Patent Application
20080284747
1. Field of the Invention
The present invention relates to display devices and, particularly, to a touch control display device.
2. Description of Related Art
With the rapid developments of science and technology, portable electronic devices, such as notebook computer, personal digital assistant (PDA), mobile phone, global positioning system (GPS) and multimedia player, are widely used in people's life. A typical portable electronic device is equipped with a number of mechanical keys, and a display for displaying information (e.g., characters, pictures, etc.) thereon. The displayed information is inputted by the mechanical keys. However, with the developing trends of the portable electronic devices becoming more and more multifunctional and miniaturized, the approach of pressing mechanical keys would make the input of information for display more complex and therefore unsatisfactory.
Therefore, what is needed is a touch control display device, which would greatly simplify the input function of the portable electronic device.
A touch control display device, according to an embodiment, includes a base plate, a touch screen panel arranged on the base plate, a plurality of touch-controlled light-emitting modules arranged on the base plate, and a plurality of trigger electrodes arranged on the touch screen panel. Each touch-controlled light-emitting module includes a light-emitting diode and a silicon controlled rectifier electrically connected to the corresponding light-emitting diode in series. The silicon controlled rectifier is configured for turning on or off the corresponding light-emitting diode based on a control signal. The trigger electrodes spatially correspond to the respective touch-controlled light-emitting modules. Each trigger electrode is electrically connected to one corresponding silicon controlled rectifier and configured for receiving the control signal and transmitting the control signal to the corresponding silicon controlled rectifier.
The present touch control display device is equipped with the touch screen panel having the plurality of trigger electrodes arranged thereon, and the plurality of touch-controlled light-emitting modules, each having the silicon controlled rectifier and the light-emitting diode, thus display information can be inputted by directly touching the touch screen panel instead of pressing mechanical keys. Accordingly, the present touch control display device can greatly simplify the input function of the portable electronic device.
Other advantages and novel features of the present invention will become more apparent from the following detailed description of at least one preferred embodiment when taken in conjunction with the accompanying drawings.
Many aspects of the present touch control display device can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, the emphasis instead being placed upon clearly illustrating the principles of the present touch control display device. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Reference will now be made to the drawings to describe, in detail, at least one preferred embodiment of the present infrared remote control module.
Referring to
The touch screen panel 110 includes a plurality of through holes 111 defined therein. The plurality of touch-controlled light-emitting modules 130 are aligned to form an array. Each of the touch-controlled light-emitting modules 130 corresponds to a pixel of the present touch control display device 100. Each touch-controlled light-emitting module 130 includes a light-emitting diode 131 received in the respective through hole 111, and a silicon controlled rectifier 132 electrically connected to the corresponding light-emitting diode 131. The silicon controlled rectifier 132 is configured for turning on/off the corresponding light-emitting diode 131 based on a control signal.
The plurality of trigger electrodes 140 are arranged on the touch screen panel 110 to form an array. The trigger electrodes 140 spatially correspond to the respective touch-controlled light-emitting modules 130. Each trigger electrode 140 is electrically connected to one corresponding silicon controlled rectifier 132 and configured for receiving the control signal and transmitting the control signal to the corresponding silicon controlled rectifier 132. Each trigger electrode 140 may be ring-shaped and transparent.
The base plate 120 has a first surface 121 and an opposite second surface 122. The light-emitting diodes 131 of the touch-controlled light-emitting modules 130 are arranged on the first surface 121 of the base plate 120 and received in the respective through holes 111 of the touch screen panel 110. The silicon controlled rectifiers 132 of the touch-controlled light-emitting modules 130 are arranged on the opposite second surface 122 of the base plate 120. A transparent plastic material is filled in each of the through holes 111 of the touch screen panel 110. A plurality of electrically conductive members 160 extend through the touch screen panel 110 and the base plate 120, and electrically connect the trigger electrodes 140 with the respective silicon controlled rectifiers 132 The electrically conductive members 160 may be made of copper.
Each silicon controlled rectifier 132 has a gate terminal 1320 (as shown in
The present touch control display device 100 further includes a trigger device 150 having a first terminal 151 and a second terminal 152. The first terminal 151 thereof can output the high-voltage control signal, and the second terminal 152 thereof can output the zero-voltage control signal. Thus, if the first terminal 151 of the trigger device 150 electrically contacts one trigger electrode 140, the corresponding silicon controlled rectifier 132 electrically connecting the trigger electrode 140 is turned on; and if the second terminal 152 of the trigger device 150 electrically contacts one trigger electrode 140, the corresponding silicon controlled rectifier 132 is turned off. In this exemplary embodiment, the trigger device 150 is a touch control pen, and has an elongated body. Users may employ the trigger device 150 to respectively turn on or off the corresponding light-emitting elements 131. As a result, expected information will be displayed on the touch control display device 100 by turn on or off the corresponding light-emitting elements 131.
Referring to
Due to the fact that the present touch control display device 100 is equipped with the touch screen panel 110 having the trigger electrodes 140 arranged thereon, and the plurality of touch-controlled light-emitting modules 130, each having the silicon controlled rectifier 132 and the light-emitting diode 131, thus display information can be inputted by directly touching the touch screen panel 110 instead of pressing mechanical keys. Accordingly, the present touch control display device 100 can greatly simplify the input function of the portable electronic device.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
| Number | Date | Country | Kind |
|---|---|---|---|
| 200710074372.9 | May 2007 | CN | national |
