JP2018200353A - Electrooptical panel - Google Patents

Abstract

To provide an electrooptical panel which can adjust resiliency and impact resistance.SOLUTION: A flexible electrooptical panel comprises a flexible electrooptical element for presenting an image by radiating light or controlling the permeation of the light, and a fluid chamber. The fluid chamber is overlapped on the electrooptical element, and expanded in a plane which is parallel with the electrooptical element, and fluid is stored in the fluid chamber. The electrooptical panel also comprises a pressure adjustment mechanism for adjusting the pressure of the fluid in the fluid chamber.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electro-optical panel including a display panel and a lighting panel.

  Electro-optical panels such as OLED (organic light-emitting diode) display panels, OLED illumination panels, cholesteric liquid crystal display panels, PDLC (polymer dispersed liquid crystal) display panels, and electrophoretic display panels are electro-optical elements (for example, light-emitting elements and In addition to the liquid crystal element), it has a plurality of layers (for example, Patent Document 1). In this specification, the “electro-optical element” includes a light emitting element (for example, an OLED element) that emits light by the action of electricity and a light control element (for example, a liquid crystal element) that controls transmission of light by the action of electricity. An “electro-optical panel” refers to a panel having such an electro-optical element.

JP-T-2006-504223

  For a flexible electro-optical panel, it is important to be easily deformed, to be easily restored to the original flat state, and to prevent display defects of the electro-optical element due to impact. However, an electro-optical panel that can achieve both flexibility, resilience, and impact resistance has not been proposed.

  Therefore, the present invention provides an electro-optical panel that can achieve both flexibility, resilience, and impact resistance.

  An electro-optical panel according to one embodiment of the present invention is a flexible electro-optical panel, which overlaps the electro-optical element, which is flexible and presents an image by emitting light or controlling transmission of light. And a fluid chamber that extends in a plane parallel to the electro-optic element and contains a fluid therein, and a pressure adjustment mechanism that adjusts the pressure of the fluid in the fluid chamber.

  In this aspect, the rigidity (in other words, elasticity) of the fluid chamber changes by adjusting the pressure of the fluid in the fluid chamber. Therefore, it is possible to adjust the bendability of the electro-optical panel, the resilience after deformation, and the impact resistance.

  The fluid chamber may be disposed on a side opposite to the light emission side of the electro-optic element.

  Alternatively, the fluid chamber may be disposed on the light emission side of the electro-optic element. In this case, the fluid chamber contributes to protection of the front side (light emission side) of the electro-optic element.

  The electro-optical panel may include an elastomer structure disposed inside the fluid chamber in a compressible state in the fluid chamber thickness direction. The impact absorbing ability of the electro-optic panel is improved by the elastomer structure.

  An electro-optical panel according to another aspect of the present invention is a flexible electro-optical panel, which displays an image by emitting light or controlling transmission of light, and the electro-optical element And a fluid chamber that is disposed in a plane parallel to the electro-optic element, is disposed on the light emission side of the electro-optic element, and in which a fluid is placed, and is compressed in the thickness direction of the fluid chamber. An elastomer structure disposed inside the fluid chamber in a possible state, and a pressure adjusting mechanism that adjusts the pressure of the fluid in the fluid chamber.

  In this aspect, the rigidity (in other words, elasticity) of the fluid chamber changes by adjusting the pressure of the fluid in the fluid chamber. Therefore, it is possible to adjust the bendability of the electro-optical panel, the resilience after deformation, and the impact resistance. Further, the impact absorbing ability of the electro-optical panel is improved by the elastomer structure. Thus, the fluid chamber functions as a protective layer for the electro-optic element. Either the fluid or the elastomeric structure may overlap the pixel or sub-pixel of the electro-optic element, and in either case, if the overlap is transparent, the light travels straight compared to, for example, a glass fiber protective film. Because of its excellent properties, it can present high-definition images with less haze and turbidity.

  Preferably, the boundary between the elastomer structure and the fluid does not overlap a pixel or sub-pixel of the electro-optic element in the fluid chamber. In this case, scattering of light at the boundary is prevented, and deterioration of the image is prevented.

  The fluid may have a plurality of overlapping portions that overlap the pixel or subpixel, and the elastomeric structure may have at least one non-overlapping portion that does not overlap the pixel or subpixel. Alternatively, the elastomeric structure may have a plurality of overlapping portions that overlap the pixels or subpixels, and the fluid may have at least one non-overlapping portion that does not overlap the pixels or subpixels. Thus, either the fluid or the elastomeric structure may overlap the pixel or subpixel of the electro-optic element.

  Each of the overlapping portions formed of the elastomer structure may have a cylindrical shape having a central axis in the thickness direction of the fluid chamber. Alternatively, each of the overlapping portions formed of the elastomer structure may have a dome shape having a central axis in the thickness direction of the fluid chamber. When each overlapping part made of an elastomer structure has a dome shape, each overlapping part functions as a convex lens, and when the fluid chamber thickness changes, the focal length of the convex lens changes, so the viewing angle of the image Can change. In addition, an electro-optic electro-optic panel capable of stereoscopic display without restricting the position of the observer can be realized.

  The fluid and the elastomer structure may be transparent, and the fluid may have a refractive index different from that of the elastomer structure. In this case, due to the difference in refractive index between the overlapping portion and the non-overlapping portion, the possibility that the light transmitted through the overlapping portion enters the other overlapping portion and disturbs the image is reduced.

  Alternatively, the non-overlapping portion may be opaque. In this case, the possibility that the light transmitted through the overlapping portion enters the other overlapping portion and disturbs the image is reduced.

  Preferably, the pressure adjusting mechanism changes the thickness of the fluid chamber by adjusting the pressure in the fluid chamber. As the thickness of the fluid chamber changes, the viewing angle of the electro-optical panel also changes. In other words, if the thickness of the overlapping portion is expanded, the optical path length of the light transmitted through the overlapping portion is increased, while the cross-sectional area of the optical path is not significantly changed, so that the viewing angle is narrowed. If the thickness of the overlapping portion is reduced, the optical path length of the light transmitted through the overlapping portion is shortened, so that the viewing angle is widened. In this way, the fluid chamber and the pressure adjustment mechanism can be used as a variable control mechanism for the viewing angle.

1 is a cross-sectional view schematically showing a flexible OLED electro-optical panel according to a first embodiment of the present invention. FIG. 2 is a partial enlarged cross-sectional view of the OLED electro-optical panel of FIG. 1. It is sectional drawing which shows schematically the flexible OLED electro-optical panel which concerns on 2nd Embodiment of this invention. FIG. 4 is a partial enlarged cross-sectional view of the OLED electro-optical panel of FIG. 3. FIG. 4 is a plan view schematically showing the OLED electro-optical panel of FIG. 3. FIG. 5 is a partially enlarged cross-sectional view of the OLED electro-optical panel of FIG. 4 in a state where a fluid chamber is compressed. It is a partial expanded sectional view of the OLED electro-optical panel which concerns on a modification. It is a partial expanded sectional view of the OLED electro-optical panel which concerns on another modification. FIG. 9 is a partial enlarged cross-sectional view of the OLED electro-optical panel of FIG. 8 in a state where the fluid chamber is compressed. It is sectional drawing which shows schematically the flexible OLED electro-optical panel which concerns on another modification.

  Hereinafter, various embodiments according to the present invention will be described with reference to the accompanying drawings. The objects, advantages and novel features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. The same reference numbers are used in different drawings to denote the same or functionally similar elements. It should be understood that the drawings are schematic and the scale of the drawings is not accurate.

1st Embodiment As shown in FIG. 1, the flexible OLED electro-optical panel 1 which concerns on 1st Embodiment of this invention has the flexible substrate (flexible film) 10 and the barrier layer 12 formed on it. . The flexible substrate 10 is made of a polymer material such as polyimide. The barrier layer 12 is formed from a polymer material or an inorganic material.

  A TFT (thin film transistor) layer 14 and an OLED layer 16 are formed on the barrier layer 12. Although not shown in detail, the TFT layer 14 includes a large number of TFTs, an interlayer insulating film covering the TFTs, and a plurality of anodes for a plurality of OLED elements.

  In this embodiment, the OLED layer 16 has a large number of OLED elements 16R, 16G, and 16B. The OLED element 16R emits red light, the OLED element 16G emits green light, and the OLED element 16B emits blue light. Although not shown in detail, each of the OLED elements 16R, 16G, and 16B has layers such as an organic light emitting layer, a hole injection layer, and an electron transport layer. On the OLED layer 16, a common cathode layer 18 for a number of OLED elements 16R, 16G, and 16B is formed. One OLED element corresponds to one subpixel, and one set of OLED elements 16R, 16G, and 16B corresponds to one pixel.

  For example, an encapsulated body 20 formed of an inorganic material or a polymer material is bonded to the barrier layer 12. The encapsulated body 20 covers the TFT layer 14, the OLED layer 16, and the common cathode layer 18. Protect. Further, a back layer 22 is bonded onto the encapsulated body 20, and a back film 24 is bonded onto the back layer 22. The back film 24 is made of, for example, a polymer material. Although not indispensable, a sealing body 26 may be provided around the side surface of the capsule sealing body 20.

  The OLED electro-optical panel 1 is a bottom emission type that emits light generated in the OLED layer 16 toward the flexible substrate 10 (that is, downward in the drawing). The arrows in the figure indicate the light emission direction. A front film (reinforcing film) 28 is bonded to the flexible substrate 10 in order to improve the strength of the OLED display panel. The front film 28 is formed of a polymer material such as a polyethylene composition or a polyethylene terephthalate composition. However, the adhesive may be removed and the front film 28 may be directly bonded to the flexible substrate 10 by the action of the covalent bond between the material of the front film 28 and the material of the flexible board 10 or the cooperative action of the covalent bond and the intermolecular force. Good.

  In this embodiment, the flexible substrate 10, the barrier layer 12, the TFT layer 14, the OLED layer 16, the common cathode layer 18, and the encapsulation body 20 constitute an electro-optical element.

  FIG. 2 is an enlarged cross-sectional view of the back layer 22. The back layer 22 has a sealing structure having two sealing plates 22A arranged in parallel and a peripheral wall 22B arranged between the sealing plates 22A. In this way, the back layer 22 has the fluid chamber 22C in which the fluid 30 is placed. The fluid chamber 22C overlaps the electro-optical element and extends in a plane parallel to the electro-optical element. The sealing plate 22A is made of, for example, glass or polyimide, and the peripheral wall 22B is made of, for example, an elastomer (for example, urethane rubber or silicone rubber).

  The fluid 30 may be a liquid such as oil or a gas such as the atmosphere. The fluid chamber 22C increases the elasticity of the OLED electro-optical panel 1 and improves the resilience and impact resistance.

  Although not indispensable, the elastomer structure 32 is disposed inside the fluid chamber 22 </ b> C so as to be compressible in the thickness direction of the back layer 22. The material of the elastomer structure 32 is not limited to any material as long as it is a highly elastic polymer substance, but is preferably a thermosetting elastomer, more preferably a thermosetting resin-based elastomer. Chemically crosslinked polymers such as urethane rubber and silicone rubber. The material of the elastomer structure 32 may be the same as or different from the material of the peripheral wall 22B. The fluid 30 fills a space other than the elastomer structure 32 in the fluid chamber 22C. The elastomer structure 32 can be formed by a printing method such as inkjet, screen printing, or gravure printing, photolithography, or the like.

  In this embodiment, the elastomeric structure 32 may be a plurality of spaced apart blocks, but may be partially connected to each other. The shape of the elastomer structure 32 may be, for example, a cylinder, a prism, a hemisphere, or a dome, but is not limited thereto. Since the elastomer structure 32 is partially disposed inside the fluid chamber 22C, the elasticity of the OLED electro-optical panel 1 is increased, and the resilience and impact resistance are improved.

  In this embodiment, since the fluid chamber 22C is provided in the back layer 22, the fluid 30 and the elastomer structure 32 may be transparent or opaque.

  The OLED electro-optical panel 1 includes a pressure adjusting mechanism 34 that adjusts the pressure of the fluid 30 in the fluid chamber 22C. The pressure adjustment mechanism 34 includes a container 36 and a communication pipe 38 that allows the container 36 and the fluid chamber 22C to communicate with each other. The container 36 is a sealed body formed of an elastic body, for example, an elastomer. The communication pipe 38 may be formed of a rigid body, but is preferably formed of an elastic body. Although not indispensable, a pump 40 may be interposed in the communication pipe 38.

  In the absence of the pump 40, if the user compresses the OLED electro-optical panel 1, the pressure inside the fluid chamber 22 </ b> C increases, and if the compression force is released, the pressure decreases and returns. Therefore, in this case, the pressure adjustment mechanism 34 can be regarded as a passive control pressure adjustment mechanism.

  When the pump 40 is provided, the user can operate the pump 40 to increase or decrease the pressure inside the fluid chamber 22C. Therefore, in this case, the pressure adjustment mechanism 34 can be regarded as an active control type pressure adjustment mechanism. The pump 40 may be an electric pump or a manual pump. The pump 40 may be a diaphragm pump, a tube pump, or any other appropriate pump.

  In this embodiment, the rigidity (in other words, elasticity) of the fluid chamber 22C is changed by adjusting the pressure of the fluid 30 in the fluid chamber 22C. Therefore, it is possible to adjust the bendability of the OLED electro-optical panel 1, the resilience after deformation, and the impact resistance.

  In this embodiment, the fluid chamber 22C is disposed on the side opposite to the light emission side of the electro-optic element. However, the fluid chamber may be disposed on the light emission side of the electro-optic element. In this case, the fluid chamber contributes to protection of the front side (light emission side) of the electro-optic element. In a second embodiment to be described later, the fluid chamber is disposed on the light emission side of the electro-optic element.

Second Embodiment As shown in FIG. 3, the flexible OLED electro-optical panel 41 according to the second embodiment of the present invention does not have the back layer 22 of the first embodiment, and the encapsulated body 20 The back film 24 is joined. Further, the front layer 42 is bonded to the flexible substrate 10 instead of the front film 28 of the first embodiment.

  FIG. 4 is an enlarged sectional view of the front layer 42. The front layer 42 has a sealing structure having two sealing plates 42A arranged in parallel and a peripheral wall 42B arranged between the sealing plates 42A. In this way, the front layer 42 has the fluid chamber 42C in which the fluid 50 is placed, and the fluid chamber 42C overlaps the above-described electro-optical element and extends in a plane parallel to the electro-optical element. As described above, in this embodiment, the fluid chamber 42C is disposed on the light emission side of the electro-optic element. The sealing plate 42A is made of, for example, glass or polyimide, and the peripheral wall 42B is made of, for example, an elastomer (for example, urethane rubber or silicone rubber).

  The fluid 50 may be a liquid such as oil or a gas such as the atmosphere. Due to the fluid chamber 42C, the elasticity of the OLED electro-optical panel 41 is enhanced, and the resilience and impact resistance are improved.

  An elastomer structure 52 is disposed inside the fluid chamber 42C so as to be compressible in the thickness direction of the front layer 42. The material of the elastomer structure 52 may be the same as or different from the material of the peripheral wall 42B. The material of the elastomer structure 52 will be described later. The fluid 50 fills a space other than the elastomer structure 52 in the fluid chamber 42C. The elastomer structure 52 can be formed by a printing method such as inkjet, screen printing, or gravure printing, photolithography, or the like.

  In this embodiment, the elastomeric structure 52 may be a plurality of spaced apart separate blocks, but may be partially connected to each other. The shape of the elastomer structure 52 may be, for example, a cylinder or a prism having a central axis in the thickness direction of the fluid chamber 42C, but is not limited thereto. Since the elastomer structure 52 is partially disposed inside the fluid chamber 42C, the elasticity of the OLED electro-optical panel 41 is increased, and the resilience and impact resistance are improved.

  The OLED electro-optical panel 41 includes a pressure adjustment mechanism 54 that adjusts the pressure of the fluid 50 in the fluid chamber 42C. The pressure adjustment mechanism 54 includes a container 56 and a communication pipe 58 that communicates the container 56 and the fluid chamber 42C. The container 56 is a sealed body formed of an elastic body, for example, an elastomer. The communication pipe 58 may be formed of a rigid body, but is preferably formed of an elastic body. Although not indispensable, a pump 59 may be interposed in the communication pipe 58.

  In the absence of the pump 59, if the user compresses the OLED electro-optical panel 41, the pressure inside the fluid chamber 42C increases, and if the compression force is released, the pressure decreases and returns to its original state. Therefore, in this case, the pressure adjustment mechanism 54 can be regarded as a passive control pressure adjustment mechanism.

  When the pump 59 is provided, the user can operate the pump 59 to increase or decrease the pressure inside the fluid chamber 42C. Accordingly, in this case, the pressure adjustment mechanism 54 can be regarded as an active control type pressure adjustment mechanism. The pump 59 may be an electric pump or a manual pump. The pump 59 may be a diaphragm pump, a tube pump, or any other appropriate pump.

  In this embodiment, the rigidity (in other words, elasticity) of the fluid chamber 42C is changed by adjusting the pressure of the fluid 50 in the fluid chamber 42C. Therefore, the bendability of the OLED electro-optical panel 41, the resilience after deformation, and the impact resistance can be adjusted. In addition, the elastomer structure 52 improves the shock absorbing ability of the OLED electro-optical panel 41. Thus, the fluid chamber 42C functions as a protective layer for the electro-optic element.

  FIG. 5 is a plan view schematically showing, in particular, the front layer 42 of the OLED electro-optical panel 41 of the second embodiment. As described above, the shape of the elastomer structure 52 is not limited. However, in the fluid chamber 42C, the boundary between the elastomer structure 52 and the fluid 50 does not overlap the pixel or subpixel of the electro-optic element. For this reason, scattering of light at the boundary is prevented, and deterioration of the image is prevented. In FIG. 5, the elastomeric structure 52 has a plurality of overlapping portions 60 that overlap the pixels and the fluid 50 has one non-overlapping portion 62 that does not overlap the pixels. Although not shown, a plurality of non-overlapping portions 62 may be provided by dividing the region of the fluid 50 by a long elastomer structure 52 (overlapping portion 60).

  In FIG. 5, each overlapping portion 60 overlaps one pixel. However, each overlapping portion 60 may overlap a plurality of pixels, may overlap one subpixel, or may overlap a plurality of subpixels.

  In this embodiment, since the fluid chamber 42C is provided in the front layer 42, the elastomer structure 52 corresponding to the overlapping portion 60 is preferably transparent. The fluid 50 corresponding to the non-overlapping portion 62 may also be transparent. In this case, it is preferable that the fluid 50 has a refractive index different from that of the elastomer structure 52. According to this, due to the difference in refractive index between the overlapping portion 60 and the non-overlapping portion 62, the possibility that light transmitted through the overlapping portion 60 enters the other overlapping portion 60 and disturbs the image is reduced.

  Alternatively, the fluid 50 constituting the non-overlapping portion 62 may be opaque. Also in this case, the possibility that the light transmitted through the overlapping portion 60 enters the other overlapping portion 60 and disturbs the image is reduced.

  In any case, if the elastomer structure 52 corresponding to the overlapping portion 60 is transparent, the elastomer structure 52 is superior in straightness of light compared to, for example, a protective film made of glass fiber. It is possible to present a high-definition image with little.

  The material of the elastomer structure 52 is not limited to any material as long as it is a highly elastic polymer material, but is preferably a thermosetting elastomer, more preferably a thermosetting resin-based elastomer, A chemically cross-linked polymer. In this embodiment, since the elastomer structure 52 corresponds to the overlapping portion 60, the elastomer structure 52 is preferably formed of urethane rubber or silicone rubber having high transparency. Urethane rubber or silicone rubber is also preferable because of its high strength.

  FIG. 6 is a partially enlarged cross-sectional view of the front layer 42 in a state where the fluid chamber 42C is compressed. By providing the peripheral wall 42B and the elastomer structure 52, even if the fluid 50 is incompressible, the pressure adjusting mechanism 54 adjusts the pressure inside the fluid chamber 42C, so that the thickness of the fluid chamber 42C is increased. Changes. As is clear from comparison between FIG. 4 and FIG. 6, the thickness of the fluid chamber 42C is large in FIG. 4, and the thickness of the fluid chamber 42C is small in FIG.

  As the thickness of the fluid chamber 42C changes, the viewing angle of the OLED electro-optical panel 41 also changes. That is, as shown in FIG. 4, if the thickness of the overlapping portion 60 is expanded, the optical path length of the light transmitted through the overlapping portion 60 becomes long, while the cross-sectional area of the optical path does not change significantly. Becomes narrower. As shown in FIG. 6, when the thickness of the overlapping portion 60 is reduced, the optical path length of the light transmitted through the overlapping portion 60 is shortened, so that the viewing angle is widened. Thus, in this embodiment, the fluid chamber 42C and the pressure adjustment mechanism 54 can be used as a variable control mechanism for the viewing angle.

  FIG. 7 is a partially enlarged cross-sectional view of the front layer 42 according to a modification of the second embodiment. In this variation, the fluid 50 corresponds to a pixel or sub-pixel overlapping portion 60 and the elastomeric structure 52 corresponds to a non-overlapping portion 62. Thus, either the fluid or the elastomeric structure may overlap the pixel or subpixel of the electro-optic element. The boundary between the elastomeric structure 52 and the fluid 50 does not overlap the pixel or subpixel of the electro-optic element. For this reason, scattering of light at the boundary is prevented, and deterioration of the image is prevented.

  Since the fluid chamber 42C is provided in the front layer 42, the fluid 50 corresponding to the overlapping portion 60 is preferably transparent in the modification of FIG. The elastomeric structure 52 corresponding to the non-overlapping portion 62 may also be transparent. In this case, it is preferable that the fluid 50 has a refractive index different from that of the elastomer structure 52. According to this, due to the difference in refractive index between the overlapping portion 60 and the non-overlapping portion 62, the possibility that light transmitted through the overlapping portion 60 enters the other overlapping portion 60 and disturbs the image is reduced.

  Alternatively, the elastomer structure 52 constituting the non-overlapping portion 62 may be opaque. Also in this case, the possibility that the light transmitted through the overlapping portion 60 enters the other overlapping portion 60 and disturbs the image is reduced.

  In any case, if the fluid 50 corresponding to the overlapping portion 60 is transparent, the fluid 50 is superior in light straightness as compared with, for example, a protective film made of glass fiber. Can present a simple image. This modification can produce the same effect as that of the second embodiment.

  FIG. 8 is a partially enlarged cross-sectional view of a front layer 42 according to another modification of the second embodiment. In this modification, each of the overlapping portions 60 formed of the elastomer structure 52 has a dome shape having a central axis in the thickness direction of the fluid chamber 42C. This dome shape is a shape in which a part of a sphere is placed on a truncated cone, but may be a hemispherical shape, or a shape obtained by cutting a spheroid on an arbitrary plane perpendicular to the central axis. Also good. This modification can produce the same effect as that of the second embodiment.

  FIG. 9 is a partially enlarged cross-sectional view of the front layer 42 in a state where the fluid chamber 42C is compressed. By providing the peripheral wall 42B and the elastomer structure 52, even if the fluid 50 is incompressible, the pressure adjusting mechanism 54 adjusts the pressure inside the fluid chamber 42C, so that the thickness of the fluid chamber 42C is increased. Changes. As is clear from comparison between FIG. 8 and FIG. 9, the thickness of the fluid chamber 42C is large in FIG. 8, and the thickness of the fluid chamber 42C is small in FIG.

  As the thickness of the fluid chamber 42C changes, the viewing angle of the OLED electro-optical panel 41 also changes. That is, as shown in FIG. 8, if the thickness of the overlapping portion 60 is expanded, the optical path length of the light transmitted through the overlapping portion 60 becomes long, while the cross-sectional area of the optical path does not change remarkably. Becomes narrower. As shown in FIG. 9, if the thickness of the overlapping portion 60 is reduced, the optical path length of the light transmitted through the overlapping portion 60 is shortened, so that the viewing angle is widened.

  Moreover, in the state of FIG. 8, the upper part of each overlapping part 60 comprised with the elastomer structure 52 is curving, and the overlapping part 60 acts like a convex lens. On the other hand, in the state of FIG. 9, the upper part of each overlapping part 60 is deformed and flattened, and the overlapping part 60 does not act like a convex lens. Thus, when each overlapping portion 60 formed of the elastomer structure 52 has a dome shape, each overlapping portion 60 functions as a convex lens, and when the thickness of the fluid chamber 42C changes, the focal length of the convex lens changes. Since it changes, the viewing angle of the image can change. In addition, an electro-optic electro-optic panel capable of stereoscopic display without restricting the position of the observer can be realized.

  FIG. 10 is a cross-sectional view schematically showing a flexible OLED electro-optical panel 63 according to another modification of the second embodiment. The OLED electro-optical panel 63 includes an OLED layer 65 that emits white light instead of the OLED layer 16 that emits color light. A color filter layer 66 is interposed between the OLED layer 65 and the TFT layer 14. The color filter layer 66 includes a large number of color filter elements 66R, 66G, and 66B. The color filter element 66R transmits red light, the color filter element 66G transmits green light, and the color filter element 66B transmits blue light. One color filter element corresponds to one subpixel, and one set of color filter elements 66R, 66G, and 66B corresponds to one pixel.

  The fluid chamber 42 </ b> C may be provided in the front layer 42 of the OLED electro-optical panel 63.

  The back layer 22 having the fluid chamber 22C of the first embodiment may be provided in the electro-optical panel of the second embodiment and its modifications.

  As an embodiment, an OLED electro-optical panel has been described as an example, but a cholesteric liquid crystal electro-optical panel, a PDLC electro-optical panel, an electrophoretic electro-optical panel, or another electro-optical device such as a transparent OLED electro-optical panel or an OLED illumination device. The present invention can also be applied to panels.

1, 41, 63 OLED electro-optical panel 10 flexible substrate 12 barrier layer 14 TFT layer 16 OLED layer 22 back layer 24 back film 28 front film 22A, 42A sealing plate 22B, 42B peripheral wall 22C, 42C fluid chamber 30, 50 fluid 32, 52 Elastomer structure 34, 54 Pressure adjusting mechanism 36, 56 Container 38, 58 Communication pipe 40, 59 Pump 42 Front layer 60 Overlapping part 62 Non-overlapping part 65 OLED layer 66 Color filter layer

Claims (13)

A flexible electro-optic element that presents an image by emitting light or controlling light transmission;
A fluid chamber that overlaps the electro-optic element, extends in a plane parallel to the electro-optic element, and contains a fluid therein;
A pressure adjustment mechanism for adjusting the pressure of the fluid in the fluid chamber;
Flexible electro-optic panel.   The electro-optical panel according to claim 1, wherein the fluid chamber is disposed on a side opposite to a light emission side of the electro-optical element.   The electro-optical panel according to claim 1, wherein the fluid chamber is disposed on a light emission side of the electro-optical element.   4. The electro-optical panel according to claim 1, further comprising an elastomer structure disposed inside the fluid chamber in a compressible state in the thickness direction of the fluid chamber. A flexible electro-optic element that presents an image by emitting light or controlling light transmission;
A fluid chamber that overlaps the electro-optic element, extends in a plane parallel to the electro-optic element, is disposed on the light emission side of the electro-optic element, and contains a fluid therein;
An elastomer structure disposed inside the fluid chamber in a compressible state in the thickness direction of the fluid chamber;
A pressure adjustment mechanism for adjusting the pressure of the fluid in the fluid chamber;
Flexible electro-optic panel.   The electro-optical panel according to claim 5, wherein a boundary between the elastomer structure and the fluid does not overlap a pixel or a sub-pixel of the electro-optical element inside the fluid chamber.   The electro-optic panel of claim 6, wherein the fluid has a plurality of overlapping portions that overlap the pixels or subpixels, and the elastomeric structure has at least one non-overlapping portion that does not overlap the pixels or subpixels. .   The electro-optic panel of claim 6, wherein the elastomeric structure has a plurality of overlapping portions that overlap the pixels or subpixels, and the fluid has at least one non-overlapping portion that does not overlap the pixels or subpixels. .   The electro-optical panel according to claim 8, wherein each of the overlapping portions formed of the elastomer structure has a cylindrical shape having a central axis in a thickness direction of the fluid chamber.   The electro-optical panel according to claim 8, wherein each of the overlapping portions formed of the elastomer structure has a dome shape having a central axis in a thickness direction of the fluid chamber.   The electro-optical panel according to claim 6, wherein the fluid and the elastomer structure are transparent, and the fluid has a refractive index different from a refractive index of the elastomer structure.   The electro-optical panel according to claim 7, wherein the non-overlapping portion is opaque.   13. The electro-optical panel according to claim 5, wherein the pressure adjustment mechanism changes a thickness of the fluid chamber by adjusting a pressure in the fluid chamber.

Images