RESIN BLACK MATRIX, LIGHT BLOCKING PHOTOSENSITIVE RESIN COMPOSITION, TFT ELEMENT SUBSTRATE AND LIQUID CRYSTAL DISPLAY DEVICE

• US 20100243970A1
• Filed: 08/20/2008
• Published: 09/30/2010
• Est. Priority Date: 08/22/2007
• Status: Abandoned Application

• Current Assignee: Mitsubishi Chemical Corporation (Mitsubishi Chemical Group Corp.)
• Original Assignee: Mitsubishi Chemical Corporation (Mitsubishi Chemical Group Corp.)
• Inventors: Kadowaki, Masami, Hirota, Takao, Toshimitsu, Eriko
• Application Number:
  US12/674,170
• Publication Number:
  US 20100243970A1
• Time in Patent Office: Days
• US Class Current: 252/582
• CPC Class Codes: G02B 5/223 containing organic substances, e.g. dyes, inks or pigments
• CPC Class Codes: G02F 1/136209 Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
• CPC Class Codes: G02F 2202/02 organic material
• CPC Class Codes: G02F 2202/04 dye
• CPC Class Codes: G03F 7/0007 Filters, e.g. additive colour filters; Components for display devices
• CPC Class Codes: G03F 7/031 Organic compounds not covered by group G03F7/029

Abstract

Provided is a highly reliable resin black matrix, which has sufficient light-blocking characteristics, suppresses temperature increase due to heat generated by a TFT element and does not have failures of a TFT element substrate and fluctuation in liquid crystal drive. The maximum light transmittance of the resin black matrix in a wavelength range of 400 nm-700 nm is permitted to be 1% or less and the average light transmittance in a wavelength range of 850 nm-3,000 nm to be 60% or higher. Alternatively, the minimum light transmittance is permitted to be 50% or more.

Claims

1-14. -14. (canceled)

15. A resin black matrix that has a maximum light transmittance of 1% or less over the wavelength range of 400 nm to 700 nm, and that satisfies one of (i) and (ii) described below:

(i) an average light transmittance of 60% or more over the wavelength range of 850 nm to 3000 nm, and

(ii) a minimum light transmittance of 50% or more over the wavelength range of 850 nm to 3000 nm.

16. The resin black matrix according to claim 15, having a standard deviation of the light transmittances of 0.1% or less over the wavelength range of 400 nm to 700 nm.

17. The resin black matrix according to claim 15, having a volume resistivity of 1×

10¹³ Ω

·

cm or more and a dielectric constant of 5 or less.

18. The resin black matrix according to claim 15, being formed on a TFT element substrate.

19. The resin black matrix according to claim 15, comprising a light-blocking component, wherein 95% or more of the light-blocking component comprises an organic pigment.

20. The resin black matrix according to claim 15, comprising organic pigments of a combination of organic pigments selected from at least three groups of the groups (a) to (f):

(a) a red pigment selected from C.I. Pigment Reds 177, 209, 224, and 254;

(b) a blue pigment being C.I. Pigment Blue 15;

6;

(c) a green pigment selected from C.I. Pigment Greens 7 and 36;

(d) a yellow pigment selected from C.I. Pigment Yellows 83, 138, 139, 150, and 180;

(e) a purple pigment being C.I. Pigment Violet 23; and

(f) an orange pigment selected from C.I. Pigment Oranges 38 and 71;

such that said resin black matrix has a standard deviation of light transmittances of 0.1% or less over the wavelength range of 400 nm to 700 nm.

21. A TFT element substrate on which the resin black matrix according to claim 15 is fabricated.

22. A liquid crystal display device comprising the resin black matrix according to claim 15.

23. A resin black matrix comprising a light-blocking component,

wherein 95% or more of said light-blocking component comprises an organic pigment, comprising organic pigments of a combination of organic pigments selected from at least three groups of the groups (a) to (f):

(a) a red pigment selected from C.I. Pigment Reds 177, 209, 224, and 254;

(b) a blue pigment being C.I. Pigment Blue 15;

6;

(c) a green pigment selected from C.I. Pigment Greens 7 and 36;

(d) a yellow pigment selected from C.I. Pigment Yellows 83, 138, 139, 150, and 180;

(e) a purple pigment being C.I. Pigment Violet 23; and

(f) an orange pigment selected from C.I. Pigment Oranges 38 and 71;

such that said resin black matrix has a standard deviation of light transmittances of 0.1% or less over the wavelength range of 400 nm to 700 nm.

24. A TFT element substrate on which the resin black matrix according to claim 23 is fabricated.

25. A liquid crystal display device comprising the resin black matrix according to claim 23.