Abstract:
An electrically conductive structure comprising: a plurality of first electrically conductive lines; a plurality of second electrically conductive lines, crossed with the first electrically conductive lines, wherein at least one of the second electrically conductive line further comprises a second protruding part protruding from the second electrically conductive lines; and a first peripheral electrically conductive region, overlapped with a part of at least one of the first electrically conductive line, and comprises a first containing region configured to contain the second protruding part. A display apparatus and a capacitance touch control apparatus applying the electrically conductive structure are also disclosed.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to an electrically conductive structure, a display apparatus, and a capacitive touch control apparatus, and particularly relates to an electrically conductive structure, a display apparatus, and a capacitive touch control apparatus which can increase sensitivity for edge capacitance variation. 
         [0003]    2. Description of the Prior Art 
         [0004]    In a prior art capacitance touch control apparatus, a capacitance sensor always comprises driving lines and sensing lines. As illustrated in  FIG. 1 , these lines comprise electrically conductive materials, thus capacitance exists there between. The capacitance touch control apparatus determines if any object such as a finger touches a touch control screen of the capacitance touch control apparatus according to a capacitance value for such capacitance. 
         [0005]    The capacitance sensor may comprise various kinds of structures, for example, SITO (Single ITO), DITO (double ITO) and OGS (one glass solution). In the SITO and OGS structure, the driving lines and the sensing lines SL are provided in the same layer. Accordingly, an insulation layer is needed such that the two kinds of lines are not electrically conductive with each other. In the DITO structure, the driving lines and the sensing lines SL are provided in different layers. 
         [0006]    However, in the edge of the touch control screen, it is possibly that only the driving lines or the sensing lines exist due to the arrangement for these lines. Accordingly, in the edge region of the touch control screen, the touch control function cannot be performed according to the capacitance variation. 
       SUMMARY OF THE INVENTION 
       [0007]    One objective of the present invention is to provide an electrically conductive structure, which can provide sufficient capacitance variation even at an edge region. 
         [0008]    Another objective of the present invention is to provide a display apparatus, which can provide sufficient capacitance variation even at an edge region. 
         [0009]    Another objective of the present invention is to provide a capacitance touch control apparatus, which can provide sufficient capacitance variation even at an edge region. 
         [0010]    One embodiment of the present invention discloses an electrically conductive structure comprising: a plurality of first electrically conductive lines; a plurality of second electrically conductive lines, crossed with the first electrically conductive lines, wherein at least one of the second electrically conductive line further comprises a second protruding part protruding from the second electrically conductive lines; and a first peripheral electrically conductive region, overlapped with a part for at least one of the first electrically conductive line, and comprises a first containing region configured to contain the second protruding part. 
         [0011]    Another embodiment of the present invention discloses a display apparatus comprising: a display layer; a plurality of first electrically conductive lines, provided on the display layer; a plurality of second electrically conductive lines, provided on the display layer and crossed with the first electrically conductive lines, wherein at least one the second electrically conductive lines further comprises a second protruding part protruding from the second electrically conductive lines; and a first peripheral electrically conductive region, overlapped with a part for at least one of the first electrically conductive line, and comprises a first containing region configured to contain the second protruding part. 
         [0012]    Another embodiment of the present invention discloses a capacitance touch control apparatus, comprising: a sensing surface; a plurality of first electrically conductive lines, provided below the sensing surface; a plurality of second electrically conductive lines, provided below the sensing surface and crossed with the first electrically conductive lines, wherein at least one of the second electrically conductive line further comprises a second protruding part protruding from the second electrically conductive lines; a first peripheral electrically conductive region, overlapped with a part for at least one of the first electrically conductive line, and comprises a first containing region configured to contain the second protruding part; a processor, configured to determine if any object touches the sensing surface, according to at least one capacitance value between the first electrically conductive lines and the second electrically conductive lines, and according to at least one capacitance value between the second protruding part and the first peripheral electrically conductive region. 
         [0013]    Based upon above-mentioned embodiments, the electrically conductive structure provided by the present invention can provide sufficient capacitance value variation even at an edge region, thus the conventional issue can be solved. 
         [0014]    These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0015]      FIG. 1  is a schematic diagram illustrating driving lines and sensing lines in a prior art capacitance touch control apparatus. 
           [0016]      FIG. 2 ,  FIG. 3  are schematic diagrams illustrating an electrically conductive structure according to embodiments of the present invention. 
           [0017]      FIG. 4  is a schematic diagram illustrating an electrically conductive structure according to another embodiment of the present invention. 
           [0018]      FIG. 5  is a schematic diagram illustrating arrangement for first electrically conductive lines and second electrically conductive lines according to another embodiment of the present invention. 
           [0019]      FIG. 6  is a schematic diagram illustrating a display apparatus and a capacitive touch control apparatus according to one embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0020]      FIG. 2 ,  FIG. 3  are schematic diagrams illustrating an electrically conductive structure according to embodiments of the present invention.  FIG. 2  is an example without any peripheral electrically conductive region, and  FIG. 3  is an example with at least one peripheral electrically conductive region. In the following embodiments, two kinds of electrically conductive lines are provided on the same layer (a single layer) , but not limited. 
         [0021]    As illustrated in  FIG. 2 , the first electrically conductive lines CL 1  (ex. above-mentioned driving lines) respectively comprises a plurality of first electrically conductive blocks CBI and a first edge electrically conductive block ECB 1 . In one embodiment, the first electrically conductive blocks CB 1  are rhombus-shaped, and the first edge electrically conductive block ECB 1  comprises a triangular electrically conductive block TB 1  and an extension block EB 1 . Please note, the first electrically conductive blocks CBI and the first edge electrically conductive blocks ECB 1  can be other shapes. For example, the first electrically conductive blocks CB 1  are elliptic-shaped and the first edge electrically conductive block ECB 1  comprises a half-elliptic electrically conductive block TB 1  and an extension block EB 1 . Such variation should fall in the scope of the present invention. The second electrically conductive line CL 2  (ex. above-mentioned sensing lines) further comprises a second protruding part PP 2 , which extends from the second electrically conductive line CL 2  and surrounds the extension block EB 1  of the first edge electrically conductive block ECB 1 . In one embodiment, the second protruding part PP 2  comprises at least one right angle (or T shape illustrated in  FIG. 2 ), thereby the second protruding part PP 2  can surround the extension block EB 1 . In one embodiment, an area of the second protruding part PP 2  is smaller than an area for any electrically conductive block of the second electrically conductive line CL 2 . Also, the first electrically conductive line CL 1  and the second electrically conductive line CL 2  do not contact each other. 
         [0022]    The electrically conductive structure provided by the present invention has similar structures at the other side. Take  FIG. 2  for example, the second electrically conductive lines CL 2  respectively comprises a plurality of second electrically conductive blocks CB 2  and a second edge electrically conductive block ECB 2 . In one embodiment, the second electrically conductive blocks CB 2  are rhombus-shaped, and the second edge electrically conductive block ECB 1  comprises a triangular electrically conductive block TB 2  and an extension block EB 2 . The first electrically conductive line CL 1  further comprises a first protruding part PP 1 , which surrounds the extension block EB 2  of the second edge electrically conductive block ECB 2 . In one embodiment, the first protruding part PP 1  comprises at least one right angle (or T shape illustrated in  FIG. 2 ), thereby the first protruding part PP 1  can surround the extension block EB 2 . Please note, the right angle and the T shape do not mean to limit the scope of the present invention. The first protruding part PP 1  can be any other shape, for example, an inverted triangular shape. 
         [0023]      FIG. 3  is a schematic diagram illustrating the electrically conductive structure in  FIG. 2  further comprises a peripheral electrically conductive region. As illustrated in  FIG. 3 , the first peripheral electrically conductive region PCR 1  overlaps with a part of first electrically conductive lines CL 1 . In one embodiment, the first peripheral electrically conductive region PCR 1  overlaps with an extension block for the first edge electrically conductive block ECB 1  of the first electrically conductive line CL 1  (EB 1  in  FIG. 2 ). Accordingly, the first peripheral electrically conductive region PCR 1  and the first electrically conductive line CL 1  have equal potentials. Furthermore, the first peripheral electrically conductive region PCR 1  comprises a first containing region CR 1 , which is configured to contain a second protruding part PP 2 . Via such structure, the capacitance value variation for the capacitance between the first peripheral electrically conductive region PCR 1  and the second protruding part PP 2  can be applied to determine if an object is close even at an edge region, since the first peripheral electrically conductive region PCR 1  and the first electrically conductive line CL 1  have equal potentials. In one embodiment, the first peripheral electrically conductive region PCR 1  does not contact with the second electrically conductive line CL 2 . 
         [0024]    The electrically conductive structure provided by the present invention has similar structures at the other side. Please refer to  FIG. 3  again, the second peripheral electrically conductive region PCR 2  overlaps with an extension block for the second edge electrically conductive block ECB 2  of the second electrically conductive line CL 2  (EB 1  in  FIG. 2 ). Accordingly, the second peripheral electrically conductive region PCR 2  and the second electrically conductive line CL 2  have equal potentials. Furthermore, the second peripheral electrically conductive region PCR 2  comprises a second containing region CR 2 , which is configured to contain the first protruding part PP 1 . Via such structure, the capacitance value variation for the capacitance between the second peripheral electrically conductive region PCR 2  and the first protruding part PP 1  can be applied to determine if an object is close even at an edge region, since the second peripheral electrically conductive region PCR 2  and the second electrically conductive line CL 2  have equal potentials. In above-mentioned embodiments, the first electrically conductive lines and the second electrically conductive lines comprise ITO (Indium Tin Oxide), and the peripheral electrically conductive region comprises metal, but not limited. The first electrically conductive lines, the second electrically conductive lines and the peripheral electrically conductive region can comprise other materials which can provide the same function, which are not limited to ITO and metal. 
         [0025]    Besides it will be appreciated that a relation between a structure of the second protruding part PP 2  and the first edge electrically conductive block ECB 1  is not limited to the embodiment illustrated in  FIG. 2 . As illustrated in  FIG. 4 , the second protruding part PP 2  is bar-shaped rather than comprises at least one right angle. Such variation should also fall in the scope of the present invention. Further, the electrically conductive structure can comprise the above-mentioned structure for only one side. For example, only comprises the second protruding part PP 2  and does not comprise the first protruding part PP 1 . 
         [0026]      FIG. 5  is a schematic diagram illustrating arrangement for first electrically conductive lines and second electrically conductive lines according to another embodiment of the present invention. As illustrated in  FIG. 5 , the first electrically conductive lines CL 1  and the second electrically conductive lines CL 2  are provided on the same electrically conductive layer CLA (i.e. a single conductive layer) and orthogonal to each other. However, the angles between the first electrically conductive lines and second electrically conductive lines can be any other degree. Further, please note  FIG. 5  is only for explaining the arrangement for the first electrically conductive lines CL 1  and the second electrically conductive lines CL 2 , thus some details such as electrically conductive blocks are omitted for brevity here. 
         [0027]      FIG. 6  is a schematic diagram illustrating a display apparatus and a capacitive touch control apparatus according to one embodiment of the present invention. As illustrated in  FIG. 6 , an electrically conductive layer CLA having above-mentioned electrically conductive structures can be provided below the sensing surface SS or above the display layer DLA. The sensing surface SS, for example, comprises a protecting layer and a light reflecting layer. An object such as a finger can move on the sensing surface SS to perform a touch control operation. The display layer DLA, for example, comprises a display and related layers such as a protecting layer or an electrically conductive layer, and is configured to display images. If an electronic apparatus comprises the sensing surface SS, the electrically conductive layer CLA and the display layer DLA, the electronic apparatus can be regarded as a capacitance touch control apparatus, which always comprises a processor CU. The processor CU is configured to determine if any object touches the sensing surface SS, according to at least one capacitance value between the above-mentioned first electrically conductive lines and the second electrically conductive lines, and according to at least one capacitance value between the above-mentioned second protruding part and the first peripheral electrically conductive region. Also, if an electronic apparatus comprises the electrically conductive layer CLA and the display layer DLA, the electronic apparatus can be regarded as a display apparatus. It will be appreciated that the electrically conductive structure provided by the present invention is not limited to be applied to a capacitance touch control apparatus or a display apparatus. 
         [0028]    Based upon above-mentioned embodiments, the electrically conductive structure provided by the present invention can provide sufficient capacitance value variation even at an edge region, thus the conventional issue can be solved. 
         [0029]    Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.