技术领域technical field
本发明涉及一种内嵌式触控显示面板。The invention relates to an embedded touch display panel.
背景技术Background technique
内嵌式触控显示面板通常包括显示面板及设置于该显示面板内的触控电极层，然而，由于显示面板的显示区及非显示区处的电极及布线差别较大，可能导致该触控电极层在显示区与该非显示区交界处的位置的触控灵敏度及准确度下降，影响该内嵌式触控显示面板的用户体验性。An in-cell touch display panel generally includes a display panel and a touch electrode layer disposed in the display panel. However, due to the large difference between the electrodes and wiring at the display area and the non-display area of the display panel, the touch control may be caused. The touch sensitivity and accuracy of the electrode layer at the junction of the display area and the non-display area decrease, which affects the user experience of the in-cell touch display panel.
发明内容Contents of the invention
有鉴于此，本发明提供一种用户体验性较佳的内嵌式触控显示面板。In view of this, the present invention provides an in-cell touch display panel with better user experience.
一种内嵌式触控显示面板，其包括位于该内嵌式触控显示面板内的触控导电层，该内嵌式触控显示面板还包括显示区及位于该显示区外侧的非显示区，该显示区包括主显示区及位于该显示区外侧的边缘显示区，该触控导电层包括位于该主显示区的主触控电极、及位于该边缘显示区的边缘触控电极，其中，该边缘触控电极的尺寸小于该主触控电极。An in-cell touch display panel, which includes a touch conductive layer located in the in-cell touch display panel, and the in-cell touch display panel also includes a display area and a non-display area located outside the display area , the display area includes a main display area and an edge display area located outside the display area, the touch conductive layer includes a main touch electrode located in the main display area, and an edge touch electrode located in the edge display area, wherein, The size of the edge touch electrode is smaller than that of the main touch electrode.
相较于现有技术，在该显示区的与非显示区相邻边缘显示区设置比主显示区的主触控电极尺寸较小的边缘触控电极，可提高该边缘显示区的触控灵敏度及准确度，提高该内嵌式触控显示面板的用户体验性。Compared with the prior art, setting edge touch electrodes smaller in size than the main touch electrodes in the main display area in the edge display area adjacent to the non-display area of the display area can improve the touch sensitivity of the edge display area and accuracy, improving the user experience of the embedded touch display panel.
附图说明Description of drawings
图1是本发明内嵌式触控显示面板第一实施方式的立体结构示意图。FIG. 1 is a schematic perspective view of the first embodiment of the in-cell touch display panel of the present invention.
图2是图1所示内嵌式触控显示面板的触控电极层的平面结构示意图。FIG. 2 is a schematic plan view of the touch electrode layer of the in-cell touch display panel shown in FIG. 1 .
图3是图1所示内嵌式触控显示面板的薄膜晶体管及其驱动布线层的平面结构示意图。FIG. 3 is a schematic plan view of the thin film transistor and its driving wiring layer of the in-cell touch display panel shown in FIG. 1 .
图4示本发明内嵌式触控显示面板第二实施方式的立体结构示意图。FIG. 4 is a schematic perspective view of the three-dimensional structure of the second embodiment of the in-cell touch display panel of the present invention.
主要元件符号说明Explanation of main component symbols
内嵌式触控显示面板 100、200Embedded touch display panel 100, 200
第一基板 110、210The first substrate 110, 210
第二基板 120、220Second substrate 120, 220
液晶层 130、230Liquid crystal layer 130, 230
触控电极层 140、240Touch electrode layer 140, 240
第一基底 111、221First base 111, 221
彩色滤光层 112、222Color filter layer 112, 222
第一偏光片 113、223The first polarizer 113, 223
第二基底 121、221Second base 121, 221
薄膜晶体管及驱动布线层 122、222Thin film transistor and driving wiring layer 122, 222
第一绝缘层 123、223The first insulating layer 123, 223
触控电极层 140、240Touch electrode layer 140, 240
第二绝缘层 124、224Second insulating layer 124, 224
金属导线层 125、249Metal wire layer 125, 249
第三绝缘层 126、225The third insulating layer 126, 225
像素电极层 127、227Pixel electrode layer 127, 227
第二偏光片 128、228Second polarizer 128, 228
显示区 150Display area 150
非显示区 160Non-display area 160
驱动电路 170Drive circuit 170
主显示区 151Main display area 151
边缘显示区 152Edge display area 152
主触控电极 141Main touch electrode 141
边缘触控电极 142Edge touch electrode 142
第一方向 XFirst Direction X
第二方向 YSecond direction Y
通孔 1241Through hole 1241
金属导线层 125Metal wire layer 125
金属导线 1251Metal wire 1251
第一边缘触控电极 142aThe first edge touch electrode 142a
第二边缘触控电极 142bSecond edge touch electrode 142b
第二边缘触控电极 142cSecond edge touch electrode 142c
扫描线 1221Scanning line 1221
数据线 1222Data cable 1222
薄膜晶体管 1223Thin film transistor 1223
像素电极 1271Pixel electrode 1271
第四绝缘层 226The fourth insulating layer 226
公共电极层 229Common electrode layer 229
如下具体实施方式将结合上述附图进一步说明本发明。The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.
具体实施方式detailed description
请参阅图1，图1是本发明内嵌式触控显示面板100第一实施方式的立体结构示意图。该内嵌式触控显示面板100包括第一基板110、第二基板120及夹于该第一基板110与该第二基板120之间的液晶层130。优先地，该第一基板110为彩色滤光片基板，该第二基板120为薄膜晶体管基板。该内嵌式触控显示面板100还包括一设置于该内嵌式触控显示面板100内部的触控电极层140。具体地，该触控电极层140可以形成于该第二基板120上，即该薄膜晶体管基板上Please refer to FIG. 1 . FIG. 1 is a schematic perspective view of a first embodiment of an in-cell touch display panel 100 according to the present invention. The in-cell touch display panel 100 includes a first substrate 110 , a second substrate 120 and a liquid crystal layer 130 sandwiched between the first substrate 110 and the second substrate 120 . Preferably, the first substrate 110 is a color filter substrate, and the second substrate 120 is a thin film transistor substrate. The in-cell touch display panel 100 also includes a touch electrode layer 140 disposed inside the in-cell touch display panel 100 . Specifically, the touch electrode layer 140 can be formed on the second substrate 120, that is, the thin film transistor substrate
该第一基板110可以包括第一基底111、形成该第一基底111上的彩色滤光层112及设置于该第一基板110外侧的第一偏光片113。该第二基板120可以包括第二基底121、设置于该第二基底121邻近该液晶层130一侧的薄膜晶体管及驱动布线层122、设置与该薄膜晶体管及驱动布线层122邻近该液晶层130一侧的第一绝缘层123、设置于该第一绝缘层123邻近该液晶层130一侧的触控电极层140、设置于该触控电极层140邻近该液晶层130一侧的第二绝缘层124、设置于该第二绝缘层124邻近该液晶层130的金属导线层125、设置于该金属导线层125邻近该液晶层130一侧的第三绝缘层126、设置于该第三绝缘层126邻近该液晶层130一侧的像素电极层127、及设置于该第一基底121远离该液晶层130一侧的第二偏光片128。该触控电极层140不仅作为该内嵌式触控显示面板100的触控感测层，还作为该内嵌式显示面板100的公共电极层，用配合像素电极层127驱动液晶层130以显示画面，具体地，该触控电极层140可以被分时施加触控感测信号及公共电极信号。The first substrate 110 may include a first base 111 , a color filter layer 112 formed on the first base 111 and a first polarizer 113 disposed outside the first substrate 110 . The second substrate 120 may include a second substrate 121, a thin film transistor and a driving wiring layer 122 disposed on a side of the second substrate 121 adjacent to the liquid crystal layer 130, and a thin film transistor and a driving wiring layer 122 disposed adjacent to the liquid crystal layer 130. The first insulating layer 123 on one side, the touch electrode layer 140 disposed on the side of the first insulating layer 123 adjacent to the liquid crystal layer 130 , the second insulating layer 140 disposed on the side of the touch electrode layer 140 adjacent to the liquid crystal layer 130 Layer 124, the metal wire layer 125 disposed on the second insulating layer 124 adjacent to the liquid crystal layer 130, the third insulating layer 126 disposed on the side of the metal wire layer 125 adjacent to the liquid crystal layer 130, disposed on the third insulating layer 126 is adjacent to the pixel electrode layer 127 on the side of the liquid crystal layer 130 , and the second polarizer 128 is disposed on the side of the first substrate 121 away from the liquid crystal layer 130 . The touch electrode layer 140 not only serves as the touch sensing layer of the in-cell touch display panel 100, but also serves as the common electrode layer of the in-cell display panel 100, and drives the liquid crystal layer 130 with the pixel electrode layer 127 to display Specifically, the touch sensing signal and the common electrode signal can be applied to the touch electrode layer 140 in a time-division manner.
请参阅图2，图2是图1所示内嵌式触控显示面板100的触控电极层的平面结构示意图。该内嵌式触控显示面板100还包括显示区150、位于该显示区150外侧的非显示区160及设置于该非显示区160的驱动电路170。进一步地，该显示区150可以分为主显示区151及位于该显示区150外侧的边缘显示区152。该触控导电层140包括位于该主显示区150的主触控电极141、及位于该边缘显示区152的边缘触控电极142，其中，该边缘触控电极142的尺寸小于该主触控电极141。Please refer to FIG. 2 . FIG. 2 is a schematic plan view of the touch electrode layer of the in-cell touch display panel 100 shown in FIG. 1 . The in-cell touch display panel 100 further includes a display area 150 , a non-display area 160 outside the display area 150 , and a driving circuit 170 disposed in the non-display area 160 . Further, the display area 150 can be divided into a main display area 151 and an edge display area 152 located outside the display area 150 . The touch conductive layer 140 includes a main touch electrode 141 located in the main display area 150 and an edge touch electrode 142 located in the edge display area 152, wherein the size of the edge touch electrode 142 is smaller than that of the main touch electrode. 141.
具体地，该主触控电极141呈矩阵排列，定义该矩阵行所在的方向为第一方向X，该矩阵列所在的方向为第二方向Y，该边缘触控电极142包括沿该第一方向X与该主触控电极141同行设置的第一边缘触控电极142a。该第一边缘触控电极142a沿该第一方向X的宽度小于该主触控电极141沿该第一方向X的宽度。该第一边缘触控电极142a沿该第二方向Y的宽度等于该主触控电极141沿该第二方向Y的宽度。优选地，该第一边缘触控电极142a沿该第一方向X的宽度为1.5毫米，该第一边缘触控电极142a与该主触控电极141沿该第二方向Y的宽度均为5毫米。此外，该主触控电极141之间的间距可以均相同，且大于该第一边缘触控电极142a与该主触控电极141之间的间距。Specifically, the main touch electrodes 141 are arranged in a matrix, defining the direction in which the rows of the matrix are located as the first direction X, the direction in which the columns are located in the matrix as the second direction Y, and the edge touch electrodes 142 include X is the first edge touch electrode 142a arranged in parallel with the main touch electrode 141 . The width of the first edge touch electrode 142 a along the first direction X is smaller than the width of the main touch electrode 141 along the first direction X. The width of the first edge touch electrode 142 a along the second direction Y is equal to the width of the main touch electrode 141 along the second direction Y. Preferably, the width of the first edge touch electrode 142a along the first direction X is 1.5 mm, and the width of the first edge touch electrode 142a and the main touch electrode 141 along the second direction Y are both 5 mm. . In addition, the spacing between the main touch electrodes 141 may be the same, and greater than the spacing between the first edge touch electrodes 142 a and the main touch electrodes 141 .
该边缘触控电极142还包括沿该第二方向Y与该主触控电极141同列设置的第二边缘触控电极142b，该第二边缘触控电极142b沿该第二方向Y的宽度小于该主触控电极141沿该第二方向Y的宽度。该第二边缘触控电极142b沿该第一方向X的宽度等于该主触控电极141沿该第一方向X的宽度。本实施方式中，该第二边缘触控电极142b沿该第二方向Y的宽度为1.5毫米，该第二边缘触控电极142b与该主触控电极141沿该第一方向X的宽度均为5毫米。此外，该主触控电极141之间的间距可以大于该第二边缘触控电极142b与该主触控电极141之间的间距。The edge touch electrode 142 further includes a second edge touch electrode 142b arranged in the same column as the main touch electrode 141 along the second direction Y, and the width of the second edge touch electrode 142b along the second direction Y is smaller than the second edge touch electrode 142b. The width of the main touch electrode 141 along the second direction Y. The width of the second edge touch electrode 142 b along the first direction X is equal to the width of the main touch electrode 141 along the first direction X. In this embodiment, the width of the second edge touch electrode 142b along the second direction Y is 1.5 mm, and the width of the second edge touch electrode 142b and the main touch electrode 141 along the first direction X are both 5 mm. In addition, the distance between the main touch electrodes 141 may be greater than the distance between the second edge touch electrodes 142 b and the main touch electrodes 141 .
进一步地，该边缘触控电极142还包括位于该边缘显示区152角落处的第三边缘触控电极142c。该第三边缘触控电极142c沿该第一方向X的宽度小于该第一边缘触控电极142a沿该第一方向X的宽度。该第三边缘触控电极142c沿该第二方向Y的宽度等于该第二边缘触控电极142b沿该第二方向Y的宽度。优选地，该第三边缘触控电极142c沿该第一方向X及该第二方向Y的宽度均为1.5毫米。Further, the edge touch electrode 142 also includes a third edge touch electrode 142c located at the corner of the edge display area 152 . The width of the third edge touch electrode 142c along the first direction X is smaller than the width of the first edge touch electrode 142a along the first direction X. The width of the third edge touch electrode 142c along the second direction Y is equal to the width of the second edge touch electrode 142b along the second direction Y. Preferably, the width of the third edge touch electrode 142c along the first direction X and the second direction Y is 1.5 mm.
该金属导线层125与该触控电极层140通过位于该第二绝缘层124的通孔1241电连接，该金属导线层125包括多条金属导线1251，每一主触控电极141及每一边缘触控电极142均通过一金属导线1251连接至驱动电路170。该驱动电路170可以为通过COG等技术设置于该第二基板120的非显示区160上，该驱动电路170用于分时施加触控信号及公共电压信号至该主触控电极141及边缘触控电极142。The metal wire layer 125 is electrically connected to the touch electrode layer 140 through the through hole 1241 located in the second insulating layer 124. The metal wire layer 125 includes a plurality of metal wires 1251, each main touch electrode 141 and each edge The touch electrodes 142 are connected to the driving circuit 170 through a metal wire 1251 . The drive circuit 170 can be disposed on the non-display area 160 of the second substrate 120 by COG and other technologies, and the drive circuit 170 is used to apply touch signals and common voltage signals to the main touch electrodes 141 and edge touch electrodes in time division. Control electrode 142.
请参阅图3，图3是图1所示内嵌式触控显示面板100的薄膜晶体管及其驱动布线层122的平面结构示意图。可以理解，该薄膜晶体管及其驱动布线层122包括沿第一方向X延伸的扫描线1221、沿该第二方向Y延伸且与该扫描线1221垂直绝缘相交的数据线1222、及位于该扫描线1221与数据线1222交叉处的薄膜晶体管1223。该薄膜晶体管1223的栅极连接至对应的扫描线1221，源极连接至对应的数据线1222，漏极电连接至该像素电极层127。其中该像素电极层127包括多个呈矩阵排列的像素电极1271，每一漏极对应电连接至其中一个像素电极1271。该扫描线1221及该数据线1222还电连接至该驱动电路170。该驱动电路170可以为整合触控及显示功能的集成电路芯片，用于施加显示驱动信号至该薄膜晶体管及其驱动布线层122、及施加公共电压信号或触控信号至该触控电极层140，从而使该内嵌式触控显示面板100实现显示与触控功能。可以理解，该薄膜晶体管1223的漏极可以依序经由该第一绝缘层123、第二绝缘层124及第三绝缘层126中的通孔（图未示）与对应的像素电极1271电连接。Please refer to FIG. 3 . FIG. 3 is a schematic plan view of the thin film transistor and its driving wiring layer 122 of the in-cell touch display panel 100 shown in FIG. 1 . It can be understood that the thin film transistor and its driving wiring layer 122 include a scan line 1221 extending along the first direction X, a data line 1222 extending along the second direction Y and vertically insulated and intersecting with the scan line 1221 , and a data line 1222 located on the scan line. The thin film transistor 1223 at the intersection of 1221 and the data line 1222 . The gate of the thin film transistor 1223 is connected to the corresponding scan line 1221 , the source is connected to the corresponding data line 1222 , and the drain is electrically connected to the pixel electrode layer 127 . The pixel electrode layer 127 includes a plurality of pixel electrodes 1271 arranged in a matrix, and each drain is electrically connected to one of the pixel electrodes 1271 . The scan line 1221 and the data line 1222 are also electrically connected to the driving circuit 170 . The driving circuit 170 can be an integrated circuit chip integrating touch and display functions, and is used for applying display driving signals to the thin film transistor and its driving wiring layer 122, and applying common voltage signals or touch signals to the touch electrode layer 140. , so that the in-cell touch display panel 100 realizes display and touch functions. It can be understood that the drain of the thin film transistor 1223 may be electrically connected to the corresponding pixel electrode 1271 via holes (not shown) in the first insulating layer 123 , the second insulating layer 124 and the third insulating layer 126 in sequence.
请参阅图4，图4是本发明内嵌式触控显示面板200第二实施方式的立体结构示意图。该内嵌式触控显示面板200包括第一基板210、第二基板120及夹于该第一基板210与该第二基板220之间的液晶层230。优先地，该第一基板210为彩色滤光片基板，该第二基板220为薄膜晶体管基板。该内嵌式触控显示面板200还包括一设置于该内嵌式触控显示面板200内部的触控电极层240。具体地，该触控电极层240可以形成于该第二基板220上，即该薄膜晶体管基板上Please refer to FIG. 4 . FIG. 4 is a schematic perspective view of the second embodiment of the in-cell touch display panel 200 of the present invention. The in-cell touch display panel 200 includes a first substrate 210 , a second substrate 120 and a liquid crystal layer 230 sandwiched between the first substrate 210 and the second substrate 220 . Preferably, the first substrate 210 is a color filter substrate, and the second substrate 220 is a thin film transistor substrate. The in-cell touch display panel 200 also includes a touch electrode layer 240 disposed inside the in-cell touch display panel 200 . Specifically, the touch electrode layer 240 can be formed on the second substrate 220, that is, the thin film transistor substrate
该第一基板210可以包括第一基底211、形成该第一基底211上的彩色滤光层212及设置于该第一基板210外侧的第一偏光片213。该第二基板220可以包括第二基底221、设置于该第二基底221邻近该液晶层230一侧的薄膜晶体管及驱动布线层222、设置与该薄膜晶体管及驱动布线层222邻近该液晶层230一侧的第一绝缘层223、设置于该第一绝缘层223邻近该液晶层一侧的公共电极层229、设置于该公共电极层229邻近该液晶层230一侧的第二绝缘层224、设置于该第二绝缘层224邻近该液晶层230一侧的像素电极层227、设置于该像素电极227邻近该液晶层230一侧的第三绝缘层225、设置于该第三绝缘层225邻近该像素电极227一侧的触控电极层240、设置于该触控电极层240邻近该液晶层230一侧第四绝缘层226、及设置于该第四绝缘层226邻近该液晶层230一侧的金属导线层249、及设置于该第一基底221远离该液晶层230一侧的第二偏光片228。The first substrate 210 may include a first base 211 , a color filter layer 212 formed on the first base 211 and a first polarizer 213 disposed outside the first substrate 210 . The second substrate 220 may include a second substrate 221, a thin film transistor and a driving wiring layer 222 disposed on a side of the second substrate 221 adjacent to the liquid crystal layer 230, and a thin film transistor and a driving wiring layer 222 disposed adjacent to the liquid crystal layer 230. The first insulating layer 223 on one side, the common electrode layer 229 disposed on the side of the first insulating layer 223 adjacent to the liquid crystal layer, the second insulating layer 224 disposed on the side of the common electrode layer 229 adjacent to the liquid crystal layer 230, The pixel electrode layer 227 disposed on the side of the second insulating layer 224 adjacent to the liquid crystal layer 230, the third insulating layer 225 disposed on the side of the pixel electrode 227 adjacent to the liquid crystal layer 230, and the third insulating layer 225 disposed adjacent to the third insulating layer 225. The touch electrode layer 240 on the side of the pixel electrode 227, the fourth insulating layer 226 disposed on the side of the touch electrode layer 240 adjacent to the liquid crystal layer 230, and the fourth insulating layer 226 disposed on the side adjacent to the liquid crystal layer 230 The metal wire layer 249 and the second polarizer 228 disposed on the side of the first substrate 221 away from the liquid crystal layer 230 .
其中，该公共电极层229用于配合该像素电极层227显示画面。该触控电极层240用于侦测施加到该内嵌式触控显示面板200上的触控动作。该触控电极层240的具体结构与图2所示的触控电极层140结构基本相同，此处就不再赘述其结构，该金属导线层249用于将该触控电极层240的多个触控电极连接至驱动电路。该薄膜晶体管及驱动布线层222与图3所示的薄膜晶体管及驱动布线层1222结构基本相同，此处也不再赘述其结构。Wherein, the common electrode layer 229 is used to cooperate with the pixel electrode layer 227 to display images. The touch electrode layer 240 is used for detecting touch actions applied to the in-cell touch display panel 200 . The specific structure of the touch electrode layer 240 is basically the same as that of the touch electrode layer 140 shown in FIG. The touch electrodes are connected to the driving circuit. The structure of the thin film transistor and the driving wiring layer 222 is basically the same as that of the thin film transistor and the driving wiring layer 1222 shown in FIG. 3 , and the structure thereof will not be repeated here.
相较于现有技术，在该显示区150的与非显示区160相邻边缘显示区152设置比主显示区151的主触控电极141尺寸较小的边缘触控电极142，可提高该边缘显示区152的触控灵敏度及准确度，提高该内嵌式触控显示面板100及200的使用者体验性。Compared with the prior art, an edge touch electrode 142 smaller in size than the main touch electrode 141 of the main display area 151 is provided in the edge display area 152 adjacent to the non-display area 160 of the display area 150, which can improve the edge The touch sensitivity and accuracy of the display area 152 improve the user experience of the in-cell touch display panels 100 and 200 .
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| CN201510281291.0ACN106292022A (en) | 2015-05-28 | 2015-05-28 | In-cell touch display panel |
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| CN201510281291.0ACN106292022A (en) | 2015-05-28 | 2015-05-28 | In-cell touch display panel |
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| CN201510281291.0APendingCN106292022A (en) | 2015-05-28 | 2015-05-28 | In-cell touch display panel |
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