JP2827604B2 - LCD projector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal projector.
Things. [0002] 2. Description of the Related Art A liquid crystal projector uses a liquid crystal display panel.
To display an image such as a television image using this liquid crystal.
Display image on the display panelEnlarged by optical projection means
Projecting on a clean surface to convert a large screen image to a screen surface
It forms an image. [0003]Conventionally, as this liquid crystal projector, 1
Using a liquid crystal display panel, the display image is projected and
Display color differs from that of the method that forms an image on a clean surface
Using multiple liquid crystal display panels, these liquid crystal display panels
Image of each color displayed by the
Projected so that they overlap each other, and
-There is a system that forms an image on a screen surface. [0004]Note that the one liquid crystal display panel is used.
LCD projectors form black and white images on the screen
And a multi-color image such as a full-color image.
Some form an image on a clean surface. [0005]Also, using the plurality of liquid crystal display panels,
LCD projectors can display multi-color images on the screen.
The liquid crystal projector
Is generally the color component of a multicolor image.Red color
Red image display panel for displaying the
A green image display panel for displaying images and a blue component image
And three blue liquid crystal display panels.
The display images of these three display panels, that is, the red image
And project the green and blue images on the screen
On the screen surfaceMulticolor color
2. Description of the Related Art A configuration for forming an image is known. [0006] [Problems to be solved by the invention]Above
Conventional liquid crystal projectors use a single liquid crystal display panel.
Some devices use multiple LCD panels,
The resolution of the image formed on the clean surface is not enough
Have a problem. [0007]That is, for example, one liquid crystal display panel
In the case of a liquid crystal projector to be used, the liquid crystal display panel
Screen is enlarged by the optical projection means.
The image is projected on the LCD panel
Pixel size and pixel spacing
Is an enlarged image, so it is not
The image to be formed is a rough image with a low resolution. [0008]It especially displays multi-color images
Notable in liquid crystal projectors using liquid crystal display panels
And a liquid crystal display panel for displaying the multicolor image.
As is well known, a red pixel, a green pixel, and a blue pixel
It displays images that are arranged alternately and is adjacent
One color image by combining three pixels of red, green, and blue
Element is expressed, so the screen image is enlarged
Image has a very low resolution.
U. [0009]On the other hand, the above-mentioned red image display panel and green image
Three liquid crystal display panels, a display panel and a blue image display panel
In the case of a liquid crystal projector that uses
Each pixel of the multicolor image to be imaged has three liquid crystal display panels.
The red, green, and blue pixels that are shared and displayed by the
Therefore, the number of pixels is the same as the number of pixels on the LCD panel.
The same, thus displaying a multi-color image 1
Resolution compared to the one using two LCD panels
A good image can be formed on the screen surface. [0010]Also, according to this liquid crystal projector,
The brightness of each pixel on the clean surface is
And the brightness of the red, green, and blue projected pixels
Become Therefore, a liquid crystal projector using one liquid crystal display panel
The brightness of the image formed on the screen surface is higher than that of
It becomes. [0011]However, using these three liquid crystal display panels
Multi-color images formed on the screen even with a liquid crystal projector
A color image is displayed on a liquid crystal display panel with one pixel.
Only the pixel size and pixel spacing are the same as
Because the image is enlarged, the resolution is satisfactory
Not necessarily, and the brightness is not always sufficient
I couldn't say it. The number of display pixels of the liquid crystal display panel is increased.
if,Image on screenPictureImage resolutionincrease
Can increase the number of display pixels on the LCD panel.
Doing so is difficult with current manufacturing technology. An object of the present invention is toDramatically improved resolution
Screen with high quality and high brightness.
Can be imaged on the lean surfaceLCD projector
To provide. [0014] A liquid crystal project according to the present invention.
IsDisplaying images with predetermined pixel spacing at least
Image display means having one liquid crystal display panel
And a display image of a liquid crystal display panel of the plurality of image display means.
The image is projected on the screen surface, and the
The image in which the projected pixels from the LCD panel are alternately arranged
Optical projection means for forming an image on the screen surface;
The liquid crystal display panel has a pair with each pixel portion.
An optical member having a condensing lens portion facing the
The width of the display pixel is compressed for each pixel by the optical member of
Displaying an image having the predetermined pixel interval.
It is a feature. [0015]As one embodiment of the present invention, the plurality of
Image display means, each having a predetermined pixel interval
Panel group consisting of three liquid crystal display panels that display
age , These display panelsLCD panel of each group
First, the first liquid crystal display panel is a red component image
A red image display panel that displays
Green image display panel to display the green component image
And the third liquid crystal display panel as a blue component
And a blue image display panelThe optical projection
Each liquid crystal display panel of each display panel group is shaded.
The display image of the panel is projected on the screen,
The red, green, and blue projected pixels from the display panel
A color image in which color pixels that overlap with
It is conceivable to form an image on a clean surface. [0016] [Action]The liquid crystal projector of the present invention can display a plurality of images.
Means between the predetermined pixels respectively displayed by the liquid crystal display panel
The projected image with the gap is projected on the screen surface by the optical projection
Shade from the LCD panel of each image display
An image in which the projected pixels are alternately arranged on the screen surface
According to this liquid crystal projector,
The image formed on the screen is a single liquid crystal display panel
The same multiple of the number of display pixels as the number of the image display means
(If two image display means are provided,
(Twice the number of display pixels).
The resolution of the image can be dramatically increased. [0017]Moreover, in the present invention, the liquid of the image display means is provided.
The liquid crystal display panel is
An optical member having a lens portion is provided.
Compress the display pixel width for each pixel and
Image is displayed, the pixel display area
Not only the light that enters the area, but also the parts outside that area
Light is also collected by the optical member and used for pixel display
To reduce the incident light on the LCD panel.
Efficient use of high brightness pixels without loss
Can be displayed, so the screen image
High-quality images with sufficiently high brightness
You. [0018]In the present invention, as in the above-described embodiment,
In addition, each of the plurality of image display means, A predetermined pixel interval
Red image display panel and green image display panel
From a liquid crystal display panel consisting of a panel and a blue image display panel
Display panel group, and each liquid in each display panel group
The red, green, and blue projected pixels from the crystal display panel
A color image in which color pixels that overlap each other are arranged alternately
If you focus the image on the screen surface,
That the resolution of the formed image can be dramatically increased
In addition, red, green,
Blue projection pixels are collected by the collection lens section of the optical member.
High-brightness pixels, and these high-brightness projected pixels
To create color pixels overlapping on a clean surface,
The brightness of the clean image can be further increased. [0019] An embodiment of the present invention will be described below with reference to the drawings.
I will tell.FIG. 1 shows the principle configuration of a liquid crystal projector.
You. [0020]This liquid crystal projector has a predetermined pixel interval
At least one liquid crystal display panel for displaying an image having
It uses multiple image display means with
In this embodiment, two image display means are provided, and these image display means are provided.
The image display means is a table composed of three liquid crystal display panels.
Panel group. In FIG. 1, reference numeral 10 denotes three transmission type liquid crystal tables.
Display panel 11R, 11G, 11B.
A panel group 20 has three transmission type liquid crystal display panels 21R and 21R.
This is a second display panel group including 1G and 21B. Each liquid crystal table of the two display panel groups 10 and 20
Of the first liquid crystal display panels 11R, 21
R is each full color imageEach color of multi-color image such as
Of the ingredientsRed image display panel for displaying red component image
And the second liquid crystal display panels 11G and 21G are
A green image display panel for displaying a green component image.
The third liquid crystal display panels 11B and 21B respectively
It is a blue image display panel that displays the image of the blue component.
You. This liquid crystal projector is used for television pictures.
StatuesMulticolorProject a color image onto the screen 30
SoThe multicolorRed, green, and blue primary colors
The red image is the red image of both display panel groups 10 and 20
The display is divided and displayed on the display panels 11R and 21R, and a green image is displayed.
The image is shared and displayed on the green image display panels 11G and 21G.
Then, the blue image is separated by the blue image display panels 11B and 21B.
And display each of the first display panel groups 10.
Red, green, and red display on the display panels 11R, 11G, and 11B.
Blue image and each display panel 2 of the second display panel group 20
Red, green, and blue images displayed by 1R, 21G, and 21B
To the projection lenses 12 and 22Optical projection means
ExpandProjected on screen 30And30 screens
ToMulticolor color image31 is imaged. In FIG. 1, both display panel groups 10, 2 are shown.
0 display panels 11R, 11G, 11B and 21
R, 21G, and 21B are arranged side by side.
However, these display panels are actually arranged as described below.
Is provided. A specific configuration of the liquid crystal projector will be described.
In FIG. 2 and FIG.
The case 100 has a case 100
The first display panel group 10 and the second display panel group 20
The two display panels are arranged vertically.
A light source 200 is provided behind 10, 20. The light source 200 is a xenon lamp or
Light source lamp 2 consisting of a high-intensity lamp such as a halogen lamp
01 and the light emitted from the light source lamp 201 in two tables.
Reflector 2 that reflects light toward display panel groups 10 and 20
02 in front of the light source 200.
Irradiation light from the light source 200 reflected by the reflector 202
Fresnel lens for ray correction (parallel
(Cura Fresnel lens) 203 is disposed. What
Note that the reflector 202 is provided by the light source lamp 201.
Synchrotron radiation is reflected as parallel rays parallel to the reflector optical axis.
Parabolic mirror reflector, in which case the above
The light beam correcting Fresnel lens 203 is unnecessary. The first part of the case 100 has a first
Each display panel 11R, 11G, 11 of the display panel group 10
The display image of B is placed outside the projector body.
A projection lens 12 for projecting onto a screen 30;
Each display panel 21R, 21G, 21 of the display panel group 20
B to project the display image B on the screen 30
And the projections 22 are provided side by side.
The optical axes of the lenses 12 and 22 are centered on the screen 30.
2 is tilted as shown in FIG.
Have been. Each display panel of the display panel groups 10 and 20
The arrangement of the first display panel group 10 will be described.
Of the display panels 11R, the red image display panel 11R
This red lens is arranged so as to face the projection lens 12.
In front of the color image display panel 11R (on the light emitting surface side),
First half mirror 13 and second half for image synthesis
The mirrors 14 are arranged side by side. The half mirrors 13 and 14
Incident light from the surface (vertical surface) is the half mirror surface
(Inclined surface) to be emitted to the projection lens 12 side,
Light incident on the half mirror surface is projected on this half mirror surface
This half-mirror reflects light toward the lens 12 side.
The light incident surfaces of the red image display panels 11 and 14
R and the half mirror faces in opposite directions
It is provided in a girder state. On the other hand, the green image display panel 11G is
Red, facing half mirror surface of 1 half mirror 13
It is arranged at a right angle to the image display panel 11R, and this green
Behind the image display panel 11G (on the light incident surface side), a light source 2
00 to the green image display panel 11G.
An illumination light reflecting mirror 15 to be emitted is provided. The blue image display panel 11B has a green image display panel.
A red image display panel is provided on the opposite side of the display panel 11G.
11R is disposed in parallel with the blue image display panel.
This blue image display panel is located in front of the light
The light (red image) transmitted through the tunnel 11B is converted into a second half mirror.
Image reflection mirror that reflects light toward the half mirror surface
A color 16 is provided. The illumination light from the light source 200 (light ray compensation)
Parallel light corrected by the positive Fresnel lens 203
Lines) indicate the red image display panel 11R and the blue image display panel.
Directly to the panel 11B and to the green image display panel 11G.
After being reflected by the bright light reflection mirror 15 and entering
These display panels 11R, 11G, and 11B are transparent.
Spent light, that is, displayed by the red image display panel 11R.
Red image and green image display panel 11G
And the blue image display panel 11B.
The blue image shown is oneMulticolorComposited into a color image
AndWith the projection lens 12Expanded30 screens
Throw inBe shadowed. The synthesis of the image of each color is performed by the first and second c.
Green mirrors 13 and 14
The green image displayed by the image display panel 11G is
The first light reflected by the half mirror surface of the half mirror 13
The red image transmitted straight through the half mirror 13 is synthesized,
Further, the blue image displayed by the blue image display panel 11B is displayed.
The image is displayed on the image reflecting mirror 16 and the second half mirror 14.
Reflected by the half mirror surface of the second half mirror 14
It is combined with a red-green combined image that passes straight through. The red image display panel 11R and the green image
The image display panel 11G and the blue image display panel 11B
When combining each display image, all pixels of each display image
They are positioned so as to completely overlap. The arrangement of each display panel is based on the second display panel.
The same applies to the second group of display panels.
Displayed by the red image display panel 21R of the
A red image and a green image are displayed by the display panel 21G.
Green image and the blue image display panel 21B.
Blue image is the first and second half mirrors 23,
One by 24MulticolorComposited into a color imageAndProjection len
By 12Expanded30 screensThrow inShadowed
You. Each table of the first display panel group 10
The display panels 11R, 11G, and 11B are each in the horizontal direction.
Image with the pixel interval of approximately equal to the width of one pixel
Each of the second display panel groups 20
The display panels 21R, 21G, and 21B are each horizontally oriented.
The pixel interval in the direction is almost equal to the width of one pixel and
Each display panel 11R, 11 of the first display panel group 10
G, 11B display image not more than one pixel width in the horizontal direction
The displayed image is displayed. That is, FIGS. 4 and 5 show the first display.
One of the display panels 11R, 11G, 11B of the panel group 10.
This display panel is an enlarged view of the
It is an active matrix type liquid crystal display panel. In this liquid crystal display panel, the liquid crystal layer 40 is sandwiched.
One of a pair of transparent substrates 41a and 41b facing each other
A large number of pixel electrodes 42, 42 on the surface of the substrate 41a
And the pixel electrodes 42,
42, a number of thin film transistors that individually drive each pixel electrode.
A transistor (not shown) is formed on the other substrate 41b.
Each of the pixel electrodes 42, 42 has a counter electrode 43 formed thereon.
Applies gate pulse and data signal to its driving transistor.
It is driven by input. Further, the light emitting surface of the liquid crystal display panel
Is the water of the pixel displayed by each pixel electrode 42
Compress horizontal widthAs an optical memberLens filter
44 are provided. [0040]This lens filter 44 is a liquid crystal display panel.
To each pixel of this LCD panel
Form a number of converging lens portions 44a, 44a facing each other
The converging lens portions 44a, 44a,
Again the light collected at 44a Ray interpolation to correct parallel rays
The positive lens portions 44b, 44b are formed,liquid crystal
Displayed by the display panelToEach pixel of the image is
The horizontal width is compressed by the
The width in the direction is expressed as a narrow pixel whose width is almost half the pixel electrode width.
Is shown. [0041]In this embodiment, each condensing lens unit 4
4a and 44a are displayed in the vertical direction of the liquid crystal display panel.
The belt-shaped lens portions oppose the element electrode rows, respectively.
In addition, the ray correction lens units 44b, 44b
Belt-shaped lenses respectively corresponding to the optical lens portions 44a, 44a
Part department. The light exit surface of the lens filter 44
Is provided with a color filter 45.
The filter 45 is a red filter on the red image display panel 11R.
Filter, green image display panel 11G, green filter, blue
The image display panel 11B is a blue filter. On the light emitting surface of the color filter 45,
Black screen that blocks light leakage between display pixels of the liquid crystal display panel
The black grid 46 is printed and the vertical strike of the black grid 46 is
The live area is as wide as the interval between the display pixels arranged in the horizontal direction.
Width stripes, the horizontal stripes are aligned vertically
Small width stripes corresponding to the distance between display pixels
ing. The structure of this display panel is similar to that of the second display panel.
Of each display panel 21R, 21G, 21B
The same applies to each display panel of the second display panel group 20.
The pixels 21R, 21G, and 21B have their pixel electrodes in the first table.
Display panel 11R, 11G, 11B of display panel group 10
１ ／ pitch in the horizontal direction with respect to the pixel electrode arrangement pitch of
And each lens section of the lens filter
Similarly, the black grid on the color filter
It is assumed that it is formed shifted. FIGS. 6A, 6B and 6C show the first display.
Of each display panel 11R, 11G, 11B of the panel group 10.
FIGS. 7A, 7B, and 7C show display images.
Each display panel 21R, 21G, 21 of the display panel group 20
3B shows a display image. In this figure, R1₁, R1_Two, R1_Three
… And R2₁, R2_Two, R2_Three… Is a red image display panel
Each pixel of the red images R1 and R2 displayed by 11R and 21R
(Red pixel), G1₁, G1_Two, G1_Three… And G
2₁, G2_Two, G2_Three... are green image display panels 11G and 2
Each pixel of the green images G1 and G2 displayed by the 1G (green image)
Element), B1₁, B1_Two, B1_Three… And B2₁, B
2_Two, B2_Three.. Indicate blue image display panels 11B and 21B.
Each pixel (blue pixel) of the blue images B1 and B2 shown
The hatched portions are the vertical portions of the black grid 46.
Indicates the shaded area where light leakage was blocked by the stripes
ing. The above display panels 11R, 11G,
11B and 21R, 21G, 21B are, for example, horizontal
300 pixels from 1H to 300H in the vertical direction
500 150,000 pixel images with prime numbers from 1V to 500V
Is displayed. Then, each display of the first display panel group 10 is displayed.
Red, green, and blue displayed on panels 11R, 11G, and 11B
The display images R1, G1, and B1 are image synthesized as described above.
Half mirrors 13 and 14MulticolorMatches color images
Is formed and projected on the screen 30, and the second display panel
Display on each display panel 21R, 21G, 21B
Red, green, and blue display images R2, G2, and B2 are
One half mirror 23, 24MulticolorFor color images
The images are synthesized and projected on the screen 30 surface. FIG. 8 shows an image 3 formed on the screen 30.
1 is shown in FIG.₁Is the first display panel group 10
Display panels 11R, 11G, 11BThe projected pixel from
Color pixels,1_TwoIs the display panel 11
R, 11G, 11BColor image with overlapping projected pixels from
Elementary,1_ThreeAre the display panels 11R, 11G, and 11B.Or
Color pixels where these projected pixels overlapShows that
LaEach colorPixel 1₁, 1_Two, 1_Three… Is a vertical line
Lined up successively, while the width is almost equal to the width of one pixel
Images are formed side by side. Also, in FIG.₁Is the second display
Display panels 21R, 21G, 21B of the panel group 20From
Color pixels with overlapping projection pixels2_TwoIs the display
Flannel 21R, 21G, 21BPixels projected from
Color pixels,2_ThreeAre the display panels 21R, 21G,
21BColor pixels with overlapping projected pixels fromShows
You. TheseEach colorPixel 2₁, 2_Two, 2_Three…
Are the display panels 21R and 2R of the second display panel group 20.
1G, 21B display images R2, G2, B2 are the first display
Of each display panel 11R, 11G, 11B of the panel group 10.
One pixel width in the horizontal direction with respect to display images R1, G1, and B1
The first display panel group 10From
Each color where the projected pixels overlapPixel 1₁, 1_Two, 1_Three…
This between the columnsEach colorPixel 1₁, 1_Two, 1_Three… And horizontal
The images are alternately arranged in the directions. That is, the liquid crystal projector has a first
Display panels 11R, 11 of the display panel group 10 of FIG.
Red, green, and blue display images R1, G displayed by G, 11B
, B1 and three display panels of the second display panel group 20.
Display of red, green, and blue displayed by 21R, 21G, and 21B
Images R2, G2 and B2 are projected by projection lenses 12 and 22.
By projecting it on the screen 30Display of
Panel group 10Each display panel 11R, 11G, 11BOr
Color pixels where the red, green, and blue projected pixels overlap1₁,
1_Two, 1_Three... and the secondOf the display panel group 20Each display panel
21R, 21G, 21BRed, green and blue projection pixels from
Color pixels with overlapping2₁, 2_Two, 2_Three... and screen
Image on the 30th surfaceDisplay panel group 1
0'sEach display panel 11R, 11G, 11B has a horizontal
Image with the pixel interval of approximately equal to the width of one pixel
Let the secondOf the display panel group 20Each display panel 21
R, 21G, 21B have a horizontal pixel spacing of one pixel
At an interval substantially equal to the width ofDisplay panel group 1
0Display image of each display panel 11R, 11G, 11B
On the other hand, an image shifted by one pixel width in the horizontal direction can be displayed.
And the firstOf the display panel group 10Each display panel 11
R, 11G, 11BRed, green and blue projected pixels from
Color pixel1₁, 1_Two, 1_Three... and the secondDisplay panel
Group of 20Each display panel 21R, 21G, 21Bfrom
Color pixels with red, green, and blue projected pixels overlapping2₁,
2_Two, 2_Three... and alternately in the horizontal directionColorPicture
Image on screen 30ImageLike that
You. [0053]According to this liquid crystal projector, the screen
The image formed on the screen 30 is displayed on a single liquid crystal display panel.
For the number of pixels shown, the number of display panels
Screen imaging because it is made with the same multiple of pixels as the number
The resolution of the image can be dramatically increased. [0054]That is, in this embodiment, the first and second
A first display panel group 1 including display panel groups 10 and 20;
0'sEach display panel 11R, 11G, 11BProjection from
Color pixels with overlapping elements1₁, 1_Two, 1_Three…When,Second
Of the display panel group 20Each display panel 21R, 21G, 21
BColor pixels with overlapping projected pixels fromColor pixel
2₁, 2_Two, 2_Three... and alternately in the horizontal direction
Screen imageBecause I make 31
RecordThe number of pixels of the screen image 31 is one.
FlannelThis is twice the number of display pixels. [0055]For example, as in the above embodiment, the first display pattern
Flannel group 10Each of the display panels 11R, 11G, 11B and
2Of the display panel group 20Each display panel 21R, 21G,
The number of display pixels of 21B is 300 pixels in the horizontal direction,
In the case of 150,000 pixels of 500 pixels in the vertical direction,School
Lean imaging imageThe number of pixels in the horizontal direction is as shown in FIG.
600 pixels from 1H to 600H, the number of pixels in the vertical direction
500 to 300,000 pixels of 1V to 500VBecomes [0056]Also, according to this liquid crystal projector,
Color pixel 1 that forms an image on 30 clean surfaces ₁ , 1 _Two , 1 _Three
… And 2 ₁ , 2 _Two , 2 _Three ..., the first display panel group 1
0 of each display panel 11R, 11G, 11B and the second
Each display panel 21R, 21G, 21 of the display panel group 20
Created by the overlap of red, green and blue projected pixels from B
The color pixel 1 ₁ , 1 _Two , 1 _Three … And 2 ₁ , 2
_Two , 2 _Three The brightness of the projected images from the three display panels
The brightness is obtained by superimposing the original brightness. [0057]Furthermore, in the above liquid crystal projector,
Each of the display panel groups 10 and 20Each display panel 11R,
Light emission of 11G, 11B and 21R, 21G, 21B
A lens filter 44 is provided on the
4, the pixel displayed by each pixel electrode 42, 42
Water on each display panel by compressing the horizontal width of
Pixels whose horizontal pixel interval is almost equal to the width of one pixel
Because the image is displayed,Enter pixel display area
Not only the incident light, but also the incident light
The light can be collected by the optical member and used for displaying pixels.
Therefore, almost all light incident on the LCD panel is
High-brightness pixels are displayed efficiently without loss
Because you canThree display panelsRed from
Color pixel 1 where green and blue projected pixels overlap ₁ , 1 _Two , 1
_Three … And 2 ₁ , 2 _Two , 2 _Three …The brightness of the
hand,Screen image31 is a higher brightness image
be able to. [0058]In the above embodiment,Light of each display panel
Each of the display pixels is provided with the above-described black lattice 46 on the emission surface.
The light leakage between them is blocked by the black grid 46.
First, which is connected to the screen 30 side by side in the horizontal direction
Of the display panel group 10Each display panel 11R, 11G, 1
1BColor with overlapping projected pixels fromPixel 1₁, 1_Two,
1_Three... and the secondOf the display panel group 20Each display panel 21
R, 21G, 21BColor with overlapping projected pixels fromPicture
Element 2₁, 2_Two, 2_ThreePrevent the colors from mixing with ...
Pure and clearMulticolorColor image on screen 30Conclusion
Imagebe able to. Next, the first liquid crystal projector will be described.
Display of the display panel group 10 and the second display panel group 20
Panels 11R, 11G, 11B, 21R, 21G, 21
The driving method of B will be described. In this embodiment, the first field is used for the first field.
1Display panel group (hereinafter referred to as a first group) 10Each display
The odd-numbered V lines of the cells 11R, 11G, 11B and the secondTable
Display panel group (hereinafter, referred to as a second group) 20Each display panel
Pixels of even-numbered V lines of 21R, 21G, and 21B are displayed.
Then, in the next one field, each display panel 11R of the first group,
11G, 11B even-numbered V lines and second group of display panels
Display 21R, 21G, 21B odd V line pixels
I am trying to. FIG. 9 shows the six display panels 1 described above.
1R, 11G, 11B, 21R, 21G, 21B and their
The connection state of the drive circuit is shown.
Gate to the gate line of the matrix LCD panel
A scanning drive circuit for inputting a signal, 51 is a liquid crystal display panel.
Display drive circuit that inputs a gate signal to the
is there. The scanning drive circuit 50 outputs the gate pulse g1
 , G2, g3,...
In accordance with the timing of the gate pulses g1, g2, g3 ...
Output image data signals d1, d2, d3,. Then, the signals are sequentially output from the scanning drive circuit 50.
The gate pulses g1, g2, g3,...
Is applied to the first group display panels 11R and 11R.
G, 11B first gate line (each of the V lines in the first row)
The gate line of each transistor that drives the pixel electrode)
Second gate of second group display panel 21R, 21G, 21B
On the line, the second gate pulse g2 is the first group display panel.
Gate lines and second group of the gates 11R, 11G, 11B
First gaters of the liquid crystal display panels 21R, 21G, 21B
And the third gate pulse g3 is the first group display panel
11R, 11G, 11B third gate line and second group table
Gate lines of display panels 21R, 21G, 21B
And the fourth gate pulse g4 is the first group display panel 11
R, 11G, 11B fourth gate line and second group display
For the third gate lines of the tunnels 21R, 21G, 21B
As shown in the first field, the first group display panel 1
Odd-numbered gate lines 1R, 11G, 11B and second group
Even-numbered gate lines of the display panels 21R, 21G, 21B
In the next one field, the first group display panel 11R,
11G and 11B even-numbered gate lines and second group display panel
Input to odd-numbered gate lines 21R, 21G, 21B
Is done. The image data from the display drive circuit 51
Of the signals d1, d2, d3,..., D1, d4, d7, d
10 ... are red component image data signals, d2, d5, d8,
d11... are green component image data signals, d3, d6, d9.
 , D12... Are blue component image data signals. Then, the red component image data signal d 1,
.. among d4, d7, d10..., d1, d7.
Each signal line (pixel electrode drive gate) of the color image display panel 11R
The source or drain line of the transistor), d4,
d10... are the signal lines of the second group of red image display panels 21R.
And the green component image data signals d2, d5,
.. among d8, d11,..., d2, d8,.
Each of the signal lines of the display panel 11G has d5, d11.
Input to each signal line of the green image display panel 21G of the group.
And the blue component image data signals d3, d6, d9, d12.
, D3, d9,... Are the first group of blue image display panels 1.
.., D6, d12,...
The signal is input to each signal line of the display panel 21B. As described above, each of the display panels 11R, 11G,
11B, 21R, 21G, and 21B, and the first 1
The first group of display panels 11R, 11G, 1 in the field
1B odd-numbered V lines and the second group of display panels 21R, 2R.
The pixels of the even V line of 1G and 21B are displayed, and the next 1
The first group of display panels 11R, 11G, 1 in the field
1B even-numbered V lines and the second group of display panels 21R, 2R.
When the odd V line pixels of 1G and 21B are displayed, each table
Display panels 11R, 11G, 11B, 21R, 21G, 2
When the odd-numbered gate pulses g1, g3,.
ScreenImagingThe image is odd, as shown in FIG.
The first group display panels 11R, 11G, 11BfromStrange
Of several V linesColor pixels with overlapping projected pixels1₁,
1_Two, 1_Three… Is a black shadow part with a width of almost one pixel between each pixel
(Shaded area in the figure) to form an image
Second group display panel 21R, 21G, 21BfromEven V
Of the lineColor pixels with overlapping projected pixels2₁, 2_Two, 2
_Three… Has a black shadow area of about 1 pixel width between each pixel
Image 31a to be imaged by the
Screen when input g2, g4 ...Imagingimage
However, as shown in FIG. 11, the second group display panel 2
1R, 21G, 21BfromOdd V lineThe projected pixel is
Overlapping color pixels2₁, 2_Two, 2_Three…
An image is formed by sandwiching a black shadow area with a width of about 1 pixel, and
First group display panel 11R, 11G, 11BfromEven V
Of the lineColor pixels with overlapping projected pixels1₁, 1_Two, 1
_Three… Has a black shadow area of about 1 pixel width between each pixel
Becomes the image 31b to be formed byScreen imagingimage
Can reduce flicker. In the above embodiment,ThenEach display panel 11
R, 11G, 11B and 21R, 21G, 21B
Active matrix liquid crystal display panel.
Display panels 11R, 11G, 11B, 21R, 21
G and 21B are mutually orthogonal to a pair of substrate surfaces, respectively.
Matrix type with stripe electrodes
A liquid crystal display panel may be used.
It is not limited to the embodiment. Further, in the above embodiment, each display pattern of the first group is displayed.
The display images of the panels 11R, 11G and 11B areMulticolorMosquito
And a second group of display panels 21R and 21R.
G, 21B display imageMulticolorComposite into a color image
And these twoMulticolorProject a color image on the screen 30
The display panels 11R, 1
The display images of 1G, 11B, 21R, 21G, 21B are
All the images in oneMulticolorAfter combining with the color image
It may be projected on the screen surface, or this
Conversely, each display panel 11R, 11G, 11B, 21
R, 21G, 21B display images respectivelyOpticsProjection means
And project these images onto the screen surface.
It may be synthesized on the lean side. In the above embodiment, the external screen 3
A liquid crystal projector that projects an image on plane 0 is explained.
However, according to the present invention, the transmission type screen is provided on the front of the projector body.
Image projected on this transmissive screen with a lean
LCD panel viewed from the front of the projector
Of course, it can also be applied to a projector. [0070]Further, in the present invention, the image display
The columns are limited to a display panel group consisting of three liquid crystal display panels.
In other words, the point is that an image with a predetermined pixel interval
Provided with at least one liquid crystal display panel for displaying an image
Wherein the liquid crystal display panel is provided in each pixel portion thereof.
Equipped with optical members each having a condensing lens part facing each other
The width of the display pixel is adjusted for each pixel by this optical member.
To display an image having the predetermined pixel interval.
Anything can be used. [0071] According to the liquid crystal projector of the present invention,Multiple drawings
The predetermined liquid crystal display panels of the image display means respectively display
An image having a pixel interval is screened by optical projection means.
LCD panel of each image display means
Screen with projected pixels from the screen
Image on the screen, so it is imaged on the screenYou
The image resolution can be dramatically improved. [0072]Moreover, the liquid crystal display panel is
Condenser lens facing each element Optical member having a part
The width of the display pixel is adjusted for each pixel by this optical member.
To display an image with a predetermined pixel interval
Therefore, not only the light incident on the pixel display area
Light incident on a part outside the area is also collected by the optical member.
And can be used to display pixels.
With little loss of light incident on the crystal display panel
Can high-luminance pixels be displayed efficiently?
The screen image was made sufficiently bright.
High-quality images can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a principle configuration diagram of a liquid crystal projector showing one embodiment of the present invention. FIG. 2 is a plan view showing a specific configuration of the liquid crystal projector. FIG. 3 is a side view showing a specific configuration of the liquid crystal projector. FIG. 4 is an enlarged sectional view of a part of the liquid crystal display panel. FIG. 5 is an enlarged front view of a part of the liquid crystal display panel. FIG. 6 is a display image diagram of each display panel of a first display panel group. FIG. 7 is a display image diagram of each display panel of a second display panel group. FIG. 8 is a view showing a screen image . FIG. 9 is a connection diagram of each display panel showing a driving method of the display panel and its driving circuit. FIG. 10 is a screen image image when an odd-numbered gate pulse is applied to each display panel. FIG. 11 is a screen image image when an even-numbered gate pulse is applied to each display panel. [Description of Signs] 10: first display panel group, 11R: red image display panel, 11G: green image display panel, 11B: blue image display panel, 12: projection lens, 13, 14: half mirror for image synthesis, Reference numeral 20: second display panel group, 21R: red image display panel, 21G: green image display panel, 21B: blue image display panel, 22: projection lens, 23, 24: half mirror for image synthesis, 30: screen, 44 ... Lens
Filter, 44a... Condenser lens section.

Claims (1)

(57) [Claims] In a liquid crystal projector that projects a display image of a liquid crystal display panel on a screen surface, at least one image that displays an image having a predetermined pixel interval is provided.
A plurality of image display means provided with a liquid crystal display panel, and a display image of a liquid crystal display panel of the plurality of image display means.
Projected onto the screen surface, and
The image in which the projected pixels from the LCD panel are alternately arranged
Optical projection means for forming an image on the screen surface, and the liquid crystal display panel has
An optical member having an opposing condensing lens portion,
With this optical member, the width of the display pixel is compressed for each pixel.
A liquid crystal projector displaying an image having the predetermined pixel interval . 2. Each of the plurality of image display means sets a predetermined pixel interval.
Table consisting of three liquid crystal display panels for displaying the images
A display panel group, among the these display panel unit liquid crystal display panel, one
Each liquid crystal display panel of the eye displays an image of the red component
Red image display panel and the second liquid crystal display panel
Green image display panel for displaying green component image
LCD panels each display a blue component image
A blue image display panel, wherein the optical projection means comprises a liquid crystal display of each display panel group.
The display image on the panel is projected on the screen,
Red, green, and blue projected pixels from the display panel
A color image in which color pixels that overlap each other
2. An image is formed on a screen surface.
The liquid crystal projector as described.