JPH0720766U - Television receiver with sub-screen display function - Google Patents

Abstract

(57) [Summary] [Purpose] In a television receiver having a display with an aspect ratio of 16: 9, a parent screen with an aspect ratio of 4: 3 is displayed.
When a child screen having an aspect ratio of 16: 9 is displayed, the child screen is automatically moved to a position where the information of the parent screen is not lost. [Structure] A circuit for processing a parent screen, which converts an image with an aspect ratio of 4: 3 into an aspect ratio of 16: 9, and when the picture-in-picture function is set, the parent screen is displayed on a CRT display. Aspect ratio conversion circuit 6 that controls the position so as to display the contents side by side, and a child screen processing circuit 1 that creates a child screen signal and synthesizes it with the parent screen.
1 and when the user selects a signal such that the aspect ratio of the parent screen is 4: 3 and the aspect ratio of the child screen is 16: 9, this is determined, and the parent screen having the aspect ratio of 4: 3 is C
The aspect conversion circuit 6 is controlled so as to be displayed at the left end of the RT 16, and the small screen processing circuit 11 is controlled so that a small screen having an aspect ratio of 16: 9 is displayed at the center of the right end of the CRT 16 having a non-image part. CPU2 which controls so that.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a television receiver having a display device having an aspect ratio of 9:16 and having a sub-screen display function.

[0002]

[Prior art]

 Conventionally, a television receiver provided with a display device having an aspect ratio of 9:16 and having a child screen display function has been proposed. As a method of displaying both parent and child screens on these television receivers, Are available as shown in FIG. 2 and FIG.

FIG. 2 shows a case where both the parent and child screens have an image with an aspect ratio of 4: 3. In this case, the parent screen 19 is displayed on the left side of the screen so that the parent and child screens do not overlap. The child screen 21 is displayed on the non-screen portion 20 generated thereby.

Further, FIG. 3 shows a pattern when a child screen 22 having an aspect ratio of 16: 9 is displayed on a parent screen 19 having an aspect ratio of 4: 3.

As described above, when both the parent and child screens have an aspect ratio of 4: 3, the screens can be displayed so that they do not overlap each other. Part of it overlaps with the main screen. Moreover, in general, in television broadcasting, character information is often inserted in the four corners of the screen. For example, in a baseball broadcast, a score is displayed in the upper right of the screen and a count of strike balls, etc. is displayed in the lower left. Therefore, when the child screen is displayed as shown in FIG. 2, there is a problem that such character information is lost.

[0006] Also, although it has been proposed that the user can change the position of the sub-screen, in addition to the operation of displaying the sub-screen, the operation of moving the sub-screen must be performed, which is complicated. Is.

[0007]

[Problems to be solved by the device]

 The present invention is intended to solve the above problems, and is to automatically move a child screen to a position where information of the parent screen is not lost.

[0008]

[Means for Solving the Problems]

 Therefore, the present invention comprises position control means for controlling the display position of the sub-screen and discrimination means for discriminating the aspect ratios of the main screen and the sub-screen, and the position control means is provided in the discrimination means. When it is determined that the aspect ratio of the main screen is 4: 3 and the aspect ratio of the sub screen is 16: 9, the main screen is displayed on the left or right end of the display, and the sub screen is displayed on the right or left center. It is configured to control.

[0009]

[Action]

 Therefore, when the user sets the parent-child screen display mode in which the aspect ratio of the parent screen is 4: 3 and the aspect ratio of the child screen is 16: 9, the child screen is automatically displayed in the end portion with no screen portion. It is displayed in the center in the vertical direction.

[0010]

【Example】

 FIG. 1 shows an embodiment of a television receiver with a small screen display function according to the present invention. In FIG. 1, 1 and 7 are tuner / IF circuits, 4 and 9 are video chroma circuits for processing received video signals, 5 and 10 are sync separation circuits for separating sync signals from video signals, and 2 is described later. CPU for controlling each circuit, 3 and 8 are switches that switch depending on which of the tuner / IF circuit 1 or 7 is displayed as a sub-screen, and 6 is an aspect ratio conversion circuit for processing the main screen However, when the image with the aspect ratio of 4: 3 is converted to the aspect ratio of 16: 9, and when the picture indicator function is set, the position where the main screen should be aligned to the left of the CRT display is displayed. Control. 11 is a child screen processing circuit that creates a child screen signal and synthesizes it with the parent screen, 12 is a vertical oscillation circuit, 13 is a vertical drive output circuit, 14 is a horizontal oscillation circuit, 15 is a horizontal drive output circuit, and 16 is an aspect A 16: 9 ratio CRT, 17 is an RGB matrix, and 18 is an output amplifier.

When displaying the small screen, the CPU 2 determines which of the tuner / IF circuits 1 and 7 to use for the small screen, based on the signal from the remote control transmitter 19 based on the signal from the remote control transmitter 19. -2) to switch. The selected signal enters the video chroma circuit (9) and the sync separation circuit (10), becomes the color difference signal and the sync signal, and then enters the small screen processing circuit 11. The small screen processing circuit 11 outputs a color difference signal in synchronization with the synchronization signal sent from the aspect conversion circuit 6. By mixing this color difference signal with the color difference signal output from the aspect conversion circuit 6, a small screen is displayed.

In such a case, when the user selects a signal so that the aspect ratio of the parent screen is 4: 3 and the aspect ratio of the child screen is 16: 9, the CPU 2 discriminates this and the aspect ratio The aspect conversion circuit 6 is controlled so that the parent screen with a ratio of 4: 3 is displayed on the left end of the CRT 16, and the child screen processing circuit 11 is controlled to display a child screen with an aspect ratio of 16: 9. Display it in the center of the right edge.

FIG. 4 shows a screen display according to the present invention.

[0014]

[Effect of device]

 As described above, according to the present invention, when a display screen with an aspect ratio of 16: 9 and a parent screen with an aspect ratio of 4: 3 and a child screen with an aspect ratio of 16: 9 are simultaneously displayed, information about the parent screen is displayed. Can be minimized and a comfortable picture-in-picture can be realized.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention.

FIG. 2 is a diagram showing a state in which an image with an aspect ratio of 4: 3 is displayed on both a main screen and a child screen.

FIG. 3 is a diagram showing a state in which an image with an aspect ratio of 4: 3 is displayed as a parent screen and an image with an aspect ratio of 16: 9 is displayed as a child screen.

FIG. 4 is a view showing a screen display according to the present invention.

[Explanation of symbols]

 2 CPU 6 Aspect ratio conversion circuit 11 Sub-screen processing circuit

Claims (1)

[Scope of utility model registration request] 1. In a television receiver having a display device having an aspect ratio of 16: 9, a child screen processing circuit for displaying another screen on a part of the screen and a position control for controlling the display position of the child screen. The position control means has an aspect ratio of the parent screen of 4: 3 and an aspect ratio of the child screen of 16: 9. When it is determined that the main screen is displayed on the left or right end of the display and the sub screen is displayed on the right or left center, the television receiver with a sub screen display function is characterized.