JPS54113218A - Display unit - Google Patents

Display unit

Info

Publication number
JPS54113218A
JPS54113218A JP1978878A JP1978878A JPS54113218A JP S54113218 A JPS54113218 A JP S54113218A JP 1978878 A JP1978878 A JP 1978878A JP 1978878 A JP1978878 A JP 1978878A JP S54113218 A JPS54113218 A JP S54113218A
Authority
JP
Japan
Prior art keywords
luminance level
section
information
buffer memory
same
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.)
Granted
Application number
JP1978878A
Other languages
Japanese (ja)
Other versions
JPS6143713B2 (en
Inventor
Mitsuru Ikegami
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1978878A priority Critical patent/JPS54113218A/en
Publication of JPS54113218A publication Critical patent/JPS54113218A/en
Publication of JPS6143713B2 publication Critical patent/JPS6143713B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To make a raster scan-system display high-speed by storing section information, which indicates the same luminance level section, and luminance level information, which indicates a luminance level in the same luminance level section, in a buffer memory for screen refresh.
CONSTITUTION: Section information indicating the same luminance level section and luminance level infomation indicating the absolute value of a luminance level in each section or the relative value to the just preceding section are received from a central processing room and are stored in a buffer memory for screen refresh. Then, section information and luminance level information are read out from buffer memory successively to generate a luminance signal for every section, and this signal is supplied to a display part to display a prescribed variable density pattern. Thus, since a fine variable density pattern can be displayed in a high speed on a basis of section information and luminance level information and the luminance level is designated for every section of the same luminance level, the capacity of the buffer memory can be reduced.
COPYRIGHT: (C)1979,JPO&Japio
JP1978878A 1978-02-24 1978-02-24 Display unit Granted JPS54113218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1978878A JPS54113218A (en) 1978-02-24 1978-02-24 Display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1978878A JPS54113218A (en) 1978-02-24 1978-02-24 Display unit

Publications (2)

Publication Number Publication Date
JPS54113218A true JPS54113218A (en) 1979-09-04
JPS6143713B2 JPS6143713B2 (en) 1986-09-29

Family

ID=12009068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1978878A Granted JPS54113218A (en) 1978-02-24 1978-02-24 Display unit

Country Status (1)

Country Link
JP (1) JPS54113218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0673117U (en) * 1991-07-19 1994-10-11 憲佑 林 tie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0673117U (en) * 1991-07-19 1994-10-11 憲佑 林 tie

Also Published As

Publication number Publication date
JPS6143713B2 (en) 1986-09-29

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