CN101083709A - Dual Display Panel Digital Photo Frame - Google Patents

Abstract

The invention relates to a double-display-panel digital photo frame, which is characterized in that a microprocessor, an input/output interface, a multiplexer and a first/second buffer unit are arranged in a photo frame body, a straight first display panel and a horizontal second display panel are arranged on the front side of the photo frame body, and when a picture to be displayed is a straight picture, the microprocessor sends the picture to the first buffer unit and then the picture is displayed by the first display panel; when the picture to be displayed is a horizontal picture, the microprocessor sends the picture to the second buffer unit and then the picture is displayed by the second display panel, so that the invention can automatically switch to a proper display panel to display according to the form of the picture file, and avoids image distortion or abnormal image display caused by incorrect picture display proportion.

Description

Dual Display Panel Digital Photo Frame

technical field

The invention relates to a digital photo frame, especially a digital photo frame with vertical and horizontal double display panels.

Background technique

With the advent of the digital age, many traditional devices are moving towards digitalization. Cameras are a representative example. With the increasing popularity of digital cameras, digital photos are first developed into traditional photos, and then placed in traditional photos. The display in the photo frame is obviously not in line with the trend of today's technology, and it is time-consuming and expensive to develop photos. Therefore, based on the above reasons, the so-called "digital photo frame" has come into the market. This digital photo frame is a kind of built-in photo frame. For consumer products such as liquid crystal displays and card readers, you only need to insert the memory card with digital photos into the card reader of the digital photo frame, and then the digital image can be displayed on the liquid crystal display of the digital photo frame and visualized. It is necessary to manually select the photos to be displayed or set them to be displayed in an automatic cycle. In this way, not only the inconvenience and cost of developing photos can be avoided, but also the dynamic entertainment effect of automatically changing photos is deeply loved by consumers.

Generally, photos are mostly rectangular. When the length of the horizontal side of the photo is greater than the length of the vertical side, it is called a horizontal photo; when the length of the horizontal side of the photo is smaller than the length of the vertical side, it is called a vertical photo. And because it is generally more common to take photos in a horizontal format, when the digital photo frame is manufactured, a horizontal panel is usually made for this purpose. When the displayed photo is a horizontal photo, the digital photo frame can display normally without error. If the displayed photo is a vertical photo, since the general digital photo frame only displays the photo in a horizontal format, only the vertical photo is displayed on the horizontal panel, resulting in black borders on both sides of the photo image, resulting in The entire photo image is too small, causing viewing inconvenience and unsightly appearance. Therefore, it remains to be further resolved.

Contents of the invention

Therefore, the main purpose of the present invention is to provide a digital photo frame with dual display panels, which can selectively display photos on appropriate display panels according to the aspect ratio of the horizontal and vertical lengths of the photos.

The main technical means adopted to achieve the stated purpose is to make the said digital photo frame include:

A photo frame body, the rear side of which can be provided with a support frame;

A microprocessor is located in the photo frame body;

An input-output interface is connected to the microprocessor for connecting with an external storage device;

A multitasking device is located in the photo frame body and connected to the microprocessor;

A first buffer unit and a second buffer unit are arranged in the photo frame body and connected to the multiplexer;

A first display panel and a second display panel are adjacently arranged on the front side of the photo frame body and respectively connected to the first and second buffer units, wherein the first display panel is a straight rectangle, and the second The display panel is a horizontal rectangle.

The digital photo frame of the present invention can automatically select an appropriate display panel to display according to the form of the picture file. When the picture to be displayed is a vertical picture, the microprocessor sends the picture to the first buffer unit, and then the first The display panel displays; when the picture to be displayed is a horizontal picture, the microprocessor sends the picture to the second buffer unit for display by the second display panel.

The present invention can further provide a third buffer unit, which is connected to the microprocessor and can be used as a storage area for storing picture files.

The front side of the photo frame body of the present invention can be further provided with a control panel, which is connected to the microprocessor to control the microprocessor to set the display time interval of the picture file (automatic cycle display), and the display time interval of the picture file As a picture display time information is stored in the third buffer unit; the control panel can also be used to control the microprocessor to rotate a specific picture file, and store the rotation of the picture file as a picture rotation information in the third buffer unit in the buffer unit.

The I/O interface can be a memory card connection interface for connecting to an external storage device in the form of a memory card.

Description of drawings

Figure 1: It is a schematic view of the appearance of a preferred embodiment of the present invention.

Fig. 2: is a schematic block diagram of a preferred embodiment of the present invention.

FIG. 3 is a flow chart of an embodiment of an automatic cycle display for the digital photo frame of the present invention to read picture files from an external storage device.

FIG. 4 is a flow chart of an embodiment of a fixed display image in which the digital photo frame reads the image file from the third buffer unit of the present invention.

Symbol Description

(10) Photo frame body (11) Support frame

(20) Microprocessor

(30) I/O interface (31) External storage device

(40)Multiple tasker

(51)(52)(53) 1st/2nd/3rd buffer unit

(61)(62) 1st/2nd display panel

(70)Control panel

Detailed ways

For a preferred embodiment of the digital photo frame with dual display panels of the present invention, please refer to Fig. 1 and Fig. 2, which includes:

A photo frame body (10) is a rectangular frame body, and a support frame (11) is provided on the rear side thereof;

A microprocessor (20) is located in the photo frame body (10);

An I/O interface (30) is connected to the microprocessor (20) for connecting with an external storage device (31) to read the image files in the internal memory of the external storage device (31). In this implementation In an example, the input/output interface (30) is a memory card connection interface, and the external storage device (31) is a memory card;

A multiplexer (40) is located in the photo frame body (10) and connected to the microprocessor (20);

The first, second and third buffer units (51) (52) (53) are respectively arranged in the photo frame body (10), wherein the first and second buffer units (51) (52) are connected to The multiplexer (40) is controlled by the microprocessor (20) through the multiplexer (40), and the third buffer unit (53) is connected to the microprocessor (20), which can As a storage area for storing picture files, that is, the picture files of the external storage device (31) can be transferred to the third buffer unit (53), so that the digital photo frame of the present invention can still be stored when the external storage device (31) is removed can be displayed normally;

The first and second display panels (61) (62) are adjacently arranged on the front side of the photo frame body (10) and respectively connected to the first and second buffer units (51) (52), wherein the first A display panel (61) is a straight rectangle, and the second display panel (62) is a horizontal rectangle;

A control panel (70) is located on the front side of the photo frame body (10), connected to the microprocessor (20), used to control the microprocessor (20) to set the display time interval of picture files and control the microprocessor (20). The processor (20) rotates the image file by ninety degrees clockwise or counterclockwise, and stores the display time interval of the image file and the rotation of the image file as image display time information and image rotation information respectively in the third in the buffer unit (53).

In addition, the workflow of the digital photo frame includes the following steps:

The microprocessor (20) reads the picture file (100) in the memory of the external storage device (31);

The microprocessor (20) reads the picture display time information (101) from the third buffer unit (53);

The microprocessor (20) searches in the third buffer unit (53) for image rotation information (102) corresponding to the image file being read;

If there is no corresponding information in the third buffer unit, after the microprocessor (20) judges the length ratio (103) of the horizontal side and the vertical side of the picture file, the picture file is sent in the appropriate buffer unit ( 104), if it is a vertical picture, then send it into the first buffer unit (51) of Fig. 2, if it is a horizontal picture, then send it into the second buffer unit (52);

If corresponding information is stored in the third buffer unit, the microprocessor (20) takes out the picture rotation information of the picture file from the third buffer unit (53), and rotates the picture file according to the picture rotation information (105) Afterwards, the picture file is sent in the appropriate buffer unit (104);

Display pictures by the display unit corresponding to the buffer unit, and count the picture display time (106) by the microprocessor (20);

During the image display process, the microprocessor (20) continues to judge whether the user operates the control panel (70) to control the image file to rotate clockwise or counterclockwise by 90 degrees (107);

If the user operates the control panel (70) to turn the picture file, then the picture rotation information is overwritten and stored in the third buffer unit (53) (108), and the picture file is sent to an appropriate buffer unit ( 104);

If the user does not operate the control panel (70) to turn the picture file, then continue to display the picture, and judge whether the picture display time counted by the microprocessor (20) exceeds the picture display time information (109), if so, then reply To the initial state, read the picture file (100) in the internal memory of the external storage device (31). However, although the present invention has been disclosed in the described embodiments, it is not limited to the content mentioned in the described embodiments. Any changes and modifications made without departing from the spirit and scope of the present invention belong to the present invention. scope of protection.

It can be known from the above that the digital photo frame of the present invention has two display panels, and can automatically select an appropriate display panel to display according to the format of the picture file, so that the problem of abnormal shrinkage of the picture image will not occur like a common digital photo frame.

Claims (7)

1. A digital photo frame with double display panels, characterized in that it mainly comprises: A photo frame body; A microprocessor is located in the photo frame body; An input-output interface is connected to the microprocessor for connecting with an external storage device; A multitasking device is located in the photo frame body and connected to the microprocessor; A first buffer unit and a second buffer unit are arranged in the photo frame body and connected to the multiplexer; A first display panel and a second display panel are adjacently arranged on the front side of the photo frame body and respectively connected to the first and second buffer units, wherein the first display panel is a straight rectangle, and the second The display panel is a horizontal rectangle. 2. The digital photo frame with dual display panels according to claim 1, wherein a third buffer unit is further provided in the photo frame body, and the third buffer unit is connected to the microprocessor for receiving and storing Photo archive. 3. The digital photo frame with dual display panels according to claim 2, characterized in that, the front side of the photo frame body is further provided with a control panel connected to the microprocessor for controlling the microprocessor to set the display time of the picture file interval. 4. The digital photo frame with dual display panels as claimed in claim 3, wherein the microprocessor stores the display time interval of the picture file as a picture file display time interval information into the third buffer unit, so that each picture file The display is cyclically switched according to the display time interval. 5. The digital photo frame with dual display panels as claimed in claim 2 or 4, characterized in that, the front side of the photo frame body can be further provided with a control panel connected to the microprocessor to control the microprocessor to force the picture file Rotate ninety degrees. 6. The digital photo frame with dual display panels as claimed in claim 5, wherein the microprocessor stores the rotation of the picture file into the third buffer unit as the rotation information of the picture file. 7 . The digital photo frame with dual display panels as claimed in claim 1 , wherein the input/output interface is a memory card connection interface for connecting to an external storage device in the form of a memory card.

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