JP2003309780A - Picture display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display PIP (picture in picture) of a free size at a free position. <P>SOLUTION: The PIP of the free size at a free position is realized by allowing a user to press the PIP size changing button or up/down, right/left and oblique buttons of a remote controller by a PIP circuit comprising a compression block 3, a memory block 6 and a composing block 11. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television having a PIP (Picture in Picture) display function.

[0002]

2. Description of the Related Art A conventional PIP (Picture-in-Picture) can only be fixed in at most three sizes when the PIP size change button of the remote controller is pressed as shown in FIG. As for the position, as shown in FIG. 5, it can move only in the four corners of the screen, and as shown in FIG. 6, it can move only in the horizontal and vertical directions.

[0003]

As described above, the conventional technology has limitations on the size and position of the PIP (Picture in Picture). An object of the present invention is to allow a user to move to any size and any position.

[0004]

In order to solve the above problems, in the present invention, a child screen signal (hereinafter referred to as "child signal").
PIP which is composed of a compression block for compressing, a memory block for writing the compressed child signal, and a synthesis block for determining the read position of the written child signal with respect to the parent signal.
The circuit allows the user to display the PIP at any size and position by pressing the PIP size change button or up / down / left / right / diagonal buttons on the remote controller.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention determines a compression block for compressing a child screen signal, a memory block for writing the compressed child screen signal, and a read position of the written child signal with respect to the parent signal. A PIP circuit composed of a composite block allows the user to select P
The image display device is characterized in that the sub-screen can be adjusted to any size by pressing the IP size change button.

The invention according to claim 2 of the present invention comprises a compression block for compressing a child screen signal, a memory block for writing the compressed child screen signal, and a synthesis block for deciding a read position of the written child signal with respect to the parent signal. The PIP circuit allows the user to move the remote controller up and down, left and right,
The image display device is characterized in that a sub-screen can be displayed at any position by pressing an oblique button.

The invention according to claim 3 of the present invention comprises a compression block for compressing the child screen signal, a memory block for writing the compressed child screen signal, and a synthesizing block for determining the read position of the written child signal with respect to the parent signal. The image display device characterized in that the user can adjust and display the small screen at any size and position by pressing the PIP size change button or the up / down / left / right / diagonal buttons of the remote controller by the PIP circuit. Is.

The embodiment of the present invention will be described below with reference to FIG.
3 to FIG. 3 will be described.

(Embodiment 1) In the compression block 3 of FIG. 1, compression is performed so that the child signal screen 14 becomes smaller than the parent signal screen 13 like the television screen image 12 at the left end of FIG. The compressed signal is then written to area 1 of memory block 6 through memory write path 1. As a supplement, there is no problem even if data is written in the area 2 of the memory block 6 through the memory write path 2.

Next, the child signal 2 read from the memory read path 1 from the area 1 of the memory block 6 is determined by the synthesizing block 11 in which position, horizontal or vertical, of the parent signal screen section 13 is to be synthesized. Part 14 or PIP is displayed.

When the size of the PIP is changed by the remote controller in this state, the child signal 2 after the size is changed by the compression block 3 is written in advance from the memory write path 2 to the area 2 of the memory block 6, and the combination block 11 is used. By switching the data to be read by the memory read path 1 to the memory read path 2, the size can be changed without disturbing the PIP screen.

(Second Embodiment) In the compression block 3 of FIG. 1, compression is performed so that the child signal screen 14 becomes smaller than the parent signal screen 13 like the television screen image 12 at the left end of FIG. The compressed signal is then written to area 1 of memory block 6 through memory write path 1. As a supplement, there is no problem even if data is written in the area 2 of the memory block 6 through the memory write path 2.

Next, the child signal 2 read from the memory reading path 1 from the area 1 of the memory block 6 is determined by the synthesizing block 11 in which position, horizontal or vertical, of the parent signal screen portion 13 is to be synthesized. Part 14 or PIP is displayed. In this state, when changing the position of the PIP with the remote controller, in the synthesizing block 11, the horizontal direction of the master signal screen portion 13,
By changing the vertical position, you can change the position vertically, horizontally, or diagonally.

(Embodiment 3) Embodiment 3 is a combination of Embodiment 1 and Embodiment 2 described above, and the size and position can be changed.

[0015]

As described above, according to the present invention, when the user presses the PIP size change button or the up, down, left, right, or diagonal buttons of the remote controller, the screen P can be set to any size and position.
The effect that IP can be realized is obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a PIP circuit of the present invention.

FIG. 2 is a diagram showing an operation when the PIP size is changed according to the present invention.

FIG. 3 is a diagram showing an operation at the time of moving a PIP according to the present invention.

FIG. 4 is a diagram showing an operation when the PIP size is changed in the related art.

FIG. 5 is a diagram showing an operation when moving a conventional PIP.

FIG. 6 is a diagram showing an operation during conventional PIP movement.

[Explanation of symbols]

1 parent signal 2 child signals 3 compressed blocks 4 memory writing 5 memory writing 6 memory blocks 7 memory area 1 8 memory area 2 9 memory read 10 memory read 11 Parent-child signal synthesis 12 TV screen 13 Parent signal screen 14 Child signal screen 15 Minimum size of child screen on the upper left of the screen 16 Maximum size of the sub screen at the top left of the screen 17 Maximum size of child screen in the upper right of the screen 18 child screen minimum size at the top right of the screen 19 Maximum size of child screen at the bottom left of the screen 20 child screen minimum size at the bottom left of the screen 21 Maximum size of the sub screen at the bottom right of the screen 22 Minimum size of child screen at the bottom right of the screen 23 Remote control 24 Remote control signal 25 Sub screen movement direction (top) 26 Moving direction of sub screen (upper right) 27 Movement direction of sub screen (right) 28 Movement direction of sub screen (lower right) 29 Moving direction of child screen (bottom) 30 Sub-screen movement direction (lower left) 31 Moving direction of sub screen (left) 32 Sub-screen movement direction (upper left)

Claims (3)

[Claims] 1. A sub-screen signal (hereinafter referred to as "sub-signal").
A PIP (picture-in-picture) circuit composed of a compression block for compressing, a memory block for writing the compressed child signal, and a synthesis block for determining a read position of the child signal written in the memory block with respect to a parent signal. An image display device characterized by the above. 2. A P comprising a compression block for compressing a child signal, a memory block for writing the compressed child signal, and a synthesizing block for determining a read position of the child signal written in the memory block with respect to a parent signal.
An image display device having an IP circuit. 3. A compression block for compressing a sub-picture signal,
An image display device comprising a PIP circuit including a memory block for writing the compressed child screen signal and a synthesis block for determining a read position of the child signal written in the memory block with respect to a parent signal.