Unlock instant, AI-driven research and patent intelligence for your innovation.

On-screen display circuit

一种屏幕显示、电路的技术，应用在彩色信号处理电路、电视、磁路等方向，能够解决观看者不适感等问题，达到避免不适感的效果

Inactive Publication Date: 2006-08-23
SANYO ELECTRIC CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the conventional color halftone display, as a result of changing the RGB balance of the original image signal used as the background, there is a problem that the viewer may feel uncomfortable depending on the color or arrangement of the original image.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • On-screen display circuit
  • On-screen display circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described based on the drawings.

[0022] In a color television system, the sending side converts the image signals of R, G, and B components obtained by the camera from the subject into a composite signal multiplexed by luminance signal Y and chrominance signal, and sends it to the transmission path. A television receiver that has received the multiplexed signal decomposes the signal to return it to an RGB signal, and displays an image on a display unit using the RGB signal obtained through the processing. The television receiver separates R-Y and B-Y by synchronous detection using color pulse directional signals after separating Y and chrominance signals from the composite signal using a filter circuit. Three color difference signals (R-Y), (G-Y), and (B-Y) are generated by matrix operation based on R-Y and B-Y reproduced in this way. Image signals of R, G, and B compon...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a color half tone display for giving a specific hue to a designated region while displaying the original image by a transparent display at the designated region in an on-screen display in a television receiver. A circuit for generating signals of respective colors of RGB by synthesizing a brightness component Y of the original image and chrominance components (R-Y), (G-Y), (B-Y) using an adder 12 is provided with a switch element 10 for restricting an input of the chrominance component to the adder 12 . When an I signal designates a half tone display region, the switch element 10 is brought into OFF state based on the I signal. The color half tone display is carried out by attenuating an output signal of the adder 12 by an amplifier 14 for respective signals of RGB, thereafter, shifting a direct current level of a component in accordance with a hue to be added in RGB by a DC shift circuit 16.

Description

technical field [0001] The present invention relates to a screen display circuit for forming an image superimposed on an image display such as a television (TV) screen. Background technique [0002] For information related to the channel number, menu, input switching, etc. different from the original TV image (original image), the function of superimposing and displaying the image on the screen of the TV image display device is known as onscreen display (onscreen display) ( Hereinafter referred to as OSD). [0003] OSD is realized by superimposing display signals from a microcomputer or the like on RGB signals. In the OSD, a specified area in the screen is displayed in the same color as the background, and the information displayed by the OSD (OSD information) is arranged in the specified area. The image is used as the background to display through. In addition, in this transparent display OSD, an original image in a designated area is displayed in halftone so that OSD in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/445H04N9/77G09G5/00G09G5/02G09G5/377H04N9/74
CPCH04N9/641H02K29/08H02K1/2753H02K3/28
Inventor 休场孝中岛宪一
Owner SANYO ELECTRIC CO LTD