Patent Publication Number: US-2023155093-A1

Title: Terminal connection structure, display unit and display

Description:
The present disclosure is a National Stage Filing of the PCT International Application No. PCT/CN2021/085192 filed on Apr. 2, 2021, which claims priority to the Chinese Patent Application with an application number of 202010270049.4 and a title of “Terminal Connection Structure, Display Unit and Display”, filed to China National Intellectual Property Administration on Apr. 8, 2020, the disclosures of which are hereby incorporated by reference. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the technical field of optics, and for example, relates to a terminal connection structure, a display unit and a display. 
     BACKGROUND 
     To control a light emitting device, a terminal for leading a wire from the light emitting device needs to be provided. 
     In a process of implementing embodiments of the present disclosure, at least the following problems are found in related technologies: 
     there is no technical solution to arrange terminals for leading wires from light emitting devices when a size of the light emitting devices is very small. 
     SUMMARY 
     In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not intended to be a general comment, nor to identify key/important components or describe the scope of protection of the embodiments, but to be a preface to the following detailed description. 
     Embodiments of the present disclosure provide a terminal connection structure, a display unit and a display, to solve a technical problem that there is no technical solution to arrange terminals for leading wires from light emitting devices. 
     The terminal connection structure provided by embodiments of the present disclosure includes a plurality of terminals, a plurality of terminal-side conductive holes, an electrical connection layer, and a plurality of light emitting device-side conductive holes; where 
     the electrical connection layer is capable of being electrically connected with a plurality of light emitting devices through the plurality of light emitting device-side conductive holes, and electrically connected with the plurality of terminals through the plurality of terminal-side conductive holes; and 
     the plurality of terminals are arranged in array. 
     In some embodiments, the electrical connection layer may include at least two electrical connection layers; and the at least two electrical connection layers are capable of being electrically connected with a plurality of light emitting devices through the plurality of light emitting device-side conductive holes, and electrically connected with the plurality of terminals through the plurality of terminal-side conductive holes. 
     In some embodiments, the at least two electrical connection layers may include a light emitting device-side electrical connection layer and a terminal-side electrical connection layer; the plurality of light emitting device-side conductive holes may include a plurality of first light emitting device conductive holes and second light emitting device conductive holes; 
     where the light emitting device-side electrical connection layer is capable of being electrically connected with the plurality of light emitting devices through the plurality of first light emitting device conductive holes; and 
     the terminal-side electrical connection layer is capable of being electrically connected with the plurality of light emitting devices through the plurality of second light emitting device conductive holes. 
     In some embodiments, at least one of the plurality of light emitting devices may include a first electrode and a second electrode; 
     where the light emitting device-side electrical connection layer is capable of being electrically connected with the first electrode through at least one of the plurality of first light emitting device conductive holes; and 
     the terminal-side electrical connection layer is capable of being electrically connected with the second electrode through at least one of the plurality of second light emitting device conductive holes. 
     In some embodiments, each light emitting device of the plurality of light emitting devices may include a first electrode and a second electrode; 
     where the light emitting device-side electrical connection layer is capable of being electrically connected with first electrodes of different light emitting devices in the plurality of light emitting devices through the plurality of first light emitting device conductive holes respectively; and 
     the terminal-side electrical connection layer is capable of being electrically connected with second electrodes of different light emitting devices in the plurality of light emitting devices through the plurality of second light emitting device conductive holes respectively. 
     In some embodiments, the terminal-side electrical connection layer and the light emitting device-side electrical connection layer may be sequentially arranged from the plurality of terminals to the plurality of light emitting devices. 
     In some embodiments, at least one of the following insulation layers may further be included: 
     an insulation layer for isolating the plurality of terminals from the terminal-side electrical connection layer; 
     an insulation layer for isolating the terminal-side electrical connection layer from the light emitting device-side electrical connection layer; and 
     an insulation layer for isolating the light emitting device-side electrical connection layer from the plurality of light emitting devices. 
     In some embodiments, the plurality of terminal-side conductive holes may include a plurality of first terminal conductive holes and a plurality of second terminal conductive holes; 
     where the light emitting device-side electrical connection layer may be electrically connected with the plurality of terminals through the plurality of first terminal conductive holes; 
     the terminal-side electrical connection layer may be electrically connected with the plurality of terminals through the plurality of second terminal conductive holes. 
     In some embodiments, the plurality of terminals may include at least one first terminal and at least one second terminal; 
     where the light emitting device-side electrical connection layer may be electrically connected with the at least one first terminal through at least one of the plurality of first terminal conductive holes; and 
     the terminal-side electrical connection layer may be electrically connected with the at least one second terminal through at least one of the plurality of second terminal conductive holes. 
     In some embodiments, at least one first terminal may include a plurality of first terminals, and at least one second terminal may include a plurality of second terminals; 
     where the light emitting device-side electrical connection layer may be electrically connected with the plurality of first terminals through the plurality of first terminal conductive holes respectively; and 
     the terminal-side electrical connection layer may be electrically connected with the plurality of second terminals through the plurality of second terminal conductive holes respectively. 
     In some embodiments, at least one of the light emitting device-side electrical connection layer and the terminal-side electrical connection layer may be arranged in the following modes: 
     the light emitting device-side electrical connection layer includes at least one layer of light emitting device-side conductive lines; and 
     the terminal-side electrical connection layer includes at least one layer of terminal-side conductive lines. 
     In some embodiments, at least one of the light emitting device-side conductive lines and the terminal-side conductive lines may be arranged in array. 
     In some embodiments, at least one of the light emitting device-side conductive lines and the terminal-side conductive lines may be arranged in array in a form of rows or columns. 
     In some embodiments, 
     the light emitting device-side conductive lines may be arranged in array in a form of rows, and the terminal-side conductive lines may be arranged in array in a form of columns; or, 
     the light emitting device-side conductive lines may be arranged in array in a form of columns, and the terminal-side conductive lines may be arranged in array in a form of rows. 
     In some embodiments, each line of the terminal-side conductive lines may be electrically connected with at least one terminal of the plurality of terminals. 
     In some embodiments, at least one terminal of the plurality of terminals may cover at least one terminal-side conductive hole of the plurality of terminal-side conductive holes. 
     In some embodiments, part or all of the plurality of terminals may be arranged at equal intervals. 
     In some embodiments, part of the plurality of terminals may be arranged in array; or, all of the plurality of terminals may be arranged in array. 
     The display unit provided by embodiments of the present disclosure includes a plurality of light emitting devices and the above terminal connection structure. 
     In some embodiments, the plurality of light emitting devices may include at least one light emitting diode (LED) light emitting device. 
     In some embodiments, at least one LED light emitting device may include at least one Micro LED light emitting device. 
     In some embodiments, the plurality of light emitting devices may be arranged in array. 
     In some embodiments, 
     part of the plurality of light emitting devices may be arranged in array; or, 
     all of the plurality of light emitting devices may be arranged in array. 
     The display provided by embodiments of the present disclosure includes the above display unit. 
     The terminal connection structure, the display unit and the display provided by embodiments of the present disclosure may achieve the following technical effects: 
     terminals for leading wires from light emitting devices may be arranged effectively even if a size of the light emitting devices is very small. 
     The above general description and the following description are exemplary and explanatory only, and are not intended to limit the present disclosure. 
    
    
     
       DESCRIPTION OF DRAWINGS 
       One or more embodiments are illustrated by the corresponding drawings, and the illustrations and drawings do not limit the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements, and the drawings are not intended to limit the scale, where: 
         FIGS.  1 A and  1 B  are structural schematic diagrams of a terminal connection structure provided by embodiments of the present disclosure; 
         FIG.  2    is another structural schematic diagram of the terminal connection structure provided by embodiments of the present disclosure; 
         FIG.  3    is another structural schematic diagram of the terminal connection structure provided by embodiments of the present disclosure; 
         FIG.  4    is another structural schematic diagram of the terminal connection structure provided by embodiments of the present disclosure; 
         FIG.  5    is another structural schematic diagram of the terminal connection structure provided by embodiments of the present disclosure; 
         FIG.  6    is another structural schematic diagram of the terminal connection structure provided by embodiments of the present disclosure; 
         FIG.  7    is another structural schematic diagram of the terminal connection structure provided by embodiments of the present disclosure; 
         FIG.  8    is another structural schematic diagram of the terminal connection structure provided by embodiments of the present disclosure; 
         FIGS.  9 A and  9 B  are structural schematic diagrams of a light emitting device-side electrical connection layer and a terminal-side electrical connection layer provided by embodiments of the present disclosure; 
         FIGS.  10 A,  10 B,  10 C and  10 D  are schematic diagrams of arrangements of light emitting device-side conductive lines and terminal-side conductive lines provided by embodiments of the present disclosure; 
         FIG.  11    is a structural schematic diagram of a display unit provided by embodiments of the present disclosure; 
         FIG.  12    is another structural schematic diagram of the display unit provided by embodiments of the present disclosure; 
         FIG.  13    is another structural schematic diagram of the display unit provided by embodiments of the present disclosure; 
         FIG.  14    is another structural schematic diagram of the display unit provided by embodiments of the present disclosure; and 
         FIGS.  15 A and  15 B  are structural schematic diagrams of a display provided by embodiments of the present disclosure. 
     
    
    
     REFERENCE NUMERALS 
       110 : terminal;  111 : first terminal;  112 : second terminal;  120 : terminal-side conductive hole;  121 : first terminal conductive hole;  122 : second terminal conductive hole;  130 : electrical connection layer;  131 : light emitting device-side electrical connection layer;  1311 : light emitting device-side conductive line;  132 : terminal-side electrical connection layer;  1321 : terminal-side conductive line;  140 : light emitting device-side conductive hole;  141 : first light emitting device conductive hole;  142 : second light emitting device conductive hole;  150 : light emitting device;  151 : first electrode;  152 : second electrode;  153 : LED light emitting device;  154 : Micro LED light emitting device;  160 : insulation layer;  170 : insulation layer;  180 : insulation layer;  200 : display unit; and  300 : display. 
     DETAILED DESCRIPTION 
     To understand features and technical contents of embodiments of the present disclosure in more detail, implementation of the embodiments of the present disclosure is described in detail below with reference to accompanying drawings; and the accompanying drawings are used for reference only, rather than limiting the embodiments of the present disclosure. In following technical description, for the convenience of explanation, a thorough understanding of the disclosed embodiments is provided through more details. However, one or more embodiments may be implemented without the details. In other cases, to simplify the accompanying drawings, well-known structures and apparatuses may be shown simplistically. 
     Referring to  FIGS.  1 A and  1 B , embodiments of the present disclosure provide a terminal connection structure, including a plurality of terminals  110 , a plurality of terminal-side conductive holes  120 , an electrical connection layer  130 , and a plurality of light emitting device-side conductive holes  140 ; where 
     the electrical connection layer  130  is capable of being electrically connected with a plurality of light emitting devices  150  through the plurality of light emitting device-side conductive holes  140 , and electrically connected with a plurality of terminals  110  through the plurality of terminal-side conductive holes  120 ; and the plurality of terminals  110  are arranged in array. 
     In some embodiments, the electrical connection layer  130  may include at least two electrical connection layers; and the at least two electrical connection layers are capable of being electrically connected with the plurality of light emitting devices  150  through the plurality of light emitting device-side conductive holes  140 , and electrically connected with the plurality of terminals  110  through the plurality of terminal-side conductive holes  120 . 
     Referring to  FIG.  2   , in some embodiments, the at least two electrical connection layers may include a light emitting device-side electrical connection layer  131  and a terminal-side electrical connection layer  132 . Optionally, the plurality of light emitting device-side conductive holes  140  may include a plurality of first light emitting device conductive holes  141  and second light emitting device conductive holes  142 . 
     In some embodiments, the light emitting device-side electrical connection layer  131  is capable of being electrically connected with the plurality of light emitting devices  150  through the plurality of first light emitting device conductive holes  141 ; and the terminal-side electrical connection layer  132  is capable of being electrically connected with the plurality of light emitting devices  150  through the plurality of second light emitting device conductive holes  142 . 
     Referring to  FIG.  3   , in some embodiments, at least one of the plurality of light emitting devices  150  may include a first electrode  151  and a second electrode  152 . 
     In some embodiments, the light emitting device-side electrical connection layer  131  is capable of being electrically connected with the first electrode  151  through at least one of the plurality of first light emitting device conductive holes  141 ; and the terminal-side electrical connection layer  132  is capable of being electrically connected with the second electrode  152  through at least one of the plurality of second light emitting device conductive holes  142 . 
     Referring to  FIG.  4   , in some embodiments, each light emitting device  150  of the plurality of light emitting devices  150  may include a first electrode  151  and a second electrode  152 . 
     In some embodiments, the light emitting device-side electrical connection layer  131  is capable of being electrically connected with first electrodes  151  of different light emitting devices  150  of the plurality of light emitting devices  150  through the plurality of first light emitting device conductive holes  141  respectively; and the terminal-side electrical connection layer  132  is capable of being electrically connected with second electrodes  152  of different light emitting devices  150  of the plurality of light emitting devices  150  through the plurality of second light emitting device conductive holes  142  respectively. 
     In some embodiments, the terminal-side electrical connection layer  132  and the light emitting device-side electrical connection layer  131  may be sequentially arranged from the plurality of terminals  110  to the plurality of light emitting devices  150 . 
     Referring to  FIG.  5   , in some embodiments, the terminal connection structure may further include at least one of the following insulation layers: 
     an insulation layer  160  for isolating the plurality of terminals  110  from the terminal-side electrical connection layer  132 ; 
     an insulation layer  170  for isolating the terminal-side electrical connection layer  132  from the light emitting device-side electrical connection layer  131 ; and 
     an insulation layer  180  for isolating the light emitting device-side electrical connection layer  131  from the plurality of light emitting devices  150 . 
     In some embodiments, at least one of the insulation layer  160 , the insulation layer  170  and the insulation layer  180  may include at least one layer of insulation structure. 
     Referring to  FIG.  6   , in some embodiments, the plurality of terminal-side conductive holes  120  may include a plurality of first terminal conductive holes  121  and a plurality of second terminal conductive holes  122 . 
     In some embodiments, the light emitting device-side electrical connection layer  131  may be electrically connected with the plurality of terminals  110  through the plurality of first terminal conductive holes  121 ; and the terminal-side electrical connection layer  132  may be electrically connected with the plurality of terminals  110  through the plurality of second terminal conductive holes  122 . 
     Referring to  FIG.  7   , in some embodiments, the plurality of terminals  110  may include at least one first terminal  111  and at least one second terminal  112 . 
     In some embodiments, the light emitting device-side electrical connection layer  131  may be electrically connected with the at least one first terminal  111  through at least one of the plurality of first terminal conductive holes  121 ; and the terminal-side electrical connection layer  132  may be electrically connected with the at least one second terminal  112  through at least one of the plurality of second terminal conductive holes  122 . 
     Referring to  FIG.  8   , in some embodiments, the at least one first terminal  111  may include a plurality of first terminals  111 ; and at least one second terminal  112  may include a plurality of second terminals  112 . 
     In some embodiments, the light emitting device-side electrical connection layer  131  may be electrically connected with the plurality of first terminals  111  through the plurality of first terminal conductive holes  121  respectively; and the terminal-side electrical connection layer  132  may be electrically connected with the plurality of second terminals  112  through the plurality of second terminal conductive holes  122  respectively. 
     Referring to  FIGS.  9 A and  9 B , in some embodiments, at least one of the light emitting device-side electrical connection layer  131  and the terminal-side electrical connection layer  132  may be arranged in the following modes: 
     the light emitting device-side electrical connection layer  131  includes at least one layer of light emitting device-side conductive lines  1311 ; and 
     the terminal-side electrical connection layer  132  includes at least one layer of terminal-side conductive lines  1321 . 
     In  FIG.  9 A , the light emitting device-side conductive lines  1311  of different layers are exemplified from top to bottom in the light emitting device-side electrical connection layer  131 . Optionally, each wire segment in the light emitting device-side electrical connection layer  131  represents a layer of light emitting device-side conductive lines  1311 . 
     In  FIG.  9 B , the terminal-side conductive lines  1321  of different layers are exemplified from top to bottom in the terminal-side electrical connection layer  132 . Optionally, each wire segment in the terminal-side electrical connection layer  132  represents a layer of terminal-side conductive lines  1321 . 
     Referring to  FIGS.  10 A,  10 B,  10 C and  10 D , in some embodiments, at least one of the light emitting device-side conductive lines  1311  and the terminal-side conductive lines  1321  may be arranged in array. 
     In some embodiments, at least one of the light emitting device-side conductive lines  1311  and the terminal-side conductive lines  1321  may be arranged in array in a form of rows or columns. 
     As shown in  FIGS.  10 A and  10 B , in some embodiments, the light emitting device-side conductive lines  1311  may be arranged in array in a form of rows; and the terminal-side conductive lines  1321  may be arranged in array in a form of columns. As shown in  FIGS.  10 C and  10 D , in some embodiments, the light emitting device-side conductive lines  1311  may be arranged in array in a form of columns; and the terminal-side conductive lines  1321  may be arranged in array in a form of rows. 
     As shown in  FIGS.  10 A,  10 B,  10 C and  10 D , an array arrangement mode of the light emitting device-side conductive lines  1311  and the terminal-side conductive lines  1321  may be a row-and-column mode. In some embodiments, the array arrangement mode of the light emitting device-side conductive lines  1311  and the terminal-side conductive lines  1321  may be different from that shown in  FIG.  1 B , but may be arrangement modes in other array shapes, such as circular, elliptical, triangular and other array arrangement modes. Optionally, the array arrangement mode of the light emitting device-side conductive lines  1311  and the terminal-side conductive lines  1321  is insignificant, as long as a plurality of terminals  110  for leading wires from the light emitting devices  150  may be effectively arranged. 
     In some embodiments, each line of the terminal-side conductive lines  1321  may be electrically connected with at least one terminal  110  of the plurality of terminals  110 . Optionally, each line of the light emitting device-side conductive lines  1311  may be electrically connected with at least one terminal  110  of the plurality of terminals  110 . 
     In some embodiments, each line of the terminal-side conductive lines  1321  may be electrically connected with one second terminal  112  of the plurality of second terminals  112 , so that different lines of the terminal-side conductive lines  1321  are electrically connected with different second terminals  112  of the plurality of second terminals  112  respectively. Optionally, each line of the terminal-side conductive lines  1321  may be electrically connected with at least two second terminals  112  of the plurality of second terminals  112 , to provide a backup of electrical connection between the second terminals  112  and the terminal-side conductive lines  1321 . 
     In some embodiments, each line of the light emitting device-side conductive lines  1311  may be electrically connected with one first terminal  111  of the plurality of first terminals  111 , so that different lines of the light emitting device-side conductive lines  1311  are electrically connected with different first terminals  111  of the plurality of first terminals  111  respectively. Optionally, each line of the light emitting device-side conductive lines  1311  may be electrically connected with at least two first terminals  111  of the plurality of first terminals  111 , to provide a backup of electrical connection between the first terminals  111  and the light emitting device-side conductive lines  1311 . 
     Referring to  FIG.  2   , in some embodiments, at least one terminal  110  of the plurality of terminals  110  may cover at least one terminal-side conductive hole  120  of the plurality of terminal-side conductive holes  120 , for example, at least one terminal  110  of the plurality of terminals  110  may cover at least one terminal-side conductive hole  120 , with which the terminal  110  is electrically connected, of the plurality of terminal-side conductive holes  120 . 
     In some embodiments, at least one terminal  110  of the plurality of terminals  110  may cover part or all of at least one terminal-side conductive hole  120  of the plurality of terminal-side conductive holes  120 , for example, at least one terminal  110  of the plurality of terminals  110  may cover part or all of at least one terminal-side conductive hole  120 , with which the terminal  110  is electrically connected, of the plurality of terminal-side conductive holes  120 . Optionally, at least one terminal  110  of the plurality of terminals  110  may not cover at least one terminal-side conductive hole  120 , with which the terminal  110  is electrically connected, of the plurality of terminal-side conductive holes  120 . Optionally, whether the terminal  110  covers the terminal-side conductive hole  120  or whether the terminal  110  covers part or all of the terminal-side conductive hole  120  is insignificant, as long as an electrical connection between the terminals  110  and the terminal-side conductive holes  120  may be effectively realized, to effectively arrange a plurality of terminals  110  for leading wires from the light emitting devices  150 . 
     Referring to  FIG.  1 B , in some embodiments, part or all of terminals  110  of the plurality of terminals  110  may be arranged at equal intervals. Optionally, there may be a distance variation range between part or all of terminals  110  of the plurality of terminals  110 , so that positions of part or all of terminals  110  of the plurality of terminals  110  may be flexibly set according to the distance variation range; for example, part of terminals  110  in the plurality of terminals  110  may be arranged at equal intervals while other terminals  110  may be set at unequal intervals, or all of terminals  110  in the plurality of terminals  110  may be set at unequal intervals. 
     Referring to  FIG.  1 B , in some embodiments, part of the plurality of terminals  110  may be arranged in array. Optionally, all of the plurality of terminals  110  may be arranged in array. 
     As shown in  FIG.  1 B , no matter whether part or all of the plurality of terminals  110  are arranged in array, an array arrangement mode of the plurality of terminals  110  may be a matrix, such as a row-and-column mode. In some embodiments, the array arrangement mode of the plurality of terminals  110  may be different from that shown in  FIG.  1 B , but may be array arrangement modes in other array shapes, such as circular, elliptical, triangular and other array arrangement modes. Optionally, the array arrangement mode of the plurality of terminals  110  is insignificant, as long as the plurality of terminals  110  for leading wires from the light emitting devices  150  may be effectively arranged. 
     In some embodiments, shapes of part or all of terminals  110  in the plurality of terminals  110  may be same or different. Optionally, since thicknesses of the terminals  110  are usually very small, the shapes of the terminals  110  may refer to shapes of surfaces of the terminals  110 . Optionally, the shape of at least one terminal  110  of the plurality of terminals  110  may be rectangular, circular, spherical and other shapes; and other shapes such as polygonal and abnormal shapes may also be set according to actual conditions such as process requirements. 
     Referring to  FIG.  11   , embodiments of the present disclosure provide a display unit  200 , including a plurality of light emitting devices  150 , and the above mentioned terminal connection structure. 
     Referring to  FIG.  12   , in some embodiments, the plurality of light emitting devices  150  may include at least one Light Emitting Diode (LED) light emitting device  153 , for example, part or all of the plurality of light emitting devices  150  may be LED light emitting devices  153 . 
     Referring to  FIG.  13   , in some embodiments, at least one LED light emitting device  153  may include at least one Micro LED light emitting device  154 , for example, part or all of the plurality of light emitting devices  150  may be the Micro LED light emitting device  154 . Optionally, at least one LED light emitting device  153  may include at least one Mini LED light emitting device; for example, part or all of the plurality of light emitting devices  150  may be the Mini LED light emitting device. 
     Referring to  FIG.  14   , in some embodiments, a plurality of light emitting devices  150  may be arranged in array. 
     In some embodiments, part of the plurality of light emitting devices  150  may be arranged in array. Optionally, all of the plurality of light emitting devices  150  may be arranged in array. 
     As shown in  FIG.  14   , no matter whether part or all of the plurality of light emitting devices  150  are arranged in array, an array arrangement mode of the plurality of light emitting devices  150  may be a matrix, such as a row-and-column mode. In some embodiments, the array arrangement mode of the plurality of light emitting devices  150  may be different from that shown in  FIG.  14   , but may be array arrangement modes in other array shapes, such as circular, elliptical, triangular and other array arrangement modes. Optionally, the array arrangement mode of the plurality of light emitting devices  150  is insignificant, as long as the plurality of terminals  110  for leading wires from the light emitting devices  150  may be effectively arranged. 
     In some embodiments, shapes of part or all of light emitting devices  150  in the plurality of light emitting devices  150  may be same or different. Optionally, since thicknesses of the light emitting devices  150  are usually very small, the shapes of the light emitting devices  150  may refer to shapes of longitudinal projections of the light emitting devices  150 . Optionally, the shape of at least one light emitting device  150  of the plurality of light emitting devices  150  may be rectangular, circular, spherical and other shapes; and other shapes such as polygonal and abnormal shapes may also be set according to actual conditions such as process requirements. 
     In some embodiments, the display unit  200  may perform 3D display. 
     In some embodiments, different display units  200  may be spliced together. Optionally, a mode of splicing different display units  200  together and the number of spliced display units  200  may be considered according to actual conditions such as process requirements. Optionally, there is no lining frame between two spliced display units  200 . 
     Referring to  FIGS.  15 A and  15 B , embodiments of the present disclosure provide a display  300 , including the above mentioned display unit  200 . 
     In some embodiments, the display  300  may perform 3D display. 
     In some embodiments, the display  300  may include at least one display unit  200 ; for example, the display  300  may include one, two, three or more display units  200 . In the display  300  formed by the display units  200 , there is no lining frame between two spliced display units  200 . 
     As shown in  FIG.  15 B , part or all of the plurality of display units  200  arranged in the display  300  may be arranged in array. In some embodiments, an array arrangement mode of the plurality of display units  200  may be a matrix, such as a row-and-column mode. In some embodiments, the array arrangement mode of the plurality of display units  200  may be different from that shown in  FIG.  15 B , but may be arrangement modes in other array shapes, such as circular, elliptical, triangular and other array arrangement modes. 
     In some embodiments, different display units  200  arranged in the display  300  may be spliced together. Optionally, a mode of splicing different display units  200  together and the number of spliced display units  200  may be considered according to actual conditions such as process requirements. Optionally, there may be no lining frame between two spliced display units  200 . 
     By the terminal connection structure, the display unit and the display provided by embodiments of the present disclosure, terminals for leading wires from light emitting devices may be arranged effectively even if a size of the light emitting device is very small. 
     The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. The embodiments represent only possible changes. Unless expressly required, individual components and functions are optional and the order of operations may be changed. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The scope of the disclosed embodiments includes the full scope of the claims, and all available equivalents of the claims. When used in the present disclosure, although the terms of “first”, “second”, etc. may be possibly used in the present disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without changing the meaning of the description, a first element may be called as a second element, and similarly, the second element may be called as the first element, as long as all of “the first elements” that appear are consistently renamed and all of “the second elements” that appear are consistently renamed. The first element and the second element are both elements, but may not be the same element. Moreover, the terms used in the present disclosure are used to describe the embodiments only and not to limit the claims. As used in the illustration of the embodiments and the claims, unless clearly indicated in the context, the singular forms “a”, “an” and “the” are also intended to include the plural forms. Similarly, the term “and/or” as used in the present disclosure is meant to include any and all possible combinations of one or more of the associated listings. In addition, when used in the present disclosure, the term “include” and its variations “includes” and/or “including”, etc., refer to the presence of stated features, integers, steps, operations, elements, and/or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitations, an element limited by the phrase “comprises a . . . ” does not preclude the presence of additional identical elements in the process, method or device that includes the element. Herein, the difference of each embodiment from each other may be the focus of explanation. The same and similar parts among all of the embodiments may be referred to each other. For the method and product disclosed by the embodiments, if the method and product correspond to a method part disclosed by the embodiments, the description of the method part may be referred to for the related part. 
     Those skilled in the art may recognize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein may be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods for implementing the described functions for each particular application, but such implementations should not be considered beyond the scope of the embodiments of the present disclosure. Those skilled in the art may clearly understand that, for the convenience and brevity of description, the corresponding processes in the above method embodiments may be referred to for the specific working processes of the above systems, devices and units, which will not be repeated here. 
     In the embodiments disclosed herein, the disclosed method and product (including, but not limited to the apparatus and the device) may be realized in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units may be only a logical functional division, and may be an additional division manner in actual realization. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as the units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. The present embodiments may be implemented by selecting some or all of the units according to actual needs. In addition, each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.