# US 8,785,795 B2 · Laptop keyboard structure

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- Number: US 8,785,795 B2
- Document ID: US8785795B2
- Status: Granted
- Kind: B2
- Application number: 13/419,169
- Filed: 2012-03-13
- Published: 2013-07-11
- Granted: 2014-07-22
- Earliest claimed: 2012-01-11
- Assignees: Jiangsu Transimage Technology Co., Ltd.
- Applicants: Weimin Zou
- Inventors: Weimin Zou
- Web page: https://patentgrep.com/patent/US8785795B2

## CPC

- H01H 13/704: characterised by the layers, e.g. by their material or structure (H01H13/703 takes precedence)
- G06F 1/1662: {Details related to the integrated keyboard}
- G06F 3/0202: {Constructional details or processes of manufacture of the input device}
- H01H 13/83: characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
- H01H 2209/026: metallic
- H01H 2215/006: Only mechanical function
- H01H 2219/062: Light conductor
- H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

The present invention discloses a laptop keyboard structure, comprising a base board, a membrane functioning as keys, silica gel keys, scissor-switches and keycaps, wherein the silica gel keys are directly attached to the base board, the keycaps are connected to the base board via the scissor-switches, and beneath the base board is disposed with the membrane, which is arranged with apertures for computer assembly. As the membrane provided in the invention is disposed beneath the base board, structure bores are not required to be arranged on the membrane to cooperate with the key slots, so that fewer structure bores are needed and the fabrication of the membrane is further simplified.

## Claims

### Claim 1

A laptop keyboard structure, comprising:
a base board having silica gel keys directly connected thereto;
keycaps engaging the silica gel keys and connected to the base board via scissor-switches; and
a membrane disposed beneath the base board and functioning as keys, the membrane including:
a light guide module having a front side facing the base board and an opposite rear side,
a light reflecting layer and anti-dazzling layer disposed on the front side of the light guide module,
light emitting diode lights disposed over the light reflecting layer and anti-dazzling layer to provide light to the base board, and
a luminous layer disposed on the rear side of the light guide module.

### Claim 2 (depends on 1)

The laptop keyboard structure according to claim 1, wherein the base board is made of an aluminum plate, an iron plate or an alloy plate.

### Claim 3 (depends on 1)

The laptop keyboard structure according to claim 1, wherein the membrane is disposed with a light guide plate to form the light guide module, on which the light emitting diode lights are attached to provide light.

### Claim 4 (depends on 3)

The laptop keyboard structure according to claim 3, wherein the light reflecting layer and an anti-dazzling layer are coated with black and white layers of printing ink, while the luminous layer is coated with silver or gloss silver printing ink.

### Claim 5 (depends on 1)

The laptop keyboard structure according to claim 1, wherein the light reflecting layer and anti-dazzling layer are coated with black and white layers of printing ink, and the luminous layer is coated with silver or gloss silver printing ink.

### Claim 6 (depends on 1)

The laptop keyboard structure according to claim 1, wherein the light emitting diode lights are disposed immediately beneath the base board without an intervening substrate.

### Claim 7 (depends on 1)

The laptop keyboard structure according to claim 1 wherein the membrane is disposed immediately beneath the base board without a separate intervening substrate.