Liquid crystal display device having touch and three-dimensional display functions and method for manufacturing the same

• US 9,141,223 B2
• Filed: 12/14/2012
• Issued: 09/22/2015
• Est. Priority Date: 12/15/2011
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Lee, So-Hyung, Kang, Byung-Koo, Kim, Dong-Sup, Han, Jong-Hyun
• Primary Examiner(s): SHERMAN, STEPHEN G
• Application Number:
  US13/715,316
• Publication Number:
  US 20130154977A1
• Time in Patent Office: 1,012 Days
• Field of Search: 345173-178, 345/104, 349/12, 349/187, 349/139, 178 1801- 1809, 178/18.11, 438/30
• US Class Current: 1/1
• CPC Class Codes: G02B 30/00 Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images in microscopes G02B21/22
• CPC Class Codes: G02F 1/133 Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G3/36
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.

Claims

1. A liquid crystal display device comprising a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer,

wherein the touch and three-dimensional image display panel comprises:

a lower substrate;

first and second electrodes for realizing a three-dimensional image disposed on a upper side of the lower substrate;

a upper substrate;

third and fourth electrodes for sensing touch disposed on a lower side of the upper substrate and a common electrode for realizing the three-dimensional image disposed on the lower side of the upper substrate;

a liquid crystal layer filled between the upper and lower substrates;

routing lines for realizing the three-dimensional image on an edge of the upper side of the lower substrate; and

routing lines for sensing touch on an edge of the lower side of the upper substrate, wherein the third and fourth electrodes correspond one-to-one to the routing lines for sensing touch.

2. The liquid crystal display device according to claim 1, wherein the upper substrate is formed of a tempered glass substrate.

3. The liquid crystal display device according to claim 1, wherein the upper substrate or the lower substrate further comprises a black matrix layer.

4. The liquid crystal display device according to claim 1, wherein the upper substrate is formed of a polarized glass substrate having a hard-coated surface.

5. The liquid crystal display device according to claim 1, wherein an insulating film is disposed on the common electrode, and a column spacer is formed on the insulating film.

6. The liquid crystal display device according to claim 5, wherein the column spacer is configured to allow the liquid crystal layer to be filled between the upper and lower substrates.