Patent Publication Number: US-2018048746-A1

Title: Display screen, mobile terminal and combined terminal device

Description:
FIELD OF THE INVENTION 
     The invention relates to a mobile terminal, and in particular, to a display screen for a mobile terminal, a mobile terminal having the display screen and a combined terminal device formed by combining a plurality of mobile terminals. 
     BACKGROUND OF THE INVENTION 
     In the prior art, the aspect ratio of the display screen of a mobile phone is generally locked to be 16:9 or 16:10. To be able to implement a one-hand touch operation on a display screen as much as possible, the area of the display screen at this point is generally very small, for example, the display screen is of 3.5 inches, which is far from meeting people&#39;s demand for large display area. However, when the display area of a display screen is arranged to be sufficiently large, for example, a display screen of 5.5 inches, at this point, due to the above mentioned limitation of the aspect ratio, the width of the display screen is too large, for which a one-hand operation can already not be performed generally. 
     Moreover, for a display screen designed according to the aforementioned aspect ratio, when it displays published documents mostly of the size of a sheet of A4 paper, black borders will generally be left at the periphery of the display screen, which not only affects the display effect, but also does not realize the maximum utilization of the display screen. 
     In addition, since the update and upgrade of mobile phones is very fast, the frequency at which a user of a mobile phone changes the mobile phone is also faster and faster. Discard of old mobile phones will cause serious waste of resources and environmental pollution. Nowadays, there are yet no good solutions on the market, and the approach of recycling mobile phones is generally adopted. Thus, not only will the cost of regeneration of worn-out mobile phones become high, but also secondary pollution in recycling and regeneration will result. 
     SUMMARY OF THE INVENTION 
     Upon recognizing the above described prior art, the inventor of this application occasionally realizes that by designing a specific aspect ratio of a display screen, the above mentioned several problems existing in the prior art which look irrelevant to each other may be solved in a unified way. 
     According to an aspect of the invention, there is provided a display screen for a mobile terminal, wherein the display screen is basically rectangular and arranged such that L:W≧2.5, wherein L is the length of the display screen and W is the width of the display screen. 
     Further, L:W=(205˜215):[(290˜304)/n], wherein n is a positive integer and n≧4. 
     Further, n≦6. 
     Further, n is 4 or 5. 
     Further, 150 mm≧W≧30 mm, and optionally, 90 mm≧W≧50 mm. 
     Further, L is 205˜215 mm. 
     Further, W is 58˜61 mm. Still further, W is 60 mm, and L is 210 mm. 
     Further, W is 72˜76 mm. Still further, W is 74 mm, and L is 210 mm. 
     The invention further provides a display screen for a mobile terminal, wherein the display screen is basically rectangular and arranged such that L:W=(205˜215):[(290˜304)/n], wherein L is the length of the display screen, W is the width of the display screen, and n is a positive integer and n≧2. 
     Further, n is 2 or 3. 
     Further, L is 205˜215 mm. 
     According to another aspect of the invention, there is provided a mobile terminal comprising a display screen as described in one of the above technical solutions, wherein in the width direction of the display screen, two oppositely arranged sides of the mobile terminal are arranged in a form of no bezel or a narrow bezel, wherein the width of the narrow bezel is less than 1 mm. 
     Further, in the length direction of the display screen, at least one of two oppositely arranged sides of the mobile terminal is arranged in the form of no bezel or a narrow bezel. 
     Further, the mobile terminal is a mobile phone. 
     According to still another aspect of the invention, there is provided a combined terminal device which is formed by splicing N identical mobile terminals according to one of the above technical solutions in the width direction of the display screen, and is such that the display screens of the N mobile terminals form a single rectangular screen as a whole. 
     Further, the value of N is the same as n. 
     At the same time, the invention provides another display screen for a mobile terminal, wherein the display screen is basically rectangular and at least one of its length or width is 205˜215 mm. 
     Meanwhile, the invention provides another combined terminal device which is formed by splicing a plurality of mobile terminals in a signal row, wherein a plurality of display screens corresponding to the plurality of mobile terminals are basically rectangular and have lengths or widths of the same size, such that the plurality of mobile terminals form a single rectangular screen as a whole after spliced along the lengths or widths of the same size, the lengths or widths of the same size are 205˜215 mm and are taken as the width of the single rectangular screen, and the length of the single rectangular screen is 290˜304 mm. 
     It can be seen from the above description of the technical solutions of the invention that, as compared to a display screen in the prior art of a display ratio of 16:9 or 16:10 (i.e., an aspect ratio of 1.78 or 1.6), the invention sets the aspect ratio of a display screen to be at least 2.5. Therefore, the display screen of the invention is more elongated in shape. Thus, with the same width, the display screen of the invention has a larger display area. Or, in other words, with the same display area, the display screen of the invention may have a smaller width to facilitate a one-hand operation by people. 
     Moreover, by significantly elongating a display screen as compared to the prior art, it may be surprisingly found that, while for such a display screen, it is easy for a user of a mobile phone to operate by one hand, a corresponding ratio of a sheet of A4 paper is easier to realize by a plurality of display screens in a single row splicing manner, though the invention is not limited to single row splicing. What&#39;s more, it may be conceived that when a certain user retains a plurality of mobile phones with such a display screen due to the update and upgrade of mobile phones, he may splice these mobile phones to form a combined terminal device. 
     It may be appreciated that when a mobile phone with a display screen according to the invention is eliminated by a user, it may be due to other causes unrelated to the display screen, for example, the CPU or lack of storage space. Yet, such a display screen with a specific aspect ratio proposed by the invention just provides a corresponding use value for an old mobile phone that is eliminated, because when a plurality of mobile phones including the old mobile phone are spliced into a combined terminal device, what is primarily made use of by it is the display function of the display screen of the old mobile phone, and other capabilities of the combined terminal device may be provided by a new mobile phone with better performances in the combined terminal device. 
     In particular, a primary function of a display screen is to provide document reading for a user, and when a suitable number of mobile terminals are spliced, such that the display screen of a combined terminal device is substantially of the ratio of a sheet of A4 paper, the problem of black borders appearing when displaying a published document with the A4 ratio may be substantially eliminated. This is convenient for a user to read a document with the A4 ratio on the spliced display screens, and is more significant for promotion of the use value of an old mobile phone. 
     The above and other objectives, advantages and features of the invention may be more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in connection with the drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In the following, some specific embodiments of the invention will be described in detail with reference to the drawings in an exemplary and non-limiting manner. In the drawings, like reference signs denote like or similar components or parts. It shall be appreciated by those skilled in the art that these drawings are not necessarily drawn to scale. In the drawings: 
         FIG. 1  is a schematic diagram of a combined terminal device according to an embodiment of the invention, wherein the number of mobile terminals is 2, and two sides of the mobile terminals have no bezel, and both of the mobile terminals are tablets; 
         FIG. 2  is a schematic diagram of a combined terminal device according to an embodiment of the invention, wherein the number of mobile terminals is 3, and two sides of the mobile terminals have no bezel, and the mobile terminals are all mobile phones; 
         FIG. 3  is a schematic diagram of a combined terminal device according to an embodiment of the invention, wherein the number of mobile terminals is 3, and two sides of the mobile terminals have no bezel, and the combined terminal device is composed of two tablets and one mobile phone; 
         FIG. 4  is a schematic diagram of a combined terminal device according to an embodiment of the invention, wherein the number of mobile terminals is 2, and two sides of the mobile terminals have no bezel, and the combined terminal device is composed of one tablet and one mobile phone; 
         FIG. 5  is a schematic diagram of a combined terminal device according to an embodiment of the invention, wherein the number of mobile terminals is 5, and two sides of the mobile terminals have no bezel; 
         FIG. 6  is a schematic diagram of a combined terminal device according to another embodiment of the invention, wherein the number of mobile terminals is 4, and two sides of the mobile terminals have no bezel; 
         FIG. 7  is a schematic diagram of a combined terminal device according to still another embodiment of the invention, wherein the number of mobile terminals is 4, and three sides of the mobile terminals have no bezel; 
         FIG. 8  is a schematic diagram of a mobile terminal in  FIG. 6 , wherein two sides of the mobile terminal have no bezel; and 
         FIG. 9  is a schematic diagram of a mobile terminal in  FIG. 7 , wherein three sides of the mobile terminal have no bezel. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     As shown in  FIG. 5 , a combined terminal device  30  provided by the invention is formed by splicing five mobile terminals  20  along the width direction of a display screen  10 , and when splicing, the individual mobile terminals  20  are aligned, such that the length L of the display screen  10  acts as the width W′ of the combined terminal device. In  FIG. 5 , the mobile terminals  20  are mobile phones, and in other embodiments, the mobile terminals  20  may also be tablets. 
       FIG. 6  is a schematic diagram of a combined terminal device according to another embodiment of the invention. The combined terminal device  30  in  FIG. 6  is formed by splicing four mobile terminals  20 . The two long sides of the mobile terminals  20  in  FIG. 6  are of a no bezel design. 
       FIG. 7  is a schematic diagram of a combined terminal device according to still another embodiment of the invention. The combined terminal device  30  in  FIG. 7  is also formed by splicing four mobile terminals  20 . The two long sides and one short side of the mobile terminals  20  in  FIG. 7  are of a no bezel design. 
     In  FIGS. 5, 6 and 7 , the lengths L′ and the widths W′ of the combined terminal devices are all 297 mm and 210 mm, respectively. That is, the width W of a mobile terminal  20  in  FIG. 5  is 59.4 mm, the length L is 210 mm, and L:W=3.5; the width W of a mobile terminal  20  in  FIG. 6  is 74.25 mm, the length L is 210 mm, and L:W=2.8; and the width W of a mobile terminal  20  in  FIG. 7  is also 74.25 mm, the length L is also 210 mm, and L:W=2.8. When a published document is displayed by the combined terminal devices in  FIGS. 5-7 , not only can it be displayed without black borders on a full screen, but also the size of the font is exactly the same as that of the publication paper font at this point. 
     The combined terminal devices in  FIGS. 5-7  may also be formed by using mobile terminals of a narrow bezel and splicing them along the width direction of the display screen. For example, here, a bezel may be defined as a narrow bezel, of which the width is less than 1 mm, and of course, the width of the bezel may further be defined as needed. According to the concept of the invention, the invention preferably uses mobile terminals  20  as shown in  FIG. 5  and  FIG. 6  in which two sides in the width direction of the display screen are designed with no bezel, which at this point can cause substantially no influence on reading at splicing positions of individual mobile terminals  20 . However, with the increase of the widths of two sides in the width direction of the display screens, adverse influence on reading will be generated gradually. 
       FIG. 8  is a schematic diagram of a mobile terminal in  FIG. 6 . The mobile terminal  20  as shown in  FIG. 8  has a display screen  10 , and in the width direction of the display screen, two oppositely arranged sides of the mobile terminal  20  are arranged in a form of no bezel. In  FIG. 8 , the x direction is the length direction of the display screen, and the y direction is the width direction of the display screen. 
       FIG. 9  is a schematic diagram of a mobile terminal in  FIG. 7 . The mobile terminal  20  as shown in  FIG. 9  has a display screen  10 , and in the width direction of the display screen, two oppositely arranged sides (long sides) and the upper width side (short side) of the mobile terminal  20  are arranged in a form of no bezel. At this point, the originally arranged camera, microphone, light sensor located on the upper width side (short side) may be designed into other positions of the mobile terminal  20  as needed, for example, into the back or an area where the lower width side (short side) intersects the screen. Of course, in other embodiments, the lower width side (short side) may further be arranged in a form of no bezel, and at this point, the originally arranged camera, microphone, light sensor located on the upper width side (short side) remain intact. 
     In the following, a display screen  10  of a mobile terminal  20  of this application will be described in particular. 
     The display screen  10  is used on a mobile terminal  20 . It can be seen from  FIGS. 5-9  that the display screen  10  is basically rectangular and arranged such that L:W≧2.5, wherein L is the length of the display screen and W is the width of the display screen. Therefore, the display screen  10  of the invention is more elongated in shape. Thus, with the same width, the display screen  10  of the invention has a larger display area. Or, in other words, with the same display area, the display screen  10  of the invention may have a smaller width to facilitate a one-hand operation by people. Moreover, while it is easy for a user of a mobile phone to operate by one hand, a corresponding ratio of a sheet of A4 paper is easier to realize by a plurality of display screens in a single row splicing manner. 
     According to an embodiment of the invention, the aspect ratio of the rectangular display screen may be restricted to 
         L:W =(205˜215):[(290˜304)/ n],   (1)
 
     wherein n is a positive integer and n≧2. By such an arrangement, when a combined terminal device  30  is formed by splicing n mobile terminals  20 , the aspect ratio of the combined terminal device  30  is (290˜304)/(205˜215), that is to say, the aspect ratio of the display area of the combined terminal device  30  formed by splicing mobile terminals  20  is substantially equal to 297:210, such that the display screen  10  can display a published document without black borders on a full screen regardless of the size of the font. 
     In a preferred embodiment of the invention, n is set to be less than or equal to 6. And when n takes a value of 4 or 5, not only can the display screen  10  be made to have a relatively large display area, but also the display screen  10  is not made to be too elongated so as to affect the use of the mobile terminal  20 . 
     In a preferred embodiment of the invention, W is 58˜61 mm, and L is 205˜215 mm, and especially when W is 60 mm and L is 210 mm, five mobile terminals  20  may constitute a combined terminal device  30 , of which the aspect ratio is substantially 297:210. When W is 72˜76 mm and L is 205˜215 mm, especially when W is 74 mm and L is 210 mm, four mobile terminals  20  may constitute a combined terminal device  30 , of which the aspect ratio is substantially 297:210. 
     While having a relatively large display area, the display screen  10  and the mobile terminal  20  according to the invention is further particularly suitable for one-hand operations. And for a combined terminal device  30  formed by splicing a plurality of the mobile terminals  20 , its aspect ratio is substantially equal to 297:210, and thereby it can display a published document without black borders on a full screen. 
     It needs to be understood that the restriction condition for the aspect ratio of the display screen of a mobile terminal described above in the formula (1) may not be limited to a relatively elongated display screen (e.g., a display screen of which the aspect ratio is not less than 2.5), but may act as an independent restriction condition. For example, for the formula (1), n therein may take a value of 2 or 3, as shown in  FIGS. 1-2 . At this point, the aspect ratio is roughly 1.41 and 2.12, respectively. Although at this point a single display screen does not look so elongated, it is still in favor of being spliced into a display screen of the ratio of a sheet of A4 paper. Especially, when two or three such display screens are used to be spliced into a display screen of a size substantially the same as the actual size of a sheet of A4 paper, the length L of the display screen may be 205˜215 mm. 
     Further, it needs to be understood that, purely for the convenience of being spliced into a display screen of a size substantially the same as the actual size of a sheet of A4 paper, the display screens of the mobile terminals may be rectangular, and the lengths or widths thereof are 205˜215 mm. When a combined terminal device  30  is formed by splicing a plurality of mobile terminals in a single row, the lengths or widths of these mobile terminals have the same size and take a value between 205˜215 mm. Thus, when these mobile terminals are aligned and spliced along the lengths or widths of the same size, the formed single rectangular screen has a width of 205˜215 mm on the whole. The length of the single rectangular screen formed by splicing may be 290˜304 mm, which may be achieved by selecting the number of mobile terminals that participate in splicing, or by selecting the length of another side of the mobile terminal of a different size. Typically, the combined terminal device  30  may be formed by combining a mobile phone and a tablet as in  FIG. 4 , or formed by combining a mobile phone and two tablets as in  FIG. 3 . 
     So far, it shall be recognized by those skilled in the art that although multiple exemplary embodiments of the invention have already been illustrated and described in detail in this context, many other variations or modifications in line with the principles of the invention may still be directly determined or deduced according to the content disclosed in the invention, without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be understood and deemed to cover all the other variations or modifications.