JPH086014A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH086014A JPH086014A JP6163072A JP16307294A JPH086014A JP H086014 A JPH086014 A JP H086014A JP 6163072 A JP6163072 A JP 6163072A JP 16307294 A JP16307294 A JP 16307294A JP H086014 A JPH086014 A JP H086014A
- Authority
- JP
- Japan
- Prior art keywords
- polarizing plate
- liquid crystal
- crystal display
- display device
- curvature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
Landscapes
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は液晶表示装置の構造に関
し、特に、表示ムラを生じさせない偏光板の形状を有す
る液晶表示装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a liquid crystal display device, and more particularly to a liquid crystal display device having a shape of a polarizing plate which does not cause display unevenness.
【０００２】[0002]
【従来の技術】従来、フィルム型液晶表示装置において
は、フィルム基板と上、下偏光フィルムの軸方向の伸縮
率が違うことと、フィルム基板の剛性が低いことから、
高温高湿環境下にあっては、液晶表示装置に大きな反
り、歪み等が発生し、常温常湿の環境に復帰した場合に
もこれら反り等が解消されず、液晶表示装置の表示性
能、信頼性が低下してしまうという問題があった。2. Description of the Related Art Conventionally, in a film type liquid crystal display device, the expansion and contraction rates of the film substrate and the upper and lower polarizing films in the axial direction are different, and the rigidity of the film substrate is low.
In a high-temperature and high-humidity environment, a large amount of warpage or distortion occurs in the liquid crystal display device, and even if the liquid crystal display device returns to a normal temperature and normal humidity environment, these warpages are not eliminated, and the display performance and reliability There was a problem that it deteriorated.
【０００３】この問題を解決する方法として、特開平４
−３１５１２７、特開平４−２９５８２２が提案されて
いる。この従来技術の構造について図３に示す。図３に
おいて（１）はＰＥＴ（ポリエチレンテレフタレー
ト）、ＰＥＳ（ポリエーテルサルフォン）等から構成さ
れた透明絶縁フィルム基板であり、このフィルム基板
（１）は内部に液晶が封入、封止されるとともに、内周
面に液晶駆動用の透明電極が設けられた一対の基板（１
ａ）（１ｂ）から構成されている。この基板（１）の上
下外周面には、フィルム基板（１）よりも面積の大きい
上、下偏光フィルム（２）（３）が固着されており、こ
の上、下偏光フィルム（２）（３）の４隅には複数の挿
入孔（２ａ）（３ａ）が形成されている。As a method for solving this problem, Japanese Patent Application Laid-Open No. Hei 4
-315127 and Japanese Patent Laid-Open No. 4-295822 are proposed. The structure of this prior art is shown in FIG. In FIG. 3, (1) is a transparent insulating film substrate composed of PET (polyethylene terephthalate), PES (polyether sulfone), etc., and this film substrate (1) has a liquid crystal sealed and sealed inside. , A pair of substrates (1) having transparent electrodes for driving liquid crystal on the inner peripheral surface thereof (1
a) (1b). On the upper and lower outer peripheral surfaces of the substrate (1), lower polarizing films (2) and (3) having a larger area than the film substrate (1) are fixed, and the upper and lower polarizing films (2) and (3) are fixed. A plurality of insertion holes (2a) and (3a) are formed at the four corners of ().
【０００４】挿入孔（２ａ）（３ａ）近傍の上、下偏光
フィルム（２）（３）には、このフィルム（２）（３）
と同一材料であるアセテート材料からなる補強部材
（４）（５）の一方の面が接着されている。また、挿入
孔（２ａ）（３ａ）には保持部材の突起部材が挿入さ
れ、補供部材（４）の他方の面は保持部材に接着されて
いる。挿入孔（２ａ）（３ａ）に補強部材（４）（５）
を介して、保持部材の突起部を挿入することで、上、下
偏光フィルム（２）（３）を対角線方向外方に均一に引
張ることができ、高温高湿環境下に置かれてもフィルム
基板（１）、上、下偏光フィルム（２）（３）に反り、
歪み等の発生を防止し、液晶表示装置の表示性能、信頼
性を向上させるというものである。The upper and lower polarizing films (2) and (3) near the insertion holes (2a) and (3a) are attached to the films (2) and (3).
One surface of the reinforcing members (4) and (5) made of an acetate material which is the same material as the above is bonded. The protruding member of the holding member is inserted into the insertion holes (2a) and (3a), and the other surface of the supplementary member (4) is bonded to the holding member. Reinforcing members (4) and (5) in the insertion holes (2a) and (3a)
The upper and lower polarizing films (2) and (3) can be evenly pulled outward in the diagonal direction by inserting the protrusions of the holding member through the film, and the film can be placed in a high temperature and high humidity environment. The substrate (1), the upper and lower polarizing films (2) and (3) are warped,
It is intended to prevent distortion and the like and improve the display performance and reliability of the liquid crystal display device.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の技術においては、上、下偏光フィルムの反
り、歪みを防止するために補強部材（４）（５）を接着
し、補強部材の突起部により上、下偏光フィルム（２）
（３）を対角線方向外方に均一に引張ることが必要とさ
れている。これにより製造コスト上昇を招くという問題
があった。また特開昭６３−８７０４には、偏光性フィ
ルムの片面を凹凸にすることにより歪みを軽減するこ
と、及びリコー特開平４−３６８９１３には偏光板を接
着剤層で接着し、固型化した接着剤層とし、接着剤層の
厚みを偏光板の伸縮差による変位に影響されない厚みと
することにより、歪みを防止することが提案されている
が、これとても同様の問題があった。本発明は、製造コ
スト上昇を招くことなく、液晶表示装置の表示性能、信
頼性を向上することができる偏光板の形状を有する液晶
表示装置を提供することを目的としている。However, in such a conventional technique, the reinforcing members (4) and (5) are adhered to each other in order to prevent the upper and lower polarizing films from warping and distortion, and the protrusions of the reinforcing members are adhered. Upper and lower polarizing film (2)
It is necessary to pull (3) uniformly diagonally outward. As a result, there is a problem that the manufacturing cost increases. Further, in JP-A-63-8704, distortion is reduced by making one surface of a polarizing film uneven, and in Ricoh JP-A-4-368913, a polarizing plate is adhered with an adhesive layer and solidified. It has been proposed to prevent distortion by using an adhesive layer and making the thickness of the adhesive layer not affected by the displacement due to the difference in expansion and contraction of the polarizing plate, but there was a very similar problem. It is an object of the present invention to provide a liquid crystal display device having a shape of a polarizing plate that can improve the display performance and reliability of the liquid crystal display device without increasing the manufacturing cost.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記課題を解
決するために、一対のガラス基板表面の偏光板の四端に
曲率を持たせたことを特徴としている。さらに好ましく
は、本発明は前記課題を解決するために、偏光板の四端
の曲率は偏光フィルムの延伸軸方向に対するコーナ部の
方が他方のコーナ部の曲率より大きいことを特徴として
いる。In order to solve the above-mentioned problems, the present invention is characterized in that the four ends of the polarizing plates on the surface of the pair of glass substrates have curvature. More preferably, the present invention is characterized in that, in order to solve the above-mentioned problems, the curvature at the four ends of the polarizing plate is larger in the corner portion in the stretching axis direction of the polarizing film than in the other corner portion.
【０００７】[0007]
【作用】高温高湿環境下において延伸軸方向に偏光板は
縮もうとするが、粘着材でガラスに固定されているた
め、従来の四端が直角の偏光板構造では偏光板周辺部と
中央部での歪量差が大きく、表示ムラ不良が発生してい
た。本発明においては、偏光板の四端に曲率を持たせる
ことで、高温高湿環境下において延伸軸方向に偏光板が
縮もうとした場合、偏光板四端にかかる歪量が分散され
るため、偏光板中央部と周辺部での歪量差を低減し、表
示領域周辺の光学特性が変化することによる表示ムラ不
良を減少できるという作用をするものである。また、偏
光板四端の曲率を延伸軸方向コーナ部の方を他方のコー
ナ部より大きくすることで、伸縮の大きい延伸軸方向の
歪量がより分散されるため、表示領域周辺の光学特性の
変化による表示ムラ不良が無くなるという作用を有する
ものである。[Function] In a high temperature and high humidity environment, the polarizing plate tries to shrink in the direction of the stretching axis, but since it is fixed to the glass with an adhesive material, in the conventional polarizing plate structure with four right angles, the periphery and center of the polarizing plate The difference in the amount of distortion between the parts was large, and defective display unevenness occurred. In the present invention, by providing curvature at the four ends of the polarizing plate, the amount of strain applied to the four ends of the polarizing plate is dispersed when the polarizing plate tries to shrink in the stretching axis direction under high temperature and high humidity environment. The function of reducing the difference in strain amount between the central portion and the peripheral portion of the polarizing plate and reducing the display unevenness defect due to the change of the optical characteristics around the display area is exerted. Further, by making the curvature at the four ends of the polarizing plate larger in the stretching axial direction corner portion than in the other corner portion, the strain amount in the stretching axial direction, which has a large expansion and contraction, is more dispersed, so that the optical characteristics around the display region This has the effect of eliminating defective display unevenness due to changes.
【０００８】[0008]
【実施例】以下、本発明を実施例に基づいて説明する。 ［実施例１］図１（ａ）（ｂ）は、本発明の偏光板形状
を有する液晶表示装置の第１実施例を示す平面図及び断
面図である。図１（ａ）（ｂ）において、それぞれ厚さ
１．１mmのＴＦＴ基板（１１）、カラーフィルター基板
（１２）よりなる液晶表示パネルの表面に厚さ０．２２
mmの偏光板（１３）が形成されている。前記偏光板（１
３）の延伸軸方向は（１４）である。EXAMPLES The present invention will be described below based on examples. [Embodiment 1] FIGS. 1A and 1B are a plan view and a sectional view showing a first embodiment of a liquid crystal display device having a polarizing plate shape of the present invention. 1 (a) and 1 (b), a thickness of 0.22 is formed on the surface of a liquid crystal display panel including a TFT substrate (11) and a color filter substrate (12) each having a thickness of 1.1 mm.
A mm polarizing plate (13) is formed. The polarizing plate (1
The stretching axis direction of 3) is (14).
【０００９】この偏光板（１３）の延伸軸方向（１４）
のコーナ部（１５）の曲率の半径を５mm、その他のコー
ナ部（１６）の曲率の半径を５mmとした。この液晶表示
パネルを、高温高湿（６０度、９０％ＲＨ）の環境に放
置し、５００時間後に、表示状態を確認したところ、表
１に示す如く表示領域周辺の光学特性変化による表示ム
ラ不良発生率は１０％と、従来の四端が直角の偏光板形
状の場合の表示ムラ不良発生率１００％に比べ大巾に低
減した。The stretching axis direction (14) of this polarizing plate (13)
The radius of curvature of the corner portion (15) was 5 mm, and the radius of curvature of the other corner portions (16) was 5 mm. This liquid crystal display panel was left in an environment of high temperature and high humidity (60 degrees, 90% RH), and after 500 hours, the display state was confirmed. As shown in Table 1, defective display unevenness due to changes in optical characteristics around the display area was observed. The rate of occurrence was 10%, which was much smaller than the rate of occurrence of defective display unevenness of 100% in the case of the conventional polarizing plate shape with four right angles.
【００１０】［実施例２］図２（ａ）（ｂ）は、本発明
の偏光板形状を有する液晶表示装置の第２実施例を示す
平面図及び断面図である。本実施例では、前記実施例１
と同様の構成には同一番号を付して説明を省略する。図
２において偏光板（１３）の延伸軸方向（１４）のコー
ナ部（１７）の曲率の半径を１０mm、その他のコーナ部
（１８）の曲率の半径を５mmとした。この液晶表示パネ
ルを高温高湿１６０度、９０％ＲＨ）の環境に放置し、
５００時間後に表示状態を確認したところ、表１に示す
如く表示領域周辺の光学特性変化による表示ムラ不良発
生率は０％と、従来の四端が直角の偏光板形状の場合の
表示ムラ不良発生率１００％に比べ全く発生しなくなっ
た。[Embodiment 2] FIGS. 2A and 2B are a plan view and a sectional view showing a second embodiment of a liquid crystal display device having a polarizing plate shape of the present invention. In the present embodiment, the first embodiment
The same numbers are given to the same configurations as those and the description thereof is omitted. In FIG. 2, the radius of curvature of the corner portion (17) of the polarizing plate (13) in the stretching axis direction (14) was 10 mm, and the radius of curvature of the other corner portions (18) was 5 mm. This liquid crystal display panel is left in an environment of high temperature and high humidity of 160 degrees and 90% RH),
When the display state was confirmed after 500 hours, as shown in Table 1, the occurrence rate of defective display unevenness due to the change in optical characteristics around the display area was 0%, and the defective display unevenness occurred in the case of the conventional polarizing plate shape having four right angles. It did not occur at all compared to the rate of 100%.
【００１１】[0011]
【表１】 [Table 1]
【００１２】[0012]
【発明の効果】以上説明したように本発明は、偏光板の
四端に曲率を持たせることで、高温高湿環境下におい
て、延伸軸方向に偏光板が縮もうとした場合、偏光板四
端にかかる歪量が分散されるため、偏光板中央部と周辺
部での歪量差が低減し、表示領域周辺の光学特性が変化
することによる表示ムラが低減する。更に、偏光板延伸
軸方向コーナ部の曲率を他方のコーナ部より大きくする
ことで、表示領域周辺の光学特性変化による表示ムラ不
良の発生を無くすことができる。以上本発明により、偏
光板の形状を工夫することのみで、製造コストの上昇を
招くことなく、液晶表示装置の表示性能、信頼性を向上
することができるという効果を奏するものである。As described above, according to the present invention, by providing the four ends of the polarizing plate with curvature, when the polarizing plate shrinks in the stretching axis direction in a high temperature and high humidity environment, the polarizing plate Since the amount of strain applied to the edges is dispersed, the difference in strain amount between the central portion and the peripheral portion of the polarizing plate is reduced, and display unevenness due to changes in optical characteristics around the display region is reduced. Further, by setting the curvature of the polarizing plate stretching axial direction corner portion to be larger than that of the other corner portion, it is possible to prevent the occurrence of display unevenness defects due to changes in optical characteristics around the display region. As described above, according to the present invention, it is possible to improve the display performance and reliability of the liquid crystal display device without increasing the manufacturing cost only by devising the shape of the polarizing plate.
【図１】 （ａ）は本発明の第１実施例の平面図、
（ｂ）は断面図。FIG. 1A is a plan view of a first embodiment of the present invention,
(B) is a sectional view.
【図２】 （ａ）は本発明の第２実施例の平面図、
（ｂ）は断面図。2A is a plan view of a second embodiment of the present invention, FIG.
(B) is a sectional view.
【図３】 従来の液晶表示装置の構造図で、（ａ）は断
面図、（ｂ）は上面図3A and 3B are structural views of a conventional liquid crystal display device, in which FIG. 3A is a sectional view and FIG. 3B is a top view.
１ 透明絶縁フィルム基板 ２，３ 偏光フィルム ４，５ 補強部材 ２ａ，３ａ 挿入孔 １１ ＴＦＴ基板 １２ カラーフィルタ基板 １３ 偏光板 １４ 延伸軸方向 1 Transparent Insulating Film Substrate 2, 3 Polarizing Film 4, 5 Reinforcing Member 2a, 3a Insertion Hole 11 TFT Substrate 12 Color Filter Substrate 13 Polarizing Plate 14 Stretching Axis Direction
Claims (2)
板の間に液晶を挟持した液晶表示装置において、前記ガ
ラス基板表面の前記偏光板の四端に曲率を持たせたこと
を特徴とする液晶表示装置。1. A liquid crystal display device in which a liquid crystal is sandwiched between a pair of glass substrates to which a polarizing plate is attached, wherein the four ends of the polarizing plate on the surface of the glass substrate have curvature. Liquid crystal display device.
延伸軸方向に対するコーナ部の方が、他方のコーナ部の
曲率より大きいことを特徴とする請求項１記載の液晶表
示装置。2. The liquid crystal display device according to claim 1, wherein the curvature at the four ends of the polarizing plate is larger in the corner portion with respect to the stretching axis direction of the polarizing film than in the other corner portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6163072A JP2751835B2 (en) | 1994-06-22 | 1994-06-22 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6163072A JP2751835B2 (en) | 1994-06-22 | 1994-06-22 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH086014A true JPH086014A (en) | 1996-01-12 |
| JP2751835B2 JP2751835B2 (en) | 1998-05-18 |
Family
ID=15766655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6163072A Expired - Fee Related JP2751835B2 (en) | 1994-06-22 | 1994-06-22 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2751835B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140125921A1 (en) * | 2012-11-05 | 2014-05-08 | Omron Corporation | Resin sheet producing method, optical member produced by resin sheet producing method, area light source device in which optical member is used, liquid crystal display device, and mobile device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS629283U (en) * | 1985-06-30 | 1987-01-20 | ||
| JPS62156619A (en) * | 1985-12-28 | 1987-07-11 | Toshiba Corp | Television system device for three-dimensional vision |
| JPS63180933A (en) * | 1987-01-21 | 1988-07-26 | Alps Electric Co Ltd | Stn type liquid crystal display element |
| JPH01159285U (en) * | 1988-04-20 | 1989-11-02 | ||
| JPH01315723A (en) * | 1988-03-23 | 1989-12-20 | Seiko Instr Inc | Optical writing type liquid crystal light valve |
| JPH02109560A (en) * | 1988-09-09 | 1990-04-23 | E R Squibb & Sons Inc | Improved bandage |
-
1994
- 1994-06-22 JP JP6163072A patent/JP2751835B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS629283U (en) * | 1985-06-30 | 1987-01-20 | ||
| JPS62156619A (en) * | 1985-12-28 | 1987-07-11 | Toshiba Corp | Television system device for three-dimensional vision |
| JPS63180933A (en) * | 1987-01-21 | 1988-07-26 | Alps Electric Co Ltd | Stn type liquid crystal display element |
| JPH01315723A (en) * | 1988-03-23 | 1989-12-20 | Seiko Instr Inc | Optical writing type liquid crystal light valve |
| JPH01159285U (en) * | 1988-04-20 | 1989-11-02 | ||
| JPH02109560A (en) * | 1988-09-09 | 1990-04-23 | E R Squibb & Sons Inc | Improved bandage |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140125921A1 (en) * | 2012-11-05 | 2014-05-08 | Omron Corporation | Resin sheet producing method, optical member produced by resin sheet producing method, area light source device in which optical member is used, liquid crystal display device, and mobile device |
| CN103801745A (en) * | 2012-11-05 | 2014-05-21 | 欧姆龙株式会社 | Resin sheet producing method, optical member, area light source device, liquid crystal display device, and mobile device |
| US9618180B2 (en) * | 2012-11-05 | 2017-04-11 | Omron Corporation | Resin sheet producing method, optical member produced by resin sheet producing method, area light source device in which optical member is used, liquid crystal display device, and mobile device |
| CN103801745B (en) * | 2012-11-05 | 2017-12-19 | 欧姆龙株式会社 | Manufacture method, optical component, planar light source device, liquid crystal display device and the mobile device of resin-made sheet material |
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| JP2751835B2 (en) | 1998-05-18 |
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