JP2007141597A - Electrooptical device, electronic apparatus and lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrooptical device capable of improving utilization efficiency of light from a backlight; to provide an electronic apparatus; and to provide a lighting system. <P>SOLUTION: This electrooptical device is provided with a display part with a plurality of pixels arranged thereon, a first backlight 42 and a second backlight 43, and a light guide part 41 for guiding light emitted from the backlights. The light guide part 41 is provided with a first light guide part 44 for guiding light emitted from the first backlight 42, and a second light guide part 45 for guiding light emitted from the second backlight 43. The first light guide part 44 is provided with a first main light guide part 441, and first auxiliary light guide parts 442. The second light guide part 45 is provided with a second main light guide part 451, and second auxiliary light guide part 452. The plurality of first auxiliary light guide parts 442 and the plurality of second auxiliary light guide parts 452 intersect with each other to alternately repeat approach and separation with respect to the display part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to, for example, an electro-optical device, an electronic apparatus, and a lighting device.

Conventionally, electro-optical devices such as liquid crystal display devices are known. The electro-optical device includes, for example, a first substrate, a second substrate provided to face the first substrate, and a liquid crystal provided between the first substrate and the second substrate. A backlight unit that is provided on the opposite side of the first substrate and the second substrate and irradiates light to the first substrate or the second substrate.
The first substrate includes a plurality of scanning lines, a plurality of data lines, and a plurality of pixel circuits provided corresponding to the intersection of the scanning lines and the data lines. A common electrode is provided on the first substrate side of the second substrate. These scanning lines, data lines, pixel circuits, and common electrodes are connected to a control circuit.

  In the electro-optical device as described above, for example, a display region configured by arranging a plurality of pixels is formed on the first substrate side of the second substrate. Each pixel is configured by arranging sub-pixels including red (R), green (G), and blue (B) color filters.

FIG. 19 is a schematic plan view and a side view showing a configuration of a backlight unit 4000 according to a conventional example.
As shown in FIG. 19, the backlight unit 4000 includes a substantially rectangular light guide 4100 and a backlight 4200 disposed at one end of the light guide 4100.
The light guide unit 4100 includes a main light unit 4110 provided adjacent to the backlight 4200, a plurality of core members 4130 disposed substantially parallel to the main light unit 4110, and a core from one end of the main light unit 4110. A sub light guide portion 4120 extending substantially perpendicular to the material 4130, and the sub light guide portion 4120 and the core material 4130 alternately approach or separate from the first substrate or the second substrate described above. Cross to repeat.
Moreover, the backlight 4200 is arrange | positioned at the end of the leading light part 4110, and inject | emits light to this leading light part 4110 (refer patent document 1).

FIG. 20 is a diagram illustrating light transmittance of a color filter according to a conventional example.
Each color filter transmits light of a specific wavelength and attenuates light of other wavelengths. In the International Commission on Illumination (CIE), 700.0 nm as red light, 546.1 nm as green light, and 435.8 nm as blue light are respectively transmitted as peaks. For this reason, the color filters are designed to pass light around 700.0 nm of red light, 546.1 nm of green light, and 435.8 nm of blue light, and attenuate light of other wavelengths as much as possible. Is done.

The backlight 4200 is formed of, for example, a cold cathode fluorescent tube (CCFL) or an LED (light emitting diode), and emits light with a predetermined luminance characteristic.
FIG. 21 is a diagram showing the luminance characteristics of the three-color LED. Specifically, the three-color LED includes three types of LEDs of red (R), green (G), and blue (B).
FIG. 22 is a diagram showing the luminance characteristics of the cold cathode fluorescent tube. Specifically, the cold cathode fluorescent tube is a three-wavelength fluorescent tube coated with a phosphor so as to emit red light, green light, and blue light.
As shown in FIGS. 21 and 22, the backlight is designed so that luminance peaks occur in the vicinity of 700.0 nm, 546.1 nm, and 435.8 nm in accordance with the International Commission on Illumination (CIE) standard.

According to the electro-optical device using the backlight unit 4000 and the color filter as described above, when light is emitted from the backlight 4200 with a predetermined luminance characteristic, the light is transmitted through the main light unit 4110 to the sub light guide unit. The light is diffused within 4120 and emitted from a bent portion 4430 formed at the intersection of the sub light guide portion 4120 and the core material 4130. The light emitted from the sub light guide 4120 passes through the liquid crystal shutter controlled by the control circuit, and is then irradiated on the entire display area. The light incident on each pixel in the display area passes through the color filter according to a predetermined light transmission characteristic and is emitted from the sub-pixel.
US Pat. No. 4,907,132

  However, in the above-described electro-optical device, light having the same luminance characteristic emitted from the backlight 4200 is emitted to each color filter. Therefore, each color filter has red (R), green (G), It is necessary to selectively transmit only one of the three types of blue (B) and shield the rest. For this reason, the light use efficiency is approximately 1/3 in terms of area, and thus there is a problem that the light use efficiency of the backlight 4200 is low.

  An object of the present invention is to provide an electro-optical device, an electronic apparatus, and a lighting device that can improve the utilization efficiency of light from a backlight.

  The electro-optical device of the present invention includes a display unit in which a plurality of pixels are arranged, a light source, and a light guide unit that guides light emitted from the light source to the pixel, and each pixel has light transmission characteristics. The light source includes a first sub-light source and a second sub-light source, and the light guide unit guides light emitted from the first sub-light source. 1 light guide part, and the 2nd light guide part which guides the light inject | emitted from the said 2nd sub light source, The said 1st light guide part is the 1st main light part corresponding to the said 1st sub light source, A plurality of first sub light guide units connected to the first main light unit, and the second light guide unit includes a second main light unit corresponding to the second sub light source, and the second sub light source unit. A plurality of second sub light guides connected to the main light guide, and the plurality of first sub light guides and the plurality of second sub light guides Wherein the crossing to repeat alternately approaches or away from the said display unit.

According to the present invention, the light emitted from the first sub-light source passes through the first sub-light guide unit via the first leading light unit, and is emitted from a region close to the display unit of the first sub-light guide unit. The Thereafter, this light is incident on each pixel of the display unit and passes through a color filter corresponding to the first sub-light source among various color filters.
Further, the light emitted from the second sub light source passes through the second sub light guide unit via the second leading light unit, and is emitted from an area close to the display unit of the second sub light guide unit. Thereafter, this light is incident on each pixel of the display unit and passes through a color filter corresponding to the second sub-light source among various color filters.

Therefore, the luminance characteristic of the first sub-light source is set so that the ratio of light transmitted through the color filter corresponding to the first sub-light source is increased, and the ratio of light transmitted through the color filter corresponding to the second sub-light source is By increasing the luminance characteristics of the second sub-light source so as to increase, the light attenuated or blocked in each color filter can be reduced, and the light use efficiency of the backlight can be improved.
For example, in a conventional electro-optical device, three types of red (R), green (G), and blue (B) are used as color filters, and light emitted from a backlight is one of these three types of color filters. Since only one of them is transmitted, the light use efficiency of the light source is approximately 1/3 in terms of area. However, in the present invention, the light use efficiency of the light source can be improved by appropriately adjusting the type of color filter constituting each color filter.

  In the electro-optical device according to the aspect of the invention, the first sub-light source and the second sub-light source may be configured by two different types of monochromatic light sources, respectively, and the first main light unit and the second main light unit may be The monochromatic light guide unit is formed corresponding to the monochromatic light source, and the first sub light guide unit and the second sub light guide unit are alternately connected to the monochromatic light guide units, respectively. Is preferred.

  In the electro-optical device according to the aspect of the invention, the first sub-light source and the second sub-light source may be configured by two different types of monochromatic light sources, respectively, and the first main light unit and the second main light unit may be The monochromatic light source is formed along two opposite sides of the light guide corresponding to the monochromatic light source, and the first sub light guide and the second sub light guide are It is preferable that the monochromatic main light portions are alternately connected.

According to the present invention, the two types of monochromatic light emitted from the monochromatic light sources constituting the first sub light source are transmitted to the first sub light guide unit via the monochromatic led light units of the corresponding first led light units. The light is emitted from an area close to the display unit of the first sub light guide unit. Each of the two types of emitted light is incident on the display unit.
The two types of monochromatic light emitted from the monochromatic light sources constituting the second sub light source pass through the second sub light guide unit via the monochromatic main light units of the second main light unit corresponding to the second sub light sources, respectively. The light is emitted from a region close to the display unit of the sub light guide unit. Each of the two types of emitted light is incident on the display unit.

  Therefore, the four types of monochromatic light emitted from the first sub-light source and the second sub-light source pass through different optical paths and enter the display unit without being mixed. Therefore, it is not necessary to selectively transmit only a specific color from the light incident on the display unit, so that the light use efficiency of the light source can be further improved.

  In the electro-optical device according to the aspect of the invention, each of the first sub light guide unit and the second sub light guide unit may include a glass fiber and a surface coating material that covers a surface of the glass fiber. It is preferable that a light-emitting part that emits light passing through the glass fiber is formed by removing the surface coating material at a position in the vicinity of the display part of the part and the second sub light guide part.

According to the present invention, since the first sub light guide unit and the second sub light guide unit are configured by the glass fiber covered with the surface coating material, the light emitted from the first sub light source and the second sub light source is The first sub light guide and the second sub light guide are diffused substantially uniformly. Further, since the light emitting portion is formed by removing the coating material, the display portion can be irradiated with light substantially uniformly.
In addition, since the first sub light guide unit and the second sub light guide unit are formed of glass fibers, the flexibility of the light guide unit can be improved, and thus an electro-optical device having a curved shape can be provided.

  In the electro-optical device according to the aspect of the invention, it is preferable that a lenticular lens that changes an emission direction of light is provided on the light emitting unit of the first sub light guide unit and the second sub light guide unit.

  Since the light diffused in the first sub light guide and the second sub light guide is emitted from the light emitting unit, the emission direction of the light emitted in the light emitting unit is different. According to the present invention, since the lenticular lens for changing the light emission direction is provided on the light emitting part, the light emission direction emitted from the light emitting part can be made uniform.

  The electro-optical device of the present invention is an electro-optical device including a display unit in which a plurality of pixels are arranged, a light source, and a light guide unit that guides light emitted from the light source to the pixels. The pixel includes three or more types of pixels, and the light source is disposed along one side of the light guide unit, and the light guide unit includes a leading light unit corresponding to the light source, and the light source. A plurality of core members arranged, and a plurality of sub light guide portions connected to the main light portion, wherein the sub light guide portions and the core member are close to or separated from the display portion. The light sources are composed of three or more different monochromatic light sources, and the main light unit includes a single-color main light unit that is stacked corresponding to the single color light sources that constitute the light source. The sub light guide unit is connected to each single color main light unit in order. .

According to the present invention, the three types of monochromatic light emitted from the sub-light source are diffused in the sub light guide unit connected to the monochromatic main light unit via the corresponding single color main light unit, and the display unit The light exits from the area close to the light and enters the display unit.
Therefore, monochromatic light having different luminance characteristics is incident on the display unit. Accordingly, it is not necessary to selectively transmit only light of a specific color by using a color filter or the like as incident light, so that the light use efficiency of the light source can be improved.

  In the electro-optical device according to the aspect of the invention, it is preferable that the display unit includes a reflective pixel that reflects light from the outside in addition to the three or more types of pixels.

  According to the present invention, since the reflection pixel that reflects the light from the outside is provided, the light incident from the outside and reflected by the reflection pixel is also incident on the display unit in addition to the light incident from the light source. Therefore, the light use efficiency of the light source can be further improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, the same constituent elements are denoted by the same reference numerals, and the description thereof is omitted or simplified.

<1. First Embodiment>
FIG. 1 is a perspective view showing the overall configuration of the electro-optical device 1 according to the first embodiment of the present invention, and FIG. 2 is a ZZ ′ sectional view of FIG.
The electro-optical device 1 includes an element substrate 10 on which a pixel electrode 11 and the like are formed, a counter substrate 20 that is disposed opposite to the element substrate 10 and on which a common electrode 21 and the like are formed, and between the element substrate 10 and the counter substrate 20. And a backlight unit 40 that is provided on the lower side of the element substrate 10 (on the side opposite to the counter substrate 20) and irradiates the liquid crystal 30 with light.
The element substrate 10 is formed of glass, a semiconductor, or the like, and various circuits and the like are formed on the element substrate 10 using TFTs (Thin Film Transistors). The counter substrate 20 is made of a transparent material such as glass.

  A seal member 32 that seals the gap between the element substrate 10 and the counter substrate 20 is provided on the outer peripheral portion of the counter substrate 20. The sealing member 32 forms a space in which the liquid crystal 30 is sealed together with the element substrate 10 and the counter substrate 20. A spacer 33 is mixed in the seal member 32 in order to maintain a distance between the element substrate 10 and the counter substrate 20. Note that an opening for enclosing the liquid crystal 30 is formed in the seal member 32, and the opening is sealed with a sealing material 34 after the liquid crystal 30 is encapsulated.

  Here, a data line driving circuit 200 for driving a data line extending in the X direction is formed on the surface of the element substrate 10 on the counter substrate 20 side and outside one side of the seal member 32. Further, a plurality of connection electrodes 201 are formed on one side, and various signals and image signals from a control circuit (not shown) are input through the connection electrodes 201. In addition, on both sides of the one side of the seal member 32, a scanning line driving circuit 100 that drives the scanning line extending in the Y direction is formed.

A display region 22 as a display unit is formed on the surface of the counter substrate 20.
A protective film (not shown) is formed on the display region 22, and the common electrode 21 is formed on the protective film. The common electrode 21 is electrically connected to the element substrate 10 via a conductive material provided in at least one of the four corners of the element substrate 10. In addition, an alignment film or the like that has been rubbed in a predetermined direction is provided on the opposing surface side of the element substrate 10 and the counter substrate 20, and a polarizing plate corresponding to the alignment direction is provided on each back surface side. .

FIG. 3 is a schematic plan view of the display area 22.
The display area 22 is configured by arranging a plurality of pixels 23, and each pixel 23 has four kinds of colors having different light transmission characteristics of red (R), green (G), blue (B), and cyan (C). Any one of the filters 24R, 24G, 24B, and 24C is configured.
Specifically, the color filters 24R, 24B, 24G, and 24C are arranged in a substantially square shape.

  Here, the four types of color filters are divided into a first filter group 61 and a second filter group 62. That is, the red (R) and cyan (C) color filters 24R and 24C are the first filter group 61, and the blue (B) and green (G) color filters 24B and 24G are the second filter group 62. Then, when the color filters 24R, 24G, 24B, and 24C are taken as one unit, the first filter group 61 is arranged on the upper left side and the lower right side in FIG. 3, and the second filter group 62 is shown in FIG. Arranged on the upper right side and the lower left side.

FIG. 4 is a schematic plan view and a side view of the backlight unit 40.
The backlight unit 40 includes a substantially rectangular light guide 41, a first backlight 42 as a first sub light source disposed along two adjacent sides of the light guide 41, and a second sub light source. The second backlight 43.

The first backlight 42 and the second backlight 43 are each composed of two different types of monochromatic light sources.
Specifically, the first backlight 42 is configured by alternately arranging a plurality of red (R) and cyan (C) LEDs 421 and 422. As a result, the first backlight 42 emits red light and cyan light.
The second backlight 43 is configured by alternately arranging a plurality of blue (B) and green (G) LEDs 431 and 432. Accordingly, the first backlight 42 emits blue light and green light.

  The light guide unit 41 guides the light emitted from the backlights 42 and 43, the first light guide unit 44 that guides the light emitted from the first backlight 42 to the first filter group 61, and the second light guide unit 44. And a second light guide unit 45 that guides light emitted from the backlight 43 to the second filter group 62.

  The first light guide unit 44 includes a first main light unit 441 corresponding to the first backlight 42 and a plurality of first sub light guide units 442 connected to the first main light unit 441. Specifically, the first sub light guides 442 extend in a direction orthogonal to the direction in which the first main light unit 441 extends, and are provided substantially in parallel at predetermined intervals. Accordingly, the first sub light guide unit 442 is provided in a comb-tooth shape with respect to the first main light guide unit 441. The first leading light unit 441 is disposed adjacent to the first backlight 42.

  The second light guide unit 45 includes a second leading light unit 451 corresponding to the second backlight 43 and a plurality of second sub light guiding units 452 connected to the second leading light unit 451. Specifically, the second sub light guide parts 452 extend in a direction orthogonal to the direction in which the second main light part 451 extends, and are provided substantially in parallel at predetermined intervals. Accordingly, the second sub light guide unit 452 is provided in a comb tooth shape with respect to the second main light unit 451. The second leading light unit 451 is disposed adjacent to the second backlight 43.

The plurality of first sub light guides 442 and the plurality of second sub light guides 452 intersect with the display area 22 so as to alternately repeat or approach each other.
Accordingly, a bent portion 443 that guides the light emitted to the first sub light guide portion 442 to the first filter group 61 is formed in an area close to the display region 22 of the first sub light guide portion 442. A bent portion 453 that guides the light emitted to the second sub light guide portion 452 to the second filter group 62 is formed in a region close to the display region 22 of the second sub light guide portion 452.

FIG. 5 is a schematic plan view showing a state in which the backlight unit 40 is overlaid on the display area 22.
The bent portion 443 of the first sub light guide portion 442 is disposed on the back surface of the first filter group 61 in the display area 22, and the bent portion 453 of the second sub light guide portion 452 is disposed in the second filter group 62 of the display area 22. It is arranged on the back side.

The operation of the above electro-optical device 1 is as follows.
The first backlight 42 emits red (R) and cyan (C) light. Then, this light enters the first light guide 44 of the light guide 41, passes through the first leading light 441 and the first sub light guide 442 of the first light guide 44, and enters the first sub light guide. The light is emitted from a bent portion 443 formed in a region close to the display region 22 of the portion 442 and passes through a liquid crystal shutter by the liquid crystal 30. Thereafter, this light is incident on each pixel 23 in the display area 22 and passes through the red (R) or cyan (C) color filters 24R and 24C constituting the first filter group.
On the other hand, the second backlight 43 emits blue (B) and green (G) light. Then, this light enters the second light guide 45 of the light guide 41, passes through the second leading light 451 and the second sub light guide 452 of the second light guide 45, and passes through the second sub light guide 452. The light is emitted from a bent portion 453 formed in a region close to the display region 22 of the portion 452 and passes through a liquid crystal shutter by the liquid crystal 30. Thereafter, this light is incident on each pixel 23 in the display area 22 and passes through the blue (B) or green (G) color filters 24B and 24G constituting the second filter group 62.

According to this embodiment, there are the following effects.
(1) Only the light emitted from the first backlight 42 is incident on the red (R) and cyan (C) color filters 24R and 24C constituting the first filter group 61, and the second filter group 62 is Only the light emitted from the second backlight 43 is incident on the blue (B) and green (G) color filters 24B and 24G.
Here, the first backlight 42 is composed of red (R) and cyan (C) LEDs 421 and 422, and the second backlight 43 is composed of blue (B) and green (G) LEDs 431 and 432. . Thereby, the light attenuated or blocked in each of the color filters 24R, 24C, 24B, and 24G can be reduced, and the light use efficiency of the first backlight 42 and the second backlight 43 can be improved to about twice.

<2. Second Embodiment>
FIG. 6 is a schematic plan view of a display area 22A according to the second embodiment of the present invention.
In the present embodiment, the configuration of the display area 22A and the configuration of the backlight unit 40A are different from those of the first embodiment.

The display region 22A is configured by arranging a plurality of pixels 23A, and each pixel 23A receives four types of light having different luminance characteristics of red (R), green (G), blue (B), and cyan (C). Each of the incident pixels 25R, 25G, 25B, and 25C is included.
Specifically, the pixels 25R, 25G, 25B, and 25C are arranged in a substantially square shape.

  Here, the pixels 25 </ b> R, 25 </ b> G, 25 </ b> B, and 25 </ b> C into which the four types of light are incident are divided into the first pixel group 63 and the second pixel group 64. That is, the pixels 25R and 25C to which red (R) and cyan (C) light are incident are set as the first pixel group 63, and the pixels 25B and 25G to which blue (B) and green (G) light are incident are the first pixels. A two-pixel group 64 is assumed. Then, when the pixels 25R, 25G, 25B, and 25C are regarded as one unit, the first pixel group 63 is arranged on the upper left side and the lower right side in FIG. 6, and the second pixel group 64 is arranged on the upper side in FIG. It is arranged on the right side and the lower left side.

FIG. 7 is a schematic plan view and a side view showing the backlight unit 40A.
The backlight unit 40A includes a substantially rectangular light guide 41A, a first backlight 42 and a second backlight 43 arranged along two adjacent sides of the light guide 41A, and a light guide 41A. And a lenticular lens 47 described later disposed on the display area 22A side.

  The light guide unit 41A is a unit that causes the light emitted from the backlights 42 and 43 to emit light, and the first light guide unit 44A that guides the light emitted from the first backlight 42 to the first pixel group 63; A second light guide portion 45 </ b> A that guides the light emitted from the second backlight 43 to the second pixel group 64.

  The first light guide unit 44A includes a first main light unit 441A extending along the first backlight 42, and two types of pixels 25R of the first pixel group 63 extending from the first main light unit 441A in a substantially orthogonal direction. , And a plurality of first sub light guide portions 442A alternately extending to 25C. Specifically, the first sub light guide portions 442A extend in a direction orthogonal to the direction in which the first main light portion 441A extends, and are provided substantially in parallel at predetermined intervals. Accordingly, the first sub light guide portion 442A is provided in a comb-tooth shape with respect to the first main light portion 441A.

  The second light guide unit 45A includes a second main light unit 451A extending along the second backlight 43, and two types of pixels 25B of the second pixel group 64 extending from the second main light unit 451A in a substantially orthogonal direction. , 25G, and a plurality of second sub light guide portions 452A alternately extending to 25G. Specifically, the second sub light guide parts 452A extend in a direction orthogonal to the direction in which the second main light part 451A extends, and are provided substantially in parallel at predetermined intervals. Accordingly, the second sub light guide 452A is provided in a comb-like shape with respect to the second main light 451A.

  Further, the first sub light guide portion 442A and the second sub light guide portion 452A are composed of a glass fiber and a coating material that covers the surface of the glass fiber.

The first main light unit 441A includes single color main light units 448R and 448C that are stacked to correspond to the first backlight 42.
The first sub light guides 442A are alternately connected to the single color main light units 448R and 448C, respectively.
Further, the single color main light unit 448R is disposed adjacent to the red (R) LED 421, and the single color main light unit 448C is disposed adjacent to the cyan (C) LED 422.

The second main light unit 451A includes single color main light units 458B and 458G that are stacked to correspond to the second backlight 43.
The second sub light guides 452A are alternately connected to the single color main light units 458R and 458G, respectively.
Further, the single color main light unit 458 </ b> B is disposed adjacent to the blue (B) LED 431, and the single color main light unit 458 </ b> G is disposed adjacent to the green (G) LED 432.

The first sub light guide portion 442A of the first light guide portion 44A and the second sub light guide portion 452A of the second light guide portion 45A intersect with the display region 22A so as to alternately repeat approaching or separating.
Accordingly, a bent portion 443A that guides the light emitted to the first sub light guide portion 442A to the first pixel group 63 is formed in a region close to the display region 22A of the first sub light guide portion 442A. A bent portion 453A that guides light emitted to the second sub light guide portion 452A to the second pixel group 64 is formed in a region close to the display region 22A of the second sub light guide portion 452A.

Light emitting portions 444 and 454 for emitting light passing through the glass fiber are formed at positions near the display region 22A of the first sub light guide portion 442A and the second sub light guide portion 452A. . Specifically, the light emitting part 444 is formed in the bent part 443A of the first sub light guide part 442A, and the light emitting part 454 is formed in the bent part 453A of the second sub light guide part 452A.
As shown in FIG. 8, with the roller 90 in contact with the surface of the light guide section 41A, the light guide section 41A is pulled out, so that the first sub light guide section 442A and the second sub light guide section 452A are pulled out. The surface coating material is removed. Thereby, these light emission parts 444 and 454 are formed.

FIG. 9 is a schematic plan view and a side view showing the configuration of the lenticular lens 47.
FIG. 10 is a side view of the backlight unit 40A.
As shown in FIG. 10, a lenticular lens 47 that changes the light emission direction is provided on the light emitting portions 444 and 454 of the first sub light guide portion 442A and the second sub light guide portion 452A.

The lenticular lens 47 is configured by arranging a plurality of lenses 48, and each lens 48 includes any one of four types of sub-lenses 49R, 49G, 49B, and 49C whose thickness is not uniform.
Specifically, the sub lenses 49R, 49G, 49B, and 49C are arranged in a substantially square shape corresponding to each of the light emitting portions 444 and 454 formed in the light guide portion 41A. Thereby, the red (R), green (G), blue (B), and cyan (C) light emitted from the light emitting units 444 and 454 passes through the sub lenses 49R, 49G, 49B, and 49C.

  Here, the four types of sub-lenses are divided into a first lens group 71 and a second lens group 72. That is, the sub lenses 49R and 49C through which red (R) and cyan (C) light pass are set as the first lens group 71, and the sub lenses 49B and 49G through which blue (B) and green (G) light pass are set as the first lens group 71. A two-lens group 72 is assumed. Then, when the sub lenses 49R, 49G, 49B, and 49C are regarded as one unit, the first lens group 71 is arranged on the upper left side and the lower right side in FIG. 9, and the second lens group 72 is arranged in FIG. Arranged on the upper right side and the lower left side.

  Each of the sub lenses 49R, 49G, 49B, and 49C has a substantially cubic shape, and the surface on the display area 22A side is cut out along a predetermined direction. Accordingly, refracting surfaces 491R, 491G, 491B, and 491C are formed on the display area 22A side of the sub lenses 49R, 49G, 49B, and 49C, respectively.

These refracting surfaces 491R, 491G, 491B, and 491C are formed in accordance with the direction of light emitted from the corresponding light emitting portions 444 and 454, respectively.
Specifically, the refracting surfaces 491R, 491G, 491B, and 491C with respect to the direction in which light travels in the first sub light guide unit 442A and the second sub light guide unit 452A in which the light emitting units 444 and 454 are formed Are provided at a predetermined angle.
Specifically, the refracting surfaces 491R and 491C are formed thinner toward the lower side in FIG. 9, and the refracting surfaces 491B and 491G are formed thinner toward the right side in FIG.

  The light emitted from the light emitting units 444 and 454 is biased in the direction in which the light travels through the first sub light guide unit 442A and the second sub light guide unit 452A, but such a lenticular lens 47 is provided. Thus, the light emitted from the light emitting units 444 and 454 can be aligned substantially perpendicular to the display region 22A on the refractive surfaces 491R, 491C, 491B, and 491G.

FIG. 11 is a schematic plan view showing a state in which the backlight unit 40A is superimposed on the display area 22A.
The bent portion 443A of the first sub light guide 442A is disposed on the back surface of the first pixel group 63 in the display region 22A, and the bent portion 453A of the second sub light guide 452A is the second pixel group 64 in the display region 22A. It is arranged on the back side.

  The display area 22A may or may not include a color filter. That is, the display area 22A may include color filters corresponding to the pixels 25R, 25G, 25B, and 25C.

The operation of the above electro-optical device is as follows.
The first backlight 42 emits red (R) and cyan (C) light. Then, these lights pass through the first sub light guide unit 442A via the single color main light units 448R and 448C of the first main light unit 441A, and are emitted from the light emitting unit 444 of the first sub light guide unit 442A. . The red (R) and cyan (C) light emitted from the light emitting unit 444 passes through the sub lenses 49R and 49C of the lenticular lens 47, respectively, and the emission direction is substantially perpendicular to the display region 22A at the refractive surfaces 491R and 491C. And pass through a liquid crystal shutter by the liquid crystal 30. Thereafter, these lights enter each pixel 23 </ b> A in the display area 22 </ b> A and pass through the pixels 25 </ b> R and 25 </ b> C constituting the first pixel group 63.
On the other hand, the second backlight 43 emits blue (B) and green (G) light. Then, these lights pass through the second sub light guide unit 452A via the single color main light units 458B and 458G of the second main light unit 451A, and are emitted from the light emitting unit 454 of the second sub light guide unit 452A. . The blue (B) and green (G) light emitted from the light emitting unit 454 passes through the sub lenses 49B and 49G of the lenticular lens 47, respectively, and the emission direction is substantially perpendicular to the display region 22A at the refractive surfaces 491B and 491G. And pass through a liquid crystal shutter by the liquid crystal 30. Thereafter, these lights enter each pixel 23A in the display area 22A and pass through the pixels 25B and 25G constituting the second pixel group 64.

According to this embodiment, there are the following effects.
(2) Of the pixels 25R and 25C constituting the first pixel group 63, only the light emitted from the LED 421 of the first backlight 42 is incident on the pixel 25R, and the LED 422 of the first backlight 42 is incident on the pixel 25C. Only the light emitted from is incident.
Of the pixels 25B and 25G constituting the second pixel group 64, only the light emitted from the LED 431 of the second backlight 43 is incident on the pixel 25B, and the LED 432 of the second backlight 43 is incident on the pixel 25G. Only the emitted light is incident.

  Here, since the monochromatic light emitted from the LEDs 421, 422, 431, and 432 is incident on the pixels 25R, 25C, 25B, and 25G, only a specific color is selectively transmitted from the light incident on the pixels. There is no need to let them. Therefore, the light use efficiency of the first backlight 42 and the second backlight 43 can be improved to about 3 to 4 times.

(3) The first sub light guide portion 442A and the second sub light guide portion 452A are made of glass fibers covered with a coating material. Further, the light emitting portions 444 and 454 were formed by removing the coating material on the bent portions 443A and 453A of the first sub light guide portion 442A and the second sub light guide portion 452A, respectively.
Thereby, the light emitted from the first backlight 42 and the second backlight 43 is diffused substantially uniformly in the first sub light guide unit 442A and the second sub light guide unit 452A, and the light emitting units 444 and 454 are emitted. To the display area 22A.
In addition, the flexibility of the light guide 41A can be improved.

(4) The lenticular lens 47 that changes the light emission direction is provided on the light emitting portions 444 and 454 of the first sub light guide portion 442A and the second sub light guide portion 452A.
Thereby, the direction of the light emitted from the light emitting units 444 and 454 can be aligned substantially perpendicular to the display region 22A.

(5) Of the pixels 25R and 25C constituting the first pixel group 63, only the light emitted from the LED 421 of the first backlight 42 is incident on the pixel 25R, and the LED 422 of the first backlight 42 is incident on the pixel 25C. Only the light emitted from is incident.
Of the pixels 25B and 25G constituting the second pixel group 64, only the light emitted from the LED 431 of the second backlight 43 is incident on the pixel 25B, and the LED 432 of the second backlight 43 is incident on the pixel 25G. Only the emitted light is incident.

Here, since the monochromatic light emitted from the LEDs 421, 422, 431, and 432 is incident on the pixels 25R, 25C, 25B, and 25G, only a specific color is selectively transmitted from the light incident on the pixels. There is no need to let them.
Therefore, when a color filter is provided in the display area 22A, the color filter can be made transparent. That is, a color filter that transmits the monochromatic light emitted from each of the LEDs 421, 422, 431, and 432 without changing the luminance characteristic thereof can be obtained.

<3. Third Embodiment>
FIG. 12 is a schematic plan view and a side view of a backlight unit 40B according to the third embodiment of the present invention.
In the present embodiment, the configurations of the leading light portions 441B and 451B, the arrangement of the sub light guide portions 442B and 452B, the arrangement of the backlights 42 and 43, and the directions of the refractive surfaces 491R, 491G, 491B, and 491C of the lenticular lens 47B are as follows. Different from the second embodiment.

The first main light unit 441B includes monochromatic main light units 448R and 448C formed along two opposite sides of the light guide unit 41B corresponding to the first backlight 42.
The first sub light guides 442B are alternately connected to the single color main light units 448R and 448C, respectively.
Further, the single color main light unit 448R is disposed adjacent to the red (R) LED 421, and the single color main light unit 448C is disposed adjacent to the cyan (C) LED 422.

The second main light unit 451B includes monochromatic main light units 458B and 458G formed along two opposite sides of the light guide unit 41B corresponding to the second backlight 43.
The second sub light guides 452B are alternately connected to the single color main light units 458B and 458G, respectively.
Further, the single color main light unit 458 </ b> B is disposed adjacent to the blue (B) LED 431, and the single color main light unit 458 </ b> G is disposed adjacent to the green (G) LED 432.

FIG. 13 is a schematic plan view showing the configuration of the lenticular lens 47B.
As shown in FIG. 13, the refracting surface 491R is formed thinner as it goes downward in FIG. 13, the refracting surface 491G is formed thinner as it goes left in FIG. 13, and the refracting surface 491C goes upward in FIG. The refractive surface 491B is formed thinner toward the right side in FIG.

  Therefore, according to the present embodiment, there are the same effects as in the second embodiment.

<4. Fourth Embodiment>
FIG. 14 is a schematic plan view of a display area 22C according to the fourth embodiment of the present invention.
In the present embodiment, the configuration of the display area 22C and the configuration of the backlight unit 40C are different from those of the first embodiment.

The display area 22C is configured by arranging a plurality of pixels 23C, and each pixel 23C is a pixel to which three types of light having different luminance characteristics of red (R), green (G), and blue (B) are respectively incident. 25R, 25G, 25B, and an empty region 25N where no light is incident are included.
Specifically, the rows in which the pixels 25R and the empty regions 25N are alternately arranged, the rows in which the pixels 25G and the empty regions 25N are alternately arranged, and the rows in which the pixels 25B and the empty regions 25N are alternately arranged are in the column direction. Arranged in order.

FIG. 15 is a schematic plan view and a side view of the backlight unit 40C.
The backlight unit 40C includes a substantially rectangular light guide portion 41C and a backlight 42C as a light source disposed along one side of the light guide portion 41C.

The backlight 42C is composed of three or more different monochromatic light sources.
Specifically, the backlight 42C includes a plurality of red (R), green (G), and blue (B) LEDs 421, 422, and 423 arranged in order. Thereby, the backlight 42C emits red light, green light, and blue light.

  The light guide 41C guides the light emitted from the backlight 42C. The light guide 441C corresponding to the backlight 42C, a plurality of core members 445 disposed along the backlight 42C, and the LED A plurality of sub light guides 442C connected to the optical part 441C. Specifically, these sub light guide portions 442C extend in a direction orthogonal to the direction in which the main light portion 441C extends, and are provided substantially in parallel at predetermined intervals. Accordingly, the auxiliary light guide unit 442C is provided in a comb tooth shape with respect to the main light unit 441C. The main light unit 441C is disposed adjacent to the backlight 42C.

The sub light guide part 442C and the core material 445 of the light guide part 41C intersect with the display region 22C so as to repeat approach or separation alternately.
Accordingly, a bent portion 443C that guides the light emitted to the first sub light guide portion 442C to the pixels 25R, 25G, and 25B is formed in a region close to the display region 22C of the sub light guide portion 442C.

The main light guide unit 441C includes monochromatic main light units 448R, 448G, and 448B that are stacked to correspond to the LEDs 421, 422, and 423 constituting the backlight 42C.
The sub light guide unit 442C is connected in order to each single color main light unit 448R, 448G, 448B.
Further, the monochromatic main light unit 448R is disposed adjacent to the red (R) LED 421, the single color main light unit 448G is disposed adjacent to the green (G) LED 422, and the single color main light unit 448B is disposed in the blue color. It is arranged adjacent to the LED 423 in (B).

The operation of the above electro-optical device is as follows.
The backlight 42C emits red (R), green (G), and blue (B) light. Then, these lights respectively enter the monochromatic main light portions 448R, 448G, and 448B of the main light portion 441C, pass through the sub light guide portion 442C, and exit from the bent portion 443C of the sub light guide portion 442C. The red (R), green (G), and blue (B) light emitted from the bending portion 443C passes through the liquid crystal shutter of the liquid crystal 30 and passes through the pixels 25R, 25G, and 25B in the display area 22C.

According to this embodiment, there are the following effects.
(6) Only light emitted from the LED 421 of the backlight 42C is incident on the pixel 25R, only light emitted from the LED 422 of the backlight 42C is incident on the pixel 25G, and the LED 423 of the backlight 42C is incident on the pixel 25B. Only the light emitted from is incident.

  Here, since the monochromatic light emitted from the LEDs 421, 422, and 423 is incident on each of the pixels 25R, 25B, and 25G, it is not necessary to selectively transmit only light of a specific color with a color filter or the like. Therefore, the light use efficiency of the backlight 42C can be improved to about 2 to 3 times.

<5. Fifth Embodiment>
FIG. 16 is a schematic plan view of a display area 22D according to the fifth embodiment of the present invention.
In the present embodiment, the configuration of the display area 22D and the configuration of the backlight unit 40D are different from those of the fourth embodiment.

The display region 22D is configured by arranging a plurality of pixels 23D. Each pixel 23D has pixels 25R, 25G, 25B, and 25C that receive four different types of light, red (R), green (G), blue (B), and cyan (C), respectively, and transmitted reflected light. The reflective pixels 26RR, 26GR, 26BR, and 26CR are configured to be included.
The reflective pixels 26RR, 26GR, 26BR, and 26CR are four types of color filters having different light transmission characteristics of red (R), green (G), blue (B), and cyan (C), respectively. This is a region through which light reflected by the element substrate 10 is transmitted.

  In the display area 22D, rows in which the reflective pixels 26CR and the pixels 25B are alternately arranged, rows in which the pixels 25C and the reflective pixels 26BR are alternately arranged, rows in which the reflective pixels 26RR and the pixels 25G are alternately arranged, and pixels 25R The rows in which the reflective pixels 26GR are alternately arranged are arranged in order along the column direction.

FIG. 17 is a schematic plan view and a side view showing the backlight unit 40D.
The backlight unit 40D is disposed on the side of the display region 22D of the light guide 41D, the backlight 42D as a light source disposed along one side of the light guide 41D, and the substantially rectangular light guide 41D. Lenticular lens 47D.

  The backlight 42D includes a plurality of red (R), green (G), blue (B), and cyan (C) LEDs 421, 422, 423, and 424 arranged in order. Thereby, the backlight 42D emits red light, green light, blue light, and cyan light.

  The light guide unit 41D includes a main light unit 441D corresponding to the backlight 42D, a plurality of core members 445 arranged along the backlight 42D, and a plurality of sub light guide units 442D connected to the main light unit 441D. And comprising. Specifically, these sub light guide portions 442D extend in a direction orthogonal to the direction in which the main light portion 441D extends, and are provided substantially in parallel at predetermined intervals. Accordingly, the sub light guide unit 442D is provided in a comb-like shape with respect to the main light unit 441D. The main light unit 441D is disposed adjacent to the backlight 42D.

The main light guide unit 441D includes monochromatic main light units 448R, 448G, 448B, and 448C that are stacked to correspond to the LEDs 421, 422, 423, and 424 constituting the backlight 42D.
The sub light guide unit 442D is connected in order to each single color main light unit 448R, 448B, 448C, 448G.
Further, the monochromatic main light unit 448R is disposed adjacent to the red (R) LED 421, the single color main light unit 448G is disposed adjacent to the green (G) LED 422, and the single color main light unit 448B is disposed in the blue color. The (B) LED 423 is disposed adjacently, and the monochromatic main light unit 448C is disposed adjacent to the cyan (C) LED 424.

The sub light guide unit 442D is configured by a glass fiber and a coating material that covers the surface of the glass fiber.
A light emitting unit 444D that emits light passing through the glass fiber is formed at a position in the vicinity of the display region 22D of the sub light guide unit 442D. Specifically, a light emitting portion 444D is formed in the bent portion 443D of the sub light guide portion 442D.

As shown in FIG. 17, a lenticular lens 47D for changing the light emission direction is provided on the light emitting portion 444D of the sub light guide portion 442D.
The lenticular lens 47D is configured by arranging a plurality of lenses 48D having a refracting surface 491D. Specifically, each refracting surface 491D is formed thinner toward the right in FIG.

The operation of the above electro-optical device is as follows.
The backlight 42D emits red (R), green (G), blue (B), and cyan (C) light. Then, these lights respectively enter the monochromatic main light portions 448R, 448G, 448B, and 448C of the main light portion 441D, pass through the sub light guide portion 442D, and exit from the light emitting portion 444D of the sub light guide portion 442D. The light of red (R), green (G), blue (B) and cyan (C) emitted from the light emitting unit 444D passes through the lens 48D of the lenticular lens 47D, and the exit direction is directed to the display area 22D at the refracting surface 491D. The liquid crystal 30 is aligned substantially vertically and passes through a liquid crystal shutter by the liquid crystal 30. Thereafter, these lights pass through the pixels 25R, 25G, 25B, and 25C in the display region 22D.
In addition, light incident from the outside is reflected by the reflection pixels, passes through the liquid crystal shutter of the liquid crystal 30, and passes through the reflection color filters 26R, 26G, 26B, and 26C.

According to this embodiment, there are the following effects.
(7) Since the reflection pixel that reflects the light from the outside is provided, the light that is incident from the outside and reflected by the reflection pixel is also incident on the display region 22D in addition to the light that is incident from the backlight unit 40D. Therefore, the light use efficiency of the backlight unit 40D can be further improved.

<6. Modification>
(1) In the first embodiment described above, the pixel 23 is composed of four types of color filters 24R, 24G, 24B, and 24C of red (R), green (G), blue (B), and cyan (C). Not limited to this. That is, you may use the color filter and LED as shown below.

The colored area comprises one pixel with four colored areas. The four colored areas include a blue hue colored area, a red hue colored area, and a hue from blue to yellow in the visible light area (380-780 nm) in which the hue changes according to the wavelength. It consists of the coloring area | region of the 2 types of hues selected among.
Although it is used here as a system, for example, if it is a blue system, it is not limited to a pure blue hue, but includes a bluish purple or a bluish green. If it is a red hue, it is not limited to red but includes orange. These colored regions may be composed of a single colored layer, or may be composed of a plurality of colored layers having different hues. In addition, although these colored regions are described in terms of hue, the hue can be set by changing the saturation and lightness as appropriate.

  Although not shown, red (R), blue (B), green (G), and cyan (C) in FIGS. 3, 4, 6, 7, 12, 16 and 17 described above are respectively red hues. The coloring region (R), the coloring region (B) of a blue hue, and the coloring region (G and C) of two hues selected from the hues from blue to yellow may be applied.

As a specific hue range, a colored region of a blue hue is from violet to blue-green, and more preferably from indigo to blue.
The colored region of the red hue is orange to red.
One colored region selected with a hue from blue to yellow is blue to green, more preferably blue-green to green.
The other colored region selected with a hue from blue to yellow is green to orange, more preferably green to yellow, or green to yellow-green.
Here, the same hue is not used for each colored region. For example, when a green hue is used in two colored regions selected from hues of blue to yellow, the other uses a blue or yellowish green hue for one green.
Thereby, a wider range of color reproducibility than the conventional RGB colored region can be realized.

Although a wide range of color reproducibility has been described in terms of hue, it will be expressed below in terms of wavelengths that pass through the colored region.
The blue colored region is a colored region having a wavelength peak of 415 to 500 nm, and preferably a colored region of 435 to 485 nm.
The red colored region is a colored region having a wavelength peak of 600 nm or more, and preferably a colored region having a wavelength peak of 605 nm or more.
One colored region selected with a hue from blue to yellow is a colored region having a wavelength peak of 485 to 535 nm, and preferably a colored region having a wavelength of 495 to 520 nm.
The other colored region selected with a hue from blue to yellow is a colored region having a wavelength peak of 500 to 590 nm, preferably a colored region of 510 to 585 nm, or a colored region of 530 to 565 nm.

Next, it is expressed by an x, y chromaticity diagram.
The blue colored region is a colored region in which x ≦ 0.151 and y ≦ 0.056, and preferably in a color in which 0.134 ≦ x ≦ 0.151 and 0.034 ≦ y ≦ 0.2 It is an area.
The red coloring region is a coloring region satisfying 0.643 ≦ x and y ≦ 0.333, and preferably coloring satisfying 0.643 ≦ x ≦ 0.690 and 0.299 ≦ y ≦ 0.333. It is an area.
One colored region selected with a hue from blue to yellow is a colored region in which x ≦ 0.164 and 0.453 ≦ y, and preferably 0.098 ≦ x ≦ 0.164 and 0.453. It is a colored region in ≦ y ≦ 0.759.
The other colored region selected with a hue from blue to yellow is a colored region in 0.257 ≦ x, 0.606 ≦ y, and preferably 0.257 ≦ x ≦ 0.357, 0.606. It is a colored region in ≦ y ≦ 0.670.
These four colored regions can be applied within the above-described range when the sub-pixel includes a transmission region and a reflection region.

Examples of the configuration of the four colored regions include the following.
Colored areas with hues of red, blue, green, and cyan (blue green).
Colored areas with hues of red, blue, green, and yellow.
Colored areas with hues of red, blue, dark green, and yellow.
Colored areas of red, blue, emerald, and yellow.
Colored areas with hues of red, blue, dark green, and yellowish green.
Colored areas with hues of red, blue-green, dark green, and yellow-green.

<7. Application example>
Next, an electronic apparatus to which the electro-optical device 1 according to the above-described embodiments and application examples is applied will be described.
FIG. 18 is a perspective view illustrating a configuration of a mobile phone to which the electro-optical device 1 is applied. The cellular phone 3000 includes a plurality of operation buttons 3001, scroll buttons 3002, and the electro-optical device 1. By operating the scroll button 3002, the screen displayed on the electro-optical device 1 is scrolled.

  As the electronic apparatus to which the electro-optical device 1 is applied, in addition to the one shown in FIG. 18, a digital still camera, a liquid crystal television, a viewfinder type, a monitor direct view type video tape recorder, a car navigation device, a pager, an electronic notebook, Examples include a calculator, a word processor, a workstation, a videophone, a POS terminal, and a device equipped with a touch panel. The electro-optical device 1 described above can be applied as a display unit of these various electronic devices.

1 is a perspective view illustrating an overall configuration of an electro-optical device according to a first embodiment of the invention. It is ZZ 'sectional drawing of FIG. 3 is a schematic plan view of a display area of the electro-optical device. FIG. (A) is a schematic plan view of a backlight unit constituting the electro-optical device, and (b) and (c) are side views thereof. FIG. 3 is a schematic plan view showing a state where the backlight unit is overlaid on a display area of the electro-optical device. It is a schematic plan view of the display area which concerns on 2nd Embodiment of this invention. (A) is a schematic plan view of a backlight unit constituting the electro-optical device, and (b) and (c) are side views thereof. It is a side view of the light guide part of the backlight unit. (A) is a schematic plan view of the lenticular lens of the backlight unit, and (b) and (c) are side views thereof. It is a side view of the said backlight unit. FIG. 3 is a schematic plan view showing a state where the backlight unit is overlaid on a display area of the electro-optical device. (A) is a schematic plan view of a backlight unit according to a third embodiment of the present invention, and (b) and (c) are side views. (A) is a schematic plan view of the lenticular lens of the said backlight unit, (b) And (c) is a side view. FIG. 10 is a schematic plan view of a display area of an electro-optical device according to a fourth embodiment of the invention. (A) is a schematic plan view of the backlight unit of the electro-optical device, and (b) is a side view. FIG. 10 is a schematic plan view of a display area of an electro-optical device according to a fifth embodiment of the invention. (A) is a schematic plan view of the backlight unit of the electro-optical device, and (b) is a side view thereof. It is a perspective view which shows the structure of the mobile telephone to which the said electro-optical apparatus is applied. (A) is a schematic plan view which shows the structure of the backlight unit which concerns on a prior art example, (b) is a side view. It is a figure which shows the light transmission characteristic of the color filter which concerns on a prior art example. It is a figure which shows the luminance characteristic of 3 color LED which concerns on a prior art example. It is a figure which shows the luminance characteristic of the cold cathode tube which concerns on a prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electro-optical apparatus, 22, 22A, 22C, 22D ... Display area (display part), 23, 23A, 23C, 23D ... Pixel, 24R, 24G, 24B, 24C ... Color filter, 25R, 25G, 25B, 25C ... Pixel, 26R, 26G, 26B, 26C ... reflective pixel, 41, 41A, 41B, 41C, 41D ... light guide, 42 ... first backlight (first sub-light source), 42C, 42D ... backlight (light source), 43 ... 2nd backlight (2nd sublight source), 44, 44A, 44B ... 1st light guide part, 45, 45A, 45B ... 2nd light guide part, 47, 47B, 47D ... Lenticular lens, 441, 441A, 441B: First leading light unit, 442, 442A, 442B ... First sub light guiding unit, 451, 451A, 451B ... Second leading light unit, 452, 452A, 452B ... Second sub Light part, 443, 443C, 443D, 453, 443A, 453A ... Bending part, 448R, 448C, 448B, 448G, 458B, 458G ... Monochromatic led light part, 444, 444D, 454 ... Light emitting part, 61 ... First filter group , 62 ... second filter group, 421 ... red LED (red light source), 422 ... cyan LED (green light source), 423 ... blue LED (blue light source), 424 ... green LED (green light source), 431 ... Blue LED (blue light source), 432... Green LED (green light source).

Claims (11)

A display unit in which a plurality of pixels are arranged; a light source; and a light guide unit that guides light emitted from the light source to the pixels. Each pixel includes a plurality of color filters having different light transmission characteristics. An electro-optic device,
The light source includes a first sub-light source and a second sub-light source,
The light guide unit includes a first light guide unit that guides light emitted from the first sub-light source, and a second light guide unit that guides light emitted from the second sub-light source,
The first light guide unit includes a first main light unit corresponding to the first sub light source, and a plurality of first sub light guide units connected to the first main light unit,
The second light guide unit includes a second leading light unit corresponding to the second sub light source, and a plurality of second sub light guiding units connected to the second leading light unit,
The electro-optical device, wherein the plurality of first sub light guide units and the plurality of second sub light guide units intersect so as to alternately approach or separate from the display unit. The electro-optical device according to claim 1.
The first sub-light source and the second sub-light source are each composed of two different types of monochromatic light sources,
Each of the first led light unit and the second led light unit includes a single color led light unit that is formed to be stacked corresponding to the single color light source,
The electro-optical device, wherein the first sub light guide unit and the second sub light guide unit are alternately connected to the monochromatic main light guide units, respectively. The electro-optical device according to claim 1.
The first sub-light source and the second sub-light source are each composed of two different types of monochromatic light sources,
Each of the first initiative light section and the second initiative light section includes a single color initiative light section formed along two opposite sides of the light guide section corresponding to the monochrome light source,
The electro-optical device, wherein the first sub light guide unit and the second sub light guide unit are alternately connected to the monochromatic main light guide units, respectively. The electro-optical device according to claim 1,
The first sub light guide unit and the second sub light guide unit are configured by a glass fiber and a surface coating material that covers a surface of the glass fiber,
The surface coating material is removed at a position in the vicinity of the display unit of the first sub light guide unit and the second sub light guide unit, and a light emitting unit that emits light passing through the glass fiber is formed. An electro-optical device. The electro-optical device according to claim 4.
An electro-optical device, wherein a lenticular lens that changes a light emission direction is provided on the light emitting units of the first sub light guide unit and the second sub light guide unit. An electro-optical device including a display unit in which a plurality of pixels are arranged, a light source, and a light guide unit that guides light emitted from the light source to the pixel,
The plurality of pixels include three or more types of pixels,
The light source is disposed along one side of the light guide;
The light guide unit includes a main light unit corresponding to the light source, a plurality of core members arranged along the light source, and a plurality of sub light guide units connected to the main light unit,
The sub light guide part and the core material intersect so as to alternately approach or separate from the display part,
The light source is composed of three or more different monochromatic light sources,
The leading light unit includes a monochromatic leading light unit that is laminated correspondingly to a single color light source that constitutes the light source,
The electro-optical device, wherein the sub light guide unit is sequentially connected to the monochromatic main light units. The electro-optical device according to claim 6,
The electro-optical device, wherein the display unit includes a reflective pixel that reflects light from the outside in addition to the three or more types of pixels. An illumination device comprising a light source and a light guide that guides light emitted from the light source,
The light source includes a first sub-light source and a second sub-light source,
The light guide unit includes a first light guide unit that guides light emitted from the first sub-light source, and a second light guide unit that guides light emitted from the second sub-light source,
The first light guide unit includes a first main light unit corresponding to the first sub light source, and a plurality of first sub light guide units connected to the first main light unit,
The second light guide unit includes a second leading light unit corresponding to the second sub light source, and a plurality of second sub light guiding units connected to the second leading light unit,
The lighting device, wherein the plurality of first sub light guides and the plurality of second sub light guides intersect so as to alternately approach or separate from the light emission direction. The lighting device according to claim 8.
The first sub-light source and the second sub-light source are each composed of two different types of monochromatic light sources,
Each of the first led light unit and the second led light unit includes a single color led light unit that is formed to be stacked corresponding to the single color light source,
The plurality of first sub light guide units and the plurality of second sub light guide units are alternately connected to the single color lead light units, respectively. The lighting device according to claim 8.
The first sub-light source and the second sub-light source are each composed of two different types of monochromatic light sources,
Each of the first leading light unit and the second leading light unit includes a single color leading light unit formed along two opposite sides of the light guide unit corresponding to each of the single color light sources,
The plurality of first sub light guide units and the plurality of second sub light guide units are alternately connected to the single color lead light units, respectively. An illumination device comprising a light source and a light guide that guides light emitted from the light source,
The light source is disposed along one side of the light guide;
The light guide section includes a main light section corresponding to the light source, a plurality of core members arranged along the light source, and a plurality of sub light guide sections connected to the main light section,
The sub light guide part and the core member intersect so as to alternately repeat approach or separation with respect to the light emission direction,
The light source is composed of three or more different monochromatic light sources,
The leading light unit includes a monochromatic leading light unit that is laminated correspondingly to a single color light source that constitutes the light source,
The lighting device according to claim 1, wherein the sub light guide unit is connected to each of the monochromatic main light units in order.

Images