Display panel, information processing device

Abstract

The present invention provides a display panel. The display panel has a display region, an insulating film, and a sealing film, wherein the display region is provided with pixels, and each pixel is provided with a display element and a color conversion layer. The insulating film covers the display elements. The sealing film is provided with a region that, together with the insulating film, sandwiches the color conversion layer. The sealing film is also provided with a region in contact with the insulating film outside of the display region. Each display element is provided with a first layer, a second layer, a third layer, and a fourth layer. The first layer includes a first material and a second material. The second layer includes a third material. The third layer includes a luminescent material and a fourth material. The fourth layer includes a fifth material and a sixth material. The first material is provided with a HOMO level between -5.7 eV to -5.4 eV inclusive. The second material is provided with an acceptor property. The third material is provided with a HOMO level smaller than that of the first material. The fourth material is provided with a HOMO level smaller than that of the third material. The fifth material is provided with a HOMO level of -6.0 eV or more. The sixth material is an organic complex of an alkali metal or an alkaline earth metal.

Description

[Technical Field]

[0001] One embodiment of the present invention relates to a display panel, a data processing device, or a semiconductor device.

[0002] Note that one embodiment of the present invention is not limited to the above technical field. The technical field of one embodiment of the invention disclosed in this specification relates to an object, a method, or a manufacturing method. Alternatively, one embodiment of the present invention relates to a process, a machine, a manufacture, or a composition of matter. Therefore, more specifically, examples of the technical field of one embodiment of the present invention disclosed in this specification include a semiconductor device, a display device, a light-emitting device, a power storage device, a memory device, a driving method thereof, or a manufacturing method thereof. [Background technology]

[0003] Light-emitting devices (organic EL elements) that utilize electroluminescence (EL) using organic compounds are becoming more and more common. The basic structure of these light-emitting devices is a pair of electrodes sandwiching an organic compound layer (EL layer) containing a light-emitting substance between them. By applying a voltage to this element, carriers are injected, and the recombination energy of these carriers is utilized to emit light from the light-emitting substance.

[0004] Because such light-emitting devices are self-luminous, when used as display pixels, they offer advantages such as higher visibility than liquid crystals and no need for backlighting, making them suitable for use as flat panel display elements. Another major advantage of displays using such light-emitting devices is that they can be fabricated to be thin and lightweight. Another feature is their extremely fast response time.

[0005] Furthermore, these light-emitting devices can emit light continuously in two dimensions, making it possible to obtain surface light emission. This is a feature that is difficult to obtain with point light sources such as incandescent bulbs and LEDs, or linear light sources such as fluorescent lamps, making them highly useful as surface light sources for lighting applications.

[0006] Displays and lighting devices using such light-emitting devices are suitable for use in a variety of electronic devices, but research and development is ongoing to find light-emitting devices with better efficiency and lifespan.

[0007] Patent Document 1 discloses a configuration in which a hole-transporting material having a HOMO (Highest Occupied Molecular Orbital) level between the HOMO level of the first hole-injection layer and the HOMO level of the host material is provided between a first hole-transporting layer in contact with the hole-injection layer and an emitting layer.

[0008] Although the properties of light-emitting devices have improved dramatically, they are still insufficient to meet the high demands for efficiency, durability, and all other properties. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] International Publication No. 2011 / 065136 Brochure Summary of the Invention [Problem to be solved by the invention]

[0010] An object of one embodiment of the present invention is to provide a novel display panel with excellent convenience or reliability, a novel data processing device with excellent convenience or reliability, or a novel display panel, a novel data processing device, or a novel semiconductor device.

[0011] Note that the description of these problems does not preclude the existence of other problems. Note that one embodiment of the present invention does not necessarily solve all of these problems. Note that problems other than these will become apparent from the description in the specification, drawings, claims, etc., and it is possible to extract other problems from the description in the specification, drawings, claims, etc. [Means for solving the problem]

[0012] (1) One embodiment of the present invention is a display panel including a display region, an insulating film, and a sealing film.

[0013] The display area includes a first pixel, and the first pixel includes a first display element and a first color conversion layer.

[0014] The first color conversion layer has an area that overlaps with the first display element, and the first color conversion layer converts the first light into second light, and the second light has a spectrum that contains a higher proportion of light with longer wavelengths than the first light.

[0015] The insulating film 573 covers the first display element, the sealing film has a region where the first color conversion layer is sandwiched between the insulating film and the sealing film, and the sealing film has a region in contact with the insulating film outside the display region.

[0016] The first display element emits a first light, and the first display element includes a first layer, a second layer, a third layer, and a fourth layer.

[0017] The third layer is sandwiched between the second and fourth layers, and the second layer is sandwiched between the first and third layers.

[0018] The first layer includes a first material and a second material, the second layer includes a third material, the third layer includes a light-emitting material and a fourth material, and the fourth layer includes a fifth material and a sixth material.

[0019] The first material has a HOMO level of −5.7 eV or more and −5.4 eV or less, and the second material has acceptor properties.

[0020] The third material has a lower HOMO level than the first material, and the fourth material has a lower HOMO level than the third material.

[0021] The fifth material has a HOMO level of −6.0 eV or higher, and the sixth material is an organic complex of an alkali metal or an organic complex of an alkaline earth metal.

[0022] (2) In one aspect of the present invention, the fifth material has an electron mobility of 1×10 when the square root of the electric field strength [V / cm] is 600. -7 cm 2 / Vs or more 5×10 -5 cm 2 The display panel has a voltage of 0.1 V or less.

[0023] This makes it possible to suppress the deterioration of display quality that occurs after the start of use. Alternatively, it makes it possible to suppress the deterioration of color reproducibility that occurs after the start of use. Alternatively, it makes it possible to suppress the deterioration of brightness that occurs after the start of use. Alternatively, it makes it possible to suppress the intrusion of impurities from the outside that degrade characteristics. Alternatively, it makes it possible to display vivid colors. Alternatively, it makes it possible to achieve excellent productivity. As a result, it is possible to provide a novel display panel that is excellent in convenience and reliability.

[0024] (3) Another aspect of the present invention is the display panel described above, wherein the first color conversion layer contains quantum dots and a light-transmitting resin.

[0025] This makes it possible to narrow the spectral width of the second light h2. Alternatively, light with a narrow spectral half-width can be used. Alternatively, highly saturated colors can be displayed. Alternatively, aggregation of quantum dots can be prevented. As a result, a novel display panel with excellent convenience and reliability can be provided.

[0026] (4) Another embodiment of the present invention is the display panel described above, wherein the first light is blue light.

[0027] This allows blue light to be converted into green light, or blue light to be converted into red light, or blue light to be converted into light with a longer wavelength. As a result, a novel display panel with excellent convenience and reliability can be provided.

[0028] (5) Another embodiment of the present invention is the above-described display panel, wherein the first display element includes a first light-emitting unit, a second light-emitting unit, and an intermediate layer.

[0029] The intermediate layer has a region sandwiched between the first light-emitting unit and the second light-emitting unit, and has the function of supplying holes to either the first light-emitting unit or the second light-emitting unit, and supplying electrons to the other.

[0030] The first light-emitting unit emits blue light, and the second light-emitting unit also emits blue light.

[0031] This makes it possible to improve luminous efficiency or reduce power consumption, and as a result, provide a novel display panel that is highly convenient and reliable.

[0032] (6) Another aspect of the present invention is the display panel described above, which includes the functional layer 520.

[0033] The functional layer has an area overlapping the display element, the functional layer includes a first pixel circuit, and the functional layer has an opening.

[0034] The first pixel includes a first pixel circuit, and the first pixel circuit is electrically connected to the first display element in the opening.

[0035] This makes it possible to control the operation of the display element, thereby providing a novel display panel that is highly convenient and reliable.

[0036] (7) Another embodiment of the present invention is a display panel in which the display region 231 includes a second pixel and a third pixel.

[0037] The first pixel displays red.

[0038] The second pixel displays green, and the second pixel includes a second color conversion layer.

[0039] The third pixel displays blue.

[0040] The first color conversion layer converts blue light to red light, and the second color conversion layer converts blue light to green light.

[0041] This makes it possible to display a full-color image. Alternatively, the decrease in brightness of the display element that occurs after the start of use can be made to be the same for multiple pixels that display different colors. Alternatively, the deterioration of the display element that occurs with use can be made to be the same. Alternatively, the decrease in color reproducibility that occurs after the start of use can be suppressed. As a result, a novel display panel that is excellent in convenience and reliability can be provided.

[0042] (8) Another aspect of the present invention is an information processing device including one or more of a keyboard, hardware buttons, a pointing device, a touch sensor, an illuminance sensor, an imaging device, a voice input device, an eye-gaze input device, and a posture detection device, and the above-mentioned display panel.

[0043] In the drawings accompanying this specification, components are classified by function and shown as independent blocks in block diagrams, but in reality, it is difficult to completely separate components by function, and one component may be involved in multiple functions.

[0044] In this specification, the names of the source and drain of a transistor are interchangeable depending on the polarity of the transistor and the level of the potential applied to each terminal. Generally, in an n-channel transistor, the terminal to which a low potential is applied is called the source, and the terminal to which a high potential is applied is called the drain. In a p-channel transistor, the terminal to which a low potential is applied is called the drain, and the terminal to which a high potential is applied is called the source. For convenience, in this specification, the connection relationship of a transistor may be described assuming that the source and drain are fixed, but in reality, the names of the source and drain are interchangeable depending on the above-mentioned potential relationship.

[0045] In this specification, the source of a transistor refers to a source region that is part of a semiconductor film that functions as an active layer, or a source electrode connected to the semiconductor film. Similarly, the drain of a transistor refers to a drain region that is part of the semiconductor film, or a drain electrode connected to the semiconductor film. Furthermore, the gate refers to a gate electrode.

[0046] In this specification, a state in which transistors are connected in series means, for example, a state in which only one of the source or drain of a first transistor is connected to only one of the source or drain of a second transistor, and a state in which transistors are connected in parallel means a state in which one of the source or drain of a first transistor is connected to one of the source or drain of a second transistor, and the other of the source or drain of the first transistor is connected to the other of the source or drain of the second transistor.

[0047] In this specification, "connection" means an electrical connection, and corresponds to a state in which a current, voltage, or potential can be supplied or transmitted. Therefore, a connected state does not necessarily refer to a direct connection, but also includes a state in which a current, voltage, or potential can be supplied or transmitted via a circuit element such as a wiring, resistor, diode, or transistor.

[0048] In this specification, even when components that appear independent on a circuit diagram are connected to each other, in reality, one conductive film may have the functions of multiple components, for example, when part of a wiring functions as an electrode. In this specification, the term "connection" also includes such cases where one conductive film has the functions of multiple components.

[0049] In this specification, one of a first electrode and a second electrode of a transistor refers to a source electrode, and the other refers to a drain electrode. [Effects of the Invention]

[0050] According to one embodiment of the present invention, a novel display panel with excellent convenience or reliability can be provided. Alternatively, a novel data processing device with excellent convenience or reliability can be provided. Alternatively, a novel display panel, a novel data processing device, or a novel semiconductor device can be provided.

[0051] Note that the description of these effects does not preclude the existence of other effects. Note that one embodiment of the present invention does not necessarily have all of these effects. Note that effects other than these will become apparent from the description in the specification, drawings, claims, etc., and it is possible to extract other effects from the description in the specification, drawings, claims, etc. [Brief explanation of the drawings]

[0052] 1A to 1C are diagrams illustrating the configuration of a display panel according to an embodiment. 2A and 2B are diagrams illustrating the configuration of a display panel according to an embodiment. 3A and 3B are diagrams illustrating the configuration of a display panel according to an embodiment. 4A and 4B are diagrams illustrating the configuration of a display panel according to an embodiment. 5A and 5B are diagrams illustrating the configuration of a display element of a display panel according to an embodiment. FIG. 6 is a block diagram illustrating the configuration of a display panel according to the embodiment. 7A to 7D are diagrams illustrating the configuration of a display device according to an embodiment. FIG. 8 is a block diagram illustrating the configuration of the input / output device according to the embodiment. 9A to 9C are block diagrams and projection diagrams illustrating the configuration of an information processing device according to an embodiment. 10A and 10B are flowcharts illustrating a method for driving an information processing device according to an embodiment. 11A to 11C are diagrams illustrating a method for driving an information processing device according to an embodiment. 12A to 12E are diagrams illustrating the configuration of an information processing device according to an embodiment. 13A to 13E are diagrams illustrating the configuration of an information processing device according to an embodiment. 14A and 14B are diagrams illustrating the configuration of an information processing device according to an embodiment. FIG. 15 is a diagram illustrating an electronic device. DETAILED DESCRIPTION OF THE INVENTION

[0053] A display panel according to one embodiment of the present invention includes a display region, an insulating film, and a sealing film. The display region includes pixels, each of which includes a display element and a color conversion layer. The color conversion layer has a region overlapping with the display element, and the color conversion layer converts first light into second light. The second light has a spectrum containing a higher proportion of light with longer wavelengths than the first light h1. The insulating film covers the display element, and the sealing film has a region sandwiching the color conversion layer between the insulating film and the sealing film, and the sealing film has a region outside the display region in contact with the insulating film. The display element emits the first light, and the display element includes a first layer, a second layer, a third layer, and a fourth layer, with the third layer sandwiched between the first layer and the fourth layer, and the second layer sandwiched between the first layer and the third layer. The first layer includes a first material and a second material, the second layer includes a third material, the third layer includes a light-emitting material and a fourth material, the fourth layer includes a fifth material and a sixth material, the first material has a HOMO level of -5.7 eV or more and -5.4 eV or less, the second material has acceptor properties, the third material has a HOMO level lower than that of the first material, the fourth material HOST has a HOMO level lower than that of the third material, and the sixth material is an organic complex of an alkali metal or an organic complex of an alkaline earth metal.

[0054] This makes it possible to suppress the deterioration of display quality that occurs after the start of use. Alternatively, it makes it possible to suppress the deterioration of color reproducibility that occurs after the start of use. Alternatively, it makes it possible to suppress the deterioration of brightness that occurs after the start of use. Alternatively, it makes it possible to suppress the intrusion of impurities from the outside that degrade characteristics. Alternatively, it makes it possible to display vivid colors. Alternatively, it makes it possible to achieve excellent productivity. As a result, it is possible to provide a novel display panel that is excellent in convenience and reliability.

[0055] The embodiments will be described in detail with reference to the drawings. However, the present invention is not limited to the following description, and it will be readily understood by those skilled in the art that various changes in form and details can be made without departing from the spirit and scope of the present invention. Therefore, the present invention should not be interpreted as being limited to the description of the embodiments shown below. In the configuration of the invention described below, the same parts or parts having similar functions will be denoted by the same reference numerals in different drawings, and repeated explanations will be omitted.

[0056] (Embodiment 1) In this embodiment, a structure of a display panel according to one embodiment of the present invention will be described with reference to FIGS.

[0057] 1A and 1B illustrate a structure of a display panel according to one embodiment of the present invention, in which Fig. 1A is a top view of a display panel according to one embodiment of the present invention, and Figs. 1B and 1C illustrate a part of Fig. 1A.

[0058] 2A and 2B are cross-sectional views illustrating the configuration of a display panel according to one embodiment of the present invention, taken along lines X1-X2, X3-X4, and X9-X10 in FIG. 1A and taken along lines X1-X2, X3-X4, and X9-X10 in FIG. 1A, and a pixel, respectively, and FIG. 2B is a circuit diagram illustrating the configuration of a pixel circuit 530(i, j).

[0059] 3A and 3B illustrate a structure of a display panel according to one embodiment of the present invention, in which Fig. 3A is a cross-sectional view of a pixel 702(i,j) in Fig. 1A, and Fig. 3B is a cross-sectional view illustrating a part of Fig. 3A.

[0060] 4A and 4B are diagrams illustrating the configuration of a display panel according to one embodiment of the present invention, in which Fig. 4A is a cross-sectional view taken along the lines X1-X2 and X3-X4 in Fig. 1A, and Fig. 4B is a cross-sectional view illustrating a portion of Fig. 4A.

[0061] 5A and 5B are cross-sectional views illustrating the structure of a display panel according to one embodiment of the present invention, each illustrating the structure of a display element 550(i, j).

[0062] In this specification, variables that take on integer values ​​of 1 or greater may be used in codes. For example, (p) including a variable p that takes on an integer value of 1 or greater may be used as part of a code that identifies any one of up to p components. Also, for example, (m, n) including variables m and n that take on integer values ​​of 1 or greater may be used as part of a code that identifies any one of up to m×n components.

[0063] <Configuration Example 1 of Display Panel 700> The display panel described in this embodiment includes a display region 231, an insulating film 573, and a sealing film 574 (see FIGS. 1A and 2A).

[0064] <<Configuration Example 1 of Display Area 231>> The display area 231 includes pixels 702(i,j).

[0065] <<Configuration Example 1 of Pixel 702(i,j)>> Pixel 702(i,j) includes a display element 550(i,j) and a color conversion layer CC(j) (see FIGS. 2A and 3A).

[0066] <<Configuration Example 1 of Color Conversion Layer CC(j)>> Color conversion layer CC(j) has an area that overlaps with display element 550(i,j) (see FIGS. 2A and 3A).

[0067] The color conversion layer CC(j) has the function of converting the first light h1 into the second light h2, which has a spectrum that includes a higher proportion of light with longer wavelengths than the first light h1.

[0068] <Configuration Example 1 of Insulating Film 573> An insulating film 573 covers the display element 550(i,j).

[0069] <Configuration Example 1 of Sealing Film 574> Sealing film 574 has a region that sandwiches color conversion layer CC(j) between itself and insulating film 573 (see FIG. 3A).

[0070] The sealing film 574 has a region outside the display region 231 that contacts the insulating film 573 (see FIG. 4A). For example, a film with low moisture permeability can be used for the sealing film 574 and the insulating film 573. Specifically, silicon nitride can be used for the sealing film 574 and the insulating film 573. Furthermore, a region where the sealing film 574 and the insulating film 573 contact each other can be formed outside the display region 231.

[0071] Configuration Example 1 of Display Element 550(i,j) Display element 550(i,j) emits a first light h1 (see FIG. 5A). For example, electrode 551(i,j), electrode 552, and layer 553(j) including a light-emitting material can be used for display element 550(i,j).

[0072] The first display element 550(i,j) includes a layer 111, a layer 112, a layer 113, and a layer 114. The layers 111, 112, 113, and 114 can be formed using various known film formation methods. For example, they can be formed using a vacuum deposition method or a printing method. Specifically, they can be formed using a resistance heating vacuum deposition method, an inkjet method, or the like.

[0073] Layer 113 is sandwiched between layers 112 and 114. Layer 112 is sandwiched between layers 111 and 113.

[0074] Layer 111 includes material HT1 and material AM.

[0075] Layer 112 comprises material HT2.

[0076] Layer 113 includes luminescent material EM and material HOST.

[0077] Layer 114 includes material ET and material OMC.

[0078] [Material HT1] The material HT1 has a HOMO level of -5.7 eV or more and -5.4 eV or less. For example, a hole-transporting material having hole-transporting properties is preferable, and a material having any of a carbazole skeleton, a dibenzofuran skeleton, a dibenzothiophene skeleton, and an anthracene skeleton can be used for the material HT. Alternatively, the material HT can be an aromatic amine having a substituent containing a dibenzofuran ring or a dibenzothiophene ring, an aromatic monoamine having a naphthalene ring, or an aromatic monoamine in which a 9-fluorenyl group is bonded to the nitrogen of the amine via an arylene group. This facilitates the injection of holes into the layer 112.

[0079] Specific examples of compounds that can be used for the material HT1 include N-(4-biphenyl)-6,N-diphenylbenzo[b]naphtho[1,2-d]furan-8-amine (abbreviation: BnfABP), N,N-bis(4-biphenyl)-6-phenylbenzo[b]naphtho[1,2-d]furan-8-amine (abbreviation: BBABnf), 4,4'-bis(6-phenylbenzo[b]naphtho[1,2-d]furan-8-yl-4''-phenyltriphenylamine (abbreviation: BnfBB1BP), N,N-bis(4-biphenyl)benzo[ b]naphtho[1,2-d]furan-6-amine (abbreviation: BBABnf(6)), N,N-bis(4-biphenyl)benzo[b]naphtho[1,2-d]furan-8-amine (abbreviation: BBABnf(8)), N,N-bis(4-biphenyl)benzo[b]naphtho[2,3-d]furan-4-amine (abbreviation: BBABnf(II)(4)), N,N-bis[4-(dibenzofuran-4-yl)phenyl]-4-amino-p-terphenyl (abbreviation: DBfBB1TP), N-[4-(dibenzothiophen-4-yl)phenyl]- N-phenyl-4-biphenylamine (abbreviation: ThBA1BP), 4-(2-naphthyl)-4',4''-diphenyltriphenylamine (abbreviation: BBAβNB), 4-[4-(2-naphthyl)phenyl]-4',4''-diphenyltriphenylamine (abbreviation: BBAβNBi), 4,4'-diphenyl-4''-(6;1'-binaphthyl-2-yl)triphenylamine (abbreviation: BBAαNβNB), 4,4'-diphenyl-4''-(7;1'-binaphthyl-2-yl)triphenylamine (abbreviation: BBAαNβN B-03), 4,4'-diphenyl-4''-(7-phenyl)naphthyl-2-yltriphenylamine (abbreviated as BBAPβNB-03), 4,4'-diphenyl-4''-(6;2'-binaphthyl-2-yl)triphenylamine (abbreviated as BBA(βN2)B), 4,4'-diphenyl-4''-(7;2'-binaphthyl-2-yl)triphenylamine (abbreviated as BBA(βN2)B-03), 4,4'-diphenyl-4''-(4;2'-binaphthyl-1-yl)triphenylamine (abbreviated as BBAβNαNB), 4,4'-Diphenyl-4''-(5;2'-binaphthyl-1-yl)triphenylamine (abbreviation: BBAβNαNB-02), 4-(4-biphenylyl)-4'-(2-naphthyl)-4''-phenyltriphenylamine (abbreviation: TPBiAβNB), 4-(3-biphenylyl)-4'-[4-(2-naphthyl)phenyl]-4''-phenyltriphenylamine (abbreviation: mTPBiAβNBi), 4-(4-biphenylyl)-4'-[4-(2-naphthyl)phenyl]-4 ''-Phenyltriphenylamine (abbreviation: TPBiAβNBi), 4-phenyl-4'-(1-naphthyl)triphenylamine (abbreviation: αNBA1BP), 4,4'-bis(1-naphthyl)triphenylamine (abbreviation: αNBB1BP), 4,4'-diphenyl-4''-[4'-(carbazol-9-yl)biphenyl-4-yl]triphenylamine (abbreviation: YGTBi1BP), 4'-[4-(3-phenyl-9H-carbazol-9-yl)phenyl]tris(1 ,1'-biphenyl-4-yl)amine (abbreviation: YGTBi1BP-02), 4-diphenyl-4'-(2-naphthyl)-4''-{9-(4-biphenylyl)carbazole)}triphenylamine (abbreviation: YGTBiβNB), N-[4-(9-phenyl-9H-carbazol-3-yl)phenyl]-N-[4-(1-naphthyl)phenyl]-9,9'-spirobi(9H-fluorene)-2-amine (abbreviation: PCBNBSF), N,N-bis(4-biphenylyl)-9 ,9'-Spirobi[9H-fluorene]-2-amine (abbreviation: BBASF), N,N-bis(1,1'-biphenyl-4-yl)-9,9'-spirobi[9H-fluorene]-4-amine (abbreviation: BBASF(4)), N-(1,1'-biphenyl-2-yl)-N-(9,9-dimethyl-9H-fluoren-2-yl)-9,9'-spirobi(9H-fluorene)-4-amine (abbreviation: oFBiSF), N-(4-biphenyl)-N-(dibenzofuran-4-yl)-9,9-Dimethyl-9H-fluoren-2-amine (abbreviation: FrBiF), N-[4-(1-naphthyl)phenyl]-N-[3-(6-phenyldibenzofuran-4-yl)phenyl]-1-naphthylamine (abbreviation: mPDBfBNBN), 4-phenyl-4'-(9-phenylfluoren-9-yl)triphenylamine (abbreviation: BPAFLP), 4-phenyl-3'-(9-phenylfluoren-9-yl)triphenylamine (abbreviation: mBPAFLP), 4-phenyl-4'-[4-(9-phenylfluoren-9-yl)phenyl]triphenylamine (abbreviation: BPAFLBi), 4-phenyl-4'-(9-phenyl-9H-carbazol-3-yl)triphenylamine (abbreviation: PCBA1BP), 4,4'-diphenyl-4''-(9- Examples include phenyl-9H-carbazol-3-yl)triphenylamine (abbreviation: PCBBiBP), 4-(1-naphthyl)-4'-(9-phenyl-9H-carbazol-3-yl)triphenylamine (abbreviation: PCBANB), 4,4'-di(1-naphthyl)-4''-(9-phenyl-9H-carbazol-3-yl)triphenylamine (abbreviation: PCBNBB), N-phenyl-N-[4-(9-phenyl-9H-carbazol-3-yl)phenyl]spiro-9,9'-bifluoren-2-amine (abbreviation: PCBASF), and N-(1,1'-biphenyl-4-yl)-9,9-dimethyl-N-[4-(9-phenyl-9H-carbazol-3-yl)phenyl]-9H-fluoren-2-amine (abbreviation: PCBBiF).

[0080] [Material AM] The material AM has acceptor properties. For example, an organic compound having an electron-withdrawing group (especially a halogen group such as a fluoro group or a cyano group) may be used as the material AM, and a substance that exhibits electron-accepting properties toward the material HT1 may be appropriately selected. Examples of such organic compounds include 7,7,8,8-tetracyano-2,3,5,6-tetrafluoroquinodimethane (abbreviation: F4-TCNQ), chloranil, 2,3,6,7,10,11-hexacyano-1,4,5,8,9,12-hexaazatriphenylene (abbreviation: HAT-CN), 1,3,4,5,7,8-hexafluorotetracyano-naphthoquinodimethane (abbreviation: F6-TCNNQ), 2-(7-dicyanomethylene-1,3,4,5,6,8,9,10-octafluoro-7H-pyren-2-ylidene)malononitrile, etc. In particular, compounds such as HAT-CN in which an electron-withdrawing group is bonded to a fused aromatic ring having multiple heteroatoms are preferred because they are thermally stable. Radialene derivatives having electron-withdrawing groups (especially halogen groups such as fluoro groups or cyano groups) are also preferred because of their extremely high electron-accepting properties. Specific examples include α,α',α''-1,2,3-cyclopropanetriylidene tris[4-cyano-2,3,5,6-tetrafluorobenzeneacetonitrile], α,α',α''-1,2,3-cyclopropanetriylidene tris[2,6-dichloro-3,5-difluoro-4-(trifluoromethyl)benzeneacetonitrile], and α,α',α''-1,2,3-cyclopropanetriylidene tris[2,3,4,5,6-pentafluorobenzeneacetonitrile].

[0081] [Material HT2] HT2 has a HOMO level lower than that of material HT1. For example, a material appropriately selected from the compounds exemplified above as compounds that can be used for material HT1 can be used for material HT2.

[0082] [Material HOST] Also, the material HOST has a lower HOMO level than the material HT2.

[0083] For example, various carrier transport materials such as electron transport materials, hole transport materials, or the above-mentioned TADF materials can be used for the material HOST. Specific examples of hole transport materials, electron transport materials, etc. include materials described in this specification and known materials, and one or more of these materials can be used as appropriate.

[0084] [Emitting Materials EM] For example, materials that emit fluorescence (fluorescent materials), materials that emit phosphorescence (phosphorescent materials), thermally activated delayed fluorescence (TADF) materials that exhibit thermally activated delayed fluorescence, and other luminescent materials can be used as the luminescent material EM.

[0085] [Material ET] Material ET has a HOMO level of -6.0 eV or higher. Also, material ET has an electron mobility of 1×10 at a square root of an electric field strength [V / cm] of 600. -7 cm 2 / Vs or more 5×10 -5 cm 2 / Vs or less.

[0086] For example, a compound having an anthracene skeleton can be used as the material ET, and it is more preferable that the material ET contains both an anthracene skeleton and a heterocyclic skeleton. Furthermore, the heterocyclic skeleton is preferably a nitrogen-containing five-membered ring skeleton. The nitrogen-containing five-membered ring skeleton is particularly preferably a nitrogen-containing five-membered ring skeleton containing two heteroatoms in the ring, such as a pyrazole ring, an imidazole ring, an oxazole ring, or a thiazole ring.

[0087] [Material OMC] The material OMC is an organic complex of an alkali metal or an organic complex of an alkaline earth metal. For example, an organic complex of lithium is preferred, and 8-hydroxyquinolinato-lithium (abbreviated as Liq) is particularly preferred.

[0088] Anions may be generated in a layer closer to layer 114 than layer 113. Alternatively, after the start of use, display element 550(i,j) may be deteriorated by anions. Alternatively, the luminance of display element 550(i,j) may decrease.

[0089] This makes it possible to suppress the deterioration of display quality that occurs after the start of use. Alternatively, it makes it possible to suppress the deterioration of color reproducibility that occurs after the start of use. Alternatively, it makes it possible to suppress the deterioration of brightness that occurs after the start of use. Alternatively, it makes it possible to suppress the intrusion of impurities that degrade characteristics from the outside. Alternatively, it makes it possible to display vivid colors. Alternatively, it makes it possible to achieve excellent productivity. As a result, it is possible to provide a novel display panel that is excellent in convenience and reliability.

[0090] <<Configuration Example 2 of Color Conversion Layer CC(j)>> The color conversion layer CC(j) includes quantum dots and a light-transmitting resin (see FIG. 3A). For example, the quantum dots can be coated with a light-transmitting resin that does not generate gas. Alternatively, a resin polymerized with the quantum dots can be used. Alternatively, a photosensitive polymer can be used to coat the quantum dots. Using a photosensitive polymer allows for the formation of a fine color conversion layer CC(j).

[0091] This makes it possible to narrow the spectral width of the second light h2. Alternatively, light with a narrow spectral half-width can be used. Alternatively, highly saturated colors can be displayed. Alternatively, aggregation of quantum dots can be prevented. As a result, a novel display panel with excellent convenience and reliability can be provided.

[0092] Configuration Example 2 of Display Element 550(i,j) Display element 550(i,j) emits blue light as the first light h1.

[0093] This allows blue light to be converted into green light, or blue light to be converted into red light, or blue light to be converted into light with a longer wavelength. As a result, a novel display panel with excellent convenience and reliability can be provided.

[0094] <<Configuration Example 3 of Display Element 550(i,j)>> Display element 550(i,j) includes light-emitting unit 103a, light-emitting unit 103b, and intermediate layer 104 (see FIG. 5B).

[0095] Intermediate layer 104 has a region sandwiched between light-emitting unit 103a and light-emitting unit 103b. Intermediate layer 104 supplies holes to either light-emitting unit 103a or light-emitting unit 103b, and supplies electrons to the other light-emitting unit.

[0096] The light-emitting unit 103a emits blue light, and the light-emitting unit 103b also emits blue light.

[0097] This makes it possible to improve the luminous efficiency or reduce the power consumption, thereby providing a novel display panel that is highly convenient and reliable.

[0098] <Configuration Example 2 of Display Panel 700> The display panel described in this embodiment has a functional layer 520 .

[0099] <<Configuration Example 1 of Functional Layer 520>> The functional layer 520 has an area that overlaps with the display element 550(i,j).

[0100] The functional layer 520 includes a pixel circuit 530(i,j). The functional layer 520 also includes an opening 591A.

[0101] <<Configuration Example 1 of Pixel 702(i,j)>> The pixel 702(i,j) includes a pixel circuit 530(i,j).

[0102] Configuration Example 1 of Pixel Circuit 530(i,j) The pixel circuit 530(i,j) is electrically connected to the first display element 550(i,j) at the opening 591A.

[0103] This makes it possible to control the operation of the display element, thereby providing a novel display panel that is highly convenient and reliable.

[0104] <<Configuration Example 2 of Display Area 231>> The display area 231 includes a pixel 702(i,j+1) and a pixel 702(i,j+2).

[0105] Pixel 702(i,j) displays red.

[0106] The pixel 702(i, j+1) displays green and is equipped with a second color conversion layer CC(j+1).

[0107] Pixel 702(i,j+2) displays blue.

[0108] The color conversion layer CC(j) converts blue light into red light.

[0109] The color conversion layer CC(j+1) converts blue light into green light.

[0110] This makes it possible to display a full-color image. Alternatively, the decrease in brightness of the display element that occurs after the start of use can be made to be the same for multiple pixels that display different colors. Alternatively, the deterioration of the display element that occurs with use can be made to be the same. Alternatively, the decrease in color reproducibility that occurs after the start of use can be suppressed. As a result, a novel display panel that is excellent in convenience and reliability can be provided.

[0111] <<Configuration Example 2 of Pixel Circuit 530(i,j)>> The pixel circuit 530(i,j) includes a transistor M, a node N1(i,j), a switch SW21, a capacitor C21, a capacitor C22, and a switch SW22 (see FIG. 2B).

[0112] The transistor M has a first electrode electrically connected to the display element 550(i,j) and a second electrode electrically connected to the conductive film ANO.

[0113] The node N1(i,j) is electrically connected to the gate electrode of the transistor M. The display element 550(i,j) displays a picture based on the potential VN.

[0114] The switch SW21 has a first terminal electrically connected to the node N1(i,j) and a second terminal electrically connected to a conductive film. For example, the signal line S1(j) can be used as the conductive film. The switch SW21 has a function of switching between a conductive state and a non-conductive state based on, for example, a selection signal.

[0115] The capacitor C21 has a first electrode electrically connected to the node N1(i,j) and a second electrode electrically connected to a conductive film, for example, a conductive film ANO.

[0116] The capacitor C22 has a first electrode electrically connected to the node N1(i,j) and a second electrode electrically connected to the first terminal of the switch SW22.

[0117] The switch SW22 has a first terminal electrically connected to a conductive film. For example, the signal line S2(j) can be used as the conductive film. The switch SW22 has a function of switching between a conductive state and a non-conductive state based on, for example, a second selection signal.

[0118] When switch SW21 is in a non-conductive state, switch SW22 can be changed from a non-conductive state to a conductive state, and when switch SW21 is in a non-conductive state, switch SW22 can be changed from a conductive state to a non-conductive state.

[0119] This makes it possible to control the potential of the node N1(i,j) using the switch SW21 and the switch SW22. Alternatively, the potential of the node N1(i,j) can be controlled using the switch SW21, and the potential of the node N1(i,j) can be changed using the switch SW22. Alternatively, a changing potential can be supplied to the display element 550(i,j). Alternatively, a display can be made based on the changing potential. Alternatively, the display of the display element 550(i,j) can be changed. Alternatively, the operation of the display element 550(i,j) can be emphasized. Alternatively, the response of the display element 550(i,j) can be made faster. As a result, a novel display panel with excellent convenience and reliability can be provided.

[0120] <<Configuration Example 3 of Pixel Circuit 530(i,j)>> For example, a bottom-gate transistor or a top-gate transistor can be used in the pixel circuit 530(i,j). Specifically, a transistor can be used as a switch.

[0121] <<Example of transistor configuration>> The transistor includes a semiconductor film 508, a conductive film 504, a conductive film 512A, and a conductive film 512B (see FIG. 3B).

[0122] The semiconductor film 508 includes a region 508A electrically connected to the conductive film 512A and a region 508B electrically connected to the conductive film 512B. The semiconductor film 508 includes a region 508C between the region 508A and the region 508B.

[0123] The conductive film 504 has a region overlapping with the region 508C, and the conductive film 504 has a function of a gate electrode.

[0124] The insulating film 506 has a region sandwiched between the semiconductor film 508 and the conductive film 504. The insulating film 506 functions as a gate insulating film.

[0125] The conductive film 512A has either a function as a source electrode or a function as a drain electrode, and the conductive film 512B has the other function as a source electrode or a drain electrode.

[0126] The conductive film 524 can also be used for a transistor. The conductive film 524 has a region where the semiconductor film 508 is sandwiched between the conductive film 524 and the conductive film 504. The conductive film 524 functions as a second gate electrode.

[0127] Note that a semiconductor film used for a transistor in a driver circuit can be formed in the process of forming a semiconductor film used for a transistor in a pixel circuit.

[0128] <Configuration Example 1 of Semiconductor Film 508> For example, a semiconductor containing a Group 14 element can be used for the semiconductor film 508. Specifically, a semiconductor containing silicon can be used for the semiconductor film 508.

[0129] [Hydrogenated amorphous silicon] For example, hydrogenated amorphous silicon can be used for the semiconductor film 508. Alternatively, microcrystalline silicon or the like can be used for the semiconductor film 508. This makes it possible to provide a display panel with less display unevenness than, for example, a display panel using polysilicon for the semiconductor film 508. Alternatively, it is easy to increase the size of the display panel.

[0130] [Polysilicon] For example, polysilicon can be used for the semiconductor film 508. This allows the field-effect mobility of the transistor to be higher than that of a transistor using hydrogenated amorphous silicon for the semiconductor film 508. Alternatively, for example, the driving capability can be improved compared to a transistor using hydrogenated amorphous silicon for the semiconductor film 508. Alternatively, for example, the aperture ratio of the pixel can be improved compared to a transistor using hydrogenated amorphous silicon for the semiconductor film 508.

[0131] Alternatively, the reliability of the transistor can be improved compared to a transistor using hydrogenated amorphous silicon for the semiconductor film 508, for example.

[0132] Alternatively, the temperature required to manufacture the transistor can be lower than that of a transistor using single crystal silicon, for example.

[0133] Alternatively, a semiconductor film used for a transistor in a driver circuit can be formed in the same process as a semiconductor film used for a transistor in a pixel circuit. Alternatively, the driver circuit can be formed over the same substrate as the substrate on which the pixel circuit is formed. Alternatively, the number of components constituting an electronic device can be reduced.

[0134] [Single crystal silicon] For example, single crystal silicon can be used for the semiconductor film 508. This allows for higher definition than, for example, a display panel using hydrogenated amorphous silicon for the semiconductor film 508. Alternatively, for example, a display panel with less display unevenness can be provided than, for example, a display panel using polysilicon for the semiconductor film 508. Alternatively, for example, smart glasses or a head-mounted display can be provided.

[0135] <<Configuration Example 2 of Semiconductor Film 508>> For example, metal oxide can be used for the semiconductor film 508. This allows the pixel circuit to retain an image signal for a longer period of time compared to a pixel circuit that uses a transistor with amorphous silicon as the semiconductor film. Specifically, it is possible to supply a selection signal at a frequency of less than 30 Hz, preferably less than 1 Hz, and more preferably less than once per minute, while suppressing the occurrence of flicker. As a result, it is possible to reduce fatigue accumulated in the user of the information processing device. It is also possible to reduce power consumption associated with driving.

[0136] For example, a transistor including an oxide semiconductor can be used. Specifically, an oxide semiconductor containing indium or an oxide semiconductor containing indium, gallium, and zinc can be used for a semiconductor film.

[0137] For example, a transistor having a smaller leakage current in an off state than a transistor using amorphous silicon for its semiconductor film can be used. Specifically, a transistor using an oxide semiconductor for its semiconductor film can be used as a switch, etc. This allows the potential of a floating node to be held for a longer time than a circuit using a transistor using amorphous silicon for its switch.

[0138] For example, a 25 nm thick film containing indium, gallium, and zinc can be used for the semiconductor film 508 .

[0139] For example, a conductive film in which a 10-nm-thick film containing tantalum and nitrogen and a 300-nm-thick film containing copper are stacked can be used as the conductive film 504. Note that the copper-containing film has a region where the film containing tantalum and nitrogen is sandwiched between the insulating film 506 and the copper-containing film.

[0140] For example, a stacked film formed by stacking a 400-nm-thick film containing silicon and nitrogen and a 200-nm-thick film containing silicon, oxygen, and nitrogen can be used as the insulating film 506. Note that the film containing silicon and nitrogen has a region sandwiching the film containing silicon, oxygen, and nitrogen between itself and the semiconductor film 508.

[0141] For example, a conductive film formed by stacking a 50-nm-thick film containing tungsten, a 400-nm-thick film containing aluminum, and a 100-nm-thick film containing titanium in this order can be used as the conductive film 512A or 512B. Note that the film containing tungsten has a region in contact with the semiconductor film 508.

[0142] This makes it possible to suppress flickering, reduce power consumption, display fast-moving videos smoothly, and display photographs and the like with a rich range of gradations. As a result, it is possible to provide a novel display panel that is highly convenient and reliable.

[0143] Incidentally, for example, a manufacturing line for bottom-gate transistors using amorphous silicon as a semiconductor can be easily modified to a manufacturing line for bottom-gate transistors using oxide semiconductors as a semiconductor. Also, for example, a manufacturing line for top-gate transistors using polysilicon as a semiconductor can be easily modified to a manufacturing line for top-gate transistors using oxide semiconductors as a semiconductor. Both modifications allow the effective use of existing manufacturing lines.

[0144] <<Configuration Example 3 of Semiconductor Film 508>> For example, a compound semiconductor can be used as the semiconductor of a transistor, specifically, a semiconductor containing gallium arsenide can be used.

[0145] For example, an organic semiconductor can be used as a semiconductor for a transistor. Specifically, an organic semiconductor containing polyacenes or graphene can be used for a semiconductor film.

[0146] <Capacity configuration example> The capacitor includes a first conductive film, another conductive film, and an insulating film, the insulating film having a region sandwiched between the first conductive film and the other conductive film.

[0147] For example, the conductive film 504, the conductive film 512A, and the insulating film 506 can be used as a capacitor.

[0148] <<Configuration Example 2 of Functional Layer 520>> Furthermore, the functional layer 520 includes an insulating film 521, an insulating film 518, an insulating film 516, an insulating film 506, an insulating film 501C, and the like (see FIG. 3A).

[0149] The insulating film 521 has a region sandwiched between the pixel circuit 530(i,j) and the display element 550(i,j).

[0150] The insulating film 518 has a region sandwiched between the insulating film 521 and the insulating film 501C.

[0151] The insulating film 516 has a region sandwiched between the insulating film 518 and the insulating film 501C.

[0152] The insulating film 506 has a region sandwiched between the insulating film 516 and the insulating film 501C.

[0153] [Insulating film 521] For example, the insulating film 521 can be formed using an insulating inorganic material, an insulating organic material, or an insulating composite material containing an inorganic material and an organic material.

[0154] Specifically, the insulating film 521 can be formed using an inorganic oxide film, an inorganic nitride film, an inorganic oxynitride film, or the like, or a stacked material formed by stacking a plurality of films selected from these.

[0155] For example, a film containing a silicon oxide film, a silicon nitride film, a silicon oxynitride film, an aluminum oxide film, or the like, or a film containing a stacked material selected from these, can be used for the insulating film 521. Note that a silicon nitride film is a dense film and has an excellent function of suppressing diffusion of impurities.

[0156] For example, polyester, polyolefin, polyamide, polyimide, polycarbonate, polysiloxane, acrylic resin, or the like, or a laminated material or composite material of two or more resins selected from these can be used for the insulating film 521. Alternatively, the insulating film 521 may be formed using a photosensitive material. In this way, the insulating film 521 can planarize steps resulting from various structures overlapping with the insulating film 521, for example.

[0157] Polyimide has superior properties compared to other organic materials in terms of thermal stability, insulating properties, toughness, low dielectric constant, low coefficient of thermal expansion, chemical resistance, etc. Therefore, polyimide can be suitably used for the insulating film 521, etc.

[0158] For example, a film formed using a photosensitive material can be used for the insulating film 521. Specifically, a film formed using a photosensitive polyimide, a photosensitive acrylic resin, or the like can be used for the insulating film 521.

[0159] [Insulating film 518] For example, the material that can be used for the insulating film 521 can be used for the insulating film 518.

[0160] For example, a material having a function of suppressing diffusion of oxygen, hydrogen, water, an alkali metal, an alkaline earth metal, or the like can be used for the insulating film 518. Specifically, a nitride insulating film can be used for the insulating film 518. For example, silicon nitride, silicon nitride oxide, aluminum nitride, aluminum nitride oxide, or the like can be used for the insulating film 518. This can suppress diffusion of impurities into the semiconductor film of the transistor.

[0161] [Configuration example 1 of insulating film 516] For example, the material that can be used for the insulating film 521 can be used for the insulating film 516.

[0162] Specifically, the insulating film 516 can be formed using a film formed using a method different from that of the insulating film 518 .

[0163] [Insulating film 506] For example, the material that can be used for the insulating film 521 can be used for the insulating film 506 .

[0164] Specifically, the insulating film 506 can be a film including a silicon oxide film, a silicon oxynitride film, a silicon nitride oxide film, a silicon nitride film, an aluminum oxide film, a hafnium oxide film, an yttrium oxide film, a zirconium oxide film, a gallium oxide film, a tantalum oxide film, a magnesium oxide film, a lanthanum oxide film, a cerium oxide film, or a neodymium oxide film.

[0165] [Insulating film 501D] The insulating film 501D has a region sandwiched between the insulating film 501C and the insulating film 516.

[0166] For example, the material that can be used for the insulating film 506 can be used for the insulating film 501D.

[0167] [Insulating film 501C] For example, the insulating film 501C can be made of a material that can be used for the insulating film 521. Specifically, the insulating film 501C can be made of a material containing silicon and oxygen, which can suppress diffusion of impurities into pixel circuits, display elements, and the like.

[0168] <<Configuration Example 3 of Functional Layer 520>> The functional layer 520 includes a conductive film, wiring, and terminals. Conductive materials can be used for the wiring, electrodes, terminals, conductive film, and the like.

[0169] 《Wiring, etc.》 For example, inorganic conductive materials, organic conductive materials, metals, conductive ceramics, etc. can be used for wiring etc.

[0170] Specifically, metal elements selected from aluminum, gold, platinum, silver, copper, chromium, tantalum, titanium, molybdenum, tungsten, nickel, iron, cobalt, palladium, and manganese can be used for wiring, etc. Alternatively, alloys containing the above-mentioned metal elements can be used for wiring, etc. In particular, alloys of copper and manganese are suitable for microfabrication using wet etching.

[0171] Specifically, a two-layer structure in which a titanium film is stacked on an aluminum film, a two-layer structure in which a titanium film is stacked on a titanium nitride film, a two-layer structure in which a tungsten film is stacked on a titanium nitride film, a two-layer structure in which a tungsten film is stacked on a tantalum nitride film or a tungsten nitride film, a three-layer structure in which a titanium film, an aluminum film is stacked on the titanium film, and a titanium film is further formed on top of that, and the like can be used for wiring, etc.

[0172] Specifically, conductive oxides such as indium oxide, indium tin oxide, indium zinc oxide, zinc oxide, and zinc oxide doped with gallium can be used for wiring or the like.

[0173] Specifically, a film containing graphene or graphite can be used for wiring or the like.

[0174] For example, a film containing graphene can be formed by forming a film containing graphene oxide and reducing the film containing graphene oxide. Examples of the reduction method include a method of applying heat or a method of using a reducing agent.

[0175] For example, a film containing metal nanowires can be used for wiring etc. Specifically, nanowires containing silver can be used.

[0176] Specifically, conductive polymers can be used for wiring and the like.

[0177] For example, the terminal 519B can be electrically connected to the flexible printed circuit board FPC1 using the conductive material ACF1 (see FIG. 2A). Specifically, the terminal 519B can be electrically connected to the flexible printed circuit board FPC1 using the conductive material CP.

[0178] <Configuration Example 3 of Display Panel 700> The display panel 700 also includes a substrate 510, a substrate 770, and a sealing material 705 (see FIG. 3A).

[0179] 《Base material 510, base material 770》 The substrate 510 or the substrate 770 can be made of a material that is light-transmitting.

[0180] For example, a flexible material can be used for the base material 510 or the base material 770. This makes it possible to provide a flexible display panel.

[0181] For example, a material with a thickness of 0.7 mm or less and 0.1 mm or more can be used. Specifically, a material that has been polished to a thickness of about 0.1 mm can be used. This allows for weight reduction.

[0182] Incidentally, glass substrates of 6th generation (1500 mm × 1850 mm), 7th generation (1870 mm × 2200 mm), 8th generation (2200 mm × 2400 mm), 9th generation (2400 mm × 2800 mm), 10th generation (2950 mm × 3400 mm), etc. can be used for the base material 510 or the base material 770. This allows a large display device to be manufactured.

[0183] The substrate 510 or the substrate 770 can be made of an organic material, an inorganic material, or a composite material of an organic material and an inorganic material.

[0184] For example, inorganic materials such as glass, ceramics, and metals can be used. Specifically, alkali-free glass, soda-lime glass, potash glass, crystal glass, aluminosilicate glass, tempered glass, chemically strengthened glass, quartz, sapphire, or the like can be used for the substrate 510 or the substrate 770. Alternatively, aluminosilicate glass, tempered glass, chemically strengthened glass, sapphire, or the like can be suitably used for the substrate 510 or the substrate 770 that is disposed on the side of the display panel closer to the user. This can prevent the display panel from being damaged or scratched during use.

[0185] Specifically, inorganic oxide films, inorganic nitride films, inorganic oxynitride films, etc. can be used. For example, silicon oxide films, silicon nitride films, silicon oxynitride films, aluminum oxide films, etc. can be used. Stainless steel, aluminum, etc. can be used for the substrate 510 or the substrate 770.

[0186] For example, a single crystal semiconductor substrate made of silicon or silicon carbide, a polycrystalline semiconductor substrate, a compound semiconductor substrate such as silicon germanium, an SOI substrate, or the like can be used for the base material 510 or the base material 770. This allows a semiconductor element to be formed on the base material 510 or the base material 770.

[0187] For example, organic materials such as resins, resin films, or plastics can be used for the substrate 510 or the substrate 770. Specifically, materials including polyester, polyolefin, polyamide (nylon, aramid, etc.), polyimide, polycarbonate, polyurethane, or acrylic resin, epoxy resin, or resins having siloxane bonds such as silicone can be used for the substrate 510 or the substrate 770. For example, resin films, resin plates, or laminated materials containing these materials can be used. This can reduce the weight. Or, for example, it can reduce the frequency of breakage due to dropping.

[0188] Specifically, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethersulfone (PES), cycloolefin polymer (COP), cycloolefin copolymer (COC), or the like can be used for the substrate 510 or the substrate 770.

[0189] For example, a composite material in which a metal plate, a thin glass plate, or a film of an inorganic material or the like is bonded to a resin film or the like can be used for substrate 510 or substrate 770. For example, a composite material in which fibrous or particulate metal, glass, inorganic material, or the like is dispersed in a resin can be used for substrate 510 or substrate 770. For example, a composite material in which fibrous or particulate resin, organic material, or the like is dispersed in an inorganic material can be used for substrate 510 or substrate 770.

[0190] Furthermore, a single-layer material or a material having multiple layers stacked thereon can be used for the substrate 510 or the substrate 770. For example, a material having an insulating film or the like stacked thereon can be used. Specifically, a material having one or more films selected from a silicon oxide layer, a silicon nitride layer, a silicon oxynitride layer, or the like stacked thereon can be used. This can prevent, for example, the diffusion of impurities contained in the substrate. Alternatively, it can prevent the diffusion of impurities contained in glass or resin. Alternatively, it can prevent the diffusion of impurities that permeate the resin.

[0191] Alternatively, paper or wood may be used for the substrate 510 or the substrate 770 .

[0192] For example, a material having heat resistance sufficient to withstand heat treatment during the manufacturing process can be used for the base material 510 or the base material 770. Specifically, a material having heat resistance against heat applied during the manufacturing process for directly forming a transistor, a capacitor, or the like can be used for the base material 510 or the base material 770.

[0193] For example, a method can be used in which an insulating film, a transistor, a capacitor, or the like is formed on a process substrate that has heat resistance to heat applied during the manufacturing process, and the formed insulating film, transistor, capacitor, or the like is transferred to, for example, the base material 510 or the base material 770. In this way, for example, an insulating film, a transistor, a capacitor, or the like can be formed on a flexible substrate.

[0194] "Sealant 705" The sealing material 705 has an area sandwiched between the functional layer 520 and the substrate 770, and has the function of bonding the functional layer 520 and the substrate 770 together (see FIG. 3A).

[0195] The sealant 705 can be made of an inorganic material, an organic material, or a composite material of an inorganic material and an organic material.

[0196] For example, the sealant 705 can be made of an organic material such as a heat-melting resin or a curable resin.

[0197] For example, the sealant 705 can be made of an organic material such as a reaction-curing adhesive, a photo-curing adhesive, a heat-curing adhesive, or / and an anaerobic adhesive.

[0198] Specifically, adhesives including epoxy resin, acrylic resin, silicone resin, phenolic resin, polyimide resin, imide resin, PVC (polyvinyl chloride) resin, PVB (polyvinyl butyral) resin, EVA (ethylene vinyl acetate) resin, etc. can be used for the sealing material 705.

[0199] <Configuration Example 4 of Display Panel 700> The display panel 700 includes a color conversion layer CC(j), a light-shielding film BM, a structure KB1 or a functional film 770P, and the like.

[0200] <<Color conversion layer CC(j)>> Color conversion layer CC(j) has an area sandwiched between substrate 770 and display element 550(i,j). For example, color conversion layer CC(j) can be formed using photolithography. Alternatively, a color conversion layer CC(j+1) different from color conversion layer CC(j) can be formed adjacent to color conversion layer CC(j). This allows for the formation of a fine color conversion layer CC(j).

[0201] For example, a material that emits light with a wavelength longer than the wavelength of the incident light can be used for the color conversion layer CC(j). For example, a material that absorbs blue light or ultraviolet light and converts it to green light and emits it, a material that absorbs blue light or ultraviolet light and converts it to red light and emits it, or a material that absorbs ultraviolet light and converts it to blue light and emits it can be used for the color conversion layer. Specifically, quantum dots with a diameter of several nanometers can be used for the color conversion layer CC(j). Alternatively, perovskite can be used for the color conversion layer CC(j). This allows the emission of light with a narrow half-width spectrum, or highly saturated light.

[0202] For example, a single film or a laminated film formed by stacking multiple films can be used for the color conversion layer CC(j). Specifically, a laminated film formed by stacking a film that can be formed by a method that is unlikely to damage the display element 550(i,j) and a dense film with few defects can be used for the color conversion layer CC(j). This can suppress the diffusion of impurities into the display element 550(i,j). Alternatively, it can improve the reliability of the display element 550(i,j).

[0203] 《Light blocking film BM》 The light-shielding film BM has an opening in the area overlapping with the pixel 702(i, j). For example, a dark-colored material can be used for the light-shielding film BM. This can improve the display contrast.

[0204] 《Structure KB1》 The structural body KB1 has a region sandwiched between the functional layer 520 and the base material 770. The structural body KB1 also has a function of providing a predetermined gap between the functional layer 520 and the base material 770.

[0205] 《Functional membrane 770P, etc.》 The functional film 770P has an area that overlaps with the display element 550(i, j).

[0206] For example, an anti-reflection film, a polarizing film, a retardation film, a light diffusing film, a light collecting film, or the like can be used for the functional film 770P.

[0207] For example, an anti-reflection film having a thickness of 1 μm or less can be used for the functional film 770P. Specifically, a laminated film having three or more dielectric layers, preferably five or more dielectric layers, and more preferably fifteen or more dielectric layers can be used for the functional film 770P. This can suppress the reflectance to 0.5% or less, preferably 0.08% or less.

[0208] For example, a circularly polarizing film can be used for the functional film 770P.

[0209] In addition, the functional film 770P can be used with anti-static films that prevent dust from adhering, water-repellent films that make it difficult for dirt to adhere, oil-repellent films that make it difficult for dirt to adhere, anti-reflection films, non-glossy films (anti-glare films), hard coat films that prevent scratches from occurring during use, and self-repairing films that repair scratches that do occur.

[0210] <Configuration Example 5 of Display Panel 700> The display panel 700 also includes an insulating film 528, an insulating film 573, and a sealing film 574 (see FIG. 3A).

[0211] "Insulating Film 528" The insulating film 528 has a region sandwiched between the functional layer 520 and the substrate 770, and the insulating film 528 has an opening in a region overlapping with the display element 550(i, j) (see FIG. 3A).

[0212] For example, the same material as that used for the insulating film 521 can be used for the insulating film 528. Specifically, the insulating film 528 can be a silicon oxide film, a film containing an acrylic resin, a film containing polyimide, or the like.

[0213] "Insulating Film 573" The insulating film 573 has a region that sandwiches the display element 550(i, j) between itself and the functional layer 520 (see FIG. 3A).

[0214] For example, a single film or a stacked film in which multiple films are stacked can be used for the insulating film 573. Specifically, a stacked film in which an insulating film 573A that can be formed by a method that does not damage the display element 550(i,j) and a dense insulating film 573B with few defects are stacked can be used for the insulating film 573. This can suppress diffusion of impurities into the display element 550(i,j). Alternatively, the reliability of the display element 550(i,j) can be improved.

[0215] "Sealing film 574" For example, a material that can be used for the insulating film 521 can be used for the sealing film 574. Alternatively, a stacked film in which a light-transmitting resin 574A and a film 574B with low moisture permeability are stacked can be used for the sealing film 574 (see FIG. 4A). Alternatively, a resin that does not generate gas can be used for the light-transmitting resin 574A. Specifically, silicon nitride can be used for the film 574B with low moisture permeability.

[0216] For example, the insulating film 521 can be formed by a sputtering method. Specifically, the insulating film 521 can be formed at a temperature of room temperature or higher and 100° C. or lower.

[0217] <<Configuration example of display element 550(i, j)>> An element that controls light emission can be used for the display element 550(i,j). For example, a light-emitting element can be used for the display element 550(i,j).

[0218] Specifically, an organic electroluminescence element, an inorganic electroluminescence element, a light-emitting diode, a QDLED (Quantum Dot LED), or the like can be used for the display element 550(i, j) (see FIG. 3A).

[0219] For example, a layer 553(j) containing a light-emitting material can be used in the display element 550(i,j).

[0220] <Configuration Example 3 of Layer 553(j) Containing a Luminescent Material> For example, a laminated material laminated to emit blue light or ultraviolet light can be used for the layer 553(j) containing the luminescent material. Also, for example, a layer that converts blue light or ultraviolet light into light of another hue can be used overlaid on the layer 553(j) containing the luminescent material. This allows, for example, blue light to be converted into light of a predetermined hue. Alternatively, pixels displaying different hues can be aligned without creating separate layers 553(j) containing the luminescent material.

[0221] <Configuration Example 4 of Layer 553(j) Containing a Luminescent Material> For example, a light-emitting unit can be used in layer 553(j) containing a light-emitting material. The light-emitting unit has a region where electrons injected from one side recombine with holes injected from the other side. The light-emitting unit also contains a light-emitting material, which emits energy generated by the recombination of electrons and holes as light.

[0222] For example, multiple light-emitting units and an intermediate layer can be used in the layer 553(j) containing a light-emitting material. The intermediate layer has a region sandwiched between two light-emitting units. The intermediate layer has a charge generation region and functions to supply holes to the light-emitting unit arranged on the cathode side and electrons to the light-emitting unit arranged on the anode side. Note that a configuration having multiple light-emitting units and an intermediate layer is sometimes called a tandem-type light-emitting element.

[0223] This can increase the current efficiency related to light emission, or decrease the current density flowing through the light emitting element at the same luminance, or increase the reliability of the light emitting element.

[0224] For example, a light-emitting unit containing a material that emits light of one hue can be stacked with a light-emitting unit containing a material that emits light of another hue in the layer 553(j) containing the light-emitting material. Alternatively, a light-emitting unit containing a material that emits light of one hue can be stacked with a light-emitting unit containing a material that emits light of the same hue in the layer 553(j) containing the light-emitting material. Specifically, two light-emitting units containing a material that emits blue light can be stacked.

[0225] Incidentally, for example, high molecular weight compounds (oligomers, dendrimers, polymers, etc.), medium molecular weight compounds (compounds in the intermediate range between low molecular weight and high molecular weight: molecular weight of 400 or more and 4000 or less), etc. can be used in the layer 553(j) containing a light-emitting material.

[0226] 《Electrode 551(i,j), electrode 552》 For example, a material that can be used for wiring or the like can be used for the electrode 551(i,j) or the electrode 552. Specifically, a material that transmits visible light can be used for the electrode 551(i,j) or the electrode 552.

[0227] For example, a conductive oxide or a conductive oxide containing indium, such as indium oxide, indium tin oxide, indium zinc oxide, zinc oxide, or zinc oxide doped with gallium can be used. Alternatively, a metal film thin enough to transmit light can be used. Alternatively, a material that transmits visible light can be used.

[0228] For example, a metal film that transmits part of the light and reflects the other part of the light can be used for the electrode 551(i,j) or the electrode 552. For example, the distance between the electrode 551(i,j) and the electrode 552 is adjusted using a layer 553(j) containing a light-emitting material.

[0229] This allows a microcavity structure to be provided in the display element 550(i,j). Alternatively, light of a predetermined wavelength can be extracted more efficiently than other light. Alternatively, light with a narrow spectral half-width can be extracted. Alternatively, light of a vivid color can be extracted.

[0230] For example, a film that efficiently reflects light can be used for the electrode 551(i, j) or the electrode 552. Specifically, a material containing silver, palladium, or the like or a material containing silver, copper, or the like can be used for the metal film.

[0231] Furthermore, electrode 551(i,j) is electrically connected to pixel circuit 530(i,j) through opening 591A (see FIG. 3A). Electrode 551(i,j) overlaps, for example, an opening formed in insulating film 528, and electrode 551(i,j) is provided with insulating film 528 on its periphery.

[0232] This makes it possible to prevent short-circuiting between electrode 551(i,j) and electrode 552.

[0233] <<Configuration Example 2 of Display Area 231>> The display area 231 includes a plurality of pixels. For example, the display area 231 may include a plurality of pixels that display colors with different hues.

[0234] This allows the colors displayed by the plurality of pixels to be mixed by additive or subtractive color mixing, or allows colors of hues that cannot be displayed by individual pixels to be displayed.

[0235] When multiple pixels displaying colors with different hues are used for color mixing, each pixel can be referred to as a sub-pixel, and a group of multiple sub-pixels can be referred to as a pixel.

[0236] For example, pixel 702(i,j) can be referred to as a subpixel, and pixel 702(i,j), pixel 702(i,j+1), and pixel 702(i,j+2) can be collectively referred to as pixel 703(i,k) (see FIG. 1C).

[0237] Specifically, a set of subpixels that display blue, green, and red can be used for pixel 703(i,k).Furthermore, a set of subpixels that display cyan, magenta, and yellow can be used for pixel 703(i,k).

[0238] Furthermore, for example, a sub-pixel that displays white or the like can be added to the above set and used in the pixel.

[0239] <<Configuration Example 3 of Display Area 231>> The display area 231 includes a pixel 702(i,j), a pixel 702(i,j+1), and a pixel 702(i,j+2) (see FIG. 1C).

[0240] The pixel 702(i,j) displays blue having a chromaticity x of 0.120 or more and 0.170 or less, and a chromaticity y of 0.020 or more and less than 0.060 in the CIE 1931 chromaticity coordinates.

[0241] The pixel 702(i, j+1) displays green having a chromaticity x of 0.130 or more and 0.250 or less, and a chromaticity y of 0.710 or more and 0.810 or less in the CIE 1931 chromaticity coordinates.

[0242] The pixel 702(i,j+2) displays red with a chromaticity x greater than 0.680 and equal to or less than 0.720 and a chromaticity y greater than or equal to 0.260 and equal to or less than 0.320 in the CIE 1931 chromaticity coordinates.

[0243] Furthermore, pixels 702(i,j), 702(i,j+1), and 702(i,j+2) are arranged so that the area ratio to the color gamut of the BT.2020-2 standard on the CIE chromaticity diagram is 80% or more, or the coverage rate to the color gamut is 75% or more. Preferably, the area ratio is 90% or more, or the coverage rate is 85% or more.

[0244] This allows for an extremely wide color gamut that meets the international standard Recommendation ITU-R BT.2020-2, and also allows for extremely high-resolution display.

[0245] Note that this embodiment mode can be appropriately combined with other embodiment modes described in this specification.

[0246] (Embodiment 2) In this embodiment, a structure of a display panel according to one embodiment of the present invention will be described with reference to FIG.

[0247] FIG. 6 illustrates a structure of a display panel according to one embodiment of the present invention.

[0248] <Configuration Example 1 of Display Panel 700> The display panel 700 described in this embodiment has a display area 231 (see FIG. 6).

[0249] <<Configuration Example 1 of Display Area 231>> The display area 231 has a group of pixels 702(i,1) through 702(i,n), another group of pixels 702(1,j) through 702(m,j), a scanning line G1(i), and a signal line S1(j) (see FIG. 6), where i is an integer between 1 and m, j is an integer between 1 and n, and m and n are integers greater than or equal to 1.

[0250] Although not shown, the display area 231 also has a conductive film VCOM2 and a conductive film ANO.

[0251] A group of pixels 702(i,1) to 702(i,n) are arranged in the row direction (the direction indicated by arrow R1 in the figure), and the group of pixels 702(i,1) to 702(i,n) includes pixel 702(i,j).

[0252] Another group of pixels 702(1,j) to 702(m,j) are arranged in a column direction (the direction indicated by arrow C1 in the figure) that intersects with the row direction, and the other group of pixels 702(1,j) to 702(m,j) includes pixel 702(i,j).

[0253] The scanning line G1(i) is electrically connected to a group of pixels 702(i,1) to 702(i,n) arranged in the row direction.

[0254] The signal line S1(j) is electrically connected to another group of pixels 702(1,j) to 702(m,j) arranged in the column direction.

[0255] This makes it possible to supply image information to a plurality of pixels, thereby providing a novel display panel that is highly convenient and reliable.

[0256] <<Configuration Example 2 of Display Area 231>> The display area 231 has a plurality of pixels, 600 or more per inch. The plurality of pixels includes a pixel 702(i,j).

[0257] <<Configuration Example 3 of Display Area 231>> Display area 231 has a plurality of pixels arranged in rows and columns. For example, display area 231 has 7600 or more pixels in the row direction and 4300 or more pixels in the column direction. Specifically, display area 231 has 7680 pixels in the row direction and 4320 pixels in the column direction.

[0258] This makes it possible to display a high-definition image, thereby providing a novel display panel that is highly convenient and reliable.

[0259] <Configuration Example 2 of Display Panel 700> The display panel 700 described in this embodiment includes one or more driver circuits, such as a driver circuit GD and a driver circuit SD (see FIG. 6).

[0260] <Driver circuit GDA, driver circuit GDB> The driving circuit GDA and the driving circuit GDB can be used for the driving circuit GD. For example, the driving circuit GDA and the driving circuit GDB have a function of supplying a selection signal based on the control signal SP.

[0261] Specifically, it has a function of supplying a selection signal to one scanning line at a frequency of 30 Hz or more, preferably 60 Hz or more, based on the control signal SP, thereby enabling smooth display of moving images.

[0262] Alternatively, the display device may have a function of supplying a selection signal to one scanning line at a frequency of less than 30 Hz, preferably less than 1 Hz, and more preferably less than once per minute, based on the control signal SP, thereby enabling the display of a still image with reduced flicker.

[0263] When multiple driver circuits are provided, for example, the frequency at which the driver circuit GDA supplies a selection signal can be made different from the frequency at which the driver circuit GDB supplies a selection signal. Specifically, the frequency at which the driver circuit GDA supplies a selection signal can be made higher for one region displaying a still image than for another region displaying a moving image. This allows a still image with reduced flicker to be displayed in one region, and a moving image to be displayed smoothly in the other region.

[0264] The frame frequency can be made variable. For example, display can be performed at a frame frequency of 1 Hz or more and 120 Hz or less. Alternatively, display can be performed at a frame frequency of 120 Hz using the progressive method.

[0265] For example, a bottom-gate transistor or a top-gate transistor can be used in the driver circuit GD. Specifically, a transistor MD can be used in the driver circuit GD (see FIG. 4).

[0266] Note that in the step of forming a semiconductor film used for the transistor of the pixel circuit 530(i,j), for example, a semiconductor film used for the transistor of the driver circuit GD can be formed.

[0267] <Drive circuit SD> The drive circuit SD has a function of generating an image signal based on information V11 and a function of supplying the image signal to a pixel circuit electrically connected to one display element (see FIG. 6).

[0268] For example, various sequential circuits such as a shift register can be used for the driver circuit SD.

[0269] For example, an integrated circuit formed on a silicon substrate can be used for the driver circuit SD.

[0270] For example, the integrated circuit can be connected to the terminals using a chip-on-glass (COG) method or a chip-on-film (COF) method, specifically, an anisotropic conductive film can be used to connect the integrated circuit to the terminals.

[0271] Note that this embodiment mode can be appropriately combined with other embodiment modes described in this specification.

[0272] (Embodiment 3) In this embodiment, a structure of a display device according to one embodiment of the present invention will be described with reference to FIGS.

[0273] 7A to 7D are diagrams illustrating the structure of a display device according to one embodiment of the present invention, in which FIG. 7A is a block diagram of a display device according to one embodiment of the present invention, and FIG. 7B to FIG. 7D are projection views illustrating the external appearance of the display device according to one embodiment of the present invention.

[0274] <Example of display device configuration> The display device described in this embodiment has a display panel 700 and a control unit 238 (see FIG. 7A).

[0275] <<Configuration Example 1 of Control Unit 238>> The control unit 238 is supplied with image information VI and control information CI, which may be, for example, a clock signal or a timing signal.

[0276] The control unit 238 generates information V11 based on the image information VI, and generates a control signal SP based on the control information CI, and also supplies the information V11 and the control signal SP.

[0277] For example, the information V11 includes gradations of 8 bits or more, preferably 12 bits or more. Also, for example, a clock signal or a start pulse of a shift register used in a drive circuit can be used as the control signal SP.

[0278] <Configuration Example 2 of Control Unit 238> For example, the expansion circuit 234 and the image processing circuit 235 can be used in the control unit 238 .

[0279] 《Stretching circuit 234》 The decompression circuit 234 has a function of decompressing the image information VI that is supplied in a compressed state. The decompression circuit 234 has a storage unit. The storage unit has a function of storing, for example, the decompressed image information.

[0280] "Image Processing Circuit 235" The image processing circuit 235 includes, for example, a storage area. The storage area has a function of storing information included in the image information VI.

[0281] The image processing circuit 235 has, for example, a function of correcting the image information VI based on a predetermined characteristic curve to generate information V11, and a function of supplying the information V11.

[0282] <<Display panel configuration example 1>> Information V11 and a control signal SP are supplied to the display panel 700. For example, the display panel 700 includes a drive circuit. Specifically, the display panel 700 described in the first or second embodiment can be used.

[0283] <Drive circuit> The drive circuits operate based on a control signal SP. By using the control signal SP, the operations of multiple drive circuits can be synchronized.

[0284] For example, the drive circuits GDA(1), GDA(2), GDB(1), and GDB(2) can be used in a display panel. The drive circuits GDA(1), GDA(2), GDB(1), and GDB(2) are supplied with a control signal SP and have the function of supplying a selection signal.

[0285] For example, the drive circuit SDA(1), drive circuit SDA(2), drive circuit SDB(1), drive circuit SDB(2), drive circuit SDC(1), and drive circuit SDC(1) can be used in a display panel. Furthermore, the drive circuit SDA(1), drive circuit SDA(2), drive circuit SDB(1), drive circuit SDB(2), drive circuit SDC(1), and drive circuit SDC(1) are supplied with a control signal SP and information V11 and can supply an image signal.

[0286] <<Configuration example of pixel 702(i,j)>> Pixel 702(i,j) is displayed based on information V11.

[0287] This allows image information to be displayed using the display element, thereby providing a novel display device with excellent convenience and reliability, or, for example, a television receiving system (see FIG. 7B), a video monitor (see FIG. 7C), or a notebook computer (see FIG. 7D).

[0288] <<Display panel configuration example 2>> For example, the control circuit 233 can be used in the display panel 700. Specifically, the control circuit 233 formed on a rigid substrate can be used in the display panel 700. Furthermore, the control circuit 233 formed on the rigid substrate can be electrically connected to the control unit 238 using a flexible printed circuit board.

[0289] Control circuit 233 The control circuit 233 has a function of generating and supplying a control signal SP. For example, a clock signal or a timing signal can be used as the control signal SP. Specifically, a timing controller can be used for the control circuit 233.

[0290] Note that this embodiment mode can be appropriately combined with other embodiment modes described in this specification.

[0291] (Fourth embodiment) In this embodiment, a configuration of an input / output device of one embodiment of the present invention will be described with reference to FIG.

[0292] FIG. 8 is a block diagram illustrating a configuration of an input / output device according to one embodiment of the present invention.

[0293] <Configuration example 1 of input / output device> The input / output device described in this embodiment includes an input unit 240 and a display unit 230 (see FIG. 8).

[0294] 《Display section 230》 Display unit 230 includes a display panel. For example, display panel 700 described in Embodiment 1 or 2 can be used for display unit 230. A configuration including input unit 240 and display unit 230 can be referred to as input / output panel 700TP.

[0295] <<Configuration Example 1 of Input Unit 240>> The input unit 240 has a detection area 241. The input unit 240 has a function of detecting an object approaching the detection area 241.

[0296] The sensing region 241 comprises an area that overlaps with the pixel 702(i,j).

[0297] This makes it possible to detect an object in the area overlapping the display unit while displaying image information using the display unit. Alternatively, position information can be input using a finger or the like brought close to the display unit as a pointer. Alternatively, position information can be associated with image information displayed on the display unit. As a result, a novel input / output device with excellent convenience and reliability can be provided.

[0298] Configuration example 1 of detection area 241 The sensing area 241 may, for example, comprise one or more detectors.

[0299] The detection region 241 has a group of detectors 802(g,1) to 802(g,q) and another group of detectors 802(1,h) to 802(p,h), where g is an integer between 1 and p, h is an integer between 1 and q, and p and q are integers greater than or equal to 1.

[0300] A group of detectors 802(g,1) to 802(g,q) includes a detector 802(g,h) and is arranged in the row direction (the direction indicated by arrow R2 in the figure). Note that the direction indicated by arrow R2 may be the same as or different from the direction indicated by arrow R1.

[0301] Another group of detectors 802(1,h) to 802(p,h) includes detector 802(g,h) and is arranged in a column direction (the direction indicated by arrow C2 in the figure) that intersects with the row direction.

[0302] Detector The detector has a function of detecting a nearby pointer. For example, a finger or a stylus pen can be used as the pointer. For example, a metal piece or a coil can be used as the stylus pen.

[0303] Specifically, a capacitance proximity sensor, an electromagnetic induction proximity sensor, an optical proximity sensor, a resistive film proximity sensor, or the like can be used as the detector.

[0304] It is also possible to use detectors of multiple types in combination, for example, a detector that detects a finger and a detector that detects a stylus pen can be used in combination.

[0305] This allows the type of pointer to be determined. Alternatively, different commands can be associated with the detection information based on the determined type of pointer. Specifically, if it is determined that a finger is used as the pointer, the detection information can be associated with a gesture. Alternatively, if it is determined that a stylus pen is used as the pointer, the detection information can be associated with a drawing process.

[0306] Specifically, a finger can be detected using a capacitance-based, pressure-sensitive, or optical proximity sensor, or a stylus pen can be detected using an electromagnetic induction-based or optical proximity sensor.

[0307] <<Configuration Example 2 of Input Unit 240>> The input section 240 comprises an oscillator circuit OSC and a detection circuit DC (see FIG. 8).

[0308] The oscillator circuit OSC supplies a probe signal to the detector 802(g, h). For example, a square wave, a sawtooth wave, a triangular wave, a sine wave, etc. can be used as the probe signal.

[0309] The detector 802(g,h) generates and provides a detection signal that varies based on the distance to the pointer proximate to the detector 802(g,h) and the probe signal.

[0310] The detection circuit DC provides input information based on the detection signal.

[0311] This makes it possible to detect the distance from the approaching pointer to the detection area 241. Alternatively, it is possible to detect the position within the detection area 241 to which the pointer is closest.

[0312] Note that this embodiment mode can be appropriately combined with other embodiment modes described in this specification.

[0313] (Embodiment 5) In this embodiment, a structure of a data processing device of one embodiment of the present invention will be described with reference to FIGS.

[0314] 9A is a block diagram illustrating a configuration of an information processing device of one embodiment of the present invention, and FIGS. 9B and 9C are projection views illustrating examples of the external appearance of the information processing device.

[0315] Fig. 10 is a flowchart illustrating a program according to an embodiment of the present invention, in which Fig. 10A is a flowchart illustrating the main processing of the program according to an embodiment of the present invention, and Fig. 10B is a flowchart illustrating interrupt processing.

[0316] 11A and 11B are diagrams illustrating a program according to one embodiment of the present invention. Fig. 11A is a flowchart illustrating interrupt processing of a program according to one embodiment of the present invention. Fig. 11B is a schematic diagram illustrating the operation of an information processing device. Fig. 11C is a timing chart illustrating the operation of an information processing device according to one embodiment of the present invention.

[0317] <Configuration example 1 of information processing device> The information processing device described in this embodiment includes an arithmetic unit 210 and an input / output unit 220 (see FIG. 9A). The input / output unit 220 is electrically connected to the arithmetic unit 210. The information processing device 200 may also include a housing (see FIGS. 9B and 9C).

[0318] <<Configuration Example 1 of the Calculation Device 210>> The input information II or the detected information DS is supplied to the arithmetic unit 210. The arithmetic unit 210 generates control information CI and image information VI based on the input information II or the detected information DS, and supplies the control information CI and the image information VI.

[0319] The arithmetic device 210 includes a calculation unit 211 and a storage unit 212. The arithmetic device 210 also includes a transmission path 214 and an input / output interface 215.

[0320] The transmission path 214 is electrically connected to the calculation unit 211 , the storage unit 212 , and the input / output interface 215 .

[0321] 《Calculation section 211》 The calculation unit 211 has a function of executing a program, for example.

[0322] 《Storage section 212》 The storage unit 212 has a function of storing, for example, a program executed by the calculation unit 211, initial information, setting information, images, and the like.

[0323] Specifically, a hard disk, a flash memory, a memory including a transistor including an oxide semiconductor, or the like can be used.

[0324] Input / output interface 215, transmission path 214 The input / output interface 215 has terminals or wiring and functions to supply information and receive information. For example, it can be electrically connected to the transmission path 214. It can also be electrically connected to the input / output device 220.

[0325] The transmission path 214 includes wiring and has the function of supplying information and receiving information. For example, the transmission path 214 can be electrically connected to the input / output interface 215. The transmission path 214 can also be electrically connected to the calculation unit 211, the storage unit 212, or the input / output interface 215.

[0326] <<Configuration Example of Input / Output Device 220>> The input / output device 220 provides input information II and sensed information DS. The input / output device 220 is supplied with control information CI and image information VI (see FIG. 9A).

[0327] For example, keyboard scan codes, position information, button operation information, audio information, image information, etc. can be used as input information II. Alternatively, for example, illuminance information, posture information, acceleration information, direction information, pressure information, temperature information, humidity information, etc. of the environment in which the information processing device 200 is used can be used as detection information DS.

[0328] For example, a signal for controlling the brightness, saturation, or hue of the image information VI may be used as the control information CI, or a signal for changing the display of a part of the image information VI may be used as the control information CI.

[0329] The input / output device 220 includes a display unit 230, an input unit 240, and a detection unit 250. For example, the input / output device described in the fourth embodiment can be used as the input / output device 220. The input / output device 220 can also include a communication unit 290.

[0330] <<Configuration example of display unit 230>> The display unit 230 displays the image information VI based on the control information CI.

[0331] The display unit 230 includes a control unit 238, a drive circuit GD, a drive circuit SD, and a display panel 700 (see FIG. 7). For example, the display device described in the third embodiment can be used for the display unit 230.

[0332] <<Configuration example of input unit 240>> The input unit 240 generates input information II. For example, the input unit 240 has a function of supplying position information P1.

[0333] For example, a human interface or the like can be used for the input unit 240 (see FIG. 9A). Specifically, a keyboard, a mouse, a touch sensor, a microphone, a camera, or the like can be used for the input unit 240.

[0334] It is also possible to use a touch sensor having an area overlapping the display unit 230. Note that an input / output device including the display unit 230 and a touch sensor having an area overlapping the display unit 230 can be called a touch panel or a touch screen.

[0335] For example, a user can perform various gestures (tap, drag, swipe, pinch in, etc.) using a finger that touches the touch panel as a pointer.

[0336] For example, the computing device 210 can analyze information such as the position or trajectory of a finger touching the touch panel, and when the analysis result satisfies a predetermined condition, it can determine that a predetermined gesture has been provided, allowing the user to provide a predetermined operation command associated with the predetermined gesture using the gesture.

[0337] In one example, a user can provide a "scroll command" to change the display position of image information by using a gesture of moving a finger in contact with the touch panel along the touch panel.

[0338] The user can also issue a "drag command" to pull out and display the navigation panel NP at the edge of the display area 231 by using a gesture of moving a finger in contact with the edge of the display area 231 (see FIG. 9C). The user can also issue a "leaf-through command" to flip through the index image IND, parts of other pages, or thumbnail images TN of other pages in a predetermined order on the navigation panel NP by using a gesture of moving the position where the finger is pressed firmly, or by using the pressure of the finger. This allows the user to turn pages on the e-book reader just like flipping through pages in a paper book. Alternatively, the user can use the thumbnail images TN or index image IND to find a desired page.

[0339] <<Configuration example of the detection unit 250>> The detection unit 250 generates detection information DS. For example, the detection unit 250 has a function of detecting the illuminance of the environment in which the information processing device 200 is used, and a function of supplying the illuminance information.

[0340] The detection unit 250 has a function of detecting the surrounding conditions and supplying detection information, such as illuminance information, posture information, acceleration information, direction information, pressure information, temperature information, or humidity information.

[0341] For example, the detection unit 250 may be a photodetector, a posture detector, an acceleration sensor, a direction sensor, a GPS (Global Positioning System) signal receiving circuit, a pressure-sensitive switch, a pressure sensor, a temperature sensor, a humidity sensor, or a camera.

[0342] Communications Department 290 The communication unit 290 has a function of supplying information to the network and acquiring information from the network.

[0343] 《Case》 The housing has a function of housing the input / output device 220 or the arithmetic device 210. Alternatively, the housing has a function of supporting the display unit 230 or the arithmetic device 210.

[0344] This makes it possible to generate control information based on input information or detection information. Alternatively, it is possible to display image information based on input information or detection information. Alternatively, it is possible for the information processing device to operate by grasping the intensity of light received by the housing of the information processing device in the environment in which the information processing device is used. Alternatively, it is possible for the user of the information processing device to select the display method. As a result, it is possible to provide a novel information processing device that is highly convenient and reliable.

[0345] It should be noted that these components cannot be clearly separated, and one component may also serve as another component or may include part of another component. For example, a touch panel in which a touch sensor is superimposed on a display panel is both a display unit and an input unit.

[0346] <<Configuration Example 2 of the Calculation Device 210>> The computing device 210 includes an artificial intelligence unit 213 (see FIG. 9A).

[0347] The artificial intelligence unit 213 is supplied with the input information II or the sensed information DS, and infers the control information CI based on the input information II or the sensed information DS. The artificial intelligence unit 213 also supplies the control information CI.

[0348] This makes it possible to generate control information CI that is displayed in a way that is perceived as suitable. Or, it is possible to display it in a way that is perceived as suitable. Or, it is possible to generate control information CI that is displayed in a way that is perceived as comfortable. Or, it is possible to display it in a way that is perceived as comfortable. As a result, it is possible to provide a novel information processing device that is excellent in convenience and reliability.

[0349] [Natural Language Processing for Input Information II] Specifically, the artificial intelligence unit 213 can perform natural language processing on the input information II and extract one feature from the entire input information II. For example, the artificial intelligence unit 213 can infer the emotion, etc., implied in the input information II and use it as a feature. It can also infer a color, pattern, font, etc. that is empirically felt to be suitable for the feature. The artificial intelligence unit 213 can also generate information specifying the color, pattern, or font of the characters and information specifying the color or pattern of the background, and use this information in the control information CI.

[0350] Specifically, the artificial intelligence unit 213 can perform natural language processing on the input information II to extract some words contained in the input information II. For example, the artificial intelligence unit 213 can extract grammatical errors, factual errors, or expressions containing emotions. In addition, the artificial intelligence unit 213 generates control information CI that displays the extracted part in a different color, pattern, font, or the like from the other parts.

[0351] [Image processing for input information II] Specifically, the artificial intelligence unit 213 can perform image processing on the input information II and extract one feature from the input information II. For example, the artificial intelligence unit 213 can infer the year in which the input information II was taken, whether it was indoors or outdoors, day or night, etc., and use these as features. The artificial intelligence unit 213 can also infer a color tone that is empirically felt to be suitable for the feature, and generate control information CI for using the color tone for display. Specifically, information specifying the color used to express shading (for example, full color, black and white, or brown, etc.) can be used in the control information CI.

[0352] Specifically, the artificial intelligence unit 213 can perform image processing on the input information II to extract a portion of an image included in the input information II. For example, the artificial intelligence unit 213 can generate control information CI that displays a boundary between one portion of the extracted image and another portion of the extracted image. Specifically, the artificial intelligence unit 213 can generate control information CI that displays a rectangle that surrounds a portion of the extracted image.

[0353] [Inference using detected information DS] Specifically, the artificial intelligence unit 213 can generate an inference RI using the detection information DS, or can generate control information CI based on the inference RI so that the user of the information processing device 200 feels comfortable.

[0354] Specifically, the artificial intelligence unit 213 can generate control information CI for adjusting the brightness of the display so that the brightness is perceived as comfortable based on the illuminance of the environment, etc. Alternatively, the artificial intelligence unit 213 can generate control information CI for adjusting the volume so that the volume is perceived as comfortable based on the noise of the environment, etc.

[0355] Note that a clock signal or a timing signal supplied to the control unit 238 included in the display unit 230 can be used as the control information CI. Alternatively, a clock signal or a timing signal supplied to the control unit 248 included in the input unit 240 can be used as the control information CI.

[0356] <Configuration example 2 of information processing device> Another configuration of the information processing device of one embodiment of the present invention will be described with reference to FIGS. 10A and 10B.

[0357] "program" A program according to one embodiment of the present invention includes the following steps (see FIG. 10A).

[0358] [First Step] In the first step, the settings are initialized (see FIG. 10A (S1)).

[0359] For example, predetermined image information to be displayed at startup, a predetermined mode for displaying the image information, and information specifying a predetermined display method for displaying the image information are acquired from the storage unit 212. Specifically, one still image information or other moving image information can be used as the predetermined image information. Also, the first mode or the second mode can be used as the predetermined mode.

[0360] [Second step] In the second step, interrupt processing is permitted (see FIG. 10A (S2)). Note that the arithmetic unit for which interrupt processing is permitted can perform the interrupt processing in parallel with the main processing. The arithmetic unit that has returned from the interrupt processing to the main processing can reflect the results obtained from the interrupt processing in the main processing.

[0361] When the counter value is the initial value, the arithmetic unit may perform an interrupt process, and when returning from the interrupt process, the counter may be set to a value other than the initial value. This allows interrupt process to be performed every time after the program is started.

[0362] [Third Step] In the third step, the image information is displayed using a predetermined mode or a predetermined display method selected in the first step or interrupt process (see FIG. 10A (S3)). The predetermined mode specifies the mode in which the information is displayed, and the predetermined display method specifies the method in which the image information is displayed. For example, the predetermined mode or the predetermined display method can be used to display image information VI.

[0363] For example, one way of displaying image information VI can be associated with a first mode, and another way of displaying image information VI can be associated with a second mode, allowing the display method to be selected based on the selected mode.

[0364] First Mode Specifically, a method of supplying a selection signal to one scanning line at a frequency of 30 Hz or more, preferably 60 Hz or more, and performing display based on the selection signal can be associated with the first mode.

[0365] For example, if the selection signal is supplied at a frequency of 30 Hz or more, preferably 60 Hz or more, the movement of the moving image can be displayed smoothly.

[0366] For example, if the image is updated at a frequency of 30 Hz or more, preferably 60 Hz or more, an image that changes so as to smoothly follow the user's operations can be displayed on the information processing device 200 being operated by the user.

[0367] Second Mode Specifically, the second mode can be associated with a method in which a selection signal is supplied to one scan line at a frequency of less than 30 Hz, preferably less than 1 Hz, and more preferably less than once per minute, and display is performed based on the selection signal.

[0368] Supplying the selection signal at a frequency of less than 30 Hz, preferably less than 1 Hz, and more preferably less than once per minute can suppress flicker or blinking and reduce power consumption.

[0369] For example, when the information processing device 200 is used in a clock, the display can be updated once per second or once per minute.

[0370] Incidentally, when a light-emitting element is used as a display element, for example, the light-emitting element can be made to emit light in a pulsed manner to display image information. Specifically, the organic EL element can be made to emit light in a pulsed manner, and the afterglow can be used for display. Since the organic EL element has excellent frequency characteristics, it may be possible to shorten the driving time of the light-emitting element and reduce power consumption. Alternatively, since heat generation is suppressed, it may be possible to reduce deterioration of the light-emitting element.

[0371] [Fourth step] In the fourth step, if an end command is supplied, the process proceeds to the fifth step, and if an end command is not supplied, the process proceeds to the third step (see FIG. 10A (S4)).

[0372] For example, the termination command supplied in the interrupt process may be used for the determination.

[0373] [5th ​​step] In the fifth step, the process ends (see FIG. 10A (S5)).

[0374] Interrupt handling The interrupt process comprises the following sixth to eighth steps (see FIG. 10B).

[0375] [Sixth step] In a sixth step, for example, the detection unit 250 detects the illuminance of the environment in which the information processing device 200 is used (see FIG. 10B (S6)). Note that instead of the illuminance of the environment, the color temperature or chromaticity of the ambient light may be detected.

[0376] [Seventh step] In the seventh step, a display method is determined based on the detected illuminance information (see FIG. 10B (S7)). For example, the display brightness is determined so as not to be too dark or too bright.

[0377] If the color temperature or chromaticity of the ambient light is detected in the sixth step, the color of the display may be adjusted.

[0378] [Eighth Step] In the eighth step, the interrupt process ends (see FIG. 10B (S8)).

[0379] <Configuration example 3 of information processing device> Another configuration of a data processing device of one embodiment of the present invention will be described with reference to FIG.

[0380] Fig. 11A is a flowchart illustrating a program according to one embodiment of the present invention, and is a flowchart illustrating an interrupt process different from the interrupt process shown in Fig. 10B.

[0381] Note that configuration example 3 of the information processing device differs from the interrupt processing described with reference to Fig. 10B in that the interrupt processing includes a step of changing the mode based on a supplied predetermined event. Here, the different parts will be described in detail, and the above description will be used for parts where a similar configuration can be used.

[0382] Interrupt handling The interrupt process comprises the following sixth to eighth steps (see FIG. 11A).

[0383] [Sixth step] If a predetermined event is supplied in the sixth step, the process proceeds to the seventh step, and if the predetermined event is not supplied, the process proceeds to the eighth step (see FIG. 11A (U6)). For example, whether a predetermined event is supplied within a predetermined period can be used as a condition. Specifically, the predetermined period can be a period of 5 seconds or less, 1 second or less, or 0.5 seconds or less, preferably 0.1 seconds or less, but longer than 0 seconds.

[0384] [Seventh step] In the seventh step, the mode is changed (see FIG. 11A (U7)). Specifically, if the first mode was selected, the second mode is selected, and if the second mode was selected, the first mode is selected.

[0385] For example, it is possible to change the display mode for a partial region of the display unit 230. Specifically, it is possible to change the display mode for a region to which a selection signal is supplied by one of the drive circuits of the display unit 230, which includes the drive circuits GDA, GDB, and GDC (see FIG. 11B).

[0386] For example, when a predetermined event is supplied to the input unit 240 in an area overlapping with an area to which the drive circuit GDB supplies a selection signal, the display mode of the area to which the drive circuit GDB supplies a selection signal can be changed (see FIGS. 11B and 11C). Specifically, the frequency of the selection signal supplied by the drive circuit GDB can be changed in response to a "tap" event supplied to the touch panel using a finger or the like.

[0387] The signal GCLK is a clock signal that controls the operation of the drive circuit GDB, and the signals PWC1 and PWC2 are pulse width control signals that control the operation of the drive circuit GDB. The drive circuit GDB supplies selection signals to the scanning lines G1(m+1) to G1(2m) based on the signals GCLK, PWC1, and PWC2.

[0388] This allows, for example, the driver circuit GDB to supply a selection signal without the driver circuits GDA and GDC supplying selection signals. Alternatively, the display of the area to which the driver circuit GDB supplies a selection signal can be updated without changing the display of the area to which the driver circuits GDA and GDC supply selection signals. Alternatively, the power consumed by the driver circuits can be reduced.

[0389] [Eighth Step] In the eighth step, the interrupt process is ended (see (U8) in FIG. 11A). Note that the interrupt process may be repeatedly executed while the main process is being executed.

[0390] 《Specified Events》 For example, events such as "click" and "drag" supplied using a pointing device such as a mouse, or events such as "tap," "drag," or "swipe" supplied to a touch panel using a finger or the like as a pointer can be used.

[0391] Furthermore, for example, the position of the slide bar pointed by the pointer, the swipe speed, the drag speed, etc. can be used to provide an argument for a command associated with a predetermined event.

[0392] For example, the information detected by the detection unit 250 can be compared with a preset threshold value, and the comparison result can be used for the event.

[0393] Specifically, the detection unit 250 can be a pressure-sensitive detector that comes into contact with a button or the like that is arranged so that it can be pressed into the housing.

[0394] Commands associated with specific events For example, the termination command may be associated with a predetermined event.

[0395] For example, a "page turn command" for switching the display from one image information to another can be associated with a predetermined event. In addition, arguments that determine the page turning speed and the like used when executing the "page turn command" can be given using the predetermined event.

[0396] For example, a "scroll command" that moves the display position of a displayed portion of one piece of image information and displays another portion that is continuous with that portion can be associated with a predetermined event. Note that arguments that determine the speed at which the display is moved and the like used when executing the "scroll command" can be given using the predetermined event.

[0397] For example, a command to set a display method or a command to generate image information can be associated with a predetermined event. An argument that determines the brightness of an image to be generated can be associated with a predetermined event. The argument that determines the brightness of an image to be generated can also be determined based on the brightness of the environment detected by the detection unit 250.

[0398] For example, a command to obtain information distributed using a push-type service using the communication unit 290 can be associated with a predetermined event.

[0399] Whether or not a person is qualified to acquire information may be determined using location information detected by the detection unit 250. Specifically, it may be determined that the person is qualified to acquire information when the person is inside or in an area of ​​a specific classroom, school, conference room, company, building, etc. This allows the information processing device 200 to receive educational materials distributed in a classroom at a school or university, for example, and use the information processing device 200 as a textbook, etc. (see FIG. 9C). Alternatively, the information processing device 200 can receive materials distributed in a conference room at a company, etc., and use the materials for a meeting.

[0400] Note that this embodiment mode can be appropriately combined with other embodiment modes described in this specification.

[0401] (Sixth embodiment) In this embodiment, a structure of a data processing device of one embodiment of the present invention will be described with reference to FIGS.

[0402] 12 to 14 illustrate a configuration of an information processing device of one embodiment of the present invention. Fig. 12A is a block diagram of the information processing device, and Figs. 12B to 12E are perspective views illustrating the configuration of the information processing device. Figs. 13A to 13E are perspective views illustrating the configuration of the information processing device. Figs. 14A and 14B are perspective views illustrating the configuration of the information processing device.

[0403] <Information processing device> An information processing device 5200B described in this embodiment includes an arithmetic device 5210 and an input / output device 5220 (see FIG. 12A).

[0404] The arithmetic unit 5210 has a function of receiving operation information and a function of supplying image information based on the operation information.

[0405] The input / output device 5220 includes a display unit 5230, an input unit 5240, a detection unit 5250, a communication unit 5290, a function for supplying operation information, and a function for receiving image information. The input / output device 5220 also includes a function for supplying detection information, a function for supplying communication information, and a function for receiving communication information.

[0406] The input unit 5240 has a function of supplying operation information. For example, the input unit 5240 supplies operation information based on an operation by a user of the information processing device 5200B.

[0407] Specifically, the input unit 5240 can use a keyboard, hardware buttons, a pointing device, a touch sensor, an illuminance sensor, an imaging device, a voice input device, a gaze input device, a posture detection device, or the like.

[0408] The display portion 5230 has a function of displaying a display panel and image information. For example, the display panel described in Embodiment 1 or 2 can be used as the display portion 5230.

[0409] The detection unit 5250 has a function of supplying detection information, for example, a function of detecting the surrounding environment in which the information processing device is used and supplying the detected information.

[0410] Specifically, the detection unit 5250 can use an illuminance sensor, an imaging device, a posture detection device, a pressure sensor, a human sensor, or the like.

[0411] The communication unit 5290 has a function of receiving and supplying communication information. For example, it has a function of connecting to other electronic devices or communication networks by wireless communication or wired communication. Specifically, it has functions such as wireless local area communication, telephone communication, and short-range wireless communication.

[0412] <<Configuration Example 1 of Information Processing Device>> For example, an outer shape that conforms to a cylindrical pillar or the like can be applied to the display unit 5230 (see FIG. 12B). It also has a function to change the display method according to the illuminance of the usage environment. It also has a function to detect the presence of a person and change the display content. This allows it to be installed on a pillar of a building, for example. Or, it can display advertisements or guidance. Or it can be used for digital signage, etc.

[0413] <<Configuration Example 2 of Information Processing Device>> For example, it has a function of generating image information based on the trajectory of a pointer used by a user (see FIG. 12C). Specifically, a display panel with a diagonal length of 20 inches or more, preferably 40 inches or more, and more preferably 55 inches or more can be used. Alternatively, multiple display panels can be arranged to form a single display area. Alternatively, multiple display panels can be arranged to form a multi-screen. This allows the device to be used, for example, in electronic blackboards, electronic bulletin boards, electronic signboards, etc.

[0414] <<Configuration Example 3 of Information Processing Device>> It can receive information from other devices and display it on the display unit 5230 (see FIG. 12D). Alternatively, it can display several options. Alternatively, the user can select several options and send a reply to the sender of the information. Alternatively, it can have a function to change the display method depending on the illuminance of the usage environment, for example. This can reduce the power consumption of the smartwatch, for example. Alternatively, it can display images on the smartwatch so that it can be used effectively even in environments with strong external light, such as outdoors on a sunny day.

[0415] <<Configuration Example 4 of Information Processing Device>> The display unit 5230 has, for example, a curved surface that curves gently along the side of the housing (see FIG. 12E). Alternatively, the display unit 5230 has a display panel that has the function of displaying information on, for example, the front, side, top, and back of the mobile phone. This allows information to be displayed not only on the front of the mobile phone, but also on the side, top, and back.

[0416] <<Configuration Example 5 of Information Processing Device>> For example, information can be received from the Internet and displayed on the display unit 5230 (see FIG. 13A). Alternatively, a created message can be checked on the display unit 5230. Alternatively, a created message can be sent to another device. Alternatively, for example, the smartphone has a function for changing the display method depending on the illuminance of the usage environment. This can reduce the power consumption of the smartphone. Alternatively, for example, an image can be displayed on the smartphone so that it can be used suitably even in an environment with strong external light, such as outdoors on a sunny day.

[0417] <<Configuration Example 6 of Information Processing Device>> A remote controller can be used as the input unit 5240 (see FIG. 13B). Alternatively, information can be received from a broadcast station or the Internet and displayed on the display unit 5230, for example. Alternatively, a user can be photographed using the detection unit 5250. Alternatively, a video of the user can be transmitted. Alternatively, the user's viewing history can be acquired and provided to a cloud service. Alternatively, recommendation information can be acquired from a cloud service and displayed on the display unit 5230. Alternatively, programs or videos can be displayed based on the recommendation information. Alternatively, for example, a function for changing the display method according to the illuminance of the usage environment can be provided. This allows images to be displayed on the television system so that it can be used appropriately even when strong external light shines indoors on a sunny day.

[0418] <<Configuration Example 7 of Information Processing Device>> For example, learning materials can be received from the Internet and displayed on the display unit 5230 (see FIG. 13C). Alternatively, a report can be entered using the input unit 5240 and sent to the Internet. Alternatively, corrections or evaluations of the report can be obtained from a cloud service and displayed on the display unit 5230. Alternatively, suitable learning materials can be selected and displayed based on the evaluations.

[0419] For example, an image signal can be received from another information processing device and displayed on the display unit 5230. Alternatively, the display unit 5230 can be used as a sub-display by being placed on a stand or the like. This allows images to be displayed on the tablet computer so that it can be used suitably even in an environment with strong external light, such as outdoors on a sunny day.

[0420] "Configuration Example 8 of Information Processing Device" The information processing device includes, for example, a plurality of display units 5230 (see FIG. 13D). For example, the image can be displayed on the display unit 5230 while being captured by the detection unit 5250. Alternatively, the captured image can be displayed on the detection unit. Alternatively, the captured image can be decorated using the input unit 5240. Alternatively, a message can be attached to the captured image. Alternatively, the captured image can be transmitted to the Internet. Alternatively, the information processing device includes a function for changing the capture conditions according to the illuminance of the usage environment. This allows the subject to be displayed on the digital camera so that it can be viewed appropriately even in an environment with strong external light, such as outdoors on a sunny day.

[0421] "Configuration Example 9 of Information Processing Device" For example, another information processing device can be used as a slave and the information processing device of this embodiment can be used as a master to control the other information processing device (see FIG. 13E). Alternatively, for example, part of the image information can be displayed on the display unit 5230, and another part of the image information can be displayed on the display unit of the other information processing device. An image signal can be supplied. Alternatively, information to be written can be obtained from the input unit of the other information processing device using the communication unit 5290. This allows, for example, a wide display area to be used with a portable personal computer.

[0422] "Configuration Example 10 of Information Processing Device" The information processing device includes, for example, a detection unit 5250 that detects acceleration or orientation (see FIG. 14A). Alternatively, the detection unit 5250 can provide information related to the user's position or the direction the user is facing. Alternatively, the information processing device can generate image information for the right eye and image information for the left eye based on the user's position or the direction the user is facing. Alternatively, the display unit 5230 includes a display area for the right eye and a display area for the left eye. This allows, for example, an image of a virtual reality space that provides an immersive feeling to be displayed on a goggle-type information processing device.

[0423] "Configuration Example 11 of Information Processing Device" The information processing device includes, for example, an imaging device and a detection unit 5250 that detects acceleration or orientation (see FIG. 14B). Alternatively, the detection unit 5250 can provide information related to the user's position or the direction the user is facing. Alternatively, the information processing device can generate image information based on the user's position or the direction the user is facing. This makes it possible to display information attached to a real landscape, for example. Alternatively, an image of an augmented reality space can be displayed on a glasses-type information processing device.

[0424] <<Configuration example of electronic device to which display panel can be applied>>

[0425] An example of an electronic device to which the display panel 700 can be applied will be described with reference to FIG.

[0426] The display panel 700 can be incorporated into the display unit of a TV device 7000 (television receiver), a smart watch 7010, a smartphone 7020, a digital camera 7030, an eyeglass-type information terminal 7040, a notebook PC (personal computer) 7050, a PC 7060, a game console 7070, etc.

[0427] High-definition images can be displayed by applying the display panel 700 to the display units of a TV device 7000, a smart watch 7010, a smartphone 7020, a digital camera 7030, an eyeglass-type information terminal 7040, a notebook PC 7050, a PC 7060, a game console 7070, etc. Therefore, the user can view realistic images.

[0428] Note that this embodiment mode can be appropriately combined with other embodiment modes described in this specification.

[0429] For example, when it is explicitly stated in this specification that X and Y are connected, it is assumed that the specification discloses the cases where X and Y are electrically connected, where X and Y are functionally connected, and where X and Y are directly connected. Therefore, it is not limited to a predetermined connection relationship, for example, a connection relationship shown in a drawing or text, and connection relationships other than those shown in a drawing or text are also assumed to be disclosed in the drawing or text.

[0430] Here, X and Y are assumed to be objects (for example, devices, elements, circuits, wiring, electrodes, terminals, conductive films, layers, etc.).

[0431] An example of a case where X and Y are directly connected is a case where an element that enables an electrical connection between X and Y (for example, a switch, transistor, capacitance element, inductor, resistance element, diode, display element, light-emitting element, load, etc.) is not connected between X and Y, and a case where X and Y are connected without an element that enables an electrical connection between X and Y (for example, a switch, transistor, capacitance element, inductor, resistance element, diode, display element, light-emitting element, load, etc.).

[0432] As an example of a case where X and Y are electrically connected, one or more elements (e.g., a switch, a transistor, a capacitance element, an inductor, a resistance element, a diode, a display element, a light-emitting element, a load, etc.) that enable the electrical connection between X and Y can be connected between X and Y. The switch has a function of controlling on / off. In other words, the switch has a function of being in a conductive state (on state) or a non-conductive state (off state) and controlling whether or not a current flows. Alternatively, the switch has a function of selecting and switching a path for the current to flow. The case where X and Y are electrically connected includes the case where X and Y are directly connected.

[0433] An example of a case where X and Y are functionally connected is when one or more circuits that enable the functional connection between X and Y (for example, logic circuits (inverters, NAND circuits, NOR circuits, etc.), signal conversion circuits (DA conversion circuits, AD conversion circuits, gamma correction circuits, etc.), potential level conversion circuits (power supply circuits (boosting circuits, step-down circuits, etc.), level shifter circuits that change the potential level of a signal, etc.), voltage sources, current sources, switching circuits, amplifier circuits (circuits that can increase the signal amplitude or current amount, operational amplifiers, differential amplifier circuits, source follower circuits, buffer circuits, etc.), signal generation circuits, memory circuits, control circuits, etc.) can be connected between X and Y. As an example, even if another circuit is sandwiched between X and Y, X and Y are considered to be functionally connected if a signal output from X is transmitted to Y. When X and Y are functionally connected, this includes a case where X and Y are directly connected and a case where X and Y are electrically connected.

[0434] Note that when it is explicitly stated that X and Y are electrically connected, it is assumed that the following cases are disclosed in this specification: when X and Y are electrically connected (i.e., when they are connected with another element or another circuit between them), when X and Y are functionally connected (i.e., when they are functionally connected with another circuit between them), and when X and Y are directly connected (i.e., when X and Y are connected without another element or another circuit between them). In other words, when it is explicitly stated that X and Y are electrically connected, it is assumed that the same content as when it is simply and explicitly stated that they are connected is disclosed in this specification.

[0435] For example, when the source (or first terminal, etc.) of the transistor is electrically connected to X via (or without) Z1 and the drain (or second terminal, etc.) of the transistor is electrically connected to Y via (or without) Z2, or when the source (or first terminal, etc.) of the transistor is directly connected to a part of Z1 and another part of Z1 is directly connected to X, and the drain (or second terminal, etc.) of the transistor is directly connected to a part of Z2 and another part of Z2 is directly connected to Y, it can be expressed as follows.

[0436] For example, it can be expressed as follows: "X, Y, and the source (or first terminal, etc.) and drain (or second terminal, etc.) of the transistor are electrically connected to each other, and are electrically connected in the order of X, the source (or first terminal, etc.) of the transistor, the drain (or second terminal, etc.) of the transistor, and Y." Or, it can be expressed as follows: "The source (or first terminal, etc.) of the transistor is electrically connected to X, and the drain (or second terminal, etc.) of the transistor is electrically connected to Y, and X, the source (or first terminal, etc.) of the transistor, the drain (or second terminal, etc.) of the transistor, and Y are electrically connected in this order." Or, it can be expressed as follows: "X is electrically connected to Y via the source (or first terminal, etc.) and drain (or second terminal, etc.) of the transistor, and X, the source (or first terminal, etc.) of the transistor, the drain (or second terminal, etc.) of the transistor, and Y are connected in this order." By using expressions similar to these examples to specify the order of connections in a circuit configuration, the source (or first terminal, etc.) and drain (or second terminal, etc.) of a transistor can be distinguished and the technical scope can be determined.

[0437] Alternatively, as another way of expressing this, for example, it can be expressed as follows: "The source (or first terminal, etc.) of the transistor is electrically connected to X via at least a first connection path, the first connection path does not have a second connection path, the second connection path is a path between the source (or first terminal, etc.) of the transistor and the drain (or second terminal, etc.) of the transistor via a transistor, the first connection path is a path via Z1, the drain (or second terminal, etc.) of the transistor is electrically connected to Y via at least a third connection path, the third connection path does not have the second connection path, and the third connection path is a path via Z2." Alternatively, it can be expressed as "the source (or first terminal, etc.) of the transistor is electrically connected to X via Z1 by at least a first connection path, the first connection path does not have a second connection path, the second connection path has a connection path via a transistor, and the drain (or second terminal, etc.) of the transistor is electrically connected to Y via Z2 by at least a third connection path, the third connection path does not have the second connection path." Alternatively, it can be expressed as follows: "The source (or first terminal, etc.) of the transistor is electrically connected to X via Z1 by at least a first electrical path, the first electrical path does not have a second electrical path, the second electrical path is an electrical path from the source (or first terminal, etc.) of the transistor to the drain (or second terminal, etc.) of the transistor, and the drain (or second terminal, etc.) of the transistor is electrically connected to Y via Z2 by at least a third electrical path, the third electrical path does not have a fourth electrical path, and the fourth electrical path is an electrical path from the drain (or second terminal, etc.) of the transistor to the source (or first terminal, etc.) of the transistor." By using expression methods similar to these examples to define connection paths in a circuit configuration, it is possible to distinguish between the source (or first terminal, etc.) and the drain (or second terminal, etc.) of the transistor and determine the technical scope.

[0438] Note that these representation methods are merely examples and are not limited to these. Here, X, Y, Z1, and Z2 are objects (for example, devices, elements, circuits, wiring, electrodes, terminals, conductive films, layers, etc.).

[0439] Note that even when independent components are shown electrically connected in a circuit diagram, one component may have the functions of multiple components. For example, if part of a wiring also functions as an electrode, one conductive film has the functions of both wiring and an electrode. Therefore, the term "electrically connected" in this specification also includes such cases where one conductive film has the functions of multiple components. [Explanation of symbols]

[0440] ANO: Conductive film, BM: Light-shielding film, CC: Color conversion layer, CI: Control information, DS: Detection information, G1: Scanning line, GCLK: Signal, II: Input information, IND: Index image, NP: Navigation panel, P1: Position information, PWC1: Signal, PWC2: Signal, S1: Signal line, SP: Control signal, TN: Thumbnail image, VI: Image information, V11: Information, VCOM2: Conductive film, 103a: Light-emitting unit, 103b: Light-emitting unit, 104: Intermediate layer, 111: Layer, 112: Layer, 113: Layer, 114: Layer, 200: information processing device, 210: calculation device, 211: calculation unit, 212: memory unit, 213: artificial intelligence unit, 214: transmission path, 215: input / output interface, 220: input / output device, 230: display unit, 231: display area, 233: control circuit, 234: expansion circuit, 235: image processing circuit, 238: control unit, 240: input unit, 241: detection area, 248: control unit, 250: detection unit, 290: communication unit, 400: molecular weight, 501C: insulating film, 501D: insulating film, 504: conductive film, 506: insulating film, 508: semiconductor film, 508A: region, 508B: region, 508C: region, 510: substrate, 512A: conductive film, 512B: conductive film, 516: insulating film, 518: insulating film, 519B: terminal, 520: functional layer, 521: insulating film, 524: conductive film, 528: insulating film, 530: pixel circuit, 550: display element, 551: electrode, 552: electrode, 553: layer, 573: insulating film, 573A: insulating film, 573B: insulating film, 574: sealing film, 574A: resin, 574B: film, 591A: opening, 700: display panel , 700TP: Input / output panel, 702: Pixel, 703: Pixel, 705: Sealant, 770: Base material, 770P: Functional film, 802: Detector, 5200B: Information processing device, 5210: Computing device, 5220: Input / output device, 5230: Display unit, 5240: Input unit, 5250: Detection unit, 5290: Communication unit, 7000: TV device, 7010: Smart watch, 7020: Smartphone, 7030: Digital camera, 7040: Glasses-type information terminal, 7050: PC, 7060: PC, 7070: Game console

Claims

1. A display area; An insulating film; A sealing film, the display region comprises a first pixel; the first pixel comprises a first display element and a first color conversion layer; the first color conversion layer has an area overlapping with the first display element, the first color conversion layer converts a first light into a second light; the second light has a spectrum including a higher proportion of light having a longer wavelength than the first light; the insulating film covers the first display element; the sealing film has a region in which the first color conversion layer is sandwiched between the insulating film and the sealing film, the sealing film has a region in contact with the insulating film outside the display region, the first display element emits the first light; the first display element comprises a first layer, a second layer, a third layer and a fourth layer; the third layer is sandwiched between the second layer and the fourth layer; the second layer is sandwiched between the first layer and the third layer; the first layer comprises a first material and a second material; the second layer comprises a third material; the third layer comprises a light-emitting material and a fourth material; the fourth layer comprises a fifth material and a sixth material; the first material has a HOMO level of −5.7 eV or more and −5.4 eV or less; the first material is any one of a material having a dibenzofuran skeleton, a dibenzothiophene skeleton, and an anthracene skeleton, an aromatic amine having a substituent containing a dibenzofuran ring or a dibenzothiophene ring, an aromatic monoamine having a naphthalene ring, and an aromatic monoamine in which a 9-fluorenyl group is bonded to a nitrogen atom of an amine via an arylene group; the second material has an acceptor property; the third material has a lower HOMO level than the first material; the third material is any one of a material having a dibenzofuran skeleton, a dibenzothiophene skeleton, and an anthracene skeleton, an aromatic amine having a substituent containing a dibenzofuran ring or a dibenzothiophene ring, an aromatic monoamine having a naphthalene ring, and an aromatic monoamine in which a 9-fluorenyl group is bonded to a nitrogen atom of an amine via an arylene group; the fourth material has a lower HOMO level than the third material; the fifth material has a HOMO level of −6.0 eV or higher; The sixth material is an organic complex of an alkali metal or an organic complex of an alkaline earth metal.

2. The fifth material has an electron mobility of 1×10 at a square root of an electric field strength [V / cm] of 600. －７ cm ２ / Vs or more 5×10 －５ cm ２ The display panel according to claim 1 , wherein the Vref is equal to or less than Vs.

3. The display panel according to claim 1 , wherein the first color conversion layer includes quantum dots and a light-transmitting resin.

4. 4. The display panel according to claim 1, wherein the first light is blue light.

5. the first display element comprises a first light-emitting unit, a second light-emitting unit, and an intermediate layer; the intermediate layer has a region sandwiched between the first light-emitting unit and the second light-emitting unit, the intermediate layer supplies holes to one of the first light-emitting unit or the second light-emitting unit; Provides electrons to the other the first light-emitting unit emits blue light; 5. The display panel according to claim 1, wherein the second light-emitting unit emits blue light.

6. It has a functional layer, the functional layer has an area overlapping with the first display element, the functional layer includes a first pixel circuit, The functional layer has an opening, the first pixel comprises the first pixel circuit; 6. The display panel according to claim 1, wherein the first pixel circuit is electrically connected to the first display element in the opening.

7. the display region includes a second pixel and a third pixel; the first pixel displays red; the second pixel displays green; the second pixel includes a second color conversion layer; the third pixel displays blue; the first color conversion layer converts blue light into red light; 7. The display panel according to claim 1, wherein the second color conversion layer converts blue light into green light.

8. An information processing device comprising: one or more of a keyboard, a hardware button, a pointing device, a touch sensor, an illuminance sensor, an imaging device, a voice input device, a gaze input device, and a posture detection device; and the display panel according to any one of claims 1 to 7.

Images