Picture display apparatus

• US 7,880,702 B2
• Filed: 05/30/2007
• Issued: 02/01/2011
• Est. Priority Date: 05/30/2006
• Status: Active Grant

• Current Assignee: Funai Electric Co., Ltd.
• Original Assignee: Funai Electric Co., Ltd.
• Inventors: Shibahara, Hiroaki
• Primary Examiner(s): Dharia; Prabodh M
• Application Number:
  US11/755,365
• Publication Number:
  US 20070279356A1
• Time in Patent Office: 1,343 Days
• Field of Search: 345/63, 345/68, 345/77, 345/87, 345/102, 345/156, 345/204, 345/207, 345/82, 345/212, 345/660, 348/565, 386/46, 386/94, 725/31, 349/61, 349/68
• US Class Current: 345/87
• CPC Class Codes: G09G 2300/0456 with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels
• CPC Class Codes: G09G 2320/062 Adjustment of illumination source parameters
• CPC Class Codes: G09G 2330/022 in absence of operation, e.g. no data being entered during a predetermined time
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336

Abstract

A picture display apparatus, which displays a picture on a display section based on a picture signal, includes an input determining section determining whether the picture signal is input, a display determining section determining, based on whether sight/hearing restricting information is added to the picture signal, whether the picture based on the picture signal can be displayed, when the input determining section determines that the picture signal is input, a scramble determining section determining whether the picture signal is scrambled, when the input determining section determines that the picture signal is input, and a display control section lowering a brightness of a backlight of the display section and displaying a predetermined display with hollow characters indicating that the picture cannot be displayed when the picture signal is not input, when the picture based on the picture signal cannot be displayed, and when the picture signal is scrambled.

Claims

1. A picture display apparatus to display a picture on a display section based on a picture signal, comprising:

an input determining section to determine whether the picture signal is input;

a display determining section to determine, based on whether sight/hearing restricting information is added to the picture signal, whether the picture based on the picture signal can be displayed, when the input determining section determines that the picture signal is input;

a scramble determining section to determine whether the picture signal is scrambled, when the input determining section determines that the picture signal is input; and

a display control section to lower a brightness of a backlight of the display section and to display a predetermined display with hollow characters indicating that the picture cannot be displayed when the input determining section determines that the picture signal is not input, when the display determining section determines that the picture based on the picture signal cannot be displayed, and when the scramble determining section determines that the picture signal is scrambled.

2. A picture display apparatus to display a picture based on a picture signal on a display section, comprising:

an input determining section to determine whether the picture signal is input;

a display determining section to determine, based on whether sight/hearing restricting information is added to the picture signal, whether the picture based on the picture signal can be displayed, when the input determining section determines that the picture signal is input; and

a display control section to lower a brightness of a backlight of the display section and to display a predetermined display indicating that the picture cannot be displayed when the display determining section determines that the picture based on the picture signal cannot be displayed.

4. The picture display apparatus according to claim 2, wherein the display control section displays the predetermined display on the display section by means of hollow characters.

3. A picture display apparatus to display a picture based on a picture signal on a display section, comprising:

an input determining section to determine whether the picture signal is input;

a scramble determining section to determine whether the picture signal is scrambled when the input determining section determines that the picture signal is input; and

a display control section to lower a brightness of a backlight of the display section and to display a predetermined display indicating that the picture cannot be displayed when the scramble determining section determines that the picture signal is scrambled.

5. A picture display apparatus to display a picture on a display section based on a picture signal, comprising:

a display section;

a backlight disposed behind the display section;

a storage section to store data corresponding to a message indicating that the picture cannot be displayed;

an input determining section to determine whether the picture signal is input; and

a display control section to completely cut a brightness of the backlight, wherein

the display control section is further adapted for reading the data from the storage section and causing the display section to display the message based on the read data using reflection of natural light from the display section, while the brightness of the backlight is completely cut when the input determining section determines that the picture signal is not input.

6. The picture display apparatus according to claim 5, further comprising:

a display determining section to determine, based on whether sight/hearing restricting information is added to the picture signal, whether the picture based on the picture signal can be displayed, when the input determining section determines that the picture signal is input, wherein

the display control section completely cuts the brightness of the backlight of the display section and displays the message indicating that the picture cannot be displayed when the display determining section determines that the picture based on the picture signal cannot be displayed.

7. The picture display apparatus according to claim 5, further comprising:

a scramble determining section to determine whether the picture signal is scrambled when the input determining section determines that the picture signal is input, wherein

the display control section completely cuts the brightness of the backlight of the display section and displays the message indicating that the picture cannot be displayed when the scramble determining section determines that the picture signal is scrambled.

8. The picture display apparatus according to claim 5, wherein the display control section displays the message with white characters using the reflection of natural light.