Touch display panel and manufacturing method thereof, display apparatus and driving method therefor

Patent metadata

Field	Value
Publication number	US-2017220184-A1
Application number	US-201615279121-A
Country	US
Kind code	A1
Filing date	Sep 28, 2016
Priority date	Feb 3, 2016
Publication date	Aug 3, 2017
Grant date	—

Abstract

A touch display panel and a manufacturing method thereof, a display apparatus comprising the touch display panel and a driving method for the display apparatus are provided. The touch display panel comprises a first substrate and a second substrate, which are disposed opposite to each other, strip-like touch sensing electrodes being provided at a side of the first substrate distal to the second substrate, the second substrate comprising block-like common electrodes, and the block-like common electrodes being arranged in strips, wherein, orthogonal projections of the strip-like touch sensing electrodes on the first or second substrate intersect with the strips of the block-like common electrodes, each strip of the common electrodes includes a plurality of driving electrodes and a plurality of pressure sensing electrodes, and the driving electrodes and the pressure sensing electrodes are arranged alternatively in a same layer.

First claim

1 . A touch display panel, comprising a first substrate and a second substrate, which are disposed opposite to each other, strip-like touch sensing electrodes being provided at a side of the first substrate distal to the second substrate, the second substrate comprising block-like common electrodes, and the block-like common electrodes being arranged in strips, wherein, orthogonal projections of the strip-like touch sensing electrodes on the first substrate or the second substrate intersect with those of the strips of the block-like common electrodes, each strip of the common electrodes includes a plurality of driving electrodes and a plurality of pressure sensing electrodes, and the driving electrodes and the pressure sensing electrodes are arranged alternatively in a same layer.

2 . The touch display panel of claim 1 , wherein, when a touch terminal touches a surface of the touch display panel, a touch capacitance is generated between the touch sensing electrodes and the driving electrodes, so that the touch display panel generates a touch control signal in accordance with the touch capacitance.

3 . The touch display panel of claim 1 , wherein orthogonal projections of the touch sensing electrodes on the first substrate cover orthogonal projections of the pressure sensing electrodes on the first substrate.

4 . The touch display pane of claim 3 , wherein, when a touch terminal touches a surface of the touch display panel, the touch sensing electrodes prevent a parasitic capacitance from being generated between the touch terminal and the pressure sensing electrodes.

5 . The touch display panel of claim 1 , wherein, the touch sensing electrodes are arranged in rows, and the common electrodes are arranged in columns.

6 . The touch display panel of claim 1 , wherein, the touch display panel is an improved fringe filed switching type display panel.

7 . A display apparatus, comprising the touch display panel of claim 1 and a middle frame, wherein the middle frame is configured to support the touch display panel and is made of a conductive metal, and the middle frame is provided below the touch display panel.

8 . The display apparatus of claim 7 , wherein, when a touch terminal touches a surface of the touch display panel, a pressure capacitance is generated between the pressure sensing electrodes and the middle frame, so that the display apparatus generates a pressure control signal in accordance with the pressure capacitance.

9 . The display apparatus of claim 7 , wherein orthogonal projections of the touch sensing electrodes on the first substrate cover orthogonal projections of the pressure sensing electrodes on the first substrate.

10 . The display apparatus of claim 7 , wherein, the touch sensing electrodes are arranged in rows, and the common electrodes are arranged in columns.

11 . A manufacturing method of the touch display panel of claim 1 , comprising steps of:
forming the first substrate; forming the second substrate; assembling the first substrate with the second substrate to form a cell; forming the touch sensing electrodes at the side of the first substrate distal o the second substrate.

12 . The manufacturing method of claim 11 , wherein orthogonal projections of the touch sensing electrodes on the first substrate cover orthogonal projections of the pressure sensing electrodes on the first substrate.

13 . The manufacturing method of claim 11 , wherein, the touch sensing electrodes are arranged in rows, and the common electrodes are arranged in columns.

14 . A driving method for the display apparatus of claim 7 , comprising:
when a touch terminal touches a surface of the touch display panel, detecting a pressure capacitance generated between the pressure sensing electrodes and the middle frame, and generating a pressure control signal in accordance with the pressure capacitance.

15 . The driving method of claim 14 , further comprising:
when a touch terminal touches the surface of the touch display panel, detecting a touch capacitance generated between the touch sensing electrodes and the driving electrodes, and generating a touch control signal in accordance with the touch capacitance.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Liu Yingming
• Dong Xue
• Xue Hailin
• Chen Xiaochuan
• Wang Haisheng
• Ding Xiaoliang
• Zhao Weijie
• Yang Shengji
• Wang Lei
• Yang Ming
• Li Changfeng
• Liu Wei
• Wang Pengpeng

Classifications

• G06F2203/04105

  Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position · CPC title

• G06F3/0414 Primary

  using force sensing means to determine a position · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/044

  by capacitive means · CPC title