JP7463895B2 - 集積回路装置、電子機器及び移動体 - Google Patents
集積回路装置、電子機器及び移動体 Download PDFInfo
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
- G09G3/18—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using liquid crystals
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- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
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- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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- Combustion & Propulsion (AREA)
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Description
図1は、液晶表示装置300の構成例の平面視図である。液晶表示装置300は、液晶表示パネル200と集積回路装置100とを含む。なお、液晶表示装置300の構成は図1に限定されない。例えば、図1では集積回路装置100がCOG実装される例を説明するが、集積回路装置100の実装方法はCOG実装に限定されない。
図3は、電圧供給回路110の構成例である。電圧供給回路110は、昇圧部111と電圧調整部112とを含む。
Von_duty=Vs×{(a2+2a+N)/N}1/2 ・・・(1)
Voff_duty=Vs×{(a2-2a+N)/N}1/2 ・・・(2)
図6は、第1セレクター151の詳細構成例である。第1セレクター151は、アンド回路AN1~AN11とオア回路OR1~OR4とラッチ回路FV2、FV1、FVC、FMV1、FMV2とを含む。ここでは、1つの駆動部に対する構成を図示するが、図6と同様な構成が駆動部DA1~DAnの各駆動部に対応して設けられる。なお、図6では第1セレクター151を例に図示しているが、第2セレクター152も同様な構成である。
図12と図13に、駆動回路120、第1コモン駆動回路181及び第2コモン駆動回路182のレイアウト例の平面視図を示す。なお、図12と図13には、それぞれ3つずつレイアウト例を記載しているが、各レイアウト例は独立したレイアウト例である。また、各レイアウト例を左右反転又は上下反転したものも実施可能であるとする。
図16は、本実施形態の集積回路装置100を含む電子機器600の構成例である。本実施形態の電子機器として、液晶表示装置300を搭載する種々の電子機器を想定できる。例えば本実施形態の電子機器として、車載装置、電子計算機、ディスプレイ、情報処理装置、携帯型情報端末、又は携帯型ゲーム端末等を想定できる。車載装置は、例えばクラスターパネル等の車載表示装置である。クラスターパネルは、運転席の前に設けられ、メーター等が表示される表示パネルである。
Claims (11)
- コモン電圧と、前記コモン電圧より高い第1正極性電圧と、前記第1正極性電圧より高い第2正極性電圧と、前記コモン電圧より低い第1負極性電圧と、前記第1負極性電圧より低い第2負極性電圧と、を供給する電圧供給回路と、
前記コモン電圧、前記第1正極性電圧、前記第2正極性電圧、前記第1負極性電圧及び前記第2負極性電圧に基づいて、ドットマトリックス表示用の第1駆動波形信号を出力し、前記コモン電圧、前記第1正極性電圧及び前記第1負極性電圧に基づいて、セグメント表示用の第2駆動波形信号を出力する駆動回路と、
を含むことを特徴とする集積回路装置。 - 請求項1に記載の集積回路装置において、
出力端子を含み、
前記駆動回路は、
前記出力端子がドットマトリックス表示用の出力端子に設定されたとき、前記コモン電圧、前記第1正極性電圧、前記第2正極性電圧、前記第1負極性電圧及び前記第2負極性電圧に基づいて、前記第1駆動波形信号を前記出力端子に出力し、
前記出力端子がセグメント表示用の出力端子に設定されたとき、前記コモン電圧、前記第1正極性電圧及び前記第1負極性電圧に基づいて、前記第2駆動波形信号を前記出力端子に出力することを特徴とする集積回路装置。 - 請求項2に記載の集積回路装置において、
前記出力端子を前記ドットマトリックス表示用の出力端子又は前記セグメント表示用の出力端子に設定する制御回路を含むことを特徴とする集積回路装置。 - 請求項1乃至3のいずれか一項に記載の集積回路装置において、
前記電圧供給回路は、
電源電圧に基づいて前記第1負極性電圧を生成する第1レギュレーターを含むことを特徴とする集積回路装置。 - 請求項4に記載の集積回路装置において、
前記電圧供給回路は、
前記第2負極性電圧を基準に前記第1負極性電圧を4倍した電圧である前記第2正極性電圧を生成する第2レギュレーターを含むことを特徴とする集積回路装置。 - 請求項5に記載の集積回路装置において、
前記第2レギュレーターは、
前記第1負極性電圧と前記第2正極性電圧の間を3等分する前記第1正極性電圧及び前記コモン電圧を生成することを特徴とする集積回路装置。 - 請求項4乃至6のいずれか一項に記載の集積回路装置において、
前記第1レギュレーターは、
セグメント表示のコントラスト調整を行う電子ボリュームであることを特徴とする集積回路装置。 - 請求項1乃至7のいずれか一項に記載の集積回路装置において、
前記電圧供給回路は、
前記第2正極性電圧より高い第3正極性電圧と前記第2負極性電圧より低い第3負極性電圧とを生成し、前記第3正極性電圧及び前記第3負極性電圧をドットマトリックス表示用のコモン駆動回路に供給する第3レギュレーターを含むことを特徴とする集積回路装置。 - 請求項8に記載の集積回路装置において、
前記第3レギュレーターは、
ドットマトリックス表示のコントラスト調整を行う電子ボリュームであることを特徴とする集積回路装置。 - 請求項1乃至9のいずれか一項に記載の集積回路装置を含むことを特徴とする電子機器。
- 請求項1乃至9のいずれか一項に記載の集積回路装置を含むことを特徴とする移動体。
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JP2020128093A JP7463895B2 (ja) | 2020-07-29 | 2020-07-29 | 集積回路装置、電子機器及び移動体 |
CN202110855133.7A CN114067762B (zh) | 2020-07-29 | 2021-07-27 | 集成电路装置、电子设备以及移动体 |
US17/386,815 US11348499B2 (en) | 2020-07-29 | 2021-07-28 | Integrated circuit device, electronic apparatus, and vehicle |
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JP2002268034A (ja) | 2001-03-12 | 2002-09-18 | Matsushita Electric Ind Co Ltd | 液晶表示装置とその駆動方法および情報表示装置 |
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