WO2000007170A1 - Dispositif electro-optique, son procede de fabrication, affichage a projection et dispositif electronique - Google Patents
Dispositif electro-optique, son procede de fabrication, affichage a projection et dispositif electronique Download PDFInfo
- Publication number
- WO2000007170A1 WO2000007170A1 PCT/JP1999/004003 JP9904003W WO0007170A1 WO 2000007170 A1 WO2000007170 A1 WO 2000007170A1 JP 9904003 W JP9904003 W JP 9904003W WO 0007170 A1 WO0007170 A1 WO 0007170A1
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- WIPO (PCT)
- Prior art keywords
- electro
- optical device
- wiring
- conductive layer
- seal portion
- Prior art date
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Classifications
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- 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
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
Definitions
- Electro-optical device method for manufacturing electro-optical device, projection display device, and electronic apparatus [Technical field]
- the present invention belongs to the technical field of an electro-optical device used as a display unit of a television, a video camera, a portable information terminal or the like, or an optical modulator such as a projection display device. More specifically, the present invention belongs to the technical field of an electro-optical device having a structure in which one or a plurality of conductive layers are laminated for wiring between a seal portion surrounding an electro-optical material such as a liquid crystal and a substrate.
- a general electro-optical device has a configuration in which an electro-optical material such as a liquid crystal is sandwiched in a region surrounded by a seal portion between substrates.
- an electro-optical material such as a liquid crystal
- the seal portion in order to keep the substrate interval at a predetermined interval, substantially spherical or fin-like particles made of beads, glass fibers, or the like are mixed.
- a pixel electrode for driving the electro-optical material is provided on the inner surface of the substrate, and the pixel electrode is connected to a terminal provided in a region outside the seal portion (ie, a region outside the seal) via a wiring. Is done. That is, in such a conventional electro-optical device, the conductive layer between the seal portion and the substrate is only one of the wiring layers.
- a light-shielding layer made of metal or the like is provided in order to prevent light from entering the semiconductor layer because image quality defects occur due to light leakage current. It is necessary to provide between the substrate and the seal portion. As a result, the wiring, insulating layer, and light-shielding layer formed on the substrate are sequentially stacked, resulting in a screen.
- a wiring layer There are two conductive layers between the wiring section and the substrate: a wiring layer and a light-shielding layer.
- each pixel has a semiconductor switching element, and a driving circuit for driving these switching elements is provided in an area inside the seal portion (that is, an area inside the seal), and the electro-optical device controls this by a control circuit.
- a total of three conductive layers of one or two wiring layers and one light-shielding layer may be laminated between the seal portion and the substrate via an interlayer insulating film.
- various wirings for example, a scanning line, a de-emphasis line
- capacitance lines may be formed using one or more conductive layers between the seal portion and the substrate.
- the present invention has been made in view of the above-described problem, and it is an object of the present invention to prevent a wiring formed on one substrate holding an electro-optical material from becoming defective due to a spacer member.
- An object of the present invention is to provide a possible electro-optical device, a method of manufacturing the electro-optical device, and a projection display device and an electronic apparatus including the electro-optical device.
- the present invention provides an electro-optical material sandwiched in a region surrounded by a seal portion between a pair of substrates, and a conductive layer laminated on one of the pair of substrates.
- An electro-optical device wherein the seal portion includes a portion including a spacer member and a portion not including the spacer member, wherein the seal portion includes a portion including the spacer member and a portion not including the spacer member.
- the wire is disposed in a portion of the seal portion that does not include the spacer member.
- the sealing portion made of a sealing material such as a photocurable or thermosetting resin adhesive is, for example, a portion including a fiber-shaped or bead-shaped spacer member having a predetermined particle size. It is divided into parts that do not include.
- a wiring made of a conductive layer is laminated in a region facing a portion not including the spacer member on the substrate. That is, since there is no spacer member at the seal portion where the wiring made of the conductive layer intersects, no local pressure is applied to the wiring even when the substrate is pressed. Therefore, it is possible to prevent the disconnection of the wiring due to the spacer member.
- the spacing between the substrates can be accurately controlled by the spacer member included in the seal portion, so that especially in a small-sized electro-optical device in which mixing the spacer member in the electro-optical material causes image deterioration. Very useful in cases.
- the conductive layer includes a plurality of conductive layers stacked on the substrate via an interlayer insulating film.
- a plurality of conductive layers form a three-dimensional structure such as a pixel electrode such as a reflective electrode, a wiring line such as a scanning line, a light-shielding film for an element such as a TFT (Thin Film Transistor) for switching the pixel electrode, and the like.
- a pixel electrode such as a reflective electrode
- a wiring line such as a scanning line
- a light-shielding film for an element such as a TFT (Thin Film Transistor) for switching the pixel electrode, and the like.
- TFT Thin Film Transistor
- a portion of the seal portion that does not include the spacer member is a sealing portion that seals an opening into which the electro-optical material is injected.
- the portion that does not include the spacer member is used as the sealing portion that seals the opening into which the electro-optical material is injected, so that one type of sealing material can be obtained by devising the wiring pattern.
- the electro-optical device of the present invention can be obtained by a conventional manufacturing method.
- the electro-optical material is liquid crystal and the sealing part seals the liquid crystal injection port, the width of the liquid crystal injection port is suitable for passing various wiring required for driving the liquid crystal. Practice: h is convenient.
- the one substrate includes a plurality of scanning lines and a plurality of data lines, and has a switching element and a pixel electrode connected thereto at a pixel position corresponding to each of these intersections.
- the first conductive layer serves as a wiring to a scanning line driving circuit that supplies a scanning signal to the scanning line, and a data layer that supplies a data signal to the data line.
- -It may be configured to include a second conductive layer serving as a wiring to the evening line drive circuit.
- the product of the wiring made of the first conductive layer and connected to the scanning line driving circuit and the wiring made of the second conductive layer and connected to the data line driving circuit is formed. Since there is no spacer member at the layer position, it is possible to prevent disconnection or short circuit of these wirings.
- a data line driving circuit and a scanning line driving circuit are formed in a region inside the seal portion, the first conductive layer and the second conductive layer often have a laminated structure, The configuration according to the present invention is useful.
- a part or the entirety of the conductive layer is a light-shielding film.
- the conductive layer is used for wiring, but also a part thereof (that is, at least a part of one conductive layer of the one or more conductive layers) is used for wiring and light shielding or for light shielding. It can be used exclusively for shading.
- the light shielding layer is specifically a metal layer such as A1.
- a light-shielding film that defines a frame of an image display area that actually contributes to image display in a seal inner area located inside the seal material when viewed two-dimensionally, a plurality of pixels arranged in the image display area Leakage current due to light from a light-shielding film (black mask, black matrix for color fill, black matrix, etc.) that shields the gap between the electrodes or defines the opening area of each pixel, and light from semiconductor elements such as TFTs that are provided for switching control of pixel electrodes
- the conductive layer can function as various light-shielding films such as a light-shielding film for preventing image quality defects due to the above.
- the light shielding film and the wiring are formed from the same conductive layer. Therefore, the device structure and the manufacturing process can be simplified.
- the electro-optical device further includes an interlayer insulating film formed on the wiring and subjected to a planarization process.
- the reflection due to flattening is used.
- dummy wiring is inserted to make the substrate surface height uniform along the seal portion, and the substrate spacing is controlled by a spacer member. If the processing is performed by CMP (Chemical Machine Polish) processing after inserting the dummy wiring, the CMP processing works well and the flatness can be improved.
- CMP Chemical Machine Polish
- the pixel electrode connected to the plurality of arrayed pixel electrodes and the wiring is provided in an inner region of the seal located inside the seal member when viewed in plan on the substrate. And a driving circuit for driving.
- the number of wirings that intersect the seal portion is generally much smaller than the number of wirings such as scanning lines and data lines from the driving circuit to each pixel.
- the area inside the seal further includes a plurality of scanning lines and a plurality of data lines connected to the pixel electrode, and the driving circuit includes the scanning line and the data line.
- the wiring arranged in the region on the substrate facing the portion of the seal portion that does not include the spacer member allows the scanning circuit drive circuit to be provided from the control circuit and signal source outside the seal region.
- signals can be supplied to the data line driving circuit.
- wiring made of a conductive metal film such as A1 increases the wiring capacitance and delay according to the wiring length routed on the substrate, but the wiring for the scanning line drive circuit with a low drive frequency
- a configuration may be adopted in which a control circuit for controlling the drive circuit is further provided in the region inside the seal.
- a signal can be supplied from the signal source located outside the seal to the control circuit by the wiring arranged in the region on the substrate facing the portion of the seal that does not include the spacer member.
- the number of wires from the signal source to the control circuit can be made smaller than the number of wires from the control circuit to the drive circuit, even if the portion of the sealing material that does not include the spacer member is small, the number of wires is small. It becomes possible.
- a substrate having a conductive layer laminated thereon and another substrate are formed on a sealing portion including a portion including a spacer member and a portion not including a spacer member. Therefore, in the method for manufacturing an electro-optical device to be bonded, a region of the seal portion that does not include the spacer member is provided in a region on the substrate where the wiring made of the conductive layer faces the seal portion.
- the method is characterized by including a seal part forming step of forming the seal part so as to be arranged.
- the seal portion is divided into a portion including the spacer member and a portion not including the spacer member, and the wiring formed of the conductive layer is formed on the substrate facing the seal portion.
- the seal portion is formed such that a portion of the seal portion that does not include the spacer member is disposed. That is, since a spacer member does not exist in the seal portion where the wiring made of the conductive layer intersects, even if the substrate is pressed and bonded when the pair of substrates are bonded by the seal portion, the wiring is locally formed by the spacer member. Pressure is not applied. Therefore, it is possible to prevent the disconnection of the wiring due to the spacer member.
- the sealing portion forming step includes an opening for injecting the electro-optical material into a region where the wiring made of the conductive layer faces the sealing portion. And a step of applying a sealing material so that is located.
- the opening (electro-optical material injection port) and the formation position of the wiring facing the seal portion are made to coincide with each other, and as long as the wiring pattern is devised, one type of seal material is used. Can be used to obtain the electro-optical device of the present invention. Of course, the opening is sealed with a sealing material after the injection of the electro-optical material.
- the method includes: The method further includes a wiring forming step of forming the wiring from the plurality of conductive layers stacked on the substrate via an interlayer insulating film.
- the spacer as described above can be used. It is possible to prevent not only the disconnection of the wiring caused by the member, but also the short circuit caused by the local pressure by the spacer member between the wirings stacked vertically.
- an electronic apparatus including the above-described electro-optical device as a display unit.
- the electronic apparatus of the present invention since the above-described electro-optical device of the present invention is provided, even if the substrate is pressed, the wiring is not subjected to local pressure by the spacer member. This makes it possible to prevent wiring failures due to a single member, thereby improving the quality of a displayed image, improving device reliability, and improving manufacturing yield.
- the conductive layer includes a plurality of conductive layers stacked on the substrate via an interlayer insulating film.
- a projection display device of the present invention is a projection display device that modulates light emitted from a light source by the above-described electro-optical device of the present invention, and projects the modulated light onto a screen. It is characterized by the following.
- the projection display device of the present invention since the light modulation is performed by the above-described electro-optical device of the present invention, even if the substrate is compressed, the wiring is not subjected to local pressure by the spacer member. This makes it possible to prevent wiring failures in the wiring portion caused by a single member, thereby improving device reliability and manufacturing yield.
- the conductive layer includes a plurality of conductive layers laminated on the substrate via an interlayer insulating film.
- FIG. 1 is a plan view showing the configuration of the electro-optical device according to the first embodiment of the present invention.
- FIG. 2 is a cross-sectional view taken along line AA 3 of FIG.
- FIG. 3 is an enlarged cross-sectional view of a wiring portion passing through a seal portion in the first embodiment.
- FIG. 4 is a cross-sectional view taken along line AA 5 in a modified example of the first embodiment.
- FIG. 5 is an equivalent circuit of various elements, wiring, and the like in a plurality of pixels formed in a matrix and forming an image display area according to the first embodiment.
- FIG. 6 is a cross-sectional view showing a laminated structure below a pixel electrode formed on an element substrate according to the first embodiment.
- FIG. 5 is a plan view showing a configuration of an electro-optical device according to a second embodiment of the present invention.
- FIG. 8 is a plan view showing the configuration of the electro-optical device according to the third embodiment of the present invention.
- FIG. 9 is a diagram illustrating a configuration of a mobile phone to which the electro-optical device of each embodiment is applied.
- FIG. 10 is a diagram showing a configuration of a portable information device to which the electro-optical device of each embodiment is applied.
- FIG. 11 is a diagram showing a configuration of a video camera to which the electro-optical device of each embodiment is applied.
- FIG. 12 is a diagram showing a schematic configuration of a projection display device to which the electro-optical device of each embodiment is applied.
- FIG. 1 is a plan view showing the configuration of the electro-optical device.
- 2 is a cross-sectional view of the electro-optical device taken along line A--A in FIG. 1
- FIG. 3 is an enlarged cross-sectional view of the wiring portion
- FIG. It is a sectional view cut.
- FIG. 5 is an equivalent circuit diagram of various elements, wiring, and the like in a plurality of pixels formed in a matrix forming an image display area of the electro-optical device.
- FIG. It is sectional drawing which shows the laminated structure under the formed pixel electrode.
- a plurality of scanning lines 51 and a plurality of data lines are provided on a silicon substrate 1 on which semiconductor switching elements are formed.
- Each of the lines 41 is formed, and a switching element described later (see FIGS. 5 and 6) and a pixel electrode 63 a connected thereto are formed at pixel positions corresponding to their respective intersections.
- the scanning line 51, the data line 41, the switching element, and the pixel electrode 63a constitute an image display area 11.
- the scanning line 51 is connected to a scanning line drive circuit 12 formed in an area inside the seal corresponding to the inside of the seal portion 3 on the substrate 1, and this scan line drive circuit 12 is A control circuit 14 formed in a region outside the seal corresponding to the outside of the seal portion 3 is connected via a wiring 81.
- the data line 41 is connected to the data line driving circuit 13 formed in the area inside the seal, and the data line driving circuit 13 is connected to the control circuit 14 and the wiring 82. Connected through.
- the control circuit 14 drives the scanning line drive circuit 12 and the data line drive circuit 13 based on a signal supplied through the electrode terminal 15 for external connection.
- the switching element for controlling the switching of each pixel electrode 63a, the scanning line driving circuit 12, the data line driving circuit 13 and the control circuit 14 are composed of, for example, a bulk silicon type MOS transistor. ing.
- the sealing portion 3 is made of a light-curing or thermosetting resin adhesive or the like, and surrounds an electro-optical material such as a liquid crystal between the two substrates, and a bead-like or face-like material mixed therein.
- a spacer member 32 having a predetermined particle size, such as a bur, is formed of the same or different light-curing property or thermosetting property as the sealing material 31 because such a spacer member 32 is not mixed therein.
- the substrate 1 and the substrate 1 two conductive layers 62b and 63b made of a conductive and reflective metal film such as A1 are provided. These conductive layers 6 2 b and 6 3 b are stacked via interlayer insulating films 72, 73 and 74, and the lower conductive layer 62 b is the wiring 81 1 shown in FIG. And 82.
- the upper conductive layer 63 b constitutes a light-shielding film that defines the frame of the image display area 11 along the seal portion 3.
- the above-described pixel electrode 63a is formed from the same film as the conductive layer 63b.
- the two substrates are bonded together with the sealing material 31 applied along the periphery thereof, the two substrates are compressed.
- an electro-optical material such as a liquid crystal is injected from the opening 33, and the opening 33 is sealed with a sealing material 34.
- the electro-optical material is sealed between the substrate 1 and the substrate 2 by the sealing portion 3 including the sealing material 31 and the sealing material 34.
- the spacer member 32 is mixed in the seal member 31, the spacer member 32 is not mixed in the sealing member 34, and therefore, the above-described operation is performed.
- the interlayer insulating films 72, 73 and 74 which are laminated together with the conductive layers 62 and 63 between the sealing material 34 and the substrate 1, are particularly flat.
- the conversion process need not be performed. That is, when the conductive layer 6 2b constituting the wirings 8 1 and 8 2 is present, local pressure is generally applied by the spacer member 32 to the uneven surface formed thereabove, and particularly the convex shape is formed. Disconnection or short circuit is easy due to stress concentration in the part, In the present embodiment, since the sealing material 34 that does not include the spacer member 32 exists above the interlayer insulating film 74, such disconnection or short circuit due to the spacer member 32 does not occur.
- the wirings 81 and 82 are present in a part (only part of one side) of the seal part 3 as in the present embodiment, the wiring 81 and 82 are spread over the entire area of the seal material whose height is not constant. In general, it is difficult or impossible to perform uniform gap control using a spacer member. However, in the present embodiment, the uneven surface on which the wirings 81 and 82 exist as described above is formed by the gap between the substrates by the spacer member 32. Not subject to control. As a result, even if unevenness caused by the wirings 81 and 82 is not flattened, there is no problem in controlling the gap between the substrates.
- the interlayer insulating films 72, 73 and 74 laminated together with the conductive layers 62b and 63b between the sealing material 34 and the substrate 1 are flattened by a CMP process or the like.
- the interlayer insulating film 73 is flattened.
- a CMP dummy pattern is formed from the conductive layers 62b and 63b, which are the base of the interlayer insulating film to be chemically polished in the CMP process, so that the CMP process is performed well. Good to do.
- the CMP dummy pattern made of the same film as the conductive layer 62b is patterned so as to cover almost the entire surface of the substrate 1 except for the wirings 81 and 82 formed by the conductive layer 62b.
- A1 is used for such a conductive layer 62b, and its thickness is about 500 nm (nano-mesh).
- the CMP dummy pattern made of the same film as the conductive layer 63b is used as a CMP dummy pattern that also serves as a light-shielding layer that covers the entire substrate 1 in a region other than the pixel electrode 63a. Eighty-one is used for the conductive layer 63 ⁇ , and its thickness is about 400 nm.
- the CMP dummy pad In the case of forming the CMP dummy pad in this manner, since the wirings 81 and 82 are not routed to the portion other than the opening 33, the lower portion of the sealing material 31 mixed with the spacer member 32 is not provided. In the same film as the conductive layers 62b and 63b located in the above, only the CMP dummy pattern exists. As a result, the flatness is improved, and the distance between the substrates 1 and 2 is uniform over the entire surface, so that a good display screen can be obtained.
- the interlayer insulating layers 72, 73, and 74 are each formed of silicon oxide or the like with a thickness of approximately 130 nm to 1100 nm. Of these, at least interlayer insulation
- the film 74 is preferably planarized by a CMP process to improve the reflectance of the pixel electrode 63a in the image display area. Practically, even if the interlayer insulating film 73 on the substrate 1 side is not flattened, it is possible to eventually sufficiently flatten the underlying surface of the pixel electrode 63a by flattening the interlayer insulating film 74. It is. In particular, as described above, if the CMP dummy pattern is formed from the same film as the conductive layer 62b and the conductive layer 63b, high flatness can be obtained by the CMP process.
- three conductive layers 61b, 62b and 63b may be provided on the substrate 1.
- the lower two conductive layers 6 lb and 62b constitute the wirings 81 and 82 shown in FIG.
- the upper conductive layer 63 b forms a light-shielding film that defines the frame of the image display area 11 along the seal portion 3. From the same film as the conductive layer 6 lb or 62 b, furthermore, the wiring of the MOS transistor, the internal wiring of the scanning line driving circuit 12, the data line driving circuit 13, and the control circuit 14, the wiring connecting these, A power supply line for supplying power to these drive circuits, a dummy pattern for CMP, and the like are formed.
- the pixel electrode 63a and the dummy pattern for CMP are formed from the same film as the conductive layer 63b.
- Other configurations are the same as those shown in FIG. 2, and in FIG. 4, the same reference numerals are given to the same components as those shown in FIG.
- the conductive layer 6 lb is formed of an A1 film or the like similarly to the conductive layers 62b and 63b, and has a thickness of about 50 Onm.
- Each of the interlayer insulating layers 71 to 74 is formed of silicon oxide or the like to have a thickness of approximately 130 nm to 1100 nm, and any of the layers may be planarized by a CMP process. When the CMP process is performed as described above, it is preferable to form a CMP dummy pattern from the conductive layers 61b, 62b, and 63b.
- the scanning line driving circuit 12 and the data line driving circuit J 13 are arranged in the area inside the seal on the substrate 1. Have been. Therefore, the total number of wirings 81 and 82 intersecting the seal portion 3 can be reduced as compared with the case where such a drive circuit is provided in the area outside the seal on the substrate 1. More specifically, for example, the wiring that intersects the seal portion 3 is a power supply line for about 3 to 4 drive circuits, a clock line for about 4 drive circuits, and a latch for about 2 to 4 drive circuits.
- Pulse lines about 1 to 24 image signal lines, etc.
- the total number of these is the number of wiring lines such as scanning lines 51 and data lines 41 from the driving circuit to each pixel (for example, several tens of lines). (Thousands) in general. Therefore, it is generally easier to pass the wiring through the opening 33 having a limited width, which is advantageous.
- the scanning line driving circuit 12 and the data line driving circuit 13 are arranged in the area outside the seal, the lead-out wiring from these driving circuits to the scanning line 51 and the data line 41 is not possible.
- the effect of the present invention of preventing a wiring failure caused by the spacer member 32 can be obtained.
- the data line driving circuit 13 is disposed closer to the portion where the wirings 81 and 82 intersect the seal portion 3 than the scanning line driving circuit 12 is.
- the wirings 8 1 and 8 2 increase the wiring capacity and delay according to the wiring length routed on the substrate 1, but the wiring 8 for the scanning line driving circuit 1 2 having a low driving frequency.
- the adverse effects of such wiring capacitance and delay can be reduced. This is advantageous because it can occur with little or no practical consequences.
- the wiring is made of the conductive layer 62b such as A1
- the wiring resistance hardly causes a problem because the wiring resistance can be basically kept low even if it is miniaturized.
- FIGS. 1 and 2 An example of a circuit configuration of the electro-optical device according to the present embodiment will be described with reference to FIGS.
- this configuration example it is assumed that three conductive layers are stacked on the substrate 1 with four interlayer insulating films interposed therebetween, as shown in FIG. You.
- a plurality of pixels formed in a matrix forming an image display area of the electro-optical device according to the present embodiment have a plurality of FETs 30 for controlling a pixel electrode 63a formed in a matrix.
- the data line 41 to which the image signal is supplied is electrically connected to the source of the FET 30.
- the image signals S 1, S 2,..., Sn written to the data lines 41 may be supplied line-sequentially in this order, or supplied to a plurality of adjacent data lines 41 in groups. You may do it.
- the scanning line 51 is electrically connected to the gate of the FET 30. At predetermined timing, the scanning lines 51 are pulsed with the scanning signals G1, G2,..., Gm, in this order.
- the pixel electrode 63 a is electrically connected to the drain of the FET 30, and by closing the switching of the FET 30, which is a switching element, for a certain period of time, the image signal S l, supplied from the data line 41, Write S2,..., Sn at predetermined timing.
- the image signals S1, S2,..., Sn of a predetermined level written in the liquid crystal via the pixel electrodes 63a are held for a certain period between the counter electrodes formed on the counter substrate.
- the liquid crystal modulates the light by changing the orientation and order of the molecular assembly according to the applied voltage level, thereby enabling gradation display.
- the incident light In the normally-white mode, the incident light cannot be passed through this liquid crystal portion according to the applied voltage, and in the normally-black mode, the incident light depends on the applied voltage.
- the light is allowed to pass through the liquid crystal portion, and as a whole, light having a contrast corresponding to the image signal is reflected from the liquid crystal device.
- the storage capacitor 70 is connected in parallel with the liquid crystal capacitor formed between the pixel electrode 63a and the counter electrode (the counter electrode 22 shown in FIG. 2).
- a second storage capacitor electrode formed of a part of the capacitor line 52 (or formed of a part of the scanning line 51 in the preceding stage) is connected to a first storage capacitor electrode extending from the drain electrode of the FET 30.
- the storage capacitor 70 is disposed so as to be opposed to the storage capacitor via an interlayer insulating film.
- the voltage of the pixel electrode 63a is held by the storage capacitor 70 for a time that is three digits longer than the time during which the source voltage is applied. Thereby, the holding characteristics are further improved, and a liquid crystal device having a high contrast ratio can be realized.
- a second conductive layer 62a also formed of a light-shielding film of A1 is formed below each pixel electrode 63a formed of a reflective film of A1.
- the second conductive layer 62a is made of the same film as the conductive layer 62b forming the wirings 81 and 82 described above, but has a function of shielding the gap between the pixel electrodes 63a adjacent to each other in the image display area. .
- an FET 30 is formed in an N-type (or P-type) well region 2 on a P-type (or N-type) semiconductor substrate 1 which is an example of one of the substrates.
- the elements are separated from each other by a field oxide film 4 for element isolation.
- a semiconductor substrate made of single crystal silicon, which is usually referred to as a wafer is used as the semiconductor substrate 1, the FET 30 can be directly formed on the substrate 1 as described above.
- a silicon substrate, a quartz substrate, a glass substrate, or the like that can form the FET 30 or the TFT on the substrate via a semiconductor film may be used.
- an opaque semiconductor substrate can be used because light need not be transmitted through the substrate 1. This is advantageous because it is easy to manufacture elements such as the FET 30 when manufacturing a small liquid crystal device.
- the well region 2 is formed by impurity diffusion, and the field oxide film 4 is formed by selective thermal oxidation.
- each FET 30 a highly doped source region 6a and a drain region 6b are formed in the cell region 2 through the opening of the field oxide film 4, and a gate region is formed in the channel region located therebetween.
- the gate electrode 5 is provided so as to face through the insulating film 5a.
- a first interlayer insulating film 71 is formed on the gate electrode 5 and the field oxide film 4.
- a first conductive layer 61a is provided on the first interlayer insulating film 71, and the source region 6a and the drain region are formed via contact holes CH1 and CH2 opened in the first interlayer insulating film 71, respectively.
- the source electrode and the drain electrode of the FET 30 are formed by being connected to the region 6b.
- the gate electrode 5 for example, highly doped conductive polysilicon or conductive metal silicide is used, and is formed by a CVD method or the like.
- the first interlayer insulating film 71 for example, high insulating glass such as NSG (non-doped silicate glass), PSG (phosphorous silicate glass), BSG (boron silicate glass), BPSG (boron silicate glass), or the like. Silicon oxide film, silicon nitride film, etc. 16
- A1 is used as the first conductive layer 6la, and is formed to a thickness of, for example, about 500 nm by a sputtering method.
- a second interlayer insulating film 72 is provided on the FET 30 configured as described above, and a second conductive layer 62a is provided on the second interlayer insulating film 72. 2 Connected to the drain electrode via contact hole CH3 opened in interlayer insulating film 72.
- the second conductive layer 62a also functions as a light shielding film that shields a gap between adjacent pixel electrodes 63a.
- a third interlayer insulating film 73 is formed on the second conductive layer 62a.
- the second interlayer insulating film 72 and the third interlayer insulating film 73 are made of, for example, high insulating glass such as NSG, PSG, BSG, BPSG, or a silicon oxide film, a silicon nitride film, or the like.
- the thickness of the second interlayer insulating film 72 is, for example, about 100 Onm
- the thickness of the third interlayer insulating film 73 is, for example, about 100 Onm.
- the second conductive layer 62a is made of A1, similarly to the first conductive layer 61a, and has a thickness of, for example, about 500 nm to 800 nm.
- a third interlayer insulating film 73 is formed, and a pixel electrode 63a is formed on this surface.
- the contact hole CH 4 opened in the third interlayer insulating film 73 is filled with a columnar connection plug made of a refractory metal such as tungsten, thereby forming the pixel electrode 63 a and the second electrode.
- the conductive layer 62a is connected.
- the pixel electrode 63a is made of A1, similarly to the first conductive layer 61a and the second conductive layer 62a, and has a thickness of, for example, about 400 nm.
- a TFT is formed using a semiconductor film such as a polysilicon film, an amorphous silicon film, or a single crystal silicon film (for example, a transparent substrate such as a quartz substrate or a glass substrate). ) It may be configured above.
- the circuit elements constituting the driving circuit and the like can be formed using the TFT in parallel with the process of forming the TFT, which is practically advantageous.
- the light-shielding film formed of the conductive layer as described above and disposed in the seal inner region (that is, opposed to the liquid crystal) is preferably set to the same potential as the counter electrode 22.
- FIG. 7 is a plan view showing the configuration of the electro-optical device. 7, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted.
- the control circuit 14 ′ is arranged not in the area outside the seal but in the area inside the seal together with each drive circuit, and the wiring from the connection electrode terminal 15 to the control circuit 14 is made of the conductive layer 6. 2b and the like, and are routed through openings 33 (regions facing the sealing materials 3 to 4).
- Other configurations are the same as those in the first embodiment.
- control circuit is prepared as an external circuit separate from the substrate 1 and a control signal is input from the externally connected control circuit via the connection electrode terminal 15.
- a structure in which the wiring from the connection electrode terminal 15 to the scanning line driving circuit 12 and the data line driving circuit 13 is routed to the opening 33 can also be adopted.
- FIG. 8 is a plan view showing the configuration of the electro-optical device. 8, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted.
- the seal portion 3 except for the portion in which the sealer member 31 is mixed with the seal member 31, and the opening portion 33 for injecting the electro-optical material. And a portion 13 1 in which the spacer member 32 is not mixed.
- Other configurations are the same as in the first embodiment.
- the wirings 81 and 82 formed of the conductive layers 62 b and the like are formed by the part 13 1 where the spacer member 32 is not mixed and the substrate. As they pass through the gap, they are not subjected to local pressure by the spacer member 32. Therefore, it is possible to avoid a wiring failure due to a short circuit or disconnection caused by the spacer member 32.
- a sampling circuit for sampling the image signal at a predetermined timing, and a precharge signal of a predetermined potential is written at a timing preceding the image signal for each data line to reduce a writing load on the data line of the image signal.
- a precharge circuit may be formed, or an inspection circuit or the like for inspecting the quality, defect, or the like of the liquid crystal device during manufacturing or shipping may be formed.
- Japanese Patent Publication No. 9-1 2 7 4 9 7 Japanese Patent Publication No. 3-5 2 611, Japanese Patent Application Laid-Open No. 3-1 2 5 1 2 3, Japanese Patent Publication No. 7-1 7 1 1 As disclosed in Japanese Patent Publication No.
- a light-shielding film made of, for example, a refractory metal is also provided on the substrate 1 at a position facing the FET 30 or the TFT (that is, below the FET 30). You may.
- the pixel electrode 63a can be formed of a transparent electrode such as an IT0 (Indium Tin Oxide) film, so that the transmission-type electro-optical device can be obtained. In this case, it is possible to prevent return light and the like from the substrate 1 side from being incident on the FET 30 and the like.
- TN Transmission Nematic
- VA Very Aligned
- PDLC Polymer Dispersed Liquid Crystal
- a polarizing film, a phase difference film, a polarizing plate, and the like are arranged in a predetermined direction according to an operation mode such as a mode, a normal mode, a white mode / a normally black mode.
- a color filter of RGB may be formed on the opposing substrate 2 together with the protective film in a predetermined area opposing the pixel electrode 63 a.
- a color fill layer with a color resist or the like below the pixel electrode 63 a facing the RGB on the substrate 1.
- the devices of the embodiments can be applied to a color electro-optical device such as a direct-view or reflection-type color liquid crystal television.
- a micro lens may be formed on the counter substrate 2 so as to correspond to one pixel.
- a bright electro-optical device can be realized by improving the efficiency of collecting incident light.
- a dichroic filter that produces RGB colors using light interference may be formed by depositing several interference layers having different refractive indexes on the counter substrate 2. According to this counter substrate with a dichroic filter, a brighter electro-optical device can be realized.
- steps in each interlayer insulating film may be left as they are, or an uneven surface may be formed instead of the above-described CMP process.
- FIG. 9 shows a mobile phone
- FIG. 10 shows a portable information terminal
- FIG. 11 shows a video camera with an electro-optical material finder.
- 1 is an electronic apparatus including the electro-optical device 1101 according to the embodiment as a display unit.
- FIG. 12 is an example of an electronic apparatus using the electro-optical device of the present invention.
- the main part of a projector (projection display device) using the electro-optical device of the present invention as a reflective light valve is shown in a plan view.
- FIG. FIG. 12 is a cross-sectional view taken along the XZ plane passing through the center of the polarization conversion element 130.
- the projector of this example is composed of a light source unit 110, an integrator lens 120, and a polarization conversion element 130 arranged along the system optical axis L.
- a dichroic mirror that separates the blue light (B) component, a reflected light valve that modulates the separated blue light (B), and a blue light (B) after the blue light is separated
- Dichroic mirror that reflects and separates the red light (R) component of the luminous flux
- reflective light valve that modulates the separated red light (R) 300 R
- dichroic mirror Reflective light that modulates the remaining green light (G) passing through Lube 300 G
- three reflective light valves 300 R, 300 G, and 300 B are used to convert the light modulated by the dichroic mirrors 4 1 2, 4 13, and polarized beam splitters 20.
- a projection optical system 500 composed of a projection lens that combines light at 0 and projects this combined light onto a screen 600.
- the electro-optical device according to the first, second, or third embodiment is used, respectively.
- the light After being divided into a plurality of intermediate light beams by 20, the light is converted into one type of polarized light beam (S-polarized light beam) having a substantially uniform polarization direction by a polarization conversion element 130 having a second integer lens on the light incident side. After that, the polarization beam splitter reaches 200.
- the S-polarized light beam emitted from the polarization conversion element 130 is reflected by the S-polarized light beam reflecting surface 201 of the polarization beam splitter 200, and the blue light beam (B) of the reflected light beam is a dichroic mirror.
- the light is reflected by the blue light emitting layer and is modulated by the reflective light valve 300B.
- the red light (R) of the light transmitted through the blue light reflecting layer of the dichroic mirror 412 is reflected by the red light reflecting layer of the dich opening mirror 413 and modulated by the reflective light valve 30 OR.
- the luminous flux of the green light (G) transmitted through the red light reflecting layer of the dichroic mirror 413 is modulated by the reflective light valve 300G. In this way, color light is modulated by each of the reflective light valves 300R, 300G, and 300B.
- the electro-optical device that becomes the reflection type light valve 300R, 300G, 300 is a TN type liquid crystal (a liquid crystal in which the major axes of liquid crystal molecules are aligned substantially parallel to the panel substrate when no voltage is applied).
- SH-type liquid crystal a liquid crystal in which the major axis of the liquid crystal molecules is oriented substantially perpendicular to the panel substrate when no voltage is applied is used.
- the pixel applied to the liquid crystal layer sandwiched between the pixel's reflective electrode and the common electrode of the opposing substrate is the pixel below the liquid crystal threshold voltage (OFF pixel).
- the incident color light is elliptically polarized by the liquid crystal layer, reflected by the reflective electrode, and passed through the liquid crystal layer as light in a state close to elliptically polarized light, which has a polarization axis component that is almost 90 degrees shifted from the polarization axis of the incident color light. The reflection is emitted.
- the incident color light reaches the reflective electrode as it is, is reflected, and is reflected and emitted with the same polarization axis as at the time of incidence. Since the alignment angle of the liquid crystal molecules of the TN liquid crystal changes according to the voltage applied to the reflective electrode, the angle of the polarization axis of the reflected light with respect to the incident light depends on the voltage applied to the reflective electrode via the transistor of the pixel. Variable.
- the pixels (OFF pixels) whose applied voltage to the liquid crystal layer is lower than the threshold voltage of the liquid crystal reach the reflective electrode with the incident color light and reflect light.
- the incident color light is elliptically polarized by the liquid crystal layer, reflected by the reflective electrode, and polarized through the liquid crystal layer with respect to the polarization axis of the incident light.
- the light is reflected and emitted as elliptically polarized light with a large axis component shifted by about 90 degrees.
- the alignment angle of the liquid crystal molecules of the TN liquid crystal changes according to the voltage applied to the reflective electrode, so the angle of the polarization axis of the reflected light with respect to the incident light is determined by the pixel transistor. Variable according to the voltage applied to the reflective electrode via the.
- the s-polarized light component does not pass through the polarization beam splitter 200 that reflects the S-polarized light, whereas the P-polarized light component does.
- An image is formed by the light transmitted through the polarizing beam splitter 200. Therefore, when the TN liquid crystal is used for the electro-optical device, the reflected image of the OFF pixel reaches the projection optical system 500 and the reflected light of the ON pixel does not reach the lens.
- the SH liquid crystal is used, the reflected light of the OFF pixels does not reach the projection optical system and the reflected light of the ON pixels reaches the projection optical system 500, so that a normally black display is obtained.
- Reflection-type electro-optical devices use semiconductor technology to form more pixels than active matrix-type electro-optical devices in which a TFT array is formed on a glass substrate.
- the size of the projector can be reduced, so high-definition images can be projected and the size of the projector can be reduced.
- LCD TVs In addition to the electronic devices shown in Figs. 9 to 12 above, LCD TVs, viewfinder type or monitor direct view type video tape recorders, power navigation devices, electronic organizers, calculators, word processors, engineering workstations
- the electro-optical devices according to the first to third embodiments can also be applied to electronic devices such as (EWS), videophones, POS terminals, and devices having a touch panel.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55781999A JP3324120B2 (ja) | 1998-07-27 | 1999-07-26 | 電気光学装置、電気光学装置の製造方法、投射型表示装置及び電子機器 |
EP99931548A EP1026652B1 (en) | 1998-07-27 | 1999-07-26 | Arrangement of spacer beads in the seal of an electro-optic display to prevent damage to underlying conductors |
KR10-2000-7003186A KR100505525B1 (ko) | 1998-07-27 | 1999-07-26 | 전기 광학 장치, 전기 광학 장치의 제조 방법, 투사형표시 장치 및 전자 기기 |
US09/509,198 US6720944B1 (en) | 1998-07-27 | 1999-07-26 | Electro-optical device, method of manufacturing same, projector and electronic apparatus |
DE69923425T DE69923425T2 (de) | 1998-07-27 | 1999-07-26 | Anordnung von kugelförmigen Abstandshaltern in der Dichtung einer elektooptischen Anzeige zur Verhinderung von Schäden an darunterliegenden Leiterbahnen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21129398 | 1998-07-27 | ||
JP10/211293 | 1998-07-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000007170A1 true WO2000007170A1 (fr) | 2000-02-10 |
Family
ID=16603545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/004003 WO2000007170A1 (fr) | 1998-07-27 | 1999-07-26 | Dispositif electro-optique, son procede de fabrication, affichage a projection et dispositif electronique |
Country Status (6)
Country | Link |
---|---|
US (1) | US6720944B1 (ja) |
EP (1) | EP1026652B1 (ja) |
JP (2) | JP3324120B2 (ja) |
KR (1) | KR100505525B1 (ja) |
DE (1) | DE69923425T2 (ja) |
WO (1) | WO2000007170A1 (ja) |
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JP2003316517A (ja) * | 2002-04-26 | 2003-11-07 | Hosiden Corp | タッチパネル |
WO2007110995A1 (ja) * | 2006-03-29 | 2007-10-04 | Sharp Kabushiki Kaisha | 表示装置 |
WO2009087706A1 (ja) * | 2008-01-09 | 2009-07-16 | Sharp Kabushiki Kaisha | 表示装置 |
JP2010085882A (ja) * | 2008-10-02 | 2010-04-15 | Seiko Epson Corp | 液晶装置、プロジェクタ及び電子機器 |
JP2011118331A (ja) * | 2009-12-03 | 2011-06-16 | Samsung Mobile Display Co Ltd | タッチスクリーンパネル一体型平板表示装置 |
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JP4789369B2 (ja) * | 2001-08-08 | 2011-10-12 | 株式会社半導体エネルギー研究所 | 表示装置及び電子機器 |
US6845016B2 (en) * | 2001-09-13 | 2005-01-18 | Seiko Epson Corporation | Electronic device and method of manufacturing the same, and electronic instrument |
JP3953320B2 (ja) * | 2001-12-28 | 2007-08-08 | 三洋電機株式会社 | 表示装置及びその製造方法 |
JP3995476B2 (ja) * | 2001-12-28 | 2007-10-24 | 三洋電機株式会社 | 表示装置及びその製造方法 |
TWI296062B (en) * | 2001-12-28 | 2008-04-21 | Sanyo Electric Co | Liquid crystal display device |
TWI230304B (en) * | 2002-03-04 | 2005-04-01 | Sanyo Electric Co | Display device with reflecting layer |
JP4085369B2 (ja) * | 2002-10-10 | 2008-05-14 | 日本ビクター株式会社 | 液晶表示装置 |
KR100906635B1 (ko) * | 2002-10-23 | 2009-07-10 | 삼성전자주식회사 | 액정 표시 장치 |
KR101037082B1 (ko) * | 2003-12-22 | 2011-05-26 | 엘지디스플레이 주식회사 | 액정표시패널 |
JP4448834B2 (ja) * | 2006-04-25 | 2010-04-14 | セイコーエプソン株式会社 | 電気光学装置、及びこれを備えた電子機器 |
KR20080001793A (ko) * | 2006-06-30 | 2008-01-04 | 엘지.필립스 엘시디 주식회사 | 액정 표시 장치 및 그 제조 방법 |
JP2009075394A (ja) * | 2007-09-21 | 2009-04-09 | Seiko Epson Corp | 電気光学装置及びこれを備えた電子機器 |
JP2009110785A (ja) * | 2007-10-30 | 2009-05-21 | Toppan Printing Co Ltd | 有機el素子パネル及びその製造方法 |
US8334961B2 (en) * | 2008-09-10 | 2012-12-18 | Kent Displays Incorporated | Electrooptical display with electrical crossover |
KR20130045733A (ko) * | 2011-10-26 | 2013-05-06 | 삼성디스플레이 주식회사 | 표시 패널 및 이의 제조 방법 |
KR101993331B1 (ko) * | 2013-01-03 | 2019-06-27 | 삼성디스플레이 주식회사 | 유기발광표시장치 및 그 제조방법 |
KR102204976B1 (ko) * | 2013-11-13 | 2021-01-20 | 삼성디스플레이 주식회사 | 표시 장치 및 그것의 제조 방법 |
KR102439308B1 (ko) * | 2015-10-06 | 2022-09-02 | 삼성디스플레이 주식회사 | 표시장치 |
JP7239804B2 (ja) * | 2018-08-31 | 2023-03-15 | 日亜化学工業株式会社 | レンズ及び発光装置並びにそれらの製造方法 |
CN113097263B (zh) * | 2021-03-25 | 2024-05-24 | 京东方科技集团股份有限公司 | 显示基板和显示装置 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003316517A (ja) * | 2002-04-26 | 2003-11-07 | Hosiden Corp | タッチパネル |
WO2007110995A1 (ja) * | 2006-03-29 | 2007-10-04 | Sharp Kabushiki Kaisha | 表示装置 |
WO2009087706A1 (ja) * | 2008-01-09 | 2009-07-16 | Sharp Kabushiki Kaisha | 表示装置 |
JPWO2009087706A1 (ja) * | 2008-01-09 | 2011-05-19 | シャープ株式会社 | 表示装置 |
JP2010085882A (ja) * | 2008-10-02 | 2010-04-15 | Seiko Epson Corp | 液晶装置、プロジェクタ及び電子機器 |
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Also Published As
Publication number | Publication date |
---|---|
DE69923425T2 (de) | 2005-07-07 |
DE69923425D1 (de) | 2005-03-03 |
KR100505525B1 (ko) | 2005-08-04 |
KR20010030705A (ko) | 2001-04-16 |
US6720944B1 (en) | 2004-04-13 |
EP1026652B1 (en) | 2005-01-26 |
EP1026652A4 (en) | 2003-07-30 |
JP2001056651A (ja) | 2001-02-27 |
JP3324120B2 (ja) | 2002-09-17 |
EP1026652A1 (en) | 2000-08-09 |
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