JP2004241199A - Display device mounted on recording device, recording device, and control method of recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device having a wide angle of field in a display device mounted on a recording device. <P>SOLUTION: The printer 1 is a stand-alone type that can print an image data (still image or moving image) read from a memory card 14 without connecting to the host computer. The printer 1 is mounted with a readout device 15 having a card slot 16 for inserting the memory card 14. An operating panel 3 comprises a liquid crystal display 11 and an operating part 12. The liquid crystal display 11 is a monochromatic liquid crystal and displays a menu screen in monochrome. In the menu screen, the change of color tone or color balance of the image data can be set. An organic EL display 17 is provided at the printer 1 main body 2 as a display device. An image read from the memory card 14 is displayed as a preview on the display panel part 18 of the organic EL display 17. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display device mounted on a recording device, a recording device mounted with the display device, and a control method of the recording device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a so-called stand-alone printer capable of directly reading image data from a memory card and performing print processing without passing through a personal computer has been known. This stand-alone printer is generally used for printing images taken by a digital camera or the like.In this case, a memory card provided in the digital camera is inserted into a card slot of the printer, and the number of images and the number of prints are printed on an operation panel. A print process is executed by designating (Patent Document 1).
[0003]
[Patent Document 1]
JP-A-10-126724
[0004]
[Problems to be solved by the invention]
Incidentally, some stand-alone printers are equipped with a color liquid crystal display for displaying images. The image set by the user on the operation panel is displayed on the liquid crystal display as a preview screen, and the user can check the image before printing without viewing a personal computer by looking at the monitor.
[0005]
However, since such a color liquid crystal display has a narrow viewing angle of about 60 °, the user must look at the monitor within a limited angle range. Therefore, the user has to operate the printer at a limited position, which is inconvenient.
[0006]
In a liquid crystal display, a high voltage is required for applying a voltage to the liquid crystal and driving a backlight. In the stand-alone printer, a booster circuit that generates output voltages of, for example, +32 V and −32 V is required to drive a pixel driving circuit for liquid crystal. Therefore, the provision of such a booster circuit tends to increase the size of a stand-alone printer, and has a problem that the circuit configuration is complicated.
[0007]
Further, it has been difficult to change the color tone of the liquid crystal display used in the stand-alone printer. That is, since the liquid crystal display is driven by an alternating current, when the color tone of the display screen is changed, an adjustment mechanism for changing the output voltage of the power supply for each of the RGB colors must be provided. There was a problem of becoming.
[0008]
SUMMARY An advantage of some aspects of the invention is to provide a display device having a wider viewing angle in a display device mounted on a recording device. Another object of the present invention is to provide a display device mounted on a recording device having a simple circuit configuration. It is another object of the present invention to provide a display device mounted on a recording device capable of changing a color tone of a display screen with a simple power supply configuration.
[0009]
[Means for Solving the Problems]
The display device mounted on the recording device according to the present invention is configured by an organic EL display.
[0010]
According to this, a display device having a wider viewing angle can be obtained. Further, there is no need to provide a booster circuit for boosting the voltage to a high voltage to drive the organic EL, and a display device with a simple circuit configuration can be obtained.
[0011]
In the recording device according to the present invention, the display device mounted on the recording device is constituted by an organic EL display.
According to this, a recording device equipped with a display device having a wider viewing angle is obtained. Further, there is no need to provide a booster circuit for boosting the voltage to a high voltage to drive the organic EL, and a recording device with a simple circuit configuration can be obtained.
[0012]
The recording device according to the present invention displays an image to be printed on the display device, and executes printing of the displayed image.
According to this, the image to be printed can be displayed on the display device, and the image can be printed. For this reason, printing can be performed while confirming the image data on the display device mounted on the recording device.
[0013]
The recording apparatus according to the present invention includes: an operation unit configured to change a gradation or a color balance of an image displayed on the display device; and an image storage unit configured to store an image in which the gradation or the color balance of the image is changed. Display means for displaying the changed image stored in the image storage means on the display device, and the changed image can be printed.
[0014]
According to this, the gradation value or the color balance value of the image can be changed by the operation means, and the image whose gradation value has been changed is stored in the image storage means. Then, the image after the change is displayed on the display device by the display means. In particular, since the display device is constituted by an organic EL display, when the color tone of the display screen is changed, it is not necessary to provide a special adjustment mechanism for changing the output voltage of the power supply, and the display device has a simple power supply configuration. Is obtained.
[0015]
In the recording device according to the aspect of the invention, the image is a still image or a moving image.
According to this, a still image or a moving image can be displayed on the display device. In particular, since the response of the organic EL element is high, the display speed of an image is high, and a high-quality moving image can be displayed.
[0016]
The recording device according to the present invention captures an image at one point in time of a moving image and stores it as a still image, a still image display unit that displays the still image on the display device, and executes printing of the still image Printing execution means.
[0017]
According to this, the moving image displayed on the display device is captured and stored as a still image, and the still image is displayed on the display device by the still image display means. Then, the still image is printed by the print execution unit. Therefore, while displaying the moving image on the display device, it is possible to capture and print the image of the moving image at a desired point in time at which printing is desired.
[0018]
The recording apparatus according to the present invention further includes a data reading unit that reads data corresponding to an image from a storage medium.
According to this, the image is read from the storage medium by the data reading means corresponding to the image. The read image is displayed on the display device. Therefore, the image read by the data reading means corresponding to the image can be directly displayed on the display device and printed.
[0019]
In the recording device according to the present invention, the recording device is an ink jet printer.
According to this, in the ink jet printer, any of the above-described effects of the present invention can be obtained.
[0020]
In the recording device according to the present invention, the recording device is a laser printer.
According to this, in the laser printer, any of the above-described functions and effects of the present invention can be obtained.
[0021]
A control method of a printing apparatus according to the present invention is a method of controlling a printing apparatus in which a display device mounted on the printing device is configured by an organic EL display, and controls a gradation value or a color balance of an image displayed on the display device. Changing, storing the image whose gradation or color balance has been changed in an image storage unit of the recording device, and displaying the changed image stored in the image storage unit on the display device. And
[0022]
According to this, the gradation value or color balance value of the image can be changed, and the image whose gradation or color balance has been changed is stored in the image storage means. Then, the image after the change is displayed on the display device by the display means. In particular, since the display device is constituted by an organic EL display, it is not necessary to provide a special adjustment mechanism for changing the output voltage of the power supply when changing the color tone of the display screen. Is obtained.
[0023]
The control method of the recording device according to the present invention further includes a step of executing printing of the image displayed on the display device.
According to this, it is possible to execute printing of an image whose gradation value or color balance value has been changed.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a printer embodying the present invention will be described with reference to FIGS.
[0025]
FIG. 1 is a perspective view of the printer 1. The printer 1 as a recording device is an ink jet printer, and includes an operation panel 3 as operation means on the upper right side of the main body 2. On the back side of the main body 2, a sheet feeder 5 and a roll paper support unit 6 of the automatic paper feeder 4 are provided, and cut paper set on the sheet feeder 5 or roll paper set on the roll paper support unit 6 is provided. Paper is fed inside the main body 2. Below the cover 7 provided in the center of the main body 2, a printing mechanism as a printing execution means is mounted, and the paper 8 printed by the operation of the printing mechanism is discharged from a paper output port 9 at the lower front side of the main body 2. Is done.
[0026]
The operation panel 3 includes a liquid crystal display 11 and an operation unit 12 including a plurality of operation switches (operation keys). The liquid crystal display 11 is a monochrome liquid crystal, and displays a menu screen (not shown) in monochrome. The menu screen allows the user to manually select, for example, paper type (cut sheet or roll paper), paper size (A4 or the like), layout, image data selection, number of prints, image data gradation value correction, and the like. Is displayed. The operation unit 12 is provided with a power switch 13a for turning on the power to the printer 1, a maintenance switch 13b pressed when an error occurs, and a roll paper switch 13c pressed when operating the roll paper. I have. When the power switch 13a is pressed, the power circuit 50 (see FIG. 4) of the printer 1 is driven, and the power of the printer 1 is turned on.
[0027]
The printer 1 has a reading device 15 having a card slot 16 for inserting a memory card 14 for a digital camera or digital video camera as a storage medium. The reading device 15 forms an image reading unit. The image data that can be read from the memory card 14 includes a still image (for example, a file in a jpeg format, a gif format, a tiff format, a bmp format, or the like) and a moving image (for example, an mpeg format, a mov format, an avi format, or the like). File.) With such a configuration, the printer 1 is a stand-alone type that can print image data read from the memory card 14 without being connected to a host computer (PC). It is also configured so that printing can be executed by connection with the.). As the memory card 14, a plurality of types of cards (for example, CompactFlash (R), SmartMedia (R), Memory Stick (R), etc.) are used depending on the form (shape, terminal location, etc.). The card slot 16 of the reading device 15 can insert a plurality of types of memory cards 14 having different forms without an adapter.
[0028]
An organic EL display 17 as a display device is attached to an upper part of the main body 2 of the printer 1. The organic EL display 17 is provided detachably from the main body 2 of the printer 1, and the printer 1 and the organic EL display 17 are electrically connected by a connection cable (not shown). The image read from the memory card 14 is displayed in color on the display panel 18 of the organic EL display 17 as a preview.
[0029]
FIG. 2 is a plan view showing a main part of the operation panel 3. The operation unit 12 is provided with a print start switch 19, a stop switch 20, an upper switch 21, a lower switch 22, a decision switch 23, and a return switch 24 in addition to the various operation switches 13a to 13c. The print start switch 19 is pressed to start printing an image. When the print start switch 19 is pressed when the image data is a moving image, the image displayed on the display panel unit 18 at that time is captured, and printing is started as a still image. The cancel switch 20 is pressed when canceling the printing in execution or when discarding the input contents (selection items, numerical values, etc.) on the liquid crystal display 11 in the non-printing state. The upper switch 21 and the lower switch 22 are operated to move a cursor when selecting a menu or various setting items on the liquid crystal display 11 or to increase or decrease a numerical value to be input. For example, when the upper switch 21 is pressed, the cursor on the liquid crystal display 11 moves upward, and when the lower switch 22 is pressed, the cursor moves downward.
[0030]
Further, the enter switch 23 is pressed to advance the display of the liquid crystal display 11 to the next screen or to confirm the setting contents input on the liquid crystal display 11. The return switch 24 is pressed when returning the liquid crystal display 11 to the initial screen, when returning the display of the liquid crystal display 11 to the previous screen, or the like.
[0031]
FIG. 3 is an electrical configuration diagram of the control unit 10 of the printer 1. The control unit 10 includes a CPU 25, a ROM 27, a RAM 28, a flash memory (EEPROM) 29, and an ASIC (Application Specific IC) 30 connected to the CPU 25 via a bus 26. The ROM 27 stores a control program executed by the CPU 25, menu display data for displaying a menu screen on the liquid crystal display 11, and the like. Here, the control program includes a display control program for performing display control of the liquid crystal display 11 and the organic EL display 17 of the operation panel 3, and a moving image reproduction for reproducing a moving image on the organic EL display 17. Program included. The RAM 28 is generated in a printing process in which print data received from the host computer (PC) and image data read from the memory card 14 are converted into print data when connected to the host computer (PC). Various data are stored. Further, the RAM 28 temporarily stores image data read from the memory card 14 in order to display a preview screen for confirming a print image and a layout on the display panel unit 18 before executing printing. Further, the RAM 28 temporarily stores the gradation value or the color balance value of the image changed on the operation panel 3. The RAM 28 constitutes an image storage unit. Although the RAM 28 is shown as one block in FIG. 3, the RAM 28 is actually composed of a plurality of RAM parts, one of which is used as a RAM area for storing an image for displaying an image on the display panel unit 18. Is done.
[0032]
The CPU 25 is connected to a UI board 31 (user interface board) that controls the operation panel 3, and controls the display of the liquid crystal display 11 via the UI board 31 by executing a control program in the ROM 27. Further, the CPU 25 executes various processes (print condition setting process, print process, etc.) based on operation signals input from the various operation switches 13a to 13c and 19 to 24. For example, by operating various operation switches 21 to 24 on the menu screen of the liquid crystal display 11 to select and confirm a menu item and its lower items, various printing conditions such as a layout and the number of prints are set. For example, a plurality of preset print images can be preview-displayed on the display panel unit 18 in order. After the print image is confirmed on the display panel unit 18 and the print start switch 19 is pressed, the print setting is set. The printing process based on the printing condition information is performed.
[0033]
The ASIC 30 executes print control based on a control signal from the CPU 25 and print data, and includes a print control unit 32 and an image control unit 33 in the present embodiment. When printing the image data of the memory card 14, the image control unit 33 performs a conversion process from RGB data to CMYK data on the image data read from the memory card 14. In the present embodiment, the CPU 25 performs a part of the image processing by software processing, and the image control unit 33 and the CPU 25 determine the resolution conversion processing, the color conversion processing, the halftone processing, and the dot formation order of the ink dot data of each color. Interlace processing (Micro Weave processing) for rearranging while taking into account is performed.
[0034]
On the other hand, the print control unit 32 performs carriage control and head control (ink ejection control) based on print data received from the host computer (PC) by the printer 1 or print data converted from image data by the image control unit 33. Execute. The print control unit 32 is a processing circuit that drives and controls a printing mechanism in an ink jet printer, and includes a recording head 34 (for example, a piezoelectric head), a carriage motor 35, a paper feed motor 36, and roll paper that constitute the printing mechanism. It is electrically connected to the drive motor 37 and the like.
[0035]
The reading device 15 is connected to the bus 26 via an interface (I / F) 39. The image data read by the reading device 15 is displayed on the organic EL display 17 via the bus 26.
[0036]
In this embodiment, image data can be set by performing detailed settings such as image selection and layout selection on the menu of the liquid crystal display 11. In the menu of the liquid crystal display 11, the RGB gradation value or the color balance value of the image data can be changed. Further, a predetermined layout frequently used by the user is stored in the printer 1 as a default in advance. The layout information of the print image set by the printer 1 is stored in the flash memory 29 together with various kinds of setting information such as the number of prints and the paper setting as print attribute information (attached printing information). Some digital cameras have a function of setting (print setting) the selection of an image to be printed and the selection of a layout in advance. The memory card 14 when printing is set by this type of digital camera is Image data and print attribute information (print attachment information) including layout information. When the print image is preview-displayed on the display panel unit 18, the CPU 25 executes predetermined task processing to generate print image display data from the image data acquired from the memory card 14 or the ROM 27 and the print attribute information. The print image display data is stored in the RAM 28.
[0037]
The display of the image data on the organic EL display 17 is performed as follows. First, reading of image data is started with the memory card 14 inserted into the card slot 16. When the image data is a still image, pressing the upper switch 21 or the lower switch 22 causes the display panel unit 18 to display three images on the display panel unit 18 in the order in which the plurality of image data are stored. Is displayed. Then, when the decision switch 23 is pressed in a state where one image data is selected, the image is displayed in a large size on the display panel unit 18.
[0038]
On the other hand, when the image data is a moving image, when the determination switch 23 is pressed, the moving image is captured and displayed on the display panel unit 18 as a still image. In this state, when the print start switch 19 is pressed, the printing of the still image is started, and when the stop switch 20 is pressed, the capture is released and the moving image is reproduced. Note that the organic EL display 17 constitutes a display unit and a still image display unit. The operation panel 3, the CPU 25, and the RAM 28 constitute a capture unit.
[0039]
Next, a circuit configuration of the organic EL display 17 will be described.
FIG. 4 is a block circuit diagram showing a system configuration of the organic EL display 17. FIG. 5 is a circuit diagram showing a circuit configuration of the display panel unit. FIG. 6 is a circuit diagram showing an internal circuit configuration of the pixel circuit and the precharge circuit.
[0040]
4, the organic EL display 17 includes a display panel section 18, a data line driving circuit 52, a scanning line driving circuit 53, a memory 54, an oscillation circuit 55, a power supply circuit 56, and a control circuit 57. Each of the components 18, 52 to 57 of the organic EL display 17 may be configured by an independent electronic component. For example, each of the components 18, 52 to 57 may be configured by a one-chip semiconductor integrated circuit device. Further, all or a part of each of the components 18, 52 to 57 may be configured as an integrated electronic component. For example, the data line driving circuit 52 and the scanning line driving circuit 53 may be integrally formed in the display panel section 18. All or a part of each of the components 52 to 56 may be configured by a programmable IC chip, and the functions thereof may be realized in software by a program written in the IC chip.
[0041]
As shown in FIG. 5, the display panel section 18 has a plurality of pixel circuits 60 as a plurality of electronic circuits arranged in a matrix. In other words, each pixel circuit 60 is arranged between a plurality of data lines X1 to Xm (m is an integer) extending in the column direction and a plurality of scanning lines Y1 to Yn (n is an integer) extending in the row direction. Are arranged in a matrix. Each pixel circuit 60 has, as a current driving element, an organic EL element 61 whose light emitting layer is made of an organic material. Note that a later-described transistor formed in the pixel circuit 60 is usually configured by a TFT.
[0042]
The data line driving circuit 52 is provided with a data voltage generating circuit 63 for each of the data lines X1 to Xm. Each data voltage generation circuit 63 supplies an electric signal, that is, a data signal (data voltage Vdata) as a program value to the pixel circuit 60 via the corresponding data line X1 to Xm. When the internal state of the pixel circuit 60 is set according to the data voltage Vdata, the value of the current flowing through the organic EL element 61 is controlled in accordance with the setting, and the luminance gradation of the organic EL element 61 is controlled. Is controlled. The power supply circuit 56 receives power from the power supply circuit 50 of the printer 1 and supplies drive power to each component of the organic EL display 17. Here, since the driving voltage for causing the organic EL element 61 to emit light is as low as about 3 V, the power supply circuit 56 is driven by the same driving voltage (for example, 5 V) as the data line driving circuit 52 and the scanning line driving circuit 53. It is possible. Therefore, it is not necessary to separately provide a boosting circuit between the power supply circuit 50 of the printer 1 and the organic EL display 17.
[0043]
As shown in FIG. 6, the scanning line driving circuit 53 selectively drives one of the plurality of scanning lines Yn to select a pixel circuit group for one row. Each of the scanning lines Y1 to Yn includes a first sub-scanning line Va and a second sub-scanning line Vb. The scanning line driving circuit 53 outputs a first selection signal SL1 to the first sub-scanning line Va and outputs a second selection signal SL2 to the second sub-scanning line Vb. The memory 54 stores the display data supplied from the control unit 10. The oscillation circuit 55 supplies the reference operation signal to other components of the organic EL display 17.
[0044]
The control circuit 57 controls the components 18, 52 to 56 collectively. The control circuit 57 converts the display data (image data) from the control unit 10 stored in the memory 54 indicating the display state of the display panel unit 18 into matrix data indicating the luminance gradation of light emission of each organic EL element 61. . The matrix data includes a scanning line driving signal for sequentially selecting a pixel circuit group for one row and a data line driving signal for determining a level of a data voltage Vdata for setting the luminance of the organic EL element 61 of the selected pixel circuit group. Signal. Then, the scanning line driving signal is supplied to the scanning line driving circuit 53. The data line drive signal is supplied to the data line drive circuit 52.
[0045]
Next, the internal circuit configuration of the pixel circuit 60 will be described with reference to FIG. For convenience of explanation, the pixel circuit 60 arranged at the intersection of the m-th data line Xm and the n-th scanning line Yn and connected between the two data lines Xm and the scanning line Yn will be described.
[0046]
The pixel circuit 60 is a pixel circuit of a voltage drive type in the present embodiment, and includes an organic EL element 61 as a current drive element and a programming circuit 62. The programming circuit 62 includes a driving transistor Q11 as a second transistor, a programming transistor Q12 as a first transistor, a switching transistor Q13 as a fourth transistor, a detection gate transistor Q14 as a third transistor, A holding capacitor C1 as a capacitance element is provided.
[0047]
The programming transistor Q12 and the switching transistor Q13 are composed of N-channel FETs. The driving transistor Q11 and the detection gate transistor Q14 are composed of P-channel FETs.
[0048]
The driving transistor Q11 has a drain connected to the anode of the organic EL element 61 via the switching transistor Q13, and a source connected to the power supply line L1. The holding capacitor C1 is connected between the gate of the driving transistor Q11 and the power supply line L1. The gate of the driving transistor Q11 is connected to the data line Xm via the programming transistor Q12. Further, the drain of the driving transistor Q11 is connected to the data line Xm via the detection gate transistor Q14.
[0049]
The gate of the programming transistor Q12 is connected to the first sub-scanning line Va. The source of the detection gate transistor Q14 is connected to the first sub-scanning line Va. The gates of the switching transistor Q13 and the detection gate transistor Q14 are both connected to the second sub-scanning line Vb.
[0050]
Next, the operation of the organic EL display 17 configured as described above will be described according to the operation of the pixel circuit 60.
First, when the scanning line Yn in the n-th row is selected and each pixel circuit 60 connected to the scanning line Yn starts to emit light, the scanning line driving circuit 53 sends the first sub-scanning line Va of the scanning line Yn to the first. The selection signal SL1 is output, and the programming transistor Q12 is turned on. At the same time, the data voltage Vdata is supplied from each data voltage generation circuit 63 to the corresponding holding capacitor C1 of each pixel circuit 60. When the predetermined time has elapsed, the first selection signal SL1 disappears, and the data writing period ends. At this time, in each pixel circuit 60, the data voltage Vdata is supplied to the holding capacitor C1, and the driving transistor Q11 is turned on. However, since the switching transistor Q13 is turned off, the organic EL element 61 No drive current flows.
[0051]
Eventually, the second selection signal SL2 is output from the scanning line driving circuit 53 to the second sub-scanning line Vb of the scanning line Yn, and the switching transistor Q13 of each pixel circuit 60 on the scanning line Yn is turned on. Then, in each of the pixel circuits 60, a driving current having a current value corresponding to the data voltage Vdata is supplied to the organic EL element 61 based on the turning on of the switching transistor Q13, and the organic circuit of each of the pixel circuits 60 on the scanning line Yn. The EL elements 61 emit light at a luminance corresponding to the data voltage Vdata.
[0052]
When a predetermined time has elapsed after the output of the second selection signal SL2, the second selection signal SL2 disappears, and the switching transistor Q13 of each pixel circuit 60 on the scanning line Yn is turned off. When the switching transistor Q13 is turned off, the driving current supplied to the organic EL element 61 is cut off, and the organic EL element 61 of each pixel circuit 60 on the scanning line Yn stops emitting light. That is, the light emission period of each pixel circuit 60 on the scanning line Yn ends, and the process waits for the start of a data writing period for the next light emission.
[0053]
By repeating this operation, the organic EL element 61 of each pixel circuit 60 on each of the scanning lines Y1 to Yn is controlled to emit light at a luminance corresponding to the data voltage Vdata, and the organic EL display 17 displays the display data from the printer 1. Display an image based on the image.
[0054]
According to the printer 1 and the organic EL display 17 of the present embodiment, the following effects can be obtained.
(1) In the present embodiment, the display device mounted on the printer 1 is configured by the organic EL display 17. Therefore, a display device having a wider viewing angle can be obtained. FIG. 7 is an explanatory diagram showing a comparison of viewing angles of the organic EL display 17 and a conventional liquid crystal display. According to the figure, the viewing angle of a conventional liquid crystal display is as narrow as about 60 °, whereas the viewing angle of an organic EL display is as wide as about 170 °. For this reason, the user can see the organic EL display 17 in a wide range, and can easily operate the printer. Further, since the organic EL display 17 is used, there is no need to provide a special booster circuit for driving the organic EL, and the printer 1 with a simple circuit configuration can be obtained.
[0055]
(2) In the present embodiment, the gradation value or color balance value of the image can be changed by the operation panel 3, and the image whose gradation value or color balance value has been changed is displayed on the organic EL display 17. . Then, this image can be printed by the printer 1. In particular, since the display device is constituted by the organic EL display 17, when the color tone of the display screen is changed, there is no need to provide an adjusting mechanism for changing the output voltage of the power supply, and the display can be performed with a simple power supply configuration. A device is obtained.
[0056]
(3) In the present embodiment, a still image and a moving image can be displayed on the organic EL display 17 as images. In particular, since the response of the organic EL element is high, the display speed of an image is high, and a high-quality moving image can be displayed. Further, the printer 1 of the present embodiment can capture an image at one point in time of a moving image and display it as a still image. For this reason, the moving image displayed on the organic EL display 17 is captured and displayed as a still image. Therefore, while displaying the moving image on the organic EL display 17, an image at a desired point in time at which printing is desired among the moving images can be captured and printed.
[0057]
(4) In the present embodiment, the image data of the memory card 14 is read from the reading device 15 and displayed on the organic EL display 17. Therefore, in the stand-alone printer 1, the image data can be directly displayed on the organic EL display 17 and printing can be executed without connecting to the host computer (PC).
[0058]
The above embodiment may be modified as follows.
In the above embodiment, the tone value or color balance value of the image data read from the memory card 14 is changed to a desired tone value or color balance value on the operation panel 3. Then, the changed image data is converted into matrix data representing the luminance gradation of light emission of each organic EL element 61.
This represents the luminance gradation of light emission of each organic EL element 61 without changing the gradation value or color balance value of the image data read from the memory card 14 to a desired gradation value or color balance value. Convert to matrix data. Then, based on the matrix data, the potential of the power supply line L1 when each organic EL element 61 emits light may be changed so as to have a desired gradation or color balance. That is, instead of changing the gradation value or color balance value of the image data read from the memory card 14 to a desired gradation value or color balance value, the potential of the power supply line L1 is changed to the desired gradation or color balance value. It may be changed so that
[0059]
In the above embodiment, the main body 2 of the printer 1 and the organic EL display 17 are detachably provided. However, the organic EL display may be integrated with the main body 2. Further, the form of the ink jet printer is not limited to the above embodiment, and may be another form.
[0060]
In the above-described embodiment, a dedicated display connected to the printer 1 is used as the organic EL display 17, but a general-purpose display may be used as long as the display is an organic EL display. For example, a slot or the like in which a mobile phone or a personal digital assistant (PDA) having an organic EL display can be mounted so as to be connectable to the printer 1 may be provided.
[0061]
In the above embodiment, when displaying a moving image on the organic EL display 17, sound output means for reproducing the sound may be provided. The audio output means may be constituted by a speaker provided in the printer 1, a speaker provided in the organic EL display 17, an audio output terminal, or the like. With this configuration, the user can check not only the moving image but also the sound thereof on the printer 1.
[0062]
In the above embodiment, the printer 1 may have a network communication function. In this case, the network communication function may be a case of connecting to a network by connecting to a modem, a modem card, a PHS card, or the like, or a case of connecting to a mobile phone, a personal digital assistant (PDA), or the like to communicate with the network. In this case, the image data displayed on the organic EL display 17 can be transmitted to another computer, a mobile phone, a PDA, or the like.
[0063]
In the above embodiment, the organic EL display 17 is configured to be able to display both a still image and a moving image as image data.
[0064]
In the above embodiment, the ink jet printer is used as the recording device. However, the organic EL display may be used for another printer such as a laser printer. Further, an organic EL display may be provided in a multifunction peripheral having functions such as a printer, a copier, a facsimile, and a scanner. In the present specification, the recording device includes a multifunction peripheral having a printing function.
[Brief description of the drawings]
FIG. 1 is a perspective view of a printer according to an embodiment of the present invention.
FIG. 2 is a plan view showing a main part of the operation panel.
FIG. 3 is an electrical configuration diagram of the printer.
FIG. 4 is a block circuit diagram showing a circuit configuration of the organic EL display.
FIG. 5 is a block circuit diagram showing an internal circuit configuration of a display panel portion and a data line driving circuit.
FIG. 6 is a circuit diagram showing an internal configuration of a pixel circuit.
FIG. 7 is an explanatory diagram showing a comparison of viewing angles of a display.
[Explanation of symbols]
1 Printer as recording device
3 Operation panel as operation means
14 Memory card as storage media
15 Reading device as image data reading means
17 Organic EL display as display device
28 RAM as image storage means

Claims (11)

A display device mounted on a recording device, wherein the display device is constituted by an organic EL display. A recording device, wherein a display device mounted on the recording device comprises an organic EL display. The recording device according to claim 2,
A recording apparatus, wherein an image to be printed is displayed on the display device, and the displayed image is printed. The recording device according to claim 3,
Operating means for changing the gradation or color balance of the image displayed on the display device,
Image storage means for storing an image in which the gradation or color balance has been changed,
Display means for displaying the changed image stored in the image storage means on the display device,
A recording apparatus, wherein the changed image can be printed. The recording device according to claim 3 or 4,
The recording device according to claim 1, wherein the image is a still image or a moving image. The recording device according to claim 5,
Capture means for capturing an image at one point in the moving image and storing it as a still image,
Still image display means for displaying the still image on the display device,
A printing execution unit that executes printing of the still image. The recording device according to any one of claims 2 to 6,
A recording apparatus, further comprising a data reading unit for reading data corresponding to an image from a storage medium. The recording apparatus according to any one of claims 2 to 7,
The recording device according to claim 1, wherein the recording device is an ink jet printer. The recording apparatus according to any one of claims 2 to 7,
The recording device according to claim 1, wherein the recording device is a laser printer. A method for controlling a recording device in which a display device mounted on the recording device is configured by an organic EL display,
Changing the tone value or color balance of the image displayed on the display device,
Storing the image in which the gradation or color balance has been changed in an image storage unit of the recording device;
Displaying the changed image stored in the image storage means on the display device. The method for controlling a recording apparatus according to claim 10,
The method of controlling a recording apparatus, further comprising the step of printing an image displayed on the display device.

Images