WO2011035458A1 - 一种感应式液晶显示按键屏 - Google Patents

一种感应式液晶显示按键屏 Download PDF

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Publication number
WO2011035458A1
WO2011035458A1 PCT/CN2009/001250 CN2009001250W WO2011035458A1 WO 2011035458 A1 WO2011035458 A1 WO 2011035458A1 CN 2009001250 W CN2009001250 W CN 2009001250W WO 2011035458 A1 WO2011035458 A1 WO 2011035458A1
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Prior art keywords
ito
liquid crystal
alignment film
display electrode
ito glass
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PCT/CN2009/001250
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English (en)
French (fr)
Inventor
蒋实
Original Assignee
Jiang Shi
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Publication of WO2011035458A1 publication Critical patent/WO2011035458A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods

Definitions

  • the invention relates to an inductive liquid crystal display button screen. Background technique
  • '"Vector pressure sensing technology touch screen resistance technology touch screen, capacitive technology touch screen, infrared technology touch screen, surface acoustic wave technology touch screen.
  • vector pressure sensing technology touch screen has been withdrawn Historical stage; Infrared technology touch screen is cheap, but its frame is fragile, easy to produce light interference, distortion in the case of surface; Capacitive technology touch design is reasonable, but its image distortion problem is difficult to be fundamentally solved, capacitive technology touch screen The positioning is accurate, but its price is quite high, and it is afraid of scratching.
  • the surface acoustic wave touch screen solves various defects of the touch screen in the past.
  • the touch screen can be divided into: plug-in type, built-in type and integral type.
  • the plug-in touch screen directly mounts the touch detection device of the touch screen system in front of the display device. This touch screen is easy to install and is very suitable for temporary use.
  • the built-in touch screen mounts the touch detection device in the housing of the display device, in front of the display.
  • the touch screen detecting device is made on the display, so that the display device directly has a touch function, which is an integral touch screen.
  • the inductive liquid crystal display keypad is a combination of a liquid crystal display and a capacitive sensing control integrated circuit. It combines the advantages of resistive positioning accuracy, capacitive design rationality, sonic-type clarity and non-damage, and the installation method is integral, extremely simple and convenient. Summary of the invention
  • the object of the invention is to provide a simple structure, a thin thickness, convenient installation and fixation, long service life, strong environmental adaptability, simple production process, low cost, high transparency, reliable performance, clearer and more beautiful human-machine dialogue interface.
  • High-inductive LCD display button screen is to provide a simple structure, a thin thickness, convenient installation and fixation, long service life, strong environmental adaptability, simple production process, low cost, high transparency, reliable performance, clearer and more beautiful human-machine dialogue interface.
  • the present invention provides an inductive liquid crystal display button screen, which mainly comprises a single-sided ITO glass, a double-sided ITO glass, a plastic frame, a first display electrode, a first alignment film, and a first Two display electrodes, a second alignment film, a liquid crystal, a first polarizer, and an induction electrode
  • the frame is mounted between the single sided ITO glass and the double sided ITO glass.
  • the first display electrode is coated on the ITO conductive layer of the single-sided ITO glass, and the first polarizer is attached to the other side of the single-sided ITO glass.
  • the first alignment film is printed on the first display electrode.
  • the second display electrode is applied to the tantalum conductive layer of the double-sided ITO glass.
  • the second alignment film is printed on the second display electrode.
  • a closed accommodating space is formed between the plastic frame, the first alignment film and the second alignment film, and the liquid crystal is installed in the accommodating space.
  • the glue frame is provided with a set of conductive dots to turn on the first display electrode and the second display electrode.
  • the sensing electrode ITO layer is silk-screened on an ITO conductive layer of the double-sided ITO glass.
  • the second polarizer is attached to the ITO layer of the sensing electrode.
  • the advantages of the present invention are:
  • the inductive liquid crystal display key screen technology combines the advantages of a capacitive touch screen and a resistive touch screen to improve their shortcomings.
  • This technique uses a ruthenium layer on ITO glass to make the sensing electrode.
  • This method simplifies the production process, reduces the thickness of the product, increases the light transmittance, and covers any non-conductor protective layer (such as tempered glass, PVC transparent film, plexiglass, etc.) on the surface of the sensing screen, making it less susceptible to Scratch damage.
  • non-conductor protective layer such as tempered glass, PVC transparent film, plexiglass, etc.
  • 1 is a structural view of a first embodiment of an inductive liquid crystal display key panel.
  • 2 is a structural view of a second embodiment of the inductive liquid crystal display key panel.
  • Fig. 3 is a structural view showing a third embodiment of the inductive liquid crystal display key panel.
  • FIG. 4 is a structural view of a fourth embodiment of the inductive liquid crystal display key panel.
  • Fig. 5 is a structural view showing a fifth embodiment of the inductive liquid crystal display key panel.
  • Fig. 6 is a structural view showing a sixth embodiment of the inductive liquid crystal display key panel.
  • FIGS. 1 through 6 The present invention will be further described below in conjunction with FIGS. 1 through 6:
  • an inductive liquid crystal display button screen mainly includes a single-sided ITO glass 1, a double-sided bismuth glass 2, a plastic frame 3, and a first display electrode 4.
  • the first polarizer 10 and the second polarizer 11 together constitute the LCD panel 12.
  • the ITO conductive layer of the single-sided ITO glass 1 is upward. ,
  • the double-sided ITO glass 2 is disposed above the single-sided ITO glass 1.
  • the frame 3 is mounted between the one-sided ITO glass 1 and the double-sided ITO glass 2.
  • the first display electrode 4 is coated on the ITO conductive layer of the single-sided beryllium glass 1.
  • the first alignment film 5 is printed on the first display electrode 4.
  • the second display electrode 6 is applied to the ITO conductive layer on the bottom surface of the double-sided ITO glass 2.
  • the second alignment film 7 is printed on the second display electrode 6.
  • a closed accommodating space 32 is formed between the plastic frame 3, the first alignment film 5, and the second alignment film 7.
  • the liquid crystal 8 is mounted in the accommodating space 32.
  • a set of conductive dots 34 is disposed in the plastic frame 3 to turn on the first display electrode 4 and the second display electrode 6.
  • the sensing electrode ITO layer 9 is silk-screened on the ITO conductive layer on the top surface of the double-sided ITO glass 2.
  • the first polarizer 10 is attached to the bottom surface of the single-sided ITO glass 1.
  • the second polarizer 11 is attached to the top surface of the ITO layer 9 of the sensing electrode.
  • FIG. 2 is a second embodiment of the present invention:
  • the ITO conductive layer of the single-sided ITO glass 1 is downward.
  • the frame 3 is mounted between the one-sided ITO glass 1 and the double-sided ITO glass 2.
  • the first display electrode 4 is coated on the ITO conductive layer of the single-sided ITO glass 1.
  • the first alignment film 5 is printed on the first display electrode 4.
  • the second display electrode 6 is applied to the ITO conductive layer on the surface of the double-sided ITO glass 2.
  • the second alignment film 7 is printed on the second display electrode 6.
  • a closed accommodating space 2 is formed between the plastic frame 3, the first alignment film 5, and the second alignment film 7.
  • the liquid crystal 8 is mounted in the accommodating space 32.
  • a set of conductive dots 34 is disposed in the bezel 3 to turn on the first display electrode 4 and the second display electrode 6.
  • the sensing electrode ITO layer 9 is silk-screened on the ITO conductive layer on the bottom surface of the double-sided ITO glass 2.
  • the first polarizer 10 is attached to the top surface of the single-sided ITO glass 1.
  • the second polarizer 11 is attached to the bottom surface of the ITO layer 9 of the sensing electrode.
  • FIG. 3 and FIG. 4 it is also possible to install a third directly above or below the LCD liquid crystal display 12 of the first embodiment or the second embodiment.
  • a single-sided ITO glass 13 is printed on the ITO conductive layer on the bottom surface of the single-sided ITO glass 13.
  • FIG. 5 and FIG. 6 for the fifth and sixth embodiments of the present invention:
  • a single-sided enamel film 14 is used instead of the third and fourth embodiments.
  • Three pieces of single-sided ITO glass 13, the other structures are the same as those of the third and fourth embodiments.
  • the invention utilizes a transparent ITO conductive layer on a bismuth glass or ITO film to form a sensing electrode, and realizes a control function by sensing the capacitance of the integrated circuit, thereby changing the traditional double-sided ITO conduction.
  • Touch control function the design of the product by the invention has the following advantages: 1.
  • the structure is simple, the thickness is thin, the installation is convenient and convenient, and it does not occupy space.
  • the inductive liquid crystal display button screen integrates the liquid crystal display with the original induction button screen as a whole, the structure is simple, and the overall thickness is thinner than the contact type touch screen. Mm, and easy to install.
  • the outer surface can be installed with a transparent plate with a maximum thickness of 10 mm.
  • the inductive liquid crystal display button screen can be in direct contact with the outside world, so it has a long service life, no scratches, and strong environmental adaptability.
  • the number of layers is small, the production process is simple, and the cost is low. Since the inductive liquid crystal display button screen has less structure than the contact type touch screen, the material and installation production cost are greatly reduced.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Position Input By Displaying (AREA)
  • Liquid Crystal (AREA)

Description

一种感应式液晶显示按键屏 技术领域
本发明涉及一种感应式液晶显示按键屏。 背景技术
从人们使用机械按键开始, 到现在大街小巷的触摸式 MP3、 MP4, 再 到触摸式手机、 数码相机、 PC手写板、 电磁炉、 微波炉、 空调、 冰箱、 冰 柜、 太阳能热水器、 电子称、 指纹锁、 电子门锁、 仪器仪表、 运动器材等 等, 可以说我们正在进入一个触摸时代。 触摸屏是最方便、 简单、 自然直 观的输入手段。 随着现代人对节约空间以及人机显示界面的审美观与互动 性要求的提升, 传统的机械按键及传统触摸屏将在很大层面上被感应式液 晶显示按键屏取代。 从技术原理来区别触摸屏, 可分为五个基本种类:'「矢 量压力传感技术触摸屏、 电阻技术触摸屏、 电容技术触摸屏、 红外线技术 触摸屏、 表面声波技术触摸屏。 其中矢量压力传感技术触摸屏已退出历史 舞台; 红外线技术触摸屏价格低廉, 但其外框易碎, 容易产生光千扰, 曲 面情况下失真; 电容技术触摸设计构思合理, 但其图象失真问题很难得到 根本解决, 电容技术触摸屏的定位准确, 但其价格颇高, 且怕刮易损; 表 面声波触摸屏解决了以往触摸屏各种缺陷, 清晰不容易被损坏, 适于各种 场合, 缺点是屏幕表面如果有水滴和尘土会使触摸屏变的迟钝, 甚至不工 作。 按照触摸屏的工作原理和传输信息的介质把触摸屏分为四种, 它们分 别为电阻式、 红外线式、 电容感应式以及表面声波式。
从安装方式来分, 触摸屏可以分为: 外挂式、 内置式和整体式。 外挂 式触摸屏就是将触摸屏系统的触摸检测装置直接按装在显示设备的前面, 这种触摸屏安装简便, 非常适合临时使用。 内置式触摸屏是把触摸检测装 置安装在显示设备的外壳内, 显示器的前面。 在制造显示设备时, 将触摸 屏检测装置制作在显示器上, 使显示设备直接具有触摸功能, 这就是整体 式触摸屏。 感应式液晶显示按键屏是液晶显示器与电容式感应控制集成电路相结 合的产品。 其融合了电阻式的定位准确、 电容式设计合理性、 声波式的清 晰与不易损坏等优点, 而且安装方式为整体式, 极其简单方便。 发明内容
本发明的目的在于提供一种结构简单、 厚度薄、 安装固定方便、 使用 寿命长、 环境适应力强、 生产流程简单、 成本低、 透光度高、 性能可靠、 人机对话界面更清晰、 美观度高的感应式液晶显示按键屏。
为达到上述目的, 本发明提供一种感应式液晶显示按键屏, 其主要包 括一单面 ITO玻璃、 一双面 ITO玻璃、 一胶框、 一第一显示电极、 一第一配 向膜、 一第二显示电极、 一第二配向膜、 一液晶、 一第一偏光片、 一感应电极
ITO层、 一第二偏光片。 该胶框安装在该单面 ITO玻璃和该双面 ITO玻璃之 间。 该第一显示电极涂刷在该单面 ITO玻璃的 ITO导电层上, 该第一偏光片 贴在该单面 ITO玻璃另一面上。 该第一配向膜印刷在该第一显示电极上。 该 第二显示电极涂刷在该双面 ITO玻璃的 ΓΓΟ导电层上。 该第二配向膜印 在 第二显示电极上。 该胶框、第一配向膜、第二配向膜之间形成一个封闭的容置 空间, 该液晶装在该容置空间内。该胶框中设有一组导电点, 以导通该第 ^显 示电极和该第二显示电极。 该感应电极 ITO层丝印在该双面 ITO玻璃的 一 ITO导电层上。 该第二偏光片贴在该感应电极 ITO层上。
本发明的优点在于: 本感应式液晶显示按键屏技术融合了电容式触摸屏 和电阻式触摸屏的优点, 改善了他们的缺点。 本技术采用 ITO玻璃上的 ΓΓΟ 层做出感应电极。把传统的按键屏和液晶显示器结合为一整体;将液晶显示器 的表面玻璃基板上做一层透明的导电层 ατο, 氧化铟锡) 感应电极, 通过感 应 IC侦测, 转换输出相应信号给控制器, 从而实现感应功能。 这种方法简化 了生产工艺、 减小了产品厚度、提高了透光率、 并且在感应屏表面可以覆盖任 何非导体保护层 (比如钢化玻璃、 PVC透明膜、 有机玻璃等), 使其不易受到 刮擦损坏。 附图说明
图 1为本感应式液晶显示按键屏的第一实施例的结构图。 图 2为本感应式液晶显示按键屏的第二实施例的结构图。
图 3为本感应式液晶显示按键屏的第三实施例的结构图。
图 4为本感应式液晶显示按键屏的第四实施例的结构图。
图 5为本感应式液晶显示按键屏的第五实施例的结构图。
图 6为本感应式液晶显示按键屏的第六实施例的结构图。
图号说明
1、 单面 ITO玻璃 2、 双面 ITO玻璃 3、 胶框 4、 第一显示电极
5、第一配向膜 6、第二显示电极 7、第二配向膜 8、液晶 9、 感应电极 ITO 层 10、 第一偏光片 11、 第二偏光片 32、 容置空间 34、 导电点 12、 LCD液晶显示器 13、 第三片单面 ITO玻璃 14、 单 面 ITO膜 具体实施方式
下面将结合图 1至图 6对本发明作进一步描述:
请参阅图 1 为本发明的第一实施例: 一种感应式液晶显示按键屏;' 其 主要包括一单面 ITO玻璃 1、 一双面 ΠΌ玻璃 2、 一胶框 3、 一第一显示电极 4、 一第一配向膜 5、 一第二显示电极 6、 一第二配向膜 7、 一液晶 8、 一感应 电极 ITO层 9、 一第一偏光片 10、 一第二偏光片 11、 一 LCD液晶显示器 12。
该单面 ITO玻璃 1、 该双面 ITO玻 2、 该胶框 3、 该第一显示电极 4、 该第一配向膜 5、 该第二显示电极 6、 该第二配向膜 7、 该液晶 8、 该第一偏光 片 10、 一第二偏光片 11, 共同构成了该 LCD液晶显示器 12。
该单面 ITO玻璃 1的 ITO导电层向上。,
该双面 ITO玻璃 2设在该单面 ITO玻璃 1的上方。
该胶框 3安装在该单面 ITO玻璃 1和该双面 ITO玻璃 2之间。
该第一显示电极 4涂刷在该单面 ΓΓΟ玻璃 1的 ITO导电层上。
该第一配向膜 5印刷在该第一显示电极 4上。
该第二显示电极 6涂刷在该双面 ITO玻璃 2的底面的 ITO导电层上。 该第二配向膜 7印刷在第二显示电极 6上。
该胶框 3、第一配向膜 5、第二配向膜 7之间形成一个封闭的容置空间 32, 该液晶 8装在该容置空间 32内。 该胶框 3中设有一组导电点 34, 以导通该第一显示电极 4和该第二显示 电极 6。
该感应电极 ITO层 9丝印在该双面 ITO玻璃 2的顶面的 ITO导电层上。 该第一偏光片 10贴在该单面 ITO玻璃 1的底面上。
该第二偏光片 11贴在该感应电极 ITO层 9的顶面。
按照同一设计原理, 请参阅图 2为本发明的第二实施例:
该单面 ITO玻璃 1的 ITO导电层向下。
其将双面 ITO玻璃 2设在单面 ITO玻璃 1的下方。
该胶框 3安装在该单面 ITO玻璃 1和该双面 ITO玻璃 2之间。
该第一显示电极 4涂刷在该单面 ITO玻璃 1的 ITO导电层上。
该第一配向膜 5印刷在该第一显示电极 4上。
该第二显示电极 6涂刷在该双面 ITO玻璃 2的表面的 ITO导电层上。 该第二配向膜 7印刷在第二显示电极 6上。
该胶框 3、第一配向膜 5、第二配向膜 7之间形成一个封闭的容置空间 2, 该液晶 8装在该容置空间 32内。
该胶框 3中设有一组导电点 34, 以导通该第一显示电极 4和该第二显示 电极 6。
该感应电极 ITO层 9丝印在该双面 ITO玻璃 2的底面的 ITO导电层上。 该第一偏光片 10贴在该单面 ITO玻璃 1的顶面上。
该第二偏光片 11贴在该感应电极 ITO层 9的底面。
按照同一设计原理, 请参阅图 3和图 4为本发明的第三和第四实施例: 其还可以在实施例一或实施例二的 LCD液晶显示器 12的正上方或正下方 安装一第三片单面 ITO玻璃 13, 该感应电极 ITO层 9丝印在该单面 ITO玻璃 13的底面的 ITO导电层上。 - 按照同一设计原理,请参阅图 5和图 6为本发明的第五和第六实施例: 在本实施例中用一单面 ΓΓΟ膜 14, 替换上述第三和第四实施例中的第三 片单面 ITO玻璃 13, 其他结构与第三和第四实施例相同。
本发明的工作原理如下:本发明是利用 ΓΓΟ玻璃或 ITO膜上的透明的 ITO 导电层制成感应电极,通过感应集成电路侦测电容量实现控制功能, 改变了传 统的双面 ITO导通实现触控控制功能, 通过本发明设计本产品具有以下优点: 1、 结构简单, 厚度薄, 安装固定方便, 不占空间, 感应式液晶显示按键屏 把液晶显示器与原有感应按键屏合为一个整体, 结构简单, 整体厚度较 接触式触摸屏的最少要薄 1.8毫米, 且安装方便。
2、 外表面可安装最大厚度达 10毫米的透明板,感应式液晶显示按键屏可不 与外界直接接触, 故使用寿命长, 不会划伤, 环境适应力强。
3、 层数少, 生产流程简单, 成本低, 感应式液晶显示按键屏由于相比接触 式触摸屏结构层次少, 材料和安装生产成本大大降低。
4、 透光度高, 感应式液晶显示按键屏结构层次少, 透光度自然提高。
5、 性能可靠, 感应式液晶显示按键屏因为可以隔离使用, 从而保护了感应 屏不会造成划伤、 磨损或者变形, 性能不受影响, 可在感应式液晶显示 按键屏表面加一定厚度的透明板, 实现不直接接触控制面板实现控制作 用, 这样就不会因为长期使用而灵敏度下降, 其使用寿命远远超出一般 的触摸屏及按键开关,。
6、 环境适应能力强, 应用范围广, 非接触式感应屏因为外表面可以安装装 饰或保护面板, 这样产品的应用范围大为拓展, 使许多耐用消费家,电及 仪表上可以使用。
7、 用户整机装配元^^及材料减少, 因而可靠性及成本大幅下降, 环保性提 冋。
以上所述, 仅是本发明的较佳实施例, 并非对本发明作任何形式上的 限制, 虽然本发明已以较佳实施例揭露如上, 然而并非用以限定本发明, 任何熟悉本专业的技术人员, 在不脱离本发明技术方案范围内, 当可利用 上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例, 但凡 是未脱离本发明技术方案的内容, 依据本发明的技术实质对以上实施例所 作的任何简单修改、 等同变化与修饰, 均仍属于本发明技术方案的保护范 围内。

Claims

权 利 要 求 书
1、 一种感应式液晶显示按键屏, 其主要包括一单面 ITO玻璃、 一双面 ITO玻璃、 一胶框、 一第一显示电极、 一第一配向膜、 一第二显示电极、 一第 二配向膜、 一液晶、 一第一偏光片、 一感应电极 ITO层、 一第二偏光片, 其 特征在于: 该第一显示电极涂刷在该单面 ITO玻璃的 ITO导电层上, 该第一 偏光片贴在该单面 ITO玻璃另一面上。 该第一配向膜印刷在该第一显示电极 上, 该第二显示电极涂刷在该双面 ITO玻璃的的 ITO导电层上, 该第二配向 膜印刷在第二显示电极上, 该胶框、 第一配向膜、 第二配向膜之间形成一个封 闭的容置空间, 该液晶装在该容置空间内, 该胶框中设有一组导电点, 以导通 该第一显示电极和该第二显示电极, 该感应电极 ITO层丝印在该双面 ITO玻 璃的另一 ITO导电层上, 该第二偏光片贴在该感应电极 ITO层上。
2、根据权利要求 1所述的一种感应式液晶显示按键屏, 其特征在于: 在 该 LCD液晶显示器的正上方或正下方还安装有一第三片单面 ITO玻璃, 将感 应电极 ITO层设置在第三片单面 IT0玻璃的 ΓΓΟ层上, 组成感应式液晶显示 按键屏。
3、 根据权利要求 2所述的一种感应式液晶显示按键屏, 其特征在于:, 上述的第三片单面 ITO玻璃可以用一单面 ITO膜替换, 组成感应式液晶显示 按键屏。
PCT/CN2009/001250 2009-09-22 2009-11-12 一种感应式液晶显示按键屏 WO2011035458A1 (zh)

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TWI454809B (zh) * 2011-06-24 2014-10-01 Au Optronics Corp 液晶顯示面板
CN104678633A (zh) * 2015-01-20 2015-06-03 亚世光电股份有限公司 一种键控液晶显示模组
CN104793388A (zh) * 2015-05-12 2015-07-22 江苏锦润光电有限公司 一种触控液晶屏制作工艺

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CN1482495A (zh) * 2002-09-10 2004-03-17 友达光电股份有限公司 组装液晶显示器的电子装置及其锁固方法
CN2890983Y (zh) * 2006-03-28 2007-04-18 蒋实 非接触式感应屏

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CN1482495A (zh) * 2002-09-10 2004-03-17 友达光电股份有限公司 组装液晶显示器的电子装置及其锁固方法
CN2890983Y (zh) * 2006-03-28 2007-04-18 蒋实 非接触式感应屏

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