Field of the Invention
The present invention relates, in general, to a haptic apparatus and, more particularly, to a locally vibrating haptic apparatus and a method for locally vibrating the haptic apparatus, capable of vibrating a desired position of the haptic apparatus or adjusting a vibrating position by improving arrangement of vibrators and a frequency control method, and to a haptic display apparatus and a vibration panel having a plurality of excitation points, capable of isolating vibration from a housing to vibrate a desired position of a display part or adjust a vibrating position, vibrating a desired position of the display part or adjusting a vibrating position.
Description of Related Art
A display apparatus having a touch window is being widely spread as an improvement in sensitive manipulation of an interface is recently demanded. The touch window is a pointer input apparatus that is similar to a mouse, and is operated in conjunction with an image display apparatus such as a light emitting diode (LED) or a liquid crystal display (LCD).
The touch window is an apparatus that directly points a position by hand, or moves a pointer and inputs a desired instruction through a specific movement while being in contact with the touch window using an exclusive input tool such as stylus.
Such a touch window is configured to be intuitively used by stimulating a user sense, mainly, sight and hearing. Recently, an apparatus employing a haptic technology using a sense of touch is a growing trend.
The haptic technology is being widely applied to an apparatus having a display, such as a mobile apparatus, a monitor or a television.
Generally, a touch screen that is an LCD for forming an image and inputting a command through touch is provided on a front of the mobile apparatus. In order to execute a command displayed on the touch screen, a pointer is moved around the screen by a user manipulation. When the pointer reaches a desired menu or position, the command is executed by tapping at the desired menu or position with a finger.
In order to improve the sensitive manipulation of the touch screen, a vibrator is provided to generate vibration. The vibrator is generally received in a main body of the mobile apparatus to transmit vibration to the main body or to the window.
If a user inputs a command by touching a specific portion using a finger or a stylus, vibration is generated by the vibrator through which rated voltage flows, thus feeling vibration.
The vibrator may use a vibration motor or a linear actuator. Such a vibrator transmits vibration to the screen or the main body.
However, such a vibrator serves to simply transmit vibration. Thus, technical development for delicate and precise vibration control is required to achieve an original function of the haptic apparatus.
Further, a different magnitude of vibration may be frequently generated for each portion of the screen according to a location of the vibrator. The vibrator arranged as such may generate a larger magnitude of vibration in the main body than in the screen.