TW202013035A - 一種雙層微結構的顯示電漿模組及其製造方法 - Google Patents
一種雙層微結構的顯示電漿模組及其製造方法 Download PDFInfo
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Abstract
本發明屬於電子顯示技術領域,涉及一種雙層微結構的顯示電漿模組,包括像素電極及位於像素電極上方的透明電極,所述像素電極和透明電極間設有顯示電漿及包圍所述顯示電漿的襯墊邊框,所述像素電極和/或透明電極上設有用於均勻分散和穩固顯示電漿的電漿阻離陣列,在所述電漿阻離陣列上吸附有間隔粒子層;本發明的顯示電漿模組直接使用顯示電漿替代現有的微杯結構或微膠囊,並在顯示電漿中設置用於均勻分散、穩固和隔離顯示電漿的電漿阻離陣列及間隔粒子層,起到支撐整個顯示電漿模組和控制顯示電漿厚度的作用,同時有效防止顯示電漿無序流動,保障了像素電極和透明電極之間電場方向的垂直度。
Description
本發明涉及一種顯示電漿模組及其製造方法,尤其是一種雙層微結構的顯示電漿模組及其製造方法,屬於電子顯示技術領域。
電泳顯示利用帶電的膠體顆粒在電場作用下發生泳動的現象,通過電場驅動不同光電性能的電泳粒子來實現圖像和文字的顯示,與已知的顯示技術相比,電泳顯示具備如下特點:柔性易彎曲,重量輕,厚度薄,對比度高,能耗低,可視角度大,陽光下可讀,具備圖像雙穩態,容易大面積生產等特點。
電泳顯示技術最初在上世紀70年代被提出。在專利US3892568中公開了至少包含一種電泳粒子的電泳顯示材料的製備過程。在專利JP1086116中公開了至少含有一種電泳粒子,並且電泳液被微膠囊包覆的電泳顯示系統。在US6930818中公開了使用微杯結構包覆電泳液的電泳顯示單元。在專利US5930026,US5961804,US6017584和US6120588中,公開了微膠囊包覆的電泳顯示單元,其中顯示電漿包含兩種或者兩種以上不同光電性能的電泳粒子。縱觀之前的已有技術,微杯和微膠囊型電子墨水顯示屏都是基於微小的空腔結構,即微杯和微膠囊。這兩種微結構的作用在於分散包覆顯示電漿。
儘管兩種結構的顯示屏都在實際產品得以應用,但是兩種結構具有如下缺點:
1)微膠囊和微杯本身不具備顯示功能,雖然其組成材料多是透明,遮蓋力差的材料,但在整個電泳顯示體系中用量較大,會影響整個顯示屏的顯示效果,對比度下降,分辨率下降,以及使用壽命降低;
2)微膠囊和微杯結構的存在無疑加厚整個電泳顯示材料層的厚度,使得顯示屏對比度和分辨率下降,響應速度慢,驅動電壓高,刷新慢,功耗大,工作溫度範圍窄;
3)微膠囊和微杯結構製備過程過於複雜,造成生產製造上的困難和浪費,造成良率下降,材料浪費,製造成本高。
有鑑於此,吾等發明人乃潛心進一步研究,並著手進行研發及改良,期以一較佳設作以解決上述問題,且在經過不斷試驗及修改後而有本發明之問世。
本發明的目的是針對目前電子顯示屏的問題,提供一種雙層微結構的顯示電漿模組及其製造方法,可以直接使用顯示電漿替代現有的微杯結構或微膠囊,並在顯示電漿中設置用於均勻分散、穩固和隔離顯示電漿的電漿阻離陣列及間隔粒子層,起到支撐電極和控制顯示電漿厚度的作用,同時有效防止顯示電漿無序流動,保障了像素電極和透明電極之間電場方向的垂直度。
為實現以上技術目的,本發明的技術方案是:一種雙層微結構的顯示電漿模組,包括像素電極及位於像素電極上方的透明電極,其特徵在於,所述像素電極和透明電極間設有顯示電漿及包圍所述顯示電漿的襯墊邊框,所述像素電極和/或透明電極上設有用於均勻分散和穩固顯示電漿的電漿阻離陣列,在所述電漿阻離陣列上吸附有間隔粒子層。
進一步地,所述電漿阻離陣列包括若干個呈陣列分布的電漿阻離框,所述像素電極包括若干個呈陣列分布的像素電極單元,每個電漿阻離框內包括若干個像素電極單元,且在所述像素電極上的電漿阻離框覆蓋在source路線和gate線路上。
進一步地,所述電漿阻離陣列中電漿阻離框的寬度在1-30微米之間,高度在0.1-60微米之間,所述間隔粒子層中的間隔粒子的大小在1-10微米之間。
進一步地,所述電漿阻離陣列中的電漿阻離框及襯墊邊框的材料為丙烯酸樹脂、聚氨酯樹脂、環氧樹脂、有機矽樹脂或二氧化矽;所述間隔粒子層中的間隔粒子為聚合物微球或二氧化矽微球。
進一步地,所述像素電極內嵌在TFT玻璃基板上,且像素電極與顯示電漿間通過遮光絕緣膠水層黏附。
進一步地,所述透明電極包括覆蓋在顯示電漿、襯墊邊框上的導電層及覆蓋在所述導電層上的透明基材;在所述襯墊邊框與導電層間、在所述顯示電漿邊緣與導電層間均設有顯示區保護層。
進一步地,所述顯示電漿的厚度在2-70微米之間,且顯示電漿中電泳液的黏度為100-100000厘泊,所述顯示電漿中包含至少兩種不同光電性能的電泳粒子。
進一步地,所述襯墊邊框內可添加支撐微球,所述支撐微球的包括樹脂微球、玻璃微球,且支撐微球的直徑為2-60微米。
為了進一步實現以上技術目的,本發明還提出一種雙層微結構的顯示電漿模組製造方法,其特徵是,包括如下步驟:
步驟一. 在所述像素電極和/或透明電極的導電層上預先製備好電漿阻離陣列;
步驟二. 將像素電極嵌入TFT玻璃基板內,並將TFT玻璃基板放置在點膠平臺上;
步驟三. 在像素電極上點封框膠,形成襯墊邊框;
步驟四. 在襯墊邊框內絲印顯示電漿和噴塗間隔粒子,較輕的間隔粒子漂浮在顯示電漿上;
步驟五. 在襯墊邊框內塗覆導電銀漿,所述導電銀漿與像素電極電連接;
步驟六. 先將顯示區保護層壓合在整個襯墊邊框上,再將透明電極壓合在襯墊邊框和顯示電漿上,在此過程中,大部分間隔粒子受到擠壓被轉移吸附在電漿阻離陣列的電漿阻離框上,形成間隔粒子層,然後進行固化,所述導電銀漿與透明電極的導電層電連接;
步驟七. 切割掉邊緣部分透明電極和顯示區保護層,露出像素電極上集成電路模塊IC和柔性電路板綁定的預定位置;
步驟八. 將集成電路模塊IC和柔性電路板均通過導電膠條黏附在像素電極的邊緣;
步驟九. 將集成電路模塊IC、柔性電路板和導電膠條周圍通過藍膠固封在像素電極上,完成電子墨水顯示屏的製造。
進一步地,所述步驟一中,所述像素電極表面可預先塗覆好遮光絕緣膠水層,所述電漿阻離陣列通過印刷、塗布或點膠方式塗覆在像素電極或者透明電極的導電層表面,再通過光固化的、熱固化或者濕氣固化,或者通過物理生長、化學生長方式實現;所述步驟三中,在所述封框膠內可預先塗覆好支撐微球。
與傳統電子墨水顯示屏相比,本發明具有以下優點:
1)相較於傳統的微結構電泳顯示屏,由於傳統微膠囊或微杯不參與顯示,因此會影響顯示效果,本發明採用顯示電漿,去掉了微膠囊或微杯,顯示效果更好,對比度提高10%以上;
2)本發明的顯示電漿能夠降低整個電泳顯示層的厚度,響應時間降到80毫秒以下,驅動電壓降低到正負1.5-8V之間,工作溫度範圍拓寬為-30-70度,同時降低了製作成本;
3)本發明在像素電極和透明電極間設置電漿阻離陣列,可以有效均勻分散並穩固顯示電漿,並提高顯示效果;同時在像素電極上的電漿阻離陣列覆蓋在source路線和gate線路上,能夠有效防止相鄰像素電極之間的短路及像素電極之間產生電場的竄擾,同時也阻止了顯示電漿的電泳粒子在source線路和gate線路上聚集,保障了像素電極和透明電極之間電場的方向性和垂直度,防止了顯示電漿中的電泳粒子的無序運動;
4)本發明在像素電極和透明電極間設置電漿阻離陣列和間隔粒子層,與只有電漿阻離陣列結構相比,間隔粒子層和電漿阻離陣列起到了支撐電極和控制顯示電漿厚度的作用,並將整個顯示電漿分割為多個阻力框,在電場作用下,保證電泳粒子沿著電場方向垂直有序運動,保證了顯示電漿的穩固性,提高顯示屏對比度和顯示效果;
5)本發明的顯示區保護層對顯示區的顯示電漿進行保護,起到遮光和絕緣的作用;
6)本發明的遮光層絕緣膠水層用於保護像素電極不受光學照射,隔離顯示電漿和像素電極,防止顯示電漿損害像素電極;
7)本發明工藝可以生產100寸以上大尺度的超薄顯示電漿模組。
關於吾等發明人之技術手段,茲舉數種較佳實施例配合圖式於下文進行詳細說明,俾供 鈞上深入瞭解並認同本發明。
下面結合具體附圖和實施例對本發明作進一步說明。
本發明不限於以下的實施方式,在以下的說明中所參照的各圖是為了能夠對本發明的內容進行理解而設置的,即本發明不限於各圖所舉例的電子墨水顯示屏結構。
如第1圖和第2圖所示,實施例1以雙粒子電子墨水顯示屏為例,一種雙層微結構的顯示電漿模組,包括像素電極13及位於像素電極13上方的透明電極1,所述像素電極13和透明電極1間設有顯示電漿3及包圍所述顯示電漿3的襯墊邊框6,所述像素電極13上設有用於均勻分散和穩固顯示電漿3的電漿阻離陣列14,在所述電漿阻離陣列14上吸附有間隔粒子層16。
所述電漿阻離陣列14包括若干個呈陣列分布的電漿阻離框,所述像素電極13包括若干個呈陣列分布的像素電極單元,每個電漿阻離框內包括若干個像素電極單元,且在所述像素電極13上的電漿阻離框覆蓋在source路線和gate線路上;所述電漿阻離陣列14中的電漿阻離框及襯墊邊框6的材料為丙烯酸樹脂、聚氨酯樹脂、環氧樹脂、有機矽樹脂或二氧化矽;本實施例1中電漿阻離陣列14中電漿阻離框的寬度在1-30微米之間,優選高度為1-10微米之間,高度在0.1-60微米之間,優選寬度為5-15微米之間;所述間隔粒子層16中的間隔粒子為聚合物微球或二氧化矽微球;本實施例1中間隔粒子層16中的間隔粒子的大小在1-10微米之間,優選大小為2-8微米之間;
在透明電極1和像素電極13之間,電漿阻離陣列14和間隔粒子層16將整個顯示電漿3分成若干個阻離框,在IC集成電路模塊11的驅動下,所述像素電極13可以包括段碼,點矩陣等,由於間隔粒子層16的存在,電泳粒子只能在像素電極13和透明電極1間的電場方向上垂直上下運動,有效防止了顯示電漿3中的電泳粒子沿著透明電極1無序運動,保證了顯示電漿3的穩固性,可以使顯示屏實現顯示黑白色,提高顯示屏對比度和顯示效果;
所述像素電極13內嵌在TFT玻璃基板上,且像素電極13與顯示電漿3間通過遮光絕緣膠水層5黏附,膠水可以是水型,溶劑型,熱熔型,光固化型等,優選為水型和光固化型,塗覆遮光絕緣膠水層5的厚度範圍在1-20微米,優選厚度範圍是2-10微米;
所述透明電極1包括覆蓋在顯示電漿3、襯墊邊框6上的導電層2及覆蓋在所述導電層2上的透明基材15;在所述襯墊邊框6與導電層2間、在所述顯示電漿3邊緣與導電層2間均設有顯示區保護層8。
所述顯示電漿3的厚度在2-70微米之間,優選厚度在8-20微米之間,且顯示電漿3中電泳液的黏度為100-100000厘泊,優選黏度選擇在1000-10000厘泊,所述顯示電漿3中包含至少兩種不同光電性能的電泳粒子。
本實施例1中的襯墊邊框6內添加有支撐微球4,所述支撐微球4的包括樹脂微球、玻璃微球,且支撐微球4的直徑為2-60微米,優選大小在5-30微米之間。
本發明實施例還可以在透明電極1上設置用於均勻分散和穩固顯示電漿3的電漿阻離陣列14,在所述電漿阻離陣列14和像素電極13間設有間隔粒子層16;或者在透明電極1和像素電極13上均設置用於均勻分散和穩固顯示電漿3的電漿阻離陣列14,在所述電漿阻離陣列14間設置吸附間隔粒子層16;在透明電極1和像素電極13之間,電漿阻離陣列14和間隔粒子層16將整個顯示電漿3分成若干個阻離框,在IC集成電路模塊11的驅動下,所述像素電極13可以包括段碼,點矩陣等,由於間隔粒子層16的存在,大部分電泳粒子只能在像素電極13和透明電極1間的電場方向上垂直上下運動,有效防止了顯示電漿3中的電泳粒子在電漿阻離框間的空隙無序運動,保證了顯示電漿3的穩固性,提高顯示屏對比度和顯示效果。
如上實施例中的一種雙層微結構的顯示電漿模組製造方法,包括如下步驟:
步驟一. 在所述像素電極13和/或透明電極1的導電層2上預先製備好電漿阻離陣列14;所述電漿阻離陣列14通過印刷、塗布或點膠方式塗覆在像素電極13或者透明電極1的導電層2表面,再通過光固化的、熱固化或者濕氣固化,或者通過物理生長、化學生長方式實現;
在所述像素電極13表面可預先塗覆好遮光絕緣膠水層5;
步驟二. 將像素電極13嵌入TFT玻璃基板7內,並將TFT玻璃基板7放置在點膠平臺上;
步驟三. 在像素電極13上點封框膠,形成襯墊邊框6,所述襯墊邊框6包圍像素電極13;在所述封框膠內可預先塗覆好支撐微球4,由於支撐微球4為實心球,因此支撐微球4能夠用於支撐整個顯示電漿模組;
步驟四. 在襯墊邊框6內絲印顯示電漿3和噴塗間隔粒子,由於間隔粒子的材料為為聚合物微球或二氧化矽微球,大小在2-8微米之間,同時間隔粒子的重量約為顯示電漿球的1/5,因此間隔粒子較輕,可漂浮在顯示電漿3上;
步驟五. 在襯墊邊框6內塗覆導電銀漿10,使導電銀漿10與像素電極13電連接;
步驟六. 先將顯示區保護層8壓合在整個襯墊邊框6上,再將透明電極1(包括導電層2和透明基材15)壓合在襯墊邊框6和顯示電漿3上,在此過程中,由於間隔粒子和電漿阻離陣列14間存在吸附力,大部分間隔粒子受到擠壓被轉移吸附在電漿阻離陣列14的電漿阻離框上,形成間隔粒子層16,然後進行固化,所述導電銀漿10與透明電極1的導電層2電連接;
步驟七. 切割掉邊緣部分透明電極1和顯示區保護層8,露出像素電極13上IC集成電路模塊11和柔性電路板12綁定的預定位置;
步驟八. 將IC集成電路模塊11和柔性電路板12均通過導電膠條黏附在像素電極13的邊緣;
步驟九. 將IC集成電路模塊11、柔性電路板12和導電膠條周圍通過藍膠9固封在像素電極13上,完成電子墨水顯示屏的製造。
本發明的顯示電漿3中包含至少兩種不同光電性能的電泳粒子,光電性能不同的電泳粒子,電泳粒子優選的顏色包括白色,黑色,紅色,綠色,藍色和黃色等,用來實現黑白、單彩色、雙彩色、多彩色和真彩色等顯示,同時顯示電漿3中可以包含熒光材料,熒光材料包括無機熒光材料和有機熒光材料,無機熒光材料包括稀土熒光材料,金屬硫化物等,有機熒光材料包括小分子熒光材料和高分子熒光材料等。
本發明的顯示電漿模組不需要使用微膠囊或微杯等傳統微結構,直接使用顯示電漿3,並在透明電極1和像素電極13間的顯示電漿3中設置電漿阻離陣列14和間隔粒子層16,用於支撐整個電視電漿模組,且能夠降低顯示電漿模組厚度, 並將整個顯示電漿分割為多個阻力框,在電場作用下,保證電泳粒子沿著電場方向有序運動,保證了顯示電漿的穩固性,提高顯示屏對比度和顯示效果。
以上對本發明及其實施方式進行了描述,該描述沒有限制性,附圖中所示的也只是本發明的實施方式之一,實際結構並不局限於此。總而言之如果本領域的普通技術人員受其啟示,在不脫離本發明創造宗旨的情況下,不經創造性的設計出與該技術方案相似的結構方式及實施例,均應屬本發明的保護範圍。
綜上所述,本發明所揭露之技術手段確能有效解決習知等問題,並達致預期之目的與功效,且申請前未見諸於刊物、未曾公開使用且具長遠進步性,誠屬專利法所稱之發明無誤,爰依法提出申請,懇祈 鈞上惠予詳審並賜准發明專利,至感德馨。
惟以上所述者,僅為本發明之數種較佳實施例,當不能以此限定本發明實施之範圍,即大凡依本發明申請專利範圍及發明說明書內容所作之等效變化與修飾,皆應仍屬本發明專利涵蓋之範圍內。
〔本發明〕1:透明電極10:導電銀漿11:IC集成電路模塊12:柔性電路板13:像素電極14:電漿阻離陣列15:透明基材16:間隔粒子層2:導電層3:顯示電漿4:支撐微球5:遮光絕緣膠水層6:襯墊邊框7:TFT玻璃基板8:顯示區保護層9:藍膠
第1圖為本發明實施例1的側視結構示意圖。 第2圖為第1圖中A部分的剖視結構示意圖。
1:透明電極
13:像素電極
14:電漿阻離陣列
15:透明基材
16:間隔粒子層
2:導電層
3:顯示電漿
4:支撐微球
5:遮光絕緣膠水層
6:襯墊邊框
7:TFT玻璃基板
8:顯示區保護層
9:藍膠
Claims (10)
- 一種雙層微結構的顯示電漿模組,包括像素電極(13)及位於像素電極(13)上方的透明電極(1),其特徵在於,所述像素電極(13)和透明電極(1)間設有顯示電漿(3)及包圍所述顯示電漿(3)的襯墊邊框(6),所述像素電極(13)和/或透明電極(1)上設有用於均勻分散和穩固顯示電漿(3)的電漿阻離陣列(14),在所述電漿阻離陣列(14)上吸附有間隔粒子層(16)。
- 如申請專利範圍第1項所述之一種雙層微結構的顯示電漿模組,其中,所述電漿阻離陣列(14)包括若干個呈陣列分布的電漿阻離框,所述像素電極(13)包括若干個呈陣列分布的像素電極單元,每個電漿阻離框內包括若干個像素電極單元,且在所述像素電極(13)上的電漿阻離框覆蓋在source路線和gate線路上。
- 如申請專利範圍第1項所述之一種雙層微結構的顯示電漿模組,其中,所述電漿阻離陣列(14)中電漿阻離框的寬度在1-30微米之間,高度在0.1-60微米之間,所述間隔粒子層(16)中的間隔粒子的大小在1-10微米之間。
- 如申請專利範圍第1項所述之一種雙層微結構的顯示電漿模組,其中,所述電漿阻離陣列(14)中的電漿阻離框及襯墊邊框(6)的材料為丙烯酸樹脂、聚氨酯樹脂、環氧樹脂、有機矽樹脂或二氧化矽;所述間隔粒子層(16)中的間隔粒子為聚合物微球或二氧化矽微球。
- 如申請專利範圍第1項所述之一種雙層微結構的顯示電漿模組,其中,所述像素電極(13)內嵌在TFT玻璃基板(7)上,且像素電極(13)與顯示電漿(3)間通過遮光絕緣膠水層(5)黏附。
- 如申請專利範圍第1項所述之一種雙層微結構的顯示電漿模組,其中,所述透明電極(1)包括覆蓋在顯示電漿(3)、襯墊邊框(6)上的導電層(2)及覆蓋在所述導電層(2)上的透明基材(15);在所述襯墊邊框(6)與導電層(2)間、在所述顯示電漿(3)邊緣與導電層(2)間均設有顯示區保護層(8)。
- 如申請專利範圍第1項所述之一種雙層微結構的顯示電漿模組,其中,所述顯示電漿(3)的厚度在2-70微米之間,且顯示電漿(3)中電泳液的黏度為100-100000厘泊,所述顯示電漿(3)中包含至少兩種不同光電性能的電泳粒子。
- 如申請專利範圍第1項所述之一種雙層微結構的顯示電漿模組,其中,所述襯墊邊框(6)內可添加支撐微球(4),所述支撐微球(4)的包括樹脂微球、玻璃微球,且支撐微球(4)的直徑為2-60微米。
- 一種雙層微結構的顯示電漿模組製造方法,其特徵是,包括如下步驟: 步驟一. 在所述像素電極(13)和/或透明電極(1)的導電層(2)上預先製備好電漿阻離陣列(14); 步驟二. 將像素電極(13)嵌入TFT玻璃基板(7)內,並將TFT玻璃基板(7)放置在點膠平臺上; 步驟三. 在像素電極(13)上點封框膠,形成襯墊邊框(6); 步驟四. 在襯墊邊框(6)內絲印顯示電漿(3)和噴塗間隔粒子,較輕的間隔粒子漂浮在顯示電漿(3)上; 步驟五. 在襯墊邊框(6)內塗覆導電銀漿(10),所述導電銀漿(10)與像素電極(13)電連接; 步驟六. 先將顯示區保護層(8)壓合在整個襯墊邊框(6)上,再將透明電極(1)壓合在襯墊邊框(6)和顯示電漿(3)上,在此過程中,大部分間隔粒子受到擠壓被轉移吸附在電漿阻離陣列(14)的電漿阻離框上,形成間隔粒子層(16),然後進行固化,所述導電銀漿(10)與透明電極(1)的導電層(2)電連接; 步驟七. 切割掉邊緣部分透明電極(1)和顯示區保護層(8),露出像素電極(13)上集成電路模塊IC(11)和柔性電路板(12)綁定的預定位置; 步驟八. 將集成電路模塊IC(11)和柔性電路板(12)均通過導電膠條黏附在像素電極(13)的邊緣; 步驟九. 將集成電路模塊IC(11)、柔性電路板(12)和導電膠條周圍通過藍膠(9)固封在像素電極(13)上,完成電子墨水顯示屏的製造。
- 如申請專利範圍第9項所述之一種雙層微結構的顯示電漿模組製造方法,其中,所述步驟一中,所述像素電極(13)表面可預先塗覆好遮光絕緣膠水層(5),所述電漿阻離陣列(14)通過印刷、塗布或點膠方式塗覆在像素電極(13)或者透明電極(1)的導電層(2)表面,再通過光固化的、熱固化或者濕氣固化,或者通過物理生長、化學生長方式實現;所述步驟三中,在所述封框膠內可預先塗覆好支撐微球(4)。
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