1230296 玖、發明說明： 【發明所屬之技術領域】 本發明係提供一種液晶顯示面板測試裝置及方法，尤 指一種經由比對標準規格之數值，可自動進行液晶顯示面 板相位的調整及測試，以使該液晶顯示面板符合需求，達 到快速檢測之目的。 【先前技術】 一般而言’液晶顯示面板係以液晶分子材料為基本要 素’將白濁的液晶分子夾在經過配向處理的兩片玻璃板之 間’即可組合成目前熱門而且與我們日常生活息息相關的 液晶單體。 由於液晶分子介於固態與液態之間，不但具有液體易 受外力作用而流動的特性，亦具有晶體特有的光學異方向 性質’所以能夠利用外加電場來驅使液晶的排列狀態改變 至其他指向，造成光線穿透液晶層時的光學特性發生改 變’此即是利用外加的電場來產生光的調變現象，稱之為 液晶的光電效應。利用此效應可製作出各式的液晶顯示面 板’如扭轉向列型（TN-TwistedNematic)液晶顯示面板、 超扭轉向列型（STN—SuperTN)液晶顯示面板、及薄膜電 晶體（TFT-Thin Film Transistor)液晶顯示面板等。 請參閱圖一所示，其係為液晶顯示面板的結構示意 圖’液晶顯示面板1依序由一第一偏光板1〇、一第一位相 差板11、一液晶單體12、一第二位相差板13及一第二偏 1230296 光板14所組成，其中當第一偏光板10的角度為9〇度時， 第一偏光板14的角度為0度’反之亦然’並藉旋轉調整第 一位相差板11與第二位相差板13之相位，以改善位相差 板對液晶單體12及偏光板光學特性的補償條件，以獲得較 大的視角。 習用的調整方式，皆使用人工校調的方式，去旋轉調 整第一位相差板11與第二位相差板13之相位，以符合所 舄的數值’或是更換不同的位相差板再進行人工校調，以 符合所需的數值。 综觀以上所述，習用之液晶顯示面板測試方法，至少 存在以下缺點： 、使用人工校調的方式調整位相差板之相位，校調精準 度不佳，無法確保校調品質。 二、 使用人工校調的方式調整位相差板之相位，耗費人力 資源，提高生產成本，降低市場競爭力。 三、 使用人工校調的方式調整位相差板之相位，其重現性 不佳’無法確保每次校_客贿件—致，進塑 校調品質及產品的再現性。 曰 四 使用人工校調的方式調整位相差板之相位 化一貫作業，因叫低生產效能。 ’無法自動 【發明内容】 if 術之敎’本㈣之主要目的在於提供 種液曰曰知面板測試裝置及方法，可提高測試的精準 1230296 度，以確保液晶顯示面板的品質。 本發明的次要目地在於提供一種液晶顯示面板測試裝 置及方法，可簡化測試流程，降低生產成本，進而提昇市 場競爭力。 本發明之另-目的在於提供—種液晶顯示面板測試裝 置及方法，可確保每次檢測液晶顯示面板時，其客觀條件 一致，進而確保測試的品質及產品的再現性。 本發明之又-目的在於提供―種液晶顯示面板測試裝 置及方法，可自動化-貫作業，進崎低生產成本，增加 生產效能。 為達上述目的，本發明提供一種液晶顯示面板測試裝 置，該液晶顯示面板依序由一第一偏光板、一第一位相差 板、一液晶單體、一第二位相差板及一第二偏光板所組成， 其中该液晶顯示面板測試裝置係包括有··一光源產生裝 置，可提供一光源；一測試基座，其係用以承載該液晶顯 示面板，使該液晶顯示面板與該光源行進方向呈一適當角 度，且該測試基座可旋轉調整該第一位相差板和該第二位 相差板之相位，以及選擇進行該第一位相差板與選擇進行 該第二位相差板之置換；一光摘取單元，其係相對應該光 源產生裝置設置，用以接收由該液晶顯示面板來的光源； 一光訊號檢測裝置，其係連接於該光擷取單元，用以判讀 該光擷取單元之數據。 其中，該液晶顯示面板測試裝置更包括一比對裝置， 其係設於該光訊號檢測裝置與該測試基座間，且該比對裝 1230296 置可提供一比對值，用以比對該光訊號檢測裝置所判讀之 數據，作為該測試基座調整之依據。 於本發明液晶顯示面板測試方法的較佳實施例中，其 中一液晶顯示面板設於一測試基座上，且該液晶顯示面板 依序由一第一偏光板、一第一位相差板、一液晶單體、一 第二位相差板及一第二偏光板所組成，其係包括有下列步 驟： (a) 將一光源以一適當角度射入該液晶顯示面板； (b) 接收由該液晶顯示面板來的光源，以獲得一檢測值； (c) 將該檢測值與一標準值比較； (d) 以該測試基座旋轉調整該第一位相差板和該第二位相差 板之相位，以及選擇進行該第一位相差板與選擇進行該 第二位相差板之置換，使該檢測值近似該標準值。 【實施方式】 為使貴審查委員能對本發明之特徵、目的及功能有 更進一步的認知與瞭解，茲配合圖式詳細說明如後。 如圖二所示，其係為本發明之液晶顯示面板測試裝置 第一較佳實施例示意圖，其中液晶顯示面板201依序由一 第^一偏光板2010、一第^^位相差板2011、^—液晶單體 2012、一第二位相差板2013及一第二偏光板2014等五層 所組成，且該液晶顯示面板201係為穿透式之面板，該液 晶顯示面板測試裝置係由光源產生裝置202提供一光源 203，本發明之光源產生裝置202係使用染料雷射（Dye 12302961230296 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a test device and method for a liquid crystal display panel, particularly a method for automatically adjusting and testing the phase of a liquid crystal display panel by comparing values of standard specifications to Make the liquid crystal display panel meet the requirements and achieve the purpose of rapid detection. [Prior technology] Generally speaking, 'the liquid crystal display panel is based on liquid crystal molecular materials as a basic element' and sandwich the white turbid liquid crystal molecules between two glass plates that have undergone the alignment treatment 'to form the current popular and closely related to our daily lives. Liquid crystal monomer. Since liquid crystal molecules are between solid and liquid, they not only have the property that the liquid is susceptible to flow by external forces, but also have the characteristic of optically different directions that are unique to crystals. The optical characteristics of light when the light penetrates the liquid crystal layer changes. This is the use of an external electric field to generate light modulation, which is called the photoelectric effect of liquid crystal. By using this effect, various types of liquid crystal display panels such as TN-TwistedNematic liquid crystal display panels, STN-SuperTN liquid crystal display panels, and thin film transistors (TFT-Thin Film) can be manufactured. Transistor) liquid crystal display panel. Please refer to FIG. 1, which is a structural diagram of a liquid crystal display panel. The liquid crystal display panel 1 is sequentially composed of a first polarizing plate 10, a first phase difference plate 11, a liquid crystal monomer 12, and a second position. Phase difference plate 13 and a second polarizing plate 1230296 light plate 14, wherein when the angle of the first polarizing plate 10 is 90 degrees, the angle of the first polarizing plate 14 is 0 degrees and vice versa, and the first is adjusted by rotating The phase of the phase difference plate 11 and the second phase difference plate 13 is to improve the compensation conditions of the phase difference plate for the optical characteristics of the liquid crystal cell 12 and the polarizing plate to obtain a larger viewing angle. The conventional adjustment methods all use manual adjustment methods to rotate and adjust the phase of the first phase difference plate 11 and the second phase difference plate 13 to match the value 或是 or replace the different phase difference plate and then perform manual adjustments. Adjust to match the required value. In summary, the conventional LCD panel test method has at least the following disadvantages: 1. The phase of the phase difference plate is adjusted by manual adjustment, the accuracy of the adjustment is not good, and the quality of the adjustment cannot be guaranteed. 2. The phase of the phase difference plate is adjusted by manual calibration, which consumes human resources, increases production costs, and reduces market competitiveness. 3. The phase of the phase difference plate is adjusted by manual adjustment, and its reproducibility is not good. It cannot ensure that every time the school _ guest bribes are sent, the quality of the adjustment and the reproducibility of the product are improved. The fourth is to adjust the phase of the phase difference plate by manual adjustment, which is called low production efficiency. ‘Ca n’t be automated [Content of the invention] The main purpose of this technique is to provide a liquid test panel test device and method that can improve the accuracy of the test by 1230296 degrees to ensure the quality of the LCD panel. The secondary purpose of the present invention is to provide a testing device and method for a liquid crystal display panel, which can simplify the testing process, reduce the production cost, and further improve the market competitiveness. Another object of the present invention is to provide a testing device and method for a liquid crystal display panel, which can ensure that the objective conditions are consistent each time the liquid crystal display panel is tested, thereby ensuring the quality of the test and the reproducibility of the product. Another object of the present invention is to provide a liquid crystal display panel test device and method, which can automate continuous operations, reduce production costs and increase production efficiency. To achieve the above object, the present invention provides a liquid crystal display panel testing device. The liquid crystal display panel includes a first polarizing plate, a first phase difference plate, a liquid crystal monomer, a second phase difference plate, and a second It consists of a polarizing plate, where the liquid crystal display panel test device includes a light source generating device that can provide a light source; a test base is used to carry the liquid crystal display panel so that the liquid crystal display panel and the light source The traveling direction is at an appropriate angle, and the test base can rotate to adjust the phase of the first phase difference plate and the second phase difference plate, and choose to perform the first phase difference plate and the second phase difference plate. Replacement; a light extraction unit, which is arranged corresponding to the light source generating device, to receive the light source from the liquid crystal display panel; a light signal detection device, which is connected to the light extraction unit, to read the light Retrieve the data of the unit. Wherein, the liquid crystal display panel test device further includes a comparison device, which is disposed between the optical signal detection device and the test base, and the comparison device 1230296 can provide a comparison value for comparing the light The data read by the signal detection device serves as the basis for adjusting the test base. In a preferred embodiment of the method for testing a liquid crystal display panel of the present invention, one of the liquid crystal display panels is disposed on a test base, and the liquid crystal display panel includes a first polarizing plate, a first phase difference plate, a The liquid crystal monomer, a second phase difference plate, and a second polarizing plate are composed of the following steps: (a) a light source is projected into the liquid crystal display panel at an appropriate angle; (b) receiving the liquid crystal Display the light source from the panel to obtain a detection value; (c) compare the detection value with a standard value; (d) use the test base to rotate and adjust the phase of the first phase difference plate and the second phase difference plate And choosing to perform the replacement of the first phase difference plate and the second phase difference plate, so that the detection value approximates the standard value. [Embodiment] In order to enable your review committee to further understand and understand the features, objects, and functions of the present invention, detailed descriptions are given below in conjunction with the drawings. As shown in FIG. 2, it is a schematic diagram of the first preferred embodiment of the liquid crystal display panel test device of the present invention, in which the liquid crystal display panel 201 is sequentially composed of a first polarizing plate 2010, a first phase difference plate 2011, ^ —The liquid crystal monomer 2012, a second phase difference plate 2013 and a second polarizing plate 2014 are composed of five layers, and the liquid crystal display panel 201 is a transmissive panel, and the liquid crystal display panel test device is composed of a light source. The generating device 202 provides a light source 203. The light source generating device 202 of the present invention uses a dye laser (Dye 1230296
Laser)作為可見光的產生裝置，因雷射具有高解析度、高 亮度及高純度的特性，故該光源203之波長可控制在380nm 至780nm’其解析度更可達到〇 〇inm，亦即可見光的波長， 如此測試者才可分清楚所產生之圖形。 接著，光源203進入一比對裝置204，該比對裝置204 依序係包括有：一分光裝置2040、一樣品液晶顯示面板2041 及一樣品光擷取單元2042,其中該分光裝置2040可將該光 源203等量、等光程長(DrD〗)分成光源203a及光源203b， 分別配置光源203a垂直進入樣品液晶顯示面板2041與光 源203b垂直進入液晶顯示面板201，使樣品液晶顯示面板 2041與液晶顯示面板201的測試客觀條件一致，再利用相 對應分光裝置2040所設置之樣品光擷取單元2042來接收 光源203a。 該光源203b以垂直方向進入測試基座205上所承載之 液晶顯示面板201，該光源203b通過液晶顯示面板201後 被一光擷取單元206所接收，且由液晶顯示面板201至光 擷取單元206之距離(D4:即光程長)等於由樣品液晶顯示面 板2041至樣品光擷取單元2042之距離(D3:即光程長），將 光擷取單元206與樣品光擷取單元2042皆連接至光訊號檢 測裝置207，用以判讀光擷取單元206與樣品光擷取單元 2042之數據。因該樣品液晶顯示面板2041係為標準樣品之 確定規格，故該比對裝置204可提供一比對值Ch2，用以比 對該光訊號檢測裝置207所判讀待測的液晶顯示面板2〇1 之數據Ch〗，且該測試基座205可〇至360度分別旋轉調整 1230296 該第一位相差板2011和該第二位相差板2013之相位，咬 選擇進行該第一位相差板2011之置換，或選擇進行該第二 位相差板2013之置換，使數據ci^與比對值Ch2近似，亦 即液晶顯示面板201之相位達到所需之標準的測試值。 且該光訊號檢測裝置207連接一記錄裝置208作為記 錄數據之用，並利用外來觸發信號(External Trigger)的方式 連接一數位延遲器209後，再連接到光源產生裝置2〇2，以 便控制该光源產生裝置202與該光訊號檢測裝置207同步 運作，使檢測工作順利完成。通常，該光訊號檢測裝置2〇7 都是使用示波器作為檢測裝置，該記錄裝置208係使用電 腦或積分器，該光擷取單元206與該樣品光擷取單元2042 係使用電荷搞合器（CCD )、互補式金屬氧化半導體 (CMOS)或光電倍增管（PMT)。以下所述之本發明其他 較佳實施例中’因大部份的元件係相同或類似於前述實施 例，因此相同之元件將直接給予相同之名稱及編號，且對 於類似之元件則給予相同名稱但在原編號後另增加一英文 字母以資區別且不予贅述，合先敘明。 如圖三所示，其係為本發明之液晶顯示面板測試裝置 第二較佳實施例示意圖，其中液晶顯示面板2〇1&與樣品液 晶顯示面板2041a皆為反射式的面板，光源2〇3a被樣品液 晶顯示面板2041a所反射之夾角為0〗，光源2〇3b被液晶顯 示面板201a所反射之夾角為6>2，且失角,等於夾角02， 光程長（D〗=〇2、D3=〇4)，如此一來，樣品液晶顯示面板 2041a與液晶顯不面板201a的測試客觀條件便^一致；由樣 1230296 品液晶顯示面板2041a來的反射光源被樣品光擷取單元 2042a所接收，由液晶顯示面板201a來的反射光源被光擷 取單元206a所接收，再由光訊號檢測裝置207檢測比對。 其他各元件作動方式與本發明第一較佳實施例相同，在此 不予贅述。 如圖四所示，其係為本發明之液晶顯示面板測試裝置 第三較佳實施例示意圖，其中液晶顯示面板201b與樣品液 晶顯不面板2041b皆為穿透反射式（半反射式）的面板， 光源203a被樣品液晶顯不面板2041b所反射之爽角為Θ 3， 至樣品光擷取單元2042b之距離（光程長）為D3,光源203a 通過樣品液晶顯示面板2041b至樣品光擷取單元2042c之 距離（光程長）為Ds ;光源203b被液晶顯示面板201b所 反射之夾角為6U，至光擷取單元206b之距離（光程長）為 D4，光源203b通過液晶顯示面板201b至光擷取單元206c 之距離（光程長）為D6;其中，夾角（03=心）、光程長 (D!=D2、D3=D4、D5=D6)，如此一來，樣品液晶顯示面板 2041b與液晶顯示面板201b的測試客觀條件亦一致，由樣 品液晶顯示面板2041b來的反射光源被樣品光擷取單元 2042b所接收，由樣品液晶顯示面板2041b來的穿透光源被 樣品光擷取單元2042c所接收；由液晶顯示面板2〇lb來的 反射光源被光擷取單元206b所接收，由液晶顯示面板2〇比 來的穿透光源被光擷取單元206c所接收，四者訊號皆由光 訊號檢測裝置207檢測比對。其他各元件作動方式亦與本 發明第一較佳實施例相同，在此不予贅述。 1230296 當然，圖二、圖三與圖四中之比對裝置（2〇4、2〇如、 204b)亦可省略，直接由預存於電腦中的資料，取得比對 值來比對即可。 請參閲圖五所示，其係為本發明液晶顯示面板測試方 法較佳實施織㈣意圖，其巾—液晶顯示面板設於一測 試基座上，且該液晶顯示面板依序由一第一偏光板、一第 一位相差板、一液晶單體、一第二位相差板及一第二偏光 板所組成，該測試方法係包括有下列步驟： (a) 將一光源垂直該液晶顯示面板射入3〇1，其中該光源係 為可見光，波長為380至78〇nm，解析度為0.01nm，且 產生該光源之裝置通常是使用一染料雷射（DyeLaser) 作為可見光的產生裝置。 (b) 接收由該液晶顯示面板來的光源，以獲得一檢測值 302，該檢測值通常係將由該液晶顯示面板來的光源以 一光擷取單元接收後，再使用示波器轉換成數據資料所 獲得的值，且由該液晶顯示面板來的光源會隨該液晶顯 示面板的類型不同而改變，該液晶顯示面板為穿透式面 板時’由該液晶顯不面板來的光源係為穿透式之光源； 該液晶顯示面板為反射式面板時，由該液晶顯示面板來 的光源係為反射式之光源；該液晶顯示面板為穿透反射 式（半反射式）面板時’由該液晶顯不面板來的光源係 為穿透反射式之光源。 (c) 將該檢測值與一標準值比較303 ’該標準值係為廠商所 需之規格數據，可使用現有的資料庫，或是直接由樣品 12 1230296 取得數據。 - ⑹以該測試基座調整該液晶顯示面板的她，使該檢離 近似該標準值304，以該測試基座旋轉調整該第-位相 差板和该第二位相差板之相位，或選擇進行該第一位相 差板之置換’或選擇進行該第二位相差板之置換，以使 該檢測值近似該標準值。 綜上所述’本發明之一種液晶顯示面板測試裝置及方 法>1可提尚測試的精準度，以確保液晶顯示面板的品質， 並簡化測試流程，降低生產成本，以及，可確保每次檢測 鲁 液晶顯不面板時，其客觀條件一致，以自動化一貫作業， 進而降低生產成本，增加生產效能；惟以上所述者，僅為 本發明之較佳實施例，當不能以之限制本發明的範圍，容 易聯想得到，諸如··使用不同的光源、液晶顯示面板的組 成不同、以電腦取代示波器等等，熟悉此領域技藝者於領 悟本發明之精神後，皆可想到變化實施之，即大凡依本發 明申請專利範圍所做之均等變化及修飾，仍將不失本發明 之要義所在，亦不脫離本發明之精神和範圍，故都應視為 馨 本發明的進一步實施狀況。 本發明於習知技術領域上無相關之技術揭露，已具新 穎性；本發明之技術内容可確實解決該領域之問題，且方 法原理屬非根據習知技藝而易於完成者，其功效性業已經 詳述，實具進步性，誠已符合專利法中所規定之發明專利 要件’謹請貴審查委員惠予審視，並賜准專利為禱。 13 1230296 【圖式簡單說明】 圖一係為液晶顯示面板的結構示意圖。 圖二為本發明之液晶顯示面板測試裝置第一較佳實施 例示意圖。 圖三係為本發明之液晶顯示面板測試裝置第二較佳實 施例示意圖。 圖四係為本發明之液晶顯示面板測試裝置第三較佳實 施例示意圖。 圖五係為本發明液晶顯示面板測試方法較佳實施例流 程不意圖。 圖號說明： I、 201、201a、201b-液晶顯示面板 10、2010-第一偏光板 II、 2011-第一位相差板 12、 2012-液晶單體 13、 2013-第二位相差板 14、 2014-第二偏光板 202-光源產生裝置 203、 203a、203b-光源 204、 204a、204b-比對裝置 2040-分光裝置 2041、 2041a、2041b-樣品液晶顯示面板 2042、 2042a、2042b、2042c-樣品光擷取單元 1230296 205-測試基座 206、206a、206b、206c-光擷取單元 207- 光訊號檢測裝置 208- 記錄裝置 209- 數位延遲器 301- 將一光源垂直該液晶顯示面板射入 302- 接收由該液晶顯示面板來的光源，以獲得一檢測值 303- 將該檢測值與一標準值比較 304_以該測試基座調整該液晶顯示面板的相位，使該檢測值 近似該標準值Laser) is a visible light generating device. Because the laser has the characteristics of high resolution, high brightness, and high purity, the wavelength of the light source 203 can be controlled from 380nm to 780nm. Its resolution can reach 〇inm, which is also light. Wavelength so that the tester can clearly distinguish the generated pattern. Then, the light source 203 enters a comparison device 204. The comparison device 204 includes: a spectroscopic device 2040, a sample liquid crystal display panel 2041, and a sample light capture unit 2042. The spectroscopic device 2040 may The light source 203 is divided into a light source 203a and a light source 203b in equal quantity and equal light path length (DrD), and the light source 203a is configured to enter the sample liquid crystal display panel 2041 vertically and the light source 203b enters the liquid crystal display panel 201 vertically, so that the sample liquid crystal display panel 2041 and the liquid crystal display The test objective conditions of the panel 201 are the same, and then the sample light capturing unit 2042 provided in the corresponding spectroscopic device 2040 is used to receive the light source 203a. The light source 203b enters the liquid crystal display panel 201 carried on the test base 205 in a vertical direction. The light source 203b passes through the liquid crystal display panel 201 and is received by a light capturing unit 206, and the liquid crystal display panel 201 to the light capturing unit The distance of 206 (D4: the optical path length) is equal to the distance from the sample liquid crystal display panel 2041 to the sample light extraction unit 2042 (D3: the optical path length). Both the light extraction unit 206 and the sample light extraction unit 2042 are It is connected to the optical signal detection device 207 for judging the data of the light capture unit 206 and the sample light capture unit 2042. Because the sample liquid crystal display panel 2041 is the standard specification of the standard sample, the comparison device 204 can provide a comparison value Ch2 to compare the liquid crystal display panel 2101 to be measured determined by the optical signal detection device 207. The data Ch〗, and the test base 205 can be rotated to adjust the phase of the first phase difference plate 2011 and the second phase difference plate 2013 by 0 to 360 degrees, respectively, bite selection to replace the first phase difference plate 2011 Or, the replacement of the second phase difference plate 2013 is selected, so that the data ci ^ and the comparison value Ch2 are similar, that is, the phase of the liquid crystal display panel 201 reaches a required standard test value. In addition, the optical signal detection device 207 is connected to a recording device 208 for recording data, and is connected to a digital delay device 209 by using an external trigger signal, and then connected to the light source generating device 202 to control the device. The light source generating device 202 operates synchronously with the optical signal detection device 207, so that the detection work is successfully completed. Generally, the optical signal detection device 207 uses an oscilloscope as the detection device, the recording device 208 uses a computer or an integrator, and the light capture unit 206 and the sample light capture unit 2042 use a charge coupler ( CCD), complementary metal oxide semiconductor (CMOS), or photomultiplier tube (PMT). In other preferred embodiments of the present invention described below, 'because most of the components are the same or similar to the foregoing embodiments, the same components will be given the same name and number directly, and similar components will be given the same name. However, another English letter is added after the original number to distinguish it and will not be repeated, and it will be described first. As shown in FIG. 3, it is a schematic diagram of the second preferred embodiment of the liquid crystal display panel test device of the present invention, in which the liquid crystal display panel 205 & and the sample liquid crystal display panel 2041a are both reflective panels, and the light source 203a The included angle reflected by the sample liquid crystal display panel 2041a is 0; the included angle reflected by the light source 203b reflected by the liquid crystal display panel 201a is 6> 2, and the missing angle is equal to the included angle 02, and the optical path length (D〗 = 〇2 D3 = 〇4). In this way, the test objective conditions of the sample liquid crystal display panel 2041a and the liquid crystal display panel 201a are the same; the reflected light source from the sample 1230296 liquid crystal display panel 2041a is received by the sample light capture unit 2042a. The reflected light source from the liquid crystal display panel 201a is received by the light capturing unit 206a, and then compared by the optical signal detection device 207. The operation modes of other components are the same as those of the first preferred embodiment of the present invention, and will not be repeated here. As shown in Figure 4, it is a schematic diagram of the third preferred embodiment of the liquid crystal display panel test device of the present invention, in which the liquid crystal display panel 201b and the sample liquid crystal display panel 2041b are both transflective (semi-reflective) panels. The refresh angle of the light source 203a reflected by the sample liquid crystal display panel 2041b is Θ 3, and the distance to the sample light capture unit 2042b (the optical path length) is D3. The light source 203a passes the sample liquid crystal display panel 2041b to the sample light capture unit The distance (optical path length) of 2042c is Ds; the included angle of the light source 203b reflected by the liquid crystal display panel 201b is 6U, and the distance (optical path length) to the light capturing unit 206b is D4, and the light source 203b passes the liquid crystal display panel 201b to the light The distance (optical path length) of the capturing unit 206c is D6; among them, the included angle (03 = heart), the optical path length (D! = D2, D3 = D4, D5 = D6). In this way, the sample liquid crystal display panel 2041b Consistent with the objective test conditions of the liquid crystal display panel 201b, the reflected light source from the sample liquid crystal display panel 2041b is received by the sample light capture unit 2042b, and the transmitted light source from the sample liquid crystal display panel 2041b is received by the sample light capture unit 20 Received at 42c; the reflected light source from the LCD display panel 20lb is received by the light capture unit 206b, and the transmitted light source from the LCD display panel 20 ratio is received by the light capture unit 206c. All four signals are received by The optical signal detection device 207 detects the comparison. The operation modes of other components are also the same as those of the first preferred embodiment of the present invention, and will not be repeated here. 1230296 Of course, the comparison devices (204, 20, 204b) in Figures 2, 3, and 4 can also be omitted, and the comparison value can be obtained directly from the data stored in the computer for comparison. Please refer to FIG. 5, which is a schematic view of a preferred implementation of the liquid crystal display panel test method of the present invention. The towel-liquid crystal display panel is set on a test base, and the liquid crystal display panel is sequentially It consists of a polarizing plate, a first phase difference plate, a liquid crystal cell, a second phase difference plate, and a second polarizing plate. The test method includes the following steps: (a) A light source is vertical to the liquid crystal display panel. Injecting 301, where the light source is visible light, the wavelength is 380 to 780 nm, the resolution is 0.01 nm, and the device generating the light source is usually a dye laser (DyeLaser) as a visible light generating device. (b) Receive the light source from the liquid crystal display panel to obtain a detection value 302. The detection value is usually received by the light source from the liquid crystal display panel with a light capture unit, and then converted to data by an oscilloscope. The obtained value, and the light source from the liquid crystal display panel will change with the type of the liquid crystal display panel. When the liquid crystal display panel is a transmissive panel, the light source from the liquid crystal display panel is a transmissive type. When the liquid crystal display panel is a reflective panel, the light source from the liquid crystal display panel is a reflective light source; when the liquid crystal display panel is a transflective (semi-reflective) panel, The light source from the panel is a transflective light source. (c) Compare the test value with a standard value 303 ′ The standard value is the specification data required by the manufacturer. The existing database can be used, or the data can be obtained directly from sample 12 1230296. -调整 Use the test base to adjust the LCD panel so that the detection is approximately the standard value 304. Use the test base to rotate and adjust the phase of the first-phase phase difference plate and the second-phase phase difference plate, or select Perform the replacement of the first phase difference plate 'or choose to perform the replacement of the second phase difference plate so that the detection value approximates the standard value. In summary, 'A liquid crystal display panel test device and method of the present invention> 1 can improve the accuracy of the test to ensure the quality of the liquid crystal display panel, and simplify the test process, reduce production costs, and ensure that When detecting the LCD display panel, the objective conditions are the same, and the operation is consistent and automated, thereby reducing the production cost and increasing the production efficiency; however, the above are only preferred embodiments of the present invention. The scope is easy to associate, such as the use of different light sources, the composition of the LCD panel, the use of a computer to replace the oscilloscope, and so on. Those skilled in this field can conceive of the change after implementing the spirit of the present invention, that is, Any equal changes and modifications made in accordance with the scope of the patent application of the present invention will still not lose the essence of the present invention, nor deviate from the spirit and scope of the present invention, so it should be regarded as a further implementation of the present invention. The present invention has no related technical disclosure in the field of conventional technology, and it is novel; the technical content of the present invention can surely solve the problems in this field, and the principle of the method belongs to those who are not easy to complete based on the known technology. It has been described in detail, it is progressive, and it has complied with the requirements of the invention patent stipulated in the Patent Law. I invite your reviewing committee to review it and grant the patent as a prayer. 13 1230296 [Brief description of the drawings] Figure 1 is a schematic diagram of the structure of a liquid crystal display panel. FIG. 2 is a schematic diagram of a first preferred embodiment of a liquid crystal display panel test device according to the present invention. FIG. 3 is a schematic diagram of a second preferred embodiment of the liquid crystal display panel test device of the present invention. FIG. 4 is a schematic diagram of a third preferred embodiment of the liquid crystal display panel test device of the present invention. FIG. 5 is a flowchart of a preferred embodiment of a method for testing a liquid crystal display panel according to the present invention. Explanation of drawing numbers: I, 201, 201a, 201b-LCD panel 10, 2010-first polarizing plate II, 2011-first phase difference plate 12, 2012-liquid crystal unit 13, 2013-second phase difference plate 14, 2014-Second polarizing plate 202-light source generating device 203, 203a, 203b-light source 204, 204a, 204b-comparing device 2040-spectroscopy device 2041, 2041a, 2041b-sample liquid crystal display panel 2042, 2042a, 2042b, 2042c-sample Light extraction unit 1230296 205-Test base 206, 206a, 206b, 206c- Light extraction unit 207- Optical signal detection device 208- Recording device 209- Digital retarder 301- A light source perpendicular to the liquid crystal display panel is injected into 302 -Receive a light source from the LCD panel to obtain a detection value 303- Compare the detection value with a standard value 304_ Adjust the phase of the LCD panel with the test base so that the detection value approximates the standard value
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