TWI259310B - A liquid crystal display with electro-static discharge protection - Google Patents
A liquid crystal display with electro-static discharge protection Download PDFInfo
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- TWI259310B TWI259310B TW93107172A TW93107172A TWI259310B TW I259310 B TWI259310 B TW I259310B TW 93107172 A TW93107172 A TW 93107172A TW 93107172 A TW93107172 A TW 93107172A TW I259310 B TWI259310 B TW I259310B
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- liquid crystal
- circuit ring
- display area
- crystal display
- protection circuit
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 51
- 230000001681 protective effect Effects 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 28
- 230000003068 static effect Effects 0.000 claims description 28
- 230000005611 electricity Effects 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 25
- 238000007688 edging Methods 0.000 claims description 13
- 230000007547 defect Effects 0.000 claims description 12
- 239000010409 thin film Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims 1
- 244000046052 Phaseolus vulgaris Species 0.000 claims 1
- 230000008439 repair process Effects 0.000 abstract description 14
- 238000009825 accumulation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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- Liquid Crystal (AREA)
Abstract
Description
1259310 五、發明說明（1) 【發明所屬之技術領域] 本發明是有關於一種液晶顯示面板，且特別是一種具有靜 電放電防遵功此之液晶顯示面板。 【先前技術】 在薄膜電晶體（Thin-Film Transistor ;TFT)驅動之液晶 顯示面板製作過程中，常會有靜電累積的現象產生，且由 於液晶顯示面板之需求，選用絕緣性質的玻璃基板，導致 在製作過程中產生的靜電累積量無法消除，因而容易引起 月爭電放電（Electro-Static Discharge ;ESD)的問題，造 成元件受損，並大幅降低了液晶顯示器元件之良率。 由於薄膜電晶體製作過程中，一些製程環境會產生靜電的 累積，如：化學氣相沉積（Chemical Vapor phaseBACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display panel, and more particularly to a liquid crystal display panel having electrostatic discharge prevention. [Prior Art] In the process of manufacturing a liquid crystal display panel driven by a thin film transistor (TFT), static electricity accumulation often occurs, and due to the demand of the liquid crystal display panel, a glass substrate having an insulating property is selected, resulting in The accumulation of static electricity generated during the production process cannot be eliminated, which is liable to cause problems of Electro-Static Discharge (ESD), which causes damage to components and greatly reduces the yield of liquid crystal display components. Due to the process of film transistor fabrication, some process environments generate static electricity accumulation, such as chemical vapor deposition (Chemical Vapor phase).
Deposition ;CVD)、濺鍍（sputtering)或乾式蝕刻尊電漿 相關製程。另外，還有一些於製程轉換或基板傳輸的過程 中，亦會有來自於外界的靜電產生。由於絕緣之玻璃基板 無法自行將靜電累積消除，因此，在元件與面板上之 :m:顯的電位差異，—旦發生靜電放電，瞬間 產生的局電壓或高電流則會造成元件及電路的可 (reUabUity)降低，甚至是元件及電路的永久性損X壞。 因此，靜電的防護或是靜電破壞問題之改善都 與提升產品良率的重要課題。一般而士， ” σ 予以減小或隔、絕，以達到降低靜；機：對靜電來源 -些除靜電的設備，或是於製；率，例如採用 表％條件及機台狀態上進行改Deposition; CVD), sputtering or dry etching. In addition, there are some processes in the process of process conversion or substrate transfer, as well as static electricity from the outside. Since the insulating glass substrate cannot eliminate the static electricity accumulation by itself, on the component and the panel: m: the difference in the potential difference, and the electrostatic discharge, the instantaneous local voltage or high current will cause the component and the circuit to be (reUabUity) reduces, even the permanent damage X of components and circuits. Therefore, the protection of static electricity or the improvement of electrostatic damage is an important issue to improve product yield. Generally, " σ is reduced or separated, to reduce static; machine: for static electricity sources - some static electricity removal equipment, or system; rate, for example, using table % conditions and machine state changes
1259310 五、發明說明（2) 善。但此種方法’僅能藉由對靜電來源的控制來減少靜電 之產生，仍無法完全避免靜電累積的問題，而無法完全解 決靜電放電的問題。因此，在面板之電路設計上，時^ 置一些具靜電放電防護功能之電路設計，以達到元^= 的目的。 目鈾主要應用在液晶平面顯示面板上的防護靜電放電之電 路設計，係為在面板上主動顯示區以外的周邊區域Υ設置 一環狀短路式（short-ring)的防護電路環，用以導通=散 累積於面板上顯示區内的靜電量，防止靜電的局部 避免靜電放電的產生。其中，雖然防護電路環的電阻值若 越小，則分散累積靜電之能力則越高，但卻容易造成訊號 干擾的問題。因此’現有的面板周邊防護電路環設計，對 於顯不區内的靜電累積量之分散成效仍有限。若能針對液 晶顯示面板設計一靜電放電防護成效更佳的防護電路環結 構’將相當有利於液晶顯示面板之製造。 【發明内容】 本發明之目的之一是在提供一種具靜電放電防護功能之液 晶顯示面板，並且同時擁有斷線缺陷修補之能力，使液晶 顯不面板上之靜電累積可有效地被導通分散，而降低靜電 放電的傷害；另外’更能將靜電放電防護的設計與修補線 路有效整合’以減少線路佈局對顯示區域之顯示範圍與品 質的影響。 * 根據本發明之上述目的，提出一種具靜電放電防護功能之1259310 V. Description of invention (2) Good. However, this method can only reduce the generation of static electricity by controlling the source of static electricity, and the problem of static electricity accumulation cannot be completely avoided, and the problem of electrostatic discharge cannot be completely solved. Therefore, in the circuit design of the panel, some circuit design with electrostatic discharge protection function is set to achieve the purpose of the element ^=. The uranium is mainly used in the protection of electrostatic discharge circuit design on the liquid crystal flat panel. It is a short-ring protection circuit ring for the peripheral area outside the active display area on the panel. = Accumulate the amount of static electricity in the display area on the panel to prevent static electricity from locally generating static discharge. Among them, although the resistance value of the protective circuit ring is smaller, the ability to disperse and accumulate static electricity is higher, but it is easy to cause signal interference. Therefore, the existing panel perimeter protection circuit ring design has limited effectiveness in dispersing the static electricity accumulation in the display area. If a liquid crystal display panel can be designed with a better protection against electrostatic discharge protection, the protective circuit ring structure will be quite advantageous for the manufacture of liquid crystal display panels. SUMMARY OF THE INVENTION One object of the present invention is to provide a liquid crystal display panel with an electrostatic discharge protection function, and at the same time, has the ability to repair wire breakage defects, so that the static electricity accumulation on the liquid crystal display panel can be effectively turned on and off. It reduces the damage of electrostatic discharge; in addition, it can effectively integrate the design of electrostatic discharge protection with the repair line to reduce the influence of line layout on the display range and quality of the display area. * According to the above object of the present invention, an electrostatic discharge protection function is proposed
12593101259310
五、發明說明（3) 液晶顯示面板。 至少兩條條短路 導通分散效果。 係設計為不與顯 板外緣的外部防 面板經由磨邊導 部防護電路環即 修補線路，用以 依照本發明一較 近面板外緣的位 壤繞於顯示區域 少一内部防護電 防護電 護電路 列，但 接。另 圍，較 顯示區 狀態， 積，可 分散至 外部防 而被切 外部防 路環係位 環分別與 皆位於不 外，外部 靠近面板 域以及内 以使面板 經由外部 外部防護 護電路環 除，而解 護電路環 本發明利 式防護電 其中較靠 不區域結 護電路環 角製程， 與顯示區 進行顯示 佳實施例 置，設置 之週邊。 路環，以 於較靠近 面板上的 同平面， 防護電路 外緣的位 部防護電 製造過程 防護電路 電路環與 可在顯示 除顯示區 被移除之 用在面板上顯示區域之週邊設置 路環^以達到良好的累積靜電之 近顯不區域的内部防護電路環， 構直接相連’而是利用較靠近面 ，以與顯示區域電性相連通。當 將外部防護電路環切除之後，^ 域失去電性連通性，而轉變 區域内之斷線缺陷修補。成為 ，係為在一液晶顯示面板上，靠 有至少兩條短路式防護電路環， 其中，知:路式防護電路環包含至 及至少一外部防護電路環。内部 ^示區域的外緣位置，且内部防 二貝料線路以及掃描線路交叉排 而不與顯示區域結構直接相連 環係位於内部防護電路環之外 置，且外部防護電路環係同 路環電性相通，形成—短路連通 中產生於顯示區域内的靜電累 環的電性連通特性，而同時導通 内部防護電路環之上。 面板完成後，利用磨邊導角製程 域内之短路連通狀態。並且^ ^ 後’内部防護電路環即失去與^V. Description of the invention (3) Liquid crystal display panel. At least two strips are short-circuited to conduct the dispersion effect. The external anti-panel that is not designed with the outer edge of the display panel is protected by the edging guide to protect the circuit ring, that is, the repairing circuit, for arranging the inner edge of the near-panel outer edge of the near-panel according to the invention to have less internal protective electric protection. Protect the circuit column, but connect. In addition, the state of the display area, the product can be dispersed to the external protection, and the external anti-theft ring system ring is respectively located, and the outside is close to the panel domain and the inside to enable the panel to be removed by the external external protection circuit. The protection circuit ring of the present invention is better than the non-regional protection circuit ring angle process, and the display area is displayed in a good example, and the periphery is set. a loop, so as to be closer to the same plane on the panel, a portion of the outer edge of the protection circuit, a protective circuit circuit, and a loop that can be displayed on the display area of the panel except that the display area is removed. ^ The inner guard circuit ring that achieves a good near-exposed region of the accumulated static electricity is connected directly to the 'but close to the surface to be electrically connected to the display region. When the outer guard circuit loop is removed, the ^ domain loses electrical connectivity and the breakage defect repairs in the transition region. The method is to have at least two short-circuit protection circuit rings on a liquid crystal display panel, wherein the road protection circuit ring comprises at least one external protection circuit ring. The inner edge of the inner display area, and the inner anti-two-bee line and the scan line cross-row are not directly connected to the display area structure, and the ring system is located outside the inner protective circuit ring, and the outer protective circuit ring is connected with the same way. The electrical connection is formed to form an electrical connection characteristic of the electrostatically-distributed ring generated in the display region in the short-circuit communication, and simultaneously turn on the inner protective circuit ring. After the panel is completed, the short-circuit communication state in the edging and cornering process area is utilized. And ^ ^ after the internal protection circuit ring is lost with ^
第9頁 1259310 ------ 五、發明說明（4) ::域内的電連通性，進而轉變為修 一 :對顯不區域内的線路斷 可配合雷射 其中’外部防護電路環可藉由盥資補。 通’而與顯示區域具電性連通&性。、另^或掃描線路相連 包含複數個保護元件，位於内部=外’顯示面板上更 路環之間’用以防止訊號干擾。保;】電：：與外部防護電 ，路環與顯示區域之連通路徑上Γ ^ t设叶於外部防護 環以及顯示區域電性彳 5 8可與外部防護電路 連同外部防通，並於面板磨邊導角f程： u外4防護電路環一起被移除。 ▼月表私中， ，於’應用本發明之具靜電放電防 错由複數條短路式防護液日日”、、員不面板，可 電之分散路徑，使顯示製程 護電路環於磨邊巧路，結構設計，使内部防 修補線路之功用。又月j〗 刀別具有靜電放電防護與 因此，本發明之液晶顯示面 防護功能’以有效降低 僅：有良好的靜電放電 =靜電分散路徑與修補線路；=件J2情形，更能 斷線缺陷之目Ξ 與顯示品質的情形下，另外達到修補 文藉由本發明之液晶 π 電之危害，更同時增加缺僅有效避免靜電放 不元件之產品良率與可靠度:力效，而大幅提升了顯Page 9 1259310 ------ V. Description of invention (4) :: Electrical connectivity in the domain, and then into a repair: the line break in the visible area can be matched with the laser where the 'external protection circuit ring can be borrowed Due to the supplement. It is electrically connected to the display area & , or ^ or scan line connection contains a plurality of protection components, located on the internal = outer display panel between the more loops to prevent signal interference. Guaranteed;]Electrical:: With external protective power, the connecting path between the road ring and the display area Γ ^ set the outer protective ring and the display area electrical 彳 5 8 can be externally protected with the external protective circuit, and the panel Edge grinding angle f: u The outer 4 protection circuit rings are removed together. ▼月表私中, , in the application of the invention, the electrostatic discharge prevention and error prevention by a plurality of short-circuit protection liquids, the staff does not have a panel, the electric dispersion path, so that the display process protection circuit loops in the edge Road, structural design, the function of the internal anti-repair line. Month j〗 The knife has electrostatic discharge protection and therefore, the liquid crystal display surface protection function of the present invention is effective to reduce only: there is a good electrostatic discharge = electrostatic dispersion path and Repairing the line; = the case of the piece J2, the case of the wire breakage defect and the display quality, in addition to the hazard of the liquid crystal π electric power of the present invention, and at the same time increasing the number of products which are effective only to avoid the electrostatic discharge component Yield and reliability: power efficiency, and greatly improved
12593101259310
五、發明說明（5) 【實施方式】 本發明係提供一種具V. Description of the Invention (5) [Embodiment] The present invention provides a device
Discharge ;ESD)防護 eCtr〇 — Statlc 區外緣位置，执番/力此液日日顯示面板，利用在顯示 (―-⑽性：連接的環狀短路式 果，其中，部Ρ ^ ^路壞，用以提高累積靜電的分散效 另-部份之防i電^路環設計為與顯示區域相連通，而 電路環上並設%則不與顯示區域結構相連。另外’ (guard)，以降低雷可枚防止訊號互相干擾的保護元件 形。最後，利用^衣對#顯不區内的線路訊號干擾情 通於顯示區域之!作後段之磨邊製程，即可將連 路環與顯示區内的及保護元件切除，使防護電 路環則轉變成7面板上剩下的防護電 程，用以修補二補線路（repair hne)，配合上雷射製 、 ^ ^ .、、、員不區内的線路斷線缺陷。 X下將以貝靶例對本發明之方法加以詳細說明。 實施例1 了：種具靜電放電防護效果的液晶顯示面板電 依昭本發明第刀Γ參照第1圖、第2圖與第3圖，第1圖係為 、二桊I月第—較佳實施例的液晶顯示面板之 :Ϊ2圖係為磨邊處理後的液晶顯示面板之？列 、、口構上視不忍圖，而第3圖係為第i圖之 ，護電路環部份結構放大示意圖，亦即為第 區域130内之放大示意圖。 ΰ中的虛線Discharge; ESD) Protection eCtr〇 - Statlc area outer edge position, hold the force / force this liquid day display panel, use in the display (--(10) sex: connected ring short-circuit fruit, which, part Ρ ^ ^ road bad The anti-i circuit ring used to increase the accumulated static electricity is designed to be connected to the display area, and the % of the circuit ring is not connected to the display area structure. In addition, '(guard), Reduce the shape of the protection element that prevents the signals from interfering with each other. Finally, use the line of the clothing to interfere with the line signal in the area of the display, and then use the edging process in the back section to make the link and display. The protection element in the area is cut off, so that the protection circuit ring is converted into the remaining protection circuit on the 7 panel to repair the repair line (repair hne), cooperate with the laser system, ^ ^ ., , The line breakage defect in the area. The method of the present invention will be described in detail under the example of X. Example 1: The liquid crystal display panel with the electrostatic discharge protection effect is described in the first section of the invention. 2nd and 3rd, the first picture is - The liquid crystal display panel of the preferred embodiment: the Ϊ2 image is a column of the liquid crystal display panel after the edging process, and the mouth structure is unbearable, and the third figure is the i-th figure, the protection circuit ring portion An enlarged schematic view of the structure, that is, an enlarged schematic view of the first region 130.
1259310 五'發明說明（6) 參照第1圖，在一液晶顯示面板100上，區域110係為具有 晝素陣列的顯示區，而資料線路1 0 2與掃描線路1 〇 4則交叉 控制顯示區域11 0内的各薄膜電晶體（Th i n F i 1 m Trans i stor ; TFT) 1 0 1的開關行為，以控制顯示區域11 〇内 的晝素顯示狀態。本發明於顯示區域1 1 〇外的周邊區，設 置兩條環狀短路式的防護電路環，分別為較靠近顯示區域 11 0周邊的一内部防護電路環1 06，以及較靠近面板外緣的 一外部防護電路環1 0 8。 内部防護電路環106係設計為不與顯示區域11〇内部結構直 接相連結，但與外部防護電路環1 〇 8相連接。且内部防護 電路環106分別與資料線路102，以及掃描線路1〇4交叉排 列，彼此位於不同平面.，而不相接觸。外部防護電路環 1〇8則設計為連結資料線路102或是掃描線路1〇4，而斑顯 不區域110内部相連通，使顯示區域11〇内部形 短路連 另外， ▼. 在内部防護電路％ 1 υ υ丹yp郡p太媒 皆設置有連接在每一資料線路1 〇 2戈是垃—％ 1 0 8之間 1〇4之上的保護元件⑽，帛以避免掃描線路 保護元件109係設計.為薄膜電晶體開 曰❺號干擾’ 可由兩個薄膜電晶體構成-保護元^關"曰件所組成，例如 與外部防護電路環1 〇 8相連接。 保濩7L件1 0 9並 其中，存在於顯示區域110内部的靜 曰 資料線路102以及掃描線路ι〇4，經’、積-里，即可藉由 傳送至外部防護電路環1 0 8上。並且、/兀件1 0 9而分散 ’再利用外部防護電1259310 V'Invention Description (6) Referring to FIG. 1, on a liquid crystal display panel 100, a region 110 is a display area having a pixel array, and a data line 102 and a scanning line 1 〇4 cross-control a display area. The switching behavior of each thin film transistor (Th in F i 1 m Trans i stor; TFT) 1 0 1 in 10 0 controls the display state of the pixel in the display area 11 〇. According to the present invention, two annular short-circuit protection circuit rings are disposed in the peripheral region outside the display area 1 1 , which are respectively an inner protection circuit ring 106 which is closer to the periphery of the display area 110 and closer to the outer edge of the panel. An external protective circuit ring 1 0 8. The inner guard circuit ring 106 is designed not to be directly connected to the inner structure of the display area 11 but to the outer guard circuit ring 1 〇 8. And the internal protection circuit ring 106 is arranged along the data line 102 and the scanning line 1〇4, respectively, on different planes without contact. The outer protective circuit ring 1〇8 is designed to connect the data line 102 or the scan line 1〇4, and the inside of the spot display area 110 is connected, so that the display area 11〇 is internally short-circuited, and ▼. 1 υ υ yp y y y y y y y y y y y y y y y y y y y y y y y y y y y s s s s s s s s s s s s s s s s s s s s Design. For the thin film transistor open 干扰 interference ' can be composed of two thin film transistors - protection element ^ & 曰 曰 , , , , , , , , 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The protective data line 102 and the scanning line ι4 existing in the display area 110 can be transmitted to the external protection circuit ring 1 0 8 through the ', product- . And / / 兀 1 1 9 and dispersed ‘ reuse of external protective electricity
£59310^ 五、發明說明（7) 路環1 08與内部防護電路 卷冲防痩電路環1〇6之上。 卞 < 王 車;：=乍完成時’面板周邊需進行-磨邊導角製程，則 護元：1nQ、、頁Ρ不面板100外緣的外部防護電路環108，以及保 件109即可經由磨邊導角製程，予以切除，而解除原 ::=110内的短路連通狀態。此時，面板上僅剩下 ^ 濩電路環1〇6存在於顯示區域11〇之周邊。 柘=2圖’係為經由磨邊導角製程切除後的液晶顯示面 Ρ列結構上視示意圖。其中，内部防護電路環丨〇6， 2 =外部防護電路環1〇8的移除，而失去與顯示區域11()内 ^ “性相連通的特性。此時的内部防護電路環丨〇6不再具 —刀散靜電累積的能力，而轉換成為一修補線路。 = ·、、、員示區域1 1 0内出現斷線缺陷，則可利用内部防護電路 環1 0 6進行修補。如第2圖中所示，若一資料線路2 〇 2上， 於位置201出現斷線（open)缺陷時，則將内部防護電路環 106與資料線路2〇 2於位置2 0 3以及位置2〇5，以雷射製程進 行修補’使原本不相連的内部防護電路環丨〇 6與資料線路 2〇2 ’於位置20 3與位置20 5相連結，而形成導通狀態。接 著，再將内部防護電路環106於位置2〇7及位置20 9，以雷 射進行切斷。 於是’原本傳送至資料線路202上的訊號220，仍可藉由内 部防護電路環1 0 6與資料線路2 0 2的短路連通路徑，由資料 線路2 0 2上產生斷線位置2 0 1的一端傳送至斷線位置2 〇 1的 第13頁 1259310 五、發明說明（8) 能，At二吏顯示區上出現斷線以外之其他區域的顯示狀 :綠=經由内部防護電路環1〇6形成的修補線路，而不受 U =陷的影響。另外，若是於任一掃 作佟結I 問 ^，亦能同樣藉由内部防護電路環106當 路，配合雷射進行斷線之修補。 示，第^明〃之防護電路環的實際結構，則可參照第3圖所 意圖。复圖係為第1圖中的虛線區域130之内部結構上視示 二^吉2中外部防護電路環30 8可由多層金屬層構成，例 312以月查利用顯示元件製作之閘極金屬311、源/汲極金屬 位於里素電極金屬314三層金屬共同組成，三層金屬層 而查 W面，源及極金屬31 2位於閘極金屬311上方， 此之間!!極314則又位於源/汲極金屬之上方，三層金屬彼 可大r㈤以接觸窗32〇(C〇ntact hole)互相連接。如此， 徑，二ϊ in i卜部防護電路環308供給累積靜電所分散的路 另外，而，兩對累積之靜電導通分散的成效。 成，Λ ί濩凡件3〇9(虛線所示）則由兩個薄膜電晶體所龟 及資護電路環308 ’係與面板内之掃描線路以 時：：路相連通’因此為了避免在進行面板電性檢测 二#訊號的傳送會受到外部防護電路環3〇8造成的 3〇\。\，於是，更設置了兩個薄膜電晶體作為保護元件 至於内部防護電路環30 6，則為導電性佳的單 Π :例如可直接使用源/汲極金屬312予以圖形定義出屬 顯=Γ09中的兩個薄膜電晶體係藉由閑極金屬311而與 °°或内部的資料線路或是掃描線路相連接。外部防^£59310^ V. INSTRUCTIONS (7) The road ring 1 08 and the internal protection circuit are wound over the anti-smash circuit ring 1〇6.卞<王车;:=乍 When finished, the perimeter of the panel needs to be processed - the edging and cornering process, the protector: 1nQ, the outer protective circuit ring 108 of the outer edge of the panel 100, and the security piece 109 After the edging and cornering process, the cutting is performed, and the short-circuit communication state in the original::=110 is released. At this time, only ^ 濩 circuit ring 1 〇 6 remains on the panel around the display area 11 。. The 柘=2 image is a schematic view of the liquid crystal display surface after the edging process. Wherein, the internal protection circuit ring 丨〇6, 2 = the removal of the external protection circuit ring 1〇8, and loses the characteristic of communicating with the display area 11(). At this time, the internal protection circuit ring 丨〇6 No longer has the ability to accumulate static electricity, and the conversion becomes a repair line. = ·,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 2, if there is an open defect at position 201 on a data line 2 〇 2, the inner guard circuit ring 106 and the data line 2 〇 2 are at position 2 0 3 and position 2 〇 5 Repairing with the laser process 'connects the originally unprotected internal protection circuit ring 6 and the data line 2〇2' to the position 20 3 and the position 20 5 to form a conduction state. Then, the internal protection circuit The ring 106 is cut by laser at position 2〇7 and position 20 9. Thus, the signal 220 originally transmitted to the data line 202 can still be bypassed by the internal protection circuit ring 106 and the data line 2 0 2 Short-circuit communication path, disconnection position 2 0 1 from data line 2 0 2 One end is transmitted to the disconnection position 2 〇1 on page 13 1259310 V. Description of the invention (8) Yes, the display area of the area other than the broken line on the At display area: Green = via the internal protection circuit ring 1〇 6 formed repair line, and is not affected by U = trap. In addition, if it is used in any sweeping junction I, it can also be repaired by the laser with the internal protection circuit ring 106. The actual structure of the protection circuit ring of the first embodiment can be referred to the figure of Fig. 3. The complex picture is the internal structure of the dotted line area 130 in Fig. 1 and the external protection circuit ring of the second 30 8 may be composed of a plurality of metal layers. For example, 312 is formed by using a gate metal 311 made of a display element, and a source/drain metal is formed by three layers of metal of a ruthenium electrode metal 314. The three metal layers are used to check the W surface. And the pole metal 31 2 is located above the gate metal 311, and the pole 314 is located above the source/drain metal, and the three layers of metal are large (r) connected to each other by a contact window 32〇(C〇ntact hole) In this way, the diameter of the second ini protection circuit ring 308 is supplied to the accumulation. The electrician disperses the road separately, and the effect of the two pairs of accumulated static conduction disperses. Cheng, Λ 濩 濩 濩 〇 3〇9 (shown in dashed lines) is composed of two thin film transistors and the protective circuit ring 308 ' The scanning line in the panel is connected with the following:: The road is connected. Therefore, in order to avoid the transmission of the panel electrical detection, the transmission of the ## signal will be caused by the external protection circuit ring 3〇8. Two thin film transistors are provided as protection elements for the inner protective circuit ring 30 6 , which is a single conductive material: for example, the source/drain metal 312 can be used directly to define two films in the display = Γ 09 The electro-crystalline system is connected to the internal data line or the scanning line by the idler metal 311. External defense
第14頁 1259310 ^-----^ 五'發明說明（9) ---- 電路環30 8則藉由保護元件3 0 9中的薄膜電晶體之源/汲極 :蜀w Z，而與顯示區域内部電性相連通，另外，外部防 一電路環3 〇 8又可以再藉由接觸窗g 2 〇，而利用源/汲極金 立 ’以與内部防護電路環306相連接。因此，可形成外 =防遵電路環3 〇 8、保護元件3 〇 9、内部防護電路環3 0 6與 ^不區内部電性相連通的短路結構狀態。於是，顯示區内 內積的靜電量將可同時導通分散至外部防護電路環3 0 8盥 ^ =防護電路環306之上，而更有效地減少靜電放電的情 形產生。 =製作完成後’利用面板磨邊導角之製程處 將夕卜：防護電路環308與保護元件3〇9同 ^ 内的短路連結狀態’只保留與顯示區域失去顯 ^内部防護電路環3G6，以作為修㈣路之用。連通 力外’除了上述之外部防罐φ々 叫…路設計外=環兩條 外。卩防遵電路環與面板外緣之間，再讯 園，即 部防護電路環或是顯示區域電性相連：二：：條與外 2環，以更加提高對面板顯示區c電 *上述的第-實施例中的結構設計，電：散成效。 邊的防護電路環數目，使累積靜電導=口了顯示區周 因此，可更有效地分散面板製程中二^ 9路徑增多， 大幅降低靜電放電的發生率與破壞。的#電累積量，而 另外，更藉由内部防護電路環與 構設計，使得面板在磨邊導角壤 °隻虿路裱的連結杜Page 14 1259310 ^-----^ Five 'Invention Description (9) ---- Circuit ring 30 8 by protecting the source/drain of the thin film transistor in component 309: 蜀w Z, It is electrically connected to the internal portion of the display area. In addition, the external anti-circuit circuit 3 〇8 can be connected to the internal protection circuit ring 306 by the source/drain metal via the contact window g 2 〇. Therefore, a short-circuit structure state in which the outer = anti-circuit circuit ring 3 〇 8, the protection element 3 〇 9, the inner guard circuit ring 3 0 6 and the internal electrical circuit are not formed can be formed. Therefore, the amount of static electricity accumulated in the display area can be simultaneously turned on and distributed to the outer protective circuit ring 3 0 8 盥 ^ = protective circuit ring 306, and the electrostatic discharge can be more effectively reduced. = After the completion of the manufacturing process, the process of using the panel to sharpen the lead angle will be: the protection circuit ring 308 and the protection component 3〇9 are in the same state as the short-circuit connection state, and only the display area is lost and the internal protection circuit ring 3G6 is lost. Used as a repair (four) road. Outside the connection force, except for the above-mentioned external anti-cans φ ... 路 ... road design outside = ring two.卩 遵 遵 遵 电路 电路 电路 电路 电路 电路 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵 遵The structural design in the first embodiment, electricity: scattered effect. The number of protective circuit loops on the side makes the cumulative electrostatic conduction = port display area. Therefore, the number of paths in the panel process can be more effectively dispersed, and the incidence and damage of electrostatic discharge are greatly reduced. The electric accumulating amount, and in addition, the internal protective circuit ring and structure design, so that the panel is in the edge of the edging.
第15頁 進行時，即可直接因： 1259310Page 15 When proceeding, it can be directly caused by: 1259310
、内部防護電路環與 成一完整的顯示面板 除外部防護電路環，而同時解除外部 顯不區域内元件的短路連通狀態，6 元件。 70 且面板經由磨邊處理後，與 防護電路環則轉變成為一修 的斷線缺陷。不僅另外達到 了需在面板上再額外設置修 據較多的面板佈局（1 a y 〇 u t) 區域面積。 顯不區失去電性連通態的内部 補線路，可用來修補顯示區内 修補缺陷的目的，更因而節省 補線路的空間，避免造成因佔 空間，而減少了實際可顯示的 實施例2 本發明揭露了另一種具靜電放電防護效果的液晶顯示面板 電路結構設計。利用三條防護電路環設置於顯示區周邊， 而同時達到更佳的靜電分散效果與斷線修補作用。 參照第4圖，第4圖係為依照本發明第二較佳實施例的液晶 顯示面板之陣列結構上視示意圖，如同第一實施例的設 計，在一液晶顯示面板4 〇 〇上，區域41 〇係為具有晝素陣列 的顯示區，而資料線路4 〇 2與掃描線路4 〇 4則交叉控制顯示 區域4 1 0内的各晝素顯示狀態。本發明於顯示區域4丨〇外的 周邊區’設置三條環狀短路式的防護電路環，分別為較靠 近顯示區域410周邊的一内部防護電路環406，以及較靠近 面板外緣的一外部防護電路環408，同時，還有介於外部 防護電路環4 0 8與内部防護電路環4 0 6之間的另一條内部防 護電路環40 7。其中，外部防護電路環408係同樣設計為連The internal protective circuit ring and a complete display panel except for the external protective circuit ring, while releasing the short-circuit communication state of the components in the external display area, 6 components. 70 After the panel has been edging, the protective circuit loop is transformed into a repaired wire break defect. Not only does it additionally require an additional panel layout (1 a y 〇 u t) area to be additionally set on the panel. The internal compensation circuit that loses the electrical connectivity state in the display area can be used for repairing the defect of repairing defects in the display area, thereby saving space for replenishing the line, and avoiding the fact that the space is occupied, and the actual display can be reduced. Another circuit structure design of a liquid crystal display panel with electrostatic discharge protection effect is disclosed. Three protective circuit rings are used to set around the display area, and at the same time, better electrostatic dispersion effect and wire break repair effect are achieved. Referring to FIG. 4, FIG. 4 is a top plan view showing an array structure of a liquid crystal display panel according to a second preferred embodiment of the present invention. As in the design of the first embodiment, on a liquid crystal display panel 4, a region 41 The lanthanum is a display area having a pixel array, and the data line 4 〇 2 and the scanning line 4 〇 4 cross-control the display state of each pixel in the display area 4 1 0 . The present invention provides three annular short-circuit protection circuit rings in the peripheral region of the display area 4, which are an inner protective circuit ring 406 which is closer to the periphery of the display area 410, and an external protection closer to the outer edge of the panel. The circuit ring 408, along with another internal guard circuit ring 40 7 between the outer guard circuit ring 408 and the inner guard circuit ring 406. Among them, the outer protective circuit ring 408 is also designed to be connected
第16頁 1259310 五、發明說明（11) 結資料線路402或是掃描線路404，而與顯示區域4 10之内 口 P電〖生相連通’但内部防護電路環4 〇 6以及内部防護電路 環4 0 7 ’則皆設計為不與顯示區域4 1 〇之内部結構相連通。 另外，在外部防護電路環4〇8與内部防護電路環4〇7之間， 則設置有連接在每一資料線路4〇2或是連接每一掃描線路 4〇 t之上的保護元件409，用以保護線路之間的訊號干擾， 保護元件40 9係設計為由兩個薄膜電晶體所構成。其中， =蒦元件40 9分別與外部防護電路環4〇8，以及顯示區域 次粗内^成電陡連通狀恶，可防止外部防護電路環4 0 8對於 貝士枓線路402，或是掃描線路404造成傳輪訊號干擾。同 日守，外部防護電路環408亦設計為分別獨立電性連通至 1防護電路環4〇7與内部防護電路環4〇6，但部 環4^)7與内部防護電路環4〇6，則彼此互不相連I ^ ，存在於顯示區域410内部的靜電累積量，即可 二，線路402以及掃描線路404，而同時分散傳至外曰 電路裱408、内部防護電路環4〇6以及另 破 407之上。 乂及另—内部防護電路環 最後，當面板製作完成時，則如同第一本 磨邊導角製程，將靠近面板外緣的外部防護電\用面板 及保護元件40 9切除，而解除與顯示區域4 々 Μ 結狀態。同時，内部防護電路環4 〇 6乃 '、i路連 4〇7亦因而失去與顯示區域41〇 部防護電路環 |王逯通性。 原本的内部防護電路環40 6以及内部防 過磨邊導角製程後，皆轉變成為兩條^^路王衣407 ’在經 刃條修補線路，配合雷射Page 16 1259310 V. Description of the Invention (11) The junction data line 402 or the scan line 404 is electrically connected to the internal port P of the display area 4 10 but the internal protection circuit ring 4 〇 6 and the internal protection circuit ring 4 0 7 ' is designed not to communicate with the internal structure of the display area 4 1 。. In addition, between the external protection circuit ring 4〇8 and the internal protection circuit ring 4〇7, there is provided a protection element 409 connected to each data line 4〇2 or connected to each scanning line 4〇t. To protect the signal interference between the lines, the protection element 40 9 is designed to be composed of two thin film transistors. Wherein, the =蒦 element 40 9 and the external protection circuit ring 4〇8, respectively, and the display area sub-thickness are electrically connected to each other, and the external protection circuit ring 408 can be prevented from being scanned for the Bass line 402 or Line 404 causes a transmission signal interference. On the same day, the external protection circuit ring 408 is also designed to be independently electrically connected to the 1 protection circuit ring 4〇7 and the internal protection circuit ring 4〇6, but the part ring 4^)7 and the internal protection circuit ring 4〇6, Disconnected from each other I ^ , the amount of static electricity existing inside the display area 410, that is, the line 402 and the scanning line 404, while being dispersed to the external circuit 裱 408, the internal protection circuit ring 4 〇 6 and another broken Above 407.乂 另 另 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部 内部Area 4 々Μ state. At the same time, the internal protection circuit ring 4 〇 6 is ', i road connection 4 〇 7 and thus loses the display area 41 防护 partial protection circuit ring | After the original internal protective circuit ring 40 6 and the internal anti-wearing edge lead angle process, they are transformed into two ^^路王衣407's in the blade repair line, with the laser
1259310 五、發明說明（12) 修補製程，如同筮—與饮你丨的古， 部的斷線缺陷進二γ例的方式’可對顯示區卿内 =第：::;J : ;: ;了實：、结構，則如同第-實 如可直接利用ηΓ 由多層金屬層構成，例 二戶全屬J£ π /極金屬、源/汲極金屬以及畫素電極金屬 接：；；二層金屬r於不同平面，而彼此之 之靜電導通分今的t目連接，以增加外部防護電路環對累積 用源/汲極金屬"！成效、。另外，内部防護電路環4〇β可利 素電極金屬製作1形乍成形成，㊉内部防護電路環術則利用晝 累積二電之分散1 4，藉由防護電路環的數量增加，使 分散成效，達到ρ =而更有效地提高了累積靜電之 條内部防護電路严電放電防護效果。另外，藉由兩 為修補線路的電路環‘ u磨=製程後’可保留並轉換 示區域内之線@ 9 ，因而亦將更加有助於對顯 際成效。路I線缺陷進行修補，而提升缺陷修補的實 由上述本發明之竇始Μ 1Λ 有良好靜電放電防護功能二本：：之：j 7得1 示器元件的產品良率盥可靠:曰曰顯不面板，而大幅提昇顯 在不影響-般顯示面板之f:。t應用本發明之方法，可 的防護電路環結構。不：：:處；果，以及t補線路之功能 惶θ加靜電放電防護電路環之數 弟18 1259310 五、發明說明（13) 量，使靜電分散之成效提升，有效降低元件受損情形，更 可將靜電放電防護與修補線路結合，而在不影響顯示區域 内的佈局空間與顯示特性之條件下，同時達到顯示元件製 造良率與可靠度提升之成效。 雖然本發明已以實施例揭露如上，然其並非用以限定本發 明，任何熟習此技藝者，在不脫離本發明之精神和範圍 内，當可作各種之更動與修飾，因此本發明之保護範圍當 視後附之申請專利範圍所界定者為準。1259310 V. Description of invention (12) Repairing the process, like 筮 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮 饮Real:, structure, as the first - the actual can be directly used η Γ composed of multiple layers of metal, the case of the two are all J J π / polar metal, source / bungee metal and pixel electrode metal:;; The metal r is in different planes, and the electrostatic conduction between each other is connected to the t mesh in order to increase the external protection circuit ring pair accumulation source / drain metal "! Results, In addition, the internal protection circuit ring 4 〇β 可素素 metal is made into a 1-shaped 乍, and the internal internal protection circuit is 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 , , reaching ρ = more effectively improves the protective effect of the internal protection circuit of the accumulated static electricity strip. In addition, the circuit ring @ u 磨 = after the process can be reserved and converted to the line @ 9 in the display area, which will also contribute to the effectiveness of the display. The defect of the line I line is repaired, and the repair of the defect is improved. The above-mentioned sinus Μ 1Λ of the present invention has a good electrostatic discharge protection function::: j 7 has 1 product yield of the indicator element: reliable: The panel is not displayed, and the significant increase does not affect the f: display panel. Applying the method of the present invention, it is possible to protect the circuit ring structure. No:::; fruit, and the function of the t-compensation line 惶 θ plus the number of the electrostatic discharge protection circuit ring 18 1259310 5, invention description (13) quantity, so that the effectiveness of static dispersion is improved, effectively reducing the damage of components, The electrostatic discharge protection can be combined with the repairing circuit, and the effect of improving the manufacturing yield and reliability of the display component can be achieved without affecting the layout space and display characteristics in the display area. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope is subject to the definition of the scope of the patent application attached.
第19頁 1259310 圖式簡單說明 為讓本發明之上述特徵、方法、目的及優點能更明顯易 懂，配合所附圖式，加以說明如下： 第1圖係為依照本發明第一較佳實施例的液晶顯示面板之 陣列結構上視示意圖； 第2圖係為依照本發明第一較佳實施例，經磨邊處理後的 液晶顯示面板之陣列結構上視示意圖； 第3圖係為依照本發明第一較佳實施例的防護電路環部份 結構放大示意圖；以及 第4圖係為依照本發明第二較佳實施例的液晶顯示面板之 陣列結構上視示意圖。 【元件代表符號簡單說明】 100、400:顯示面板 101: 1 0 2、2 0 2、4 0 2 ·•資料線路 1 0 4、2 0 4、4 0 4 :掃描線路 106、3 0 6、406、407 :内部防護電路環 108、 3 08、4 08 ·•外部防護電路環 109、 30 9、40 9 :保護元件 110、 410:區域 130 201 、203 > 205 ^ 207 ^ 209 ：位置 2 2 0 :訊號 311 3ί2 :源/汲極金屬 314 3 2 0 :接觸窗口 體 晶 ^、frn ^Q 膜 薄 域 區 線 虛Page 19 1259310 BRIEF DESCRIPTION OF THE DRAWINGS The above features, methods, objects and advantages of the present invention will become more apparent and understood. FIG. 2 is a schematic top view of an array structure of a liquid crystal display panel after edging according to a first preferred embodiment of the present invention; FIG. 3 is a schematic view of the array structure of the liquid crystal display panel according to the first preferred embodiment of the present invention; FIG. 4 is a schematic top view showing an array structure of a liquid crystal display panel according to a second preferred embodiment of the present invention. FIG. [Simplified description of component symbol] 100, 400: Display panel 101: 1 0 2, 2 0 2, 4 0 2 ·• Data line 1 0 4, 2 0 4, 4 0 4 : Scanning line 106, 3 0 6 406, 407: internal protection circuit ring 108, 3 08, 4 08 · external protection circuit ring 109, 30 9, 40 9 : protection element 110, 410: area 130 201, 203 > 205 ^ 207 ^ 209: position 2 2 0 : Signal 311 3ί2 : Source/drain metal 314 3 2 0 : Contact window body crystal ^, frn ^Q film thin domain line virtual
屬極 極素 a91、 *dulsl JBIVery extreme a91, *dulsl JBI
第20頁Page 20
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| TW93107172A TWI259310B (en) | 2004-03-17 | 2004-03-17 | A liquid crystal display with electro-static discharge protection |
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| TW93107172A TWI259310B (en) | 2004-03-17 | 2004-03-17 | A liquid crystal display with electro-static discharge protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI400785B (en) * | 2007-07-12 | 2013-07-01 | Chunghwa Picture Tubes Ltd | Active devices array substrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI342611B (en) | 2007-08-14 | 2011-05-21 | Chunghwa Picture Tubes Ltd | Active device array substrate |
| TWI518428B (en) | 2011-05-02 | 2016-01-21 | 元太科技工業股份有限公司 | Display device and display array substrate |
| KR102113607B1 (en) | 2013-08-30 | 2020-05-21 | 엘지디스플레이 주식회사 | Liquid crystal display device and method of fabricating the same |
| CN111856825B (en) * | 2020-07-28 | 2023-10-20 | 京东方科技集团股份有限公司 | Array substrate, preparation method thereof, display panel and display device |
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| TWI400785B (en) * | 2007-07-12 | 2013-07-01 | Chunghwa Picture Tubes Ltd | Active devices array substrate |
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