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    • 3. 发明授权
    • Method for manufacturing a display device, and display device substrate
    • 显示装置的制造方法以及显示装置用基板
    • US06836140B2
    • 2004-12-28
    • US09983947
    • 2001-10-26
    • Takashi FujikawaYoshiharu KataokaHitoshi Matsumoto
    • Takashi FujikawaYoshiharu KataokaHitoshi Matsumoto
    • G01R3100
    • G02F1/1309G02F1/13452
    • A TEG (Test Element Group) block 1 includes a TFT (Thin Film Transistor) test element and a capacitance test element that are arranged adjacent to each other, and six test terminals. A TEG block 2 includes a resistance test element and a capacitance test element that are arranged adjacent to each other, and six test terminals. In these TEG blocks, the test terminals are arranged with the same pattern. Each of the test elements in each TEG block is connected to at least one of a plurality of test terminals included in that TEG block. The test elements can be efficiently formed on the substrate in view of the space on a display device substrate or the preference of characteristics to be evaluated. Moreover, characteristics of each test element can be conducted with a common probe regardless of the type of display device.
    • TEG(测试元件组)块1包括彼此相邻布置的TFT(薄膜晶体管)测试元件和电容测试元件,以及六个测试端子。 TEG模块2包括彼此相邻布置的电阻测试元件和电容测试元件,以及六个测试端子。 在这些TEG模块中,测试端子以相同的模式排列。 每个TEG块中的每个测试元件连接到包括在该TEG块中的多个测试终端中的至少一个测试元件。考虑到显示设备基板上的空间或者优选地,可以在衬底上有效地形成测试元件 的特征被评估。 此外,无论显示装置的类型如何,都可以使用普通探针来进行每个测试元件的特性。
    • 4. 发明授权
    • Active matrix substrate with concave portion in region at edge of pixel
electrode and method for fabricating the same using ashing treatment
    • 在像素电极的边缘处的区域中具有凹部的有源矩阵基板和使用灰化处理的其制造方法
    • US06091470A
    • 2000-07-18
    • US926574
    • 1997-09-04
    • Takashi FujikawaYoshiharu Kataoka
    • Takashi FujikawaYoshiharu Kataoka
    • G02F1/136G02F1/1362G02F1/1368G02F1/1333
    • G02F1/136227
    • An active-matrix substrate includes: two kinds of lines arranged in a matrix on an insulating plate; switching elements each provided in the vicinity of an intersection of the two kinds of lines; an insulating film for flattening, covering an entire surface of the insulating plate so as to flatten the uneven surface of the insulating plate due to the presence of the lines and the switching elements; and pixel electrodes provided in a matrix on the insulating film for flattening. A concave portion for preventing a short-circuit from occurring between the pixel electrodes during a production process is formed in a region of the insulating film for flattening which corresponds to a gap between pixel electrodes which are adjacent to each other. Also, a method for fabricating the active-matrix substrate includes the step of forming a concave portion for preventing a short-circuit from occurring between the pixel electrodes in an exposed portion of the insulating film for flattening at a gap between the pixel electrodes adjacent to each other, forming the concave portion by an ashing treatment after forming the pixel electrodes in a matrix.
    • 有源矩阵基板包括:在绝缘板上以矩阵布置的两种线; 各个设置在两条线路的交点附近的开关元件; 用于平坦化的绝缘膜,覆盖绝缘板的整个表面,以便由于线和开关元件的存在而使绝缘板的不平坦表面变平; 以及设置在绝缘膜上的矩阵中的像素电极用于平坦化。 在用于平坦化的绝缘膜的与彼此相邻的像素电极之间的间隙对应的区域中形成用于防止在制造工艺期间在像素电极之间发生短路的凹部。 此外,制造有源矩阵基板的方法包括形成用于防止在绝缘膜的暴露部分中的像素电极之间发生短路的凹部的步骤,用于在邻近的像素电极之间的间隙处变平 彼此形成像素电极之后通过灰化处理形成凹部。
    • 6. 发明授权
    • Liquid crystal display device having specified structure for contact
hole connecting pixel electrode with source/drain electrodes via a
connecting electrode
    • 液晶显示装置具有通过连接电极将像素电极与源/漏电极连接的接触孔的特定结构
    • US5943105A
    • 1999-08-24
    • US882645
    • 1997-06-25
    • Takashi FujikawaHirohiko NishikiYoshiharu Kataoka
    • Takashi FujikawaHirohiko NishikiYoshiharu Kataoka
    • G02F1/136G02F1/1362G02F1/1368H01L21/77H01L21/84H01L27/12G02F1/1343H01L29/04
    • G02F1/1362H01L27/1214
    • A liquid crystal display device comprises a gate signal wiring formed on a substrate, a data signal wiring insulated from the gate signal wiring and formed to perpendicularly cross the gate signal wiring, a switching element provided near the perpendicularly crossing portion of the gate signal wiring and the date signal wiring and having a gate electrode and source/drain electrodes, an interlayer insulating film, and a pixel electrode disposed in the region surrounded by the gate signal wiring and the data signal wiring and on the interlayer insulating film, wherein the gate signal wiring is connected with the gate electrode, the data signal wiring is connected with one of the source/drain electrodes, the pixel electrode is connected with the other of the source/drain electrodes through a contact hole penetrating through an interlayer insulating film and via a connecting electrode, and, the width of the contact hole at the aperture surface of the contact hole is reduced by setting the height from the surface of the substrate to the bottom of the contact hole to be larger than the height of the contact hole.
    • 液晶显示装置包括形成在基板上的栅极信号布线,与栅极信号布线绝缘并形成为垂直交叉栅极信号布线的数据信号布线,设置在栅极信号布线的垂直交叉部分附近的开关元件,以及 所述日期信号布线具有栅电极和源极/漏电极,层间绝缘膜和设置在由栅极信号布线和数据信号布线以及层间绝缘膜包围的区域中的像素电极,其中栅极信号 布线与栅电极连接,数据信号布线与源/漏电极之一连接,像素电极通过贯穿层间绝缘膜的接触孔与另一个源极/漏极连接,并通过 连接电极,并且通过设置接触孔的孔表面处的接触孔的宽度减小 从基板表面到接触孔底部的高度大于接触孔的高度。