US20020158414A1 - Dart board display device - Google Patents

Dart board display device Download PDF

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Publication number
US20020158414A1
US20020158414A1 US09/894,026 US89402601A US2002158414A1 US 20020158414 A1 US20020158414 A1 US 20020158414A1 US 89402601 A US89402601 A US 89402601A US 2002158414 A1 US2002158414 A1 US 2002158414A1
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United States
Prior art keywords
board
polarization
display device
liquid crystal
crystal display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US09/894,026
Inventor
Chih-Hao Yiu
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20020158414A1 publication Critical patent/US20020158414A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J3/00—Targets for arrows or darts, e.g. for sporting or amusement purposes

Definitions

  • the present invention relates to a dart board display device using liquid crystal display which is cooperated with two polarization boards which are rotated 90 degrees so as to obtain light points on the display device.
  • FIG. 5 shows a display device using liquid crystal display (LCD) includes a reflection board 10 and an inner polarization board 11 and an outer polarization board 110 .
  • Two glass boards 12 are respectively connected to the two polarization boards 11 , 110 and two circuit boards 14 are connected to the two glass boards 12 .
  • a liquid crystal display 13 is clamped between the two circuit boards 14 which provide electric voltage to arrange the dark points 131 of the liquid crystal display 13 so that the information can be displayed by the arrangement of the dark points 131 .
  • a dart board and comprises a frame having a body restrained therein and a display device is engaged with the frame.
  • the display device has a reflection board with an inner polarization board connected thereto and an inner glass board is connected to the inner polarization board.
  • An inner circuit board is connected to the inner glass board 33 and a liquid crystal display board is connected to the inner circuit board.
  • An outer circuit board is connected to the liquid crystal display board and an outer glass board is connected to the outer circuit board.
  • An outer polarization board is connected to the outer glass board. The inner polarization board and the outer polarization board are both rotated 90 degrees.
  • the primary object of the present invention is to provide a dart board display device that employs a liquid crystal display board and two reflection boards wherein the two reflection boards are rotated 90 degrees so as to obtain light points on the liquid crystal display board.
  • FIG. 1 is a plan view to show a dart board with a display device of the present invention
  • FIG. 2 is a cross sectional view to show the display device of the present invention
  • FIG. 3 is a perspective view to show the display device of the present invention with the two reflection boards being rotated 90 degrees;
  • FIG. 4 is a cross sectional view to show the display device of the present invention, wherein two polarization areas are defined in each of the polarization boards, and
  • FIG. 5 is a cross sectional view to show a conventional display device of the present invention.
  • the dart board includes a frame 20 and a body 21 is restrained in the frame 20 .
  • a plurality of separation ribs 210 separate the body 21 into several score partitions.
  • a display device 30 of the present invention is engaged with the frame 20 and comprises a reflection board 31 which has an active light source such as a light emitting diode, and an inner polarization board 32 is connected to the reflection board 31 .
  • An inner glass board 33 has a first surface thereof connected to the inner polarization board 32 and an inner circuit board 35 has a first surface thereof connected to a second surface of the inner glass board 33 .
  • a liquid crystal display board 34 has a first surface thereof connected to a second surface of the inner circuit board 35 and an outer circuit board 350 has a first surface thereof connected to a second surface of the liquid crystal display board 34 .
  • An outer glass board 330 has a first surface thereof connected to a second surface of the outer circuit board 350 and an outer polarization board 320 has a first surface thereof connected to a second surface of the outer glass board 330 .
  • the inner polarization board 32 and the outer polarization board 320 are both rotated 90 degrees as shown in FIG. 3 so as to obtain light points 341 on the liquid crystal display board 34 .
  • the scores displayed on the display device of the present invention can be seen clearly in a dark room.
  • the inner polarization board 32 and the outer polarization board 320 each have two polarization areas 321 and 322 between which 90 degrees polarization degrees are defined.
  • the information on the liquid crystal display board 34 can be shown by light point mold or dark point mold on the display device 30 .
  • the inner polarization board 32 and the outer polarization board 320 are able to be slidable on the display device 30 so that the players can control the display molds by moving the inner polarization board 32 and the outer polarization board 320 .
  • a time control member such as an IC chip can be used to set a period of time during which the light points 341 are on so as to save the electric energy of the display device 30 .

Abstract

A dart board display device includes a reflection board having with an inner polarization board connected thereto, an inner glass board connected to the inner polarization board and an inner circuit board connected to the inner glass board. A liquid crystal display board is connected to the inner circuit board and an outer circuit board is connected to the liquid crystal display board. An outer glass board is connected to the outer circuit board and an outer polarization board is connected to the outer glass board. The inner polarization board and the outer polarization board are both rotated 90 degrees so as to obtain light points on the liquid crystal display board.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a dart board display device using liquid crystal display which is cooperated with two polarization boards which are rotated 90 degrees so as to obtain light points on the display device. [0001]
    • BACKGROUND OF THE INVENTION
  • There are two conventional dart board display devices for displaying scores, one employs a light emitting diode and the other employs a liquid crystal display. The display device using light emitting diodes can only display simple type of information. However, the light emitting diodes display the information clearly and brightly so that the display device can be used in a dark place so that the players see the scores on the display device clearly even if the room is dark. On the contrary, the display device using liquid crystal display can provide vigorous and colorful motion pictures. Nevertheless, the display device using liquid crystal display cannot light by itself so that it cannot be used in a dark area so that when the dart game is used in a dark area, the players have to come close to the display device to see the information. FIG. 5 shows a display device using liquid crystal display (LCD) includes a [0002] reflection board 10 and an inner polarization board 11 and an outer polarization board 110. Two glass boards 12 are respectively connected to the two polarization boards 11, 110 and two circuit boards 14 are connected to the two glass boards 12. A liquid crystal display 13 is clamped between the two circuit boards 14 which provide electric voltage to arrange the dark points 131 of the liquid crystal display 13 so that the information can be displayed by the arrangement of the dark points 131.
    • SUMMARY OF THE INVENTION
  • In accordance with one aspect of the present invention, there is provided a dart board and comprises a frame having a body restrained therein and a display device is engaged with the frame. The display device has a reflection board with an inner polarization board connected thereto and an inner glass board is connected to the inner polarization board. An inner circuit board is connected to the [0003] inner glass board 33 and a liquid crystal display board is connected to the inner circuit board. An outer circuit board is connected to the liquid crystal display board and an outer glass board is connected to the outer circuit board. An outer polarization board is connected to the outer glass board. The inner polarization board and the outer polarization board are both rotated 90 degrees.
  • The primary object of the present invention is to provide a dart board display device that employs a liquid crystal display board and two reflection boards wherein the two reflection boards are rotated 90 degrees so as to obtain light points on the liquid crystal display board. [0004]
  • The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention. [0005]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a plan view to show a dart board with a display device of the present invention; [0006]
  • FIG. 2 is a cross sectional view to show the display device of the present invention; [0007]
  • FIG. 3 is a perspective view to show the display device of the present invention with the two reflection boards being rotated 90 degrees; [0008]
  • FIG. 4 is a cross sectional view to show the display device of the present invention, wherein two polarization areas are defined in each of the polarization boards, and [0009]
  • FIG. 5 is a cross sectional view to show a conventional display device of the present invention.[0010]
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring to FIGS. [0011] 1 to 3, the dart board includes a frame 20 and a body 21 is restrained in the frame 20. A plurality of separation ribs 210 separate the body 21 into several score partitions. A display device 30 of the present invention is engaged with the frame 20 and comprises a reflection board 31 which has an active light source such as a light emitting diode, and an inner polarization board 32 is connected to the reflection board 31. An inner glass board 33 has a first surface thereof connected to the inner polarization board 32 and an inner circuit board 35 has a first surface thereof connected to a second surface of the inner glass board 33. A liquid crystal display board 34 has a first surface thereof connected to a second surface of the inner circuit board 35 and an outer circuit board 350 has a first surface thereof connected to a second surface of the liquid crystal display board 34. An outer glass board 330 has a first surface thereof connected to a second surface of the outer circuit board 350 and an outer polarization board 320 has a first surface thereof connected to a second surface of the outer glass board 330. It is to be noted that the inner polarization board 32 and the outer polarization board 320 are both rotated 90 degrees as shown in FIG. 3 so as to obtain light points 341 on the liquid crystal display board 34. By the light points 341 on the liquid crystal display board 34, the scores displayed on the display device of the present invention can be seen clearly in a dark room.
  • As shown in FIG. 4, the [0012] inner polarization board 32 and the outer polarization board 320 each have two polarization areas 321 and 322 between which 90 degrees polarization degrees are defined. In other words, the information on the liquid crystal display board 34 can be shown by light point mold or dark point mold on the display device 30. The inner polarization board 32 and the outer polarization board 320 are able to be slidable on the display device 30 so that the players can control the display molds by moving the inner polarization board 32 and the outer polarization board 320. A time control member such as an IC chip can be used to set a period of time during which the light points 341 are on so as to save the electric energy of the display device 30.
  • While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention. [0013]

Claims (2)

What is claimed is:
1. A dart board comprising:
a frame having a body restrained in said frame, and
a display device engaged with said frame and having a reflection board, an inner polarization board connected to said reflection board, an inner glass board connected to said inner polarization board, an inner circuit board connected to said inner glass board, a liquid crystal display board connected to said inner circuit board, an outer circuit board connected to said liquid crystal display board, an outer glass board connected to said outer circuit board, and an outer polarization board connected to said outer glass board, said inner polarization board and said outer polarization board being both rotated 90 degrees.
2. The device as claimed in claim 1, wherein said inner polarization board and said outer polarization board each have two polarization areas between which 90 degrees polarization degrees are defined.
US09/894,026 2001-04-27 2001-06-29 Dart board display device Abandoned US20020158414A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW090206803U TW463940U (en) 2001-04-27 2001-04-27 Improved display structure of dart target
TW090206803 2001-04-27

Publications (1)

Publication Number Publication Date
US20020158414A1 true US20020158414A1 (en) 2002-10-31

Family

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US09/894,026 Abandoned US20020158414A1 (en) 2001-04-27 2001-06-29 Dart board display device

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US (1) US20020158414A1 (en)
DE (1) DE20111244U1 (en)
TW (1) TW463940U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD774142S1 (en) * 2015-04-29 2016-12-13 Jinwei Plastic Model Hardware Fty. Ltd. Target
USD917003S1 (en) * 2018-06-06 2021-04-20 JMA Outdoors, Inc. Simulating target
USD931372S1 (en) * 2020-12-15 2021-09-21 Shenzhen Lingtuowan Technology Co., Ltd. Target toy set
USD957523S1 (en) * 2021-04-20 2022-07-12 Yong Lin Toy target
US11415396B2 (en) 2017-11-06 2022-08-16 JMA Outdoors, Inc. Apparatus for generating a vitals target

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105749545B (en) * 2016-04-14 2023-03-24 薛梓瑗 Dart game equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731986A (en) * 1971-04-22 1973-05-08 Int Liquid Xtal Co Display devices utilizing liquid crystal light modulation
US4688897A (en) * 1985-06-17 1987-08-25 Hughes Aircraft Company Liquid crystal device
US4793618A (en) * 1986-11-03 1988-12-27 Arachnid, Inc. Self-scoring electronic target game with video display
US5318319A (en) * 1993-01-26 1994-06-07 Arachnid, Inc. Electronic cricket dart game
US5829755A (en) * 1997-06-25 1998-11-03 Chen; Wen-Kai Dart target with clock and alarm functions
US5986730A (en) * 1998-12-01 1999-11-16 Moxtek Dual mode reflective/transmissive liquid crystal display apparatus
US6081376A (en) * 1998-07-16 2000-06-27 Moxtek Reflective optical polarizer device with controlled light distribution and liquid crystal display incorporating the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731986A (en) * 1971-04-22 1973-05-08 Int Liquid Xtal Co Display devices utilizing liquid crystal light modulation
US4688897A (en) * 1985-06-17 1987-08-25 Hughes Aircraft Company Liquid crystal device
US4793618A (en) * 1986-11-03 1988-12-27 Arachnid, Inc. Self-scoring electronic target game with video display
US5318319A (en) * 1993-01-26 1994-06-07 Arachnid, Inc. Electronic cricket dart game
US5829755A (en) * 1997-06-25 1998-11-03 Chen; Wen-Kai Dart target with clock and alarm functions
US6081376A (en) * 1998-07-16 2000-06-27 Moxtek Reflective optical polarizer device with controlled light distribution and liquid crystal display incorporating the same
US6348995B1 (en) * 1998-07-16 2002-02-19 Moxtek Reflective optical polarizer device with controlled light distribution and liquid crystal display incorporating the same
US5986730A (en) * 1998-12-01 1999-11-16 Moxtek Dual mode reflective/transmissive liquid crystal display apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD774142S1 (en) * 2015-04-29 2016-12-13 Jinwei Plastic Model Hardware Fty. Ltd. Target
US11415396B2 (en) 2017-11-06 2022-08-16 JMA Outdoors, Inc. Apparatus for generating a vitals target
US11867484B2 (en) 2017-11-06 2024-01-09 JMA Outdoors, Inc. Apparatus for generating a vitals target
USD917003S1 (en) * 2018-06-06 2021-04-20 JMA Outdoors, Inc. Simulating target
USD931372S1 (en) * 2020-12-15 2021-09-21 Shenzhen Lingtuowan Technology Co., Ltd. Target toy set
USD957523S1 (en) * 2021-04-20 2022-07-12 Yong Lin Toy target

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Publication number Publication date
DE20111244U1 (en) 2001-08-30
TW463940U (en) 2001-11-11

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Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION