜色不同时，还可实现色彩搭配变化的照明图案，实现了OLED照明屏体的智能化和像素化。
上述只是示例性地说明本申请的实施例可实施的方式，并不限于上述实施方式，例如所述OLED灯片的外形也可以是其他多边形或异形几何像素；例如，所述显示区的外形可以是其他多边形或异形几何像素。在本实施例中，像素采用多边形的形状，使得图案在形成的时候可以更加连续和美观，基于本发明的设计思路，不排除像素采用异形的形式设计，例如设计为分散的四叶草形状、圆形等等均为在本申请的保护范围之内。
实施例7
在本申请的某些实施例中，所述主发光单元和/或第I外围发光单元和/或第II外围发光单元的边角倒圆角，且倒圆角去除区域的面积与倒圆角后的发光单元面积比小于等于0.25。
如图12所示，OLED灯片整体呈跑道形状，其显示区设有三个长方形的显示主体区(114c，114d，114e)，和两个外围I区116；显示主体区(114c，114d，114e)包括主发光单元111c和主发光单元111d；其中主发光单元111c为三角形，其顶角倒圆角，主发光单元111d也为三角形，其一个底角倒圆角。外围I区116包括第I外围发光单元112，其边角没有导圆角，在某些实施例中，第I外围发光单元112的边角也可以设置倒圆角。
图12所示的OLED屏体中，显示外围区仅仅设置有外围I区，在本申请的某些实施例中，也可以进一步设置外围II区，外围II区中的 第II外围发光单元也可以边角设置导圆角。
在本申请的某些实施例中，所述主发光单元和/或第I外围发光单元和/或第II外围发光单元的边角倒圆角，且倒圆角去除区域的面积与倒圆角后的发光单元面积比小于等于0.25。
如图13所示，以某个三角形的主发光单元111为例，其顶角被导圆角，其中倒圆角去除区域的面积为S3，倒圆角后的发光单元面积为S4,S3/S4小于等于0.25。在图13中，S3/S4＝0.1。
在本申请的某些实施例中，所述第II外围发光单元中最大像素的面积和/或所述第I外围发光单元面积最大像素面积与所述主发光单元中最大像素的面积比范围为0.8‐1.2。
如图12所示，所述第I外围发光单元112由一个像素组成，该像素的面积S2为第I外围发光单元112的最大像素面积；所述主发光单元111c由一个像素组成，该像素的面积为S1，该像素为主发光单元中面积最大的像素；S2/S1＝1.1。
实施例8
在实施例1的基础上，所述显示主体区114与所述主发光单元111之间形成分形图案。
分形通常被定义为“一个粗糙或零碎的几何形状，可以分成数个部分，且每一部分都至少近似地是整体缩小后的形状”，即具有自相似的性质。在数学领域，科赫曲线、谢尔宾斯基三角形以及康托尔集均为分形几何图形。
例如如图14所示，OLED灯片100为正方形，其显示区也近似为正方形，其显示主体区114为圆形，其由若干大小不一的圆形主发光单元111组成；圆形的显示主体区114和圆形主发光单元111之间即形成了分形图案；显示主体区114和由四个三角形的第I外围发光单元112组成的外围I区共同形成一个类似于正方形轮廓的显示区。
例如如图15所示，OLED灯片100为斜三角形，其显示区也和其轮廓近似为斜三角形，其显示主体区114为正三角形，其由若干大小不一的正三角形主发光单元111组成；正三角形的显示主体区114和正三角形的正三角形主发光单元111之间即形成了分形图案；显示主体区114 和由若干个三角形的第I外围发光单元112组成的外围I区共同形成一个和其轮廓近似为斜三角形轮廓的显示区。
实施例9
本实施例提供一种照明装置，所述照明装置由实施例4的OLED灯片组成；所述照明装置的形状与所述OLED灯片之间形成分形图案。
如图16所示，照明装置整体是圆形，其由若干大小不一的圆形OLED灯片100分形设计形成，每个OLED灯片的设计采用实施例4所述的方案。
照明装置整体也可以是三角形，其由若干大小不一的圆形OLED灯片100分形设计形成。
照明装置整体还可以是六角形，其由若干大小不一的圆形OLED灯片100分形设计形成。
如图17所示，照明装置整体是螺旋状，其由若干大小不一的不规则OLED灯片100分形设计形成，每个OLED灯片的设计采用类似上述实施例所述的方案。
如图18所示，照明装置整体是不规则多边状，其由若干大小不一的菱形OLED灯片100分形设计形成，每个OLED灯片的设计采用类似上述实施例所述的方案。
如图19‐图20所示，照明装置整体是三角状，其由若干大小不一的三角形OLED灯片100分形设计形成，每个OLED灯片的设计采用类似上述实施例所述的方案。
在本申请的某些实施例中，照明装置为OLED车灯。
实施例10
本实施例提供一种照明装置，包括至少一个上述实施例所述的OLED灯片100；
反光结构20，所述反光结构与所述OLED灯片之间形成发光腔体30；所述反光结构20具有位于所述发光腔体30内的至少2个反光镜面21。
在本实施例中，如图21所示OLED灯片100的数量为1个，反光结构20结构类似四棱锥结构，其由PC材质制成，其一面设有开口22， OLED灯片100对应该开口22安装，在实际装配的过程中，该开口可以是朝下的，也即OLED灯片100位于反光结构20的下方，也可以是开口朝上的，也即OLED灯片100位于反光结构的上方；如图22和图23所示，反光结构20形成剖切面为类似U形的结构；其与OLED灯片100靠近的一侧具有第一反光镜面21a，还具有第二反光镜面21b和第三反光镜面21c。因此本领域的技术人员可以理解，本申请实施例中，将第一反光镜面21a、第二反光镜面21b和第三反光镜面21c均设置在一个一体的反光结构20上，在其他实施例中，可以将反光镜面设置在不同的反光结构上，例如反光结构由3块独立的反光板组成，第一反光镜面21a、第二反光镜面21b和第三反光镜面21c分别位于三个独立的反光板上。
在其他实施例中，OLED灯片100的数量也可以是2个或3个，反光结构20的数量也可以是3个或者更多：
以上仅仅是照明装置的某些实施例的结构示意图，本领域的技术人员可以理解，只要OLED灯片100的数量大于等于1个，反光结构20的反光镜面21的数量大于等于2个均在本申请的保护范围内。
本实施例中，通过设置至少2个反光镜面21和至少一个OLED灯片100，使得OLED灯片100的显示区110与各个反光镜面21形成发光腔体30；通过对OLED灯片100的光线进行多次反射，增加了出光强度。
在本实施例中，所述反光镜面21的反光率大于等于80％，优选为大于等于95％。其中反光镜面21的形成方式可选地采用以下任意一种方式：
方式一：反光结构20的材质例如可以是PC，反光镜面21可以通过在PC材质进行电镀工艺或者PVD形成镜像效果；电镀材料例如可以是镍和/或镍铬合金；或者电镀材料在镍和/或镍铬合金的基础上进一步包含其他材质如铝或银。
方式二：反光结构20的基体材料不受限制，反光镜面21可以通过在反光结构20的基体表面贴附一层高反射率的金属膜层形成；金属膜的材质可以选择银铝薄膜。
不管上述何种方式，高的折射率可以进一步保证照明装置的出光强度。
在本实施例中，如图31所示，所述发光腔体30具有第一端31和相对的第二端32，所述发光腔体的口径从第一端至第二端逐渐变大，并在第二端形成出光口。
上述发光腔体30的口径设置使得发光腔体30的出光具有深邃、立体、和科技感；上述发光腔体30的设置也使得整个发光腔体30可形成发动机喷口、矢量发送机、喷火、喇叭、魔盒、音响、等效果造型，造型丰富美观。
基于上述发光腔体30的口径逐步变大的设计，所述显示区110为平面区域，如图24所示，所述反光镜面21与显示区110之间具有第一夹角α，所述第一夹角α为锐角。优选地，所述第一夹角α的范围为10°至75°。第一夹角的该范围使得不仅可以满足照明装置的狭长条形的空间要求，又可以保证发光效果。
其中在本实施例中，所述反光镜面21为平面；在其他实施例中，反光镜面21也可以设置为曲面，例如，各个反光镜面21可以为波浪状的曲面；也可以为外凸面，形成凸透镜的效果；还可以是内凹面，或者部分平面和/或部门曲面和/或部分外凸面和/或内凹面；通过上述部分的表面形状的配合使用，进一步提高各个反光镜面21的光反射率，从而进一步增加照明装置的发光强度。
在本申请的某些实施例中，所述反光镜面21上设有凸起棱台结构，凸起棱台结构可以进一步增加反光镜面21的反射率，发光腔体内，每个凸起棱台反光效果比其他部位更强，像一颗颗钻石一样闪耀凸显，从而形成类似钻石一样的发光效果。
其中，在本实施例中，反光结构20与OLED灯片100之间可以一体固定连接，也可以分开，具体地：
例如，所述OLED灯片100与所述反光结构20边缘对应固定连接。例如，OLED灯片100的非发光面背向反光结构20，OLED灯片100安装在反光结构20的开口22处，OLED灯片100和反光结构20接触；这样，反光结构20可以给予OLED灯片100以支撑。反光结构20与 OLED灯片接触的边缘进行翻边，OLED灯片100通过卡扣、卡接、螺丝、胶粘、热铆等方式与反光结构的翻边进行固定连接。此时，发光腔体30在纵截面上形成一个封闭的空间；在发光腔体30的口径相对更小的一端，可以是完全闭合的，也可以是有一定开口的。
例如，OLED灯片100悬空在反光结构20上。其中，OLED灯片100与照明装置灯壳或照明装置饰条采用支架方式进行固定：OLED灯片100通过卡扣、卡接、螺丝、胶粘、热铆等方式固定在支架上，再将支架固定在照明装置饰条或者壳体上。此时，发光腔体30在纵截面上形成一个具有缝隙的半封闭的空间；在发光腔体30的口径相对更小的一端，可以是完全闭合的，也可以是有一定开口的。
本实施例中的照明装置结构与本申请的OLED灯片的结构配合时，尤其是OLED灯片设置多个独立的发光单元时，使得可以通过控制不同的发光单元的点亮程度来实现不同的照明装置效果，这些照明装置效果在经过反射镜面21的反射后，呈现多组照明装置效果，不仅提高了光强，也进一步实现了照明装置的立体感。
实施例11
本实施例在实施例10的基础上，所述显示区110为平面区域，所述显示区110具有垂直于其表面的出光方向；所述显示区110沿其出光方向在任意一个所述反光镜面的投光面积比大于等于70％；所述投光面积比为显示区110沿其出光方向在反光镜面上的投光区域面积与其自身面积的占比。
对于照明装置来说，出光率等于其从出光口输出的出光量与OLED灯片的原始出光量的比，该比值越大，相同条件下的光强更高，本申请对于投光面积比大于等于70％的限定，使得大比例的初次光源投射在正对的反光镜面，增加了出光口的出光量，提高了照明装置的出光率，进而增加了照明装置的光强。
具体地，如图25所示，例如对应图23中的反光结构20的情况，反光镜面21包括第一反光镜面21a、第二反光镜面21b和第三反光镜面21c；其中第一反光镜面21a与第二反光镜面21b的夹角≤90°，第二反光镜面21b与第三反光镜面21c的夹角≤90°，使得显示区110 在第一方向的两侧的光均可投射在第二反光镜面21b,OLED灯片100的显示区的总面积为S，其在第二反光镜面21b上的投光面积为S5,投光面积比S5/S大于等于70％，在本实施例中，投光面积比为100％。在图中，为了便于观看，我们将第三反光镜面21c所在的反光结构20的部分去除。
如图26所示，OLED灯片有2个，分别为第一OLED灯片100a和第二OLED灯片100b；第一OLED灯片100a的显示区110的面积为S 100a，第二OLED灯片100b的显示区的面积为S 100b；第一OLED灯片100a的显示区在第二反光镜面21b上的投光面积为S6，第二OLED灯片100b的显示区第二反光镜面21b上的投光面积为S7；第一OLED灯片100a的投光面积比S6/S 10a等于85％；第二OLED灯片10b的投光面积比S7/S 10b等于85％。为了便于说明，图26中我们缺省第一反光镜面21a和第三反光镜面21c进行示意。
当OLED灯片100在其中一个反光镜面实现大比例的投光面积比时，实现了OLED灯片100的初次光源大效率反射，结合反光镜面的反射率80％以上，可以进一步有效地增加照明装置的光强。
实施例12
如图27所示，本实施例提供的一种车灯，该车灯设有大于等于2个实施例10或实施11中所述的照明装置；优选地，所述照明装置的数量大于等于3个时，沿设定规则排布形成整灯造型。设定规则例如为直线排布，曲线排布或者圆周排布等。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (11)

  1. 一种OLED灯片，其特征在于，所述灯片的显示区包括：
    至少一个显示主体区，形状规则，且由若干个形状相同的主发光单元拼接形成；
    显示外围区，由外围I区和/或外围II区组成，所述外围I区由若干形状规则的第I外围发光单元形成，所述外围II区由若干个第II外围发光单元形成。
  2. 根据权利要求1所述的OLED灯片，其特征在于，所述第I外围发光单元或第II外围发光单元与所述主发光单元的形状相同。
  3. 根据权利要求1所述的OLED灯片，其特征在于，所述显示区的相邻发光单元之间的间距D 邻<D 辨；其中D 辨为人眼可分辨距离，其满足以下公式：
    D 辨＝2*L*Sin[(Θ/2)*57.3]；
    Θ＝1.22*λ/2*n*R；
    其中L为最小人车距离；λ所述主发光单元的主发光波长；n表示人眼瞳孔的折射率；R为设定的人眼瞳孔的半径。
  4. 根据权利要求3所述的OLED灯片，其特征在于，所述主发光单元和/或所述第I外围发光单元的边长大于等于5*D 辨。
  5. 根据权利要求1所述的OLED灯片，其特征在于，所述主发光单元的形状为n边形或n边形分切形成的图形，n≥3；所述主发光单元由多边形像素或异形像素中的任意一种、两种或多种组合形成；所述主发光单元由至少3个相邻的像素组成，且所述主发光单元内各个像素的驱动电压完全不同或部分不同，使得所述发光单元形成立体的照明图案。
  6. 根据权利要求1所述的OLED灯片，其特征在于，所述第I外围发光单元的形状为n边形；第II外围发光单元的形状为n边形或n边形分切形成的图形中的至少一种，n≥3。
  7. 根据权利要求5或6所述的OLED灯片，其特征在于，所述主发光单元和/或第I外围发光单元和/或第II外围发光单元的边角倒圆 角，且倒圆角去除区域的面积与倒圆角后的发光单元面积比小于等于0.25。
  8. 根据权利要求1所述的OLED灯片，其特征在于，所述显示主体区与所述主发光单元之间形成分形图案。
  9. 根据权利要求1所述的OLED灯片，其特征在于，所述第II外围发光单元中最大像素的面积和/或所述第I外围发光单元面积最大像素面积与所述主发光单元中最大像素的面积比范围为0.8‐1.2。
  10. 一种照明装置，其特征在于，所述照明装置包括；
    至少一个权利要求1‐9任意一项所述的OLED灯片；
    反光结构，所述反光结构与所述OLED灯片之间形成发光腔体；所述反光结构具有位于所述发光腔体内的至少2个反光镜面。
  11. 根据权利要求10所述的照明装置，其特征在于，所述显示区为平面区域，所述显示区具有垂直于其表面的出光方向；所述显示区沿其出光方向在任意一个所述反光镜面的投光面积比大于等于70％；所述投光面积比为显示区沿其出光方向在反光镜面上的投光区域面积与其自身面积的占比。
PCT/CN2022/085345 2021-04-07 2022-04-06 一种oled灯片及照明装置 WO2022213990A1 (zh)

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