CN101153696B - Electro-optical device and image forming apparatus - Google Patents

Abstract

An electro-optical device includes a light source array having a plurality of light-emitting devices arranged on a substrate in a direction, a lens array having a plurality of lens elements arranged in the direction, each lens element forming an image on an image carrier using light from the light-emitting element, and a first light transmissible member and a second light transmissible member disposed between the light source array and the lens array so as to be in contact with the light source array and the lens array, in which the first light transmissible member and the second light transmissible member are arranged in continued manner in the direction, and wherein the first light transmissible member and the second light transmissible member are different in any one or more characteristics of refractive index, elastic modulus and light transmittance.

Description

Electro-optical device, image processing system

Technical field

The present invention relates to have the electrooptic panel of arranging electrooptic cells such as light-emitting component such as EL element or light valve (light valve) element electro-optical device, use the manufacture method of the image processing system and the electro-optical device of this electro-optical device.

Background technology

Developing as picture load and holding the printhead that body (for example photoconductor drum) writes the wire of electrostatic latent image, using the technology of the array that is called electroluminescent cell (below be called " EL element ") to the image processing system of electrofax mode.In this art, generally hold configuration optically focused lens arra between the body at EL element array and picture load.As this lens arra, the SLA (selfoc lens array) (self-focusing/SELFOC is the registered trademark of Nippon Sheet Glass Co Ltd) that can obtain from Nippon Sheet Glass Co Ltd is for example arranged.Each of the refractive index distribution lens of optically focused lens arra is low according to the refractive index at central shaft, leave central shaft more, the graded index fiber that the mode that refractive index is high more forms, can make the light transmission that advances from the EL element array, hold the erect image (erect image) that forms on the body for the picture on the EL element array in the picture load.The picture of being obtained by a plurality of refractive index distribution lens is constituting a continuous electrostatic latent image as carrying on a shoulder pole to hold on the body.(for example opening the 2006-205430 communique) with reference to the spy

Open the spy and to be described in the 2006-218848 communique in such printhead, in order to reduce the loss of the light that sends from EL element, the technology of the isolator (spacer) of configuration photopermeability between EL element array and optically focused lens arra.Under such configuration, compare with between array of source and lens arra, only there being the configuration of air, narrow towards the light beam from EL element of lens arra.Therefore, can make from increasing to the ratio (utilization ratio of light) of lens arra quantity of incident light in the emergent light of array of source.

Hope when a plurality of EL element are luminous, from these EL element, is held the optical characteristics homogeneous of the point (spot) of body irradiation to the picture load in such printhead.Promptly wish point that the light from certain EL element causes and have approximate optical characteristics as far as possible from the point that the light of other EL element causes.

Summary of the invention

Therefore, the invention provides when driving a plurality of electrooptic cell, can improve from these electrooptic cells, to picture carry on a shoulder pole the optical characteristics homogeneity of holding the point that body shines electro-optical device, use the manufacture method of the image processing system and the electro-optical device of this electro-optical device.

Description of drawings

Fig. 1 is the stereographic map of partial structurtes of the printer of expression first embodiment of the invention.

Fig. 2 is the planimetric map that schematically shows the array of source of embodiment of the present invention.

Fig. 3 is the stereographic map of the lens arra of embodiment of the present invention.

Fig. 4 is that the electro-optical device of first embodiment of the invention is the side view of printhead.

Fig. 5 is the side view of partial structurtes of the printer of expression first embodiment of the invention.

Fig. 6 is that the electro-optical device of the variation of expression first embodiment of the invention is the side view of printhead.

Fig. 7 is the stereographic map of partial structurtes of the printer of expression second embodiment of the invention.

Fig. 8 is the side view of the printhead of second embodiment of the invention.

Fig. 9 is the side view of printhead of the variation of second embodiment of the invention.

Figure 10 is the stereographic map of summary of representing the part of image processing system in the past.

Figure 11 is the stereographic map of summary of optically focused lens arra of the image processing system of expression Figure 10.

Figure 12 is the cut-open view of the optically focused lens arra of Figure 11.

Figure 13 is the side view of summary of a part of the image processing system of expression Figure 10.

Figure 14 is the curve map of characteristic of imaging radius R of the image processing system of expression Figure 10.

Figure 15 is the planimetric map of the electro-optical device of third embodiment of the invention.

Figure 16 is the side view (front elevation) of the electro-optical device of Figure 15.

Figure 17 represents the curve map of the electro-optical device of Figure 15 as the characteristic of the imaging radius R of the image processing system of bare headed portion use.

Figure 18 and Figure 19 are the figure of manufacture method of the electro-optical device of expression Figure 15.

Figure 20 and Figure 21 are the figure of other manufacture methods of the electro-optical device of expression Figure 15.

Figure 22 is the side view (front elevation) of the electro-optical device of the 4th embodiment of the present invention.

Figure 23～Figure 26 is the figure of manufacture method of the electro-optical device of expression Figure 22.

Figure 27 is a curve map of representing the relation of the light-emitting component of electro-optical device in the past and lightness.

Figure 28 is the planimetric map of the electro-optical device of expression fifth embodiment of the invention.

Figure 29 is the side view of the electro-optical device of Figure 28.

Figure 30 is the curve map of the relation of the light-emitting component of electro-optical device of expression Figure 28 and lightness.

Figure 31 A and Figure 31 B are the key diagrams of an example of the manufacturing process of the described electro-optical device of expression.

Figure 32 A and Figure 32 B are the key diagrams of other examples of the manufacturing process of the described electro-optical device of expression.

Figure 33 is the side view of the electro-optical device of expression sixth embodiment of the invention.

Figure 34 A～Figure 34 D is the key diagram of an example of the manufacturing process of the described electro-optical device of expression.

Figure 35 is the longitudinal section of an example of the image processing system of expression embodiment of the present invention.

Figure 36 is the longitudinal section of other examples of the image processing system of expression embodiment of the present invention.

Embodiment

Below, with reference to description of drawings various embodiments of the present invention.

In the accompanying drawing of reference, the ratio of the size of each several part is different aptly with reality in the explanation of each following embodiment.

First embodiment

Fig. 1 is the stereographic map of partial structurtes of printer 1 (image processing system) of the electrofax mode of the expression printhead 2 (electro-optical device) of using first embodiment of the invention.

As shown in Figure 1, printer 1 has printhead 2 and picture load to hold body is photoconductor drum 3.Photoconductor drum 3 is supported by the turning axle that the long side direction with printhead 2 extends in parallel, and rotates under outer peripheral face and printhead 2 opposed states.Printhead 2 uses as the exposure device of printer 1.

Printhead 2 has: a plurality of light-emitting components are arranged in roughly rectangular array of source 4, alignment arrangements on the substrate and make doubly to become the lens element of erect image from the emergent light of array of source 4 at photoconductor drum 3 etc. and the lens arra 5 that constitutes, be configured in the isolator member 6 between array of source 4 and the lens arra 5.

Fig. 2 is the planimetric map that schematically shows array of source 4.Array of source 4 is on the device substrate 7 that constitutes of the high glass (glass) of the roughly rectangular purity at the main composition member, and integrally formed arrangement light-emitting component is the columns of light elements 8A of a plurality of organic EL (electroluminescence) element 8, the driving element group who is made of the driving element 9 of a plurality of driving organic ELs 8, the control circuit 9a that controls the driving of these driving elements 9 (driving element group).It should be noted that in Fig. 2, organic EL 8 is configured to 1 row, but also can be configured to 2 row by the zigzag shape.At this moment, the interval of organic EL 8 of the long side direction of array of source 4 can be reduced, the resolution of printer can be improved.

Organic EL 8 has organic luminous layer at least between pair of electrodes, by from this a pair of electrode pair luminescent layer supplying electric current, luminous.Electrode a side of this organic EL 8 is connected with concentric line 10, is connected with data line 11 at the opposing party's electrode by driving element 9.Driving element 9 is made of thin film transistor (TFT) (TFT) or thin film diode on-off elements such as (TFD).When driving element 9 is adopted TFT, connect data line 11, connect control circuit 9a at grid in its source region.And, by the action of control circuit group 9a control driving component 9, control from the energising of data line 11 to organic EL 8 by driving element 9.

Alignment arrangements at device substrate 7 has the part of organic EL 8 to engage the seal 12 that is used for sealing organic el element 8.Cooperate with the device substrate 7 roughly rectangular sheet material of sealing organic el element 8 (from extraneous gas blocking) of sealing body 12 is set to the long side direction that its long edge device substrate 7.In view of the above, can suppress the deterioration of the organic EL 8 that causes adhering to of extraneous gas or moisture.It should be noted that, on the device substrate 7 that does not cover, control circuit 9a is installed by sealing body 12.

The array of source 4 of Gou Chenging is the bottom emission mode like this, and device substrate 7 is disposed (with reference to Fig. 1) to downside.The main composition member of array of source 4 is that the linear expansion coefficient (, the ratio of length variations corresponding with variation of temperature) of device substrate 7 for example is 3.8 * 10 ^-6/ ℃ about.

Fig. 3 is the stereographic map of lens arra 5.Lens arra 5 is that self-focusing (registered trademark) the lens element 51a that arranges Nippon Sheet Glass Co Ltd constitutes.This lens element 51a forms fibrous about diameter 0.28mm.In addition, each lens element 51aZ word shape configuration is at the silicones 52 of the gap of each lens element 51a filling black.Configuration Framework 54 around it forms lens arra 5.

This lens element 51a to periphery, has parabolic index distribution from its center.Therefore, Yi Bian the light of incident lens element 51a within it portion swing with some cycles, Yi Bian advance.If adjust the length of lens element 51a, just can make doubly positive imagings such as image.And, according to the lens that wait doubly positive imaging, can be overlapping the picture that adjacent lenses forms, can obtain the image of wide region.Therefore, the lens arra 5 of Fig. 3 can make from all photoimagings of array of source with high precision.By the way, the linear expansion coefficient of lens arra 5 for example is 1.0 * 10 ^-5/ ℃ about.

Get back to Fig. 1, isolator member 6 materials by photopermeabilities such as glass or plastics form.Isolator member 6 forms essentially rectangular to the cross sections perpendicular to long side direction, and the length of its long side direction is shorter than the length of the long side direction of array of source 4, longer than the length of the long side direction of lens arra 5.In addition, the length of the short side direction of isolator member 6 (Width) is shorter than the length of the short side direction of array of source 4, longer than the length of the short side direction of lens arra 5.Have, isolator member 6 is in the cross section perpendicular to long side direction again, and the length of thickness direction (short transverse, the above-below direction of Fig. 1) is shorter than the length of Width.The linear expansion coefficient of isolator member 6 for example is 9.4 * 10 ^-6/ ℃ about.

The array of source 4 of Gou Chenging, lens arra 5 and isolator member 6 are as shown in Figure 1 like this, pass through the cementing agent 13 joint isolator members 6 of photopermeability at the device substrate 7 of array of source 4, cementing agent 14 by photopermeability on isolator member 6 engages lens arra 5, and is integrated as printhead 2.As all sizes of printhead 2, reply A4 size use paper the time, the length of long side direction is 230～240mm, tackle the A3 size use paper the time, the length of long side direction is about 320～330mm.

Fig. 4 is the side view of printhead 2.As shown in Figure 4, cementing agent 13 is made of two kinds of cementing agents such as the first cementing agent 13a and the second cementing agent 13b.Equally, cementing agent 14 also is made of two kinds of cementing agents such as the first cementing agent 14a and the second cementing agent 14b.

In each a end (right side among Fig. 4) of device substrate 7, lens arra 5 and the isolator member 6 of array of source 4, at roughly each the first cementing agent 13a, 14a of coating on the whole of the Width (short side direction) of printhead 2

Each the first cementing agent 13a, 14a for example use thermmohardening type cementing agent or UV cured type cementing agent.Particularly, can enumerate refractive index after solidifying near the refractive index 1.514 of glass, photopermeability more than 90% the UV cured type epoxy of (during thickness 0.1mm) be optodyne (registered trademark) UV-3200 that cementing agent Daikin Ind Ltd makes, the UV cured type epoxy of the refractive index 1.63 that the refractive index ratio glass after solidifying is big is that cementing agent is optocrave (trade mark) HV153 that the Adell of Co., Ltd. makes, refractive index after solidifying is that 1.567 UV cured type epoxy is that cementing agent is optodyine (registered trademark) UV-4000 that Daikin Ind Ltd makes, but is not limited thereto.

Array of source 4 and isolator member 6 are according to keeping the mode of predetermined distance to engage by the first cementing agent 13a each other.In addition, isolator member 6 and lens arra 5 are according to keeping the mode of predetermined distance to engage by the first cementing agent 14a each other.It should be noted that interval d1, d2 between the device substrate 7 and isolator member 6 of array of source 4, between isolator member 6 and the lens arra 5 for example are about 10 μ m.

On the other hand, each the second cementing agent 13b, 14b adhesive surface coating of array of source 4, lens arra 5 and the isolator member 6 beyond the part of the coating first cementing agent 13a, 14a respectively.The second cementing agent 13b, 14b its occupied area in each adhesive surface is set at bigger than the occupied area of the first cementing agent 13a, 14a.

To the second cementing agent 13b, 14b, use to constitute, and have the refractive index same, the cementing agent of photopermeability with the first cementing agent 13a, 14a by gel constituent or the rubber-like constituent littler than the elastic modulus of the first cementing agent 13a, 14a.

The effect of the cementing agent 13,14 of the printhead 2 that constitutes like this is described.

Fig. 5 is the side view of the partial structurtes of expression printer 1.As shown in Figure 5, in printhead 2, for example owing to the heating of organic EL 8 or peripherals (not illustrating), temperature rises, and then array of source 4, lens arra 5 and isolator member 6 just expand.At this moment, each coefficient of thermal expansion (thermal expansivity) difference (below, same with first embodiment, the linear expansion coefficient situation bigger than the linear expansion coefficient of array of source 4 of isolator member 6 described, so because change of shape (degree of expansion, for example the expansion and contraction of the arrow A direction the during temperature variation of Fig. 5 has difference) difference, produce distortion, the long side direction two ends of printhead 2 are circular-arc (double dot dash line of Fig. 5) to the direction perk that deviates from photoconductor drum 3.If printhead 2 perks are circular-arc like this, then for the predetermined distance L1 between photoconductor drum 3 and the lens arra 5, along with long side direction mediad two ends from printhead 2, the distance between photoconductor drum 3 and the lens arra 5 elongated gradually (offset of lens arra).In view of the above, be the position P on the surface of photoconductor drum 3 for the image space (reference position) of standard, the image space of reality is offset at optical axis direction, the optical characteristics of reference position descend (as fuzzy).

; in the first embodiment; the second cementing agent 13b, 14b that gel constituent that elastic modulus is little or rubber-like constituent constitute are at each adhesive surface; stride the wide region coating; so this second cementing agent 13b, 14b elastic deformation, thereby the distortion that the difference of the coefficient of thermal expansion (thermal expansivity) of absorption array of source 4, isolator member 6 and lens arra 5 causes.Therefore, it is arc to prevent that printhead 2 is deformed into.

Therefore, according to the first above-mentioned embodiment, when printhead 2 rose in temperature, also not perk in lens arra 5 and any place 3 opposed of photoconductor drums, for photoconductor drum 3, kept predetermined distance L1.And the first cementing agent 13a, 14a always fixedly use adhesive acts with what the interval of regulation kept as the interval of interval, isolator member 6 and the lens arra 5 of the device substrate 7 of array of source 4 and isolator member 6.Therefore, even when the second cementing agent 13b, 14b elastic deformation, can not bring any influence to printhead 2 yet.Therefore, can prevent the optical characteristics decline of the imaging on the photoconductor drum 3.

Isolator member 6 mainly is made of glass or plastic material, and lens arra 5 is by constituting than plastics of isolator member 6 softnesses etc., so the modular ratio isolator member 6 of lens arra 5 is little.Therefore, also can only be bonded with each other isolator member 6 and lens arra 5, promptly replace the second cementing agent 14b, engage with the first cementing agent 14a with the first cementing agent 14a.When doing like this, lens arra 5 absorbs the distortion that the difference owing to the coefficient of thermal expansion of isolator member 6 and lens arra 5 produces.Therefore, to be difficult to perk be circular-arc to printhead 2.

Distortion (perk) that promptly we can say printhead 2 is that the rigidity of each part (array of source 4, lens arra 5 and isolator member 6) causes to a great extent.Therefore, can only engage isolator member 6 and lens arra 5 with the first cementing agent 14a, and as array of source 4 and isolator member 6, coefficient of thermal expansion is different respectively, and during each other joint of the strong material of rigidity, the influence that distortion causes is big, based on the joint of the first cementing agent 13a, is easy to generate distortion (perk) with only.

In addition, in the first above-mentioned embodiment, illustrate that the first cementing agent 13a, 14a are coated in the situation (with reference to Fig. 4) of each self-corresponding end of the device substrate 7 of array of source 4, lens arra 5 and isolator member 6 respectively.; as shown in Figure 6; long side direction central portion at device substrate 7, lens arra 5 and the isolator member 6 of array of source 4; stride Width (short side direction) roughly all of printhead 2; apply the first cementing agent 13a, 14a, the adhesive surface beyond this first cementing agent 13a, 14a applies the second cementing agent 13c, 13d, 14c, 14d.

In such structure, the situation that applies the first cementing agent 13a, 14a with a end at device substrate 7, lens arra 5 and the isolator member 6 of array of source 4 is compared, between keeping separately more reliably apart from d1, d2, and can keep stable engagement state.

It should be noted that, at this moment also same with the second cementing agent 13b, 14b, the second cementing agent 13c, 13d, 14c, 14d use and are made of gel constituent or the rubber-like constituent littler than the elastic modulus of the first cementing agent 13a, 14a softness respectively, and have the refractive index same with the first cementing agent 13a, 14a, the cementing agent of photopermeability.

Have again, in the first above-mentioned embodiment, can replace the second cementing agent 13b, 14b, 13c, 13d, 14c, 14d, can use does not have cohesiveness and hardening yet yet, has the liquid (for example silicone oil) of the refractive index same with the first cementing agent 13a, 14a, photopermeability.Even like this liquid is injected device substrate 7 and the gap of isolator member 6 and the gap of isolator member 6 and lens arra 5 of array of source 4, each gap d 1, d2 are about 10 μ m, so by surface tension, in the gap, keep, can not overflow from printhead 2.

If replace the second cementing agent 13b, 14b, 13 c, 13d, 14c, 14d, use liquid, then compare with the second cementing agent 13b, 14b, 13c, 13d, 14c, 14d, can more effectively absorb the telescopic variation that the difference of coefficient of thermal expansion causes by each part.Therefore, can prevent the decline of the optical characteristics of the imaging of formation on the photoconductor drum 3 more reliably.

In addition, only with behind the first cementing agent 13a, 14a joint element substrate 7, isolator member 6 and the lens arra 5, only by injecting liquid in these gaps, manufacturing operation just finishes, so can shorten the activity duration.

In addition, apply the first cementing agent 13a, 14a, just can determine the interval that array of source 4, lens arra 5 and isolator member 6 are mutual, do not have the second cementing agent 13b, 14b, 13c, 13d, 14c, 14d or liquid, also can use printhead 2 at each position., at this moment, not only the mutual alignment of each part relation becomes unstable, and has air between array of source 4 and lens arra 5, so descend from the ratio to lens arra 5 quantity of incident light in the emergent light of array of source 4.Adhesive surface (gap portion) beyond the coating first cementing agent 13a, 14a is buried the second cementing agent 13b, 14b, 13c, 13d, 14c, 14d or liquid, thereby the mutual alignment of each part relation is stable, and can make from the ratio to lens arra 5 quantity of incident light in the emergent light of array of source 4 and increase.

Second embodiment

Below, according to Fig. 2, Fig. 3, Fig. 7, Fig. 8, second embodiment of the present invention is described.The key element identical with first embodiment paid identical symbol, describe.

In second embodiment, it is same that printer 30 has the basic structure and described first embodiment of printhead 31 and photoconductor drum 3.

Fig. 7 is the stereographic map of partial structurtes of the printer 30 of the expression printhead 31 of using second embodiment.Fig. 8 is the side view of printhead 31.

The printhead 2 of first embodiment has array of source 4, lens arra 5, is arranged on the isolator member 6 between array of source 4 and the lens arra 5, is engaged by cementing agent 13,14 respectively.And in the printhead 31 of second embodiment, as shown in Figure 7, have array of source 4 and lens arra 5, and between these array of source 4 and lens arra 5, there is not isolator member 6, directly connect array of source 4 and lens arra 5 by cementing agent 13.

As shown in Figure 8, array of source 4 and lens arra 5 are engaged by the cementing agent 13 of photopermeability each other.

Cementing agent 13 is made of the first cementing agent 13a and two kinds of cementing agents of the second cementing agent 13b.In array of source 4 and lens arra 5 each self-corresponding end (right side of Fig. 8), stride the Width (short side direction) of printhead 31, apply the first cementing agent 13a, 14a.

On the other hand, the second cementing agent 13b be coated in the coating the first cementing agent 13a part beyond array of source 4 and the adhesive surface of lens arra 5.The second cementing agent 13b is on adhesive surface, and its occupied area is set at bigger than the occupied area of the first cementing agent 13a.

Therefore, according to the second above-mentioned embodiment, can obtain the effect same with first embodiment.Between array of source 4 and lens arra 5, there is not isolator member 6, buries between the two with the cementing agent 13 of photopermeability.Therefore, can increase from the emergent light of array of source 4 to the ratio (utilization ratio of light) of lens arra 5 quantity of incident light, can reduce number of spare parts.

In the second above-mentioned embodiment, explanation applies the situation (with reference to Fig. 8) of the first cementing agent 13a in each self-corresponding end of the device substrate 7 of array of source 4 and lens arra 5, but as shown in Figure 9, also can be at the device substrate 7 of array of source 4 and the long side direction central portion of lens arra 5, stride the Width (short side direction) of printhead 31, apply the first cementing agent 13a, the adhesive surface beyond this first cementing agent 13a applies the second cementing agent 13c, 13d.

If constitute like this, when applying the first cementing agent 13a, a end at the device substrate 7 of array of source 4 and lens arra 5 compares, the device substrate 7 of array of source 4 and the distance between the lens arra 5 can be kept more reliably, and stable engagement state can be kept.

The first above-mentioned embodiment, the printhead of second embodiment 2,31 can use in the printer 1 (image processing system) of electrofax mode.The back is described printer in detail.In such printer, has the printhead 2,31 of embodiment, so printhead 2 when temperature rises, also can prevent perk.Therefore, can provide the optical characteristics that can prevent the imaging of formation on the photoconductor drum 3 to descend, realize the printer of the excellence of high-quality output image.In addition, improve print speed, the printer that print quality and reliability are also excellent even can provide.

In addition, in each above-mentioned embodiment, as according to the electric energy that provides and a plurality of electrooptic cells that see through characteristic variations of the characteristics of luminescence or light, adopt the compound excitation that causes of charge carrier as necessary organic EL, but also can adopt not excitation as necessary light-emitting component (for example inorganic LED element), according to the electric energy that provides and light through the light valve component (for example liquid crystal cell) of characteristic variations etc.

In described embodiment, be that example describes with the organic El device of bottom emissive type, but also can in the organic El device of top emission structure, use.The pixel capacitors of the organic El device of top emission structure is made of the metal material of high reflectances such as Al or Cr, but in order to improve the hole injection, hope is at the surperficial stacked formation ITO of metal material (indium tin oxid), IZO transparent conductivity materials such as (registered trademark, indium zinc oxide).

In the above-described embodiment, the situation of printhead 2,31 when temperature rises is described, but for example as when cold local the use, when temperature descends, because the difference of the coefficient of thermal expansion of array of source 4, lens arra 5 and isolator member 6, when producing distortion, can pass through the second cementing agent 13b, 14b or this distortion of Liquid Absorption, so do not worry that printhead 2,31 perks are circular-arc.

In addition, in the above-described embodiment, cementing agent 13,14 is made of the first cementing agent 13a, 14a and two kinds of cementing agents such as the second cementing agent 13b, 14b (13c, 13d, 14c, 14d)., cementing agent 13,14 also can be made of the cementing agent more than two kinds.At this moment, one in a plurality of cementing agents as first cementing agent, promptly as the fixing adhesive acts of using that always keeps the interval of the interval of interval, isolator member 6 and lens arra 5 of the device substrate 7 of array of source 4 and isolator member 6 or array of source 4 and lens arra 5 with the interval of regulation, and the refractive index of whole cementing agents can be identical with photopermeability.

In the above-described embodiment, illustrate that the first cementing agent 13a, 14a are the situation of same kind., the present invention is not limited thereto, if use adhesive acts as fixing, and refractive index is identical with photopermeability, and then first cementing agent can be different types of cementing agent.

And, in the first above-mentioned embodiment, end (right side among Fig. 4) at device substrate 7, lens arra 5 and the isolator member 6 of array of source 4, stride Width (short side direction) roughly all of printhead 2, coating each the first cementing agent 13a, 14a, perhaps at the long side direction central portion of device substrate 7, lens arra 5 and the isolator member 6 of array of source 4, stride short side direction roughly all of printhead 2, apply the first cementing agent 13a, 14a., the position that applies the first cementing agent 13a, 14a is not limited to these, if on each adhesive surface, just can be the optional position.

In addition, in the second above-mentioned embodiment, end (right side among Fig. 8) at array of source 4 and lens arra 5, stride Width (short side direction) the coating first cementing agent 13a of printhead 31, perhaps at the device substrate 7 of array of source 4 and the long side direction central portion of lens arra 5, stride the Width (short side direction) of printhead 31, apply the first cementing agent 13a., the position that applies the first cementing agent 13a, 14a is not limited to these, if on each adhesive surface, just can be the optional position.

In addition, in the above-described embodiment, on each adhesive surface, the occupied area of the second cementing agent 13b, 14b (13c, 13d, 14c, 14d) is set at bigger than the occupied area of the first cementing agent 13a, 14a., the present invention is not limited thereto, and the occupied area of the first cementing agent 13a, 14a also can be set at bigger than the occupied area of the second cementing agent 13b, 14b (13c, 13d, 14c, 14d)., compare when big, absorb the ability drop of the different distortions that cause of the coefficient of thermal expansion of array of source 4, lens arra 5 and isolator member 6 with the occupied area of the second cementing agent 13b, 14b (13c, 13d, 14c, 14d).The occupied area that is the second cementing agent 13b, 14b (13c, 13d, 14c, 14d) on each adhesive surface is big more, absorbing deformation ability improves more, and the occupied area of the second cementing agent 13b, 14b (13c, 13d, 14c, 14d) is more little, and the ability that absorbs distortion descends more.

The coefficient of thermal expansion situation bigger than the coefficient of thermal expansion of array of source 4 of the coefficient of thermal expansion or the lens arra 5 of isolator member 6 is described in the above-described embodiment., the present invention is not limited thereto, when the coefficient of thermal expansion of each part (array of source 4, isolator member 6, lens arra 5) is different, also can produce the effect same with present embodiment.

The 3rd embodiment

Here, the conventional art that becomes basis of the present invention is described.Figure 10 is the stereographic map of summary of representing the part of image processing system in the past.In this image processing system, between luminescent panel 120 that is provided with the EL element array and photoconductor drum 110, dispose optically focused lens arra 140, between luminescent panel 120 and optically focused lens arra 140, dispose the isolator 170 of photopermeability.As mentioned above, as optically focused lens arra 140, the SLA (selfoc lens array) (self-focusing/SELFOC is the registered trademark of Nippon Sheet Glass Co Ltd) that can obtain from Nippon Sheet Glass Co Ltd is for example arranged.

Figure 11 is the stereographic map of the summary of expression optically focused lens arra 140.Optically focused lens arra 140 has the arranged in patterns a plurality of refractive index distribution lens 141 in one direction with two row and zigzag shape.Each refractive index distribution lens 141 is low in the refractive index of central shaft, leave central shaft more, refractive index is got over the graded index fiber that the highland forms, and makes the light transmission that advances from luminescent panel 120, at the erect image that forms on the photoconductor drum 110 for the picture on the luminescent panel 120.The picture of being obtained by these a plurality of refractive index distribution lens 141 constitutes a continuous picture on photoconductor drum 110.

Figure 12 is the cut-open view when using face with the orientation of refractive index distribution lens 141 (below be called " directions X ") quadrature to cut off optically focused lens arra 140.Operating distance (Lo), operating distance (Li), conjugate length (TC) that object one side is arranged in the optical range of optically focused lens arra 140 as shown in the figure, as a side.In order fully to improve the optical characteristics (for example vividness) of imaging, it is consistent with Li that photoconductor drum 110 and optically focused lens arra 140 are configured to the interval (Di) of light-emitting face S1 of the imaging surface P of photoconductor drum 110 and optically focused lens arra 140, and luminescent panel 120 is consistent with Lo with the interval (Do) of the light entrance face S2 of light-emitting area Q in optically focused lens arra 140 is configured to luminescent panel 120 and optically focused lens arra 140.

Figure 13 is the side view of summary of representing the part of image processing system in the past.As shown in figure 13, the Li of optically focused lens arra 140 and Lo have deviation usually on directions X.For example, when the primary importance (x1) that is conceived to arrange in order, the second place (x2), the 3rd position (x3), the Li[x1 of each position at directions X], Li[x2] and Li[x3] differ from one another the Lo[x1 of each position], Lo[x2] and Lo[x3] differ from one another.Particularly, Li[x1]＜Li[x3]＜＜Li[x2], Lo[x1]＜Lo[x3]＜＜Lo[x2].

From above-mentioned example as can be known, the deviation of the Li of directions X and Lo can become non-linear.And imaging surface P, light-emitting face S1, light entrance face S2 and light-emitting area Q are respectively smooth at directions X.Therefore, be difficult to dispose photoconductor drum 110 with optically focused lens arra 140 so that Di is consistent with high precision with the total length of Li optically focused lens 140, perhaps be difficult to dispose luminescent panel 120 with optically focused lens arra 140 so that Do is consistent with high precision with the total length that Lo strides optically focused lens arra 140.Therefore, in image processing system in the past, the optical characteristics of imaging might have very big deviation on directions X.

Figure 14 is the curve map to the characteristic of the imaging radius R of Di of representing image processing system in the past.The imaging radius R is the radius of the picture of the EL element that forms on imaging surface P.The imaging radius R is more little, and the optical characteristics of imaging improves more.Characteristic line C1 represents that Do and consistent with the Lo desirable difference of (Bo) at interval are the characteristic of 0 position (position of directions X).When peaked 1/2 of the difference of Lo and Bo is a (a＞0), characteristic line C2 represents that the difference of Do and Bo is the characteristic of the position (position of directions X) of a, and characteristic line C3 represents that the difference of Do and Bo is the characteristic of 2 times the position (position of directions X) of a.

From the relative position of characteristic line C1～C3 as can be known, the difference of Do and Bo is more little, and the imaging radius R is more little.In addition, from the shape separately of characteristic line C1～C3 as can be known, the difference of Di and desirable at interval (Bi) consistent with Li is more little, and the imaging radius R is more little.For example, at characteristic line C1, the difference of Di and Bi be the imaging radius R (r1) of 0 o'clock (some T1) when being b than the difference of Di and Bi the imaging radius R (r2) of (each point T2) also little, the imaging radius R (r3) of (each point T3) was also little when r2 was 2 times of b than the difference of Di and Bi.Wherein, b＞0.

When peaked 1/2 of the difference of Li and Bi was b, the maximum of the imaging radius R of image processing system in the past change width (W1) was the difference of r1 and r4.R4 is that the difference of Di and Bi is 2 times of b, and the difference of Do and Bo is the imaging radius R of 2 times the some T4 of a.The optical characteristics of the imaging of image processing system in the past might have very big deviation on directions X be because W1 is excessive.The 3rd embodiment and the 4th embodiment solve this problem.

Below, the electro-optical device 1A of third embodiment of the invention is described.In electro-optical device 1A, isolator is a layer of the optical axis of crosscut refractive index distribution lens, and in this layer, a plurality of members that refractive index differs from one another are arranged in one direction.Below, describe in detail.

The structure of electro-optical device 1A at first, is described.

Figure 15 is the planimetric map of electro-optical device 1A, and Figure 16 is the side view (front view) of electro-optical device 1A.The isolator 80 of the photopermeability that electro-optical device 1A has luminescent panel (electrooptic panel) 120, optically focused lens arra 140, clipped by luminescent panel and optically focused lens arra 140.Luminescent panel 120 have photopermeability device substrate 122, be formed on a plurality of EL element 121 on the device substrate 122, cover the seal 123 of these EL element 121, the light-emitting face S3 from device substrate 122 1 sides penetrates from the light of each EL element 121.

Each EL element 121 is according to the electric energy that provides and the electrooptic cell that the characteristics of luminescence changes, particularly, be the luminescent layer with excitation luminescence, the pair of electrodes that clips this luminescent layer, carry out luminous organic EL according to acting on this a pair of interelectrode voltage by the compound of the charge carrier that injects.The electrode of device substrate 122 1 sides is ITO transparency electrodes such as (Indium Tin Oxide) in these pair of electrodes.The wiring of driving voltage is provided providing to each EL element 121 at luminescent panel 120.It should be noted that, the circuit component (for example TFT (thin film transistor (TFT))) of driving voltage also can be provided providing to each EL element 121 at luminescent panel 120.

Device substrate 122 is the flat boards that formed by glass or transparent photopermeability materials such as plastics, and its refractive index is n ₂EL element 121 zigzag shape on device substrate 122 is arranged as 2 row, and the plane by these device substrates 122 becomes light-emitting area Q.Seal 123 is installed on the device substrate 122, cooperates with device substrate 122, from extraneous gas, particularly isolates EL element 121 from moisture and oxygen, suppresses its deterioration.

Optically focused lens arra 140 sees through the part of the light that incides its light entrance face S2, penetrate from its light-emitting face S1, have and make the light transmission that advances from luminescent panel 120, can form a plurality of refractive index distribution lens 141 of the erect image of picture (picture on the luminescent panel 120) for light-emitting area Q.The light-emitting face S3 of light entrance face S2 and luminescent panel 120 is opposite each other, and is the thickness of the interval (Do) of light-emitting area Q and light-emitting face S3 and the thickness of device substrate 122 and isolator 80 and roughly consistent.It is consistent with the operating distance (Li) of picture one side of optically focused lens arra 140 that electro-optical device 1A is configured to the interval (Di) of light-emitting face S1 and imaging surface P.

Each refractive index distribution lens 141 is arranged as 2 row at directions X zigzag shape, with the region overlapping that is formed with EL element 121 of luminescent panel 120.The picture of being obtained by a plurality of refractive index distribution lens 141 constitutes a continuous picture.It should be noted that the Pareto diagram of EL element 121 and refractive index distribution lens 141 is not limited to illustrated form respectively, can be single-row or more than three row, can be with other suitable arranged in patterns.

Isolator 80 is to be filled between luminescent panel 120 and the optically focused lens arra 140, make both layers that is spaced apart the same uniform thickness, the optical axis extending of each refractive index distribution lens 141 of crosscut, a plurality of members 81～83 by the rectangular parallelepiped that connects at directions X that forms with glass or transparent plastics constitute, and make the light transmission that advances from luminescent panel 120.The Zone Full of the face of luminescent panel 120 1 sides contacts with the light-emitting face S3 of luminescent panel 120 in the face of isolator 80, and the Zone Full of the light entrance face S2 of optically focused lens arra 140 contacts with the face of optically focused lens arra 140 1 sides.

A plurality of members 81～83 contact with the light-emitting face S3 of luminescent panel 120 and the light entrance face S2 of optically focused lens arra 140.The refractive index of member 82 is n ₃, clipping the member 81 of member 82 and the refractive index of member 83 all is n ₁Promptly at isolator 80, a plurality of members that refractive index differs from one another are continuous at directions X.Therefore, the optical range between light-emitting area Q and the light entrance face S2 becomes various at directions X.

n ₁～n ₃, isolator 80 thickness, (each member 81～83 occupy zone) determines to satisfying expression formula (1) according to the operating distance (Lo) of object one side of optically focused lens arra 140 in zone that each member 81～83 of directions X occupies.

$\mathrm{Lo}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}\frac{d_1}{n_i}......\left(1\right)$

In expression formula (1), m is the number of plies between light-emitting area Q and the light entrance face S2.In the present embodiment, isolator 80 or device substrate 122 constitute a layer respectively.n _iAnd d _iBe the refractive index and the thickness of i layer.

Usually, according to the specification that luminescent panel 120 should satisfy, the refractive index (n of decision device substrate 122 ₂).In addition, the thickness of isolator 80 is the same at directions X.Therefore, be the refractive index (n of member 81 and member 83 according to the determining positions of directions X ₃), the refractive index (n of member 82 ₁), each member 81～83 occupy the zone.About them, particularly, as shown in figure 16, decision is by than high index (n ₁) the member 81 that forms of material occupy near the primary importance (x1), by than high index (n ₁) the member 83 that forms of material occupy near the 3rd position (x3), by low-refraction (n relatively ₃) the member 82 that forms of material occupy near the second place (x2).Therefore, if relatively Figure 13 and Figure 16, just as can be known, the shift suppression that can leave the light entrance face S2 from optically focused lens arra 140 face of desirable (Bo) at interval consistent with Lo and light-emitting area Q is very little.Bo be the optical range of light-emitting area Q and light entrance face S2 when consistent with Lo light-emitting area Q and the interval of light entrance face S2.

Figure 17 is expression the curve map for the characteristic of the imaging radius R of Di of electro-optical device 1A as the image processing system of bare headed portion use.The imaging radius R is the radius at the picture of the EL element of imaging surface P formation.The imaging radius R is more little, and the optical characteristics of imaging is high more.Among characteristic line C1～C6, characteristic line C1～C3 is with shown in Figure 13 identical, and characteristic line C4～C6 represents the characteristic of electro-optical device 1A.

Characteristic line C4 represents that the difference of Do and Bo is the characteristic of 0 position (position of directions X), characteristic line C5 represents peaked 1/2 (g＞0) when the g of the difference of Lo and Bo, the difference of Do and Bo is the characteristic of the position (position of directions X) of g, characteristic line C6 represent Lo and Bo difference peaked 1/2 when the g Do and the difference of Bo be the characteristic of 2 times the position (position of directions X) of g.Characteristic line C4 and characteristic line C1 are in full accord.

As mentioned above, in electro-optical device 1A, leave the shift suppression of the face of Bo and light-emitting area Q for very little from the light entrance face S2 of optically focused lens arra 140.Therefore, this value of the maximal value of the difference of Do and Bo ratio image processing system in the past is little.Be g＜a.Therefore, as shown in figure 17, the closeness height of closeness ratio characteristic line C1～C3 of characteristic line C4～C6 is littler than W1 as the maximum change width (W2) of the imaging radius R of the image processing system of bare headed portion use electro-optical device 1A.It should be noted that W2 is the difference of r1 and r5, r5 is that the difference of Di and Bi is 2 times of b, and the difference of Do and Bo is the imaging radius R of 2 times the some T5 of g.

As mentioned above, electro-optical device 1A has: luminescent panel 120; Arrange make the light transmission that advances from luminescent panel 120 and can form a plurality ofly in one direction for the refractive index distribution lens 141 of the erect image of the picture on the luminescent panel 120, the picture of being obtained by a plurality of refractive index distribution lens 141 constitutes the optically focused lens arra 140 of a continuous picture; Clip by luminescent panel 120 and optically focused lens arra 140, make the isolator 80 of the light transmission that advances from luminescent panel 120.In addition, in isolator 80, a plurality of members that refractive index differs from one another (member 81 and member 82 or member 82 and member 83) are connected at directions X.Therefore, according to electro-optical device 1A, although at directions X, luminescent panel 120 is the same with the interval of optically focused lens arra 140, can make the optical range difference between luminescent panel 120 and the optically focused lens arra 140.In addition, in electro-optical device 1A, according to the Lo of optically focused lens arra 140, the configuration of suitable decision member 81～83 or the refractive index of each member.Therefore, according to electro-optical device 1A, can reduce the deviation of optical characteristics of the imaging of directions X.

The manufacture method of the 3rd embodiment

Below, the manufacture method of the electro-optical device 1A of the 3rd embodiment is described.As the manufacture method of electro-optical device 1A, consider multiple method.Here, enumerate first manufacture method and second manufacture method.

First manufacture method of the 3rd embodiment

In first manufacture method, at first make luminescent panel 120 and isolator 80.In the manufacturing of luminescent panel 120, refractive index n ₂The flat board of photopermeability use as device substrate 122, on this flat board, EL element 121 is arranged as 2 row with the zigzag shape.In the manufacturing of isolator 80, at first measure the Lo of optically focused lens arra 140.In this is measured, between light source and optically focused lens arra 140, only there is air, the relative position of light source and optically focused lens arra 140 is variable, in the system that the relative position of optically focused lens arra 140 and imaging surface is fixed, stride the total length of optically focused lens arra 140, repeat based on sending from light source, the light-emitting area that the radius of imaging that sees through the light of optically focused lens arra 140 becomes hour and the interval of optically focused lens arra 140 are made as the operation of Lo.

In the manufacturing of isolator 80, then according to the Lo that measures, refractive index, size and the configuration separately of decision member 81～83, then engagement member 81～83.Particularly, the decision of the refractive index of member 81 and member 83 is n ₁, the refractive index decision of member 82 is n ₃Determine the zone of occupying of each member 81～83, thereby engagement member 81～83 o'clock, in one direction, have member 82 between member 81 and member 83, when a described direction was consistent with directions X, member 81 occupied near the primary importance (x1), member 82 occupies near the second place (x2), and member 83 occupies near the 3rd position (x3).

Then, as shown in figure 18, engage isolator 80 at luminescent panel 120.This joint is to carry out in the following manner, the wideest the Zone Full that is a side of isolator 80 contacts with the light-emitting face S3 of luminescent panel 120, the Zone Full in the zone that is formed with EL element 121 of luminescent panel 120 and this wideest are overlapping, and a described direction is consistent with the orientation of EL element 121.Then, as shown in figure 19, engage optically focused lens arra 140 at isolator 80.This joint carries out in the following manner, the wideest of the opposing party of Zone Full and isolator 80 who is the light entrance face S2 of optically focused lens arra 140 contacts, the orientation (directions X) of the refractive index distribution lens 141 of optically focused lens arra 140 is consistent with a described direction, the region overlapping that is formed with EL element 121 of each refractive index distribution lens 141 and luminescent panel 120.

Then, the fixing relative position of luminescent panel 120 and isolator 80 and optically focused lens arra 140.Fixing method is arbitrarily, for example can engage the side of isolator 80 with luminescent panel 120 and optically focused lens arra 140, also can rely on luminescent panel 120 and optically focused lens arra 140 in the box of isolator 80 1 sides, collection is luminescent panel 120 and isolator 80 and optically focused lens arra 140 fixedly.

Second manufacture method of the 3rd embodiment

In second manufacture method, at first make luminescent panel 120 and member 82.In the manufacturing of member 82, at first measure the Lo of optically focused lens arra 140, then according to the Lo that measures, refractive index separately, size and the configuration of decision member 81～83 form member 82.

Then, as shown in figure 20, engage isolator 80, engage optically focused lens arra 140 at isolator 80 at luminescent panel 120.Then as shown in figure 21, the refractive index after injecting sclerosis between luminescent panel 120 and the optically focused lens arra 140 is n ₁Transparent cementing agent, make its sclerosis, as member 81 and 83.It should be noted that, in order to prevent to have the outflow of mobile presclerotic cementing agent, cementing agent is solidified as the shape of regulation, also can use lead-frame.

The 4th embodiment

The following describes the electro-optical device 1B of four embodiment of the invention.In this electro-optical device 1B, isolator has a plurality of layers of the optical axis of crosscut refractive index distribution lens, and at least 2 of these layers, a plurality of members that refractive index differs from one another are arranged in one direction.Below, describe the point different in detail with the electro-optical device 1A of the 3rd embodiment.

The structure of electro-optical device 1B at first, is described.

Figure 22 is the side view (front view) of electro-optical device 1B.The difference of electro-optical device 1B and electro-optical device 1A is, replaces isolator 80, has isolator 90.Isolator 90 is to be filled between luminescent panel 120 and the optically focused lens arra 140, make both the same parts in interval, multilayer 91～93 by the photopermeability of the optical axis extending of each refractive index distribution lens 141 of crosscut constitutes, and makes the light transmission that advances from luminescent panel 120.

Layer 91 is by the isolator main body of layer 92 and layer 93 uniform thickness that clips, and is formed by glass or transparent plastics.The refractive index of layer 91 is n ₁The face of layer 91 luminescent panel 120 1 side comprehensively with the full engagement of the face of optically focused lens arra 140 1 sides of layer 92, the face of optically focused lens arra 140 1 sides of layer 91 comprehensively with the full engagement of the face of luminescent panel 120 1 sides of layer 93.

Layer 92 is tack coats of the uniform thickness that clipped by layer 91 and luminescent panel 120, is made of a plurality of members 921～923 of the rectangular parallelepiped that connects at directions X.Member 922 is by refractive index n ₆Transparent cementing agent form, member 921 and member 923 are respectively by refractive index n ₅Transparent cementing agent form.Promptly at layer 92, the member that refractive index differs from one another connects at directions X.

Layer 93 is tack coats by the uniform thickness that clips of layer 91 and optically focused lens arra 140, is made of a plurality of members 931～933 of the rectangular parallelepiped that connects at directions X.Member 931 is by refractive index n ₅Transparent cementing agent form, member 932 is by refractive index n ₆Transparent cementing agent form.Promptly in layer 93, the member that refractive index differs from one another connects at directions X.The distribution of the refractive index of a plurality of members that comprise in the distribution of the refractive index of these members and the layer 92 is inconsistent fully.I.e. two distributions differ from one another.

According to the Lo of optically focused lens arra 140, n ₂, n ₄～n ₆, layer each thickness of 91～93, (each member 921～923,931～932 occupy zone) decision is for satisfying expression formula (1) in zone that each member 921～923,931～932 of directions X occupies.n ₂Usually the specification decision that should satisfy according to luminescent panel 120, the refractive index (n of layer 91 ₄) and layer each thickness of 91～93 be the same at directions X, so be n according to the determining positions of directions X ₅, n ₆, each member 921～923,931～932 occupy the zone.

From above explanation as can be known, electro-optical device 1B produces and the same effect of electro-optical device 1A.In addition, when any one party of layer 92 or layer 93 does not exist, use refractive index n ₅Member and refractive index n ₆Member, make the optical range variation between light-emitting area Q and the light entrance face S2, obtain 2 kinds of optical ranges only, but in electro-optical device 1B, isolator 90 has layers 93 of layer 92 member different with comprising refractive index that comprise the different member of refractive index, the distribution of the refractive index of a plurality of members that comprise in the layer 92 is different with the distribution of the refractive index of the member of layer 93, so can obtain more optical range.This is the skew of optical characteristics that helps further to reduce the imaging of directions X.

The manufacture method of the 4th embodiment

Below, the manufacture method of the electro-optical device 1B of the 4th embodiment is described.As the manufacture method of electro-optical device 1B, consider several different methods.Here, enumerate a manufacture method.

At first, make luminescent panel 120 and layer 91.In the manufacturing of layer 91, at first measure the Lo of optically focused lens arra 140, then according to the Lo that measures, the refractive index of the refractive index of decision layer 91 and thickness, each member 921～923,931,932 and occupy the zone then forms refractive index n ₄The layer 91.

Then, as shown in figure 23, the refractive index after occupying of the member 922 on the light-emitting face S3 of luminescent panel 120 of regional coating sclerosis is n ₆Transparent cementing agent, this cementing agent is compressed to thickness by luminescent panel 120 and layer 91 decision, under this state, harden.Promptly at luminescent panel 120 knitting layers 91.The cementing agent of sclerosis becomes member 922.Then, as shown in figure 24, the refractive index after injecting sclerosis between luminescent panel 120 and the layer 91 is n ₅Transparent cementing agent, make its sclerosis.The cementing agent of sclerosis becomes member 921 and member 923.

Then, as shown in figure 25, be n in the refractive index of occupying after the coating sclerosis of zone of the member 932 on the face of optically focused lens arra 140 1 sides of layer 91 ₆Transparent cementing agent, this cementing agent is compressed to thickness by 140 decisions of layer 91 and optically focused lens arra, under this state, harden.Promptly engage optically focused lens arra 140 at layer 91.The cementing agent of sclerosis becomes member 932.Then, as shown in figure 26, the refractive index after injecting sclerosis between layer 91 and the optically focused lens arra 140 is n ₅Transparent cementing agent, make its sclerosis.The cementing agent of sclerosis becomes member 931.

It should be noted that, in coating or inject the step of cementing agent, in order to prevent to have the outflow of mobile presclerotic cementing agent, cementing agent is solidified as the shape of expectation, also can use lead-frame.In addition, suitable for the cementing agent that makes compression reliably, material is guaranteed at the interval that can comprise solid in the cementing agent of compression.As at interval guaranteeing that material, hope are to have photopermeability, spherical, have much at one refractive index materials with on every side cementing agent.

In the 4th above-mentioned embodiment, layer 92 has the different material of refractive index respectively with layer 93, but also can be out of shape it, and any one party that becomes layer 92 and layer 93 has the form of the different material of refractive index.In addition, also can in isolator 80, comprise the irrelevant member that sees through to above-mentioned the 3rd embodiment distortion with the light that comes self-emission panel 120.Same therewith, also can be the distortion of above-mentioned the 4th embodiment, comprise the irrelevant member that sees through with the light that comes self-emission panel 120 at least one side of layer 92 and layer 93.Can also become the mode that in isolator, comprises the layer more than 3 to above-mentioned embodiment distortion with the different respectively member of refractive index.

In above-mentioned the 3rd embodiment and the 4th embodiment, the light transmission device substrate 122 that use is sent from each EL element 121, from the luminescent panel 120 of the bottom-emission type of luminescent panel 120 outgoing, but also can use luminescent panel to the top emission type of the direction emergent light opposite with it.That is to say that making the object of the light transmission that advances from a plurality of electrooptic cells can be seal.At this moment, the photopermeability of decision each several part, thus do not block the light that sends and advance to seal one side from each EL element.

In addition, in above-mentioned the 3rd embodiment and the 4th embodiment, as according to the electric energy that provides and a plurality of electrooptic cells that see through characteristic variations of the characteristics of luminescence or light, adopt the compound excitation that causes of charge carrier as necessary organic EL, but also can adopt charge carrier compound not as necessary light-emitting component (for example inorganic EL element), excitation not as necessary light-emitting component (for example inorganic LED), according to the electric energy that provides and the light valve component (for example liquid crystal cell) through characteristic variations of light.

The 5th embodiment

Problem below in the image processing system in the past that reference Figure 10～Figure 14 describes, existing.In the light-emitting components such as EL element that constitute described luminescent panel 120, as shown in figure 27, there is the deviation of lightness (brightness or power).A0 among the figure represents the lightness of the light that penetrates from light-emitting component, and A1 ' is illustrated in the lightness that the picture load is held the imaging surface of body etc.Described deviation is because the manufacture deviation of light-emitting component etc.Exist under the state of deviation in the lightness of such light-emitting component, if form electrostatic latent image, deep or light difference or the gradation unequal of appearance spared in the then final image that develops, and can't obtain beautiful picture.Therefore, skew for the lightness of eliminating described light-emitting component, open the 2006-289721 communique as the spy, propose on driving circuits such as driver IC, to be provided with the function of revising described deviation (for example, the adjustment of the adjustment of electric current and voltage, fluorescent lifetime etc.).

, if described function is set on driving circuit, then not only driving circuit maximizes, and is unfavorable for the miniaturization of luminescent panel, the problem that also exists cost to improve.In addition, for the deviation of the lightness of revising light-emitting component, must carry out mensuration, electric current and the voltage of the lightness of light-emitting component or the adjustment of fluorescent lifetime repeatedly, so need very big labour and time, cost of manufacture increases inefficiently.The 5th embodiment and the 6th embodiment solve this problem.

Figure 28 is the planimetric map of the 5th embodiment of expression electro-optical device of the present invention, and Figure 29 is the side view of this electro-optical device of expression.The electro-optical device IC of illustrated example has luminescent panel (electrooptic panel) 220, optically focused lens arra 140, is present in the light-transmitting member (isolator) 30 between this luminescent panel and the optically focused lens arra 140.Described luminescent panel 220 have photopermeability device substrate (array base palte) 222, be formed on a plurality of light-emitting components 221 on the device substrate 222, cover the seal 223 of these light-emitting components 221 as electrooptic cell.Light-emitting face (in the drawings) S13 from device substrate 222 penetrates from the light of each light-emitting component 221.

Described each light-emitting component 221 is according to the electric energy that provides and the electrooptic cell that the characteristics of luminescence changes, particularly, be the luminescent layer with excitation luminescence, the pair of electrodes that clips this luminescent layer, carry out luminous organic EL according to the voltage that between this a pair of electrode, acts on by the compound of the charge carrier that injects.In this a pair of electrode, the electrode of device substrate 222 1 sides is transparency electrodes of ITO (Indium Tin oxide) etc.The wiring of driving voltage also can be provided providing to each light-emitting component 221 at luminescent panel 220.In addition, also can be provided for providing the circuit component (for example TFT (thin film transistor (TFT))) of driving voltage to each light-emitting component 221 at luminescent panel 220.

Device substrate 222 is flat boards that the material by glass or transparent photopermeabilities such as plastics forms, and on this device substrate 222, light-emitting component 221 zigzag shape is in one direction arranged, and the plane by these light-emitting components 221 becomes light-emitting area Q.Seal 223 is installed in device substrate 222, cooperates with device substrate 222, from extraneous gas, particularly isolates light-emitting component 221 from moisture and oxygen, suppresses its deterioration.

Optically focused lens arra 140 sees through the part of the light of its light entrance face of incident S12, penetrate from its light-emitting face S11, have and make the light transmission that advances from luminescent panel 220, can form a plurality of refractive index distribution lens 141 of the erect image of picture (picture on the luminescent panel 220) for light-emitting area Q.The light entrance face S12 of optically focused lens arra 140 and the light-emitting face S13 of luminescent panel 220 toward each other, the interval of light-emitting area Q and light-emitting face S13 is roughly consistent with the thickness sum of the thickness of device substrate 222 and light-transmitting member 30.In described electro-optical device 1C, the interval that is configured to light-emitting face S11 and imaging surface P is consistent with the operating distance of picture one side of optically focused lens arra 140.

Described each refractive index distribution lens 141 is arranged at a direction (directions X) zigzag shape, as shown in figure 28 with the region overlapping that is formed with light-emitting component 221 of luminescent panel 220.The picture of being obtained by a plurality of refractive index distribution lens 141 constitutes a continuous picture.It should be noted that the Pareto diagram of light-emitting component 221 and refractive index distribution lens 141 is not limited to illustrated form respectively, also can be for single-row or more than 3 row, also can be with other suitable arranged in patterns.

Light-transmitting member 30 is to be present between luminescent panel 220 and the optically focused lens arra 140, both intervals are kept certain, and the structure of the light that comes self-emission panel 220, at the optical axis direction of described lens 141, as 1 or multilayer formation to 140 guiding of optically focused lens arra.In addition, the optical axis extending of described each refractive index distribution lens 14 1 of light-transmitting member 30 crosscuts, in the present embodiment, formation is roughly rectangular-shaped by the integral body in directions X length that glass or transparent plastics form, make the light transmission that penetrates from luminescent panel 220, to 140 guiding of optically focused lens arra.The face Zone Full of luminescent panel 220 1 sides contacts with the light-emitting face 13 of luminescent panel 220 in the face of described light-transmitting member 30, and the Zone Full of the light entrance face S12 of optically focused lens arra 140 contacts with the face of optically focused lens arra 140 1 sides.

In the present embodiment, make the light transmission rate of optical axis direction of the more specifically described lens 141 of light transmission rate of light-transmitting member 30 go up different in the orientation (directions X among Figure 28, Figure 29) of described lens 141 and light-emitting component 221.In the embodiment of figure, described light-transmitting member 30 constitutes as a layer, will be divided into a plurality of part 30a～30c at long side direction (described directions X) by the light-transmitting member 30 that this layer constitutes, and makes the light transmission rate difference of each several part 30a～30c.In view of the above, can eliminate as the described light-emitting component 221 of a plurality of electrooptic cells or the deviation of the lightness of this element 221 and 140 additions of optically focused lens arra.

Particularly, the lightness of the light that penetrates from described a plurality of light-emitting components 221 is as the A1 of Figure 30, in the orientation of light-emitting component 221 or lens 141 (in Figure 30, when left and right directions) promptly on described directions X, having deviation, set the light transmission rate of light-transmitting member 30 according to the mode that almost is inversely proportional to this lightness.In the present embodiment, as shown in figure 30, the orientation central portion of light-emitting component 221 is bright, and the lightness at both ends descends than central portion, so accordingly the light transmission rate of two end portions 30a, the 30c of light-transmitting member 30 is made as than higher light transmission rate a therewith ₁, the light transmission rate of middle body 30b is made as than its low light transmission rate a ₂

In view of the above, in Figure 29, the lightness I of light _X1The light transmission device substrate 222 that comes self-emission device 221 and the part 30a (or 30c) of light-transmitting member 30 and optically focused lens arra 140 and hold the lightness I of the light of projection imaging on the imaging surface of body 10 etc. in the picture load _Y1, light lightness I _X2The light transmission device substrate 222 that comes self-emission device 221 and the part 30b of light-transmitting member 30 and optically focused lens arra 140 and hold the lightness I of the light of projection imaging on the imaging surface of body 10 etc. in the picture load _Y2Almost can equate.This relation is represented in expression formula (2)～(4).

I _Y1＝a ₁·b·s·I _x1 ......(2)

I _Y2＝a ₂·b·s·I _x1 ......(3)

I _Y1＝I _Y2 ......(4)

B in expression formula (2) and (3) is the light transmission rate of device substrate 222, and s represents the light utilization efficiency of optically focused lens arra.

As mentioned above, according to present embodiment,, can revise the deviation of the lightness of light-emitting component 221 by the light transmission rate difference in the orientation of described lens 141 that makes light-transmitting member 30.Embodiment is such as described, lightness according to light-emitting component 221, make the interim ground of light transmission rate different (variation) of orientation of the lens 141 of light-transmitting member 30, the deviation of the lightness of the light-emitting component that the A1 of the described Figure 30 of energy correction is such, the A2 of Figure 30 represents revised lightness, promptly represent as shown in Figure 29 the lightness on the imaging surface P under the state that has light-transmitting member 30 between luminescent panel 220 and the optically focused lens arra 140.Compare with A1 as can be known, the lightness deviation of A2 is little.

In described embodiment, make the interim ground of light transmission rate of light-transmitting member 30 different, but also can change continuously.In addition, in described embodiment, revise the lightness deviation of light-emitting component 221, but when in optically focused lens arra 140, also having the deviation of transmitance or lightness, according to the deviation of the lightness of light-emitting component 221 and 140 additions of optically focused lens arra, make the light transmission rate difference of light-transmitting member 30.As described light-transmitting member 30,, just can make revised lightness brighter if use light transmission rate high as far as possible.

As mentioned above, described electro-optical device 1C comprises: the luminescent panel 220 as electrooptic panel with a plurality of light-emitting components 221 as electrooptic cell; Making the light transmission that penetrates from luminescent panel 220, can form and arrange a plurality ofly for the refractive index distribution lens 141 of the erect image of the picture on the luminescent panel 220 in one direction, the picture of being obtained by a plurality of refractive index distribution lens 141 constitutes the optically focused lens arra 140 of a continuous picture; Be configured between described luminescent panel 220 and the optically focused lens arra 140, the light-transmitting member 30 of the light that penetrates from luminescent panel 220 to 140 guiding of optically focused lens arra.In the orientation of described lens 141, make the light transmission rate difference of this light-transmitting member 30, thereby can revise the lightness of described light-emitting component 221 easily or comprise the deviation of lightness of the described element 221 of described optically focused lens arra 140.

The manufacture method of the 5th embodiment

Below, be example with the electro-optical device of the 5th embodiment, specify the manufacture method of electro-optical device of the present invention.As the manufacture method of the electro-optical device 1C of described embodiment, consider the whole bag of tricks.Here, enumerate first manufacture method and second manufacture method.

First manufacture method of the 5th embodiment

In first manufacture method, at first make luminescent panel 220 and light-transmitting member 30.In the manufacturing of luminescent panel 220, the flat board of photopermeability is used as device substrate 222, on this flat board, as shown in figure 28, arrange at a direction (described directions X) zigzag shape by the light-emitting component that a plurality of EL element constitute.On the other hand, when making light-transmitting member 30, at first measure the lightness of the light that penetrates from described a plurality of light-emitting components 221 or penetrate and see through the lightness of the light of optically focused lens arra 140 from described a plurality of light-emitting components 221.In these are measured, along the orientation (described directions X) of the lens 141 of light-emitting component 221 or optically focused lens arra 140, in order or unified mensuration.

It should be noted that, when measuring the lightness of the light that penetrates from described a plurality of light-emitting components 221, can measure the lightness behind the member (in said embodiment, device substrate 222) that the light transmission that penetrates from a plurality of light-emitting components 221 constitutes luminescent panel 220.In addition, when mensuration penetrates and sees through the lightness of light of optically focused lens arra 140 from described a plurality of light-emitting components 221, under the confined state that described light-emitting component 221 and optically focused lens arra 140 are configured to stipulate, perhaps both measure under the state that the optical axis direction of described lens 141 disposes overlappingly.Perhaps measure respectively the light that penetrates from a plurality of light-emitting components 221 lightness, see through lightness or the transmitance or the light decay rate of the light of optically focused lens arra 140, according to this measurement result, by calculating, obtain the lightness that sees through the light of optically focused lens arra 140 from described a plurality of light-emitting components 221.

Then, according to described measurement result, when in described lightness, having the skew of described directions X,, make the light transmission rate difference of light-transmitting member 30 according to it.Shown in Figure 29 as described, light-transmitting member 30 is constituted as a layer, make light transmission rate interimly not simultaneously at its long side direction (described directions X), be divided into a plurality of part 30a～30c at light-transmitting member 30 at described long side direction, determine length dimension and the light transmission rate of each several part 30a～30c respectively, being connected has the each several part of the light transmission rate corresponding with it, forms light-transmitting member 30.In the present embodiment, shown in Figure 31 A, the both sides of the middle body 30b that forms at translucent material, fixing two end portions 30a, the 30c that forms by the translucent material of light transmission rate a1 of one, formation light-transmitting member 30 with light transmission rate a2.

Then, described light-transmitting member 30 is joined to luminescent panel 220 as Figure 31 A.This joint is to carry out in the following manner, the Zone Full of the wideest (figure's is following) that is a side of light-transmitting member 30 contacts with the light-emitting face S13 of luminescent panel 220, the Zone Full in the zone that is formed with light-emitting component 221 of luminescent panel 220 and described the wideest overlapping, the long side direction of described light-transmitting member 30 is consistent with the orientation of light-emitting component 221.Then, as Figure 31 B, engage optically focused lens arra 140 at the opposing party's (with luminescent panel 220 opposite sides) of light-transmitting member 30 the wideest (above the figure).This joint is to carry out in the following manner, the wideest of described the opposing party of Zone Full and light-transmitting member 30 who is the light entrance face S12 of optically focused lens arra 140 contacts, the orientation (directions X) of the refractive index distribution lens 141 of optically focused lens arra 140 is consistent with the long side direction of described light-transmitting member 30, the region overlapping that is formed with light-emitting component 221 of each refractive index distribution lens 141 and luminescent panel 220.

At last, the relative position of fixing described luminescent panel 220 and light-transmitting member 30 and optically focused lens arra 140.Should fixing method be arbitrarily, for example can engage the side of light-transmitting member 30 (top and bottom) with luminescent panel 220 and optically focused lens arra 140, also can be in the box that luminescent panel 220 and optically focused lens arra 140 is relied on light-transmitting member 30 1 sides collection luminescent panel 220, light-transmitting member 30 and optically focused lens arra 140.

Second manufacture method of the 5th embodiment

In second manufacture method, the manufacturing of luminescent panel 220, the mensuration of described deviation and first manufacture method are same, according to measurement result, make the different aspect of the light transmission rate of light-transmitting member 30 too.As mentioned above, the light-transmitting member 30 that constitutes by 1 layer is divided at long side direction a plurality of, the aspect of decision length dimension of each several part and light transmission rate with described equally.And in second manufacture method, at first middle body 30b is by light transmission rate a ₂Translucent material form, this translucent material directly is placed on the luminescent panel 220, form described middle body 30b, perhaps the material of other formation is placed on the luminescent panel 220.

Figure 32 A is the light transmission rate a of rectangular parallelepiped roughly being pre-formed ₂ Middle body 30b be placed on the luminescent panel 220, lay optically focused lens arra 140 thereon.The state that described part 30a and luminescent panel 220 and optically focused lens arra 140 engage to connecting airtight each other.Then, as Figure 32 B, the light transmission rate a after injecting the sclerosis of holding a concurrent post cementing agent between the luminescent panel 220 of the both sides of described part 30b and the optically focused lens arra 140 ₁Transparent translucent material, make its sclerosis, form part 30a and 30c.It should be noted that, in order to prevent to have the outflow of mobile described translucent material, and described part 30a and 30c are configured as required shape, also can use lead-frame etc.

The 6th embodiment

The following describes the electro-optical device of the 6th embodiment.In the electro-optical device 1D of present embodiment, formation at the stacked a plurality of sandwich construction of the optical axis direction of described lens, makes at least one of these layers to light-transmitting member, in the present embodiment, makes the light transmission rate difference of 2 layers.Below the main difference that describes in detail with described the 5th embodiment.

Figure 33 is the side view (front view) of the electro-optical device of bright the 6th embodiment of the present invention.The difference of the electro-optical device 1D of present embodiment and described the 5th embodiment (Figure 29) is that described light-transmitting member 30 is made of 1 layer, and the light-transmitting member 30 of present embodiment is made of multilayer.In illustrated form, light-transmitting member 30 is made of 3 layers 31～33.Light-transmitting member 30 is to be filled between luminescent panel 220 and the optically focused lens arra 140, make both the same members in interval, a plurality of layers 31～33 by the photopermeability of the optical axis extending of each refractive index distribution lens 141 of crosscut constitute, and make the light transmission that advances from luminescent panel 220.

Layer 31 is the middle layers that are present in the uniform thickness between layer 32 and the layer 33, is formed by glass or transparent plastics in the present embodiment, and the light transmission rate of this layer 31 is a ₃, stride total length and keep certain.Comprehensively engaging with whole of the face of optically focused lens arra 140 1 sides of layer 32 of the face of luminescent panel 220 1 sides of described layer 31, whole of the face of optically focused lens arra 140 1 sides of layer 31 with the face of layers 33 luminescent panel 220 1 sides whole engages.

Layer 32 is layers of holding a concurrent post cementing agent of the uniform thickness that clipped by layer 31 and luminescent panel 220, is made of the rectangular-shaped a plurality of part 32a～32c that connects on directions X.Part 32b is by light transmission rate a ₅The translucent material of holding a concurrent post translucent adhesive form, part 32a and 32c are respectively by light transmission rate a ₄The translucent material of holding a concurrent post translucent adhesive form.

Layer 33 is layers of holding a concurrent post cementing agent of the uniform thickness that clipped by layer 31 and optically focused lens arra 140, is made of the rectangular-shaped a plurality of part 33a～33b that connects on directions X.Part 33a is by light transmission rate a ₆The translucent material of holding a concurrent post translucent adhesive form, part 33b is by light transmission rate a ₇The translucent material of holding a concurrent post translucent adhesive form.

The length of the directions X of described each several part 32a～32c, the 33a～33b of described layer 32 and layer 33 and light transmission rate and described same, according to the lightness of a plurality of light-emitting components 221 or the lightness of this light-emitting component 221 and 140 additions of optically focused lens arra, the suitable setting, in view of the above, the lightness under the state that luminescent panel 220 and light-transmitting member 30 and optically focused lens arra 140 are assembled as shown in Figure 33 almost becomes necessarily at directions X.

Use mathematical expression that this relation is described.In Figure 33, from having regulation lightness I _XLight-emitting component 221 the light transmission device substrate 222 and multilayer light-transmitting member 30 and the optically focused lens arra 140 that penetrate, the lightness of the light on imaging surface during imaging is I _Y, I _YJust can as expression formula (5), represent.

$I_Y=s\·I_X\·\underset{j=1}{\overset{n}{\mathrm{\Π}}}{i}_j......\left(5\right)$

I in the expression formula (5) _jCome the transmitance of member of the light transmission of self-emission device 221,

Come light transmission rate long-pending of each member of the member that the light of self-emission device 221 sees through in order.S represents the light utilization efficiency of optically focused lens arra.Light transmission rate i in the expression formula (5) _jCan represent like that by expression formula (6).

i _j＝e ^-αt ......(6)

In the expression formula (6) is absorption coefficient, is the intrinsic value of material, and t is the thickness of this material.

α can represent like that by expression formula (7).

α＝4πk·λ ^-1 ......(7)

K in the expression formula (7) is an attenuation coefficient, is the intrinsic value of material, and λ represents light wavelength.

In the present embodiment, local different by the layer 32 and layer 33 the light transmission rate that make light-transmitting member 30, from the lightness I of whole light-emitting components 221 ejaculations light during imaging on imaging surface _YAlmost become certain.In view of the above, even when having deviation in described each light-emitting component 221 or the lightness, also can make the lightness of described directions X almost constant from the light of the light-emitting component 221 that comprises optically focused lens arra 140.

From above explanation as can be known, in the present embodiment, can obtain and the same action effect of described the 5th embodiment.In addition, as present embodiment, form light-transmitting member 30 with a plurality of layers 31～33, and this layer more than 2 is divided into a plurality of parts, make the light transmission rate difference of each several part, just can obtain multiple light transmission rate and distribute, can revise the deviation of described lightness more meticulously.

It should be noted that, described embodiment is according to the lightness of the light that penetrates from a plurality of light-emitting components 221 or penetrate and see through the lightness of the light of optically focused lens arra 140 from a plurality of light-emitting components 221, make the distribution of 2 layers 32 and 33 light transmission rate different, but also can only make any one party or 3 light transmission rates distribute different with the upper strata.In addition, according to the lightness of penetrating and see through the light of optically focused lens arra 140 from a plurality of light-emitting components 221, the light transmission rate that makes light-transmitting member 30 is not simultaneously, the deviation of the lightness of the light that penetrates from a plurality of light-emitting components 221 is revised at layer (for example layer 33) arbitrarily, also can revise the lightness of optically focused lens arra 140 or the deviation of light transmission rate or absorptivity at other layers (for example layer 32).Have, the number of the quantity of described layer or the number of plies of cutting apart and the part of cutting apart can suit to change again.

The manufacture method of the 6th embodiment

Below, be example with the electro-optical device 1D of described the 6th embodiment, the manufacture method when forming light-transmitting member 30 with multilayer is described.About the manufacture method of the electro-optical device of described the 6th embodiment, also consider several different methods, but enumerate a manufacture method here.

At first, make luminescent panel 220 and layer 31.Layer 31 for example forms the size shape of regulation with glass or transparent translucent materials such as plastics.As translucent material, for described lightness does not descend, can use the high material of light transmission rate as far as possible, in the present embodiment, as mentioned above, light transmission rate is a ₃, stride total length and become constant.

Then, shown in Figure 34 A, the part 32b on the light-emitting face S13 of luminescent panel 220 is provided with the position, and the light transmission rate after the coating sclerosis is a ₅The translucent material of holding a concurrent post translucent adhesive, clip this translucent material at luminescent panel 220 and layer between 31, be compressed to the thickness of regulation.Under this state, make its sclerosis, as Figure 34 B, form part 32b, and engage luminescent panel 220 and layer 31 by its part 32b.Then, as Figure 34 B, the light transmission rate after injecting sclerosis between the luminescent panel 220 of the both sides of described part 32b and the layer 31 is a ₄The translucent material of holding a concurrent post translucent adhesive, make its sclerosis, as Figure 34 C, form part 32a and part 32c.

Then, shown in Figure 34 C, layer 31 and faces luminescent panel 220 opposite sides (above) light transmission rate after coating is used to form the sclerosis of part 33b is a ₇The translucent material of holding a concurrent post translucent adhesive, between layer 31 and optically focused lens arra 140, clip this translucent material, be compressed to the thickness of regulation.Under this state, make its sclerosis, thereby as Figure 34 D, form part 33b, and by between this part 33b knitting layer 31 and the optically focused lens arra 140.Then, the light transmission rate after injecting sclerosis between the layer 31 of the side of described part 33b and the optically focused lens arra 140 is a ₆The translucent material of holding a concurrent post translucent adhesive, make its sclerosis, form part 33a and get final product.

In coating or inject the step of the translucent material hold a concurrent post described cementing agent, in order to prevent to have the outflow of mobile presclerotic translucent material, and a described part that is formed by translucent material is formed the shape of stipulating, also can use lead-frame etc.In addition, at the compression translucent material, when forming described part, for this part is formed the thickness of regulation with high precision, also can between the member of the described translucent material of compression, exist the spherical interval of other required forms of waiting to guarantee material, perhaps in described translucent material, sneak into predetermined radius.Guarantee material as described interval, hope is to have light transmission, and has and the almost equal light transmission rate of described translucent material.

As mentioned above, between luminescent panel 220 and optically focused lens arra 140, there is the light-transmitting member 30 of multilayer 31～33,, can makes electro-optical device shown in Figure 33 as described simple and reliablely by like this.As mentioned above, when the configuration structure of the different number of plies of the change number of plies of light-transmitting member 30 or light transmission rate and part, also can be according to it, the described technology of suitable change.

In above-mentioned the 5th embodiment and the 6th embodiment, the light transmission device substrate 222 that sends from each light-emitting component 221, from the luminescent panel 220 of the bottom-emission type of luminescent panel 220 outgoing, but also can use at the luminescent panel of the top emission type of direction emergent light in contrast to this.Promptly the object of the light transmission that advances from a plurality of electrooptic cells (light-emitting component) can be a seal 223.At this moment, in order to send from each light-emitting component, the light that advances to seal one side is not blocked, and as the material of each several part, uses the material with light transmission.

In above-mentioned the 5th embodiment and the 6th embodiment, as according to the electric energy that provides and a plurality of electrooptic cells that the permeability of the characteristics of luminescence or light changes, adopt the compound excitation that causes of charge carrier as necessary organic EL, but also can adopt not charge carrier compound as necessary light-emitting component (for example, inorganic EL element), not excitation as necessary light-emitting component (for example inorganic LED element), according to the electric energy that provides and the light valve component (for example liquid crystal cell) that sees through characteristic variations of light.

Image processing system

Each electro-optical device of embodiments of the present invention can be held the line style shaven head portion use that body writes sub-image to the picture load as being used in the image processing system that utilizes the electrofax mode.As the example of image processing system, the printing portion of printer, duplicating machine and the printing portion of facsimile recorder are arranged.

Figure 35 is the longitudinal section of the image processing system of embodiments of the present invention.This image processing system is to use the coloured image of series connection (tandem) type of band intermediate transfer body mode to form device.In this image processing system, be configured in the exposure position of 4 photoconductor drums (holding body) 110K with spline structure, 110C, 110M, 110Y respectively with 4 the bare headed 10K of portion, 10C, 10M, 10Y of spline structure as load.The 10K of shaven head portion, 10C, 10M, 10Y are the electro-optical devices of embodiment of the present invention.

As shown in the figure, driven roller 1121 and driven voller 1122 are set in this image processing system, the intermediate transfer belt 1120 in that these rollers 1121,1122 twine for no reason as shown by arrows, rotates around roller 1121,1122.Though not shown, also can be provided with provides the jockey pulley isostension of tension force to pay parts to middle transfer belt 1120.

Around intermediate transfer belt 1120, the predetermined distance that separates each other disposes photoconductor drum 110K, 110C, 110M, the 110Y with photographic layer at 4 outer peripheral faces.That subscript K, C, M, Y mean respectively is black in order to form, cyan, carmetta, yellow visible image and use.About other members, too.Driving is rotated in the driving of photoconductor drum 110K, 110C, 110M, 110Y and intermediate transfer belt 1120 synchronously.

Around each photoconductor drum 110 (K, C, M, Y), dispose corona charging device 111 (K, C, M, Y), bare headed portion 10 (K, C, M, Y), developer 114 (K, C, M, Y).Corona charging device 111 (K, C, M, Y) makes the outer peripheral face of corresponding photoconductor drum 110 (K, C, M, Y) equally charged.Shaven head portion 10 (K, C, M, Y) writes electrostatic latent image at the charged outer peripheral face of photoconductor drum.Each bare headed portion 10 (K, C, M, Y) is set to the bus (main scanning direction) of the orientation of a plurality of EL element 121 along photoconductor drum 110 (K, C, M, Y).By by 121 pairs of photoconductor drum irradiates lights of described a plurality of EL element, carry out writing of electrostatic latent image.Developer 114 (K, C, M, Y) makes toner (toner) as developer attached on the electrostatic latent image, gets final product video thereby form visible image on photoconductor drum.

Be transferred to successively on the intermediate transfer belt 1120 by develop each visible image of black, the cyan that forms that the position forms, carmetta, Huang of the monochrome of 4 such looks, overlapping on intermediate transfer belt 1120, the result obtains the visible image of colour.At the inboard of intermediate transfer belt 1120 configuration 4 primary transfer corona tubes (transfer printing device) 112 (K, C, M, Y).Primary transfer corona tube 112 (K, C, M, Y) be configured in respectively photoconductor drum 110 (K, C, M, Y) near, attract visible image from photoconductor drum 110 (K, C, M, Y) in the mode of static, transfer printing visible image on by the intermediate transfer belt 1120 between photoconductor drum and the primary transfer corona tube.

Carry one by one from paper feeding cassette by pick-up roller 103 as paper (sheet) 102 of the object of final formation image, be transported to the intermediate transfer belt 1120 that contacts with driven roller 1121 and the bite (nip) between the secondary transfer roller 126.Panchromatic visible image on the intermediate transfer belt 1 120 by the unified secondary transfer printings of secondary transfer roller 126 to the single face of paper 102, by photographic fixing portion be fixing roller to 126, photographic fixing on paper 102.Then, paper 102 is discharged on row's carton of forming of device top by exit roller 128.

Figure 36 is the longitudinal section of other image processing systems of embodiment of the present invention.This image processing system is to utilize the full-colour image of the rotation visualization way of band intermediate transfer body mode to form device.In image processing system shown in Figure 36, corona charging device 168, revolving developing cell 161, bare headed portion 167, intermediate transfer belt 169 are set around photoconductor drum (holding body as load) 165.Shaven head portion 167 is electro-optical devices of embodiments of the present invention.

Corona charging device 168 makes the outer peripheral face of photoconductor drum equally charged.Shaven head portion 167 writes electrostatic latent image at the charged outer peripheral face of photoconductor drum 165.Shaven head portion 167 is electro-optical devices of electro-optical device or its variation, is set to the bus (main scanning direction) of the orientation of a plurality of EL element 121 along photoconductor drum 165.By by 121 pairs of photoconductor drum irradiates lights of described a plurality of EL element, carry out writing of electrostatic latent image.

Developing cell 161 is drums that 4 developer 163Y, 163C, 163M, 163K separate 90 ° angular spacing configuration, is the center with axle 161a, can be to being rotated counterclockwise.Developer 163Y, 163C, 163M, 163K supply with Huang, green grass or young crops, fuchsin, black toner respectively to photoconductor drum 165, adhere to the toner as developer on electrostatic latent image, form visible image at photoconductor drum 165 and get final product video.

For no reason intermediate transfer belt 169 is wrapped on driven roller 1170a, driven voller 1170b, primary transfer roller 166 and the jockey pulley, in the direction shown in the arrow, and rotation around these rollers.Primary transfer roller 166 is transferred to visible image by the intermediate transfer belt 169 between photoconductor drum and the primary transfer roller 166 from photoconductor drum 165 electrostatic attraction visible images.

Particularly, photoconductor drum 165 initial 1 the circle in, by bare headed portion 167 write be used for Huang (Y) as electrostatic latent image, form homochromy visible image by developer 163Y, be transferred to intermediate transfer belt 169 again.In addition, in next circle, by bare headed portion 167 write be used for green grass or young crops (C) as electrostatic latent image, form homochromy visible image by developer 163C, be transferred to intermediate transfer belt 169 overlappingly with the visible image of Huang.Then, during by such photoconductor drum 9 rotations 4 circles, Huang, green grass or young crops, fuchsin, black visible image are overlapping on intermediate transfer belt 169 successively, and the result panchromatic is developed in formation on the transfer belt 169.When the two sides as the paper of the final object that forms image forms image, homochromy visible image with the transfer surface and the back side on intermediate transfer belt 169, then the form of the visible image of next color at the transfer surface and the back side on intermediate transfer belt 169 obtains panchromatic visible image on intermediate transfer belt 169.

The paper feed path 174 that paper passes through is set in image processing system.Paper is taken out by pick-up roller 179 one by one from paper feeding cassette 178, is advanced on paper feed path 174 by conveying roller, by the intermediate transfer belt 169 that contacts with driven roller 1170a and the bite between the secondary transfer roller 171.Secondary transfer roller 171 is transferred to visible image the single face of paper from the panchromatic visible image of middle transfer belt 169 unified electrostatic attractions.Secondary transfer roller 171 by not illustrated clutch coupling near or away from intermediate transfer belt 169.And during the visible image of transfer printing colour, secondary transfer roller 171 contacts with intermediate transfer belt 169 on paper, during overlapping development, leaves from secondary transfer roller 171 on intermediate transfer belt 169.

By the paper sheet delivery of described such transferred image to fuser 172, between the warm-up mill 172a and backer roll 172b by fuser 172, the visible image photographic fixing on the paper.The photographic fixing sheet processed is drawn in 176 by exit roller, advances to the direction of arrow F.When printing on the two sides, to after 176, exit roller is to 176 to reverse rotation by exit roller for the major part of paper, as shown by arrow G, prints with landline 175 to the two sides and to import.Then, the another side transfer printing of visible image, after carrying out photographic fixing and handle by fuser 172 once again, discharge paper to 176 by secondary transfer roller 171 by exit roller to paper.

According to each above-mentioned image processing system,, use the electro-optical device of embodiments of the present invention, so can form high-quality image as bare headed portion.

More than, enumerate any one image processing system of the electro-optical device that can use embodiments of the present invention, but also can use any of electro-optical device of embodiments of the present invention in the image processing system of other electrofax modes, such image processing system within the scope of the invention.For example be not use intermediate transfer belt, from the image processing system of the type of the direct transfer printing visible image of photoconductor drum, form the image processing system of monochrome image.

Claims (5)

1. electro-optical device has:

Array of source, a plurality of light-emitting components of being arranged by a direction on substrate constitute;

Lens arra is made of a plurality of lens elements of arranging on a described direction, will hold volume imaging in the picture load from the emergent light of described light-emitting component; With

First light-transmitting member and second light-transmitting member are configured between described array of source and the described lens arra, and contact with described lens arra with described array of source,

Described first light-transmitting member is connected configuration with described second light-transmitting member on a described direction;

At least one is different in elastic modulus, refractive index, light transmission rate for described first light-transmitting member and described second light-transmitting member,

The refractive index height of described second light-transmitting member of the refractive index ratio of described first light-transmitting member, from the emergent light of described light-emitting component outgoing, see through described first light-transmitting member and hold in described picture load by described lens arra volume imaging light the imaging radius with see through described second light-transmitting member and hold in described picture load by described lens arra volume imaging light the imaging radius about equally.

2. electro-optical device according to claim 1 is characterized in that:

The elastic modulus of described second light-transmitting member of the modular ratio of described first light-transmitting member is low, and the area of described first light-transmitting member is bigger than the area of described second light-transmitting member.

3. electro-optical device according to claim 1 is characterized in that:

The light transmission rate of described first light-transmitting member is than the light transmission rate height of described second light-transmitting member, from the emergent light of described light-emitting component outgoing, see through described first light-transmitting member and from the lightness of the light of described lens arra outgoing with see through described second light-transmitting member and about equally from the lightness of the light of described lens arra outgoing.

4. electro-optical device according to claim 1 is characterized in that:

Described first light-transmitting member and described second light-transmitting member are cementing agents.

5. image processing system has:

The picture load is held body;

Make described picture load hold the charged charged device of body;

The described electro-optical device of claim 1, it will advance and carry on a shoulder pole the charged face of holding body through the light of described lens arra to described picture and shine from described array of source, form sub-image;

Adhere to toner at described sub-image, thereby hold the developer that body forms visible image in described picture load; With

Hold the transfer printing device that body is transferred to described visible image on other objects from described picture load.

Images