TWI814097B - 導電模組及顯示裝置 - Google Patents

導電模組及顯示裝置 Download PDF

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TWI814097B
TWI814097B TW110136561A TW110136561A TWI814097B TW I814097 B TWI814097 B TW I814097B TW 110136561 A TW110136561 A TW 110136561A TW 110136561 A TW110136561 A TW 110136561A TW I814097 B TWI814097 B TW I814097B
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display device
conductive
contact
line
extension
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范佳銘
陳伯綸
陳俊達
林柏青
許雅筑
涂晉益
黃國峰
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大陸商業成科技（成都）有限公司
大陸商業成光電（深圳）有限公司
業成光電（無錫）有限公司
英特盛科技股份有限公司
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Abstract

一種導電模組，包括：複數導電結構；以及至少一連接線，每相鄰兩個導電結構之間電連接一所述連接線；每一連接線包括電連接的接觸部和延伸部，所述接觸部電連接於一所述導電結構和所述延伸部之間，所述延伸部可拉伸以使得所述導電模組可拉伸，在所述延伸部延伸的平面上，所述接觸部為正方形，所述延伸部的線寬與所述接觸部的邊長相等。本申請還提供一種顯示裝置。

Description

導電模組及顯示裝置
本申請涉及柔性導電技術領域，尤其涉及一種導電模組及包括該導電模組的顯示裝置。
電子裝置例如穿戴顯示器、曲面觸控裝置等，在使用時會產生一定程度的形變。上述電子裝置通常包括可拉伸的導電結構以實現形變。該可拉伸的導電結構通常電連接不可拉伸的導電結構。可拉伸的導電結構與不可拉伸的導電結構的交界處易因拉伸應力斷裂，導致電路斷路。
本申請一方面提供一種導電模組，包括：複數導電結構；以及至少一連接線，每相鄰兩個導電結構之間電連接一所述連接線；每一連接線包括電連接的接觸部和延伸部，所述接觸部電連接於一所述導電結構和所述延伸部之間，所述延伸部可拉伸以使得所述導電模組可拉伸，在所述延伸部延伸的平面上，所述接觸部為正方形，所述延伸部的線寬與所述接觸部的邊長相等。
本申請另一方面提供一種導電模組，包括：複數導電結構；兩相鄰的所述導電結構界定一非拉伸區域；以及至少一連接線，每相鄰兩個導電結構之間電連接一所述連接線，以界定一拉伸區域；每一連接線包括電連接的接觸部和延伸部，所述接觸部電連接於一所述導電結構和所述延伸部之間，所述延伸部可拉伸以使得所述導電模組可拉伸，在 所述延伸部延伸的平面上，所述接觸部為正方形，所述延伸部的線寬與所述接觸部的邊長相等；其中，所述接觸部的兩條相鄰的邊分別電連接延伸部和一所述導電結構；所述延伸部與所述接觸部連接處的位置具有一切線，所述接觸部與所述導電結構連接的邊所在的直線定義為接觸線，所述切線與所述接觸線之間的夾角小於30°，所述的延伸部位於所述拉伸區域。
本申請另一方面進一步提供一種顯示裝置，包括如上述的導電模組，所述導電模組用於接收驅動訊號以驅動所述顯示裝置顯示圖像。
上述導電模組，在延伸部延伸的平面上，接觸部為一邊長等於延伸部線寬的正方形，接觸部相鄰的兩個邊分別連接導電結構和延伸部，由於接觸部的邊長與延伸部線寬相等，接觸部的尺寸與延伸部的尺寸相適應，則當延伸部被拉伸時，接觸部與延伸部交界處的應力較小，不易引起連接線斷裂，故接觸部使得導電結構與連接線的連接強度提升。
100:顯示裝置
11:畫素
12:導電結構
13、23、33:連接線
131、331:接觸部
132、332:延伸部
F:拉伸力
L1:切線
L2:接觸線
10:導電模組
圖1為本申請實施例的顯示裝置的一平面結構示意圖。
圖2為本申請實施例的顯示裝置的另一平面結構示意圖。
圖3為圖2中導電結構與連接線的一平面結構示意圖。
圖4為圖2中導電結構與連接線的另一平面結構示意圖。
圖5為一對比例中導電結構與連接線的結構示意圖。
圖6為圖2中導電結構與連接線的另一平面結構示意圖。
圖7為本申請一變更實施例中導電結構與連接線的平面結構示意圖。
圖8為另一對比例中導電結構與連接線的結構示意圖。
請參閱圖1，本實施例的顯示裝置100用於顯示圖像。顯示裝置100可為發光二極體顯示器、有機發光顯示器、液晶顯示器等。本實施例中顯示裝置100為發光二極體顯示器。顯示裝置100包括複數畫素11。該複數畫素11排列為包括多行和多列的陣列。每個畫素11內具有一顆發光二極體(Light-emitting Diode,LED)。各個畫素11內的LED分別被驅動發光，以使得顯示裝置100顯示圖像。
請參閱圖2，顯示裝置100包括複數導電結構12。每一畫素11內具有一導電結構12。也即，複數導電結構12與複數畫素11一一對應。複數導電結構12也排列為包括多行和多列的陣列。本實施例中，每一導電結構12為畫素11內的LED的電極。於其他實施例中，例如當顯示裝置100為液晶顯示器時，每一導電結構12可為畫素電極。於其他實施例中，導電結構12也可不位於畫素11內，例如導電結構12可為晶片的端子，位於顯示裝置100的非顯示區。
顯示裝置100還包括多條連接線13。每一連接線13位於相鄰的兩個導電結構12之間，用於建立相鄰兩個導電結構12之間的電連接。每一行中的每兩個相鄰導電結構12之間具有一連接線13，且每一列中的每兩個相鄰導電結構12之間具有一連接線13。本實施例中，連接同一行導電結構12的連接線13用於傳輸閘極驅動訊號，連接同一列導電結構12的連接線13用於傳輸資料訊號。顯示裝置100用於根據該閘極驅動訊號和該資料訊號顯示圖像。
請一併參閱圖2和圖3，每一連接線13包括依次電連接的接觸部131和延伸部132。每一接觸部131電連接於一導電結構12和延伸部132之間，使得導電結構12和延伸部132電連接。本實施例中，每一連接線13包括兩個接觸部131和一延伸部132。延伸部132電連接於兩個接觸部131之間。兩個接觸部131分別用於電連接一導電結構12。
本實施例的顯示裝置100中，導電結構12為剛性材料，不可拉伸。本實施例的顯示裝置100中，連接線13也為剛性材料。藉由設置延伸部132整體為波浪狀(例如正弦波狀)，使得延伸部132可拉伸。在顯示裝置100受到拉伸力時，導電結構12和接觸部131幾乎不產生形變，而延伸部132可產生形變。藉由設置導電結構12和接觸部131不可拉伸且延伸部132可拉伸，使得顯示裝置100整體表現為可拉伸的狀態。故，顯示裝置100中任意相鄰兩個導電結構12之間的區域(也即排布有連接線13的區域)可定義為顯示裝置100的拉伸區域，而顯示裝置100中設置有導電結構12的區域則可定義為顯示裝置100的非拉伸區。
導電結構12和接觸部131不可拉伸，有利於降低導電結構12和接觸部131因形變發生斷裂的風險。於其他實施例中，導電結構12和接觸部131也可拉伸，有利於進一步增加顯示裝置100整體的形變能力。
本實施例中，導電結構12、延伸部132、接觸部131皆藉由圖案化製程(例如蝕刻、鐳射切割等)形成。相同的材料可在同一道圖案化製程中形成。例如本實施例中，延伸部132和接觸部131材料相同，則延伸部132和接觸部131可在同一製程中形成。在其他實施例中，導電結構12、延伸部132、接觸部131三者材料相同，則三者皆可在同一道製程中形成，有利於簡化顯示裝置100製程。
本實施例中，各個導電結構12的結構相同，各個延伸部132的結構相同，且各個接觸部131的結構相同，故圖3中僅展示一個導電結構12、一個延伸部132和一個接觸部131作為示例，對導電結構12、延伸部132及接觸部131之間的結構和電連接關係進行闡述。
本實施例中，連接線13由剛性導電材料構成，例如由金、銅、鋁、鉬、鈦等金屬，或銀漿、碳漿、銅漿等導電漿料構成。於其他實施例中，連接線13可由具有形變能力的導電材料構成，搭配波浪狀的結構，以利於進一步提升連接線13(或顯示裝置100)的形變能力。
當顯示裝置100受到拉伸力F時，導電結構12和接觸部131不產生形變，延伸部132被拉伸產生形變使得顯示裝置100整體可產生形變。若導電結構12和延伸部132直接電連接，當顯示裝置100受到拉伸力F時，拉伸力F使得導電結構12和連接線13連接處應力增加，增加連接線13的斷裂風險。本實施例藉由設置接觸部131以減小因應力增加導致的連接線13的斷裂風險。
本實施例中，延伸部132各處線寬d相等。在延伸部132延伸的平面上，接觸部131為一邊長l等於延伸部132線寬d的正方形。接觸部131相鄰的兩個邊分別連接導電結構12和延伸部132。由於接觸部131的邊長l與延伸部132線寬相等，接觸部131的尺寸與延伸部132的尺寸相適應。則當延伸部132被拉伸時，接觸部131與延伸部132交界處的應力較小，不易引起連接線13斷裂，故接觸部131使得導電結構12與連接線13的連接強度提升。於其他實施例中，延伸部132各處線寬不相等，接觸部131的邊長l等於延伸部132連接接觸部131處的線寬。
請參閱圖4，在本實施例中，由於延伸部132為波浪狀，延伸部132具有多條切線，定義延伸部132上與接觸部131連接處的切線為L1。定義接觸部131與導電結構12連接的邊所在的直線為接觸線L2。本實施例中，切線L1與接觸 線L2的夾角θ小於30°。如此，可使得延伸部132與接觸部131過渡更平滑，有利於減小連接線13被拉伸時的應力。
請參閱圖5，在一對比例中，切線L1與接觸線L2的夾角θ大於30°。請參閱圖6，本實施例中切線L1與接觸線L2的夾角θ小於30°。在拉伸力相同的情況下，測得圖5中連接線23上應力為423.1MPa，而測得圖6中連接線13上應力為337.1MPa。由此可知，切線L1與接觸線L2的夾角θ減小時，連接線13受到的應力顯著減小。故本實施例中，藉由設置切線L1與接觸線L2的夾角θ小於30°，有利於減小應力，提升延伸部132與接觸部131的連接強度，從而提升延伸部132與導電結構12的電連接強度。
請參閱圖7，於一變更實施例中，在延伸部132延伸的平面上，接觸部131為具有圓滑輪廓的形狀而不為正方形。也即，接觸部131至少有兩個邊為曲線。如此，使得接觸部131與延伸部132平滑過渡連接，有利於進一步減小延伸部132與接觸部131交界處所受的應力。
請參閱圖8，在一對比例中，接觸部331與延伸部332連接處非平滑而具有犄角α，由於犄角α會增加延伸部332與接觸部331交界處所受的應力，在拉伸力相同時，對比例中連接線33上檢測得到應力為474.7MPa，而檢測得到圖7中連接線13上應力為423.1MPa。由此可知，藉由設置接觸部131與延伸部132平滑連接，有利於減小延伸部132與接觸部131交界處所受的應力，提升延伸部132與接觸部131連接強度，從而提升連接線13與導電結構12的電連接強度。
如圖3所示的結構可作為一導電模組10應用於除顯示裝置100之外的需要形變的設備中，例如應用於觸控面板中。當導電模組10應用於觸控面板時，導電結構12可為觸控電極、觸控晶片等。當導電模組10應用於觸控面板時，同樣可實現應用於顯示裝置100時的所有的有益效果。
本技術領域之普通技術人員應當認識到，以上之實施方式僅是用來說明本發明，而並非用作為對本發明之限定，只要於本發明之實質精神範圍之內，對以上實施例所作之適當改變及變化均落於本發明要求保護之範圍之內。
12:導電結構
13:連接線
131:接觸部
132:延伸部
F:拉伸力
10:導電模組

Claims (9)

  1. 一種導電模組，包括：複數導電結構；以及至少一連接線，每相鄰兩個導電結構之間電連接一所述連接線；每一連接線包括電連接的接觸部和延伸部，所述接觸部電連接於一所述導電結構和所述延伸部之間，所述延伸部可拉伸以使得所述導電模組可拉伸，在所述延伸部延伸的平面上，所述接觸部為正方形，所述延伸部的線寬與所述接觸部的邊長相等；所述延伸部與所述接觸部連接處的位置具有一切線，所述接觸部與所述導電結構連接的邊所在的直線定義為接觸線，所述切線與所述接觸線之間的夾角小於30°，所述導電結構與所述接觸部在垂直於所述延伸部延伸的平面上的投影鄰接但是不重合。
  2. 如請求項1所述的導電模組，其中，所述接觸部的兩條相鄰的邊分別電連接延伸部和一所述導電結構。
  3. 如請求項1所述的導電模組，其中，每一所述連接線的延伸部為波浪狀。
  4. 如請求項1所述的導電模組，其中，每一所述連接線的延伸部為正弦波狀。
  5. 一種顯示裝置，其改良在於，包括如請求項1-4任一項所述的導電模組，所述導電模組用於接收驅動訊號以驅動所述顯示裝置顯示圖像。
  6. 如請求項5所述的顯示裝置，其中，所述顯示裝置包括複數畫素及多條所述連接線，每一所述導電結構位於一所述畫素中。
  7. 如請求項6所述的顯示裝置，其中，所述顯示裝置為液晶顯示裝置，每一所述導電結構為一畫素電極。
  8. 如請求項6所述的顯示裝置，其中，所述顯示裝置為發光二極體顯示裝置，所述顯示裝置包括複數發光二極體，每一發光二極體位於一所述畫素內，每一所述導電結構為一所述發光二極體。
  9. 如請求項5所述的顯示裝置，其中，還包括觸控面板，所述複數導電結構包括觸控電極或觸控晶片。
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