JPS62232622A - Matrix type liquid crystal panel device - Google Patents

Matrix type liquid crystal panel device

Info

Publication number
JPS62232622A
JPS62232622A JP7722286A JP7722286A JPS62232622A JP S62232622 A JPS62232622 A JP S62232622A JP 7722286 A JP7722286 A JP 7722286A JP 7722286 A JP7722286 A JP 7722286A JP S62232622 A JPS62232622 A JP S62232622A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal panel
difference
voltage
common electrodes
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
JP7722286A
Other languages
Japanese (ja)
Inventor
Koki Taniguchi
谷口 弘毅
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP7722286A priority Critical patent/JPS62232622A/en
Publication of JPS62232622A publication Critical patent/JPS62232622A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1345Conductors connecting electrodes to cell terminals

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

PURPOSE:To equalize contrast difference caused by the visual angle difference in the upper and lower directions of a liquid crystal panel, by forming a resistance of a voltage supply part of a line direction electrode, to a difference resistance value, and correcting and equalizing it by a difference of a voltage drop caused thereby. CONSTITUTION:A liquid crystal display device 1 is provided with common electrodes A-J which are divided into 10 lines, and a matrix type liquid crystal panel 2 having segment electrodes of 16 rows. A shape of voltage supply parts 2a-2c of the common electrodes A-C of the liquid crystal panel 2 is different from a shape of voltage supply parts 2d-2j of other common electrodes D-J. That is to say, on the voltage supply parts 2a-2c of the common electrodes A-C, notch parts 2a'-2c' are provided, and the resistance value is formed higher than that of the voltage supply parts 2d-2j of other common electrodes D-J, so that a large voltage drop e0 is generated. In other words, in such a liquid crystal display device 1, a voltage applied to the common electrodes A-C, and a voltage applied to the common electrodes D-J can be set different in voltage.

Description

【発明の詳細な説明】 3 、 発[!jJ (7) ts* 糸mな8免量男
産業上の利用分野 本発明は、マトリクス形液晶パネル装置に関し、更に詳
しくは、上下方向の視角差によるコントラスト差を均一
化したマトリクス形液晶パネル装置に関する。
[Detailed description of the invention] 3. From [! The present invention relates to a matrix-type liquid crystal panel device, and more specifically, to a matrix-type liquid crystal panel device that equalizes contrast differences due to vertical viewing angle differences. Regarding.

従来技術 従来のマトリクス形液晶パネル装置を含む液晶表示装置
の一例を第6図に示す。
Prior Art An example of a liquid crystal display device including a conventional matrix type liquid crystal panel device is shown in FIG.

この液晶表示装置51は、行方向のコモン電極A−Jを
有し且つ16111Jの列方向のセグメント電極を有す
る液晶パネル52を備え、その液晶パネル52をマトリ
クス表示方式で駆動する装置である。
This liquid crystal display device 51 includes a liquid crystal panel 52 having common electrodes A-J in the row direction and segment electrodes of 16111J in the column direction, and drives the liquid crystal panel 52 in a matrix display method.

マトリクスの各単位の表示のオン/オフは、その単位の
液晶にかかる駆動電圧で制御されるが、その駆動電圧は
、コモン電極A−Jの電圧と各セグメント電極の電圧の
差電圧で決まる。そして、各コモン電極A−Jに印加す
る電圧を一群の行駆動電圧E、、E2.Eう+EGから
適切に選択し、一方、各セグメント電極に加える電圧を
一群の列駆動電圧v、、v、、v、、vGから適切に選
択することによって、前記差電圧すなわち各単位の液晶
それぞれにかかる駆動電圧を個別に制御している。
The display on/off of each unit of the matrix is controlled by the drive voltage applied to the liquid crystal of that unit, and the drive voltage is determined by the voltage difference between the voltage of the common electrode AJ and the voltage of each segment electrode. Then, the voltages applied to each common electrode A-J are set to a group of row drive voltages E, , E2 . By appropriately selecting the voltage applied to each segment electrode from among a group of column drive voltages v, , v, , v, , vG, the differential voltage, that is, each unit of liquid crystal The drive voltage applied to each is individually controlled.

従来技術の問題点。Problems with conventional technology.

第4図に機器Qにおける液晶パネルPと視角θの関係を
示す。
FIG. 4 shows the relationship between the liquid crystal panel P in the device Q and the viewing angle θ.

液晶パネルPの上辺側部分子を見た時の視角θ。The viewing angle θ when looking at the molecules on the upper side of the liquid crystal panel P.

は、下辺側部分Bを見た時の視角θしより大きくなって
いる。
is larger than the viewing angle θ when looking at the lower side portion B.

ところが、液晶パネル(特にツィステッド・ネマティッ
ク形液晶を用いた液晶パネル)では、視角θによって液
晶の表示のコントラストが変化する特性があるので、液
晶パネルPが大画面となった場合は、そのコントラスト
の差が大きくなって、画面が非常に見づらくなる問題点
がある。
However, in liquid crystal panels (particularly liquid crystal panels using twisted nematic liquid crystals), the contrast of the liquid crystal display changes depending on the viewing angle θ, so when the liquid crystal panel P becomes a large screen, the contrast changes. The problem is that the difference becomes large and the screen becomes very difficult to see.

たとえば、第5図に示す特性曲線人及びBは、それぞれ
視角θとコントラスト比rの関係を示すものであるが、
視角θによってコントラスト比rが著しく変化すること
がわかる。
For example, the characteristic curves HI and B shown in FIG. 5 indicate the relationship between the viewing angle θ and the contrast ratio r, respectively.
It can be seen that the contrast ratio r changes significantly depending on the viewing angle θ.

まず曲線Aは、液晶の駆動電圧を14.5 Vとした場
合の特性で、液晶パネルPの上辺側部分子を見た時の視
角θ、を15°とし、下辺側部分Bを見たときの視角θ
bを5°とすると、液晶パネルPの上辺側部分子でのコ
ントラスト比alは4.0程度であり、それから下に行
くに従ってコントラスト比rが低下し、液晶パネルPの
下辺側部分、Bではコントラスト比a3が約2.7まで
下がっている。この場合のコントラスト比rの差は1.
3程度ある。
First, curve A is the characteristic when the driving voltage of the liquid crystal is 14.5 V, and when the viewing angle θ is 15 degrees when looking at the upper side of the liquid crystal panel P, and when looking at the lower side part B. viewing angle θ
When b is 5°, the contrast ratio al at the upper side of the liquid crystal panel P is about 4.0, and the contrast ratio r decreases as it goes downwards, and at the lower side of the liquid crystal panel P, B. The contrast ratio a3 has decreased to about 2.7. The difference in contrast ratio r in this case is 1.
There are about 3.

次に曲線Bは、液晶の駆動電圧を15.5 Vとした場
合の特性であって、液晶パネルPの上辺側部分子におけ
るコントラスト比b1は2.6程度であり、それから下
に行くに従ってコントラスト比rが上昇し、液晶パネル
Pの中央より少し下あたりでコントラスト比b1が最高
の約4.0となり、それから下の部分では下に行く程コ
ントラスト比rが小さくなり、液晶パネルPの下辺側部
分Bのコントラスト比b4は3.7程度まで低下してい
る。
Next, curve B shows the characteristics when the driving voltage of the liquid crystal is 15.5 V, and the contrast ratio b1 of the molecules on the upper side of the liquid crystal panel P is about 2.6, and the contrast decreases as it goes downward. The ratio r increases, and the contrast ratio b1 reaches its maximum of about 4.0 slightly below the center of the liquid crystal panel P, and then in the lower part, the contrast ratio r decreases as it goes down, and the contrast ratio b1 becomes smaller toward the bottom of the liquid crystal panel P. The contrast ratio b4 of portion B has decreased to about 3.7.

したがって、コントラスト比rの差は、最高値4゜0と
最低値2.6の差であって、約1.4となる。
Therefore, the difference in contrast ratio r is the difference between the highest value of 4°0 and the lowest value of 2.6, which is approximately 1.4.

このような視角θの差によるコントラストの差があると
、非常に画面が見づらくなる。
If there is a contrast difference due to such a difference in viewing angle θ, the screen becomes extremely difficult to see.

そこで、このような視角θの差によるコントラストの差
を均一化するために、従来、液晶パネル内の各場所に応
じてラビング角度を変える等の提案がなされているが、
上記問題を現実に解決するに至っていない。
Therefore, in order to equalize the difference in contrast due to the difference in viewing angle θ, proposals have been made in the past, such as changing the rubbing angle depending on each location within the liquid crystal panel.
The above problems have not yet been actually resolved.

発明の目的 本発明の目的とするところは、上下方向の視角差による
コントラストの差を均一化するようにしたマトリクス型
液晶パネル装置を提供することにある。
OBJECTS OF THE INVENTION It is an object of the present invention to provide a matrix type liquid crystal panel device that equalizes contrast differences due to vertical viewing angle differences.

発明の構成 本発明のマトリクス形液晶パネル装置は、行方向電極と
列方向電極とを有するマトリクス形液晶パネル装置にお
いて、行方向電極の電圧供給部分の抵抗を2以上の興な
る抵抗値に形成し、それによる電圧降下の差によって液
晶パネルの上下方向の視角差によるコントラスト差を補
正し均一化したことを構成上の特徴とするものである。
Structure of the Invention The matrix type liquid crystal panel device of the present invention is a matrix type liquid crystal panel device having row direction electrodes and column direction electrodes, in which the resistance of the voltage supply portion of the row direction electrodes is formed to have two or more different resistance values. The structural feature is that the difference in contrast caused by the difference in viewing angle in the vertical direction of the liquid crystal panel is corrected and made uniform by the difference in voltage drop caused by this.

作用 第5図からも理解されるが、視角θとコントラスト比「
の特性は、液晶の駆動電圧により左右される。
As can be understood from Fig. 5, the visual angle θ and the contrast ratio ``
The characteristics of are influenced by the driving voltage of the liquid crystal.

本発明のマトリクス形液晶パネル装置では、行方向電極
の電圧供給部分の抵抗を異なる値とし、異なる電圧降下
を生じさせることにより、実際に行方向電極にかかる行
駆動電圧として異なる電圧を供給しうるようにしている
In the matrix type liquid crystal panel device of the present invention, by setting the resistances of the voltage supply portions of the row direction electrodes to different values and causing different voltage drops, it is possible to actually supply different voltages as row drive voltages applied to the row direction electrodes. That's what I do.

そして、それら抵抗値は、液晶パネルの上下方向の視角
差によるコントラスト差を均一化するような駆動電圧が
液晶に印加されるように調整される。
These resistance values are adjusted so that a driving voltage is applied to the liquid crystal that equalizes the contrast difference caused by the vertical viewing angle difference of the liquid crystal panel.

そこで、視角差によるコントラスト差を均一化できるこ
ととなる。
Therefore, the contrast difference due to the viewing angle difference can be made uniform.

実方缶伊J 以下、図に示す実施例に基づいて本発明を更に詳しく説
明する。ここに第1図は本発明の一実施例のマトリクス
形液晶パネル装置を含む液晶表着装置の要部構成ブロッ
ク図、第2図は本発明の他の実施例の模式的正面図、第
3図は本発明の更に他の実施例の模式的正面図である。
The present invention will be explained in more detail below based on embodiments shown in the drawings. Here, FIG. 1 is a block diagram of the main part of a liquid crystal display device including a matrix type liquid crystal panel device according to one embodiment of the present invention, FIG. 2 is a schematic front view of another embodiment of the present invention, and FIG. 3 is a schematic front view of another embodiment of the present invention. The figure is a schematic front view of still another embodiment of the present invention.

なお、図に示す実施例により本発明が限定されるもので
はない。
Note that the present invention is not limited to the embodiments shown in the figures.

第1図に示す液晶表示装置1は、10行に分割されたコ
モン電極A−Jと、16列のセグメント電極を持つマト
リクス形の液晶パネル2を存している。
A liquid crystal display device 1 shown in FIG. 1 includes a matrix-type liquid crystal panel 2 having common electrodes A-J divided into 10 rows and segment electrodes in 16 columns.

この液晶パネル2のセグメント電極を駆動するセグメン
ト側駆動部3は、従来と同様の構成であり、シフトレジ
スタ4.データラッチ5.レベルコンバータ6、アナロ
グスイッチ7及び列駆動電圧供給回路8を有し、セグメ
ント電極にV、、V。
The segment side drive unit 3 that drives the segment electrodes of the liquid crystal panel 2 has the same configuration as the conventional one, and the shift register 4. Data latch 5. It has a level converter 6, an analog switch 7, and a column drive voltage supply circuit 8, and has V, , V applied to the segment electrodes.

、■や+  vGのいずれかの電圧を供給している。, ■ or +vG is supplied.

コモン電極を駆動するコモン側駆動部10も、上記セグ
メント側駆動部3と同様の構成であり、シフトレジスタ
11.データラ7チ12.  レベルコンバータ13.
アナログスイッチ14及び行駆動電圧供給回路16を有
している。
The common side drive unit 10 that drives the common electrodes also has the same configuration as the segment side drive unit 3, and has a shift register 11. Datara 7chi 12. Level converter 13.
It has an analog switch 14 and a row drive voltage supply circuit 16.

ここで注意すべきことは、液晶パネル2のコモン電極A
−Cの電圧供給部分2.〜2cの形状と、他のコモン電
極D−Jの電圧供給部分2,1〜2゜の形状とが異なっ
ている点である。すなわち、コモン電極A−Cの電圧供
給部分2□〜2cには切り欠き部分2.′〜2c/が設
けられており、他のコモン電極D−Jの電圧供給部分2
a〜2jに比べて抵抗値を高く形成され、大きな電圧降
下e0を生じるようにされている。そこで、コモン電極
D−Jに対しては、アナログスイッチ14及び行駆動電
圧供給回路16から行駆動電圧E1.E2、ES + 
 EGがほぼそのまま供給されるのに対して、コモン電
極A−Cに対しては、電圧降下e0だけ低い行駆動電圧
E I ’ 、E2 ’ + ES ’ 、EG′が供
給される。
What should be noted here is that the common electrode A of the liquid crystal panel 2
-C voltage supply part 2. 2c is different from the shape of the voltage supply portion 2, 1 to 2 degrees of the other common electrode D-J. That is, the voltage supply portions 2□ to 2c of the common electrodes A-C have cutout portions 2. '~2c/ is provided, and the voltage supply part 2 of the other common electrode D-J is provided.
It is formed to have a higher resistance value than a to 2j, so as to cause a large voltage drop e0. Therefore, the row drive voltage E1. E2, ES +
While EG is supplied almost as is, row drive voltages EI', E2'+ES', EG', which are lower by voltage drop e0, are supplied to the common electrodes A-C.

つまり、この液晶表示装置lでは、コモン電極A〜Cに
加えられる電圧と、コモン電極D−Jに加えられる電圧
とを異なる電圧とすることができるようになっており、
そのため、コモン電極A〜Cに対応する液晶とコモン電
極D−Jに対応する液晶とにかかる駆動電圧を異なった
電圧にできるようになっている。
In other words, in this liquid crystal display device I, the voltage applied to the common electrodes A to C and the voltage applied to the common electrode DJ can be set to different voltages.
Therefore, the driving voltages applied to the liquid crystals corresponding to the common electrodes A to C and the liquid crystals corresponding to the common electrodes D-J can be set to different voltages.

今、この液晶パネル2を第4図に示す液晶パネルPに当
てはめると、コモン電極A−Cに対応する視角θは15
°〜12°であり、コモン電極D〜Jに対応する視角θ
は12°〜5°となる。また、液晶パネル2の液晶が、
ツィステッド・ネマティック形液晶で、第5図に示すよ
うな特性を有するもめとすると、コモン電極A−Cの電
圧供給部2.〜2cを適切な形状に形成することにより
、それらコモン電極A−Cに供給する行駆動電圧EI 
’ 、E2’ + ES ’ 、E6′を調整して、こ
れらに対応する液晶には例えば14.5 Vの駆動電圧
が印加されるようにし、コモン電極D−Jに供給する行
駆動電圧E、、  E2.E、、EGとしては、これら
に対応する液晶には例えば15.5 Vの駆動電圧が印
加されるようにする。
Now, when this liquid crystal panel 2 is applied to the liquid crystal panel P shown in FIG. 4, the viewing angle θ corresponding to the common electrode A-C is 15
°~12°, and the visual angle θ corresponding to the common electrodes D~J
is 12° to 5°. In addition, the liquid crystal of the liquid crystal panel 2 is
Assuming that the twisted nematic liquid crystal has the characteristics shown in FIG. 5, the voltage supply section 2 of the common electrode A-C. ~2c into an appropriate shape, the row drive voltage EI to be supplied to the common electrodes A-C can be increased.
', E2' + ES', and E6' are adjusted so that a drive voltage of, for example, 14.5 V is applied to the liquid crystal corresponding to these, and the row drive voltage E, which is supplied to the common electrode D-J. , E2. For E, EG, a driving voltage of 15.5 V, for example, is applied to the liquid crystal corresponding to these.

そうすると、コモン電極A−Cに対応する視角θ=15
°〜12°では第5図に示す曲線Aでコントラスト比「
が規定され、コモン電極D−Jに対応する視角θ−12
°〜5°に対しては第5図に示す曲線Bによってコント
ラスト比rが規定されることとなるが、その場合、液晶
パネル2の全面において、コントラスト比rの最大値は
31点又はb3点の約4.0であり、最小値は37点あ
るいはす7点の約3.4となる。したがって、コントラ
スト比rの差は約0.6となる。
Then, the viewing angle θ corresponding to the common electrode A-C is 15
From 12° to 12°, curve A shown in Figure 5 shows the contrast ratio "
is defined, and the viewing angle θ-12 corresponding to the common electrode D-J
5° to 5°, the contrast ratio r is defined by the curve B shown in FIG. is approximately 4.0, and the minimum value is approximately 3.4, which is 37 points or 7 points. Therefore, the difference in contrast ratio r is approximately 0.6.

そこで、少なくともこの液晶表示装置1の液晶パネル2
は、前述した従来の液晶パネル52に較べて、視角差に
よるコントラスト比の差が1/2程度に改善されたとい
える。
Therefore, at least the liquid crystal panel 2 of this liquid crystal display device 1
It can be said that the difference in contrast ratio due to the difference in viewing angle has been improved to about 1/2 compared to the conventional liquid crystal panel 52 described above.

したがって、オペレータから見たとき、この液晶パネル
2は、コントラスト差が均一化されており、見やすい画
面となる。
Therefore, when viewed by an operator, the liquid crystal panel 2 has a uniform contrast difference and becomes an easy-to-read screen.

上記実施例の液晶パネル2は単なる例示であり、次に他
の実施例を説明する。
The liquid crystal panel 2 of the above embodiment is merely an example, and other embodiments will be described next.

まず、第2図に示す液晶パネル22は、コモン電極A−
Gについて長さの異なる切り欠き部分22、′〜22ぎ
′をそれぞれ形成し、それにより抵抗値を変えて異なる
電圧降下を生じさせ、異なる行駆動電圧を印加しうるよ
うにしたものである。
First, the liquid crystal panel 22 shown in FIG.
The notch portions 22, ′ to 22 ′ having different lengths are formed in G, thereby changing the resistance value to produce different voltage drops, so that different row driving voltages can be applied.

これにより各液晶にかかる駆動電圧を、視角差によるコ
ントラスト差を均一化するように設定できるので、大画
面であっても、視角差によるコントラスト差が少なく、
極めて見やすい画面となる。
As a result, the drive voltage applied to each liquid crystal can be set to equalize contrast differences due to viewing angle differences, so even on a large screen, contrast differences due to viewing angle differences are small.
The screen becomes extremely easy to view.

次に、第3図に示す液晶パネル32は、コモン電極A−
Jについて厚さの異なる電圧供給部分32□〜32+を
設け、それにより抵抗値を変えて異なる電圧降下を生じ
させ、異なる行駆動電圧を印加しうるようにしたもので
ある。
Next, the liquid crystal panel 32 shown in FIG.
Voltage supply portions 32□ to 32+ having different thicknesses are provided for J, thereby changing the resistance value to produce different voltage drops, so that different row drive voltages can be applied.

この液晶パネル32においても、上下方向の視角差によ
るコントラスト差が均一化されるので、極めて見やすい
画面となる。
In this liquid crystal panel 32 as well, the contrast difference due to the vertical viewing angle difference is equalized, resulting in an extremely easy-to-see screen.

発明の効果 本発明によれば、行方向電極と列方向電極とを有するマ
トリクス形液晶パネル装置において、行方向電極の電圧
供給部分の抵抗を2以上の異なる抵抗値に形成し、それ
による電圧降下の差によって液晶パネルの上下方向の視
角差によるコントラスト差を補正し均一化したことを特
徴とするマトリクス形液晶パネルネル装置が提供され、
これにより液晶パネルの上下方向の視角差によるコント
ラスト差が補正され均一化されるので、大画面であって
も極めて見やすい画面となる。
Effects of the Invention According to the present invention, in a matrix type liquid crystal panel device having row direction electrodes and column direction electrodes, the resistance of the voltage supply portion of the row direction electrodes is formed to have two or more different resistance values, and the resulting voltage drop is reduced. Provided is a matrix type liquid crystal panel device characterized in that the contrast difference due to the vertical viewing angle difference of the liquid crystal panel is corrected and made uniform by the difference in the vertical direction of the liquid crystal panel.
This corrects and equalizes the contrast difference due to the difference in viewing angle in the vertical direction of the liquid crystal panel, resulting in an extremely easy-to-see screen even if it is a large screen.

【図面の簡単な説明】 第1図は本発明の一実施例のマトリクス形液晶パネル装
置を含む液晶表示装置の要部構成ブロック図、第2図は
本発明の他の実施例の模式的正面図、第3図は本発明の
更に他の実施例の模式的正面図、第4図は液晶パネルを
有する機器における視角の説明のための模式的側面図、
第5図は視角θとコントラスト比rの特性図、第6(!
lは従来のマ) IJクス形液晶パネル装置を含む液晶
表示装置の一例の構成ブロック図である。 (符号の説明) 1.21.31・・・液晶表示装置 2.22.32・・・液晶パネル 3・・・セグメント側駆動部 8・・・列駆動電圧供給回路 10・・・コモン側駆動部 14・・・アナログスイッチ 16・・・行駆動電圧供給回路。 A−J・・・コモン電極 2Il〜2+、32a〜32.・・・電圧供給部分2□
′〜2c’、22.’ 〜22g′・・・切り欠きθ5
 θ1.θb・・・視角 P・・・液晶パネル。
[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a block diagram of the main parts of a liquid crystal display device including a matrix type liquid crystal panel device according to an embodiment of the present invention, and FIG. 2 is a schematic front view of another embodiment of the present invention. 3 is a schematic front view of still another embodiment of the present invention, and FIG. 4 is a schematic side view for explaining the viewing angle in a device having a liquid crystal panel.
Figure 5 is a characteristic diagram of viewing angle θ and contrast ratio r, and Figure 6 (!
1 is a configuration block diagram of an example of a liquid crystal display device including a conventional IJ type liquid crystal panel device. (Explanation of symbols) 1.21.31...Liquid crystal display device 2.22.32...Liquid crystal panel 3...Segment side drive section 8...Column drive voltage supply circuit 10...Common side drive Section 14: Analog switch 16: Row drive voltage supply circuit. A-J... Common electrodes 2Il-2+, 32a-32. ...Voltage supply part 2□
'~2c', 22. '~22g'...notch θ5
θ1. θb...Viewing angle P...Liquid crystal panel.

Claims (1)

【特許請求の範囲】 1、行方向電極と列方向電極とを有するマトリクス形液
晶パネル装置において、行方向電極の電圧供給部分の抵
抗を2以上の異なる抵抗値に形成し、それによる電圧降
下の差によって液晶パネルの上下方向の視角差によるコ
ントラスト差を補正し均一化したことを特徴とするマト
リクス形液晶パネル装置。 2、行方向電極の電圧供給部分の形状を変えることによ
り異なる抵抗値に形成してなる特許請求の範囲第1項記
載のマトリクス形液晶パネル装置。
[Claims] 1. In a matrix type liquid crystal panel device having row direction electrodes and column direction electrodes, the resistance of the voltage supply portion of the row direction electrodes is formed to have two or more different resistance values, and the resulting voltage drop is reduced. 1. A matrix type liquid crystal panel device characterized in that a contrast difference due to a difference in viewing angle in the vertical direction of a liquid crystal panel is corrected and made uniform by the difference. 2. The matrix type liquid crystal panel device according to claim 1, wherein the voltage supply portions of the row direction electrodes are formed to have different resistance values by changing the shape thereof.
JP7722286A 1986-04-03 1986-04-03 Matrix type liquid crystal panel device Pending JPS62232622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7722286A JPS62232622A (en) 1986-04-03 1986-04-03 Matrix type liquid crystal panel device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7722286A JPS62232622A (en) 1986-04-03 1986-04-03 Matrix type liquid crystal panel device

Publications (1)

Publication Number Publication Date
JPS62232622A true JPS62232622A (en) 1987-10-13

Family

ID=13627822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7722286A Pending JPS62232622A (en) 1986-04-03 1986-04-03 Matrix type liquid crystal panel device

Country Status (1)

Country Link
JP (1) JPS62232622A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0339930A (en) * 1989-07-07 1991-02-20 Matsushita Electric Ind Co Ltd Liquid crystal display device
JP2014190997A (en) * 2013-03-26 2014-10-06 Mitsubishi Electric Corp Liquid crystal display device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168036A (en) * 1982-03-30 1983-10-04 Fujitsu Ltd Liquid crystal display
JPS6037526A (en) * 1983-08-10 1985-02-26 Mitsubishi Electric Corp Method for driving liquid crystal display element
JPS60230699A (en) * 1984-04-28 1985-11-16 シャープ株式会社 Dot matrix type liquid crystal display unit
JPS6159425A (en) * 1984-08-31 1986-03-26 Canon Inc Liquid crystal display element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168036A (en) * 1982-03-30 1983-10-04 Fujitsu Ltd Liquid crystal display
JPS6037526A (en) * 1983-08-10 1985-02-26 Mitsubishi Electric Corp Method for driving liquid crystal display element
JPS60230699A (en) * 1984-04-28 1985-11-16 シャープ株式会社 Dot matrix type liquid crystal display unit
JPS6159425A (en) * 1984-08-31 1986-03-26 Canon Inc Liquid crystal display element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0339930A (en) * 1989-07-07 1991-02-20 Matsushita Electric Ind Co Ltd Liquid crystal display device
JP2014190997A (en) * 2013-03-26 2014-10-06 Mitsubishi Electric Corp Liquid crystal display device

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