KR20020078067A - Electromagnetic picture frame and its display method - Google Patents

Abstract

PURPOSE: An electronic frame and a method of displaying the frame are provided to display digital video data on an electronic frame and to control contrast, bright and color according to surrounding intensity of illumination when the digital video data is displayed. CONSTITUTION: An electronic frame includes a key input unit(113) through which a user's key input signal is inputted, an aspect ratio controller(153) for controlling aspect ratio, and a data storage(131) for storing video data. The electronic frame further includes a memory controller for controlling read/write access of data stored in the data storage, an organic EL(152) for displaying the video data, a display driver(151) for driving the organic EL, and a controller(210) for controlling each of the components and controlling image overlap of a picture displayed according to the user's key input signal.

Description

Electronic picture frame and its display method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic picture frame and a display method thereof, and more particularly, to display digital image data on an electronic picture frame, to adjust contrast, brightness, and color according to ambient illumination at the time of display, and to display information using a mounted clock. The present invention relates to an electronic picture frame and a display method thereof.

In general, a digital camera is a digital electronic still camera. The image entered through the lens of the digital camera is accepted by a charge-coupled device (CCD), an image sensor, instead of a conventional silver salt film, and converts light into electrons. In the digital camera, various optical technologies have been developed (together with the enlargement of the CCD) because an image input through a lens has to be formed on a CCD smaller than a conventional film. Memory devices and compression forms of digital cameras usually have internal memory between 1MB and 4MB, and most digital cameras store many images.

In general, there are two methods of digitally displaying an image.

First, as shown in FIG. 1A, a first method of photographing an image with an analog camera is performed, and after performing the first step 11, a photograph is taken through a developing and printing step. After the second step 12 of making, the third step 13 of changing the digital signal of the image by scanning the picture with the scanner after the second step 12, and the personal after performing the third step 13 And a fourth step 14 of connecting to a computer and displaying on a monitor for viewing, editing or recording.

Next, as shown in FIG. 1B, the first step 15 of taking a picture with a digital camera, and after performing the first step 15, is directly connected to a personal computer and displayed on a monitor. And a second step 16 of viewing, editing or recording.

As mentioned above, Sony's two-inch floppy disk electronic camera, which is an early stage of a digital camera, modulates an electrical signal into an FM signal and records it as analog data. By imaging light on the CCD, the CCD converts the intensity of the light into an electrical signal to create an image. The most important part of a digital camera is the CCD, which has slightly different performance depending on the method.

The digital camera stores an image captured by the camera as a digital signal in units of dots or pixels. Using this, images can be downloaded directly to a computer or output via a computer printer.

However, photos taken with such a digital camera occupy about 1MB per sheet, so if you do not use film, the hard disk will fill up quickly. Therefore, if the duplicated or unclear state of the picture is not deleted quickly, not only the waste of the hard disk may be brought on, but also excessively occupies the capacity of the hard disk and the memory, thereby degrading the performance of the PC.

In addition, the conventional digital camera has a problem in that a PC must be used (to accurately display a desired image) and a printer is required for output.

A general digital camera can be taken separately from a computer, but to use the captured image properly (display, edit, print, etc.), it must be connected to a computer. Therefore, although most digital camera products support both Windows and Macintosh environments at the same time, some products only support certain environments, so it is inconvenient to check whether your digital camera supports the environment of your computer. There is this.

Currently, digital cameras capable of taking pictures without film are rapidly spreading, and accordingly, digital camera developing businesses that can be used without stores in Japan and Korea are newly appearing. But printing to color printers is expensive and it's hard to get a photo that's the same quality as a regular photo without the use of a high-end printer and paper. In light of this, customers who want to print their pictures can send digital pictures via the Internet or PC communications, print them, and deliver them.

However, print service providers can be cumbersome and expensive to receive service support from outside companies. Therefore, by changing the concept completely, the image taken with the digital camera is printed to prevent the hassle of making a picture, that is, the electronic frame can replace the function of the existing paper frame, and the image taken with the digital camera can be directly If you can display the necessary image by displaying in high resolution, it will be able to solve the inconvenience of paper frame and the disadvantage of printing the image taken by digital camera. That is, the shortcomings of having a huge quantity of paper frames and digital cameras need to solve the disadvantages of expensive printers.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. As a display device of an electronic picture frame, an electronic picture frame and its display, which can reduce power consumption and bring a lightweight, thin product without backlight by applying an organic EL. The purpose is to provide a method.

Another object of the present invention is to automatically adjust the contrast, bright, and color of the display information according to the ambient light sensed by the illuminance sensing means of the image information displayed on the organic EL, and precisely step by step the precise light control unit. It is an object of the present invention to provide an electronic picture frame and a display method thereof that can compensate.

Still another object of the present invention is to allow the electronic picture frame to receive the wireless transmission data transmitted from the computer with the sleeve of the electronic picture frame as the master, and to control various kinds of control information, image display control information, It is an object of the present invention to provide an electronic picture frame and a display method thereof in which image data can be upgraded.

It is still another object of the present invention to divide a default image area and a user image area into a memory area so that the user image area can overlap with the default image area, and the change of the default image area and the change of the user image area can be performed. It is an object of the present invention to provide an electronic picture frame providing a slide function and a display method thereof by enabling the user image area to be shifted to the default image area.

Still another object of the present invention is to count the clock display and time count by using a timer in an electronic picture frame and provide a power saving mode, an alarm mode, a sleep mode, a slide mode, etc. for each set reservation period, and perform display control according to the set period. Its purpose is to provide an electronic picture frame and its display method.

1A and 1B are a flowchart illustrating a conventional method of digitizing and displaying an image.

2 is a front view of the electronic picture frame according to the embodiment of the present invention;

Figure 3 is a block diagram of an electronic picture frame according to an embodiment of the present invention.

4A is a detailed block diagram of a memory and a memory controller according to an exemplary embodiment of the present invention.

4B is a conceptual diagram illustrating a slide function of an overlap display according to an exemplary embodiment of the present invention.

5 is a flowchart illustrating an electronic frame display method according to an exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100.Electronic frame 111.Power switch

112 Power supply 113 Key input

121 Illumination detector 123 Illumination unit

131 ... Memory 132 ... Memory Control

140,210 ... control unit 141 ... CPU

142 ... Timer143 ... Counter

144 ROM

151 Display driver 152 Organic EL

153 Scale factor 170 Brutus receiving module

171 RF receiver 172,221 Baseband processor

200 ... Computer 220 ... Brutus Transmission Module

222 ... RF transmitter

In order to achieve the above object, the electronic picture frame according to an embodiment of the present invention,

Key input means for a key input signal of a user; Data storage means for storing image image data; A memory controller for controlling read / write access of data stored in the data storage means; An apparatus for displaying the image image data, comprising: an organic EL; A display driver for driving the organic EL; A magnification adjusting unit for adjusting the screen magnification; And a controller for controlling the respective parts and controlling the image overlap of the displayed screen according to the user's key input signal.

Preferably, the method further includes illuminance detecting means for detecting ambient illuminance, and the controller is configured to adjust contrast, bright, and color of the displayed screen according to a value sensed by the illuminance detecting means. .

Preferably, the change according to the sensed illuminance further comprises a dimming unit for precisely changing the contrast.

In detail, the data storage means is divided into a plurality of default image areas stored for a specific theme for a background screen, and a user image area storing image data of a user displayed on the background screen, and the memory control means stores the default image. Including a host buffer for storing data and a frame buffer for storing user image data, the user image overlaps the background image.

In detail, the control unit includes a timer that counts time and a counter that counts the time counted by the timer, and displays the time of the timer and counts the period set by the user to shift the image image data every set period. It is characterized by.

Electronic picture frame according to another embodiment of the present invention,

A screen adjusting unit for adjusting the screen magnification; Data storage means for storing image image data; A memory controller for controlling read / write access of data stored in the data storage means; An apparatus for displaying the image image data; A display driver driving the display device; A brutus receiving module comprising an RF receiver for receiving commands, event control and data from an external peripheral for short range wireless communication, and a baseband processor for converting the received data packet into an HCI packet; And a controller configured to perform a control operation of each unit according to short-range wireless data received from the brutus reception module.

Preferably, the method further comprises illuminance sensing means for sensing ambient illuminance to adjust contrast, bright and color of the displayed screen.

In detail, the external peripheral device is a computer, and the computer includes a baseband processor for adding an access code and a header code to various HCI packets for short range wireless transmission, and converts the packet format into wireless data. It characterized in that it comprises a brutus transmission module consisting of an RF transmitter for transmitting in a frame.

Electronic frame display method according to an embodiment of the present invention,

Checking a display mode when the power is turned on; Displaying image data when the display mode is the slide mode as a result of the checking of the step; Counting using the time count value and reading the count value after the display step; And reading the next image and shifting the display image if the count value is a set slide period.

Preferably, when the set mode is an alarm mode, the audio processor and the display driver may be controlled to output one or both of an alarm and a display output of an image.

Preferably, when the display mode is set to the power saving mode or the sleep mode after the display step, the display on / off control for a predetermined time from a specific time and the brightness level control of the display is characterized.

Hereinafter, with reference to the accompanying drawings as follows.

2 is a front view of an electronic picture frame according to an embodiment of the present invention, FIG. 3 is a block diagram of an electronic picture frame according to an embodiment of the present invention, and FIG. 4A is a detailed configuration view of a memory and a memory controller according to an embodiment of the present invention. 4B is a conceptual diagram illustrating a slide function of an overlap display according to an exemplary embodiment of the present invention.

2 and 3, a power switch 111 for turning on and off the power; A power supply unit 112 for converting the supplied power into a proper power and supplying the power; A key input unit 113 for key input; An illumination detection unit 121 for detecting an ambient illumination; A memory 131 in which default image and user image 131a and 131b data for reproduction are stored; A memory controller 132 for accessing the memory 131; A controller 140 for controlling the respective sub-controls, time coefficients, and displays to perform a corresponding control operation according to the signal input from the key input unit 113; An organic EL 152 and a display driver 151 for driving the organic EL 152; A magnification adjuster 153 for adjusting a screen magnification when the display driver 151 is driven; An audio processor 161 for processing an audio signal and a speaker 162 for outputting an audio signal; An electronic picture frame 100 including a brutus reception module 170 including an RF receiver 171 and a baseband processor 172 for short-range wireless data reception; It is a configuration that includes a computer 200 equipped with a brutus transmission module 220 as a master for controlling the electronic picture frame 100 with a sleeve for wireless control of the electronic picture frame 100.

Referring to the accompanying drawings, the electronic picture frame and the display method according to an embodiment of the present invention configured as described above are as follows.

2 and 3, when the power switch 111 is turned on, power is supplied to the electronic frame 100, and the power supply unit 112 converts the supplied power into AC and DC power and is required for each unit. Supply with proper power. The power supply 112 may be replaced with a battery, and may be used by selectively combining a power supply and a battery.

The key input unit 113 includes a function key for inputting a control signal desired by a user, and may include a keypad, an on screen display (OSD), a remote controller, and the like.

When the illuminance detecting unit 121 detects the brightness information of the external environment and outputs it to the control unit 140, the control unit 140 compares the reference gain value with the detected brightness information and contrast and bright according to the detected illuminance. Read the gain value to adjust the color. In addition, the dimming unit 123 changes the contrast precisely in stages when the contrast changes according to the sensed illuminance.

The memory 131 is a combination of a compact disk and / or a floppy disk, a DRAM, a ROM / hard disk, a flash memory, and the like. It may also be a data storage device recorded from an image recording medium. In addition, the memory 131 has a structure divided into a default image area storing default image data serving as a background screen and a user image area storing user image data on the background screen.

The memory control unit 132 has a control for reading image data stored in the memory 131 or recording image data, and a structure in which the image recording medium can be attached / removed.

The controller 140 includes a central processing unit (CPU) 141, a timer 142, a counter 143, a ROM 144, and a RAM 145, and counts the time when the timer 142 counts the time. The counter 143 repeats the counting at a cycle such as a day / hour / minute unit according to the time coefficient. Various control operations are performed to perform the operation in the corresponding mode according to the control signal of the key input unit 113.

The display driver 151 is driven by the controller 140 to emit light of the organic EL 152. Here, the organic EL 152 is a self-luminous type and thus does not require a backlight, thereby reducing power consumption and having characteristics such as light weight and thinness.

The magnification adjuster 153 controls the display driver 151 by the controller 140 to adjust the screen size of the displayed user image.

The brutus reception module 170 includes an RF receiver 171 and a baseband processor 172. The RF receiver 171 receives a signal transmitted from a wireless data transmitter, that is, a computer 200, at a short distance. Noise amplification of the frequency signal is suppressed as much as possible, and the signal of the set frequency band is amplified and transmitted to the baseband processor 172 at a low frequency band. The baseband processor 172 converts the received data into a HOST CONTROL INTERFACE (HCI) packet and transmits the received data to the controller 173. The controller 140 analyzes the access code and the header code included in the HCI packet to perform an operation.

The electronic picture frame 100 is equipped with BLUETOOTH and communicates with a peripheral device in a short range. Allows you to perform a function.

As a master, the computer 200 transmits data to the user to control the electronic frame and update image data as wireless data through input means such as a keyboard and a mouse, and the controller 210 as an internal component transmits brutus. The control information is transmitted to the module 220, and the brutus transmission module 220 is changed into a packet format for adding an access code and a header to various HCI data packets, and then changed to a predetermined data packet for wireless transmission. The RF transmitter 222 wirelessly transmits in the frequency band set.

The electronic picture frame and its display method according to the present invention will be described in detail as follows.

First, when the power switch 111 is turned on, the power supply 112 converts the supplied power into AC and DC power required by each component inside the electronic frame and supplies the appropriate voltage.

According to the user key input signal of the key input unit 113, the control unit 140 performs a control operation of each unit. The memory control unit 132 selects the default image data and the user image area selected from the default image area stored in the memory 131. Reads the user image data with priority. The image data read from the memory controller 132 is mixed and the organic EL 152 is driven by the display driver 151 to display the image data. That is, the memory controller 132 reads the user image data from the user image data area 131b in the frame buffer 132b and stores the background image data area 131a in the host buffer 132a as shown in FIG. 4A. The overlapping of the display is controlled as described above with the organic EL 152 through mixing with the background image P1 read from).

At this time, the background screen on the screen displayed on the organic EL 152 is an image of one of the default images, and the user's image is displayed on the background screen in an overlapping state.

This means that if the default image 131a set by the user is the first default image, the first default image P1 is displayed on the entire screen on the background screen, and the first image image P2 is displayed in a predetermined area of the displayed first default image. Is displayed with overlap.

Here, the background image is a value stored in the default image area, and a plurality of images stored for each specific theme are stored, and may be stored according to season or background color.

When the image data is displayed on the organic EL 152 as described above, the illuminance sensor 121 detects illuminance from the surrounding environment and transmits the detected value to the controller 140. The controller 140 compares the gain value stored in the internal RAM 145 and adjusts the currently displayed screen state according to the read contrast, bright, and color values according to the comparison result. During the contrast conversion, the dimmer 123 changes the contrast change more precisely step by step for a dimmer function to widen the range of brightness adjustment.

On the other hand, when the image is displayed on the organic EL 152, the control unit 140 performs a display control for this when the display mode of the image is the slide mode, the counter counts the time information counted by the internal timer 142 The count is made at 143. At this time, if the slide period set by the user coincides with the counter value, the image shift control signal is output to the memory controller 132.

The frame buffer 132b of the memory controller 132 reads new user image data from the user image data area 131b by the image shift control signal, and writes the new user image data to the background image P1 stored in the host buffer 132a. After mixing the image data, the overlapping of the display is controlled as described above for the organic EL 152.

By the image shift control signal, as shown in FIG. 4B, the organic EL 52 has the second and third user images P2 on the image of the background screen P1 in time information units t1, t2,... They are displayed while being sequentially shifted at regular intervals t in order.

As described above, the electronic picture frame 100 has a slide function, thereby adding a function such as an album without having a simple idea of the picture frame, and the user may arbitrarily change and adjust the slide period and the position of the display. The image data is displayed on the background screen at a center, left or right side of the screen with a predetermined magnification. When text is present, the text may be displayed on the background screen.

Meanwhile, the electronic frame 100 performs short range wireless communication with an external peripheral device. The brutus reception module 170 inside the electronic frame receives the short range wireless data signal through the RF receiver 171 and basebands the received data packet. The processor 172 converts the received HCI packet into HCI packets, divides the received HCI packet into an access code and a header code, and outputs the HCI packet to the controller 140. Here, as the HCI, a USB, standard PC interface including RS232C can be used, and the HCI packet is divided into a command, event, and data packet.

The brutus transmission module 220 corresponding thereto is mounted on an external peripheral device. In the computer 200, the brutus transmission module 220 receives a control signal from the control unit 210 and accesses various HCI packets from the baseband processor 221. And a packet format to which the header code is added, and then, the packet code is changed into a predetermined data packet for wireless transmission and wirelessly transmitted in the frequency band set by the RF transmitter 222.

With such short-range wireless data communication, the computer 200 becomes a master and the electronic picture frame 100 becomes a sleeve, and the computer 200 transmits information for various control and upgrades inside the electronic picture frame, The frame 100 may receive a wireless data signal through a key input unit corresponding to a key input unit, perform a corresponding function according to the received control signal, and may upgrade a program or upgrade image data.

It may be composed of a communication device such as a computer, a mobile phone, a PDA, a remote control, a terminal, a TV equipped with a short-range wireless communication module, and the communication device communicates with other home appliances using short-range wireless communication when automating the home appliance. It can be a subject.

FIG. 5 is a flowchart illustrating an electronic frame display method. When the power is turned on, the display mode is checked (401, 402). After determining whether the display mode is the slide mode (403), the image data is displayed (404) in the slide mode.

When the image data is displayed, the counter counts using a time count value (405), reads the count value (406), and compares whether the read count value is a set period of the slide mode (407). If it is set, the new image is read and output through the frame buffer 132b of the memory controller 132 to shift the user image on the background screen (408). By repeating this operation, the user image data stored in the memory 131 is sequentially shifted to provide a slide show function.

If the determination result of the display mode of the display mode of the 402 is the alarm mode (409), after confirming that the time count value is the set alarm time (410), if the set alarm time and controls the audio processor 161 and the display driver 151. 411, the processed audio alarm signal is output through the speaker 162, and image data is displayed on the organic EL 152 by driving of the display driver 151 (412). This allows the user to selectively set the alarm to sound, or set the alarm to be output with an image. Thereafter, the display determines whether the slide mode again, if the slide mode, the display performs the operation as a slide (403).

In addition to the above mode control, when the display mode is the power saving mode, when the user reserves the power saving mode for a predetermined time during the daytime when there is no user, the controller 140 controls the display driver 151 during the scheduled power saving time. By turning it off, power consumption due to unnecessary displays is prevented.

In the sleep mode, when the sleep time is set to perform the function of lighting, the dimmer 123 gradually lowers the brightness of the organic EL 152 by using the sensed value of the illuminance sensor 121 and sleeps. By making it have the same brightness as, it performs the function to sleep mode. After a predetermined time after the bedtime, the power saving mode is performed.

In addition, the present invention, as shown in the above description, the electronic picture frame can be reproduced through the electronic picture frame after storing the electronic picture frame in various auxiliary storage devices such as a computer hard disk or an image recording medium. Image by using a digital camera or by scanning an existing photo paper photo using a scanner, and saving the photo image as a file on an image recording medium, editing the desired image data, and then saving the edited data in memory. This is possible.

Also, real-time image data taken using an image camera on an electronic picture frame (or album) can be reproduced through a memory, an organic EL element, and a speaker.

As described above, the electronic picture frame and the display method thereof according to the present invention display a large amount of image image data digitally through the frame memory and the organic EL device and display the displayed images while shifting the displayed images in units of time coefficients. By giving it, there is an effect that can be shown in the form of multimedia beyond the form of a simple frame.

In addition, as the display device, the application of the organic EL device does not require a backlight, thereby reducing the power consumption, and also has the effect of making a frame with a fast response speed and light weight and thinness.

In addition, by detecting the ambient illumination and display with the optimum contrast, there is an effect that can always provide the optimum image to the user.

In addition, by using the time coefficient to enable the alarm function and the image slide show in the unit of time, it can be adjusted so that the image is always displayed when the user wants to see the effect that can provide a convenient slide function have.

In addition, the electronic picture frame can communicate with a nearby communication device in a short range by a short range wireless communication module, thereby enabling the operation of the electronic picture frame and the upgrade of data, etc. in a communication device that becomes a communication subject according to the automation of home appliances.

Claims (12)

Key input means for a key input signal of a user; A screen adjusting unit for adjusting the screen magnification; Data storage means for storing image image data; A memory controller for controlling read / write access of data stored in the data storage means; An apparatus for displaying the image image data, comprising: an organic EL; A display driver for driving the organic EL; And a controller for controlling the image overlap of the screen to be controlled and displayed in accordance with the key input signal of the user. The method of claim 1, Electronic picture frame further comprises a light intensity sensing means for detecting the ambient light intensity. The method according to claim 1 or 2, The control unit is an electronic frame, characterized in that for adjusting the contrast, bright, color of the displayed screen according to the value detected by the illuminance detecting means. The method according to claim 1 or 2, The change according to the detected illuminance further comprises a light control unit for precisely changing the contrast. The method of claim 1, The data storage means is divided into a plurality of default image areas stored for a specific theme for a background screen, and a user image area storing image data of a user displayed on the background screen, and the memory control means stores the default image data. And a frame buffer for storing the user image data and a host buffer for storing the user image in the background image. The method of claim 1, The control unit includes a timer for counting time and a counter for counting the time counted by the timer, and displaying the time of the timer and counting a period set by the user to shift the image image data at each set period. Featuring an electronic picture frame. A screen adjusting unit for adjusting the screen magnification; Data storage means for storing image image data; A memory controller for controlling read / write access of data stored in the data storage means; An apparatus for displaying the image image data; A display driver driving the display device; A brutus receiving module comprising an RF receiver for receiving commands, event control and data from an external peripheral for short range wireless communication, and a baseband processor for converting the received data packet into an HCI packet; And a controller configured to perform a control operation of each unit according to short-range wireless data received from the brutus receiving module. The method of claim 7, wherein And an illuminance sensing means for sensing ambient illuminance to adjust contrast, bright and color of the displayed screen. The method of claim 7, wherein The external peripheral device is a computer, and a baseband processor for adding an access code and a header code to various HCI packets to a packet format for short-range wireless transmission, and transmitting the packet format to the electronic frame as wireless data. Electronic frame comprising a brutus transmission module consisting of an RF transmitter. Checking a display mode when the power is turned on; Displaying image data when the display mode is the slide mode as a result of the checking of the step; Counting using the time count value and reading the count value after the display step; And reading the next image and shifting the display image when the count value is a set slide period. The method of claim 10, And the audio processing unit and the display driver to control one or both of the alarm and the display output of the image when the set mode is the alarm mode. The method of claim 10, And a display on / off control for a predetermined time and a brightness level control of the display when the display mode is set to a power saving mode or a sleep mode after the display step.