Liquid crystal display device and mobile phone

• US 6,812,981 B2
• Filed: 06/08/2001
• Issued: 11/02/2004
• Est. Priority Date: 08/10/2000
• Status: Expired due to Term

• Current Assignee: Panasonic Liquid Crystal Display Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Hitachi Device Engineering Co., Ltd., Hitachi, Ltd.
• Inventors: Yoshino, Yuichi
• Primary Examiner(s): Thomas, Tom
• Assistant Examiner(s): Warren, Matthew E.
• Application Number:
  US09/875,883
• Publication Number:
  US 20020021391A1
• Time in Patent Office: 1,243 Days
• Field of Search: 349/76, 349/109, 349/110, 349/113, 349/114, 349/179
• US Class Current: 349/114
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133391 Constructional arrangement for sub-divided displays
• CPC Class Codes: G02F 1/133555 Transflectors
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03

Abstract

The present invention is provided for obtaining a liquid crystal display device and a mobile phone which exhibit the low power consumption and do not damage the display quality. To this end, a display part of the liquid crystal display device is divided into two regions, wherein one region performs a display in a semi-transmission type or in a reflection type and the other region performs a display in a transmission type. Further, the display is performed in a state that the liquid crystal display device is incorporated into the mobile phone.

Claims

1. A liquid crystal display device characterized in that a display part is divided into two regions, wherein one region is displayed in a semi-transmission type or in a reflection type which enables display by reflecting light from an observation side of the liquid crystal display device and the other region is displayed in a transmission type.

2. A liquid crystal display device according to claim 1, wherein the liquid crystal display device is incorporated into a mobile phone.

3. A liquid crystal display device according to claim 1, further comprising a backlight.

4. A liquid crystal display device characterized in that a display part is divided into at least a region which performs a display of a small information quantity and a region which performs a display of a large information quantity, the region which performs a display of a small information quantity performs the display in a semi-transmission type or in a reflection type and the region which performs a display of a large information quantity performs the display in a transmission type.

5. A liquid crystal display device according to claim 4, wherein the region which performs the display of a large information quantity includes a black matrix and the black matrix is formed such that the black matrix gets over a boundary between the region which performs the display of a large information quantity and the region which performs the display of a small information quantity.

6. A liquid crystal display device according to claim 4, wherein the region which performs the display of a large information quantity adopts a color display and the region which performs the display of a small information quantity adopts a monochromatic display.

7. A liquid crystal display device according to claim 4, wherein the region which performs the display of a small information quantity displays at least one of time, a received incoming signal state and a remaining battery quantity and the region which performs the display of a large information quantity displays image data.

8. A liquid crystal display device according to claim 4, wherein the liquid crystal display device is incorporated into a mobile phone.

9. A liquid crystal display device according to claim 4, further comprising a backlight.

10. A mobile phone characterized in that the mobile phone includes a liquid crystal display device and a display part of the liquid crystal display device is divided into at least a region which performs a display of a small information quantity and a region which performs a display of a large information quantity, the region which performs a display of a small information quantity performs the display in a semi-transmission type or in a reflection type and the region which performs a display of a large information quantity performs the display in a transmission type.

11. A mobile phone according to claim 10, further comprising a backlight.

12. A liquid crystal display device characterized in that a display part is divided into a first display part and a second display part, the first display part being a region which enables display in a semi-transmission type or in a reflection type, and the second display part being a region which enables display in a transmission type, the second display part including a black matrix, the black matrix being formed so that the black matrix extends beyond a boundary between the first display part and the second display part.

13. A liquid crystal display device according to claim 12, wherein the first display part is a region which performs a display of a small information quantity, and the second display part is a region which performs a display of a large information quantity.

14. A liquid crystal display device according to claim 12, wherein the first display part is a region which performs monochromatic display, and the second display part is a region which performs color display.

15. A liquid crystal display device according to claim 12, wherein the first display part displays at least one of time, a received incoming signal state and a remaining battery quantity, and the second display part displays image data.

16. A liquid crystal display device according to claim 12, further comprising a backlight.

17. A mobile phone comprising a liquid crystal display device characterized in that a display part is divided into a first display part and a second display part, the first display part being a region which enables display in a semi-transmission type or in a reflection type, and the second display part being a region which enables display in a transmission type, the second display part including a black matrix, the black matrix being formed so that the black matrix extends beyond a boundary between the first display part and the second display part.