Abstract: An organic semiconductor device includes organic semiconductor layers (3, 4) and an electron injecting electrode (5) which is composed of MgAu alloy and injects electrons into the organic semiconductor layers (3, 4). The MgAu alloy forming the electron injecting electrode (5) may contain not more than 85 atom % of Au. The organic semiconductor device may further include a hole injecting electrode (2) for injecting holes into the organic semiconductor layers (3, 4). The electron injecting electrode and the hole injecting electrode are arranged apart from each other in such a manner that they fit to each other. The organic semiconductor device may further include a gate electrode which is arranged opposite, via an insulating film, to the region between the electron injecting electrode and the hole injecting electrode.

Abstract: An organic light emitting device can includes first and second metal layers used as electrodes on a substrate, an electron transport layer on the first metal layer, a first partition wall insulating the first metal layer from the second metal layer and extending onto the electron transport layer along the first metal layer, a second partition wall on the first metal layer around the electron transport layer, a third partition wall separated from the first partition wall and on the second metal layer, an organic light emitting layer on the electron transport layer, a hole transport layer on the organic light emitting layer and contacting the second metal layer, a protecting layer covering the hole transport layer and extending to the first and second metal layers beyond the second and third partition walls, and sealing materials filling spaces between the protecting layer and the first and second layers.

Abstract: A green pixel is provided with an organic EL element having an emissive layer which emits green light, but is not provided with a color filter. On the other hand, red and blue pixels comprise organic EL elements having an emissive layer which emits white light. The white emissive layer is composed of a lamination of an orange organic emissive layer and a blue organic emissive layer. The red and blue pixels are further provided with red and blue color filters, respectively, to limit the emitted white light to those colors.

Abstract: Color non-uniformity due to LED light sources of a liquid crystal display (LCD) device is improved. A light quantity control film is arranged between an LED source and the entrance surface of a mixing light guide plate. This light quantity control film is arranged in the part which reduces the quantity of light of the LED with the strongest light quantity among a plurality of same colors.

Abstract: A method of making an electroluminescent (EL) light which includes at least one design. A flexible EL lamp is used which has a front electrode, a phosphor layer, a dielectric layer and a rear electrode layer. A pattern is cut out from the flexible EL lamp and at least one line is determined on the cut out to divide the design into at least two geometric areas, which are preferably of approximately equal size. A scribe line is cut into the rear electrode along such line, which forms split electrode areas in the rear electrode. Connecting devices are attached to each split electrode area, which are adapted to be connected to a power source. A method of making an EL light that is adaptable to be inserted into a channel, with the light having at least one indicia such as a letter, number, symbol or the like. A first form of the desired indicia is cut out from a plastic backing sheet. A second form of the desired indicia is cut out from flexible EL lamp of the form mentioned above.

Abstract: An organic light emitting display device capable of displaying two images. The organic light emitting display device according to an embodiment of the present invention includes a first substrate including a plurality of pixel circuits and first organic light emitting diodes in a region defined by a plurality of data lines and scan lines, and a second substrate spaced from and facing the first substrate, the second substrate including second organic light emitting diodes. A pixel of the organic light emitting display device includes a corresponding one of the pixel circuits and a corresponding one of the first organic light emitting diodes and a corresponding one of the second organic light emitting diodes coupled to the pixel circuit.

Abstract: Disclosed is a flat display device which prevents electrode disconnection due to step differences between regions of a display panel. The flat display device includes: a substrate; a plurality of thin film transistors being located in a first region of the substrate; a wire unit located on the substrate and separated from the first region; a conductive layer located on the substrate between the first region and the wire unit; and a plurality of display elements electrically connected to the thin film transistors in the first region.

Abstract: A lamp structure includes a plurality of carrier units and a plurality of hollow heat dissipating units put together in an alternating manner so that each carrier unit abuts on at least a hollow heat dissipating unit. Light emitting elements are fitted on the top surface or bottom surface of each carrier unit. The heat generated by light emitting elements is swiftly passed from each carrier unit to the neighboring hollow heat dissipating units and then is quickly dissipated into the ambient air through the hollow portions. Therefore, the goal of fast heat dissipation may be reached.

Abstract: This invention relates to a fabricating method of an organic electro luminescence display device that is adaptive for simplifying a process by forming a barrier rib by use of a new material, and an organic electro luminescence display device using the same. A fabricating method of an organic electro luminescence display device according to an embodiment of the present invention includes: forming an anode electrode on an upper substrate; depositing ZnO on the entire surface of the upper substrate and forming a ZnO film by making the deposited ZnO grow crystals; forming a barrier rib with a reverse taper shape that divides an area where the organic light emitting layer is to be formed on the upper substrate by patterning the ZnO film; forming an organic light emitting layer in the cell area that is divided by the barrier rib; and forming a cathode electrode on the organic light emitting layer.

Abstract: A laminated light-emitting diode display device and a manufacturing method thereof are described. The laminated light-emitting diode display device has an insulator, a circuitry device placed on the insulator and having of a plurality of circuits interconnected with each other, and a plurality of SMT-type light-emitting diodes electrically connected to the circuits of the circuitry unit.

Abstract: The present invention provides in one embodiment a light emitting device that has a high efficacy even in a range of low color temperatures, a long-term reliability, and an improved color rendering property. In addition, the present invention provides in another embodiment a lighting apparatus using such a light emitting device. In the light emitting device, a mixture of a first phosphor material that emits yellow green, yellow or yellow orange light and a second phosphor material that emits light having a longer wavelength than the first phosphor material, for example, yellow orange or orange light is used as a phosphor. The first phosphor material is represented by a general formula Cax(Si, Al)12(O, N)16:Euy2+ and a main phase thereof has an alpha-SiAlON crystal structure.

Abstract: A metal solder layer is formed on a sealing substrate through patterning. A pixel substrate is overlapped to the sealing substrate and the solder layer is irradiated with laser so that the sealing substrate and the pixel substrate are connected. Because the joining is achieved by the metal solder layer, intrusion of moisture into the inside space can be reduced. In addition, the solder layer can be very precisely formed through patterning.

Abstract: It is an object of the present invention to prevent a bright pixel defect caused by continuous current flow into a pixel, or to provide a display device in which effects on the surrounding pixels due to concentration of current on a part of the pixel can be suppressed. A display device according to the invention has a wiring for supplying current provided over an insulating surface, and a pixel electrode connected to the wiring. The pixel electrode has a layered structure of a plurality of different conductive films. Further, the pixel electrode has a narrow width region at least in a region where the wiring and the pixel electrode are electrically connected to each other. For example, a layered structure of a metal film and a transparent electrode can be used as a plurality of different conductive films.

Abstract: An electroluminescent display device comprising a plurality of pixels for generating light emission disposed over a substrate arranged in a matrix with rows and columns wherein each pixel includes first and second electrodes, an electroluminescent media disposed between the first and second electrodes, and at least one transistor electrically connected to the first electrode to regulate an electrical current flow to the organic electroluminescent media; a plurality of power lines arranged in either the row or column direction for supplying electrical current to the transistor of each pixel; at least one power bypass line electrically connected to two or more of the plurality of power lines; and the power lines formed from a patterned first conductor layer and the first electrodes and the power bypass lines formed from a patterned second conductor layer and wherein the first and second conductor layers are spaced apart from each other.

Abstract: An active matrix display device has an array of oled display pixels (2) operable in two modes in which the power supply line (26) is modulated between a low voltage and a normal power supply voltage. In a first mode, a pixel drive transistor current is supplied to the display element (2) and is selected to provide a desired pixel brightness. In a second mode, a voltage is provided to the drive transistor and is selected to provide a desired ageing effect, but no current flows through the display element. The frame time is thus divided into two periods, one when the power supply line (26) is supplied with a voltage of e.g. OV or ?5V to turn the display element on and the other when the power supply line (26) is supplied with a voltage of e.g. OV or ?5V to turn the display element off.

Abstract: The present invention provides an organic EL display device which imparts the flexibility to the pull-around operation of lines. The organic EL display device is characterized in that the display device includes a display part and a display drive circuit which is formed on a periphery of the display part on a surface of a substrate, wherein the display part includes a plurality of pixels driven by the display drive circuit, each one of the pixels is formed of a stacked body which is constituted of at least one electrode, a light emitting layer and another electrode stacked from the substrate side, another electrodes of respective pixels are electrically connected in common, and a conductive layer which is formed on the same layer and is made of the same material as another electrodes is formed on a region other than the display region in a state that the conductive layer is electrically separated from another electrodes.

Abstract: A display panel includes: data lines adapted to transmit a data signal; scan lines adapted to transmit a select signal; and pixels, each pixel being coupled to one of the scan lines and one of the data lines, and each pixel including: light emitting elements adapted to emit light corresponding to a current supplied thereto; a pixel driver adapted to input the data signal while the select signal is being supplied and to output a first current corresponding to the data signal; and switching units adapted to transmit the first current to the light emitting elements, each of the switching units including first transistors respectively coupled between the pixel driver and the light emitting elements, and having different type channels.

Abstract: The unlit margin of a first EL lamp is covered by the lit edge of a second EL lamp to provide a substantially seamless lit area. The lamps are joined mechanically. The EL lamps are connected in parallel electrically by conductive tape overlying at least a portion of the bus bars of the lamps. A plurality of lamps can be joined together to provide an EL lamp substantially larger than obtainable by other means.

Abstract: A mother glass including a plurality of organic electro luminescence arrays having a scan pad and a data pad, wherein the plurality of organic electro luminescence arrays are arranged in a matrix type, comprising a non-array area, arranged between the organic electro luminescence arrays arranged in the matrix type, and an edge area located at an exterior of the arrangement of the matrix; at least more than one positive shorting bar formed at the edge area to supply with a positive voltage; at least more than one negative shorting bar formed at the edge area to supply with a negative voltage; a first line formed at the non-array area to electrically connect the data pad, formed in each of organic electro luminescence arrays, to the positive shorting bar; and a second line formed at the non-array area to electrically connect the scan pad, formed in each of organic electro luminescence arrays, to the negative shorting bar.

Abstract: It is an object of the present invention to provide a light-emitting device that is high in color purity of light and is high in light extraction efficiency, where sputtering is used to form an electrode on an electroluminescent layer without damage to a layer including an organic material.

Abstract: An organic electroluminescence display in which an insulating layer underlying a lower electrode is selectively formed in each of R, G, and B sub-pixels to prevent the shifting of chromaticity coordinates and reduce power consumption, and a method of manufacturing the same are provided. The organic electroluminescence display includes a substrate including a plurality of sub-pixel regions, each of the sub-pixel regions include including an emitting region and a non-emitting region and emits a predetermined color of light, a plurality of driving units provided in the non-emitting region of each sub-pixel region, a plurality of pixel electrodes provided in the emitting region of each sub-pixel region and connected with one of the respective driving units, and an insulating layer provided under the pixel electrodes, wherein the insulating layer is provided on an entire surface of the substrate except for at least one of the emitting regions in the sub-pixel regions.

Abstract: Provided are an organic thin film transistor (TFT), which can prevent deformation or separation due to mechanical stress, and a flat panel display device including the organic TFT. The organic TFT includes a gate electrode; a source electrode and drain electrodes insulated from the gate electrode; an organic semiconductor layer insulated from the gate electrode, and contacting the source electrode and the drain electrodes; and a gate insulating layer insulating the gate electrode from the source electrode, the drain electrode, and the organic semiconductor layer. The gate insulating layer may be patterned in an island shape to permit adjacent portions of the substrate to flex freely, thereby reducing stress and deformation of the organic TFT and its component layers.

Abstract: An organic electroluminescent element 1 according to the present invention includes: a substrate 2; a first electrode 3 formed on the substrate; an organic light-emitting layer 5 formed on the first electrode 3 so as to be brought into contact with the first electrode 3; and a second electrode 6 formed on the organic light-emitting layer 5, characterized in that an ion-doped surface onto which hydrogen ions or hydroxide ions are doped as dopant is provided in the vicinity of a contact interface B between the first electrode 3 and the organic light-emitting layer 5. By such characteristics, an organic electroluminescent element can be obtained, in which a low-voltage drive is made possible, and a long lifetime is realized.

Abstract: A display panel includes a light-emitting element substrate provided with a plurality of pixels that are arranged in a matrix corresponding to intersections of a plurality of scanning lines and a plurality of data lines, a light-emitting element provided at each of the pixels that is driven on the basis of image data of each of the pixels, and a power supply line pad and a data line pad that are disposed on the light-emitting element substrate in a two-dimensional manner, the power supply line pad being provided with terminals of a plurality of power supply lines that supply the power to the pixels and the data line pad being provided with terminals of the plurality of data lines.

Abstract: An alternating current light-emitting device includes a substrate, an alternating current microdie light-emitting module, and a conductive structure. The alternating current microdie light-emitting module is formed on the substrate and has at least two microdies and a concave portion disposed between the two microdies. Each of the microdies has at least one active layer. The conductive structure electrically connects the microdies and thereby enables the active layers of the microdies to take turns to emit light during positive and negative half cycles of alternating current. The conductive structure is formed in the concave portion and covers an insulator. The present invention prevents undue open circuits but enhances yield.

Abstract: A sealing structure having a barrier membrane, with which the overall thickness of a display device can be reduced while ensuring sufficient barrier properties against water and oxygen so as to prevent deterioration of luminous layers. The sealing structure comprises a multi-layered resin membrane 14b for sealing an electronic element section 3 disposed on a substrate 2, which is formed by alternately depositing flattening resin layers 14c and barriers layers 14d on the substrate 2. The flattening resin layers 14c are formed inside a blocking region 14a surrounding the electronic element section 3. A display device having the sealing structure, an electronic apparatus having the display device, and a fabrication method for the display device are also disclosed.

Abstract: An active matrix electroluminescence device and a method for fabricating the same for enhancing electrical characteristics of a wire are disclosed. The method includes forming a wire on a non-emissive area of a substrate, and forming transistors on an emissive area of the substrate, forming an insulating layer on the substrate, the wire, and the transistors, and selectively removing the insulating layer, so as to expose the wire, forming a first electrode on the insulating layer in the emissive area, forming an electroluminous layer on the first electrode, and forming a second electrode on the electroluminous layer and the wire.

Abstract: An organic light-emitting source includes a light-guiding substrate, at least one light-source area and a reflecting layer. The light-guiding substrate has a first surface and a second surface. The first surface includes at least one light-guiding part, which is a light guiding structure disposed on the light-guiding substrate. The light-source area includes at least one organic electroluminescent device, which sequentially includes a first electrode, at least one organic functional layer and a second electrode disposed over the first surface of the light-guiding substrate. The reflecting layer is disposed over the second surface of the light-guiding substrate.

Abstract: Light emitting devices formed in an array on a first substrate are transferred to an insulating material, to form a sheet-shaped device substrate. The sheet-shaped device substrate is cut along an array direction of the light emitting devices into long-sized line-shaped device substrates. The line-shaped device substrates are arrayed on a second substrate such that the line-shaped device substrates are enlargedly spaced from each other. The line-shaped device substrates divided from the second substrate are arrayed on a third substrate such as to be enlargedly spaced from each other.

Abstract: An electro-optical device includes a first sub pixel and a second sub pixel. A pixel is configured by the first sub pixel and the second sub pixel only, and the first sub pixel and the second sub pixel emit light of different colors.

Abstract: A display panel includes a transistor array substrate which has a plurality of transistors including at least a driving transistor, and a plurality of pixel electrodes electrically connected to the driving transistor of the plurality of transistors. A plurality of light-emitting layers are provided on the pixel electrodes. A counter electrode is provided on the light-emitting layers. Each of a plurality of interconnections is arranged between the pixel electrodes adjacent to each other and electrically connected to the counter electrode.

Abstract: A data line drive circuit is equipped with a single line driver and a gate voltage generation circuit. The single line driver is constructed such that N groups (where N is an integer 2 or larger) of series connections of drive transistors and switching transistors are connected in parallel. The gate voltage generation circuit includes two transistors constituting a current mirror circuit, a drive transistor, and a constant voltage generation transistor. The range of an output current Iout can be controlled by changing any of the design values of the parameters including: relative values Ka and Kb of the gain coefficient for the transistors, the source voltage VDREF of the gate voltage generation circuit, and the gate signal VRIN of the drive transistor.

Abstract: An organic electroluminescence display device and a method for fabricating the same is described. The organic electroluminescence display device comprises pixels defined by a gate line and a data line perpendicular to the gate line, a switching device and a driving device formed in the unit pixel, a first power line, a transparent electrode layer and a conductive electrode layer for supplying a driving signal to the driving device, a storage electrode overlapped with the first power line such that an insulating layer is interposed therebetween, and an organic electroluminescence layer.

Abstract: In an embodiment of the invention, a microcavity OLED device that minimizes or eliminates color change at different viewing angles is fabricated. The OLED device can be, for example, an OLED display or an OLED light source used for area illumination. This OLED device includes a multi-layer mirror on a substrate, and each of the layers are comprised of a non-absorbing material. The OLED device also includes a first electrode on the multi-layered first mirror, and the first electrode is substantially transparent. An emissive layer is on the first electrode. A second electrode is on the emissive layer, and the second electrode is substantially reflective and functions as a mirror. The multi-layer mirror and the second electrode form a microcavity. On a front surface of the substrate is a light modulation thin film.

Abstract: A semiconductor device including n, where notation n denotes a positive integer at least equal to three, conductive layers created as stacked layers on a substrate and connected to each other through a contact pattern, a manufacturing method thereof and a display apparatus thereof are provided.

Abstract: A display device includes a substrate, a display portion formed on the substrate, an upper layer which covers the display portion, and a gas barrier layer provided between at least a part of the substrate and the display portion. The gas barrier layer is positioned near to the position which forms a neutral plane when bending moment in a direction in which the substrate is warped acts on the overall display device.

Abstract: The present invention provides a technique for fabricating a multicolor light-emitting lamp by using a blue LED having a structure capable of avoiding cumbersome bonding. In particular, the present invention provides a technique for fabricating a multicolor light-emitting lamp by using a hetero-junction type GaP-base LED capable of emitting high intensity green light in combination. Also, for example, in fabricating a multicolor light-emitting lamp from the blue LED and the yellow LED, the present invention provides a technique for fabricating a multicolor light-emitting lamp from a blue LED requiring no cumbersome bonding and a hetero-junction type GaAs1-ZPZ-base yellow LED of emitting light having high light emission intensity.

Abstract: The present invention provides a display device which can suppress mura or irregularities of brightness of a display. To be more specific, in a display device including the plurality of pixels which are arranged in a matrix array and are respectively provided with light emitting layers, a power source is supplied to the respective light emitting layers of the respective pixels which are arranged in parallel in one direction among the respective pixels through a common power source signal line, wherein the respective pixels allow the light emitting layers thereof to have different thicknesses from each other in a state that the thickness of the light emitting layer at an upstream side of a flow of an electric current along the power source signal line is larger than the thickness of the light emitting layer at a downstream side of the flow of the electric current along the power source signal line.

Abstract: A mixed-color light emitting diode (LED) apparatus may be made by forming a pixellated array of LEDs on a substrate, and then placing phosphors over at least some of the LEDs. The phosphors are chosen to convert light emitted by the LEDs to one or more different colors. The LEDs may be lithographically printed on the substrate, and the phosphors may be lithographically printed on the LEDs.

Abstract: An object is to provide a semiconductor device of which a manufacturing process is not complicated and by which cost can be suppressed, by forming a thin film transistor using an oxide semiconductor film typified by zinc oxide, and a manufacturing method thereof. For the semiconductor device, a gate electrode is formed over a substrate; a gate insulating film is formed covering the gate electrode; an oxide semiconductor film is formed over the gate insulating film; and a first conductive film and a second conductive film are formed over the oxide semiconductor film. The oxide semiconductor film has at least a crystallized region in a channel region.

Abstract: Methods and systems relating to solid state light sources for use in industrial processes.

Abstract: In a light emitting device, a variation in intensity caused by varying a threshold value of a TFT for supplying a current to a light emitting element for each pixel becomes a burden to an improvement of an image quality of the light emitting device. A voltage equal to the threshold value of a TFT (106) is held in capacitor unit (109). When a video signal is inputted from a source signal line, the voltage held in the capacitor unit is added thereto and a resultant signal is applied to a gate electrode of the TFT (106). Even when a threshold value is varied for each pixel, each threshold value is held in the capacitor unit (109) for each pixel. Thus, the influence of a variation in threshold value can be eliminated. Further, holding of the threshold value is conducted by only the capacitor unit (109) and a charge does not move at writing of a video signal so that a voltage between both electrodes is not changed. Thus, it is not influenced by a variation in capacitance value.

Abstract: An organic electro luminescence display comprises a pixel portion on which a plurality of pixels are arranged with a first electrode, a second electrode, and an organic thin film layer interposed between the first and second electrodes, a first power line supplying a first level voltage to the pixels of the pixel portion; and a second power line having at least a region overlapped with the second electrode to supply a second level voltage to the second electrode, and an insulating layer having a plurality of contact holes in the overlapped region between the second power line and the second electrode. The sum of the circumferences of each contact hole is greater than the circumference of the overlapped region.

Abstract: An LED bare chip which is one type of a semiconductor light emitting device (2) includes a multilayer epitaxial structure (6) composed of a p-GaN layer (12), an InGaN/GaN MQW light emitting layer (14) and an n-GaN layer (16). A p-electrode (18) is formed on the p-GaN layer (12), and an n-electrode (20) is formed on the n-GaN layer (16). An Au plating layer (4) is formed on the p-electrode (18). The Au plating layer (4) supports the multilayer epitaxial structure (6) and conducts heat generated in the light emitting layer (14). The Au plating layer (4) is electrically divided into two portions by a polyimide member (10). One of the two portions (4A) is connected to the p-electrode (18), to be constituted as an anode power supply terminal, and the other portion (4K) is connected to the n-electrode (20) by a wiring (22), to be constituted as a cathode power supply terminal.

Abstract: An electroluminescent device comprising a first electrode and a second electrode having an EL unit formed there-between, wherein the EL unit comprises a light-emitting layer containing quantum dots, and the first and second electrodes define one or more light-emitting areas; wherein at least a portion of the second electrode is transparent and light emitted by the EL unit is viewed from a first side of the electroluminescent device that is nearer the second electrode; and one or more reflective elements that are electrically-conductive and are formed as part of the second electrode or in electrical communication with the second electrode; and wherein the reflective elements are located at least partially within the light emitting areas.

Abstract: An organic electroluminescent device includes a plurality walls intersecting with anode electrode layers and a plurality of mask supporting members formed between the anode electrode layers. A method for manufacturing the organic electroluminescent device includes: forming a plurality of anode electrode layers on a substrate; forming an insulating layer on the area except for predetermined areas of the anode electrode layers; forming a plurality of walls intersecting with each of the anode electrode layers; forming a plurality of mask supporting members, each formed on a predetermined area between the anode electrode layers; and forming organic EL layers and a plurality of cathode electrode layers by using a mask. The plurality of mask supporting members assists in preventing the walls and organic material layers from being damaged by the mask during the process of forming the organic EL layers and cathode electrode layers.

Abstract: An organic LED display apparatus comprises a substrate and an upper cover. The substrate comprises a display area, a plurality of inner leads and a plurality of outer leads. The upper cover overlays the display area and the plurality of inner leads, and is hermetically combined with the substrate by means of an encapsulating material. The plurality of outer leads is covered with an insulating material that is laid on the outer leads immediately after they are formed on the substrate. Therefore, the plurality of outer leads can be protected from scratches and damage.

Abstract: A display device for increasing a lifetime includes a base substrate having a plurality of pixel regions, a plurality of first electrodes formed on the pixel regions, a light emitting layer including first, second and third light emitting portions to generate first, second and third lights, a second electrode that is electrically coupled to the light emitting layer. At least two of the first, second and third light emitting portions have different areas from each other. The areas of the light emitting portions are determined by reference lifetimes. Therefore, the lifetime for the display device is increased.

Abstract: An invention relates to an organic electroluminescent display. The organic electroluminescent display comprises a substrate, a bonding pad, and an FPC (Flexible Print Circuit). The substrate comprises a luminescent surface and a non-luminescent surface. An organic electroluminescent (EL) structure is disposed on the non-luminescent surface to provide the organic EL structure to electrically connect to an outer circuit. The FPC, disposed on the same side of the organic electroluminescent structure, comprises a junction portion and a main portion, in which the main portion connects to the junction portion and electrically connects to the outer circuit. The junction portion is adapted to connect to the bonding pad and the main portion is directly extended to the direction toward the organic electroluminescent structure.

Abstract: It is an object of the invention to provide a light emitting device in which burden on a light emitting element having low luminous efficiency is relieved, and the deterioration of a light emitting element, the reduction in color reproduction due to the deteriorated light emitting element, and increase in electric power consumption can be suppressed. A light emitting device according to the invention has light emitting elements each of which emits one of colors corresponding to three primary colors. Further, one feature of the light emitting device according to the invention has a light emitting element which emits a neutral color. The light emitting device according to the invention has a structure in which a plurality of pixels having light emitting elements each of which emits one of colors corresponding to three primary colors, and a light emitting element which emits a neutral color as one group, are arranged.