JPH0797846B2 - Display device - Google Patents

Display device

Info

Publication number
JPH0797846B2
JPH0797846B2 JP60078531A JP7853185A JPH0797846B2 JP H0797846 B2 JPH0797846 B2 JP H0797846B2 JP 60078531 A JP60078531 A JP 60078531A JP 7853185 A JP7853185 A JP 7853185A JP H0797846 B2 JPH0797846 B2 JP H0797846B2
Authority
JP
Japan
Prior art keywords
signal
scanning
signals
sequential
progressive
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.)
Expired - Fee Related
Application number
JP60078531A
Other languages
Japanese (ja)
Other versions
JPS61238182A (en
Inventor
徹男 坂井
宏 村上
▲隆▼一 金子
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.)
Japan Broadcasting Corp
Original Assignee
Japan Broadcasting Corp
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 Japan Broadcasting Corp filed Critical Japan Broadcasting Corp
Priority to JP60078531A priority Critical patent/JPH0797846B2/en
Publication of JPS61238182A publication Critical patent/JPS61238182A/en
Publication of JPH0797846B2 publication Critical patent/JPH0797846B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Control Of Gas Discharge Display Tubes (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

PURPOSE:To use a low-priced device and to decrease the power consumption by converting successively the usual jumping scanning type television signal to the scanning signal when the picture displaying is executed by the row column type displaying panel, making into plural parallel signals and taking out simultaneously at such a time, processing these signals and driving the displaying panel. CONSTITUTION:In the image receiver which converts successively a jumping scanning signal into the scanning signal, supplies successively the scanning signal to the row column type displaying panel and displays the picture, the signal equivalent to plural successive scanning lines is almost simultaneously and in parallel is removed from the successive scanning converting part, guided to the memory device composed of plural memory blocks, and as plural simultaneous signals, guided from the memory device to the successive simultaneous converting part of the row column type displaying panel. At the transmitting side, for example, the signal is thinned for about half minute, further, the time for four fields of the jumping scanning is taken, the signal of one frame is sent, and at the receiving side, respectively different inserting systems are used in accordance with the static picture and the dynamic picture, and the lacked signal is reproduce.

Description

【発明の詳細な説明】 (技術分野) この発明は気体放電表示パネルのような行列型パネルを
テレビジョン画像表示に用いる表示装置に関わるもので
ある。
Description: TECHNICAL FIELD The present invention relates to a display device using a matrix type panel such as a gas discharge display panel for displaying a television image.

(従来技術と問題点) 行列型パネルを画像表示に用いるテレビジョン受像機で
は、画像ピッチを十分小さくすることが困難である。す
なわち、ピッチを小さくすると行列の電極間の容量が増
加して信号の混だくが起ったり、発光効率が低下する。
また駆動回路の数も増加するから費用も増大する。従っ
て行列型パネルでは、最小の画素(セル)数で最良の画
質を得るような、セルの色配列や駆動方法を採る必要が
ある。特に高解像度を要求される高品位テレビジョンで
は、その方法が重要になる。
(Prior Art and Problems) In a television receiver using a matrix type panel for image display, it is difficult to make the image pitch sufficiently small. That is, when the pitch is reduced, the capacitance between the electrodes of the matrix increases, signal mixing occurs, and the light emission efficiency decreases.
Further, the number of drive circuits also increases, so that the cost also increases. Therefore, in the matrix type panel, it is necessary to adopt the color arrangement of the cells and the driving method so as to obtain the best image quality with the minimum number of pixels (cells). Especially in high-definition television which requires high resolution, the method becomes important.

通常のテレビジョン(高品位テレビジョンを含め)で
は、2:1の飛越走査が行なわれている。これは、陰極線
管(CRT)に表示する場合のフリッカの減少に用いる便
宜的手段で、そのために1000本の走査線があっても、順
次走査にしたとき600本分にしか相当しないという実験
結果がでている。そのためCRTにおいても、順次走査の
方法が最近では採られ始めた。従ってセル数を最小にし
たい行列型パネルでは、順次走査は必ず採用すべき方式
である。
Normal television (including high-definition television) has a 2: 1 interlace scan. This is a convenient method used to reduce flicker when displaying on a cathode ray tube (CRT). Therefore, even if there are 1000 scanning lines, it is equivalent to 600 when scanning sequentially. Is out. For this reason, the progressive scanning method has recently begun to be adopted for CRTs. Therefore, in a matrix type panel in which the number of cells is desired to be the minimum, sequential scanning is a method that must be adopted.

しかし、飛越し走査の信号を順次走査の信号に変換する
と、信号の帯域幅が2倍に上ってしまう。そのため、信
号処理回路で使用できるデバイスが制限を受けたり、一
般に消費電力も上昇する。
However, if the interlaced scanning signal is converted into the progressive scanning signal, the bandwidth of the signal is doubled. Therefore, the devices that can be used in the signal processing circuit are limited, and the power consumption is generally increased.

(発明の要旨) この発明の目的は、行列型表示パネル、特に、そのパネ
ルの各セルが2値のメモリ機能を有しかつ中間調表示を
行うためにサブフィールド法で画像表示を行なうに当
り、順次信号に変換する際パネル一画面分の順次走査信
号を複数の並列信号にして、前記パネルに表示するため
の変換装置の記憶回路に導入することにより、従来の1
画面分全部をそのまま記憶回路に導入していたのに代え
て、安価なデバイスを用い、消費電力も軽減しようとす
るものである。
(Summary of the Invention) An object of the present invention is to provide an image display by a subfield method in order to display a matrix type display panel, in particular, each cell of the panel has a binary memory function and to perform halftone display. When converting into a sequential signal, a sequential scanning signal for one screen of the panel is converted into a plurality of parallel signals, which are introduced into a memory circuit of a conversion device for displaying on the panel.
Instead of introducing the entire screen as it is into the memory circuit, an inexpensive device is used to reduce power consumption.

すなわち本発明表示装置は、飛越走査信号を順次走査信
号に変換し、その順次走査信号を各セルが2値のメモリ
機能を有する行列型表示パネルにサブフィールド法で供
給して中間調の画像表示を行う表示装置において、該装
置は、前記飛越走査信号について少なくとも2本以上の
順次走査線に相当する信号がほぼ同時に並列に取り出さ
れた形態の順次走査信号に変換する順次走査変換手段
と、前記行列型表示パネルの表示画面を少なくとも水平
方向に分割してなる各部分にそれぞれ対応する複数個の
記憶ブロックを有して前記順次走査変換手段から取り出
された前記順次走査信号を少なくとも水平走査線の各部
分に対応して前記記憶ブロックごとにそれぞれ分割記憶
する記憶手段と、該記憶手段から読み出された前記記憶
ブロックごとの順次走査信号をそれぞれ同時信号に変換
する複数個の順次−同時変換手段とを具え、前記記憶手
段は前記複数個の記憶ブロックを有して前記順次走査変
換手段からの前記順次走査信号を分割記憶していること
に基づいて、前記記憶手段から読み出される前記順次走
査信号の速度を遅くするとともに、1フレームの走査期
間に複数の2値サブフィールド信号が得られるように構
成したことを特徴とする。
That is, the display device of the present invention converts an interlaced scanning signal into a progressive scanning signal and supplies the progressive scanning signal to a matrix type display panel having a binary memory function in each cell by a subfield method to display a halftone image. In the display device for performing the above, the device includes a progressive scan conversion means for converting the interlaced scan signal into a progressive scan signal in a form in which signals corresponding to at least two sequential scan lines are taken out in parallel at substantially the same time, The display screen of the matrix-type display panel has a plurality of storage blocks respectively corresponding to respective portions formed by dividing the display screen in the horizontal direction at least, and the sequential scanning signals extracted from the sequential scanning conversion means are supplied to at least horizontal scanning lines Storage means for dividing and storing each storage block corresponding to each part, and sequentially for each storage block read from the storage means A plurality of sequential-simultaneous conversion means for respectively converting the scanning signals into simultaneous signals, wherein the storage means has the plurality of storage blocks and divides and stores the sequential scan signals from the sequential scan conversion means. Based on this, the speed of the sequential scanning signal read from the storage means is slowed down, and a plurality of binary subfield signals are obtained during the scanning period of one frame.

(実施例) 第1図に本発明一実施例構成のブロック線図を示す。受
信機または順次走査変換部(Sequential Scanning Conv
erter)には通常のテレビジョン信号、例えばNTSC信号
やMUSE(Multiple Sub−Nyquist Sampling Encoding)
方式に代表される高品位テレビジョンの伝送用信号を加
え、その信号を順次走査信号に変換する。通常の飛越し
走査テレビジョン信号を順次走査信号に変換するには、
静止部分ではフレーム間内挿、動画像部分ではフィール
ド間内挿で欠落信号を作るが、この技術は周知であるの
で詳細な説明は省略する。MUSE方式受信機では、これに
近い方法で間引いた信号を再生しているので順次走査へ
の変換は比較的簡単に行なえる。すなわちMUSE方式は本
願人が開発した高品位テレビジョン信号の伝送方式で、
30MHzに近いベースバンドを持つ高品位テレビジョンの
信号を約8MHzの帯域幅にまで圧縮して伝送している。従
って送信側では例えば信号を約半分間引きし、さらに飛
越走査の4フィールド分の時間をかけて1フレームの信
号を送り、受信側では静止画像、動画像に応じてそれぞ
れ異なった内挿方式を使用して欠落信号を再生している
(参考文献,二宮:NHK技研月報,Vol.27,No.7,p.19(198
4))。
(Embodiment) FIG. 1 shows a block diagram of the construction of an embodiment of the present invention. Receiver or Sequential Scanning Conv
normal television signals, such as NTSC signals and MUSE (Multiple Sub-Nyquist Sampling Encoding).
A signal for transmission of a high-definition television represented by the system is added, and the signal is sequentially converted into a scanning signal. To convert a normal interlaced scanning television signal to a progressive scanning signal,
Although a missing signal is generated by inter-frame interpolation in the still portion and inter-field interpolation in the moving image portion, this technique is well known and detailed description thereof will be omitted. The MUSE receiver reproduces the signals thinned out by a method similar to this, so conversion to progressive scanning can be performed relatively easily. That is, the MUSE system is a transmission system for high-definition television signals developed by the applicant,
High-definition television signals with a baseband close to 30MHz are compressed to a bandwidth of about 8MHz before transmission. Therefore, on the transmitting side, for example, the signal is subtracted for about half a minute, and a 1-frame signal is sent over the time of four fields of interlaced scanning. On the receiving side, different interpolation methods are used depending on the still image and the moving image. To reproduce the missing signal (Reference, Ninomiya: NHK STRL Monthly Report, Vol.27, No.7, p.19 (198
Four)).

順次信号に変換する際、第2図に示すように、輝度信
号、2種類の色差信号をそれぞれ並列にY1,Y2、W1,W2
N1,N2のように取り出す。第2図で2i+1,2(i+1)
(i=0,1,2…)は走査線の番号で(2i+1)は奇数ラ
イン、2(i+1)は偶数ラインである。また第2図で
はアナログ信号のような表示をしてあるが、通常はディ
ジタル信号であって各信号はさらに8ビット程度の並列
信号になっている。
When converting into a sequential signal, as shown in FIG. 2, a luminance signal and two kinds of color difference signals are arranged in parallel in Y 1 , Y 2 , W 1 , W 2 ,
Take out like N 1 , N 2 . 2i + 1,2 (i + 1) in Fig. 2
(I = 0,1,2 ...) is a scanning line number, (2i + 1) is an odd line, and 2 (i + 1) is an even line. Further, in FIG. 2, a display like an analog signal is shown, but it is usually a digital signal and each signal is a parallel signal of about 8 bits.

これらの信号を信号処理変換部Fにおいて表示パネルDP
のセル構造に合わせて表示すべき信号D1,D2に変換す
る。表示パネルDPのセル色配置は例えば、1行目はGRGR
…,2行目はBGBG…のようになっているものとする。信号
処理変換部Fは入力信号から表示する信号の近傍部分を
取り入れて作る一種の2次元フィルタで、一番単純には
その表示点に対応する、または一番近い信号から行列計
算を用いてR,G,Bの値を得る装置である。
These signals are displayed on the display panel DP in the signal processing converter F.
The signals D 1 and D 2 to be displayed are converted in accordance with the cell structure of. The cell color arrangement of the display panel DP is, for example, GRGR in the first row.
… The second line is supposed to be BGBG…. The signal processing conversion unit F is a kind of two-dimensional filter made by taking in the neighborhood of the signal to be displayed from the input signal, and the simplest is to use the matrix calculation from the nearest signal corresponding to the display point or the closest signal to R A device for obtaining the values of G, B.

例えば信号D1,D2は表示パネルDPの左半分と右半分とを
受持つようになっていて、それらは記憶部M1,M2へ導か
れる。表示パネルDPは2値のメモリパネルであり、1フ
レームの走査は例えば8つのサブフィールドから構成さ
れる。(村上 宏「メモリー機能をもった放電表示パネ
ルによるカラーテレビ表示」電子通信学会技術研究報
告、IE81−59、PP15〜20、1981年9月25日のうち、特に
「5.テレビ画像の表示方法」(PP18〜19)参照)第2図
には、記憶部M1,M2の出力信号D01,D02としてそれに対応
した最上位ビット(MSB)フィールドの一部を示してあ
る。
For example, the signals D 1 and D 2 are adapted to handle the left and right halves of the display panel DP, which are guided to the storage units M 1 and M 2 . The display panel DP is a binary memory panel, and scanning of one frame is composed of, for example, eight subfields. (Hiroshi Murakami, "Color Television Display Using a Discharge Display Panel with Memory Function" IEICE Technical Report IE81-59, PP15-20, September 25, 1981, especially "5. Display method of TV image" FIG. 2 shows a part of the most significant bit (MSB) field corresponding to the output signals D 01 and D 02 of the storage units M 1 and M 2 in FIG.

信号D01は順次同時変換部(回路)S−P1(シリアル−
パラレル1)に導かれ、信号D01は順次同時変換部S−P
2に導かれる。順次同時変換部S−Pは入力の順次信号D
0を表示パネルの列数nの1/2の数だけの並列信号に変換
し、S−P1,S−P2合わせてn列の電極へ同時にアドレス
し、垂直走査部VSで駆動される行電極を特定の1行へ書
き込みなどの信号を供給し画像を表示させる。
The signal D 01 is a sequential simultaneous conversion unit (circuit) S-P1 (serial-
In parallel 1), the signal D 01 is sequentially converted into the simultaneous conversion unit SP.
Guided by 2. The sequential and simultaneous conversion section SP receives the input sequential signal D
Row electrodes driven by the vertical scanning unit VS by converting 0 into parallel signals equal to 1/2 of the number n of columns of the display panel and simultaneously addressing electrodes of n columns including S-P1 and S-P2. Is supplied to a specific one line to display an image.

この第1図の構成では、Y1,Y2やD1,D2のように常に取り
扱う信号を並列にしているので帯域が半分ですみ、たと
えばCMOS(相補型MOS)などの低消費電力、低速度デバ
イスが使用可能となる。
In the configuration shown in FIG. 1 , since the signals that are always handled such as Y 1 and Y 2 and D 1 and D 2 are in parallel, the bandwidth is half, and low power consumption such as CMOS (complementary MOS), Low speed devices are available.

次に一般的に言って順次走査変換部SSCのY,W,Nなどの同
時出力信号は2〜10本程度がよく、信号処理変換部Fの
出力信号Dは2〜50本、メモリMの出力D0は5〜50本が
適当である。また表示パネルDPが複数(m)行同時駆動
の場合は、それに応じてさらにメモリの出力信号D0は分
割数を増加させてもよい。
Generally speaking, the simultaneous output signal of Y, W, N, etc. of the progressive scan conversion unit SSC is preferably about 2 to 10, the output signal D of the signal processing conversion unit F is 2 to 50 lines, and the output signal D of the memory M is A suitable output D 0 is 5 to 50 lines. When the display panel DP is simultaneously driven in a plurality of (m) rows, the output signal D 0 of the memory may further increase the number of divisions accordingly.

他の実施例として第3図のような構成を示す。パネルM1
は順次同時変換部SP1〜2を担当し、メモリM2は順次同
時変換部SP3〜5を担当する例である。
As another embodiment, a structure as shown in FIG. 3 is shown. Panel M 1
Sequentially charge the simultaneous conversion unit SP1~2, the memory M 2 is an example in charge sequentially the simultaneous conversion unit SP3~5.

順次走査変換部SSCの出力信号Yの精細度に比し、より
高い表示パネルDPの精細度が要求される場合、第1図の
構成では冗長な信号を記憶部Mに取り入れなければなら
ない。従って記憶部Mの容量は必要以上に大きくなる。
このときは第4図に示すような構成にする必要がある。
すなわち順次走査変換部SSCの出力をまず記憶部Mへ送
り、その出力で画素の配列に応じた信号への変換を信号
処理変換部Fで行ない、必要な制御信号を順次同時変換
部S−Pへ送り出すようにする。この時信号処理変換部
Fでは、ある画素の信号はその近傍の信号から作るの
で、例えば記憶のブロックを画面上6個に分割する際は
第5図に示すように、斜線をほどこした部分を重複して
各記憶ブロックに取り入れておく必要がある。この時信
号処理変換部Fは一種の2次元フィルタとなる。これを
2行同時駆動パネルに応用した構成例を第6図に示す。
When a higher definition of the display panel DP is required as compared with the definition of the output signal Y of the progressive scan conversion unit SSC, a redundant signal must be taken into the storage unit M in the configuration of FIG. Therefore, the capacity of the storage unit M becomes larger than necessary.
At this time, it is necessary to have a configuration as shown in FIG.
That is, the output of the sequential scanning conversion unit SSC is first sent to the storage unit M, and the output thereof is converted into a signal corresponding to the pixel array by the signal processing conversion unit F, and the necessary control signals are sequentially converted into the simultaneous conversion unit SP. I will send it to. At this time, in the signal processing conversion unit F, the signal of a certain pixel is created from the signal in the vicinity thereof, so when dividing a memory block into six on the screen, for example, as shown in FIG. It is necessary to duplicate and incorporate in each memory block. At this time, the signal processing conversion unit F becomes a kind of two-dimensional filter. FIG. 6 shows a configuration example in which this is applied to a two-row simultaneous drive panel.

使用する信号の形態は、輝度信号(Y)、広帯域色信号
(I)、狭帯域色信号(Q)の形態、輝度信号(Y)、
2つの色差信号(R−Y,G−Y)の形態のほか、画像が
再現できる3つの独立な信号であれば何でもよい。
The types of signals used are: luminance signal (Y), wideband color signal (I), narrowband color signal (Q), luminance signal (Y),
In addition to the form of two color difference signals (RY, GY), any three independent signals that can reproduce an image may be used.

また表示パネルの形態としては、放電形パネルの他に、
EL(エレクトロルミネセンス)、発光ダイオード、液晶
など種々のものに適用できる。また、表示パネルが2値
のメモリパネルであり、そのパネルにサブフィールド法
で信号を供給しているかぎり、1フレーム間のほとんど
を発光可能な周知の駆動方法にも適用できる。
Further, as the form of the display panel, in addition to the discharge type panel,
It can be applied to various things such as EL (electroluminescence), light emitting diode, and liquid crystal. Further, as long as the display panel is a binary memory panel and a signal is supplied to the panel by the subfield method, it can be applied to a well-known driving method capable of emitting most of light in one frame.

(発明の効果) 以上記述してきたように本発明は、パネルの各セルが2
値のメモリ機能を有する行列型表示パネルを用い、サブ
フィールド法により中間調の画像表示を行なうに当り、
通常の飛越し走査形式のテレビジョン信号を順次走査信
号に変換し、この時同時に複数の並列信号にして取り出
し、これら信号を処理して表示パネルを駆動するため、
信号帯域をせばめる(信号処理速度の低速度化)ことが
でき、従って安価なデバイスの使用と、さらに消費電力
も軽減することができる。
(Effect of the Invention) As described above, the present invention has two cells for each cell.
When using the matrix display panel with the value memory function to display halftone images by the subfield method,
In order to drive the display panel by converting the normal interlaced scanning type television signal into a sequential scanning signal and taking out a plurality of parallel signals at the same time and processing these signals.
The signal band can be narrowed (the signal processing speed can be reduced), so that the use of an inexpensive device and the power consumption can be reduced.

また、本発明においては、サブフィールド法により行列
型表示パネルに信号を供給するに際して必要(各ビット
信号を1フィールド期間分にわたって読み出すため)な
1フィールド分の信号記憶手段として複数個の記憶ブロ
ックに分割した信号記憶手段を併用することができるの
で、本発明による回路規模の増加は殆んどない。
Further, in the present invention, a plurality of storage blocks are provided as signal storage means for one field which is necessary (in order to read each bit signal for one field period) when supplying signals to the matrix display panel by the subfield method. Since the divided signal storage means can be used together, there is almost no increase in the circuit scale according to the present invention.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明一実施例の構成を示すブロック線図、 第2図は第1図構成の実施例における各部出力信号の時
間軸の態様を説明するための図、 第3図はパネル駆動の方法を示す他の実施例の構成図、 第4図は本発明で高精細度表示パネルを駆動する場合の
構成を説明する概略図、 第5図は記憶部を6ブロックにした本発明実施例におけ
る、画面上の信号取り入れを説明するための概略図、 第6図はその構成例である。 SSC……順次走査変換部 Y1,Y2……奇数ライン,偶数ラインの輝度信号 W1,W2……奇数ライン,偶数ラインの色差信号(例えば
R−Y) N1,N2……奇数ライン,偶数ラインの色差信号(例えば
G−Y) F……信号処理変換部 D1,D2……変換部Fにより処理された出力信号 M1,M2……記憶部 D01,D02……記憶部よりの出力信号 S−P1,S−P2……順次同時変換部 VS……垂直走査部 DP……表示パネル R,G,B……それぞれ赤,緑,青信号
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram for explaining the mode of the time axis of the output signal of each part in the embodiment of the configuration of FIG. 1, and FIG. 3 is a panel drive. FIG. 4 is a schematic diagram of another embodiment showing the method of FIG. 4, FIG. 4 is a schematic diagram for explaining the configuration in the case of driving a high definition display panel according to the present invention, and FIG. FIG. 6 is a schematic diagram for explaining signal introduction on the screen in the example, and FIG. 6 is a configuration example thereof. SSC …… Sequential scan conversion unit Y 1 , Y 2 …… Odd and even line luminance signals W 1 , W 2 …… Odd and even line color difference signals (eg RY) N 1 , N 2 …… odd lines, the color difference signals of even lines (e.g. G-Y) F ...... signal processing converting unit D 1, D 2 ...... conversion unit output signal M 1 processed by F, M 2 ...... storage unit D 01, D 02 …… Output signal from storage unit S-P1, S-P2 …… Sequential simultaneous conversion unit VS …… Vertical scanning unit DP …… Display panel R, G, B …… Red, green and blue signals respectively

───────────────────────────────────────────────────── フロントページの続き (72)発明者 金子 ▲隆▼一 東京都世田谷区砧1丁目10番11号 日本放 送協会放送技術研究所内 (56)参考文献 特開 昭53−104120(JP,A) 特開 昭53−79421(JP,A) 実開 昭59−77199(JP,U) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaneko ▲ Ryu ▼ ichi 1-10-11 Kinuta, Setagaya-ku, Tokyo Inside the Japan Broadcasting Corporation Broadcasting Technology Laboratory (56) Reference JP-A-53-104120 (JP, A) JP-A-53-79421 (JP, A) Actually developed 59-77199 (JP, U)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】飛越走査信号を順次走査信号に変換し、そ
の順次走査信号を各セルが2値のメモリ機能を有する行
列型表示パネルにサブフィールド法で供給して中間調の
画像表示を行う表示装置において、該装置は、前記飛越
走査信号について少なくとも2本以上の順次走査線に相
当する信号がほぼ同時に並列に取り出された形態の順次
走査信号に変換する順次走査変換手段と、前記行列型表
示パネルの表示画面を少なくとも水平方向に分割してな
る各部分にそれぞれ対応する複数個の記憶ブロックを有
して前記順次走査変換手段から取り出された前記順次走
査信号を少なくとも水平走査線の各部分に対応して前記
記憶ブロックごとにそれぞれ分割記憶する記憶手段と、
該記憶手段から読み出された前記記憶ブロックごとの順
次走査信号をそれぞれ同時信号に変換する複数個の順次
−同時変換手段とを具え、前記記憶手段は前記複数個の
記憶ブロックを有して前記順次走査変換手段からの前記
順次走査信号を分割記憶していることに基づいて、前記
記憶手段から読み出される前記順次走査信号の速度を遅
くするとともに、1フレームの走査期間に複数の2値サ
ブフィールド信号が得られるように構成したことを特徴
とする表示装置。
1. An interlace scanning signal is converted into a progressive scanning signal, and the progressive scanning signal is supplied to a matrix type display panel having a binary memory function in each cell by a subfield method to display a halftone image. In the display device, the device comprises progressive scan conversion means for converting the interlaced scan signal into a progressive scan signal in a form in which signals corresponding to at least two sequential scan lines are taken out in parallel at substantially the same time, and the matrix type. The display screen of the display panel has a plurality of storage blocks respectively corresponding to respective portions formed by dividing the display screen in the horizontal direction, and the sequential scanning signal extracted from the sequential scanning conversion means is at least each portion of the horizontal scanning line. Storage means for separately storing each of the storage blocks corresponding to
A plurality of sequential-simultaneous conversion means for respectively converting the sequential scanning signals for each of the storage blocks read out from the storage means into simultaneous signals, wherein the storage means has the plurality of storage blocks. On the basis of dividing and storing the progressive scan signal from the progressive scan conversion means, the speed of the progressive scan signal read from the storage means is slowed down, and a plurality of binary subfields are provided in one frame scanning period. A display device characterized in that a signal is obtained.
JP60078531A 1985-04-15 1985-04-15 Display device Expired - Fee Related JPH0797846B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60078531A JPH0797846B2 (en) 1985-04-15 1985-04-15 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60078531A JPH0797846B2 (en) 1985-04-15 1985-04-15 Display device

Publications (2)

Publication Number Publication Date
JPS61238182A JPS61238182A (en) 1986-10-23
JPH0797846B2 true JPH0797846B2 (en) 1995-10-18

Family

ID=13664492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60078531A Expired - Fee Related JPH0797846B2 (en) 1985-04-15 1985-04-15 Display device

Country Status (1)

Country Link
JP (1) JPH0797846B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01174186A (en) * 1987-12-28 1989-07-10 Sharp Corp Liquid crystal drive circuit
JPH02126285A (en) * 1988-11-05 1990-05-15 Sharp Corp Liquid crystal driving circuit
JPH03289785A (en) * 1990-04-05 1991-12-19 Mitsubishi Electric Corp Scan conversion circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6025949B2 (en) * 1976-12-24 1985-06-21 株式会社日立製作所 TV signal processing method
JPS6051831B2 (en) * 1977-02-23 1985-11-15 日本放送協会 Image display method
JPS5977199U (en) * 1982-11-12 1984-05-25 株式会社日立製作所 Two-part panel image display device

Also Published As

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JPS61238182A (en) 1986-10-23

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