Patent Publication Number: US-2021184091-A1

Title: Display module adjustment method of mobile device and light-emitting diode array driving system

Description:
CROSS-REFERENCE TO RELATED PATENT APPLICATION 
     This application claims the benefit of priority to Taiwan Patent Application No. 108145685, filed on Dec. 13, 2019. The entire content of the above identified application is incorporated herein by reference. 
     Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference. 
     FIELD OF THE DISCLOSURE 
     The present disclosure relates to a display module adjustment method of mobile device and a light-emitting diode array driving system, and more particularly to a low-cost display module adjustment method of the mobile device and a low-cost light-emitting diode array driving system. 
     BACKGROUND OF THE DISCLOSURE 
     If a display screen of an existing mobile device has dark spots or defects, a user needs to bring over the entire mobile device for maintenance. This way, maintenance time is longer and maintenance costs are higher. In addition, the implementation of light-emitting elements of the display screen is also a factor affecting the maintenance cost of the mobile device. 
     Therefore, providing a low-cost mobile device display module adjustment method and a light-emitting diode array driving system has become an important issue in the industry. 
     SUMMARY OF THE DISCLOSURE 
     In response to the above-referenced technical inadequacies, the present disclosure provides a light-emitting diode array driving system. The light-emitting diode array driving system includes a driving module and a light-emitting diode array. The driving module includes a plurality of driving units. The plurality of driving units are electrically connected to a plurality of signal driving lines. The light-emitting diode array includes a plurality of light-emitting diode modules. The plurality of light-emitting diode modules are arranged in a matrix. The light-emitting diode modules arranged in the same row or the light-emitting diode modules arranged in the same column are electrically connected to one of the signal driving lines. The driving units of the driving module respectively provide a driving signal to the plurality of signal driving lines. The light-emitting diode modules connected to the same signal driving line respectively extract, based on a sequence, at least one driving unit signal of the driving signal to drive the light-emitting diode module. 
     In one aspect, the present disclosure provides a display module adjustment method of a mobile device. The display module adjustment method of the mobile device includes: capturing a first image information of a display module of the mobile device; transmitting the first image information to a server; providing a display module adjustment scheme to the mobile device based on at least one area to be adjusted of the first image information; adjusting the display module based on the display module adjustment scheme, capturing a second image information, and transmitting the second image information to the sever; and confirming an adjustment result based on the second image information. 
     Therefore, the display module adjustment method provided in the present disclosure can effectively reduce the time and cost spent on mailing or bringing over the mobile device for maintenance. Furthermore, the light-emitting diode array driving system provided by the present disclosure can simplify the circuit structure and reduce the installation cost and maintenance cost. 
     These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be affected without departing from the spirit and scope of the novel concepts of the disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure will become more fully understood from the following detailed description and accompanying drawings. 
         FIG. 1  is a schematic diagram of a display module adjustment method of a first embodiment of the present disclosure. 
         FIG. 2  is a flow chart of the display module adjustment method of the first embodiment of the present disclosure. 
         FIG. 3  is a schematic diagram of a light-emitting diode array driving system of a second embodiment of the present disclosure. 
         FIG. 4  is a schematic diagram of a light-emitting diode module of the second embodiment of the present disclosure. 
         FIG. 5  is a schematic diagram of driving unit signals of the second embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS 
     The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a”, “an”, and “the” includes plural reference, and the meaning of “in” includes “in” and “on”. Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure. 
     The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first”, “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like. 
     First Embodiment 
     Referring to  FIG. 1  and  FIG. 2 ,  FIG. 1  is a schematic diagram of a display module adjustment method of a first embodiment of the present disclosure.  FIG. 2  is a flow chart of the display module adjustment method of the first embodiment of the present disclosure. 
     Referring to  FIG. 1 , a mobile device  1  in this embodiment can capture the image information of a display module  11  of the mobile device  1  and transmit the captured image information to a server  9 . In other words, when the display module  11  of the mobile device  1  has dark spots, light leakage, or other defects, a user can capture at least one image information of the display module  11  by a screen capture function of the mobile device  1 . The user then transmits at least one captured image information to the server  9  via a network. The server  9  may be a server implemented by a manufacturer of the mobile device  1  or a maintenance service provider. 
     After the user transmits the image information of the mobile device  1  to the server  9 , the server  9  transmits a maintenance message to a maintenance center  8 , such that a maintenance personnel can analyze the image information of the mobile device  1  and provide solutions. In this embodiment, the mobile device  1  is a smart phone, a tablet computer or a wearable electronic device, but it is not limited in the present disclosure. After confirming the issue and the adjustment scheme, the maintenance personnel of the maintenance center  8  can provide a display module adjustment scheme to the user through the server  9 . The user can adjust the mobile device  1  based on the display module adjustment scheme. 
     Referring to  FIG. 2 , the display module adjustment method includes steps as follows: 
     capturing a first image information of a display module of the mobile device (step S 110 ); 
     transmitting the first image information to a server (step S 120 ); 
     providing a display module adjustment scheme to the mobile device based on at least one area to be adjusted of the first image information (step S 130 ); 
     adjusting the display module based on the display module adjustment scheme, capturing a second image information, and transmitting the second image information to the sever (step S 140 ); and 
     confirming an adjustment result based on the second image information (step S 150 ). 
     In step S 110 , when the display module of the mobile device  1  has dark spots, light leakage, or other defects, the user can capture at least one image information of the display module  11  by a screen capture function of the mobile device  1 . The image information is the first image information of the display module  11 . In this embodiment, the first image information is a black screen image or a blank screen image. In other embodiments, the manufacturer can provide multiple image capturing modes for users to sequentially capture image information, such that the maintenance personnel of the maintenance center  8  can easily determine or confirm issues of the display module  11 . In this embodiment, the display module  11  is a liquid crystal display module, an organic light-emitting diode display module, or a light-emitting diode display module, but it is not limited in the present disclosure. 
     In step S 120 , the user transmits the first image information to the server  9  by the mobile device  1 . At the same time, the user can also provide information of a model number of the mobile device  1  and operating system specifications to the server  9 . The maintenance personnel of the maintenance center  8  can quickly provide an adjustment scheme, according to the information such as the model number of the mobile device  1  and operating system specifications. 
     In step S 130 , the maintenance personnel of the maintenance center  8  determines coordinates of the at least one area to be adjusted in the first image information based on the first image information transmitted to the server  9  by the user. In addition, the user also transmits information such as a model number and operating system specifications of the mobile device  1  to the server  9 , and the maintenance personnel of the maintenance center  8  can obtain the size, resolution, drivers and the coordinates of the display module  11  based on the model number of the mobile device  1 . After determining the coordinates of the area to be adjusted in the first image information, the maintenance personnel will provide a display module adjustment scheme based on the area to be adjusted. In other words, the maintenance personnel of the maintenance center will provide a display module adjustment scheme based on the coordinates of the display module  11  of the mobile device  1 , a location of the at least one area to be adjusted, and the content to be adjusted of the first image information. 
     After the display module adjustment scheme is determined, the maintenance personnel can upload the display module adjustment scheme to the server  9 , and the user can then access the display module adjustment scheme from the server  9 . In addition, the server  9  can directly provide the display module adjustment scheme to the user&#39;s mobile device  1 , but it is not limited in the present disclosure. In the embodiment, the display module adjustment scheme is a firmware or an adjustment parameter, but it is not limited in the present disclosure. 
     In step S 140  and step S 150 , after receiving the display module adjustment scheme, the user can adjust the display module  11  of the mobile device  1  based on the display module adjustment scheme. After the display module  11  of the mobile device  1  is adjusted based on the display module adjustment scheme, the user needs to capture a second image information of the display module  11  and transmit the second image information to the server  9 . The maintenance personnel of the maintenance center  8  can confirm an adjustment result based on the second image information uploaded by the user. If the previous issues of the first image information have been solved, the adjustment procedure can be ended. If the previous issues are still not solved, steps S 110  to S 150  must be repeated until the issues are solved. 
     Second Embodiment 
     Referring to  FIG. 3  and  FIG. 4 ,  FIG. 3  is a schematic diagram of a light-emitting diode array driving system of a second embodiment of the present disclosure.  FIG. 4  is a schematic diagram of a light-emitting diode module of the second embodiment of the present disclosure. 
     The light-emitting diode array driving system  1  of this embodiment includes a control module  10 , a driving module DX, and a light-emitting diode array LED 01 . The driving module DX includes a plurality of driving units D 1  to DN. The plurality of driving units D 1  to DN are electrically connected to a plurality of signal driving lines L 1  to LN, respectively. The light-emitting diode array LED 01  includes a plurality of light-emitting diode modules  11 - 14 ,  21 - 24 , and N 1 -N 4 . In the embodiment, the quantity of light-emitting diode modules is not limited. The control module  10  is electrically connected to the driving module DX, and provides a control signal having address information to the driving module. The control signal will include the address information of the row (address information of the driving unit) and a sequence of the light-emitting diode module. 
     The plurality of light-emitting diode modules  11 - 14 ,  21 - 24 , and N 1 -N 4  are arranged in a matrix. The plurality of light-emitting diode modules in the same row are electrically connected to one of the plurality of signal driving lines L 1  to LN. In other words, the plurality of light-emitting diode modules  11  to  14  arranged in the same row are electrically connected to a first signal driving line L 1 . The plurality of light-emitting diode modules  21  to  24  arranged in the same row are electrically connected to a second signal driving line L 2 . The plurality of light-emitting diode modules N 1  to N 4  arranged in the same row are electrically connected to an Nth signal driving line LN. 
     The plurality of driving units D 1  to DN of the driving module DX respectively provide a driving signal to the plurality of signal driving lines L 1  to LN. In other words, each of the driving unit provides the driving signal to the signal driving lines L 1  to LN connected thereto. The signal driving lines L  1 -LN transmit the driving signals to the plurality of light-emitting diode modules  11 - 14 ,  21 - 24 , and N 1 -N 4 . 
     Furthermore, each of the plurality of light-emitting diode modules  11 - 14 ,  21 - 24 , and N 1 -N 4  connected to the same signal driving line respectively extracts, based on a sequence, at least one driving unit signal in the driving signal to emit light. 
     Although the plurality of light-emitting diode modules  11 - 14 ,  21 - 24 , and N 1 -N 4  of the light-emitting diode array LED 01  in this embodiment are arranged in a matrix, the display module  11  lacks signal lines and scan lines that are commonly used. The signal line and scan line of the display module  11  are combined into one line. Moreover, the plurality of light-emitting diode modules  11 - 14 ,  21 - 24 , and N 1 -N 4  in the same row are electrically connected to the same signal driving line. The light-emitting diode modules  11 - 14 ,  21 - 24 , and N 1 -N 4  arranged in one row are not electrically connected to the light-emitting diode modules  11 - 14 ,  21 - 24 , and N 1 -N 4  arranged in another row. 
     Referring to  FIG. 4 , the first light-emitting diode module  11  and the second light-emitting diode module  12  connected to the first signal driving line L  1  are taken as an example. 
     The first light-emitting diode module  11  includes a first counter  111 , a first signal extractor  112 , and a first light-emitting diode unit  113 . 
     The first counter  111  is electrically connected to the first signal driving line L 1 . The first signal extractor  112  is electrically connected to the first counter  111 . The first light-emitting diode unit  113  is electrically connected to the first signal extractor  112 . The first signal extractor  112  includes a filter circuit and an amplifying circuit. 
     The second light-emitting diode module  12  includes a second counter  121 , a second signal extractor  122 , and a second light-emitting diode unit  123 . 
     The second counter  121  is electrically connected to the first signal driving line L 1 . The second signal extractor  122  is electrically connected to the second counter  121 . The second light-emitting diode unit  123  is electrically connected to the second signal extractor  122 . The second signal extractor  122  includes a filter circuit and an amplifying circuit. 
     Both of the first counter  111  and the second counter  121  are used to count a quantity of signals of the driving signals. The first signal extractor  112  and the second signal extractor  122  are respectively configured to extract a first driving unit signal S 1  corresponding to a sequence of the first light-emitting diode  113  or a second driving unit signal S 2  corresponding to a sequence of the second light-emitting diode unit  123 . After the first signal extractor  112  and the second signal extractor  122  respectively extract the first driving unit signal S 1  and the second driving unit signal S 2 , the first driving unit signal S 1  and the second driving unit signal S 2  are respectively provided to the first light-emitting diode unit  113  and the second light-emitting diode unit  123  such that the first light-emitting diode unit  113  and the second light-emitting diode unit  123  are drove to emit light. 
     The sequence of the light-emitting diode modules are firstly counted from a light-emitting diode module adjacent to the driving unit. The light-emitting diode module adjacent to the driving unit is a first light-emitting diode module, the light-emitting diode module adjacent to the first light-emitting diode module is a second light-emitting diode module, and the light-emitting diode module adjacent to the second light-emitting diode module is a third light-emitting diode module. 
     Referring to  FIG. 5 , the first light-emitting diode unit  113  and the second light-emitting diode unit  123  receive the first driving unit signal S 1  and the second driving unit signal S 2  from the signal driving line L  1 . In other words, when the quantity of light-emitting diode modules electrically connected to the signal driving line L 1  is a first quantity, the corresponding driving unit provides the first quantity of driving unit signals to the signal driving line L  1  within a unit time interval. The first quantity is a natural number, and the first quantity is greater than or equal to 1. The second driving unit signal S 2  of a second time interval T 2  and a third driving unit signal S 3  of a third time interval T 3  are signals for driving the second light-emitting diode unit  123  and the third diode unit (not shown in figures), respectively. 
     In  FIG. 5 , a frame time of each of the driving unit signals S 1 -S 3  is equal to the first time interval T 1 . In other words, the first time interval T 1  is equal to the second time interval T 2  and the third time interval T 3 . In addition, since there are four light-emitting diode modules arranged in each column of the light-emitting diode array LED 01 , the driving unit provides four driving unit signals every unit time. In other words, each unit time is quadruple of the first time interval T 1 . The quantity of light-emitting diode modules can be adjusted based on actual requirements, and the unit time of providing driving signal of the driving unit is also adjusted based on the quantity of light-emitting diode modules. 
     The light-emitting diode array driving system  1  of this embodiment is capable of being applied to the adjustment method of the previous embodiment, and being applied to a light-emitting diode display device or other backlight modules. 
     For example, the light-emitting diode array driving system  1  in this embodiment is arranged in a backlight module of a direct LED liquid crystal display device. The coordinate of the light-emitting diode array driving system  1  in this embodiment can take the driving unit as a first parameter of the coordinate system, and the light-emitting diode module is taken as a second parameter of the coordinate system. In other words, the first light-emitting diode module  11  of the embodiment is connected to the first driving unit D  1 . The maintenance personnel can take the driving unit as the first parameter (can be vertical or horizontal) of the coordinate system, and then take the light-emitting diode module as the second parameter (can be vertical or horizontal) of the coordinate system to make an accurate location description. 
     In conclusion, the display module adjustment method provided in the present disclosure can effectively reduce the time and cost spent on mailing or bringing over the mobile device for maintenance. Furthermore, the light-emitting diode array driving system provided by the present disclosure can simplify the circuit structure and reduce the installation cost and maintenance cost. 
     The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. 
     The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.