JP2004354506A - Substrate for electro-optic device, electro-optic device, electronic equipment, method of manufacturing substrate for electro-optic device, and method of magnetic electro-optic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a display grade by reducing the illusion of the human eyes, in a display device, such as a liquid crystal panel. <P>SOLUTION: The display device, such as a liquid crystal panel, is constituted by forming aggregations 10 of pixels to a stripe form and disposing a subpixel 13B of low visual sensitivity at a green subpixel 12G existing at the end of one pixel composed of green (G), blue (B) and red (R). The illusion of the human eyes is reduced, the display device is prevented from being colored and the display grade in the liquid crystal display region is improved by disposing the pixels of the colors of the low visual sensitivity. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a substrate for an electro-optical device capable of improving display quality, an electro-optical device, an electronic apparatus, a method for manufacturing a substrate for an electro-optical device, and a method for manufacturing an electro-optical device.
[0002]
[Prior art]
Conventionally, a liquid crystal is sealed between two glass substrates on which electrodes are formed, and a color that transmits red light (R), green light (G), or blue light (B) to one of the glass substrates. There is a color liquid crystal display device provided with a filter. Various color arrangements of this color filter have been studied in the past. For example, as shown in FIG. 9, a display area of an aggregate 11 in which RGB are arranged in a stripe shape corresponding to one pixel, and FIG. As described above, there is a display area of the aggregate 11 that is arranged in a delta shape by being alternately shifted for each row of the three colors of RGB. What is important in this form of color arrangement is that the white color due to additive color mixture should be bright, vivid, and easily manufactured when all of the RGB are lit.
[0003]
In addition, large color liquid crystal display devices used for OA equipment such as word processors and personal computers have a mainstream of 640 × 480 pixels (VGA compatible) in the vertical and horizontal directions at present. The aperture ratio of a color liquid crystal display device is about 35%, and when a display device having a diagonal of 10.4 inches is used, the pitch of one pixel is 330 μm (Patent Document 1).
In such a standard product, if one pixel is composed of three colors of RGB, for example, in the case of VGA, a display area is composed of (640 × 3) subpixels × (480) subpixels. I have.
[0004]
[Patent Document 1]
JP-A-6-51301
[Problems to be solved by the invention]
By the way, in the display devices shown in FIGS. 9 and 10 described above, green (G), which is a color with high visibility, is allowed to be arranged at the end of the display area. However, various displays are performed depending on the balance of the luminance of the RGB sub-pixels, but continuity is lost in the sub-pixels at the terminals of the display area because there are no adjacent colors. As a result, despite the display of an achromatic color, the image may appear to be colored due to the illusion of human eyes, and there is a demand for an improvement in display quality.
[0006]
The present invention has been made in view of the above problems, and provides an electro-optical device substrate, an electro-optical device, an electronic device, and a method of manufacturing an electro-optical device substrate that can reduce an illusion at the end of a screen and improve display quality. Another object of the present invention is to provide a method for manufacturing an electro-optical device.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, an electro-optical device substrate according to the present invention is an electro-optical device substrate in which a plurality of pixels each including a plurality of sub-pixels are arranged to form a display region. It is characterized in that sub-pixels of a color with low visibility are arranged at the end. By arranging the sub-pixel of a color with low visibility at the end, it is possible to prevent the color from being seen by the illusion of the human eye and to improve the display quality.
[0008]
In another electro-optical device substrate, in an electro-optical device substrate in which a plurality of pixels each including a plurality of sub-pixels are arranged to form a display region, a color having low visibility may be provided at an end of the display region. Are arranged, and a color having high visibility is arranged adjacent to the color having low visibility. By arranging a sub-pixel of a color with low visibility at the end and arranging a color with high visibility next to the sub-pixel, it does not appear colored by the illusion of the human eye and improves display quality be able to.
[0009]
Another electro-optical device substrate is an electro-optical device substrate in which a plurality of sub-pixels of a plurality of colors are arranged to form a display region. In which the dummy sub-pixels are arranged. By arranging dummy sub-pixels of a color with low visibility at the end, it is possible to prevent the color from being seen due to the illusion of human eyes and to improve display quality.
[0010]
Another electro-optical device substrate is an electro-optical device in which a display region is configured by arranging a plurality of pixels each including sub-pixels of three colors of green (G), blue (B), and red (R). In the substrate for use, a sub-pixel of a color having low visibility is disposed at an end of the display area.
[0011]
Another electro-optical device substrate is an electro-optical device in which a display region is configured by arranging a plurality of pixels each including sub-pixels of three colors of green (G), blue (B), and red (R). In the substrate, a sub-pixel having a low luminosity is arranged at an end of the display area, and a high luminosity color is arranged inside the low luminosity color of the display area. Features.
[0012]
Another electro-optical device substrate is an electro-optical device in which a display region is configured by arranging a plurality of pixels each including sub-pixels of three colors of green (G), blue (B), and red (R). The substrate for use is characterized in that dummy sub-pixels of a color with low visibility are arranged at the end of the display area.
[0013]
A plurality of sub-pixels of a color having low visibility may be arranged at the end.
[0014]
Further, the color with low visibility may be blue or red.
[0015]
The dummy pixel having low visibility may be caused to emit light with the same luminance as that of an adjacent pixel.
[0016]
The arrangement of the sub-pixels may be a stripe arrangement or a delta arrangement.
[0017]
When the sub-pixel array is a stripe array, the electro-optical device substrate has a low visibility color at one or both ends in a direction orthogonal to the longitudinal direction of the stripe-shaped pixels of the same color. It is characterized in that sub-pixels are arranged in stripes.
[0018]
When the arrangement of the sub-pixels is a stripe arrangement, a green (G), blue (B), and red (R) are formed as one pixel to form a stripe arrangement, and a low visibility color is provided at a position of n × pixel + 1. The sub-pixels may be arranged in stripes.
[0019]
When the arrangement of the sub-pixels is the delta arrangement, a color having low visibility may be arranged in the sub-pixel projecting left or right or up and down.
[0020]
When the arrangement of the sub-pixels is a delta arrangement, a green (G), blue (B), and red (R) are formed as one pixel to form a delta arrangement, and a position of n × pixel + 1 or a position of n × pixel + 2 May be provided with a sub-pixel of a color with low visibility.
[0021]
When the arrangement of the sub-pixels is a stripe arrangement or a delta arrangement, sub-pixels of a color with low visibility may be arranged around the display area.
[0022]
An electro-optical device with improved display quality can be provided by including the electro-optical device substrate according to any one of the above.
[0023]
An electronic device with improved display quality can be provided by including the electro-optical device.
[0024]
The method for manufacturing an electro-optical device substrate is a method for manufacturing an electro-optical device substrate in which a plurality of pixels each including a plurality of sub-pixels are arranged to form a display region. The color sub-pixels are provided.
[0025]
Another method of manufacturing a substrate for an electro-optical device includes an electro-optical device that forms a display region by arranging a plurality of pixels each including three sub-pixels of green (G), blue (B), and red (R). In the method of manufacturing a device substrate, a sub-pixel of a color having low visibility is arranged at an end of the display area.
[0026]
By using the method for manufacturing an electro-optical device substrate, a method for manufacturing an electro-optical device with improved display quality can be provided.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the contents of the present invention will be described in detail with reference to embodiments of the present invention, but the present invention is not limited thereto.
[0028]
FIG. 1 is a schematic diagram of an electro-optical device according to the present embodiment. 2 to 6 are schematic diagrams of a pixel array according to each embodiment. FIG. 7 is a perspective view of a personal computer. FIG. 8 is a perspective view of a mobile phone.
[0029]
[First Embodiment]
First, the configuration of a liquid crystal display panel which is an electro-optical device according to the present invention will be described with reference to FIG. FIG. 1 is a schematic perspective view showing the appearance of a liquid crystal panel 200 constituting a liquid crystal device according to an embodiment of the present invention.
[0030]
In this liquid crystal device, an unillustrated illuminating device such as a backlight or a front light, a case body, and the like are appropriately attached to a liquid crystal panel 200 having a so-called reflective semi-transmissive passive matrix structure, as necessary.
[0031]
As shown in FIG. 1, the liquid crystal panel 200 includes a color filter substrate 210 having a transparent first substrate 211 made of a glass plate, a synthetic resin plate, or the like as a base, and a similar second substrate 221 facing the color filter substrate 210 as a base. And a liquid crystal 232 is injected into the inside of the sealing material 230 from the opening 230 a and then sealed with the sealing material 231. I have.
[0032]
A plurality of parallel striped transparent electrodes 216 are formed on the inner surface of the first substrate 211 (the surface facing the second substrate 221), and a plurality of parallel striped transparent electrodes 222 are formed on the inner surface of the second substrate 221. Is formed. The transparent electrode 216 is conductively connected to a wiring 218A, and the transparent electrode 222 is conductively connected to a wiring 228. The transparent electrode 216 and the transparent electrode 222 are orthogonal to each other, and their intersection regions constitute pixels composed of a large number of RGB arranged in a matrix, and these pixel arrangements constitute the liquid crystal display area A.
[0033]
The first substrate 211 has a substrate overhang portion 210T that extends outside the outer shape of the second substrate 221. On the substrate overhang portion 210T, a sealing material 230 for the wiring 218A and the wiring 228 is provided. Are formed, and an input terminal portion 219 formed of a plurality of wiring patterns formed independently and electrically connected via upper and lower conductive portions formed by a part of the wiring portion 218B is formed. A semiconductor IC 261 having a built-in liquid crystal driving circuit and the like is mounted on the substrate overhang portion 210T so as to be conductively connected to the wirings 218A and 218B and the input terminal portion 219. A flexible wiring board 263 is mounted on an end of the board extension 210T so as to be conductively connected to the input terminal 219.
[0034]
FIG. 2 shows a configuration in which a liquid crystal display area A of the liquid crystal panel 200 has a dot matrix aggregate 11 of pixels 10 in a stripe shape. Then, this aggregate forms a display area A from n × m pieces. Here, the pixel 10 is one in which green (G) blue (B) red (R) sub-pixels (sub-pixels) 12 constitute one pixel, and sub-pixels of the same color are arranged in the vertical direction of the drawing. It is striped.
Then, a sub-pixel (first sub-pixel from the left in the drawing) is disposed next to the green sub-pixel (second sub-pixel from the left in the drawing) 12G at the first end of the sub-pixel. In addition, a sub-pixel 13 of a color with low visibility is arranged as the sub-pixel. That is, a color (green) 12G having a high visibility is arranged adjacent to the sub-pixel 13 having a low visibility.
[0035]
Here, in the present invention, as the low-visibility sub-pixel, a blue (B) low-visibility sub-pixel 13B or a red (R) sub-pixel 13R other than the high-luminance green sub-pixel 12G is selected. In particular, the blue sub-pixel is preferable because the visibility is lower than that of the red sub-pixel.
[0036]
Therefore, by arranging the sub-pixels 13 of a color with low visibility as described above, it is possible to reduce the illusion of the human eye, prevent the edges from being seen colored, and improve the display quality. Can be.
[0037]
In the case of a standard product such as VGA or XGA, for example, a dummy sub-pixel having low visibility may be provided at the end. In the case of non-standard products, the display quality can be improved by arranging the sub-pixels having low visibility as described above.
[0038]
[Second embodiment]
FIG. 3 shows a liquid crystal panel 200 in which an aggregate 11 of pixels 10 is formed in a stripe shape as a liquid crystal display area A, which is different from the display area of the first embodiment. A sub-pixel 13 </ b> B having low visibility is provided around the periphery of the sub pixel 11.
[0039]
Here, in the present invention, as the low visibility sub-pixel, a blue (B) sub-pixel or a red (R) sub-pixel other than a green sub-pixel having a high luminance is selected. A blue sub-pixel 13B is provided around.
[0040]
Therefore, by arranging pixels of colors with low visibility as described above, it is possible to reduce the illusion of human eyes, prevent the edges from appearing colored, and improve display quality. .
[0041]
[Third Embodiment]
FIG. 4 shows a liquid crystal panel 200 in which an aggregate 11 of pixels 10 is formed in a delta shape as a liquid crystal display area A. Here, the pixel 10 is one in which green (G), blue (B), and red (R) sub-pixels (sub-pixels) 12G, 12B, and 12R constitute one pixel, and odd-numbered rows and even-numbered rows are alternately left and right. This assembly forms a display area of a delta arrangement by arranging n × m pieces in a brick shape.
In the present embodiment, a sub-pixel 13 with low visibility is disposed at a position (n × pixel) +2 in the horizontal direction of the drawing. Specifically, when the first sub-pixel in the odd-numbered row is green (G), one pixel 10 is formed from GBR, and thus the last of the n-th sub-pixel is red (R). In the order of GBR, arranging green (G) increases luminance, so that a blue sub-pixel 13B is arranged as a low-visibility sub-pixel. In the even-numbered row, one pixel 10 is formed from the BRG, but the right end does not protrude, so that even if the pixel ends with G having high luminance, no color can be seen.
[0042]
That is, as shown in FIG. 4, in this delta arrangement, the odd-numbered rows (first, third,... Rows) have green (G) at the left end, and the even-numbered rows (second, second, fourth,. In the figure, the left end is blue (B), but the display quality is not degraded on the left side because the even rows protrude. However, since the right end of the odd-numbered row is red (R), the display quality is lower than in the case of blue (B). Therefore, by arranging green (G), blue (B), and two sub-pixels in order next to the end of the set of n pixels, blue (B) is located at the end, Even in the case of an achromatic color, it is possible to eliminate the appearance of coloring and to improve the display quality.
[0043]
By arranging the pixels 13 of a color having low visibility as described above, it is possible to reduce the illusion of human eyes and to improve the display quality.
[0044]
[Fourth Embodiment]
FIG. 5 shows a liquid crystal panel 200 in which an aggregate 20 of pixels 10 is formed in a delta shape. In this delta arrangement, one pixel is composed of GBR, and is composed of n times one pixel, and a sub-pixel 13B with low visibility is arranged at a position of n × pixel + 1.
[0045]
That is, as shown in FIG. 5, in this delta arrangement, the odd-numbered rows (first, third,... Rows) are blue (B) at the left end, and the even-numbered rows (second, second,. Although the left end is red (R), the display quality is not degraded on the left because the odd-numbered rows protrude. However, since the right end of the even-numbered row is green (G), the display quality is degraded. Therefore, by arranging the blue (B) sub-pixel with low visibility next to the terminal sub-pixel (red) of the set array of n pixels in the odd rows, even in the case of achromatic color, The appearance of coloring is eliminated, and the display quality can be improved.
[0046]
In the case of a standard product such as VGA or XGA, for example, a dummy sub-pixel having low visibility may be provided at the position of the end +2 or the end +1. In the case of non-standard products, the display quality can be improved by arranging the sub-pixels having low visibility as described above.
[0047]
[Fifth Embodiment]
FIG. 6 shows a liquid crystal panel 200 in which an aggregate of pixels 10 is formed in a stripe shape, and one unit of which is formed by GBR has a low luminosity factor so as to be adjacent to a green pixel 11 at an end. This is one in which dummy pixels 14 are provided. Blue (B) or red (R) is selected as the low-visibility dummy pixel, and a blue pixel is particularly preferable because it has lower visibility than red.
[0048]
When the dummy pixel 14 is used, in particular, in the case of gray or white, light emission may be performed with the same luminance as that of the adjacent sub-pixel (or line).
[0049]
In addition, as shown in FIG. 6, the dummy pixels 13 are located inside the black peripheral partition 20 of the display device.
[0050]
Therefore, by arranging the dummy pixels 13 of a color with low visibility as described above, the illusion of human eyes can be reduced, and the display quality can be improved.
[0051]
The dummy sub-pixels for assisting the normal operation are arranged so as to be hidden by the peripheral partition 20. However, the dummy pixels in the present invention are disposed inside the peripheral partition 20 and the dummy sub-pixels are provided. Is made to emit light positively so as to be visible to human eyes.
[0052]
[Sixth Embodiment]
Next, specific examples of electronic devices to which the display device according to the present invention can be applied will be described with reference to FIGS.
[0053]
First, an example in which the display device according to the present invention is applied to a display unit of a portable personal computer (a so-called notebook computer) will be described. FIG. 7 is a perspective view showing the configuration of the personal computer. As shown in the figure, the personal computer 91 includes a main body 912 having a keyboard 911, and a display 913 to which the liquid crystal display device according to the present invention is applied.
[0054]
Subsequently, an example in which the display device according to the present invention is applied to a display unit of a mobile phone will be described. FIG. 8 is a perspective view showing the configuration of the mobile phone.
As shown in the figure, the mobile phone 92 includes a plurality of operation buttons 921, a receiver 922, a transmitter 923, and a display unit 924 to which the liquid crystal display device according to the invention is applied.
[0055]
Electronic devices to which the liquid crystal display panel according to the present invention can be applied include, in addition to the personal computer shown in FIG. 7 and the mobile phone shown in FIG. 8, a liquid crystal television, a viewfinder type and a monitor direct view type video. Examples include, but are not particularly limited to, tape recorders, car navigation devices, pagers, electronic organizers, calculators, word processors, workstations, videophones, POS terminals, digital still cameras, and the like.
[0056]
Further, in the above-described embodiments, the case where the present invention is applied to a liquid crystal device as an electro-optical device has been described. However, the present invention is not limited to this. , Plasma display device, FED (field emission display) device, LED (light emitting diode) display device, electrophoretic display device, small television using liquid crystal shutter, etc., device using digital micromirror device (DMD), etc. Applicable to electro-optical devices.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a liquid crystal panel according to a first embodiment.
FIG. 2 is a schematic diagram of an arrangement of pixels according to the first embodiment.
FIG. 3 is a schematic diagram of an array of pixels according to a second embodiment.
FIG. 4 is a schematic diagram of an array of pixels according to a third embodiment.
FIG. 5 is a schematic diagram of an array of pixels according to a fourth embodiment.
FIG. 6 is a schematic diagram of an array of pixels according to a fifth embodiment.
FIG. 7 is a perspective view of a personal computer.
FIG. 8 is a perspective view of a mobile phone.
FIG. 9 is a schematic view of pixels in a stripe arrangement.
FIG. 10 is a schematic diagram of pixels in a delta arrangement.
[Explanation of symbols]
Reference numeral 10: pixel, 11: aggregate of dot matrix, 12: sub-pixel (sub-pixel), 13: pixel with low visibility, 14: dummy pixel

Claims (20)

In an electro-optical device substrate configured to form a display region by arranging a plurality of one pixel consisting of a plurality of sub-pixels,
A substrate for an electro-optical device, wherein a sub-pixel of a color having low visibility is disposed at an end of the display area. In an electro-optical device substrate configured to form a display region by arranging a plurality of one pixel consisting of a plurality of sub-pixels,
At the end of the display area, sub-pixels of low visibility color are arranged,
A substrate for an electro-optical device, wherein a color having high visibility is disposed adjacent to the color having low visibility. In an electro-optical device substrate configured to form a display region by arranging a plurality of one pixel consisting of a plurality of sub-pixels,
1. A substrate for an electro-optical device, wherein dummy sub-pixels of a color having low visibility are arranged at an end of a display area. In an electro-optical device substrate, a display region is formed by arranging a plurality of pixels each including sub-pixels of three colors of green (G), blue (B), and red (R).
A substrate for an electro-optical device, wherein a sub-pixel of a color having low visibility is arranged at an end of the display area. In an electro-optical device substrate, a display region is formed by arranging a plurality of pixels each including sub-pixels of three colors of green (G), blue (B), and red (R).
At the end of the display area, sub-pixels of low visibility color are arranged,
A substrate for an electro-optical device, wherein a color having high visibility is arranged inside the color having low visibility in the display area. In an electro-optical device substrate, a display region is formed by arranging a plurality of pixels each including sub-pixels of three colors of green (G), blue (B), and red (R).
1. A substrate for an electro-optical device, wherein dummy sub-pixels of a color having low visibility are arranged at an end of a display area. The electro-optical device substrate according to any one of claims 1 to 6, wherein a plurality of the sub-pixels of the low visibility color are arranged at the end. In any one of claims 3 to 5,
A substrate for an electro-optical device, wherein the color having low visibility is blue or red. In claim 6,
A substrate for an electro-optical device, wherein the dummy pixel having low visibility is caused to emit light at the same luminance as an adjacent pixel. In any one of claims 1 to 9,
An electro-optical device substrate, wherein the arrangement of the sub-pixels is a stripe arrangement or a delta arrangement. In claim 10,
When the arrangement of sub-pixels is a stripe arrangement, low-visibility sub-pixels are arranged in stripes at one or both ends in the direction orthogonal to the longitudinal direction that constitute pixels of the same color in stripes. A substrate for an electro-optical device, comprising: In claim 10,
When the arrangement of the sub-pixels is a stripe arrangement, a green (G), blue (B), and red (R) are formed as one pixel to form a stripe arrangement, and a low visibility color is provided at a position of n × pixel + 1. A substrate for an electro-optical device, wherein sub-pixels are arranged in a stripe shape. In claim 10,
A substrate for an electro-optical device, wherein, when the sub-pixels are arranged in a delta arrangement, sub-pixels projecting either left or right or up and down are provided with low-visibility colors. In claim 10,
When the arrangement of the sub-pixels is a delta arrangement, a green (G), blue (B), and red (R) are formed as one pixel to form a delta arrangement, and a position of n × pixel + 1 or a position of n × pixel + 2 A substrate for an electro-optical device, wherein sub-pixels of a color having low visibility are disposed on the substrate. In claim 10,
An electro-optical device substrate comprising: a sub-pixel having a stripe arrangement or a delta arrangement, wherein sub-pixels of low visibility are arranged around a display area. An electro-optical device comprising the electro-optical device substrate according to claim 1. An electronic apparatus comprising the electro-optical device according to claim 16. In a method of manufacturing an electro-optical device substrate for forming a display region by arranging a plurality of pixels each including a plurality of sub-pixels,
A method of manufacturing a substrate for an electro-optical device, comprising: arranging a sub-pixel of a color having low visibility at an end of the display area. In a method of manufacturing a substrate for an electro-optical device in which a display region is formed by arranging a plurality of pixels each including sub-pixels of three colors of green (G), blue (B), and red (R),
A method of manufacturing a substrate for an electro-optical device, comprising: arranging a sub-pixel of a color having low visibility at an end of the display area. A method for manufacturing an electro-optical device, comprising using the method for manufacturing a substrate for an electro-optical device according to claim 17.

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