Display device and electronic watch with the display device
A technology of a display device and a liquid crystal display device, which is applied in the field of graphic display devices, gradient display characters, and electronic watches, and can solve the problems of lack of decoration, visibility (poor recognition, monotonous changes, etc.), and achieve improved color and decoration. High performance, improved visibility and low price
Active Publication Date: 2004-08-04
CASIO COMPUTER CO LTD
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Problems solved by technology
[0003] However, because the original electronic watch uses a black and white liquid crystal display device to display text, graphics, etc., the change of composition is monotonous, not only lacks decoration, but also has poor visibility (recognition).
Using a color liquid crystal display device to display text and graphics in color can improve decoration and visibility (recognizability), but the price of a color liquid crystal display device is high, which not only increases the cost of the electronic watch, but also increases power consumption. , the problem of shortened battery life
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[0018] Embodiments of the present invention will be described below with reference to the drawings. figure 1 It is a plan view of an electronic watch (hereinafter referred to as an electronic watch) related to an embodiment of the present invention. The circular watch case 1 is equipped with a glass watch cover 2, and a liquid crystal display device 3 is arranged under the glass watch cover 2, and a ring-shaped minute mark showing the hour scale is also printed on the outer circumference of the liquid crystal display device 3. The spacer 4 is further equipped with a minute hand 5 and an hour hand 6 rotatably supported at the center of the liquid crystal display device 3 . In addition, an EL (electroluminescence) element 7 for switching and illuminating the liquid crystal display device 3 from inside is provided on the outer peripheral surface of the watch case 1 (see image 3 ), the mode switching key 9 for switching the electronic watch action mode, and the city switching ke...
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Display device and electronic watch with the display device. A display apparatus is provided with a display member which is printed in gradations of color from a first color to a second color from one side of the member to other side, and an electro-optical display device having plural dot display sections disposed on the display member. The plural dot display sections are selectively driven, to display characters, images, etc. in gradations of color. The display apparatus which is simple in structure and low in manufacturing cost advantages to improve image and / or character discrimination and is used for an adornment purpose.
Description
technical field [0001] The invention relates to a display device and an electronic watch for gradually displaying characters and graphics. Background technique [0002] As described in JP-A-8-220263 and JP-A-57-101788, in order to improve the decoration and visibility (visibility) of electronic watches, it has been considered to use a dot array display device to dynamically display text and graphics etc. [0003] However, since the conventional electronic watches use black and white liquid crystal display devices to display characters, graphics, etc., the changes in the composition are monotonous, not only lacking in decoration, but also poor in visibility (recognition). Using a color liquid crystal display device to display text and graphics in color can improve decoration and visibility (recognizability), but the price of a color liquid crystal display device is high, which not only raises the cost of the electronic watch, but also increases power consumption. , The prob...
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IPC IPC(8): G04G9/00G02F1/13G02F1/1335G09F9/30G09G3/36
CPCG02F1/133514
Inventor 三宅毅
Owner CASIO COMPUTER CO LTD