Reflective liquid crystal display and method of assembling the same

1. A reflective liquid crystal display comprising:

a transparent electrode;

a reflective pixel electrode provided as facing the transparent electrode with a gap;

a liquid crystal layer provided in the gap between the transparent electrode and the reflective pixel electrode; and

a work-function adjusting layer provided directly on the reflective pixel electrode, an entire work function of the work-function adjusting layer and the reflective pixel electrode being adjusted within ±2% of a work function of the transparent electrode.

2. The reflective liquid crystal display according to claim 1 wherein the entire work function is an average of a work function of the work-function adjusting layer and a work function of the reflective pixel electrode.

3. The reflective liquid crystal display according to claim 1 wherein the transparent electrode includes indium tin oxide and the reflective pixel electrode includes aluminum.

4. The reflective liquid crystal display according to claim 3 wherein the work-function adjusting layer includes a material selected from the group consisting of nickel, rhodium, palladium and platinum.

5. The reflective liquid crystal display according to claim 3 wherein the work-function adjusting layer includes an oxide of a material selected from the group consisting of nickel, rhodium, palladium and platinum.

6. The reflective liquid crystal display according to claim 1 wherein the transparent electrode includes indium tin oxide and the reflective pixel electrode includes silver.

7. The reflective liquid crystal display according to claim 6 wherein the work-function adjusting layer includes a material selected from the group consisting of nickel, rhodium, palladium and platinum.

8. The reflective liquid crystal display according to claim 6 wherein the work-function adjusting layer includes an oxide of a material selected from the group consisting of nickel, rhodium, palladium and platinum.

9. A reflective liquid crystal display comprising:

a reflective pixel electrode;

a liquid crystal layer provided over the reflective pixel electrode; and

a transparent electrode provided as facing the reflective pixel electrode with a gap, the liquid crystal layer being interposed between the transparent electrode and the reflective pixel electrode, the transparent electrode being made of a material containing a specific metal so that a work function of the transparent electrode lies within ±2% of a work function of the reflective pixel electrode, wherein the material is indium tin oxide and the metal is aluminum contained in the transparent electrode in a range from 5 to 10 weight % when the reflective pixel electrode is made of aluminum.

10. A reflective liquid crystal display comprising:

a reflective pixel electrode;

a liquid crystal layer provided over the reflective pixel electrode; and

a transparent electrode provided as facing the reflective pixel electrode with a gap, the liquid crystal layer being interposed between the transparent electrode and the reflective pixel electrode, the transparent electrode being made of a material containing a specific metal so that a work function of the transparent electrode lies within ±2% of a work function of the reflective pixel electrode, wherein the specific material is indium tin oxide and the metal is aluminum contained in the transparent electrode in a range from 5 to 10 weight % when the reflective pixel electrode is made of silver.

11. A method of assembling a reflective liquid crystal display comprising the steps of:

forming a reflective pixel electrode on a first substrate;

forming a work-function adjusting layer directly on the reflective pixel electrode;

forming a transparent electrode on a second substrate;

arranging the first and second substrates so that the reflective pixel electrode having the work-function adjusting layer formed thereon and the transparent electrode face each other with a gap; and

providing a liquid crystal layer in the gap between the transparent electrode and the reflective pixel electrode having the work-function adjusting layer formed thereon;

wherein an entire work function of the work-function adjusting layer and the reflective pixel electrode is adjusted within ±2% of a work function of the transparent electrode.

12. A method of assembling a reflective liquid crystal display comprising the steps of:

forming a reflective pixel electrode on a first substrate;

forming a transparent electrode made of a material containing a specific metal so that a work function of the transparent electrode lies within ±2% of a work function of the reflective pixel electrode, on a second substrate;

arranging the first and second substrates so that the reflective pixel electrode and the transparent electrode face each other with a gap; and

providing a liquid crystal layer in the gap between the transparent electrode and the reflective pixel electrode;

wherein the material is indium tin oxide and the metal is aluminum contained in the transparent electrode in a range from 5 to 10 weight % when the reflective pixel electrode is made of aluminum.

13. A method of assembling a reflective liquid crystal display comprising the steps of:

forming a reflective pixel electrode on a first substrate;

forming a transparent electrode made of a material containing a specific metal so that a work function of the transparent electrode lies within ±2% of a work function of the reflective pixel electrode, on a second substrate;

arranging the first and second substrates so that the reflective pixel electrode and the transparent electrode face each other with a gap; and

providing a liquid crystal layer in the gap between the transparent electrode and the reflective pixel electrode; wherein the material is indium tin oxide and the metal is aluminum contained in the transparent electrode in a range from 5 to 10 weight % when the reflective pixel electrode is made of silver.