Patent Publication Number: US-2023156940-A1

Title: Display device

Description:
FIELD OF INVENTION 
     The present invention relates to the field of display technologies, and more particularly to a display device. 
     BACKGROUND OF INVENTION 
     With the development of mobile terminals, mobile terminals with large screens are more and more popular. 
     However, as the screen of the mobile terminal becomes larger, its portability also decreases. Therefore, it is necessary to provide a portable display device with a large screen. 
     SUMMARY OF INVENTION 
     An object of the present invention is to provide a display device which can improve portability of the display device. 
     An embodiment of the present invention provides a display device comprising a rear shell. The rear shell comprises a first rear shell; a second rear shell; a third rear shell, wherein two ends of the third rear shell are respectively rotatably connected to the first rear shell and the second rear shell; a support plate comprising a first support plate, wherein the first support plate is disposed on the first rear shell, an end of the first support plate is rotatably connected to the third rear shell, and another end of the first support plate is slidingly connected to the first rear shell; a second support plate, wherein the second support plate is disposed on the second rear shell, an end of the second support plate is rotatably connected to the third rear shell, and another end of the second support plate is slidingly connected to the second rear shell. When the first rear shell, the second rear shell, and the third rear shell are on a same horizontal plane, the first rear shell and the second rear shell completely house the third rear shell. A corner of a first side of the first rear shell close to the second rear shell is rounded, and a corner of a second side of the second rear shell close to the first rear shell is rounded. 
     In an embodiment of the present invention, the display device further comprises a plurality of rotating shafts. The first rear shell comprises a first bottom surface and two first side surfaces respectively connected to the first bottom surface, the two first side surfaces are oppositely arranged, and each of the first side surfaces is provided with a first through hole. The second rear shell comprises a second bottom surface and two second side surfaces respectively connected to the second bottom surface, the two second side surfaces are oppositely arranged, and each of the second side surfaces is provided with a second through hole. The third rear shell comprises a third bottom surface and two third side surfaces respectively connected to the third bottom surface, the two third side surfaces are oppositely arranged, an end of each of the third side surfaces is provided with a third through hole, another end of each of the third sides is provided with a fourth through hole. The first through hole and the third through hole are fixed together by a corresponding rotating shaft, and the second through hole and the fourth through hole are fixed together by a corresponding rotating shaft. 
     In an embodiment of the present invention, each first side of the first rear shell is provided with a first chute, each second side of the second rear shell is provided with a second chute, each of two sides of the first support plate is provided with a first slider, and the first slider is inserted in a corresponding first chute, so that an end of the first support plate is slidingly connected to the first rear shell, each of two sides of the second support plate is provided with a second slider, and the second slider is inserted in a corresponding second chute, so that an end of the second support plate is slidingly connected to the second rear shell. 
     In an embodiment of the present invention, the first chute and the second chute are both linear chutes, or the first chute and the second chute are both arc-shaped chutes. 
     In an embodiment of the present invention, each third side of the third rear shell is provided with a first rotating shaft groove and a second rotating shaft groove, each of two sides of the first support plate is provided with a first rotating shaft, and the first rotating shaft is inserted into a corresponding first rotating shaft groove, so that an end of the first support plate is rotatably connected to the third rear shell, each of two sides of the second support plate is provided with a second rotating shaft, and the second rotating shaft is inserted into a corresponding second rotating shaft groove, so that an end of the second support plate is rotatably connected to the third rear shell. 
     In an embodiment of the present invention, the display device further comprises a display screen. The display screen is disposed on a side of the support plate away from the rear shell, the display screen comprises a bending area and a non-bending area, the display screen located in the bending area is disposed opposite to the support plate and is not fixed with the support plate. 
     In an embodiment of the present invention, after the display screen is bent, the display screen in the bending area is in a shape of a water drop. 
     In an embodiment of the present invention, material of the support plate comprises one or more of aluminum alloy, iron-nickel alloy, stainless steel, and amorphous material. 
     An embodiment of the present invention further provides a display device comprising a rear shell. The rear shell comprises a first rear shell; a second rear shell; a third rear shell, wherein two ends of the third rear shell are respectively rotatably connected to the first rear shell and the second rear shell; a support plate comprising a first support plate, wherein the first support plate is disposed on the first rear shell, an end of the first support plate is rotatably connected to the third rear shell, and another end of the first support plate is slidingly connected to the first rear shell; a second support plate, wherein the second support plate is disposed on the second rear shell, an end of the second support plate is rotatably connected to the third rear shell, and another end of the second support plate is slidingly connected to the second rear shell. 
     In an embodiment of the present invention, the display device further comprises a plurality of rotating shafts. The first rear shell comprises a first bottom surface and two first side surfaces respectively connected to the first bottom surface, the two first side surfaces are oppositely arranged, and each of the first side surfaces is provided with a first through hole. The second rear shell comprises a second bottom surface and two second side surfaces respectively connected to the second bottom surface, the two second side surfaces are oppositely arranged, and each of the second side surfaces is provided with a second through hole. The third rear shell comprises a third bottom surface and two third side surfaces respectively connected to the third bottom surface, the two third side surfaces are oppositely arranged, an end of each of the third side surfaces is provided with a third through hole, another end of each of the third sides is provided with a fourth through hole. The first through hole and the third through hole are fixed together by a corresponding rotating shaft, and the second through hole and the fourth through hole are fixed together by a corresponding rotating shaft. 
     In an embodiment of the present invention, each first side of the first rear shell is provided with a first chute, each second side of the second rear shell is provided with a second chute, each of two sides of the first support plate is provided with a first slider, and the first slider is inserted in a corresponding first chute, so that an end of the first support plate is slidingly connected to the first rear shell, each of two sides of the second support plate is provided with a second slider, and the second slider is inserted in a corresponding second chute, so that an end of the second support plate is slidingly connected to the second rear shell. 
     In an embodiment of the present invention, the first chute and the second chute are both linear chutes, or the first chute and the second chute are both arc-shaped chutes. 
     In an embodiment of the present invention, each third side of the third rear shell is provided with a first rotating shaft groove and a second rotating shaft groove, each of two sides of the first support plate is provided with a first rotating shaft, and the first rotating shaft is inserted into a corresponding first rotating shaft groove, so that an end of the first support plate is rotatably connected to the third rear shell, each of two sides of the second support plate is provided with a second rotating shaft, and the second rotating shaft is inserted into a corresponding second rotating shaft groove, so that an end of the second support plate is rotatably connected to the third rear shell. 
     In an embodiment of the present invention, when the first rear shell, the second rear shell, and the third rear shell are on a same horizontal plane, the first rear shell and the second rear shell completely house the third rear shell. 
     In an embodiment of the present invention, a corner of a first side of the first rear shell close to the second rear shell is rounded, and a corner of a second side of the second rear shell close to the first rear shell is rounded. 
     In an embodiment of the present invention, the display device, further comprises a display screen. The display screen is disposed on a side of the support plate away from the rear shell, the display screen comprises a bending area and a non-bending area, the display screen located in the bending area is disposed opposite to the support plate and is not fixed with the support plate. 
     In an embodiment of the present invention, after the display screen is bent, the display screen in the bending area is in a shape of a water drop. 
     In an embodiment of the present invention, material of the support plate comprises one or more of aluminum alloy, iron-nickel alloy, stainless steel, and amorphous material. 
     Beneficial effect: 
     In the display device of embodiments of the present invention, the support plate is rotatably connected to the third rear shell, and the support plate is slidingly connected to the first rear shell and the second rear shell respectively. This allows the display device to form a folded structure, which improves portability of the display device. 
    
    
     
       DESCRIPTION OF DRAWINGS 
       In order to make the above contents of the present invention more obvious and understandable, the preferred embodiments are described in detail below, and in conjunction with the attached drawings, detailed descriptions are as follows: 
         FIG.  1    is a first schematic structural diagram of a display device provided by an embodiment of the present invention. 
         FIG.  2    is a second schematic structural diagram of a display device provided by an embodiment of the present invention. 
         FIG.  3    is a third schematic structural diagram of a display device provided by an embodiment of the present invention. 
         FIG.  4    is a fourth schematic structural diagram of a display device provided by an embodiment of the present invention. 
         FIG.  5    is a fifth schematic structural diagram of a display device provided by an embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments of the present invention that can be implemented. Directional terms mentioned in the present invention, such as “up”, “down”, “front”, “rear”, “left”, “right”, “inner”, “outer”, “side”, etc., just refer to the directions of the attached drawings. Therefore, the directional terminology is used to illustrate and understand the present invention, not to limit the present invention. 
     In the figure, units with similar structures are indicated by the same reference numerals. 
     Reference herein to “embodiments” means that specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art understand explicitly and implicitly that the embodiments described herein can be combined with other embodiments. 
     An embodiment of the present invention provides a display device. As shown in  FIG.  1   ,  FIG.  1    is a schematic structural diagram of a display device provided by an embodiment of the present invention. The display device  1  includes a rear shell  2  and a support plate  3 . 
     The rear shell  2  includes a first rear shell  21 , a second rear shell  22 , and a third rear shell  23 . Two ends of the third rear shell  23  are rotatably connected to the first rear shell  21  and the second rear shell  22 , respectively. 
     As shown in  FIG.  1   , the first rear shell  21  includes a first bottom surface  211  and two first side surfaces  212  and  213  respectively connected to the first bottom surface  211 . In an embodiment, the first rear shell  2  further includes a side surface  214 . The first side surface  212  and the first side surface  213  are oppositely arranged. The side surface  214  connects not only the first side surface  212  and the first side surface  213  but also the first bottom surface  211 . The side surface  214 , the first side surface  212 , and the first side surface  213  form a three-sided surrounding structure of the first rear shell  21 . The first side surfaces  212  and  213  are each provided with a first chute  215 . The first chute  215  may be a linear chute or an arc-shaped chute, which is specifically set according to a folding angle of the display device  1 . It should be noted that the first chute  215  can be replaced with a sliding rail or similar sliding mechanism. The first side surfaces  212  and  213  are each provided with a first through hole  216 . 
     As shown in  FIG.  1   , the second rear shell  22  includes a second bottom surface  221  and two second side surfaces  222  and  223  respectively connected to the first bottom surface  221 . In an embodiment, the second rear shell  22  further includes a side surface  224 . The second side surfaces  222  and  223  are oppositely arranged. The side surface  224  is not only connected to the second side surfaces  222  and  223  but also connected to the second bottom surface  221 . A second chute  225  is also provided on the second side surfaces  222  and  223  respectively. The second chute  225  may be a linear chute or an arc-shaped chute, which is specifically set according to a folding angle of the display device  1 . In order to allow the first rear shell  21  and the second rear shell  22  to rotate at an equal angle, the first chute  215  and the second chute  225  may be provided as chutes of the same shape. It should be noted that the second chute  225  can be replaced by a sliding mechanism such as a sliding rail. The second side surfaces  222  and  223  are each provided with a second through hole  226 . 
     The third rear shell  23  includes a third bottom surface  231  and third side surfaces  232  and  233  connected to the third bottom surface  231  respectively. The third side surfaces  232  and  233  are oppositely arranged. Each of the third side surfaces  232  and  233  is provided with a first rotating shaft groove  234  and a second rotating shaft groove  235 . The third side surface  232  and the side surface  233  are each provided with a third through hole  236  and a fourth through hole  237 . The third through hole  236  and the first through hole  216  are dimensionally matched. The fourth through hole  237  and the second through hole  226  are dimensionally matched. 
     In an embodiment, the display device  1  further includes a plurality of rotating shafts. The first through hole  216  and a corresponding third through hole  236  are fixed together by a corresponding rotating shaft. The second through hole  226  and a corresponding fourth through hole  237  are fixed together by a corresponding rotating shaft. 
     When the first rear shell  21 , the second rear shell  22 , and the third rear shell  23  are at a same horizontal plane, the first rear shell  21  and the second rear shell  22  completely house the third rear shell  23 . 
     As shown in  FIG.  2   , a corner a of the first side surfaces  212  and  213  of the first rear shell  21  close to the second rear shell  22  is rounded. A corner b of the second side surfaces  222  and  223  of the second rear shell  22  close to the first rear shell  21  is rounded. This arrangement can prevent the first rear shell  21  and the second rear shell  22  from coming into contact with each other. 
     The support plate  3  plays a supporting role, and its constituent materials may use one or more of the following materials with high hardness and light weight: aluminum alloy, iron-nickel alloy, stainless steel, and amorphous material. 
     As shown in  FIG.  1    to  FIG.  3   , the support plate  3  includes a first support plate  31  and a second support plate  32 . The first support plate  31  is provided on the first rear shell  21 . An end of the first support plate  31  is rotatably connected to the third rear shell  23 , and another end of the first support plate  31  is slidingly connected to the first rear shell  21 . 
     Referring to  FIG.  1    and  FIG.  2   , a first slider  311  is provided on each side of the first support plate  31 . The first slider  31  is inserted into a corresponding first chute  215 , so that an end of the first support plate  31  is slidingly connected to the first rear shell  21 . A first rotating shaft  312  is provided on each side of the first support plate  31 . The first rotating shaft  312  is inserted into a corresponding first rotating shaft groove  234  so that an end of the first support plate  31  is rotatably connected to the third rear shell  23 . 
     A second slider  321  is provided on each side of the second support plate  32 . The second slider  321  is inserted into a corresponding second chute  225 , so that an end of the second support plate  32  is slidingly connected to the second rear shell  22 . A second rotating shaft  322  is provided on each side of the second support plate  32 . The second rotating shaft  322  is inserted into a corresponding second rotating shaft groove  235  so that an end of the second support plate  32  is rotatably connected to the third rear shell  23 . 
     In an embodiment, as shown in  FIG.  4    and  FIG.  5   , the display device  1  further includes a display screen  4 . The display screen  4  is disposed on a side of the support plate  3  away from the rear shell  2 . The display screen  4  includes a bending area and a non-bending area. The display screen located in the bending area is opposite to the support plate  3  and is not fixed with the support plate  3 . 
     A process of the rear shell  2 , the support plate  3 , and the display screen  4  cooperating with each other during a bending process of the display device  1  will be described in detail below. 
     As shown in  FIG.  3    and  FIG.  5   , the display device  1  is in a flat state, and at this time, the support plate  3  can be used to support the display screen  4  provided thereon. The first slider  311  is at the top of the first chute  215 , and the second slider  321  is at the top of the second chute  225 . 
     The first rear shell  21  and the second rear shell  22  completely house the third rear shell  23 , so that there is only one gap on the back of the display device  1 , and only the gap can be treated to prevent invasion of water and oxygen. 
     As shown in  FIG.  2   , the display device  1  is in a folded state. During a folding process from  FIGS.  3 - 5    to  FIG.  2   , the rotating shaft inserted through the first through hole  216  and the third through hole  236  drives the first rear shell  21  to rotate toward the second rear shell  22 . The rotating shaft inserted through the second through hole  226  and the fourth through hole  237  drives the second rear shell  22  to rotate toward  21 . That is, the first rear shell  21  and the second rear shell  22  are close to each other. 
     The first slider  311  slides along the top of the first chute  215  to the bottom. The first rotating shaft  312  inserted in the first rotating shaft groove  234  rotates. The first slider  311  and the first rotating shaft  312  cooperate with each other to slide the first support plate  31  to the outside. Similarly, the second slider  321  slides along the top of the second chute  225  toward the bottom. The second rotating shaft  322  inserted in the second rotating shaft groove  235  rotates. The second slider  321  and the second rotating shaft  322  cooperate with each other, so that the second support plate  32  also slides outward. As shown in  FIG.  2   , an accommodating space with an upward opening larger than a downward opening is formed between the first support plate  31  and the second support plate  32 . The above-mentioned accommodating space is large enough, so that the display screen  4  in the bending area can form a water drop shape, and the display screen  4  is prevented from being damaged during the bending process. 
     In the display device of embodiments of the present invention, the support plate is rotatably connected to the third rear shell, and the support plate is slidingly connected to the first rear shell and the second rear shell respectively. This allows the display device to form a folded structure, which improves portability of the display device. Further, during the bending process, the first support plate and the second support plate move outward, which can give the display screen enough bending space and improve a bending performance of the display screen. 
     In summary, although the present invention has been disclosed as the preferred embodiments above, the above preferred embodiments are not intended to limit the present invention. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is subject to the scope defined by the claims.