WO2012137471A1 - Panneau de cristaux liquides et dispositif d'affichage équipé dudit panneau - Google Patents

Panneau de cristaux liquides et dispositif d'affichage équipé dudit panneau Download PDF

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Publication number
WO2012137471A1
WO2012137471A1 PCT/JP2012/002294 JP2012002294W WO2012137471A1 WO 2012137471 A1 WO2012137471 A1 WO 2012137471A1 JP 2012002294 W JP2012002294 W JP 2012002294W WO 2012137471 A1 WO2012137471 A1 WO 2012137471A1
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WIPO (PCT)
Prior art keywords
liquid crystal
terminal
numbered
substrate
crystal panel
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PCT/JP2012/002294
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English (en)
Japanese (ja)
Inventor
聖 中原
原田　光徳
安弘 小原
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シャープ株式会社
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Priority to JP2013508756A priority Critical patent/JPWO2012137471A1/ja
Publication of WO2012137471A1 publication Critical patent/WO2012137471A1/fr

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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

Definitions

  • the present invention relates to a liquid crystal panel and a display device including the same, and more particularly to a liquid crystal panel for a parallax barrier capable of switching a display state and a display device including the same.
  • liquid crystal display devices that can switch between a two-dimensional (2D) display state and a three-dimensional (3D) display state have attracted attention.
  • This liquid crystal display device is, for example, a liquid crystal display panel for displaying images and a parallax barrier for switching between a first display state for two-dimensional display and a second display state for three-dimensional display. And a liquid crystal panel.
  • the liquid crystal panel for the parallax barrier includes a first substrate and a second substrate provided so as to face each other, and a liquid crystal layer provided between the first substrate and the second substrate.
  • a plurality of transparent electrodes are provided so as to extend in parallel to each other.
  • a transparent common electrode is provided on the surface of the second substrate on the liquid crystal layer side.
  • the first substrate has a terminal region in a portion protruding from the second substrate, and the terminal region is common to, for example, the first terminal connected to each transparent electrode and the common electrode of the second substrate.
  • a second terminal connected via a transition material is provided.
  • Patent Document 1 discloses that an electrode structure on at least one of a pair of substrates with electrodes arranged opposite to each other has a conductor portion with a width of 50 ⁇ m at the widest portion and a width of 50 ⁇ m at the widest portion. There has been disclosed a liquid crystal display element having a region composed of a non-conductor portion for each pixel.
  • Patent Document 2 discloses a display device having a terminal structure in which a plurality of connection terminal portions are arranged at equal intervals.
  • the liquid crystal panel for parallax barrier described above inputs, for example, a first signal and a second signal of rectangular waves having opposite phases to the first terminal and the second terminal, respectively.
  • a voltage between the two By applying a voltage between the two, a light shielding region is formed along each transparent electrode, and functions as a parallax barrier.
  • the parallax barrier liquid crystal panel since a potential difference is easily generated between the first terminal and the second terminal provided in the terminal region of the first substrate, the local battery is provided between the first terminal and the second terminal. As a result, the first terminal or the second terminal on the low potential side may corrode.
  • the present invention has been made in view of such points, and an object thereof is to suppress corrosion of terminals provided on a liquid crystal panel for a parallax barrier.
  • the present invention provides a first terminal connected to a plurality of first transparent electrodes of a first substrate and a part of a second terminal connected to a second transparent electrode of a second substrate.
  • a protective insulating film is provided so as to cover each.
  • a liquid crystal panel includes a first substrate provided with a plurality of first transparent electrodes so as to extend in parallel to each other, and a second transparent electrode provided to face the first substrate.
  • a second substrate a liquid crystal layer provided between the first substrate and the second substrate, functioning as a parallax barrier, and provided on a surface of the first substrate on the liquid crystal layer side and exposed from the second substrate.
  • a liquid crystal layer function as a parallax barrier by applying a voltage between a some 1st transparent electrode and a 2nd transparent electrode, several 1st transparent provided in the 1st board
  • substrate A first terminal in the terminal region connected to the electrode and a second terminal in the terminal region connected to the second transparent electrode provided on the second substrate (for example, via a common transition material), respectively. Even if a potential difference is easily generated between the first terminal and the second terminal by inputting a signal, the first terminal and the second terminal provided in the terminal region of the first substrate exposed from the second substrate. Since each part of is covered with the protective insulating film, the corrosion resistance of the first terminal and the second terminal is improved. Accordingly, the corrosion of the first terminal and the second terminal provided in the terminal region of the parallax barrier liquid crystal panel is suppressed, so that the corrosion of the terminal provided in the parallax barrier liquid crystal panel is suppressed.
  • An alignment film may be provided on the surface of the first substrate on the liquid crystal layer side, and the protective insulating film may be constituted by a part of the alignment film.
  • the protective insulating film is comprised by a part of alignment film provided in the surface at the side of the liquid crystal layer of a 1st board
  • the protective insulating film may be provided so as to cover 10% or more and 65% or less of each area of the first terminal and the second terminal.
  • the protective insulating film is provided so as to cover 10% or more and 65% or less of each area of the first terminal and the second terminal, it is provided on the liquid crystal panel for the parallax barrier. Corrosion of the first terminal and the second terminal is specifically suppressed.
  • the protective insulating film covers less than 10% of each area of the first terminal and the second terminal, the corrosion resistance of the first terminal and the second terminal becomes insufficient.
  • a protective insulating film especially an organic film such as an alignment film
  • ACF Anisotropic Conductive Film
  • FPC Flexible Printed Circuit
  • the second display state that functions as the stripe-shaped parallax barrier along the extending direction may be switchable.
  • the first display state in which the liquid crystal layer does not function as a parallax barrier and the second display state in which the liquid crystal layer functions as a striped parallax barrier along the extending direction of each first transparent electrode. Since it is configured to be switchable, for example, an image of a display panel provided so as to face the liquid crystal panel is displayed in the first display state of two-dimensional display or the second display state of three-dimensional display. Is possible.
  • a plurality of the second transparent electrodes are provided so as to extend in parallel to each other in a direction intersecting with the first transparent electrodes, and the terminal region is connected to an odd number of the plurality of first transparent electrodes.
  • the odd-numbered first terminal and the even-numbered first terminal connected to the even-numbered first terminal are provided, and the odd-numbered second terminal connected to the odd-numbered second transparent electrodes and the even-numbered second transparent electrodes.
  • the even-numbered second terminals connected to the second may be provided.
  • the plurality of first transparent electrodes are provided on the first substrate so as to extend in parallel with each other, and the plurality of second transparent electrodes are provided on the second substrate so as to extend in parallel with each other.
  • the odd-numbered first terminals connected to the odd-numbered first transparent electrodes, the even-numbered first terminals connected to the even-numbered first transparent electrodes, and the odd-numbered second transparent electrodes The odd-numbered second terminal and the even-numbered second terminal connected to the even-numbered second transparent electrodes are respectively provided, so that the odd-numbered first terminal or the even-numbered first terminal and the odd-numbered first terminal
  • By inputting a predetermined signal to each of the second terminal and the even-numbered second terminal, between the odd-numbered or even-numbered first transparent electrodes and the (odd-numbered and even-numbered) second transparent electrodes Voltage is specifically applied to the first terminal on the odd-numbered side.
  • the odd-numbered and even-numbered first transparent electrodes By inputting a predetermined signal to each of the even-numbered first terminal and the odd-numbered second terminal or the even-numbered second terminal, the odd-numbered and even-numbered first transparent electrodes (odd-numbered and even-numbered) A voltage is specifically applied between the plurality of second transparent electrodes.
  • the liquid crystal layer may be configured to be switchable between a third display state that functions as the stripe-shaped parallax barrier along the extending direction of each second transparent electrode by applying a voltage.
  • the panel image can be displayed in the first display state of the two-dimensional display, the second display state of the three-dimensional display on the vertical screen, or the third display state of the three-dimensional display on the horizontal screen.
  • the display device includes any one of the liquid crystal panels described above and a display panel provided to face the liquid crystal panel.
  • the display provided with display panels such as a liquid crystal display panel and an organic EL (Electro * Luminescence) display panel
  • the display panel such as a liquid crystal display panel and an organic EL (Electro * Luminescence) display panel
  • corrosion of terminals provided on the liquid crystal panel for the parallax barrier is suppressed.
  • the display panel may include a pair of substrates provided to face each other and a liquid crystal layer provided between the pair of substrates.
  • the display panel includes the pair of substrates provided so that the display panels face each other and the liquid crystal layer provided between the two substrates, the display device including the liquid crystal display panel The corrosion of the terminals provided on the liquid crystal panel for the parallax barrier is suppressed.
  • the liquid crystal panel may be configured so that the display state of the display panel can be switched between two-dimensional display and three-dimensional display.
  • the liquid crystal panel is configured to be able to switch the display state of the display panel between the two-dimensional display and the three-dimensional display, in the display device capable of switching between the two-dimensional display and the three-dimensional display, Corrosion of terminals provided on the liquid crystal panel for the parallax barrier is suppressed.
  • the first terminal connected to the plurality of first transparent electrodes of the first substrate and the second terminal connected to the second transparent electrode of the second substrate are each protected so as to cover each part. Since the insulating film is provided, corrosion of the terminals provided on the liquid crystal panel for the parallax barrier can be suppressed.
  • FIG. 1 is a cross-sectional view of the liquid crystal display device according to the first embodiment.
  • FIG. 2 is a plan view of the liquid crystal panel according to the first embodiment.
  • FIG. 3 is a plan view of the segment side substrate constituting the liquid crystal panel according to the first embodiment.
  • FIG. 4 is a plan view of the common side substrate constituting the liquid crystal panel according to the first embodiment.
  • FIG. 5 is a perspective view of a segment side substrate and a common side substrate constituting the liquid crystal panel according to the first embodiment.
  • FIG. 6 is a schematic diagram of the liquid crystal display device according to the first embodiment when performing two-dimensional display.
  • FIG. 7 is a schematic diagram of the liquid crystal display device according to the first embodiment when performing three-dimensional display.
  • FIG. 1 is a cross-sectional view of the liquid crystal display device according to the first embodiment.
  • FIG. 2 is a plan view of the liquid crystal panel according to the first embodiment.
  • FIG. 3 is a plan view of the segment side substrate constituting the liquid crystal
  • FIG. 8 is a cross-sectional view of the liquid crystal display device according to the second embodiment.
  • FIG. 9 is a cross-sectional view of the liquid crystal display device according to the third embodiment.
  • FIG. 10 is a plan view of a segment side substrate constituting the liquid crystal panel according to the third embodiment.
  • FIG. 11 is a plan view of a common side substrate constituting the liquid crystal panel according to the third embodiment.
  • FIG. 12 is a perspective view of a segment side substrate and a common side substrate constituting the liquid crystal panel according to the third embodiment.
  • FIG. 13 is a cross-sectional view of the liquid crystal display device according to the fourth embodiment.
  • FIG. 14 is a plan view of a segment side substrate constituting the liquid crystal panel according to the fourth embodiment.
  • FIG. 15 is a perspective view of a segment side substrate and a common side substrate constituting the liquid crystal panel according to the fourth embodiment.
  • Embodiment 1 of the Invention 1 to 7 show Embodiment 1 of a liquid crystal panel and a display device having the same according to the present invention.
  • FIG. 1 is a cross-sectional view of the liquid crystal display device 70a of the present embodiment.
  • FIG. 2 is a plan view of the liquid crystal panel 30a constituting the liquid crystal display device 70a.
  • 3 is a plan view of the segment side substrate 21a constituting the liquid crystal panel 30a
  • FIG. 4 is a plan view of the common side substrate 22a constituting the liquid crystal panel 30a.
  • FIG. 4 is a plan view of the common substrate 22a as viewed from the upper side in FIG.
  • FIG. 5 is a perspective view showing an arrangement state of the segment side substrate 21a and the common side substrate 22a.
  • the liquid crystal display device 70a includes a parallax barrier liquid crystal panel 30a, a display liquid crystal display panel 45 provided on the upper side of the liquid crystal panel 30a, and a lower side of the liquid crystal panel 30a in the figure.
  • a diffusion plate 57 provided on the backlight 55
  • an optical sheet 60 provided between the diffusion plate 57 and the liquid crystal panel 30a, the liquid crystal panel 30a, the liquid crystal display panel 45, and the back.
  • a frame-like bezel 64 provided to accommodate the light 55, the diffusion plate 57, the optical sheet 60, and the like.
  • the liquid crystal panel 30a and the liquid crystal display panel 45 are connected to the drive circuit device 63 via the FPC 62.
  • the liquid crystal panel 30a includes a segment side substrate 21a provided as a first substrate, a common side substrate 22a provided as a second substrate so as to face the segment side substrate 21a, and a segment side substrate.
  • the liquid crystal layer 25 provided between 21a and the common side substrate 22a, the segment side substrate 21a and the common side substrate 22a are bonded together, and the liquid crystal layer 25 is sealed between the segment side substrate 21a and the common side substrate 22a. Therefore, a sealing material 26 provided in a frame shape is provided.
  • a terminal region T is provided on the surface of the segment side substrate 21a on the liquid crystal layer 25 side so as to be exposed from the common side substrate 22a.
  • the common substrate 22a includes a transparent insulating substrate 10b such as a glass substrate, a second transparent electrode 16 provided in a rectangular shape on the insulating substrate 10b, and a second transparent electrode 16 And a polyimide alignment film 17a provided so as to cover the second transparent electrode 16.
  • the second transparent electrode 16, the contact portion 16c, and the wiring between them are formed on the transparent conductive film after forming a transparent conductive film such as ITO (IndiumideTin Oxide) on the insulating substrate 10b.
  • ITO IndiumideTin Oxide
  • a polarizing plate 31b is attached to the surface of the common side substrate 22a opposite to the liquid crystal layer 25 (upper side in the figure).
  • the segment side substrate 21a includes a transparent insulating substrate 10a such as a glass substrate, and a plurality of first transparent electrodes 11 provided on the insulating substrate 10a so as to extend in parallel to each other.
  • each 1st transparent electrode 11, the 1st terminal 11t, the wiring between them, and the contact part 12c, the 2nd terminal 12t, and the wiring between them are transparent, such as ITO, for example on the insulating substrate 10a.
  • the transparent conductive film is simultaneously formed by performing photolithography, etching, and resist peeling cleaning. Further, as shown in FIG. 1, a polarizing plate 31a is attached to the surface of the segment side substrate 21a opposite to the liquid crystal layer 25 (lower side in the figure). Further, as shown in FIG. 3, the surfaces of the first terminal 11t and the second terminal 12t cover 10% to 65% of the areas of the first terminal 11t and the second terminal 12t, respectively.
  • the alignment film 13a is extended as a protective insulating film. Here, when the alignment film 13a covers less than 10% of each area of the first terminal 11t and the second terminal 12t, the corrosion resistance of the first terminal 11t and the second terminal 12t becomes insufficient.
  • the first terminal 11t and the second terminal 12t each have an area of, for example, about 1600 ⁇ m to 3200 ⁇ m ⁇ 950 ⁇ m.
  • the liquid crystal layer 25 is made of a nematic liquid crystal material having electro-optical characteristics.
  • the contact portion 12c on the segment side substrate 21a and the contact portion 16c on the common side substrate 22a are connected to each other via a common transition material (not shown) such as silver paste, for example.
  • the second terminal 12t on the segment side substrate 21a is connected to the second transparent electrode 16 on the common side substrate 22a.
  • the liquid crystal display panel 45 includes an active matrix substrate 41 and a counter substrate 42 provided as a pair of substrates so as to face each other, and a liquid crystal provided between the active matrix substrate 41 and the counter substrate 42.
  • the layer 43 and the active matrix substrate 41 and the counter substrate 42 are bonded to each other, and a sealing material 44 provided in a frame shape is provided between the active matrix substrate 41 and the counter substrate 42 to enclose the liquid crystal layer 43.
  • one pixel is composed of three sub-pixels such as a sub-pixel for displaying red, a sub-pixel for displaying green, and a sub-pixel for displaying blue. It is configured.
  • the active matrix substrate 41 includes, for example, a transparent insulating substrate (not shown) such as a glass substrate, a plurality of gate lines (not shown) provided on the insulating substrate so as to extend in parallel to each other, and orthogonal to each gate line.
  • a plurality of source lines (not shown) provided so as to extend in parallel with each other in the direction to be aligned, and a plurality of TFTs (not shown) provided for each intersection of each gate line and each source line, that is, for each subpixel.
  • An interlayer insulating film provided to cover each TFT, a plurality of pixel electrodes (not shown) provided in a matrix on the interlayer insulating film, and an orientation provided to cover each pixel electrode A film (not shown).
  • the polarizing plate 31b attached to the common substrate 22a constituting the liquid crystal panel 30a. Is pasted.
  • the counter substrate 42 is provided, for example, between a transparent insulating substrate (not shown) such as a glass substrate, a black matrix (not shown) provided in a lattice shape on the insulating substrate, and each lattice of the black matrix.
  • a plurality of colored layers (not shown) such as a red layer, a green layer, and a blue layer, a common electrode (not shown) provided so as to cover the black matrix and each colored layer, and a columnar shape provided on the common electrode
  • a plurality of photo spacers (not shown) and an alignment film (not shown) provided to cover the common electrode are provided.
  • a polarizing plate 46b is attached to the surface of the counter substrate 42 opposite to the liquid crystal layer 43 (upper side in the figure).
  • the liquid crystal layer 43 is made of a nematic liquid crystal material having electro-optical characteristics.
  • the backlight 55 includes a chassis 53 provided in a box shape, a reflection sheet 52 provided on the inner surface of the chassis 53 that opens upward in the drawing, and a reflection sheet 52 above the reflection sheet 52. And a plurality of linear light sources 51 provided so as to extend in parallel. Further, as shown in FIG. 1, the backlight 55 is housed inside the frame-like frame 56 on the lower side in the drawing.
  • the reflection sheet 52 is made of a metal film having a high light reflectance such as aluminum or silver having a thickness of about 0.2 mm to 0.5 mm.
  • the backlight 55 is illustrated in which the reflective surface 52 is attached to the inner surface of the chassis 53 to impart light reflectivity to the inner surface of the chassis 53.
  • the light reflection is performed on the inner surface of the chassis 53.
  • Light reflectivity may be imparted to the inner surface of the chassis 53 by applying a paint such as white having a high rate.
  • the linear light source 51 is constituted by, for example, a cold cathode fluorescent tube.
  • the direct type backlight 55 is illustrated, but for example, an edge light type backlight including a light guide plate, a backlight including another light source such as an LED (Light-Emitting-Diode), and the like. It may be.
  • the diffusion plate 57 is formed in a rectangular plate shape with a thickness of about 2 mm by using, for example, a transparent resin material or glass material.
  • the diffusion plate 57 is configured to diffuse the light incident from the backlight 55 and emit the light to the optical sheet 60 side. Further, as shown in FIG. 1, the diffusion plate 57 is provided between the frame 56 and the backlight 55 via a pressing member 58 that can be elastically deformed on the frame 56 side.
  • the diffusion plate 57 is held movably between the chassis 53 and the pressing member 58 of the backlight 55, thereby causing heat generation of the linear light source 51, temperature rise inside the chassis 53, and the like.
  • the expansion / contraction deformation is buffered by the elastic deformation of the pressing member 58 and is configured to suppress a decrease in the diffusibility of light from the backlight 55.
  • the optical sheet 60 includes, for example, a light collecting sheet made of a synthetic resin film having a thickness of about 0.5 mm, improves the luminance of light emitted to the liquid crystal panel 30a and the liquid crystal display panel 45, and diffuses the diffusion plate 57.
  • the light emitted from the light is converted into planar light having a uniform luminance (for example, about 5000 cd / m 2 ).
  • known optical sheet materials such as a prism sheet, a diffusion sheet, and a polarizing sheet for improving display quality on the liquid crystal display panel 45 are appropriately laminated as necessary.
  • FIG. 6 and FIG. 7 are schematic diagrams respectively showing a state in the two-dimensional display and the three-dimensional display of the liquid crystal display device 70a.
  • the liquid crystal display panel 45 In the three-dimensional display (second display state), as shown in FIG. 7, in the liquid crystal display panel 45, between each pixel electrode on the active matrix substrate 41 and the common electrode on the counter substrate 42.
  • a predetermined voltage for each subpixel By applying a predetermined voltage for each subpixel to the liquid crystal layer 43 disposed on the liquid crystal layer 43 and changing the alignment state of the liquid crystal layer 43, the transmittance of light from the backlight 55 is adjusted for each subpixel, and liquid crystal In the panel 30a, a rectangular wave first signal and a second signal having opposite phases to each other are input to the first terminal 11t and the second terminal 12t, respectively, so that a predetermined voltage is applied to the liquid crystal layer 25 and each first By generating a stripe-shaped parallax barrier B along the direction in which the transparent electrode 11 extends, different lights reach the left and right eyes to display a three-dimensional image.
  • the liquid crystal display panel 45 includes pixels for displaying an image for the left eye along a direction orthogonal to a direction in which each first transparent electrode 11 extends in the liquid crystal panel 30a during three-dimensional display. Control is performed so that pixels for displaying an image for the right eye are arranged apart from each other.
  • a voltage is applied between the plurality of first transparent electrodes 11 and the second transparent electrodes 16 to form a liquid crystal layer.
  • the first terminal 11t of the terminal region T connected to the plurality of first transparent electrodes 11 provided on the segment side substrate 21a and the second terminal provided on the common side substrate 22a.
  • a potential difference is easily generated between the first terminal 11t and the second terminal 12t by inputting predetermined signals to the second terminal 12t of the terminal region T connected to the transparent electrode 16 via a common transition material.
  • each of the first terminal 11t and the second terminal 12t provided in the terminal region T of the segment side substrate 21a exposed from the common side substrate 22a is covered with the alignment film 13a. Because there, corrosion resistance of the first terminal 11t and the second terminal 12t is improved. Thereby, since corrosion of the first terminal 11t and the second terminal 12t provided in the terminal region T of the parallax barrier liquid crystal panel 30a can be suppressed, the terminals of the terminals provided in the parallax barrier liquid crystal panel 30a can be suppressed. Corrosion can be suppressed.
  • the protective insulating film (13a) can be disposed on the first terminal 11t and the second terminal 12t without adding a manufacturing process.
  • the first display state of the two-dimensional display in which the liquid crystal layer 25 does not function as a parallax barrier and the liquid crystal layer 25 are each first transparent Since the second display state of the three-dimensional display functioning as the striped parallax barrier B along the extending direction of the electrode 11 can be switched, the liquid crystal display panel provided to face the liquid crystal panel 30a The 45 images can be displayed in the first display state of the two-dimensional display or the second display state of the three-dimensional display.
  • FIG. 8 is a cross-sectional view of the liquid crystal display device 70b of the present embodiment.
  • the same parts as those in FIGS. 1 to 7 are denoted by the same reference numerals, and detailed description thereof will be omitted.
  • the liquid crystal display device 70a in which the liquid crystal display panel 45 is disposed on the display screen side of the liquid crystal panel 30a is illustrated.
  • the liquid crystal display panel 45 is disposed on the backlight 55 side of the liquid crystal panel 30a.
  • the disposed liquid crystal display device 70b is exemplified.
  • the liquid crystal display device 70 b includes a parallax barrier liquid crystal panel 30 a, a display liquid crystal display panel 45 provided on the lower side of the liquid crystal panel 30 a, and the liquid crystal display panel 45.
  • Backlight 55 provided on the lower side
  • diffusion plate 57 provided on backlight 55
  • optical sheet 60 provided between diffusion plate 57 and liquid crystal display panel 45, liquid crystal panel 30a, and liquid crystal display panel 45
  • a backlight 55 a diffusing plate 57, an optical sheet 60, and the like
  • a frame-like bezel 64 provided so as to be accommodated therein.
  • the polarization affixed to the segment side substrate 21a constituting the liquid crystal panel 30a.
  • a plate 31a is affixed.
  • a polarizing plate 46a is attached to the surface of the active matrix substrate 41 constituting the liquid crystal display panel 45 on the surface opposite to the liquid crystal layer 43 (lower side in the figure).
  • the liquid crystal panel 30a of the present embodiment and the liquid crystal display device 70b including the same in the terminal region T of the segment side substrate 21a exposed from the common side substrate 22a, as in the first embodiment. Since each part of the first terminal 11t and the second terminal 12t is covered with the alignment film 13a, corrosion of the terminals provided on the parallax barrier liquid crystal panel 30a can be suppressed.
  • the liquid crystal panel 30a in which the plurality of first transparent electrodes 11 are provided on the segment side substrate 21a and the single second transparent electrode 16 is provided on the common side substrate 22a is illustrated.
  • a single second transparent electrode (16) is provided on the segment side substrate (21a) and a plurality of first transparent electrodes (11) are provided on the common side substrate (22a). May be.
  • FIG. 9 is a cross-sectional view of the liquid crystal display device 70c of this embodiment.
  • 10 is a plan view of the segment side substrate 21c constituting the liquid crystal panel 30c of the present embodiment
  • FIG. 11 is a plan view of the common side substrate 22c constituting the liquid crystal panel 30c.
  • FIG. 11 is a plan view of the common substrate 22c as viewed from the upper side in FIG.
  • FIG. 12 is a perspective view showing an arrangement state of the segment side substrate 21c and the common side substrate 22c.
  • liquid crystal display devices 70a and 70b including the liquid crystal panel 30a in which the single second transparent electrode 16 is provided on the common side substrate 22a are illustrated.
  • the common side substrate 22c A liquid crystal display device 70c including a liquid crystal panel 30c provided with a plurality of second transparent electrodes 16a and 16b is illustrated.
  • the liquid crystal display device 70c includes a parallax barrier liquid crystal panel 30c, a display liquid crystal display panel 45 provided on the lower side of the liquid crystal panel 30c in the figure, and the liquid crystal display panel 45 in the figure.
  • Backlight 55 provided on the lower side
  • diffusion plate 57 provided on backlight 55
  • optical sheet 60 provided between diffusion plate 57 and liquid crystal display panel 45
  • liquid crystal panel 30c liquid crystal display panel 45
  • a backlight 55 a diffusing plate 57
  • an optical sheet 60 and the like
  • a frame-like bezel 64 provided so as to be accommodated therein.
  • the liquid crystal panel 30c includes a segment side substrate 21c provided as a first substrate, a common side substrate 22c provided as a second substrate so as to face the segment side substrate 21c, and a segment side substrate.
  • the liquid crystal layer 25 provided between 21c and the common side substrate 22c, the segment side substrate 21c and the common side substrate 22c are bonded together, and the liquid crystal layer 25 is sealed between the segment side substrate 21c and the common side substrate 22c. Therefore, a sealing material 26 provided in a frame shape is provided.
  • a terminal region T is provided on the surface of the segment side substrate 21c on the liquid crystal layer 25 side so as to be exposed from the common side substrate 22c.
  • the common substrate 22c includes a transparent insulating substrate 10b such as a glass substrate and a plurality of second transparent electrodes 16a and 16b provided on the insulating substrate 10b so as to extend in parallel to each other. And contact portions 16ac connected to the odd-numbered second transparent electrodes 16a from the upper side in FIG. 11, and contact portions 16bc connected to the even-numbered second transparent electrodes 16b from the upper side in FIG. And an alignment film 17b made of polyimide provided so as to cover the odd-numbered second transparent electrodes 16a and the even-numbered second transparent electrodes 16b.
  • the odd-numbered second transparent electrodes 16a, the contact portions 16ac and the wiring between them, and the even-numbered second transparent electrodes 16b, the contact portions 16bc, and the wiring between them are formed on the insulating substrate 10b.
  • the transparent conductive film is simultaneously formed by performing photolithography, etching, and resist peeling cleaning.
  • a polarizing plate 31b is attached to the surface of the common substrate 22c opposite to the liquid crystal layer 25 (upper side in the figure).
  • the segment side substrate 21c is formed of a transparent insulating substrate 10a such as a glass substrate and a direction orthogonal to the plurality of second transparent electrodes 16a and 16b of the common side substrate 22c on the insulating substrate 10a.
  • a plurality of first transparent electrodes 11a and 11b provided so as to extend in parallel with each other, an odd-numbered first terminal 11at connected to the odd-numbered first transparent electrodes 11a from the left side in FIG. 10, and FIG.
  • An even-numbered first terminal 11bt connected to the plurality of even-numbered first transparent electrodes 11b from the middle left side, and contact portions 12ac and 12bc provided to overlap the contact portions 16ac and 16bc of the common-side substrate 22c,
  • the odd-numbered second terminal 12at connected to the contact portion 12ac and the even-numbered second terminal 12bt connected to the contact portion 12bc
  • a odd alignment film 13b of each of the first transparent electrode 11a and the even-numbered steel provided so as to cover these first transparent electrode 11b polyimide.
  • each odd-numbered first transparent electrode 11a, odd-numbered first terminal 11at and wiring between them, each even-numbered first transparent electrode 11b, even-side first terminal 11bt and wiring between them, contact part 12ac, the odd-numbered second terminal 12at and the wiring between them, and the contact portion 12bc, the even-numbered second terminal 12bt, and the wiring between them form a transparent conductive film such as ITO on the insulating substrate 10a.
  • the transparent conductive film is simultaneously formed by performing photolithography, etching, and resist peeling cleaning.
  • a polarizing plate 31a is attached to the surface of the segment side substrate 21c opposite to the liquid crystal layer 25 (the lower side in the figure).
  • An alignment film 13b is extended as a protective insulating film so as to cover 10% or more and 65% or less of each area of the first side terminal 11bt, the odd number side second terminal 12at, and the even number side second terminal 12bt.
  • the alignment film 13b covers less than 10% of each area of the odd-numbered first terminal 11at, the even-numbered first terminal 11bt, the odd-numbered second terminal 12at, and the even-numbered second terminal 12bt, respectively.
  • the alignment film 13a becomes When covering over 65% of each area of the odd-numbered first terminal 11at, the even-numbered first terminal 11bt, the odd-numbered second terminal 12at, and the even-numbered second terminal 12bt, the organic film and the terminal surface Since the adhesion of the FPC 62 is crimped to the odd-numbered first terminal 11at, the even-numbered first terminal 11bt, the odd-numbered second terminal 12at, and the even-numbered second terminal 12bt, the ACF ( There is a risk that peeling of the illustrated) tends to occur.
  • the odd-numbered first terminal 11at, the even-numbered first terminal 11bt, the odd-numbered second terminal 12at, and the even-numbered second terminal 12bt each have an area of, for example, about 1600 ⁇ m to 3200 ⁇ m ⁇ 950 ⁇ m.
  • the contact portions 12ac and 12bc on the segment side substrate 21c and the contact portions 16ac and 16bc on the common side substrate 22c are connected to each other via a common transition material (not shown) such as silver paste, for example.
  • a common transition material such as silver paste, for example.
  • the odd-numbered second terminals 12at and the even-numbered second terminals 12bt on the segment-side substrate 21c are connected to the odd-numbered second transparent electrodes 16a and the even-numbered second transparent electrodes on the common-side substrate 22c. 16b, respectively.
  • the polarization affixed to the segment side substrate 21c constituting the liquid crystal panel 30c.
  • a plate 31a is affixed.
  • the liquid crystal layer 43 disposed between each pixel electrode on the active matrix substrate 41 and the common electrode on the counter substrate 42 is displayed.
  • the transmittance of light from the backlight 55 is adjusted for each sub-pixel, and the liquid crystal layer 25 in the liquid crystal panel 30c is adjusted.
  • a voltage is not applied to the light source and no parallax barrier is generated (the parallax barrier B (see FIG. 7) is made transparent), so that the same light reaches the left and right eyes to display a two-dimensional image.
  • each pixel electrode on the active matrix substrate 41 and the counter substrate 42 are displayed on the liquid crystal display panel 45.
  • the liquid crystal layer 43 arranged between the upper common electrode By applying a predetermined voltage for each sub-pixel to the liquid crystal layer 43 arranged between the upper common electrode and changing the alignment state of the liquid crystal layer 43, the light from the backlight 55 is changed for each sub-pixel.
  • the transmittance is adjusted, and in the liquid crystal panel 30c, the odd-numbered first terminal 11at or the even-numbered first terminal 11bt, the odd-numbered second terminal 12at, and the even-numbered second terminal 12bt are first in a rectangular wave with phases opposite to each other.
  • a predetermined voltage is applied to the liquid crystal layer 25, and a striped parallax barrier B along the extending direction of the plurality of first transparent electrodes 11a and 11b (see FIG. 7)
  • the liquid crystal display panel 45 displays an image for the left eye along a direction orthogonal to the extending direction of the plurality of first transparent electrodes 11a and 11b in the liquid crystal panel 30c during the three-dimensional display.
  • the pixel and the pixel for displaying the image for the right eye are controlled so as to be spaced apart from each other.
  • each pixel electrode on the active matrix substrate 41 and the counter substrate 42 are displayed on the liquid crystal display panel 45.
  • the liquid crystal layer 43 arranged between the upper common electrode By applying a predetermined voltage for each sub-pixel to the liquid crystal layer 43 arranged between the upper common electrode and changing the alignment state of the liquid crystal layer 43, the light from the backlight 55 is changed for each sub-pixel.
  • the transmittance is adjusted, and in the liquid crystal panel 30c, the odd-numbered first terminal 11at and the even-numbered first terminal 11bt, and the odd-numbered second terminal 12at or the even-numbered second terminal 12bt are first in a rectangular wave having mutually opposite phases.
  • a predetermined voltage is applied to the liquid crystal layer 25, and the striped parallax barrier B along the extending direction of the plurality of second transparent electrodes 16a and 16b (see FIG. 7).
  • the liquid crystal display panel 45 displays an image for the left eye along a direction orthogonal to the extending direction of the plurality of second transparent electrodes 16a and 16b in the liquid crystal panel 30a during the three-dimensional display.
  • the pixel and the pixel for displaying the image for the right eye are controlled so as to be spaced apart from each other.
  • the odd-numbered first transparent electrodes 11a, the even-numbered first transparent electrodes 11b, and the odd-numbered first transparent electrodes 11b are identical.
  • odd numbers provided on the segment side substrate 21c At least one of the odd-numbered first terminal 11at and the even-numbered first terminal 11bt of the terminal region T connected to the plurality of first transparent electrodes 11a and the even-numbered first transparent electrodes 11b, respectively, and the common-side substrate Terminal regions respectively connected to the odd-numbered plurality of second transparent electrodes 16a and the even-numbered plurality of second transparent electrodes 16b provided in 22c via a common transition material
  • the plurality of first transparent electrodes 11a and 11b are provided on the segment side substrate 21c so as to extend in parallel with each other, and the common side substrate 22c.
  • a plurality of second transparent electrodes 16a and 16b are provided so as to extend in parallel with each other.
  • the terminal region T has an odd-numbered first terminal 11at connected to the odd-numbered first transparent electrodes 11a and an even-numbered plurality
  • the even-numbered first terminals 11bt connected to the first transparent electrodes 11b, the odd-numbered second terminals 12at connected to the odd-numbered second transparent electrodes 16a, and the even-numbered second transparent electrodes 16b Since the connected even-numbered second terminals 12bt are respectively provided, not only the first display state of the two-dimensional display but also the odd-numbered first terminals 11at or the even-numbered first ends.
  • the display can be displayed in the second display state of the three-dimensional display on the vertical screen functioning as the parallax barrier B, and the odd-numbered first terminal 11at and the even-numbered first terminal 11bt and the odd-numbered second terminal 12at or By inputting predetermined signals to the even-numbered second terminals 12bt, odd-numbered first transparent electrodes 11a and even-numbered first transparent electrodes 11b A voltage is applied between the second plurality of second transparent electrodes 16a or the even number of second transparent electrodes 16b, and the liquid crystal layer 25 is striped along the extending direction of the plurality of second transparent electrodes 16a and 16b.
  • the display can be performed in the third display state of the three-dimensional display on the horizontal screen functioning as the parallax barrier B.
  • the protective insulating film (13b) is formed on the odd-numbered first terminal 11at, the even-numbered first terminal 11bt, the odd-numbered second terminal 12at, and the even-numbered second terminal 12bt without adding a manufacturing process. Can be arranged.
  • liquid crystal display device 70c in which the liquid crystal display panel 45 is disposed on the backlight 55 side of the liquid crystal panel 30c is illustrated, but the liquid crystal display panel (45) is disposed on the display screen side of the liquid crystal panel (30c).
  • An arranged configuration may be used.
  • FIG. 13 is a cross-sectional view of the liquid crystal display device 70d of the present embodiment.
  • FIG. 14 is a plan view of the segment side substrate 21d constituting the liquid crystal panel 30c of the present embodiment.
  • FIG. 15 is a perspective view showing an arrangement state of the segment side substrate 21d and the common side substrate 22c.
  • the segment side substrate 21c includes the liquid crystal panel 30c provided with the even-numbered first terminals 11bt and the odd-numbered second terminals 12at separated from each other at a relatively short distance.
  • the segment-side substrate 21d includes the liquid crystal panel 30d provided so that the even-numbered first terminals 11bt and the odd-numbered second terminals 12at are separated from each other at a relatively long distance.
  • a liquid crystal display device 70d is illustrated.
  • the liquid crystal display device 70d includes a liquid crystal panel 30d for parallax barrier, a liquid crystal display panel 45 for display provided on the lower side of the liquid crystal panel 30d, and a liquid crystal display panel 45 in the figure.
  • Backlight 55 provided on the lower side
  • diffusion plate 57 provided on backlight 55
  • optical sheet 60 provided between diffusion plate 57 and liquid crystal display panel 45
  • liquid crystal panel 30d liquid crystal display panel 45
  • a backlight 55 a diffusing plate 57
  • an optical sheet 60 and the like
  • a frame-like bezel 64 provided to accommodate the inside.
  • the liquid crystal panel 30d includes a segment side substrate 21d provided as a first substrate, a common side substrate 22c provided as a second substrate so as to face the segment side substrate 21d, and a segment side substrate.
  • the liquid crystal layer 25 provided between 21d and the common side substrate 22c is bonded to the segment side substrate 21d and the common side substrate 22c, and the liquid crystal layer 25 is sealed between the segment side substrate 21d and the common side substrate 22c. Therefore, a sealing material 26 provided in a frame shape is provided.
  • a terminal region T (see FIG. 14) is provided on the surface of the segment side substrate 21d on the liquid crystal layer 25 side so as to be exposed from the common side substrate 22c.
  • the segment side substrate 21d is a transparent insulating substrate 10a such as a glass substrate, and a direction orthogonal to the plurality of second transparent electrodes 16a and 16b of the common side substrate 22c on the insulating substrate 10a.
  • a plurality of first transparent electrodes 11a and 11b provided so as to extend in parallel with each other, an odd-numbered first terminal 11at connected to the odd-numbered first transparent electrodes 11a from the left side in FIG. 14, and FIG.
  • An even-numbered first terminal 11bt connected to the plurality of even-numbered first transparent electrodes 11b from the middle left side, and contact portions 12ac and 12bc provided to overlap the contact portions 16ac and 16bc of the common-side substrate 22c,
  • the odd-numbered second terminal 12at connected to the contact portion 12ac and the even-numbered second terminal 12bt connected to the contact portion 12bc
  • a odd alignment film 13c of each of the first transparent electrode 11a and the even-numbered steel provided so as to cover these first transparent electrode 11b polyimide.
  • the surfaces of the odd-numbered first terminal 11 at, the even-numbered first terminal 11 bt, the odd-numbered second terminal 12 at, and the even-numbered second terminal 12 bt are similar to those in the third embodiment, as shown in FIG.
  • the alignment film 13c is protectively insulated so as to cover 10% or more and 65% or less of each area of the odd-numbered first terminal 11at, even-numbered first terminal 11bt, odd-numbered second terminal 12at, and even-numbered second terminal 12bt. It is extended as a membrane.
  • the inter-terminal distance S (see FIG. 14) between the even-numbered first terminal 11bt and the odd-numbered second terminal 12at is, for example, about 500 ⁇ m to 100 mm.
  • a polarizing plate 31a is attached to the surface of the segment side substrate 21d opposite to the liquid crystal layer 25 (lower side in the figure).
  • the contact portions 12ac and 12bc on the segment side substrate 21d and the contact portions 16ac and 16bc on the common side substrate 22c are connected to each other via a common transition material (not shown) such as silver paste, for example.
  • a common transition material such as silver paste, for example.
  • the odd-numbered second terminals 12at and the even-numbered second terminals 12bt on the segment-side substrate 21d are connected to the odd-numbered second transparent electrodes 16a and the even-numbered second transparent electrodes on the common-side substrate 22c. 16b, respectively.
  • the polarization affixed to the segment side substrate 21d constituting the liquid crystal panel 30d.
  • a plate 31a is affixed.
  • the liquid crystal panel 30d of this embodiment and the liquid crystal display device 70d including the same in the terminal region T of the segment side substrate 21d exposed from the common side substrate 22c, as in the third embodiment.
  • Each of the provided odd-numbered first terminals 11at, even-numbered first terminals 11bt, odd-numbered second terminals 12at, and even-numbered second terminals 12bt is covered with the alignment film 13c. Corrosion of terminals provided on the liquid crystal panel 30d can be suppressed.
  • the plurality of first transparent electrodes 11a and 11b extend in parallel to each other on the segment side substrate 21d as in the third embodiment.
  • the second transparent electrodes 16a and 16b are provided on the common side substrate 22c so as to extend in parallel with each other, and the odd-numbered first transparent electrodes 11a connected to the odd-numbered first transparent electrodes 11a are provided in the terminal region T.
  • the liquid crystal layer 25 can be displayed in a second display state of a three-dimensional display on a vertical screen that functions as a stripe-shaped parallax barrier B along the extending direction of the plurality of first transparent electrodes 11a and 11b.
  • the liquid crystal layer 25 of the liquid crystal panel 30d can be displayed in a third display state of a three-dimensional display on a horizontal screen that functions as a striped parallax barrier B along the extending direction of the plurality of second transparent electrodes 16a and 16b. .
  • the protective insulating film (13c) is formed on the odd-numbered first terminal 11at, the even-numbered first terminal 11bt, the odd-numbered second terminal 12at, and the even-numbered second terminal 12bt without adding a manufacturing process. Can be arranged.
  • the even-numbered first terminal 11bt and the odd-numbered second terminal 12at are provided apart from each other by 500 ⁇ m or more. It is difficult to form a local battery between at least one of the first terminal 11at and the even-numbered first terminal 11bt and at least one of the odd-numbered second terminal 12at and the even-numbered second terminal 12bt, and a liquid crystal panel for a parallax barrier Corrosion of the terminal provided at 30d can be further suppressed.
  • liquid crystal display device 70d in which the liquid crystal display panel 45 is disposed on the backlight 55 side of the liquid crystal panel 30d is illustrated, but the liquid crystal display panel (45) is disposed on the display screen side of the liquid crystal panel (30d).
  • An arranged configuration may be used.
  • the segment-side substrate 21d includes a liquid crystal panel 30d provided with the even-numbered first terminals 11bt and the odd-numbered second terminals 12at spaced apart from each other at a relatively long distance.
  • the segment side substrate 21a of the first and second embodiments may be configured such that the first terminal 11t and the second terminal 12t are separated from each other at a relatively long distance.
  • the alignment film (polyimide film) is exemplified as the protective insulating film, but an organic film or an inorganic film separately formed on the insulating substrate may be used.
  • the liquid crystal display device is exemplified as the display device.
  • the present invention can be applied to other display devices including an organic EL display panel.
  • the liquid crystal display device capable of switching between the display state of the two-dimensional display and the display state of the three-dimensional display has been illustrated.
  • the present invention is not limited to the normal wide viewing angle display state and two directions.
  • the present invention can suppress corrosion of terminals provided on the liquid crystal panel for parallax barrier, and thus is useful for various display devices including the liquid crystal panel for parallax barrier.

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

Abstract

L'invention concerne un panneau de cristaux liquides qui comprend un premier substrat (21a) sur lequel est déposée une pluralité de premières électrodes transparentes (11) parallèles les unes aux autres, un deuxième substrat positionné en face du premier substrat (21a) et comportant une deuxième électrode transparente, une couche de cristaux liquides insérée entre le premier substrat (21a) et le deuxième substrat, une région d'extrémité (T) présente sur la surface du premier substrat (21a) du côté de la couche de cristaux liquides, une première borne (11t) positionnée dans la région d'extrémité (T) et reliée à la pluralité de premières électrodes transparentes (11), une deuxième borne (12t) positionnée dans la région d'extrémité (T) et reliée à la deuxième électrode transparente, et un film isolant protecteur (13a) disposé de manière à recouvrir une partie de la première borne (11t) et de la deuxième borne (12t).
PCT/JP2012/002294 2011-04-01 2012-04-02 Panneau de cristaux liquides et dispositif d'affichage équipé dudit panneau WO2012137471A1 (fr)

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JP2013508756A JPWO2012137471A1 (ja) 2011-04-01 2012-04-02 液晶パネル及びそれを備えた表示装置

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JP2011082004 2011-04-01
JP2011-082004 2011-04-01

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004029636A (ja) * 2002-06-28 2004-01-29 Optrex Corp 液晶表示パネル
JP2007171908A (ja) * 2005-12-22 2007-07-05 Samsung Sdi Co Ltd 立体映像表示装置の駆動方法
WO2011024503A1 (fr) * 2009-08-25 2011-03-03 シャープ株式会社 Panneau d’affichage, dispositif d’affichage et procédés de fabrication associés

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004029636A (ja) * 2002-06-28 2004-01-29 Optrex Corp 液晶表示パネル
JP2007171908A (ja) * 2005-12-22 2007-07-05 Samsung Sdi Co Ltd 立体映像表示装置の駆動方法
WO2011024503A1 (fr) * 2009-08-25 2011-03-03 シャープ株式会社 Panneau d’affichage, dispositif d’affichage et procédés de fabrication associés

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