CN111624807A - 一种纸白型反射式宽视角液晶显示器及其关键工艺 - Google Patents

一种纸白型反射式宽视角液晶显示器及其关键工艺 Download PDF

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CN111624807A
CN111624807A CN202010561185.9A CN202010561185A CN111624807A CN 111624807 A CN111624807 A CN 111624807A CN 202010561185 A CN202010561185 A CN 202010561185A CN 111624807 A CN111624807 A CN 111624807A
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liquid crystal
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李翠新
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Anshan Yes Optoelectronics Display Co ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/137—Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396—Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • G02F1/1397—Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell the twist being substantially higher than 90°, e.g. STN-, SBE-, OMI-LC cells

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

本发明提供一种纸白型反射式宽视角液晶显示器及其关键工艺，所述的液晶显示器包括上ITO玻璃、下ITO玻璃、液晶、上偏光片、下偏光片和边框，所述的液晶嵌于边框内，液晶上下两面分别设置一片ITO玻璃：上ITO玻璃和下ITO玻璃，所述的上偏光片设置于上部的上ITO玻璃上侧，下偏光片设置于下部的下ITO玻璃下侧。在所述的上偏光片的下部至上而下依次贴有两层补偿膜：第一层补偿膜和第二层补偿膜；并且，第一层补偿膜和第二层补偿膜之间的补偿夹角为45°，第一层补偿膜与上偏光片的补偿夹角为90°。利用了两层补偿膜与液晶的有效匹配，可以达到对STN产品的颜色和视角的双重补偿作用，既可以实现使产品外观颜色纸白，又同时实现宽视角显示。

Description

一种纸白型反射式宽视角液晶显示器及其关键工艺
技术领域
本发明涉及液晶显示器技术领域，特别涉及一种纸白型反射式宽视角液晶显示器及其关键工艺。
背景技术
液晶显示器是一种被广泛应用的平面显示器，具有功耗低、外形薄、重量轻以及驱动电压低等特征。液晶显示器本身不能发光，依靠调制外界光实现显示。常规液晶显示方式有适合低路数驱动的TN显示模式、适合高路数驱动的STN显示模式和高对比度的VA显示模式。TN液晶显示器颜色较白，只能低路数驱动；FSTN液晶显示器适合高路数驱动，颜色偏黄或偏蓝；纸白型FSTN液晶显示器可以高路数驱动使用，颜色纸白，但视角较窄。
随着人类科学技术的不断发展，人们实际生活的需要，各种新的显示方式被陆续开发出来。纸白型反射式宽视角液晶显示技术也是其中之一。
发明内容
为了解决背景技术提出的技术问题，本发明提供一种纸白型反射式宽视角液晶显示器及其关键工艺，利用了两层补偿膜与液晶的有效匹配，可以达到对STN产品的颜色和视角的双重补偿作用，既可以实现使产品外观颜色纸白，又同时实现宽视角显示。
为了达到上述目的，本发明采用以下技术方案实现：
一种纸白型反射式宽视角液晶显示器，所述的液晶显示器包括上ITO玻璃、下ITO玻璃、液晶、上偏光片、下偏光片和边框，所述的液晶嵌于边框内，液晶上下两面分别设置一片ITO玻璃：上ITO玻璃和下ITO玻璃，所述的上偏光片设置于上部的上ITO玻璃上侧，下偏光片设置于下部的下ITO玻璃下侧。
本发明的特点在于：在所述的上偏光片的下部至上而下依次贴有两层补偿膜：第一层补偿膜和第二层补偿膜；并且，第一层补偿膜和第二层补偿膜之间的补偿夹角为45°，第一层补偿膜与上偏光片的补偿夹角为90°。
进一步地，所述的液晶显示器为STN模式的液晶显示器。
进一步地，所述的液晶显示器为FSTN模式的液晶显示器。
所述的一种纸白型反射式宽视角液晶显示器的关键工艺，包括如下：
1)使用STN制作技术和生产设备；
2)STN模式的液晶显示器颜色均匀；
3)FSTN模式的液晶显示器颜色纸白，色度均匀、没有色差；
4)上偏光片使用包含两层补偿膜的复合膜偏光片，液晶显示器视角宽。
与现有技术相比，本发明的有益效果是：
利用了两层补偿膜匹配的光学补偿性，与液晶匹配，达到对STN的颜色和视角的双重补偿作用，使产品外观颜色纸白，显示视角宽。
附图说明
图1本发明的一种纸白型反射式宽视角液晶显示器的结构图；
图2是液晶显示器的等对比度图；
图3是本发明的显示原理图。
图中：1-上偏光片 2-第一层补偿膜 3-第二层补偿膜 4-上ITO玻璃 5-边框 6-液晶 7-下ITO玻璃 8-下偏光片。
具体实施方式
以下结合附图对本发明提供的具体实施方式进行详细说明。
如图1-2所示，一种纸白型反射式宽视角液晶显示器，所述的液晶显示器包括上ITO玻璃4、下ITO玻璃7、液晶6、上偏光片1、下偏光片8和边框5，所述的液晶6嵌于边框5内，液晶6上下两面分别设置一片ITO玻璃：上ITO玻璃4和下ITO玻璃7，所述的上偏光片1设置于上部的上ITO玻璃4上侧，下偏光片8设置于下部的下ITO玻璃7下侧。
本发明的特点在于：在所述的上偏光片1的下部至上而下依次贴有两层补偿膜：第一层补偿膜2和第二层补偿膜3；并且，第一层补偿膜2和第二层补偿膜3之间的补偿夹角为45°，第一层补偿膜2与上偏光片1的补偿夹角为90°。液晶层的光程差为△n*d＝840nm。
所述的液晶显示器为STN模式的液晶显示器。
所述的液晶显示器为FSTN模式的液晶显示器。
所述的一种纸白型反射式宽视角液晶显示器的关键工艺，包括如下：
1)STN模式的液晶显示器(LCD部分，即液晶6、ITO玻璃4和7及边框4)底色均匀；
2)FSTN模式的液晶显示器颜色纸白，色度均匀、没有色差；
3)上偏光片1使用包含双层补偿膜的复合膜偏光片，显示视角宽；
4)下偏光片8为反射型，正显模式贴片。
纸白型反射式宽视角液晶显示器主要有以下特性：
1.纸白型反射式宽视角液晶显示器为STN模式，能高路数驱动使用。
2.纸白型反射式宽视角液晶显示器，上偏光片为包含双层补偿膜复合膜偏光片，对各视角显示补偿更充分，视角更宽。
如图3所示，本发明的显示原理为：
①加电压时：光经过上偏光片1时P光被吸收，S光穿过上偏光片1，再穿过两层补偿膜2和3后，变为R旋光，R旋光穿过液晶6，遇下偏光片8被反射，再次穿过液晶6，然后再次穿过两层补偿膜3和2后变为P光，被上偏光片1吸收，呈现黑色画面。
②无电压时：光经过上偏光片1时P光被吸收，S光穿过上偏光片1，再穿过两层补偿膜2和3后，变为R旋光，R旋光穿过液晶6后变为P光，遇下偏光片8被反射，再次穿过液晶6后变为Z旋光，然后再次穿过两层补偿膜3和2后变为S光，S光透过上偏光片1，呈现纸白效果。
以上实施例在以本发明技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于上述的实施例。上述实施例中所用方法如无特别说明均为常规方法。

Claims (4)

1.一种纸白型反射式宽视角液晶显示器，所述的液晶显示器包括上ITO玻璃、下ITO玻璃、液晶、上偏光片、下偏光片和边框，所述的液晶嵌于边框内，液晶上下两面分别设置一片ITO玻璃：上ITO玻璃和下ITO玻璃，所述的上偏光片设置于上部的上ITO玻璃上侧，下偏光片设置于下部的下ITO玻璃下侧；
其特征在于，所述的上偏光片的下部至上而下依次贴有两层补偿膜：第一层补偿膜和第二层补偿膜；并且，第一层补偿膜和第二层补偿膜之间的补偿夹角为45°，第一层补偿膜与上偏光片的补偿夹角为90°。
2.根据权利要求1所述的一种纸白型反射式宽视角液晶显示器，其特征在于，所述的液晶显示器为STN模式的液晶显示器。
3.根据权利要求1所述的一种纸白型反射式宽视角液晶显示器，其特征在于，所述的液晶显示器为FSTN模式的液晶显示器。
4.权利要求1所述的一种纸白型反射式宽视角液晶显示器的关键工艺，其特征在于，包括如下：
1)使用STN制作技术和生产设备；
2)STN模式的液晶显示器颜色均匀；
3)FSTN模式的液晶显示器颜色纸白，色度均匀、没有色差；
4)上偏光片使用包含两层补偿膜的复合膜偏光片，液晶显示器视角宽。
CN202010561185.9A 2020-06-18 2020-06-18 一种纸白型反射式宽视角液晶显示器及其关键工艺 Pending CN111624807A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000122059A (ja) * 1998-10-15 2000-04-28 Toshiba Corp 液晶表示素子
CN1266503A (zh) * 1998-04-28 2000-09-13 时至准钟表股份有限公司 反射式彩色液晶显示装置
US6219122B1 (en) * 1998-09-25 2001-04-17 Alps Electric Co., Ltd. Reflective liquid crystal display device having bright light display and high contrast
CN104155800A (zh) * 2014-07-11 2014-11-19 京东方科技集团股份有限公司 一种反射式液晶显示器
CN212207919U (zh) * 2020-06-18 2020-12-22 亚世光电股份有限公司 一种纸白型反射式宽视角液晶显示器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1266503A (zh) * 1998-04-28 2000-09-13 时至准钟表股份有限公司 反射式彩色液晶显示装置
US6219122B1 (en) * 1998-09-25 2001-04-17 Alps Electric Co., Ltd. Reflective liquid crystal display device having bright light display and high contrast
JP2000122059A (ja) * 1998-10-15 2000-04-28 Toshiba Corp 液晶表示素子
CN104155800A (zh) * 2014-07-11 2014-11-19 京东方科技集团股份有限公司 一种反射式液晶显示器
CN212207919U (zh) * 2020-06-18 2020-12-22 亚世光电股份有限公司 一种纸白型反射式宽视角液晶显示器

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