TW202201092A - 液晶顯示面板及液晶顯示面板的製作方法 - Google Patents

液晶顯示面板及液晶顯示面板的製作方法 Download PDF

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TW202201092A
TW202201092A TW109123270A TW109123270A TW202201092A TW 202201092 A TW202201092 A TW 202201092A TW 109123270 A TW109123270 A TW 109123270A TW 109123270 A TW109123270 A TW 109123270A TW 202201092 A TW202201092 A TW 202201092A
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liquid crystal
display area
crystal display
display panel
color filter
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許國棟
王慧
方寧
麥真富
柳智忠
戴孟杰
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大陸商深超光電（深圳）有限公司
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Abstract

一種液晶顯示面板，具有顯示區與圍繞顯示區的非顯示區，所述液晶顯示面板包括彩色濾光基板與所述彩色濾光基板相對設置的薄膜電晶體陣列基板。所述彩色濾光基板包括第一襯板，所述第一襯板上設置有黑色矩陣，所述黑色矩陣位於所述顯示區並至少部分位於所述非顯示區，所述非顯示區範圍內的所述黑色矩陣上開設夾縫，所述夾縫圍繞所述顯示區形成一整圈； 所述薄膜電晶體陣列基板包括第二襯板，在所述第二襯板朝向所述彩色濾光基板的一側且與所述夾縫相對應的位置處設置有圍繞所述顯示區的一整圈的不透光的金屬環。本發明還提供一種所述液晶顯示面板的製作方法。

Description

液晶顯示面板及液晶顯示面板的製作方法
本發明涉及一種液晶顯示面板及液晶顯示面板的製作方法。
在液晶顯示技術中，IPS（In-Plane Switching，平面轉換）技術是一種藉由薄膜電晶體陣列基板上的上下兩個ITO（Indium tin oxide ，氧化銦錫）電極之間産生的邊緣電場，使得電極正上方的液晶分子都能在平行於薄膜電晶體陣列基板的玻璃基板的水平面上發生轉動的技術。
當薄膜電晶體陣列基板側有高電位，且液晶顯示面板的溫度較高時，液晶顯示面板的黑色矩陣膜層會産生異常導電性，則薄膜電晶體陣列基板側的顯示區內的ITO膜層與彩色濾光基板側的黑色矩陣層之間電荷移動形成異常液晶電場，從而影響IPS平行電場，造成顯示區液晶排列異常，使液晶顯示面板的顯示區的邊緣範圍出現亮線。
鑒於此，有必要提供一種液晶顯示面板，以解決因黑色矩陣膜層帶有異常電荷造成的液晶排列異常，從而出現的液晶顯示面板的顯示區的邊緣範圍出現亮線的問題。
一種液晶顯示面板，具有顯示區與圍繞所述顯示區的非顯示區，所述液晶顯示面板包括： 彩色濾光基板，包括第一襯板，所述第一襯板上設置有黑色矩陣，所述黑色矩陣位於所述顯示區並至少部分位於所述非顯示區，所述非顯示區範圍內的所述黑色矩陣上開設夾縫，所述夾縫圍繞所述顯示區形成一整圈；及 薄膜電晶體陣列基板，與所述彩色濾光基板相對設置，所述薄膜電晶體陣列基板包括第二襯板，在所述第二襯板朝向所述彩色濾光基板的一側且與所述夾縫相對應的位置處設置有圍繞所述顯示區的一整圈的不透光的金屬環。
本發明還提供一種所述液晶顯示面板的製作方法，包括： 製作帶有所述夾縫的所述彩色濾光基板；及 製作帶有所述金屬環的所述薄膜電晶體陣列基板。
相對於習知技術，所述液晶顯示面板利用所述夾縫將有異常電荷的黑色矩陣膜層與所述液晶顯示面板的顯示區需要的正常黑色矩陣膜層分隔開，從而不會影響所述顯示區正常的IPS平行電場，進而不會出現因黑色矩陣膜層帶有異常電荷造成的液晶排列異常，使得所述液晶顯示面板的所述顯示區的邊緣範圍出現亮線的問題。
下面將結合本申請實施例中的附圖，對本申請實施例進行描述，顯然，描述的實施例僅僅是本申請的一部分實施例，而不是全部的實施例。
參閱圖1與圖2，本發明實施例的液晶顯示面板100具有顯示區10A與圍繞所述顯示區10A的非顯示區10B。如圖2所示，邊界線10c與邊界線10d之間的區爲所述非顯示區10B。所述液晶顯示面板100包括薄膜電晶體陣列基板10，與所述薄膜電晶體陣列基板10相對設置的彩色濾光基板20。所述彩色濾光基板20包括第一襯板203，位於所述第一襯板203上設置有黑色矩陣201，所述黑色矩陣201位於所述顯示區10A並至少部分位於所述非顯示區10B，所述非顯示區10B範圍內的所述黑色矩陣201上開設夾縫202，所述夾縫202圍繞所述顯示區10A形成一整圈，所述夾縫202沿著朝向所述第一襯板203與遠離所述第一襯板203的方向貫穿所述黑色矩陣201，如圖2所示的邊界線202a與邊界線202b圍成區域爲一整圈的所述夾縫202。所述薄膜電晶體陣列基板10與所述彩色濾光基板20相對設置，所述薄膜電晶體陣列基板10包括第二襯板102，在所述第二襯板102朝向所述彩色濾光基板20的一側且與所述夾縫202相對應的位置處設置有圍繞所述顯示區10A的一整圈的不透光的所述金屬環101，如圖2所示，邊界線101a與邊界線101b圍成的區域爲一整圈的所述金屬環101。一整圈的所述金屬環101防止了一整圈的所述夾縫202容易造成的所述顯示區10A周邊出現漏光的現象。
進一步參照圖1與圖2，所述金屬環101的寬度大於所述夾縫202的寬度，且所述夾縫202位於所述薄膜電晶體陣列基板10上的正投影在所述金屬環101的範圍內。所述夾縫202的寬度爲如圖2所示的所述邊界線202a與所述邊界線202b相對形成的夾縫寬度202L，所述金屬環101的寬度爲如圖2所示的所述邊界線101a與所述邊界線101b相對形成的金屬環寬度101L。在本實施例中，所述夾縫202位於所述薄膜電晶體陣列基板10上的所述正投影在所述金屬環101的中間位置，所述金屬環101的兩邊超出所述正投影的寬度大小爲10μm。具體地，所述金屬環101的兩邊超出所述正投影的寬度是就所述夾縫寬度202L與所述金屬環寬度101L而言的。由於所述液晶顯示面板100的斜視角觀看的需求，所述金屬環101的寬度大於所述夾縫202的寬度，從而使得所述金屬環101起到防止斜視角漏光的效果。
在本實施例中，所述金屬環101可以爲所述薄膜電晶體陣列基板10的所述非顯示區10B的金屬信號線。在TN（Twisted Nematic ，扭曲向列）型液晶面板中，所述金屬信號線可以爲公共電極線；在IPS型液晶面板中，所述金屬信號線可以爲防靜電信號線。在本實施例中，所述金屬線號線所用材料是鉬與鋁的合金，但不局限與鉬與鋁的合金。
進一步參照圖1與圖2，當所述黑色矩陣201上設置的所述夾縫202的寬度太窄時，所述顯示區10A內需正常的所述黑色矩陣201容易感應到所述非顯示區10B的所述黑色矩陣201上的異常電荷，即，夾縫202的寬度太窄時不能有效防止異常電荷從所述非顯示區10B跳躍至所述顯示區10A；又，由於所述黑色矩陣201的主要作用是遮光，當所述黑色矩陣201上設置的所述夾縫202的寬度太寬時，存在所述顯示區10A的周邊漏光的風險。因此，在本實施例中，所述夾縫202的寬度爲大於等於20μm且小於等於100μm。
參照圖3，所述液晶顯示面板100還包括所述薄膜電晶體陣列基板10與所述彩色濾光基板20之間的液晶層30。所述彩色濾光基板20還包括多個濾光單元204與平坦層205。所述黑色矩陣201位於所述第一襯板203 靠近所述薄膜電晶體陣列基板10的一側，所述黑色矩陣201的作用之一是遮擋所述液晶層30的雜亂散射光，防止所述液晶顯示面板100上的亞像素混色與防止環境光照射到所述薄膜電晶體陣列基板10上薄膜電晶體的溝道上。在本實施例中，黑色矩陣201爲黑色樹脂材料。所述多個濾光單元204分別設置在所述顯示區10A的所述黑色矩陣201之間，即，任意相鄰的濾光單元204被黑色矩陣201隔離開。所述濾光單元204用於將液晶顯示面板100的背光源發出的光轉換爲顯示用的紅、綠、藍三色光。在本實施例中，所述濾光單元204包括紅、綠與藍三種顔色的濾光單元，每個濾光單元204由紅、綠與藍三基色色阻中的一種形成。在第一襯板203靠近所述薄膜電晶體陣列基板10的一側上形成平坦層205，所述平坦層205覆蓋所述黑色矩陣201與所述濾光單元204。
參照圖4，當所述黑色矩陣201上設置所述夾縫202時，所述夾縫202相對的所述平坦層205的位置處會存在塌陷，導致所述平坦層205膜層不平坦的問題，從而會影響所述液晶顯示面板100的封接膠的密封性，引起所述液晶顯示面板100顯示不良。
參照圖5，爲防止所述液晶顯示面板100顯示不良的現象，在本實施例中，所述夾縫202的區域內設置有填充物206來填補所述黑色矩陣201的缺失，所述填充物206完全覆蓋所述夾縫202。在本實施例中，填充物206爲一層藍色色阻材料或一層紅色色阻材料。
參照圖6，爲防止所述液晶顯示面板100顯示不良的現象，所述夾縫202區域可以爲一層藍色色阻材料與一層紅色色阻材料沿著所述彩色濾光基板20與所述薄膜電晶體陣列基板10相對方向進行疊加來進行填充。在本實施例中，所述藍色色阻與所述紅色色阻上下疊加的位置不受限制。
本發明實施例還提供一種所述液晶顯示面板100的製作方法。
參照圖7，所述液晶顯示面板100的製作方法，包括： S1：製作帶有所述夾縫202的所述彩色濾光基板20，以及； S2：製作帶有所述金屬環101的所述薄膜電晶體陣列基板10。
在本實施例中，所述液晶顯示面板100的製作方法，還包括： S3：在帶有所述夾縫202的所述彩色濾光基板20的所述非顯示區10B上藉由塗布形成包圍所述顯示區10A的內框膠，並固化所述內框膠； S4：在帶有所述夾縫202的所述彩色濾光基板20的所述顯示區10A上滴下液晶材料； S5：在帶有所述夾縫202的所述彩色濾光基板20的所述非顯示區10B上塗布形成包圍所述內框膠的外框膠； S6：將帶有所述夾縫202的所述彩色濾光基板20與帶有所述金屬環101的所述薄膜電晶體陣列基板10在真空環境下進行對盒； S7：固化所述外框膠，以藉由所述外框膠連接帶有所述夾縫202的所述彩色濾光基板20與帶有所述金屬環101的所述薄膜電晶體陣列基板10。
參照圖8，在本實施例中，製作帶有所述夾縫202的所述彩色濾光基板20方法，包括： S101：在所述第一襯板203上塗布用於形成所述黑色矩陣201的光阻材料，然後經過曝光與顯影工藝，在所述第一襯板203上形成帶有所述夾縫202的所述黑色矩陣201的圖案； S102：在所述第一襯板203的所述顯示區10A形成所述濾光單元204； S103：在所述第一襯板203上塗布一層所述平坦層205，經過所述平坦層205的膜層熱固化，實現平坦化效果。
在本實施中，製作帶有所述夾縫202的所述彩色濾光基板20方法，還包括在所述夾縫的區域內填充一層或者兩層色阻材料。
在本實施例中，在所述薄膜電晶體陣列基板10的製作過程中，所述金屬環101與所述薄膜電晶體陣列基板10的薄膜電晶體的栅極、或者與公共電極由同一金屬材料層製成，從而減少工藝步驟。
綜上所述，本發明實施例的液晶顯示面板100，所述黑色矩陣201上設置所述夾縫202，能夠將有異常電荷的所述黑色矩陣201膜層與所述液晶顯示面板100的所述顯示區10A需要的正常所述黑色矩陣201膜層分隔開，從而不會影響所述顯示區10A正常的IPS平行電場，進而不會出現因所述黑色矩陣201膜層帶有異常電荷造成的液晶排列異常，使得所述液晶顯示面板100的所述顯示區10A的邊緣範圍出現亮線的問題。且，一整圈的所述金屬環101防止了一整圈的所述夾縫202造成所述顯示區10A周邊出現漏光的現象。所述金屬環101的寬度大於所述夾縫202的寬度滿起到防止斜視角漏光的效果。使用所述填充物206填充所述夾縫202可有效解決所述夾縫引起的所述平坦層205塌陷的問題。
對於本領域技術人員而言，顯然本發明不限於上述示範性實施例的細節，而且在不背離本發明的精神或基本特徵的情況下，能夠以其他的具體形式實現本發明。最後應說明的是，以上實施例僅用以說明本發明的技術方案而非限制，儘管參照較佳實施例對本發明進行了詳細說明，本領域的普通技術人員應當理解，可以對本發明的技術方案進行修改或等同替換，而不脫離本發明技術案的範圍。
100:液晶顯示面板 10A:顯示區 10B:非顯示區 10:薄膜電晶體陣列基板 101:金屬環 101L:金屬環寬度 102:第二襯板 20:彩色濾光基板 201:黑色矩陣 202:夾縫 202L:夾縫寬度 203:第一襯板 204:濾光單元 205:平坦層 206:填充物 101a、101b、202a、202b、10c、10d:邊界線 30:液晶層
圖1爲本發明實施例的彩色濾光基板與薄膜電晶體陣列基板的剖面示意圖。
圖2爲本發明實施例的液晶顯示面板的平面示意圖。
圖3爲本發明實施例的液晶顯示面板的剖面示意圖。
圖4爲本發明實施例的彩色濾光基板的平臺層塌陷的示意圖。
圖5爲本發明實施例的黑色矩陣的夾縫內填充一層色阻材料的示意圖
圖6爲本發明實施例的黑色矩陣的夾縫內填充兩層色阻材料的示意圖。
圖7爲本發明實施例的液晶顯示面板的製作方法流程圖。
圖8爲本發明實施例的彩色濾光基板的製作方法流程圖。
100:液晶顯示面板
10A:顯示區
10B:非顯示區
10:薄膜電晶體陣列基板
101:金屬環
101L:金屬環寬度
102:第二襯板
20:彩色濾光基板
201:黑色矩陣
202:夾縫
202L:夾縫寬度
203:第一襯板

Claims (12)

  1. 一種液晶顯示面板，具有顯示區與圍繞所述顯示區的非顯示區，其改良在於，所述液晶顯示面板包括： 彩色濾光基板，包括第一襯板，所述第一襯板上設置有黑色矩陣，所述黑色矩陣位於所述顯示區並至少部分位於所述非顯示區，所述非顯示區範圍內的所述黑色矩陣上開設夾縫，所述夾縫圍繞所述顯示區形成一整圈；及 薄膜電晶體陣列基板，與所述彩色濾光基板相對設置，所述薄膜電晶體陣列基板包括第二襯板，在所述第二襯板朝向所述彩色濾光基板的一側且與所述夾縫相對應的位置處設置有圍繞所述顯示區的一整圈的不透光的金屬環。
  2. 如請求項1所述的液晶顯示面板，其中，所述金屬環的寬度大於所述夾縫的寬度，且所述夾縫位於所述薄膜電晶體陣列基板上的正投影在所述金屬環的範圍內。
  3. 如請求項2所述的液晶顯示面板，其中，所述夾縫位於所述薄膜電晶體陣列基板上的所述正投影在所述金屬環的中間位置，所述金屬環的兩邊超出所述正投影的寬度大小爲10μm。
  4. 如請求項3所述的液晶顯示面板，其中，所述夾縫的寬度爲大於等於20μm 且小於等於100μm。
  5. 如請求項4所述的液晶顯示面板，其中，所述金屬環爲位於所述非顯示區的金屬信號線。
  6. 如請求項5所述的液晶顯示面板，其中，在所述夾縫內設置有填充物，所述填充物完全覆蓋所述夾縫。
  7. 如請求項6所述的液晶顯示面板，其中，所述填充物爲一層藍色色阻材料或一層紅色色阻材料。
  8. 如請求項6所述的液晶顯示面板，其中，所述填充物爲一層藍色色阻材料與一層紅色色阻材料沿著所述彩色濾光基板與所述薄膜電晶體陣列基板相對方向疊加形成。
  9. 如請求項1至8中任意一項所述的液晶顯示面板，其中，所述彩色濾光基板還包括： 多個濾光單元，每個所述濾光單元設置在所述顯示區的所述黑色矩陣之間； 平坦層，形成於所述第一襯板靠近所述薄膜電晶體陣列基板一側上，所述平坦層覆蓋所述黑色矩陣與所述濾光單元。
  10. 一種如請求項1至9中任意一項所述的液晶顯示面板的製作方法，其改良在於，包括: 製作帶有所述夾縫的所述彩色濾光基板；及 製作帶有所述金屬環的所述薄膜電晶體陣列基板。
  11. 如請求項10所述的液晶顯示面板的製作方法，其中，製作帶有所述夾縫的所述彩色濾光基板包括： 在所述第一襯板上塗布用於形成所述黑色矩陣的黑色樹脂材料，然後經過曝光與顯影工藝，在所述第一襯板上形成帶有所述夾縫的所述黑色矩陣的圖案。
  12. 如請求項10所述的液晶顯示面板的製作方法，其中，還包括在所述夾縫的區域內填充一層或者兩層色阻材料。
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