Patent Publication Number: US-2020292863-A1

Title: Display panel

Description:
1. FIELD OF THE DISCLOSURE 
     The present disclosure relates to the field of display technology, and more particularly, to a display panel. 
     2. DESCRIPTION OF THE RELATED ART 
     When a liquid crystal panel is under a stress test, photo spacers may slide and then damage an alignment layer on an array substrate by scratching. In general, the photo spacers are disposed under a black matrix and covered with the black matrix. However, light leakage occurs in a position that is damaged by scratching, and then spots are formed while a slidable scope of the photo spacers is greater than a sheltering scope of the black matrix. When spots occur, display quality of liquid crystal panels is crucially affected. 
     Therefore, it is required to provide a display panel in order to solve the above problems regarding spots. 
     SUMMARY 
     A technical problem is that, light leakage occurs in a position that is damaged by scratching, and then spots are formed while a slidable scope of the photo spacers is greater than a sheltering scope of the black matrix. When spots occur, display quality of liquid crystal panels is crucially affected. 
     The object of the present disclosure is to provide a display panel to effectively improve the problems regarding spots. 
     In order to realize the above object, the present disclosure provides a display panel, including: 
     a first substrate; 
     a second substrate disposed opposite to the first substrate, wherein the second substrate includes an alignment layer formed on a surface of the second substrate, wherein a plurality of hollow portions are disposed on the surface of the second substrate, and wherein each of the plurality of hollow portions has an arc-shaped section; and 
     a plurality of spacers disposed on the first substrate, wherein an end of each of the plurality of spacers, far from the first substrate, abuts against the each of the plurality of hollow portions on the second substrate respectively. 
     In some embodiments, the first substrate is a color filter. 
     In some embodiments, the second substrate is a thin-film transistor substrate. 
     In order to realize the above object, the present disclosure provides a display panel, including: a first substrate; a second substrate disposed opposite to the first substrate, wherein a plurality of hollow portions are disposed on a surface of the second substrate; and a plurality of spacers disposed on the first substrate, wherein an end of each of the plurality of spacers, far from the first substrate, abuts against each of the plurality of hollow portions on the second substrate respectively. 
     In some embodiments, a section of the each of the plurality of hollow portions has a shape of an arc, a semicircle, a semi-ellipse, or a trapezoid. 
     In some embodiments, the each of the plurality of hollow portions has a ladder-shaped section. 
     In some embodiments, a plurality of micropores are disposed on a surface of the each of the plurality of hollow portions. 
     In some embodiments, the second substrate includes an alignment layer formed on the surface of the second substrate. 
     In some embodiments, the first substrate is a color filter. 
     In some embodiments, the second substrate is a thin-film transistor substrate. 
     In some embodiments, the second substrate further includes a planarization layer, wherein the alignment layer is formed on the planarization layer, and wherein the plurality of hollow portions are located at the upper part of the planarization layer. 
     In some embodiments, a depth of the each of the plurality of hollow portions is not greater than a thickness of the planarization layer. 
     The beneficial effect of the present disclosure is that, a display panel is provided to effectively improve the problems regarding spots. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       To ensure the features and the technical content of the disclosure are more apparent and easier to understand, please refer to the explanation and the accompanying drawings of the disclosure as follows. However, the accompanying drawings are merely for reference without limiting the disclosure. 
         FIG. 1  is a cross-sectional view of a display panel according to a first embodiment of the present disclosure. 
         FIG. 2A  is a partially cross-sectional view of a display panel according to a second embodiment of the present disclosure. 
         FIG. 2B  is a partially cross-sectional view of a display panel according to a third embodiment of the present disclosure. 
         FIG. 2C  is a partially cross-sectional view of a display panel according to a fourth embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     To ensure the objects, the technical solutions, and the effects of the disclosure are clearer and more specific, the disclosure will be explained in conjunction with the accompanying drawings in detail further below. It should be understood that the embodiments described herein are merely a part of the embodiments of the present disclosure instead of all of the embodiments and not used to limit the disclosure. 
     Please refer to  FIG. 1 , which is a cross-sectional view of a display panel according to a first embodiment of the present disclosure. A display panel  1  includes a first substrate  10 , a second substrate  20 , and a plurality of spacers  30 . The first substrate  10  includes a transparent substrate  100 , a light-shielding layer  101 , and a plurality of sub-pixel areas  102  formed on the light-shielding layer  101 . In an embodiment of the present disclosure, the first substrate  10  is a color filter. 
     As shown in  FIG. 1 , the second substrate  20  is disposed opposite to the first substrate  10 , and a plurality of hollow portions  20 U are disposed on a surface of the second substrate  20 . Specifically, a section of each hollow portion  20 U has, without limitation, a shape of an arc. Also, a section of each hollow portion  20 U can have a shape of a semicircle or a semi-ellipse. In an embodiment of the present disclosure, the second substrate  20  includes a transparent substrate  200  and an alignment layer  201  formed on the surface of the second substrate  20 . Furthermore, the second substrate  20  is a thin-film transistor substrate. In some embodiments, the second substrate  20  further includes a planarization layer. The alignment layer  201  can be formed on the planarization layer, and the plurality of hollow portions  20 U are located at the upper part of the planarization layer. Specifically, a depth of each hollow portion  20 U is not greater than a thickness of the planarization layer. 
     Continuing to refer to  FIG. 1 , a plurality of spacers  30  are disposed on the first substrate  10 . An end of each spacer  30 , far from the first substrate  10 , abuts against each hollow portion  20 U on the second substrate  20  respectively so that each spacer  30  can be located in a position of each hollow portion  20 U on the second substrate  20  without sliding. 
       FIG. 2A  is a partially cross-sectional view of a display panel according to a second embodiment of the present disclosure. For the convenience of explaining, in  FIG. 2A , part of components of the display panel  1  are omitted. As shown in  FIG. 2A , a hollow portion  20 U has a ladder-shaped section so that sliding difficulties faced by a spacer  30  are increased, and thus each spacer  30  can be located in a position of each hollow portion  20 U on a second substrate  20 . 
       FIG. 2B  is a partially cross-sectional view of a display panel according to a third embodiment of the present disclosure. For the convenience of explaining, in  FIG. 2B , part of components of the display panel  1  are omitted. As shown in  FIG. 2B , a section of a hollow portion  20 U has a shape of a trapezoid so that sliding difficulties faced by a spacer  30  are increased, and thus each spacer  30  can be located in a position of each hollow portion  20 U on a second substrate  20 . 
       FIG. 2C  is a partially cross-sectional view of a display panel according to a fourth embodiment of the present disclosure. For the convenience of explaining, in  FIG. 2C , part of components of the display panel  1  are omitted. As shown in  FIG. 2C , a plurality of micropores  2010  are disposed on a surface of a hollow portion  20 U so that sliding difficulties faced by a spacer  30  are increased, and thus each spacer  30  can be located in a position of each hollow portion  20 U on a second substrate  20 . 
     In conclusion, the present disclosure provides a display panel mainly by disposing hollow portions on a surface of a second substrate, causing spacers not to slide and scratch an alignment layer on the second substrate and thus avoiding the occurrence of spots. 
     It should be understood that the application of the present disclosure is not limited by the foregoing examples. A person of ordinary skill in the art is able to make modifications or changes based on the foregoing description, and all of these modifications and changes are within the scope of the appended claims of the present disclosure. 
     The industrial applicability of the present disclosure is that, a display panel is mainly provided by disposing hollow portions on a surface of a second substrate, causing spacers not to slide and scratch an alignment layer on the second substrate and thus avoiding the occurrence of spots.