JPS55158568A - Liquid crystal display panel measuring apparatus - Google Patents

Liquid crystal display panel measuring apparatus

Info

Publication number
JPS55158568A
JPS55158568A JP6717579A JP6717579A JPS55158568A JP S55158568 A JPS55158568 A JP S55158568A JP 6717579 A JP6717579 A JP 6717579A JP 6717579 A JP6717579 A JP 6717579A JP S55158568 A JPS55158568 A JP S55158568A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal display
display panel
driving
response speed
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
JP6717579A
Other languages
Japanese (ja)
Inventor
Kazuo Izumida
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP6717579A priority Critical patent/JPS55158568A/en
Publication of JPS55158568A publication Critical patent/JPS55158568A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To measure the response speed simply according to various conditions by driving the liquid crystal display panel with desired frequency and voltage while the driving is started or stopped at any time.
CONSTITUTION: When measuring the response speed of the liquid crystal display panel 6, the frequency for driving is preset with a selector switch 12 while the drive voltage is set with the variable resistance 14. Subsequently, with the switch 20 closed, the driving of the liquid crystal display panel starts. If the time is measured until the display contrast of the liquid crystal display reaches the given value from the start, the response speed can be determined. When the switch 19 is closed while the liquid crystal display panel 6 is being driven and the time is measured until the display contrast reaches the given value from this point, the response speed at the cancelation of the display can be determined.
COPYRIGHT: (C)1980,JPO&Japio
JP6717579A 1979-05-29 1979-05-29 Liquid crystal display panel measuring apparatus Pending JPS55158568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6717579A JPS55158568A (en) 1979-05-29 1979-05-29 Liquid crystal display panel measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6717579A JPS55158568A (en) 1979-05-29 1979-05-29 Liquid crystal display panel measuring apparatus

Publications (1)

Publication Number Publication Date
JPS55158568A true JPS55158568A (en) 1980-12-10

Family

ID=13337284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6717579A Pending JPS55158568A (en) 1979-05-29 1979-05-29 Liquid crystal display panel measuring apparatus

Country Status (1)

Country Link
JP (1) JPS55158568A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128796A (en) * 1974-09-04 1976-03-11 Sharp Kk Ekishohyojisochi no kudohoho
JPS52120793A (en) * 1976-04-05 1977-10-11 Casio Comput Co Ltd Liquid crystal display unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128796A (en) * 1974-09-04 1976-03-11 Sharp Kk Ekishohyojisochi no kudohoho
JPS52120793A (en) * 1976-04-05 1977-10-11 Casio Comput Co Ltd Liquid crystal display unit

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