WO2014061469A1 - Liquid crystal display device - Google Patents
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- WO2014061469A1 WO2014061469A1 PCT/JP2013/077072 JP2013077072W WO2014061469A1 WO 2014061469 A1 WO2014061469 A1 WO 2014061469A1 JP 2013077072 W JP2013077072 W JP 2013077072W WO 2014061469 A1 WO2014061469 A1 WO 2014061469A1
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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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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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
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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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/56—Substrates having a particular shape, e.g. non-rectangular
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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
- G02F2202/00—Materials and properties
- G02F2202/22—Antistatic materials or arrangements
Definitions
- the present invention relates to a liquid crystal display device mounted on an automobile or the like, and more particularly to a liquid crystal display device having an antistatic structure.
- liquid crystal display devices generally have a structure in which static electricity charged on the surface of the liquid crystal display panel is released to the circuit board by metal cell restraints or lead pins for holding the liquid crystal display panel housed in the case,
- a liquid crystal display panel is known which is electrically connected to a circuit board by a flexible printed circuit board or the like.
- the present invention provides a liquid crystal display panel that forms a display unit by providing a transparent electrode on the inner surface of a pair of insulating substrates provided behind a front panel and encapsulating liquid crystal,
- a liquid crystal display device comprising a flexible printed wiring board electrically connected to the liquid crystal display panel,
- the flexible printed wiring board has a branch piece that is not conductively connected to the liquid crystal display panel, The branch piece is in contact with the front panel.
- the branch piece comes into contact with a buffer member disposed on the surface side of the insulating substrate.
- the front panel has an edge portion surrounding the display area of the liquid crystal display panel.
- the branch piece has a conductive portion in contact with the front panel, and the conductive portion is on the front side of the branch piece.
- the insulating substrate having the larger surface area is disposed on the front surface side, and the branching piece is disposed on the larger surface area via the buffer member.
- liquid crystal display device capable of preventing adverse effects on the liquid crystal display panel due to static electricity charged on the front panel.
- FIG. 3 is a cross-sectional view taken along line AA of the turning member, the front panel, and the liquid crystal display panel when the liquid crystal display device is assembled.
- the liquid crystal display device includes a turn-back member 1 made of an impermeable resin, a light-transmissive front panel 2, a transmissive liquid crystal display panel 3, and a rear surface side of the liquid crystal display panel 3.
- a light guide member 4 an optical film 5 such as a diffusion sheet or a prism sheet disposed between the liquid crystal display panel 3 and the light guide member 4, a liquid crystal display panel 3, a light guide member 4, and an optical film 5.
- a flexible printed wiring board 31 as a conductive connecting member for connecting the liquid crystal display panel 3 and the circuit board.
- the facing member 1 is made of an impermeable synthetic resin, has a hook engaging portion (not shown) on the inner peripheral portion, and is a front panel 2 housed in a cell case 6, a liquid crystal display The upper side of the panel 3, the optical film 5, and the light guide member 4 is covered, and the hook engaging portion and the engaging portion (not shown) of the cell case 6 are engaged.
- the front panel 2 is made of a permeable sheet material, and an impermeable edge 21 that defines the visible range of the liquid crystal display panel 3 is provided on the front surface or the back surface by printing or the like.
- the liquid crystal display panel 3 encloses liquid crystal molecules between a front glass substrate 3A and a rear glass substrate 3B having a smaller surface area than the front glass substrate 3A, as is well known. , 3B with a polarizing film pasted.
- the flexible printed wiring board 31 is obtained by forming a plurality of conductive paths with a predetermined pattern on a base material made of an insulating material such as polyimide resin by using a conductive material such as copper.
- the conductive part is covered with a cover film made of an insulating material except for a part, and the exposed conductive part is plated with a conductive reinforcing material such as nickel or gold to form an electrode terminal part. .
- the flexible printed wiring board 31 has an L-shaped branch piece 311 made of the same insulating material. As shown in FIG. 3, the branch piece 311 is buffered with the edge portion 21 of the front panel 2. It is arranged between the member 32.
- the buffer member 32 is bonded to the front glass substrate 3A with an adhesive such as a double-sided seal.
- the buffer member 32 is formed of, for example, a sponge-like material, and is pressed against the front panel 2 and the front glass substrate 3 ⁇ / b> A when the turn-back member 1 and the cell case 6 are engaged.
- the branch piece 311 is provided with a conductive portion 312 on the front side thereof.
- the conductive portion 312 comes into contact with the front panel 2, static electricity charged on the front panel 2 is transferred from the branch piece 311 to the flexible print.
- the wiring board 3 is grounded to a circuit board (not shown). At this time, since the buffer member 32 is formed of an insulating material, static electricity transmitted to the conductive portion 312 is not electrically conducted to the liquid crystal display panel 3.
- the liquid crystal display device of the present invention includes a facing member 1, a front panel 2 provided behind the facing member 1, and a pair of insulating substrates (glass) provided behind the front panel 2 and sealed with liquid crystal.
- a liquid crystal display device comprising: a liquid crystal display panel 3 that forms a display section by providing transparent electrodes on the inner surfaces of 3A and 3B; and a flexible printed wiring board 31 that is electrically connected to the liquid crystal display panel 3
- the flexible printed wiring board 31 has a branch piece 311 that is not conductively connected to the liquid crystal display panel 3. Since the branch piece 311 is provided so as to contact the buffer member 32 disposed on the surface side of the insulating substrate, the static electricity charged on the front panel 2 can be grounded to the circuit board. Can prevent adverse effects.
- the buffer member 32 is made of an elastic member, so that the front panel 2 and the front glass substrate 3A are pressed against the front panel 2 so that static electricity charged in the front panel 2 is transferred from the front panel 2 to the liquid crystal display panel. 3 can be prevented from conducting electricity.
- the front panel 2 has the edge portion 21 surrounding the periphery of the liquid crystal display panel 3, thereby bringing the conductive portion 312 into contact with the outside of the display area of the front panel 2. Therefore, a liquid crystal display device with good appearance can be provided.
- the flexible printed wiring board 31 includes a branch piece 311 having a conductive portion 312 that contacts the front panel 2, and the conductive portion 312 is on the front side of the branch piece 311.
- the front panel 2 can be reliably brought into contact.
- the liquid crystal display panel 3 is arranged on the front side of the two glass substrates 3A and 3B with the larger surface area, and the branch piece 311 is placed on the front glass base 3A. Is provided via the buffer member 32, so that the conductive portion 312 of the flexible printed wiring board 31 can come into contact with the front panel 2, so that the static electricity charged in the front panel 2 is released to the circuit board. It becomes possible.
- the present invention can be applied to a vehicle meter that displays vehicle information, and is particularly applicable to a meter or the like equipped with a liquid crystal display panel.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The purpose of the present invention is to provide a liquid crystal display device capable of preventing a liquid crystal display panel from being adversely affected by static electricity with which a front-surface panel is charged. This liquid crystal display device includes a facing member (1), a front surface panel (2) provided behind the facing member (1), the liquid crystal display panel, in which a display unit is formed by a transparent electrode being provided on an inner surface of each of a pair of liquid-crystal-sealing insulation substrates (3A, 3B) provided behind the front surface panel (2), and a flexible printed circuit board (31) energizingly connected to the liquid crystal display panel with a prescribed connecting member interposed therebetween. The flexible printed circuit board (31) has a branch piece (311) that is not energizingly connected to the liquid crystal display panel, the branch piece (311) abutting the front-surface panel (2).
Description
本発明は、自動車等に搭載される液晶表示装置に関し、特に静電気防止構造を備えた液晶表示装置に関するものである。
The present invention relates to a liquid crystal display device mounted on an automobile or the like, and more particularly to a liquid crystal display device having an antistatic structure.
従来の液晶表示装置は、ケースに収納された液晶表示パネルを保持するための金属製セル抑えやリードピンなどによって、液晶表示パネルの表面に帯電した静電気を回路基板に逃す構造が一般的であり、液晶表示パネルは、フレキシブルプリント基板などによって回路基板と電気的に接続されるものが知られている。
Conventional liquid crystal display devices generally have a structure in which static electricity charged on the surface of the liquid crystal display panel is released to the circuit board by metal cell restraints or lead pins for holding the liquid crystal display panel housed in the case, A liquid crystal display panel is known which is electrically connected to a circuit board by a flexible printed circuit board or the like.
しかしながら、例えば、可視範囲を決める透過性パネルなどを液晶の前面に配置する場合、パネルに帯電した静電気が液晶表示パネルに落ちてしまい、液晶表示パネルの誤作動や破損などが生じるといった問題があった。
However, for example, when a transparent panel or the like that determines the visible range is disposed on the front surface of the liquid crystal, static electricity charged on the panel falls on the liquid crystal display panel, causing a malfunction or breakage of the liquid crystal display panel. It was.
そこで本発明は、前面パネルの背後に設けられ、液晶を封止した一対の絶縁基板の内側表面に透明電極が各々設けられることで表示部を形成する液晶表示パネルと、
前記液晶表示パネルと導通接続されるフレキシブルプリント配線板と、を備えた液晶表示装置において、
前記フレキシブルプリント配線板は、前記液晶表示パネルと導通接続されない分岐片を有し、
前記分岐片は、前記前面パネルに当接するものである。 Accordingly, the present invention provides a liquid crystal display panel that forms a display unit by providing a transparent electrode on the inner surface of a pair of insulating substrates provided behind a front panel and encapsulating liquid crystal,
In a liquid crystal display device comprising a flexible printed wiring board electrically connected to the liquid crystal display panel,
The flexible printed wiring board has a branch piece that is not conductively connected to the liquid crystal display panel,
The branch piece is in contact with the front panel.
前記液晶表示パネルと導通接続されるフレキシブルプリント配線板と、を備えた液晶表示装置において、
前記フレキシブルプリント配線板は、前記液晶表示パネルと導通接続されない分岐片を有し、
前記分岐片は、前記前面パネルに当接するものである。 Accordingly, the present invention provides a liquid crystal display panel that forms a display unit by providing a transparent electrode on the inner surface of a pair of insulating substrates provided behind a front panel and encapsulating liquid crystal,
In a liquid crystal display device comprising a flexible printed wiring board electrically connected to the liquid crystal display panel,
The flexible printed wiring board has a branch piece that is not conductively connected to the liquid crystal display panel,
The branch piece is in contact with the front panel.
また本発明は、前記分岐片は、前記絶縁基板の表面側に配置された緩衝部材と当接するものである。
Further, according to the present invention, the branch piece comes into contact with a buffer member disposed on the surface side of the insulating substrate.
また本発明は、前記前面パネルは、前記液晶表示パネルの表示領域を囲う縁部を有しているものである。
In the present invention, the front panel has an edge portion surrounding the display area of the liquid crystal display panel.
また本発明は、前記分岐片は、前記前面パネルと当接する導電部を有し、前記導電部は前記分岐片の前面側にあるものである。
Further, according to the present invention, the branch piece has a conductive portion in contact with the front panel, and the conductive portion is on the front side of the branch piece.
また本発明は、前記液晶表示パネルは、前記絶縁基板のうち表面積が大きい方が前面側に配置され、前記分岐片は前記表面積が大きい方に前記緩衝部材を介して配置されるものである。
Further, according to the present invention, in the liquid crystal display panel, the insulating substrate having the larger surface area is disposed on the front surface side, and the branching piece is disposed on the larger surface area via the buffer member.
本発明によれば、前面パネルに帯電した静電気による液晶表示パネルへの悪影響を防ぐことが可能な液晶表示装置を提供することができる。
According to the present invention, it is possible to provide a liquid crystal display device capable of preventing adverse effects on the liquid crystal display panel due to static electricity charged on the front panel.
以下、本発明の実施形態に係る液晶表示装置を添付の図面を参照して具体的に説明する。
Hereinafter, a liquid crystal display device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
本実施形態の液晶表示装置は、不透過性樹脂から形成された見返し部材１と、光透過性の前面パネル２と、透過型の液晶表示パネル３と、この液晶表示パネル３の裏面側に配置された導光部材４と、液晶表示パネル３と導光部材４との間に配置された拡散シートやプリズムシートなどの光学フィルム５と、液晶表示パネル３，導光部材４および光学フィルム５が保持されるセルケース６と、このセルケース６の背後（液晶表示パネル１の背後でもある）に配置された硬質の回路基板（図示せず）と、この回路基板上に実装され液晶表示パネル１を照明する光源としての発光ダイオード（図示せず）と、液晶表示パネル３と回路基板とを繋ぐ導電性の接続部材としてのフレキシブルプリント配線板３１を備えている。
The liquid crystal display device according to the present embodiment includes a turn-back member 1 made of an impermeable resin, a light-transmissive front panel 2, a transmissive liquid crystal display panel 3, and a rear surface side of the liquid crystal display panel 3. A light guide member 4, an optical film 5 such as a diffusion sheet or a prism sheet disposed between the liquid crystal display panel 3 and the light guide member 4, a liquid crystal display panel 3, a light guide member 4, and an optical film 5. A cell case 6 to be held, a hard circuit board (not shown) disposed behind the cell case 6 (also behind the liquid crystal display panel 1), and the liquid crystal display panel 1 mounted on the circuit board 1 And a flexible printed wiring board 31 as a conductive connecting member for connecting the liquid crystal display panel 3 and the circuit board.
見返し部材１は、不透過性の合成樹脂から形成されたものであり、内周部にフック係合部（図示せず）を有し、セルケース６内に収納された前面パネル２、液晶表示パネル３、光学フィルム５と、導光部材４との上側を覆い、フック係合部とセルケース６の係止部（図示せず）とが係合される。
The facing member 1 is made of an impermeable synthetic resin, has a hook engaging portion (not shown) on the inner peripheral portion, and is a front panel 2 housed in a cell case 6, a liquid crystal display The upper side of the panel 3, the optical film 5, and the light guide member 4 is covered, and the hook engaging portion and the engaging portion (not shown) of the cell case 6 are engaged.
前面パネル２は、透過性のシート材からなり、表面もしくは裏面に液晶表示パネル３の可視範囲を定める不透過性の縁部２１が印刷などにより施されている。
The front panel 2 is made of a permeable sheet material, and an impermeable edge 21 that defines the visible range of the liquid crystal display panel 3 is provided on the front surface or the back surface by printing or the like.
液晶表示パネル３は、詳細は図示しないが周知の如く、前側ガラス基板３Ａと、前側ガラス基板３Ａよりも表面積が小さい後側ガラス基板３Ｂとの間に液晶分子を封入し、各々のガラス基板３Ａ，３Ｂに偏光膜を貼ったものである。
Although not shown in detail, the liquid crystal display panel 3 encloses liquid crystal molecules between a front glass substrate 3A and a rear glass substrate 3B having a smaller surface area than the front glass substrate 3A, as is well known. , 3B with a polarizing film pasted.
フレキシブルプリント配線板３１は、ポリイミド樹脂等の絶縁性素材からなる基材上に、銅等の導電性素材により所定のパターンの導電路が複数形成されたものである。この導電部は、一部を除き絶縁性素材からなるカバーフィルムにより被覆され、露出された導電部には、ニッケル、金等の導電性補強材のメッキが施され電極端子部が形成されている。
The flexible printed wiring board 31 is obtained by forming a plurality of conductive paths with a predetermined pattern on a base material made of an insulating material such as polyimide resin by using a conductive material such as copper. The conductive part is covered with a cover film made of an insulating material except for a part, and the exposed conductive part is plated with a conductive reinforcing material such as nickel or gold to form an electrode terminal part. .
また、フレキシブルプリント配線板３１は、同一の絶縁性素材からなるＬ字型の分岐片３１１を有しており、図３に示すように、その分岐片３１１は前面パネル２の縁部２１と緩衝部材３２との間に配置されている。
Further, the flexible printed wiring board 31 has an L-shaped branch piece 311 made of the same insulating material. As shown in FIG. 3, the branch piece 311 is buffered with the edge portion 21 of the front panel 2. It is arranged between the member 32.
緩衝部材３２は、両面シールなどの接着剤によって前側ガラス基板３Ａに接着されている。また、緩衝部材３２は、例えばスポンジ状の材料から形成され、見返し部材１とセルケース６とが係合されることによって、前面パネル２と前側ガラス基板３Ａとに押圧される。
The buffer member 32 is bonded to the front glass substrate 3A with an adhesive such as a double-sided seal. The buffer member 32 is formed of, for example, a sponge-like material, and is pressed against the front panel 2 and the front glass substrate 3 </ b> A when the turn-back member 1 and the cell case 6 are engaged.
分岐片３１１には、その前面側に導電部３１２が設けられてあり、この導電部３１２と、前面パネル２とが当接することによって、前面パネル２に帯電した静電気が、分岐片３１１からフレキシブルプリント配線板３を通り、図示しない回路基板へとアースされる。このとき、緩衝部材３２は絶縁素材によって形成されているため、導電部３１２に伝わる静電気が、液晶表示パネル３に電気伝導することはない。
The branch piece 311 is provided with a conductive portion 312 on the front side thereof. When the conductive portion 312 comes into contact with the front panel 2, static electricity charged on the front panel 2 is transferred from the branch piece 311 to the flexible print. The wiring board 3 is grounded to a circuit board (not shown). At this time, since the buffer member 32 is formed of an insulating material, static electricity transmitted to the conductive portion 312 is not electrically conducted to the liquid crystal display panel 3.
このように、本願発明の液晶表示装置は、見返し部材１と、見返し部材１の背後に設けられる前面パネル２と、前面パネル２の背後に設けられ、液晶を封止した一対の絶縁基板（ガラス基板）３Ａ、３Ｂの内側表面に透明電極が各々設けられることで表示部を形成する液晶表示パネル３と、液晶表示パネル３と導通接続されるフレキシブルプリント配線板３１と、を備えた液晶表示装置において、フレキシブルプリント配線板３１は、液晶表示パネル３と導通接続されない分岐片３１１を有し、
分岐片３１１は、絶縁基板の表面側に配置された緩衝部材３２に当接するように設けられることによって、前面パネル２に帯電する静電気を回路基板にアースすることができるので、静電気による液晶表示パネルへの悪影響を防ぐことができる。 As described above, the liquid crystal display device of the present invention includes a facingmember 1, a front panel 2 provided behind the facing member 1, and a pair of insulating substrates (glass) provided behind the front panel 2 and sealed with liquid crystal. Substrate) A liquid crystal display device comprising: a liquid crystal display panel 3 that forms a display section by providing transparent electrodes on the inner surfaces of 3A and 3B; and a flexible printed wiring board 31 that is electrically connected to the liquid crystal display panel 3 The flexible printed wiring board 31 has a branch piece 311 that is not conductively connected to the liquid crystal display panel 3.
Since the branch piece 311 is provided so as to contact the buffer member 32 disposed on the surface side of the insulating substrate, the static electricity charged on thefront panel 2 can be grounded to the circuit board. Can prevent adverse effects.
分岐片３１１は、絶縁基板の表面側に配置された緩衝部材３２に当接するように設けられることによって、前面パネル２に帯電する静電気を回路基板にアースすることができるので、静電気による液晶表示パネルへの悪影響を防ぐことができる。 As described above, the liquid crystal display device of the present invention includes a facing
Since the branch piece 311 is provided so as to contact the buffer member 32 disposed on the surface side of the insulating substrate, the static electricity charged on the
また、本願発明の液晶表示装置は、緩衝部材３２は、弾性部材からなることによって、前面パネル２と前側ガラス基板３Ａとに押圧され、前面パネル２に帯電した静電気が前面パネル２から液晶表示パネル３に電気伝導することを防ぐことができる。
Further, in the liquid crystal display device of the present invention, the buffer member 32 is made of an elastic member, so that the front panel 2 and the front glass substrate 3A are pressed against the front panel 2 so that static electricity charged in the front panel 2 is transferred from the front panel 2 to the liquid crystal display panel. 3 can be prevented from conducting electricity.
また、本願発明の液晶表示装置は、前面パネル２は、液晶表示パネル３の周縁を囲う縁部２１を有していることによって、導電部３１２を前面パネル２の表示領域外に当接させることができるので見栄えのよい液晶表示装置を提供することができる。
Further, in the liquid crystal display device of the present invention, the front panel 2 has the edge portion 21 surrounding the periphery of the liquid crystal display panel 3, thereby bringing the conductive portion 312 into contact with the outside of the display area of the front panel 2. Therefore, a liquid crystal display device with good appearance can be provided.
また、本願発明の液晶表示装置は、フレキシブルプリント配線板３１は、前面パネル２と当接する導電部３１２を有した分岐片３１１を備え、導電部３１２は分岐片３１１の前面側にあることによって、確実に前面パネル２と当接させることができる。
In the liquid crystal display device of the present invention, the flexible printed wiring board 31 includes a branch piece 311 having a conductive portion 312 that contacts the front panel 2, and the conductive portion 312 is on the front side of the branch piece 311. The front panel 2 can be reliably brought into contact.
また、本願発明の液晶表示装置は、液晶表示パネル３は、２枚のガラス基板３Ａ，３Ｂのうち表面積が大きい方が前側に配置され、分岐片３１１は前側ガラス基３Ａの方に分岐片３１１が緩衝部材３２を介して設けられていることによって、フレキシブルプリント配線板３１の導電部３１２が前面パネル２と当接することができる位置となるので、前面パネル２に帯電した静電気を回路基板に逃がすことが可能となる。
In the liquid crystal display device of the present invention, the liquid crystal display panel 3 is arranged on the front side of the two glass substrates 3A and 3B with the larger surface area, and the branch piece 311 is placed on the front glass base 3A. Is provided via the buffer member 32, so that the conductive portion 312 of the flexible printed wiring board 31 can come into contact with the front panel 2, so that the static electricity charged in the front panel 2 is released to the circuit board. It becomes possible.
本発明は、車両情報を表示する車両用メータに適用でき、特に、液晶表示パネルを搭載したメータ等に適用可能である。
The present invention can be applied to a vehicle meter that displays vehicle information, and is particularly applicable to a meter or the like equipped with a liquid crystal display panel.
１ 見返し部材
２ 前面パネル
３ 液晶表示パネル
３Ａ 前側ガラス基板
３Ｂ 後側カラス基板
４ 導光体
５ 光学シート
６ セルケース
２１ 縁部
３１ フレキシブルプリント配線板
３２ 緩衝部材
３１１ 分岐片
３１２ 導電部 DESCRIPTION OFSYMBOLS 1 Look-back member 2 Front panel 3 Liquid crystal display panel 3A Front side glass substrate 3B Rear side crow board 4 Light guide 5 Optical sheet 6 Cell case 21 Edge 31 Flexible printed wiring board 32 Buffer member 311 Branch piece 312 Conductive part
２ 前面パネル
３ 液晶表示パネル
３Ａ 前側ガラス基板
３Ｂ 後側カラス基板
４ 導光体
５ 光学シート
６ セルケース
２１ 縁部
３１ フレキシブルプリント配線板
３２ 緩衝部材
３１１ 分岐片
３１２ 導電部 DESCRIPTION OF
Claims (5)
- 前面パネルの背後に設けられ、液晶を封止した一対の絶縁基板の内側表面に透明電極が各々設けられることで表示部を形成する液晶表示パネルと、
前記液晶表示パネルと導通接続されるフレキシブルプリント配線板と、を備えた液晶表示装置において、
前記フレキシブルプリント配線板は、前記液晶表示パネルと導通接続されない分岐片を有し、
前記分岐片は、前記前面パネルに当接することを特徴とする液晶表示装置。 A liquid crystal display panel which is provided behind the front panel and forms a display unit by providing transparent electrodes on the inner surfaces of a pair of insulating substrates sealed with liquid crystal; and
In a liquid crystal display device comprising a flexible printed wiring board electrically connected to the liquid crystal display panel,
The flexible printed wiring board has a branch piece that is not conductively connected to the liquid crystal display panel,
The liquid crystal display device according to claim 1, wherein the branch piece abuts on the front panel. - 前記分岐片は、前記絶縁基板の表面側に配置された緩衝部材と当接することを特徴とする請求項１に記載の液晶表示装置。 2. The liquid crystal display device according to claim 1, wherein the branch piece contacts a buffer member disposed on a surface side of the insulating substrate.
- 前記前面パネルは、前記液晶表示パネルの表示領域を囲う縁部を有していることを特徴とする請求項１または２に記載の液晶表示装置。 3. The liquid crystal display device according to claim 1, wherein the front panel has an edge portion surrounding a display area of the liquid crystal display panel.
- 前記分岐片は、前記前面パネルと当接する導電部を有し、前記導電部は前記分岐片の前面側にあることを特徴とする請求項１から３に記載の液晶表示装置。 4. The liquid crystal display device according to claim 1, wherein the branch piece has a conductive portion that contacts the front panel, and the conductive portion is on a front side of the branch piece.
- 前記液晶表示パネルは、前記絶縁基板のうち表面積が大きい方が前面側に配置され、前記分岐片は前記表面積が大きい方に前記緩衝部材を介して配置されることを特徴とする請求項１から４に記載の液晶表示装置。 2. The liquid crystal display panel according to claim 1, wherein one of the insulating substrates having a larger surface area is disposed on the front side, and the branching piece is disposed on the larger surface area via the buffer member. 5. A liquid crystal display device according to 4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012230773A JP6048061B2 (en) | 2012-10-18 | 2012-10-18 | Liquid crystal display |
| JP2012-230773 | 2012-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014061469A1 true WO2014061469A1 (en) | 2014-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2013/077072 WO2014061469A1 (en) | 2012-10-18 | 2013-10-04 | Liquid crystal display device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6048061B2 (en) |
| WO (1) | WO2014061469A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427243A (en) * | 2017-08-22 | 2019-03-05 | 上海和辉光电有限公司 | A kind of display panel, device and production method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016104348A1 (en) * | 2014-12-26 | 2016-06-30 | シャープ株式会社 | Display device |
| CN107408361B (en) * | 2015-03-10 | 2020-04-28 | 夏普株式会社 | Display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006139100A (en) * | 2004-11-12 | 2006-06-01 | Matsushita Electric Ind Co Ltd | Communication terminal |
| JP2008209468A (en) * | 2007-02-23 | 2008-09-11 | Seiko Instruments Inc | Liquid crystal display |
-
2012
- 2012-10-18 JP JP2012230773A patent/JP6048061B2/en not_active Expired - Fee Related
-
2013
- 2013-10-04 WO PCT/JP2013/077072 patent/WO2014061469A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006139100A (en) * | 2004-11-12 | 2006-06-01 | Matsushita Electric Ind Co Ltd | Communication terminal |
| JP2008209468A (en) * | 2007-02-23 | 2008-09-11 | Seiko Instruments Inc | Liquid crystal display |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427243A (en) * | 2017-08-22 | 2019-03-05 | 上海和辉光电有限公司 | A kind of display panel, device and production method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6048061B2 (en) | 2016-12-21 |
| JP2014081567A (en) | 2014-05-08 |
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