JPS63187194U - - Google Patents
Info
- Publication number
- JPS63187194U JPS63187194U JP7364787U JP7364787U JPS63187194U JP S63187194 U JPS63187194 U JP S63187194U JP 7364787 U JP7364787 U JP 7364787U JP 7364787 U JP7364787 U JP 7364787U JP S63187194 U JPS63187194 U JP S63187194U
- Authority
- JP
- Japan
- Prior art keywords
- display
- contrast
- storage means
- control value
- volume control
- 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
Links
- 238000010586 diagram Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Television Receiver Circuits (AREA)
Description
第１図はこの考案の一実施例の回路構成を示す
ブロツク図、第２図は同実施例の動作を説明する
ためのフローチヤート、第３図は同実施例の表示
部での表示例を説明するための図である。
１……キー入力部、１ａ……置数キー、１ｂ…
…フアンクシヨンキー、１ｃ，１ｄ……「←」「
→」キー、２……ＣＰＵ、３……リセツトスイツ
チ、４……記憶部、４１……コントラストレジス
タ、４２……Ｆレジスタ、５……電子ボリユーム
、５１１〜５１ｎ……抵抗、５２１〜５２ｎ……
ＭＯＳスイツチ、５３……バツフア、６……表示
ドライバ、７……液晶表示部。
Fig. 1 is a block diagram showing the circuit configuration of an embodiment of this invention, Fig. 2 is a flow chart for explaining the operation of the embodiment, and Fig. 3 is an example of the display on the display section of the embodiment. It is a figure for explaining. 1...Key input section, 1a...Number key, 1b...
...Function keys, 1c, 1d..."←""
→" key, 2...CPU, 3...Reset switch, 4...Storage unit, 41...Contrast register, 42...F register, 5...Electronic volume, 511-51n...Resistor, 521-52n... …
MOS switch, 53...Buffer, 6...Display driver, 7...Liquid crystal display section.
Claims (1)
整するものにおいて、上記表示部の表示コントラ
ストを決定する電子ボリユームと、上記機器初期
化にともなうリセツト動作により予め設定された
ボリユーム制御値が書込まれる記憶手段とを具備
し、上記記憶手段のボリユーム制御値を上記計算
機のキー入力部の既設キーにより調整可能とした
ことを特徴とするコントラスト調整装置。 In an apparatus for adjusting the display contrast of a display section of a small electronic device, an electronic volume that determines the display contrast of the display section, and a storage means in which a volume control value preset by a reset operation accompanying initialization of the device is written. A contrast adjustment device comprising: a volume control value of the storage means that can be adjusted by an existing key of a key input section of the computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7364787U JPS63187194U (en) | 1987-05-19 | 1987-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7364787U JPS63187194U (en) | 1987-05-19 | 1987-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63187194U true JPS63187194U (en) | 1988-11-30 |
Family
ID=30918163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7364787U Pending JPS63187194U (en) | 1987-05-19 | 1987-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63187194U (en) |
-
1987
- 1987-05-19 JP JP7364787U patent/JPS63187194U/ja active Pending
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