JPH10177456A - Liquid crystal tablet - Google Patents

Liquid crystal tablet

Info

Publication number
JPH10177456A
JPH10177456A JP35363996A JP35363996A JPH10177456A JP H10177456 A JPH10177456 A JP H10177456A JP 35363996 A JP35363996 A JP 35363996A JP 35363996 A JP35363996 A JP 35363996A JP H10177456 A JPH10177456 A JP H10177456A
Authority
JP
Japan
Prior art keywords
pannel
liquid crystal
lcd
grid
transparent
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
JP35363996A
Other languages
Japanese (ja)
Inventor
Kenji Chiba
謙二 千葉
Yasushi Kato
靖 加藤
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.)
Mutoh Industries Ltd
Original Assignee
Mutoh Industries 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 Mutoh Industries Ltd filed Critical Mutoh Industries Ltd
Priority to JP35363996A priority Critical patent/JPH10177456A/en
Publication of JPH10177456A publication Critical patent/JPH10177456A/en
Pending legal-status Critical Current

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  • Position Input By Displaying (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce the influence of the transparency of a grip on display quality and also the eliminate the packaging limit of a sensor board by integratedly forming a liquid crystal display and an XY-coordinate analyzing tablet and fitting a transparent digitizing grid between an LCD panel and a backlight pannel. SOLUTION: This liquid crystal tablet is provided with the three-layer structure of the LDC (liquid crystal) pannel 6, the backlight pannel 2 executing illumination so as to easily view the LCD pannel 6 and the transparent digitized grid 8 and the liquid crystal display and the XY-coordinate analyzing tablet are integratedly formed. Here, the transparent digitized grid 8 where a fine wire or an ITO film are fitted to a glass substrate, etc., is inserted between the LCD pannel 6 and the backlight pannel 2. Then, image character data inputted to an electronic substrate 10 is displayed in the LCD pannel. 6. The XY- coordinate position of a stylus pen on the LCD pannel 6 is detected by the transparent digitized grid 8 and outputted from an output terminal to an external equipment.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は液晶ディスプレイと
XY座標解析タブレットが一体的に形成された、表示装
置及びディジタル化入力デバイスとして用いられる液晶
タブレットに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal tablet used as a display device and a digitizing input device, in which a liquid crystal display and an XY coordinate analysis tablet are integrally formed.

【0002】[0002]

【従来技術】LCDパネルの表面に透明フィルムにより
グリッドを実装し、LCDパネルの下面にバックライト
パネルを装着した電磁誘導形のディジタイザが特表平6
−511578号公報に開示されている。また、LCD
パネルの下にバックライトパネルを装着し、このバック
ライトパネルの下面にディジタル化グリッドを実装した
ディジタイザが従来知られている。
2. Description of the Related Art An electromagnetic induction-type digitizer in which a grid is mounted on the surface of an LCD panel by a transparent film and a backlight panel is mounted on the lower surface of the LCD panel is disclosed in Japanese Patent Application Laid-Open No. H06-163,873.
No. 511578. Also, LCD
A digitizer in which a backlight panel is mounted below a panel and a digitizing grid is mounted on the lower surface of the backlight panel is conventionally known.

【0003】[0003]

【発明が解決しようとする課題】LCDパネルの表面に
透明フィルムによりグリッドを実装する構成は、グリッ
ドの透明度が一様ではないため、グリッドが輝度や表示
品質の妨げとなってしまうという問題点が存した。ま
た、ディジタル化グリッドがバックライトパネルの下に
配置される構成は、次の問題点がある。スタイラスペン
の位置感知は、スタイラスペンとディジタル化グリッド
との間に存在する電磁界を用い、当業者にとって公知の
任意の様式により行われる。電磁誘導方式のグリッド
は、プリント基板で作られるため、LCDパネルの裏面
に実装する必要がある。ところが、LCDパネルの小型
化のため、LCDパネル自体が持っている回路のプリン
ト基板の位置で、グリッドの基板の実装を制限してい
る。また、液晶モニタ用の大型の液晶モジュールでは、
輝度を上げるために、モジュール裏面に何本ものライト
(蛍光管)をならべている。このように、上記構成で
は、グリッド用の基板を実装できないケースが増加して
きている。本発明は上記問題点を解決することを目的と
するものである。
The configuration in which the grid is mounted on the surface of the LCD panel using a transparent film has a problem that the grid does not have a uniform transparency, so that the grid hinders brightness and display quality. Existed. The configuration in which the digitizing grid is arranged below the backlight panel has the following problems. Sensing the position of the stylus is performed in any manner known to those skilled in the art using the electromagnetic field present between the stylus and the digitizing grid. Since the electromagnetic induction type grid is made of a printed circuit board, it needs to be mounted on the back surface of the LCD panel. However, in order to reduce the size of the LCD panel, the mounting of the grid substrate is restricted at the position of the printed circuit board of the circuit of the LCD panel itself. Also, for large LCD modules for LCD monitors,
To increase the brightness, a number of lights (fluorescent tubes) are arranged on the back of the module. As described above, in the above configuration, the number of cases where the grid substrate cannot be mounted is increasing. An object of the present invention is to solve the above problems.

【0004】[0004]

【課題を解決するための手段】上記目的を達成するた
め、本発明は、LCDパネル(6)と、該LCDパネル
(6)を見やすいように照明するためのバックライトパ
ネル(2)と、透明ディジタル化グリッド(8)の3層
構造を備え、液晶ディスプレイとXY座標解析タブレッ
トが一体的に形成された液晶タブレットにおいて、前記
LCDパネル(6)とバックライトパネル(2)との間
に透明ディジタル化グリッド(8)を装着したものであ
る。
In order to achieve the above object, the present invention provides an LCD panel (6), a backlight panel (2) for illuminating the LCD panel (6) so that it is easy to see, and a transparent panel. In a liquid crystal tablet having a three-layer structure of a digitizing grid (8) and integrally formed with a liquid crystal display and an XY coordinate analysis tablet, a transparent digital signal is provided between the LCD panel (6) and the backlight panel (2). It is equipped with a modified grid (8).

【0005】[0005]

【発明の実施の形態】以下に本発明の構成を、添付した
図面に示す発明の実施の形態を参照して詳細に説明す
る。(2)は、液晶タブレット(4)の構成要素である
バックライトパネルであり、これの上に配設されたLC
Dパネル(6)を見やすいように照明するためのもので
ある。前記バックライトパネル(2)とLCDパネル
(6)との間には、透明ディジタル化グリッド(8)が
装着されている。前記透明ディジタル化グリッド(8)
は、ガラス基板やマイラーフィルム等にファインワイヤ
(極細の電線であり詳細は実公平7−37146号公報
に開示されている)または、ITO膜(透明電極であり
詳細は特表平6−511578号公報に開示されてい
る)を装着したものである。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the embodiments of the present invention shown in the accompanying drawings. (2) is a backlight panel which is a component of the liquid crystal tablet (4), and the LC panel disposed thereon is
This is for illuminating the D panel (6) so that it is easy to see. A transparent digitizing grid (8) is mounted between the backlight panel (2) and the LCD panel (6). The transparent digitizing grid (8)
Are fine wires (extra fine wires, details of which are disclosed in Japanese Utility Model Publication No. 7-37146) or ITO films (transparent electrodes, details of which are disclosed in JP-A-6-511578). (Disclosed in the official gazette).

【0006】また、透明ディジタル化グリッド(8)の
他の構成として、バックライトパネル(2)の導光板の
部分にグリッドのワイヤを貼り付けたり、電極を印刷す
ることも可能である。(10)は液晶(LCD)パネル
の電子基板であり、バックライト(2)の下に位置して
ケース(12)内に配置されている。上記した構成にお
いて、電子基板(10)に入力された画像文字データ
は、LCD(液晶)パネル(6)に表示される。また、
LCDパネル(6)上のスタイラスペンのXY座標位置
は、透明ディジタル化グリッド(8)によって検出さ
れ、出力端から外部機器に出力される。
Further, as another configuration of the transparent digitizing grid (8), it is also possible to attach wires of the grid to the portion of the light guide plate of the backlight panel (2) or to print electrodes. Reference numeral (10) denotes an electronic substrate of a liquid crystal (LCD) panel, which is located in the case (12) below the backlight (2). In the above configuration, the image character data input to the electronic board (10) is displayed on the LCD (liquid crystal) panel (6). Also,
The XY coordinate position of the stylus pen on the LCD panel (6) is detected by the transparent digitizing grid (8) and output from an output terminal to an external device.

【0007】[0007]

【発明の効果】本発明は上述の如く、LCDパネルとバ
ックライトパネルとの間に、透明デイジタル化グリッド
を装着したので、グリッドの透明度が表示品質に影響す
る割合を低下させることができ、しかも、LCDパネル
の小型化、又は大型化に伴うセンサ基板の実装制限をな
くすことができる効果が存する。
As described above, according to the present invention, since the transparent digitizing grid is mounted between the LCD panel and the backlight panel, the rate at which the transparency of the grid affects the display quality can be reduced. In addition, there is an effect that the mounting restriction of the sensor substrate accompanying the downsizing or upsizing of the LCD panel can be eliminated.

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

【図1】本発明の概略断面図である。FIG. 1 is a schematic sectional view of the present invention.

【図2】本発明の概略断面図である。FIG. 2 is a schematic sectional view of the present invention.

【符号の説明】[Explanation of symbols]

2 バックライトパネル 4 液晶タブレット 6 LCDパネル 8 ディジタル化グリッド 10 電子基板 12 ケース 2 Backlight panel 4 LCD tablet 6 LCD panel 8 Digitization grid 10 Electronic board 12 Case

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 LCDパネル(6)と、該LCDパネル
(6)を見やすいように照明するためのバックライトパ
ネル(2)と、透明ディジタル化グリッド(8)の3層
構造を備え、液晶ディスプレイとXY座標解析タブレッ
トが一体的に形成された液晶タブレットにおいて、前記
LCDパネル(6)とバックライトパネル(2)との間
に透明ディジタル化グリッド(8)を装着したことを特
徴とする液晶タブレット。
1. A liquid crystal display comprising a three-layer structure of an LCD panel (6), a backlight panel (2) for illuminating the LCD panel (6) so that it can be easily viewed, and a transparent digitizing grid (8). And a XY coordinate analysis tablet, wherein a transparent digitizing grid (8) is mounted between the LCD panel (6) and the backlight panel (2). .
JP35363996A 1996-12-17 1996-12-17 Liquid crystal tablet Pending JPH10177456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35363996A JPH10177456A (en) 1996-12-17 1996-12-17 Liquid crystal tablet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35363996A JPH10177456A (en) 1996-12-17 1996-12-17 Liquid crystal tablet

Publications (1)

Publication Number Publication Date
JPH10177456A true JPH10177456A (en) 1998-06-30

Family

ID=18432215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35363996A Pending JPH10177456A (en) 1996-12-17 1996-12-17 Liquid crystal tablet

Country Status (1)

Country Link
JP (1) JPH10177456A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7121683B2 (en) 2004-02-06 2006-10-17 Au Optronics Corp. Direct backlight module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7121683B2 (en) 2004-02-06 2006-10-17 Au Optronics Corp. Direct backlight module

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