WO2012102327A1 - 表示装置 - Google Patents
表示装置 Download PDFInfo
- Publication number
- WO2012102327A1 WO2012102327A1 PCT/JP2012/051627 JP2012051627W WO2012102327A1 WO 2012102327 A1 WO2012102327 A1 WO 2012102327A1 JP 2012051627 W JP2012051627 W JP 2012051627W WO 2012102327 A1 WO2012102327 A1 WO 2012102327A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- main surface
- display
- region
- vibrating body
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
Definitions
- the present invention relates to a display device used for various purposes such as a mobile phone, a digital camera, a portable game machine, or a portable information terminal.
- This display device includes a touch panel, a display panel positioned on the back surface of the touch panel and having an upper substrate and a lower substrate facing each other, and a vibrating body such as a piezoelectric element positioned between the touch panel and the upper substrate.
- a vibrating body such as a piezoelectric element positioned between the touch panel and the upper substrate.
- the vibrating body when the vibrating body is positioned between the touch panel and the upper substrate of the display panel as in the above display device, the touch panel and the display are displayed depending on the thickness of the vibrating body when the touch panel and the display panel are bonded together.
- the distance from the panel tends to be large.
- there is a problem that the thickness of the entire display device is increased.
- the present invention has been made in view of the above problems, and an object thereof is to reduce the thickness of the display device.
- the display device of the present invention has a display area and an input area on the outer main surface, and a first board provided with an input unit for detecting an input position in the input area, and the first board.
- a second substrate disposed with its inner principal surfaces facing each other, and a display means disposed between the first substrate and the second substrate for displaying image information in the display area;
- a vibrating body provided on the second substrate for vibrating the input region of the first substrate, and a vibration transmitting member for transmitting the vibration of the vibrating body from the second substrate to the first substrate;
- the second substrate has a non-facing area on the inner main surface that is opposed to the inner main surface of the first substrate and a facing region that faces the inner main surface of the first substrate. And the vibrating body is located in the non-facing region. Vignetting wherein the are.
- the vibrating body since the vibrating body is located on the first main surface of the second substrate and in the non-opposing region, the vibrating body does not overlap the first substrate in plan view. Thereby, it is suppressed that the thickness of a display apparatus becomes thick with the thickness of a vibrating body, and thickness reduction can be achieved.
- FIG. 2 is a cross-sectional view taken along the line II of FIG. It is a top view which shows a 2nd board
- the display device 1 includes a display panel 2, an input unit 3 located on the display panel 2, a vibrating body 4 provided on the display panel 2, and a display panel. 2, a light source device 5 that emits light toward 2, a first polarizing plate 6 disposed on the input unit 3, and a second polarizing plate 7 disposed between the display panel 2 and the light source device 5. ing.
- the display panel 2 which is a liquid crystal display means includes a first substrate 21, a second substrate 22 disposed opposite to the first substrate 21, and a liquid crystal layer 23 positioned between the first substrate 21 and the second substrate 22.
- a joining member 24 as a vibration transmitting member for joining the first substrate 21 and the second substrate 22 so as to surround the liquid crystal layer 23 is provided.
- Display panel 2 in the present embodiment is a liquid crystal display panel for displaying image information in the display area E D by using the liquid crystal layer 23. That is, the display panel 2 in the present embodiment has the light source device 5 for each pixel P by display means that generates an electric field between the signal electrode 228 and the common electrode 226 to control the direction of liquid crystal molecules in the liquid crystal layer 23. adjust the transmittance of light from, and displays the image on the display area E D.
- the display panel 2 controls the direction of liquid crystal molecules in the liquid crystal layer 23 by generating an electric field between the signal electrode 228 and the common electrode 226 provided on one of the pair of substrates.
- the so-called lateral electric field method is employed.
- the horizontal electric field method is adopted, but the present invention is not limited to this, and any method may be used.
- a vertical electric field method may be adopted.
- the display means of the display panel 2 of the present invention is not limited to the one using the liquid crystal layer 23.
- a display unit using a light emitting layer such as plasma or electroluminescence may be used.
- the first substrate 21 has a first main surface 21a (outer main surface) located on the input unit 3 side and a second main surface 21b (inner main surface) located on the opposite side of the first main surface 21a. is doing.
- the first main surface 21a and the second main surface 21b of the first substrate 21, the display area E D composed of a plurality of pixels P, the non-display area E N positioned outside the display area E D, the display area E on D Has an input area E I located at.
- Examples of the material of the first substrate 21 include a material having translucency, such as glass and plastic.
- a light shielding film 211 On the second main surface 21b of the first substrate 21, a light shielding film 211, a color filter 212, and a first alignment film 213 are provided.
- the light shielding film 211 is provided on the second main surface 21b of the first substrate 21 in a lattice shape, for example.
- the light shielding film 211 is provided along the outer periphery of each pixel P.
- the material of the light shielding film 211 include a resin to which a dye or pigment having a high light shielding property (for example, black) is added, or a metal such as chromium.
- the light shielding film 211 of the present embodiment is formed in a lattice shape, the present invention is not limited to this.
- the color filter 212 has a function of transmitting only a specific wavelength of visible light.
- the color filter 212 is provided on the second main surface 21b of the first substrate 21 and is located for each pixel P.
- Each color filter 212 has one of red (R), green (G), and blue (B). Further, the color filter 212 is not limited to the above color, and may have a color such as yellow (Y) or white (W). Examples of the material of the color filter 212 include a resin to which a dye or a pigment is added.
- the first alignment film 213 has a function of controlling the alignment of the liquid crystal molecules of the liquid crystal layer 23.
- the first alignment film 213 is provided on the light shielding film 211 and the color filter 212.
- Examples of the material of the first alignment film 213 include a resin such as a polyimide resin.
- the light shielding film 211 and the color filter 212 are provided on the second main surface 21 b of the first substrate 21.
- the present invention is not limited to this. That is, the light shielding film 211 and the color filter 212 may be provided on the second substrate 22.
- the second substrate 22 includes a first main surface 22a as an inner main surface facing the second main surface 21b of the first substrate 21, and a second main surface as an outer main surface located on the opposite side of the first main surface 22a. And a surface 22b.
- the material of the second substrate 22 is the same as that of the first substrate 21.
- the counter area E O is a region including a display region opposed E FD facing the display area E D of the first substrate 21.
- a plurality of gate wirings 221, a first insulating film 222 provided on the first main surface 22a so as to cover the plurality of gate wirings 221, and a plurality of gates A plurality of source wirings 223 provided on the first insulating film 222 so as to intersect the wirings 221, a thin film transistor 224, and a second insulation provided on the first insulating film 222 so as to cover the plurality of source wirings 223.
- Eva IC 2211 is arranged.
- the gate wiring 221 has a function of applying a voltage supplied from the driver IC 2211 to the thin film transistor 224. As shown in FIG. 5, the gate wiring 221 extends in the X direction on the first main surface 22 a of the second substrate 22. The plurality of gate wirings 221 are arranged along the Y direction.
- the gate wiring 221 is formed of a conductive material, for example, aluminum, molybdenum, titanium, neodymium, chromium, copper, or an alloy containing these.
- the following method can be given as a method for forming the gate wiring 221.
- a metal material is formed as a film on the first main surface 22a of the second substrate 22 by sputtering, vapor deposition, or chemical vapor deposition.
- a photosensitive resin is applied to the surface of the metal film, and a pattern having a desired shape is formed on the photosensitive resin by performing exposure processing and development processing on the applied photosensitive resin.
- the metal film is etched with a chemical solution to make the metal film into a desired shape, and then the applied photosensitive resin is peeled off.
- the gate wiring 221 can be formed by forming and patterning a metal material.
- the first insulating film 222 has a function of electrically insulating the gate wiring 221 and the source wiring 223.
- the first insulating film 222 is formed of an insulating material, for example, silicon nitride, silicon oxide, or the like.
- the source wiring 223 has a function of applying the signal voltage supplied from the driver IC 2211 to the signal electrode 228 via the thin film transistor 224. As shown in FIG. 5, the source wiring 223 extends in the Y direction. The plurality of source lines 223 are arranged in the X direction on the first insulating film 222. Although the source wiring 223 of this embodiment is formed in a straight line, it may be bent. The source wiring 223 may be formed using the same material as the gate wiring 221. The source wiring 223 can be formed by a method similar to that for the gate wiring 221.
- the thin film transistor 224 includes a semiconductor layer such as amorphous silicon or polysilicon, a source electrode connected to the source wiring 223, and a drain electrode provided on the semiconductor layer.
- writing or non-writing of an image signal to the signal electrode 228 is performed by changing the resistance of the semiconductor layer between the source electrode and the drain electrode in accordance with the voltage applied to the semiconductor layer through the gate wiring 221. Be controlled.
- the second insulating film 225 has a function of electrically insulating the source wiring 223 and the common electrode 226.
- the material of the second insulating film 225 is formed of an insulating material such as a resin.
- the third insulating film 227 has a function of electrically insulating the signal electrode 228 and the common electrode 226 from each other.
- the third insulating film 227 may be formed of the same material as the first insulating film 222.
- the common electrode 226 has a function of generating an electric field with the signal electrode 228 by a voltage applied from the driver IC 2211.
- the common electrode 226 is provided on the second insulating film 225.
- the common electrode 226 is formed of a material having translucency and conductivity. It is formed of tin, zinc oxide, or a conductive polymer.
- the signal electrode 228 has a function of generating an electric field with the common electrode 226 by a voltage applied from the driver IC 2211.
- the plurality of signal electrodes 228 are provided on the third insulating film 227.
- the signal electrode 228 of the present embodiment is formed in a rectangular shape, the signal electrode 228 may be formed by bending.
- the signal electrode 228 may be formed of the same material as the common electrode 226.
- the common electrode 226, the third insulating film 227, and the signal electrode 228 are provided in this order on the second main surface of the second substrate 22, but the present invention is not limited to this. That is, the common electrode 226 may be formed on the signal electrode 228 with the third insulating film 227 interposed therebetween, and the signal electrode 228, the third insulating film 227, and the common electrode 226 may be provided in this order.
- the display wiring 229 is a wiring to which a voltage for driving the display panel 2 is applied.
- the plurality of display wirings 229 are provided on the first main surface 22 a of the second substrate 22.
- the display wiring 229 is connected to the gate wiring 221, the source wiring 223, or the common electrode 226, for example.
- the material of the display wiring 229 is formed of a conductive material such as aluminum, molybdenum, titanium, neodymium, chromium, copper, silver, gold, or an alloy containing these.
- a method for forming the display wiring 229 a method similar to that for the gate wiring 221 can be given.
- the driver IC 2211 has a function of controlling driving of the gate wiring 221 or the source wiring 223.
- the driver IC2211 is located in the non-opposed region E NO.
- a display wiring 229 is connected to the driver IC 2211.
- the second alignment film 2210 has a function of controlling the alignment of the liquid crystal molecules of the liquid crystal layer 23.
- the second alignment film 2210 is provided on the signal electrode 228 and the third insulating film 227.
- the input unit 3 is provided on the first main surface 21 a of the first substrate 21.
- the input unit 3 is provided on the first main surface 21 a of the first substrate 21 via the seal member T.
- Sealing member T is provided so as to surround the display region E D of the first main surface 21a of the first substrate 21.
- Examples of the material of the seal member T include a resin having adhesiveness.
- the vibrating body 4 is provided not on the first main surface 21 a of the first substrate 21 but on the first main surface 22 a of the second substrate 22, the formation region of the seal member T is formed by the vibrating body 4. Limitation is suppressed. Thereby, the joint strength between the input unit 3 and the display panel 2 can be improved, and the vibration of the vibrating body 4 can be easily transmitted to the input area E I.
- the input unit 3 in this embodiment employs a capacitance method as a detection method.
- the electrostatic capacitance system is employ
- a resistive film method, a surface acoustic wave method, an infrared method, or an electromagnetic induction method may be employed.
- the input unit 3 includes an input unit substrate 31, a plurality of detection electrodes 32 arranged on the input unit substrate 31 along the X direction and the Y direction, and a detection electrode 32.
- a plurality of detection wirings 33 connected to each other and an insulator 34 located at a portion where the detection electrodes 32 intersect each other are provided.
- the input unit substrate 31 is made of a material having translucency, for example, glass, quartz, crystal, sapphire, or plastic.
- the detection electrode 32 is located on the input unit substrate 31 corresponding to the input region E I of the first substrate 21.
- the detection electrodes 32 configured by connecting a plurality of rhombus electrodes in the Y direction are arranged in the X direction.
- the detection electrodes 32 configured by connecting a plurality of rhombus electrodes in the X direction are arranged in the Y direction.
- the detection electrodes 32 arranged in the X direction intersect with the detection electrodes 32 arranged in the Y direction, and an insulator 34 is located in the intersecting region.
- the detection electrode 32 may be formed of the same material as the common electrode 226.
- the detection wiring 33 has a function of applying a voltage supplied from an input unit driver (not shown) to the detection electrode 32.
- Detection wire 33 is provided on the input unit substrate 31 corresponding to the non-display area E N of the first substrate 21.
- Examples of the material of the detection wiring 33 include conductive materials such as ITO, tin oxide, aluminum, aluminum alloy, copper, copper alloy, gold, gold alloy, silver, or silver alloy.
- the insulator 34 has a function of electrically insulating the intersecting detection electrodes 32 from each other.
- the insulator 34 is provided on the input unit substrate 31 so as to cover a part of the detection electrode 32.
- Examples of the material of the insulator 34 include those having translucency and insulating properties, such as acrylic resin.
- the adjacent detection electrodes 32 are arranged close to each other, stray capacitance is generated between the adjacent detection electrodes 32. That is, in the input unit 3, a plurality of stray capacitance elements are arranged in a matrix. When a voltage is applied to the plurality of detection electrodes 32, charges are accumulated in each stray capacitance element. In this state, when the user is touching the input unit is a conductor such as a finger and input pen directly or indirectly to the input region E I of the first substrate 21, exists in the input means in contact with or proximity area The stray capacitance of the stray capacitance element of the input unit 3 to be changed changes.
- the amount of charge accumulated in the stray capacitance element present at the contact portion also changes.
- the voltages of the plurality of detection electrodes 32 present at the contact portion also change.
- the voltage change of the detection electrode 32 is read by an input unit driver (not shown) as detection means. If the voltage change read by the input unit driver exceeds a predetermined value, the input unit driver recognizes the detection electrode 32 that has changed the voltage exceeding the predetermined value, and recognizes a plurality of recognized detections. The intersecting portion of the working electrode 32 is recognized as the input position.
- Vibrator 4 has a function of vibrating the input region E I in response to the pressing by the input means such as a user's finger.
- the vibrating body 4 is provided on the first main surface 22a of the second substrate 22 of the display panel 2, as shown in FIGS.
- the vibration member 4 is located in the non-opposed region E NO of the first main surface 22a.
- the shape of the vibrating body 4 is, for example, a rectangular shape in plan view. Further, the vibrating body 4 in the present embodiment is provided so that the long side of the vibrating body 4 is along the short side of the second substrate 22.
- the vibrating member 4 is located in the non-opposed region E NO along the short side of the first substrate 21 of the non-facing region E NO.
- the vibration member 4 is provided in the non-opposed region E NO along the short side of the first substrate 21, it is not limited thereto.
- the vibrating member 4 may be provided in the non-opposed region E NO along the long sides of the first substrate 21.
- two vibrating bodies 4 are provided, but the number of vibrating bodies 4 is not particularly limited to this.
- An electrode terminal 41 is provided on the surface of the vibrating body 4 facing the first main surface 22a.
- a vibrating body wiring 42 is connected to the electrode terminal 41 via a conductive bonding material.
- the material for the conductive bonding material include metals such as aluminum, gold, tin, silver, palladium, copper, and nickel, alloys containing these metals, and resins containing metal fine particles.
- the vibrating body wiring 42 has a function of applying a voltage supplied from a power source to the vibrating body 4.
- the vibrating body wiring 42 is provided on the first main surface 22a of the second substrate 22 and is located in a region excluding the display facing region EFD .
- the material of the vibrator wiring 42 is the same as that of the display wiring 229.
- the vibrating body 4 since the vibrating body 4 is located on the first main surface 22 a of the second substrate 22 and in the non-opposing region ENO , the vibrating body 4 overlaps the first substrate 21 in plan view. Don't be. Thereby, it is suppressed that the thickness of the display apparatus 1 becomes thick with the thickness of the vibrating body 4, and the display apparatus 1 can be reduced in thickness.
- the entire vibrating body 4 is located in the non-facing region ENO .
- the outer region of the entire display device 1 can be made smaller than when a part of the vibrating body 4 protrudes outside the edge of the second substrate 22.
- the vibrator wiring 42 and the display wiring 229 are provided on the same plane (first main surface 22a) of the second substrate 22, the vibration wiring 42 and the display wiring 229 are the same.
- the vibrator wiring 42 and the display wiring 229 can be formed by the same film forming process and the same patterning process. That is, since the vibrating body wiring 42 and the display wiring 229 can be simultaneously formed in the same process, the manufacturing process can be simplified and the productivity can be improved.
- the voltage applied to vibrate the vibrating body 4 is larger than the voltage applied from the driver IC 2211 to the display wiring 229. Therefore, the electromagnetic wave generated by the voltage applied to the vibrating body 4 may affect the signal transmitted from the driver IC 2211 to the display wiring 229 as noise and may affect the image display.
- the vibrating body 4 and the vibrating body wiring 42 are located in the non-facing region E NO along the short side of the first substrate 21, and the driver IC 2211 is connected to the first substrate 21. It is located in the non-opposed region E NO along the long sides.
- the vibrating body 4 and the vibrating body wiring 42 can be separated from the driver IC 2211, and the influence of the voltage applied to the vibrating body 4 on the driver IC 2211 can be suppressed.
- the vibrating body 4 may be brought into contact with the first substrate 21. Thereby, the vibration of the vibrating body 4 located on the first main surface 22 a of the second substrate 22 is easily transmitted to the first substrate 21.
- the vibrating body 4 in the present embodiment utilizes a so-called piezoelectric effect that converts a force applied to the vibrating body 4 into a voltage and converts a voltage applied via the electrode terminal 41 into a force (vibration). It is a piezoelectric element.
- the vibrating body 4 in the present embodiment is a bimorph type piezoelectric element configured by bonding a plurality of piezoelectric bodies, but is not limited thereto, and may be a monomorph type piezoelectric element. In the bimorph type piezoelectric element, by applying a differential voltage to each of the plurality of piezoelectric bodies, the expansion and contraction directions of the plurality of piezoelectric bodies are reversed. This utilizes the fact that the element 4 vibrates.
- the vibration body 4 has been described as an example realized by a piezoelectric element.
- the present invention is not limited thereto, and may be realized by an electromagnetic vibration body, a motor, or the like.
- the liquid crystal layer 23 is provided between the first substrate 21 and the second substrate 22.
- the liquid crystal layer 23 includes liquid crystal molecules such as nematic liquid crystal or cholesteric liquid crystal.
- the bonding member 24 has a function of bonding the first substrate 21 and the second substrate 22 together. Bonding member 24 is provided between the first substrate 21 so as to surround the display region E D and the second substrate 22.
- the joining member 24 is formed of an adhesive resin or the like.
- the joining member 24 of this embodiment has a function as a vibration transmitting member for transmitting the vibration of the vibrating body 4 to the input region E I.
- the joining member 24 is used as a vibration transmission member, but the present invention is not limited to this.
- a separate vibration transmission member may be provided between the first substrate 21 and the second substrate 22 so as to be in contact with both. In this case, if a material having higher hardness than the material of the joining member 24 is used for the vibration transmitting member, the vibration of the vibrating body 4 can be more easily transmitted to the input region E I.
- the light source device 5 has a function of emitting light toward the display panel 2.
- the light source device 5 includes a light source 51 and a light guide plate 52.
- a point light source such as an LED is employed as the light source 51, but a linear light source such as a cold cathode tube may be employed.
- the first polarizing plate 6 has a function of selectively transmitting light in a predetermined vibration direction.
- the first polarizing plate 6 is provided on the input unit 3 via an adhesive 61.
- the first polarizing plate 6 is located on the input unit 3, but is not limited thereto. For example, it may be provided between the first main surface 21 a of the first substrate 21 and the input unit 3.
- the second polarizing plate 7 has a function of selectively transmitting light in a predetermined vibration direction.
- the second polarizing plate 7 is located on the second main surface 22 b of the second substrate 22.
- FIGSecond Embodiment 9 to 11 are diagrams showing the main part of the display device 1A according to the second embodiment.
- the display device 1A is different from the display device 1 in that the vibrating body 4 is covered with a protective member H.
- the protective member H has a function of protecting the vibrating body 4 from external impact or dust.
- the protective member H covers at least a part of the vibrating body 4.
- the material of the protective member H is a resin such as an epoxy resin.
- the protective member H is in contact with the first substrate 21.
- the first substrate 21 is in contact with the end surface located between the first main surface 21a and the second main surface 21b.
- the protection member H since the protection member H is in contact with the end surface of the first substrate 21, it is easy to transmit the vibration of the vibrating body 4 located on the second main surface 22 a of the second substrate 22 to the input unit 3. .
- the protection member H is in contact with the second main surface 21 b of the first substrate 21. Since the protective member H is in contact with the second main surface 21b instead of the first main surface 21a of the first substrate 21, the protective member H is positioned between the first substrate 21 and the second substrate 22.
- the protective member H can suppress an increase in the thickness of the display device 1A.
- the protective member H is bonded to the first main surface 21 a, the second main surface 21 b, and the end surface of the first substrate 21. This further easily transmitted to the input region E I vibration of the vibrating body 4 located on the second major surface 22a of the second substrate 22.
- FIG. 12 is a diagram illustrating an example display device 1B in the third embodiment.
- the display device 1B is different from the display device 1 in the following points.
- the non-facing region ENO is provided along one side of the first substrate 21 instead of the three sides of the first substrate 21.
- the vibration body 4, the vibration-body line 42 and driver IC2211 is provided on the non-facing region E NO along one side of the first substrate 21.
- the vibrating body 4 In the display device 1 ⁇ / b> B, the vibrating body 4, the vibrating body wiring 42, and the driver IC 2211 are located in the same non-opposing region E NO along one side of the first substrate 21. it is not necessary to separately provide another non-facing regions E NO to provide the use wiring 42 can be suppressed frame region of the display device 1B is increased.
- FIG. 13 is a diagram illustrating a display device 1C according to the fourth embodiment.
- the display device 1 ⁇ / b> C differs from the display device 1 in that the input unit 3 does not have the input unit substrate 31.
- the detection electrode 32 of the input unit 3 is provided in contact with the first main surface 21 a of the first substrate 21. Thereby, the space provided between the input part substrate 31 of the input part 3 and the first main surface 21a of the first substrate 21 can be eliminated, and the thickness of the display device can be reduced.
- the air layer existing in this space is eliminated by eliminating the space, the boundary between the input unit substrate 31 and the air layer when external light such as sunlight or illumination light enters the display panel 2.
- the reflection of light at the boundary between the air layer and the first substrate 21 is eliminated, the occurrence of reflection can be suppressed, and the display quality can be improved.
- the vibration of the vibrating body 4 can be easily transmitted to the user.
- Display device 2 Display panel 21 First substrate 21a First main surface (outer main surface) P pixel E D display area E N non-display area E I input area 21b Second main surface (inner main surface) 211 Light-shielding film 212 Color filter 213 First alignment film 22 Second substrate 22a First main surface (inner main surface) EO counter area E FD display counter area E NO non-opposed area 22b Second main surface (outer main surface) 221 Gate wiring 222 First insulating film 223 Source wiring 224 Thin film transistor 225 Second insulating film 226 Common electrode (display electrode) 227 Third insulating film 228 Signal electrode (display electrode) 229 Display wiring 2210 Second alignment film 2211 Driver IC 23 Liquid crystal layer 24 Bonding member (vibration transmission member) 3 Input Unit 31 Input Unit Board 32 Detection Electrode 33 Detection Wiring 34 Insulator T Seal Member 4 Vibrating Body 41 Electrode Terminal 42 Vibrating Body Wiring 5 Light Source Device 51 Light Source 52 Light
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Abstract
Description
本発明の第1の実施形態における表示装置について、図1~図8を参照しながら説明する。
図9~図11は、第2の実施形態における表示装置1Aの要部を示す図である。
図12は、第3の実施形態における例の表示装置1Bを示す図である。
図13は、第4の実施形態における表示装置1Cを示す図である。
2 表示パネル
21 第1基板
21a 第1主面(外側主面)
P 画素
ED 表示領域
EN 非表示領域
EI 入力領域
21b 第2主面(内側主面)
211 遮光膜
212 カラーフィルタ
213 第1配向膜
22 第2基板
22a 第1主面(内側主面)
EO 対向領域
EFD 表示対向領域
ENO 非対向領域
22b 第2主面(外側主面)
221 ゲート配線
222 第1絶縁膜
223 ソース配線
224 薄膜トランジスタ
225 第2絶縁膜
226 共通電極(表示用電極)
227 第3絶縁膜
228 信号電極(表示用電極)
229 表示用配線
2210 第2配向膜
2211 ドライバIC
23 液晶層
24 接合部材(振動伝達部材)
3 入力部
31 入力部用基板
32 検出用電極
33 検出用配線
34 絶縁体
T シール部材
4 振動体
41 電極端子
42 振動体用配線
5 光源装置
51 光源
52 導光板
6 第1偏光板
61 粘着剤
7 第2偏光板
H 保護部材
Claims (8)
- 外側主面に表示領域および入力領域を有しており、該入力領域における入力位置を検出するための入力部が設けられている第1基板と、
該第1基板に対して互いに内側主面同士を対向させて配置された第2基板と、
前記第1基板および前記第2基板の間に配置された、前記表示領域に像情報を表示するための表示手段と、
前記第2基板に設けられた、前記第1基板の前記入力領域を振動させるための振動体と、
該振動体の振動を前記第2基板から前記第1基板に伝達するための振動伝達部材とを備える表示装置であって、
前記第2基板は、前記内側主面に、前記第1基板の前記内側主面と対向する対向領域と、前記第1基板の前記内側主面とは対向しない非対向領域とを有しており、
前記振動体は、前記非対向領域に設けられていることを特徴とする表示装置。 - 前記振動体は、全体が前記非対向領域内に位置している請求項1に記載の表示装置。
- 前記第2基板の前記内側主面に、前記表示手段の表示用電極、該表示用電極に電気的に接続された表示用配線、および前記振動体に電気的に接続された振動体用配線が設けられており、
該振動体用配線は、前記表示用配線と同一材料で形成されている請求項1または2に記載の表示装置。 - 前記振動体が前記第1基板の端面に接触している請求項1~3のいずれかに記載の表示装置。
- 前記第2基板の前記内側主面に、前記振動体を覆うように保護部材が設けられており、
前記保護部材は前記1基板に接触している請求項1~4のいずれかに記載の表示装置。 - 前記第2基板の前記非対向領域は、前記第1基板の一辺に沿って位置しており、
前記第2基板の前記非対向領域には、前記表示用配線に接続されたドライバICが前記振動体とともに設けられている請求項3に記載の表示装置。 - 前記入力部は、該入力部における入力位置で生じた容量の変化を検出する検出手段を有するものである請求項1~6のいずれかに記載の表示装置。
- 前記入力部は、前記入力手段との間で容量の変化を生じる検出用電極と、前記容量の変化を検出手段に伝えるための検出用配線とを備えており、
前記検出用電極は、前記第1基板の前記外側主面上または前記内側主面上のうち前記入力領域に設けられ、前記検出用配線は、前記第1基板の前記外側主面上または前記内側主面上のうち前記表示領域および前記入力領域を除いた領域に設けられている請求項7に記載の表示装置。
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JP2012554829A JPWO2012102327A1 (ja) | 2011-01-28 | 2012-01-26 | 表示装置 |
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JP2014164430A (ja) * | 2013-02-22 | 2014-09-08 | Kyocera Corp | 振動装置、電子機器、および携帯端末 |
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US11070899B2 (en) * | 2019-01-21 | 2021-07-20 | Innolux Corporation | Electronic device including sound broadcasting element |
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JPH09167541A (ja) * | 1995-12-18 | 1997-06-24 | Idec Izumi Corp | 薄型スイッチおよびスイッチ付表示パネル |
JP2003271074A (ja) * | 2002-03-13 | 2003-09-25 | Citizen Watch Co Ltd | 携帯用電子機器における表示装置 |
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JP3880888B2 (ja) * | 2002-06-18 | 2007-02-14 | Smk株式会社 | タブレット装置 |
JP4968515B2 (ja) | 2006-11-15 | 2012-07-04 | ソニー株式会社 | 基板支持振動構造、触覚機能付きの入力装置及び電子機器 |
JP2011175506A (ja) * | 2010-02-25 | 2011-09-08 | Sony Corp | 入力装置および電子機器 |
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JPH09167541A (ja) * | 1995-12-18 | 1997-06-24 | Idec Izumi Corp | 薄型スイッチおよびスイッチ付表示パネル |
JP2003271074A (ja) * | 2002-03-13 | 2003-09-25 | Citizen Watch Co Ltd | 携帯用電子機器における表示装置 |
JP2005266890A (ja) * | 2004-03-16 | 2005-09-29 | Seiko Epson Corp | タッチパネル装置、及びタッチパネル装置の制御方法、並びにpos端末装置 |
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