JPH01149618U - - Google Patents

Info

Publication number
JPH01149618U
JPH01149618U JP4573288U JP4573288U JPH01149618U JP H01149618 U JPH01149618 U JP H01149618U JP 4573288 U JP4573288 U JP 4573288U JP 4573288 U JP4573288 U JP 4573288U JP H01149618 U JPH01149618 U JP H01149618U
Authority
JP
Japan
Prior art keywords
liquid crystal
light source
display device
crystal display
turned
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
JP4573288U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP4573288U priority Critical patent/JPH01149618U/ja
Publication of JPH01149618U publication Critical patent/JPH01149618U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal Display Device Control (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による液晶表示装置の一実施例
の回路構成を示すブロツク図、第２図は第１図の
液晶表示装置の駆動回路の動作を示すタイムチヤ
ートである。第３図は従来の液晶表示装置の一例
を示す概略図、第４図は第３図の液晶表示装置の
回路構成を示すブロツク図、第５図は第４図の回
路による動作を示すタイムチヤートである。 １０……液晶表示装置；１１……液晶セル；１
２……ＬＥＤ光源；１３，１４……駆動回路；１
５……遅延回路。 FIG. 1 is a block diagram showing the circuit configuration of an embodiment of the liquid crystal display device according to the present invention, and FIG. 2 is a time chart showing the operation of the driving circuit of the liquid crystal display device of FIG. Fig. 3 is a schematic diagram showing an example of a conventional liquid crystal display device, Fig. 4 is a block diagram showing the circuit configuration of the liquid crystal display device shown in Fig. 3, and Fig. 5 is a time chart showing the operation of the circuit shown in Fig. 4. It is. 10...Liquid crystal display device; 11...Liquid crystal cell; 1
2... LED light source; 13, 14... Drive circuit; 1
5...Delay circuit.

Claims (1)

【実用新案登録請求の範囲】 バツク照明用光源としてＬＥＤ等の応答速度の
速い光源を使用している透過型液晶表示装置にお
いて、 液晶セルの表示用駆動回路に入力されるオンオ
フ信号が、遅延回路を介して光源用駆動回路に入
力されることにより、液晶セルの表示のオンオフ
と光源の点灯、消灯が同じタイミングで行なわれ
ることを特徴とする液晶表示装置。[Scope of Claim for Utility Model Registration] In a transmissive liquid crystal display device that uses a light source with a fast response speed such as an LED as a light source for back lighting, an on/off signal input to a display drive circuit of a liquid crystal cell is transmitted to a delay circuit. What is claimed is: 1. A liquid crystal display device characterized in that the display of a liquid crystal cell is turned on and off and the light source is turned on and off at the same timing by inputting the light to a light source drive circuit through the liquid crystal display device.
JP4573288U 1988-04-06 1988-04-06 Pending JPH01149618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4573288U JPH01149618U (en) 1988-04-06 1988-04-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4573288U JPH01149618U (en) 1988-04-06 1988-04-06

Publications (1)

Publication Number Publication Date
JPH01149618U true JPH01149618U (en) 1989-10-17

Family

ID=31272031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4573288U Pending JPH01149618U (en) 1988-04-06 1988-04-06

Country Status (1)

Country Link
JP (1) JPH01149618U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009037000A (en) * 2007-08-01 2009-02-19 Denso Corp Liquid crystal display

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341127B2 (en) * 1980-03-06 1988-08-16 Matsushita Electric Ind Co Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341127B2 (en) * 1980-03-06 1988-08-16 Matsushita Electric Ind Co Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009037000A (en) * 2007-08-01 2009-02-19 Denso Corp Liquid crystal display

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