1. An organic electroluminescent device comprising an organic compound layer provided between a pair of electrodes, which comprises a polymer represented by the formula
wherein Uem represents a unit comprising a metal complex represented by the following Formula (3-C):
wherein RC1 and RC2 each independently represent an alkyl group or an aryl group; RC3, RC4, RC5, and RC6 each independently represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, a halogen atom, or a cyano group; each of nC3 and nC6 represents an integer of 0 to 3; each of nC4 and nC5 represents an integer of 0 to 4; when there are plural RC3s, RC4s, RC5s, or RC6s, the plural RC3s, RC4s, RC5s, or RC6s may be the same as each other or different from each other,
the metal complex being linked to the polymer via RC1;
wherein Up represents a unit comprising a hole transporting moiety having the following structure:
wherein the asterisk * represents a site at which the hole transporting moiety bonds to the polymer; and
each of m and n represents a mole percentage that satisfies the equation of m+n=100 mol %, with the mole percent ratio of m:n being in the range of from 5:95 to 20:80.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An LED display apparatus comprising:
two LED arrays for performing as a light source wherein a plurality of LEDs are arrayed in two rows;
a housing to house the two LED arrays;
two transparent panels of which one side is attached to the housing so that the LEDs can shed light through the side of the transparent panels;
dispersion scratches on the transparent panels for refracting, reflecting and diffusing LED light wherein the dispersion scratches are configured to form a sign; and
two additional panels treated with fluorescent paint for enhancing the intensity of LED light refracted or reflected wherein each panel treated with fluorescent paint is attached to each additional transparent panel on the side having the dispersion scratch and the fluorescent paint glows by reflecting the LED light;
wherein the dispersion scratches are configured to be a letter, sign, symbol or design component for being bright as against the rest of dark plain background of the transparent panels.
2. The LED display apparatus of claim 1, wherein the two LED arrays have different light colors.
3. The LED display apparatus of claim 1, wherein the two transparent panels comprise acrylic.
4. The LED display apparatus of claim 3, wherein the acrylic has the function of edge lighting by the LED light.
5. The LED display apparatus of claim 1, wherein the dispersion scratches are made vertically by means of drill.
6. The LED display apparatus of claim 1, wherein the two additional panels treated with fluorescent paint comprise fluorescent paint which is treated on the panels at the substantially same places as the dispersion scratches are made so that the sign by the dispersion scratches lights more intensely by the fluorescent paint.
7. The LED display apparatus of claim 6, wherein the two additional panels treated with fluorescent paint comprise fluorescent paint of more than one color for various sign design effects.
8. The LED display apparatus of claim 1, wherein the circuit for the plurality of LEDs comprises a capacitor and rectifying diode for stable current.
9. The LED display apparatus of claim 1, wherein the circuit for the plurality of LEDs has an IC control chip.
10. The LED display apparatus of claim 9, wherein the IC control chip has an integrated multivibrator circuit for making the plurality of LEDs flash.
11. The LED display apparatus of claim 1, wherein the circuit for the plurality of LEDs has a photoresistor.
12. The LED display apparatus of claim 1, wherein some or all of the plurality of LEDs are bi-color LEDs.
13. The LED display apparatus of claim 1, wherein some of all of the plurality of LEDs have the function of dimming either by pulse-width modulation or lowering the forward current.
14. The LED display apparatus of claim 1, wherein the inside of housing is made of mirror for maximizing the downward light.
15. The LED display apparatus of claim 1, wherein light scattering panel is attached to the upper side of the transparent panel for evenly scattering the light from LEDs.
16. An LED display apparatus comprising:
a plurality of LED arrays for performing as a light source;
a housing to house the plurality of LED arrays;
a plurality of transparent panels of which one side is attached to the housing so that the LED light can shed light through the side of the transparent panels and the number of transparent panels is the same as the number of LED arrays;
dispersion scratches on the transparent panels for refracting, reflecting and diffusing LED light wherein the dispersion scratches are configured to form a sign; and
a plurality of panels treated with fluorescent paint for enhancing the intensity of LED light refracted or reflected wherein each panel treated with fluorescent paint is attached to each transparent panel on the side having the dispersion scratch and the fluorescent paint glows by reflecting the LED light;
wherein the dispersion scratches are configured to be a letter, sign, symbol or design component for being bright as against the rest of dark plain background of the transparent panels.
17. The LED display apparatus of claim 16, wherein the LED arrays have different light colors.
18. The LED display apparatus of claim 16, wherein the transparent panels comprise acrylic.
19. The LED display apparatus of claim 16, wherein the dispersion scratches are made vertically by means of drill.
20. The LED display apparatus of claim 16, wherein the plurality of panels treated with fluorescent paint comprise fluorescent paint which is treated on the panels at the substantially same places as the dispersion scratches are made so that the sign by the dispersion scratch lights more intensely by the fluorescent paint.