JPH0933710A - Production of color filter, device therefor, color liquid crystal panel using the color filter, and display device using the panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid such a problem that the whole head system enlongates or contracts and the nozzle internal of each head is deriated to cause misalignment of the position of the color to be applied on a glass for a color filter and that for example, an ink is injected on a black matrix where drops of inks are not to be applied, and thereby, the product can not be used as a color filter. SOLUTION: A glass substrate and an ink jet head are relatively moved and the ink jet head is driven synchronously with the movement to inject an ink to apply the ink on the glass substrate. The position of a black matrix is detected by CCD sensors 108a, 109a attached to the ink jet head and according to the detected position, deviation of the ink jet head from the relative position to the glass substrate is detected. To compensate the deviation thus detected, the ink jet head is relatively rotated or moved to the glass substrate to correct the deviation of the ink injection position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for manufacturing a color filter for a color liquid crystal display used in, for example, a color television, a personal computer, etc., a color liquid crystal panel using the color filter, and the same. The present invention relates to a display device.

[0002]

2. Description of the Related Art It has been proposed to manufacture a color filter used in a color liquid crystal drawing apparatus by using an ink jet method. This example is shown in FIG. In FIG. 15, a color filter glass 1 provided with a black matrix 2 (hereinafter abbreviated as BM) in advance is adsorbed on a stage (not shown) movable in the xyθ directions. The stage is equipped with a position sensor (not shown) for detecting the position in the xy direction, which performs positioning control in the y direction, scan control in the x direction at a certain speed, and θ direction. Are aligned so that the scanning direction (x direction) of the stage and the running direction (x direction) of the BM 2 coincide with each other. Also, each R (red), G (green), B (blue)
(Hereinafter referred to as RGB) inkjet head 3a
Each of 3 to 3c has a plurality of nozzles for ejecting ink droplets (not shown).

The color filter is usually a portion to which ink droplets of RGB colors are attached and a portion other than the BM.
Inkjet head 3a-
The intervals of the discharge nozzles in each of 3c are RGB
This corresponds to the length corresponding to the interval h in the y direction of each color. In this state, move the stage in the x direction,
Each time a corresponding portion of the glass 1 comes to the ejection target position, the heads 3a to 3c are driven (for example, by energizing and heating a heater (heating element) provided in the nozzle to generate ink inside the ink). A bubble is generated and ink is ejected by using the force of the bubble generation, or a nozzle is deformed by applying a voltage to the piezo, and the deformation force is used to eject an ink droplet. Method) Eject ink. Further, when the drawing area in the y direction of the color filter glass 1 is larger than the length in the y direction of the inkjet heads 3a to 3c, after the scan driving in the x direction is finished,
After moving the stage in the y direction by the length of the heads 3a to 3c, this time the stage is in the opposite direction (-x direction) from the previous time.
Move to and draw. By repeating this operation, a desired color filter can be manufactured.

FIG. 16 is a side view seen from the yz plane of FIG. 15, and shows a schematic view when ink droplets are ejected from the ink jet head 3a onto the color filter glass 1.

[0005]

In the above-mentioned conventional example, in order to eject ink droplets, a heater provided in the nozzle is energized to generate heat or a voltage is applied to the piezo. There is. For this reason, when the heads 3a to 3c are continuously driven for a long time, the inkjet head 3 is driven by the electric power consumed for driving the heater and the piezo.
The heat is transmitted to the entire a to 3c. As a result, the entire head expands and contracts, and the nozzle interval of each head, which is provided corresponding to the distance h at which each color of the color filter is arranged, shifts. Due to the deviation of the nozzle spacing, the color position applied to the color filter glass 1 is displaced, and, for example, the ink is ejected onto the BM 2 to which the ink droplets are not applied, so that the color filter cannot be used as a color filter. was there.

The present invention has been made in view of the above conventional example, and provides a method and apparatus for manufacturing a color filter in which ink is applied at regular intervals by correcting the positional deviation between the nozzles of the head. With the goal.

Another object of the present invention is to provide a method of manufacturing a color filter and an apparatus therefor, which can eliminate the influence of expansion and contraction of an ink jet head and can accurately apply a color ink to a predetermined position.

Another object of the present invention is to provide a method and apparatus for manufacturing a color filter which can detect the degree of expansion and contraction of an ink jet head and correct the ink application position.

[0009]

In order to achieve the above object, a color filter manufacturing apparatus of the present invention has the following configuration. That is, a color filter manufacturing apparatus that manufactures a color filter by ejecting ink from an inkjet head to a predetermined position on a base, and moving means for relatively moving the base and the inkjet head, An applying unit that drives the inkjet head in synchronization with the movement by the moving unit to eject the ink to apply the ink, a detecting unit that detects a deviation amount of a relative position of the inkjet head with respect to the base, and the detecting unit. And a rotating means for rotating the inkjet head relative to the base body in order to correct the amount of deviation detected by.

In order to achieve the above object, the method for manufacturing a color filter of the present invention includes the following steps. That is, a color filter manufacturing method for manufacturing a color filter by ejecting ink from an inkjet head to a predetermined position on a substrate, the method comprising: relatively moving the substrate and the inkjet head; Driving the ink jet head to eject the ink in synchronism with the above, applying the ink, detecting a deviation amount of the relative position of the ink jet head with respect to the substrate, and correcting the detected deviation amount. To this end, there is a rotating step of rotating the inkjet head relative to the base body.

[0011]

Embodiments of the present invention will be described below.

In the above structure, preferably, the detection means has at least two sensors for reading a black matrix provided on the base, and the deviation is based on the black matrix position detected by the sensor. Detect the amount. This makes it possible to detect the positional deviation of the inkjet head in the longitudinal direction.

More preferably, the substrate is a glass substrate.

Further, preferably, the rotating means rotates the ink jet head extended by the displacement amount in parallel with the base body and with the substantially center of the ink jet head as a center of rotation, thereby the base body. Apparently shortening the ink jet head length in the predetermined direction. Thereby, even when the length of the inkjet head is extended, the length in the predetermined direction with respect to the substrate can be kept constant.

Further preferably, it further comprises control means for controlling the relative movement amount by the moving means in accordance with the relative rotation of the ink jet head and the base body by the rotating means. As a result, ink can be applied to a correct position on the base even when the head is rotated.

More preferably, the ink jet head ejects ink of a predetermined color in a region surrounded by the black matrix. This improves the tint of the displayed image.

Further, preferably, the ink jet head ejects inks of RGB colors.

More preferably, the ink jet head is a head for ejecting ink by utilizing heat energy, and is provided with a heat energy converter for generating heat energy applied to the ink.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a side view seen from the yz plane of FIG.

In FIG. 1, 101 is a glass substrate for a color filter, 102 is a black matrix (BM), 1
03a to 103c are inkjet heads for ejecting ink droplets of different colors, 103a is for R (red), 1
Reference numeral 03b is a head for G (green), and 103c is a head for B (blue), which ejects ink droplets onto the glass substrate 101 for color filters. 104a to 104c, 105a to 10
In order to read the state of the color filter glass 101, each of the light guide lines 106a to 106c,
It is a holding member for holding the ends of 7a to 107c (only 106a and 107a are shown in FIG. 2).

Further, in FIG. 2, 106a to 106c,
107a to 107c (106b, c and 10
7b and 7c are not shown) are light guide lines such as an optical fiber, and images of the color filter glass substrate 101 are displayed by the corresponding sensors 108a to 108c and 109a to 109c.
I am sending it to. For example, the sensors 108a and 109a are
In this way, the image (color on the substrate) sent through the light guide lines 106a and 107a is read, and the sensors 108b and 1
09b is an image sent through the light guide lines 106b and 107b, and sensors 108c and 109c are the light guide lines 1
The images sent through 06c and 107c are read.

FIG. 3 is a diagram showing the color arrangement of the color filter manufactured according to the present embodiment, in which the color portion is arranged in the order of R, G, B in the y direction with one row across the black matrix (BM). Are formed, the intervals between the R column and the next R column, the intervals between the G column and the next G column, and the intervals between the B column and the next B column are all “h”. Is set to.

FIG. 4 is a diagram showing an example of the waveform of an image signal when read by the sensor 108a, for example, along the line on the color filter glass substrate 101 indicated by DD 'in FIG. Even in the state where the inks of the respective colors are not applied in this way, the signal level of the area to which the inks are applied is higher than the image signal level of the BM portion.
By detecting the signals from the sensors 108a and 109a based on a predetermined level indicated by "E", it is possible to determine whether or not the reading position by these sensors is on the line A of the BM.

Next, with reference to FIG. 5, a structure for making the ejection interval of the ink jet heads 103a to 103c in the present embodiment constant in the y direction will be described.

FIG. 5 is a functional block diagram showing the functional structure of the color filter manufacturing apparatus of this embodiment.

Reference numeral 108a designates a glass 10 for a color filter.
With a sensor such as a CCD for reading the state of 1, the line A on the BM in the scanning direction (x direction) of FIG.
It is arranged so that the surrounding conditions can be read. The image information obtained there is analyzed by the image processing unit 110.
For example, if the image signal obtained from the CCD sensor 108a is a signal as shown in FIG. 4 when viewed between DD ′ in FIG. 3, the signal level at the portion where the R color ink is applied is one. The signal level is highest in the area where the G color ink is applied next, and the signal level in the area where the B color ink is applied next, and the signal level in the black matrix (BM) area. Is the lowest. Incidentally, "A" in FIG. 4 corresponds to the position of the line A in FIG. Note that, as described above, the signal level corresponding to the portion where the ink is not applied is higher than the signal level corresponding to each of these colors.

As a result, the signal level obtained from the sensor 108a is compared with a predetermined level "E", and the level is lower than this level "E", and the BM of the line A is always at the center of the image captured by the sensor 108a. As described above, first, the sensor 108a is aligned.

The ink jet heads 103a ...
If any of the heads 103a to 103c expands or contracts due to heat while the color filter is manufactured by 103c, that is, while ink droplets are being ejected and ink is applied, B
The detection position of the line A of M is displaced from the position initially set at the center of the captured image of the sensor 108a. Therefore, the deviation amount Δk1 in that case is calculated by the sensor 108.
It is obtained based on the signal obtained by a. Further, the shift amount Δk2 is obtained from the image signal from the sensor 109a in the same manner as the sensor 108a. Note that these deviation amounts Δk1,
Δk2 is a position where the timing at which the signal level becomes higher than the threshold level “E” is initially set with respect to the center of the image signal from each sensor in the vicinity of the center of the signal from each of the sensors 108a and 109a. It can be determined by the amount moved.

The rotational position correction circuit 111 includes the image processing unit 1
Based on the deviation amounts Δk1 and Δk2 calculated by 10, the rotation amount θ of the inkjet head of each color and the accompanying movement amount in the xy direction are calculated. By passing the values of xyθ to the mechanical machine drive circuit 112, θ is the θ rotation amount of each head, and y is the movement amount of the stage y.
Further, x is output as an amount for position correction of the ejection timing of each head. By passing each of these values to the stage drive unit 113, the head θ drive unit 114, and the head ejection timing control unit 115, each unit is driven and the ink ejection interval is always constant. These processes are performed for each RGB head. CPU1
Reference numeral 20 controls the above-mentioned respective parts to control the entire manufacturing apparatus of the color filter of the present embodiment. A program memory 121 stores a control program executed by the CPU 120 shown in the flowchart of FIG. 6, for example.

In the processing shown in FIG. 6, for example, the read position by the sensors 108a, 108b, 108c corresponding to the heads of respective colors is B.
Started after being adjusted to be on line A of M,
First, in step S1, a signal from each CCD sensor is input and the above-mentioned predetermined signal level "E" is determined. Next, in step S2, the stage drive unit 113 is driven via the mechanical mechanism drive unit 112 to move the color filter glass substrate 101 to the coating position by the head. When the glass substrate 101 is moved to the predetermined position in this way, the process proceeds to step S3, the head of the corresponding color is driven, and ink is applied to the corresponding position. Next, in step S4,
Sensors 108a to 108c, 109 corresponding to each head
The signals from a to 109c are input, and the deviation amount from the initially set reading position by these sensors is obtained (S
5). It should be noted that this shift amount is obtained for each head.

It is determined whether the deviation amount thus obtained is equal to or larger than a predetermined amount, that is, whether the deviation amount is a degree that can cause the color deviation of the color filter. Otherwise, step S
In step 10, it is checked whether or not one scan is completed. If it is not completed, the process returns to step S2 and the same process as described above is performed. If one scan is completed, the process proceeds to step S11 to determine whether all processes are completed. If not, the process proceeds to step S12, the direction of the stage is changed to the opposite direction, the heads 103a, 103b, 103c are moved in the y direction by the print width of the head, and the process proceeds to step S2. Return.

On the other hand, in step S6, when the deviation amount is equal to or larger than the predetermined amount, the process proceeds from step S6 to step S7, the rotation angle of the head is obtained from the deviation amount, and the stage in the x direction accompanying the rotation of the head is further obtained. And the amount of movement of the head in the y direction.

This is, for example, the ink jet head 10.
In the case of 3a, the distance between both ends of the head 103a (distance between 104a and 105a) is “h”, and the shift amount obtained by the sensors 108a and 109a is Δk1,
Δk2 (Δk1 and Δk2 are usually positive values). As a result, the actual print width of the inkjet head 103a is
That is, the length in the y direction is (h + Δk1 + Δk2). In this state, the length in the y direction must be equal to the original length “h” in order to match the position of the originally determined color region.

Therefore, as shown in FIG. 7, in order to rotate the head by the angle θ and set the length in the y-axis direction to “h”, θ = cos−1 (h / (h + Δk1 + Δk2)) Become. Also, the x direction (scan direction) accompanying this rotation
The deviation amount (Δx) of is expressed by Δx = (h + Δk1 + Δk2) sin θ. Further, in this case, the deviation in the y direction need not be considered if the center of rotation of the head is the center of the head.

FIG. 8 is a diagram showing an example of a head rotating mechanism in the present embodiment.

Here, the ink jet head 103a
One end 800 side may be fixed and the other end 801 may be driven by the piezo 117 or the like to rotate the head 103a. Reference numeral 116 is a mounting jig for fixing the head 103a.

In the above embodiment, the image processing unit 110 uses the image signal obtained by reading the BM portion as the reference signal for determining the deviation amount. However, the image signal of the R color portion or the G signal is used. The positional deviation may be obtained using the image signal of the color portion or the image signal of the B color portion as a reference.
However, in this case, the sensors 108a, 108b, 108
The reading positions of c and 109a, 109b, and 109c need to be provided at the positions where the position where ink is applied is read. In addition, in this embodiment, as the mechanism for rotating each head in the θ direction, the head may be rotated by utilizing rotation drive of a pulse motor or the like other than FIG.

In the above-described embodiment, the ink jet head is rotated or moved by scanning, but the present invention is not limited to this. For example, the ink jet head is fixed and the stage is moved. Or you may make it rotate.

FIG. 9 shows an ink jet head (103a to 103) for spraying ink onto the dyed layer 14 (see FIGS. 10 and 11) in the color filter described above.
FIG. 2 is a diagram showing the structure of FIG.
The case of a will be described, but the configuration of the other heads is basically the same.

In FIG. 9, the ink jet head 10 is shown.
The reference numeral 3a includes a heater board 904 which is a substrate on which a plurality of heaters 902 for heating ink are formed, and a top plate 906 which is placed on the heater board 904. The top plate 906 has a plurality of discharge ports 90.
8 is formed, and behind the discharge port 908, a tunnel-shaped liquid passage 910 communicating with the discharge port 908 is formed. Each liquid passage 910 is isolated from an adjacent liquid passage by a partition wall 912. Each liquid passage 910 is commonly connected to one ink liquid chamber 914 behind it, and ink is supplied to the ink liquid chamber 914 through an ink supply port 916. This ink is supplied from the ink liquid chamber 914. It is supplied to each liquid passage 910.

The heater board 904 and the top plate 906 are
The heaters 902 are positioned so as to come to the positions corresponding to the respective liquid passages 910, and the state as shown in FIG. 9 is assembled.
Although only two heaters 902 are shown in FIG. 9, the heaters 902 are not shown in correspondence with the respective liquid passages 910.
Are arranged one by one. Then, when a predetermined drive pulse is supplied to the heater 902 in the assembled state as shown in the figure, the ink on the heater 902 boils and forms bubbles,
The volume expansion of the bubbles causes the ink to be ejected from the ejection port 908. Therefore, the size of the bubble can be adjusted by controlling the drive pulse applied to the heater 902, for example, controlling the magnitude of the electric power, and the volume of the ink ejected from the ejection port can be freely controlled. it can.

10 and 11 are cross-sectional views showing the structure of the color liquid crystal panel manufactured according to this embodiment.

The color liquid crystal panel thus created is
Generally, it is formed by combining the color filter glass substrate 101 and the glass substrate 54 and enclosing the liquid crystal compound 52. TFTs (Thin Film Transistor) (not shown) and transparent pixel electrodes 53 are formed in a matrix inside one glass substrate 54 of the liquid crystal panel. Also,
Inside the other glass substrate 101, a color filter 10 is installed such that RGB color materials are arranged at positions facing the pixel electrodes, and a transparent counter electrode (common electrode) 50 is formed on one surface of the color filter 10. It The light-shielding grid 10b is usually formed on the glass substrate 101 side of the color filter, but in the BM (black matrix) on-array type liquid crystal panel, it is formed on the opposing TFT substrate side (see FIG. 11). Furthermore, an alignment film 51 is formed on the surfaces of both substrates.
Are formed, and the liquid crystal molecules can be aligned in a certain direction by rubbing this. Also,
A polarizing plate 55 is bonded to the outside of each glass substrate, and the liquid crystal compound 52 is
The gap 101 (about 2 to 5 μm) is filled. Also,
As a backlight, a combination of a fluorescent lamp (not shown) and a scattering plate (not shown) is generally used, and display is performed by causing a liquid crystal compound to function as an optical shutter that changes the transmittance of the backlight light. . The means for making the backlight light transmissive is not limited to the above-mentioned liquid crystal compound, and other means may be used.

An example in which such a liquid crystal panel is applied to an information processing apparatus will be described with reference to FIGS.

FIG. 12 is a block diagram showing a schematic configuration when the above liquid crystal panel is applied to an information processing apparatus having a function as a word processor, a personal computer, a facsimile apparatus, a copying apparatus.

In the figure, reference numeral 1801 denotes a control unit for controlling the entire apparatus, which includes a CPU such as a microprocessor and various I / Os.
It has a port and outputs control signals, data signals, etc. to each section, and controls by inputting control signals and data signals from each section. A display unit 1802 displays various menus, document information, image data read by the image reader 1807, and the like on the display screen. Reference numeral 1803 denotes a transparent pressure-sensitive touch panel provided on the display unit 1802. By pressing the surface of the touch panel with a finger or the like, it is possible to input items, coordinate positions, and the like on the display unit 1802.

Reference numeral 1804 denotes an FM (frequency modulation) sound source section for storing music information created by a music editor or the like in the memory section 1810.
The external storage device 1812 stores the data as digital data, and the data is read from the memory or the like to perform FM modulation. The electric signal from the FM sound source unit 1804 is converted into an audible sound by the speaker unit 1805. The printer unit 1806 is used as an output terminal of a word processor, a personal computer, a facsimile machine, and a copying machine.

Reference numeral 1807 denotes an image reader unit for photoelectrically reading and inputting original data, which is provided in the original feeding path and reads various originals such as facsimile originals and copy originals.

Reference numeral 1808 designates a facsimile (F) which transmits the original data read by the image reader unit 1807 by facsimile and which receives and decodes the transmitted facsimile signal.
AX) transmitting / receiving unit, and has an interface function with the outside. Reference numeral 1809 denotes a telephone unit having various telephone functions such as a normal telephone function and an answering machine function.

Reference numeral 1810 denotes a ROM for storing a system program, a manager program, other application programs, etc., a character font, a dictionary, etc.
A memory unit including an application program and document information loaded from the external storage device 1812, and a video RAM and the like.

Reference numeral 1811 denotes a keyboard unit for inputting document information and various commands.

Reference numeral 1812 denotes an external storage device having a floppy disk, a hard disk or the like as a storage medium. The external storage device 1812 stores document information, music or voice information, user application programs and the like.

FIG. 13 is a schematic view of the information processing apparatus shown in FIG.

In the figure, reference numeral 1901 denotes a flat panel display using the above liquid crystal panel, which displays various menus, graphic information, document information and the like. By pressing the surface of the touch panel 1803 on the display 1901 with a finger or the like, coordinate input and item designation input can be performed. 1902 is a handset used when the device functions as a telephone. Keyboard 19
Reference numeral 03 is detachably connected to the main body via a cord, and can perform various document functions and various data inputs. The keyboard 1903 has various function keys 1
904 etc. are provided. 1905 is the external storage device 1
812 is a floppy disk insertion port.

Reference numeral 1906 denotes a paper stacking unit on which a document read by the image reader unit 1807 is placed, and the read document is discharged from the rear of the apparatus. In the case of facsimile reception or the like, printing is performed by the inkjet printer 1907.

When the information processing apparatus functions as a personal computer or a word processor, various information input from the keyboard unit 1811 is processed by the control unit 1801 according to a predetermined program, and the printer unit 1
The image is output to an image 806.

When functioning as a receiver of a facsimile apparatus, the facsimile information input from the FAX transmission / reception unit 1808 via the communication line is received and processed by the control unit 1801 according to a predetermined program, and the printer unit 1806.
Is output as a received image.

When functioning as a copying machine, the image reader unit 1807 reads an original document, and the read original data is transferred to the printer unit 18 via the control unit 1801.
It is output as a copied image in 06. When functioning as a facsimile receiver, the image reader unit 1
The original data read by 807 is transmitted to control unit 180.
After transmission processing according to a predetermined program by 1
It is transmitted to the communication line via the FAX transmission / reception unit 1808.

The information processing apparatus described above may be an integrated type in which an ink jet printer is built in the main body as shown in FIG. 14, and in this case, it becomes possible to further enhance the portability. In the figure, parts having the same functions as in FIG. 13 are assigned the same numbers and their explanations are omitted.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. The present invention can also be applied to the case where it is achieved by supplying a program for implementing the present invention to a system or an apparatus. In this case, the storage medium storing the program according to the present invention constitutes the present invention. Then, by reading the program from the storage medium to the system or device, the system or device operates according to the program.

As described above, according to the present embodiment, the reading section by the sensor for measuring the extension of the head is provided at both ends of the head, and the degree of expansion and contraction of the head can be obtained based on the signal from the sensor. it can.

Further, in order to correct the ink ejection position by the nozzle according to the degree of expansion and contraction, the rotation direction of rotating the head position, the position of the stage on which the color filter glass is mounted, and the ink ejection timing position are set. Calculate the correction value. Then, by rotating the head according to the obtained value and changing the amount of movement of the stage and the ink ejection timing, the deviation of the nozzle interval due to heating of the head is corrected, and ink is ejected at a constant interval. Can be applied.

As a result, the effect of heat generation of the ink jet head can be eliminated and the ink can be accurately applied onto the glass substrate of the color filter.

[0065]

As described above, according to the present invention, it is possible to correct the positional deviation between the nozzles of the head and apply the ink at regular intervals.

Further, according to the present invention, there is an effect that the influence of expansion and contraction of the ink jet head can be eliminated and the color ink can be applied to a predetermined position with high accuracy.

Further, according to the present invention, there is an effect that the degree of expansion and contraction of the ink jet head can be detected and the ink application position can be corrected.

[0068]

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a color filter manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a side view showing a positional relationship in the yz directions between the inkjet head and the glass substrate of the present embodiment.

FIG. 3 is an enlarged view of a color filter according to the present embodiment.

FIG. 4 is a diagram showing an example of an output signal waveform of a CCD sensor for detecting a nozzle position of a head.

FIG. 5 is a block diagram showing a configuration of a color filter manufacturing apparatus according to the present embodiment.

FIG. 6 is a flowchart showing a process in the color filter manufacturing apparatus according to the present embodiment.

FIG. 7 is a diagram showing the principle of adjusting the head position by rotating the head.

FIG. 8 is a diagram showing an example of a mechanism for rotating the position of the head in the present embodiment.

FIG. 9 is a perspective view showing the configuration of an inkjet head used in the present embodiment with a part thereof cut away.

FIG. 10 is a cross-sectional view showing the structure of the color liquid crystal panel of the present embodiment.

FIG. 11 is a cross-sectional view showing a structure of a color liquid crystal panel of another embodiment.

FIG. 12 is a block diagram showing a configuration of an information processing device using the color liquid crystal panel of the present embodiment.

FIG. 13 is a schematic perspective view of a word processor using the color liquid crystal panel of the present embodiment.

FIG. 14 is a schematic perspective view of a word processor using a color liquid crystal panel of another embodiment.

FIG. 15 is a perspective view showing a configuration of a conventional color filter manufacturing apparatus.

FIG. 16 is a schematic view showing a manufacturing process of a conventional color filter.

[Explanation of symbols]

101 Color Filter Glass Substrate 103a, 103b, 103c Inkjet Head 106a, 106b, 106c Light Guide Line (Optical Fiber) 108a, 108b, 108c, 109a, 109b,
109c sensor 110 image processing unit 111 rotational position correction circuit 112 mechanical mechanism drive circuit 113 stage drive unit 114 head θ drive unit 115 head ejection timing control unit 117 piezo 120 CPU 121 program memory

Claims (18)

[Claims] 1. A color filter manufacturing apparatus for manufacturing a color filter by ejecting ink from an inkjet head to a predetermined position on a substrate, and moving means for relatively moving the substrate and the inkjet head. An applying unit that drives the inkjet head to eject the ink and apply the ink in synchronization with the movement of the moving unit; and a detecting unit that detects a deviation amount of a relative position of the inkjet head with respect to the substrate. And a rotating means for rotating the inkjet head relative to the base body to correct the amount of deviation detected by the detecting means. 2. The detecting means has at least two sensors for reading a black matrix provided on the base, and detects a deviation amount based on a black matrix position detected by the sensor. The manufacturing apparatus of the color filter according to claim 1. 3. The control means for controlling the relative movement amount of the moving means in accordance with the relative rotation of the inkjet head and the base body by the rotating means. The manufacturing apparatus of the described color filter. 4. The color filter manufacturing apparatus according to claim 1, wherein the substrate is a glass substrate. 5. The predetermined rotation of the substrate by rotating the inkjet head extended by the displacement amount in parallel with the substrate and with a substantially center of the inkjet head as a rotation center. 2. The color filter manufacturing apparatus according to claim 1, wherein the length of the inkjet head with respect to the direction is apparently shortened. 6. The color filter manufacturing apparatus according to claim 1, wherein the ink jet head ejects ink of a predetermined color into a region surrounded by the black matrix. 7. The color filter manufacturing apparatus according to claim 1, wherein the ink jet head ejects inks of RGB colors. 8. The ink jet head is a head for ejecting ink by utilizing heat energy, and is provided with a heat energy generator for generating heat energy applied to the ink. Item 2. The color filter manufacturing apparatus according to Item 1. 9. A color filter manufacturing method for manufacturing a color filter by ejecting ink from an inkjet head to a predetermined position on a substrate, the method comprising: relatively moving the substrate and the inkjet head. A step of driving the inkjet head in synchronization with the movement to eject ink to apply the ink, a step of detecting a deviation amount of a relative position of the inkjet head with respect to the substrate, and a detected deviation amount A step of rotating the inkjet head relative to the base body to correct the above. 10. The detecting step, wherein the black matrix provided on the base is read by two sensors, and the shift amount is detected based on the black matrix position read by the sensors.
3. The method for producing a color filter according to item 1. 11. The method of manufacturing a color filter according to claim 9, wherein the substrate is a glass substrate. 12. In the rotating step, the ink jet head extended by the displacement amount is parallel to the base body,
The color filter according to claim 9, wherein the ink jet head length in the predetermined direction of the substrate is apparently shortened by rotating the ink jet head with a substantially center of the ink jet head as a rotation center. Method. 13. The method further comprising the step of controlling a relative movement amount of the substrate and the inkjet head in accordance with relative rotation of the inkjet head and the substrate in the rotating step. 9. The method for manufacturing a color filter according to item 9. 14. The method of manufacturing a color filter according to claim 9, wherein the ink jet head ejects ink of a predetermined color in a region surrounded by the black matrix. 15. A color filter in which a large number of color elements are partitioned by a black matrix, wherein a substrate and an inkjet head are relatively moved, and the inkjet head is driven in synchronization with the relative movement to eject ink. Then, the ink corresponding to the area partitioned by the black matrix is applied, and the deviation amount of the relative position of the inkjet head with respect to the substrate is detected based on the detection position of the black matrix, and the detected deviation amount. A color filter manufactured by rotating the inkjet head relative to the substrate to correct the above. 16. The color filter according to claim 15, wherein the base body is a glass substrate. 17. A display device using a color filter in which a large number of color elements are partitioned by a black matrix, wherein a substrate and an inkjet head are relatively moved, and the inkjet head is driven in synchronization with the relative movement. Then, the ink is ejected to apply the ink corresponding to the area partitioned by the black matrix, and the displacement amount of the relative position of the inkjet head with respect to the substrate is detected based on the detection position of the black matrix, A color filter manufactured by rotating the inkjet head relative to the substrate to correct the detected shift amount; and means for varying the light amount integrally with the color filter. A display device characterized by. 18. A device comprising: the display device according to claim 17; and a signal supply means for supplying an image signal to the display device.