JP2015019068A - Light emitting member and lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light emitting member employable in lighting devices to improve the resolution of lighting devices.SOLUTION: A light emitting member 10 includes a supporting base 11 and an LED die set 12. The supporting base 11 includes a supporting surface 111, and the LED die set 12 includes at least four LED dies 121, 122, 123, 124 disposed on the supporting surface 111 in a predetermined arrangement. In another aspect, a lighting device includes a plurality of light emitting members 10 arranged in a matrix. Therefore, each LED die of each light emitting member 10 defines one pixel, and can jointly define another pixel with one or more neighboring LED dies of one or more neighboring light emitting members 10. Pixel pitch between pixels can thus be reduced.

Description

<Cross-reference to related patent applications>
This disclosure claims the benefit of priority of Taiwan Patent Application No. 102124881, filed July 11, 2013, which is incorporated by reference in its entirety.

  The present disclosure relates to light emitting members and lighting devices, and more particularly to light emitting members and lighting devices that include one or more light emitting diode (LED) dies.

  Currently, light emitting members increasingly use LED dies as light sources. For example, referring to FIG. 1A, three different color LED dies 91 are used in the light emitting member 9 to cause the light emitting member 9 to emit light of three different colors.

  As shown in FIG. 1B, a plurality of light emitting members 9 can be arranged to form one lighting device (for example, an electronic sign, a display, etc.). An important feature among these lighting devices is resolution. The better the resolution of the lighting device, the finer the picture or image that the lighting device displays, providing a better visual experience for the viewer.

  In order to provide better resolution to the lighting device, it is necessary to reduce the pixel pitch between pixels to include a larger number of pixels within a unit of a certain length. However, the pixel pitch of the prior art lighting device can only be larger or equal to the dimension (length or width) of the light emitting member 9 and cannot be smaller than the dimension of the light emitting member 9. This is because a single pixel P is formed by one light emitting member 9.

  For this reason, in this industry, it is necessary to provide the light emitting member and the illuminating device which correct the defect mentioned above.

  The present disclosure provides a light emitting member that can be used in a lighting device to improve the resolution of the lighting device.

  The present disclosure further provides an illumination device with improved resolution.

In one aspect, the one or more light emitting members may include a first light emitting member that may include a first support base and a set of LED dies. The first support base may include a first support surface that includes two distal ends in a first direction and two distal ends in a second direction perpendicular to the first direction. . The four distal ends may define a first quadrilateral region. The set of LED dies may be disposed on the first support surface, the first LED die, the second LED die, the third LED die, and the fourth LED arranged in an array. Of dies. The distance between the first LED die and the second LED die in the first direction may have a _first value X1. A die of the first LED, the minimum distance between the end of the first quadrilateral area may have a second value Y _11. A die of the second LED, the minimum distance between the end of the first quadrilateral area may have a third value Y _12. The first value _{X 1} may be greater than the sum of the second value _{Y 11} and the third value _{Y 12.}

In at least some embodiments, the one or more light emitting members may further include a second light emitting member that may include a second support base having a second support surface. The second support surface may include two distal ends in the first direction and two distal ends in the second direction. The four distal ends of the second support surface may define a second quadrilateral region. An end of the first quadrilateral region of the first support surface of the first light emitting member in the first direction, and an end of the second quadrilateral region of the second support surface of the second light emitting member; minimum distance between may have a fourth value Z _1. Second value _{Y 11,} the third value _{Y 12,} and the sum of the fourth value _{Z 1} is not less than a first 0.9 times the value _{X 1,} the first value _{X 1} 1. It is not necessary to exceed 1 time.

In at least some embodiments, the sum of the second value Y ₁₁ , the third value Y ₁₂ , and the fourth value Z ₁ may be equal to the first value X ₁ .

At least in some embodiments, the second direction distance between the first LED die and the third LED die may have a fifth value X _2. The minimum distance between the end of the die and the first quadrilateral area of the first LED may have a sixth value Y _21. The minimum distance between the third LED die and the end of the first quadrilateral area may have a seventh value Y _22. The value _{X 2} of the fifth, sixth value _{Y 21,} and may be greater than the sum of the seventh value _{Y 22.}

In at least some embodiments, the end of the first quadrilateral region of the first support surface of the first light emitting member in the second direction and the second of the second support surface of the second light emitting member. the minimum distance between the end of the quadrilateral area of may have a value Z ₂ of the eighth. Sixth value _{Y 21,} the seventh value _{Y 22,} and the sum of the value _{Z 2} of the eighth, not fifth less than 0.9 times the value _{X 2} of the fifth value _{X 2} 1. It is not necessary to exceed 1 time.

In at least some embodiments, the sum of the sixth value Y ₂₁ , the seventh value Y ₂₂ , and the eighth value Z ₂ may be equal to the fifth value X ₂ .

  In at least some embodiments, the shape of the first support surface may be a quadrilateral. The end of the first quadrilateral region may include the end of the first support surface.

  In at least some embodiments, the shape of the first support surface may be square.

  In at least some embodiments, the first LED die, the second LED die, the third LED die, and the fourth LED die may be arranged in a square matrix.

  In at least some embodiments, the first LED die, the second LED die, the third LED die, and the fourth LED die are one or two red LED dies, one Or two green LED dies, one or two blue LED dies, or a combination thereof.

In at least some embodiments, the first value X1 may not be greater than ₁ mm.

In at least some embodiments, the value X ₂ of the 5 may be greater than 1 mm.

In another aspect, the lighting device may include a plurality of light emitting members. Each of the light emitting members may each include a support base and a set of LED dies. The support base may include a support surface that includes two distal ends in a first direction and two distal ends in a second direction perpendicular to the first direction. The four distal ends may define a quadrilateral region. The set of LED dies may be arranged on a support surface, and includes a first LED die, a second LED die, a third LED die, and a fourth LED die arranged in an array. It may contain at least. The distance between the first LED die and the second LED die in the first direction may have a _first value X1. A die of the first LED, the minimum distance between the end of the first quadrilateral area may have a second value Y _11. A die of the second LED, the minimum distance between the end of the first quadrilateral area may have a third value Y _12. The first value _{X 1} may be greater than the sum of the second value _{Y 11} and the third value _{Y 12.} The light emitting members may be arranged in an array. Of the light emitting members, the end of the quadrilateral region of the support surface of the support base of the first light emitting member and the second of the light emitting members provided adjacent to the first light emitting member in the first direction. the minimum distance between the end portion of the quadrilateral region of the support base of the support surface of the light-emitting member may have a fourth value Z _1. Second value _{Y 11,} the third value _{Y 12,} and the sum of the fourth value _{Z 1} is not less than a first 0.9 times the value _{X 1,} the first value _{X 1} 1. It is not necessary to exceed 1 time.

At least in some embodiments, the minimum distance between the first LED die and the die of the third LED may have a fifth value X _2. The minimum distance between the end of the die and the first quadrilateral area of the first LED may have a sixth value Y _21. The minimum distance between the third LED die and the end of the first quadrilateral area may have a seventh value Y _22. The value _{X 2} of the fifth, sixth value _{Y 21,} and may be greater than the sum of the seventh value _{Y 22.} The minimum distance between the end of the quadrilateral region of the support surface of the support base of the first light emitting member and the end of the quadrilateral region of the support surface of the support base of the second light emitting member in the second direction it may have a value _{Z 2} of the eighth. Sixth value _{Y 21,} the seventh value _{Y 22,} and the sum of the value _{Z 2} of the eighth, not fifth less than 0.9 times the value _{X 2} of the fifth value _{X 2} 1. It is not necessary to exceed 1 time.

In yet another aspect, the one or more light emitting members may include a first light emitting member that may include a first support base and a set of LED dies. The first support base may include a first support surface that includes two distal ends in a first direction and two distal ends in a second direction perpendicular to the first direction. . The four distal ends may define a first quadrilateral region. The set of LED dies may be disposed on the first support surface and may include at least six LED dies disposed in an array. The distance between two adjacent LED dies in the set of LED dies in the first direction may have a _first value X1. And die of the LED of a set of dies of the first side of the LED, the minimum distance between the end of the first quadrilateral area may have a second value Y _11. And LED die set of the second side of the LED die opposite the first side, the minimum distance between the end of the first quadrilateral area may have a third value Y _12. The first value _{X 1} may be greater than the sum of the second value _{Y 11} and the third value _{Y 12.}

In at least some embodiments, the one or more light emitting members may further include a second light emitting member that may include a second support base. The second support base may have a second support surface that includes two distal ends in a first direction and two distal ends in a second direction. The four distal ends of the second support surface may define a second quadrilateral region. An end of the first quadrilateral region of the first support surface of the first light emitting member in the first direction, and an end of the second quadrilateral region of the second support surface of the second light emitting member; minimum distance between may have a fourth value Z _1. Second value _{Y 11,} the third value _{Y 12,} and the sum of the fourth value _{Z 1} is not less than a first 0.9 times the value _{X 1,} the first value _{X 1} 1. It is not necessary to exceed 1 time.

In at least some embodiments, the sum of the second value Y ₁₁ , the third value Y ₁₂ , and the fourth value Z ₁ may be equal to the first value X ₁ .

At least in some embodiments, the distance between two other adjacent dies between the LED sets of LED dies in the second direction, it may have a fifth value X _2. The minimum distance between the LED die of the first side LED die set and the end of the first quadrilateral region may have a sixth value Y ₂₁ . And die of the LED of a set of dies of the two sides of the LED, the minimum distance between the end of the first quadrilateral area may have a seventh value Y _22. The value _{X 2} of the 5 may be greater than the sum of the sixth value _{Y 21} and the seventh value _{Y 22.}

In at least some embodiments, the end of the first quadrilateral region of the first support surface of the first light emitting member in the second direction and the second of the second support surface of the second light emitting member. the minimum distance between the end of the quadrilateral area of may have a value Z ₂ of the eighth. Sixth value _{Y 21,} the seventh value _{Y 22,} and the sum of the value _{Z 2} of the eighth, not fifth less than 0.9 times the value _{X 2} of the fifth value _{X 2} 1. It is not necessary to exceed 1 time.

In at least some embodiments, the sum of the sixth value Y ₂₁ , the seventh value Y ₂₂ , and the eighth value Z ₂ may be equal to the fifth value X ₂ .

  Some preferred embodiments will be described below with reference to the accompanying drawings to assist in a better understanding of the objects, technical features and advantages of the present disclosure.

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this disclosure. The drawings illustrate embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure. The drawings are not necessarily drawn to scale, and some members may be shown to be different in scale from the actual mounting size in order to demonstrate the spirit of the present disclosure. In the drawings, similar members are denoted by the same reference numerals.

1 shows a prior art light emitting member.

1 shows a prior art light emitting member.

It is a top view of the light emitting member in a 1st embodiment in this indication.

It is another top view of the light emitting member in 1st Embodiment in this indication.

It is a top view of the light emitting member in another embodiment of this indication (an electrode is not illustrated).

It is a top view of the light emitting member in another embodiment in this indication.

It is a top view of the illuminating device in 2nd Embodiment of this indication.

It is a top view of the illuminating device in the modification of 2nd Embodiment of this indication.

It is a top view of an illuminating device in another modification of a 2nd embodiment of this indication.

It is a top view of the light emitting member in a 3rd embodiment of this indication.

It is a top view of the illuminating device in 4th Embodiment of this indication.

It is a perspective view of the light emitting member in a 5th embodiment of this indication.

It is a top view of the light emitting member in a 5th embodiment of this indication.

  FIG. 2A is another top view of the light emitting member according to the first embodiment of the present disclosure. In the first embodiment of the present disclosure, the light emitting member 10 may include a support base 11 and a set 12 of LED dies.

  The support base 11 may include a support surface 111 that may include a plurality of upper electrodes 112 that are separate from each other and electrically insulated. The shape of the support surface 111 may be a quadrangle (for example, a rectangle or a square), a circle, an oval, a polygon, an irregular shape, or the like. In one embodiment, the shape of the support surface 111 may be a quadrilateral such as a square. In other words, the four sides of the support surface 111 may have the same length.

  Regardless of its shape, the support surface 111 has a normal direction (not shown), and two directions perpendicular to the normal direction are defined as a first direction D1 and a second direction D2. The first direction D1 and the second direction D2 are perpendicular to each other. In one embodiment, the first direction D1 may be a horizontal direction and the second direction D2 may be a vertical direction.

  Regardless of its shape, the support surface 111 includes two distal ends in the first direction D1 (that is, the point farthest from the center point of the support surface 111) and 2 in the second direction D2. Including one other distal end. When the support surface 111 is a quadrilateral, each of the two distal ends in the first direction D1 may be any point on the two sides 111A and 111B of the support surface 111, and the second direction Each of the two distal ends of D2 may be any point on the two sides 111C and 111D of the support surface 111. In other embodiments, when the support surface 111 is circular (eg, as shown in FIG. 3A), the four distal ends may be circularly shaped points 111E on the four quadrants.

  With reference to FIG. 2A, the four distal ends of the support surface 111 may define a virtual quadrilateral region 113 in which an end 1131 is formed by four sides of the virtual quadrilateral region 113. That is, the virtual quadrangular region 113 has four sides that form the end portion 1131 of the virtual quadrangular region 113.

  When the support surface 111 is a quadrilateral, the four sides of the virtual quadrilateral region 113 may be the four sides 111A-111D of the support surface 111, and the end 1131 of the virtual quadrangle region 113 is supported by It may be an end of the surface 111. In other embodiments, when the support surface 111 is circular (as shown in FIG. 3A), the support surface 111 is a circle inscribed in the virtual quadrilateral region 113 defined by the four distal ends. It may be.

  Referring to FIG. 2A, the LED die set 12 is disposed on the support surface 111 of the support base 11 and is electrically connected to the upper electrode 112 of the support surface 111. The upper electrode 112 further includes (a) electrical through-holes 13 </ b> A formed at the four corners of the support base 11, and (g) the surface of the support base 11 opposite to the support surface 111. Is electrically connected to an external power source via a lower electrode (not shown). Further, the common electrode 15 is also electrically connected to an external power source via (a) an electrical through hole 13B on the side on two opposite sides of the support base 11 and (b) a lower electrode (not shown). Connected. With this configuration, the light emitting member 10 can be easily surface-mounted on an arbitrary support structure. The LED die set 12 includes a first LED die 121, a second LED die 122, a third LED die 123, and a fourth LED die 124 arranged to form a matrix. It may contain at least. In other words, the first LED die 121 to the fourth LED die 124 are not arranged on a straight line, a horizontal line, or a diagonal line.

  The first LED die 121 to the fourth LED die 124 may be LED dies of different colors. Preferably, the first LED die 121, the second LED die 122, the third LED die 123, and the fourth LED die 124 are one or two red LED dies, one Or it may be selected from a set of two green LED dies and one or two blue LED dies. In other words, the first LED die 121 to the fourth LED die 124 may include two LED dies of the same color and two LED dies of one or two different colors.

  In one embodiment, the first LED die 121 and the fourth LED die 124 may both be red LED dies, and the second LED die 122 is a green LED die, The third LED die 123 may be a blue LED die.

  In addition to the color specification, as can be seen by referring to FIG. 2B, there is a specific relationship between the first LED die 121 and the fourth LED die 124 in terms of the position where they are arranged. is there. FIG. 2B is another top view of the light emitting member according to the first embodiment of the present disclosure. The light emitting member shown in FIG. 2B is the same as that shown in FIG. 2A, but FIG. 2B also shows some dimensions of the light emitting member.

The distance between the first LED die 121 and the second LED die 122 in the first direction D1 has a first value (X ₁ ), and the first LED die 121 and the virtual four sides The minimum distance between the end 1131 of the shape region 113 has a second value (Y ₁₁ ), and the minimum distance between the second LED die 122 and the end 1131 of the virtual quadrilateral region 113 is It has a third value (Y ₁₂ ). The minimum distance between the first LED die 121 (or the second LED die 122) and the end 1131 of the virtual quadrilateral region 113 is the first LED die 121 (or the second LED). The distance between the center point of the die 122) and a specific side of the virtual quadrangular region 113 may be used. In the case of the first LED die 121, the specific side of the virtual quadrilateral region 113 is the closest of the sides of the virtual quadrilateral region 113 to the first LED die 121 in the first direction D1. One (for example, the left side of the virtual quadrangular region 113 shown in FIG. 2B).

In one embodiment, the first value (X ₁ ) may be greater than the second value (Y ₁₁ ) plus the third value (Y ₁₂ ), ie, X ₁ > (Y ₁₁ + Y ₁₂ ). That is, the distance between the first LED die 121 and the second LED die 122 in the first direction D1 is the end of each of the first LED die 121 and the second LED die 122. It is larger than the distance between the portions 1131.

  In one embodiment, when the first LED die 121 to the fourth LED die 124 are arranged in an array, the first LED die 121, the second LED in the first direction D1. And the arrangement of the end 1131 of the virtual quadrilateral area 113 are reflected in the arrangement of the third LED die 123, the fourth LED die 124, and the end 1131 of the virtual quadrilateral area 113. May have been.

Accordingly, the first LED die 121 to the fourth LED die 124 may define a pixel P1 when emitting light (shown in FIG. 4). In the first direction D1, the second LED die 122 and the fourth LED die 124 together work with another pixel P2 (shown in FIG. 4) along with one or more LED dies of another light emitting member. ) May be defined (shown in FIG. 4 and described later). Similarly, in the first direction D1, the first LED die 121 and the third LED die 123 together define another pixel P2 with one or more LED dies of another light emitting member. You can do it. In other words, more than one pixel in the first direction D1 may be defined by the light emitting member 10, and the pixel pitch between the pixels may be smaller than the dimension (length or width) of the support surface 111. . The pixel pitch between the pixels in the first direction D1 may be 0.9 or 1.1 times the first value (X ₁ ). A more detailed description on this will be given later in connection with the second embodiment of the present disclosure.

The first LED die 121 to the fourth LED die 124 are similarly arranged in the second direction D2. The distance between the first LED die 121 and the third LED die 123 in the second direction D2 has a fifth value (X ₂ ), and the first LED die 121 and the virtual quadrilateral. The minimum distance between the end 1131 of the region 113 has a sixth value (Y ₂₁ ), and the minimum distance between the third LED die 123 and the end 1131 of the virtual quadrangular region 113 is the first distance. It has a value of 7 (Y ₂₂ ).

In one embodiment, the fifth value (X ₂ ) may be greater than the sixth value (Y ₂₁ ) plus the seventh value (Y ₂₂ ), ie, X ₂ > (Y ₂₁ + Y ₂₂ ). In other words, in the second direction D2, the distance between the first LED die 121 and the third LED die 123 is different from each of the first LED die 121 and the third LED die 123. It is larger than the distance between the end portions 1131.

Thus, in the second direction D2, the first LED die 121 and the second LED die 122 jointly define another pixel P2 with one or more LED dies of another light emitting member. (Shown in FIG. 4). Similarly, the third LED die 123 and the fourth LED die 124 together define another pixel P2 in the second direction D2, together with one or more LED dies of another light emitting member. (As shown in FIG. 4). That is, more than one pixel in the second direction D2 may be defined by the light emitting member 10, and the pixel pitch between the pixels may be smaller than the dimension (length or width) of the support surface 111. The pixel pitch between the pixels in the second direction D2 may be 0.9 or 1.1 times the fifth value (X ₂ ). A more detailed description on this will be given later in connection with the second embodiment of the present disclosure.

  On the other hand, when the first LED die 121 to the fourth LED die 124 are arranged in a specific pattern in the first direction D1 and the second direction D2, the first LED die 121 is provided. Any of the first to fourth LED dies 124 may define another pixel P3 (shown in FIG. 4) along with the respective LED dies of the three other light emitting members. That is, the four adjacent light emitting members 10 may jointly define the pixel P3.

In the above-described values, the first value (X ₁ ) and the fifth value (X ₂ ) may be the same. Thus, the first LED die 121 to the fourth LED die 124 may be arranged as a square matrix. The second value (Y ₁₁ ) and the third value (Y ₁₂ ) may be the same, and the sixth value (Y ₂₁ ) and the seventh value (Y ₂₂ ) may be the same. In other embodiments, the second value (Y ₁₁ ) and the third value (Y ₁₂ ) may be different (as shown in FIG. 3B), and the sixth value (Y ₂₁ ) and the seventh value The value (Y ₂₂ ) may be different (not shown).

Preferably, the first value (X ₁ ) or the fifth value (X ₂ ) is not greater than 1 millimeter (mm). More preferably, the first value (X ₁ ) or the fifth value (X ₂ ) is not greater than 0.8 mm. Therefore, the pixel pitch between the pixels defined by the light emitting member 10 is preferably not larger than 1.1 mm (1.1 times X ₁ or X ₂ ), more preferably 0.88 mm (X ₁ or X 0.88 times of ₂₎ is not greater than.

  FIG. 4 is a top view of the lighting device according to the second embodiment of the present disclosure. In the second embodiment of the present disclosure, the lighting device 1 may include a plurality of light emitting members 10.

  The plurality of light emitting members 10 of the lighting device 1 may be those of the first embodiment described above (including various embodiments described with reference to FIGS. 3A and 3B). Therefore, the technical features of the plurality of light emitting members 10 of the lighting device 1 may be the same as those described above. The plurality of light emitting members 10 may be arranged in an array. In one embodiment, the number of light emitting members 10 may be nine to form a 3 × 3 array.

  As in the first embodiment, in the first direction D1 or the second direction D2, each of the plurality of light emitting members 10 may define a pixel P1 (shown by a dark dashed line), and jointly, Another pixel P2 (shown by a thin broken line) may be defined together with one or a plurality of adjacent light emitting members 10. Thus, in the first direction D1 or the second direction D2, the lighting device 1 can provide more pixels within a given unit dimension and the pixel pitch between the pixels is small (eg 1.1 mm). Not exceed.) This preferably improves the resolution of the lighting device 1.

  Providing a visual experience in which a pixel defined by a plurality of light-emitting members 10 appears as an ambiguous, twisted or broken pixel P2 when viewed by a person viewing the lighting device 1 In order to avoid this, preferably, the distance between the plurality of light emitting members 10 is determined according to a method described later.

In particular, the minimum distance between the end portions 1131 of the virtual quadrangular region 113 of the plurality of light emitting members 10 in the first direction D1 may be the fourth value (Z ₁ ). That is, the minimum between the end portion 1131 of one support surface 111 in the plurality of light emitting members 10 and the end portion 1131 of the virtual quadrangular region 113 of the support surface 111 in another support base 11 in the first direction D1. The distance may be a fourth value (Z ₁ ). The sum of the second value (Y ₁₁ ), the third value (Y ₁₂ ), and the fourth value (Z ₁ ) is not less than 0.9 times the _first value (X ₁ ). It may not exceed 1.1 times the value of 1 (X ₁ ) (that is, 0.9 X ₁ ≦ (Y ₁₁ + Y ₁₂ + Z ₁ ) ≦ 1.1X ₁ ).

In one embodiment, the sum of the second value (Y ₁₁ ), the third value (Y ₁₂ ), and the fourth value (Z ₁ ) is preferably the first value (X ₁ ). (Ie, X ₁ = (Y ₁₁ + Y ₁₂ + Z ₁ )). In another embodiment, as shown in FIGS. 5A and 5B, the sum of the second value (Y ₁₁ ), the third value (Y ₁₂ ), and the fourth value (Z ₁ ) 1.1 times X ₁ or 0.9 times the first value X ₁ . 5A and 5B show a part of the light emitting member 10 of the lighting device 1.

In the second direction D2, the minimum distance between the end portions 1131 of the virtual quadrangular region 113 of the plurality of light emitting members 10 may be an eighth value (Z ₂ ). That is, the minimum between the end portion 1131 of one support surface 111 in the plurality of light emitting members 10 and the end portion 1131 of the virtual quadrangular region 113 of the support surface 111 in another support base 11 in the second direction D2. The distance may be an eighth value (Z ₂ ). The sum of the sixth value (Y ₂₁ ), the seventh value (Y ₂₂ ), and the eighth value (Z ₂ ) is not less than 0.9 times the fifth value (X ₂ ). It may not exceed 1.1 times the value (X ₂ ) of 5 (that is, 0.9 X ₂ ≦ (Y ₂₁ + Y ₂₂ + Z ₂ ) ≦ 1.1X ₂ ).

In one embodiment, the sum of the sixth value (Y ₂₁ ), the seventh value (Y ₂₂ ), and the eighth value (Z ₂ ) is preferably the fifth value (X ₂ ). (Ie, X ₂ = (Y ₂₁ + Y ₂₂ + Z ₂ ). In other embodiments (not shown), a sixth value (Y ₂₁ ), a seventh value (Y ₂₂ ), and total eighth value _{(Z 2)} is 1.1 times the fifth value _{(X 2),} or may be 0.9 times the fifth value _{(X 2).}

  Therefore, in the first direction D1 or the second direction D2, the pixel P2 defined jointly by the plurality of light emitting members 10 and the pixel P1 individually defined by each of the plurality of light emitting members 10 are for the viewer. The visual experience provided may be substantially the same.

The relationship between the first value (X ₁ ) and the fourth value (Z ₁ ) is that the first value (X ₁ ) is the second value (Y ₁₁ ) and the third value (Y ₁₂ ). May be obtained by adding 0.9 to 1.1 times the fourth value (Z ₁ ) (that is, X ₁ = Y ₁₁ + Y ₁₂ + (0.9 ~ 1.1) × Z _1). The relationship between the fifth value (X ₂ ) and the eighth value (Z ₂ ) is that the fifth value (X ₂ ) is the sixth value (Y ₂₁ ) and the seventh value (Y ₂₂ ). May be obtained by adding 0.9 to 1.1 times the eighth value (Z ₂ ) (ie, X ₂ = Y ₂₁ + Y ₂₂ + (0.9 ~ 1.1) × Z _2). These relationships allow the pixel P2 defined jointly by the plurality of light emitting members 10 to provide an improved visual experience.

  FIG. 6 is a top view of the light emitting member according to the third embodiment of the present disclosure. In a third embodiment of the present disclosure, a light emitting member 20 may be provided, which may be similar to the light emitting member 10 described above. Prioritizing simplicity, the description of the technical features of the light emitting member 20 can be described with respect to the light emitting member 10, and will not be repeated here.

  The light emitting member 20 may include a support base 21 and a set 22 of LED dies. The support base 21 may include a support surface 211 and a plurality of electrodes 212. The support surface 211 may include two distal ends in the first direction D1 and two other distal ends in the second direction D2. The four terminal ends may jointly define a virtual quadrilateral region 213 having an end 2131. The LED die set 22 may include at least six LED dies 221 disposed on the support surface 211 and arranged in an array. In one embodiment, the number of LED dies 221 may be 16 to form a 4 × 4 array.

  Depending on the respective position in the array, the plurality of LED dies 221 may be further divided into “disposed on two sides” and “not disposed on two sides”.

  In particular, “disposed on two sides” in the first direction D1 refers to the LED dies 221A that form the first row of the array along the first direction D1 and the last row of the array. May be defined as the LED die 221B (ie, the leftmost four LED die 221A and the rightmost four LED die 221B). In the second direction D2, “disposed on two sides” means that along the second direction D2, the LED dies 221C forming the first row of the array and the last row of the array are formed. LED dies 221D (ie, the top four LED dies 221C and the bottom four LED dies 221D).

  An LED die 221 that does not belong to “what is placed on two sides” may be defined as “one that is not placed on two sides”.

The plurality of LED dies 221 may be arranged in a specific pattern in the first direction D1. In particular, in the first direction D1, the distance between any two adjacent ones of the LED dies 221 has a first value (X ₁ ) and the end 2131 of the virtual quadrilateral region 213. And the minimum distance between each of the LED dies 221A and each of the LED dies 221B on the two sides has a second value (Y ₁₁ ) and a third value (Y ₁₂ ), respectively. The value of 1 (X ₁ ) is greater than the sum of the second value (Y ₁₁ ) and the third value (Y ₁₂ ).

The plurality of LED dies 221 may further be arranged in a specific pattern in the second direction D2. In particular, in the second direction D2, the distance between any two adjacent ones of the LED dies 221 has a fifth value (X ₂ ), and the end 2131 of the virtual quadrilateral region 213. And the minimum distance between each of the LED dies 221C and each of the LED dies 221D on the two sides has a sixth value (Y ₂₁ ) and a seventh value (Y ₂₂ ), respectively. The value (X ₂ ) of 5 is larger than the sum of the sixth value (Y ₂₁ ) and the seventh value (Y ₂₂ ).

  Therefore, as shown in FIG. 7, when a plurality of light emitting members 20 are arranged in a quadrilateral shape to form the lighting device 2, any four adjacent LED dies 221 of each light emitting member 20 are first The pixel P1 (shown by a dark broken line) in the second direction D1 or the second direction D2 may be defined. The LED dies 221C and 221D (or LED dies 221A and 221B) on two sides of the plurality of LED dies 221 jointly cooperate with one or more LED dies 221 of one or more adjacent light emitting members 20. In addition, another pixel P2 (indicated by a thin broken line) may be defined.

On the other hand, the distance between the end portions 2131 of the virtual quadrangular region 213 of any two adjacent light emitting members 20 has a fourth value (Z ₁ ) in the first direction D1, and the second direction D2 Has an eighth value (Z ₂ ). The sum of the second value (Y ₁₁ ), the third value (Y ₁₂ ), and the fourth value (Z ₁ ) is not less than 0.9 times the _first value (X ₁ ). It may not exceed 1.1 times the value of 1 (X ₁ ) (that is, 0.9 X ₁ ≦ (Y ₁₁ + Y ₁₂ + Z ₁ ) ≦ 1.1X ₁ ). The sum of the sixth value (Y ₂₁ ), the seventh value (Y ₂₂ ), and the eighth value (Z ₂ ) is not less than 0.9 times the fifth value (X ₂ ). It is not necessary to exceed 1.1 times the value of 5 (X ₂ ) (that is, 0.9 X ₂ ≦ (Y ₂₁ + Y ₂₂ + Z ₂ ) ≦ 1.1X ₂ ).

  Therefore, in the first direction D <b> 1 or the second direction D <b> 2, the pixel P <b> 2 defined jointly by the plurality of light emitting members 20 can provide an improved visual experience to the viewer.

  Prioritizing simplicity, the description of the technical features of the lighting device 2 can be described with respect to the lighting device 1 and will not be repeated here.

  FIG. 8A is a perspective view of the light emitting member 30 according to the fifth embodiment of the present disclosure. FIG. 8B is a top view of the light emitting member 30 according to the fifth embodiment of the present disclosure. Compared to the other embodiments described above, such as the light emitting members 10 and 20, the light emitting member 30 has a form factor (e.g., dimensions) that includes an electrical through hole 13A immediately below the LED dies 121, 122, 123, and 124. It is further minimized by arranging and / or arranging the electrical through hole 13B immediately below the common electrode 15 (see FIG. 8B). In this configuration, since there is no electrical through hole around the end of the support base 11, the size of the light emitting member 30 can be further minimized. The dimension of the light emitting member 30 having this configuration need not be larger than 0.8 mm × 0.8 mm (for example, length × width in the top view as shown in FIG. 8B). In one embodiment, the dimensions may range from about 0.3 mm × 0.3 mm to 0.6 mm × 0.6 mm (eg, length × width in the top view as shown in FIG. 8B).

In view of the foregoing, various embodiments of the light emitting member and lighting device of the present disclosure have a relatively small pixel pitch, thereby providing the lighting device with improved resolution and an improved visual experience for the viewer. provide.
<Additional information>

  The embodiment of the light emitting member of the illumination device according to the present disclosure is not limited to the above-described embodiment. Actual design and implementation may vary from the embodiments described herein. Those skilled in the art will be able to create various deviations and enhancements based on the disclosed embodiments, and these deviations and enhancements are within the scope of this disclosure. . Therefore, the protection scope of patents emitted on the basis of this disclosure is determined by the following claims.

  The above description of implementation examples is for purposes of illustration, and the claimed disclosure is better described by describing specific numbers, material configurations, and other details. However, it will be apparent to one skilled in the art that the claimed subject matter may be practiced even with the use of details that differ from those in the examples described herein. In other examples, known features may be omitted or simplified to clarify the description of the implementation.

  Furthermore, the word “example” herein is used as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, the use of the word example is intended to specifically present ideas and techniques. For example, the term “technology” may refer to one or more devices, apparatuses, systems, methods, products, and / or computer-readable instructions in the context described herein.

  As used herein, the term “or” is intended to mean a comprehensive OR, not an exclusive OR. In other words, unless specified otherwise or apparent from context, the expression “X uses A or B” can be any natural inclusive permutation. It is intended to mean. In other words, when X uses A when X uses B, or X uses both A and B, the condition that X uses A or B is as described above. It is satisfied in any case. In addition, when the articles “a” and “an” (one) are utilized in the present application and the appended claims, these articles generally designate the singular or where otherwise specified. Should be interpreted to mean "one or more", except where apparent from the context.

  For purposes of this disclosure and the following claims, the terms “coupled” and “connected” may be used to describe how the various elements are interfaced. These described associations of the various elements may be direct or indirect.

Claims (20)

One or a plurality of light-emitting members comprising a first light-emitting member,
The first light emitting member is
A first support base;
A set of light emitting diode dies (a set of LED dies);
The first support base includes a first support surface, the first support surface having two distal ends in a first direction and a second direction perpendicular to the first direction. Two distal ends, the four distal ends defining a first quadrilateral region;
The LED die set is disposed on the first support surface and arranged in an array of a first LED die, a second LED die, a third LED die, and a fourth LED. Including at least a die of
The distance between the first LED die and the die of the second LED in the first direction has a first value X _1,
The minimum distance between the end of the said first LED die first quadrilateral region has a second value Y _11,
Wherein the die of the second LED, the minimum distance between the end portion of the first quadrilateral area has a third value Y _12,
It said first value _{X 1} is greater than the sum of the second value _{Y 11} and the third value _{Y 12,} 1 or more light emitting members. A second light emitting member;
The second light emitting member is
A second support base;
The second support base includes a second support surface, the second support surface having two distal ends in the first direction and two distal ends in the second direction. And the four distal ends of the second support surface define a second quadrilateral region;
The end of the first quadrilateral region of the first support surface of the first light emitting member in the first direction and the second support surface of the second light emitting member. The minimum distance between the ends of the quadrilateral region of 2 has a fourth value Z ₁ ,
The sum of the second value Y ₁₁ , the third value Y ₁₂ , and the fourth value Z ₁ is not less than 0.9 times the first value X ₁ , and the first value does not exceed 1.1 times the X _1, 1 or more light emitting member according to claim 1. Said second value _{Y 11,} the third value _{Y 12,} and wherein the sum of the fourth value _{Z 1} is equal to the first value _{X 1,} according to claim 2 1 or more Luminescent member. The distance between the first of said the LED die third LED die in the second direction has a fifth value X _2,
The minimum distance between the first LED die and the end of the first quadrilateral region has a sixth value Y ₂₁ ,
Wherein the die of the third LED, the minimum distance between the end portion of the first quadrilateral area has a seventh value Y _22,
It said fifth value X _2, the sixth value Y _21, and the sum is greater than the seventh value Y _22, 1 or more light emitting members according to any one of claims 1 to 3 . The end of the first quadrilateral region of the first support surface of the first light emitting member in the second direction and the second of the second support surface of the second light emitting member. minimum distance has a value Z ₂ eighth between said end of the quadrilateral area of
The sum of the sixth value Y ₂₁ , the seventh value Y ₂₂ , and the eighth value Z ₂ is not less than 0.9 times the fifth value X ₂ , and the fifth value does not exceed 1.1 times the X _2, 1 or more light emitting member according to claim 4. Said sixth value _{Y 21,} the seventh value _{Y 22,} and wherein the sum of the values _{Z 2} eighth is equal to the value _{X 2} of the fifth, of one or more of claim 5 Luminescent member. The shape of the first support surface is a quadrilateral,
The end of the first quadrilateral region includes an end of the first support surface;
One or a plurality of light emitting members according to any one of claims 1 to 6.   The one or more light emitting members according to claim 7, wherein the first support surface has a square shape.   9. The method of claim 1, wherein the first LED die, the second LED die, the third LED die, and the fourth LED die are arranged in a square matrix. One or a plurality of light-emitting members according to the item.   The first LED die, the second LED die, the third LED die, and the fourth LED die are one or two red LED dies, one or two green dies. 10. One or more light emitting members according to any one of the preceding claims, comprising an LED die, one or two blue LED dies, or a combination thereof. The one or more light emitting members according to any one of claims 1 to 10, wherein the first value X1 is not larger than ₁ mm. It said fifth value X ₂ is not greater than 1 mm, 1 or more light emitting members according to any one of claims 1 to 11. A lighting device comprising a plurality of light emitting members,
Each of the plurality of light emitting members is
A support base;
A set of light emitting diode dies (a set of LED dies);
The support base includes a support surface, and the support surface includes two distal ends in a first direction and two distal ends in a second direction perpendicular to the first direction. The four distal ends define a quadrilateral region;
The set of LED dies is arranged on the support surface and includes a first LED die, a second LED die, a third LED die, and a fourth LED die arranged in an array. Including at least
The distance between the first LED die and the die of the second LED in the first direction has a first value X _1,
The minimum distance between the end of the die and the quadrilateral region of the first LED has a second value Y _11,
Wherein the die of the second LED, the minimum distance between the end of the quadrilateral area has a third value Y _12,
It said first value _{X 1} is greater than the sum of the second value _{Y 11} and the third value _{Y 12,}
The plurality of light emitting members are arranged in an array,
Of the plurality of light emitting members, the end portion of the quadrilateral region of the support surface of the support base of the first light emitting member is provided adjacent to the first light emitting member in the first direction. and, the minimum distance between the end portion of the said quadrilateral region of the support base of the support surface of the second light-emitting members of the plurality of light emitting members has a fourth value Z _1,
The sum of the second value Y ₁₁ , the third value Y ₁₂ , and the fourth value Z ₁ is not less than 0.9 times the first value X ₁ , and the first value does not exceed 1.1 times the X _1, illumination device. The distance between the first of said the LED die third LED die has a fifth value X _2,
The minimum distance between the first LED die and the end of the quadrilateral region has a sixth value Y ₂₁ ,
Wherein the die of the third LED, the minimum distance between the end of the quadrilateral area has a seventh value Y _22,
Said fifth value _{X 2,} the sixth value _{Y 21,} and greater than the sum of the seventh value _{Y 22,}
The end of the quadrilateral region of the support surface of the support base of the first light emitting member in the second direction and the quadrilateral region of the support surface of the support base of the second light emitting member. minimum distance has a value Z ₂ of the eighth between said ends,
The sum of the sixth value Y ₂₁ , the seventh value Y ₂₂ , and the eighth value Z ₂ is not less than 0.9 times the fifth value X ₂ , and the fifth value The lighting device according to claim 13, wherein the lighting device does not exceed 1.1 times X ₂ . One or a plurality of light-emitting members comprising a first light-emitting member,
The first light emitting member is
A first support base;
A set of light emitting diode dies (a set of LED dies);
The first support base includes a first support surface, the first support surface having two distal ends in a first direction and a second direction perpendicular to the first direction. Two distal ends, the four distal ends defining a first quadrilateral region;
The set of LED dies includes at least six LED dies disposed on the first support surface and arranged in an array;
The distance between two adjacent LED dies of the die set of the LED in the first direction has a first value X _1,
A die of the plurality of LED sets of the LED die of the first side, the minimum distance between the end of the first quadrilateral area has a second value Y _11,
The minimum distance between the plurality of LED dies in the LED die set on the second side opposite to the first side and the end of the first quadrilateral region is a third value Y _{With 12}
It said first value _{X 1} is greater than the sum of the second value _{Y 11} and the third value _{Y 12,} 1 or more light emitting members. A second light emitting member;
The second light emitting member is
A second support base;
The second support base includes a second support surface, the second support surface having two distal ends in the first direction and two distal ends in the second direction. And the four distal ends of the second support surface define a second quadrilateral region;
The end of the first quadrilateral region of the first support surface of the first light emitting member in the first direction and the second support surface of the second light emitting member. The minimum distance between the ends of the quadrilateral region of 2 has a fourth value Z ₁ ,
The sum of the second value Y ₁₁ , the third value Y ₁₂ , and the fourth value Z ₁ is not less than 0.9 times the first value X ₁ , and the first value The one or more light-emitting members according to claim 15, which does not exceed 1.1 times X ₁ . It said second value _{Y 11,} the third value _{Y 12,} and wherein the sum of the fourth value _{Z 1} is equal to the first value _{X 1,} of one or more of claim 16 Luminescent member. The distance between the die between the two other adjacent LED of a set of dies of the LED in the second direction has a fifth value X _2,
The minimum distance between the LED dies of the set of LED dies on the first side and the end of the first quadrilateral region has a sixth value Y ₂₁ ,
Wherein the die of the plurality of LED of the second side of the set of LED die, the minimum distance between the end portion of the first quadrilateral area has a seventh value Y _22,
It said fifth value X _2, the sum is greater than the sixth value Y ₂₁ and the seventh value Y _22, 1 or more light emitting members according to any one of claims 15 to 17. The end of the first quadrilateral region of the first support surface of the first light emitting member in the second direction and the second of the second support surface of the second light emitting member. minimum distance has a value Z ₂ eighth between said end of the quadrilateral area of
The sum of the sixth value Y ₂₁ , the seventh value Y ₂₂ , and the eighth value Z ₂ is not less than 0.9 times the fifth value X ₂ , and the fifth value does not exceed 1.1 times the X _2, 1 or more light emitting member according to claim 18. Said sixth value _{Y 21,} the seventh value _{Y 22,} and wherein the sum of the values _{Z 2} eighth is equal to the value _{X 2} of the fifth, of one or more of claim 19 Luminescent member.

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