US 11,231,797 B2Granted

Touch display device and touch display module

AssigneeOpto Plus LED Corp.

InventorsChien-Wen Chen, Chen-Chen Ou Yang, Kai-Chieh Yang

Life of this patent

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Abstract

A touch display device includes a printed circuit board and a cover. The printed circuit board has a top surface, a bottom surface and soldering points. The printed circuit board includes a first printed circuit, a light element and a second printed circuit. A part of the first printed circuit is on the top surface or the bottom surface and connected with the corresponding soldering point. The light emitting element is on the top surface and electrically connected to the first printed circuit. On the top surface, the second printed circuit does not overlap with the first printed circuit. The cover covers the printed circuit board. The cover has light transmission areas which are aligned with the light elements. The second printed circuit is configured to provide a capacitance value coupled to a capacitive sensing element coupled between the second printed circuit and the cover.

Claims14

Dependent claims

A touch display device, comprising:

a printed circuit board, having a top surface, a bottom surface and a plurality of soldering points, wherein the printed circuit board comprises:
a first printed circuit, wherein a part of the first printed circuit is on at least one of the top surface and the bottom surface of the printed circuit board, and the part of the first printed circuit is connected with the corresponding soldering point;
a plurality of light emitting elements, located on the top surface of the printed circuit board and electrically connected to the first printed circuit;
and
a second printed circuit, wherein the second printed circuit does not overlap with the first printed circuit on the top surface;
and
a cover, covering the printed circuit board, wherein the cover has light transmission areas respectively aligned with the light emitting elements, wherein the second printed circuit is configured to provide a capacitance value coupled to a capacitive sensing element coupled between the second printed circuit and the cover.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/841,696Filed 7 Apr 2020
Priority: TW 10811387819 Apr 2019
Published: US 2020/0333908 A122 Oct 2020
Granted: 25 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

G06F 3/0412
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: digitisers structurally integrated in a display
H05K 1/117
Printed elements for providing electric connections to or between printed circuits: pads along the edge of rigid circuit boards, e.g. for…
G06F 3/044
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: by capacitive means
G09F 9/3023
Characterised by the form or geometrical disposition of the individual elements: segmented electronic displays