JPH0217790U - - Google Patents
Info
- Publication number
- JPH0217790U JPH0217790U JP9483488U JP9483488U JPH0217790U JP H0217790 U JPH0217790 U JP H0217790U JP 9483488 U JP9483488 U JP 9483488U JP 9483488 U JP9483488 U JP 9483488U JP H0217790 U JPH0217790 U JP H0217790U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- external light
- brightness
- crt
- deflection
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図はこの考案の一実施例を示す概略構成図
、第２図はこの考案のグリツドバイアス回路の詳
細図、第３図はこの考案の輝度信号増幅器の詳細
図、第４図は従来のＣＲＴデイスプレイ装置の概
略構成図、第５図はＣＲＴの詳細と各部に加わつ
ている電圧の関係を示す図、第６図は従来装置の
グリツドバイアス回路の詳細図、第７図は、従来
装置の輝度信号増幅器の詳細図である。
図において、１は表示信号発生部、２は偏向信
号増幅器、３は輝度信号増幅器、４はグリツドバ
イアス回路、５は高圧電源、６はＣＲＴ、７は外
光検出器、８はＣＲＴ駆動部、１５はバツフア回
路、１９は信号変換器である。なお、各図中同一
符号は同一または相当部分を示す。
Fig. 1 is a schematic diagram showing an embodiment of this invention, Fig. 2 is a detailed diagram of a grid bias circuit of this invention, Fig. 3 is a detailed diagram of a luminance signal amplifier of this invention, and Fig. 4 is a conventional diagram. 5 is a diagram showing the details of the CRT and the relationship between the voltages applied to each part, FIG. 6 is a detailed diagram of the grid bias circuit of the conventional device, and FIG. 7 is a diagram of the conventional CRT display device. FIG. 3 is a detailed diagram of the luminance signal amplifier of the device; In the figure, 1 is a display signal generator, 2 is a deflection signal amplifier, 3 is a brightness signal amplifier, 4 is a grid bias circuit, 5 is a high voltage power supply, 6 is a CRT, 7 is an external light detector, and 8 is a CRT drive unit. , 15 is a buffer circuit, and 19 is a signal converter. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
示信号発生部と、上記入力偏向信号を偏向電流信
号に変換し、ＣＲＴの偏向ヨークへ供給する偏向
信号増幅器と、上記輝度指令信号を輝度制御信号
に変換し、ＣＲＴのカソードへ供給する輝度信号
増幅器と、外部の明るさに比例した外光検出電流
信号を出力する外光検出器と、上記外光検出電流
信号を外光検出バイアス信号に変換する信号変換
器、上記信号変換器の外光検出バイアス信号を入
力しＣＲＴのグリツドを接続するバツフア回路か
らなり、外光の明るさに応じたグリツド制御電圧
をＣＲＴのグリツドへ供給するグリツドバイアス
回路と、ＣＲＴのアノードへ高電圧を供給する高
圧電源とを備えたことを特徴としたＣＲＴデイス
プレイ装置。 a display signal generator that generates an input deflection signal and a brightness command signal; a deflection signal amplifier that converts the input deflection signal into a deflection current signal and supplies it to the deflection yoke of the CRT; and a display signal generator that converts the brightness command signal into a brightness control signal. a brightness signal amplifier that supplies the cathode of the CRT, an external light detector that outputs an external light detection current signal proportional to external brightness, and a signal that converts the external light detection current signal into an external light detection bias signal. A converter, a buffer circuit that inputs the external light detection bias signal of the signal converter and connects the grid of the CRT, and a grid bias circuit that supplies a grid control voltage to the grid of the CRT according to the brightness of the external light. , and a high voltage power supply that supplies high voltage to the anode of the CRT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9483488U JPH0217790U (en) | 1988-07-18 | 1988-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9483488U JPH0217790U (en) | 1988-07-18 | 1988-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0217790U true JPH0217790U (en) | 1990-02-06 |
Family
ID=31319417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9483488U Pending JPH0217790U (en) | 1988-07-18 | 1988-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0217790U (en) |
-
1988
- 1988-07-18 JP JP9483488U patent/JPH0217790U/ja active Pending
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