Liquid crystal display device integrated with touch screen panel

• US 9,436,309 B2
• Filed: 08/27/2014
• Issued: 09/06/2016
• Est. Priority Date: 09/05/2013
• Status: Expired due to Fees

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Jeong, Wee-Joon
• Primary Examiner(s): Nguyen, Sang V
• Application Number:
  US14/469,912
• Publication Number:
  US 20160062523A1
• Time in Patent Office: 741 Days
• Field of Search: 349/58
• US Class Current: 1/1
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/1336 Illuminating devices
• CPC Class Codes: G02F 1/133602 Direct backlight
• CPC Class Codes: G02F 1/133613 characterized by the sequence of light sources
• CPC Class Codes: G02F 2201/46 Fixing elements
• CPC Class Codes: G06F 1/1607 Arrangements to support accessories mechanically attached to the display housing G06F1/1603, G06F1/1605 take precedence
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display

Abstract

A liquid crystal display device integrated with a touch screen panel includes a liquid crystal panel, a touch screen panel, a backlight unit, a mold frame and a fixing member. The liquid crystal panel displays an image. The touch screen panel is provided on a front side of the liquid crystal panel. The backlight unit irradiates light onto the liquid crystal panel. The mold frame accommodates and supports the liquid crystal panel and the backlight unit. The fixing member is fastened to one side of the mold frame to fix the touch screen panel on the liquid crystal panel.

Claims

1. A liquid crystal display device integrated with a touch screen panel, comprising:

a liquid crystal panel configured to display an image;

a touch screen panel disposed on an upper side of the liquid crystal panel, the touch screen panel is directly disposed on the liquid crystal panel through optical bonding, and is an outermost element on the viewer'"'"'s side;

a backlight unit configured to provide light to the liquid crystal panel;

a mold frame comprising a central hole through an entire thickness of the mold frame, a first mounting portion surrounding the central hole, and a second mounting portion surrounding the first mounting portion; and

a fixing member is directly fastened to a side of the touch screen panel by an adhesive member,

wherein;

the liquid crystal panel is disposed on the first mounting portion and the touch screen panel is disposed on the second mounting portion; and

the second mounting portion of the mold frame comprises a groove, the fixing member being detachably inserted into the groove.

2. The liquid crystal display device of claim 1, wherein the fixing member is hook-shaped.

3. The liquid crystal display device of claim 2, wherein a distal end of the hook-shaped fixing member is protruded outward at the one side of the mold frame.

4. The liquid crystal display device of claim 1, wherein the fixing member and the mold frame comprise the same material.

5. The liquid crystal display device of claim 1, wherein the fixing member comprises a plastic material.

6. The liquid crystal display device of claim 1, further comprising an adhesive member disposed between and contacting the fixing member and the touch screen panel.

7. The liquid crystal display device of claim 6, wherein the adhesive member comprises a double-sided tape.

8. The liquid crystal display device of claim 1, further comprising a latching member alternately disposed with the fixing member in the groove of the second mounting portion.

9. The liquid crystal display device of claim 8, wherein the latching member comprises a hook protruded inward from a surface of the second mounting portion.

10. The liquid crystal display device of claim 1, further comprising an impact-absorbing member disposed on the first mounting portion of the mold frame and configured to absorb an impact of the liquid crystal panel.

11. The liquid crystal display device of claim 10, wherein the impact-absorbing member comprises silicon.

12. The liquid crystal display device of claim 1, further comprising a bottom cover disposed at a lower portion of the mold frame and housing the liquid crystal panel and the backlight unit.