JPS647867A - Display system for liquid crystal television - Google Patents

Display system for liquid crystal television

Info

Publication number
JPS647867A
JPS647867A JP16295887A JP16295887A JPS647867A JP S647867 A JPS647867 A JP S647867A JP 16295887 A JP16295887 A JP 16295887A JP 16295887 A JP16295887 A JP 16295887A JP S647867 A JPS647867 A JP S647867A
Authority
JP
Japan
Prior art keywords
light source
light
liquid crystal
synchronizing signal
brightness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16295887A
Other languages
Japanese (ja)
Inventor
Kazuteru Hanaoka
Kazuo Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu General Ltd
Original Assignee
Fujitsu General Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu General Ltd filed Critical Fujitsu General Ltd
Priority to JP16295887A priority Critical patent/JPS647867A/en
Publication of JPS647867A publication Critical patent/JPS647867A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE:To improve the picture quality on a television screen and to move easily watch the picture by changing the intensity of the brightness of a light source with the timing of a frame synchronizing signal or of a field synchronizing signal for a prescribed time. CONSTITUTION:When a power source is turned on, in a light source driving circuit 4, a light source 1e is controlled so as to be the brightness of the radiating light B1 (<B). In a tuner device 2, when a prescribed channel is selected and a frame synchronizing signal is outputted, from the light source driving circuit 4, control is executed by the timing of the frame synchronizing signal, so that the light source 1e is controlled so as to be the brightness of the radiating light B (>B) for a prescribed time, for example, for about a half of a frame time extent. Namely, to the liquid crystal of a liquid crystal display device 1, at a time point of constituting a television picture, an extremely bright light B (>B1) is radiated, and during the rewriting, the light of the light source 1e is recognized as a dark light B1 (<B). Thus, by utilizing the characteristic of human eyes, a liquid crystal television picture is more clearly viewed.
JP16295887A 1987-06-30 1987-06-30 Display system for liquid crystal television Pending JPS647867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16295887A JPS647867A (en) 1987-06-30 1987-06-30 Display system for liquid crystal television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16295887A JPS647867A (en) 1987-06-30 1987-06-30 Display system for liquid crystal television

Publications (1)

Publication Number Publication Date
JPS647867A true JPS647867A (en) 1989-01-11

Family

ID=15764510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16295887A Pending JPS647867A (en) 1987-06-30 1987-06-30 Display system for liquid crystal television

Country Status (1)

Country Link
JP (1) JPS647867A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0730371A2 (en) * 1995-02-28 1996-09-04 Sony Corporation Liquid crystal display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0730371A2 (en) * 1995-02-28 1996-09-04 Sony Corporation Liquid crystal display device
EP0730371A3 (en) * 1995-02-28 1998-09-16 Sony Corporation Liquid crystal display device

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