TW552449B - Multi-domain aligned liquid crystal display with bump structure - Google Patents

Multi-domain aligned liquid crystal display with bump structure Download PDF

Info

Publication number
TW552449B
TW552449B TW88108053A TW88108053A TW552449B TW 552449 B TW552449 B TW 552449B TW 88108053 A TW88108053 A TW 88108053A TW 88108053 A TW88108053 A TW 88108053A TW 552449 B TW552449 B TW 552449B
Authority
TW
Taiwan
Prior art keywords
patent application
scope
item
pair
liquid crystal
Prior art date
Application number
TW88108053A
Other languages
Chinese (zh)
Inventor
Hung-Da Liou
Original Assignee
Ind Tech Res Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW88108053A priority Critical patent/TW552449B/en
Application granted granted Critical
Publication of TW552449B publication Critical patent/TW552449B/en

Links

Landscapes

  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)

Abstract

The invention contains the followings: a pair of polarization plates composed of the starting polarizer and the detecting polarizer; a pair of transparent substrates located inside the pair of polarization plates; and a compensator located inside the polarizer. A bump structure is formed on the substrate; and the alignment film is vertically arranged on the bump structure and the substrate. The liquid crystal molecules having large pre-tilted angle are formed on the alignment film of the bump structure having the pre-tilted direction. The bump structure is formed on at least one of the paired transparent substrates to provide a pre-tilted angle for the liquid crystal molecules filled in between the paired glass substrates.

Description

552449 Λ' B1 經濟部智慧財產局員工消費合作社印製 五、發明説明( 發明领诚: 本發明與一種製造液晶顯示器(LCD )有關,特別是 一種具有凸起結構之廣視角LCD。 發明背畺: 最近電腦記事薄(personal data assistant ; pda)和筆 記型電腦有顯著性的進步,彳攜帶式顯示器的要求為重量 輕和低功率消耗,薄膜電晶體_液晶顯示器(TFT吨CD)能 滿足上述要求且已知其需要高像素密度和高品質。一般 T^-LCD包括一薄膜電晶體和像素電極所形成之底板及具 a色心光片之頂板。液晶乃充填在頂板和底板之。 =像Γ,提供了一電容器,藉…作為單位像素 之開關兀件。操作時施加一閘極信號電壓到TF丁上 是每個單位像素之開關元件上,g TF丁接收了閘極作號; 壓後會開啟,因而攜帶影像資訊之資料電壓可經由TFTb而552449 Λ 'B1 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the Invention (Invention Leadership: This invention is related to the manufacture of a liquid crystal display (LCD), especially a wide viewing angle LCD with a raised structure. Invention Backward : Recently, personal data assistant (PDA) and notebook computers have made significant progress. The requirements for portable displays are light weight and low power consumption. Thin film transistor _ liquid crystal display (TFT ton CD) can meet the above requirements. It is required and known that it needs high pixel density and high quality. Generally T ^ -LCD includes a bottom plate formed by a thin film transistor and a pixel electrode, and a top plate with an a-color luminescent sheet. The liquid crystal is filled in the top plate and the bottom plate. = Like Γ, a capacitor is provided, which is used as the switching element of the unit pixel. A gate signal voltage is applied to the switching element of each unit pixel on TF D during operation, and g TF D receives the gate as the number; It will open after pressing, so the data voltage of the image information can be transmitted through the TFTb.

加到相對應之像素電極和液晶上。當資料電壓加到TFT 上,液晶分子之排列會有所改變,因而也改變了1光風 性並顯示出影像。 〃子苛 一般來說,視角和色彩表現是設計LCD時的重要議 題。彩色濾光片纟LCD中的應用是用來顯示螢幕的彩色呷 份,LCD技術上的趨勢之一是在改善其視角,然而咖視 本紙張尺度適用中國國家標準(CNS ) _IT線 (請先閱讀背面之注意事項再填寫本頁) : 552449 Μ Β7 五、發明説明() 角和對比值上的問題仍然使得其無法應用在大面積顯示 器。K.Ohmuro等人提出一篇關於垂直配列型(vertical-alignment-mode ) LCD 之文章(參閱 SID,97 DIGEST p.845〜p.848 )。參考文獻中,具有光學補償(optical compensation )和最佳化區域分割(domain-divided )結構 之垂直配列型 LCD ( vertically aligned LCD ; VA-LCD )的 應用已被實現,這種垂直配列型LCD具有超過70度的視 角、快速的反應時間(小於2 5毫秒)、和超過3 〇 〇的對比 值,然而它仍然有些缺點,例如形成二區域結構(tw卜 domain structinre )需要一複雜且昂貴的罩幕磨擦過程(mask rubbing process ),罩幕磨擦過程也會造成靜電放電 (Electrostatic Discharge; ESD)和微粒(particle)的問 通’而且罩幕磨擦過程也會導致影像的殘影(丨^^# sticking) 〇 發明目的及概述 本發明的目的為提供一種具有廣視角之LCD。 本發明的另一目的是提供LCD元件中的凸起結構(bump structure )’以提供液晶分子的預傾角(pre_titled angle )。 :--Β-----------訂 (請先閲讀背面之注意事項再填寫本頁) 線 經濟部智慧財產局員工消費合作社印製 本發明包含由起偏振器與檢偏振器組成的一對偏光 板’ 一對透明基板形成於該對偏光板上,一補償膜 (compensator)形成於檢偏振器之上。一凸起結構形成於 552449 A7 B7 五、發明説明() (請先閲讀背面之注意事項再填寫本頁) 基板之上,具有大角度預傾角的液晶分子形成於具有預傾 斜方向的凸起結構之上,上述之凸起結構位於該對透明基 板之至少一片上,以提供填充於該對玻璃基板之間的液晶 分子的一預傾角,其中該凸起結構包含傾斜面,且該凸起 結構兩端的高度不同,而配向膜形成於該對玻璃基板和該 凸起結構之上。 aa式簡箪說明’· 本發明的前述觀點及許多伴隨的優點如參考下面之詳 細敘述並結合附圖之後將更加容易了解,其中: 第一圖為本發明中LCD的截面圖。 第二圖為本發明中LCD的俯視圖。 第三圖為本發明中LCD的側視圖。 第四圖為本發明中凸起結構的圖解。 經濟部智慧財產局員工消費合作社印製 圖五A至圖六B為本發明中具有凸起結構之LCD的截 面圖。 第七圖至第九圖為本發明中基板的截面圖和第一例中 形成凸起結構方法一之步驟。 本紙張X度適用中國國家標準(CNS ) A4規格(210X 297公釐)Add to the corresponding pixel electrode and liquid crystal. When the data voltage is applied to the TFT, the arrangement of the liquid crystal molecules will be changed, which will change the light characteristics and display the image. Cripples In general, viewing angle and color performance are important issues when designing LCDs. The application of color filters and LCDs is to display the color content of the screen. One of the trends in LCD technology is to improve its viewing angle. However, the paper standard is based on the Chinese National Standard (CNS) _IT line (please first Read the notes on the back and fill out this page): 552449 Μ Β7 V. Description of the invention () The problems with the angle and contrast value still make it unsuitable for large area displays. K. Ohmuro et al. Presented an article on vertical-alignment-mode LCDs (see SID, 97 DIGEST p.845 ~ p.848). In the reference, the application of vertically aligned LCD (VA-LCD) with optical compensation and optimized domain-divided structure has been implemented. This type of vertically aligned LCD has A viewing angle of more than 70 degrees, a fast response time (less than 25 milliseconds), and a contrast value of more than 3,000, however, it still has some disadvantages, such as the need for a complex and expensive mask to form a two-domain structure. The mask rubbing process (mask rubbing process), the mask rubbing process will also cause the electrostatic discharge (ESD) and particles (particles) to communicate with each other, and the mask rubbing process will also cause image afterimages (丨 ^^ # OBJECTS AND SUMMARY OF THE INVENTION The object of the present invention is to provide an LCD with a wide viewing angle. Another object of the present invention is to provide a bump structure 'in an LCD element to provide a pre-titled angle of liquid crystal molecules. : --B ----------- Order (Please read the notes on the back before filling this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Wire Economy The present invention includes a polarizer and a polarization detector A pair of polarizing plates composed of a polarizer, a pair of transparent substrates are formed on the pair of polarizing plates, and a compensator is formed on the polarizer. A convex structure is formed in 552449 A7 B7 5. Description of the invention () (Please read the precautions on the back before filling this page) On the substrate, liquid crystal molecules with a large angle pretilt are formed in a convex structure with a pretilt direction Above, the above protruding structure is located on at least one piece of the pair of transparent substrates to provide a pretilt angle of the liquid crystal molecules filled between the pair of glass substrates, wherein the protruding structure includes an inclined surface, and the protruding structure The heights at the two ends are different, and the alignment film is formed on the pair of glass substrates and the raised structure. Brief description of formula aa 'The foregoing viewpoints of the present invention and many accompanying advantages will be easier to understand after referring to the following detailed descriptions in conjunction with the drawings, where: The first figure is a cross-sectional view of an LCD in the present invention. The second figure is a top view of the LCD in the present invention. The third figure is a side view of the LCD in the present invention. The fourth figure is an illustration of a raised structure in the present invention. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Figures 5A to 6B are cross-sectional views of LCDs with raised structures in the present invention. The seventh to ninth figures are sectional views of a substrate in the present invention and a step of a method 1 of forming a bump structure in the first example. The X degree of this paper applies the Chinese National Standard (CNS) A4 specification (210X 297 mm)

Claims (1)

552449 A8 B8 C8 D8 申请專利範国 不同高度形成的側面,使得上述凸起結構傾向一預設 方向’其中上述傾斜面的端點分別與該側面互相連接。6 .如申請專利範圍第1項所述之結構,其中上述之配向 膜為聚亞醯胺(polyimide)或polyimic acid等材質。 7·如申請專利範圍第1項所述之結構,其中上述之偏光 板是由一起偏振器和一檢偏振器所組成。 8·如申請專利範圍第1項所述之結構,其中上述之液晶 分子為垂直配列型,且一個像素中分為兩區域和這兩者的 重疊區域。 y.如申請專利範圍第8項所述之結構,其中上述重疊區 域中液晶分子的傾斜方向(方向角),相對於雙域中液晶 分子的傾斜方向在基板的投影量,具有一大於或小於9〇度 的角度。 X (讀先聞讀背面之注意事項再填寫本頁)552449 A8 B8 C8 D8 Patent application countries Sides formed at different heights make the above convex structure tend to a preset direction 'wherein the endpoints of the above inclined surfaces are connected to the side respectively. 6. The structure as described in item 1 of the scope of patent application, wherein the alignment film is made of polyimide or polyimic acid. 7. The structure according to item 1 of the scope of patent application, wherein the above-mentioned polarizing plate is composed of a polarizer and a polarizer. 8. The structure according to item 1 of the scope of patent application, wherein the above-mentioned liquid crystal molecules are of a vertical alignment type, and one pixel is divided into two regions and an overlapping region of the two. y. The structure according to item 8 of the scope of the patent application, wherein the tilt direction (direction angle) of the liquid crystal molecules in the overlapping region has a projection amount on the substrate with respect to the tilt direction of the liquid crystal molecules in the dual domain, which is greater than or less than 90 degree angle. X (Read the notes on the back and then fill out this page) 訂 經濟部智慧財是局員工消費合作社印製 1 〇· —液晶顯示器的結構,該結構至少包含: 一對偏光板; 一或負數個補償膜(compensator )形成於該對偏光板 之其中一片上或兩片内側; 一對透明基板形成於該補償膜和該對偏光板之另外一 片上; 形成 凸起結構於該對透明基板之至少一片上,以提 14 衣紙張尺度適用中國國家擦準(CNS ) A4規格(210X297公釐) 輝 552449 A8 B8 C8 、申請專利範国 1、填充於該對玻璃基板之間的液晶分子一預傾角; 中其中上述之凸起結構至少包含傾斜面’且該凸起結構 第端的第一高度不同於第二端的第二高度;且 形成一配向膜於該對透明基板和該凸起結構之上。 1 1 ·如申請專利範圍第1 〇項所述之結構,其中上述之 起結構$ ,卜—人,, 傅主少包含側面。 12·如申請專利範圍第10項所述之結構,其中上述之配 、為 4 亞酿胺或 polyimide acid。 f請先閎讀背面之注意事項再填寫本頁)The Ministry of Economic Affairs ’Smart Money is a structure printed by the Bureau ’s consumer cooperatives. The structure of the LCD includes at least: a pair of polarizing plates; one or negative compensators are formed on one of the pair of polarizing plates. Or two inner sides; a pair of transparent substrates are formed on the other one of the compensation film and the pair of polarizing plates; a convex structure is formed on at least one of the pair of transparent substrates, in order to improve the size of the paper and apply to the Chinese national standard CNS) A4 specification (210X297 mm) Hui 552449 A8 B8 C8, patent application country 1, a pretilt angle of liquid crystal molecules filled between the pair of glass substrates; wherein the above-mentioned convex structure includes at least an inclined surface 'and the The first height of the first end of the raised structure is different from the second height of the second end; and an alignment film is formed on the pair of transparent substrates and the raised structure. 1 1 · The structure as described in item 10 of the scope of patent application, wherein the above structure $, bu-ren, and Fuzhu rarely include sides. 12. The structure as described in item 10 of the scope of patent application, wherein the above formula is 4 methylene amine or polyimide acid. f Please read the notes on the back before filling in this page) 經濟部智慧財局員工消費合作社印製 13·如申請專利範圍第10項所述之結構,其中上述之偏 光板是由一起偏振器和一檢偏振器所組成。 14·如申請專利範圍第10項所述之結構,其中上述之 日日刀子為垂直配列型,且一個像素中分為兩區域和這兩 者的重疊區域。 1 5 ·如申請專利範圍第1 4項所述之結構,其中上述重叠 區域中液晶分子的傾斜方向(方向角),相對於雙域中液 曰曰"刀子的傾斜方向在基板之投影量,具有一大於或小於9〇 度的角度。 ^ 1 6.如申請專利範圍第1 0項所述之結構,其中係使用 光罩來形成該凸起結構,該光罩至少包含兩互為鏡像對 稱 訂 15 仏張尺 < 相 552449 鉍 C8 D8 六、申請專利範圍 的主要部份,光罩的開口寬度由中心部份向邊緣部份增 加,且相鄰兩開口的距離由中心部份向邊緣部份減少。 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財是局员工消費合作社印製 I紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐)Printed by the Consumer Cooperatives of the Smart Finance Bureau of the Ministry of Economic Affairs 13. The structure described in item 10 of the scope of patent application, wherein the above-mentioned polarizer is composed of a polarizer and a polarizer. 14. The structure as described in item 10 of the scope of patent application, wherein the above-mentioned day-to-day knives are of a vertical arrangement type, and a pixel is divided into two regions and the overlapping region of the two. 1 5 · The structure as described in item 14 of the scope of patent application, wherein the tilt direction (direction angle) of the liquid crystal molecules in the overlapping area is relative to the projection amount of the tilt direction of the knife on the substrate with respect to the liquid in the dual domain , With an angle greater than or less than 90 degrees. ^ 1 6. The structure described in item 10 of the scope of patent application, wherein the convex structure is formed by using a photomask, the photomask includes at least two mirrors symmetrically ordered 15 15 ruler < phase 552449 bismuth C8 D8 6. For the main part of the patent application scope, the opening width of the photomask increases from the center part to the edge part, and the distance between two adjacent openings decreases from the center part to the edge part. (Please read the precautions on the back before filling out this page) Printed by the Ministry of Economic Affairs ’Smart Consumer Finance Bureau ’s Consumer Cooperatives I Paper size applies to China National Standard (CNS) A4 (210X297 mm)
TW88108053A 1999-05-18 1999-05-18 Multi-domain aligned liquid crystal display with bump structure TW552449B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW88108053A TW552449B (en) 1999-05-18 1999-05-18 Multi-domain aligned liquid crystal display with bump structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW88108053A TW552449B (en) 1999-05-18 1999-05-18 Multi-domain aligned liquid crystal display with bump structure

Publications (1)

Publication Number Publication Date
TW552449B true TW552449B (en) 2003-09-11

Family

ID=31713335

Family Applications (1)

Application Number Title Priority Date Filing Date
TW88108053A TW552449B (en) 1999-05-18 1999-05-18 Multi-domain aligned liquid crystal display with bump structure

Country Status (1)

Country Link
TW (1) TW552449B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7876410B2 (en) 2005-10-28 2011-01-25 Chimei Innolux Corporation Multi-domain vertically aligned liquid crystal display having a plurality of jagged and non-jagged slits
US8102493B2 (en) 2004-10-29 2012-01-24 Chimei Innolux Corporation Multi-domain vertically aligned liquid crystal display
CN112596305A (en) * 2020-12-10 2021-04-02 惠科股份有限公司 Liquid crystal panel and production control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8102493B2 (en) 2004-10-29 2012-01-24 Chimei Innolux Corporation Multi-domain vertically aligned liquid crystal display
US7876410B2 (en) 2005-10-28 2011-01-25 Chimei Innolux Corporation Multi-domain vertically aligned liquid crystal display having a plurality of jagged and non-jagged slits
CN112596305A (en) * 2020-12-10 2021-04-02 惠科股份有限公司 Liquid crystal panel and production control method thereof

Similar Documents

Publication Publication Date Title
TW393585B (en) Liquid crystal display
JP3885122B2 (en) High aperture ratio and high transmittance liquid crystal display device from which color shift is removed
US6577368B1 (en) IPS-LCD having a third electrode having aperture and formed on counter substrate
TW457387B (en) Liquid crystal display having wide viewing angle
JP3906439B2 (en) Vertical alignment liquid crystal display device with multiple domains
TW436655B (en) Method of producing two domains within a liquid crystal layer, and liquid crystal display device and method of manufacturing the same
US7489376B2 (en) Liquid crystal display device and electronic apparatus
US7995887B2 (en) Liquid crystal display device and electronic device using the same
US20080062358A1 (en) Liquid crystal panel and liquid crystal display
Yu et al. Intensifying the density of a horizontal electric field to improve light efficiency in a fringe-field switching liquid crystal display
JPWO2005111708A1 (en) Liquid crystal display device and electronic apparatus including the same
JP2010282037A (en) Liquid crystal display device
US7528894B2 (en) LCD having storage capacitor electrodes with wider portions located within triangular areas of pixel regions and with spacers disposed in regions corresponding to the triangular areas to mitigate dark-state light leakage
US7180561B2 (en) Liquid crystal display device
JPH06258649A (en) Electrode structure of liquid crystal display device
US20050078253A1 (en) Liquid crystal display and thin film transistor array panel therefor
US20050151907A1 (en) Liquid crystal display device and electronic apparatus
JP4447484B2 (en) Liquid crystal display
TW552449B (en) Multi-domain aligned liquid crystal display with bump structure
TWI281560B (en) Arrangement structure of liquid crystal display device
TW548462B (en) Liquid crystal display device
TW499615B (en) Liquid crystal display device
WO2012090838A1 (en) Liquid-crystal panel and liquid-crystal display
US6628360B2 (en) Liquid crystal display device including liquid crystal layer having liquid crystal molecules homogeneously aligned
TW496986B (en) Liquid crystal display device

Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MK4A Expiration of patent term of an invention patent