WO2014073504A1 - 表示装置 - Google Patents
表示装置 Download PDFInfo
- Publication number
- WO2014073504A1 WO2014073504A1 PCT/JP2013/079829 JP2013079829W WO2014073504A1 WO 2014073504 A1 WO2014073504 A1 WO 2014073504A1 JP 2013079829 W JP2013079829 W JP 2013079829W WO 2014073504 A1 WO2014073504 A1 WO 2014073504A1
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- WIPO (PCT)
- Prior art keywords
- flexible
- flexible substrate
- substrate
- rigid
- liquid crystal
- Prior art date
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/148—Arrangements of two or more hingeably connected rigid printed circuit boards, i.e. connected by flexible means
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/361—Assembling flexible printed circuits with other printed circuits
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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
- G02F1/13454—Drivers integrated on the active matrix substrate
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09218—Conductive traces
- H05K2201/09227—Layout details of a plurality of traces, e.g. escape layout for Ball Grid Array [BGA] mounting
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10128—Display
- H05K2201/10136—Liquid Crystal display [LCD]
Definitions
- the present invention relates to a display device.
- Display devices equipped with a display panel such as a liquid crystal panel are used for electronic devices such as notebook computers.
- a display device includes a display panel having a display unit for displaying an image, a signal supply board connected to a signal supply source, and a signal supply to the display panel connected to both the display panel and the signal supply board. And a flexible substrate that relays the signal.
- a display panel having a display unit for displaying an image, a signal supply board connected to a signal supply source, and a signal supply to the display panel connected to both the display panel and the signal supply board.
- a flexible substrate that relays the signal.
- the folded portion of the flexible substrate is not directly connected to the signal supply substrate, it is necessary to route the wiring to the portion that is not folded.
- a sufficient space for routing the wiring cannot be secured.
- the connection portion between the folded portion and the unfolded portion of the flexible substrate is increased. Therefore, there is a problem that the frame portion of the display device is expanded. That is, it has been difficult to achieve both high definition and narrow frame.
- the present invention has been completed based on the above situation, and aims to achieve both high definition and narrow frame.
- the display device of the present invention has a display panel having a display unit capable of displaying an image and a non-display unit outside the display unit, a signal supply substrate connected to an external signal supply source, and flexibility.
- a flexible substrate that relays signal supply from the signal supply substrate by connecting one end side to the non-display portion of the display panel and connecting the other end side to the signal supply substrate,
- the dimension in the second direction is The end side portion that is relatively larger than the signal supply board and includes at least a portion arranged on the outside in the second direction with respect to the signal supply board is larger than the end side portion.
- a flexible substrate dimensions are relatively large for the first direction than the center portion which is disposed toward the center for the second direction.
- the signal from the signal supply board connected to the external signal supply source is attached to the non-display portion of the display panel on one end side, whereas the flexible board is connected to the signal supply board on the other end side. And is supplied to the display panel.
- the flexible substrate when the direction in which the display panel and the flexible substrate are arranged is the first direction, and the direction along the plate surface of the display panel and perpendicular to the first direction is the second direction, the dimension in the second direction is the signal. Since the size is relatively larger than the supply substrate, the attachment range to the display panel is expanded as compared with the case where the above dimensions are made the same as the signal supply substrate. Therefore, it is suitable when the number of wirings on the display panel is increased as the display panel becomes higher definition (higher resolution).
- the signal supply board is relatively smaller in the second direction than the flexible board. Therefore, when other members are arranged outside the second direction, the other members interfere with each other. It becomes difficult.
- the flexible substrate is arranged such that the end side portion including at least the portion arranged outside in the second direction with respect to the signal supply substrate is arranged on the center side in the second direction with respect to the end side portion. Since the dimension in the first direction is relatively larger than the portion, it is possible to narrow the frame of the display device by using the end side portion as a wiring pattern routing region. The reason will be described in detail below. That is, first, the flexible substrate has a dimension in the second direction relatively larger than that of the signal supply substrate. Therefore, when designing the wiring pattern of the flexible substrate, the flexible substrate is centered from the end side in the second direction. It is necessary to route the wiring patterns to the side.
- the display panel has a larger area than the need to secure a wiring pattern routing area on the display panel side. It is possible to narrow the width of the non-display portion, that is, the frame portion of the display device. As described above, it is possible to achieve both high definition of the display panel and narrow frame of the display device.
- the end portion of the flexible substrate includes a portion adjacent to the signal supply substrate in addition to a portion disposed on the outside in the second direction with respect to the signal supply substrate.
- the wiring pattern routing region becomes wider in the second direction, which is suitable for further high definition and narrow frame.
- the flexible substrate is connected to the signal supply substrate at a portion adjacent to a portion of the end portion that is disposed outside the signal supply substrate in the second direction. Formed so that the dimension in the first direction in the portion arranged on the outside in the second direction with respect to the signal supply substrate is constant or increases from the end side to the center side in the second direction. Has been.
- the flexible substrate tends to have a higher wiring pattern arrangement density as the display panel becomes higher in definition. As described above, the dimension in the first direction in the portion arranged on the outside in the second direction with respect to the signal supply board is constant or increases from the end side to the center side in the second direction.
- the dimension in the first direction is from the end side in the second direction, for example, by providing a slit in the middle of the portion of the flexible board that is arranged outside the signal supply board in the second direction.
- the display panel is more suitable for high definition.
- the signal supply board has an end side portion connected to the end side portion of the flexible substrate in a first direction rather than a center side portion connected to the center side portion of the flexible substrate.
- the dimensions of are relatively small.
- the end portion and the central portion of the signal supply board have the same dimension in the first direction, and the flexible substrate is attached to the display panel at the end portion and the central portion.
- at least the attachment positions of the end side portion and the central side portion of the flexible substrate with respect to the display panel can be made closer in the first direction.
- the end portion and the central portion of the signal supply board have the same dimension in the first direction and the signal supply board has a step at the end opposite to the flexible board side. As compared with the above, it is possible to alleviate the level difference that may occur in the signal supply substrate.
- the end portion and the central portion of the flexible substrate have the same mounting position with respect to the display panel in the first direction. In this way, it is possible to use an automatic machine when attaching the flexible substrate to the display panel. This makes it possible to efficiently and easily perform the flexible substrate mounting operation.
- the end side portion and the center side portion are at least divided, an end side divided flexible substrate made of the end side portion, and a center side divided flexible substrate made of the center side portion, At least.
- each expands and contracts individually and the amount of expansion / contraction is the size of each divided flexible substrate. It will be based on.
- the amount of expansion / contraction accompanying thermal expansion or contraction in each divided flexible substrate is relatively small compared to the amount of expansion / contraction when the flexible substrate is not divided.
- the flexible substrate when the flexible substrate is thermocompression bonded to the display panel, the amount of expansion / contraction caused by thermal expansion or thermal contraction of each divided flexible substrate that occurs due to thermocompression bonding is small, so the mounting position with respect to the display panel is It will be appropriate.
- the flexible substrate has at least an end side portion and a center side portion, and the end side portion and the center side portion have different sizes in the first direction.
- the sizes in the first direction of the divided flexible substrate and the central divided flexible substrate are substantially constant, although they are different from each other. Therefore, the manufacturing cost concerning each divided flexible substrate is suppressed.
- the center-side divided flexible substrate is divided into a plurality of pieces, and includes a plurality of center-side divided flexible substrate pieces.
- the expansion / contraction amount of each central-side divided flexible substrate piece constituting the central-side divided flexible substrate at the time of thermal expansion or contraction is the expansion / contraction amount when the central-side divided flexible substrate is not divided. It is relatively small compared. Therefore, for example, when the flexible substrate is thermocompression bonded to the display panel, the amount of expansion and contraction generated in each central-side divided flexible substrate piece becomes smaller, and the attachment position with respect to the display panel becomes more appropriate.
- the signal supply board has an end side portion connected to the end side portion of the flexible substrate in a first direction rather than a center side portion connected to the center side portion of the flexible substrate.
- the flexible substrate has the end-side divided flexible substrate connected to the end-side portion of the signal supply substrate, whereas the central-side divided flexible substrate has the The signal supply board is configured to be connected to the central portion.
- the relatively large end-side divided flexible substrate in the first direction of the flexible substrate is connected to the relatively small end-side portion in the first direction of the signal supply substrate, whereas the flexible substrate is flexible.
- the central divided flexible substrate that is relatively small in the first direction among the substrates is connected to a relatively large central portion in the first direction among the signal supply substrates. Thereby, it is avoided that each divided flexible substrate is connected so as to straddle the end portion and the center portion of the signal supply substrate.
- the non-display portion of the display panel is attached so as to be positioned between the display portion and the flexible substrate, and is generated by processing a signal supplied via the signal supply substrate and the flexible substrate.
- a drive circuit unit that drives the display panel by outputting the output signal to the display unit, and a plurality of the drive circuit units are arranged along the second direction in the non-display unit. And at least an end-side drive circuit portion connected to the end-side divided flexible substrate and a center-side drive circuit portion connected to the center-side divided flexible substrate.
- the drive circuit unit attached to the non-display unit of the display panel processes the signal supplied via the signal supply substrate and the flexible substrate to generate an output signal, and the output signal is displayed on the display unit.
- the display panel is driven by outputting the signal.
- the signal from the end-side divided flexible board is processed by the end-side drive circuit section forming the drive circuit section, whereas the signal from the center-side divided flexible board is used for the center side forming the drive circuit section.
- Processed by the drive circuit unit As described above, the drive circuit unit to be connected is divided into the end-side drive circuit unit and the central-side drive circuit unit by the end-side divided flexible substrate and the central-side divided flexible substrate.
- the wiring pattern can be efficiently arranged. Thereby, it becomes suitable for high definition and narrow frame.
- a portion that is arranged outside the signal supply substrate in the second direction and constitutes at least a part of the end portion has an inclined end on the other end side Is formed.
- the other end side of the portion arranged outside the signal supply substrate in the second direction in the flexible substrate that is, the end opposite to the display panel side is formed in an inclined shape.
- a flexible rigid substrate in which the signal supply substrate and the flexible substrate are integrated is provided, and the flexible rigid substrate includes a pair of relatively rigid flexible materials.
- a rigid substrate portion constituted by the pair of rigid materials and a part of the flexible material sandwiched between the pair of rigid materials, and a flexible portion constituted by the remaining portion of the flexible material.
- the flexible substrate portion has a dimension in the second direction that is relatively larger than that of the rigid substrate portion, and the first flexible substrate portion has the first size relative to the rigid substrate portion.
- An end side portion including at least a portion arranged outside in two directions is in front of the end side portion. Dimensions for the first direction is relatively larger than the central portion which is disposed toward the center for the second direction.
- the flexible substrate portion is arranged such that the end side portion including at least a portion arranged outside in the second direction with respect to the rigid substrate portion is arranged in the center side in the second direction with respect to the end side portion. Since the dimension in the first direction is relatively larger than the side portion, it is possible to narrow the frame of the display device by using the end side portion as a wiring pattern routing area.
- the non-display portion of the display panel is provided between the display portion and the flexible substrate, and a signal supplied via the signal supply substrate and the flexible substrate is supplied to the display portion.
- a signal transmission wiring for transmission is provided.
- the display panel is a liquid crystal panel in which liquid crystal is sealed between a pair of substrates.
- a display device can be applied as a liquid crystal display device to various electronic devices such as a portable information terminal (such as a notebook personal computer), a cellular phone, and a portable game machine.
- FIG. 1 is a perspective view schematically showing a notebook computer according to Embodiment 1 of the present invention.
- Plan view showing a liquid crystal panel and a flexible rigid substrate Cross section of liquid crystal panel
- An enlarged plan view showing a liquid crystal panel and a flexible rigid substrate Vii-vii sectional view of FIG.
- An enlarged plan view showing a liquid crystal panel and a flexible rigid substrate An enlarged plan view showing a state before the flexible rigid board is attached to the liquid crystal panel
- Xx-xx line sectional view of FIG. The perspective view showing the outline of the liquid crystal display device which concerns on Embodiment 11 of this invention.
- FIGS. 1 A first embodiment of the present invention will be described with reference to FIGS.
- a liquid crystal display device (display device) 10 used in a notebook personal computer (notebook personal computer) NP is illustrated.
- a part of each drawing shows an X axis, a Y axis, and a Z axis, and each axis direction is drawn to be a direction shown in each drawing.
- FIG. 3 or the like is used as a reference, and the upper side of the figure is the front side and the lower side of the figure is the back side.
- the notebook personal computer NP includes at least a personal computer main body NPB and a liquid crystal display device 10 that is rotatably attached to the personal computer main body NPB via a hinge portion HI.
- the PC main body NPB is a main board that is electrically connected to an input device IN such as a keyboard and a touchpad for a user to input information, and the input device IN and the liquid crystal display device 10 to exchange various signals with them. Part (not shown).
- the personal computer main body NPB is provided with an arithmetic unit composed of a CPU, a volatile main memory composed of a semiconductor memory, a non-volatile auxiliary memory composed of a hard disk, and the like. .
- the liquid crystal display device 10 includes a liquid crystal panel (display panel) 11 for displaying an image, a driver (drive circuit unit) 12 for driving the liquid crystal panel 11, and a flexible attached to the liquid crystal panel 11. It has at least a rigid substrate (flexible substrate and signal supply substrate) 13 and a backlight device (not shown) as an external light source for supplying light to the liquid crystal panel 11.
- the personal computer main body NPB and the liquid crystal display device 10 each have a cabinet made of synthetic resin or metal (exterior member, decorative material).
- the liquid crystal panel 11 As shown in FIG. 2, the liquid crystal panel 11 has a horizontally long rectangular shape (rectangular shape) as a whole, and the image is positioned at one end side (the upper side shown in FIG. 1) in the short side direction. Is displayed, and a driver 12 and a flexible rigid board 13 are respectively attached to the other end side (lower side shown in FIG. 1) in the short side direction. ing.
- An area outside the display unit AA in the liquid crystal panel 11 is a non-display unit (non-active area) NAA that does not display an image.
- the non-display unit NAA has a frame shape (frame shape) surrounding the display unit AA.
- Region (a frame portion in a CF substrate 11a to be described later) and a region secured on the other end side in the short side direction (a portion exposed without overlapping with the CF substrate 11a in an array substrate 11b to be described later)
- the mounting region (mounting region) of the driver 12 and the flexible rigid board 13 is included in the region that is secured on the other end side in the short side direction and extends along the X-axis direction.
- the long side direction in the liquid crystal panel 11 matches the X-axis direction of each drawing, and the short side direction matches the Y-axis direction of each drawing.
- a frame-like solid line that is slightly smaller than the CF substrate 11a represents the outer shape of the display portion AA, and a region outside the solid line is a non-display portion NAA.
- the screen size of the liquid crystal panel 11 is about several inches to several tens of inches, and is generally sized to be classified as small or medium-sized.
- the liquid crystal panel 11 is interposed between a pair of transparent (translucent) glass substrates 11 a and 11 b and both the substrates 11 a and 11 b, and has an optical characteristic as the electric field is applied. And a liquid crystal layer 11c containing liquid crystal molecules as a changing substance, and both substrates 11a and 11b are bonded together with a sealant (not shown) while maintaining a gap corresponding to the thickness of the liquid crystal layer 11c.
- the front side front side
- the back side back side
- the array substrate 11b is the array substrate 11b.
- the CF substrate 11a has a long side dimension substantially equal to that of the array substrate 11b, but a short side dimension smaller than that of the array substrate 11b. Then, the two end portions in the short side direction (upper side shown in FIG. 2) are bonded together. Therefore, the other end (the lower side shown in FIG. 2) in the short side direction of the array substrate 11b is in a state in which the CF substrate 11a does not overlap over a predetermined range and both the front and back plate surfaces are exposed to the outside.
- a mounting area for the driver 12 and the flexible rigid board 13 (arrangement area for the panel-side input wiring part 18 and the panel-side flexible board terminal part 19), which will be described later, is secured here.
- alignment films 11d and 11e for aligning liquid crystal molecules contained in the liquid crystal layer 11c are formed on the inner surfaces of both the substrates 11a and 11b, respectively. Further, polarizing plates 11f and 11g are attached to the outer surface sides of both the substrates 11a and 11b, respectively.
- the configuration existing in the display unit AA in the array substrate 11b and the CF substrate 11a will be sequentially described in detail.
- the gate wirings 16 and the source wirings 17 are arranged so as to surround the TFTs 14 and the pixel electrodes 15.
- the gate wiring 16 and the source wiring 17 are each made of a metal material (conductive material), and are arranged in such a manner that an insulating layer is interposed between the intersecting portions.
- the gate wiring 16 and the source wiring 17 are connected to the gate electrode and the source electrode of the TFT 14, respectively, and the pixel electrode 15 is connected to the drain electrode of the TFT 14. Further, the pixel electrode 15 has a vertically long rectangular shape (rectangular shape) in a plan view and is made of a transparent electrode material such as ITO (Indium Tin Oxide) or ZnO (Zinc Oxide).
- the array substrate 11b can be provided with a capacitor wiring (not shown) that is parallel to the gate wiring 16 and overlaps with the insulating layer while crossing the pixel electrode 15.
- the CF substrate 11 a has colored portions such as R (red), G (green), and B (blue) that are planar with the pixel electrodes 15 on the array substrate 11 b side.
- a large number of color filters 11h are arranged in parallel so as to overlap each other.
- a substantially lattice-shaped light shielding layer (black matrix) 11i for preventing color mixture is formed between each colored portion constituting the color filter 11h.
- the light shielding layer 11i is arranged so as to overlap the above-described gate wiring 16 and source wiring 17 in a plan view.
- a solid counter electrode 11j facing the pixel electrode 15 on the array substrate 11b side is provided on the surface of the color filter 11h and the light shielding layer 11i.
- the driver 12 is composed of an LSI chip having a drive circuit therein, and is based on drive power and a reference potential supplied from a main board portion which is a power source via a flexible rigid board 13.
- an input signal relating to an image supplied from the main board part which is a signal supply source via the flexible rigid board 13 is processed to generate an output signal, and the output signal is displayed on the display part AA of the liquid crystal panel 11.
- the driver 12 has a horizontally long shape when seen in a plan view, and is directly mounted on the non-display portion NAA of the array substrate 11b of the liquid crystal panel 11, that is, COG (Chip On On Glass).
- the driver 12 is arranged in the non-display portion NAA in such a manner that the long side direction coincides with the X-axis direction and the short side direction coincides with the Y-axis direction.
- a plurality of drivers 12 (12 in FIG. 2) are arranged in a straight line intermittently at substantially equal intervals along the extending direction of the mounting area, that is, the X-axis direction.
- the liquid crystal panel 11 is arranged up to both ends in the long side direction.
- the non-display portion NAA on the array substrate 11b on which the driver 12 is mounted has a panel-side driver input / output connected to a driver-side input / output terminal portion (not shown) of the driver 12 as shown in FIG.
- a terminal portion (not shown) is provided, a panel side output wiring portion (not shown) for connecting the output side of the panel side driver input / output terminal portion to the display portion AA, and a panel side driver A panel-side input wiring portion 18 for connecting the input side of the input / output terminal portion to the flexible rigid board 13 is provided.
- the panel-side input wiring portion 18 is routed so as to extend linearly along the direction in which the driver 12 and the flexible rigid board 13 are arranged (Y-axis direction, first direction).
- a panel-side flexible board connected to the flexible rigid board 13 is provided at the end of the panel-side input wiring section 18 on the flexible rigid board 13 side (the side opposite to the driver 12 side).
- a terminal portion 19 is provided.
- the panel-side input wiring portion 18 and the panel-side flexible substrate terminal portion 19 are arranged in a direction along the long-side end connected to the flexible rigid substrate 13 in the non-display portion NAA of the array substrate 11b (X-axis direction, Many of them are arranged intermittently in a second direction orthogonal to one direction.
- the panel-side driver input / output terminal section and the panel-side flexible board terminal section 19 are exposed to the outside for connection with the driver 12 and the flexible rigid board 13, whereas the panel-side output wiring section and panel Most of the side input wiring portion 18 is covered with an insulating film (not shown).
- the flexible rigid substrate 13 is directly attached to the non-display portion NAA of the liquid crystal panel 11 so as to be electrically connected to the main substrate portion provided in the personal computer main body NPB. They are electrically connected via a wiring member (not shown). Since various signals relating to images are supplied to the flexible rigid board 13 from the main board portion, the signals can be supplied to the driver 12 attached to the liquid crystal panel 11 for supply. .
- the flexible rigid substrate 13 extends along the end portion of the non-display portion NAA of the liquid crystal panel 11 to which the flexible rigid substrate 13 is attached and has a length that is slightly shorter than the long side dimension of the liquid crystal panel 11.
- the width direction of the flexible rigid substrate 13 coincides with the alignment direction of the liquid crystal panel 11 and the flexible rigid substrate 13 (Y-axis direction, first direction), whereas the length direction of the flexible rigid substrate 13 is the plate surface of the liquid crystal panel 11. It can be said that it coincides with a direction (X-axis direction, second direction) perpendicular to the direction in which the liquid crystal panel 11 and the flexible rigid substrate 13 are arranged.
- the flexible rigid board 13 is composed of a flexible material 20 rich in flexibility and a pair of rigid rigid materials 21 having little flexibility, A part of the flexible material 20 is sandwiched between a pair of rigid materials 21.
- the flexible material 20 includes a flexible base material in the form of a film made of an insulating synthetic resin material (for example, polyimide resin), and a plurality of flexible side wirings formed on the base material. It has a flexible wiring pattern composed of a portion 20a. As shown in FIG. 8, a flexible side terminal portion 20b connected to the liquid crystal panel 11 is provided at the end of the flexible side wiring portion 20a on the liquid crystal panel 11 side (the side opposite to the rigid material 21 side). ing.
- the flexible side terminal portion 20b is exposed to the outside in order to connect to the liquid crystal panel 11, whereas the flexible side wiring portion 20a is mostly covered with an insulating film (not shown). Since this flexible material 20 is made of a film-like base material, it has properties that are more flexible than the rigid material 21, and can be easily bent and deformed.
- the rigid material 21 is a power supply component that supplies driving power and a reference potential to the driver 12 on a rigid substrate having a predetermined plate thickness made of paper phenol or glass epoxy resin.
- An electronic component (circuit component) that controls transmission of an input signal related to an image to the liquid crystal panel 11 is mounted, and has a rigid-side wiring pattern (both not shown) including a plurality of rigid-side wiring portions. Yes.
- a large number of via holes (not shown) are formed through the rigid material 21, and the rigid side wiring pattern of the vias through the via holes is the flexible side wiring pattern of the flexible material 20 (specifically, the flexible side terminal portion in the flexible side wiring portion 20 a). It is electrically connected to the end on the opposite side to the 20b side). Since the rigid material 21 has a plate shape with a thickness larger than that of the flexible material 20, the rigid material 21 has a hard property that has almost no flexibility compared to the flexible material 20, and is deformed or bent. It is difficult to do.
- the flexible rigid substrate 13 is composed of a pair of rigid materials 21 and a portion of the flexible material 20 sandwiched between them, and has a rigid substrate portion 22 having a laminated structure.
- the flexible material 20 includes a flexible substrate portion 23 constituted by the remaining portion that is not sandwiched between the pair of rigid materials 21. That is, the rigid board portion 22 includes a pair of rigid materials 21 and a portion of the flexible material 20 that overlaps the rigid material 21 in a plan view, whereas the flexible substrate portion 23 includes the flexible material 20. Among these, it is comprised only by the rigid material 21 and the part which is not overlapped seeing on a plane.
- the flexible substrate portion 23 is attached to the non-display portion NAA of the liquid crystal panel 11 at one end side (the upper side shown in FIG. 2) in the Y-axis direction, whereas the other end side (shown in FIGS. 2 and 6).
- the lower side is connected to the rigid board portion 22.
- the flexible substrate portion 23 and the rigid substrate portion 22 are electrically connected by a flexible side wiring pattern (flexible side wiring portion 20a) of the flexible material 20 that is arranged in a manner straddling each other.
- the rigid board part 22 is provided with a connector part (not shown) on any one of the rigid members 21, and this connector part is connected to a wiring member (not shown), so that the main board part of the personal computer main body NPB is connected. Are electrically connected to each other.
- the flexible-side terminal portion 20b of the flexible substrate portion 23 is electrically and mechanically connected to the panel-side flexible substrate terminal portion 19 of the liquid crystal panel 11 through an ACF (Anisotropic Conductive Film) (not shown). (See FIG. 8).
- ACF Application Chemical Vapor Film
- the rigid rigid substrate portion 22 functions as a “signal supply substrate”
- the flexible flexible substrate portion 23 functions as a “flexible substrate”.
- a pair of hinge portions HI provided at the joint between the personal computer main body NPB and the liquid crystal display device 10 with respect to the liquid crystal panel 11 and the flexible rigid substrate 13 having the above-described configuration are arranged at the following positions. That is, as shown in FIG. 2, the pair of hinge portions HI are outward in the Y-axis direction (lower side shown in FIG. 2) with respect to both corners of the end portion of the liquid crystal panel 11 to which the flexible rigid substrate 13 is attached.
- the flexible rigid board 13 is arranged on the outer side (the right side or the left side shown in FIG. 2) in the X-axis direction with respect to both ends in the length direction.
- the hinge portion HI is illustrated by a two-dot chain line.
- the driver 12 is also arranged near both ends in the X-axis direction of the non-display portion NAA of the liquid crystal panel 11, and the panel side pulled out from the driver 12 at both ends. In order to connect to the input wiring portion 18, the length of the flexible rigid substrate 13 tends to be longer in the X-axis direction.
- the hinge part HI is disposed at a position where the flexible rigid board 13 is sandwiched from both outsides in the X-axis direction, there is a problem of interference with the lengthening of the flexible rigid board 13.
- a reference example shown in FIG. 22 will be described as an example of a configuration for avoiding interference with the hinge portion HI.
- the panel side input wiring part 2 formed in the non-display part NAA of the liquid crystal panel 1 is directed from the driver 3 to the flexible rigid board 4.
- the X-axis direction so as to be concentrated from the end side to the center side, and to reduce the length of the flexible rigid substrate 4 accordingly.
- the installation space L necessary for routing the panel-side input wiring portion 2 in the non-display portion NAA of the liquid crystal panel 1 becomes wider in the Y-axis direction (the alignment direction of the liquid crystal panel 1 and the flexible rigid substrate 4). Therefore, the range of the non-display area NAA is expanded along with the Y-axis direction. For this reason, the frame portion of the liquid crystal display device becomes wide, and it becomes impossible to narrow the frame. In other words, it was difficult to achieve both high definition and narrow frame.
- the flexible rigid substrate 13 has a dimension in the X-axis direction (second direction) in the flexible substrate portion 23 that is the same as that of the rigid substrate portion 22. And a flexible end portion (at least a portion (first end portion) 24a disposed outside the rigid substrate portion 22 in the X-axis direction with respect to the rigid substrate portion 22).
- the dimension of the end side portion) 24 in the Y-axis direction (first direction) is the same as that of the flexible center side portion (center side portion) 25 arranged on the center side in the X-axis direction with respect to the flexible end side portion 24. It is relatively larger than the same size.
- the dimension (length dimension) about the X-axis direction in the flexible substrate part 23 is relatively larger than the same dimension of the rigid substrate part 22, it is assumed that these dimensions are the same. Compared to the case, the attachment range of the flexible substrate portion 23 with respect to the liquid crystal panel 11 in the X-axis direction is expanded, thereby easily supporting the increase in the number of flexible side wiring portions 20a due to the high definition of the liquid crystal panel 11. It becomes possible to do. On the other hand, since the dimension in the X-axis direction of the rigid board part 22 is relatively smaller than the same dimension of the flexible board part 23, the hinge part arranged on the outer side in the X-axis direction Interference with HI is less likely to occur.
- the dimension in the X-axis direction that is, the length dimension in the flexible substrate portion 23 is slightly shorter than the long side dimension of the liquid crystal panel 11 and is almost the same as the length dimension of the mounting region of the driver 12 in the liquid crystal panel 11. While the length is the same, the length of the rigid board 22 is shorter than that of the flexible board 23 and shorter than the length of the mounting area of the driver 12 in the liquid crystal panel 11. Yes.
- the difference in the length dimension between the flexible board portion 23 and the rigid board portion 22 is the same as or slightly smaller than the length dimension of the arrangement region of the pair of hinge portions HI.
- the dimension (width dimension) in the Y-axis direction of the flexible end-side part 24 including at least the part 24a arranged on the outside in the X-axis direction with respect to the rigid board part 22 in the flexible substrate part 23 is more flexible. Since the flexible central side portion 25 disposed on the central side in the X-axis direction with respect to the end side portion 24 is relatively larger than the same dimension, the relatively wide flexible end side portion 24 is By using it as the routing area of the flexible wiring portion 20a, the frame of the liquid crystal display device 10 can be reduced.
- the flexible side wiring part 20a is gathered from the end side to the center side in the X axis direction from the flexible side terminal part 20b toward the rigid board part 22 in the Y axis direction. It is necessary to draw around.
- the flexible end portion 24 is A sufficient routing area for consolidating the flexible wiring portions 20a toward the center is ensured.
- the panel-side input wiring portion 18 in the liquid crystal panel 11 is moved from the end side in the X-axis direction.
- the width of the non-display portion NAA of the liquid crystal panel 11, that is, the frame portion of the liquid crystal display device 10 can be made narrower than the necessity of securing a routing area for routing to the center side.
- both the high definition of the liquid crystal panel 11 and the narrow frame of the liquid crystal display device 10 can be achieved.
- the flexible side wiring part 20a formed in the flexible end side part 24 in the flexible substrate part 23 includes the one having the bent part 20a1 in the middle so as to be concentrated from the end side to the center side in the X-axis direction. .
- the flexible end portion 24 of the flexible substrate portion 23 includes a first end portion 24 a that is a portion disposed on the outer side in the X-axis direction with respect to the rigid substrate portion 22.
- a second end side portion 24b which is a portion adjacent to the center side is included.
- the first end portion 24a formed of a portion that does not overlap (does not overlap) with the rigid substrate portion 22 in the X axis direction overlaps with the rigid substrate portion 22 in the X axis direction (
- a flexible end-side portion 24 having a relatively large dimension in the Y-axis direction is configured by the second end-side portion 24b formed of an end portion in the X-axis direction among the overlapping portions.
- the flexible end portion 24 of the flexible substrate portion 23 is arranged so as to overlap the two drivers 12 arranged closer to the end in the X-axis direction in the liquid crystal panel 11 in the X-axis direction and connected to the two drivers 12.
- the first end side portion 24a near the end of the flexible end portion 24 of the flexible substrate portion 23 is not directly connected to the rigid substrate portion 22, whereas the second end side portion 24b near the center is A flexible side wiring portion 20a that is directly connected to the rigid board portion 22 and connected to the flexible side terminal portion 20b formed in the first end portion 24a is routed.
- the routing region of the flexible side wiring portion 20a in the flexible end side portion 24 of the flexible substrate portion 23 is further expanded in the X-axis direction, so that the liquid crystal panel 11 can be further refined and the liquid crystal display device 10 This is more suitable for narrowing the frame.
- the wiring region in which the wiring pattern composed of the flexible wiring portion 20 a is formed in the flexible end portion 24 of the flexible substrate portion 23 has a dimension in the Y-axis direction that is flexible end portion 24. It is almost constant over the entire area. That is, the flexible end portion 24 of the flexible substrate portion 23 has a substantially constant width from the end side to the center side in the X-axis direction and does not have a slit or the like in the middle. The region also does not have a stenosis portion that locally narrows in the middle from the end side to the center side in the X-axis direction, and has a substantially constant width over the entire region.
- the liquid crystal panel 11 is more suitable for high definition.
- the rigid substrate portion 22 has a rigid end side portion (signal supply side end portion) 26 connected to the flexible end portion 24 of the flexible substrate portion 23 as a flexible substrate.
- the dimension in the Y-axis direction (first direction) is relatively smaller than the rigid central side portion (signal supply side central side portion) 27 connected to the flexible central side portion 25 of the portion 23.
- the difference in dimension in the Y axis direction between the rigid end side portion 26 and the rigid center side portion 27 is substantially equal to the difference in dimension in the Y axis direction between the flexible end side portion 24 and the flexible center side portion 25. It is said that.
- the rigid end side portion 26 and the rigid center side portion 27 are flush with each other at the end opposite to the flexible substrate portion 23 side (the lower side shown in FIGS. 2 and 6). Further, it is avoided that a step is generated at the end portion of the rigid substrate portion 22 opposite to the flexible substrate portion 23 side, so that interference with other members including the hinge portion HI is less likely to occur.
- the rigid end side portion 26 and the rigid center side portion 27 have a stepped end on the flexible substrate portion 23 side (the upper side shown in FIGS. 2 and 6), and the rigid end side portion 26 is on the rigid center side. Recessed from the portion 27 to the rigid substrate portion 22 side (the side opposite to the liquid crystal panel 11 side).
- the flexible end side portion 24 and the flexible central side portion 25 have liquid crystal panel 11 side (opposite side to the rigid substrate portion 22 side) ends that are flush with each other, and the liquid crystal in the Y-axis direction.
- the mounting position on the panel 11 is the same. This makes it possible to use an automatic machine when attaching the flexible substrate portion 23 to the liquid crystal panel 11, thereby making it possible to efficiently and easily attach the flexible substrate portion 23.
- substrate part 22 in the flexible end side part 24 and the flexible center side part 25 has comprised the level
- the liquid crystal display device (display device) 10 of the present embodiment includes the liquid crystal panel (display panel) 11 having the display unit AA capable of displaying an image and the non-display unit NAA outside the display unit AA, and the external display unit AA.
- a rigid substrate portion (signal supply substrate) 22 connected to a signal supply source and has flexibility, and one end side is attached to the non-display portion NAA of the liquid crystal panel 11, while the other end side is a rigid substrate portion.
- 22 is a flexible substrate portion (flexible substrate) 23 that relays the supply of signals from the rigid substrate portion 22, and the alignment direction of the liquid crystal panel 11 and the flexible substrate portion 23 is the first direction (Y-axis).
- the flexible end-side portion (end-side portion) 24 including at least the first end-side portion 24a that is a portion disposed outside the rigid substrate portion 22 in the second direction is larger.
- the signal from the rigid board part 22 connected to the external signal supply source is attached to the non-display part NAA of the liquid crystal panel 11 at one end side, and connected to the rigid board part 22 at the other end side. Relayed by the flexible substrate portion 23 to be supplied to the liquid crystal panel 11.
- the flexible substrate unit 23 has a second direction when the alignment direction of the liquid crystal panel 11 and the flexible substrate unit 23 is a first direction, and the direction along the plate surface of the liquid crystal panel 11 and perpendicular to the first direction is a second direction. Since the dimension with respect to the direction is relatively larger than that of the rigid substrate portion 22, the attachment range for the liquid crystal panel 11 is expanded as compared with the case where the above dimensions are made the same as the rigid substrate portion 22. Become.
- the rigid substrate portion 22 is relatively smaller in dimension in the second direction than the flexible substrate portion 23, when other members are disposed outside the second direction, other members are disposed. Becomes difficult to interfere.
- the flexible end side portion 24 including at least the first end side portion 24 a which is a portion disposed on the outside in the second direction with respect to the rigid substrate portion 22 is flexible end side portion 24.
- the flexible end part 24 is used as a wiring pattern routing area. By doing so, it is possible to narrow the frame of the liquid crystal display device 10, and the reason will be described in detail below. That is, first, since the flexible substrate portion 23 is relatively larger in dimension in the second direction than the rigid substrate portion 22, when designing the wiring pattern of the flexible substrate portion 23, the second direction Need to be routed so that the wiring patterns are gathered from the end side to the center side.
- the flexible end side portion 24 of the flexible substrate portion 23 is relatively larger in the first direction than the flexible central side portion 25, a wiring pattern is formed on the flexible end side portion 24.
- a sufficient routing area for concentrating toward the center side is secured. Therefore, if the dimensions in the first direction of the flexible end side portion and the flexible center side portion of the flexible substrate portion are the same, it is necessary to secure a wiring pattern routing area on the liquid crystal panel 11 side.
- the width of the non-display portion NAA of the liquid crystal panel 11, that is, the frame portion of the liquid crystal display device 10 can be reduced. As described above, both the high definition of the liquid crystal panel 11 and the narrow frame of the liquid crystal display device 10 can be achieved.
- the flexible end portion 24 of the flexible substrate portion 23 is a portion adjacent to the first end portion 24a in addition to the first end portion 24a, which is a portion disposed outside the rigid substrate portion 22 in the second direction.
- a two-end portion 24b is included.
- the flexible substrate portion 23 is a second end side that is a portion adjacent to the first end side portion 24a that is a portion of the flexible end side portion 24 that is disposed outside the rigid substrate portion 22 in the second direction.
- the portion 24 b is connected to the rigid board portion 22, and the dimension in the first direction of the first end side portion 24 a, which is a portion arranged outside the rigid board portion 22 in the second direction, is the second dimension. It is formed so that the direction is constant from the end side toward the center side.
- the flexible substrate portion 23 tends to have a higher wiring pattern arrangement density as the liquid crystal panel 11 becomes higher definition.
- the dimension in the first direction in the first end side portion 24a which is the portion arranged on the outside in the second direction with respect to the rigid substrate portion 22, is constant from the end side to the center side in the second direction.
- a first slit is provided in the middle of the first end side portion, which is a portion of the flexible substrate portion that is disposed outside the rigid substrate portion in the second direction.
- the liquid crystal panel 11 is more suitable for high definition.
- the rigid substrate portion 22 has a rigid end portion (end portion) 26 connected to the flexible end portion 24 of the flexible substrate portion 23 connected to the flexible central portion 25 of the flexible substrate portion 23.
- the dimension in the first direction is relatively smaller than the rigid center side portion (center side portion) 27.
- the rigid end side portion and the rigid central side portion of the rigid substrate portion have the same size in the first direction, and the mounting position of the flexible substrate portion with respect to the liquid crystal panel 11 is set to the flexible end side portion and the flexible end portion.
- the center side portion is shifted in the first direction
- at least the mounting positions of the flexible end side portion 24 and the flexible center side portion 25 of the flexible substrate portion 23 with respect to the liquid crystal panel 11 are made closer in the first direction.
- the rigid end portion and the rigid central portion of the rigid substrate portion have the same dimension in the first direction, and a step is provided at the end portion of the rigid substrate portion opposite to the flexible substrate portion side. Compared with the case, the step which may occur in the rigid substrate portion 22 can be relaxed.
- the rigid end portion 26 and the rigid central portion 27 of the rigid substrate portion 22 are flush with each other at the end opposite to the flexible substrate portion 23 side. By doing so, it is possible to avoid a step at the end of the rigid substrate portion 22 opposite to the flexible substrate portion 23 side, so that interference with other members is less likely to occur.
- the flexible end side portion 24 and the flexible central side portion 25 in the flexible substrate portion 23 have the same mounting position with respect to the liquid crystal panel 11 in the first direction. In this way, it is possible to use an automatic machine when attaching the flexible substrate 23 to the liquid crystal panel 11. Thereby, it becomes possible to perform the attachment work of the flexible substrate part 23 efficiently and easily.
- substrate 13 by which the rigid board
- a rigid substrate portion 22 composed of a pair of rigid materials 21 and a part of the flexible material 20 sandwiched between the pair of rigid materials 21 and the remaining portion of the flexible material 20.
- the flexible substrate portion 23 includes a flexible substrate portion 23, and the flexible substrate portion 23 is relatively larger in dimension in the second direction than the rigid substrate portion 22. On the other hand, it includes at least a first end portion 24a which is a portion arranged on the outside in the second direction.
- the dimensions of the first direction than the flexible central portion 25 which is disposed toward the center for the second direction with respect to the flexible end portion 24 is relatively large.
- the rigid substrate portion and the flexible substrate portion are temporarily separated from each other by thermocompression bonding. Compared with the case where it is mechanically attached, it is possible to obtain an effect such that attachment failure is less likely to occur and wiring resistance is reduced.
- the flexible substrate portion 23 is relatively larger in dimension in the second direction than the rigid substrate portion 22, compared with the case where the above dimensions are made the same as the rigid substrate portion 22, The attachment range with respect to the liquid crystal panel 11 is expanded, which is suitable for high definition of the liquid crystal panel 11.
- the rigid substrate portion 22 is relatively smaller in dimension in the second direction than the flexible substrate portion 23, when other members are disposed outside the second direction, other members are disposed. Becomes difficult to interfere.
- the flexible end portion 24 includes the flexible end portion 24 including at least the first end portion 24a which is a portion disposed outside the rigid substrate portion 22 in the second direction.
- the flexible end part 24 is used as a wiring pattern routing area. By doing so, it is possible to reduce the frame of the liquid crystal display device 10.
- the non-display portion NAA of the liquid crystal panel 11 is provided between the display portion AA and the flexible substrate portion 23, and signals supplied via the rigid substrate portion 22 and the flexible substrate portion 23 are displayed on the display portion AA.
- a panel-side input wiring portion (signal transmission wiring) 18 is provided. In this way, when designing the wiring pattern of the flexible substrate portion 23, if the wiring pattern is gathered from the end side toward the center side in the flexible end portion 24 of the flexible substrate portion 23, the liquid crystal When the panel side input wiring portion 18 provided in the non-display portion NAA of the panel 11 is provided, the necessity of consolidating the panel side input wiring portion 18 from the end side toward the center side is reduced.
- the display panel is a liquid crystal panel 11 in which a liquid crystal layer 11c is sealed between a pair of substrates 11a and 11b.
- a display device as the liquid crystal display device 10 can be applied to various electronic devices such as a portable information terminal (such as a notebook personal computer), a cellular phone, and a portable game machine.
- the flexible material 120 constituting the flexible rigid substrate 113 is divided into a plurality (six in FIG. 9) in the X-axis direction.
- An end-side divided flexible board portion (end-side divided flexible board) 28 constituting the flexible end-side portion 124 and a center-side divided flexible board portion (center-side divided flexible board) 29 constituting the flexible center-side portion 125 are provided. It is supposed to be.
- segmentation flexible substrate part 29 is divided
- the pair of end-side divided flexible substrate portions 28 are arranged at both ends of the flexible substrate portion 123, while the center-side divided flexible substrate portion 29 is sandwiched between the pair of end-side divided flexible substrate portions 28 in the X-axis direction. It is arranged at the position.
- Four of the central-side divided flexible board part pieces 30 constituting the central-side divided flexible board part 29 are arranged intermittently at equal intervals along the X-axis direction.
- the boundary position between the end-side divided flexible board portion 28 and the center-side divided flexible board portion 29 constituting the flexible board portion 123 is the rigid end side portion 126 and the rigid center side portion in the rigid board portion 122. 127 and the boundary position with 127. Accordingly, the end-side divided flexible substrate portion 28 is connected to the rigid end-side portion 126, while the center-side divided flexible substrate portion 29 is connected to the rigid center-side portion 127. Furthermore, as shown in FIG. 9, the end-side divided flexible board portion 28 is connected to two end-side drivers 31 that are closer to the end in the X-axis direction among the driver 112 group mounted on the liquid crystal panel 111.
- the central-side divided flexible board portion 29 is connected to eight central-side drivers 32 arranged closer to the center than the end-side drivers 31 in the driver 112 group. Further, the four central-side divided flexible board part pieces 30 constituting the central-side divided flexible board part 29 are individually connected to two of the eight central-side drivers 32, respectively.
- each of the divided flexible substrate portions 28 and 29 forming the flexible substrate portion 123 is individually liquid crystal in the X-axis direction using an alignment mark or the like (positioning portion) not shown.
- the flexible substrate portion 123 is thermocompression bonded to the liquid crystal panel 111 while positioning the panel 111, the thermal expansion of each of the divided flexible substrate portions 28 and 29 caused by thermocompression bonding is achieved.
- the amount of expansion / contraction due to thermal contraction is small, and the attachment position with respect to the liquid crystal panel 111 is appropriate.
- the flexible substrate 123 has at least a flexible end side portion 124 and a flexible central side portion 125 that are divided, and the flexible end side portion 124 and the flexible central side portion 125 have different sizes in the Y-axis direction. Therefore, the sizes of the end-side divided flexible board portion 28 and the central-side divided flexible board portion 29 in the Y-axis direction are substantially constant, although they are different from each other. Therefore, the manufacturing cost concerning each division
- the end-side divided flexible substrate portion 28 that is relatively large in the Y-axis direction in the flexible substrate portion 123 is connected to the rigid end-side portion 126 that is relatively small in the Y-axis direction in the rigid substrate portion 122.
- the central divided flexible substrate 29 that is relatively small in the Y-axis direction in the flexible substrate 123 is connected to the rigid central portion 127 that is relatively large in the Y-axis direction in the rigid substrate 122. It is avoided that each of the divided flexible board portions 28 and 29 is connected across the rigid end side portion 126 and the rigid center side portion 127 of the end side divided flexible board portion 28.
- the signal from the end-side divided flexible board portion 28 is processed by the connected end-side driver 31, while the signal from the center-side divided flexible board portion 29 is sent by the connected center-side driver 32. Will be processed.
- the driver 112 to be connected is divided into the end-side driver 31 and the center-side driver 32 in the end-side divided flexible board portion 28 and the center-side divided flexible board portion 29, each divided flexible board.
- the panel-side input wiring portion 118 having a wiring pattern for connecting the portions 28 and 29 and the drivers 31 and 32 is provided in the non-display portion NAA, the panel-side input wiring portion 118 can be efficiently arranged. Become. Thereby, it becomes suitable for high definition and narrow frame.
- the flexible substrate portion 123 includes the flexible end-side portion 124 and the flexible central-side portion 125 at least divided, and the end-side divided flexible substrate portion including the flexible end-side portion 124.
- (End-side divided flexible substrate) 28 and at least a central-side divided flexible substrate portion (center-side divided flexible substrate) 29 including a flexible central-side portion 125 are provided.
- each of them is individually expanded and contracted, and the amount of expansion and contraction is different for each divided flexible substrate portion. This is based on the size of the substrate portions 28 and 29.
- the amount of expansion / contraction associated with thermal expansion or contraction in each of the divided flexible substrate portions 28 and 29 is relatively smaller than the amount of expansion / contraction when the flexible substrate portion is not divided. Therefore, for example, when the flexible substrate portion 123 is thermocompression bonded to the liquid crystal panel 111, the amount of expansion and contraction caused by thermal expansion or thermal contraction of each of the divided flexible substrate portions 28 and 29 caused by thermocompression is small.
- the mounting position with respect to the liquid crystal panel 111 is appropriate.
- the flexible substrate portion 123 has at least a flexible end side portion 124 and a flexible central side portion 125 divided, and the flexible end side portion 124 and the flexible central side portion 125 are different in size in the first direction. Therefore, the sizes of the end-side divided flexible substrate portion 28 and the central-side divided flexible substrate portion 29 in the first direction are substantially constant, although they are different from each other. Therefore, the manufacturing cost concerning each division
- the central-side divided flexible board portion 29 is divided into a plurality of pieces, and is composed of a plurality of center-side divided flexible board portion pieces (center-side divided flexible board piece pieces) 30. If it does in this way, the expansion / contraction amount of each center side division
- the rigid substrate portion 122 is such that the rigid end side portion 126 connected to the flexible end portion 124 of the flexible substrate portion 123 is connected to the flexible center side portion 125 of the flexible substrate portion 123.
- the dimension in the first direction is relatively smaller than that of the flexible substrate portion 123, whereas the end-side divided flexible substrate portion 28 is connected to the rigid end-side portion 126 of the rigid substrate portion 122.
- the central divided flexible substrate portion 29 is configured to be connected to the rigid central portion 127 of the rigid substrate portion 122. In this way, the relatively large end-side divided flexible substrate portion 28 in the first direction in the flexible substrate portion 123 is connected to the rigid end-side portion 126 that is relatively small in the first direction in the rigid substrate portion 122.
- the central divided flexible substrate 29 that is relatively small in the first direction in the flexible substrate 123 is connected to the rigid central portion 127 that is relatively large in the first direction in the rigid substrate 122. Is done.
- the divided flexible board portions 28 and 29 can be prevented from being connected across the rigid end side portion 126 and the rigid center side portion 127 of the rigid board portion 122.
- the non-display portion NAA of the liquid crystal panel 111 is attached so as to be positioned between the display portion AA and the flexible substrate portion 123, and processes signals supplied through the rigid substrate portion 122 and the flexible substrate portion 123.
- a driver (driving circuit unit) 112 that drives the liquid crystal panel 111 by outputting the generated output signal to the display unit AA is provided, and a plurality of drivers 112 are arranged along the second direction in the non-display unit NAA.
- Circuit portion) 32 at least.
- the driver 112 attached to the non-display part NAA of the liquid crystal panel 111 processes the signals supplied via the rigid board part 122 and the flexible board part 123 to generate an output signal, and outputs the output signal.
- the liquid crystal panel 111 is driven by outputting a signal to the display unit AA.
- the signal from the end-side divided flexible board portion 28 is processed by the end-side driver 31 that forms the driver 112
- the signal from the center-side divided flexible board portion 29 is the center side that forms the driver 112. It is processed by the driver 32 for use.
- the driver 112 to be connected is divided into the end-side driver 31 and the center-side driver 32 by the end-side divided flexible board portion 28 and the center-side divided flexible board portion 29.
- Embodiment 3 A third embodiment of the present invention will be described with reference to FIG. In this Embodiment 3, what changed the planar shape of the end side division
- the first end-side portion 224 a arranged outside the rigid board portion 222 in the X-axis direction (second direction) is as shown in FIG. 12.
- an inclined portion 33 is formed.
- the inclined portion 33 is formed at the end of the first end portion 224a opposite to the liquid crystal panel 211 side, and is inclined with respect to both the X-axis direction and the Y-axis direction when viewed in a plan view. It has a slope shape (linear slope shape) so that the tilt angle is constant.
- the inclined portion 33 is provided in a range from a connection position with the rigid substrate portion 222 in the first end side portion 224a to a position before the attachment position with respect to the liquid crystal panel 211. Providing such an inclined portion 33 makes it difficult for the end-side divided flexible substrate portion 228 to interfere with the hinge portion HI adjacently disposed.
- the first end-side portion 224a disposed on the outer side with respect to the rigid substrate portion 222 in the X-axis direction is in the Y-axis direction (first It can be said that the dimension with respect to (direction) is formed so as to continuously and gradually increase from the end side toward the center side in the X-axis direction.
- the flexible substrate portion 223 is the first end-side portion 224a that is the portion of the flexible end-side portion 224 that is disposed outside the rigid substrate portion 222 in the second direction.
- the second end side portion 224b which is a portion adjacent to the rigid substrate portion 222, is connected to the rigid substrate portion 222, and the first end side portion 224a, which is a portion disposed outside the rigid substrate portion 222 in the second direction.
- the dimension in the first direction is increased in the second direction from the end side toward the center side.
- the flexible substrate portion 223 tends to have a higher wiring pattern arrangement density as the liquid crystal panel 211 becomes higher definition.
- the dimension in the first direction in the first end portion 224a which is the portion arranged outward in the second direction with respect to the rigid substrate portion 222, increases from the end side to the center side in the second direction.
- a slit is provided in the middle of the first end side portion, which is a portion of the flexible substrate portion that is disposed outside the rigid substrate portion in the second direction.
- the liquid crystal panel 211 is further suitable for high definition.
- the flexible substrate portion 223 is a portion that is disposed outside the rigid substrate portion 222 in the second direction and constitutes at least a part of the flexible end portion 224 (end-side divided flexible substrate portion 228).
- the end portion on the other end side of the first end portion 224a is formed in an inclined shape.
- the other end side of the first end side portion 224a that is the portion disposed outside the rigid substrate portion 222 in the second direction in the flexible substrate portion 223, that is, the side opposite to the liquid crystal panel 211 side. Since the end portion is formed in an inclined shape, when another member is disposed on the outer side in the first direction with respect to the flexible substrate portion 223, the other member is less likely to interfere.
- Embodiment 4 A fourth embodiment of the present invention will be described with reference to FIG. In this Embodiment 4, what changed further the planar shape of the end side division
- the inclined portion 333 provided in the first end-side portion 324a disposed outside the rigid substrate portion 322 in the X-axis direction is shown in FIG. As shown, it is substantially arcuate when viewed in plan.
- the inclined portion 333 has an arcuate shape that bulges (protrudes) to the outside of the line (string) connecting the two end positions, that is, the side opposite to the liquid crystal panel 311 side. Even with such a configuration, an effect is obtained in which interference between the end-side divided flexible substrate portion 328 and the hinge portion HI hardly occurs as in the third embodiment.
- Embodiment 5 of the present invention will be described with reference to FIG.
- the planar shape of the end-side divided flexible board portion 428 is further changed from the above-described third embodiment.
- action, and effect as above-mentioned Embodiment 3 is abbreviate
- the inclined portion 433 provided on the first end-side portion 424a disposed outside the rigid substrate portion 422 in the X-axis direction is shown in FIG.
- the first end portion 424a is provided over a range from a connection position with the rigid substrate portion 422 to a mounting position with respect to the liquid crystal panel 411, that is, almost the entire region that does not overlap with the liquid crystal panel 411. Even with such a configuration, an effect is obtained in which interference between the end-side divided flexible substrate portion 428 and the hinge portion HI is less likely to occur as in the third embodiment.
- Embodiment 6 of the present invention will be described with reference to FIG.
- a structure in which the central-side divided flexible substrate portion 529 is not divided from the above-described second embodiment is shown.
- action, and effect as above-mentioned Embodiment 2 is abbreviate
- the flexible substrate portion 523 includes a pair of end-side divided flexible substrate portions 528 and a single center disposed between the pair of end-side divided flexible substrate portions 528. It is comprised from the side division
- the division position in the flexible substrate portion 523 is set only at the boundary position between the flexible end portion 524 and the flexible central portion 525.
- segmentation flexible substrate part 529 becomes a non-division structure which is not divided on the way about the X-axis direction.
- the center-side divided flexible substrate portion 529 has a substantially constant dimension in the Y-axis direction
- the end-side divided flexible substrate portion 528 also has a dimension in the Y-axis direction over the entire length. It is almost constant.
- Embodiment 7 of the present invention will be described with reference to FIG.
- This Embodiment 7 shows what changed the division
- FIG. 7 the overlapping description about the same structure, an effect
- the flexible substrate portion 623 includes a pair of end-side divided flexible substrate portions 628 including the entire area of the flexible end-side portion 624 and a part of the flexible center-side portion 625, and a flexible center. It is composed of one central side divided flexible substrate portion 629 including the remaining portion of the side portion 625.
- Each end-side divided flexible substrate portion 628 includes a portion adjacent to the flexible end-side portion 624 in the flexible center-side portion 625 in addition to the entire area of the flexible end-side portion 624, and the length dimension thereof is the center-side division. It is approximately the same as the flexible substrate portion 629.
- the flexible substrate portion 623 is equally divided into three equal intervals, and the division position is set to a position shifted in the X-axis direction from the boundary position between the flexible end side portion 624 and the flexible center side portion 625.
- Each of the end-side divided flexible board portions 628 is connected to four drivers 612 counted from the end side in the non-display portion NAA of the liquid crystal panel 611.
- the center-side divided flexible substrate portion 629 is connected to the four drivers 612 on the center side in the non-display portion NAA of the liquid crystal panel 611.
- the rigid board portion 722 has a dimension (width dimension) in the Y-axis direction that is substantially constant over the entire length, and extends in the X-axis direction when viewed in a plane. It is made into the shape bent by. Specifically, a rigid end side portion 726 and a rigid center side portion 727 constituting the rigid substrate portion 722 are both stepped at the end portion on the flexible substrate portion 723 side and the opposite end portion thereof. The side portion 726 is retracted to the rigid substrate portion 722 side (the side opposite to the flexible substrate portion 723 side) from the rigid center side portion 727. The rigid board portion 722 is bent in a substantially crank shape on the way from the rigid end side portion 726 to the rigid center side portion 727. The rigid end side portion 726 and the rigid center side portion 727 have substantially the same width dimension.
- a ninth embodiment of the present invention will be described with reference to FIG.
- the shape of the rigid substrate portion 822 is changed while the formation range of the flexible end portion 824 in the flexible substrate portion 823 is changed from the second embodiment.
- action, and effect as above-mentioned Embodiment 2 is abbreviate
- the flexible end portion 824 is configured by only a portion of the flexible substrate portion 823 that is disposed outside in the X-axis direction with respect to the rigid substrate portion 822. Therefore, the flexible central side portion 825 is constituted by the entire portion of the remaining portion of the flexible substrate portion 823, that is, the entire portion overlapping the rigid substrate portion 822 in the X-axis direction.
- the rigid substrate portion 822 has a substantially straight shape in which the dimension (width dimension) in the Y-axis direction is substantially constant over the entire length and is not bent in the middle along the X-axis direction. It is said.
- the end portion on the flexible substrate portion 823 side and the end portion on the opposite side are both linear.
- the flexible side wiring part 820a formed on the flexible end side part 824 is connected from the end part along the Y-axis direction of the rigid substrate part 822.
- the liquid crystal panel 911 is attached with one end side of a flexible substrate 34 that is rich in flexibility, and the other end side of the flexible substrate 34 has flexibility.
- a rigid rigid substrate (signal supply substrate) 35 that has almost no signal is connected.
- the flexible substrate 34 is divided into a plurality of portions in the same manner as the flexible substrate portion 123 described in the second embodiment, and constitutes an end-side divided flexible substrate 34a constituting the flexible end-side portion 924 and a flexible central-side portion 925. And a central divided flexible substrate 34b.
- a flexible side wiring portion 920a is formed on each of the divided flexible substrates 34a and 34b, and one end of the flexible side wiring portion 920a is connected to a panel side flexible substrate terminal portion of the liquid crystal panel 911.
- a terminal portion is provided, and further, a flexible-side flexible terminal portion for a rigid substrate connected to a rigid-substrate-side flexible substrate terminal portion of the rigid substrate 35 is provided on the other end side of the flexible-side wiring portion 920a.
- Each of these terminal portions is electrically connected via an ACF.
- illustration of these each terminal part and ACF is abbreviate
- segmentation flexible substrate 34a has a part distribute
- the rigid end side portion 35a connected to the end-side divided flexible substrate 34a is relatively smaller in size in the Y-axis direction than the rigid center-side portion 35b connected to the center-side divided flexible substrate 34b. It is supposed to be.
- FIG. 11 An eleventh embodiment of the present invention will be described with reference to FIG.
- a tablet notebook personal computer TNP including a liquid crystal display device is shown.
- the tablet-type notebook personal computer TNP includes a liquid crystal display device, a touch panel for a user to input information, and a cover panel for protecting the touch panel. Therefore, it does not have a hinge portion, that is, a folding structure, like the notebook-side personal computer described in the first embodiment. Even in such a tablet-type notebook personal computer TNP, there may be a concern that an internal speaker, a battery, or the like may interfere with a flexible rigid substrate provided in the liquid crystal display device. Even in such a case, if the flexible rigid substrate is configured as described in the first embodiment, the flexible rigid substrate can hardly interfere with components such as a speaker and a battery.
- the present invention is not limited to the embodiments described with reference to the above description and drawings.
- the following embodiments are also included in the technical scope of the present invention.
- the present invention includes those in which the length of the first end side portion is larger than that of the second end side portion, and those in which the first end side portion is made smaller.
- the boundary position between the first end side portion and the second end side portion in the flexible end side portion constituting the flexible substrate portion (flexible substrate) is rigid.
- the substrate portion rigid substrate
- the former boundary position is the end in the X-axis direction with respect to the latter boundary position.
- the present invention also includes an arrangement shifted to the near side and an arrangement shifted to the center in the X-axis direction.
- the boundary position between the first end side portion and the second end side portion in the flexible end side portion constituting the flexible substrate portion (flexible substrate) is a liquid crystal.
- the configuration is shown in which the boundary position between adjacent drivers is substantially the same, but it is also possible to dispose the boundary positions in the X-axis direction.
- the flexible rigid substrate has a configuration including a pair of rigid materials.
- the present invention includes a configuration in which three or more rigid materials are laminated.
- the liquid crystal panel is shown in which twelve drivers are arranged in parallel.
- the number of drivers mounted is appropriately changed to other than twelve (11 or less, or 13 or more). Is possible.
- Embodiments 2 to 7, 9, and 10 described above two drivers are connected to one divided flexible board (divided flexible board).
- the above (5) is applied. It is also possible to adopt a configuration in which each driver is individually connected to each divided flexible board portion when the number of drivers mounted is the same as the number of installed divided flexible board portions. In addition, when the number of drivers mounted is an integer multiple of 3 or more than the number of installed divided flexible board parts, it is possible to connect three or more drivers to each divided flexible board. It is.
- Embodiments 2 to 7, 9, and 10 described above two drivers are connected to one divided flexible board (divided flexible board), but a plurality of drivers are connected to one divided flexible board. It is also possible to adopt a configuration in which a configuration in which one driver is connected to a single flexible substrate portion is mixed.
- a portion of the flexible material that constitutes the rigid substrate portion may have a non-divided structure, and only a portion that constitutes the flexible substrate portion may have a divided structure. Is possible.
- a portion of the flexible material that constitutes the flexible substrate portion may have a non-divided structure, and a portion that constitutes the rigid substrate portion may have a divided structure.
- the rigid end side portion is smaller than the rigid center side portion or the entire length is constant.
- the rigid end side portion may be set to have a larger width dimension than the rigid center side portion.
- Embodiments 3 to 7, 9, and 10 are described as modified examples of Embodiment 2, the technical matters described in Embodiments 3 to 5, 9, and 10 are described in Embodiment 1.
- the present invention can also be applied to the above configuration. It is of course possible to combine Embodiment 11 and Embodiments 2 to 10 described above. In addition, it is possible to freely combine the embodiments.
- an inclined portion formed on the first end side portion of the end-side divided flexible substrate portion is a line (string) that connects both end positions.
- the present invention also includes an arcuate shape that is retracted (recessed) toward the inside, that is, the liquid crystal panel.
- the difference in length between the flexible substrate (flexible substrate) and the rigid substrate (rigid substrate) is approximately the same as the length of the arrangement region of the pair of hinge portions. Although a slightly smaller degree is shown, it is possible to set the difference in the length dimension to be larger than the length dimension of the arrangement region of the pair of hinge portions.
- the notebook personal computer provided with the liquid crystal display device has been illustrated.
- a foldable electronic device having a hinge portion can be used, for example, a foldable mobile phone or a foldable
- the present invention can also be applied to a game machine.
- the tablet-type notebook computer provided with the liquid crystal display device has been exemplified.
- an electronic device having no hinge part other than the tablet-type notebook computer for example, a smartphone, a television receiver, a digital
- the present invention is also applicable to signage and the like.
- the liquid crystal panel has a screen size of several inches to several tens of inches.
- the screen size is, for example, 20 inches to 90 inches, and is medium-sized or large-sized (very large).
- the present invention is also applicable to a liquid crystal display device using a liquid crystal panel classified as follows.
- the color portion of the color filter included in the liquid crystal panel is exemplified as three colors of R, G, and B. However, the color portion may be four or more colors.
- liquid crystal panel having a horizontally long rectangular shape is illustrated, but the present invention can also be applied to a liquid crystal panel having a vertically long rectangular shape or a liquid crystal panel having a square shape.
- the transmissive liquid crystal display device including the backlight device that is an external light source has been exemplified.
- the backlight device can be omitted.
- a TFT is used as a switching element of a liquid crystal display device.
- the present invention can be applied to a liquid crystal display device using a switching element other than TFT (for example, a thin film diode (TFD)).
- TFT thin film diode
- the present invention can be applied to a liquid crystal display device for monochrome display in addition to a liquid crystal display device for color display.
- the liquid crystal display device using the liquid crystal panel as the display panel has been exemplified.
- the display device using another type of display panel PDP (plasma display panel), organic EL panel, or the like).
- the present invention is applicable. In that case, the backlight device can be omitted.
- the display unit in the liquid crystal panel is arranged in the center with respect to the long side direction, but is arranged to be offset toward one end side in the short side direction.
- the display unit is arranged in the center in the short side direction, but the display unit is arranged to be shifted toward one end side in the long side direction.
- the present invention includes a liquid crystal panel in which the display unit is arranged so as to be offset toward one end in the long side direction and the short side direction.
- a liquid crystal panel in which the display unit is arranged at the center in the long side direction and the short side direction is also included in the present invention.
- the flexible rigid substrate is exemplified such that the length dimension of the flexible rigid substrate is slightly shorter than the long side dimension of the liquid crystal panel, but the specific length dimension of the flexible rigid substrate is For example, it can be changed to about half the long side dimension of the liquid crystal panel.
- SYMBOLS 10 Liquid crystal display device (display device) 11, 111, 211, 311, 411, 511, 611, 911 ... Liquid crystal panel (display panel), 11a ... CF substrate (substrate), 11b ... Array substrate (substrate), 11c ... liquid crystal layer (liquid crystal), 12, 112, 612 ... driver (drive circuit part), 13, 113 ... flexible rigid board, 18, 118 ... panel side input wiring part (signal transmission wiring), 20, 120 ... flexible material, 20a, 820a, 920a ... flexible side wiring part (wiring pattern), 21 ... rigid material, 22, 122, 222, 322, 422, 722, 822 ...
- rigid board part signal supply board
- flexible substrate flexible substrate
- Flexible end side portion end side portion
- End side part adjacent part
- Flexible central side part center side part
- 26, 726 rigid end side part (end side part)
Abstract
Description
この特許文献1に記載されたものでは、フレキシブル基板に切り込みを入れ、その切り込みによってフレキシブル基板の一部を裏面側に折り込む構成としており、それにより液晶表示装置の金属フレームのコーナー部に取り付け穴を形成するスペースを確保している。
本発明の表示装置は、画像を表示可能な表示部及び前記表示部外の非表示部を有する表示パネルと、外部の信号供給源に接続される信号供給基板と、可撓性を有しており、一端側が前記表示パネルの前記非表示部に取り付けられるのに対し、他端側が前記信号供給基板に接続されることで前記信号供給基板からの信号の供給を中継するフレキシブル基板であって、前記表示パネルと前記フレキシブル基板との並び方向を第1方向とし、前記表示パネルの板面に沿い且つ前記第1方向と直交する方向を第2方向としたとき、前記第2方向についての寸法が前記信号供給基板よりも相対的に大きなものとされるとともに、前記信号供給基板に対して前記第2方向について外側に配される部分を少なくとも含む端側部分の方が、前記端側部分に対して前記第2方向について中央側に配される中央側部分よりも前記第1方向についての寸法が相対的に大きなものとされるフレキシブル基板と、を備える。
(1)前記フレキシブル基板の前記端側部分には、前記信号供給基板に対して前記第2方向について外側に配される部分に加えてそれに隣り合う部分が含まれている。フレキシブル基板の端側部分を配線パターンの引き回し領域として利用したとき、配線パターンの引き回し領域が第2方向についてより広くなるから、さらなる高精細化及び狭額縁化に好適となる。
本発明によれば、高精細化及び狭額縁化の両立を図ることができる。
本発明の実施形態1を図1から図8によって説明する。本実施形態では、ノート型パソコン(ノート型パーソナルコンピュータ)NPに用いられる液晶表示装置(表示装置)10について例示する。なお、各図面の一部にはX軸、Y軸及びZ軸を示しており、各軸方向が各図面で示した方向となるように描かれている。また、上下方向については、図3などを基準とし、且つ同図上側を表側とするとともに同図下側を裏側とする。
本発明の実施形態2を図9から図11によって説明する。この実施形態2では、フレキシブル基板部123を分割構造としたものを示す。なお、上記した実施形態1と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態3を図12によって説明する。この実施形態3では、上記した実施形態2から端側分割フレキシブル基板部228の平面形状を変更したものを示す。なお、上記した実施形態2と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態4を図13によって説明する。この実施形態4では、上記した実施形態3から端側分割フレキシブル基板部328の平面形状をさらに変更したものを示す。なお、上記した実施形態3と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態5を図14によって説明する。この実施形態5では、上記した実施形態3から端側分割フレキシブル基板部428の平面形状をさらに変更したものを示す。なお、上記した実施形態3と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態6を図15によって説明する。この実施形態6では、上記した実施形態2から中央側分割フレキシブル基板部529を非分割構造としたものを示す。なお、上記した実施形態2と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態7を図16によって説明する。この実施形態7では、上記した実施形態2からフレキシブル基板部623における分割位置を変更したものを示す。なお、上記した実施形態2と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態8を図17によって説明する。この実施形態8では、上記した実施形態1からリジッド基板部722の形状を変更したものを示す。なお、上記した実施形態1と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態9を図18によって説明する。この実施形態9では、上記した実施形態2からフレキシブル基板部823におけるフレキシブル端側部分824の形成範囲を変更するとともに、リジッド基板部822の形状を変更したものを示す。なお、上記した実施形態2と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態10を図19または図20によって説明する。この実施形態10では、上記した実施形態2に記載したフレキシブルリジッド基板に代えて、フレキシブル基板34とリジッド基板35との2部品を用いるようにしたものを示す。なお、上記した実施形態2と同様の構造、作用及び効果について重複する説明は省略する。
本発明の実施形態11を図21によって説明する。この実施形態11では、液晶表示装置を備えるタブレット型ノートパソコンTNPを示す。なお、上記した実施形態1と同様の構造、作用及び効果について重複する説明は省略する。
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
(1)上記した各実施形態(実施形態9を除く)では、フレキシブル基板部(フレキシブル基板)を構成するフレキシブル端側部分における第1端側部分と第2端側部分とがほぼ同じ長さ寸法とされるものを示したが、第1端側部分が第2端側部分よりも長さ寸法が大きくされるものや、逆に小さくされるものも本発明に含まれる。
Claims (14)
- 画像を表示可能な表示部及び前記表示部外の非表示部を有する表示パネルと、
外部の信号供給源に接続される信号供給基板と、
可撓性を有しており、一端側が前記表示パネルの前記非表示部に取り付けられるのに対し、他端側が前記信号供給基板に接続されることで前記信号供給基板からの信号の供給を中継するフレキシブル基板であって、前記表示パネルと前記フレキシブル基板との並び方向を第1方向とし、前記表示パネルの板面に沿い且つ前記第1方向と直交する方向を第2方向としたとき、前記第2方向についての寸法が前記信号供給基板よりも相対的に大きなものとされるとともに、前記信号供給基板に対して前記第2方向について外側に配される部分を少なくとも含む端側部分の方が、前記端側部分に対して前記第2方向について中央側に配される中央側部分よりも前記第1方向についての寸法が相対的に大きなものとされるフレキシブル基板と、を備える表示装置。 - 前記フレキシブル基板の前記端側部分には、前記信号供給基板に対して前記第2方向について外側に配される部分に加えてそれに隣り合う部分が含まれている請求項1記載の表示装置。
- 前記フレキシブル基板は、前記端側部分のうち前記信号供給基板に対して前記第2方向について外側に配される部分に隣り合う部分が前記信号供給基板に対して接続されるとともに、前記信号供給基板に対して前記第2方向について外側に配される部分における前記第1方向についての寸法が前記第2方向について端側から中央側に向けて一定とされるよう、または増加するよう形成されている請求項2記載の表示装置。
- 前記信号供給基板は、前記フレキシブル基板の前記端側部分に接続される端側部分の方が、前記フレキシブル基板の前記中央側部分に接続される中央側部分よりも前記第1方向についての寸法が相対的に小さなものとされる請求項1から請求項3のいずれか1項に記載の表示装置。
- 前記信号供給基板における前記端側部分及び前記中央側部分は、前記フレキシブル基板側とは反対側の端部が互いに面一状をなしている請求項4記載の表示装置。
- 前記フレキシブル基板における前記端側部分及び前記中央側部分は、前記第1方向についての前記表示パネルに対する取付位置が同一とされる請求項1から請求項5のいずれか1項に記載の表示装置。
- 前記フレキシブル基板は、前記端側部分と前記中央側部分とが少なくとも分割されていて、前記端側部分からなる端側分割フレキシブル基板と、前記中央側部分からなる中央側分割フレキシブル基板とを少なくとも有してなる請求項1から請求項6のいずれか1項に記載の表示装置。
- 前記中央側分割フレキシブル基板は、複数に分割されていて、複数の中央側分割フレキシブル基板個片からなる請求項7記載の表示装置。
- 前記信号供給基板は、前記フレキシブル基板の前記端側部分に接続される端側部分の方が、前記フレキシブル基板の前記中央側部分に接続される中央側部分よりも前記第1方向についての寸法が相対的に小さなものとされており、
前記フレキシブル基板は、前記端側分割フレキシブル基板が前記信号供給基板の前記端側部分に接続されるのに対し、前記中央側分割フレキシブル基板が前記信号供給基板の前記中央側部分に接続されるよう構成されている請求項7または請求項8記載の表示装置。 - 前記表示パネルの前記非表示部において前記表示部と前記フレキシブル基板との間に位置する形で取り付けられ、前記信号供給基板及び前記フレキシブル基板を介して供給される信号を処理して生成した出力信号を前記表示部に出力することで前記表示パネルを駆動する駆動回路部を備えており、
前記駆動回路部は、前記非表示部において前記第2方向に沿って複数並んで配されるとともに、前記端側分割フレキシブル基板に接続される端側用駆動回路部と、前記中央側分割フレキシブル基板に接続される中央側用駆動回路部とを少なくとも有してなる請求項7から請求項9のいずれか1項に記載の表示装置。 - 前記フレキシブル基板のうち、前記第2方向について前記信号供給基板に対して外側に配されて前記端側部分の少なくとも一部を構成する部分は、前記他端側の端部が傾斜状に形成されている請求項1から請求項10のいずれか1項に記載の表示装置。
- 前記信号供給基板と前記フレキシブル基板とが一体化されてなるフレキシブルリジッド基板を備えており、
前記フレキシブルリジッド基板は、可撓性を有するフレキシブル材の一部を相対的に硬質な一対のリジッド材により挟み込んだ構成とされるとともに、前記一対のリジッド材とそれらに挟み込まれた前記フレキシブル材の一部とにより構成されるリジッド基板部と、前記フレキシブル材の残りの部分により構成されるフレキシブル基板部とからなるものとされており、
前記フレキシブル基板部は、前記第2方向についての寸法が前記リジッド基板部よりも相対的に大きなものとされるとともに、前記リジッド基板部に対して前記第2方向について外側に配される部分を少なくとも含む端側部分の方が、前記端側部分に対して前記第2方向について中央側に配される中央側部分よりも前記第1方向についての寸法が相対的に大きなものとされる請求項1から請求項11のいずれか1項に記載の表示装置。 - 前記表示パネルの前記非表示部において前記表示部と前記フレキシブル基板との間に位置する形で設けられ、前記信号供給基板及び前記フレキシブル基板を介して供給される信号を前記表示部に伝送する信号伝送配線を備えている請求項1から請求項12のいずれか1項に記載の表示装置。
- 前記表示パネルは、一対の基板間に液晶を封入してなる液晶パネルとされる請求項1から請求項13のいずれか1項に記載の表示装置。
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US14/440,638 US9642257B2 (en) | 2012-11-12 | 2013-11-05 | Display device |
JP2014545699A JP6033880B2 (ja) | 2012-11-12 | 2013-11-05 | 表示装置 |
CN201380069937.8A CN104919512B (zh) | 2012-11-12 | 2013-11-05 | 显示装置 |
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US9642257B2 (en) | 2017-05-02 |
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CN104919512A (zh) | 2015-09-16 |
US20150319862A1 (en) | 2015-11-05 |
CN104919512B (zh) | 2017-07-11 |
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