Liquid crystal display unit and illuminating control method of pict display section of said liquid crystal display device

• US 5,903,327 A
• Filed: 12/05/1995
• Issued: 05/11/1999
• Est. Priority Date: 12/06/1994
• Status: Expired due to Fees

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Hijii, Kazuyoshi
• Primary Examiner(s): Sikes, William L.
• Assistant Examiner(s): NGO, HUYEN LE
• Application Number:
  US08/567,482
• Time in Patent Office: 1,253 Days
• Field of Search: 349/73, 349/83, 349/142, 349/143, 349/149
• US Class Current: 349/73
• CPC Class Codes: G02F 1/133391 Constructional arrangement for sub-divided displays
• CPC Class Codes: G02F 1/1343 Electrodes reflective electrodes G02F1/133553
• CPC Class Codes: G02F 1/1345 Conductors connecting electrodes to cell terminals

Abstract

A liquid crystal display unit having a dot matrix display section, a pict display section arranged at a different portion from the dot matrix display section and a connection terminal for connecting signal conductors from the dot matrix display section with an external device, wherein the pict display section is divided into a plurality of cells and the signal conductors are connected with the connection terminal via each of the cells.

Claims

1. A liquid crystal display unit having a dot matrix display section, a pict display section arranged at a different portion from said dot matrix display section and a connection terminal for connecting signal conductors from said dot matrix display section with an external device,

said liquid crystal display unit comprising said pict display section divided into a plurality of cells, wherein said signal conductors are connected with said connection terminal via each of said cells.

2. The liquid crystal display unit of claim 1, comprising said pict display section divided into a plurality of cells arranged along said signal conductors.

3. The liquid crystal display unit of claim 1, wherein said signal conductors are segment signal conductors from said dot matrix display section.

4. The liquid crystal display unit of claim 1, wherein said signal conductors are common signal conductors from said dot matrix display section.

5. The liquid crystal display unit of claim 1, comprising a plurality of pict display sections arranged on signal conductors, each of said pict display sections divided into a plurality of cells, wherein said signal conductors are connected with said connection terminal via each of said cells.

6. The liquid crystal display unit of claim 5, wherein said signal conductors are segment signal conductors from said dot matrix display section.

7. The liquid crystal display unit of claim 5, wherein said signal conductors are common signal conductors from said dot matrix display section.

8. A liquid crystal display unit comprising:

a dot matrix display section;

a plurality of common signal conductors connected with said dot matrix display section;

a plurality of segment signal conductors connected with said dot matrix display section;

a connection terminal for connecting said plurality of common signal conductors and said plurality of segment signal conductors with an external device; and

a pict display section arranged on at least one of said segment signal conductors;

wherein

said pict display section is divided along said segment signal conductors into a plurality of cells and said segment signal conductors are connected with said connection terminal via said each cell.

9. The liquid crystal display unit of claim 8, wherein said each cell is connected via a common signal conductor.

10. A liquid crystal display unit comprising:

a dot matrix display section;

a plurality of common signal conductors connected with said dot matrix display section;

a plurality of segment signal conductors connected with said dot matrix display section;

a connection terminal for connecting said plurality of common signal conductors and said plurality of segment signal conductors with an external device; and

a pict display section arranged on at least one of said common signal conductors;

wherein

said pict display section is divided along said common signal conductors into a plurality of cells and said common signal conductors are connected with said connection terminal via said each cell.

11. The liquid crystal display unit of claim 10, wherein said each cell is connected via a segment signal conductor.

12. A control method of illuminating a predetermined pict display section using a plurality of segment signal conductors and common signal conductors connected with a dot matrix display section in a liquid crystal display unit having a dot matrix display section and a plurality of pict display sections, said control method comprising steps of:

dividing each of said plurality of pict display sections into a plurality of cells and connecting a segment signal conductor with a cell;

connecting all cells with a common signal conductor; and

driving cells of a predetermined pict display section by impressing said common signal conductor and all segment signal conductors connected with cells of said predetermined pict display section and illuminating said predetermined pict display section.

13. A control method of illuminating a predetermined pict display section using a plurality of common signal conductors and segment signal conductors connected with a dot matrix display section in a liquid crystal display unit having a dot matrix display section and a plurality of pict display sections, said control method comprising steps of:

dividing each of said plurality of pict display sections into a plurality of cells and connecting a common signal conductor with a cell;

connecting all cells with a segment signal conductor; and

driving cells a predetermined pict display section by impressing said segment signal conductor and all common signal conductors connected with cells of said predetermined pict display section and illuminating said predetermined pict display section.