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Display device and driving method

A technology of a display device and a driving method, which is applied to static indicators, instruments, and electrical digital data processing, etc., can solve problems such as high cost and complex structure of a touch display device, and achieve simple structure, improved reliability, and damage prevention Effect

Inactive Publication Date: 2015-08-12
INTERFACE OPTOELECTRONICS SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the structure of the touch display device is more complicated and the cost is higher

Method used

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Embodiment Construction

[0025] Please also refer to Figure 1-3 , figure 1 is a three-dimensional exploded schematic diagram of the display device 100 according to the first embodiment of the present invention, figure 2 Yes figure 1 The three-dimensional assembly diagram of the display device 100 shown, image 3 for figure 2 A schematic cross-sectional structure diagram of the display device 100 along line III-III is shown.

[0026] see figure 1 , the display device 100 is used to display images, and is also used to identify the operation elements placed on the display device 100, such as the positions where touch operations occur on elements such as fingers and stylus pens, and is also used to identify the patterns of the operation elements, such as finger prints.

[0027] The display device 100 includes a display module 110 (such as figure 2 shown) and ultrasonic sensing module 120 (such as figure 2 shown). Wherein, the display module 110 is used for displaying images. In this embodime...

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Abstract

A display device and a driving method thereof are disclosed. The display device comprises an image display module group and a supersonic wave sensing module group. The image display module group comprises a first substrate, a second substrate, and a display medium clamped between the first substrate and the second substrate. The first substrate comprises at least one data line and at least one first display electrode. The second substrate comprises at least one second display electrode. The first display electrode and the second display electrode are used for driving the display medium to display an image. The supersonic wave sensing module group comprises a supersonic wave emission unit and a supersonic wave reception element. The supersonic wave emission unit is arranged on the first substrate and used for emitting a supersonic wave signal. The supersonic wave reception element is arranged on the second display electrode and far from the surface of the second substrate, and is used for receiving and converting the supersonic wave signal into a touch control sensing signal and sending the touch control sensing signal to the second display electrode. The date line outputs a data signal to the first display electrode to display an image or reads the touch control sensing signal from the second display electrode to identify touch operation at different time points.

Description

technical field [0001] The present invention relates to a display device, in particular to a display device which has a display function and uses ultrasonic waves to sense touch operations. Background technique [0002] In the existing touch display device, the display module used for image display and the touch sensing module are set independently. A conventional sensing device usually includes an acoustic wave transmitting unit, an acoustic wave receiving unit, and an array of switching elements for detecting object characteristics (such as fingerprints). It can be seen that the structure of the touch display device is relatively complicated and the cost is relatively high. Contents of the invention [0003] In view of this, it is necessary to provide a display device capable of image display and touch recognition with a relatively simple structure. [0004] A display device, the display device includes an image display module and an ultrasonic sensing module, the imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G06F3/043G02F1/133
Inventor 陈俊吉黄上育陈祯佑王世育
Owner INTERFACE OPTOELECTRONICS SHENZHEN